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公开(公告)号：US20210210018A1
公开(公告)日：2021-07-08
申请号：US16768395
申请日：2019-12-16
Inventor： Zhichong WANG , Fuqiang LI , Jing FENG , Xinglong LUAN , Peng LIU
IPC: G09G3/3258
Abstract: 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：US20250131968A1
公开(公告)日：2025-04-24
申请号：US18689081
申请日：2022-08-23
Applicant: BOE Technology Group Co., Ltd.
Inventor： Zhichong WANG , Peng LIU , Jing FENG
IPC: G11C19/28 , G09G3/3233 , H10K59/131
Abstract: Disclosed is a shift register, comprising: a first control sub-circuit, which provides a signal of a signal input end for a first node; a second control sub-circuit, which provides a signal of a second power source end or a signal of the first clock signal end for the second node; a third control sub-circuit, which provides a signal of the second clock signal end or a signal of the first power source end for a fourth node and maintains the potential of the fourth node; a first output sub-circuit, which provides the signal of the first power source end or the signal of the second power source end for a first signal output end; and a second output sub-circuit, which provides the signal of the first power source end or the signal of the second power source end for a second signal output end.
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公开(公告)号：US20250061860A1
公开(公告)日：2025-02-20
申请号：US18724736
申请日：2021-12-30
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Zhichong WANG , Jing FENG , Peng LIU
IPC: G09G3/3258
Abstract: A pixel group includes a plurality of pixel circuits and a compensation circuit; where each of the pixel circuits is connected to the compensation circuit; each of the pixel circuits includes a driving transistor; the compensation circuit includes a third transistor; and the compensation circuit is capable of loading a threshold voltage of the third transistor to a control end of the driving transistor; and a channel region of the third transistor has a width to length ratio of a3, a channel region of the driving transistor has a width to length ratio of a1, and a3/a1 is in a range of 1-1.05.
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公开(公告)号：US20220157223A1
公开(公告)日：2022-05-19
申请号：US17355637
申请日：2021-06-23
Applicant: BOE Technology Group Co., Ltd.
Inventor： Zhichong WANG , Xinglong LUAN , Peng LIU , Jing FENG , Gaoming SUN , Yi OUYANG
IPC: G09G3/32
Abstract: The present application discloses a pixel circuit and a driving method thereof, and a display device. The circuit includes: a first initialization sub-circuit, a data writing circuit, a light emitting control circuit, a capacitor circuit, a drive transistor, a compensation circuit, a light emitting element, and a holding circuit; the first initialization sub-circuit is connected to a second terminal of the capacitor circuit and a gate of the drive transistor; the data writing circuit and the holding circuit are connected to a first terminal of the capacitor circuit; the light emitting control circuit is connected to a first electrode of the light emitting element and a second electrode of the drive transistor; a first electrode of the drive transistor is connected to the first power supply; a second electrode of the light emitting element is connected to a second power supply.
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公开(公告)号：US20210343242A1
公开(公告)日：2021-11-04
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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Patent Agency Ranking
公开(公告)号：US20200243013A1
公开(公告)日：2020-07-30
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：US20230120765A1
公开(公告)日：2023-04-20
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
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：US20210389682A1
公开(公告)日：2021-12-16
申请号：US17199395
申请日：2021-03-11
Applicant: BOE Technology Group Co., Ltd.
Inventor： Xinglong LUAN , Fuqiang LI , Jing FENG , Zhichong WANG , Peng LIU , Guangcai YUAN , Xue DONG
Abstract: 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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公开(公告)号：US20210225679A1
公开(公告)日：2021-07-22
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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10.发明申请公开(公告)号：US20180190681A1
公开(公告)日：2018-07-05
申请号：US15690029
申请日：2017-08-29
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Jiushi WANG , Zhanfeng CAO , Qi YAO , Jing FENG
IPC: H01L27/12
CPC classification number: H01L27/1244 , H01L27/1225 , H01L27/127 , H01L27/1288 , H01L29/41733 , H01L29/66765 , H01L29/7869
Abstract: The present disclosure provides an array substrate and a method for manufacturing the same and a display panel and a display device comprising the same. The method for manufacturing the array substrate provided in the present disclosure comprises: forming a first metal layer; forming an uneven structure on a surface of the first metal layer; providing a photoresist on the surface of the first metal layer where the uneven structure has been formed; and exposing and developing the photoresist and etching the first metal layer so as to form a first metal pattern.
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