(19)
(11)EP 3 267 241 B1

(12)EUROPEAN PATENT SPECIFICATION

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

(21)Application number: 15883811.0

(22)Date of filing:  18.09.2015
(51)Int. Cl.: 
G02F 1/13  (2006.01)
H04N 13/337  (2018.01)
(86)International application number:
PCT/CN2015/089973
(87)International publication number:
WO 2016/138761 (09.09.2016 Gazette  2016/36)

(54)

DISPLAY DEVICE AND DISPLAY SYSTEM

ANZEIGEVORRICHTUNG UND ANZEIGESYSTEM

DISPOSITIF D'AFFICHAGE ET SYSTÈME D'AFFICHAGE


(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: 05.03.2015 CN 201510098494

(43)Date of publication of application:
10.01.2018 Bulletin 2018/02

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

(72)Inventor:
  • LI, Wenbo
    Beijing 100176 (CN)

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


(56)References cited: : 
WO-A1-2014/173049
CN-A- 102 651 819
CN-A- 103 713 422
JP-A- 2001 016 429
KR-A- 20140 050 897
US-A1- 2013 169 766
CN-A- 102 360 136
CN-A- 103 235 441
CN-A- 104 614 885
JP-A- 2008 310 271
US-A1- 2010 079 676
  
      
    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

    TECHNICAL FIELD



    [0001] The present application relates to the technical field of display, and particularly to a display device and display system.

    BACKGROUND



    [0002] In a peep prevention display in the prior art, the display device functions to prevent peep by allowing only the eyes that wear dedicated spectacles to view an image displayed in the display device, and by leaving a naked eye that does not wear dedicated spectacles be able of viewing only an all-white or all-gray image, as disclosed by document KR20140050897A.

    [0003] However, it would be felt strange by the people around that, one wearing no spectacles can only see an all-white image on a display, while another one wearing dedicated spectacles seems watching this "all-white" display screen, which give the people a feeling that "plug one's ears while stealing a bell". Thus, it is difficult for such a display device to hoodwink people, resulting in a bad confidentiality of the display device in peep preventive displays.

    SUMMARY



    [0004] The present application provides a display device as defined in claim 1, and a display system comprising the display device, which display device can simultaneously display image information that is viewable by a naked eye while conducting peep preventive displaying, thereby improving naturalness of a viewer viewing confidential information when the display device is conducting peep preventive displaying and improving in turn confidentiality of the display device in peep preventive displaying.

    [0005] To achieve the above object, the present application provides technical solutions as follows:

    A display device comprising a display panel and a light adjustment mechanism, the display panel comprising a plurality of pixel cells distributed in an array, the plurality of pixel cells comprising a plurality of pixel cell groups arranged in a given direction, wherein:

    each of the pixel cell groups comprises multiple lines of pixel cells arranged in the direction in which the plurality of pixel cell groups are arranged, wherein the multiple lines of pixel cells comprises:

    at least one first line of pixel cells for displaying information to be viewed by a dedicated spectacle wearer;

    a second line of pixel cells for displaying compensation information, wherein along a direction perpendicular to the direction in which the plurality of pixel cell groups are arranged, sub-pixel cells in each said first line of pixel cells and corresponding ones in the second line of pixel cells are of same colors, and a sum of brightness of display information of sub-pixel cells in each said first line of pixel cells and corresponding ones in the second line of pixel cells is a fixed value when in operation; and

    a third line of pixel cells for displaying pattern information to be viewed by a naked eye; and

    the light adjustment mechanism is located at a light exit side of the display panel, and makes light emitted out of the display panel by the first line of pixel cells, the second line of pixel cells, and the third line of pixel cells experiences respective phase retardations upon passing through the light adjustment mechanism, wherein:

    a difference between the phase retardation experienced by the light emitted by each said first line of pixel cells upon passing through the light adjustment mechanism and the phase retardation experienced by the light emitted by the third line of pixel cells upon passing through the light adjustment mechanism is (2a+1)λ/2, where a is an integer; and

    a difference between the phase retardation experienced by the light emitted by each said first line of pixel cells upon passing through the light adjustment mechanism and the phase retardation experienced by the light emitted by the second line of pixel cells upon passing through the light adjustment mechanism is (2a+1)λ/2, where a is an integer.



    [0006] With the above mentioned display device, a user wearing dedicated spectacles can see image information displayed by the first line of pixel cells when he/she is viewing images displayed on the display device. However, since light emitted by respective lines of pixel cells in each pixel cell group of the display device passes through the light adjustment mechanism, the difference between the phase retardation experienced by the light emitted by the second line of pixel cells and the third line of pixel cells, and the phase retardation experienced by the light emitted by the first line of pixel cells, is (2a+1)λ/2. Thus, the viewer wearing dedicated spectacles cannot see the information displayed by the second line of pixel cells and the third line of pixel cells; a naked-eye viewer can see the information displayed by the third line of pixel cells when viewing the display device.

    [0007] Due to the fact that the second line of pixel cells is adjacent to the first line of pixel cells, and that along a direction perpendicular to the direction in which the plurality of pixel cell groups are arranged, sub-pixel cells in the first line of pixel cells and corresponding ones in the second line of pixel cells are of the same colors, and have a sum of brightness of display information which is a fixed value when in operation, the naked-eye viewer cannot distinguish between the information displayed by the second line of pixel cells and the information displayed by the first line of pixel cells when viewing the information displayed on the display device, and can only see the information displayed by the third line of pixel cells. Thus, with the above mentioned display device, the user wearing dedicated spectacles can only see the information displayed by the first line of pixel cells when viewing the display device, and the naked-eye viewer can only see the information displayed by the third line of pixel cells, such that the viewer wearing dedicated spectacles and the naked-eye viewer are allowed to see different information, thereby improving the confidentiality of the display device in peep preventive displaying.

    [0008] Preferably, each of the pixel cell groups has therein one said first line of pixel cells, and the second line of pixel cells is located between the first line of pixel cells and the third line of pixel cells.

