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1.发明公开公开(公告)号：US20240319537A1
公开(公告)日：2024-09-26
申请号：US18641465
申请日：2024-04-22
Applicant: BOE Technology Group Co., Ltd.
Inventor： Huiling XUE , Yifan HOU , Shuo ZHANG , Xiangjun PENG , Qiong WU , Xin DUAN , Wei SUN
IPC: G02F1/13357 , G09G3/34
CPC classification number: G02F1/133606 , G02F1/133603 , G09G3/342 , G09G2330/021 , G09G2360/16
Abstract: Disclosed is a backlight diffusion parameter generation method, including: selecting and measuring illumination diffusion data of at least one light emitting region in a plurality of light emitting regions, the illumination diffusion data includes brightness data of a plurality of pixels on a display panel and distance data between positions corresponding to the plurality of pixels and a position where an illuminated light emitting region is located when only one of the light emitting regions is illuminated; preprocessing the illumination diffusion data to obtain an effective pixel; performing function fitting according to data corresponding to a plurality of effective pixels to obtain a point spread function representing a relationship between diffusion brightness and a diffusion distance; and storing a backlight diffusion parameter lookup table, which includes a plurality of sub-tables, each sub-table corresponds to one or more light emitting regions affected when only one light emitting region is illuminated.
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公开(公告)号：US20240273947A1
公开(公告)日：2024-08-15
申请号：US18022788
申请日：2022-03-28
Inventor： Lianghao ZHANG , Wenchao HAN , Wei SUN
CPC classification number: G06V40/19 , G02B27/0093 , G02B27/017
Abstract: A pupil information collection circuit, a pupil information collection method and a display apparatus are provided, belong to the field of display technology, and can solve the problem that the existing pupil information collection circuit occupies a large area. The pupil information collection circuit includes: M infrared light sensors, N analog-to-digital converters and N multiplexing sub-circuits; where M and N are both positive integers, and M is greater than N; every m infrared light sensors are connected to the same analog-to-digital converter through one corresponding multiplexing sub-circuit; m is less than or equal to M; and for the m infrared light sensors connected to the same analog-to-digital converter, a distance between collection ranges of any two adjacent infrared light sensors is greater than a diameter of the pupil.
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公开(公告)号：US20240268009A1
公开(公告)日：2024-08-08
申请号：US18014572
申请日：2021-12-27
Inventor： Yifan SONG , Zhaohui MENG , Wenchao HAN , Wei SUN
IPC: H05B47/11
CPC classification number: H05B47/11
Abstract: In the backlight control circuit; a luminous flux sensing sub-circuit senses luminous flux of a display device, obtains and outputs a first control signal from a first control signal output terminal; a control sub-circuit includes N control units each including a first/second sub-unit; the first sub-unit connects or disconnects an output terminal of the second sub-unit and the backlight control signal output terminal under the control of the first control signal, the second sub-unit connects or disconnects a signal input terminal and the output terminal of the second sub-unit under the control of the second control signal; the N second control signal output terminals provide effective second control signals in a time division manner; conduction thresholds corresponding to the N first sub-units increase sequentially, and when a corresponding relationship between the first control signal and the conduction threshold is met, the first transistor is turned on.
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公开(公告)号：US20240221588A1
公开(公告)日：2024-07-04
申请号：US18286617
申请日：2022-07-01
Applicant: BOE Technology Group Co., Ltd.
Inventor： Shaoru ZHANG , Mingchun LAI , Xin DUAN , Wei SUN , Shuhuan YU
IPC: G09G3/20
CPC classification number: G09G3/2092 , G09G2320/0276 , G09G2320/0673
Abstract: A gamma voltage conversion circuit includes: a first voltage divider circuit having first input terminals and first voltage divider output terminals, wherein each first input terminal is configured to receive a first gamma voltage signal, the first voltage divider circuit is configured to generate first analog voltage signals according to the first gamma voltage signal, and each first voltage divider output terminal is configured to output one of the first analog voltage signals; a Gray code control circuit configured to generate and output a Gray code control signal according to a grayscale value to be displayed; a first encoding circuit configured to generate and output second analog voltage signals according to the Gray code control signal and one of the plurality of first analog voltage signals; and a first output control circuit configured to generate and output an analog grayscale voltage signal according to the second analog voltage signals.
