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公开(公告)号：US12127454B2
公开(公告)日：2024-10-22
申请号：US18261880
申请日：2022-09-06
Applicant: BOE Technology Group Co., Ltd.
Inventor： Ying Han , Pan Xu , Xing Zhang , Chengyuan Luo , Donghui Zhao , Mingi Chu
IPC: H10K59/131 , G09G3/3233
CPC classification number: H10K59/131 , G09G3/3233 , G09G2300/0408 , G09G2300/0426 , G09G2300/0452 , G09G2300/0819 , G09G2300/0852 , G09G2310/08 , G09G2320/0233
Abstract: A display substrate includes: a base substrate, a plurality of pixel units and a plurality of initialization voltage signal lines. The pixel units are arranged in an array to form a plurality of rows of pixel units and a plurality of columns of pixel units, at least one pixel unit includes sub-pixels, and at least one sub-pixel includes a light-emitting element and a pixel driving circuit. The initialization voltage signal lines are configured to provide initialization voltage signals to the plurality of rows of pixel units respectively, and are arranged at intervals along a second direction. At least one initialization voltage signal line extends along a first direction. The plurality of rows of pixel units include a (2n−1)th row and a 2nth row and pixel driving circuits of the (2n−1)th row and pixel driving circuits of the 2nth rows share a common initialization voltage signal line.
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公开(公告)号：US12087217B2
公开(公告)日：2024-09-10
申请号：US17767728
申请日：2021-05-12
Applicant: BOE Technology Group Co., Ltd.
IPC: G09G3/3225
CPC classification number: G09G3/3225 , G09G2320/0233
Abstract: Disclosed are a display apparatus and a display method therefor. The display method includes: a frame of to-be-displayed image data is received; the frame of to-be-displayed image data is segmented into N frames of sub-image data corresponding to the N display panels in a one-to-one correspondence; for each display panel, an initial peak brightness parameter corresponding to the display panel is calculated according to the sub-image data corresponding to the display panel; for each display panel, a target peak brightness parameter corresponding to the display panel is calculated according to the initial peak brightness parameter corresponding to the display panel and an initial peak brightness parameter corresponding to an adjacent display panel; and display is performed by each display panel according to the sub-image data and the target peak brightness parameter corresponding to the display panel.
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公开(公告)号：US11017713B2
公开(公告)日：2021-05-25
申请号：US16621310
申请日：2019-05-10
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Mingi Chu , Zhongyuan Wu
Abstract: The present disclosure relates to the field of display technologies, and provides a pixel circuit including: a display pixel driving circuit, a sensing line, and at least one non-display pixel driving circuit. The display pixel driving circuit is configured to drive a display sub-pixel, and includes a first driving transistor. The sensing line is coupled to an output end of the first driving transistor, and configured to sense a current of an output end of the first driving transistor; each of the non-display pixel driving circuits is configured to drive one non-display sub-pixel, and the non-display pixel driving circuit includes a second driving transistor. An output end of the second driving transistor is coupled to the sensing line to input a compensation current to the sensing line.
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4.发明授权公开(公告)号：US11011118B2
公开(公告)日：2021-05-18
申请号：US15776977
申请日：2017-11-30
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
IPC: G06F3/038 , G09G5/00 , G09G3/3283
Abstract: The present application discloses a pixel-driving circuit in a display panel. The pixel-driving circuit includes a first transistor being provided with a fixed voltage, a driving transistor having a gate configured to receive the fixed voltage controlled by the first transistor and a drain coupled to a first power supply, a capacitor coupled between the gate and a source of the driving transistor, a light-emitting device coupled to the source and a second power supply, a second transistor having a drain coupled to the source of the driving transistor and a source coupled to a data line, a sensing sub-circuit coupled to the data line in a first period, and a driving sub-circuit coupled to the data line in a second period. The sensing sub-circuit and the driving sub-circuit are configured to connect to the data line in a time-divisional manner respectively for sensing and compensating the pixel-driving circuit.
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5.发明申请公开(公告)号：US20200327855A1
公开(公告)日：2020-10-15
申请号：US15776977
申请日：2017-11-30
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
IPC: G09G3/3283
Abstract: The present application discloses a pixel-driving circuit in a display panel. The pixel-driving circuit includes a first transistor being provided with a fixed voltage, a driving transistor having a gate configured to receive the fixed voltage controlled by the first transistor and a drain coupled to a first power supply, a capacitor coupled between the gate and a source of the driving transistor, a light-emitting device coupled to the source and a second power supply, a second transistor having a drain coupled to the source of the driving transistor and a source coupled to a data line, a sensing sub-circuit coupled to the data line in a first period, and a driving sub-circuit coupled to the data line in a second period. The sensing sub-circuit and the driving sub-circuit are configured to connect to the data line in a time-divisional manner respectively for sensing and compensating the pixel-driving circuit.
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Patent Agency Ranking
公开(公告)号：US12027093B2
公开(公告)日：2024-07-02
申请号：US18547883
申请日：2021-12-30
Applicant: BOE Technology Group Co., Ltd.
