(19)
(11)EP 3 200 176 B1

(12)EUROPEAN PATENT SPECIFICATION

(45)Mention of the grant of the patent:
06.05.2020 Bulletin 2020/19

(21)Application number: 15748149.0

(22)Date of filing:  08.01.2015
(51)Int. Cl.: 
G09G 3/20  (2006.01)
(86)International application number:
PCT/CN2015/070350
(87)International publication number:
WO 2016/045251 (31.03.2016 Gazette  2016/13)

(54)

IMAGE DISPLAY METHOD AND DISPLAY DEVICE

BILDANZEIGEVERFAHREN UND ANZEIGEVORRICHTUNG

PROCÉDÉ ET DISPOSITIF D'AFFICHAGE D'IMAGE


(84)Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30)Priority: 26.09.2014 CN 201410505565

(43)Date of publication of application:
02.08.2017 Bulletin 2017/31

(73)Proprietor: BOE Technology Group Co., Ltd.
Beijing 100015 (CN)

(72)Inventor:
  • JIN, Xiaodan
    Beijing 100176 (CN)

(74)Representative: Gesthuysen Patent- und Rechtsanwälte 
Patentanwälte Huyssenallee 100
45128 Essen
45128 Essen (DE)


(56)References cited: : 
EP-A1- 2 709 155
WO-A1-2011/002343
CN-A- 103 155 026
CN-A- 104 269 129
US-A1- 2010 026 728
EP-A2- 1 553 553
CN-A- 102 855 837
CN-A- 103 699 347
US-A1- 2009 160 871
US-A1- 2012 307 163
  
      
    Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).


    Description

    FIELD OF THE INVENTION



    [0001] The invention relates to technical field of displaying, especially to a method for displaying image and a display device.

    BACKGROUND OF THE INVENTION



    [0002] In existing flat panel display such as light emitting diode (LED) display, organic light emitting diode (OLED) display, plasma display panel (PDP) and liquid crystal display (LCD), as shown in fig.1, there is provide with a plurality of sub-pixels of different color arranged in array. In general, three sub-pixels of different color constitute one pixel (as shown by the heavy line in figure 1), in which the different color includes red (R), green (G) and blue (B). Alternatively, four or more sub-pixels of different color constitute one pixel. In case each pixel in the flat panel display contains three sub-pixels of different color, if a RGB signal is inputted for sub-pixels in each pixel within displaying time of one frame, the image will be displayed by the flat panel display on the basis of a resolution determined by the size of pixel.

    [0003] At present, with the increasing requirement for resolution of image displayed by the flat panel display, in general, to enhance resolution of image displayed by the flat panel display, the pixel size is reduced. However, as the pixel size becomes smaller, difficulty of the process for fabricating the flat panel display is higher. Therefore, resolution of the image displayed by the flat panel display can not be enhanced by solely reducing the pixel size, it is required to seek a new method for enhancing resolution of image displayed by the flat panel display.

    [0004] Hence, it is a problem to be solved by the skilled person in the art how to effectively enhance resolution of image displayed by the flat panel display without affecting normal display.

    [0005] Reference CN103699347A discloses a method for data transmission, a processor and a terminal. The method comprises the following steps that the processor converts RGB (Red Green Blue) data to Pentile data, and sends the Pentile data obtained after conversion to a display drive system, so that the display drive system sends a drive signal converted by the Pentile data into a display system. Therefore, an extra chip has no need to be used, so that the cost of hardware is reduced, and the power consumption and the electricity consumption of transmission are reduced.

    [0006] Reference US2012/307163A1 discloses a display device in which high resolution representation is made by generating and displaying display data for each sub-pixel, and in which reduction in image quality is improved. The display device is provided with a display panel in which one pixel is constructed from sub-pixels of at least 4 colors. The display device generates the display data for each sub-pixel in accordance with an input image signal, and displays the display data on the display panel. Within the sub-pixels, high brightness sub-pixels which are the two sub-pixels having the highest brightness are arranged alternately with the other sub-pixels. Also, the area of each high brightness sub-pixel is smaller than that of the other sub-pixels. In a preferred example, the areas of the two sub-pixels having the highest brightness and the areas of the other two sub-pixels have area ratios in the following order: 1.0:1.0:1.6:1.6.

    [0007] EP2709155A1 relates to a pixel arrangement structure of an organic light emitting diode (OLED) display. The pixel arrangement structure includes: a first pixel having a center coinciding with a center of a virtual square; a second pixel separated from the first pixel and having a center at a first vertex of the virtual square; and a third pixel separated from the first pixel and the second pixel, and having a center at a second vertex neighboring the first vertex of the virtual square. The first pixel, the second pixel, and the third pixel have polygonal shapes, wherein the first pixel has an octagonal shape, and at least one of the second pixel and the third pixel has a hexagonal shape.

    [0008] US2010/026728A1 discloses a display device including: a multi-primary-color display panel with subpixels arranged in a matrix pattern of columns and rows and a signal converter arranged to convert a video signal, having values that represent the colors of pixels with a matrix pattern, into a multi-primary-color signal for use in the multi-primary-color display panel. The signal converter associates a value of the video signal representing the color of at least one of pixels on a pth row with values of the multi-primary-color signal corresponding to the luminances of subpixels on (s-1)th and sth rows, and also associates a value of the video signal representing the color of at least one of the pixels on a (p+1)th row with values of the multi-primary-color signal corresponding to the luminances of subpixels on sth and (s+1)th rows.

    [0009] US2009/160871A1 provides an image data conversion method. The method comprises the following steps of (a) receiving an original image data having three basic-color sub-pixel data and (b) calculating at least one color-enhancing sub-pixel data according to any two basic-color sub-pixel data so as to convert the original image data into an image data having at least three basic-color sub-pixel data and one color-enhancing sub-pixel data.

    SUMMARY OF THE INVENTION



    [0010] In view of this, embodiments of the invention provide a method for display image and a display device, so as to effectively enhance resolution of image displayed by the flat panel display without affecting normal display.

    [0011] The invention is defined by the appended claims. Hence, when the word "embodiment" is used in the description, it should be interpreted as meaning an embodiment of the invention only when the combination of its respective features has a scope included within the scope of the appended claims.

    [0012] Beneficial effects of embodiments of the invention comprise:
    For above method for displaying image and display device provided by the embodiments of the invention, based on Hering color opponent-process theory, two pixels are constituted using four kinds of color: red (R), green (G), blue (B) and yellow (Y). And since in the display panel, the repeating group is constituted by 22 pixels, each repeating group contains two pixels composed of a B sub-pixel and a Y sub-pixel and two pixels composed of a R sub-pixel and a G sub-pixel, and sub-pixels included in neighboring pixels in the horizontal or vertical direction within the repeating group are different, thus compared to the existing arrangement in which three or more sub-pixels constitute one pixel, the number of sub-pixels in each pixel is reduced, enabling the resolution of image displayed to be enhanced under the same fabrication precision. And after converting the received RGB image signal of each pixel of the frame to be displayed into corresponding RG and BY image signal respectively, depending on arrangement of sub-pixels in each pixel of the display panel, image signal corresponding to sub-pixels of each pixel in the display panel is determined based on the RG image signal and the BY image signal corresponding to each pixel of the frame to be displayed, then the image is displayed, therefore, normal display can be ensured, image of the frame to be displayed can be rendered better.

    BRIEF DESCRIPTION OF DRAWINGS



    [0013] 

    Figure 1 is a schematic diagram of an arrangement of sub-pixels in existing flat panel display;

    Figure 2 is a flow diagram of a method for displaying image provided by an embodiment of the invention;

    Figure 3a is a schematic diagram of pixel arrangement in a display panel provided by an embodiment of the invention;

    Figure 3b is a schematic diagram of pixel arrangement in a display panel provided by another embodiment of the invention;

    Figure 4a is a detail diagram for black-white lines when image is displayed using the pixel arrangement shown in figure 3a.

    Figure 4b is a detail diagram for black-white lines when image is displayed using the pixel arrangement shown in figure 3b.

    Figure 5 is a schematic diagram of a structure of a display device provided by an embodiment of the invention.


    DETAILED DESCRIPTION OF EMBODIMENTS



    [0014] Next, specific implementations of the method for displaying image and the displaying device provided by embodiments of the invention will be described in detail in conjunction with accompanying drawings.

    [0015] As show in figure 2, a method for displaying image provided by an embodiment of the invention, comprises:

    S201, converting a received RGB image signal of each pixel of a frame to be displayed into corresponding RG image signal and BY image signal respectively;

    S202, determining image signal corresponding to sub-pixels of each pixel of the display panel based on the RG image signal and the BY image signal corresponding to each pixel of the frame to be displayed, depending on an arrangement of sub-pixels in each pixel of the display panel; wherein in the display panel, 22 pixels constitute a repeating group, each repeating group comprises two fist pixels composed of a B sub-pixel and a Y sub-pixel, as well as two second pixels composed of a R sub-pixel and a G sub-pixel, and sub-pixels included in neighboring pixels in the horizontal or vertical direction are different.

    S203, sending the determined image signal corresponding to sub-pixels in each pixel of the display panel to the display panel for displaying.



    [0016] In the above method for displaying image provided by the embodiment of the invention, based on Hering color opponent-process theory, two pixels are constituted by four kinds of color: red (R), green (G), blue (B) and yellow (Y). And since in the display panel, the repeating group is constituted by 22 pixels, each repeating group contains two first pixels composed of a B sub-pixel and a Y sub-pixel and two second pixels composed of a R sub-pixel and a G sub-pixel, and sub-pixels included in neighboring pixels in horizontal or vertical direction within the repeating group are different, thus compared to the existing arrangement in which three or more sub-pixels constitute one pixel, the number of sub-pixels in each pixel is reduced, enabling the resolution of image displayed to be enhanced under the same fabrication precision. And after converting the received RGB image signal of each pixel of the frame to be displayed into corresponding RG image signal and BY image signal respectively, depending on arrangement of sub-pixels in each pixel of the display panel, image signal corresponding to sub-pixels of each pixel in the display panel is determined based on the RG image signal and the BY image signal corresponding to each pixel of the frame to be displayed, then the image is displayed, therefore, normal display can be ensured, image of the frame to be displayed is rendered better.

