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公开(公告)号：US20240038130A1
公开(公告)日：2024-02-01
申请号：US17430058
申请日：2021-06-08
Inventor： Chao TIAN , Yanqing GUAN , Guanghui LIU , Fei AI
IPC: G09G3/20
CPC classification number: G09G3/2092 , G09G2310/0267 , G09G2300/043
Abstract: The present application provides a display panel and a display device. An N-th auxiliary unit is arranged in a display area of the display panel. An output end of the N-th auxiliary unit is connected to an N-th scan line. By connecting the auxiliary unit arranged in the display area to the corresponding scan line, a falling edge of a scan signal transmitted in the scan line can have sharp falling or a rising edge of the scan signal can have sharp rising, which can alleviate a signal distortion problem caused by transmission delay in the display area.
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公开(公告)号：US20210225230A1
公开(公告)日：2021-07-22
申请号：US16308125
申请日：2018-08-10
Inventor： Xin ZHANG , Juncheng XIAO , Chao TIAN , Yanqing GUAN
IPC: G09G3/20
Abstract: A driving circuit includes a driving unit. Each of the driving unit includes a body portion and a voltage-level maintaining portion, connected to the first sub-line and the second sub-line of the body portion. The voltage-level maintaining portion includes a transistor having a controlling terminal connected to the first sub-line, an input terminal connected to a first voltage-level signal input terminal of the body portion, and an output terminal connected to the second sub-line. The present disclosure can enhance the stability of the driving circuit over the display period and the touch sensing period.
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公开(公告)号：US20200273418A1
公开(公告)日：2020-08-27
申请号：US16342977
申请日：2018-12-27
Inventor： Xin ZHANG , Juncheng XIAO , Yanqing GUAN
IPC: G09G3/36
Abstract: The invention provides a GOA circuit, a display panel and a display device. The GOA circuit includes: a first voltage stabilizing module, including a first capacitor and a second capacitor, and one end of the first capacitor is connected to a connection point between a forward scan control signal and a forward and reverse scan control module; one end of the second capacitor is connected to a connection point between a reverse scan control signal and the forward and reverse scan control module.
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公开(公告)号：US20250078728A1
公开(公告)日：2025-03-06
申请号：US18247256
申请日：2023-02-08
Inventor： Chao TIAN , Mingyue LI , Yanqing GUAN , Haiming CAO , Fei AI , Guanghui LIU
IPC: G09G3/32
Abstract: An embodiment of the present disclosure is directed to a display panel. The display panel includes a plurality of scan lines and a plurality of forward and reverse scan pull-down circuit. The plurality of scan lines is located on the display area. Each of the forward and reverse scan pull-down circuits includes a forward scan control module, a reverse scan control module, and a pull-down module located on a display area. The pull-down module includes an output terminal and a control terminal coupled to an output terminal of the forward scan control module and an output terminal of the reverse scan control module.
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公开(公告)号：US20250037668A1
公开(公告)日：2025-01-30
申请号：US18914469
申请日：2024-10-14
Inventor： Chao TIAN , Yanqing GUAN , Guanghui LIU , Fei AI
IPC: G09G3/3266 , G09G3/20 , G09G3/36
Abstract: The present application provides a display panel and a display device. An N-th auxiliary unit is arranged in a display area of the display panel. An output end of the N-th auxiliary unit is connected to an N-th scan line. By connecting the auxiliary unit arranged in the display area to the corresponding scan line, a falling edge of a scan signal transmitted in the scan line can have sharp falling or a rising edge of the scan signal can have sharp rising, which can alleviate a signal distortion problem caused by transmission delay in the display area.
