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公开(公告)号：US20240023375A1
公开(公告)日：2024-01-18
申请号：US18372884
申请日：2023-09-26
Applicant: BOE Technology Group Co., Ltd.
Inventor： Yipeng Chen , Li Wang , Lujiang Huangfu
IPC: H10K59/121 , G09G3/3291 , H10K59/126
CPC classification number: H10K59/1216 , G09G3/3291 , H10K59/126 , H10K59/1213
Abstract: An organic light emitting diode display substrate, comprises: a base substrate, and a first data line, a driving thin film transistor and an energy storage capacitor, wherein the energy storage capacitor comprises a first capacitor plate and a second capacitor plate disposed opposite to each other, and the second capacitor plate is electrically connected to a gate of the driving thin film transistor, in a direction away from the base substrate, the first capacitor plate is disposed between the first data line and the second capacitor plate. The display substrate further comprises a shielding portion. The shielding portion is between the second capacitor plate and the first data line in a direction perpendicular to the base substrate, and an orthographic projection of the shielding portion on the base substrate at least partially overlap an orthographic projection of the first data line on the base substrate.
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132.发明授权公开(公告)号：US11790850B2
公开(公告)日：2023-10-17
申请号：US17791965
申请日：2021-05-17
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Lujiang Huangfu , Li Wang , Can Zheng , Libin Liu
IPC: G09G3/3258
CPC classification number: G09G3/3258 , G09G2300/0819 , G09G2300/0842 , G09G2310/0286 , G09G2310/061 , G09G2310/08 , G09G2320/0233 , G09G2320/0247
Abstract: A pixel driving circuit includes a reset sub-circuit, a compensation sub-circuit, a light-emitting control sub-circuit and a driving sub-circuit. The reset sub-circuit is configured to transmit an initialization signal received from an initialization signal terminal to the light-emitting control sub-circuit. The light-emitting control sub-circuit is configured to transmit the initialization signal to the first node. The compensation sub-circuit is configured to transmit the initialization signal from the first node to a second node so as to reset a voltage of the second node. The driving sub-circuit is configured to open a conductive path from a first voltage signal terminal to the initialization signal terminal during a process of resetting the voltage of the second node.
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公开(公告)号：US11723252B2
公开(公告)日：2023-08-08
申请号：US17289130
申请日：2020-09-29
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Zhenzhen Li , Lujiang Huangfu , Yue Liu
CPC classification number: H10K59/353 , H10K71/00 , H10K59/352
Abstract: The present disclosure relates to an organic light-emitting display substrate and a display device. The organic light-emitting display substrate includes a plurality of rows of sub-pixels, each of which includes first sub-pixels, second sub-pixels and third sub-pixels repeatedly arranged, and two adjacent rows of sub-pixels are arranged in a staggered manner, in every two adjacent rows of sub-pixels: a first sub-pixel in one row of sub-pixels and a second sub-pixel and a third sub-pixel that are adjacent to the first sub-pixel in the other row of sub-pixels, form a pixel unit, and white light brightness centers of the pixel units in a same row are located on a same straight line.
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公开(公告)号：US11574960B2
公开(公告)日：2023-02-07
申请号：US17170457
申请日：2021-02-08
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Hongli Wang , Lujiang Huangfu
Abstract: An array substrate and an electronic device are disclosed. The array substrate includes a plurality of repeating regions, each repeating region includes a plurality of block groups, in each repeating region, the second base edge of the second color sub-pixel block and the third base edge of the third color sub-pixel block in the second block group are located on a first virtual line, the second base edge of the second color sub-pixel block and the third base edge of the third color sub-pixel block in the first second block group are located on a second virtual line, the first color sub-pixel block in the first block group and the first color sub-pixel block in the second block group are located between the first virtual line and the second virtual line.
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公开(公告)号：US20220375409A9
公开(公告)日：2022-11-24
申请号：US17649809
申请日：2022-02-03
Inventor： Yi Zhang , Kai Zhang , Minghua Xuan , Young Yik Ko , Lujiang Huangfu
IPC: G09G3/3258 , G09G3/3208 , G09G3/3233 , G09G3/3266 , G09G3/3275
Abstract: A pixel circuit, a display panel, a display device, and a driving method. The pixel circuit includes a light emitting element, a driving transistor, a light emitting control circuit, a reset circuit, a threshold compensation circuit, a first data write circuit, and an initializing circuit. The reset circuit includes a first transistor, the first data write circuit includes a third transistor, and a channel length-width ratio of the first transistor is greater than a channel length-width ratio of the third transistor.
