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公开(公告)号：US10403190B2
公开(公告)日：2019-09-03
申请号：US15975742
申请日：2018-05-09
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Dongxu Han , Fei Yang , Zhongyuan Wu , Yongqian Li , Tieshi Wang , Zhidong Yuan , Can Yuan , Chi Zhang , Yue Wu
IPC: G09G3/30 , G09G3/20 , G09G3/3208 , G09G5/10 , G09G3/00
Abstract: Disclosed are a method for color complementation on a white organic light emitting diode (WOLED) display device, and a display device. The method comprises: (a) acquiring respective first chromaticity coordinates of each of red (R), green (G), blue (B), and white (W) sub-pixel units for a brightness outputted by the WOLED display device; (b) calculating a first complementary color ratio among the R, G, B, and W sub-pixel units; (c) determining a desired brightness of the W sub-pixel unit, and obtaining respective first complementary color brightnesses of each of the R, G, B, and W sub-pixel units, and in turn determining respective second chromaticity coordinates of each of the R, G, B, and W sub-pixel units corresponding to the respective first complementary color brightness of each of the R, G, B, W sub-pixel units; and (d) implementing in iterations steps (a), (b) and (c), so as to obtain a second complementary color ratio among the R, G, B, W sub-pixel units corresponding to the desired brightness of the W sub-pixel unit. Color complementation of the WOLED display device is carried out depending on the second complementary color ratio among the R, G, B, and W sub-pixel units when the brightness outputted by the WOLED display device reaches the desired brightness of W sub-pixel unit.
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公开(公告)号：US10283072B2
公开(公告)日：2019-05-07
申请号：US15565907
申请日：2017-05-04
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Abstract: A pixel circuit is provided which includes a data writing module, a drive module, a control module and an electrochromic device. The data writing module provides a data signal to the control terminal of the drive module under the control of a first control signal. The drive module drives the electrochromic device for color development or color fading according to a power supply voltage signal under the control of the data signal. The control module controls the conduction between the drive module and the electrochromic device on the basis of a second control signal, and the control module controls the conduction so that the conduction is realized later than the change in the power supply voltage signal. The pixel circuit effectively removes interference of the power supply voltage signal, avoids display fluctuations caused by the change in the power supply voltage signal, and further improves the display effect.
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公开(公告)号：US20190027081A1
公开(公告)日：2019-01-24
申请号：US15975742
申请日：2018-05-09
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Dongxu Han , Fei Yang , Zhongyuan Wu , Yongqian Li , Tieshi Wang , Zhidong Yuan , Can Yuan , Chi Zhang , Yue Wu
IPC: G09G3/20 , G09G3/3208 , G09G5/10
CPC classification number: G09G3/2003 , G09G3/006 , G09G3/3208 , G09G5/10 , G09G2300/0452 , G09G2320/0242 , G09G2320/0626 , G09G2320/0666 , G09G2360/16
Abstract: Disclosed are a method for color complementation on a white organic light emitting diode (WOLED) display device, and a display device. The method comprises: (a) acquiring respective first chromaticity coordinates of each of red (R), green (G), blue (B), and white (W) sub-pixel units for a brightness outputted by the WOLED display device; (b) calculating a first complementary color ratio among the R, G, B, and W sub-pixel units; (c) determining a desired brightness of the W sub-pixel unit, and obtaining respective first complementary color brightnesses of each of the R, G, B, and W sub-pixel units, and in turn determining respective second chromaticity coordinates of each of the R, G, B, and W sub-pixel units corresponding to the respective first complementary color brightness of each of the R, G, B, W sub-pixel units; and (d) implementing in iterations steps (a), (b) and (c), so as to obtain a second complementary color ratio among the R, G, B, W sub-pixel units corresponding to the desired brightness of the W sub-pixel unit. Color complementation of the WOLED display device is carried out depending on the second complementary color ratio among the R, G, B, and W sub-pixel units when the brightness outputted by the WOLED display device reaches the desired brightness of W sub-pixel unit.
