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公开(公告)号：US11450267B2
公开(公告)日：2022-09-20
申请号：US16621937
申请日：2019-03-27
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Dongxu Han , Tieshi Wang , Zhongyuan Wu , Yongqian Li , Pan Xu , Jinxia Hu
IPC: G09G3/3225
Abstract: Brightness compensation method and apparatus for pixel point are provided. The compensation method includes measurement processes of N times, N≥2. Each measurement process includes: obtaining images displayed on the display screen under different gray-scale signals, and extracting brightness of pixel points in the images; calculating difference parameters between brightness of the pixel points and brightness of the reference pixel point under the different gray-scale signals; fitting the difference parameters of the pixel points with initial brightness of the pixel points under the different gray-scale signals, to obtain initial brightness-difference parameter curves of the pixel points; calculating compensation parameters of the pixel points; during an (i)th measurement process, i=2 to N, images displayed on the display screen under the different gray-scale signals are obtained by compensating the initial brightness of the pixel points under the different gray-scale signals based on the compensation parameters obtained during an (i−1)th measurement process.
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52.发明授权公开(公告)号：US11257957B2
公开(公告)日：2022-02-22
申请号：US16620663
申请日：2018-06-26
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Pan Xu , Yicheng Lin , Cuili Gai , Baoxia Zhang , Quanhu Li , Ling Wang
IPC: H01L21/00 , H01L29/786 , H01L27/12 , H01L29/417 , H01L29/66
Abstract: The present disclosure provides a thin film transistor, a method of fabricating the same, an array substrate and a display device. The thin film transistor includes: source and drain electrodes in a same layer arranged on a base substrate; an active layer on the base substrate and in contact with the source and drain electrodes; a gate insulating layer at a side of the active layer away from the base substrate; a gate electrode at a side of the gate insulating layer away from the base substrate. Orthographic projections of the gate electrode, the source electrode and the drain electrode on the base substrate do not overlap with one another, and a region of the active layer not covered by the gate electrode, the source electrode and the drain electrode and at a side of the active layer away from the base substrate is subjected to conductorization.
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公开(公告)号：US20210367026A1
公开(公告)日：2021-11-25
申请号：US16344013
申请日：2018-04-02
Applicant: BOE Technology Group Co., Ltd.
Inventor： Pan Xu , Xiaoyun Liu
Abstract: The present application provides an array substrate. The array substrate includes a base substrate; a plurality of light emitting elements on the base substrate; a plurality of driving thin film transistors for driving light emission of the plurality of light emitting elements, each of the plurality of driving thin film transistors including a first active layer; one or more power supply lines configured to supply a driving current respectively to the plurality of light emitting elements; and a light shielding layer configured to shield light from irradiating on the first active layer, the light shielding layer being electrically connected to at least one of the one or more power supply lines.
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公开(公告)号：US11114027B2
公开(公告)日：2021-09-07
申请号：US16063932
申请日：2017-11-21
Inventor： Can Yuan , Yongqian Li , Pan Xu , Zhidong Yuan , Zhenfei Cai
IPC: G09G3/3233
Abstract: The present application discloses a pixel circuit, including a data-input sub-circuit configured to apply a data voltage from the data line to a first node; a reset sub-circuit configured to reset the second node; a driving-control sub-circuit coupled to a first power supply, the first node, and the second node; a power-storage sub-circuit configured to regulate a voltage difference between the first node and the second node; a light-emitting device coupled to the second node and a second power supply; and a sampling sub-circuit coupled to the data line and the second node and being configured to control the data line to connect with the second node for collecting a voltage signal containing information about electrical properties of the driving-control sub-circuit and being used to generating a compensation voltage for compensating any drifts of the electrical properties.
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公开(公告)号：US20210134903A1
公开(公告)日：2021-05-06
申请号：US16884461
申请日：2020-05-27
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Ying Han , Yicheng Lin , Pan Xu , Ling Wang , Guoying Wang , Xing Zhang
Abstract: The pixel substrate and a pixel panel are provided. The display substrate includes: a display structure layer, a cover plate on the display structure layer and a plurality of pixel definition layers and an anti-light crosstalk layer between the display structure layer and the cover plate, where the pixel definition layers are arranged on a lower surface of the cover plate at intervals and are in a one-to-one correspondence to sub-pixel units of the display substrate, the anti-light crosstalk layer surrounds each pixel definition layer, where a reflective component is between the anti-light crosstalk layer and the display structure layer, the reflective component includes an inclined surface configured to reflect light from the display structure layer to the pixel definition layer.
