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    LIQUID CRYSTAL LENS, DISPLAY DEVICE AND DRIVING METHOD THEREFOR
    32.
    发明公开
    LIQUID CRYSTAL LENS, DISPLAY DEVICE AND DRIVING METHOD THEREFOR 审中-公开

    公开(公告)号：US20230400746A1

    公开(公告)日：2023-12-14

    申请号：US18032226

    申请日：2020-12-23

    Applicant: BOE Technology Group Co., Ltd.

    Inventor： Zhongxiao LI ,  Wenqing ZHAO ,  Kuanjun PENG ,  Jing YU

    IPC: G02F1/29 ,  G02B3/14 ,  G02B30/28

    CPC classification number: G02F1/294 ,  G02B3/14 ,  G02B30/28

    Abstract: A liquid crystal lens liquid crystal lens includes: a first substrate and a second substrate; a liquid crystal layer including a plurality of liquid crystal lens units; a first electrode including a plurality of independent sub-electrodes, and there are sub-electrodes at adjacent positions of adjacent liquid crystal lens units; a second electrode being a planar electrode, the first electrode and the second electrode are configured to form an electric field to drive liquid crystal molecules of the liquid crystal layer to rotate, and adjust the curvature of the liquid crystal lens units; a first planar layer located on the side of the first electrode facing the liquid crystal layer, the first planar layer being configured to smooth an intensity variation curve of the electric field of the liquid crystal lens units; and a light-shielding layer located between the first substrate and the second substrate.

    Light Collimation Device, Backlight Module and Display Panel
    34.
    发明申请
    Light Collimation Device, Backlight Module and Display Panel 有权

    公开(公告)号：US20210302786A1

    公开(公告)日：2021-09-30

    申请号：US17196975

    申请日：2021-03-09

    Applicant: BOE Technology Group Co., Ltd.

    Inventor： Sen MA ,  Qian WANG ,  Tao HONG ,  Wenqing ZHAO ,  Qingxun ZHANG ,  Zhongxiao LI

    IPC: G02F1/13357 ,  F21V8/00 ,  G02F1/1335

    Abstract: A light collimation device, a backlight module and a display panel are provided. The light collimation device includes a lampshade and a light guiding part, wherein the lampshade includes a plurality of curved reflecting parts, a first total reflecting part and a second total reflecting part. The curved reflecting part is configured to reflect part of light from a light source arranged at a focal point of curved reflecting part to the first total reflecting part. The first total reflecting part is configured to reflect part of incident light to the second total reflecting part and directly direct another part of light to the light guiding part. The second total reflecting part is configured to reflect incident light to the light guiding part. The light guiding part is configured to cause incident light to propagate in a total reflection.

    ARRAY SUBSTRATE AND LIGHT FIELD DISPLAY DEVICE
    36.
    发明申请
    ARRAY SUBSTRATE AND LIGHT FIELD DISPLAY DEVICE 有权

    公开(公告)号：US20210210548A1

    公开(公告)日：2021-07-08

    申请号：US17212158

    申请日：2021-03-25

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Ming YANG ,  Can ZHANG ,  Minghua XUAN ,  Liang CHEN ,  Xiaochuan CHEN ,  Wenqing ZHAO

    IPC: H01L27/15 ,  H01L33/62 ,  G09G3/32 ,  H01L33/38

    Abstract: An array substrate is provided, including a substrate, wherein the substrate is provided with a plurality of electrodes and a plurality of first signal lines, each of the electrodes being correspondingly connected with a first signal line. In some examples, the first signal lines extend in the same direction. In some examples, at least two of the plurality of first signal lines are located in different layers of an insulating spacer from each other. In some examples, orthographic projections on the substrate of at least two of the first signal lines in the different layers at least partially overlap. Accordingly, a light field display device comprising the array substrate is also provided. The array substrate can reduce a light-emitting point size and increase a density distribution of light-emitting points.

