公开(公告)号：US11011117B2

公开(公告)日：2021-05-18

申请号：US16317361

申请日：2018-04-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Chengchung Yang

IPC: G09G3/3266 ,  G09G3/36 ,  G11C19/28 ,  G09G3/3225

Abstract: The present disclosure provides a shift register, a drive method thereof, a drive control circuit, and a display apparatus, the shift register comprises an input sub-circuit (1), a first control sub-circuit (2), a second control sub-circuit (3), a third control sub-circuit (4), a node stabilization sub-circuit (5), a first output sub-circuit (6), and a second output sub-circuit (7).

公开(公告)号：US10971069B2

公开(公告)日：2021-04-06

申请号：US16616234

申请日：2019-04-18

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Tieshi Wang ,  Kuanjun Peng ,  Wei Qin ,  Chengchung Yang ,  Xueling Gao ,  Xiaolong Li ,  Zhiqiang Xu ,  Yan Wei ,  Shengnan Li

IPC: G09G3/3258

Abstract: A pixel driving circuit, a driving method and a display device are provided. The pixel driving circuit includes a driving unit, a capacitor unit, a data write-in unit connected to a corresponding gate line, a corresponding data line and the driving unit, a power source control unit connected to a first light-emitting control end, a power source signal input end and the driving unit, and a first light-emitting control unit connected to a second light-emitting control end, the power source signal input end and the driving unit and configured to, within a predetermined time period of a light-emitting stage, control the power source signal input end to be electrically connected to the driving unit under the control of the second light-emitting control end, stop the operation of the driving unit, and enable the light-emitting unit not to emit light.

公开(公告)号：US10832618B2

公开(公告)日：2020-11-10

申请号：US16151665

申请日：2018-10-04

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xueling Gao ,  Chengchung Yang

IPC: G09G3/3291 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3283 ,  G09G3/3233

Abstract: The present disclosure relates to a pixel circuit and a method of driving the pixel circuit, and a display device. A pixel circuit, including: a light emitting device; a driving circuit; a data writing circuit; a light emitting control circuit; a threshold compensation circuit; a first storage circuit; and a second storage circuit.

公开(公告)号：US10803806B2

公开(公告)日：2020-10-13

申请号：US16332783

申请日：2018-04-10

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xueling Gao ,  Chengchung Yang ,  Kuanjun Peng ,  Wei Qin ,  Xiangxiang Zou ,  Yang Yang

IPC: G09G3/3258 ,  G09G3/3233 ,  G09G3/3208

Abstract: Pixel circuit and display substrate and driving methods, and display apparatus are provided. Pixel circuit includes: driving resetting sub-circuit to input voltage at first initial voltage terminal to gate of driving transistor in driving sub-circuit under control of first resetting signal terminal; writing compensation sub-circuit to input data voltage to driving sub-circuit and compensate driving sub-circuit under control of scanning signal terminal in writing compensation phase, and input reference voltage output at data voltage terminal to driving sub-circuit in blanking phase, so driving transistor in On-Bias state; light-emitting resetting sub-circuit to input voltage at first initial voltage terminal to light-emitting device to reset light-emitting device under control of scanning signal terminal; and light-emitting enabling sub-circuit to provide voltage at first power supply voltage terminal to driving sub-circuit and connect driving sub-circuit to light-emitting device under control of enabling signal terminal; and driving sub-circuit to provide driving current to light-emitting device.

公开(公告)号：US10755636B2

公开(公告)日：2020-08-25

申请号：US16214887

申请日：2018-12-10

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Chengchung Yang ,  Xueling Gao ,  Kuanjun Peng

IPC: G09G3/32 ,  G09G3/3233 ,  G09G3/3258 ,  H01L27/32 ,  G09G3/3275 ,  G09G3/3266

Abstract: The present disclosure discloses a pixel circuit and a driving method thereof, a display substrate and a display device, the pixel circuit includes: an initialization sub-circuit, a writing compensation sub-circuit, a light-emitting enabling sub-circuit, a light-emitting device, and a driving sub-circuit, the light-emitting enabling sub-circuit is configured to couple the driving sub-circuit to the light-emitting device under control of an enabling signal terminal. The initialization sub-circuit is configured to input a voltage of an initial voltage terminal to a gate of a driving transistor in the driving sub-circuit under control of a reset signal terminal to initialize the driving sub-circuit. The writing compensation sub-circuit is configured to input, under control of a scanning signal terminal, a data voltage output from a data signal terminal to the driving sub-circuit to perform data compensation on the driving sub-circuit.