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Patent Agency Ranking
公开(公告)号：US10964772B2
公开(公告)日：2021-03-30
申请号：US16623712
申请日：2019-06-04
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Pan Xu , Yicheng Lin , Ling Wang , Cuili Gai , Guoying Wang , Yongqian Li
Abstract: An OLED plate comprises: a substrate; a plurality of OLED devices, disposed on one side of the substrate and located in the display area; and an auxiliary cathode, disposed on the one side of the substrate and at least located in the peripheral area. Each of the OLED devices includes a reflective anode, an organic material functional layer and a transparent cathode disposed in a direction distal from the substrate in sequence. A portion of the auxiliary cathode located in the peripheral area is electrically connected to transparent cathodes of the plurality of OLED devices, and resistivity of the auxiliary cathode is less than resistivity of a transparent cathode of the plurality of OLED devices.
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公开(公告)号：US20200234644A1
公开(公告)日：2020-07-23
申请号：US16096796
申请日：2018-01-17
Applicant: BOE Technology Group Co., Ltd.
Inventor： Yongqian Li , Pan Xu , Quanhu Li
IPC: G09G3/3258
Abstract: The present application provides a pixel driving circuit, including a driving sub-circuit, a compensation sub-circuit, a first switching sub-circuit, and a second switching sub-circuit. The driving sub-circuit has a control terminal electrically connected to a first terminal of the second switching sub-circuit, a first terminal electrically connected to a light-emitting element, and a second terminal electrically connected to a power source; the compensation sub-circuit has a first terminal electrically connected to the first terminal of the driving sub-circuit, and a second terminal electrically connected to the control terminal of the driving sub-circuit; the first switching sub-circuit has a control terminal electrically connected to a first signal input terminal, a first terminal electrically connected to the first terminal of the driving sub-circuit, and a second terminal electrically connected to an initial voltage input terminal; and the second switching sub-circuit has a control terminal electrically connected to a second signal input terminal, a first terminal electrically connected to the control terminal of the driving sub-circuit, and a second terminal electrically connected to a data signal input terminal.
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公开(公告)号：US20200176541A1
公开(公告)日：2020-06-04
申请号：US16623712
申请日：2019-06-04
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Pan Xu , Yicheng Lin , Ling Wang , Cuili Gai , Guoying Wang , Yongqian Li
Abstract: An OLED plate comprises: a substrate; a plurality of OLED devices, disposed on one side of the substrate and located in the display area; and an auxiliary cathode, disposed on the one side of the substrate and at least located in the peripheral area. Each of the OLED devices includes a reflective anode, an organic material functional layer and a transparent cathode disposed in a direction distal from the substrate in sequence. A portion of the auxiliary cathode located in the peripheral area is electrically connected to transparent cathodes of the plurality of OLED devices, and resistivity of the auxiliary cathode is less than resistivity of a transparent cathode of the plurality of OLED devices.
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公开(公告)号：US20200098839A1
公开(公告)日：2020-03-26
申请号：US16417105
申请日：2019-05-20
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Pan Xu , Yicheng Lin , Ling Wang , Guoying Wang
Abstract: A display panel, a manufacturing method thereof and a display device are disclosed. The display panel includes a display backplane and a display cover assembled to be a cell. The display backplane includes a first base substrate, a pixel circuit layer, a first electrode layer, a light-emitting layer, a second transparent electrode layer, and a plurality of first pixel regions stacked on the first base substrate. The display cover includes a second base substrate, a plurality of optical sensing components and a plurality of second pixel regions on the second base substrate, the plurality of optical sensing components being arranged in the plurality of second pixel regions in one to one correspondence.
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公开(公告)号：US10546851B2
公开(公告)日：2020-01-28
申请号：US15509714
申请日：2016-09-21
Applicant: BOE TECHNOLOGY GROUP CO., LTD
Inventor： Pan Xu , Yongqian Li , Quanhu Li
IPC: H01L27/02 , G02F1/1362 , H01L27/12 , H01L29/788
Abstract: The present disclosure provides a substrate, including: a first line; a second line; a thin-film transistor (TFT) between the first line and the second line, having a floating gate structure, a source electrode electrically connected to the first line, and a drain electrode electrically connected to the second line; and a first point-discharge structure between the floating gate structure of the TFT and the first line.
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