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公开(公告)号：US11971662B2
公开(公告)日：2024-04-30
申请号：US17083979
申请日：2020-10-29
发明人： Zhichong Wang , Fuqiang Li , Peng Liu , Jing Feng , Xinglong Luan , Guangcai Yuan , Xue Dong
CPC分类号： G03F7/22 , G03F7/2051 , G03F7/70466 , G03F7/70475
摘要： A digital exposure machine and an exposure control method thereof are disclosed. The exposure control method of the digital exposure machine includes: determining a scanning direction of the digital exposure machine, wherein a plurality of sub-pixels in an array include multiple rows of sub-pixels arranged in the scanning direction, the multiple rows of sub-pixels including a first row of sub-pixels in the scanning direction; determining a starting scanning position, the starting scanning position being located on an outer side of the first row of sub-pixels in the scanning direction; and performing a plurality of scannings to expose a display region of the first display substrate to be exposed, wherein a scanning pitch for each of the plurality of scannings is integer times of a pitch of two adjacent rows of sub-pixels of the first display substrate in the scanning direction.
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公开(公告)号：US11189230B2
公开(公告)日：2021-11-30
申请号：US16768395
申请日：2019-12-16
发明人： Zhichong Wang , Fuqiang Li , Jing Feng , Xinglong Luan , Peng Liu
IPC分类号： G09G3/3258
摘要： A display device, a pixel compensation circuit and a driving method thereof are disclosed. The pixel compensation circuit includes: a driving transistor, an initialization circuit, a storage circuit, a first data writing circuit, a second data writing circuit, a compensation circuit and a light emitting control circuit. A first terminal of the storage circuit is coupled to the gate electrode of the drive transistor, and the first data writing circuit is configured to write a data signal to a second terminal of the storage circuit. The second data writing circuit is configured to change a potential of the second terminal of the storage circuit so that a potential of the first terminal of the storage circuit is associated with the data signal. The compensation circuit is configured to charge the first terminal of the storage circuit so that it is associated with a threshold voltage of the drive transistor.
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公开(公告)号：US11328652B2
公开(公告)日：2022-05-10
申请号：US16650306
申请日：2019-03-28
发明人： Peng Liu , Bailing Liu , Fuqiang Li , Zhichong Wang , Jing Feng , Xinglong Luan
IPC分类号： G09G5/00 , G09G3/20 , G11C19/28 , G09G3/3266 , G09G3/36
摘要： A gate driving unit, a gate driving method, a gate driving circuit, a display panel and a display device are provided. The gate driving unit includes a start terminal, a first gate driving signal output terminal, a second gate driving signal output terminal, a pull-up control node control circuit, a pull-up node control circuit, configured to control a potential of a first pull-up node and a potential of a second pull-up node based on the potential of the pull-up control node, a first gate driving signal output circuit, a second gate driving signal output circuit, and a pull-down node control circuit, configured to control and maintain the potential of the pull-down node under the control of a third clock signal and a fourth clock signal, and control to reset the potential of the pull-down node under the control of the potential of the pull-up control node.
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公开(公告)号：US11308838B2
公开(公告)日：2022-04-19
申请号：US17051738
申请日：2020-01-21
发明人： Zhichong Wang , Fuqiang Li , Jing Feng , Peng Liu , Xinglong Luan
摘要： A shift register includes a first transistor, a second transistor, a pull-up node and a switch sub-circuit. A control electrode of the first transistor is connected to a signal input terminal, a first electrode of the first transistor is connected to a first voltage terminal, and a second electrode of the first transistor is connected to a first control node. A control electrode of the second transistor is connected to a reset signal terminal, a first electrode of the second transistor is connected to a second voltage terminal, and a second electrode of the second transistor is connected to the first control node. The switching sub-circuit is connected to the first control node and the pull-up node, and is configured to control a line between the first control node and the pull-up node to be closed and opened.
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公开(公告)号：US20210209988A1
公开(公告)日：2021-07-08
申请号：US16769910
申请日：2020-01-08
发明人： Zhichong Wang , Fuqiang Li , Peng Liu , Jing Feng , Xinglong Luan
摘要： The present disclosure provides a shift register unit and a method for driving the same, a gate driving circuit and a method for driving the same, and a display apparatus. The shift register unit includes an input sub-circuit, a discharging control sub-circuit, a discharging sub-circuit, and an output sub-circuit. The input sub-circuit is configured to transmit an input signal at an input signal terminal to a first node under control of a voltage at a second node. The discharging control sub-circuit is configured to transmit a first clock signal at a first clock signal terminal to the second node under control of a voltage at the first node. The discharging sub-circuit is configured to transmit a first constant voltage signal at a first constant voltage signal terminal to an output signal terminal under control of the voltage at the second node. The output sub-circuit is configured to transmit a second clock signal at a second clock signal terminal to the output signal terminal under control of the voltage at the first node.
