-
公开(公告)号：US11362118B2
公开(公告)日：2022-06-14
申请号：US16756350
申请日：2019-11-15
Inventor： Juncheng Xiao , Chao Tian , Yanqing Guan , Haiming Cao
IPC: H01L27/00 , H01L27/12 , G09G3/3225 , G09G3/36
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.
-
公开(公告)号：US10977979B1
公开(公告)日：2021-04-13
申请号：US16965360
申请日：2020-06-19
Inventor： Juncheng Xiao , Chao Tian , Yanqing Guan , Yongxiang Zhou
IPC: G09G3/20
Abstract: A GOA circuit and a display panel are provided. The GOA circuit includes N stage GOA units, and an n-th stage GOA unit comprises a forward scan control module, a reverse scan control module, a pull-up module, a pull-down module, and a function module, wherein 2
-
公开(公告)号：US10885862B2
公开(公告)日：2021-01-05
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.
-
公开(公告)号：US12165609B2
公开(公告)日：2024-12-10
申请号：US17613579
申请日：2021-09-06
Inventor： Haiming Cao , Chao Tian , Yanqing Guan , Fei Ai , Guanghui Liu , Zhifu Li
IPC: G09G3/36
Abstract: The present application provides a display panel in which transistors in an input pull-up module, a stage transfer output module, and an output pull-up module are provided as P-type low temperature polysilicon thin film transistors, and a transistor in an output pull-down module is provided as an N-type metal oxide thin film transistor.
-
公开(公告)号：US12046172B2
公开(公告)日：2024-07-23
申请号：US17434790
申请日：2021-07-15
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.
-
Patent Agency Ranking
公开(公告)号：US20230274688A1
公开(公告)日：2023-08-31
申请号：US17260994
申请日：2020-09-11
Inventor： Haiming Cao , Yanqing Guan
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2300/0842 , G09G2320/0233 , G09G2330/021 , G09G2320/0214
Abstract: A driving circuit, a driving method thereof, and a display device are provided, including making a first switch connected to a gate of a driving transistor be in a first state during a previous frame, and be in a second state in a current frame, and making a second switch in series with the first switch be in the second state in the previous frame, and be in the first state in the current frame, wherein the first state is one of a conducting-and-cut-off switching state or a constantly conducting state, and the second state is the other of the conducting-and-cut-off switching state or the constantly conducting state.
-
公开(公告)号：US10540937B2
公开(公告)日：2020-01-21
申请号：US15745098
申请日：2017-11-27
Inventor： Juncheng Xiao , Yanqing Guan
IPC: G09G3/36 , G02F1/1345 , H01L27/12
Abstract: This invention provides a GOA circuit comprising m cascaded GOA units. An n-th GOA unit includes an output control module, a forward/backward scanning control module, a node signal control module, a second pull-down circuit, a first pull-down circuit and a pull-up circuit. The forward/backward scanning control module control the GOA circuit to perform a forward or a backward scanning. The output control module controls an output of an n-th gate driving signal. The first pull-down circuit comprises a seventh thin film transistor. The second pull-down circuit comprises a fifth thin film transistor. The node signal control module control the fifth thin film transistor. The pull-up circuit includes an eighth thin film transistor. After the LCD panel is powered off, the second global control signal becomes a low level. This invention can eliminate a ghost image in the LCD panel when electricity is powered off, and improve user experience.
-
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.
-
公开(公告)号：US12142191B2
公开(公告)日：2024-11-12
申请号：US17260994
申请日：2020-09-11
Inventor： Haiming Cao , Yanqing Guan
IPC: G09G3/32
Abstract: A driving circuit, a driving method thereof, and a display device are provided, including making a first switch connected to a gate of a driving transistor be in a first state during a previous frame, and be in a second state in a current frame, and making a second switch in series with the first switch be in the second state in the previous frame, and be in the first state in the current frame, wherein the first state is one of a conducting-and-cut-off switching state or a constantly conducting state, and the second state is the other of the conducting-and-cut-off switching state or the constantly conducting state.
-
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.
-
-
-
-
-
-
-
-
-
Search Results
33
records
(took 0.018 seconds)