    [0009] Further preferably, the light adjustment mechanism comprises a plurality of first light adjustment parts and a plurality of second light adjustment parts which are arranged in the direction in which the plurality of pixel cell groups are arranged and which are disposed alternately, wherein each of the first light adjustment parts covers one first line of pixel cells, each of the second light adjustment parts covers one second line of pixel cells and one third line of pixel cells, and a difference between the phase retardation of the light resulting from the first light adjustment part and the phase retardation of the light resulting from the second light adjustment part is (2a+1)λ/2, where a is an integer.

    [0010] Preferably, each of the pixel cell groups further comprises a fourth line of pixel cells for displaying constantly black image information when viewed by the dedicated spectacle wearer, and the fourth line of pixel cells is adjacent to the third line of pixel cells and located between the second line of pixel cells and the third line of pixel cells.

    [0011] Preferably, the light adjustment mechanism comprises a plurality of first light adjustment parts and a plurality of second light adjustment parts which are arranged in the direction in which the plurality of pixel cell groups are arranged and which are disposed alternately, wherein each of the first light adjustment parts covers one line of pixel cells, each of the second light adjustment parts covers one line of pixel cells, and a difference between the phase retardation of the light resulting from the first light adjustment part and the phase retardation of the light resulting from the second light adjustment part is (2a+1)λ/2, where a is an integer.

    [0012] Preferably, in the light adjustment mechanism, the first light adjustment part is a positive quarter-wave plate, and the second light adjustment part is a negative quarter-wave plate.

    [0013] Preferably, each of the pixel cell groups further comprises:

    a fifth line of pixel cells for displaying constantly black image information when viewed by a naked eye, the fifth line of pixel cells being located at a side of the third line of pixel cells facing away from the fourth line of pixel cells; and

    a sixth line of pixel cells for displaying constantly black image information when viewed by the dedicated spectacle wearer, the sixth line of pixel cells being located between the fifth line of pixel cells and the third line of pixel cells.



    [0014] Preferably, each of the pixel cell groups further comprises a seventh line of pixel cells for displaying constantly black image information when viewed by the dedicated spectacle wearer, and the seventh line of pixel cells is adjacent to the first line of pixel cells and located a side of the first line of pixel cells facing away from the second line of pixel cells; the light adjustment mechanism comprises a plurality of third light adjustment parts and a plurality of fourth light adjustment parts which are arranged in the direction in which the plurality of pixel cell groups are arranged and which are disposed alternately; wherein in a portion of the light adjustment mechanism corresponding to each of the pixel cell groups:
    the third light adjustment part covers the first line of pixel cells and the seventh line of pixel cells, the fourth light adjustment part covers the second line of pixel cells and the third line of pixel cells, and a difference between the phase retardation of the light resulting from the third light adjustment part and the phase retardation of the light resulting from the fourth light adjustment part is (2a+1)λ/2, where a is an integer.

    [0015] Preferably, each of the pixel cell groups has therein two first lines of pixel cells, wherein the second line of pixel cells is located between the two first lines of pixel cells.

    [0016] Preferably, in the display panel:

    the direction in which the plurality of pixel cell groups are arranged is a row direction of the pixel cells in the display panel, and each arrangement of the pixel cells are a column of the pixel cells; or

    the direction in which the plurality of pixel cell groups are arranged is a column direction of the pixel cells in the display panel, and each line of the pixel cells is a row of the pixel cells.



    [0017] The present application further provides a display system which comprises dedicated spectacles having lenses attached with an optical film, and which further comprises a display device according to any of the technical solutions as mentioned above.

    BRIEF DESCRIPTION OF THE DRAWINGS



    [0018] 

    FIG. 1 is a structural schematic diagram of a display device according to an embodiment of the present application;

    FIG. 2 is a structural schematic diagram of a display device according to another embodiment of the present application;

    FIG. 3 is a structural schematic diagram of a display device according to another embodiment of the present application;

    FIG. 4 is a structural schematic diagram of a display device according to another embodiment of the present application; and

    FIG. 5 is a structural schematic diagram of a display device according to another embodiment of the present application.


    DETAILED DESCRIPTION



    [0019] The technical solutions of embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings of embodiments of the present application. Apparently, the described embodiments are only a part of embodiments of the present application, rather than all of them. All other embodiments obtained by a person skilled in the art, on the basis of embodiments of the present application, without making any inventive efforts, fall within the claimed scope of the present application.

    [0020] Please refer to FIGS. 1-4, the display device according to an embodiment of the present application comprises a display panel 1 and a light adjustment mechanism 2. The display panel 1 comprises a plurality of pixel cells distributed in an array, and the plurality of pixel cells comprise a plurality of pixel cell groups arranged in a given direction (e.g., a pixel cell group 11 as shown in FIG. 1), wherein:
    each of the pixel cell groups comprises multiple lines of pixel cells arranged in the direction in which the plurality of pixel cell groups are arranged, wherein, taking the pixel cell group 11 as an example, the multiple lines of pixel cells in the pixel cell group 11 comprises:

    at least one first line of pixel cells 111 for displaying information Al-An to be viewed by a dedicated spectacle wearer;

    a second line of pixel cells 112 for displaying compensation information Cl-Cn (where n is a positive integer), wherein along a direction perpendicular to the direction in which the plurality of pixel cell groups 11 are arranged, sub-pixel cells in each first line of pixel cells 111 and corresponding ones in the second line of pixel cells 112 are of same colors, and a sum of brightness of display information of sub-pixel cells in each first line of pixel cells 111 and corresponding ones in the second line of pixel cells 112 is a fixed value when in operation; and

    a third line of pixel cells 114 for displaying pattern information Bn to be viewed by a naked eye; and

    the light adjustment mechanism 2 is located at a light exit side of the display panel 1, and makes light emitted out of the display panel 1 by the first line of pixel cells 111, the second line of pixel cells 112, and the third line of pixel cells 114 experiences respective phase retardations upon passing through the light adjustment mechanism 2, wherein:

    a difference between the phase retardation experienced by the light emitted by each first line of pixel cells 111 upon passing through the light adjustment mechanism 2 and the phase retardation experienced by the light emitted by the third line of pixel cells 114 upon passing through the light adjustment mechanism 2 is (2a+1)λ/2, where a is an integer; and

    a difference between the phase retardation experienced by the light emitted by each said first line of pixel cells upon passing through the light adjustment mechanism and the phase retardation experienced by the light emitted by the second line of pixel cells upon passing through the light adjustment mechanism is (2a+1)λ/2, where a is an integer.