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公开(公告)号：US11538786B2
公开(公告)日：2022-12-27
申请号：US16649801
申请日：2019-03-19
发明人： Xinglong Luan , Jing Feng , Fuqiang Li , Zhichong Wang , Peng Liu , Wusheng Li , Chunjing Liu
摘要： A transfer printing method and a transfer printing apparatus. The transfer method includes: transferring a plurality of devices formed on an original substrate to a transfer substrate; obtaining first position information of positions of the plurality of devices on the transfer substrate; obtaining second position information of corresponding positions, on a target substrate, of devices to be transferred; comparing the first position information with the second position information to obtain first target position information recording a first transfer position; and aligning the transfer substrate with the target substrate and performing a site-designated laser irradiation on at least part of devices on the transfer substrate corresponding to the first transfer position, simultaneously, according to the first target position information, so as to transfer the at least part of the devices from the transfer substrate to the target substrate.
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公开(公告)号：US11495178B2
公开(公告)日：2022-11-08
申请号：US17243915
申请日：2021-04-29
发明人： Zhichong Wang , Fuqiang Li , Peng Liu , Xinglong Luan , Jing Feng
IPC分类号： G09G3/3258 , G09G3/3291 , H01L27/32
摘要： A pixel circuit includes a data writing sub-circuit, a light-emitting control sub-circuit and a driving sub-circuit. The data writing sub-circuit is connected to the driving sub-circuit, and is configured to write a data voltage signal into the driving sub-circuit and compensate it, in response to a first gate signal and a second gate signal. The light-emitting control sub-circuit is connected to the driving sub-circuit, and is configured to close a line between a first power supply voltage terminal and a second power supply voltage terminal, in response to a first enable signal and a second enable signal. The driving sub-circuit is configured to provide a driving current to a light-emitting device through the closed line according to the written data voltage signal. Phases of the first enable signal and the first gate signal are opposite, and phases of the second enable signal and the second gate signal are opposite.
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公开(公告)号：US11361703B2
公开(公告)日：2022-06-14
申请号：US16650306
申请日：2019-03-28
发明人： Peng Liu , Bailing Liu , Fuqiang Li , Zhichong Wang , Jing Feng , Xinglong Luan
IPC分类号： G09G5/00 , G09G3/20 , G11C19/28 , G09G3/3266 , G09G3/36
摘要： A gate driving unit, a gate driving method, a gate driving circuit, a display panel and a display device are provided. The gate driving unit includes a start terminal, a first gate driving signal output terminal, a second gate driving signal output terminal, a pull-up control node control circuit, a pull-up node control circuit, configured to control a potential of a first pull-up node and a potential of a second pull-up node based on the potential of the pull-up control node, a first gate driving signal output circuit, a second gate driving signal output circuit, and a pull-down node control circuit, configured to control and maintain the potential of the pull-down node under the control of a third clock signal and a fourth clock signal, and control to reset the potential of the pull-down node under the control of the potential of the pull-up control node.
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公开(公告)号：US11538385B2
公开(公告)日：2022-12-27
申请号：US17355858
申请日：2021-06-23
发明人： Zhichong Wang , Guangcai Yuan , Fuqiang Li , Jing Feng , Xinglong Luan , Peng Liu
IPC分类号： G09G3/20 , G09G3/36 , G09G3/3266 , G06F3/041
摘要： A gate driving unit includes: a pull-up node denoising circuit; a pull-down node control circuit; a pull-up node control circuit; and an energy storage circuit. The pull-up node denoising circuit is configured to, under control of a potential of the pull-down node, control coupling or discoupling between the first pull-up node and the input terminal. The pull-down node control circuit is configured to, under control of a control voltage, control the potential of the pull-down node; under control of a potential of the second pull-up node, control coupling or discoupling between the pull-down node and the input terminal. The pull-up node control circuit is configured to, under control of an anti-leakage control voltage, control coupling or discoupling between the first pull-up node and the second pull-up node, and configured to maintain the potential of the second pull-up node. The energy storage circuit is configured to store electric energy.
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公开(公告)号：US11409202B2
公开(公告)日：2022-08-09
申请号：US17199395
申请日：2021-03-11
发明人： Xinglong Luan , Fuqiang Li , Jing Feng , Zhichong Wang , Peng Liu , Guangcai Yuan , Xue Dong
摘要： Provided is a digital exposure control method, including: performing exposure of different types of functional areas of a substrate to be exposed through one or a plurality of full-page scans, wherein scan speeds for different types of functional areas of the substrate to be exposed are different.
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