(19)
(11)EP 3 214 650 B1

(12)EUROPEAN PATENT SPECIFICATION

(45)Mention of the grant of the patent:
29.04.2020 Bulletin 2020/18

(21)Application number: 15793670.9

(22)Date of filing:  09.02.2015
(51)International Patent Classification (IPC): 
G09G 3/20(2006.01)
H01L 51/00(2006.01)
G09G 3/32(2016.01)
H01L 27/32(2006.01)
(86)International application number:
PCT/CN2015/072538
(87)International publication number:
WO 2016/065770 (06.05.2016 Gazette  2016/18)

(54)

ORGANIC LIGHT EMITTING DIODE DISPLAY DEVICE, DRIVING METHOD AND DISPLAY APPARATUS THEREOF

ORGANISCHE ELEKTROLUMINESZENZANZEIGEVORRICHTUNG, ANTRIEBSVERFAHREN DAFÜR UND ANZEIGEVORRICHTUNG

DISPOSITIF D'AFFICHAGE À DIODES ÉLECTROLUMINESCENTES ORGANIQUES, SON PROCÉDÉ DE COMMANDE ET APPAREIL D'AFFICHAGE CORRESPONDANT


(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: 27.10.2014 CN 201410584435

(43)Date of publication of application:
06.09.2017 Bulletin 2017/36

(73)Proprietors:
  • BOE Technology Group Co., Ltd.
    Beijing 100015 (CN)
  • Ordos Yuansheng Optoelectronics Co., Ltd.
    Ordos, Inner Mongolia 017020 (CN)

(72)Inventors:
  • BAI, Shanshan
    Beijing 100176 (CN)
  • JI, Fengli
    Beijing 100176 (CN)
  • XUAN, Minghua
    Beijing 100176 (CN)
  • LIU, Jiantao
    Beijing 100176 (CN)
  • XU, Jingbo
    Beijing 100176 (CN)

(74)Representative: Fritzsche, Thomas 
Fritzsche Patent Naupliastraße 110
81545 München
81545 München (DE)


(56)References cited: : 
CN-A- 103 151 018
CN-A- 103 777 393
CN-A- 104 319 283
US-A1- 2002 190 924
US-A1- 2012 092 238
CN-A- 103 208 507
CN-A- 104 036 710
CN-U- 201 638 818
US-A1- 2005 087 740
  
      
    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 present invention relates to the technical field of display, in particular to an organic electroluminescent display device, a driving method thereof and a display device.

    BACKGROUND OF THE INVENTION



    [0002] Organic light emitting diode (OLED) is one of the hot spots in the research of flat panel display today. Compared with liquid crystal display, the OLED display device has the advantages of low energy consumption, low production cost, self luminous, wide viewing angle, quick response and so on. At present, in the flat panel display field of mobile phone, PDA, digital cameras and so on, OLED display device has begun to replace the traditional liquid crystal display (LCD).

    [0003] The structure of an OLED display device mainly comprises: a basal substrate, and pixels arranged in a matrix formed on the basal substrate. Wherein the pixels are organic electroluminescent structures typically formed at corresponding pixel positions in an array substrate with organic material, by applying evaporation film technology through a high precision metal mask plate. In order to perform color display, an OLED display should be colorized. The best color image effect can be achieved with a side-by-side arrangement. The side-by-side arrangement refers to three sub pixels of red, green, blue (G, R, B) arranged in a range of one pixel, each sub pixel has a separate organic electroluminescent structure. due to the difference in the organic electroluminescent materials of red, green and blue sub pixels, in the production process, a metal mask plate is required for evaporation of three different organic electroluminescent materials for the red, green and blue sub-pixels (of three primary colors) at corresponding positions, and then adjust the color blending of these three colors, realizing true color.

    [0004] The key point for manufacturing OLED display device with high resolution (PPI) is high precise metal mask plate, which is precise and has a good mechanical stability; while the key point for high precise metal mask plate lies in the arrangement of pixels and sub pixels.

    [0005] Currently, in an existing OLED display device, the arrangement of the pixel array is typically a side-by-side arrangement. As shown in Fig. 1, the OLED display device comprises a basal substrate 1, and pixel units 2 arranged in an array on the basal substrate 1; a pixel unit 2 comprises three parallel sub pixels of red (R), green (G), and blue (B). In order to form the arrangement of the pixel, a corresponding metal mask plate is shown in Fig. 2. Fig. 2 schematically shows a metal mask plate used for forming a sub pixel (R sub pixel) in the pixel arrangement shown in Fig. 1. Since the patterns of the sub pixels are the same, a metal mask plate with the same structure can be used to form other sub pixels (G, B).

    [0006] In Fig. 2, a metal mask plate comprises a metal substrate 3 and rectangular openings 4 on the metal substrate 3. Since the sub pixels in a same column in the display device share a same opening, the length of the opening 4 in the metal mask plate is long. For low resolution display device, since the number of pixels is small, the width of the metal strip between adjacent openings 4 on the metal mask plate is wide; therefore the production, application and management of such metal mask plates is simple. However, with the increase of the display resolution, the width of the metal strip between adjacent openings in the metal mask plate is smaller, which causes that the metal strip between adjacent openings in the metal mask plate is easily deformed by external influence during the using process, resulting in color mixing due to the cross contamination of the organic electroluminescent materials with different colors in the sub pixels, causing a low yield rate of the product.

    [0007] In view of the above problems, a metal mask plate shown in Fig. 3 is proposed, to form a pixel arrangement as shown in Fig. 1. As shown in Fig. 3, the metal mask plate is provided by adding metal lapping bridges 5 at positions between adjacent sub pixels shown in Fig. 1 to the metal mask plate as shown in Fig. 2, to connect adjacent metal strips, modifying a opening 4 shown in Fig. 2 into openings 6 corresponding to the sub pixels shown in Fig. 1. Although the method can make the shape of the metal strips in the metal mask plate more stable, in order to avoid masking effect of the metal lapping bridges to the sub pixels, a sufficient distance should be kept between the sub pixels and the metal lapping bridges, which can reduce the size of the sub pixels, thus affecting the opening rate of the OLED display device.

    [0008] US 2002/190924A1 provides an active matrix display. In particular, it provides a combination of the arrangements of organic EL devices and pixel circuits, in which the pixel circuits are arrayed in a stripe arrangement in the circuitry layer. Contacts for the pixel units in two adjacent rows in the pixel arrangement are arrayed in a single dimension between the two rows. Thus, the contacts are positioned out of the emitting areas to minimize the decrease of the size of the emitting areas.

    [0009] CN 104036710A provides a pixel array comprising multiple pixel units. Each pixel unit comprises multiple sub-pixels with different colors. Ratio of length of each sub-pixel along a transverse direction to length of the sub-pixel along a vertical direction is from 1:2 to 1:1.

    [0010] US 2005/087740A1 provides an organic EL display device, in which emissive regions are arrayed in various patterns without depending on array patterns of the TFT formation regions and so on. In a display portion of the organic EL display device of top emission type, a plurality of TFT formation regions forms a rectangular shape and placed in a stripe array on the display portion. Some of emissive regions respectively form a shape different from others and are disposed in a stripe array over the adjacent TFT formation regions.