    DISPLAY PANEL AND MANUFACTURING METHOD THEREOF, AND DISPLAY DEVICE
    37.
    发明申请
    DISPLAY PANEL AND MANUFACTURING METHOD THEREOF, AND DISPLAY DEVICE 有权

    公开(公告)号：US20210173137A1

    公开(公告)日：2021-06-10

    申请号：US17264027

    申请日：2020-05-25

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Xiandong MENG ,  Jifeng TAN ,  Shuilang DONG ,  Wei WANG ,  Wenqu LIU ,  Wenqing ZHAO ,  Qiuyu LING ,  Xianqin MENG ,  Yishan TIAN ,  Zhao KANG

    IPC: F21V8/00 ,  G02F1/1362

    Abstract: A display panel and a manufacturing method thereof, and a display device. The display panel includes a light guide plate, an array substrate, a liquid crystal layer between the light guide plate and the array substrate, a plurality of light-extracting gratings located on one side of a light exit surface of the light guide plate, and a transparent protection layer between a film layer where the light-extracting gratings are located and the light guide plate. The light guide plate includes a plurality of light-extracting port areas, and transparent areas besides the light-extracting port areas; each light-extracting port area is provided with one light-extracting grating; the protection layer is at least provided on the transparent areas, and the protection layer is configured to prevent the light guide plate in the transparent areas from being excessively etched to form a plurality of depressions.

    LIGHT GUIDE SUBSTRATE AND METHOD OF MANUFACTURING THE SAME, OPPOSITE SUBSTRATE AND LIQUID CRYSTAL DISPLAY APPARATUS
    38.
    发明申请
    LIGHT GUIDE SUBSTRATE AND METHOD OF MANUFACTURING THE SAME, OPPOSITE SUBSTRATE AND LIQUID CRYSTAL DISPLAY APPARATUS 有权

    公开(公告)号：US20210165155A1

    公开(公告)日：2021-06-03

    申请号：US17044268

    申请日：2019-09-03

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Jifeng TAN ,  Xiandong MENG ,  Wenqing ZHAO ,  Xiaochuan CHEN

    IPC: F21V8/00 ,  G02F1/1368 ,  G02F1/1335

    Abstract: A method of manufacturing a light guide substrate includes: providing a first base substrate; forming an interface protection layer on a side of the first base substrate; forming a grating structure layer at the side of the first base substrate where the interface protection layer has been formed; removing portions of the grating structure layer corresponding to the non-light extraction opening regions, so as to obtain a plurality of light extraction grating units in one-to-one correspondence with the plurality of light extraction opening regions; and removing portions of the interface protection layer corresponding to the non-light extraction opening regions. The first base substrate includes a plurality of light extraction opening regions and non-light extraction opening regions other than the plurality of light extraction opening regions.

    DISPLAY PANEL AND DISPLAY DEVICE
    39.
    发明申请
    DISPLAY PANEL AND DISPLAY DEVICE 审中-公开

    公开(公告)号：US20200278576A1

    公开(公告)日：2020-09-03

    申请号：US16645515

    申请日：2019-08-08

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Jifeng TAN ,  Wei WANG ,  Wenqing ZHAO ,  Xiandong MENG ,  Xianqin MENG ,  Fangzhou WANG ,  Jian GAO ,  Pengxia LIANG ,  Xiaochuan CHEN

    IPC: G02F1/1335 ,  G02F1/13357 ,  G02F1/1343 ,  F21V8/00

    Abstract: The present disclosure provides a display panel and a display device. The display panel includes a base substrate and light-shielding strips. The base substrate includes light-shielding regions and light-transmitting regions. The display panel further includes a backlight module including a light guide plate and light extraction gratings. The display panel further includes a first electrode layer, a second electrode layer, and a liquid crystal layer. The first and second electrode layers are configured to, in response to a control signal, control the liquid crystal layer to forms a plurality of liquid crystal grating periods. The liquid crystal within each of the plurality of liquid crystal grating periods includes a plurality of segments with different refractive indices, and the refractive indices of the plurality of segments progressively increase in a direction perpendicular to an extending direction of the first electrodes in the first electrode layer.

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