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公开(公告)号：US20200160787A1
公开(公告)日：2020-05-21
申请号：US16456910
申请日：2019-06-28
发明人： Tieshi Wang , Xueling Gao , Zhiqiang Xu , Chengchung Yang , Haoran Liu
IPC分类号： G09G3/3258 , G09G3/3233 , G09G3/3266
摘要： 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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公开(公告)号：US10657894B2
公开(公告)日：2020-05-19
申请号：US16134026
申请日：2018-09-18
发明人： Kuanjun Peng , Xiangxiang Zou , Chengchung Yang
IPC分类号： G09G3/3208 , G09G3/3241 , G09G3/3233
摘要： Disclosed are a pixel circuit, a method for driving the same, a display panel, and a display device, and in the pixel circuit, a node reset sub-circuit resets a gate of a driver transistor in a first reset stage, a data writing sub-circuit writes a data signal, and compensates for drifting threshold voltage of the driver transistor, in a data writing stage, and a light-emission control sub-circuit connects a first voltage terminal with a light-emitting diode in a light emission stage.
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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
发明人： Chengchung Yang
IPC分类号： G09G3/3233 , G09G3/3266
CPC分类号： G09G3/3233 , G09G3/3266 , G09G2300/0426
摘要： 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
发明人： Tieshi Wang , Xueling Gao , Zhiqiang Xu , Chengchung Yang , Haoran Liu
IPC分类号： G09G3/3258 , G09G3/3233 , G09G3/3266
CPC分类号： G09G3/3258 , G09G3/3233 , G09G3/3266
摘要： 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
发明人： Chengchung Yang , Xueling Gao , Kuanjun Peng
IPC分类号： G09G3/3233
摘要： 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
发明人： Xueling GAO , Kuanjun Peng , Chengchung Yang , Xiangxiang Zou , Wei Qin
IPC分类号： G09G3/3233
摘要： 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：US11244611B2
公开(公告)日：2022-02-08
申请号：US16318321
申请日：2018-05-28
发明人： Chengchung Yang
IPC分类号： G09G3/3233 , G09G3/3266
摘要： 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：US11238788B2
公开(公告)日：2022-02-01
申请号：US16759575
申请日：2019-05-24
发明人： Wei Qin , Kuanjun Peng , Chengchung Yang , Xiaolong Li , Zhiqiang Xu
IPC分类号： G09G3/3225 , G09G3/3266
摘要： The present disclosure provides an OLED panel, a driving method thereof and a display device. The OLED panel has pixel units arranged in rows and columns, and each including an OLED device. The OLED panel includes regions arranged in column direction, and each including at least one row of pixel units and a cathode layer, the OLED devices in each region share the cathode layer therein, and the cathode layer of each region is disconnected from the cathode layer of any other region. The OLED panel includes a cathode voltage supply circuit configured to output a cathode voltage including an operating level to the cathode layer. The cathode voltage supply circuit is configured to start outputting the operating level to the cathode layer of at least one region at a time at least later than a time when all pixel units in the region receive a scan signal.
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公开(公告)号：US20210367003A1
公开(公告)日：2021-11-25
申请号：US16330561
申请日：2018-07-27
发明人： Tingting Zhou , Chengchung Yang , Bin Zhang
摘要： The present application provides a display substrate having a plurality of subpixel areas. The display substrate includes a base substrate; a first electrode layer on the base substrate and including a plurality of first electrodes respectively in the plurality of subpixel areas; an auxiliary electrode layer; and an insulating layer between the first electrode layer and the auxiliary electrode layer. The first electrode layer and the auxiliary electrode layer are spaced apart and insulated from each other by the insulating layer. An orthographic projection of each individual one of the plurality of first electrodes on the base substrate at least partially overlap with an orthographic projection of the auxiliary electrode layer on the base substrate. Each of the plurality of first electrodes is electrically connected to a pixel circuit configured to drive light emission in a respective one of the plurality of subpixel areas.
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公开(公告)号：US11030959B2
公开(公告)日：2021-06-08
申请号：US16650217
申请日：2018-09-17
发明人： Xueling Gao , Kuanjun Peng , Chengchung Yang , Xiangxiang Zou , Wei Qin
IPC分类号： G09G3/3291
摘要： A pixel circuit and a driving method thereof and a display device are provided. In the pixel circuit, a driving circuit is configured to control a driving current flowing through a first terminal and a second terminal of the driving circuit for driving a light emitter element to emit light; a data writing circuit is configured to write a data signal to a control terminal of the driving circuit in response to a scan signal; a first light emission control circuit is configured to apply a first voltage to the first terminal in response to a first light emission control signal; a first reset circuit is configured to apply a reset voltage to the control terminal in response to a first reset signal. The driving circuit is in a fixed bias state when the reset voltage and the first voltage are applied together to the driving circuit.
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