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公开(公告)号：US20220293062A1
公开(公告)日：2022-09-15
申请号：US16971483
申请日：2020-07-21
Inventor： Chao TIAN , Yanqing GUAN
IPC: G09G3/36
Abstract: Disclosed is a driving circuit, a display panel and a display device. The driving circuit includes a plurality of cascaded driving units, where a first staged driving unit includes a forward and backward scan control module, a node signal control module, an output control module, a first voltage stabilizing module, a first pull-down module, a second pull-down module and an electrical leakage control module. The electrical leakage control module is configured to maintain a voltage level of an output signal of the forward and backward scan control module.
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公开(公告)号：US20220189397A1
公开(公告)日：2022-06-16
申请号：US17057664
申请日：2020-09-16
Inventor： Haiming CAO , Chao TIAN
IPC: G09G3/3233 , H01L27/32
Abstract: A pixel circuit and a display panel related to the field of display technology are provided. The pixel circuit and the display panel include a driving transistor, a first transistor, a second transistor, a first capacitor, and a second capacitor. The pixel circuit and the display panel, before emitting light, preset an electric potential of a gate, a drain, and a source of a driving transistor. As a result, a light-emitting current passing the driving transistor can be immune from a threshold voltage of the driving transistor during luminescence, further eliminating an ununiform luminescence phenomenon due to a drift of the threshold voltage.
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公开(公告)号：US20210358386A1
公开(公告)日：2021-11-18
申请号：US16979550
申请日：2020-06-15
Inventor： Haiming CAO , Chao TIAN
IPC: G09G3/20
Abstract: A display driving circuit is provided. The display driving circuit includes a multi-stage driving unit, and each stage of the driving unit includes a pull-up control unit and a pull-up unit. The pull-up unit is electrically connected to a second high voltage signal input terminal, so that high voltage signal input from the second high voltage signal input terminal is directly transmitted to a cascade signal output terminal through the pull-up unit, which further enables the display driving circuit to output a high voltage driving signal while a gate of a thin film transistor inside the display driving circuit is kept at low voltage.
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公开(公告)号：US20200226993A1
公开(公告)日：2020-07-16
申请号：US16342207
申请日：2018-08-16
Inventor： Xin ZHANG , Juncheng XIAO , Chao TIAN , Yanqing GUAN
IPC: G09G3/36
Abstract: A GOA circuit, a display panel and a display apparatus are provided. The GOA circuit includes: a forward/backward scanning control module configured to control, according to a forward scanning control signal or a backward scanning control signal, the GOA circuit to perform forward scanning or backward scanning, the level of an output signal from the forward/backward scanning control module being greater than a preset value; and, an output control module configured to control, according to a clock signal in a current level, the output of a gate driving signal in the current level.
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公开(公告)号：US20200082746A1
公开(公告)日：2020-03-12
申请号：US16342209
申请日：2018-09-11
Inventor： Xin ZHANG , Juncheng XIAO , Yanqing GUAN , Chao TIAN
IPC: G09G3/20
Abstract: A pixel driving circuit is provided. The pixel driving circuit comprises a reset module, a compensation module and light emitting module, wherein the reset module is configured to transmit a data signal to the compensation module to reset the compensation module under controlling of a first driving signal, the compensation module is configured to write the data signal to compensate a threshold voltage under controlling of a second driving signal, and the light emitting module is configured to emit light under controlling of a third driving signal.
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Patent Agency Ranking
公开(公告)号：US20200035181A1
公开(公告)日：2020-01-30
申请号：US16342208
申请日：2018-09-26
Inventor： Xin ZHANG , Juncheng 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 control module is electrically connected to a positive scan control terminal, a negative scan control terminal, an (n−2)th scan terminal, an (n+2)th scan terminal, an (n+1)th clock terminal, an (n−1)th clock terminal, a high voltage terminal, and a low voltage terminal. The output module is electrically connected to the high voltage terminal, the low voltage terminal, an n-th clock terminal, an n-th scan terminal, and a controllable terminal. The pull-up supplement module includes a supplement switch that is electrically connected to the high voltage terminal, the control module, and the output module. The leakage switch is electrically connected to the control module, the output module, the supplement switch, and the low voltage terminal.
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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：US20230137269A1
公开(公告)日：2023-05-04
申请号：US16970641
申请日：2020-06-24
Inventor： Chao TIAN
IPC: G09G3/36
Abstract: A GOA circuit, a display panel, and a display device are provided. The GOA circuit includes a second pull-down module. The second pull-down module includes a third thin film transistor, a fourth thin film transistor, and a fifth thin film transistor. An input terminal of the third thin film transistor receives a constant high voltage level signal. A control terminal of the third thin film transistor receives a second control signal. An output terminal of the third thin film transistor, an input terminal of the fourth thin film transistor, and an input terminal of the fifth thin film transistor are connected together.
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公开(公告)号：US20210225883A1
公开(公告)日：2021-07-22
申请号：US16097917
申请日：2018-08-01
Inventor： Chao TIAN , Juncheng XIAO
IPC: H01L27/12
Abstract: The present disclosure provides an LTPS array substrate and a method for manufacturing the same. The method includes forming a polysilicon pattern by a first mask process; performing a doping treatment on the polysilicon pattern and forming a gate electrode by a second mask process; forming a source electrode through-hole and a drain electrode through-hole and a pixel electrode by a third mask process; forming a source electrode and a drain electrode and a touch control signal line by a fourth mask process; forming a touch control electrode through-hole by a fifth mask process; and forming a touch control electrode by a sixth mask process.
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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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