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公开(公告)号：US11250765B2
公开(公告)日：2022-02-15
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：US11106070B2
公开(公告)日：2021-08-31
申请号：US16306587
申请日：2018-08-10
Inventor： Juncheng Xiao , Chao Tian
IPC: G02F1/1333 , G02F1/1368 , G02F1/1362 , G02F1/1343 , G06F3/041 , H01L27/12
Abstract: The invention provides an array substrate, a manufacturing method thereof and a display panel. The array substrate includes a substrate, a buffer layer, an active layer, a first insulating layer, a gate electrode, a second insulating layer, a touch signal line, a source and drain electrode, a touch signal line, a source and drain electrode, a first electrode, a planarization layer, and a second electrode. The first electrode and the second electrode are respectively connected to one of the drain electrode and the touch signal line. Thus, photomask processes can be reduced, and production cycle can be shortened.
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公开(公告)号：US12243458B2
公开(公告)日：2025-03-04
申请号：US17596876
申请日：2021-12-14
Inventor： Chao Tian , Yanqing Guan , Guanghui Liu , Fei Ai
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：US20240021118A1
公开(公告)日：2024-01-18
申请号：US17434726
申请日：2021-06-01
Inventor： Yongxiang Zhou , Chao Tian
IPC: G09G3/20
CPC classification number: G09G3/20 , G09G2310/0286 , G09G2300/0426 , G09G2320/0214
Abstract: A driving circuit and a display panel are provided. The driving circuit includes a plurality of driving units which are cascaded. An Nth stage driving unit includes: a pull-up control module; a first bootstrap module; a pull-up module; a pull-down control module; and a first pull-down module. The driving circuit can be normally operated by input signal lines including a first clock signal line, a second clock signal line, a first power signal line, a second power signal line, and an initial signal line, so that types and a number of the input signal lines can be effectively reduced.
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公开(公告)号：US11804062B2
公开(公告)日：2023-10-31
申请号：US16975164
申请日：2020-06-30
Inventor： Juncheng Xiao , Chao Tian , Yanqing Guan , Yongxiang Zhou
IPC: G06V40/13 , G06V10/147 , H03F3/04
CPC classification number: G06V40/1318 , G06V10/147 , G06V40/13 , H03F3/04 , G09G2310/0291
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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Patent Agency Ranking
公开(公告)号：US11113496B1
公开(公告)日：2021-09-07
申请号：US16960568
申请日：2020-06-03
Inventor： Yongxiang Zhou , Yanqing Guan , Chao Tian
Abstract: The present application provides a fingerprint recognition driving circuit, comprising: a cascade signal line; and a plurality of driving regions, wherein each of the driving regions is provided with a cascade unit and a plurality of first GOA driving units, each of the cascade units is connected to the cascade signal line to turn on the first GOA driving unit of a first stage in a corresponding driving region according to a cascade signal, and each of the cascade units is also configured to output an ON signal to the cascade unit of a next stage to turn on the cascade unit of the next stage.
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公开(公告)号：US10930193B2
公开(公告)日：2021-02-23
申请号：US16612146
申请日：2019-03-20
Inventor： Xin Zhang , Juncheng Xiao , Chao Tian , Yanqing Guan
IPC: G09G3/20
Abstract: A method, a device, and an electronic apparatus for scan signal generation are provided. The method includes acquiring an initial clock signal, processing the initial clock signal to generate a plurality of target clock signals, encoding the plurality of target clock signals according to a predetermined logic relationship to generate a plurality of ordered logic signals, decoding the plurality of ordered logic signals, and generating a plurality of scan signals according to a decoding result.
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公开(公告)号：US10770487B2
公开(公告)日：2020-09-08
申请号：US16086019
申请日：2018-08-07
Inventor： Juncheng Xiao , Chao Tian
IPC: H01L27/12 , H01L29/66 , H01L29/786
Abstract: The present disclosure provides an LTPS type TFT and a method for manufacturing the same. The TFT includes a first contact hole and a second contact hole, where the first contact hole and the second contact hole pass through the third insulating layer, the second insulating layer, and a portion of the first insulating layer, such that a portion of the heavily doped area is exposed. In addition, a transparent electrode is electrically connected to the source/drain electrode or the second gate electrode and a portion of the heavily doped area.
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公开(公告)号：US12154470B2
公开(公告)日：2024-11-26
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 , G09G3/3266 , G09G3/36 , H01L29/786
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：US12132120B2
公开(公告)日：2024-10-29
申请号：US17598275
申请日：2021-08-06
Inventor： Hong Cheng , Chao Tian , Yanqing Guan , Guanghui Liu
IPC: H01L29/786 , H01L29/423 , G02F1/1368 , H10K59/121
CPC classification number: H01L29/78696 , H01L29/42384 , G02F1/1368 , H10K59/1213
Abstract: A thin film transistor and a display panel are provided. A first dimension of a first transmission portion electrically connected to a source heavily-doped portion is different from a second dimension of a second transmission portion electrically connected to a drain heavily-doped portion, so that an intensity of an electric field of carriers transmitted by the transmission portion corresponding to the larger one of the first dimension or the second dimension is smaller when the thin film transistor is turned on, thereby reducing the bombardment effect of the carriers on a source or a drain and improving the stability of thin film transistor.
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