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11.发明授权公开(公告)号：US11538417B2
公开(公告)日：2022-12-27
申请号：US17512208
申请日：2021-10-27
Inventor： Bo Yang , Chengchung Yang , Xiangfei He , Ling Shi
IPC: G09G3/3266 , G09G3/3233 , G11C19/28
Abstract: Embodiments of the present disclosure provide a light emission control shift register and method thereof, a gate driving circuit, and a display device. An input circuit outputs a signal of a signal input terminal to a first node. A first control circuit outputs a voltage of a first voltage terminal to a second node. A second control circuit transmits the voltage of the first voltage terminal to a third node. A third control circuit transmits the voltage of the first voltage terminal to a fourth node, and the third control circuit can further transmit the voltage of the second voltage terminal to the fourth node. A fourth control circuit transmits the voltage of the first voltage terminal to a signal output terminal, and the fourth control circuit can further transmit the voltage of the second voltage terminal to the signal output terminal.
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公开(公告)号：US11348524B2
公开(公告)日：2022-05-31
申请号：US17327937
申请日：2021-05-24
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xueling Gao , Kuanjun Peng , Chengchung Yang , Xiangxiang Zou , Wei Qin
IPC: G09G3/3233
Abstract: A display substrate and a display device. The display substrate includes a pixel circuit in which the driving circuit controls a driving current for driving the light emitter element to emit light; the first light emission control circuit applies a first voltage to a first terminal of the driving circuit in response to a first light emission control signal; the second light emission control circuit applies the driving current to the light emitter element in response to a second light emission control signal; the first reset circuit applies a first reset voltage to the control terminal of the driving circuit in response to a first reset signal; the first reset signal and the first light emission control signal are simultaneously turn-on signals during a period; the first light emission control line and the second light emission control line extend along a first direction and are arranged in a second direction.
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公开(公告)号：US10991306B2
公开(公告)日：2021-04-27
申请号：US16456910
申请日：2019-06-28
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Tieshi Wang , Xueling Gao , Zhiqiang Xu , Chengchung Yang , Haoran Liu
IPC: G09G3/3258 , G09G3/3233 , G09G3/3266
Abstract: A circuit of driving pixel includes a driving transistor, having a first end connected to a first node, a control end connected to a second node, and a second connected to the third node end; a writing circuit, connected a data signal end, a first scanning end and the first node; a first control circuit, connected to a first power end, a light emitting control end and the first node; a reset circuit, connected to a reference signal end, a second scanning end and the second node; a compensation circuit, connected between the second node and the third node; a second control circuit, connected to the third node, a light emitting element and the light emitting control end; and an energy storage circuit, connected between the first power end and the second node. The second end of the light emitting element receives a second voltage signal.
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14.发明授权公开(公告)号：US10971060B2
公开(公告)日：2021-04-06
申请号：US16614709
申请日：2019-04-16
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Kuanjun Peng , Chengchung Yang , Zhiqiang Xu
IPC: G09G3/3208
Abstract: A method of adjusting display brightness, a light-emission control circuit and a display device are provided. A method of adjusting display brightness is applied to an light-emission control circuit, where the light-emission control circuit is configured to generate an light-emission control signal configured to control a light-emission of a display device. The method includes: adjusting, in the case that a display brightness of the display device is not within a predetermined brightness range, a duty ratio of the light-emission control signal, to enable the display brightness of the display device to fall into the predetermined brightness range.
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15.发明申请公开(公告)号：US20200184922A1
公开(公告)日：2020-06-11
申请号：US16623036
申请日：2019-03-19
Applicant: BOE Technology Group Co., Ltd.
Inventor： Chengchung Yang
Abstract: A shift register unit includes: an input circuit, configured to communicate an input terminal with a first node; an output control circuit, configured to provide a second clock signal for a second node when the first node is at a second level, and provide a first level for the second node when the first clock signal is at the second level; a reset control circuit, configured to provide the first level for the third node when the second clock signal and the first node are both at the second level, and provide the second level for the third node when the first clock signal is at the second level; and an output circuit, configured to provide the second level for an output terminal when the second node is at the second level, and provide the first level for the output terminal when the third node is at the second level.
