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公开(公告)号：US20230087495A1
公开(公告)日：2023-03-23
申请号：US16966592
申请日：2019-07-25
发明人： Hongfei CHENG , Pan LI
IPC分类号： G02F1/1362 , G02F1/1343 , G02F1/1333
摘要： An array substrate includes at least one driving electrode region and at least one sensing electrode region which are alternately arranged along a row direction and are disconnected from each other, each driving electrode region and each sensing electrode region include one first common electrode and one second common electrode respectively, at least one driving electrode line continuously passes through the driving electrode region and the sensing electrode region alternately arranged along the row direction. The first common electrode in the driving electrode region is connected to the driving electrode line through at least one first through hole, the second common electrode in the sensing electrode region is disconnected from the driving electrode line.
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公开(公告)号：US20220310010A1
公开(公告)日：2022-09-29
申请号：US17293086
申请日：2020-09-14
发明人： Hongfei CHENG , Xueguang HAO , Hui LI , Chen XU , Pan LI
IPC分类号： G09G3/3233 , G09G3/3266 , H01L27/32
摘要： A display substrate and a display device. The display substrate includes a base substrate and a plurality of sub-pixels, a first power line and an electrical connection layer on the base substrate. Each sub-pixel includes a pixel circuit, and a plurality of sub-pixels are arranged in a plurality of rows and a plurality of columns along a first direction and a second direction. The sub-pixel is electrically connected with the light-emitting element through the electrical connection layer, and the portion, which is in the display region of the display substrate, of the electrical connection layer is not overlapped with the first power line in a direction perpendicular to the base substrate.
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公开(公告)号：US20220230572A1
公开(公告)日：2022-07-21
申请号：US17556697
申请日：2021-12-20
发明人： Xueguang HAO , Hongfei CHENG , Yongda MA
摘要： A display panel and a display device are provided, the display panel includes a gate driving circuit, a first pixel module, and a second pixel module, the first pixel module includes a first pixel circuit, and the second pixel module includes a second pixel circuit; the gate driving circuit respectively provides corresponding gate driving signals for the first pixel circuit and the second pixel circuit; in the first display region, the number of columns of the pixel circuit included by the first pixel module is greater than the maximum number of columns of the pixel circuit included by the second pixel module in the second display region; the display panel further includes a loading structure arranged in a non-display region; the load structure is electrically connected to the gate wiring; the gate wiring is wiring between the gate driving circuit and the second pixel circuit for providing the corresponding gate driving signals to the second pixel circuit.
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公开(公告)号：US20220223118A1
公开(公告)日：2022-07-14
申请号：US17556767
申请日：2021-12-20
发明人： Xueguang HAO , Yongda MA , Hongfei CHENG
IPC分类号： G09G3/36
摘要： The present disclosure relates to the field of display technologies, and provides a gamma circuit. The gamma circuit includes: a plurality of positive gamma voltage output terminals, a plurality of negative gamma voltage output terminals in one-to-one correspondence with the plurality of positive gamma voltage output terminals, and a plurality of voltage conversion circuits. Each of the voltage conversion circuits is configured to output a negative gamma reference voltage to the negative gamma voltage output terminal based on a positive gamma reference voltage output by the positive gamma voltage output terminal corresponding to the negative gamma voltage output terminal.
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公开(公告)号：US20220115540A1
公开(公告)日：2022-04-14
申请号：US17417514
申请日：2020-11-05
发明人： Hongfei CHENG
IPC分类号： H01L29/786 , H01L29/66 , H01L29/417
摘要： The present disclosure provides a thin film transistor and a fabrication method thereof, an array substrate and a fabrication method thereof, and a display panel. The method for fabricating a thin film transistor includes: forming an active layer including a first region, a second region and a third region on a substrate; forming a gate insulating layer on a side of the active layer away from the substrate; forming a gate electrode on a side of the gate insulating layer away from the active layer; and ion-implanting the active layer from a side of the gate electrode away from the active layer, so that the first region is formed into a heavily doped region, the second region is formed into a lightly doped region, and the third region is formed into an active region.