    SUMMARY OF THE INVENTION



    [0011] To this end, the embodiments of the present invention provide an organic electroluminescent display device, a driving method thereof and a display device, to provide an organic electroluminescent display device with a new pixel arrangement, achieving a metal mask plate with simple manufacture and high mechanical stability, thereby improving the production efficiency of high resolution organic electroluminescent display device, reducing production costs.

    [0012] Therefore, an embodiment of the present invention provides an organic electroluminescent display device; the organic electroluminescent display device comprises a basal substrate and several pixel unit groups arranged in a matrix on the basal substrate; each of the pixel unit groups comprises a first pixel unit subgroup and a second pixel unit subgroup; the first pixel unit subgroup and the second pixel unit subgroup are arranged along a first direction adjacent to each other, and comprise sub pixels with three different colors respectively; wherein,
    the first pixel unit subgroup comprises a sub pixel sequence in an order of a first sub pixel, a second sub pixel and a third sub pixel along a second direction;
    the second pixel unit subgroup comprises a sub pixel sequence in an order of the third sub pixel, the first sub pixel and the second sub pixel along the second direction;
    in the same pixel unit group, the component of the distance between centers of two adjacent first sub pixels respectively located in the first pixel unit subgroup and the second pixel unit subgroup in the second direction, the component of the distance between centers of two adjacent second sub pixels respectively located in the first pixel unit subgroup and the second pixel unit subgroup in the second direction, and the component of the distance between centers of two adjacent third sub pixels respectively located in the first pixel unit subgroup and the second pixel unit subgroup in the second direction, are all equal;
    the size of the third sub pixel is smaller than the size of the first sub pixel and the size of the second sub pixel respectively;
    the third sub pixel comprises a first part extending along the second direction, and an extending part extending along the first direction from the first portion;
    the first sub pixel, the second sub pixel and the third sub pixel are selected from a group comprising red sub pixel, green sub pixel and blue sub pixel;
    each of the pixel unit groups further comprises contact holes one-to-one corresponding to the sub pixels and pixel circuits, each of the sub pixels being connected to a corresponding pixel circuit through a corresponding contact hole;
    in the first pixel unit subgroup, the second contact hole and the third contact hole are respectively located on both sides of the first part of the third sub pixel; and the extending part of the third sub pixel is at least located on a side of the second contact hole; and
    in the second pixel unit subgroup, the fifth contact hole and the sixth contact hole are respectively located on both sides of the first part of the third sub pixel; and the extending part of the third sub pixel is at least located on a side of the sixth contact hole.

    [0013] Preferably, in the organic electroluminescent display device provided by the embodiment of the present invention, in the same pixel unit subgroup, the distance between centers of two adjacent sub pixels is constant.

    [0014] Preferably, in the organic electroluminescent display device provided by the embodiment of the present invention, the sub pixels with the same color have the same size.

    [0015] Preferably, in the organic electroluminescent display device provided by the embodiment of the present invention, the first direction is perpendicular to the second direction.

    [0016] Preferably, to improve the resolution, in the same pixel unit group, the component of the distance between centers of two adjacent sub pixels with the same color respectively located in the first pixel unit subgroup and the second pixel unit subgroup in the first direction is equal to or less than 3/4 of the component thereof in the second direction.

    [0017] Further, to ensure the resolution of the organic electroluminescent display device, and in order to facilitate the arrangement of contact holes connecting each sub pixel and the corresponding pixel circuit on the basal substrate, in the organic electroluminescent display device provided by the embodiment of the present invention, in the same pixel unit group:

    the component of the distance between centers of two adjacent third sub pixels respectively located in the first pixel unit subgroup and the second pixel unit subgroup in the first direction is less than 3/4 of the component thereof in the second direction;

    the component of the distance between centers of two adjacent first sub pixels respectively located in the first pixel unit subgroup and the second pixel unit subgroup in the first direction is equal to 3/4 of the component thereof in the second direction;

    the component of the distance between centers of two adjacent second sub pixels respectively located in the first pixel unit subgroup and the second pixel unit subgroup in the first direction is equal to 3/4 of the component thereof in the second direction.



    [0018] Particularly, in order to facilitate the arrangement of contact holes connecting each sub pixel and the corresponding pixel circuit on the basal substrate, in the organic electroluminescent display device provided by the embodiment of the present invention, each of the pixel unit groups further comprises contact holes one-to-one corresponding to the sub pixels and pixel circuits, each of the sub pixels being connected to a corresponding pixel circuit through a corresponding contact hole; wherein,
    in the first pixel unit subgroup, a first contact hole is located between the first sub pixel and the second sub pixel, a second contact hole and a third contact hole are respectively located on both sides of the third sub pixel in the first direction;
    in the second pixel unit subgroup, a fourth contact hole is located between the first sub pixel and the second sub pixel, a fifth contact hole and a sixth contact hole are respectively located on both sides of the third sub pixel in the first direction;
    the first contact hole, the fifth contact hole and the sixth contact hole are aligned in the first direction; the second contact hole, the third contact hole and the fourth contact hole are aligned in the first direction; the first contact hole and the second contact hole are aligned in the second direction; the fifth contact hole and the third contact hole are aligned in the second direction; the sixth contact hole and the fourth contact hole are aligned in the second direction. In such a manner, the contact holes on the basal substrate are arranged in a matrix, thereby reducing the difficulty of back board wiring in the organic electroluminescent display device.

    [0019] Preferably, in order to ensure the display effect of the organic electroluminescent display device, in the organic electroluminescent display device provided by the embodiment of the present invention, the third sub pixel is a green sub pixel.

    [0020] Preferably, in order to reduce the production quantity of the metal mask plate, in the organic electroluminescent display device provided by the embodiment of the present invention, the size of the blue sub pixel is larger than the size of the red sub pixel.

    [0021] Preferably, in order to ensure the lifetime of the organic electroluminescent display device, in the organic electroluminescent display device provided by the embodiment of the present invention, the size of the blue sub pixel is equal to the size of the red sub pixel.

    [0022] Preferably, in order to facilitate the implementation, in the organic electroluminescent display device provided by the embodiment of the present invention, the shape of each sub pixel is rectangle.

    [0023] Accordingly, an embodiment of the present invention provides a driving method for any one of the above mentioned organic electroluminescent display devices, wherein the driving method comprises: in the same pixel unit group, the first pixel unit subgroup and the second pixel unit subgroup share at least one sub pixel.

    [0024] Accordingly, an embodiment of the present invention provides a display device, wherein the display device comprises any one of the above mentioned organic electroluminescent display devices.

    [0025] According to the organic electroluminescent display device, the driving method thereof and the display device provided by the embodiments of the present disclosure, each of the pixel unit groups comprises a first pixel unit subgroup and a second pixel unit subgroup; the first pixel unit subgroup and the second pixel unit subgroup are arranged along a first direction adjacent to each other, and comprise sub pixels with three different colors respectively; wherein the first pixel unit subgroup comprises a sub pixel sequence in an order of a first sub pixel, a second sub pixel and a third sub pixel along a second direction; the second pixel unit subgroup comprises a sub pixel sequence in an order of the third sub pixel, the first sub pixel and the second sub pixel along the second direction; in the same pixel unit group, the component of the distance between centers of two adjacent first sub pixels respectively located in the first pixel unit subgroup and the second pixel unit subgroup in the second direction, the component of the distance between centers of two adjacent second sub pixels respectively located in the first pixel unit subgroup and the second pixel unit subgroup in the second direction, and the component of the distance between centers of two adjacent third sub pixels respectively located in the first pixel unit subgroup and the second pixel unit subgroup in the second direction, are all equal. In such a manner, the regular staggered arrangement of sub pixels with the same color on the basal substrate can be ensured. During the manufacture of a corresponding metal mask plate, the distance between adjacent openings corresponding to the sub pixels with the same color in the metal mask plate can be relatively large, improving the strength of the metal mask plate; this is beneficial for manufacturing small-sized sub pixels, thereby further improving the resolution of the organic electroluminescent display device.

