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Patent Agency Ranking
公开(公告)号：US20210065624A1
公开(公告)日：2021-03-04
申请号：US16630305
申请日：2019-06-05
Applicant: BOE Technology Group Co., Ltd.
Inventor： Quanhu Li , Yongfu Diao , Wenkang Wang , Zhongliu Yang , Mingjing Yang
IPC: G09G3/3258 , G09G3/3291
Abstract: A pixel circuit, a method for driving a pixel circuit, and a display device are provided. The pixel circuit includes: a storage circuit, a data writing circuit, a light emitting driving circuit, and a compensation circuit. The data writing circuit is configured to write a data voltage to the storage circuit under control of a scanning control signal; the storage circuit is configured to store the data voltage and enable a stored data voltage to be available to the compensation circuit for a compensation operation; the compensation circuit is configured to maintain a compensation voltage based on the stored data voltage at a control terminal of the light emitting driving circuit under control of a compensation control signal; and the light emitting driving circuit configured to drive the light emitting element to emit light under control of the compensation voltage.
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公开(公告)号：US12069893B2
公开(公告)日：2024-08-20
申请号：US16977188
申请日：2019-11-29
Inventor： Xin Mou , Yongfu Diao
IPC: H10K59/121 , G06F3/038 , G09G3/20 , G09G3/30 , G09G3/3233 , H01L27/12 , H10K59/12 , H10K59/126 , H10K59/131 , H10K59/35 , H10K71/00
CPC classification number: H10K59/1213 , G09G3/2003 , G09G3/3233 , H10K59/1216 , H10K59/126 , H10K59/131 , H10K71/00 , G06F3/038 , G09G3/30 , G09G2300/0426 , G09G2300/0443 , G09G2310/061 , H01L27/1222 , H10K59/1201 , H10K59/352
Abstract: An array substrate and a manufacturing method therefor, an organic light emitting diode display device and a display substrate are provided. The array substrate includes: a base substrate and a first color sub-pixel and a second color sub-pixel on the base substrate. The first color sub-pixel includes a first driving transistor, the second color sub-pixel includes a second driving transistor, and a channel width-length ratio of the first driving transistor is greater than a channel width-length ratio of the second driving transistor.
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公开(公告)号：US11783782B2
公开(公告)日：2023-10-10
申请号：US17040111
申请日：2019-11-01
Inventor： Wenkang Wang , Yongfu Diao , Zhongliu Yang , Chenyu Chen
IPC: G09G3/3266 , G09G3/3233
CPC classification number: G09G3/3266 , G09G3/3233 , G09G2300/0408 , G09G2300/0426 , G09G2300/0819 , G09G2300/0852 , G09G2310/0213 , G09G2310/0281 , G09G2310/0286 , G09G2310/061 , G09G2310/08
Abstract: The present disclosure provides a display substrate, including a display area and a peripheral area, where N pixel unit groups are arranged in the display area, and each pixel unit group is provided with a gate line, a first reset signal line and a second reset signal line; a driving module is arranged in the peripheral area and includes at least two driving circuits, at least two operating signal line groups are further arranged in the peripheral area, the driving circuits and the operating signal line groups are alternately arranged the at least two driving circuits include a gate driving circuit and a reset driving circuit provided with N second signal output terminals the ith second signal output terminal is coupled to the second reset signal line configured for the ith pixel unit group and the first reset signal line configured for the (i+1)th pixel unit group.
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公开(公告)号：US20230274700A1
公开(公告)日：2023-08-31
申请号：US18124054
申请日：2023-03-21
Inventor： Xin MOU , Yongfu Diao
IPC: G09G3/3258
CPC classification number: G09G3/3258 , G09G2300/0452 , G09G2300/0842 , G09G2310/061 , G09G2300/0809 , G09G2300/0426 , G09G2320/0233
Abstract: A display substrate and a display device are provided. The display substrate includes a base substrate and sub-pixels on the base substrate, a sub-pixel includes an organic light emitting element and a pixel circuit, the organic light emitting element includes a first electrode, a light emitting layer and a second electrode which is electrically connected to the pixel circuit. The sub-pixels include first color sub-pixels, second color sub-pixels and third color sub-pixels, current efficiency of a first color sub-pixel is different from that of a second color sub-pixel. The display substrate includes a source-drain metal layer which includes a first power signal line, the display substrate includes a second power signal line and reset power signal lines, the reset power signal lines include a first reset power signal line and a second reset power signal line which are electrically connected to the pixel circuit.
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公开(公告)号：US11189228B2
公开(公告)日：2021-11-30
申请号：US16630305
申请日：2019-06-05
Applicant: BOE Technology Group Co., Ltd.
Inventor： Quanhu Li , Yongfu Diao , Wenkang Wang , Zhongliu Yang , Mingjing Yang
IPC: G09G3/3258 , G09G3/3291
Abstract: A pixel circuit, a method for driving a pixel circuit, and a display device are provided. The pixel circuit includes: a storage circuit, a data writing circuit, a light emitting driving circuit, and a compensation circuit. The data writing circuit is configured to write a data voltage to the storage circuit under control of a scanning control signal; the storage circuit is configured to store the data voltage and enable a stored data voltage to be available to the compensation circuit for a compensation operation; the compensation circuit is configured to maintain a compensation voltage based on the stored data voltage at a control terminal of the light emitting driving circuit under control of a compensation control signal; and the light emitting driving circuit configured to drive the light emitting element to emit light under control of the compensation voltage.
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