    [0017] In specific implementation, in above method for displaying image provided by an embodiment of the invention, since a yellow (Y) image signal is not directly included in the received RGB image signal of each pixel of the frame to be displayed, the minimum among the R image signal and the G image signal can be used as a Y image signal when performing the step S201 to convert the received RGB image signal of each pixel of the frame to be displayed into corresponding RG image signal and BY image signal respectively, thereby using the Y image signal to compensate for the R image signal or the G image signal with relatively low brightness value, so as to increase displaying brightness. In the embodiment, one RG image signal and one BY image signal can be obtained from two RGB image signals, i.e. one RGB image signal may generate a RG image signal, the other RBG image signal may generate a BY image signal, and the RG image signal and the BY image signal can be computed by the following formulas ;

            R_O=R, G_O=G, B_O=B, Y_O=min(R, G);

    wherein R represents a value of the received R image signal of each pixel of the frame to be displayed; G represents a value of the received G image signal of each pixel of the frame to be displayed; B represents a value of the received B image signal of each pixel of the frame to be displayed; R_O represents a value of the converted R image signal of each pixel, G_O represents a value of the converted G image signal of each pixel, B_O represents a value of the converted B image signal of each pixel, Y_O represents a value of the converted Y image signal of each pixel.

    [0018] In specific implementation, in the above method for displaying image provided by the embodiment of the invention, there may be two kinds of arrangement of sub-pixels in each pixel of the display panel. In one case, the two sub-pixels in each pixel are arranged in the horizontal direction, as shown in figure 3a, in another case, the two sub-pixels in each pixel are arranged in a diagonal direction. For the pixel structure in which sub-pixels are arranged in the diagonal direction, the number of sub-pixels in the same horizontal line is relatively small compared to the pixel structure with sub-pixels arranged in horizontal direction, thus, requirement for fine metal mask (FFM) can be decreased in fabrication, which is beneficial for production. In other words, with the same precision of FMM, display panel with higher resolution can be fabricated using the pixel arrangement as shown in figure 3b.

    [0019] It is noted that, in figures 3a and 3b, only one repeating group consisting of 22 pixels is shown, and the left and right pixel in each repeating group can be exchangeable, relative position of the two sub-pixels in each pixel can be exchanged, as long as the condition is satisfied that each repeating group includes two pixels composed of a B sub-pixel and a Y sub-pixel as well as two pixels composed of a R sub-pixel and a G sub-pixel, and sub-pixels included in neighboring pixels in the horizontal or vertical direction within the repeating group are different.

    [0020] Furthermore, in specific implementation, above method for displaying image provided by the embodiment of the invention can be applied to organic light emitting diode (OLED) display, and can also be applied to liquid crystal display (LCD). The pixel arrangements of figures 3a and 3b are illustrated for the case in which the method is applied to OLED display. It can be seen that RG/BY light emitting regions corresponding to sub-pixel regions does not fill in the whole sub-pixel regions, and size of the area of RG/BY light emitting regions can be set depending on the light emission efficiency of each light emitting layer. It is considered that in general blue light is the weakest, red light is weaker, green light is stronger, and yellow light is similar to green light, area of light emission region with low light emission efficiency is large. Portions of figures 3a and 3b that are not filled are used to schematically illustrate respective light emission region, it can be seen that relative sizes of areas of respective light emission regions are as follows: B>=R>Y>=G.

    [0021] In specific implementation, for the above method for displaying image provided by embodiments of the invention, when performing the step S202, i.e. depending on arrangement of sub-pixels in each pixel of the display panel, determining image signal corresponding to sub-pixels of each pixel of the display panel based on the RG image signal and the BY image signal corresponding to each pixel of the frame to be displayed, there may be two ways of determining the image signal corresponding to sub-pixels of each pixel of the display panel depending on arrangement of sub-pixels in each pixel of the display panel.

    [0022] First, in the case where the two sub-pixels in each pixel of the display panel are arranged in the horizontal direction as shown in figure 3a, in the second pixel composed of a R sub-pixel and a G sub-pixel of each repeating group, image signal corresponding to the R sub-pixel is equal to corresponding converted R image signal of the pixel in the frame to be displayed, image signal corresponding to the G sub-pixel is equal to corresponding converted G image signal of the pixel in the frame to be displayed; in the first pixel composed of a B sub-pixel and a Y sub-pixel of each repeating group, image signal corresponding to the Y sub-pixel is equal to corresponding converted Y image signal of the pixel in the frame to be displayed, image signal corresponding to the B sub-pixel is equal to a mixing value of corresponding converted B image signal of the pixel in the frame to be displayed and B image signal in the RGB image signal of the original pixel in the frame to be displayed corresponding to a pixel adjacent to that pixel comprising B sub-pixel in the repeating group, the mixing value may be an average value of them, for example. In other words, in case the two sub-pixels in each pixel of the display panel are arranged in the horizontal direction as shown in figure 3a, only the image signal corresponding to the B sub-pixel is obtained from both the converted B image signal of the pixel to which the B sub-pixel belongs and B image signal in the RGB image signal of the original pixel corresponding to a pixel adjacent to that pixel comprising the B sub-pixel.

    [0023] Assuming that image of a frame to be displayed is composed of MN RGB pixels, since one RG image signal or one BY signal can be obtained from one RGB image signal, MN RG/BY pixels can be obtained after conversion for MN RGB pixels, in which M*N/2 RG pixels and M*N/2 BY pixels are included, and the display panel and image of the frame to be displayed can be divided into ij repeating groups, each of which comprises 22 pixels.

    [0024] In figure 3a, image signal R_P(il, jl) and R_P(i2, j2) corresponding to R sub-pixels in the pixel with coordinates (i1, j1) and (i2, j2) may be respectively equal to the corresponding converted R image signal R_O(i1, j1) and R_O(i2, j2) of the pixel in the frame to be displayed. That is, R_P(i1, j1)=R_O(i1, j1), R_P(i2, j2) =R_O(i2, j2).

    [0025] In figure 3a, image signal G_P(i1, j1) and G_P(i2, j2) corresponding to G sub-pixels in the pixel with coordinates (i1, j1) and (i2, j2) may be respectively equal to the corresponding converted G image signal G_O(i1, j1) and G_O(i2, j2) of the pixel in the frame to be displayed. That is, G_P(i1, j1)=G_O(i1, j1), G_P(i2, j2) =G_O(i2, j2).

    [0026] In figure 3a, image signal Y_P(i1, j2) and Y_P(i2, j1) corresponding to Y sub-pixels in the pixel with coordinates (i1, j2) and (i2, j1) may be respectively equal to the corresponding converted Y image signal Y_O(i1, j2) and Y_O(i2, j1) of the pixel in the frame to be displayed. That is, Y_P(i1, j2)=Y_O(i1, j2), Y_P(i2, j1) =Y_O(i2, j1).

    [0027] In figure 3a, image signal B_P(i1, j2) corresponding to a B sub-pixel in the pixel with coordinate (i1, j2) can be equal to the average value of the corresponding converted B image signal B_O(i1, j2) of the pixel in the frame to be displayed and B image signal B(i1, j1) in the RGB image signal of the original pixel corresponding to a neighboring RG pixel, that is, B_P(i1, j2)=(B(i1, j1)+B_O(i1,j2))/2; image signal B_P(i2, j1) corresponding to a B sub-pixel in the pixel with coordinate (i2, j1) can be equal to the average value of the corresponding converted B image signal B_O(i2, j1) of the pixel in the frame to be displayed and B image signal B(i2, j2) in the RGB image signal of the original pixel corresponding to a neighboring RG pixel, that is, B_P(i2, j1)=(B(i2, j2)+B_O(i2,j1))/2.

    [0028] That is, in case the two sub-pixels in each pixel of the display panel are arranged in horizontal direction, there may be two ways to determine the image signal corresponding to sub-pixels in each pixel of the display panel. One is the image signal corresponding to the sub-pixel is equal to the corresponding converted image signal of the sub-pixel in the frame to be displayed, i.e. the output is directly equal to the input. For example, this is the case for R sub-pixel, G sub-pixel and Y sub-pixel. Another one is having the image signal corresponding to the sub-pixel equaling to a mixing value of the corresponding converted image signal of the sub-pixel in the frame to be displayed and the image signal of the sub-pixel in the original pixel corresponding to a pixel adjacent to that pixel comprising the sub-pixel in the repeating group, i.e. the image signal corresponding to the sub-pixel is obtained by mixing the inputted image signal of respective sub-pixel and the image signal of the sub-pixel in the original pixel corresponding to a pixel adjacent to that pixel comprising the sub-pixel, for example, this is the case for the B sub-pixel.

    [0029] When complex picture is displayed by the pixel arrangement shown in figure 3a, the display effect may still satisfy requirement for viewing. Further, from the test of black-white line for such pixel arrangement, black-white line details may still ensure resolution, as shown in figure 4a.

