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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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公开(公告)号：US20230230547A1
公开(公告)日：2023-07-20
申请号：US18168976
申请日：2023-02-14
Inventor： Yong YUAN , Nana XIONG , Jujian FU
IPC: G09G3/3233
CPC classification number: G09G3/3233 , G09G2310/061 , G09G2300/0452 , G09G2320/0252 , G09G2320/045 , G09G2320/0233 , G09G2320/0247 , G09G2300/0842
Abstract: A display panel and a display device are provided. The display panel includes pixel circuits. Each pixel circuit includes a driving transistor, a data writing circuit, a light-emitting control circuit, a threshold compensation circuit and a bias adjustment circuit. The driving transistor includes a gate electrically connected to a first node, a first terminal electrically connected to a second node, and a second terminal electrically connected to the third node, and is configured to generate a driving current. The third node is connected to a light-emitting element through the light-emitting control circuit. The bias adjustment circuit is configured to provide a signal of a bias adjustment signal terminal to the second node under control of a signal of a first scanning signal terminal in such a manner that a bias state of the driving transistor is adjusted.
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公开(公告)号：US20230215319A1
公开(公告)日：2023-07-06
申请号：US18115445
申请日：2023-02-28
Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.
Inventor： Yong YUAN
CPC classification number: G09G3/20 , G11C19/287 , G09G2310/0286 , G09G2310/0267 , G09G2310/0243 , G09G2320/02 , G09G2300/08 , G09G2310/08
Abstract: Provided are a display panel and display device. The display panel includes a driver circuit comprising a shift register that is N-stage cascaded; wherein the shift register comprises: a third control unit configured to receive a first voltage signal and generate an output signal in response to a signal of a third node, or receive a second voltage signal and generate an output signal in response to a signal of a second node; and a fourth control comprising a first capacitor and a first transistor, wherein a second plate of the first capacitor is connected to a drain of the first transistor, a source of the first transistor receives a first control signal, and a gate of the first transistor receives a second control signal.
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公开(公告)号：US20230206807A1
公开(公告)日：2023-06-29
申请号：US18115500
申请日：2023-02-28
Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.
Inventor： Yong YUAN
CPC classification number: G09G3/20 , G11C19/287 , G09G2310/0286 , G09G2310/0267 , G09G2310/0243 , G09G2320/02 , G09G2300/08 , G09G2310/08
Abstract: Provided are a display panel and display device. The display panel includes a driver circuit comprising a shift register that is N-stage cascaded, wherein N is a number greater than or equal to 2; where the shift register comprises: a third control unit configured to receive a first voltage signal and generate an output signal in response to a signal of a third node, or receive a second voltage signal and generate an output signal in response to a signal of a second node; and a fourth control unit comprising a first capacitor, a first transistor and a second transistor, where a second plate of the first capacitor is connected to a drain of the first transistor, a source of the second transistor is connected to a first node, and a drain of the second transistor is connected to the third node.
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公开(公告)号：US20230206806A1
公开(公告)日：2023-06-29
申请号：US18115476
申请日：2023-02-28
Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.
Inventor： Yong YUAN
CPC classification number: G09G3/20 , G11C19/287 , G09G2310/0286 , G09G2310/0267 , G09G2310/0243 , G09G2320/02 , G09G2300/08 , G09G2310/08
Abstract: Provided are a display panel and display device. The display panel includes a driver circuit comprising a shift register that is N-stage cascaded; wherein the shift register comprises: a third control unit configured to receive a first voltage signal and generate an output signal in response to a signal of a third node, or receive a second voltage signal and generate an output signal in response to a signal of a second node; and a fourth control comprising a first capacitor and a first transistor, wherein a second plate of the first capacitor is connected to a drain of the first transistor, a first plate of the first capacitor and a gate of the first transistor are connected to a same node; and/or a first plate of the first capacitor and a gate of the first transistor receive a same signal.
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Patent Agency Ranking
公开(公告)号：US20230092608A1
公开(公告)日：2023-03-23
申请号：US17994538
申请日：2022-11-28
Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.
Inventor： Yong YUAN
IPC: G09G3/32
Abstract: Provided are a display panel and a display device. The display panel includes a pixel circuit and a light-emitting element. The pixel circuit includes a data write module, a drive module and a compensation module. The drive module includes a drive transistor. The data write module is connected to an input terminal of the drive module; a first electrode of the compensation module is connected to an output terminal of the drive module, and a second electrode of the compensation module is connected to a control terminal of the drive module. The data write module includes a data write transistor and a bias transistor, the data write transistor is connected to a data signal input terminal and configured to transmit a data signal, and the bias transistor is connected to a bias signal input terminal and configured to transmit a bias signal.
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公开(公告)号：US20230087574A1
公开(公告)日：2023-03-23
申请号：US17994617
申请日：2022-11-28
Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.
Inventor： Yong YUAN
IPC: G09G3/32
Abstract: Provided are a display panel and a display device. The display panel includes a pixel circuit and a light-emitting element. The pixel circuit includes a data write module, a drive module, a compensation module and a reset module. The drive module includes a drive transistor. The data write module is connected between a data signal input terminal and a source of the drive transistor. The compensation module is connected between a gate of the drive transistor and the drain of the drive transistor. The rest module is connected between a reset signal terminal and the drain of the drive transistor. The reset module also serves as a bias module. An operation of the pixel circuit includes a reset stage and a bias stage, during the reset stage, the reset module and the compensation module are on.
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公开(公告)号：US20220293044A1
公开(公告)日：2022-09-15
申请号：US17824091
申请日：2022-05-25
Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.
Inventor： Yong YUAN , Jieliang Li
IPC: G09G3/32 , G09G3/3233
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 drive module, a data writing module, a light emission control module, and a bias module; where the drive module is configured to provide the light-emitting element with a drive current and includes a drive transistor; the data writing module is connected to a source of the drive transistor and configured to selectively provide the drive module with a data signal; the light emission control module is configured to selectively allow the light-emitting element to enter a light-emitting stage; the bias module is connected between a drain of the drive transistor and the light emission control signal line.
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公开(公告)号：US20210242297A1
公开(公告)日：2021-08-05
申请号：US17235898
申请日：2021-04-20
Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.
Inventor： Yong YUAN
IPC: H01L27/32
Abstract: Provided is a display panel, and the display panel includes a base substrate, a first signal line, a planarization layer, a light-emitting element and a pixel spacer layer. The first signal line is disposed on the base substrate, where the first signal line includes a first sub signal line and a second sub signal line which are electrically connected to each other and are disposed in different layers, and the first sub signal line is disposed on one side of the second sub signal line facing toward the base substrate. The planarization layer is disposed on one side of the first signal line facing away from the base substrate. The light-emitting element and the pixel spacer layer are disposed on one side of the planarization layer facing away from the base substrate. The planarization layer includes a first opening.
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公开(公告)号：US20210183976A1
公开(公告)日：2021-06-17
申请号：US17184599
申请日：2021-02-25
Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.
Inventor： Yong YUAN
Abstract: Provided are an array substrate and a manufacturing method of an array substrate and a display panel and device. The array substrate includes a pixel circuit. The pixel circuit includes a first transistor and a second transistor, the first transistor includes a first active layer, the second transistor includes a second active layer, and the first active layer and the second active layer both include silicon. The array substrate further includes a first-type inorganic layer and a second-type inorganic layer and a first via hole. The first via hole is located above the first active layer and at least penetrates through the second-type inorganic layer. Concentration of hydrogen ions in the first active layer is less than concentration of hydrogen ions in the second active layer.
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