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    Pixel circuit and driving method thereof, array substrate and display apparatus
    3.
    发明授权
    Pixel circuit and driving method thereof, array substrate and display apparatus 有权

    公开(公告)号：US11615747B2

    公开(公告)日：2023-03-28

    申请号：US16956200

    申请日：2019-08-14

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Can Wang ,  Han Yue ,  Can Zhang ,  Minghua Xuan ,  Ming Yang

    IPC: G09G3/3241

    Abstract: Disclosed are a pixel circuit and a driving method thereof, an array substrate and a display apparatus. The pixel circuit includes a pixel sub-circuit. The pixel sub-circuit includes a first adjusting circuit and a second adjusting circuit. The first adjusting circuit is configured to receive a first data signal and a light emitting control signal to control a magnitude of a driving current used for driving a light emitting element to emit light; the second adjusting circuit is configured to receive a second data signal and a time control signal to control a time duration in which the driving current is applied to the light emitting element; and the time control signal changes within a time period during which the light emitting control signal allows the driving current to be generated. The pixel circuit can control the time duration in which the driving current is applied to the light emitting element, so that the light emitting element can realize display of various grayscales by controlling the light emitting time of the light emitting element, on the premise that the light emitting element operates at a relatively high current density.

    Pixel driving circuit, pixel driving method and display device
    4.
    发明授权
    Pixel driving circuit, pixel driving method and display device 有权

    公开(公告)号：US11341898B2

    公开(公告)日：2022-05-24

    申请号：US16605384

    申请日：2019-03-26

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Han Yue ,  Minghua Xuan ,  Ning Cong ,  Xiaochuan Chen ,  Can Zhang ,  Can Wang ,  Ming Yang

    IPC: G09G3/32

    Abstract: A pixel driving circuit, a pixel driving method and a display device are provided. The pixel driving circuit includes a pixel sub-circuit and a power supply control sub-circuit, the pixel sub-circuit includes a first connection terminal, a second connection terminal and a light-emitting element, and is configured to respectively receive a first voltage and a second voltage to drive the light-emitting element to emit light. The power supply control sub-circuit is configured to, in a first state, control the first power supply terminal to provide the first voltage to the first connection terminal of the pixel sub-circuit, control the second power supply terminal to provide the second voltage to the second connection terminal of the pixel sub-circuit, and store energy; and in a second state, release the energy to the first connection terminal and the second connection terminal of the pixel sub-circuit to drive the light-emitting element to emit light.

    Pixel driving circuit, pixel driving method, display panel and display device
    6.
    发明授权
    Pixel driving circuit, pixel driving method, display panel and display device 有权

    公开(公告)号：US11195463B2

    公开(公告)日：2021-12-07

    申请号：US16839590

    申请日：2020-04-03

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Han Yue ,  Minghua Xuan ,  Can Zhang ,  Can Wang ,  Ning Cong ,  Xiaochuan Chen

    IPC: G09G3/325 ,  G09G3/3291 ,  G09G3/36

    Abstract: A pixel driving circuit includes a current control circuit and a time control circuit, the current control circuit controls to generate a driving current, and outputs the driving current through a driving current output terminal, the time control circuit includes a first data writing-in circuit and a driving time control circuit. The first data writing-in circuit writes a first data voltage provided by a first data line to the driving time control circuit under the control of a first gate driving signal provided by a first gate line. The driving time control circuit is connected to a reference voltage terminal, the current control circuit, the first data writing-in circuit, and a light emitting element, and controls a light emitting time period of the light emitting element based on the reference voltage and the first data voltage, the reference voltage terminal is used to provide the reference voltage.

    Display substrate and repairing method thereof, and display device
    8.
    发明授权
    Display substrate and repairing method thereof, and display device 有权

    公开(公告)号：US11063067B2

    公开(公告)日：2021-07-13

    申请号：US16618291

    申请日：2019-05-16

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Detao Zhao ,  Li Xiao ,  Lei Wang ,  Can Zhang ,  Can Wang ,  Han Yue ,  Minghua Xuan ,  Xiaochuan Chen

    IPC: H01L27/12 ,  H01L27/32

    Abstract: The present disclosure provides a display substrate, a repairing method, and a display device, the display substrate includes a plurality of driving circuits, each of which is configured to drive a display element in each of at least one sub-pixel to display, an output terminal of each driving circuit is coupled to the display element in the sub-pixel driven by the driving circuit through a branch having a switching element, the display substrate further includes: at least one repair line, which is configured to be associated with at least two driving circuits and initially decoupled from an output terminal of at least one of the at least two driving circuits, and the repair line is couplable to the output terminals of the at least two driving circuits with which the repair line is associated in response to a failure of one of the at least two driving circuits.

    DISPLAY SUBSTRATE AND MANUFACTURING METHOD THEREFOR AND DISPLAY DEVICE THEREOF
    10.
    发明申请
    DISPLAY SUBSTRATE AND MANUFACTURING METHOD THEREFOR AND DISPLAY DEVICE THEREOF 有权

    公开(公告)号：US20210134767A1

    公开(公告)日：2021-05-06

    申请号：US16860119

    申请日：2020-04-28

    Applicant: BOE Technology Group Co., Ltd.

    Inventor： Can Wang ,  Jiao Zhao ,  Han Yue ,  Can Zhang ,  Minghua Xuan

    IPC: H01L25/075 ,  H01L27/12 ,  H01L33/62 ,  H01L33/60

    Abstract: Disclosed are a display substrate and a manufacturing method therefor and a display device thereof. The display substrate includes: a drive backplate, and a plurality of micro LEDs and a retaining wall structure on the drive backplate; wherein a center of a light-emitting layer in the micro LED deviates from a center of the micro LED; the retaining wall structure is of an annular shape; the retaining wall structure corresponds to at least one micro LED in the display substrate; and a center of a surrounding region of the retaining wall structure in the drive backplate is located within a circumscribing region of a region where a light-emitting layer of the at least one micro LED is located.

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