公开(公告)号：US20250017089A1

公开(公告)日：2025-01-09

申请号：US18277779

申请日：2022-11-08

Applicant: BOE Technology Group Co., Ltd.

Inventor： Mingche HSIEH ,  Yu FENG ,  Wenxiu ZHU ,  Renrong GAI

IPC: H10K59/80 ,  H10K59/12 ,  H10K59/121 ,  H10K59/122 ,  H10K59/35 ,  H10K59/38

Abstract: A display panel includes a base substrate and a display structure layer disposed on the base substrate, wherein the display structure layer includes a plurality of sub-pixels. At least one sub-pixel includes: a pixel circuit and a light emitting element electrically connected with the pixel circuit. The light emitting element includes a first light emitting unit and a second light emitting unit. A light emitting region of the first light emitting unit and a light emitting region of the second light emitting unit are isolated from each other. The pixel circuit is configured to drive at least one of the first light emitting unit and the second light emitting unit to emit light in the anti-peep display mode.

公开(公告)号：US20240233635A1

公开(公告)日：2024-07-11

申请号：US17914844

申请日：2021-09-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Li WANG ,  Yu FENG ,  Hao ZHANG

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0842 ,  G09G2310/061 ,  G09G2310/08 ,  G09G2320/0247

Abstract: The present disclosure provides a pixel driving circuit, a pixel driving method and a display panel, relating to a field of display technology. The pixel driving circuit includes a driving transistor; a storage capacitor connecting a first node and a second node; a data writing unit configured to output a data voltage to the second node in response to a first scan signal; a light emitting control unit configured to electrically communicate a third node and a fourth node in response to a light emitting control signal; a first reset unit configured to output a reference voltage to the second node in response to the light emitting control signal or a first reset signal; a second reset unit configured to output an initialization voltage to the first node in response to a second reset signal.

公开(公告)号：US20240212598A1

公开(公告)日：2024-06-27

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 ,  H10K59/121 ,  H10K59/126

CPC classification number: G09G3/3233 ,  G09G2300/0452 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0852 ,  G09G2320/0233 ,  G09G2320/0247 ,  G09G2320/045 ,  G09G2330/021 ,  H10K59/1213 ,  H10K59/1216 ,  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：US20240206266A1

公开(公告)日：2024-06-20

申请号：US18590203

申请日：2024-02-28

Applicant: BOE Technology Group Co., Ltd.

Inventor： Jiangnan LU ,  Guangliang SHANG ,  Can ZHENG ,  Yu FENG ,  Libin LIU ,  Jie ZHANG ,  Mei LI

IPC: H10K59/131 ,  H10K59/80

CPC classification number: H10K59/131 ,  H10K59/8051

Abstract: Provided is an organic light-emitting diode display substrate, including: a source/drain layer, a planarization layer and an anode layer which are laminated in sequence, wherein the source/drain layer includes at least one pair of first signal lines; the anode layer includes a common power line, wherein the common power line is provided with vent holes; overlapping areas between two first signal lines in each pair of the first signal lines and a projection pattern of the vent hole are equal, the overlapping area being greater than 0, wherein the projection pattern of the vent hole is a pattern of an orthographic projection of the vent hole in the common power line on the source/drain layer. A display panel and a display device are also provided.

公开(公告)号：US20240169904A1

公开(公告)日：2024-05-23

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: G09G3/3225 ,  H10K59/121

CPC classification number: G09G3/3225 ,  H10K59/1213 ,  G09G2300/0452 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0852 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0247 ,  G09G2320/045 ,  G09G2330/021

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：US20230018774A1

公开(公告)日：2023-01-19

申请号：US17626765

申请日：2021-03-10

Applicant: Ordos Yuansheng Optoelectronics Co., Ltd. ,  BOE Technology Group Co., Ltd.