    [0021] It is readily understood by the person skilled in the art that, in FIGS. 1-4, the display panel 1 and the light adjustment mechanism 2 are arranged without overlapping with each other only for ease of description, and that in a practical device, both of them should be arranged to be overlapped with each other vertically. Furthermore, the shape parameters, such as aspect ratios, of the display panel 1 and the light adjustment mechanism 2 illustrated in the figure are exemplary, and the specific size of the display panel 1 and the light adjustment mechanism 2 may be adapted to an actual size of the display device.

    [0022] With the above mentioned display device, a user wearing dedicated spectacles can see image information displayed by the first line of pixel cells 111 when he/she is viewing images displayed on the display device. However, since light emitted by respective lines of pixel cells in each pixel cell group 11 of the display device passes through the light adjustment mechanism 2, the difference between the phase retardation experienced by the light emitted by the second line of pixel cells 112 and the third line of pixel cells 114, and the phase retardation experienced by the light emitted by the first line of pixel cells 111, is (2a+1)λ/2, such that a polarization direction of the linearly polarized light resulting from the light emitted by the second line of pixel cells 112 and the third line of pixel cells 114 passing through the light adjustment mechanism 2 is perpendicular to a polarization direction of the linearly polarized light resulting from the light emitted by the first line of pixel cells 111 passing through the light adjustment mechanism 2. Thus, the viewer wearing dedicated spectacles cannot see the information displayed by the second line of pixel cells 112 and the third line of pixel cells 114; a naked-eye viewer can see the information displayed by the third line of pixel cells 114 when viewing the display device. The dedicated spectacles include e.g. a polarizer, through which the linearly polarized light resulting from the light emitted by the first line of pixel cells 111 passing through the light adjustment mechanism 2 passes.

    [0023] Due to the fact that the second line of pixel cells 112 is adjacent to the first line of pixel cells 111, and that along a direction perpendicular to the direction in which the plurality of pixel cell groups 11 are arranged, sub-pixel cells in the first line of pixel cells 111 and corresponding ones in the second line of pixel cells 112 are of the same colors, and have a sum of brightness of display information which is a fixed value when in operation, it follows that, in the information seen by the naked-eye viewer, the information displayed by the first line of pixel cells 111 is hidden due to the compensation for a display brightness of the first line of pixel cells 111 from the second line of pixel cells 112 , and the information is not recognizable by the viewer in a naked-eye state. Therefore, the naked-eye viewer cannot distinguish between the information displayed by the second line of pixel cells 112 and the information displayed by the first line of pixel cells 111 in viewing the information displayed on the display device, and can only see the information displayed by the third line of pixel cells 114. Thus, with the above mentioned display device, the user wearing dedicated spectacles can only see the information displayed by the first line of pixel cells 111 in viewing the display device, and the naked-eye viewer can only see the information displayed by the third line of pixel cells 114, such that the viewer wearing dedicated spectacles and the naked-eye viewer are allowed to see different information, thereby improving the confidentiality of the display device in peep preventive displaying.

    [0024] As shown in FIGS. 1-4, in each pixel cell group 11, the second line of pixel cells 112 is located between the first line of pixel cells 111 and the third line of pixel cells 114.

    [0025] In the display device as disclosed in the above embodiments, the pixel cells in each pixel cell group 11 may be arranged in various ways.

    [0026] Scheme 1: as shown in FIG. 1, the pixel cell group 11 may have therein only one first line of pixel cells 111, and have only the first line of pixel cells 111, the second line of pixel cells 112, and the third line of pixel cells 114. The light adjustment part 23 in the light adjustment mechanism 2 is used for covering the first line of pixel cells 111, and the light adjustment part 24 in the light adjustment mechanism 2 is used for covering the second line of pixel cells 112 and the third line of pixel cells 114. The difference between the phase retardations of the light resulting from the light adjustment part 23 and the light adjustment part 24 is (2a+1)λ/2, where a is an integer. By way of example, as shown in FIG. 1, the light adjustment part 23 is a negative quarter-wave plate, and the light adjustment part 24 is a positive quarter-wave plate.

    [0027] In the above scheme 1, each pixel cell group 11 has therein only three lines of pixel cells, resulting in a high resolution for a viewer in viewing the display device, regardless of the viewer is a naked-eye viewer or a viewer wearing dedicated spectacles.

    [0028] Scheme 2: in addition to the first line of pixel cells 111, the second line of pixel cells 112, and the third line of pixel cells 114, each pixel cell group 11 may further comprise therein a fourth line of pixel cells 113 for displaying constantly black image information A0 when viewed by the dedicated spectacle wearer. Specifically, as shown in FIG. 2, the fourth line of pixel cells 113 is adjacent to the third line of pixel cells 114 and located between the second line of pixel cells 112 and the third line of pixel cells 114.

    [0029] The fourth line of pixel cells 113 enables prevention of "cross-talk" between the displayed information in the second line of pixel cells 112 and the displayed information in the third line of pixel cells 114 and, in turn, enables improvement of the definition of the information displayed by the third line of pixel cells 114 and viewed by the naked-eye viewer, improving the quality of the image viewed by the naked-eye viewer.

    [0030] Specifically, as shown in FIG. 2, when the individual lines of the pixel cells are arranged in the pixel cell group 11 in a way of scheme 2, the light adjustment mechanism 2 comprises first light adjustment parts 22 and second light adjustment parts 21 which are arranged in the direction in which the plurality of pixel cell groups 11 are arranged and which are disposed alternately. Therein, each of the first light adjustment parts 22 covers one line of pixel cells, each of the second light adjustment parts 21 covers one line of pixel cells, and a difference between the phase retardations of the light resulting from the first light adjustment part 22 and the second light adjustment part 21 is (2a+1)λ/2, where a is an integer.

