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公开(公告)号：US20230186842A1
公开(公告)日：2023-06-15
申请号：US18108284
申请日：2023-02-10
Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.
Inventor： Qingjun LAI , Yihua ZHU , Ping AN
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2300/043 , G09G2300/0819 , G09G2320/0233 , G09G2320/045
Abstract: Provided are a display panel, a driving method thereof and a display device. The display panel includes: a pixel circuit and a light-emitting element, where the pixel circuit includes a light emitting control module, a drive module and a compensation module; the light emitting control module includes a first light emitting control module configured to selectively provide a first power supply signal for the drive module; the drive module is configured to provide a drive current for the light-emitting element and comprises a drive transistor; the compensation module is configured to compensate a threshold voltage of the drive transistor; and a working process of the pixel circuit includes a light emitting stage and a bias stage.
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公开(公告)号：US20230343279A1
公开(公告)日：2023-10-26
申请号：US18344886
申请日：2023-06-30
Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.
Inventor： Qingjun LAI , Yihua ZHU
IPC: G09G3/32 , G09G3/3266
CPC classification number: G09G3/32 , G09G3/3266 , G09G2310/0286 , G09G2310/061 , G09G2310/08 , G09G2330/021 , G09G2340/0435 , G09G2300/0842 , G09G2300/0861 , G09G3/325
Abstract: A display panel includes a driving circuit including N stages of cascaded shift registers, and each shift register includes: a first control part and a second control part; the second control part is configured to at least receive the signal of the second node, the signal of the third node, and a frequency control signal to generate an output signal; one shift register of the cascaded shift registers connected to a display unit in the first region is configured to receive the first frequency control signal, and one shift register of the cascaded shift registers connected to a display unit in the second region is configured to receive the second frequency control signal; a data refresh frequency of the display unit in the first region is F1, and a data refresh frequency in the second region is F2, F1
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公开(公告)号：US20230343271A1
公开(公告)日：2023-10-26
申请号：US18344894
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 is configured to receive at least a signal of a preset node and a first output control signal and control a signal of a fourth node. During at least part of a time period during which the signal of the fourth node is a low level signal, each of a signal of the preset node and the first output control signal is a low level signal.
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公开(公告)号：US20220327979A1
公开(公告)日：2022-10-13
申请号：US17854985
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. 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 fourth control unit, configured to receive a third voltage signal and a fourth voltage signal, and generate an output signal in response to a signal of a second node and a signal of a fourth node. The display panel further includes a pixel circuit, the pixel circuit includes a driving transistor, a working process of the pixel circuit includes a reset stage and a bias stage, where in the reset stage, the output signal of the driving circuit is a reset signal, and in the bias stage, the output signal of the driving circuit is a bias signal.
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公开(公告)号：US20220254291A1
公开(公告)日：2022-08-11
申请号：US17643557
申请日：2021-12-09
Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.
Inventor： Qingjun LAI , Yihua ZHU , Yong YUAN , Ping AN , Zhaokeng CAO
Abstract: A display panel and a display device are provided. The display panel includes a driving circuit. The driving circuit includes N levels of shift registers cascaded with each other, where N 2. A shift register of the N levels of shift registers includes: a first control unit, configured to receive an input signal and control a signal of a first node in response to a first clock signal; a second control unit, configured to receive a first voltage signal and a second voltage signal, and control a signal of a second node in response to the signal of the first node, the first clock signal, and a second clock signal; and a third control unit, configured to receive the first voltage signal and the second voltage signal, and control an output signal in response to the signal of the second node and a signal of the third node.
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Patent Agency Ranking
公开(公告)号：US20220223109A1
公开(公告)日：2022-07-14
申请号：US17350195
申请日：2021-06-17
Applicant: Xiamen Tianma Micro-Electronics Co.,Ltd.
Inventor： Qingjun LAI , Yihua ZHU , Shaorong YU
IPC: G09G3/3266 , G11C19/28
Abstract: A shift register circuit and its driving method, a display panel, and a display device are provided. The shift register circuit includes an input module, a first inverter, a second inverter, and an output module. The input module is connected to a first input terminal, a second input terminal, a third input terminal, and a first electrical-level terminal, to respond to signals from the second and third input terminal and control a voltage of a first node. In the first inverter, an input terminal is connected to the first node, and an output terminal is connected to a second node. In the second inverter, an input terminal is connected to the second node, and an output terminal is connected to the first node. The output module provides a signal of the fourth input terminal to an output terminal of the output module, and also provides a voltage of a first power terminal to the output terminal of the output module.
