公开(公告)号：US11682349B2

公开(公告)日：2023-06-20

申请号：US17661318

申请日：2022-04-29

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：US11657759B2

公开(公告)日：2023-05-23

申请号：US17859159

申请日：2022-07-07

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xueling Gao

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0852 ,  G09G2300/0866 ,  G09G2310/061 ,  G09G2310/08

Abstract: A pixel circuit and a method of driving the same, and a display panel. The pixel circuit includes a drive circuit, a data writing circuit, a compensating circuit, a reset circuit and a first light emitting control circuit. The drive circuit is configured to control a drive current for driving a light emitting element to emit light; the data writing circuit is configured to write a data signal to the first terminal of the drive circuit; the compensating circuit is configured to compensate the drive circuit; the reset circuit is configured to apply a reset voltage to the control terminal of the drive circuit and the first terminal of the light emitting element; the first light emitting control circuit is configured to apply a first voltage of the first voltage terminal to the first terminal of the drive circuit.

公开(公告)号：US11547312B2

公开(公告)日：2023-01-10

申请号：US16415282

申请日：2019-05-17

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Tieshi Wang ,  Xueling Gao ,  Zhiqiang Xu

IPC: H04W12/33 ,  A61B5/024 ,  G02B6/42 ,  A61B5/00 ,  G04B47/06 ,  G04G21/02 ,  G06F1/16

Abstract: A smart watch and a method for measuring a pulse information are provided in the present disclosure. The smart watch includes a dial, a watchband, a blood vessel information collecting apparatus, and a processing apparatus. The watchband is connected with the dial. The blood vessel information collecting apparatus is disposed in the watchband and is configured to collect a blood vessel information from an inner side of a wrist of a user. The processing apparatus is connected with the blood vessel information collecting apparatus and is configured to receive and process the blood vessel information to obtain the pulse information of the user.

公开(公告)号：US11386838B2

公开(公告)日：2022-07-12

申请号：US16342035

申请日：2018-09-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xueling Gao

IPC: G09G3/3233

Abstract: A pixel circuit and a method of driving the same, and a display panel. The pixel circuit includes a drive circuit, a data writing circuit, a compensating circuit, a reset circuit and a first light emitting control circuit. The drive circuit is configured to control a drive current for driving a light emitting element to emit light; the data writing circuit is configured to write a data signal to the first terminal of the drive circuit; the compensating circuit is configured to compensate the drive circuit; the reset circuit is configured to apply a reset voltage to the control terminal of the drive circuit and the first terminal of the light emitting element; the first light emitting control circuit is configured to apply a first voltage of the first voltage terminal to the first terminal of the drive circuit.

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：US11231595B2

公开(公告)日：2022-01-25

申请号：US16442975

申请日：2019-06-17

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiaolong Li ,  Wei Qin ,  Kuanjun Peng ,  Xueling Gao ,  Fangzhen Zhang ,  Jintao Peng ,  Jinqian Wang ,  Miaomiao Yang ,  Shuang Sun ,  Chunfang Zhang ,  Shengnan Li

IPC: G02B30/56 ,  G02B30/25 ,  G02B5/124

Abstract: A semi-transparent semi-retroreflective film and an air display device are provided. The air display device includes: a first polarizer and a second polarizer assembled with each other to form a cell; a semi-transparent semi-reflective structure and a semi-transparent semi-retroreflective film disposed between the first polarizer and the second polarizer; a first ¼ wave plate disposed at a side of the air display device adjacent to the first polarizer; and a second ¼ wave plate disposed between the semi-transparent semi-reflective structure and the semi-transparent semi-retroreflective film. The air display device is configured such that polarized light incident from the first polarizer, after being processed by an internal optical path of the air display device, exits from the second polarizer to form an air image at a side of the air display device away from the first polarizer.

公开(公告)号：US11217175B2

公开(公告)日：2022-01-04

申请号：US16772796

申请日：2019-12-09

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Wanpeng Teng ,  Xueling Gao

IPC: G09G3/3258 ,  G09G3/3233

Abstract: A pixel-driving circuit includes: a write-compensation sub-circuit coupled to a signal scanning terminal, a data terminal and a driving sub-circuit, and configured to, controlled with voltage from the signal scanning terminal, provide voltages of the data terminal to the driving sub-circuit for compensation; the light-emission control sub-circuit is coupled with the light-emission terminal, the first power source terminal and the driving sub-circuit and configured to provide voltages of the first power source terminal to the first terminal of the driving transistor controlled with voltage from the light-emission control terminal; the reset sub-circuit is coupled with the reset signal terminal, the initial voltage terminal, and the driving sub-circuit and to provide voltages of the initial voltage terminal to the gate of the driving transistor controlled with voltage from the reset signal terminal, causing the driving transistor to be in ON and OFF states respectively during the first and second initialization phases.

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：US11024231B2

公开(公告)日：2021-06-01

申请号：US16631777

申请日：2019-08-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xueling Gao ,  Kuanjun Peng ,  Wei Qin ,  Wanpeng Teng

IPC: G09G3/3258 ,  G09G3/3291

Abstract: A pixel driving circuit is provided. The pixel driving circuit includes an initialization circuit, a driving circuit, and a first light-emitting control circuit. A first terminal of the driving circuit is coupled to a power voltage terminal, a second terminal of the driving circuit is coupled to a light-emitting element via the first light-emitting control circuit. The initialization circuit is configured to write an initialization voltage to a control terminal of the driving circuit under control of an initialization control signal input from an initialization control line, so that the driving circuit brings a connection between the first and second terminals into a conducting state under control of the control terminal. The first light-emitting control circuit is configured to bring a connection between the second terminal and the light-emitting element into a conducting state under control of a first light-emitting control signal input from a first light-emitting control line.

公开(公告)号：US10962825B2

公开(公告)日：2021-03-30

申请号：US16429841

申请日：2019-06-03

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Wei Qin ,  Kuanjun Peng ,  Xiaolong Li ,  Tieshi Wang ,  Xueling Gao ,  Jintao Peng ,  Shengnan Li

IPC: G02F1/1335 ,  G02F1/1337 ,  G02F1/1343

Abstract: A display panel is provided, including an organic electroluminescent device including an anode layer, a liquid crystal cell on a light exit side of the organic electroluminescent device. The liquid crystal cell includes a liquid crystal layer, a linear polarizer on a side of the liquid crystal cell facing away from the organic electroluminescent device and configured to convert ambient light into a first polarized light, and an electrode assembly configured to control deflection of liquid crystal molecules in the liquid crystal layer to convert reflected light from the anode layer into a second polarized light. A second polarization direction of the second polarized light is different from a first polarization direction of the first polarized light. The display panel may decrease the intensity of reflected light perceived by the user when viewing the displayed image in an ambient environment.