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    PIXEL CIRCUIT, DRIVING METHOD THEREOF AND DISPLAY APPARATUS
    11.
    发明申请
    PIXEL CIRCUIT, DRIVING METHOD THEREOF AND DISPLAY APPARATUS 有权

    公开(公告)号：US20210150975A1

    公开(公告)日：2021-05-20

    申请号：US16891124

    申请日：2020-06-03

    Applicant: BOE Technology Group Co., Ltd.

    Inventor： Shengnan Li ,  Wei Qin ,  Tieshi Wang ,  Weixing Liu ,  Chunfang Zhang ,  Wanpeng Teng ,  Dongni Liu

    IPC: G09G3/32

    Abstract: A pixel circuit, a driving method thereof and a display apparatus are provided. The pixel circuit comprises a control module, a short-circuit protection module, a drive transistor and a light-emitting device, wherein the short-circuit protection module is used for providing a data voltage to a gate of the drive transistor in response to a gate signal; a second pole of the drive transistor is connected to a positive pole of the light-emitting device, and a negative pole of the light-emitting device receives a second power supply voltage; the short-circuit protection module is used for providing a third power supply voltage to the gate of the drive transistor to turn off the drive transistor in response to the data voltage provided to the gate of the drive transistor and the second power supply voltage provided to the positive pole of the light-emitting device.

    Pixel-driving circuit and method, and a display utilizing the same
    14.
    发明授权
    Pixel-driving circuit and method, and a display utilizing the same 有权

    公开(公告)号：US11217175B2

    公开(公告)日：2022-01-04

    申请号：US16772796

    申请日：2019-12-09

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Wanpeng Teng ,  Xueling Gao

    IPC: G09G3/3258 ,  G09G3/3233

    Abstract: A pixel-driving circuit includes: a write-compensation sub-circuit coupled to a signal scanning terminal, a data terminal and a driving sub-circuit, and configured to, controlled with voltage from the signal scanning terminal, provide voltages of the data terminal to the driving sub-circuit for compensation; the light-emission control sub-circuit is coupled with the light-emission terminal, the first power source terminal and the driving sub-circuit and configured to provide voltages of the first power source terminal to the first terminal of the driving transistor controlled with voltage from the light-emission control terminal; the reset sub-circuit is coupled with the reset signal terminal, the initial voltage terminal, and the driving sub-circuit and to provide voltages of the initial voltage terminal to the gate of the driving transistor controlled with voltage from the reset signal terminal, causing the driving transistor to be in ON and OFF states respectively during the first and second initialization phases.

    PIXEL CIRCUIT AND METHOD FOR DRIVING THE SAME, AND DISPLAY PANEL
    15.
    发明申请
    PIXEL CIRCUIT AND METHOD FOR DRIVING THE SAME, AND DISPLAY PANEL 有权

    公开(公告)号：US20210327357A1

    公开(公告)日：2021-10-21

    申请号：US17271776

    申请日：2020-07-22

    Applicant: BOE Technology Group Co., Ltd.

    Inventor： Weixing Liu ,  Tieshi Wang ,  Zhiqiang Xu ,  Shengnan Li ,  Wanpeng Teng ,  Chunfang Zhang ,  Xiaolong Li ,  Wei Qin ,  Kai Guo ,  Kuanjun Peng

    IPC: G09G3/3258 ,  H01L27/32 ,  H01L51/50

    Abstract: The present disclosure provides a pixel circuit and a method for driving the same, and a display panel. The pixel circuit includes a driving sub-circuit and a light-emitting control sub-circuit. The driving sub-circuit is configured to transmit a first power voltage at a first power signal terminal to a second node. The light-emitting control sub-circuit is configured to: transmit a voltage at the second node and a second power voltage at the second power signal terminal to the first electrode of the first light-emitting element and the second electrode of the first light-emitting element respectively in a first period, to the first electrode of the second light-emitting element and the second electrode of the second light-emitting element respectively in a second period, and to the first electrode of the third light-emitting element and the second electrode of the third light-emitting element respectively in a third period.

    Pixel circuit, driving method thereof and display apparatus
    16.
    发明授权
    Pixel circuit, driving method thereof and display apparatus 有权

    公开(公告)号：US11138923B2

    公开(公告)日：2021-10-05

    申请号：US16891124

    申请日：2020-06-03

    Applicant: BOE Technology Group Co., Ltd.

