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公开(公告)号：US12266317B2
公开(公告)日：2025-04-01
申请号：US18028026
申请日：2022-06-24
Inventor： Longfei Fan , Xiaochuan Chen , Pengcheng Lu
IPC: G09G3/3233 , G09G3/3291
Abstract: A pixel circuit, a driving method, and a display device. The pixel circuit includes a light-emitting element, a data writing circuit, a first control circuit, a driving circuit, a first power storage circuit, and a second power storage circuit. The first control circuit is configured to write a first initial voltage provided by a first initial voltage terminal into a first electrode of the light-emitting element under control of a first control signal provided by a first control terminal in a non-light-emitting phase. The driving circuit drives the light-emitting element to emit light under the control of a potential of a control terminal of the driving circuit. The present disclosure enhances the contrast in the non-light-emitting phase.
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Patent Agency Ranking
公开(公告)号：US12217705B2
公开(公告)日：2025-02-04
申请号：US18025521
申请日：2022-06-24
Inventor： Yaoxi Ma , Longfei Fan , Shanghong Jiang , Pengcheng Lu , Shengji Yang , Xiaochuan Chen , Dachao Li
IPC: G09G3/3291
Abstract: A driving circuit, a driving method, a display device, and a display control method are provided. The driving circuit includes multi-stage driving units and an on/off control circuit. Each of the driving units includes an input end and a driving signal output end, and each of the driving units is configured for outputting a corresponding driving signal via the driving signal output end according to an input signal provided by the input end. The input end of a first-stage driving unit is electrically connected to a start signal end. The on/off control circuit is electrically connected to an on/off control end and input ends of the multi-stage driving units, and configured for controlling the electric connection or electric disconnection of the input ends of the multi-stage driving units under the control of an on/off control signal provided by the on/off control end.
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公开(公告)号：US20240304153A1
公开(公告)日：2024-09-12
申请号：US18028026
申请日：2022-06-24
Inventor： Longfei Fan , Xiaochuan Chen , Pengcheng Lu
IPC: G09G3/3291 , G09G3/3233
CPC classification number: G09G3/3291 , G09G3/3233 , G09G2300/0819 , G09G2300/0852 , G09G2310/0251
Abstract: A pixel circuit, a driving method, and a display device. The pixel circuit includes a light-emitting element, a data writing circuit, a first control circuit, a driving circuit, a first power storage circuit, and a second power storage circuit. The first control circuit is configured to write a first initial voltage provided by a first initial voltage terminal into a first electrode of the light-emitting element under control of a first control signal provided by a first control terminal in a non-light-emitting phase. The driving circuit drives the light-emitting element to emit light under the control of a potential of a control terminal of the driving circuit. The present disclosure enhances the contrast in the non-light-emitting phase.
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公开(公告)号：US20240296802A1
公开(公告)日：2024-09-05
申请号：US18025521
申请日：2022-06-24
Inventor： Yaoxi Ma , Longfei Fan , Shanghong Jiang , Pengcheng Lu , Shengji Yang , Xiaochuan Chen , Dachao Li
IPC: G09G3/3291
CPC classification number: G09G3/3291 , G09G2300/0819 , G09G2300/0852 , G09G2310/0286
Abstract: A driving circuit, a driving method, a display device, and a display control method are provided. The driving circuit includes multi-stage driving units and an on/off control circuit. Each of the driving units includes an input end and a driving signal output end, and each of the driving units is configured for outputting a corresponding driving signal via the driving signal output end according to an input signal provided by the input end. The input end of a first-stage driving unit is electrically connected to a start signal end. The on/off control circuit is electrically connected to an on/off control end and input ends of the multi-stage driving units, and configured for controlling the electric connection or electric disconnection of the input ends of the multi-stage driving units under the control of an on/off control signal provided by the on/off control end.
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公开(公告)号：US20240265861A1
公开(公告)日：2024-08-08
申请号：US18021438
申请日：2022-06-29
Inventor： Yaoxi Ma , Longfei Fan , Pengcheng Lu , Shengji Yang , Xiaochuan Chen , Shanghong Jiang , Zhijian Zhu , Huaiyun Fan
IPC: G09G3/3225 , G11C19/28 , H10K59/131
CPC classification number: G09G3/3225 , G11C19/287 , H10K59/131 , G09G2300/0852 , G09G2310/08
Abstract: An array base plate includes a silicon substrate including multiple cascaded EOA units disposed at a peripheral area; the EOA units are electrically connected to a pixel driving unit; each EOA unit includes an input circuit transmitting a signal input by a light-emitting control signal input line to the EOA unit; a first control circuit transmitting a second power signal input by a second power signal line to a first node, and transmitting a first power signal input by a first power signal line to a second node; a second control circuit transmitting a second clock signal to a third node or transmitting the second power signal to the third node; a pull-up circuit transmitting the first power signal to a light-emitting control signal output line, and a pull-down circuit transmitting the second power signal to the light-emitting control signal output line.
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公开(公告)号：US11361708B2
公开(公告)日：2022-06-14
申请号：US17307996
申请日：2021-05-04
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Qian Wu , Longfei Fan
Abstract: A pixel circuit, a pixel driving method and a display device are provided in the present disclosure. The pixel circuit includes a light-emitting element, a pixel driving circuit, an on-off control circuit and a light-emission time control circuit. A control terminal of the on-off control circuit is electrically coupled to the light-emission time control circuit, and the on-off control circuit is configured to control a driving current output terminal to be coupled to, or decoupled from, the light-emitting element under the control of a potential at the control terminal of the on-off control circuit. The light-emission time control circuit is configured to control an nth light-emission time control signal output terminal to be coupled to, or decoupled from, the control terminal of the on-off control circuit in accordance with an nth light-emission control data voltage under the control of a second gate driving signal. N is an integer larger than 1, and n is a positive integer smaller than or equal to N.
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