    [0030] Second, in the case where the two sub-pixels in each pixel of the display panel are arranged in a diagonal direction as shown in figure 3b, in the second pixel composed of a R sub-pixel and a G sub-pixel of each repeating group, image signal corresponding to the G sub-pixel is equal to corresponding converted G image signal of the pixel in the frame to be displayed, image signal corresponding to R sub-pixel is equal to the mixing value of the corresponding converted R image signal of the pixel in the frame to be displayed and R image signal in the RGB image signal of the original pixel in the frame to be displayed corresponding to a pixel adjacent to that pixel comprising the R sub-pixel in the repeating group, for example, the mixing value may be the average value of them. In the first pixel composed of a B sub-pixel and a Y sub-pixel of each repeating group, image signal corresponding to the Y sub-pixel is equal to corresponding converted Y image signal of the pixel in the frame to be displayed, image signal corresponding to the B sub-pixel is equal to the mixing value of the corresponding converted B image signal of the pixel in the frame to be displayed and B image signal in the RGB image signal of the original pixel in the frame to be displayed corresponding to a pixel adjacent to that pixel comprising the B sub-pixel in the repeating group, for example, the mixing value may be the average value of them. That is, in case the two sub-pixels in each pixel of the display panel are arranged in a diagonal direction as shown in figure 3b, each of the B image signal corresponding to the B sub-pixel and the R image signal corresponding to the R sub-pixel is obtained by simultaneously using the B image signal or R image signal of the pixel to which they belong to and the B image signal or R image signal of the original pixel corresponding to a pixel adjacent to that pixel comprising the B sub-pixel or R sub-pixel.

    [0031] Assuming that image of a frame to be displayed is composed of MN RGB pixels, since one RG image signal or one BY signal can be obtained from one RGB image signal, MN RG/BY pixels can be obtained after conversion for MN RGB pixels, in which M*N/2 RG pixels and M*N/2 BY pixels are included, and the display panel and image of the frame to be displayed can be divided into ij repeating groups, each of which comprises 22 pixels.

    [0032] For example, in figure 3b, image signal R_P(i1, j1) corresponding to a R sub-pixel in the pixel with coordinate (i1, j1) is equal to the average value of the corresponding converted R image signal R_O(i1, j1) of the pixel in the frame to be displayed and R image signal R(i1, j2) in the RGB image signal of the original pixel corresponding to a neighboring pixel BY, that is, R_P(i1, j1)=(R(i1, j2)+R_O(i1,j1))/2, image signal R_P(i2, j2) corresponding to a R sub-pixel in the pixel with coordinate (i2, j2) is equal to the average value of the corresponding converted R image signal R_O(i2, j2) of the pixel in the frame to be displayed and R image signal R(i2, j 1) in the RGB image signal of the original pixel corresponding to a neighboring pixel BY, that is, R_P(i2, j2)=(R(i2, j1)+R_O(i2,j2))/2.

    [0033] In figure 3b, image signal G_P(i1, j1) and G_P(i2, j2) corresponding to G sub-pixels with coordinates (i1, j1) and (i2, j2) are respectively equal to corresponding converted G image signal G_O(i1, j1) and G_O(i2, j2) of pixels in the frame to be displayed, that is, G_P(i1, j1)=G_O(i1, j1), G_P(i2, j2)=G_O(i2, j2).

    [0034] In figure 3b, image signal Y_P(i1, j2) and Y_P(i2, j 1) corresponding to Y sub-pixels with coordinates (i1, j2) and (i2, j1) are respectively equal to the corresponding converted Y image signal Y_O(i1, j2) and Y_O(i2, j1) of pixels in the frame to be displayed, that is, Y_P(i1, j2)=Y_O(i1, j2), Y_P(i2, j1)=Y_O(i2, j1).

    [0035] In figure 3b, image signal B_P(i1, j2) corresponding to a B sub-pixel in the pixel with coordinate (i1, j2) is equal to the average value of corresponding converted B image signal B_O(i1, j2) of the pixel in the frame to be displayed and B image signal B(i1, j1) in the RGB image signal of the original pixel corresponding to a neighboring pixel RG, that is, B_P(i1,j2)=(B(i1,j1)+B_O(i1,j2))/2, image signal B_P(i2, j1) corresponding to a B sub-pixel in the pixel with coordinate (i2, j1) is equal to the average value of corresponding converted B image signal B_O(i2, j1) of the pixel in the frame to be displayed and B image signal B(i2, j2) in the RGB image signal of the original pixel corresponding to a neighboring pixel RG, that is, B_P(i2, j1)=(B(i2, j2)+B_O(i2,j1))/2.

    [0036] In other words, in case the two sub-pixels in each pixel of the display panel are arranged in a diagonal direction, there may be two ways of determining the image signal corresponding to sub-pixels in each pixel of the display panel. One is the image signal corresponding to the sub-pixel is equal to the corresponding converted image signal of the sub-pixel in the frame to be displayed, i.e. the output is directly equal to the input. For example, this is the case for the G sub-pixel and the Y sub-pixel. Another one is having the image signal corresponding to the sub-pixel equaling to a mixing value of the corresponding converted image signal of the sub-pixel in the frame to be displayed and the image signal of the sub-pixel in the original pixel corresponding to a pixel adjacent to that pixel comprising the sub-pixel in the repeating group, i.e. the image signal corresponding to the sub-pixel is obtained by mixing the inputted image signal of respective sub-pixel and the image signal of the sub-pixel in the original pixel corresponding to a pixel adjacent to that pixel comprising the sub-pixel, for example, this is the case for the R sub-pixel and the B sub-pixel.

    [0037] When a complex picture is displayed using the pixel arrangement shown in figure 3b, the display effect still satisfies requirement for viewing. Further, from the test of black-white line for such pixel arrangement, black-white line details may still ensure resolution, as shown in figure 4b.

    [0038] Based on the same inventive concept, a device for displaying image is also provided by an embodiment of the invention, for the principle to solve problems by the device is similar to that of the method for displaying image mentioned above, implementation of such device can be referred to that of the method above, and repetition will not be described in detail herein.

    [0039] Another embodiment of the invention provides a display device comprising a display panel 51 and a driving device 52 as shown in figure 5, wherein in the display panel 51, 22 pixels constitute a repeating group, each repeating group contains two pixels composed of a B sub-pixel and a Y sub-pixel, and two pixels composed of a R sub-pixel and a G sub-pixel, and sub-pixels included in neighboring pixels in the horizontal or vertical direction are different.

    [0040] The driving device 52 comprises: a receiving unit 521 configured to receive a RGB image signal of each pixel in a frame to be displayed; a converting unit 522 configured to convert the received RGB image signal of each pixel in the frame to be displayed into a corresponding RG image signal and BY image signal respectively; a determining unit 523 configured to determine the image signal corresponding to sub-pixels in each pixel of the display panel based on the RG image signal and the BY image signal corresponding to each pixel of the frame to be displayed depending on arrangement of sub-pixels in each pixel of the display panel; a sending unit 524 configured to send the determined image signal corresponding to sub-pixels in each pixel of the display panel to the display panel for displaying.

    [0041] In specific implementation, the converting unit 522 in the display device provided by the embodiment of the invention can be used for computing the RG image signal and the BY image signal by following formulas:

            R_O=R, G_O=G, B_O=B, Y_O=min(R, G);

    wherein R represents a value of the received R image signal of each pixel of the frame to be displayed; G represents a value of the received G image signal of each pixel of the frame to be displayed; B represents a value of the received B image signal of each pixel of the frame to be displayed; R_O represents a value of the converted R image signal of each pixel, G_O represents a value of the converted G image signal of each pixel, B_O represents a value of the converted B image signal of each pixel, Y_O represents a value of the converted Y image signal of each pixel.

    [0042] In specific implementation, in the display device provided by embodiments of the invention, the two sub-pixels in each pixel in the display panel 51 may be arranged in a horizontal direction or a diagonal direction.

    [0043] In specific implementation, in the display device provided by embodiments of the invention, if the two sub-pixels in each pixel in the display panel 51 are arranged in the horizontal direction, the determining unit 523 may determine the image signal corresponding to sub-pixels in each pixel of the display panel as follows: in the second pixel composed of a R sub-pixel and a G sub-pixel in each repeating group, image signal corresponding to the R sub-pixel is equal to the corresponding converted R image signal of the pixel in the frame to be displayed, image signal corresponding to the G sub-pixel is equal to the corresponding converted G image signal of the pixel in the frame to be displayed. In the first pixel composed of a B sub-pixel and a Y sub-pixel of each repeating group, image signal corresponding to the Y sub-pixel equals to corresponding converted Y image signal of the pixel in the frame to be displayed, image signal corresponding to the B sub-pixel equals to a mixing value of corresponding converted B image signal of the pixel in the frame to be displayed and B image signal in the RGB image signal of the original pixel in the frame to be displayed corresponding to a pixel adjacent to that pixel comprising the B sub-pixel.

    [0044] In specific implementation, in the display device provided by embodiments of the invention, if the two sub-pixels in each pixel in the display panel 51 are arranged in a diagonal direction, the determining unit 523 determines the image signal corresponding to sub-pixels in each pixel of the display panel as follows: in the second pixel composed of a R sub-pixel and a G sub-pixel in each repeating group, image signal corresponding to the G sub-pixel is equal to corresponding converted G image signal of the pixel in the frame to be displayed, image signal corresponding to the R sub-pixel is equal to the mixing value of corresponding converted R image signal of the pixel in the frame to be displayed and R image signal in the RGB image signal of the original pixel in the frame to be displayed corresponding to an pixel adjacent to that pixel comprising the R sub-pixel in the repeating group. In the first pixel composed of a B sub-pixel and a Y sub-pixel in each repeating group, image signal corresponding to the Y sub-pixel is equal to corresponding converted Y image signal of the pixel in the frame to be displayed, image signal corresponding to the B sub-pixel is equal to the mixing value of corresponding converted B image signal of the pixel in the frame to be displayed and R image signal in the RGB image signal of the original pixel in the frame to be displayed corresponding to a pixel adjacent to that pixel comprising the B sub-pixel in the repeating group.