    [0031] More preferably, in the light adjustment mechanism 2, the first light adjustment part 22 is a positive quarter-wave plate, and the second light adjustment part 21 is a negative quarter-wave plate.

    [0032] As shown in FIG. 2, in the respective pixel cell group, the second line of pixel cells 112 is covered by the first light adjustment part 22, and the third line of pixel cells 114 is covered by the first light adjustment part 22; meanwhile, the first line of pixel cells 111 is covered by the second light adjustment part 21, and the fourth line of pixel cells 113 is covered by the second light adjustment part 21. This ensures that the difference between the phase retardation experienced by the light emitted by the first line of pixel cells 111 upon passing through the second light adjustment part and the phase retardation experienced by the light emitted by the third line of pixel cells 114 upon passing through the first light adjustment part 22 is λ/2.

    [0033] Of course, in the light adjustment mechanism 2, it is possible that the phase retardation of the light resulting from the first light adjustment part 22 is 0, and the phase retardation of the light resulting from the second light adjustment part 21 is λ/2. This also ensures that the difference between the phase retardation experienced by the light emitted by the first line of pixel cells 111 upon passing through the second light adjustment part and the phase retardation experienced by the light emitted by the third line of pixel cells 114 upon passing through the first light adjustment part 22 is λ/2.

    [0034] Scheme 3: as shown in FIG. 3, in addition to the first line of pixel cells 111, the second line of pixel cells 112, and the third line of pixel cells 114, each pixel cell group 11 further comprises:

    a fifth line of pixel cells 116 for displaying constantly black image information B0 when viewed by a naked eye, the fifth line of pixel cells 116 being located at a side of the third line of pixel cells 114 facing away from the fourth line of pixel cells 113; and

    a sixth line of pixel cells 115 for displaying constantly black image information A0 when viewed by the dedicated spectacle wearer, the sixth line of pixel cells 115 being located between the fifth line of pixel cells 116 and the third line of pixel cells 114.



    [0035] The arrangement of the fifth line of pixel cells 116 and the sixth line of pixel cells 115 can prevent the "cross-talks" between the image information displayed by the third line of pixel cells 114 in a pixel cell group 11 and the first line of pixel cells 111 in another pixel cell group 11, thereby further improving the definition of the image information viewed by the naked-eye viewer.

    [0036] Scheme 4: as shown in FIG. 4, in addition to the first line of pixel cells 111, the second line of pixel cells 112, and the third line of pixel cells 114, each pixel cell group 11 further comprises a seventh line of pixel cells 117 for displaying constantly black image information A0 when viewed by the dedicated spectacle wearer. The seventh line of pixel cells 117 is adjacent to the first line of pixel cells 111 and located a side of the first line of pixel cells 111 facing away from the second line of pixel cells 112. The light adjustment mechanism 2 comprises third light adjustment parts 25 and fourth light adjustment parts 26 which are arranged in the direction in which the plurality of pixel cell groups 11 are arranged and which are disposed alternately; wherein in a respective portion of the light adjustment mechanism 2 corresponding to each of the pixel cell groups 11:
    the third light adjustment parts 25 covers the first line of pixel cells 111 and the seventh line of pixel cells 117, the fourth light adjustment parts 26 covers the second line of pixel cells 112 and the third line of pixel cells 114, and a difference between the phase retardations of the light resulting from the third light adjustment part 25 and the fourth light adjustment part 26 is (2a+1)λ/2, where a is an integer.

    [0037] In scheme 4, each of the third light adjustment parts 25 and the fourth light adjustment parts 26 in the light adjustment mechanism 2 covers two lines of pixel cells, achieving the same display effect as the display device structured in scheme 2. Moreover, the number of the third light adjustment parts 25 and the fourth light adjustment parts 26 in the light adjustment mechanism 2 is less than the number of the first light adjustment parts 22 and the second light adjustment parts 21 in scheme 2, facilitating the arrangement of the light adjustment mechanism 2. Scheme 5: in the pixel cell groups 11, as shown in FIG. 5, each pixel cell group comprises therein two first lines of pixel cells 111, and the second line of pixel cells 112 is located between these two first lines of pixel cells 111. A display device structured as such enables increase of the resolution of the image viewed by the dedicated spectacle wearer. Specifically, in the display panel 1:

    the direction in which the plurality of pixel cell groups 11 are arranged is a row direction of the pixel cells in the display panel 1, and each line of the pixel cells are a column of the pixel cells; or

    the direction in which the plurality of pixel cell groups 11 are arranged is a column direction of the pixel cells in the display panel 1, and each line of the pixel cells are a row of the pixel cells.



    [0038] Embodiments of the present application further provide a display system, which comprises dedicated spectacles having lenses attached with an optical film, and which further comprises a display device according to any of the above embodiments.

    [0039] Obviously, various modifications and variations can be made by those skilled in the art without departing from the scope of the present application. Thus, in case the modifications and variations to the present application are within the scope of claims of the present application, these modifications and variations are intended to be encompassed in the present application. In the claims, the word "comprises" or "comprising" does not exclude presence of elements or steps that are not listed in the claims. The word "a" or "an" preceding an element does not exclude presence of a plurality of such elements. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.


