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公开(公告)号：US12114525B2
公开(公告)日：2024-10-08
申请号：US17052092
申请日：2020-04-11
Inventor： Xueguang Hao , Yong Qiao , Xinyin Wu , Hongfei Cheng
IPC: H10K50/86 , H10K59/122 , H10K59/131 , H10K59/38
CPC classification number: H10K50/865 , H10K59/122 , H10K59/131 , H10K59/38
Abstract: Disclosed are an OLED display panel and a display device. The OLED display panel includes a substrate, a plurality of light emitting components arranged in an array, and a light resistance structure between the light emitting components. The light resistance structure prevents the reflected light of the emergent light from the light emitting components, from emitting out from one side of the substrate between the light emitting components.
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公开(公告)号：US11852925B2
公开(公告)日：2023-12-26
申请号：US16963197
申请日：2019-07-25
Inventor： Hongfei Cheng
IPC: G02F1/1339 , G02F1/1333 , G02F1/1362 , G06F3/041
CPC classification number: G02F1/13396 , G02F1/13338 , G02F1/13394 , G02F1/136286 , G06F3/0412
Abstract: 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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公开(公告)号：US11810922B2
公开(公告)日：2023-11-07
申请号：US17228676
申请日：2021-04-12
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Jianbo Xian , Hongfei Cheng , Yong Qiao , Yongda Ma
IPC: H01L27/12 , H01L29/786 , H01L29/417 , H01L29/423 , G02F1/1368
CPC classification number: H01L27/124 , G02F1/1368 , H01L29/41733 , H01L29/42384 , H01L29/786
Abstract: An array substrate and a display device are disclosed. The array substrate includes: a base substrate; and a first electrically conductive layer and a second electrically conductive layer on the base substrate, wherein the base substrate is provided with at least one thin film transistor, each of the at least one thin film transistor includes a gate electrode disposed in the first electrically conductive layer, and a source electrode and a drain electrode disposed in the second electrically conductive layer, and wherein the drain electrode has a comb shape and includes a plurality of drain electrode sub-portions extending parallel to one another, and the source electrode has a comb shape and includes a plurality of source electrode sub-portions extending parallel to one another, and wherein at least one of the drain electrode and the source electrode includes an electrode body and an extending portion, the electrode body overlapping with the gate electrode, and the extending portion overlapping with a portion of the first electrically conductive layer other than the gate electrode.
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4.发明授权公开(公告)号：US11619849B2
公开(公告)日：2023-04-04
申请号：US16326750
申请日：2018-08-16
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Hongfei Cheng
IPC: G02F1/1362 , G02F1/1368
Abstract: An array substrate includes a base substrate; a data line located on the base substrate; a conductive shield layer located on a side of the data line facing away from the base substrate; a pixel electrode located on a side of the data line facing away from the base substrate; and a black matrix located on a side of the conductive shield layer facing away from the data line. The conductive shield layer is not in contact with the pixel electrode and the data line. Each of the conductive shield layer and the black matrix at least partially overlaps the data line in a direction perpendicular to the base substrate.
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公开(公告)号：US11594191B2
公开(公告)日：2023-02-28
申请号：US17556767
申请日：2021-12-20
Inventor： Xueguang Hao , Yongda Ma , Hongfei Cheng
IPC: G09G3/36
Abstract: 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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Patent Agency Ranking
公开(公告)号：US11493813B2
公开(公告)日：2022-11-08
申请号：US15521503
申请日：2016-10-11
Applicant: Boe Technology Group Co., Ltd.
Inventor： Hongfei Cheng , Jianbo Xian
IPC: G02F1/1362 , G02F1/1368 , H01L27/12 , G02F1/136
Abstract: An array substrate and a display device is disclosed. The array substrate includes a base substrate, a plurality of gate lines and a plurality of data lines arranged to intersect each other on the base substrate, a pixel electrode arranged in a region defined by an adjacent gate line and an adjacent data line, and a thin film transistor arranged at an intersection of the gate lines and the data lines. A drain of the thin film transistor is connected with the pixel electrode through a via hole. The gate lines further include a widening portion between adjacent data lines. The widening portion comprises a recess structure. An orthogonal projection of the recess structure on the base substrate at least partly overlaps that of the drain of the thin film transistor on the base substrate.
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7.发明授权公开(公告)号：US11374083B2
公开(公告)日：2022-06-28
申请号：US16609842
申请日：2019-04-26
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Hongfei Cheng
Abstract: An array substrate and a fabrication method thereof, an array substrate motherboard, and a display device are disclosed. The array substrate includes a display region and a bonding region outside the display region. The array substrate further includes: a bonding electrode, located in the bonding region and spaced apart from an outer edge of the bonding region; and an electrostatic barrier line, the electrostatic barrier line has one end electrically connected with the bonding electrode, and the other end extends to the outer edge of the bonding region, and resistivity of the electrostatic barrier line is greater than resistivity of the bonding electrode.
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公开(公告)号：US11139450B2
公开(公告)日：2021-10-05
申请号：US16338165
申请日：2018-06-07
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Hongfei Cheng
Abstract: A display substrate, a manufacturing method thereof and a display device. The display substrate includes a base, at least one protrusion arranged on the base and a packaging layer, the a base includes a display region and a non-display region positioned around the display region, at least one protrusion is arranged on the base in the non-display region, the protrusion is positioned between the base and the packaging layer and the packaging layer covers at least a portion of the protrusion.
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9.发明授权公开(公告)号：US11086423B2
公开(公告)日：2021-08-10
申请号：US16840819
申请日：2020-04-06
Inventor： Pan Li , Hui Li , Hongfei Cheng
Abstract: The present disclosure relates to a touch display substrate. The touch display substrate includes a substrate, data lines, a common electrode layer, first lead-wire lines, second lead-wire lines, a pixel electrode layer, and compensation electrode lines. Data lines are distributed at intervals on one side of the substrate along a row direction, and include first data lines and second data lines. The second lead-wires are connected to the second electrode blocks in columns. The pixel electrode layer includes a plurality of pixel electrodes distributed in an array, and two adjacent columns of the pixel electrodes are disposed on both sides of one of the data lines. The compensation electrode lines are disposed on the same layer as the pixel electrodes, and orthographic projections of the second data lines and the compensation electrode lines on the substrate overlap in one-to-one correspondence.
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10.发明申请公开(公告)号：US20210217899A1
公开(公告)日：2021-07-15
申请号：US16635140
申请日：2019-08-01
Inventor： Hongfei Cheng , Chen Xu
IPC: H01L29/786 , H01L27/12 , H01L29/45 , H01L29/66 , G02F1/1368
Abstract: A thin film transistor, an array substrate, a display device and a method for manufacturing a thin film transistor are provided. The thin film transistor is formed on a base substrate and includes a source; a drain; and a semiconductor active layer having an amorphous silicon layer and one polysilicon portion or a plurality of polysilicon portions, the amorphous silicon layer being contacted with the one polysilicon portion or the plurality of polysilicon portions. The method includes a process of forming a source, a drain, and a semiconductor active layer: wherein forming a semiconductor active layer comprises: forming a first amorphous silicon thin film on a base substrate; and performing a crystallization treatment to the first amorphous silicon thin film to convert a part of the amorphous silicon in the first amorphous silicon thin film into polysilicon, such that a semiconductor active layer comprising one polysilicon portion or a plurality of polysilicon portions are formed.
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