    [0045] From the above description of embodiments of the invention, it is clear to the skilled in the art that embodiments of the invention can be implemented in hardware or by means of software plus necessary general purpose hardware platform. With such understanding, technical solutions of embodiments of the invention can by embodied in software production, which may be stored on a non-volatile storage medium (such as CD-ROM, USB flash disc, mobile hard disk, etc.), and comprise a number of instructions to cause one computer device (such as personal computer, server, or network device, etc.) to perform the method described in embodiments of the invention.

    [0046] It can be understood by the skilled person in the art that accompanying drawings are just schematic diagrams for several preferred embodiments, modules or flow in the figures are not necessarily essential to embodiments of the invention.

    [0047] It can be understood by the skilled person in the art that modules in devices of embodiments can be distributed in accordance with the description of the embodiments, and can also be distributed in one or more devices after modification that are different from those embodiments. Modules of above embodiments may be integrated into one module, and can also be divided into multiple sub-modules.

    [0048] Number of embodiments is just for description, and not represents advantages or disadvantages of embodiments.

    [0049] Moreover, it is noted that, the term "horizontal direction" or "vertical direction" mentioned in the description are not intended to restrict a fixed direction or orientation, the "horizontal direction" or "vertical direction" may be described with respect to different reference direction. For example, "horizontal direction" in a lateral coordinate may correspond to "vertical direction" in a longitudinal coordinate, and vice versa.

    [0050] In the above method for displaying image and display device provided by embodiments of the invention, based on Hering color opponent-process theory, two pixels are constituted using four kinds of color: red (R), green (G), blue (B) and yellow (Y). And since in the display panel, the repeating group is constituted by 22 pixels, each repeating group contains two pixels composed of a B sub-pixel and a Y sub-pixel and two pixels composed of a R sub-pixel and a G sub-pixel, and sub-pixels included in neighboring pixels in the horizontal or vertical direction within the repeating group are different, thus compared to the existing arrangement in which three or more sub-pixels constitute one pixel, the number of sub-pixels in each pixel is reduced, enabling the resolution of image displayed to be enhanced under the same fabrication precision. And after converting the received RGB image signal of each pixel of the frame to be displayed into corresponding RG and BY image signal respectively, depending on arrangement of sub-pixels in each pixel of the display panel, image signal corresponding to sub-pixels of each pixel in the display panel is determined based on the RG image signal and the BY image signal corresponding to each pixel of the frame to be displayed, then the image is displayed, therefore, normal display can be ensured, image of the frame to be displayed can be rendered better.

    [0051] Apparently, various modifications and variances for embodiments of the invention can be effected without departing the scope of the appending claims. Thus, if such modifications and variances fall within the scope of the appending claims, it is intended that these modifications and variances are included by the invention.


    Claims

    1. A method for displaying a RGB image signal on a display panel having 22 pixels which constitute a repeating group, each repeating group being composed of two first pixels and two second pixels, each first pixel being composed of a B sub-pixel and a Y sub-pixel, each second pixel being composed of a R sub-pixel and a G sub-pixel, wherein neighboring pixels in horizontal and vertical directions in the repeating group have different sub-pixels and wherein the two sub-pixels in each pixel of the display panel are arranged in a horizontal direction, R, G, B and Y representing red, green, blue and yellow respectively, comprising:

    converting (S201) a received RGB image signal of each pixel of a frame to be displayed into a RG image signal when said each pixel of the frame correspond to one of said second pixels of the display panel or BY image signal when said each pixel of the frame correspond to one of said first pixels of the display panel,

    calculating (S202) an image signal corresponding to sub-pixels in each pixel of the display panel based on the RG image signal or the BY image signal corresponding to each pixel of the frame to be displayed

    sending (S203) the image signal corresponding to sub-pixels in each pixel of the display panel to the display panel,

    wherein the step of converting the RGB image signal of each pixel of a frame to be displayed into a corresponding RG image signal or BY image signal respectively comprises:

    computing the RG image signal or the BY image signal by the following formulas:

            R_O=R, G_O=G, B_O=B, Y_O=min(R, G);

    wherein R represents a value of an R image signal of each pixel of the frame to be displayed; G represents a value of a G image signal of each pixel of the frame to be displayed; B represents a value of a B image signal of each pixel of the frame to be displayed; R_O represents a value of a converted R image signal of each pixel, G_O represents a value of a converted G image signal of each pixel, B_O represents a value of a converted B image signal of each pixel, Y_O represents a value of a converted Y image signal of each pixel, and min(R, G) represents a minimum of the value of the R image signal and the value of the G image signal,

    wherein the step of calculating image signal corresponding to sub-pixels in each pixel of a display panel based on the RG image signal or the BY image signal corresponding to each pixel of the frame to be displayed comprises:

    in the second pixel composed of a R sub-pixel and a G sub-pixel of each repeating group, image signal corresponding to the R sub-pixel equals to corresponding converted R image signal of the pixel in the frame to be displayed, image signal corresponding to the G sub-pixel equals to corresponding converted G image signal of the pixel in the frame to be displayed;

    in the first pixel composed of a B sub-pixel and a Y sub-pixel of each repeating group, image signal corresponding to the Y sub-pixel equals to corresponding converted Y image signal of the pixel in the frame to be displayed, image signal corresponding to the B sub-pixel equals to a mixing value of corresponding converted B image signal of the pixel in the frame to be displayed and B image signal in the RGB image signal of the original pixel in the frame to be displayed corresponding to a pixel adjacent to the pixel comprising the B sub-pixel in the repeating group.


     
    2. A method for displaying a RGB image signal on a display panel having 22 pixels which constitute a repeating group, each repeating group being composed of two first pixels and two second pixels, each first pixel being composed of a B sub-pixel and a Y sub-pixel, each second pixel being composed of a R sub-pixel and a G sub-pixel, wherein neighboring pixels in horizontal and vertical directions in the repeating group have different sub-pixels and wherein the two sub-pixels in each pixel of the display panel are arranged in a diagonal direction, R, G, B and Y representing red, green, blue and yellow respectively, comprising:

    converting (S201) a received RGB image signal of each pixel of a frame to be displayed into a RG image signal when said each pixel of the frame correspond to one of said second pixels of the display panel, or BY image signal when said each pixel of the frame correspond to one of said first pixels of the display panel;

    calculating (S202) an image signal corresponding to sub-pixels in each pixel of a display panel based on the RG image signal or the BY image signal corresponding to each pixel of the frame to be displayed;

    sending (S203) the image signal corresponding to sub-pixels in each pixel of the display panel to the display panel,

    wherein the step of converting the RGB image signal of each pixel of a frame to be displayed into a corresponding RG image signal or BY image signal respectively comprises:
    computing the RG image signal or the BY image signal by the following formulas:

            R_O=R, G_O=G, B_O=B, Y_O=min(R, G);

    wherein R represents a value of an R image signal of each pixel of the frame to be displayed; G represents a value of a G image signal of each pixel of the frame to be displayed; B represents a value of a B image signal of each pixel of the frame to be displayed; R O represents a value of a converted R image signal of each pixel, G_O represents a value of a converted G image signal of each pixel, B_O represents a value of a converted B image signal of each pixel, Y_O represents a value of a converted Y image signal of each pixel, and min(R, G) represents a minimum of the value of the R image signal and the value of the G image signal,

    wherein the step of calculating image signal corresponding to sub-pixels in each pixel of a display panel based on the RG image signal or the BY image signal corresponding to each pixel of the frame to be displayed comprises:

    in the second pixel composed of a R sub-pixel and a G sub-pixel of each repeating group, image signal corresponding to the G sub-pixel equals to corresponding converted G image signal of the pixel in the frame to be displayed, image signal corresponding to the R sub-pixel equals to a mixing value of corresponding converted R image signal of the pixel in the frame to be displayed and R image signal in the RGB image signal of the original pixel in the frame to be displayed corresponding to a pixel adjacent to that pixel comprising the R sub-pixel in the repeating group;

    in the first pixel composed of a B sub-pixel and a Y sub-pixel of each repeating group, image signal corresponding to the Y sub-pixel equals to corresponding converted Y image signal of the pixel in the frame to be displayed, image signal corresponding to the B sub-pixel equals to a mixing value of corresponding converted B image signal of the pixel in the frame to be displayed and B image signal in the RGB image signal of the original pixel in the frame to be displayed corresponding to a pixel adjacent to the pixel comprising the B sub-pixel in the repeating group.


