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公开(公告)号：US09830890B2
公开(公告)日：2017-11-28
申请号：US15515349
申请日：2015-09-29
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
CPC classification number: G09G5/393 , G09G3/20 , G09G3/2092 , G09G5/10 , G09G2320/0233 , G09G2320/0285 , H03M7/30 , H03M7/3059 , H03M7/3079
Abstract: A method and device for compressing and decompressing data information, a drive compensation method and device, and a display device. The method for compressing data information includes: acquiring data information corresponding to a sub pixel unit; establishing a distribution function model according to the data information; obtaining a valid option value section according to the distribution function model and a valid threshold value; and dividing the valid option value section into N compression sections, and compressing data information corresponding to each of the compression sections to M times of data information corresponding to all the sub pixel units according to a storage length P of the data information corresponding to the sub pixel unit to obtain N compressed data information blocks.
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公开(公告)号：US20240046879A1
公开(公告)日：2024-02-08
申请号：US17762347
申请日：2021-05-26
Applicant: BOE Technology Group Co., Ltd.
Inventor： Fei Yang , Song Meng , Zhiqiang Dong , Yi Chen , Jingbo Xu , Jianbo Xian
IPC: G09G3/3258 , G09G3/3291
CPC classification number: G09G3/3258 , G09G3/3291 , G09G2310/027 , G09G2320/045 , G09G2320/0693 , G09G2330/028
Abstract: A data driving integrated circuit includes a digital-to-analog converter configured to receive a respective digital data signal from a timing controller and convert the respective digital data signal to a respective analog data signal, which is output to a display panel through a respective data line; an analog-to-digital converter configured to receive a respective analog sensing signal from a respective sensing line in the display panel and convert respective analog sensing signal to a respective digital sensing signal, which is output to the timing controller; a first sensing switch configured to control a connection between a first reference voltage line and the respective sensing line; a second sensing switch configured to control a connection between a second reference voltage line and the respective sensing line; and a third sensing switch configured to control the connection between the analog-to-digital converter and the respective sensing line.
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公开(公告)号：US11335266B2
公开(公告)日：2022-05-17
申请号：US16765846
申请日：2019-09-29
Inventor： Song Meng , Fei Yang , Chun Cao , Xiaolong Wei
IPC: G09G3/00 , G09G3/3258 , G09G3/3275
Abstract: A compensation method for a display panel and a display device are provided. The display panel includes a plurality of sub-pixels, and at least one of the plurality of sub-pixels includes a sensing capacitor. The method includes: obtaining a first voltage value and a second voltage value of the sensing capacitor, obtaining a temperature change amount of a sub-pixel corresponding to the sensing capacitor according to the first voltage value and the second voltage value of the sensing capacitor, determining a value of a compensation parameter of the sub-pixel according to the temperature change amount of the sub-pixel and a preset correspondence between the temperature change amount of the sub-pixel and the compensation parameter; and performing a compensation on a driving voltage of the sub-pixel according to the value of the compensation parameter as determined.
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公开(公告)号：US11302254B2
公开(公告)日：2022-04-12
申请号：US17044249
申请日：2020-04-14
IPC: G09G3/3258
Abstract: The present disclosure discloses a pixel circuit compensation method and device, and a display device. The method includes: when the display panel is in a preset display state, sensing a preset mobility compensation value corresponding to a driving transistor in the pixel circuit; according to the preset mobility compensation value, adjusting an initial mobility compensation value corresponding to the driving transistor to a target mobility compensation value, wherein a difference between the target mobility compensation value and the preset mobility compensation value is less than a threshold; based on the target mobility compensation value, when the display panel is in a non-display state, compensating a mobility of the driving transistor in a preset compensation manner.
