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公开(公告)号：US11798473B2
公开(公告)日：2023-10-24
申请号：US17309917
申请日：2020-09-28
发明人： Dongni Liu , Minghua Xuan , Haoliang Zheng , Li Xiao , Liang Chen , Zhenyu Zhang , Jiao Zhao , Hao Chen
IPC分类号： G09G3/3233 , G09G3/20
CPC分类号： G09G3/3233 , G09G3/2007 , G09G2300/0426 , G09G2300/0819 , G09G2300/0842 , G09G2300/0861 , G09G2310/08
摘要： The present disclosure provides a pixel driving circuit and a display panel. The pixel driving circuit includes: a data writing sub-circuit configured to transmit a data voltage signal to a first terminal of a driving sub-circuit in response to a first scanning signal; a threshold compensation sub-circuit configured to compensate for a threshold voltage of the driving sub-circuit in response to a second scanning signal; a storage sub-circuit configured to store the data voltage signal; the driving sub-circuit configured to provide a driving current for a light emitting device to be driven according to voltages of a first terminal and a control terminal of the driving sub-circuit; and a voltage maintaining sub-circuit configured to maintain the voltage of the control terminal of the driving sub-circuit when the voltage of the first terminal of the driving sub-circuit jumps.
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公开(公告)号：US11610549B2
公开(公告)日：2023-03-21
申请号：US17603686
申请日：2020-10-19
发明人： Han Yue , Dongni Liu
IPC分类号： G09G3/3258 , G09G3/3233
摘要： A pixel driving circuit includes a signal control sub-circuit and a time control sub-circuit. The signal control sub-circuit includes a first driving sub-circuit connected to a first node. The signal control sub-circuit is configured to: write at least a first data signal into the first node, and enable the first driving sub-circuit to output a driving signal according to the first data signal and a first power supply voltage signal. The time control sub-circuit includes a second driving sub-circuit including a first transistor connected to a second node and the signal control sub-circuit. The time control sub-circuit is configured to: transmit a second power supply voltage signal and a third power supply voltage signal to the second node in different periods, so as to control a turn-on time of the first transistor and transmit the driving signal to an element to be driven when the first transistor is turned on.
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公开(公告)号：US11538403B2
公开(公告)日：2022-12-27
申请号：US17476360
申请日：2021-09-15
发明人： Dongni Liu , Minghua Xuan , Qi Qi , Jing Liu
IPC分类号： G09G3/32
摘要： The present disclosure provides a pixel driving circuit and a display panel. The pixel driving circuit includes a driving module and a grayscale adjustment module. The driving module is configured to generate a first driving current corresponding to a first grayscale range under the control of a potential at a gate voltage end and a first power source voltage, and transmit the first driving current to a light-emitting element. The grayscale adjustment module is configured to adjust the driving module under the control of the first power source voltage and a first data voltage, so that the driving module generates a second driving current corresponding to a second grayscale range under the control of the potential at the gate voltage end and the first power source voltage, and transmits the second driving current to the light-emitting element.
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公开(公告)号：US11508289B2
公开(公告)日：2022-11-22
申请号：US16977220
申请日：2019-11-29
发明人： Minghua Xuan , Xiaochuan Chen , Dongni Liu
IPC分类号： G09G3/32 , G09G3/3233
摘要： The present disclosure provides a pixel driving circuit, a method of driving the same and a display device. The pixel driving circuit includes a light-emission time control sub-circuitry, a first energy storage sub-circuitry, a first resetting sub-circuitry, a first light-emission control sub-circuitry, a time control data write-in sub-circuitry and a data control sub-circuitry. The time control data write-in sub-circuitry controls a time control data line to be electrically connected to a second end of the first energy storage sub-circuitry under the control of a first gate driving signal. The light-emission time control sub-circuitry controls a first end of the light-emission time control sub-circuitry to be electrically connected to a second end of the light-emission time control sub-circuitry.
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公开(公告)号：US11450270B2
公开(公告)日：2022-09-20
申请号：US16484621
申请日：2019-01-25
发明人： Liang Chen , Lei Wang , Dongni Liu , Li Xiao , Minghua Xuan , Xiaochuan Chen , Shengji Yang , Pengcheng Lu , Detao Zhao , Ning Cong
IPC分类号： G09G3/3233 , G09G3/3275
摘要： A pixel circuit and a method of driving the same, and a display device. The pixel circuit includes a plurality of pixel compensation circuits, and each pixel compensation circuit can be connected to M light-emitting units located in the same column. Each light-emitting control signal terminal of the M light-emitting control signal terminals included in each light-emitting control signal terminal group may be connected to a pixel compensation circuit group (i.e., K rows of pixels compensation circuits).
