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    ARRAY SUBSTRATE AND DISPLAY DEVICE
    21.
    发明公开
    ARRAY SUBSTRATE AND DISPLAY DEVICE 审中-公开

    公开(公告)号：US20240177662A1

    公开(公告)日：2024-05-30

    申请号：US17789918

    申请日：2021-06-29

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Libin LIU ,  Jiangnan LU ,  Shimming SHI ,  Li WANG

    IPC: G09G3/3233

    CPC classification number: G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2320/0233 ,  G09G2320/0247 ,  G09G2320/066

    Abstract: An array substrate and a display device are provided. The array substrate includes a plurality of pixel driving circuits, each of which includes a driving transistor, a first light emitting control transistor, a compensation transistor, a first initialization transistor and a second initialization transistor; a first electrode of the first initialization transistor and a first electrode of the first light emitting control transistor are connected to a first node; a first electrode of the second initialization transistor and a first electrode of the compensation transistor are connected to a second node, a second electrode of the first initialization transistor is configured to receive the first initialization signal, and a cathode of the light emitting element is configured to receive a first driving signal, and a difference between a potential of the first initialization signal and a potential of the first driving signal is less than 1.5V.

    SHIFT REGISTER CIRCUIT AND DRIVING METHOD THEREOF, GATE DRIVING CIRCUIT, AND DISPLAY DEVICE
    23.
    发明公开
    SHIFT REGISTER CIRCUIT AND DRIVING METHOD THEREOF, GATE DRIVING CIRCUIT, AND DISPLAY DEVICE 审中-公开

    公开(公告)号：US20240071312A1

    公开(公告)日：2024-02-29

    申请号：US17765045

    申请日：2021-03-23

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Guangliang SHANG ,  Jiangnan LU ,  Long HAN ,  Li WANG ,  Libin LIU ,  Xinshe YIN ,  Shiming SHI

    IPC: G09G3/3266

    CPC classification number: G09G3/3266 ,  G09G2310/0286 ,  G11C19/287

    Abstract: A shift register circuit includes a first control sub-circuit and a first output sub-circuit. The first control sub-circuit is configured to: adjust a voltage of a first node to a turn-on voltage due to an influence of a first direct current voltage signal from a first clock signal terminal, an initial voltage signal from an initial signal terminal and a second direct current voltage signal from a second clock signal terminal; and maintain the voltage of the first node at the turn-on voltage due to an influence of a first clock signal from the first clock signal terminal and a second clock signal from the second clock signal terminal. The first output sub-circuit is configured to be turned on under a control of the turn-on voltage of the first node to transmit a first voltage signal from a first voltage terminal to a signal output terminal.

    PIXEL COMPENSATION CIRCUIT, DRIVING METHOD THEREOF AND DISPLAY DEVICE
    25.
    发明公开
    PIXEL COMPENSATION CIRCUIT, DRIVING METHOD THEREOF AND DISPLAY DEVICE 审中-公开

    公开(公告)号：US20230178015A1

    公开(公告)日：2023-06-08

    申请号：US17428906

    申请日：2021-02-24

    Applicant: BOE Technology Group Co., Ltd.

    Inventor： Li WANG

    IPC: G09G3/3233

    CPC classification number: G09G3/3233 ,  G09G2300/0842 ,  G09G2310/061 ,  G09G2320/0247 ,  G09G2330/021

    Abstract: The present disclosure provides a pixel compensation circuit and a driving method thereof. The pixel compensation circuit includes a resetting unit, a write-in unit, a light-emitting unit, a storage capacitor and a driving transistor. The resetting unit is configured to receive a resetting signal and release electric energy on the storage capacitor and an electroluminescence element. The write-in unit is configured to receive a gate driving signal and write display data into a holding node coupled to the storage capacitor. The light-emitting unit is configured to receive a light-emitting signal and turn on the driving transistor to enable the electroluminescence element to emit light. A compensation unit is added between the holding node and a high potential end and configured to generate a reverse current for compensating a leakage current of the resetting unit.

    DISPLAY SUBSTRATE AND DISPLAY APPARATUS
    26.
    发明公开
    DISPLAY SUBSTRATE AND DISPLAY APPARATUS 审中-公开

    公开(公告)号：US20230165076A1

    公开(公告)日：2023-05-25

    申请号：US17630589

    申请日：2021-02-08

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Long HAN ,  Tian DONG ,  Li WANG

    IPC: H10K59/131 ,  G09G3/3233

    CPC classification number: H10K59/131 ,  G09G3/3233 ,  H10K59/126

    Abstract: A display substrate has sub-pixels. Each column of sub-pixels includes first and second sub-pixels alternately arranged. The display substrate includes a base, a second source-drain metal layer including first and second connection portions, and a first source-drain metal layer including first and second data lines alternately arranged. A pixel driving circuit of each first sub-pixel is connected to a second end of a first connection portion, and a first end there is connected to a corresponding first data line. A pixel driving circuit of each second sub-pixel is connected to a second end of a second connection portion, and a first end thereof is connected to a corresponding second data line. In a same column of sub-pixels, an extension direction of a first line connecting a second end of a first connection portion and a second end of a second connection portion is substantially parallel to a second direction.

    PIXEL DRIVING CIRCUIT AND PIXEL DRIVING METHOD THEREFOR, DISPLAY PANEL, AND DISPLAY APPARATUS
    27.
    发明申请
    PIXEL DRIVING CIRCUIT AND PIXEL DRIVING METHOD THEREFOR, DISPLAY PANEL, AND DISPLAY APPARATUS 有权

    公开(公告)号：US20230042603A1

    公开(公告)日：2023-02-09

    申请号：US17791965

    申请日：2021-05-17

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Lujiang HUANGFU ,  Li WANG ,  Can ZHENG ,  Libin LIU

    IPC: G09G3/3258

    Abstract: A pixel driving circuit includes a reset sub-circuit, a compensation sub-circuit, a light-emitting control sub-circuit and a driving sub-circuit. The reset sub-circuit is configured to transmit an initialization signal received from an initialization signal terminal to the light-emitting control sub-circuit. The fight-emitting control sub-circuit is configured to transmit the initialization signal to the first node. The compensation sub-circuit is configured to transmit the initialization signal from the first node to a second node so as to reset a voltage of the second node. The driving sub-circuit is configured to open a conductive path from a first voltage signal terminal to the initialization signal terminal during a process of resetting the voltage of the second node.

    DRIVING BACKPLANE AND DISPLAY PANEL
    28.
    发明申请
    DRIVING BACKPLANE AND DISPLAY PANEL 有权

    公开(公告)号：US20220328007A1

    公开(公告)日：2022-10-13

    申请号：US17851253

    申请日：2022-06-28

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Tian DONG ,  Li WANG

    IPC: G09G3/3258 ,  G09G3/3275 ,  H01L27/32 ,  G09G3/3266 ,  H01L27/12 ,  G09G3/3233

    Abstract: A driving backplane includes: a base, and pixel driving circuits, data lines and first power supply voltage lines that are disposed on the base. The pixel driving circuit is electrically connected to a data line and a first power supply voltage line. The pixel driving circuit includes a driving transistor, a first switching transistor, and a first conductive pattern located on a side, away from the base, of a gate of the driving transistor and a gate of the first switching transistor. The first conductive pattern is electrically connected to the gate of the driving transistor through a first via, and to a second electrode of the first switching transistor through a second via. An orthogonal projection of the first conductive pattern on the base is located within an orthogonal projection of the first power supply voltage line on the base.

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