     
    3. A display device comprising a display panel (51) and a driving device (52), wherein in the display panel (51), 22 pixels constitute a repeating group, each repeating group is composed of two first pixels and two second pixels, each first pixel being composed of a B sub-pixel and a Y sub-pixel, each second pixel being composed of a R sub-pixel and a G sub-pixel, R, G, B and Y representing red, green, blue and yellow respectively, wherein neighboring pixels in horizontal and vertical directions in the repeating group have different sub-pixels and wherein the two sub-pixels in each pixel of the display panel are arranged in a horizontal direction, the driving device (52) comprises:

    a receiving unit (521) arranged to receive a RGB image signal of each pixel of a frame to be displayed;

    a converting unit (522) arranged to convert the RGB image signal of each pixel of the frame to be displayed into a RG image signal when said each pixel of the frame correspond to one of said second pixels of the display panel, or BY image signal when said each pixel of the frame correspond to one of said first pixels of the display panel;

    a calculating unit (523) arranged to calculate an image signal corresponding to sub-pixels in each pixel of the display panel based on the RG image signal or the BY image signal corresponding to each pixel of the frame to be displayed and an arrangement of sub-pixels in each pixel of the display panel;

    a sending unit (524) arranged to send the image signal corresponding to sub-pixels in each pixel of the display panel to the display panel, wherein the converting unit (522) is configured to compute the RG image signal or the BY image signal by the following formulas:

            R_O=R, G_O=G, B_O=B, Y_O=min(R, G);

    wherein R represents a value of an R image signal of each pixel of the frame to be displayed; G represents a value of a G image signal of each pixel of the frame to be displayed; B represents a value of a B image signal of each pixel of the frame to be displayed; R_O represents a value of a converted R image signal of each pixel, G_O represents a value of a converted G image signal of each pixel, B_O represents a value of a converted B image signal of each pixel, Y_O represents a value of a converted Y image signal of each pixel, and min(R, G) represents a minimum of the value of the R image signal and the value of the G image signal, wherein the calculating unit calculates the image signal corresponding to sub-pixels in each pixel of the display panel as follows:

    in the second pixel composed of a R sub-pixel and a G sub-pixel of each repeating group, image signal corresponding to the R sub-pixel equals to corresponding converted R image signal of the pixel in the frame to be displayed, image signal corresponding to the G sub-pixel equals to corresponding converted G image signal of the pixel in the frame to be displayed;

    in the first pixel composed of a B sub-pixel and a Y sub-pixel of each repeating group, image signal corresponding to the Y sub-pixel equals to corresponding converted Y image signal of the pixel in the frame to be displayed, image signal corresponding to the B sub-pixel equals to a mixing value of corresponding converted B image signal of the pixel in the frame to be displayed and B image signal in the RGB image signal of the original pixel in the frame to be displayed corresponding to a pixel adjacent to the pixel comprising the B sub-pixel in the repeating group.


     
    4. A display device comprising a display panel (51) and a driving device (52), wherein in the display panel (51), 22 pixels constitute a repeating group, each repeating group is composed of two first pixels and two second pixels, each first pixel being composed of a B sub-pixel and a Y sub-pixel, each second pixel being composed of a R sub-pixel and a G sub-pixel, R, G, B and Y representing red, green, blue and yellow respectively, wherein neighboring pixels in horizontal and vertical directions in the repeating group have different sub-pixels and wherein the two sub-pixels in each pixel of the display panel are arranged in a diagonal direction, the driving device (52) comprises:

    a receiving unit (521) arranged to receive a RGB image signal of each pixel of a frame to be displayed;

    a converting unit (522) arranged to convert the RGB image signal of each pixel of the frame to be displayed into a RG image signal when said each pixel of the frame correspond to one of said second pixels of the display panel, or BY image signal when said each pixel of the frame correspond to one of said first pixels of the display panel;

    a calculating unit (523) arranged to calculate an image signal corresponding to sub-pixels in each pixel of the display panel based on the RG image signal or the BY image signal corresponding to each pixel of the frame to be displayed and an arrangement of sub-pixels in each pixel of the display panel;

    a sending unit (524) arranged to send the image signal corresponding to sub-pixels in each pixel of the display panel to the display panel, wherein the converting unit (522) is configured to compute the RG image signal or the BY image signal by the following formulas:

            R_O=R, G_O=G, B_O=B, Y_O=min(R, G);

    wherein R represents a value of an R image signal of each pixel of the frame to be displayed; G represents a value of a G image signal of each pixel of the frame to be displayed; B represents a value of a B image signal of each pixel of the frame to be displayed; R_O represents a value of a converted R image signal of each pixel, G_O represents a value of a converted G image signal of each pixel, B_O represents a value of a converted B image signal of each pixel, Y_O represents a value of a converted Y image signal of each pixel, and min(R, G) represents a minimum of the value of the R image signal and the value of the G image signal, wherein the calculating unit calculates the image signal corresponding to sub-pixels in each pixel of the display panel as follows:

    in the second pixel composed of a R sub-pixel and a G sub-pixel of each repeating group, image signal corresponding to the G sub-pixel equals to corresponding converted G image signal of the pixel in the frame to be displayed, image signal corresponding to the R sub-pixel equals to a mixing value of corresponding converted R image signal of the pixel in the frame to be displayed and R image signal in the RGB image signal of the original pixel in the frame to be displayed corresponding to a pixel adjacent to that pixel comprising the R sub-pixel in the repeating group;

    in the first pixel composed of a B sub-pixel and a Y sub-pixel of each repeating group, image signal corresponding to the Y sub-pixel equals to corresponding converted Y image signal of the pixel in the frame to be displayed, image signal corresponding to the B sub-pixel equals to a mixing value of corresponding converted B image signal of the pixel in the frame to be displayed and B image signal in the RGB image signal of the original pixel in the frame to be displayed corresponding to a pixel adjacent to the pixel comprising the B sub-pixel in the repeating group.


     


    Ansprüche

    1. Verfahren zum Anzeigen eines RGB-Bildsignals auf einem Anzeigefeld mit 22 Pixeln, die eine wiederholte Gruppe bilden, wobei jede wiederholte Gruppe aus zwei ersten Pixeln und zwei zweiten Pixeln zusammengesetzt ist, wobei jedes erste Pixel aus einem B-Subpixel und einem Y-Subpixel zusammengesetzt ist, wobei jedes zweite Pixel aus einem R-Subpixel und einem G-Subpixel zusammengesetzt ist, wobei benachbarte Pixel in Horizontal- und Vertikalrichtungen in der wiederholten Gruppe unterschiedliche Subpixel aufweisen, und wobei die zwei Subpixel in jedem Pixel das Anzeigefelds in einer Horizontalrichtung angeordnet sind, wobei R, G, B und Y jeweils Rot, Grün, Blau und Gelb darstellen, aufweisend:

    Umwandeln (S201) eines empfangenen RGB-Bildsignals von jedem Pixel eines Frames, der angezeigt werden soll, in ein RG-Bildsignal, wenn jedes Pixel des Rahmens einem der zweiten Pixel des Anzeigefelds entspricht, oder BY-Bildsignal, wenn jedes Pixel des Rahmens einem der ersten Pixel des Anzeigefelds entspricht,

    Berechnen (S202) eines Bildsignals, das Subpixeln in jedem Pixel des Anzeigefelds entspricht, basierend auf dem RG-Bildsignal oder dem BY-Bildsignal, das jedem Pixel des Frames, der angezeigt werden soll, entspricht;

    Senden (S203) des Bildsignals, das Subpixeln in jedem Pixel des Anzeigefelds entspricht, an das Anzeigefeld, wobei der Schritt des Umwandelns des RGB-Bildsignals von jedem Pixel eines Frames, der angezeigt werden soll, in jeweils ein entsprechendes RG-Bildsignal oder BY-Bildsignal aufweist:
    Errechnen des RG-Bildsignals oder des BY-Bildsignals durch die folgenden Formeln:

            R_O=R, G_O=G, B_O=B, Y_O=min(R, G);

    wobei R einen Wert eines R-Bildsignals von jedem Pixel des Frames, der angezeigt werden soll, darstellt; G einen Wert eines G-Bildsignals von jedem Pixel des Frames, der angezeigt werden soll, darstellt; B einen Wert eines B-Bildsignals von jedem Pixel des Frames, der angezeigt werden soll, darstellt; R_O einen Wert eines umgewandelten R-Bildsignals von jedem Pixel darstellt, G_O einen Wert eines umgewandelten G-Bildsignals von jedem Pixel darstellt, B_O einen Wert eines umgewandelten B-Bildsignals von jedem Pixel darstellt, Y_O einen Wert eines umgewandelten Y-Bildsignals von jedem Pixel darstellt und min(R, G) ein Minimum des Werts des R-Bildsignals und des Werts des G-Bildsignals darstellt,

    wobei der Schritt des Berechnens eines Bildsignals, das Subpixeln in jedem Pixel eines Anzeigefelds entspricht, basierend auf dem RG-Bildsignal oder dem BY-Bildsignal, das jedem Pixel des Frames, der angezeigt werden soll, entspricht, aufweist:

    im zweiten Pixel, das aus einem R-Subpixel und einem G-Subpixel von jeder wiederholten Gruppe zusammengesetzt ist, ist ein Bildsignal, das dem R-Subpixel entspricht, gleich einem entsprechenden umgewandelten R-Bildsignal des Pixels im Rahmen, der angezeigt werden soll, ist ein Bildsignal, das dem G-Subpixel entspricht, gleich einem entsprechenden umgewandelten G-Bildsignal des Pixels im Rahmen, der angezeigt werden soll;

    im ersten Pixel, das aus einem B-Subpixel und einem Y-Subpixel von jeder wiederholten Gruppe zusammengesetzt ist, ist ein Bildsignal, das dem Y-Subpixel entspricht, gleich einem entsprechenden umgewandelten Y-Bildsignal des Pixels im Rahmen, der angezeigt werden soll, ist ein Bildsignal, das dem B-Subpixel entspricht, gleich einem Mischwert eines entsprechenden umgewandelten B-Bildsignals des Pixels im Rahmen, der angezeigt werden soll, und eines B-Bildsignals im RGB-Bildsignal des ursprünglichen Pixels im Rahmen, der angezeigt werden soll, welches einem Pixel entspricht, das dem Pixel benachbart ist, welches das B-Subpixel in der wiederholten Gruppe aufweist.