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公开(公告)号：US11335224B2
公开(公告)日：2022-05-17
申请号：US17255529
申请日：2020-05-07
发明人： Dongni Liu , Minghua Xuan , Han Yue , Li Xiao , Liang Chen , Hao Chen
摘要： A pixel circuit, a driving method thereof, and a display device are provided. The pixel circuit includes: a light-emitting assembly including a plurality of light-emitting elements; a driving sub-circuit electrically coupled to the light-emitting assembly and configured to generate driving current for driving the light-emitting assembly; and a repair sub-circuit electrically coupled to the light-emitting assembly and configured to: receive a repair scanning signal (Gate_R, Gate_Ri) and a repair data signal (Data_R, Data_Ri), and provide the driving current to at least one light-emitting element capable of emitting light normally among the plurality of light-emitting elements under the control of the repair scanning signal (Gate_R, Gate_Ri) and the repair data signal (Data_R, Data_Ri).
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公开(公告)号：US11315480B2
公开(公告)日：2022-04-26
申请号：US16634332
申请日：2019-01-25
发明人： Dongni Liu
摘要： Provided are a pixel driving circuit, a driving method thereof, and display panel. The pixel driving circuit includes a current control circuit and a time control circuit, wherein the current control circuit is configured to receive a display data signal and control a magnitude of a driving current flowing through the current control circuit according to the display data signal; the time control circuit is configured to receive the driving current, and receive a time data signal, a first light-emitting control signal and a second light-emitting control signal, and control a flowing time period of the driving current according to the time data signal, the first light-emitting control signal and the second light-emitting control signal.
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8.发明授权公开(公告)号：US11244602B2
公开(公告)日：2022-02-08
申请号：US17086097
申请日：2020-10-30
发明人： Haoliang Zheng , Dongni Liu , Minghua Xuan , Zhenyu Zhang , Li Xiao , Liang Chen , Hao Chen , Guangliang Shang , Lijun Yuan , Xing Yao
IPC分类号： G09G3/32
摘要： A shift register includes an input sub-circuit, a control sub-circuit, an output sub-circuit and a reset sub-circuit. The input sub-circuit is configured to transmit an input signal from an input signal terminal to a pull-up node. The control sub-circuit is configured to transmit a clock signal from a clock signal terminal to the control node. The output sub-circuit is configured to transmit a second voltage signal from a second voltage signal terminal to a first output signal terminal, and to transmit a first voltage signal from a first voltage signal terminal to the first output signal terminal. The reset sub-circuit is configured to transmit the second voltage signal to the control node to reset the control node, and to transmit a third voltage signal from the third voltage signal terminal to the pull-up node to reset the pull-up node.
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公开(公告)号：US11217182B2
公开(公告)日：2022-01-04
申请号：US16338813
申请日：2018-10-18
发明人： Minghua Xuan , Lei Wang , Xiaochuan Chen , Dongni Liu , Detao Zhao
IPC分类号： G09G3/3291
摘要： The present disclosure provides a power source voltage application circuit, including a power source voltage output end, an energy storage sub-circuitry, a resetting sub-circuitry and an output control sub-circuitry. A first end of the energy storage sub-circuitry is connected to a first node, and a second end of the energy storage sub-circuitry is connected to a second node. The resetting sub-circuitry is connected to a resetting control end, a reference voltage input tend, the first node, the second node and an initial voltage input end respectively. The output control sub-circuitry is connected to an output control end, a first voltage input end, the first node, the second node and the power source voltage output end respectively.
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公开(公告)号：US20210408202A1
公开(公告)日：2021-12-30
申请号：US16769214
申请日：2019-07-31
发明人： Dongni Liu , Minghua Xuan , Liang Chen
IPC分类号： H01L27/32
摘要： An array substrate is provided. The array substrate includes a data line; a first voltage supply line; a second voltage supply line; and a pixel driving circuit. The pixel driving circuit includes one or more transistors in a first group and one or more transistors in a second group. A source electrode and a drain electrode of at least one transistor in the first group, the data line, the first voltage supply line, and the second voltage supply line are in a same layer. A source electrode and a drain electrode of at least one transistor in the second group are in a layer different from the first voltage supply line and the second voltage supply line.
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