    Claims

    1. A display device, comprising a display panel (1) and a light adjustment mechanism (2), the display panel (1) comprising a plurality of pixel cells distributed in an array, the plurality of pixel cells comprising a plurality of pixel cell groups (11) arranged in a given direction, wherein:

    each of the pixel cell groups comprises multiple lines of pixel cells (111, 112, 114) arranged

    in the direction in which the plurality of pixel cell groups are arranged, wherein the multiple lines of pixel cells comprises:

    at least one first line of pixel cells (111) for displaying information to be viewed by a dedicated spectacle wearer;

    a second line of pixel cells (112) for displaying compensation information, wherein

    along a direction perpendicular to the direction in which the plurality of pixel cell groups are arranged, sub-pixel cells in each said first line of pixel cells and corresponding ones in the second line of pixel cells are of same colors, and a sum of brightness of display information of sub-pixel cells in each said first line of pixel cells and corresponding ones in the second line of pixel cells is a fixed value when in operation;

    the light adjustment mechanism (2) is located at a light exit side of the display panel, and makes light emitted out of the display panel by the first line of pixel cells (111) and the second line of pixel cells (112) experience respective phase retardations upon passing through the light adjustment mechanism, wherein:

    a difference between the phase retardation experienced by the light emitted by each said first line of pixel cells (111) upon passing through the light adjustment mechanism and the phase retardation experienced by the light emitted by the second line of pixel cells (112) upon passing through the light adjustment mechanism is (2a+1)λ/2, where a is an integer,

    characterized in that
    the multiple lines of pixel cells comprise a third line of pixel cells (114) for displaying pattern information to be viewed by a naked eye; and the light adjustment mechanism (2) makes light emitted out of the display panel by the third line of pixel cells (114) experience respective phase retardations upon passing through the light adjustment mechanism (2), wherein: a difference between the phase retardation experienced by the light emitted by each said first line of pixel cells (111) upon passing through the light adjustment mechanism and the phase retardation experienced by the light emitted by the third line of pixel cells (114) upon passing through the light adjustment mechanism is (2a+1)λ/2.


     
    2. The display device according to claim 1, wherein each of the pixel cell groups has therein one said first line of pixel cells, and that the second line of pixel cells is located between the first line of pixel cells and the third line of pixel cells.
     
    3. The display device according to claim 2, wherein the light adjustment mechanism comprises a plurality of first light adjustment parts and a plurality of second light adjustment parts which are arranged in the direction in which the plurality of pixel cell groups are arranged and which are disposed alternately, wherein each of the first light adjustment parts covers one first line of pixel cells, each of the second light adjustment parts covers one second line of pixel cells and one third line of pixel cells, and a difference between the phase retardation of the light resulting from the first light adjustment part and the phase retardation of the light resulting from the second light adjustment part is (2a+1)λ/2, where a is an integer.
     
    4. The display device according to claim 2, wherein each of the pixel cell groups further comprises a fourth line of pixel cells for displaying constantly black image information when viewed by the dedicated spectacle wearer, and the fourth line of pixel cells is adjacent to the third line of pixel cells and located between the second line of pixel cells and the third line of pixel cells.
     
    5. The display device according to claim 4, wherein the light adjustment mechanism comprises a plurality of first light adjustment parts and a plurality of second light adjustment parts which are arranged in the direction in which the plurality of pixel cell groups are arranged and which are disposed alternately, wherein each of the first light adjustment parts covers one line of pixel cells, each of the second light adjustment parts covers one line of pixel cells, and a difference between the phase retardation of the light resulting from the first light adjustment part and the phase retardation of the light resulting from the second light adjustment part is (2a+1)λ/2, where a is an integer.
     
    6. The display device according to claim 5, wherein in the light adjustment mechanism the first light adjustment part is a positive quarter-wave plate, and the second light adjustment part is a negative quarter-wave plate.
     
    7. The display device according to claim 5, wherein each of the pixel cell groups further comprises:

    a fifth line of pixel cells for displaying constantly black image information when viewed by a naked eye, the fifth line of pixel cells being located at a side of the third line of pixel cells facing away from the fourth line of pixel cells; and

    a sixth line of pixel cells for displaying constantly black image information when viewed by the dedicated spectacle wearer, the sixth line of pixel cells being located between the fifth line of pixel cells and the third line of pixel cells.


     
    8. The display device according to claim 2, wherein each of the pixel cell groups further comprises a seventh line of pixel cells for displaying constantly black image information when viewed by the dedicated spectacle wearer, that the seventh line of pixel cells is adjacent to the first line of pixel cells and located a side of the first line of pixel cells facing away from the second line of pixel cells, and that the light adjustment mechanism comprises a plurality of third light adjustment parts and a plurality of fourth light adjustment parts which are arranged in the direction in which the plurality of pixel cell groups are arranged and which are disposed alternately, wherein in a respective portion of the light adjustment mechanism corresponding to each of the pixel cell groups:
    the third light adjustment parts covers the first line of pixel cells and the seventh line of pixel cells, the fourth light adjustment parts covers the second line of pixel cells and the third line of pixel cells, and a difference between the phase retardation of the light resulting from the third light adjustment part and the phase retardation of the light resulting from the fourth light adjustment part is (2a+1)λ/2, where a is an integer.
     
    9. The display device according to claim 1, wherein each of the pixel cell groups has therein two first lines of pixel cells, wherein the second line of pixel cells is located between the two first lines of pixel cells.
     
    10. The display device according to any of claims 1-9, therein in the display panel:

    the direction in which the plurality of pixel cell groups are arranged is a row direction of the pixel cells in the display panel, and each line of the pixel cells are a column of the pixel cells; or

    the direction in which the plurality of pixel cell groups are arranged is a column direction of the pixel cells in the display panel, and each line of the pixel cells are a row of the pixel cells.


     
    11. A display system comprising dedicated spectacles having lenses attached with an optical film, wherein it further comprises a display device according to any of claims 1-10.
     
    12. The display system according to claim 11, wherein the lenses in the dedicated spectacles comprise polarizers.
     


    Ansprüche

    1. Anzeigeeinrichtung, umfassend ein Anzeigefeld (1) und einen Lichtanpassungsmechanismus (2), wobei das Anzeigefeld (1) eine Mehrzahl von in einem Array verteilten Pixelzellen umfasst, wobei die Mehrzahl von Pixelzellen eine Mehrzahl von in einer gegebenen Richtung angeordneten Pixelzellgruppen (11) umfasst, wobei
    jede der Pixelzellgruppen mehrere Reihen von Pixelzellen (111, 112, 114) umfasst, angeordnet in der Richtung, in der die Mehrzahl von Pixelzellgruppen angeordnet ist, wobei die mehreren Reihen von Pixelzellen umfassen:

    mindestens eine erste Reihe von Pixelzellen (111) zur Anzeige von Information zur Betrachtung durch einen Träger einer dedizierten Brille;