     
    2. Verfahren zum Anzeigen eines RGB-Bildsignals auf einem Anzeigefeld mit 22 Pixeln, die eine wiederholte Gruppe bilden, wobei jede wiederholte Gruppe aus zwei ersten Pixeln und zwei zweiten Pixeln zusammengesetzt ist, wobei jedes erste Pixel aus einem B-Subpixel und einem Y-Subpixel zusammengesetzt ist, wobei jedes zweite Pixel aus einem R-Subpixel und einem G-Subpixel zusammengesetzt ist, wobei benachbarte Pixel in Horizontal- und Vertikalrichtungen in der wiederholten Gruppe unterschiedliche Subpixel aufweisen, und wobei die zwei Subpixel in jedem Pixel das Anzeigefelds in einer Diagonalrichtung angeordnet sind, wobei R, G, B und Y jeweils Rot, Grün, Blau und Gelb darstellen, aufweisend:

    Umwandeln (S201) eines empfangenen RGB-Bildsignals von jedem Pixel eines Frames, der angezeigt werden soll, in ein RG-Bildsignal, wenn jedes Pixel des Rahmens einem der zweiten Pixel des Anzeigefelds entspricht, oder BY-Bildsignal, wenn jedes Pixel des Rahmens einem der ersten Pixel des Anzeigefelds entspricht,

    Berechnen (S202) eines Bildsignals, das Subpixeln in jedem Pixel eines Anzeigefelds entspricht, basierend auf dem RG-Bildsignal oder dem BY-Bildsignal, das jedem Pixel des Frames, der angezeigt werden soll, entspricht;

    Senden (S203) des Bildsignals, das Subpixeln in jedem Pixel des Anzeigefelds entspricht, an das Anzeigefeld, wobei der Schritt des Umwandelns des RGB-Bildsignals von jedem Pixel eines Frames, der angezeigt werden soll, in jeweils ein entsprechendes RG-Bildsignal oder BY-Bildsignal aufweist:
    Errechnen des RG-Bildsignals oder des BY-Bildsignals durch die folgenden Formeln:

            R_O=R, G_O=G, B_O=B, Y_O=min(R, G);

    wobei R einen Wert eines R-Bildsignals von jedem Pixel des Frames, der angezeigt werden soll, darstellt; G einen Wert eines G-Bildsignals von jedem Pixel des Frames, der angezeigt werden soll, darstellt; B einen Wert eines B-Bildsignals von jedem Pixel des Frames, der angezeigt werden soll, darstellt; R_O einen Wert eines umgewandelten R-Bildsignals von jedem Pixel darstellt, G_O einen Wert eines umgewandelten G-Bildsignals von jedem Pixel darstellt, B_O einen Wert eines umgewandelten B-Bildsignals von jedem Pixel darstellt, Y_O einen Wert eines umgewandelten Y-Bildsignals von jedem Pixel darstellt und min(R, G) ein Minimum des Werts des R-Bildsignals und des Werts des G-Bildsignals darstellt,

    wobei der Schritt des Berechnens eines Bildsignals, das Subpixeln in jedem Pixel eines Anzeigefelds entspricht, basierend auf dem RG-Bildsignal oder dem BY-Bildsignal, das jedem Pixel des Frames, der angezeigt werden soll, entspricht, aufweist:

    im zweiten Pixel, das aus einem R-Subpixel und einem G-Subpixel von jeder wiederholten Gruppe zusammengesetzt ist, ist ein Bildsignal, das dem G-Subpixel entspricht, gleich einem entsprechenden umgewandelten G-Bildsignal des Pixels im Rahmen, der angezeigt werden soll, ist ein Bildsignal, das dem R-Subpixel entspricht, gleich einem Mischwert eines entsprechenden umgewandelten R-Bildsignals des Pixels im Rahmen, der angezeigt werden soll, und eines R-Bildsignals im RGB-Bildsignal des ursprünglichen Pixels im Rahmen, der angezeigt werden soll, welches einem Pixel entspricht, das dem Pixel benachbart ist, welches das R-Subpixel in der wiederholten Gruppe aufweist;

    im ersten Pixel, das aus einem B-Subpixel und einem Y-Subpixel von jeder wiederholten Gruppe zusammengesetzt ist, ist ein Bildsignal, das dem Y-Subpixel entspricht, gleich einem entsprechenden umgewandelten Y-Bildsignal des Pixels im Rahmen, der angezeigt werden soll, ist ein Bildsignal, das dem B-Subpixel entspricht, gleich einem Mischwert eines entsprechenden umgewandelten B-Bildsignals des Pixels im Rahmen, der angezeigt werden soll, und eines B-Bildsignals im RGB-Bildsignal des ursprünglichen Pixels im Rahmen, der angezeigt werden soll, welches einem Pixel entspricht, das dem Pixel benachbart ist, welches das B-Subpixel in der wiederholten Gruppe aufweist.


     
    3. Anzeigevorrichtung, aufweisend ein Anzeigefeld (51) und eine Antriebsvorrichtung (52), wobei im Anzeigefeld (51) 22 Pixel eine wiederholte Gruppe bilden, wobei jede wiederholte Gruppe aus zwei ersten Pixeln und zwei zweiten Pixeln zusammengesetzt ist, wobei jedes erste Pixel aus einem B-Subpixel und einem Y-Subpixel zusammengesetzt ist, wobei jedes zweite Pixel aus einem R-Subpixel und einem G-Subpixel zusammengesetzt ist, wobei R, G, B und Y jeweils Rot, Grün, Blau und Gelb darstellen, wobei benachbarte Pixel in Horizontal- und Vertikalrichtungen in der wiederholten Gruppe unterschiedliche Subpixel aufweisen, und wobei die zwei Subpixel in jedem Pixel das Anzeigefelds in einer Horizontalrichtung angeordnet sind, wobei die Antriebsvorrichtung (52) aufweist:

    eine Empfangseinheit (521), die zum Empfangen eines RGB-Bildsignals von jedem Pixel eines Frames, der angezeigt werden soll, angeordnet ist;

    eine Umwandlungseinheit (522), die zum Umwandeln des RGB-Bildsignals von jedem Pixel des Frames, der angezeigt werden soll, in ein RG-Bildsignal, wenn jedes Pixel des Rahmens einem der zweiten Pixel des Anzeigefelds entspricht, oder BY-Bildsignal, wenn jedes Pixel des Rahmens einem der ersten Pixel des Anzeigefelds entspricht, angeordnet ist;

    eine Berechnungseinheit (523), die zum Berechnen eines Bildsignals, das Subpixeln in jedem Pixel des Anzeigefelds entspricht, basierend auf dem RG-Bildsignal oder dem BY-Bildsignal, das jedem Pixel des Frames, der angezeigt werden soll, und einer Anordnung von Subpixeln in jedem Pixel des Anzeigefelds entspricht, angeordnet ist;

    eine Sendeeinheit (524), die zum Senden des Bildsignals, das Subpixeln in jedem Pixel des Anzeigefelds entspricht, an das Anzeigefeld angeordnet ist,

    wobei die Umwandlungseinheit (522) zum Errechnen des RG-Bildsignals oder des BY-Bildsignals durch die folgenden Formeln konfiguriert ist:

            R_O=R, G_O=G, B_O=B, Y_O=min(R, G);

    wobei R einen Wert eines R-Bildsignals von jedem Pixel des Frames, der angezeigt werden soll, darstellt; G einen Wert eines G-Bildsignals von jedem Pixel des Frames, der angezeigt werden soll, darstellt; B einen Wert eines B-Bildsignals von jedem Pixel des Frames, der angezeigt werden soll, darstellt; R_O einen Wert eines umgewandelten R-Bildsignals von jedem Pixel darstellt, G_O einen Wert eines umgewandelten G-Bildsignals von jedem Pixel darstellt, B_O einen Wert eines umgewandelten B-Bildsignals von jedem Pixel darstellt, Y_O einen Wert eines umgewandelten Y-Bildsignals von jedem Pixel darstellt und min(R, G) ein Minimum des Werts des R-Bildsignals und des Werts des G-Bildsignals darstellt,

    wobei die Berechnungseinheit das Bildsignal, das Subpixeln in jedem Pixel eines Anzeigefelds entspricht, wie folgt berechnet:

    im zweiten Pixel, das aus einem R-Subpixel und einem G-Subpixel von jeder wiederholten Gruppe zusammengesetzt ist, ist ein Bildsignal, das dem R-Subpixel entspricht, gleich einem entsprechenden umgewandelten R-Bildsignal des Pixels im Rahmen, der angezeigt werden soll, ist ein Bildsignal, das dem G-Subpixel entspricht, gleich einem entsprechenden umgewandelten G-Bildsignal des Pixels im Rahmen, der angezeigt werden soll;

    im ersten Pixel, das aus einem B-Subpixel und einem Y-Subpixel von jeder wiederholten Gruppe zusammengesetzt ist, ist ein Bildsignal, das dem Y-Subpixel entspricht, gleich einem entsprechenden umgewandelten Y-Bildsignal des Pixels im Rahmen, der angezeigt werden soll, ist ein Bildsignal, das dem B-Subpixel entspricht, gleich einem Mischwert eines entsprechenden umgewandelten B-Bildsignals des Pixels im Rahmen, der angezeigt werden soll, und eines B-Bildsignals im RGB-Bildsignal des ursprünglichen Pixels im Rahmen, der angezeigt werden soll, welches einem Pixel entspricht, das dem Pixel benachbart ist, welches das B-Subpixel in der wiederholten Gruppe aufweist.