Inventor： Xinguo WU ,  Fengguo WANG ,  Hong LIU ,  Yu FENG ,  Liang TIAN ,  Haidong WANG ,  Shicheng SONG

IPC: H01L27/12

Abstract: The present disclosure provides a display substrate, a manufacturing method thereof, and a display device. The display substrate includes a base substrate and a plurality of pixels arranged on the base substrate, each pixel includes a plurality of sub-pixels, and each sub-pixel includes a first active layer, a first gate insulation layer, a gate electrode, a second gate insulation layer, a second active layer, a first insulation layer, a source electrode and a drain electrode laminated one on another. The source electrode is connected with the first active layer through a via hole penetrating through the first insulation layer, the second gate insulation layer and the first gate insulation layer, and the source electrode and the drain electrode are connected with the second active layer through a via hole penetrating through the first insulation layer.

公开(公告)号：US20220327997A1

公开(公告)日：2022-10-13

申请号：US17415758

申请日：2020-12-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Libin LIU ,  Yu FENG ,  Shiming SHI

IPC: G09G3/3233

Abstract: The present disclosure relates to the field of display technology, and proposes a pixel driving circuit, a pixel structure, and a display panel. The pixel driving circuit includes a plurality of driving transistors. For each driving transistor the first terminal is connected to a first power terminal, the second terminal is connected to a first node, and the control terminal is connected to a second node, so as to input current to the first node under the effect of the voltage at the second node. The low pixel density area of the display panel can be provided with the above-mentioned pixel driving circuit, so that the brightness difference between the low pixel density area and the high pixel density area can be avoided.

公开(公告)号：US20220284854A1

公开(公告)日：2022-09-08

申请号：US17826437

申请日：2022-05-27

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Wenjing TAN ,  Kuo SUN ,  Yu FENG

IPC: G09G3/3225 ,  G09G3/20

Abstract: The pixel structure includes a plurality of first pixel units disposed in a first region and at least one second pixel unit disposed in a second region. A distribution density of the plurality of first pixel units is greater than that of the at least one second pixel unit. Each second pixel unit includes a first color sub-pixel, a second color sub-pixel, and at least two third color sub-pixels. In the second region, the at least one first color sub-pixel and the at least one second color sub-pixel are located in a same row, and the at least two third color sub-pixels are located in a same column. A straight line where geometrical centers of the at least two third color sub-pixels are located intersects with a straight line where geometrical centers of the at least one first color sub-pixel and the at least one second color sub-pixel are located.

公开(公告)号：US20220148512A1

公开(公告)日：2022-05-12

申请号：US17426949

申请日：2020-10-27

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Can ZHENG ,  Yu FENG ,  Guangliang SHANG ,  Libin LIU ,  Shiming SHI

IPC: G09G3/3266

Abstract: A gate driving unit, a gate driving circuit, a gate driving method, and a display device are provided. The gate driving unit includes a first output circuit and a second output circuit; the second output circuit comprises a first output sub-circuit; the first output circuit is respectively electrically connected to the first node, the second node and the first gate driving signal output end and is configured to control the first gate driving signal output end to output a first gate driving signal under the control of the potential of the first node and the potential of the second node; the first output sub-circuit is respectively electrically connected to the first node, the second gate driving signal output end and the first clock signal end, and is configured to control the second gate driving signal output end to be connected to the first clock signal end.

公开(公告)号：US20210035490A1

公开(公告)日：2021-02-04

申请号：US16096102

申请日：2018-01-15

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

Inventor： Yu FENG ,  Libin LIU

IPC: G09G3/32 ,  G09G3/20

Abstract: The present disclosure provides a display device, a pixel circuit and its control method, the circuit including: a resetting and charging circuit, for resetting a capacitor connected between a gate electrode of the driving transistor of the pixel circuit and an anode of a LED, and then charging the capacitor; a writing circuit, for writing a data signal to the gate electrode of the driving transistor; a driving circuit including the driving transistor, for driving the LED to emit light when the driving transistor receives the data signal; wherein, the driving transistor for driving the LED to emit light is an oxide TFT, and the other transistors in the pixel circuit are low temperature polysilicon (LTPS) TFTs.