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公开(公告)号：US20230309342A1
公开(公告)日：2023-09-28
申请号：US17771484
申请日：2022-04-13
Inventor： Hong CHENG , Yanqing GUAN , Chao TIAN , Fei AI , Guanghui LIU
CPC classification number: H01L27/3262 , G09G3/32 , H01L27/3265 , G09G2300/0426 , G09G2300/0842 , G09G2300/0861 , G09G2320/0233 , G09G2320/0242 , H01L27/1225
Abstract: A display panel, a pixel driving circuit, and a display device are provided. Driving transistors include a first transistor and a second transistor connected in parallel. An absolute value of a threshold voltage of the first transistor is greater than an absolute value of a threshold voltage of the second transistor. A carrier mobility of the first transistor is greater than a carrier mobility of the second transistor. A driving current is affected by characteristics of the second transistor and an increase speed is slowed down, which improves a problem of color unevenness of the display panel at low brightness.
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公开(公告)号：US20210225891A1
公开(公告)日：2021-07-22
申请号：US16097891
申请日：2018-08-01
Inventor： Juncheng XIAO , Chao TIAN
IPC: H01L27/12 , H01L21/8234 , H01L29/786
Abstract: The present disclosure provides an array substrate and a method for manufacturing the same. The method includes providing a substrate, and forming a polysilicon layer, a gate insulating layer, a second buffer layer, a patterned second metal layer, and a third buffer layer on the substrate in turn; forming a through-hole by a mask process, wherein the through-hole passes through the passivation layer, the third buffer layer, the second buffer layer, and the gate insulating layer to contact the polysilicon layer.
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公开(公告)号：US20210225311A1
公开(公告)日：2021-07-22
申请号：US16302678
申请日：2018-08-16
Inventor： Xin ZHANG , Juncheng XIAO , Chao TIAN , Yanqing GUAN
IPC: G09G3/36
Abstract: A gate driver on array (GOA) circuit, a liquid crystal panel comprising the GOA circuit, and a display device including the liquid crystal panel are provided. The GOA circuit comprises a forward and backward scanning control module configured to control the GOA circuit to perform forward scan or backward scan according to a forward scanning signal or a backward scanning signal respectively, a first voltage stabilizing module configured to maintain a voltage level of a first node, and a second voltage stabilizing module electrically connecting to the forward and backward scanning control module, and configured to maintain a voltage level of an output signal of the forward and backward scanning control module.
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公开(公告)号：US20200226994A1
公开(公告)日：2020-07-16
申请号：US16349625
申请日：2018-10-10
Inventor： Xin ZHANG , Junchen XIAO , Yanqing GUAN , Chao TIAN
IPC: G09G3/36
Abstract: A gate driver of array (GOA) circuit and a display device are disclosed. An n-th sub-circuit in the GOA circuit includes a control module, an output module, a pull-up supplement module, and a leakage switch. The pull-up supplement module includes a supplement switch and an auxiliary switch. The supplement switch is coupled to the auxiliary switch, the control module, and the output module. The auxiliary switch is coupled to the supplement switch, the control module, and the output module. The leakage switch is coupled to the control module, the output module, the supplement switch, and the auxiliary switch.
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公开(公告)号：US20250087162A1
公开(公告)日：2025-03-13
申请号：US18248578
申请日：2023-03-29
Inventor： Mingyue LI , Chao TIAN , Yanqing GUAN , Fei AI , Guanghui LIU
IPC: G09G3/3266 , G09G3/32
Abstract: The present application provides a display panel and a display device, the display panel includes: N scan lines, the N is an integer greater than or equal to 1; and J sets of forward and reverse scan pull-down circuits, each set of the forward and reverse scan pull-down circuits includes N forward and reverse scan pull-down modules, at least a part of each of the forward and reverse scan pull-down modules is disposed in the display subarea, and the J is an integer greater than or equal to 1. In each set of the forward and reverse scan pull-down circuits, output terminals of the N forward and reverse scan pull-down modules are connected to the N scan lines in a one-to-one correspondence.
