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公开(公告)号：US20200286425A1
公开(公告)日：2020-09-10
申请号：US16879741
申请日：2020-05-20
Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.
Inventor： Qingjun LAI , Yihua ZHU
IPC: G09G3/3225
Abstract: Provided are a pixel driving circuit, a display panel and a driving method, the pixel driving circuit includes a first initialization device, a first threshold compensation device, a first data writing device, a first light emitting control device and a light emitting adjustment device. The first initialization device includes a first initialization signal terminal, a first initialization control terminal and a first scanning signal terminal, and is electrically connected to a first node and a second node. The first threshold compensation device includes a first power signal terminal, and is electrically connected to the first scanning signal terminal, the first node and a third node. The first data writing device includes a first data signal terminal, a second scanning signal terminal and a light emitting duration control signal terminal, and is electrically connected to the second node.
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公开(公告)号：US20180366083A1
公开(公告)日：2018-12-20
申请号：US15824069
申请日：2017-11-28
Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.
Inventor： Qingjun LAI , Yihua ZHU
IPC: G09G3/36 , G06F3/041 , G02F1/1333 , G02F1/1343
Abstract: The present disclosure provides a method for driving a display panel, a display panel, and a display device, which relates to the technical field of liquid crystal display technologies, and can decrease a risk of abnormal display caused by a sudden change of voltage on a touch electrode, when finishing a touch stage and entering into a display stage. The method includes:when finishing a touch stage and entering into a display stage, compensating a charging voltage value corresponding to first N rows of to-be-charged pixel electrodes in the display stage; and charging the first N rows of the to-be-charged pixel electrodes according to a charging voltage value after compensation; wherein N is an integer greater than or equal to 1. The technical solution is mainly used in a charging process of the pixel electrodes.
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23.发明申请公开(公告)号：US20170102821A1
公开(公告)日：2017-04-13
申请号：US15385805
申请日：2016-12-20
Inventor： Qingjun LAI , Zhaokeng CAO , Poping SHEN , Xiufeng ZHOU , Yihua ZHU , Zhaodong ZHANG
CPC classification number: G06F3/0416 , G06F3/044 , G06F2203/04111
Abstract: A touch-control display panel, a driving method thereof, and a touch-control display device are provided. The display panel includes a first substrate and a plurality of touch-control driving electrodes extending along a second direction. The first substrate includes a first touch-control display region and a second touch-control display region arranged along a first direction. The plurality of touch-control driving electrodes include first touch-control driving electrodes distributed in the first touch-control display region and second touch-control driving electrodes distributed in the second touch-control display region. The number of the first touch-control driving electrodes is equal to the number of the second touch-control driving electrodes. One first touch-control driving electrode and one second touch-control driving electrode are scanned simultaneously, a distance from the one first touch-control driving electrode to the second touch-control display region is equal to a distance from the one second touch-control driving electrode to the first touch-control display region.
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公开(公告)号：US20230351940A1
公开(公告)日：2023-11-02
申请号：US18344897
申请日：2023-06-30
Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.
Inventor： Qingjun LAI , Yihua ZHU , Yong YUAN
IPC: G09G3/20
CPC classification number: G09G3/2092 , G09G2310/0286 , G09G2310/08 , G11C19/28
Abstract: Provided are a display panel and a display device. The display panel includes a driver circuit including N stages of cascaded shift registers, where N≥2. A shift register includes a first control part and a second control part. The second control part includes a first control unit and a second control unit. The first control unit comprises a first gating unit. One terminal of the first gating unit is connected to a preset node, another terminal of the first gating unit is connected to a fourth node, and a control terminal of the first gating unit is configured to receive a fifth voltage signal. The second control unit is configured to receive at least a third voltage signal and a signal of the fourth node or receive at least a fourth voltage signal and a signal of a fifth node and generate an output signal.
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公开(公告)号：US20230290289A1
公开(公告)日：2023-09-14
申请号：US18198112
申请日：2023-05-16
Applicant: Xiamen Tianma Micro-Electronics Co.,Ltd.
Inventor： Qingjun LAI , Yihua ZHU , Yong YUAN , Ping AN , Zhaokeng CAO
CPC classification number: G09G3/20 , G11C19/28 , G09G2300/0819 , G09G2300/0842 , G09G2310/0286
Abstract: A display panel includes a driving circuit. The driving circuit includes N levels of shift registers cascaded with each other, N≥2. A shift register of the N levels of the shift registers includes a third control unit and a fourth control unit. The third control unit is configured to receive the first voltage signal and a second voltage signal and control a signal of a fourth node in response to the signal of the second node and a signal of a third node. The first voltage signal is a high-level signal and the second voltage signal is a low-level signal. The fourth control unit is configured to receive a third voltage signal and a fourth voltage signal and generate an output signal in response to the signal of the first node and the signal of the fourth node and includes a first transistor and a second transistor.