    eine zweite Reihe von Pixelzellen (112) zur Anzeige von Kompensationsinformation, wobei

    entlang einer senkrecht zu den Richtungen, in denen die Mehrzahl von Pixelzellgruppen angeordnet ist, verlaufenden Richtung Sub-Pixelzellen in jeder ersten Reihe von Pixelzellen und entsprechende Sub-Pixelzellen in der zweiten Reihe von Pixelzellen die gleichen Farben aufweisen und eine Summe der Helligkeit von Anzeigeinformation von Sub-Pixelzellen in jeder ersten Reihe von Pixelzellen und entsprechenden Sub-Pixelzellen in der zweiten Reihe von Pixelzellen während des Betriebs ein fester Wert ist;

    der Lichtanpassungsmechanismus (2) an einer Lichtaustrittsseite des Anzeigefeldes positioniert ist und durch die erste Reihe von Pixelzellen (111) und die zweite Reihe von Pixelzellen (112) aus dem Anzeigefeld emittiertes Licht beim Durchlaufen des Lichtanpassungsmechanismus entsprechende Phasenverzögerungen erfahren lässt, wobei

    eine Differenz zwischen der von dem durch jede erste Reihe von Pixelzellen (111) emittierten Licht beim Durchlaufen des Lichtanpassungsmechanismus erfahrenen Phasenverzögerung und der von dem durch die zweite Reihe von Pixelzellen (112) emittierten Licht beim Durchlaufen des Lichtanpassungsmechanismus erfahrenen Verzögerung (2a+1)λ/2 ist, wobei a eine Ganzzahl ist,

    dadurch gekennzeichnet, dass

    die mehreren Reihen von Pixelzellen eine dritte Reihe von Pixelzellen (114) zur Anzeige von Musterinformation bei Betrachtung mit bloßem Auge umfassen; und der Lichtanpassungsmechanismus (2) durch die dritte Reihe von Pixelzellen (114) aus dem Anzeigefeld emittiertes Licht beim Durchlaufen des Lichtanpassungsmechanismus (2) entsprechende Phasenverzögerungen erfahren lässt, wobei

    eine Differenz zwischen der von dem durch jede erste Reihe von Pixelzellen (111) emittierten Licht beim Durchlaufen des Lichtanpassungsmechanismus erfahrenen Phasenverzögerung und der von dem durch die dritte Reihe von Pixelzellen (114) emittierten Licht beim Durchlaufen des Lichtanpassungsmechanismus erfahrenen Verzögerung (2a+1)λ/2 ist.


     
    2. Anzeigeeinrichtung nach Anspruch 1, wobei jede der Pixelzellgruppen darin eine solche erste Reihe von Pixelzellen aufweist und die zweite Reihe von Pixelzellen zwischen der ersten Reihe von Pixelzellen und der dritten Reihe von Pixelzellen positioniert ist.
     
    3. Anzeigeeinrichtung nach Anspruch 2, wobei der Lichtanpassungsmechanismus eine Mehrzahl von ersten Lichtregulierungsteilen und eine Mehrzahl von zweiten Lichtregulierungsteilen umfasst, die in der Richtung angeordnet sind, in der die Mehrzahl von Pixelzellgruppen angeordnet ist, und die abwechselnd platziert sind, wobei jeder der ersten Lichtregulierungsteile eine erste Reihe von Pixelzellen abdeckt, jeder der zweiten Lichtregulierungsteile eine zweite Reihe von Pixelzellen und eine dritte Reihe von Pixelzellen abdeckt, und eine Differenz zwischen der Phasenverzögerung des Lichts, die sich aus dem ersten Lichtregulierungsteil ergibt, und der Phasenverzögerung des Lichts, die sich aus dem zweiten Lichtregulierungsteil ergibt, (2a+1)λ/2 ist, wobei a eine Ganzzahl ist.
     
    4. Anzeigeeinrichtung nach Anspruch 2, wobei jede der Pixelzellgruppen ferner eine vierte Reihe von Pixelzellen zur Anzeige von bei Betrachtung durch den Träger einer dedizierten Brille konstant schwarzer Bildinformation umfasst und die vierte Reihe von Pixelzellen neben der dritten Reihe von Pixelzellen und zwischen der zweiten Reihe von Pixelzellen und der dritten Reihe von Pixelzellen positioniert ist.
     
    5. Anzeigeeinrichtung nach Anspruch 4, wobei der Lichtanpassungsmechanismus eine Mehrzahl von ersten Lichtregulierungsteilen und eine Mehrzahl von zweiten Lichtregulierungsteilen umfasst, die in der Richtung angeordnet sind, in der die Mehrzahl von Pixelzellgruppen angeordnet ist, und die abwechselnd platziert sind, wobei jeder der ersten Lichtregulierungsteile eine Reihe von Pixelzellen abdeckt, jeder der zweiten Lichtregulierungsteile eine Reihe von Pixelzellen abdeckt, und eine Differenz zwischen der Phasenverzögerung des Lichts, die sich aus dem ersten Lichtregulierungsteil ergibt, und der Phasenverzögerung des Lichts, die sich aus dem zweiten Lichtregulierungsteil ergibt, (2a+1)λ/2 ist, wobei a eine Ganzzahl ist.
     
    6. Anzeigeeinrichtung nach Anspruch 5, wobei der erste Lichtregulierungsteil in dem Lichtanpassungsmechanismus eine positive Viertelwellenplatte ist und der zweite Lichtregulierungsteil eine negative Viertelwellenplatte ist.
     
    7. Anzeigeeinrichtung nach Anspruch 5, wobei jede der Pixelzellgruppen ferner umfasst:

    eine fünfte Reihe von Pixelzellen zur Anzeige von bei Betrachtung mit bloßem Auge konstant schwarzer Bildinformation, wobei die fünfte Reihe von Pixelzellen an einer Seite der dritten Reihe von Pixelzellen positioniert ist, die von der vierten Reihe von Pixelzellen wegweist; und

    eine sechste Reihe von Pixelzellen zur Anzeige von bei Betrachtung durch den Träger einer dedizierten Brille konstant schwarzer Bildinformation, wobei die sechste Reihe von Pixelzellen zwischen der fünften Reihe von Pixelzellen und der dritten Reihe von Pixelzellen positioniert ist.


