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公开(公告)号：US11074868B2
公开(公告)日：2021-07-27
申请号：US16823680
申请日：2020-03-19
Inventor： Zhidong Yuan , Yongqian Li , Can Yuan , Song Meng
IPC: G09G3/325 , G09G3/3291 , G09G3/3266
Abstract: Embodiments of the present disclosure provide a pixel circuit, a display panel, and a display device. The pixel circuit includes: a first transistor; a light emitting unit, a cathode being grounded; a second transistor; a third transistor; a fourth transistor; and a capacitor, a first terminal being coupled to the control electrode of the third transistor, and a second terminal being coupled to the second electrode of the third transistor.
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公开(公告)号：US20210225955A1
公开(公告)日：2021-07-22
申请号：US16645088
申请日：2019-09-12
Inventor： Can Yuan , Yongqian Li , Zhidong Yuan , Meng Li
Abstract: An array substrate and a detection method thereof, and a display panel are disclosed. The array substrate includes a plurality of subpixels and a plurality of detection line structures. The plurality of subpixels are arranged in an array of a plurality of rows and a plurality of columns along a first direction and a second direction. Each of the plurality of detection line structures includes at least one first detection line extending along the first direction; adjacent (n)th row and (n+1)th row of subpixels in the array form a subpixel row group, one detection line structure is provided between the (n)th row and (n+1)th row of subpixels in each subpixel row group, and the detection line structure is configured to be connected to the (n)th row and (n+1)th row of subpixels and detect electrical characteristics of first transistors or light-emitting elements in the subpixels.
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公开(公告)号：US20210225246A1
公开(公告)日：2021-07-22
申请号：US16772312
申请日：2020-02-19
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Dongxu Han , Chi Zhang , Tieshi Wang , Zhongyuan Wu , Yongqian Li , Jinxia Hu
IPC: G09G3/20 , G09G3/3208
Abstract: The present disclosure relates to a display method of a display panel, The display method may include obtaining original luminance of three single color subpixels in each of the pixel units based on an image to be displayed; obtaining luminance compensation values of the three single color subpixels that need to be color compensated at a time of obtaining the luminance of the mixed color subpixel as the first substitute luminance; calculating luminance of the mixed color produced by the three single color subpixels in the pixel unit respectively based on each of the luminance of the three single color subpixels after color compensation; and setting input luminance of the single color subpixel having the smallest luminance of the mixed color as 0, and obtaining actual luminance of the other single color subpixels and the mixed color subpixel.
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公开(公告)号：US11017872B2
公开(公告)日：2021-05-25
申请号：US16434200
申请日：2019-06-07
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yongqian Li , Zhidong Yuan
Abstract: A gate driving circuit includes M levels of shift registers. Each level of shift register includes a first register unit and a second register unit. The first register units of the M levels of shift registers are connected to each other in a cascaded manner, the second register units of the M levels of shift registers are connected to each other in a cascaded manner, and an output end of the first register unit and an output end of the second register unit of each level of shift register are electrically connected to an output end of the level of shift register, where M is a positive integer greater than or equal to 1.
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125.发明授权公开(公告)号：US10916598B2
公开(公告)日：2021-02-09
申请号：US16440615
申请日：2019-06-13
Inventor： Meng Li , Yongqian Li , Min He
IPC: H01L21/00 , H01L29/201 , H01L27/32 , G09G3/3233 , H01L27/12
Abstract: Embodiments of the present disclosure provide an OLED array substrate, a method for fabricating an OLED array substrate, an OLED pixel circuit, an OLED array substrate including the OLED pixel circuit, and a display device including the OLED array substrate. The OLED array substrate includes a substrate, an OLED arranged on the substrate, and a photosensor positioned between the OLED and the substrate. The photosensor includes a first electrode, a photosensitive layer, and a second electrode sequentially arranged from bottom to top. The OLED includes an anode, an organic light-emitting layer, and a cathode sequentially arranged from bottom to top. The anode includes a first portion and a second portion.
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Patent Agency Ranking
公开(公告)号：US20200381524A1
公开(公告)日：2020-12-03
申请号：US16613690
申请日：2019-05-20
Applicant: BOE Technology Group Co., Ltd.