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6.发明申请公开(公告)号：US20210193007A1
公开(公告)日：2021-06-24
申请号：US16985925
申请日：2020-08-05
发明人： Hongfei CHENG , Xing YAO
摘要： A shift register circuit and a driving method thereof, a gate driving circuit and a display panel are provided. The shift register circuit includes: an input terminal; a first reference voltage terminal; a second reference voltage terminal; a first clock signal terminal; a second clock signal terminal; an output terminal; an input circuit, a first control circuit; a second control circuit; a third control circuit; a compensation circuit, a first node, a second node, a third node and an output circuit, the compensation circuit is configured to compensate a voltage of at least one of the first node, the second node, and the third node in response to the second clock signal.
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公开(公告)号：US20230138001A1
公开(公告)日：2023-05-04
申请号：US17914780
申请日：2021-11-03
发明人： Xueguang HAO , Yongda MA , Hongfei CHENG
IPC分类号： G09G3/3233 , H10K59/121
摘要： A display panel and a display device are provided. The display panel includes a plurality of pixel units, each pixel unit includes a pixel circuit and a light-emitting element, the pixel circuit is configured to drive the light-emitting element, the pixel circuit includes a driving transistor, the plurality of pixel units include a first pixel unit and a second pixel unit, the first pixel unit is configured to emit light of a first color, the second pixel unit is configured to emit light of a second color, the driving transistor of the pixel circuit of the first pixel unit includes a first channel, and the driving transistor of the pixel circuit of the second pixel unit includes a second channel, a width-to-length ratio of the first channel is greater than that of the second channel, and a shape of the first channel is different from that of the second channel.
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公开(公告)号：US20210407360A1
公开(公告)日：2021-12-30
申请号：US17213261
申请日：2021-03-26
发明人： Hongfei CHENG
IPC分类号： G09G3/20
摘要： Provided are a gate drive unit, a gate drive circuit, a drive method and a display apparatus. The gate drive unit includes an input control module, an input module, a potential pull-down module, a first output module, a second output module, an isolation module, a first node and a second node, wherein the input control module controls operation of the input module under action of a second input signal and a first clock signal; the input module transmits a second clock signal to the second node under control of the input control module; the potential pull-down module pulls down a potential of the second node under action of a potential of the first node; the first output module outputs a first output signal under action of the potential of the first node, the potential of the second node and the first clock signal.
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公开(公告)号：US20220383655A1
公开(公告)日：2022-12-01
申请号：US17043725
申请日：2020-04-20
发明人： Xueguang HAO , Hongfei CHENG , Yongda MA
摘要： The present disclosure provides a display backplane, a method for manufacturing the same and a full-screen fingerprint identification display device. The display backplane includes a substrate; a circuit layer disposed on a surface of the substrate; a light emitting device layer disposed on a surface of the circuit layer away from the substrate; and a plurality of fingerprint identification photodetectors disposed in at least one of the circuit layer and the light emitting device layer.
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公开(公告)号：US20210405419A1
公开(公告)日：2021-12-30
申请号：US16963197
申请日：2019-07-25
发明人： Hongfei CHENG
IPC分类号： G02F1/1339 , G06F3/041 , G02F1/1362 , G02F1/1333
摘要： A display panel includes an array substrate, a color filter substrate, a liquid crystal layer and a plurality of spacers located between the array substrate and the color filter substrate. The plurality of spacers include at least one first spacer, at least one second spacer and at least one third spacer. The at least one first spacer is on the array substrate, the at least one second spacer and the at least one third spacer are on the color filter substrate and respectively overlap the at least one first spacer in a direction perpendicular to the display panel. The at least one first spacer, the at least one second spacer and the at least one third spacer have a first height, a second height and a third height respectively along the direction perpendicular to the display panel, and the second height is different from the third height.
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