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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：US10997945B2
公开(公告)日：2021-05-04
申请号：US16696862
申请日：2019-11-26
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yi Chen
IPC: G09G5/00 , G09G3/3258 , G09G3/3275
Abstract: A display panel and a driving device for the same are disclosed. The driving device includes a timing controller and a source driver IC. The timing controller includes a first interface, a first transmitter and a first receiver which are connected with the first interface, and a first data selector which is configured to control the first transmitter and the first receiver. The source driver IC includes a second interface which is connected with the first interface, a second transmitter and a second receiver which are connected with the second interface, and a second data selector which is configured to control the second transmitter and the second receiver. The first data selector and the second data selector are configured to control the first transmitter to communicate with the second receiver in a first period, and to control the second transmitter to communicate with the first receiver in a second period.
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公开(公告)号：US10937365B2
公开(公告)日：2021-03-02
申请号：US16520542
申请日：2019-07-24
Applicant: BOE Technology Group Co., Ltd.
Inventor： Fei Yang , Yi Chen , Xiaolong Wei
IPC: G09G3/3241 , G09G3/3275
Abstract: The present disclosure provides a temperature compensation method and device, and a display apparatus. In the temperature compensation method, a temperature value of a driving transistor corresponding to a light emitting device in the display apparatus is determined according to a photoelectric display signal of the display apparatus and/or an anode voltage signal of the light emitting device, and an electrical parameter offset of the driving transistor is calculated according to the temperature value, so as to perform real-time temperature compensation on a date line signal such as a gate voltage.
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公开(公告)号：US10762847B2
公开(公告)日：2020-09-01
申请号：US16160720
申请日：2018-10-15
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yi Chen
IPC: G09G3/3258 , G09G3/00 , G09G3/3233
Abstract: A pixel circuit compensation method is provided, including: acquiring a threshold voltage of a driving transistor in each subpixel of a display panel; determining whether there is an abnormal voltage in the threshold voltages; and when there is the abnormal voltage, adjusting a compensation signal to be applied to a first subpixel corresponding to the abnormal voltage.
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Patent Agency Ranking
公开(公告)号：US09875679B2
公开(公告)日：2018-01-23
申请号：US15160572
申请日：2016-05-20
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yi Chen , Guangcai Yuan
CPC classification number: G09G3/2003 , G09G2300/0452 , G09G2320/0233 , G09G2320/0271 , G09G2320/0666 , G09G2320/0673 , G09G2320/0693 , G09G2360/16
Abstract: The present disclosure provides gamma curve adjusting method and device, and the method includes: substituting a preset maximum brightness value, a preset gamma value and gray-scale values into a standard gamma curve calculation formula, to obtain brightness values corresponding to the gray-scale values; selecting N gray-scale values from the gray-scale values, and actually measuring, in the condition of the selected N gray-scale values, gray-scale voltage values required to reach brightness values, respectively corresponding to the selected N gray-scale values, calculated according to the standard gamma curve calculation formula, where N is a positive integer; obtaining a function formula between gray-scale voltage value and brightness value according to brightness values respectively corresponding to the selected N gray-scale values and the actually measured gray-scale voltage values; and calculating gray-scale voltage values corresponding to brightness values smaller than or equal to the preset maximum brightness value, according to the obtained function formula.
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公开(公告)号：US20240194689A1
公开(公告)日：2024-06-13
申请号：US17905002
申请日：2021-11-18
Applicant: BOE Technology Group Co., Ltd.
Inventor： Tianji Li , Fei Yang , Mingi Chu , Yi Chen , Lirong Wang , Yu Wang , Zhiqiang Dong , Jingbo Xu
CPC classification number: H01L27/124 , H01L25/167
Abstract: A driving apparatus is provided. The driving apparatus includes an integrated circuit chip; an input wiring pattern connected to the integrated circuit chip, and configured to be connected to a circuit board; and an output wiring pattern including a plurality of output wires connected to the integrated circuit chip, and configured to be connected to a display panel. The plurality of output wires are arranged in a first bonding region, at least two output wires of the plurality of output wires have different average line widths.
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18.发明申请公开(公告)号：US20220139328A1
公开(公告)日：2022-05-05
申请号：US16955986
申请日：2019-08-27
Applicant: BOE Technology Group Co., Ltd.
Inventor： Fei Yang , Yi Chen , Lirong Wang
IPC: G09G3/3275
Abstract: The present disclosure provides a detection circuit (10) and a driving method, a driving circuit (20), a driving apparatus (100) and a display apparatus. The detection circuit (10) comprises a switching sub-circuit (101) and an analog-to-digital conversion sub-circuit (102). The switching sub-circuit (101) may control on-off states between a sense line (SL) and a reference power terminal (VF), a reset power terminal (RST) and the analog-to-digital conversion sub-circuit (102) according to control signals provided by the external compensation circuit (01). Wherein, a sense signal may include pixel characteristic values or may be a reference power signal.
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19.发明授权公开(公告)号：US10741120B2
公开(公告)日：2020-08-11
申请号：US15567834
申请日：2017-05-19
Applicant: BOE Technology Group Co., Ltd.
Inventor： Yi Chen
IPC: G09G3/3225 , H01L27/32 , G06F1/3296 , G06F1/32
Abstract: An AMOLED display device based ELVDD power supply method and power supply apparatus, and a display device are provided. The method includes: acquiring a data signal of each pixel in one frame of image; comparing a gray scale value corresponding to the data signal of each pixel with at least two threshold gray scale values; taking a minimum threshold gray scale value in the threshold gray scale values greater than the gray scale value corresponding to the data signal of each pixel as a target gray scale value of the pixel; and taking a maximum target gray scale value in the target gray scale values of all pixels as a maximum gray scale value of the one frame of image, and driving the one frame of image by an ELVDD corresponding to the maximum gray scale value.
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公开(公告)号：US10706788B2
公开(公告)日：2020-07-07
申请号：US15746858
申请日：2017-08-09
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
IPC: G09G3/00 , G09G3/3291 , G09G3/3266
Abstract: The present disclosure relates to a compensation method and a compensation apparatus for an OLED pixel and a display apparatus, which relates to the field of display technology. The compensation method for an OLED pixel includes: acquiring a threshold voltage of a driving transistor; acquiring a mobility of the driving transistor according to the threshold voltage of the driving transistor; and compensating the OLED pixel according to the mobility of the driving transistor.
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