    Inventor： Shengnan Li ,  Wei Qin ,  Tieshi Wang ,  Weixing Liu ,  Chunfang Zhang ,  Wanpeng Teng ,  Dongni Liu

    IPC: G09G3/32

    Abstract: A pixel circuit, a driving method thereof and a display apparatus are provided. The pixel circuit comprises a control module, a short-circuit protection module, a drive transistor and a light-emitting device, wherein the short-circuit protection module is used for providing a data voltage to a gate of the drive transistor in response to a gate signal; a second pole of the drive transistor is connected to a positive pole of the light-emitting device, and a negative pole of the light-emitting device receives a second power supply voltage; the short-circuit protection module is used for providing a third power supply voltage to the gate of the drive transistor to turn off the drive transistor in response to the data voltage provided to the gate of the drive transistor and the second power supply voltage provided to the positive pole of the light-emitting device.

    Pixel driving circuit, pixel driving method and display device
    17.
    发明授权
    Pixel driving circuit, pixel driving method and display device 有权

    公开(公告)号：US11024231B2

    公开(公告)日：2021-06-01

    申请号：US16631777

    申请日：2019-08-30

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Xueling Gao ,  Kuanjun Peng ,  Wei Qin ,  Wanpeng Teng

    IPC: G09G3/3258 ,  G09G3/3291

    Abstract: A pixel driving circuit is provided. The pixel driving circuit includes an initialization circuit, a driving circuit, and a first light-emitting control circuit. A first terminal of the driving circuit is coupled to a power voltage terminal, a second terminal of the driving circuit is coupled to a light-emitting element via the first light-emitting control circuit. The initialization circuit is configured to write an initialization voltage to a control terminal of the driving circuit under control of an initialization control signal input from an initialization control line, so that the driving circuit brings a connection between the first and second terminals into a conducting state under control of the control terminal. The first light-emitting control circuit is configured to bring a connection between the second terminal and the light-emitting element into a conducting state under control of a first light-emitting control signal input from a first light-emitting control line.

    Voltage compensation method, voltage compensation device, display device and computer-readable storage medium
    18.
    发明授权
    Voltage compensation method, voltage compensation device, display device and computer-readable storage medium 有权

    公开(公告)号：US10937368B2

    公开(公告)日：2021-03-02

    申请号：US16613273

    申请日：2019-03-21

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Jintao Peng ,  Kuanjun Peng ,  Wei Qin ,  Chengchung Yang ,  Wanpeng Teng ,  Zhiqiang Xu ,  Xueling Gao

    IPC: G09G3/3258

    Abstract: A voltage compensation method, a voltage compensation device, a display device and a computer-readable storage medium are provided. The voltage compensation method includes: determining a first voltage of a target pixel in a first image; determining a second voltage of the target pixel in a second image, where the second image is switched from the first image; determining a voltage compensation value based on the first voltage and the second voltage; an determining a transition voltage based on the voltage compensation value and the second voltage, and compensating the second voltage by the transition voltage; where a gray-level of the target pixel in the first image is greater than a gray-level of the target pixel in the second image, the transition voltage is a driving voltage of the target pixel between the first voltage and the second voltage.

    Testing method and testing apparatus for splicing screens
    19.
    发明授权
    Testing method and testing apparatus for splicing screens 有权

    公开(公告)号：US10334243B2

    公开(公告)日：2019-06-25

    申请号：US15122702

    申请日：2015-10-27

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Tieshi Wang ,  Saihua Chen ,  Xuefei Wang ,  Wanpeng Teng ,  Heliang Di ,  Zhihong Du ,  Shanshan Zhou

    IPC: G09G3/00 ,  H04N17/02 ,  H04N17/04

    Abstract: A testing method and a testing apparatus for splicing screens (1, 2, 3, 4) are provided. The method includes: outputting an image signal to a display screen, wherein the display screen includes a plurality of splicing screens (1, 2, 3, 4), the image signal includes a plurality of testing sub pictures, the testing sub pictures are arranged correspondingly to the splicing screens (1, 2, 3, 4) so as to enable the splicing screens (1, 2, 3, 4) to display the corresponding testing sub pictures, and the testing sub pictures include testing contents (5, 6, 7, 8, 9, 10, 11, 12); and testing the splicing screens (1, 2, 3, 4) through the testing contents (5, 6, 7, 8, 9, 10, 11, 12). Testing on the splicing screens (1, 2, 3, 4) is achieved, and a testing result can be used for regulating the splicing screens (1, 2, 3, 4), so that defects generated in the displaying process of the splicing screens (1, 2, 3, 4) are reduced.

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