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Patent Agency Ranking
公开(公告)号：US11502143B2
公开(公告)日：2022-11-15
申请号：US16639039
申请日：2019-07-12
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xing Fan , Hao Gao , Lujiang Huangfu , Yan Fan , Xiangmin Wen
Abstract: A display back panel may include a substrate, an insulating layer disposed on one side of the substrate and including a plurality of recesses, the plurality of recesses including a bottom surface, a first electrode disposed on a surface of the insulating layer away from the substrate, a pixel defining layer disposed on a surface of the first electrode away from the substrate and including a plurality of openings, a light-emitting layer disposed in the plurality of openings and covering the first electrode, and a second electrode disposed on a surface of the light-emitting layer away from the substrate. Therein, the first electrode may reflect waveguide light laterally propagated by the light-emitting layer, thereby improving a light-emitting efficiency of the light-emitting layer. Further, the reflected waveguide light may not be absorbed by the second electrode, thereby enhancing an external quantum effect of the light-emitting layer.
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公开(公告)号：US11462591B2
公开(公告)日：2022-10-04
申请号：US16622045
申请日：2018-12-28
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Libin Liu , Qian Yang , Hongli Wang , Lujiang Huangfu
Abstract: A display substrate and a display device. The display substrate comprises a first sub-pixel (111), a second sub-pixel (112), and a first spacer (0101). A line connecting the center (C1) of the first sub-pixel (111) and the center (C2) of the second sub-pixel (112) is a center line (CL1); the center line (CL1) is not perpendicular to a first direction (X); the first direction (X) is at least one of the row direction or the column direction. The first spacer (0101) is disposed between the first sub-pixel (111) and the second sub-pixel (112), and the extension direction (E01) of first spacer (0101) between the first sub-pixel (111) and the second sub-pixel (112) is not perpendicular to the first direction (X). Therefore, the display substrate can improve the different viewing angle color cast and improve the display quality.
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公开(公告)号：US20220310707A1
公开(公告)日：2022-09-29
申请号：US17289130
申请日：2020-09-29
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Zhenzhen Li , Lujiang Huangfu , Yue Liu
Abstract: The present disclosure relates to an organic light-emitting display substrate and a display device. The organic light-emitting display substrate includes a plurality of rows of sub-pixels, each of which includes first sub-pixels, second sub-pixels and third sub-pixels repeatedly arranged, and two adjacent rows of sub-pixels are arranged in a staggered manner, in every two adjacent rows of sub-pixels: a first sub-pixel in one row of sub-pixels and a second sub-pixel and a third sub-pixel that are adjacent to the first sub-pixel in the other row of sub-pixels, form a pixel unit, and white light brightness centers of the pixel units in a same row are located on a same straight line.
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139.发明授权公开(公告)号：US11387297B2
公开(公告)日：2022-07-12
申请号：US16092895
申请日：2018-01-10
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Lujiang Huangfu , Xing Fan , Dan Wang , Xiaowei Xu , Liangjian Li
Abstract: An OLED display substrate, a manufacturing method thereof and a display device are provided. The OLED display substrate includes a TFT array layer, a first electrode, a pixel definition layer, an OEL layer and a second electrode arranged on a base substrate. The pixel definition layer is configured to define a plurality of subpixel regions. A reflection structure surrounds each subpixel region and is capable of reflecting light beams from the OEL layer and beyond an escaping cone in such a manner as to enable at least parts of the light beams to enter the escaping cone.
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公开(公告)号：US11264430B2
公开(公告)日：2022-03-01
申请号：US16600316
申请日：2019-10-11
Inventor： Lujiang Huangfu , Libin Liu , Fengli Ji , Xiaodan Jin , Yinan Liang , Mei Li , Jie Zhang , Chang Luo , Jianpeng Wu , Hongli Wang
IPC: H01L27/32 , G09G3/3225 , G09G3/3233 , H01L51/52
Abstract: A pixel arrangement structure are provided, which includes a plurality of repeating units. Each of the plurality of repeating units includes two first sub-pixels, one second sub-pixel, and one third sub-pixel. Each of the first sub-pixel, the second sub-pixel and the third sub-pixel includes a pixel defining layer, the pixel defining layer includes a pixel defining layer opening to define an effective light emitting region of each sub-pixel; a plurality of first sub-pixels are arranged along the second direction to form a plurality of first sub-pixel groups, orthographic projections of pixel defining layer openings of the first sub-pixels in adjacent ones of the plurality of first sub-pixel groups on a straight line parallel to the second direction do not overlap each other.
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