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公开(公告)号：US11238793B2
公开(公告)日：2022-02-01
申请号：US16712045
申请日：2019-12-12
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Song Meng , Zhongyuan Wu
IPC: G09G3/3233 , G09G3/3225
Abstract: A pixel compensation method includes: detecting driving transistors of pixels to obtain present characteristic values of the driving transistors of the pixels; extracting historical compensation characteristic values of the driving transistors of the pixels obtained in a previous display cycle of a screen; calculating a present compensation characteristic value of at least one driving transistor of the pixels according to a present characteristic value and a historical compensation characteristic value corresponding to the driving transistor of the pixels; and compensating a corresponding pixel according to the present compensation characteristic value of the driving transistor of the pixels.
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Patent Agency Ranking
36.发明授权公开(公告)号：US11011114B2
公开(公告)日：2021-05-18
申请号：US16335009
申请日：2018-08-31
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Song Meng , Zhongyuan Wu , Danna Song
IPC: G09G3/3258 , G09G3/20
Abstract: The present disclosure provides a compensation method, device, circuit for a display panel, a display panel and a display device. The display panel includes a plurality of pixel circuits, each of which comprises a driving transistor. The compensation method includes: obtaining a first compensation grayscale value GL1 and a second compensation grayscale value GL2 of a pixel circuit to be compensated; obtaining a first compensation luminance L1, a first gate-source voltage Vgs1 of the driving transistor, a second compensation luminance L2, and a second gate-source voltage Vgs2 of the driving transistor, wherein L1 and Vgs1 correspond to GL1, and L2 and Vgs2 correspond to GL2; obtaining a theoretical luminance L corresponding to an input grayscale value GL; calculating the compensation gate-source voltage V′gs by using L, L1, Vgs1, L2, and Vgs2; and obtaining an output compensation grayscale value GL′ according to V′gs.
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公开(公告)号：US10937351B2
公开(公告)日：2021-03-02
申请号：US15774175
申请日：2017-10-13
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Abstract: A Gamma-curve correction method for a display apparatus, and a display apparatus. The method includes: determining a standard Gamma curve according to the display apparatus; selecting a plurality of test gray scale values on the standard Gamma curve, and acquiring a plurality of target brightness values corresponding to the plurality of test gray scale values; adjusting an input gray scale value of the display apparatus to obtain a plurality of test-correction gray scale values, where the test-correction gray scale values are corresponding input gray scale values when display brightness of the display apparatus is equal to respective target brightness; generating an association relationship between input gray scale values and correction gray scale values, according to the plurality of test gray scale values and the plurality of test-correction gray scale values; and adjusting the input gray scale value to a corresponding correction gray scale value, according to the association relationship.
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38.发明授权公开(公告)号：US10798372B2
公开(公告)日：2020-10-06
申请号：US16097815
申请日：2018-02-12
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Quanhu Li , Yicheng Lin , Yu Wang , Yue Wu , Song Meng , Yongqian Li , Pan Xu
IPC: G09G5/00 , H04N13/398 , H04N13/302 , G09G3/36 , G09G3/3233 , H04N13/341 , H04N13/315 , G09G3/00 , G09G3/20
Abstract: A 3D display driving method, a 3D display driving device and a display device are provided. The 3D display driving method includes, during each display period: within a display duration (2n−1)th for a left-eye image of a left-eye image frame, scanning a first gate line in an nth group of gate lines, and within a part of the display duration (2n−1)th for the left-eye image, scanning a second gate line in the nth group of gate lines; and within a display duration (2n)th for a right-eye image of a right-eye image frame, scanning the second gate line in the nth group of gate lines, n being a positive integer smaller than or equal to M, and M being an integer greater than 1.
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39.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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公开(公告)号：US20200160784A1
公开(公告)日：2020-05-21
申请号：US16529352
申请日：2019-08-01
Inventor： Haixia Xu , Zhidong Yuan , Wenchao Bao , Can Yuan , Song Meng
IPC: G09G3/3233
Abstract: The present disclosure proposes a display control method and device, and a display panel. The display control method includes: acquiring a temperature compensation value of a row of pixel units in a display panel on which temperature compensation is currently performed; acquiring, according to the temperature compensation value, a brightness ratio corresponding to the temperature compensation value; and compensating for brightness of a row of pixel units in the display panel on which temperature compensation is not performed according to the brightness ratio.
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