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Patent Agency Ranking
公开(公告)号：US20220327980A1
公开(公告)日：2022-10-13
申请号：US17855139
申请日：2022-06-30
Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.
Inventor： Qingjun LAI , Yihua ZHU
IPC: G09G3/20
Abstract: A display panel and a display device are provided. The display panel includes a driving circuit and the driving circuit includes N-level shift registers cascaded with each other, where N is greater than or equal to two. A shift register of the N-level shift registers includes: a third control unit, configured to control a signal of a fourth node, the third control unit receives a first voltage signal and a second voltage signal, the first voltage signal is a high-level signal, and the second voltage signal is a low-level signal; and a fourth control unit, configured to generate an output signal, the fourth control unit receives a third voltage signal and a fourth voltage signal. The display panel further includes a pixel circuit, the pixel circuit includes a driving transistor, the driving circuit provides a first driving signal.
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公开(公告)号：US20220215791A1
公开(公告)日：2022-07-07
申请号：US17212323
申请日：2021-03-25
Applicant: Xiamen Tianma Micro-Electronics Co.,Ltd.
Inventor： Qingjun LAI , Yihua ZHU , Shaorong YU
IPC: G09G3/20
Abstract: The present disclosure provides a shift register and a driving method thereof, a scan driving circuit, a display panel, and a display device. The shift register includes an input module; a control module; a reset module; a first output module; a second output module; and a stabilization module, that a phase of a signal output from the second output module lags behind a phase of a signal output from the first output module, and does not overlap with the phase of the signal output from the first output module.
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公开(公告)号：US20220208051A1
公开(公告)日：2022-06-30
申请号：US17451126
申请日：2021-10-15
Applicant: Xiamen Tianma Micro-Electronics Co.,Ltd.
Inventor： Qingjun LAI , Yihua ZHU , Ping AN
Abstract: A display panel and a display device are provided. The display panel includes a driving circuit. The driving circuit includes N-level shift registers cascaded with each other, where N is greater than or equal to two. A shift register includes: a first control unit configured to receive an input signal and control a signal of a first node; a second control unit configured to receive a first voltage signal and control a signal of a second node; a third control unit configured to receive the first voltage signal and generate an output signal, or receive a second voltage signal and generate an output signal in response to a signal of a third node connected to the first node; and a fourth control unit configured to receive the second voltage signal and control the signal of the first node. The first and second voltage signals are high-level and low-level signals, respectively.
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公开(公告)号：US20200327852A1
公开(公告)日：2020-10-15
申请号：US16914490
申请日：2020-06-29
Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.
Inventor： Qitai JI , Qingjun LAI , Xiao LI
IPC: G09G3/32
Abstract: Provided are a pixel driving circuit, a driving method, a display panel and a display device. The pixel driving circuit includes: a data writing device, a voltage stabilizing storage device, a driving device and a light-emitting component; where the data writing device is configured for transmitting a data signal voltage; the driving device is configured for generating a driving current according to the data signal voltage transmitted by the data writing device; the voltage stabilizing storage device is configured for storing the data signal voltage transmitted to the driving device; the light-emitting component is configured for emitting light in response to the driving current generated by the driving device; where the voltage stabilizing storage device includes at least two voltage stabilizing storage sub-devices connected in parallel, each voltage stabilizing storage sub-device includes a capacitor, at least one of the voltage stabilizing storage sub-devices includes a switch device.
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公开(公告)号：US20240063226A1
公开(公告)日：2024-02-22
申请号：US18384593
申请日：2023-10-27
Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.
Inventor： Qingjun LAI , Yihua ZHU , Yong YUAN , Ping AN , Zhaokeng CAO
CPC classification number: H01L27/1225 , G11C19/28 , G09G2310/0286
Abstract: A display panel includes at least one driving circuit and at least one pixel circuit. A driving circuit of the at least one driving circuit provides a driving signal for a pixel circuit of the at least one pixel circuit. The driving circuit includes N-level shift registers cascaded with each other. N is greater than or equal to two. The pixel circuit provides a display signal for a display unit of the display panel. A shift register of the N-level shift registers includes at least one first transistor. The at least one first transistor includes at least one first active layer, and an active layer with a largest area among the at least one first active layer is a first preset active layer. The pixel circuit includes at least one second transistor. The at least one second transistor includes at least one second active layer.
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