IPC: G09G3/20
CPC classification number: G09G3/2074 , G09G2300/026 , G09G2300/0452 , G09G2320/0233 , G09G2320/0626 , G09G2330/021 , G09G2360/16
Abstract: A method for compensating display of a spliced screen, including: obtaining a picture to be displayed; obtaining a theoretical brightness gain of at least one sub-display region in a plurality of sub-display regions; obtaining an actual brightness gain of the central region according to the theoretical brightness gain of at least part of the sub-display regions, and obtaining actual brightness gains of a plurality of first nodes in the non-central region according to the theoretical brightness gain of at least part of the sub-display regions; obtaining an actual brightness gain of at least part of the non-central region by using a bilinear interpolation method according to the actual brightness gains of the plurality of first nodes and an actual brightness gain of at least one second node on the central region; and compensating the picture to be displayed based on an actual brightness gain of the picture to be displayed.
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公开(公告)号：US11900885B2
公开(公告)日：2024-02-13
申请号：US17908021
申请日：2021-09-17
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Ying Han , Xuehuan Feng , Yicheng Lin , Pan Xu , Guoying Wang , Xing Zhang , Zhan Gao , Mingi Chu
IPC: G09G3/32 , G09G3/3266 , H10K59/121 , H10K59/131 , G09G3/3275 , G11C19/28 , H01L27/12
CPC classification number: G09G3/3266 , G09G3/3275 , G11C19/28 , H01L27/124 , H10K59/1213 , H10K59/1216 , H10K59/1315 , G09G2300/0842 , G09G2310/0278 , G09G2310/0286 , G09G2310/061 , G09G2320/0233
Abstract: A display panel includes: a substrate, sub-pixels and a gate drive circuit. The sub-pixel includes a pixel drive circuit. The gate drive circuit includes cascaded shift registers, and a shift register is electrically connected to pixel drive circuits in a row of sub-pixels. The gate drive circuit further includes cascade input signal lines and cascade display reset signal lines. The cascade input signal line is configured to connect a shift signal terminal and an input signal terminal of two different shift register, and the cascade display reset signal line is configured to connect a shift signal terminal and a display reset signal terminal of two different shift register. The display panel has sub-pixel regions for arranging the sub-pixels and first gap regions each located between two adjacent columns of sub pixel regions: the cascade display reset signal lines and the cascade input signal lines are disposed in different first gap regions.
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公开(公告)号：US11176867B2
公开(公告)日：2021-11-16
申请号：US16620134
申请日：2019-04-15
Applicant: BOE Technology Group Co., Ltd.
Inventor： Fei Yang , Mingi Chu , Lirong Wang
IPC: G09G3/20 , G09G3/3208
Abstract: Disclosed are a chroma compensation method and apparatus, a display device and a storage medium. The chroma compensation method includes: acquiring an initial color of a display sub-pixel in a target pixel unit under a target luminance, and a target color of the target pixel unit under the target luminance, the target pixel unit including: at least two display sub-pixels of different light colors; acquiring a complementary color gain of each of the display sub-pixels under the target luminance based on the target color and the initial color of each of the display sub-pixels; and compensating for chrominance of the target pixel unit based on the complementary color gain of each of the display sub-pixels under the target luminance.
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公开(公告)号：US10971050B2
公开(公告)日：2021-04-06
申请号：US15776989
申请日：2017-12-11
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yicheng Lin , Mingi Chu
IPC: G09G3/32 , G09G3/20 , G09G3/3225
Abstract: The present application discloses a method for driving a display panel for displaying images. The method includes determining multiple subpixels in a bright area of an image to be displayed by the display panel. The bright area is an image display area having a luminance value maintained greater than a threshold luminance value for a duration longer than a threshold duration. Additionally, the method includes driving the multiple subpixels to emit light alternatingly in a period of alternate light-emission for displaying the image. Furthermore, the method includes driving all adjacent subpixels surrounding any one subpixel that is not emitting light during the period of alternate light-emission to provide luminance rendering to the one subpixel such that the luminance value of the bright area is greater than the threshold luminance value.
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10.发明授权公开(公告)号：US10741146B2
公开(公告)日：2020-08-11
申请号：US15771937
申请日：2017-09-20
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Danna Song , Song Meng , Mingi Chu
IPC: G09G3/30 , G09G5/10 , G09G3/3258 , G09G3/3291
Abstract: The present disclosure discloses an electroluminescent display screen and brightness uniformity compensation method and system thereof, wherein the method comprises: performing test modeling based on a correspondence between an aging rule of an electroluminescent diode in the display screen and an aging rule of a thin film transistor (TFT) in the display screen to acquire a brightness uniformity compensation model; acquiring a first compensation parameter and a second compensation parameter required for compensating the TFT, and acquiring a current brightness ratio of the electroluminescent diode through invoking the brightness uniformity compensation model based on the compensation parameters; performing brightness uniformity compensation on the display screen based on the acquired current brightness ratio of the electroluminescent diode.
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