     
    8. Anzeigeeinrichtung nach Anspruch 2, wobei jede der Pixelzellgruppen ferner eine siebte Reihe von Pixelzellen zur Anzeige von konstant schwarzer Bildinformation bei Betrachtung durch den Träger einer dedizierten Brille aufweist, wobei die siebte Reihe von Pixelzellen neben der ersten Reihe von Pixelzellen ist und an einer Seite der ersten Reihe von Pixelzellen positioniert ist, die von der zweiten Reihe von Pixelzellen wegweist, und wobei der Lichtanpassungsmechanismus eine Mehrzahl von dritten Lichtregulierungsteilen und eine Mehrzahl von vierten Lichtregulierungsteilen umfasst, die in der Richtung angeordnet sind, in der die Mehrzahl von Pixelzellgruppen angeordnet ist, und die abwechselnd platziert sind, wobei in einem jeder der Pixelzellgruppen entsprechenden dazugehörigen Abschnitt des Lichtanpassungsmechanismus
    die dritten Lichtregulierungsteile die erste Reihe von Pixelzellen und die siebte Reihe von Pixelzellen abdecken, die vierten Lichtregulierungsteile die zweite Reihe von Pixelzellen und die dritte Reihe von Pixelzellen abdecken, und eine Differenz zwischen der Phasenverzögerung des Lichts, die sich aus dem dritten Lichtregulierungsteil ergibt, und der Phasenverzögerung des Lichts, die sich aus dem vierten Lichtregulierungsteil ergibt, (2a+1)λ/2 ist, wobei a eine Ganzzahl ist.
     
    9. Anzeigeeinrichtung nach Anspruch 1, wobei jede der Pixelzellgruppen darin zwei erste Reihen von Pixelzellen aufweist, wobei die zweite Reihe von Pixelzellen zwischen den zwei ersten Reihen von Pixelzellen positioniert ist.
     
    10. Anzeigeeinrichtung nach einem der Ansprüche 1-9, wobei darin in dem Anzeigefeld

    die Richtung, in der die Mehrzahl von Pixelzellgruppen angeordnet ist, eine Zeilenrichtung der Pixelzellen in dem Anzeigefeld ist und jede Reihe der Pixelzellen eine Spalte der Pixelzellen ist; oder

    die Richtung, in der die Mehrzahl von Pixelzellgruppen angeordnet ist, eine Spaltenrichtung der Pixelzellen in dem Anzeigefeld ist und jede Reihe der Pixelzellen eine Zeile der Pixelzellen ist.


     
    11. Anzeigesystem, umfassend eine dedizierte Brille, aufweisend mit einem optischen Film verbundene Linsen, wobei ferner eine Anzeigeeinrichtung nach einem der Ansprüche 1-10 umfasst ist.
     
    12. Anzeigesystem nach Anspruch 11, wobei die Linsen in der dedizierten Brille Polarisatoren umfassen.
     


    Revendications

    1. Dispositif d'affichage comprenant un panneau d'affichage (1) et un mécanisme d'ajustement de lumière (2), le panneau d'affichage (1) comprenant une pluralité de cellules de pixels réparties en un réseau, la pluralité de cellules de pixels comprenant une pluralité de groupes de cellules de pixels (11) disposés dans une direction donnée, dans lequel :

    chacun des groupes de cellules de pixels comprend de multiples lignes de cellules de pixels (111, 112, 114) disposées dans la direction dans laquelle la pluralité de groupes de cellules de pixels sont disposés ;

    dans lequel les multiples lignes de cellules de pixels comprennent :

    au moins une première ligne de cellules de pixels (111) pour afficher des informations devant être visualisées par un porteur de lunettes dédiées ;

    une seconde ligne de cellules de pixels (112) pour afficher des informations de compensation, dans laquelle dans une direction perpendiculaire à la direction dans laquelle la pluralité de groupes de cellules de pixels sont disposés, des cellules de sous-pixels dans chacune de ladite première ligne de cellules de pixels et celles correspondantes dans la seconde ligne de cellules de pixels ont les mêmes couleurs, et la somme de luminosité des informations d'affichage des cellules de sous-pixels dans chacune de ladite première ligne de cellules de pixels et celles correspondantes dans la seconde ligne de cellules de pixels est une valeur fixe lors du fonctionnement ;

    le mécanisme d'ajustement de lumière (2) se situe au niveau d'un côté de sortie de lumière du panneau d'affichage, et fait subir à la lumière émise hors du panneau d'affichage par la première ligne de cellules de pixels (111) et la seconde ligne de cellules de pixels (112) des retards de phase respectifs lors du passage dans le mécanisme d'ajustement de lumière, dans lequel :

    une différence entre le retard de phase subi par la lumière émise par chaque dite première ligne de cellules de pixels (111) lors du passage dans le mécanisme d'ajustement de lumière et le retard de phase subi par la lumière émise par la seconde ligne de cellules de pixels (112) lors du passage dans le mécanisme d'ajustement de lumière est de (2a+1)λ/2, où a est un nombre entier,

    caractérisé en ce que :

    les multiples lignes de cellules de pixels comprennent une troisième ligne de cellules de pixels (114) pour afficher des informations de motif devant être visualisées à l'œil nu ; et

    le mécanisme d'ajustement de lumière (2) fait subir à la lumière émise hors du panneau d'affichage par la troisième ligne de cellules de pixels (114) des retards de phase respectifs lors du passage dans le mécanisme d'ajustement de lumière (2), dans lequel :

    une différence entre le retard de phase subi par la lumière émise par chacune de ladite première ligne de cellules de pixels (111) lors du passage dans le mécanisme d'ajustement de lumière et le retard de phase subi par la lumière émise par la troisième ligne de cellules de pixels (114) lors du passage dans le mécanisme d'ajustement de lumière est de (2a+1)λ/2.