Inventor： Pan Xu , Yicheng Lin , Cuili Gai , Ling Wang , Yongqian Li
IPC: H01L29/417 , H01L27/12 , H01L27/32 , H01L29/786 , H01L29/66
Abstract: Embodiments of the present disclosure provide a thin film transistor, a method of manufacturing the same, and a display device. The thin film transistor includes a metal conductive pattern layer, an interlayer insulating layer, and a metal oxide layer; and the metal conductive pattern layer includes: a light shielding pattern, a source signal line, and/or a drain signal line; the metal oxide layer includes: a source electrode, a drain electrode, and an active layer. An orthographic projection of the active layer on the base substrate has an overlapping region with that of the light shielding pattern; the source electrode extends through the interlayer insulating layer to connect to the source signal line, and/or the drain electrode extends through the interlayer insulating layer to connect to the drain signal line.
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公开(公告)号：US10818207B2
公开(公告)日：2020-10-27
申请号：US16086675
申请日：2018-03-02
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yongqian Li , Pan Xu , Quanhu Li
Abstract: A circuitry and a method for detecting a failed pixel, and a display device are provided. The circuitry for detecting the failed pixel includes a display control circuit and a failed pixel detection circuit. The display control circuit is connected to a pixel driving circuit, and configured to control, at detection voltage write-in stage and failed pixel detection stage, the pixel driving circuit to cause light-emitting element not to emit light. The failed pixel detection circuit is connected to first electrode of the light-emitting element via failure sense line, and configured to apply a reference voltage to the first electrode of the light-emitting element via the failure sense line at the detection voltage write-in stage, detect a potential at the first electrode of the light-emitting element at the failed pixel detection stage, and determine, in accordance with the potential, whether the pixel circuit is failed.
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公开(公告)号：US10762844B2
公开(公告)日：2020-09-01
申请号：US16096796
申请日：2018-01-17
Applicant: BOE Technology Group Co., Ltd.
Inventor： Yongqian Li , Pan Xu , Quanhu Li
IPC: G09G5/00 , 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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129.发明授权公开(公告)号：US10699643B2
公开(公告)日：2020-06-30
申请号：US16334114
申请日：2018-01-04
Inventor： Can Yuan , Zhidong Yuan , Yongqian Li , Pan Xu , Wenchao Bao , Min He
IPC: G09G3/3233 , G09G3/3258 , G09G3/3275
Abstract: The present disclosure relates to a pixel driving compensation circuit. The pixel driving compensation circuit can detect and compensate a driving current of a sub-pixel in a pixel unit. The pixel unit includes first, second, and third sub-pixels and the first to third sub-pixels respectively include first, second, and third driving transistors. The pixel driving compensation circuit includes a first switching sub-circuit configured to be turned on in a first period to transmit a driving current output from the first driving transistor to a first detection line, second switching sub-circuit configured to be turned on in a second period to transmit a driving current output from the second driving transistor to a first detection line, and a third switching sub-circuit configured to be turned on in the first period to transmit a driving current output from the third driving transistor to a second detection line.
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130.发明申请公开(公告)号：US20200184872A1
公开(公告)日：2020-06-11
申请号：US16523215
申请日：2019-07-26
Inventor： Can Yuan , Yongqian Li , Zhidong Yuan
Abstract: A shift register circuit, a gate driving circuit and a method for driving the same, and a display apparatus are disclosed. The shift register circuit includes: an input circuit configured to receive an input signal and output the input signal to a pull-up node; an output circuit configured to receive a clock signal and provide an output signal at a signal output terminal based on the clock signal under control of a level at the pull-up node; a pull-down circuit configured to pull down a level at the signal output terminal under control of a level at a pull-down node; and at least one of a feedback circuit or a pull-down control circuit, wherein the feedback circuit is electrically coupled to the pull-up node, and is configured to output a first feedback signal based on the level at the pull-up node; and the pull-down control circuit is electrically coupled to the pull-up node and the pull-down node, and is configured to receive a second feedback signal and control the level at the pull-down node under control of the level at the pull-up node and the second feedback signal.
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