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Patent Agency Ranking
公开(公告)号：US20240296767A1
公开(公告)日：2024-09-05
申请号：US17915517
申请日：2022-09-01
Inventor： Haiming CAO , Chao TIAN , Fei AI , Guanghui LIU
IPC: G09G3/20
CPC classification number: G09G3/20 , G09G2310/0251 , G09G2310/0267 , G09G2320/0223
Abstract: The present disclosure provides a display panel and a display device. The display panel includes a plurality of scan lines and at least one pull-down circuit unit.disposed at intervals ina n The pull-down circuit includes a forward scan pull-down unit and/or a reverse scan pull-down unit. The forward scan pull-down unit receives a (n+m)th scan signal, a first control signal, and a reference low level signal, and is connected to the nth scan line. The reverse scan pull-down unit receives a (n−m)th scan signal, a second control signal, and the reference low level signal, and is connected to the nth scan line.
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公开(公告)号：US20240221564A1
公开(公告)日：2024-07-04
申请号：US17596876
申请日：2021-12-14
Inventor： Chao TIAN , Yanqing GUAN , Guanghui LIU , Fei AI
CPC classification number: G09G3/20 , H01L27/124 , G09G2310/0281
Abstract: The present application provides a display panel and an electronic device. The electronic device comprises the display panel. The display panel comprises a gate driving unit, a first auxiliary driving unit and scan lines. The first auxiliary driving unit rapidly pulls down the falling edge of the scan signal transmitted in the scan line to reduce the delay of the falling edge of the scan line. Thus, the number of gate driving units in the display panel can be reduced, thereby reducing the width of the frame of the display panel and the electronic device.
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公开(公告)号：US20240144872A1
公开(公告)日：2024-05-02
申请号：US17772186
申请日：2022-04-15
Inventor： Xuebin YUAN , Chao TIAN
IPC: G09G3/3233 , G09G3/32
CPC classification number: G09G3/3233 , G09G3/32 , G09G2310/0272 , G09G2310/08
Abstract: The present disclosure discloses a pixel circuit and a display panel. The pixel circuit includes a light emitting module and a driving module including at least two driving units connected in parallel. a quantity of displayable gray scales can be improved or increased by configuring at least two driving units connected in parallel in the driving module where the at least two driving units can each correspondingly configure a light emitting current so that a plurality of light emitting brightness of the light emitting module can be implemented by a sum of these light emitting currents.
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公开(公告)号：US20240021121A1
公开(公告)日：2024-01-18
申请号：US17605043
申请日：2021-06-01
Inventor： Chao TIAN
IPC: G09G3/20
CPC classification number: G09G3/20 , G09G2300/0408 , G09G2310/0267
Abstract: A display panel integrated with a gate driving circuit in a display area is provided. In the display panel, gate driving signal lines and data lines are not arranged side by side between any same adjacent two columns of sub-pixels. This avoids possibility of arranging the data lines and the gate driving signal lines side by side between any same adjacent two columns of sub-pixels, prevents the data lines from being easily disturbed by a parasitic capacitance generated between the data lines and the gate driving signal lines, and also avoids abnormal images on the display panel.
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公开(公告)号：US20230100833A1
公开(公告)日：2023-03-30
申请号：US16975164
申请日：2020-06-30
Inventor： Juncheng XIAO , Chao TIAN , Yanqing GUAN , Yongxiang ZHOU
IPC: G06V40/13 , H03F3/04 , G06V10/147
Abstract: A fingerprint readout circuit and a display panel are disclosed. The fingerprint readout circuit includes a voltage amplifier unit, a fingerprint readout unit, and a source follower unit. The voltage amplifier unit is coupled to the fingerprint readout unit and the source follower unit, and the fingerprint readout unit is coupled to the source follower unit. The fingerprint readout circuit has both current and voltage amplification functions. Therefore, a voltage difference is amplified, facilitating reading out fingerprint signals accurately and enhancing fingerprint readout precision and accuracy.
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