公开(公告)号：US20230309341A1

公开(公告)日：2023-09-28

申请号：US18194348

申请日：2023-03-31

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xueling GAO ,  Kuanjun PENG ,  Chengchung YANG ,  Xiangxiang ZOU ,  Wei QIN

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2320/0257

Abstract: A display substrate and a display device. The display substrate includes a pixel circuit in which the driving circuit controls a driving current for driving the light emitter element to emit light; the first light emission control circuit applies a first voltage to a first terminal of the driving circuit in response to a first light emission control signal; the second light emission control circuit applies the driving current to the light emitter element in response to a second light emission control signal; the first reset circuit applies a first reset voltage to the control terminal of the driving circuit in response to a first reset signal; the first reset signal and the first light emission control signal are simultaneously turn-on signals during a period; the first light emission control line and the second light emission control line extend along a first direction and are arranged in a second direction.

公开(公告)号：US20230206832A1

公开(公告)日：2023-06-29

申请号：US16486201

申请日：2019-01-14

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xueling GAO ,  Chengchung YANG ,  Tieshi WANG ,  Jintao PENG

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0852 ,  G09G2300/0819 ,  G09G2310/08 ,  G09G2300/0426 ,  G09G2320/0233 ,  G09G2320/045 ,  G09G2320/041 ,  G09G2330/028

Abstract: A pixel circuit, a display panel, a display apparatus and a driving method. The pixel circuit includes a data signal writing module, a driving module, a threshold compensation transistor, a first power voltage writing module and a light-emitting module, wherein the driving module includes a driving transistor.

公开(公告)号：US20220376213A1

公开(公告)日：2022-11-24

申请号：US17755381

申请日：2021-05-12

Applicant: Chengdu BOE Optoelectronics Technology Co., Ltd. ,  BOE Technology Group Co., Ltd.

Inventor： Weitao MA ,  Lu YANG ,  Chengchung YANG ,  Xiangfei HE

IPC: H01L51/52 ,  H01L27/32

Abstract: A display panel and a display apparatus are provided. The display panel includes: a base substrate (1); a light-emitting layer (2); an encapsulation layer (3); a black matrix layer (4); and a color film layer (5).

公开(公告)号：US20220284861A1

公开(公告)日：2022-09-08

申请号：US17512208

申请日：2021-10-27

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

Inventor： Bo YANG ,  Chengchung YANG ,  Xiangfei HE ,  Ling SHI

IPC: G09G3/3266 ,  G09G3/3233 ,  G11C19/28

Abstract: Embodiments of the present disclosure provide a light emission control shift register and method thereof, a gate driving circuit, and a display device. An input circuit outputs a signal of a signal input terminal to a first node. A first control circuit outputs a voltage of a first voltage terminal to a second node. A second control circuit transmits the voltage of the first voltage terminal to a third node. A third control circuit transmits the voltage of the first voltage terminal to a fourth node, and the third control circuit can further transmit the voltage of the second voltage terminal to the fourth node. A fourth control circuit transmits the voltage of the first voltage terminal to a signal output terminal, and the fourth control circuit can further transmit the voltage of the second voltage terminal to the signal output terminal.

公开(公告)号：US20220139321A1

公开(公告)日：2022-05-05

申请号：US17573987

申请日：2022-01-12

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Chengchung YANG

IPC: G09G3/3233 ,  G09G3/3266

Abstract: The present disclosure relates to a pixel circuit and a method of driving the same, and a display device. A pixel circuit, including: a light emitting device; a driving sub-circuit configured to drive the light emitting device, the driving sub-circuit including a driving transistor configured to generate a driving current flowing through the light emitting device so that the light emitting device emits light; and a reset sub-circuit configured to reset a voltage between a gate electrode and a second electrode of the driving transistor.

公开(公告)号：US20210358405A1

公开(公告)日：2021-11-18

申请号：US16466418

申请日：2018-11-21

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Chengchung YANG ,  Xueling GAO ,  Kuanjun PENG

IPC: G09G3/3233

Abstract: A pixel circuit, a driving method thereof and a display device are provided. The pixel circuit includes a drive circuit, a data writing circuit, a compensation-and-reset circuit, and a storage circuit. The drive circuit includes a control terminal, a first terminal and a second terminal, and is configured to control a driving current for driving a light-emitting element to emit light; the data writing circuit is configured to write a data signal to the control terminal of the drive circuit in response to a scanning signal; the compensation-and-reset circuit is configured to apply the reset voltage to the control terminal of the drive circuit in response to a compensation signal; the storage circuit is configured to store the data signal that is wrote and a threshold voltage, and to couple and adjust a voltage of the control terminal of the drive circuit.

公开(公告)号：US20200273399A1

公开(公告)日：2020-08-27

申请号：US16759575

申请日：2019-05-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Wei QIN ,  Kuanjun PENG ,  Chengchung YANG ,  Xiaolong LI ,  Zhiqiang XU

IPC: G09G3/3225 ,  G09G3/3266

Abstract: The present disclosure provides an OLED panel, a driving method thereof and a display device. The OLED panel has pixel units arranged in rows and columns, and each including an OLED device. The OLED panel includes regions arranged in column direction, and each including at least one row of pixel units and a cathode layer, the OLED devices in each region share the cathode layer therein, and the cathode layer of each region is disconnected from the cathode layer of any other region. The OLED panel includes a cathode voltage supply circuit configured to output a cathode voltage including an operating level to the cathode layer. The cathode voltage supply circuit is configured to start outputting the operating level to the cathode layer of at least one region at a time at least later than a time when all pixel units in the region receive a scan signal.