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24.发明申请METHOD AND APPARATUS FOR CONVERTING IMAGE FROM RGB SIGNALS TO RGBY SIGNALS 有权将图像从RGB信号转换为RGBY信号的方法和装置公开(公告)号：US20150035852A1
公开(公告)日：2015-02-05
申请号：US14361483
申请日：2013-09-24
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Fei Yang , Chen Zhang
CPC classification number: G09G5/02 , G09G2300/0452 , G09G2340/06
Abstract: A method provided by this disclosure may comprise: converting received RGB input signals into corresponding RGB luminance input values respectively; determining RGBY luminance output values according to a position relationship of corresponding point of the RGB luminance input values and regions formed by RGBY in a chromatic diagram respectively; and converting the determined RGBY luminance output values into corresponding RGBY output signals respectively and outputting the corresponding RGBY output signals.
Abstract translation: 本公开提供的方法可以包括：分别将接收到的RGB输入信号转换成相应的RGB亮度输入值; 根据RGB亮度输入值的对应点的位置关系和由RGBY在色图中形成的区域来确定RGBY亮度输出值; 并将所确定的RGBY亮度输出值分别转换成相应的RGBY输出信号并输出相应的RGBY输出信号。
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公开(公告)号：US12118906B2
公开(公告)日：2024-10-15
申请号：US17764992
申请日：2021-05-28
Inventor： Xiaolong Wei , Fei Yang , Song Meng , Jingbo Xu , Jianbo Xian
IPC: G09G3/00 , G09G3/3233
CPC classification number: G09G3/006 , G09G3/3233 , G09G2300/0842
Abstract: A method for sensing a display panel includes: sensing an electrical characteristic parameter of a driving transistor of a pixel circuit of a sub-pixel in an X-th row in a blank stage between an N-th frame and an (N+1)-th frame, wherein X is a random number, and both N and X are positive integers.
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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：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：US11694624B2
公开(公告)日：2023-07-04
申请号：US17790085
申请日：2021-06-02
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Tangxiang Wang , Fei Yang , Yu Wang
IPC: G09G3/3258 , G09G3/3233
CPC classification number: G09G3/3258 , G09G3/3233 , G09G2300/0819 , G09G2300/0842 , G09G2310/061 , G09G2320/0233 , G09G2320/043 , G09G2320/045
Abstract: A pixel compensation device includes a controller and at least one external compensation circuit. In the external compensation circuit, a first input circuit is configured to transmit a first voltage to a first terminal of a driving sub-circuit in a initialization phase, perform blanking in a pre-storage phase, and transmit a threshold compensation voltage to the first terminal in the data compensation writing phase; a second input circuit is configured to transmit a second voltage to a control terminal of the driving sub-circuit in the initialization phase and the pre-storage phase, so that a voltage of the first terminal changes from the first voltage to the threshold compensation voltage in the pre-storage phase; a sensing circuit is configured to sense the threshold compensation voltage in the data compensation writing phase; and the controller is configured to transmit a data voltage to the control terminal in the data compensation writing phase.
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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：US11238776B2
公开(公告)日：2022-02-01
申请号：US16765932
申请日：2019-04-30
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Fei Yang , Lirong Wang
IPC: G09G3/20 , G09G3/3225
Abstract: A pixel circuit and a driving method thereof, and a display device and a driving method thereof are disclosed. The pixel circuit includes a drive circuit, a reset circuit, and a sensing circuit. A control terminal of the drive circuit is configured to receive a data voltage, a first terminal of the drive circuit is configured to receive a first voltage, and a second terminal of the drive circuit is configured to be electrically connected to a light-emitting element. The reset circuit is electrically connected to the second terminal of the drive circuit, and is configured to reset the second terminal of the drive circuit in response to a first scanning signal. The sensing circuit is electrically connected to the second terminal of the drive circuit, and is configured to connect the second terminal of the drive circuit to a sensing signal line in response to a second scanning signal.
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