公开(公告)号：US11563059B2

公开(公告)日：2023-01-24

申请号：US16330561

申请日：2018-07-27

Applicant: BOE Technology Group Co., Ltd.

Inventor： Tingting Zhou ,  Chengchung Yang ,  Bin Zhang

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

Abstract: The present application provides a display substrate having a plurality of subpixel areas. The display substrate includes a base substrate; a first electrode layer on the base substrate and including a plurality of first electrodes respectively in the plurality of subpixel areas; an auxiliary electrode layer; and an insulating layer between the first electrode layer and the auxiliary electrode layer. The first electrode layer and the auxiliary electrode layer are spaced apart and insulated from each other by the insulating layer. An orthographic projection of each individual one of the plurality of first electrodes on the base substrate at least partially overlap with an orthographic projection of the auxiliary electrode layer on the base substrate. Each of the plurality of first electrodes is electrically connected to a pixel circuit configured to drive light emission in a respective one of the plurality of subpixel areas.

公开(公告)号：US11341918B2

公开(公告)日：2022-05-24

申请号：US17234873

申请日：2021-04-20

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Tieshi Wang ,  Xueling Gao ,  Zhiqiang Xu ,  Chengchung Yang ,  Haoran Liu

IPC: G09G3/3258 ,  G09G3/3266 ,  G09G3/3233

Abstract: A method of driving a pixel includes providing a driving transistor having a first end connected to a first node, a control end connected to a second node, and a second connected to the third node end; a writing circuit connected a data signal end, a first scanning end and the first node; a first control circuit connected to a first power end, a light emitting control end and the first node; a reset circuit connected to a reference signal end, a second scanning end, and the second node; a compensation circuit connected between the second node and the third node; a second control circuit connected to the third node, a light emitting element, and the light emitting control end; and an energy storage circuit connected between the first power end and the second node. The second end of the light emitting element receives a second voltage signal.

公开(公告)号：US20210407433A1

公开(公告)日：2021-12-30

申请号：US16605794

申请日：2019-05-13

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Tieshi Wang ,  Zhiqiang Xu ,  Xueling Gao ,  Chengchung Yang

IPC: G09G3/3275 ,  G09G3/3258

Abstract: There are provided a pixel circuit and a method and apparatus for driving the same, an array substrate and a display apparatus. The pixel circuit includes: a driving sub-circuit and a switch sub-circuit coupled in series between a power signal terminal and a light emitting element, wherein the driving sub-circuit is configured to provide a driving signal to the light emitting element under control of a gate driving signal provided by a gate line, a data signal provided by a data line, and a power signal provided by a power signal terminal; and the switch sub-circuit is configured to control switch-on and switch-off of a signal path between the power signal terminal and the light emitting element under control of a switch signal provided by a switch signal terminal.

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.

公开(公告)号：US10755637B2

公开(公告)日：2020-08-25

申请号：US16251903

申请日：2019-01-18

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Chengchung Yang ,  Kuanjun Peng ,  Wei Qin ,  Zhiqiang Xu ,  Yan Wei

IPC: G09G3/3233

Abstract: A display method includes: determining whether there is a dynamic part in a current frame of picture, according to image data of a previous frame of picture and the current frame of picture; in a case where there is no dynamic part in the current frame of picture, in a display stage of the current frame of picture, providing a first light emitting control signal being always at an effective electric level state to each of pixel units of a display panel; in a case where there is a dynamic part in the current frame of picture, in the display stage of the current frame of picture, providing a second light emitting control signal, including a part at an effective electric level state and a part at a non-effective electric level state, to pixel units corresponding to at least a part of the dynamic part.

公开(公告)号：US20200160787A1

公开(公告)日：2020-05-21

申请号：US16456910

申请日：2019-06-28

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Tieshi Wang ,  Xueling Gao ,  Zhiqiang Xu ,  Chengchung Yang ,  Haoran Liu

IPC: G09G3/3258 ,  G09G3/3233 ,  G09G3/3266

Abstract: A circuit of driving pixel includes a driving transistor, having a first end connected to a first node, a control end connected to a second node, and a second connected to the third node end; a writing circuit, connected a data signal end, a first scanning end and the first node; a first control circuit, connected to a first power end, a light emitting control end and the first node; a reset circuit, connected to a reference signal end, a second scanning end and the second node; a compensation circuit, connected between the second node and the third node; a second control circuit, connected to the third node, a light emitting element and the light emitting control end; and an energy storage circuit, connected between the first power end and the second node. The second end of the light emitting element receives a second voltage signal.

公开(公告)号：US10657894B2

公开(公告)日：2020-05-19

申请号：US16134026

申请日：2018-09-18

Applicant: BOE Technology Group Co., Ltd.

Inventor： Kuanjun Peng ,  Xiangxiang Zou ,  Chengchung Yang

IPC: G09G3/3208 ,  G09G3/3241 ,  G09G3/3233

Abstract: Disclosed are a pixel circuit, a method for driving the same, a display panel, and a display device, and in the pixel circuit, a node reset sub-circuit resets a gate of a driver transistor in a first reset stage, a data writing sub-circuit writes a data signal, and compensates for drifting threshold voltage of the driver transistor, in a data writing stage, and a light-emission control sub-circuit connects a first voltage terminal with a light-emitting diode in a light emission stage.