公开(公告)号：US20190371238A1

公开(公告)日：2019-12-05

申请号：US16390204

申请日：2019-04-22

Applicant: BOE Technology Group Co., Ltd.

Inventor： Xueling Gao ,  Jikai Yao ,  Kuanjun Peng ,  Chengchung Yang

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  H01L27/32

Abstract: A pixel circuit, a method for driving the same, a display panel and a display device are provided. The pixel circuit includes a driver transistor, a data writing sub-circuit, an initializing sub-circuit, a voltage prewriting sub-circuit, a threshold compensating sub-circuit, a first light-emission control sub-circuit, a second light-emission control sub-circuit, a capacitor, and a light-emitting element. The voltage prewriting sub-circuit pre-stores voltage of a light-emission supply voltage terminal into the capacitor before the light-emitting element emits light, the magnitude of light-emission current is dependent upon the voltage of the light-emission supply voltage terminal, and independent of the voltage of the first voltage source.

公开(公告)号：US20190103578A1

公开(公告)日：2019-04-04

申请号：US16117663

申请日：2018-08-30

Applicant: BOE Technology Group Co., Ltd.

Inventor： Chengchung Yang ,  Tingting Zhou

IPC: H01L51/52 ,  H01L27/32 ,  H01L21/8238

Abstract: Embodiments of the present disclosure provide an array substrate and a display apparatus having the array substrate. The array substrate includes: a plurality of pixel units which are arranged in an array and, which include a plurality of pixel electrodes arranged at intervals, respectively; a conductive layer disposed above or below two adjacent ones of the plurality of pixel electrodes, and configured such that when a preset electric potential is applied to the conductive layer, a first equivalent capacitance is formed between the conductive layer and a first one of the two adjacent pixel electrodes and a second equivalent capacitance is formed between the conductive layer and a second one of the two adjacent pixel electrodes.

公开(公告)号：US12272308B2

公开(公告)日：2025-04-08

申请号：US18421268

申请日：2024-01-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xueling Gao ,  Kuanjun Peng ,  Chengchung Yang ,  Xiangxiang Zou ,  Wei Qin

IPC: G09G3/3233 ,  H10K59/121

Abstract: A display substrate and a display device. The display substrate includes a pixel circuit in which the driving circuit controls a driving current 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：US20250063926A1

公开(公告)日：2025-02-20

申请号：US18933874

申请日：2024-10-31

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

Inventor： Weitao Ma ,  Lu Yang ,  Chengchung Yang

IPC: H10K59/80 ,  H10K59/122 ,  H10K59/38

Abstract: A display panel includes: a substrate; a plurality of sub-pixels; an encapsulation layer; a light shielding layer which is located on a side of the encapsulation layer away from the substrate and is provided with a plurality of openings corresponding to the plurality of sub-pixels respectively; a first color film layer including a plurality of basic units covering the plurality of openings in the light shielding layer respectively; and a second color film layer which is located on a side of the first color film layer away from the substrate and includes a plurality of overlay units covering an edge of at least one basic unit of the plurality of basic units respectively. A color of the basic unit is different form a color of the overlay unit covering the basic unit.

公开(公告)号：US12142212B2

公开(公告)日：2024-11-12

申请号：US18026637

申请日：2022-04-27

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

Inventor： Chengchung Yang ,  Yucheng Chan ,  Yangzhong Jing

IPC: G09G3/00 ,  G09G3/3233

Abstract: Provided are a pixel circuit, a drive method, and a display device. The pixel circuit includes a light-emitting element, a drive circuit, an energy storage circuit, a switch control circuit, a first initialization circuit, and a compensation control circuit. The switching control circuit controls a first voltage terminal to be connected to a second end of the energy storage circuit in a refresh frame and a first light-emitting phase and to control the first voltage terminal to be disconnected from the second end of the energy storage circuit in a first reset phase and a second reset phase under control of a switch control signal provided by the switch control terminal; a first initialization circuit writes a first initial voltage into the control terminal of the drive circuit under control of an initialization control signal in the first reset phase and the second reset phase.