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    Backlight device and display apparatus
    11.
    发明授权
    Backlight device and display apparatus 有权

    公开(公告)号：US11307452B2

    公开(公告)日：2022-04-19

    申请号：US16814367

    申请日：2020-03-10

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Tao Hong

    IPC: G02F1/13357 ,  F21V8/00 ,  G02F1/1335 ,  G02F1/13363

    Abstract: The present disclosure provides a backlight device and a display apparatus. The backlight device includes: a light guide plate having a light exit face and a light entrance face, and a plurality of light extraction structures disposed on the light exit face. A light beam is totally reflected in the light guide plate, and can enter the light extraction structure through a surface of the light extraction structure that is in contact with the light exit surface of the light guide plate. The light extraction structure is configured to converge its output light beam when the backlight device is used in a dark display state, and diverge its output light beam when the backlight device is used in the grayscale display state.

    Light collimation device, backlight module and display panel
    12.
    发明授权
    Light collimation device, backlight module and display panel 有权

    公开(公告)号：US11215874B2

    公开(公告)日：2022-01-04

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

    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.

    Method for sharing augmented reality apparatus
    14.
    发明授权
    Method for sharing augmented reality apparatus 有权

    公开(公告)号：US10823959B2

    公开(公告)日：2020-11-03

    申请号：US16412488

    申请日：2019-05-15

    Applicant: BOE Technology Group Co., Ltd.

    Inventor： Tao Hong

    IPC: G02B27/00 ,  G06F21/31 ,  G06F21/83 ,  G06F21/84 ,  G06T19/00 ,  H04W12/06

    Abstract: Provided is a sharing method for an augmented reality apparatus, including sending an unlocking request to a server, wherein the unlocking request comprises an augmented reality device identifier and a user identifier; receiving a sharing unlocking instruction, wherein the sharing unlocking instruction is sent by the server when the unlocking request passes a verification; and performing system unlocking on the augmented reality apparatus.

    Integrated imaging display system
    16.
    发明授权
    Integrated imaging display system 有权

    公开(公告)号：US11226491B2

    公开(公告)日：2022-01-18

    申请号：US16753361

    申请日：2019-03-21

    Applicant: BOE Technology Group Co., Ltd.

    Inventor： Tao Hong

    IPC: G02B27/28 ,  G02B30/10 ,  H04N13/307 ,  H04N13/398

    Abstract: An integrated imaging display system is provided. The system includes: a display device, and a polarization converting element, an optical path folding element, and a micro-lens array provided on a light emitting side of the display device. The polarization converting element is configured to convert light emitted from the display device into first linearly polarized light in a first polarization state and second linearly polarized light in a second polarization state; and the micro-lens array is configured to form a first three-dimensional display image in a first depth-of-field range based on the first linearly polarized light and form a second three-dimensional display image in a second depth-of-field range based on the second linearly polarized light. Two depth-of-field ranges in the imaging space of the system may be formed, which enlarges the depth-of-field range of the imaging space.

    Optical system and display apparatus
    19.
    发明授权
    Optical system and display apparatus 有权

    公开(公告)号：US12228715B2

    公开(公告)日：2025-02-18

    申请号：US17607778

    申请日：2020-12-25

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Zhenxing Zhou ,  Tao Hong ,  Haoran Jing ,  Gaoming Sun

    IPC: G02B17/08 ,  G02B27/28 ,  G02B30/25

    Abstract: An optical system includes at least one first display module, at least one second display module, and a first optical element. The first optical element includes a first light incident surface, a second light incident surface, and a viewing surface. The first light incident surface is configured to transmit imaging light emitted from the at least one first display module into the first optical element and refract it onto the second light incident surface. The second light incident surface is configured to transmit imaging light emitted from the at least one second display module into the first optical element and refract it onto the viewing surface, and reflect the imaging light transmitted into the first optical element through the first light incident surface onto the viewing surface. The viewing surface is configured to transmit the imaging light emitted from all display modules to a human eye.

    Display device and driving method therefor
    20.
    发明授权
    Display device and driving method therefor 有权

    公开(公告)号：US12142171B2

    公开(公告)日：2024-11-12

    申请号：US18252341

    申请日：2020-12-21

    Applicant: BOE Technology Group Co., Ltd.

    Inventor： Chunmiao Zhou ,  Tao Hong ,  Kuanjun Peng

    IPC: G09G3/00 ,  G02B30/27 ,  G06F3/01 ,  G09G3/20

    Abstract: Provided are a display device and a driving method therefor. Each pixel island in a display panel is divided into a plurality of sub-pixel subdivision units, different monocular viewpoint images are formed by rendering different grayscales for different sub-pixel subdivision units, and a main lobe angle of each lens is adjusted to satisfy that the monocular viewpoint images displayed by the sub-pixel subdivision units in a pixel island are projected to a corresponding independent visible region respectively through different lenses to form a viewpoint, so as to satisfy conditions for achieving super-multi-viewpoint 3D display.

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