    BRIEF DESCRIPTION OF THE DRAWINGS



    [0026] 

    Fig. 1 is a structural schematic diagram of a pixel arrangement in an existing organic electroluminescent display device;

    Fig. 2 shows a metal mask plate used for manufacturing an organic electroluminescent display device shown in Fig. 1;

    Fig. 3 shows another metal mask plate used for manufacturing an organic electroluminescent display device shown in Fig. 1;

    Fig. 4 is a first structural schematic diagram of an organic electroluminescent display device provided by an embodiment not forming part of the claimed invention;

    Fig. 5 is a first structural schematic diagram of a pixel unit group in the organic electroluminescent display device provided by an embodiment not forming part of the claimed invention;

    Fig. 6 shows a metal mask plate used for manufacturing an organic electroluminescent display device shown in Fig. 4;

    Fig. 7 is a second structural schematic diagram of another pixel unit group in the organic electroluminescent display device provided by an embodiment not forming part of the claimed invention;

    Fig. 8 is a second structural schematic diagram of an organic electroluminescent display device provided by an embodiment not forming part of the claimed invention;

    Fig. 9 is a third structural schematic diagram of an organic electroluminescent display device provided by an embodiment not forming part of the claimed invention;

    Fig. 10 is a fourth structural schematic diagram of an organic electroluminescent display device provided by an embodiment not forming part of the claimed invention;

    Fig. 11 is a third structural schematic diagram of another pixel unit group in the organic electroluminescent display device provided by an embodiment not forming part of the claimed invention;

    Fig. 12 is a fifth structural schematic diagram of an organic electroluminescent display device provided by an embodiment not forming part of the claimed invention;

    Fig. 13 is a fourth structural schematic diagram of another pixel unit group in the organic electroluminescent display device provided by an embodiment not forming part of the claimed invention;

    Fig. 14 is a fifth structural schematic diagram of another pixel unit group in the organic electroluminescent display device provided by an embodiment not forming part of the claimed invention;

    Fig. 15 is a sixth structural schematic diagram of another pixel unit group in the organic electroluminescent display device provided by an embodiment of the claimed invention;

    Fig. 16 is a seventh structural schematic diagram of another pixel unit group in the organic electroluminescent display device provided by an embodiment of the claimed invention.


    DETAILED DESCRIPTION OF THE INVENTION



    [0027] In the following, the implementations of the organic electroluminescent display device, the driving method thereof and the display device provided by the embodiments some of which are embodiments of the invention as claimed will be described clearly and completely in connection with the drawings.

    [0028] The shapes and thickness of the film layer in the drawings do not reflect the real scale of the organic electroluminescent display device, but to schematically illustrate the content of the disclosure, wherein the invention is as defined in the appended claims.

    [0029] An embodiment of the present disclosure provides an organic electroluminescent display device; as shown in Fig. 4, the organic electroluminescent display device comprises a basal substrate 10 and several pixel unit groups 11 arranged in a matrix on the basal substrate 10 (wherein a structural schematic diagram of a pixel unit group is shown in Fig. 5); each of the pixel unit groups 11 comprises a first pixel unit subgroup 111 and a second pixel unit subgroup 112; the first pixel unit subgroup 111 and the second pixel unit subgroup 112 are arranged along a first direction X adjacent to each other, and comprise sub pixels with three different colors respectively; wherein,
    the first pixel unit subgroup 111 comprises a sub pixel sequence in an order of a first sub pixel 01, a second sub pixel 02 and a third sub pixel 03 along a second direction Y;
    the second pixel unit subgroup 112 comprises a sub pixel sequence in an order of the third sub pixel 03, the first sub pixel 01 and the second sub pixel 02 along the second direction;
    in the same pixel unit group 11, the component y of the distance between centers of two adjacent first sub pixels 01 respectively located in the first pixel unit subgroup 111 and the second pixel unit subgroup 112 in the second direction Y, the component y of the distance between centers of two adjacent second sub pixels 02 respectively located in the first pixel unit subgroup 111 and the second pixel unit subgroup 112 in the second direction Y, and the component y of the distance between centers of two adjacent third sub pixels 03 respectively located in the first pixel unit subgroup 111 and the second pixel unit subgroup 112 in the second direction Y, are all equal.

    [0030] In the organic electroluminescent display device provided by the embodiment of the present disclosure, each of the pixel unit groups comprises a first pixel unit subgroup and a second pixel unit subgroup; the first pixel unit subgroup and the second pixel unit subgroup are arranged along a first direction adjacent to each other, and comprise sub pixels with three different colors respectively; wherein the first pixel unit subgroup comprises a sub pixel sequence in an order of a first sub pixel, a second sub pixel and a third sub pixel along a second direction; the second pixel unit subgroup comprises a sub pixel sequence in an order of the third sub pixel, the first sub pixel and the second sub pixel along the second direction; in the same pixel unit group, the component of the distance between centers of two adjacent first sub pixels respectively located in the first pixel unit subgroup and the second pixel unit subgroup in the second direction, the component of the distance between centers of two adjacent second sub pixels respectively located in the first pixel unit subgroup and the second pixel unit subgroup in the second direction, and the component of the distance between centers of two adjacent third sub pixels respectively located in the first pixel unit subgroup and the second pixel unit subgroup in the second direction, are all equal. In such a manner, the regular staggered arrangement of sub pixels with the same color on the basal substrate can be ensured. During the manufacture of a corresponding metal mask plate, as shown in Fig. 6 (which shows a schematic diagram of the openings in a metal mask plate corresponding to the sub pixels with the same color), the distance between adjacent openings 12 corresponding to the sub pixels with the same color in the metal mask plate can be relatively large, and the distance between adjacent openings 12 corresponding to the sub pixels with different colors in the metal mask plate can be relatively uniform, improving the strength of the metal mask plate; this is beneficial for manufacturing small-sized sub pixels, thereby further improving the resolution of the organic electroluminescent display device.

    [0031] Preferably, in the organic electroluminescent display device provided by the embodiment of the present disclosure, as shown in Fig. 5, in the same pixel unit subgroup, the distance between centers of two adjacent sub pixels is constant, i.e., the components z in the second direction Y are the same.

    [0032] Preferably, in the organic electroluminescent display device provided by the embodiment of the present disclosure, as shown in Fig. 5, the sub pixels with the same color have the same size. Since the sub pixels with the same color have the same size, the difficulty of manufacturing the metal mask plate can be further reduced.

    [0033] Preferably, in the organic electroluminescent display device provided by the embodiment of the present disclosure, the first direction is perpendicular to the second direction. In the embodiments of the present invention, the examples are all illustrated with the first direction being perpendicular to the second direction.

    [0034] Particularly, in an implementation, the row direction or the column direction of the organic electroluminescent display device can be selected as the first direction; the column direction or the row direction of the organic electroluminescent display device can be selected as the second direction.