     
    2. Dispositif d'affichage selon la revendication 1, dans lequel chacun des groupes de cellules de pixels comprend ladite première ligne de cellules de pixels, et la seconde ligne de cellules de pixels se situe entre la première ligne de cellules de pixels et la troisième ligne de cellules de pixels.
     
    3. Dispositif d'affichage selon la revendication 2, dans lequel le mécanisme d'ajustement de lumière comprend une pluralité de premières parties d'ajustement de lumière et une pluralité de secondes parties d'ajustement de lumière qui sont disposées dans la direction dans laquelle la pluralité de groupes de cellules de pixels sont disposés et qui sont disposées en alternance, dans lequel chacune des premières parties d'ajustement de lumière recouvre une première ligne de cellules de pixels, chacune des secondes parties d'ajustement de lumière recouvre une seconde ligne de cellules de pixels et une troisième ligne de cellules de pixels, et une différence entre le retard de phase de la lumière résultant de la première partie d'ajustement de lumière et le retard de phase de la lumière résultant de la seconde partie d'ajustement de lumière est de (2a+1)λ/2, où a est un nombre entier.
     
    4. Dispositif d'affichage selon la revendication 2, dans lequel chacun des groupes de cellules de pixels comprend en outre une quatrième ligne de cellules de pixels pour afficher constamment des informations d'image noires lorsque vues par le porteur de lunettes dédiées, et la quatrième ligne de cellules de pixels est adjacente à la troisième ligne de cellules de pixels et se situe entre la seconde ligne de cellules de pixels et la troisième ligne de cellules de pixels.
     
    5. Dispositif d'affichage selon la revendication 4, dans lequel le mécanisme d'ajustement de lumière comprend une pluralité de premières parties d'ajustement de lumière et une pluralité de secondes parties d'ajustement de lumière qui sont disposées dans la direction dans laquelle la pluralité de groupes de cellules de pixels sont disposés et qui sont disposées en alternance, dans lequel chacune des premières parties d'ajustement de lumière recouvre une ligne de cellules de pixels, chacune des secondes parties d'ajustement de lumière recouvre une ligne de cellules de pixels, et une différence entre le retard de phase de la lumière résultant de la première partie d'ajustement de lumière et le retard de phase de la lumière résultant de la seconde partie d'ajustement de lumière est de (2a+1)λ/2, où a est un nombre entier.
     
    6. Dispositif d'affichage selon la revendication 5, dans lequel, dans le mécanisme d'ajustement de lumière, la première partie d'ajustement de lumière est une plaque de quart d'onde positive et la seconde partie d'ajustement de lumière est une plaque de quart d'onde négative.
     
    7. Dispositif d'affichage selon la revendication 5, dans lequel chacun des groupes de cellules de pixels comprend en outre :

    une cinquième ligne de cellules de pixels pour afficher constamment des informations d'image noires lorsque vues à l'œil nu, la cinquième ligne de cellules de pixels se situant au niveau d'un côté de la troisième ligne de cellules de pixels opposée à la quatrième ligne de cellules de pixels ; et

    une sixième ligne de cellules de pixels pour afficher constamment des informations d'image noires lorsque vues par le porteur de lunettes dédiées, la sixième ligne de cellules de pixels se situant entre la cinquième ligne de cellules de pixels et la troisième ligne de cellules de pixels.


     
    8. Dispositif d'affichage selon la revendication 2, dans lequel chacun des groupes de cellules de pixels comprend en outre une septième ligne de cellules de pixels pour afficher constamment des informations d'image noires lorsque vues par le porteur de lunettes dédiées, la septième ligne de cellules de pixels étant adjacente à la première ligne de cellules de pixels et se situant au niveau d'un côté de la première ligne de cellules de pixels opposée à la seconde ligne de cellules de pixels, et le mécanisme d'ajustement de lumière comprend une pluralité de troisièmes parties d'ajustement de lumière et une pluralité de quatrièmes parties d'ajustement de lumière qui sont disposées dans la direction dans laquelle la pluralité de groupes de cellules de pixels sont disposés et qui sont disposées en alternance, dans lequel dans une partie respective du mécanisme d'ajustement de lumière correspondant à chacun des groupes de cellules de pixels :
    les troisièmes parties d'ajustement de lumière recouvrent la première ligne de cellules de pixels et la septième ligne de cellules de pixels, les quatrièmes parties d'ajustement de lumière recouvrent la seconde ligne de cellules de pixels et la troisième ligne de cellules de pixels, et une différence entre le retard de phase de la lumière résultant de la troisième partie d'ajustement de lumière et le retard de phase de la lumière résultant de la quatrième partie d'ajustement de lumière est de (2a+1)λ/2, où a est un nombre entier.
     
    9. Dispositif d'affichage selon la revendication 1, dans lequel chacun des groupes de cellules de pixels comporte deux premières lignes de cellules de pixels, dans lequel la seconde ligne de cellules de pixels se situe entre les deux premières lignes de cellules de pixels.
     
    10. Dispositif d'affichage selon l'une quelconque des revendications 1 à 9, dans lequel dans le panneau d'affichage :

    la direction dans laquelle la pluralité de groupes de cellules de pixels sont orientés est une direction de rangée de cellules de pixels dans le panneau d'affichage, et chaque ligne des cellules de pixels est une colonne des cellules de pixels ; ou

    la direction dans laquelle la pluralité de groupes de cellules de pixels sont orientés est une direction de colonne des cellules de pixels dans le panneau d'affichage et chaque ligne des cellules de pixels est une rangée des cellules de pixels.


     
    11. Système d'affichage comprenant des lunettes dédiées ayant des lentilles fixées avec un film optique, lequel comprend en outre un dispositif d'affichage selon l'une quelconque des revendications 1 à 10.
     
    12. Système d'affichage selon la revendication 11, dans lequel les lentilles dans les lunettes dédiées comprennent des polarisateurs.
     




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    REFERENCES CITED IN THE DESCRIPTION



    This list of references cited by the applicant is for the reader's convenience only. It does not form part of the European patent document. Even though great care has been taken in compiling the references, errors or omissions cannot be excluded and the EPO disclaims all liability in this regard.

    Patent documents cited in the description