     
    4. Anzeigevorrichtung, aufweisend ein Anzeigefeld (51) und eine Antriebsvorrichtung (52), wobei im Anzeigefeld (51) 22 Pixel eine wiederholte Gruppe bilden, wobei jede wiederholte Gruppe aus zwei ersten Pixeln und zwei zweiten Pixeln zusammengesetzt ist, wobei jedes erste Pixel aus einem B-Subpixel und einem Y-Subpixel zusammengesetzt ist, wobei jedes zweite Pixel aus einem R-Subpixel und einem G-Subpixel zusammengesetzt ist, wobei R, G, B und Y jeweils Rot, Grün, Blau und Gelb darstellen, wobei benachbarte Pixel in Horizontal- und Vertikalrichtungen in der wiederholten Gruppe unterschiedliche Subpixel aufweisen, und wobei die zwei Subpixel in jedem Pixel das Anzeigefelds in einer Diagonalrichtung angeordnet sind, wobei die Antriebsvorrichtung (52) aufweist:

    eine Empfangseinheit (521), die zum Empfangen eines RGB-Bildsignals von jedem Pixel eines Frames, der angezeigt werden soll, angeordnet ist;

    eine Umwandlungseinheit (522), die zum Umwandeln des RGB-Bildsignals von jedem Pixel des Frames, der angezeigt werden soll, in ein RG-Bildsignal, wenn jedes Pixel des Rahmens einem der zweiten Pixel des Anzeigefelds entspricht, oder BY-Bildsignal, wenn jedes Pixel des Rahmens einem der ersten Pixel des Anzeigefelds entspricht, angeordnet ist;

    eine Berechnungseinheit (523), die zum Berechnen eines Bildsignals, das Subpixeln in jedem Pixel des Anzeigefelds entspricht, basierend auf dem RG-Bildsignal oder dem BY-Bildsignal, das jedem Pixel des Frames, der angezeigt werden soll, und einer Anordnung von Subpixeln in jedem Pixel des Anzeigefelds entspricht, angeordnet ist;

    eine Sendeeinheit (524), die zum Senden des Bildsignals, das Subpixeln in jedem Pixel des Anzeigefelds entspricht, an das Anzeigefeld angeordnet ist,

    wobei die Umwandlungseinheit (522) zum Errechnen des RG-Bildsignals oder des BY-Bildsignals durch die folgenden Formeln konfiguriert ist:

            R_O=R, G_O=G, B_O=B, Y_O=min(R, G);

    wobei R einen Wert eines R-Bildsignals von jedem Pixel des Frames, der angezeigt werden soll, darstellt; G einen Wert eines G-Bildsignals von jedem Pixel des Frames, der angezeigt werden soll, darstellt; B einen Wert eines B-Bildsignals von jedem Pixel des Frames, der angezeigt werden soll, darstellt; R_O einen Wert eines umgewandelten R-Bildsignals von jedem Pixel darstellt, G_O einen Wert eines umgewandelten G-Bildsignals von jedem Pixel darstellt, B_O einen Wert eines umgewandelten B-Bildsignals von jedem Pixel darstellt, Y_O einen Wert eines umgewandelten Y-Bildsignals von jedem Pixel darstellt und min(R, G) ein Minimum des Werts des R-Bildsignals und des Werts des G-Bildsignals darstellt,

    wobei die Berechnungseinheit das Bildsignal, das Subpixeln in jedem Pixel eines Anzeigefelds entspricht, wie folgt berechnet:

    im zweiten Pixel, das aus einem R-Subpixel und einem G-Subpixel von jeder wiederholten Gruppe zusammengesetzt ist, ist ein Bildsignal, das dem G-Subpixel entspricht, gleich einem entsprechenden umgewandelten G-Bildsignal des Pixels im Rahmen, der angezeigt werden soll, ist ein Bildsignal, das dem R-Subpixel entspricht, gleich einem Mischwert eines entsprechenden umgewandelten R-Bildsignals des Pixels im Rahmen, der angezeigt werden soll, und eines R-Bildsignals im RGB-Bildsignal des ursprünglichen Pixels im Rahmen, der angezeigt werden soll, welches einem Pixel entspricht, das dem Pixel benachbart ist, welches das R-Subpixel in der wiederholten Gruppe aufweist;

    im ersten Pixel, das aus einem B-Subpixel und einem Y-Subpixel von jeder wiederholten Gruppe zusammengesetzt ist, ist ein Bildsignal, das dem Y-Subpixel entspricht, gleich einem entsprechenden umgewandelten Y-Bildsignal des Pixels im Rahmen, der angezeigt werden soll, ist ein Bildsignal, das dem B-Subpixel entspricht, gleich einem Mischwert eines entsprechenden umgewandelten B-Bildsignals des Pixels im Rahmen, der angezeigt werden soll, und eines B-Bildsignals im RGB-Bildsignal des ursprünglichen Pixels im Rahmen, der angezeigt werden soll, welches einem Pixel entspricht, das dem Pixel benachbart ist, welches das B-Subpixel in der wiederholten Gruppe aufweist.


     


    Revendications

    1. Procédé d'affichage d'un signal d'image RGB sur un panneau d'affichage ayant 22 pixels qui constituent un groupe répétitif, chaque groupe répétitif étant composé de deux premiers pixels et deux deuxièmes pixels, chaque premier pixel étant composé d'un sous-pixel B et d'un sous-pixel Y, chaque deuxième pixel étant composé d'un sous-pixel R et d'un sous-pixel G, des pixels voisins dans des directions horizontale et verticale dans le groupe répétitif ayant des sous-pixels différents et les deux sous-pixels dans chaque pixel du panneau d'affichage étant disposés dans une direction horizontale, R, G, B et Y représentant le rouge, le vert, le bleu et le jaune, respectivement, comprenant :

    la conversion (S201) d'un signal d'image RGB reçu de chaque pixel d'une trame devant être affichée en un signal d'image RG quand chaque dit pixel de la trame correspond à un desdits deuxièmes pixels du panneau d'affichage ou un signal d'image BY quand chaque dit pixel de la trame correspond à un desdits premiers pixels du panneau d'affichage ;

    le calcul (S202) d'un signal d'image correspondant à des sous-pixels dans chaque pixel du panneau d'affichage sur la base du signal d'image RG ou du signal d'image BY correspondant à chaque pixel de la trame devant être affichée ;

    l'envoi (S203) du signal d'image correspondant à des sous-pixels dans chaque pixel du panneau d'affichage au panneau d'affichage,

    dans lequel l'étape de conversion du signal d'image RGB de chaque pixel d'une trame devant être affichée en un signal d'image RG ou signal d'image BY correspondant comprend respectivement :
    le calcul du signal d'image RG ou du signal d'image BY par les formules suivantes :

            R_O=R, G_O=G, B_O=B, Y_O=min(R,G),

    dans lesquelles R représente une valeur d'un signal d'image R de chaque pixel de la trame devant être affichée ; G représente une valeur d'un signal d'image G de chaque pixel de la trame devant être affichée ; B représente une valeur d'un signal d'image B de chaque pixel de la trame devant être affichée ; R_O représente une valeur d'un signal d'image R converti de chaque pixel, G_O représente une valeur d'un signal d'image G converti de chaque pixel, B_O représente une valeur d'un signal d'image B converti de chaque pixel, Y_O représente une valeur d'un signal d'image Y converti de chaque pixel, et min(R,G) représente un minimum de la valeur du signal d'image R et de la valeur du signal d'image G,

    l'étape de calcul d'un signal d'image correspondant à des sous-pixels dans chaque pixel d'un panneau d'affichage sur la base du signal d'image RG ou du signal d'image BY correspondant à chaque pixel de la trame devant être affichée comprend :

    dans le deuxième pixel composé d'un sous-pixel R et d'un sous-pixel G de chaque groupe répétitif, un signal d'image correspondant au sous-pixel R est égal à un signal d'image R converti correspondant du pixel dans la trame devant être affichée, un signal d'image correspondant au sous-pixel G est égal à un signal d'image G converti correspondant du pixel dans la trame devant être affichée ;

    dans le premier pixel composé d'un sous-pixel B et d'un sous-pixel Y de chaque groupe répétitif, un signal d'image correspondant au sous-pixel Y est égal à un signal d'image Y converti correspondant du pixel dans la trame devant être affichée, un signal d'image correspondant au sous-pixel B est égal à une valeur de mélange d'un signal d'image B converti correspondant du pixel dans la trame devant être affichée et d'un signal d'image B dans le signal d'image RGB du pixel initial dans la trame devant être affichée correspondant à un pixel adjacent au pixel comprenant le sous-pixel B dans le groupe répétitif.


     
    2. Procédé d'affichage d'un signal d'image RGB sur un panneau d'affichage ayant 22 pixels qui constituent un groupe répétitif, chaque groupe répétitif étant composé de deux premiers pixels et deux deuxièmes pixels, chaque premier pixel étant composé d'un sous-pixel B et d'un sous-pixel Y, chaque deuxième pixel étant composé d'un sous-pixel R et d'un sous-pixel G, des pixels voisins dans des directions horizontale et verticale dans le groupe répétitif ayant des sous-pixels différents et les deux sous-pixels dans chaque pixel du panneau d'affichage étant disposés dans une direction diagonale, R, G, B et Y représentant le rouge, le vert, le bleu et le jaune, respectivement, comprenant :

    la conversion (S201) d'un signal d'image RGB reçu de chaque pixel d'une trame devant être affichée en un signal d'image RG quand chaque dit pixel de la trame correspond à un desdits deuxièmes pixels du panneau d'affichage, ou un signal d'image BY quand chaque dit pixel de la trame correspond à un desdits premiers pixels du panneau d'affichage ;

    le calcul (S202) d'un signal d'image correspondant à des sous-pixels dans chaque pixel du panneau d'affichage sur la base du signal d'image RG ou du signal d'image BY correspondant à chaque pixel de la trame devant être affichée ;

    l'envoi (S203) du signal d'image correspondant à des sous-pixels dans chaque pixel du panneau d'affichage au panneau d'affichage,

    dans lequel l'étape de conversion du signal d'image RGB de chaque pixel d'une trame devant être affichée en un signal d'image RG ou signal d'image BY correspondant comprend respectivement :
    le calcul du signal d'image RG ou du signal d'image BY par les formules suivantes :