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Patent Agency Ranking
公开(公告)号：US12225805B2
公开(公告)日：2025-02-11
申请号：US17754056
申请日：2021-03-26
Inventor： Weitao Ma , Lu Yang , Chengchung Yang
IPC: H10K59/80 , H10K59/122 , H10K59/38
Abstract: A display panel includes: a substrate; a plurality of sub-pixels; an encapsulation layer; a light shielding layer which is located on a side of the encapsulation layer away from the substrate and is provided with a plurality of openings corresponding to the plurality of sub-pixels respectively; a first color film layer including a plurality of basic units covering the plurality of openings in the light shielding layer respectively; and a second color film layer which is located on a side of the first color film layer away from the substrate and includes a plurality of overlay units covering an edge of at least one basic unit of the plurality of basic units respectively. A color of the basic unit is different form a color of the overlay unit covering the basic unit.
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公开(公告)号：US11984081B2
公开(公告)日：2024-05-14
申请号：US18150092
申请日：2023-01-04
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Chengchung Yang
IPC: G09G3/3233 , G09G3/3266
CPC classification number: G09G3/3233 , G09G3/3266 , G09G2300/0426
Abstract: The present disclosure relates to a pixel circuit and a method of driving the same, and a display device. A pixel circuit, including: a light emitting device; a driving sub-circuit configured to drive the light emitting device, the driving sub-circuit including a driving transistor configured to generate a driving current flowing through the light emitting device so that the light emitting device emits light; and a reset sub-circuit configured to reset a voltage between a gate electrode and a second electrode of the driving transistor.
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公开(公告)号：US11651737B2
公开(公告)日：2023-05-16
申请号：US17726875
申请日：2022-04-22
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Tieshi Wang , Xueling Gao , Zhiqiang Xu , Chengchung Yang , Haoran Liu
IPC: G09G3/3258 , G09G3/3233 , G09G3/3266
CPC classification number: G09G3/3258 , G09G3/3233 , G09G3/3266
Abstract: A circuit for driving a pixel includes a driving transistor having a first end connected to a first node, a control end connected to a second node, and a second end connected to a third node; a writing circuit connected to a first scanning signal and the first node and configured to transmit a data signal to the first node; a reset circuit connected to a second scanning signal and configured to transmit a reference signal to the second node; a compensation circuit connected to a compensation control signal and configured to put through a connection between the second end and the control end of the driving transistor in response to the compensation control signal, wherein the compensation control signal is different from the first scanning signal and the second scanning signal; and an energy storage circuit connected between a first power end and the second node.
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公开(公告)号：US11620942B2
公开(公告)日：2023-04-04
申请号：US16466418
申请日：2018-11-21
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Chengchung Yang , Xueling Gao , Kuanjun Peng
IPC: G09G3/3233
Abstract: A pixel circuit, a driving method thereof and a display device are provided. The pixel circuit includes a drive circuit, a data writing circuit, a compensation-and-reset circuit, and a storage circuit. The drive circuit includes a control terminal, a first terminal and a second terminal, and is configured to control a driving current for driving a light-emitting element to emit light; the data writing circuit is configured to write a data signal to the control terminal of the drive circuit in response to a scanning signal; the compensation-and-reset circuit is configured to apply the reset voltage to the control terminal of the drive circuit in response to a compensation signal; the storage circuit is configured to store the data signal that is wrote and a threshold voltage, and to couple and adjust a voltage of the control terminal of the drive circuit.
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公开(公告)号：US20220262310A1
公开(公告)日：2022-08-18
申请号：US17661318
申请日：2022-04-29
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xueling GAO , Kuanjun Peng , Chengchung Yang , Xiangxiang Zou , Wei Qin
IPC: G09G3/3233
Abstract: A display substrate and a display device. The display substrate includes a pixel circuit in which the driving circuit controls a driving current for driving the light emitter element to emit light; the first light emission control circuit applies a first voltage to a first terminal of the driving circuit in response to a first light emission control signal; the second light emission control circuit applies the driving current to the light emitter element in response to a second light emission control signal; the first reset circuit applies a first reset voltage to the control terminal of the driving circuit in response to a first reset signal; the first reset signal and the first light emission control signal are simultaneously turn-on signals during a period; the first light emission control line and the second light emission control line extend along a first direction and are arranged in a second direction.
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