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    LIQUID CRYSTAL GRATING AND DRIVING METHOD THEREOF, DISPLAY DEVICE
    21.
    发明申请
    LIQUID CRYSTAL GRATING AND DRIVING METHOD THEREOF, DISPLAY DEVICE 审中-公开

    公开(公告)号：US20190265557A1

    公开(公告)日：2019-08-29

    申请号：US16341357

    申请日：2018-09-04

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Ming YANG ,  Xiaochuan CHEN ,  Shengji YANG ,  Wenqing ZHAO ,  Pengcheng LU

    IPC: G02F1/1343 ,  G02F1/137 ,  G02B27/22

    Abstract: The present disclosure provides a liquid crystal grating, a method for driving the liquid crystal grating, and a display device. In the embodiments of the present disclosure, by applying the second voltage and the third voltage that are mutually inverted with respect to the common electrode voltage, the situation in which a single phase voltage is applied to all grating electrodes corresponding to the power-on optical state can be avoided. Due to the capacitance of liquid crystal, the influence of the second voltage on the common electrode voltage and the influence of the third voltage on the common electrode voltage cancel each other out. Therefore, the fluctuation of the common electrode voltage caused by the capacitance of liquid crystal can be effectively reduced or eliminated, thereby avoiding the failure of the liquid crystal grating.

    PIXEL UNIT CIRCUIT, PIXEL CIRCUIT, DRIVING METHOD AND DISPLAY DEVICE
    22.
    发明申请
    PIXEL UNIT CIRCUIT, PIXEL CIRCUIT, DRIVING METHOD AND DISPLAY DEVICE 审中-公开

    公开(公告)号：US20190251905A1

    公开(公告)日：2019-08-15

    申请号：US16335024

    申请日：2018-06-21

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Shengji YANG ,  Xue DONG ,  Xiaochuan CHEN ,  Hui WANG ,  Yanming WANG ,  Minghua XUAN ,  Pengcheng LU ,  Wei LIU ,  Kuanta HUANG

    IPC: G09G3/3258

    Abstract: The present disclosure provides a pixel unit circuit, a pixel circuit, a driving method and a display device. The pixel unit circuit includes: a light-emitting component with a first terminal coupled with a first voltage input terminal; a storage capacitor module; a driver transistor; a light-emitting control circuit with a control terminal coupled with a light-emitting control line, a first terminal coupled with a second voltage input terminal and a second terminal coupled with a second electrode of the driver transistor, where the light-emitting control circuit is to, under control of the light-emitting control line, control whether the second electrode of the driver transistor is coupled with the second voltage input terminal; a charging compensation control circuit configured to, under control of a gate line, control whether a gate electrode of the driver transistor is coupled with a data line; and a voltage control circuit coupled with the first voltage input terminal and configured to control a voltage value of a first voltage input to the first voltage input terminal.

    DRIVING METHOD FOR TOUCH DISPLAY PANEL
    23.
    发明申请
    DRIVING METHOD FOR TOUCH DISPLAY PANEL 审中-公开

    公开(公告)号：US20190235663A1

    公开(公告)日：2019-08-01

    申请号：US16329826

    申请日：2018-07-03

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Minghua XUAN ,  Xiaochuan CHEN ,  Shengji YANG ,  Pengcheng LU ,  Lei WANG ,  Li XIAO ,  Jie FU

    IPC: G06F3/044 ,  G06F3/041 ,  G09G3/3208

    CPC classification number: G06F3/044 ,  G06F3/041 ,  G06F3/0412 ,  G09G3/3208

    Abstract: A driving method of a touch display panel is provided. The touch display panel includes a plurality of regions each including a regional electrode. The driving method includes: one frame time including a plurality of display time periods, during each display time period, the plurality of regions including a display region performing display, and a region other than the display region being a non-display region, the display region including at least one region; during each display time period, applying a display signal to the regional electrode of the display region; during at least one display time period, the non-display region including at least one region, applying a touch signal to the regional electrode of the at least one region, and/or, inserting a touch time period between at least two display time periods and applying a touch signal to the regional electrode of the at least one region.

