公开(公告)号：US20250140201A1

公开(公告)日：2025-05-01

申请号：US18692042

申请日：2022-09-27

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Libin Liu ,  Yu Feng ,  Shiming Shi ,  Dawei Wang ,  Haijun Qiu ,  Jingquan Wang ,  Xing Yao

IPC: G09G3/3266

Abstract: A display panel includes pixel circuits, first shift register(s), second shift register(s), third shift register(s), and fourth shift register(s). A pixel circuit includes a driving transistor, a bias sub-circuit, a data writing sub-circuit, a compensation sub-circuit, a leakage prevention sub-circuit, a reset sub-circuit, and a light-emission control sub-circuit. The bias sub-circuit is electrically connected to a first shift register, which transmits a first scanning signal to the bias sub-circuit. The data writing and compensation sub-circuits are electrically connected to a second shift register, which transmits a second scanning signal to the data writing and compensation sub-circuits. The leakage prevention sub-circuit is electrically connected to a third shift register, which transmits a third scanning signal to the leakage prevention sub-circuit. The light-emission control sub-circuit is electrically connected to a fourth shift register, which transmits a fourth scanning signal to the light-emission control sub-circuit.

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.

公开(公告)号：US20240215344A1

公开(公告)日：2024-06-27

申请号：US17788605

申请日：2021-08-30

Applicant: BOE Technology Group Co., Ltd.

Inventor： Yu Feng ,  Libin Liu ,  Jiangnan Lu

IPC: H10K59/131 ,  G09G3/32

CPC classification number: H10K59/131 ,  G09G3/32 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2320/0233 ,  G09G2320/0247

Abstract: An array substrate is provided. A respective pixel driving circuit of the array substrate includes a driving transistor, a storage capacitor, and a transistor having a gate electrode connected to a respective second gate line of a plurality of second gate lines, a first electrode connected to a first capacitor electrode of the storage capacitor, and a second electrode connected to a second electrode of a first reset transistor, the transistor being configured to receive a reset signal through the first reset transistor. An active layer of the driving transistor and an active layer of the transistor are spaced apart from each other by at least an insulating layer. The active layer of the driving transistor comprises a first semiconductor material. The active layer of the transistor comprises a second semiconductor material different from the first semiconductor material.

公开(公告)号：US12002425B2

公开(公告)日：2024-06-04

申请号：US18038690

申请日：2020-11-30

Applicant: BOE Technology Group Co., Ltd.

Inventor： Lujiang Huangfu ,  Li Wang ,  Jianchao Zhu ,  Libin Liu

IPC: G09G3/3233 ,  G09G3/3291

CPC classification number: G09G3/3233 ,  G09G3/3291 ,  G09G2300/0852 ,  G09G2310/061 ,  G09G2320/0247 ,  G09G2330/021

Abstract: Provided are a pixel circuit and a driving method therefor, and a display apparatus. The pixel circuit includes a drive transistor, a reset circuit, a data writing circuit, a storage capacitor circuit, a threshold value compensation circuit, a conduction control circuit, a light-emitting control circuit, and a light-emitting device; the conduction control circuit is configured to: conduct the threshold value compensation circuit with the gate of the drive transistor, and conduct the reset circuit with the gate of the drive transistor at the reset stage, the threshold value detecting stage and the data writing stage; and cut off a conducting state of the threshold value compensation circuit with the gate of the drive transistor, and cut off a conducting state of the reset circuit with the gate of the drive transistor at the driving stage; where the conduction control circuit includes an oxide semiconductor thin film transistor.

公开(公告)号：US20240177660A1

公开(公告)日：2024-05-30

申请号：US17789174

申请日：2021-09-30

Applicant: BOE Technology Group Co., Ltd.

Inventor： Lujiang Huangfu ,  Li Wang ,  Jianchao Zhu ,  Libin Liu ,  Yu Feng

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2320/0247

Abstract: A pixel driving circuit is provided. The pixel driving circuit includes a storage capacitor (Cst) having a first capacitor electrode (Ce1) and a second capacitor electrode (Ce2); a driving transistor (Td) configured to generate a driving current; and a switch (SW) configured to control connection or disconnection between a gate electrode of the driving transistor (Td) and the first capacitor electrode (Ce1).