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    PIXEL UNIT CIRCUIT, PIXEL CIRCUIT, METHOD FOR DRIVING PIXEL CIRCUIT AND DISPLAY DEVICE
    151.
    发明申请
    PIXEL UNIT CIRCUIT, PIXEL CIRCUIT, METHOD FOR DRIVING PIXEL CIRCUIT AND DISPLAY DEVICE 有权

    公开(公告)号：US20210166632A1

    公开(公告)日：2021-06-03

    申请号：US17170196

    申请日：2021-02-08

    Applicant: BOE Technology Group Co., Ltd.

    Inventor： Shengji Yang ,  Xue Dong ,  Xiaochuan Chen ,  Hui Wang ,  Yanming Wang ,  Pengcheng Lu ,  Wei Liu ,  Huijuan Wang ,  Minghua Xuan

    IPC: G09G3/3258 ,  G09G3/3233

    Abstract: A pixel unit circuit includes a light emitting element, a first end thereof being coupled to a low level input end; a storage capacitor module, a first end thereof being coupled to a direct current voltage input end; a driving transistor, a gate electrode thereof being coupled to a second end of the storage capacitor module, and a first electrode thereof being coupled to a second end of the light emitting element; a first control module, coupled to a gate line, a data line and the gate electrode of the driving transistor, configured to control whether the gate electrode of the driving transistor is connected to the data line under the control of the gate line; and a potential control transistor, a gate electrode and a first electrode thereof being coupled to the first electrode of the driving transistor, the second electrode thereof being grounded.

    Display substrate having microcavities
    152.
    发明授权
    Display substrate having microcavities 有权

    公开(公告)号：US11005063B2

    公开(公告)日：2021-05-11

    申请号：US16830087

    申请日：2020-03-25

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Li Liu ,  Xiaochuan Chen ,  Shengji Yang ,  Kuanta Huang ,  Pengcheng Lu ,  Yongfa Dong

    IPC: H01L33/00 ,  H01L51/52 ,  H01L51/56 ,  H01L27/32

    Abstract: A display substrate and a method for manufacturing the same are provided. The display substrate includes: a base substrate; a first-color sub-pixel region and a second-color sub-pixel region on the base substrate. The first-color sub-pixel region includes: a first reflective layer, a first isolation layer and a first anode layer, the first reflective layer and the first anode layer being electrically connected with each other through a first connection element which penetrates through the first isolation layer. The second-color sub-pixel region includes: a second reflective layer, a second isolation layer and a second anode layer, the second reflective layer and the second anode layer being electrically connected with each other through a second connection element which penetrates through the second isolation layer. Thicknesses of the first isolation layer and the second isolation layer are different.

    DISPLAY SUBSTRATE AND METHOD FOR MANUFACTURING THE SAME
    155.
    发明申请
    DISPLAY SUBSTRATE AND METHOD FOR MANUFACTURING THE SAME 有权

    公开(公告)号：US20210098748A1

    公开(公告)日：2021-04-01

    申请号：US16830087

    申请日：2020-03-25

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Li Liu ,  Xiaochuan Chen ,  Shengji Yang ,  Kuanta Huang ,  Pengcheng Lu ,  Yongfa Dong

    IPC: H01L51/56 ,  H01L51/52 ,  H01L27/32

    Abstract: A display substrate and a method for manufacturing the same are provided. The display substrate includes: a base substrate; a first-color sub-pixel region and a second-color sub-pixel region on the base substrate. The first-color sub-pixel region includes: a first reflective layer, a first isolation layer and a first anode layer, the first reflective layer and the first anode layer being electrically connected with each other through a first connection element which penetrates through the first isolation layer. The second-color sub-pixel region includes: a second reflective layer, a second isolation layer and a second anode layer, the second reflective layer and the second anode layer being electrically connected with each other through a second connection element which penetrates through the second isolation layer. Thicknesses of the first isolation layer and the second isolation layer are different.

    Method for driving a pixel circuit
    156.
    发明授权
    Method for driving a pixel circuit 有权

    公开(公告)号：US10964256B2

    公开(公告)日：2021-03-30

    申请号：US16329419

    申请日：2018-05-15

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Minghua Xuan ,  Shengji Yang ,  Lei Wang ,  Li Xiao ,  Jie Fu ,  Pengcheng Lu ,  Dongni Liu ,  Xiaochuan Chen

    IPC: G09G3/30 ,  G09G3/36 ,  G09G3/3225 ,  G09G3/3258 ,  G09G3/3275

    Abstract: A pixel circuit, a driving method thereof, and a display device are provided. A driving sub-circuit of the pixel circuit is configured to provide a data signal from the data signal terminal to the driving node under the control of a driving signal from the driving signal terminal. A holding sub-circuit of the pixel circuit is configured to acquire a potential of the driving node under the control of a first switching signal from the first switching signal terminal, and maintain the potential of the driving node unchanged under the control of a first power signal from the first power signal terminal and a second power signal from the second power signal terminal. A light emitting sub-circuit of the pixel circuit is connected to the driving node and is configured to emit light under the driving of the driving node.

    Pixel circuit and driving method therefor, and display panel
    157.
    发明授权
    Pixel circuit and driving method therefor, and display panel 有权

    公开(公告)号：US10937367B2

    公开(公告)日：2021-03-02

    申请号：US16330639

    申请日：2018-04-11

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Minghua Xuan ,  Xiaochuan Chen ,  Shengji Yang ,  Pengcheng Lu ,  Lei Wang ,  Jie Fu ,  Li Xiao

    IPC: G09G3/3233 ,  G09G3/3258

    Abstract: A pixel circuit and a driving method therefor, and a display panel. The circuit includes: a node control circuit, a driver, a display sub-circuit, a threshold compensator, and a reset device; the node control circuit outputs a reference voltage to a first node, or outputs a data voltage to the first node. The driver outputs a drive current; the display sub-circuit is configured to display a gray scale; the threshold compensator is configured to adjust a voltage of a second node to the sum of a voltage of a first level terminal and a threshold voltage of the driver, and adjust the voltage of the second node to a difference between the sum of the voltage of the first level signal, the threshold voltage of the driver, and the reference voltage and the data voltage; and the reset device is configured to reset the second node and the display sub-circuit.

    Liquid crystal grating and driving method thereof, display device
    159.
    发明授权
    Liquid crystal grating and driving method thereof, display device 有权

    公开(公告)号：US10859879B2

    公开(公告)日：2020-12-08

    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: G02B30/00 ,  G02F1/1343 ,  G02F1/137 ,  G02F1/29 ,  G02F1/133 ,  G02B30/27

    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.

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