    TOUCH PANEL AND TOUCH SCREEN
    24.
    发明申请
    TOUCH PANEL AND TOUCH SCREEN 审中-公开

    公开(公告)号：US20190095016A1

    公开(公告)日：2019-03-28

    申请号：US16029162

    申请日：2018-07-06

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Shengji YANG ,  Xue DONG ,  Xiaochuan CHEN ,  Pengcheng LU ,  Lei WANG ,  Zhi WANG ,  Weifeng HAN ,  Jing YU

    IPC: G06F3/041 ,  G09G3/3225

    Abstract: The present disclosure relates to a touch panel and a touch screen. In the touch panel, the cathode is reused. In the touch control stage, each of the cathodes serves as a touch electrode, and normal display and touch functions of the touch panel can be realized by a time-division driving manner. Specifically, in the display stage, the pixel circuit controls the light emitting state of each pixel point (each pixel point has a light emitting device including a cathode); in the touch control stage, touch control signals are applied onto all control signal terminals of the pixel circuit and the cathodes at the same time. By doing so, on the basis that the touch control function can be realized, the synchronous driving of the touch control electrodes and the electrodes corresponding to the touch control electrodes can be realized.

    GRATING ASSEMBLY, LIGHT SOURCE APPARATUS AND DRIVING METHOD OF THE SAME
    26.
    发明申请
    GRATING ASSEMBLY, LIGHT SOURCE APPARATUS AND DRIVING METHOD OF THE SAME 审中-公开

    公开(公告)号：US20180196175A1

    公开(公告)日：2018-07-12

    申请号：US15528416

    申请日：2016-06-03

    Applicant: BOE TECHNOLOGY GROUP CO., LTD. ,  BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.

    Inventor： Qian WANG ,  Xiaochuan CHEN ,  Wenqing ZHAO ,  Rui XU ,  Lei WANG ,  Ming YANG ,  Pengcheng LU ,  Jian GAO ,  Xiaochen NIU

    IPC: G02B5/18 ,  G02F1/29

    Abstract: The present disclosure, belonging to the field of display technology, provides a grating assembly, a light source apparatus and a driving method thereof, which can solve a problem that an existing light source cannot provide light with a controllable direction. The grating assembly of the present disclosure comprises: a diffraction grating divided into a plurality of sub-pixels, each sub-pixel being divided into a plurality of regions, the diffraction grating being configured to change light transmitted through each region into parallel light and cause light transmitted through different regions of a same sub-pixel to have different directions; and a selector divided into a plurality of sub-pixels corresponding to sub-pixels of the diffraction grating, each sub-pixel being divided into a plurality of regions corresponding to the regions of the sub-pixel of the diffraction grating, the selector being configured to control whether each region thereof transmits light or not.

    BACKLIGHT AND DISPLAY APPARATUS
    27.
    发明申请
    BACKLIGHT AND DISPLAY APPARATUS 审中-公开

    公开(公告)号：US20180107066A1

    公开(公告)日：2018-04-19

    申请号：US15520340

    申请日：2016-08-30

    Applicant: BOE TECHNOLOGY GROUP CO., LTD. ,  BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.

    Inventor： Jian GAO ,  Xue DONG ,  Xiaochuan CHEN ,  Wenqing ZHAO ,  Pengcheng LU ,  Xiaochen NIU

    IPC: G02F1/1335 ,  G02B27/10 ,  G02B27/12 ,  G02F1/13 ,  G02F1/1334

    Abstract: The present application discloses a backlight comprising a surface light source and a beam splitting film provided on a light-exiting surface of the surface light source. A beam splitting structure is provided on a surface of the beam splitting film distal to the surface light source, and the surface of beam splitting film distal to the surface light source is divided into a plurality of beam splitting units. The beam splitting* structure in each of the plurality of beam splitting units is capable of splitting light entering a surface of the beam splitting film proximal to the surface light source into at least three light beams each having a different emergent direction and a different wavelength. The present application also discloses a display apparatus having the backlight.

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