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公开(公告)号：US20170068386A1
公开(公告)日：2017-03-09
申请号：US15353014
申请日：2016-11-16
Inventor： Qingjun LAI , Zhaokeng CAO , Poping SHEN , Xiufeng ZHOU , Yihua ZHU , Zhaodong ZHANG
CPC classification number: G06F3/0416 , G06F3/0412 , G06F3/044
Abstract: A touch control display panel and a display device are provided. The touch control display panel may comprise a plurality of touch driving electrodes arranged in a first direction; a touch sensing electrode array including a plurality of touch sensing electrode rows arranged in a second direction, wherein a touch sensing electrode row includes a first touch sensing electrode and a second touch sensing electrode arranged in the first direction. In a same touch sensing electrode row, a gap is provided between the first touch sensing electrode and the second touch sensing electrode, and the gap has a width of w1 in the first direction, the touch driving electrode disposed opposite to and over the gap between the first touch sensing electrode and the second touch sensing electrode has an electrode width of w2 in the first direction, and the gap width w1 is smaller than the electrode width w2.
Abstract translation: 提供了触摸控制显示面板和显示装置。 触摸控制显示面板可以包括沿第一方向布置的多个触摸驱动电极; 触摸感测电极阵列，包括沿第二方向布置的多个触摸感测电极列，其中触摸感测电极行包括沿第一方向布置的第一触摸感测电极和第二触摸感测电极。 在相同的触摸感测电极列中，在第一触摸感测电极和第二触摸感测电极之间提供间隙，并且间隙在第一方向上具有w1的宽度，触摸驱动电极设置在第一触摸感测电极和第二触摸感测电极之间 第一触摸感测电极和第二触摸感测电极在第一方向上具有w2的电极宽度，并且间隙宽度w1小于电极宽度w2。
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公开(公告)号：US20240063228A1
公开(公告)日：2024-02-22
申请号：US18384584
申请日：2023-10-27
Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.
Inventor： Qingjun LAI , Yihua ZHU , Yong YUAN , Ping AN , Zhaokeng CAO
IPC: H01L27/12 , G09G3/3225
CPC classification number: H01L27/1237 , H01L27/1251 , G09G3/3225 , G09G2300/0426 , G09G2300/0842 , G09G2300/0465 , G09G2300/0814 , H01L27/1225 , H10K59/1213
Abstract: A display panel includes a base substrate, a first transistor and a second transistor. The first transistor and the second transistor are formed on the base substrate. The first transistor includes a first active layer, a first gate electrode, a first source electrode, and a first drain electrode. The first active layer includes silicon. The second transistor includes a second active layer, a second gate electrode, a second source electrode, and a second drain electrode. The second active layer includes an oxide semiconductor. A length of a channel region of the first transistor is L1. Along a direction perpendicular to the base substrate, a distance between the first gate electrode and the first active layer is D1. The first transistor further includes a third gate electrode. Along the direction perpendicular to the base substrate, a distance between the third gate electrode and the first active layer is D3, and D1
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公开(公告)号：US20230343280A1
公开(公告)日：2023-10-26
申请号：US18344891
申请日：2023-06-30
Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.
Inventor： Qingjun LAI , Yihua ZHU
IPC: G09G3/32 , G09G3/3266
CPC classification number: G09G3/32 , G09G3/3266 , G09G2310/0286 , G09G2310/061 , G09G2310/08 , G09G2330/021 , G09G2340/0435 , G09G2300/0842 , G09G2300/0861 , G09G3/325
Abstract: A display panel includes a driving circuit including N stages of cascaded shift registers, and each shift register includes: a first control part and a second control part; the second control part is configured to at least receive the signal of the second node, the signal of the third node, and a frequency control signal to generate an output signal; one shift register of the cascaded shift registers connected to a display unit in the first region is configured to receive the first frequency control signal, and one shift register of the cascaded shift registers connected to a display unit in the second region is configured to receive the second frequency control signal; a data refresh frequency of the display unit in the first region is F1, and a data refresh frequency in the second region is F2, F1
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公开(公告)号：US20220335875A1
公开(公告)日：2022-10-20
申请号：US17856751
申请日：2022-07-01
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, and the third voltage signal is a high-level signal, and the fourth voltage signal is a low-level signal.
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