公开(公告)号：US10909920B2

公开(公告)日：2021-02-02

申请号：US16309203

申请日：2018-03-20

Applicant: BOE TECHNOLOGY GROUP CO., LTD. ,  ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.

Inventor： Jianchao Zhu ,  Lujiang Huangfu ,  Yunfei Li ,  Can Zheng ,  Libin Liu ,  Yipeng Chen

IPC: G09G3/3233 ,  G09G3/3266

Abstract: A pixel driving circuit and a driving method, and a display device are provided. The driving circuit includes: a first switching element, a second switching element, a third switching element, a fourth switching element, a fifth switching element, a driving transistor, a sixth switching element, a first storage capacitor and a second storage capacitor.

公开(公告)号：US10762833B2

公开(公告)日：2020-09-01

申请号：US16609255

申请日：2019-03-20

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Qiang Wang ,  Libin Liu

IPC: G09G3/32 ,  B06B1/06 ,  G06K9/00 ,  H01L27/32

Abstract: The present disclosure relates to the field of display technologies, and provides a display panel and a driving method thereof, and a display device. The display panel includes: an ultrasonic echo acquisition circuit and a light emitting circuit. The acquisition circuit includes a first circuit and an ultrasonic wave receiving sensor, wherein the first circuit has a first node coupled to the ultrasonic wave receiving sensor, a second node and a third node coupled to a scan signal terminal, a fourth node and a fifth node coupled to a control signal terminal, and a sixth node being an output terminal. The light emitting circuit includes a second circuit and a light emitting diode.

公开(公告)号：US20200258452A1

公开(公告)日：2020-08-13

申请号：US16642447

申请日：2019-03-19

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yu Feng ,  Libin Liu

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

Abstract: A pixel circuit and a method of driving the same, a display panel and a method of forming the same and a display device are provided. The pixel circuit includes: a light-emitting element, a data writing sub-circuit, a storage sub-circuit and a driving transistor, where the driving transistor is a double-gate transistor. The data writing sub-circuit is configured to switch on or switch off a connection between the data line and the top gate of the driving transistor under a control of the gate line. The storage sub-circuit is configured to control a potential of the top gate of the driving transistor; the bottom gate of the driving transistor is connected to a first voltage input end; the first electrode of the driving transistor is connected to a power voltage input end, the second electrode of the driving transistor is connected to a first electrode of the light-emitting element; a second electrode of the light-emitting element is connected to a second voltage input end.

公开(公告)号：US10453897B2

公开(公告)日：2019-10-22

申请号：US15310504

申请日：2016-03-28

Applicant: BOE Technology Group Co., Ltd.

Inventor： Long Wang ,  Libin Liu ,  Pan Li ,  Jiayang Zhao ,  Chun Jan Wang ,  Li Zhou

IPC: H01L27/28 ,  H01L27/32 ,  G06F3/041 ,  G06F3/042

Abstract: An OLED display substrate, a touch display panel and a display device are provided. The OLED display substrate has a base substrate and a display region, the display region includes: a plurality of first sub-regions arranged at intervals and second sub-regions located between the first sub-regions; at least one OLED light-emitting unit located in the first sub-regions; a plurality of optical sensing units located in the second sub-regions, and first drive electrode lines and first transmission electrode lines connected with the optical sensing units and intersecting with each other; wherein, the optical sensing unit includes a photosensitive sensor, and the photosensitive sensor is configured to generate an electric signal according to a light intensity change of a sensed touch point; and the first drive electrode line and the first transmission electrode line are configured to provide the electric signal to determine a position of the touch point.

公开(公告)号：US12236866B2

公开(公告)日：2025-02-25

申请号：US17788727

申请日：2021-07-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiyu Zhao ,  Libin Liu ,  Yu Feng ,  Li Wang ,  Yao Huang ,  Benlian Wang ,  Weiyun Huang ,  Rui Wang

IPC: G09G3/3233 ,  G09G3/3225 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/3291 ,  H10K59/121 ,  H10K59/126

Abstract: A pixel circuit, a driving method and a display device. The pixel circuit includes a driving circuit, a first initialization circuit and a reset circuit; the first initialization circuit configured to write a first initial voltage into the first end of the driving circuit under the control of an initialization control signal; the reset circuit is configured to write a reset voltage into the second end of the driving circuit or the first end of the driving circuit under the control of a second scan signal; the driving circuit is configured to control to connect the first end of the driving circuit and the second end of the driving circuit under the control of a potential of a control end of the driving circuit.