    [0035] Preferably, in the organic electroluminescent display device provided by the embodiment of the present disclosure, as shown in Fig. 7, in the same pixel unit group, the component x of the distance between centers of two adjacent sub pixels with the same color respectively located in the first pixel unit subgroup 111 and the second pixel unit subgroup 112 in the first direction is equal to or less than 3/4 of the component y thereof in the second direction. By reducing the width of each pixel unit group in the first direction, the number of pixel unit groups on the display device can be increased, thereby improving the pixel resolution. Further, in the same pixel unit group, the first pixel unit subgroup and the second pixel unit subgroup share sub pixel(s) (e.g., any two adjacent sub pixels in the first pixel unit subgroup share a sub pixel in the second pixel unit subgroup with a different color from those of the two adjacent sub pixels; any two adjacent sub pixels in the second pixel unit subgroup share a sub pixel in the first pixel unit subgroup with a different color from those of the two adjacent sub pixels), thereby improving the virtual display resolution of the screen. For example, when the original number of pixels is N, N is an integer equal to or greater than 2, the number of pixels can be increased to 3N/2 when the method of sharing sub pixels in the same pixel unit group is applied in the organic electroluminescent display device of the present disclosure.

    [0036] Preferably, in the organic electroluminescent display device provided by the embodiment of the present disclosure, the first sub pixel, the second sub pixel and the third sub pixel are selected from a group comprising red (R) sub pixel, green (G) sub pixel and blue (B) sub pixel. In the embodiments of the present invention, the first sub pixel can be one of a red (R) sub pixel, green (G) sub pixel and blue (B) sub pixel, the second sub pixel can be one of a red (R) sub pixel, green (G) sub pixel and blue (B) sub pixel, the first sub pixel can be one of a red (R) sub pixel, green (G) sub pixel and blue (B) sub pixel; moreover, the colors of the first sub pixel, the second sub pixel and the third sub pixel are all different.

    [0037] Further, in order to reduce the production quantity of the metal mask plate, in the organic electroluminescent display device provided by the embodiment of the present disclosure, in the same pixel unit group, all the sub pixels have the same size. In such a manner, in the organic electroluminescent display device, the arrangement of the sub pixels with the same color presents the same regularity; moreover, the size of the pixels are the same, i.e., the regularities for the arrangements of the three types of the sub pixels with different colors are the same. Therefore, the same one metal mask plate can be used during the manufacture of the sub pixels with different colors, thereby reducing the production quantity of the metal mask plate.

    [0038] Preferably, in order to prolong the lifetime of the organic electroluminescent display device, in the organic electroluminescent display device provided by the embodiment of the present disclosure, as shown in Fig. 8, in the same pixel unit group, the size of the red (R) sub pixel is same with the size of the green (G) sub pixel; the size of the blue (B) sub pixel is larger than the size of the red (R) sub pixel. Since the lifetime of the blue luminescent material for manufacturing the blue (B) sub pixel is generally the lowest, the lifetime of the organic electroluminescent display device mainly depends on that of the blue (B) sub pixel. To achieve the same display brightness, the brightness of the blue (B) sub pixel can be reduced when size of the blue (B) sub pixel is increased. By decreasing the current density flowing through the blue (B) sub pixels, the lifetime of the blue sub pixels can be prolonged, thereby prolonging the lifetime of the organic electroluminescent display device.

    [0039] Particularly, to enable the light emitting of the sub pixels in the organic electroluminescent display device, pixel circuits are required for driving the sub pixels to emit light. The pixel circuit is generally located below the light emitting layer, and the pixel circuit is electrically connected with the anode of the corresponding sub pixel through a contact hole on a planarization layer over the pixel circuit.

    [0040] Therefore, preferably, in the organic electroluminescent display device provided by the embodiment of the present disclosure, as shown in Fig. 9 and Fig. 10, the size of the third sub pixel 03 is smaller than the size of the first sub pixel 01 and the size of the second sub pixel 02 respectively. Since the third sub pixel 03 is the smallest, contact holes can be arranged on both sides of the third sub pixel 03.

    [0041] Further, in order to facilitate the manufacture of contact holes connecting each sub pixel and the corresponding pixel circuit on the basal substrate, in the organic electroluminescent display device provided by the embodiment of the present disclosure, as shown in Fig. 11, in the same pixel unit group 11:

    the component x of the distance between centers of two adjacent third sub pixels 03 respectively located in the first pixel unit subgroup 111 and the second pixel unit subgroup 112 in the first direction X is less than 3/4 of the component x thereof in the second direction;

    the component of the distance between centers of two adjacent first sub pixels 01 respectively located in the first pixel unit subgroup 111 and the second pixel unit subgroup 112 in the first direction X is equal to 3/4 of the component y thereof in the second direction;

    the component of the distance between centers of two adjacent second sub pixels 02 respectively located in the first pixel unit subgroup 111 and the second pixel unit subgroup 112 in the first direction X is equal to 3/4 of the component y thereof in the second direction.



    [0042] Particularly, in the organic electroluminescent display device provided by the embodiment of the present disclosure, as shown in Fig. 12, each of the pixel unit groups 11 further comprises contact holes one-to-one corresponding to the sub pixels and pixel circuits (not shown in Fig. 12), each of the sub pixels being connected to a corresponding pixel circuit through a corresponding contact hole; wherein,
    in the first pixel unit subgroup 111, a first contact hole V1 is located between the first sub pixel 01 and the second sub pixel 02, a second contact hole V2 and a third contact hole V3 are respectively located on both sides of the third sub pixel 03 in the first direction X;
    in the second pixel unit subgroup 112, a fourth contact hole V4 is located between the first sub pixel 01 and the second sub pixel 02, a fifth contact hole V5 and a sixth contact hole V6 are respectively located on both sides of the third sub pixel 03 in the first direction X;
    the first contact hole V1, the fifth contact hole V5 and the sixth contact hole V6 are aligned in the first direction X; the second contact hole V2, the third contact hole V3 and the fourth contact hole V4 are aligned in the first direction X; the first contact hole V1 and the second contact hole V2 are aligned in the second direction Y; the fifth contact hole V5 and the third contact hole V3 are aligned in the second direction Y; the sixth contact hole V6 and the fourth contact hole V4 are aligned in the second direction Y. In such a manner, the contact holes on the basal substrate are arranged in a matrix, thereby reducing the difficulty of back board wiring in the organic electroluminescent display device.

    [0043] It should be noted that, in the organic electroluminescent display device provided by the embodiment of the present disclosure, in each pixel unit group, the first contact hole corresponds to one of two sub pixels adjacent to the first contact hole in the first pixel unit subgroup; the other one of these two sub pixels adjacent to the first contact hole corresponds to the fifth contact hole; the second contact hole corresponds to the third sub pixel in the first pixel unit subgroup; the fourth contact hole corresponds to one of two sub pixels adjacent to the fourth contact hole in the second pixel unit subgroup; the other one of these two sub pixels adjacent to the fourth contact hole corresponds to the third contact hole; the sixth contact hole corresponds to the third sub pixel in the second pixel unit subgroup.

    [0044] Further, to reduce the difficulty in the manufacture, in the organic electroluminescent display device provided by the embodiment of the present disclosure, the sizes of the contact holes are the same.

