公开(公告)号：US20240209228A1

公开(公告)日：2024-06-27

申请号：US17794684

申请日：2021-08-20

Applicant: Beijing BOE Technology Development Co., Ltd. ,  BOE Technology Group Co., Ltd.

Inventor： Tieshi Wang

IPC: C09D11/38 ,  C09K11/02 ,  C09K11/06

CPC classification number: C09D11/38 ,  C09K11/02 ,  C09K11/06 ,  C09K2211/1022

Abstract: A quantum dot ink, a quantum dot film, a preparation method thereof and a display substrate are provided in the present disclosure, which relates to a technical field of displaying. The quantum dot ink includes: a first ink including at least a quantum dot body and a ligand coordinated on a surface of the quantum dot body, the ligand including an R1 group; and a second ink including at least a reactive compound, the reactive compound being configured for being capable of interacting with the R1 group and cause the quantum dot body to deposit to form a film. The quantum dot film prepared by the quantum dot ink has good film-forming uniformity, thus improving display effect of the display product prepared by the quantum dot film.

公开(公告)号：US20230403902A1

公开(公告)日：2023-12-14

申请号：US18238019

申请日：2023-08-25

Applicant: BOE Technology Group Co., Ltd.

Inventor： Zhiqiang Xu ,  Wei Qin ,  Weixing Liu ,  Kai Guo ,  Tieshi Wang

IPC: H10K59/35 ,  H01L27/12 ,  H10K59/12 ,  H10K71/00

CPC classification number: H10K59/353 ,  H01L27/124 ,  H10K59/12 ,  H10K59/351 ,  H10K71/00 ,  G09G3/2003

Abstract: A display panel includes a base substrate and a plurality of sub-pixel groups. The plurality of sub-pixel groups includes a first sub-pixel group and a second sub-pixel group. The first sub-pixel group includes two adjacent sub-pixels with a first interval therebetween, and the second sub-pixel group includes two adjacent sub-pixels with a second interval therebetween. The first interval is different from the second interval.

公开(公告)号：US11636818B2

公开(公告)日：2023-04-25

申请号：US17353841

申请日：2021-06-22

Applicant: BOE Technology Group Co., Ltd.

Inventor： Weixing Liu ,  Tieshi Wang ,  Wei Qin ,  Zhiqiang Xu ,  Chunfang Zhang

IPC: G09G3/36

Abstract: Provided are a display panel, a drive method thereof and a display apparatus. The display panel includes a plurality of scan signal lines, a plurality of data signal lines and a plurality of sub-pixels; at least one sub-pixel includes switch assembly and a display unit, wherein the switch assembly at least includes a control terminal, an input terminal and an output terminal, wherein the input terminal is connected to the data signal line, the output terminal is connected to the display unit, and the control terminal or the input terminal is connected to the scan signal line; the display panel further includes at least one switch control line, which is connected to the control terminal of the switch assembly, and the switch control line is configured to control the input terminal and the output terminal of the switch assembly to be turned on or off.

公开(公告)号：US11373602B2

公开(公告)日：2022-06-28

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 ,  G09G3/3233

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：US20220068206A1

公开(公告)日：2022-03-03

申请号：US17213557

申请日：2021-03-26

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Weixing Liu ,  Zhiqiang Xu ,  Tieshi Wang ,  Wei Qin ,  Wanpeng Teng

IPC: G09G3/3258 ,  G09G3/3241

Abstract: A pixel circuit, a pixel driving method, and a display device are provided. The pixel circuit includes a light emitting element, a first voltage control circuit, a second voltage control circuit, a driving circuit, a first energy storage circuit, a data writing circuit, and a reset circuit. The first voltage control circuit includes a first control transistor, the driving circuit includes a driving transistor, and a difference between a threshold voltage of the first control transistor and a threshold voltage of the driving transistor is within a first range. The first voltage control circuit controls a potential of a first control node under control of a reset control signal; and the second voltage control circuit controls a potential of a second control node under control of the potential of the first control node.

公开(公告)号：US11250782B1

公开(公告)日：2022-02-15

申请号：US17213557

申请日：2021-03-26

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Weixing Liu ,  Zhiqiang Xu ,  Tieshi Wang ,  Wei Qin ,  Wanpeng Teng

IPC: G09G3/3258 ,  G09G3/3241

Abstract: A pixel circuit, a pixel driving method, and a display device are provided. The pixel circuit includes a light emitting element, a first voltage control circuit, a second voltage control circuit, a driving circuit, a first energy storage circuit, a data writing circuit, and a reset circuit. The first voltage control circuit includes a first control transistor, the driving circuit includes a driving transistor, and a difference between a threshold voltage of the first control transistor and a threshold voltage of the driving transistor is within a first range. The first voltage control circuit controls a potential of a first control node under control of a reset control signal; and the second voltage control circuit controls a potential of a second control node under control of the potential of the first control node.

公开(公告)号：US11250781B2

公开(公告)日：2022-02-15

申请号：US16829407

申请日：2020-03-25

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Wei Qin ,  Zhiqiang Xu ,  Xiaolong Li ,  Tieshi Wang ,  Weixing Liu ,  Kai Guo ,  Jintao Peng ,  Yanan Niu ,  Kuanjun Peng

IPC: G09G3/3258 ,  G06F3/044 ,  G06F3/041 ,  G06K9/00 ,  G09G3/3291

Abstract: A pixel circuit includes a sensing circuit, a gray-scale control circuit and a light-emitting switch circuit; the sensing circuit is configured to charge and discharge a sensing capacitor when a sensing capacitor is formed by a touch object and an anode layer of OLED; the gray-scale control circuit is configured to control the light-emitting intensity of the OLED; the light-emitting switch circuit is configured to control the OLED to emit light.

公开(公告)号：US11238803B2

公开(公告)日：2022-02-01

申请号：US17271776

申请日：2020-07-22

Applicant: BOE Technology Group Co., Ltd.

Inventor： Weixing Liu ,  Tieshi Wang ,  Zhiqiang Xu ,  Shengnan Li ,  Wanpeng Teng ,  Chunfang Zhang ,  Xiaolong Li ,  Wei Qin ,  Kai Guo ,  Kuanjun Peng

IPC: G09G3/3258 ,  H01L27/32 ,  H01L51/50

Abstract: The present disclosure provides a pixel circuit and a method for driving the same, and a display panel. The pixel circuit includes a driving sub-circuit and a light-emitting control sub-circuit. The driving sub-circuit is configured to transmit a first power voltage at a first power signal terminal to a second node. The light-emitting control sub-circuit is configured to: transmit a voltage at the second node and a second power voltage at the second power signal terminal to the first electrode of the first light-emitting element and the second electrode of the first light-emitting element respectively in a first period, to the first electrode of the second light-emitting element and the second electrode of the second light-emitting element respectively in a second period, and to the first electrode of the third light-emitting element and the second electrode of the third light-emitting element respectively in a third period.

公开(公告)号：US11114061B2

公开(公告)日：2021-09-07

申请号：US16623609

申请日：2019-05-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: G09G5/10 ,  G09G3/3275

Abstract: The present disclosure relates to a light-emission control signal generating device and a display device. The light-emission control signal generating device includes: a state detection circuit configured to detect whether a current frame is a static frame or a dynamic frame and output an indication signal indicating the static frame or the dynamic frame; and a plurality of light emission control signal generation circuits; wherein the plurality of light emission control signal generation circuits are divided into a plurality of blocks, and individual blocks are input with different light emission enable signals based on the indication signal to generate light emission control signals.

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.