公开(公告)号：US12223906B2

公开(公告)日：2025-02-11

申请号：US17788725

申请日：2021-07-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Libin Liu ,  Shiming Shi ,  Xiyu Zhao ,  Yu Feng ,  Li Wang

IPC: G09G3/3258 ,  G09G3/3225 ,  H10K59/121

Abstract: A pixel circuit, a driving method and a display device. The pixel circuit includes a driving circuit, a first control circuit, a compensation control circuit and a first initialization circuit; the first control circuit is configured to control to connect the control end of the driving circuit and the connection node under the control of a first scan signal; the compensation control circuit is configured to control to connect the connection node and the first end of the driving circuit under the control of a second scan signal; the first initialization circuit is configured to write a first initialization voltage into the connection node under the control of an initialization control signal; the driving circuit is configured to control to connect the first end and a second end of the driving circuit under the control of a potential of the control end thereof.

公开(公告)号：US12142184B2

公开(公告)日：2024-11-12

申请号：US18336884

申请日：2023-06-16

Applicant: BOE Technology Group Co., Ltd.

Inventor： Yu Feng ,  Libin Liu

IPC: G02F1/1335 ,  G09G3/20 ,  G09G3/32 ,  H10K59/121 ,  H10K59/126 ,  H10K59/131 ,  H10K59/65

Abstract: Disclosed are a display panel and a display device. The display panel includes a base substrate, and a first display region and a second display region that are located on the base substrate, where the first display region includes a plurality of first sub-pixels and a plurality of transparent regions, the second display region includes a plurality of second sub-pixels, and a distribution density of the first sub-pixels is smaller that of the second sub-pixels; and an area occupied by the first sub-pixels is smaller than that occupied by the second sub-pixels.

公开(公告)号：US12118939B2

公开(公告)日：2024-10-15

申请号：US18273695

申请日：2022-07-11

Applicant: BOE Technology Group Co., Ltd.

Inventor： Yu Feng ,  Libin Liu ,  Tian Dong

IPC: G09G3/3233 ,  G09G3/3225 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/3291 ,  H10K59/121

CPC classification number: G09G3/3233 ,  G09G3/3225 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/3291 ,  H10K59/1213 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2310/061 ,  G09G2310/08 ,  G09G2320/0247 ,  G09G2320/045 ,  G09G2330/021

Abstract: A pixel circuit and a driving method therefor, an array substrate and a display device are provided. The pixel circuit includes a driving circuit, a data writing circuit, a first initialization circuit. The driving circuit is configured to control a driving current; the data writing circuit is configured to write a data signal into the control terminal of the driving circuit; the first initialization circuit is configured to apply a first initialization voltage to the control terminal of the driving circuit, and includes a first transistor; the data writing circuit includes a second transistor and the driving circuit includes a third transistor; semiconductor materials of active layers of both the first transistor and the second transistor have a smaller leakage current characteristic than a semiconductor material of a third active layer of the third transistor.

公开(公告)号：US12101979B2

公开(公告)日：2024-09-24

申请号：US17435363

申请日：2021-03-15

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jiangnan Lu ,  Libin Liu ,  Jie Zhang ,  Mei Li ,  Yuhan Qian ,  Shiming Shi

IPC: H10K59/12 ,  H10K50/813 ,  H10K50/824 ,  H10K59/131 ,  H10K71/00 ,  H10K59/35

CPC classification number: H10K59/1315 ,  H10K50/813 ,  H10K50/824 ,  H10K71/00 ,  H10K59/1201 ,  H10K59/351

Abstract: The display substrate includes: a substrate, an auxiliary cathode layer, a first insulating layer, an anode layer, a second insulating layer, and a cathode layer that are sequentially stacked on the substrate in a direction away from the substrate; the anode layer includes a plurality of anode patterns spaced apart from each other, and an anode spacing area is formed between adjacent anode patterns; an orthographic projection of the auxiliary cathode layer on the substrate and an orthographic projection of the cathode layer on the substrate have an auxiliary overlapping area, and the auxiliary cathode layer is electrically connected to the cathode layer through a connection via hole in the auxiliary overlapping area; an orthographic projection of the connection via hole on the substrate is located inside the orthographic projection of the anode spacing area on the substrate.

公开(公告)号：US12080726B2

公开(公告)日：2024-09-03

申请号：US17265742

申请日：2020-04-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xueyan Tian ,  Jianchao Zhu ,  Libin Liu ,  Liangjian Li ,  Caiyu Qu ,  Dengyun Chen ,  Ximeng Li

IPC: H01L27/12 ,  H01L27/02 ,  H10K59/131

CPC classification number: H01L27/1259 ,  H01L27/0292 ,  H01L27/124 ,  H10K59/131

Abstract: A glossy display panel, a manufacturing method thereof and a display device are provided. The glossy display panel includes a display area and a non-display area; wherein the non-display area includes a binding area, and the glossy display panel includes a first conductive pattern located on a base substrate and located in the binding area; a first insulating layer covering the first conductive pattern, wherein the first insulating layer is provided with a first via hole, and an orthographic projection of the first via hole onto the base substrate is located within an orthographic projection of the first conductive pattern onto the base substrate; a glossy reflection layer, wherein an orthographic projection of the glossy reflection layer onto the base substrate does not overlap with an orthographic projection of the binding area onto the base substrate; and a chip on film.