    [0045] Preferably, in the organic electroluminescent display device provided by the embodiment of the present disclosure, as shown in Fig. 13, according to the lifetime and display effect of the sub pixels with different colors, the third sub pixel 03 is a green (G) sub pixel. In this way, the size of the green sub pixel is smaller than the size of the red sub pixel and the size of the blue sub pixel respectively.

    [0046] Further, in order to ensure a good aperture ratio for the organic electroluminescent display device, in the organic electroluminescent display device provided by the embodiment of the present invention, as shown in Fig. 15 and Fig. 16, the third sub pixel 03 comprises a first portion 031 extending along the second direction Y, and an extending part 032 extending along the first direction X from the first portion 031; wherein the wording "along a direction" can also be construed as "substantially parallel to a direction";
    in the first pixel unit subgroup 111, the second contact hole V2 and the third contact hole V3 are respectively located on both sides of the first part 031 of the third sub pixel 03; and the extending part 032 of the third sub pixel 03 is at least located on a side of the second contact hole V2;
    in the second pixel unit subgroup 112, the fifth contact hole V5 and the sixth contact hole V6 are respectively located on both sides of the first part 031 of the third sub pixel 03; and the extending part 032 of the third sub pixel 03 is at least located on a side of the sixth contact hole V6. In this way, the light emitting area of the third sub pixel can be increased without affecting the arrangement of the contact holes, thereby increasing the aperture ratio for the organic electroluminescent display device.

    [0047] Preferably, in order to reduce the production quantity of the metal mask plate, in the organic electroluminescent display device provided by the embodiment of the present disclosure, as shown in Fig. 13, the size of the blue (B) sub pixel is larger than the size of the red (R) sub pixel.

    [0048] Or, preferably, in order to ensure the lifetime of the organic electroluminescent display device, in the organic electroluminescent display device provided by the embodiment of the present disclosure, as shown in Fig. 14, the size of the blue (B) sub pixel is equal to the size of the red (R) sub pixel.

    [0049] Preferably, in the organic electroluminescent display device provided by the embodiment of the present disclosure, the shape of each sub pixel is rectangle, which is not limited herein.

    [0050] Based on the same inventive concept, an embodiment of the present disclosure provides a driving method for any one of the above mentioned organic electroluminescent display devices, wherein the driving method of the claimed invention provides a driving method for the organic electroluminescent display device according to the appended claims. The driving method comprises: in the same pixel unit group, the first pixel unit subgroup and the second pixel unit subgroup share at least one sub pixel. For example, the first sub pixel in the first pixel unit subgroup and the second sub pixel in the second pixel unit subgroup share the third sub pixel in the second pixel unit subgroup; or, the second sub pixel and the third sub pixel in the first pixel unit subgroup share the first sub pixel in the second pixel unit subgroup; or, the first sub pixel and the second sub pixel in the second pixel unit subgroup share the third sub pixel in the first pixel unit subgroup; or, the first sub pixel and the third sub pixel in the second pixel unit subgroup share the second sub pixel in the first pixel unit subgroup. In such a manner, by applying the method of sharing sub pixels for the same pixel unit group, for example, when the original number of pixels is N, N is an integer equal to or greater than 2, the number of pixels can be increased to 3N/2, thereby improving the virtual display resolution of the screen.

    [0051] By applying the method of sharing sub pixels for the same pixel unit group, the driving method provided by the embodiment of the present invention can improve the virtual display resolution of the screen, with the number of the original pixels being increased to 3/2 times.

    [0052] Based on the same inventive concept, an embodiment of the present invention provides a display device, wherein the display device comprises any one of the above mentioned organic electroluminescent display devices, wherein a display device of the claimed invention comprises the organic electroluminescent display device according to the appended claims.

    [0053] The display device can be any product or component with display function, such as mobile phone, tablet computer, TV, display, notebook computer, digital photo frame, navigator and so on. Other essential parts for the display device should be construed as be comprised in the display device, which are not repeated herein, and can not be used to limit the present invention. The implementation of the display device can refer to the embodiments of the above mentioned organic electroluminescent display devices, which will not be repeated herein.

    [0054] According to the organic electroluminescent display device, the driving method thereof and the display device provided by the embodiments of the present disclosure, each of the pixel unit groups comprises a first pixel unit subgroup and a second pixel unit subgroup; the first pixel unit subgroup and the second pixel unit subgroup are arranged along a first direction adjacent to each other, and comprise sub pixels with three different colors respectively; wherein the first pixel unit subgroup comprises a sub pixel sequence in an order of a first sub pixel, a second sub pixel and a third sub pixel along a second direction; the second pixel unit subgroup comprises a sub pixel sequence in an order of the third sub pixel, the first sub pixel and the second sub pixel along the second direction; in the same pixel unit group, the component of the distance between centers of two adjacent first sub pixels respectively located in the first pixel unit subgroup and the second pixel unit subgroup in the second direction, the component of the distance between centers of two adjacent second sub pixels respectively located in the first pixel unit subgroup and the second pixel unit subgroup in the second direction, and the component of the distance between centers of two adjacent third sub pixels respectively located in the first pixel unit subgroup and the second pixel unit subgroup in the second direction, are all equal. In such a manner, the regular staggered arrangement of sub pixels with the same color on the basal substrate can be ensured. During the manufacture of a corresponding metal mask plate, the distance between adjacent openings corresponding to the sub pixels with the same color in the metal mask plate can be relatively large, improving the strength of the metal mask plate; this is beneficial for manufacturing small-sized sub pixels, thereby further improving the resolution of the organic electroluminescent display device.

    [0055] The embodiments of the present disclosure provide an organic electroluminescent display device, a driving method thereof and a display device. Each of the pixel unit groups comprises a first pixel unit subgroup and a second pixel unit subgroup; the first pixel unit subgroup and the second pixel unit subgroup are arranged along a first direction adjacent to each other, and comprise sub pixels with three different colors respectively; wherein the first pixel unit subgroup comprises a sub pixel sequence in an order of a first sub pixel, a second sub pixel and a third sub pixel along a second direction; the second pixel unit subgroup comprises a sub pixel sequence in an order of the third sub pixel, the first sub pixel and the second sub pixel along the second direction; in the same pixel unit group, the component of the distance between centers of two adjacent first sub pixels respectively located in the first pixel unit subgroup and the second pixel unit subgroup in the second direction, the component of the distance between centers of two adjacent second sub pixels respectively located in the first pixel unit subgroup and the second pixel unit subgroup in the second direction, and the component of the distance between centers of two adjacent third sub pixels respectively located in the first pixel unit subgroup and the second pixel unit subgroup in the second direction, are all equal. In such a manner, the regular staggered arrangement of sub pixels with the same color on the basal substrate can be ensured. During the manufacture of a corresponding metal mask plate, the distance between adjacent openings corresponding to the sub pixels with the same color in the metal mask plate can be relatively large, improving the strength of the metal mask plate; this is beneficial for manufacturing small-sized sub pixels, thereby further improving the resolution of the organic electroluminescent display device.

    [0056] Apparently, the person skilled in the art may make various alterations and variations to the invention without departing from the scope of the invention as defined in the appended claims.