            R_O=R, G_O=G, B_O=B, Y_O=min(R,G),

    dans lesquelles R représente une valeur d'un signal d'image R de chaque pixel de la trame devant être affichée ; G représente une valeur d'un signal d'image G de chaque pixel de la trame devant être affichée ; B représente une valeur d'un signal d'image B de chaque pixel de la trame devant être affichée ; R_O représente une valeur d'un signal d'image R converti de chaque pixel, G_O représente une valeur d'un signal d'image G converti de chaque pixel, B_O représente une valeur d'un signal d'image B converti de chaque pixel, Y_O représente une valeur d'un signal d'image Y converti de chaque pixel, et min(R,G) représente un minimum de la valeur du signal d'image R et de la valeur du signal d'image G,

    dans lequel l'étape de calcul d'un signal d'image correspondant à des sous-pixels dans chaque pixel d'un panneau d'affichage sur la base du signal d'image RG ou du signal d'image BY correspondant à chaque pixel de la trame devant être affichée comprend :

    dans le deuxième pixel composé d'un sous-pixel R et d'un sous-pixel G de chaque groupe répétitif, un signal d'image correspondant au sous-pixel G est égal à un signal d'image G converti correspondant du pixel dans la trame devant être affichée, un signal d'image correspondant au sous-pixel R est égal à une valeur de mélange d'un signal d'image R converti correspondant du pixel dans la trame devant être affichée et d'un signal d'image R dans le signal d'image RGB du pixel initial dans la trame devant être affichée correspondant à un pixel adjacent au pixel comprenant le sous-pixel R dans le groupe répétitif ;

    dans le premier pixel composé d'un sous-pixel B et d'un sous-pixel Y de chaque groupe répétitif, un signal d'image correspondant au sous-pixel Y est égal à un signal d'image Y converti correspondant du pixel dans la trame devant être affichée, un signal d'image correspondant au sous-pixel B est égal à une valeur de mélange d'un signal d'image B converti correspondant du pixel dans la trame devant être affichée et d'un signal d'image B dans le signal d'image RGB du pixel initial dans la trame devant être affichée correspondant à un pixel adjacent au pixel comprenant le sous-pixel B dans le groupe répétitif.


     
    3. Dispositif d'affichage comprenant un panneau d'affichage (51) et un dispositif de commande (52), dans lequel, dans le panneau d'affichage (51), 22 pixels constituent un groupe répétitif, chaque groupe répétitif est composé de deux premiers pixels et deux deuxièmes pixels, chaque premier pixel étant composé d'un sous-pixel B et d'un sous-pixel Y, chaque deuxième pixel étant composé d'un sous-pixel R et d'un sous-pixel G, R, G, B et Y représentant le rouge, le vert, le bleu et le jaune, respectivement, dans lequel des pixels voisins dans des directions horizontale et verticale dans le groupe répétitif ont des sous-pixels différents et dans lequel les deux sous-pixels dans chaque pixel du panneau d'affichage sont disposés dans une direction horizontale, le dispositif de commande (52) comprend :

    une unité de réception (521) agencée pour recevoir un signal d'image RGB de chaque pixel d'une trame devant être affichée ;

    une unité de conversion (522) agencée pour convertir le signal d'image RGB de chaque pixel de la trame devant être affichée en un signal d'image RG quand chaque dit pixel de la trame correspond à un desdits deuxièmes pixels du panneau d'affichage, ou un signal d'image BY quand chaque dit pixel de la trame correspond à un desdits premiers pixels du panneau d'affichage ;

    une unité de calcul (523) agencée pour calculer un signal d'image correspondant à des sous-pixels dans chaque pixel du panneau d'affichage sur la base du signal d'image RG ou du signal d'image BY correspondant à chaque pixel de la trame devant être affichée et d'un agencement de sous-pixels dans chaque pixel du panneau d'affichage ;

    une unité d'envoi (524) agencée pour envoyer le signal d'image correspondant à des sous-pixels dans chaque pixel du panneau d'affichage au panneau d'affichage,

    dans lequel l'unité de conversion (522) est configurée pour calculer le signal d'image RG ou le signal d'image BY par les formules suivantes :

            R_O=R, G_O=G, B_O=B, Y_O=min(R,G),

    dans lesquelles R représente une valeur d'un signal d'image R de chaque pixel de la trame devant être affichée ; G représente une valeur d'un signal d'image G de chaque pixel de la trame devant être affichée ; B représente une valeur d'un signal d'image B de chaque pixel de la trame devant être affichée ; R_O représente une valeur d'un signal d'image R converti de chaque pixel, G_O représente une valeur d'un signal d'image G converti de chaque pixel, B_O représente une valeur d'un signal d'image B converti de chaque pixel, Y_O représente une valeur d'un signal d'image Y converti de chaque pixel, et min(R,G) représente un minimum de la valeur du signal d'image R et de la valeur du signal d'image G,

    l'unité de calcul calcule le signal d'image correspondant à des sous-pixels dans chaque pixel du panneau d'affichage comme suit :

    dans le deuxième pixel composé d'un sous-pixel R et d'un sous-pixel G de chaque groupe répétitif, un signal d'image correspondant au sous-pixel R est égal à un signal d'image R converti correspondant du pixel dans la trame devant être affichée, un signal d'image correspondant au sous-pixel G est égal à un signal d'image G converti correspondant du pixel dans la trame devant être affichée ;

    dans le premier pixel composé d'un sous-pixel B et d'un sous-pixel Y de chaque groupe répétitif, un signal d'image correspondant au sous-pixel Y est égal à un signal d'image Y converti correspondant du pixel dans la trame devant être affichée, un signal d'image correspondant au sous-pixel B est égal à une valeur de mélange d'un signal d'image B converti correspondant du pixel dans la trame devant être affichée et d'un signal d'image B dans le signal d'image RGB du pixel initial dans la trame devant être affichée correspondant à un pixel adjacent au pixel comprenant le sous-pixel B dans le groupe répétitif.


     
    4. Dispositif d'affichage comprenant un panneau d'affichage (51) et un dispositif de commande (52), dans lequel, dans le panneau d'affichage (51), 22 pixels constituent un groupe répétitif, chaque groupe répétitif est composé de deux premiers pixels et deux deuxièmes pixels, chaque premier pixel étant composé d'un sous-pixel B et d'un sous-pixel Y, chaque deuxième pixel étant composé d'un sous-pixel R et d'un sous-pixel G, R, G, B et Y représentant le rouge, le vert, le bleu et le jaune, respectivement, dans lequel des pixels voisins dans des directions horizontale et verticale dans le groupe répétitif ont des sous-pixels différents et dans lequel les deux sous-pixels dans chaque pixel du panneau d'affichage sont disposés dans une direction diagonale, le dispositif de commande (52) comprend :

    une unité de réception (521) agencée pour recevoir un signal d'image RGB de chaque pixel d'une trame devant être affichée ;

    une unité de conversion (522) agencée pour convertir le signal d'image RGB de chaque pixel de la trame devant être affichée en un signal d'image RG quand chaque dit pixel de la trame correspond à un desdits deuxièmes pixels du panneau d'affichage, ou un signal d'image BY quand chaque dit pixel de la trame correspond à un desdits premiers pixels du panneau d'affichage ;

    une unité de calcul (523) agencée pour calculer un signal d'image correspondant à des sous-pixels dans chaque pixel du panneau d'affichage sur la base du signal d'image RG ou du signal d'image BY correspondant à chaque pixel de la trame devant être affichée et d'un agencement de sous-pixels dans chaque pixel du panneau d'affichage ;

    une unité d'envoi (524) agencée pour envoyer le signal d'image correspondant à des sous-pixels dans chaque pixel du panneau d'affichage au panneau d'affichage,

    dans lequel l'unité de conversion (522) est configurée pour calculer le signal d'image RG ou le signal d'image BY par les formules suivantes :

            R_O=R, G_O=G, B_O=B, Y_O=min(R,G),

    dans lesquelles R représente une valeur d'un signal d'image R de chaque pixel de la trame devant être affichée ; G représente une valeur d'un signal d'image G de chaque pixel de la trame devant être affichée ; B représente une valeur d'un signal d'image B de chaque pixel de la trame devant être affichée ; R_O représente une valeur d'un signal d'image R converti de chaque pixel, G_O représente une valeur d'un signal d'image G converti de chaque pixel, B_O représente une valeur d'un signal d'image B converti de chaque pixel, Y_O représente une valeur d'un signal d'image Y converti de chaque pixel, et min(R,G) représente un minimum de la valeur du signal d'image R et de la valeur du signal d'image G,

    l'unité de calcul calcule le signal d'image correspondant à des sous-pixels dans chaque pixel du panneau d'affichage comme suit :

    dans le deuxième pixel composé d'un sous-pixel R et d'un sous-pixel G de chaque groupe répétitif, un signal d'image correspondant au sous-pixel G est égal à un signal d'image G converti correspondant du pixel dans la trame devant être affichée, un signal d'image correspondant au sous-pixel R est égal à une valeur de mélange d'un signal d'image R converti correspondant du pixel dans la trame devant être affichée et d'un signal d'image R dans le signal d'image RGB du pixel initial dans la trame devant être affichée correspondant à un pixel adjacent au pixel comprenant le sous-pixel R dans le groupe répétitif ;

    dans le premier pixel composé d'un sous-pixel B et d'un sous-pixel Y de chaque groupe répétitif, un signal d'image correspondant au sous-pixel Y est égal à un signal d'image Y converti correspondant du pixel dans la trame devant être affichée, un signal d'image correspondant au sous-pixel B est égal à une valeur de mélange d'un signal d'image B converti correspondant du pixel dans la trame devant être affichée et d'un signal d'image B dans le signal d'image RGB du pixel initial dans la trame devant être affichée correspondant à un pixel adjacent au pixel comprenant le sous-pixel B dans le groupe répétitif.


     




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    REFERENCES CITED IN THE DESCRIPTION



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    Patent documents cited in the description