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    DISPLAYING BASE PLATE AND DISPLAYING DEVICE
    3.
    发明申请
    DISPLAYING BASE PLATE AND DISPLAYING DEVICE 有权

    公开(公告)号：US20250098485A1

    公开(公告)日：2025-03-20

    申请号：US18565294

    申请日：2023-05-29

    Applicant: Chengdu BOE Optoelectronics Technology Co., Ltd. ,  BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Ying Liu ,  Bo Zhang ,  Xin Jin ,  Lei Fan ,  Chunfang Fan ,  Fei Liu ,  Liangyun Li ,  Qinbo Ren ,  Yingchang Gao

    IPC: H10K59/80 ,  H10K59/40

    Abstract: The present application provides a displaying base plate and a displaying device, which relate to the technical field of displaying. The displaying base plate can effectively reduce the width of the non-displaying region, so as to realize a narrow border frame, and accordingly increase the screen-to-body ratio. The displaying base plate includes: a displaying region; and a non-displaying region surrounding the displaying region, wherein the non-displaying region includes a first dam region, the first dam region surrounds the displaying region; and the first dam region includes a dam, at least one blocking unit located at one side of the dam away from the displaying region, the dam and the blocking unit are disposed within at least a part of the first dam region, and the blocking unit is patterned.

    Circuit board, electronic component and display apparatus
    5.
    发明授权
    Circuit board, electronic component and display apparatus 有权

    公开(公告)号：US10779410B2

    公开(公告)日：2020-09-15

    申请号：US16329005

    申请日：2018-01-19

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

    Inventor： Lingguo Wang ,  Xin Wang ,  Ying Liu ,  Yaodong Wang ,  Bin Fan ,  Binbin Liu

    IPC: H05K1/11 ,  H05K3/34 ,  H05K1/02

    Abstract: The present disclosure provides a circuit board, an electrical component and a display apparatus. The circuit board includes a wiring pad which is divided into a plurality of sub-pads by bubble discharge paths, the bubble discharge paths intersect at a first point which is a geometric center of the wiring pad. By configuring bubble discharge paths with a shape of a straight line and as being intersected at the geometric center point of the wiring pad, the circuit board can discharge gas bubbles, generated when the wiring pad is soldered to a wiring terminal of other circuit board, from the geometric center point of the wiring pad to the edge thereof via the bubble discharge paths. Thus gas bubbles can be eliminated or reduced between the wiring pad and the wiring terminal when soldering, connection between the wiring pad and the wiring terminal can be more secure.

    Pixel circuit, driving method thereof, and display device
    7.
    发明授权
    Pixel circuit, driving method thereof, and display device 有权

    公开(公告)号：US10540926B2

    公开(公告)日：2020-01-21

    申请号：US16095892

    申请日：2018-04-17

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

    Inventor： Hao Wu ,  Hongjun Yu ,  Na An ,  Gang Ci ,  Baolei Guo ,  Xin Wang ,  Lingguo Wang ,  Ying Liu

    IPC: G09G3/30 ,  G09G3/3225 ,  G09G3/3266

    Abstract: A pixel circuit includes a light-emitting device, a reset circuit, a write circuit, a compensation circuit, a light emission control circuit, and a drive circuit. The compensation circuit is configured to selectively transfer an uncompensated reference voltage or a compensated reference voltage to a third node, the compensated reference voltage being determined by the uncompensated reference voltage and a compensation voltage, the compensation voltage being related to a rated value of a power supply voltage. The light emission control circuit is configured to transfer a voltage at the third node to a first node to cause a change in voltage at the second node. The drive circuit is configured to control a magnitude of a drive current flowing through the light-emitting device based on the voltage at the second node and the power supply voltage.

    AMOLED pixel driving circuit, method and display device
    9.
    发明授权
    AMOLED pixel driving circuit, method and display device 有权

    公开(公告)号：US10152916B2

    公开(公告)日：2018-12-11

    申请号：US14433598

    申请日：2014-08-27

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Ying Wang ,  Ying Liu

    IPC: G09G3/20 ,  G09G3/3216 ,  G09G3/3225 ,  G09G3/3275 ,  G09G3/3283

    Abstract: The present disclosure provides an AMOLED pixel driving circuit, method and a display device. The AMOLED pixel driving circuit is for driving an organic light-emitting diode (OLED) and includes: a charge storage unit configured to be charged in a data writing stage and be discharged in a pixel lighting stage to light up the OLED; a data writing unit configured to write a data current in the data writing stage; a light-emitting control unit configured to control to enable a connection between the charge storage unit and the OLED in the pixel lighting stage. The AMOLED pixel driving circuit further includes a current amplification unit configured to, in the data writing stage, amplify the data current and charge the charge storage unit with the amplified data current.

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