    Claims

    1. An organic electroluminescent display device, wherein the organic electroluminescent display device comprises a basal substrate (10) and several pixel unit groups (11) arranged in a matrix on the basal substrate (10); each of the pixel unit groups (11) comprises a first pixel unit subgroup (111) and a second pixel unit subgroup (112); the first pixel unit subgroup (111) and the second pixel unit subgroup (112) are arranged along a first direction (X) adjacent to each other, and comprise sub pixels (01, 02, 03) with three different colors respectively; wherein the first pixel unit subgroup (111) comprises a sub pixel sequence in an order of a first sub pixel (01), a second sub pixel (02) and a third sub pixel (03) along a second direction (Y);
    the second pixel unit subgroup (112) comprises a sub pixel sequence in an order of the third sub pixel (03), the first sub pixel (01) and the second sub pixel (02) along the second direction (Y);
    in the same pixel unit group (11), the component of the distance between centers of two adjacent first sub pixels (01) respectively located in the first pixel unit subgroup (111) and the second pixel unit subgroup (112) in the second direction (Y), the component of the distance between centers of two adjacent second sub pixels (02) respectively located in the first pixel unit subgroup (111) and the second pixel unit subgroup (112) in the second direction (Y), and the component of the distance between centers of two adjacent third sub pixels (03) respectively located in the first pixel unit subgroup (111) and the second pixel unit subgroup (112) in the second direction (Y), are all equal;
    the size of the third sub pixel (03) is smaller than the size of the first sub pixel (01) and the size of the second sub pixel (02) respectively;
    the third sub pixel (03) comprises a first part (031) extending along the second direction (Y), and an extending part (032) extending along the first direction (X) from the first portion (031);
    the first sub pixel (01), the second sub pixel (02) and the third sub pixel (03) are selected from a group comprising red sub pixel, green sub pixel and blue sub pixel; each of the pixel unit groups (11) further comprises contact holes (V1, V2, V3, V4, V5, V6) one-to-one corresponding to the sub pixels (01, 02, 03) and pixel circuits, each of the sub pixels being connected to a corresponding pixel circuit through a corresponding contact hole;
    in the first pixel unit subgroup (111), the second contact hole (V2) and the third contact hole (V3) are respectively located on both sides of the first part (031) of the third sub pixel (03); and the extending part (032) of the third sub pixel (03) is at least located on a side of the second contact hole (V2); and
    in the second pixel unit subgroup (112), the fifth contact hole (V5) and the sixth contact hole (V6) are respectively located on both sides of the first part (031) of the third sub pixel (03); and the extending part (032) of the third sub pixel (03) is at least located on a side of the sixth contact hole (V6).
     
    2. The organic electroluminescent display device according to claim 1, wherein in the same pixel unit subgroup (111, 112), the distance between centers of two adjacent sub pixels (01, 02, 03) is constant.
     
    3. The organic electroluminescent display device according to claim 1, wherein the sub pixels (01, 02, 03) with the same color have the same size.
     
    4. The organic electroluminescent display device according to claim 1, wherein the first direction (X) is perpendicular to the second direction (Y).
     
    5. The organic electroluminescent display device according to claim 1, wherein in the same pixel unit group (11), the component of the distance between centers of two adjacent sub pixels (01, 02, 03) with the same color respectively located in the first pixel unit subgroup (111) and the second pixel unit subgroup (112) in the first direction (X) is equal to or less than 3/4 of the component thereof in the second direction (Y).
     
    6. The organic electroluminescent display device according to claim 1, wherein in the same pixel unit group (11):

    the component of the distance between centers of two adjacent third sub pixels (03) respectively located in the first pixel unit subgroup (111) and the second pixel unit subgroup (112) in the first direction (X) is less than 3/4 of the component thereof in the second direction (Y);

    the component of the distance between centers of two adjacent first sub pixels (01) respectively located in the first pixel unit subgroup (111) and the second pixel unit subgroup (112) in the first direction (X) is equal to 3/4 of the component thereof in the second direction (Y);

    the component of the distance between centers of two adjacent second sub pixels (02) respectively located in the first pixel unit subgroup (111) and the second pixel unit subgroup (112) in the first direction (X) is equal to 3/4 of the component thereof in the second direction (Y).


     
    7. The organic electroluminescent display device according to claim 6, wherein in the first pixel unit subgroup (111), a first contact hole (V1) is located between the first sub pixel (01) and the second sub pixel (02), a second contact hole (V2) and a third contact hole (V3) are respectively located on both sides of the third sub pixel (03) in the first direction (X);
    in the second pixel unit subgroup (112), a fourth contact hole (V4) is located between the first sub pixel (01) and the second sub pixel (02), the first contact hole (V1), the fifth contact hole (V5) and the sixth contact hole (V6) are aligned in the first direction (X); the second contact hole (V2), the third contact hole (V3) and the fourth contact hole (V4) are aligned in the first direction (X); the first contact hole (V1) and the second contact hole (V2) are aligned in the second direction (Y); the fifth contact hole (V5) and the third contact hole (V3) are aligned in the second direction (Y); the sixth contact hole (V6) and the fourth contact hole (V4) are aligned in the second direction (Y).
     
    8. The organic electroluminescent display device according to claim 7, wherein the third sub pixel (03) is a green sub pixel; preferably, the size of the blue sub pixel is larger than or equal to the size of the red sub pixel.
     
    9. A driving method for the organic electroluminescent display device according to any one of claims 1-8, wherein the driving method comprises: in the same pixel unit group (11), the first pixel unit subgroup (111) and the second pixel unit subgroup (112) share at least one sub pixel (01, 02, 03).
     
    10. A display device, wherein the display device comprises the organic electroluminescent display device according to any one of claims 1-8.
     