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Patent Agency Ranking
公开(公告)号：US20240005829A1
公开(公告)日：2024-01-04
申请号：US17617608
申请日：2021-10-29
Inventor： Haiming CAO , Yanqing GUAN , Chao TIAN , Fei AI , Guanghui LIU , Zhifu LI
IPC: G09G3/20
CPC classification number: G09G3/20 , G09G2310/0267 , G09G2330/021
Abstract: A gate driving circuit and a display panel are disclosed. A pull-up control module and a pull-down module of each stage gate driving unit are connected to a first node. A thin film transistor in the pull-up control module and/or pull-down module that is connected to the first node is an oxide thin film transistor, such that a leakage current of the first node is reduced due to the advantage of the small off-state leakage current of the oxide thin film transistor. Therefore, the voltage level of the first node can remain stable during a pull-up stage and a touch suspension stage.
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公开(公告)号：US20210408082A1
公开(公告)日：2021-12-30
申请号：US16756350
申请日：2019-11-15
Inventor： Juncheng XIAO , Chao TIAN , Yanqing GUAN , Haiming CAO
IPC: H01L27/12
Abstract: The present invention provides an array substrate, a manufacturing method thereof, and a display panel. Orthographic projections of channel layers of two types of thin film transistors in a design of a driving circuit on the array substrate at least partially overlap, that is, two thin film transistors are stacked on top of each other, thereby facilitating a narrow border design of the display panel. In addition, a channel layer of one of the thin film transistors is an amorphous oxide semiconductor layer, which can reduce node leakage in the driving circuit, which is conducive to improving circuit stability and reducing power consumption.
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公开(公告)号：US20200090609A1
公开(公告)日：2020-03-19
申请号：US15747102
申请日：2017-11-27
Inventor： Yanqing GUAN
Abstract: GOA circuit is disclosed comprising m stages GOA units, wherein a n-th stage GOA unit comprises: an output control module, a forward-backward scan control module, a node signal control module, a signal output module, a first pull-down circuit, a second pull-down circuit, and a pull-up circuit, wherein m≥n¢1; output control module controls a n-th stage gate driving signal; first pull-down circuit comprises a 7th thin-film-transistor which first end connected with said output control module, and second end connected with low voltage signal; signal output module comprises a 5th thin-film-transistor which first end connected with high voltage signal and second end connected with third end of said 7th thin-film-transistor; node signal control module controls said 5th thin-film-transistor as conducting or non-conducting; second pull-down circuit controls said 5th thin-film-transistor as non-conducting. Present invention eliminates the sticking and flicker of display panels after out of power improving user experience.
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公开(公告)号：US20240331603A1
公开(公告)日：2024-10-03
申请号：US18740677
申请日：2024-06-12
Inventor： Mingyue LI , Chao TIAN , Yanqing GUAN , Fei AI , Guanghui LIU
IPC: G09G3/20
CPC classification number: G09G3/20 , G09G2310/0267 , G09G2310/0283
Abstract: The present application discloses a gate drive circuit and a display device. The gate drive circuit includes a plurality of cascaded gate drive units, in which one of the gate drive units includes a first layout, an input module and a pull-up module. By receiving a potential changeable signal by the gate of a first transistor or the gate of a second thin-film transistor, it can alleviate or avoid current leakage caused when a first node keeps at a same voltage level for a long time, thereby improving the stability of the potential of the first node.
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公开(公告)号：US20230274701A1
公开(公告)日：2023-08-31
申请号：US17622633
申请日：2021-12-15
Inventor： Chao TIAN , Yanqing GUAN , Guanghui LIU , Fei AI
IPC: G09G3/3266 , G09G3/36 , G06F3/041
CPC classification number: G09G3/3266 , G09G3/3674 , G06F3/0412 , G06F3/04166 , G06F3/0418 , G09G2310/08 , G09G2354/00
Abstract: A gate driving circuit and a display device are provided. The gate driving circuit includes electrically connected multi-stage driving units. The driving unit of each stage includes an input module, an output module electrically connected with the input module, a pull-down module electrically connected with the output module, and a pull-down control module electrically connected with the pull-down module. The output module is electrically connected to a stage transmission signal output terminal, and the pull-down module is electrically connected to a first control signal terminal.
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