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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
Inventor： Xinglong Luan , Jing Feng , Fuqiang Li , Zhichong Wang , Peng Liu , Wusheng Li , Chunjing Liu
Abstract: 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
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Zhichong Wang , Fuqiang Li , Peng Liu , Xinglong Luan , Jing Feng
IPC: G09G3/3258 , G09G3/3291 , H01L27/32
Abstract: 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
Inventor： Peng Liu , Bailing Liu , Fuqiang Li , Zhichong Wang , Jing Feng , Xinglong Luan
IPC: G09G5/00 , G09G3/20 , G11C19/28 , G09G3/3266 , G09G3/36
Abstract: 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：US11893936B2
公开(公告)日：2024-02-06
申请号：US17796118
申请日：2021-05-07
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Zhichong Wang , Fuqiang Li , Peng Liu , Jing Feng , Xinglong Luan
IPC: G09G3/3233 , G09G3/3275
CPC classification number: G09G3/3233 , G09G3/3275 , G09G2300/0819 , G09G2300/0842 , G09G2300/0861 , G09G2310/0202 , G09G2310/08 , G09G2320/0233
Abstract: A pixel driving circuit includes a driving sub-circuit, a signal writing sub-circuit, a compensation sub-circuit, a light-emitting control sub-circuit and an initialization sub-circuit. The signal writing sub-circuit is configured to write a voltage of a data signal terminal into the driving sub-circuit as a data voltage. The light-emitting control sub-circuit is configured to, in conjunction with the driving sub-circuit, drive a light-emitting device to emit light. The initialization sub-circuit is configured to transmit the voltage from the data signal terminal to the compensation sub-circuit as a reset voltage. The compensation sub-circuit is configured to transmit the reset voltage from the initialization sub-circuit to the driving sub-circuit to reset the driving sub-circuit.
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公开(公告)号：US11669016B2
公开(公告)日：2023-06-06
申请号：US17214678
申请日：2021-03-26
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Jing Feng , Xinglong Luan , Zhichong Wang , Peng Liu , Guangcai Yuan
CPC classification number: G03F7/7015 , G02B3/0037 , G02B17/023 , G02B17/0615 , G02B26/0833 , G02B26/0891
Abstract: A digital exposure apparatus includes a lens array, the lens array at least including a first lens unit and a second lens unit, a light transposition assembly arranged on an exit light path of the second lens unit, and the light transposition assembly being used for controlling a light exiting from the second lens unit to be transposed with respect to an exposure direction of the digital exposure apparatus. When the digital exposure apparatus is used for exposure, a light passing through the first lens unit and a light penetrating through the second lens unit are needed to expose the same position for multiple times.
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Patent Agency Ranking
公开(公告)号：US11232749B2
公开(公告)日：2022-01-25
申请号：US17265828
申请日：2020-05-14
Inventor： Zhichong Wang , Fuqiang Li , Jing Feng , Peng Liu , Xinglong Luan , Gaoming Sun
IPC: G09G3/3233
Abstract: Disclosed are a pixel circuit and a driving method thereof, an array substrate and a display device. The pixel circuit includes: a driving circuit, including a control terminal, a first terminal and a second terminal, and configured to control a driving current flowing through the first terminal and the second terminal for driving a light-emitting element to emit light; and input circuit, configured to transmit a reset voltage and a data signal in response to a first scan signal; a reset circuit, configured to apply the reset voltage to the control terminal in response to a second scan signal; a compensation circuit, configured to store the data signal and to electrically connect the control terminal with the second terminal in response to a third scan signal; and a data writing circuit, configured to apply the data signal to the compensation circuit in response to the third scan signal.
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公开(公告)号：US20210132501A1
公开(公告)日：2021-05-06
申请号：US17083979
申请日：2020-10-29
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Zhichong Wang , Fuqiang Li , Peng Liu , Jing Feng , Xinglong Luan , Guangcai Yuan , Xue Dong
Abstract: 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：US10923033B2
公开(公告)日：2021-02-16
申请号：US16600908
申请日：2019-10-14
Inventor： Zhichong Wang , Fuqiang Li , Jing Feng , Peng Liu , Xinglong Luan
IPC: G09G3/3258
Abstract: Disclosed are a pixel circuitry, a method for driving the same and a display device. The pixel circuitry includes a light-emitting element, a driving circuit, a compensation control circuit, an initialization circuit, an energy storage circuit, a writing control circuit and a light-emitting control circuit. The driving circuit is configured to drive the light-emitting element to emit light. The initialization circuit is configured to write an initialization voltage to a control end of the driving circuit to control the driving circuit to be turned on or off. The compensation control circuit is configured to turn on the driving circuit and perform threshold voltage compensation on the driving circuit. The writing control circuit is configured to write a data voltage inputted by a data line to a second end of the energy storage circuit and write a reference voltage to the second end of the energy storage circuit.
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公开(公告)号：US10461178B2
公开(公告)日：2019-10-29
申请号：US15329212
申请日：2016-07-25
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Shi Shu , Jing Feng , Chuanxiang Xu , Xiaolong He , Jiushi Wang
IPC: H01L21/02 , H01L29/786 , H01L29/66 , H01L27/12
Abstract: A method for manufacturing an array substrate, an array substrate and a display panel are provided. The method includes forming patterns of a gate metal layer and a gate insulating layer successively on a base plate, forming a pattern of a semiconductor layer, where the pattern of the semiconductor layer comprises a pattern of an active region and a pattern of a pixel electrode region, the semiconductor layer comprises an insulative oxide layer and a semiconductive oxide layer stacked on the insulative oxide layer, and the insulative oxide layer is located between the gate insulating layer and the semiconductive oxide layer, forming a pattern of a source and drain metal layer, and subjecting the semiconductive oxide layer in the pixel electrode region to plasma treatment, to convert the semiconductive oxide layer in the pixel electrode region into a conductor.
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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
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Zhichong Wang , Fuqiang Li , Peng Liu , Jing Feng , Xinglong Luan , Guangcai Yuan , Xue Dong
CPC classification number: G03F7/22 , G03F7/2051 , G03F7/70466 , G03F7/70475
Abstract: 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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