    Ansprüche

    1. Organische Elektrolumineszenzanzeigevorrichtung, wobei die organische Elektrolumineszenzanzeigevorrichtung ein Basalsubstrat (10) und mehrere Pixeleinheitsgruppen (11) umfasst, die in einer Matrix auf dem Basalsubstrat (10) angeordnet sind; wobei jede der Pixeleinheitsgruppen (11) eine erste Pixeleinheitsteilgruppe (111) und eine zweite Pixeleinheitsteilgruppe (112) umfasst; wobei die erste Pixeleinheitsteilgruppe (111) und die zweite Pixeleinheitsteilgruppe (112) entlang einer ersten Richtung (X) benachbart zueinander angeordnet sind und Teilpixel (01, 02, 03) mit jeweils drei unterschiedlichen Farben umfassen; wobei die erste Pixeleinheitsteilgruppe (111) eine Teilpixelsequenz in einer Reihenfolge eines ersten Teilpixels (01), eines zweiten Teilpixels (02) und eines dritten Teilpixels (03) entlang einer zweiten Richtung (Y) umfasst;
    die zweite Pixeleinheitsteilgruppe (112) eine Teilpixelsequenz in einer Reihenfolge des dritten Teilpixels (03), des ersten Teilpixels (01) und des zweiten Teilpixels (02) entlang der zweiten Richtung (Y) umfasst;
    in derselben Pixeleinheitsgruppe (11) die Komponente des Abstands zwischen Mitten von zwei benachbarten ersten Teilpixeln (01), die sich jeweils in der ersten Pixeleinheitsteilgruppe (111) und der zweiten Pixeleinheitsteilgruppe (112) in der zweiten Richtung (Y) befinden, die Komponente des Abstands zwischen Mitten von zwei benachbarten zweiten Teilpixeln (02), die sich jeweils in der ersten Pixeleinheitsteilgruppe (111) und der zweiten Pixeleinheitsteilgruppe (112) in der zweiten Richtung (Y) befinden, und die Komponente des Abstands zwischen Mitten von zwei benachbarten dritten Teilpixeln (03), die sich jeweils in der ersten Pixeleinheitsteilgruppe (111) und der zweiten Pixeleinheitsteilgruppe (112) in der zweiten Richtung (Y) befinden, alle gleich sind;
    die Größe des dritten Teilpixels (03) kleiner als jeweils die Größe des ersten Teilpixels (01) und die Größe des zweiten Teilpixels (02) ist;
    das dritte Teilpixel (03) einen ersten Teil (031), der sich entlang der zweiten Richtung (Y) erstreckt, und einen sich erstreckenden Teil (032) umfasst, der sich entlang der ersten Richtung (X) von dem ersten Abschnitt (031) erstreckt;
    das erste Teilpixel (01), das zweite Teilpixel (02) und das dritte Teilpixel (03) aus einer Gruppe ausgewählt sind, die rote Teilpixel, grüne Teilpixel und blaue Teilpixel umfasst;
    jede der Pixeleinheitsgruppen (11) ferner Kontaktlöcher (V1, V2, V3, V4, V5, V6) umfasst, die eins zu eins den Teilpixeln (01, 02, 03) und Pixelschaltungen entsprechen, wobei jedes der Teilpixel durch ein entsprechendes Kontaktloch mit einer entsprechenden Pixelschaltung verbunden ist;
    sich in der ersten Pixeleinheitsteilgruppe (111) das zweite Kontaktloch (V2) und das dritte Kontaktloch (V3) jeweils auf beiden Seiten des ersten Teils (031) des dritten Teilpixels (03) befinden; und sich der sich erstreckende Teil (032) des dritten Teilpixels (03) zumindest auf einer Seite des zweiten Kontaktlochs (V2) befindet; und
    sich in der zweiten Pixeleinheitsteilgruppe (112) das fünfte Kontaktloch (V5) und das sechste Kontaktloch (V6) jeweils auf beiden Seiten des ersten Teils (031) des dritten Teilpixels (03) befinden; und sich der sich erstreckende Teil (032) des dritten Teilpixels (03) zumindest auf einer Seite des sechsten Kontaktlochs (V6) befindet.
     
    2. Organische Elektrolumineszenzanzeigevorrichtung nach Anspruch 1, wobei in derselben Pixeleinheitsteilgruppe (111, 112) der Abstand zwischen Mitten von zwei benachbarten Teilpixeln (01, 02, 03) konstant ist.
     
    3. Organische Elektrolumineszenzanzeigevorrichtung nach Anspruch 1, wobei die Teilpixel (01, 02, 03) mit der gleichen Farbe die gleiche Größe aufweisen.
     
    4. Organische Elektrolumineszenzanzeigevorrichtung nach Anspruch 1, wobei die erste Richtung (X) senkrecht zu der zweiten Richtung (Y) ist.
     
    5. Organische Elektrolumineszenzanzeigevorrichtung nach Anspruch 1, wobei in derselben Pixeleinheitsgruppe (11) die Komponente des Abstands zwischen Mitten von zwei benachbarten Teilpixeln (01, 02, 03) mit der gleichen Farbe, die sich jeweils in der ersten Pixeleinheitsteilgruppe (111) und der zweiten Pixeleinheitsteilgruppe (112) befindet, in der ersten Richtung (X) gleich oder weniger als 3/4 der Komponente davon in der zweiten Richtung (Y) ist.
     
    6. Organische Elektrolumineszenzanzeigevorrichtung nach Anspruch 1, wobei in derselben Pixeleinheitsgruppe (11):

    die Komponente des Abstands zwischen Mitten von zwei benachbarten dritten Teilpixeln (03), die sich jeweils in der ersten Pixeleinheitsteilgruppe (111) und der zweiten Pixeleinheitsteilgruppe (112) befinden, in der ersten Richtung (X) weniger als 3/4 der Komponente davon in der zweiten Richtung (Y) ist;

    die Komponente des Abstands zwischen Mitten von zwei benachbarten ersten Teilpixeln (01), die sich jeweils in der ersten Pixeleinheitsteilgruppe (111) und der zweiten Pixeleinheitsteilgruppe (112) befinden, in der ersten Richtung (X) gleich 3/4 der Komponente davon in der zweiten Richtung (Y) ist;

    die Komponente des Abstands zwischen Mitten von zwei benachbarten zweiten Teilpixeln (02), die sich jeweils in der ersten Pixeleinheitsteilgruppe (111) und der zweiten Pixeleinheitsteilgruppe (112) befinden, in der ersten Richtung (X) gleich 3/4 der Komponente davon in der zweiten Richtung (Y) ist.


     
    7. Organische Elektrolumineszenzanzeigevorrichtung nach Anspruch 6, wobei
    sich in der ersten Pixeleinheitsteilgruppe (111) ein erstes Kontaktloch (V1) zwischen dem ersten Teilpixel (01) und dem zweiten Teilpixel (02) befindet, sich ein zweites Kontaktloch (V2) und ein drittes Kontaktloch (V3) jeweils auf beiden Seiten des dritten Teilpixels (03) in der ersten Richtung (X) befinden; sich in der zweiten Pixeleinheitsteilgruppe (112) ein viertes Kontaktloch (V4) zwischen dem ersten Teilpixel (01) und dem zweiten Teilpixel (02) befindet,
    das erste Kontaktloch (V1), das fünfte Kontaktloch (V5) und das sechste Kontaktloch (V6) in der ersten Richtung (X) ausgerichtet sind; das zweite Kontaktloch (V2), das dritte Kontaktloch (V3) und das vierte Kontaktloch (V4) in der ersten Richtung (X) ausgerichtet sind; das erste Kontaktloch (V1) und das zweite Kontaktloch (V2) in der zweiten Richtung (Y) ausgerichtet sind; das fünfte Kontaktloch (V5) und das dritte Kontaktloch (V3) in der zweiten Richtung (Y) ausgerichtet sind; das sechste Kontaktloch (V6) und das vierte Kontaktloch (V4) in der zweiten Richtung (Y) ausgerichtet sind.
     
    8. Organische Elektrolumineszenzanzeigevorrichtung nach Anspruch 7, wobei das dritte Teilpixel (03) ein grünes Teilpixel ist; wobei bevorzugt die Größe des blauen Teilpixels größer als die oder gleich der Größe des roten Teilpixels ist.
     
    9. Antriebsverfahren für die organische Elektrolumineszenzanzeigevorrichtung nach einem der Ansprüche 1-8, wobei das Antriebsverfahren Folgendes umfasst: in derselben Pixeleinheitsgruppe (11) teilen die erste Pixeleinheitsteilgruppe (111) und die zweite Pixeleinheitsteilgruppe (112) zumindest ein Teilpixel (01, 02, 03) .
     
    10. Anzeigevorrichtung, wobei die Anzeigevorrichtung die organische Elektrolumineszenzanzeigevorrichtung nach einem der Ansprüche 1-8 umfasst.
     


    Revendications

    1. Dispositif d'affichage électroluminescent organique, dans lequel le dispositif d'affichage électroluminescent organique comprend un substrat basal (10) et plusieurs groupes d'unités de pixels (11) agencés dans une matrice sur le substrat basal (10) ; chacun des groupes d'unités de pixels (11) comprend un premier sous-groupe d'unités de pixels (111) et un second sous-groupe d'unités de pixels (112) ; le premier sous-groupe d'unités de pixels (111) et le second sous-groupe d'unités de pixels (112) sont agencés le long d'une première direction (X) adjacents l'un à l'autre, et comprennent des sous-pixels (01, 02, 03) avec trois couleurs différentes respectivement ; dans lequel
    le premier sous-groupe d'unités de pixels (111) comprend une séquence de sous-pixels dans un ordre d'un premier sous-pixel (01), d'un deuxième sous-pixel (02) et d'un troisième sous-pixel (03) le long d'une seconde direction (Y) ;
    le second sous-groupe d'unités de pixels (112) comprend une séquence de sous-pixels dans un ordre du troisième sous-pixel (03), du premier sous-pixel (01) et du deuxième sous-pixel (02) le long de la seconde direction (Y) ;
    dans le même groupe d'unités de pixels (11), la composante de la distance entre les centres de deux premiers sous-pixels adjacents (01) situés respectivement dans le premier sous-groupe d'unités de pixels (111) et le second sous-groupe d'unités de pixels (112) dans la seconde direction (Y), la composante de la distance entre les centres de deux deuxièmes sous-pixels adjacents (02) situés respectivement dans le premier sous-groupe d'unités de pixels (111) et le deuxième sous-groupe d'unités de pixels (112) dans la seconde direction (Y), et la composante de la distance entre les centres de deux troisièmes sous-pixels adjacents (03) situés respectivement dans le premier sous-groupe d'unités de pixels (111) et le second sous-groupe d'unités de pixels (112) dans la seconde direction (Y), sont toutes égales ; la taille du troisième sous-pixel (03) est plus petite que la taille du premier sous-pixel (01) et la taille du deuxième sous-pixel (02) respectivement ;
    le troisième sous-pixel (03) comprend une première partie (031) s'étendant le long de la seconde direction (Y), et une partie d'extension (032) s'étendant le long de la première direction (X) à partir de la première partie (031) ;
    le premier sous-pixel (01), le deuxième sous-pixel (02) et le troisième sous-pixel (03) sont choisis dans un groupe comprenant un sous-pixel rouge, un sous-pixel vert et un sous-pixel bleu ; chacun des groupes d'unités de pixels (11) comprend en outre des trous de contact (V1, V2, V3, V4, V5, V6) correspondant de manière bi-univoque aux sous-pixels (01, 02, 03) et des circuits de pixels, chacun des sous-pixels étant relié à un circuit de pixels correspondant à travers un trou de contact correspondant ;
    dans le premier sous-groupe d'unités de pixels (111), le deuxième trou de contact (V2) et le troisième trou de contact (V3) sont respectivement situés des deux côtés de la première partie (031) du troisième sous-pixel (03) ; et la partie d'extension (032) du troisième sous-pixel (03) est au moins située sur un côté du deuxième trou de contact (V2) ; et
    dans le second sous-groupe d'unités de pixels (112), le cinquième trou de contact (V5) et le sixième trou de contact (V6) sont respectivement situés des deux côtés de la première partie (031) du troisième sous-pixel (03) ; et la partie d'extension (032) du troisième sous-pixel (03) est au moins située d'un côté du sixième trou de contact (V6).
     
    2. Dispositif d'affichage électroluminescent organique selon la revendication 1, dans lequel dans le même sous-groupe d'unités de pixels (111, 112), la distance entre les centres de deux sous-pixels adjacents (01, 02, 03) est constante.
     
    3. Dispositif d'affichage électroluminescent organique selon la revendication 1, dans lequel les sous-pixels (01, 02, 03) de la même couleur ont la même taille.
     
    4. Dispositif d'affichage électroluminescent organique selon la revendication 1, dans lequel la première direction (X) est perpendiculaire à la seconde direction (Y).
     
    5. Dispositif d'affichage électroluminescent organique selon la revendication 1, dans lequel dans le même sous-groupe d'unités de pixels (11), la composante de la distance entre les centres de deux sous-pixels adjacents (01, 02, 03) de la même couleur respectivement situés dans le premier sous-groupe d'unités de pixels (111) et le second sous-groupe d'unités de pixels (112) dans la première direction (X) est inférieure ou égale à 3/4 de la composante de celle-ci dans la seconde direction (Y).
     
    6. Dispositif d'affichage électroluminescent organique selon la revendication 1, dans lequel dans le même sous-groupe d'unités de pixels (11) :

    la composante de la distance entre les centres de deux troisièmes sous-pixels adjacents (03) respectivement situés dans le premier sous-groupe d'unités de pixels (111) et le second sous-groupe d'unités de pixels (112) dans la première direction (X) est inférieure à 3/4 de la composante de celle-ci dans la seconde direction (Y) ;

    la composante de la distance entre les centres de deux premiers sous-pixels adjacents (01) respectivement situés dans le premier sous-groupe d'unités de pixels (111) et le second sous-groupe d'unités de pixels (112) dans la première direction (X) est égale à 3/4 de la composante de celle-ci dans la seconde direction (Y) ;

    la composante de la distance entre les centres de deux deuxièmes sous-pixels adjacents (02) respectivement situés dans le premier sous-groupe d'unités de pixels (111) et le second sous-groupe d'unités de pixels (112) dans la première direction (X) est égale à 3/4 de la composante de celle-ci dans la seconde direction (Y).


     
    7. Dispositif d'affichage électroluminescent organique selon la revendication 6, dans lequel
    dans le premier sous-groupe d'unités de pixels (111), un premier trou de contact (V1) est situé entre le premier sous-pixel (01) et le deuxième sous-pixel (02), un deuxième trou de contact (V2) et un troisième trou de contact (V3) sont respectivement situés des deux côtés du troisième sous-pixel (03) dans la première direction (X) ;
    dans le second sous-groupe d'unités de pixels (112), un quatrième trou de contact (V4) est situé entre le premier sous-pixel (01) et le deuxième sous-pixel (02),
    le premier trou de contact (V1), le cinquième trou de contact (V5) et le sixième trou de contact (V6) sont alignés dans la première direction (X) ; le deuxième trou de contact (V2), le troisième trou de contact (V3) et le quatrième trou de contact (V4) sont alignés dans la première direction (X) ; le premier trou de contact (V1) et le deuxième trou de contact (V2) sont alignés dans la seconde direction (Y) ; le cinquième trou de contact (V5) et le troisième trou de contact (V3) sont alignés dans la seconde direction (Y) ; le sixième trou de contact (V6) et le quatrième trou de contact (V4) sont alignés dans la seconde direction (Y).
     
    8. Dispositif d'affichage électroluminescent organique selon la revendication 7, dans lequel le troisième sous-pixel (03) est un sous-pixel vert ; de préférence, la taille du sous-pixel bleu est supérieure ou égale à la taille du sous-pixel rouge.
     
    9. Procédé de commande du dispositif d'affichage électroluminescent organique selon l'une quelconque des revendications 1 à 8, dans lequel le procédé de commande comprend : dans le même groupe d'unités de pixels (11), le premier sous-groupe d'unités de pixels (111) et le second sous-groupe d'unités de pixels (112) partagent au moins un sous-pixel (01, 02, 03).
     
    10. Dispositif d'affichage, dans lequel le dispositif d'affichage comprend le dispositif d'affichage électroluminescent organique selon l'une quelconque des revendications 1 à 8.
     




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    Cited references

    REFERENCES CITED IN THE DESCRIPTION



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    Patent documents cited in the description