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公开(公告)号：US20240221566A1
公开(公告)日：2024-07-04
申请号：US17913456
申请日：2021-09-15
Inventor： Tiankuo SHI , Xiangjun PENG , Shuo ZHANG , Yan SUN , Xiaomang ZHANG , Xin DUAN , Wei SUN , Shaoru ZHANG
IPC: G09G3/20
CPC classification number: G09G3/20 , G09G2300/026 , G09G2320/0276 , G09G2360/16
Abstract: An image display method includes: obtaining image data of a target image, and obtaining an initial sampling value of a first screen according to the image data, wherein the initial sampling value includes region sampling values of at least two target regions in the first screen, and the region sampling values include a previous region correction value and a current region sampling value; correcting the current region sampling value in a target region sampling value, based on a mapping relationship between the previous region correction value and the target region sampling value, to obtain first data; and determining second data corresponding to a second screen according to the first data, to realize displaying of the target image in a stacked screen according to the first data and the second data, wherein the stacked screen is formed by the first screen and the second screen in an overlapped manner.
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Patent Agency Ranking
公开(公告)号：US20240212633A1
公开(公告)日：2024-06-27
申请号：US17914336
申请日：2021-10-25
Inventor： Wenchao HAN , Wei SUN , Xinle WANG , Yifan SONG , Jing LIU , Xue DONG , Wanzhi CHEN
IPC: G09G3/34
CPC classification number: G09G3/3406 , G09G2320/041 , G09G2320/0626 , G09G2320/0693 , G09G2360/14
Abstract: The present disclosure provides a brightness adjusting method and system for a display apparatus, and belongs to the algorithm field. In the brightness adjusting method for a display apparatus provided by the present disclosure, the display apparatus includes a photosensitive sampling circuit, and the photosensitive sampling circuit includes at least one photosensitive device. The method includes: acquiring a current first sampling signal of each of the at least one photosensitive device; determining a second sampling signal of the photosensitive device according to an initial sampling signal acquired in advance and the first sampling signal; and calibrating the second sampling signal according to a preset calibration algorithm to obtain an actual sampling signal.
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公开(公告)号：US20240046836A1
公开(公告)日：2024-02-08
申请号：US18265643
申请日：2020-12-11
Inventor： Xiangjun PENG , Tiankuo SHI , Chenxi ZHAO , Yifan HOU , Shuo ZHANG , Yan SUN , Zhihua JI , Yanhui XI , Wei SUN , Xin DUAN
IPC: G09G3/20
CPC classification number: G09G3/2003 , G09G2340/06 , G09G2320/0666 , G09G2320/0233 , G09G2320/0242
Abstract: An image processing method and apparatus, an electronic device and a storage medium are provided. The method includes: obtaining an original image, and for each of pixels in the original image, converting first color data of the pixel into second color data corresponding to a set color space (S12); calculating a feature weighted value of the pixel according to the second color data and a preset rule (S14); and determining a uniformity of the pixels based on the feature weighted values to mark the pixels (S16).
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公开(公告)号：US20230410759A1
公开(公告)日：2023-12-21
申请号：US18036205
申请日：2020-12-22
Applicant: BOE Technology Group Co., Ltd.
Inventor： Shaolei ZONG , Xin DUAN , Jigang SUN , Wei SUN , Rui LIU
CPC classification number: G09G3/3607 , G06F3/14 , G09G2340/0407 , G09G2320/0666
Abstract: A driving method and drive circuit of a display panel, a display panel, and a display device. The method includes: receiving initial image data of a frame to be displayed, the resolution of an initial image corresponding to the initial image data being different from the resolution of a display panel; the initial image data including a plurality of pieces of initial gray scale data for displaying the initial image; according to the initial gray scale data in the initial image data, the resolution of the initial image, and the resolution of the display panel, determining target gray scale data corresponding to panel sub-pixels in the display panel; and driving the display panel to display according to the target gray scale data.
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公开(公告)号：US20230049237A1
公开(公告)日：2023-02-16
申请号：US17790749
申请日：2021-08-05
Inventor： Tiankuo SHI , Yifan HOU , Xiangjun PENG , Chenxi ZHAO , Xiaomang ZHANG , Minglei CHU , Xin DUAN , Wei SUN , Ming CHEN , Lingyun SHI
IPC: G09G3/20
Abstract: Provided are a method, apparatus and device for compensating a display screen and a display screen driver board, which belong to the technical field of display. The method comprises: according to the texture complexity of a screen to be displayed by each region (10) among a plurality of regions (10), determining a conversion matrix corresponding to pixels in each region (10)(101); and performing grayscale compensation on pixel points of the screen in each region (10) by using the conversion matrix corresponding to the pixels in each region (10) to obtain a compensated grayscale (102); wherein the compensated grayscale is configured to control the screen display of the plurality of regions (10), so that the uniformity of the screens displayed in a first screen is higher than the uniformity of the screens displayed in a second screen, and the texture complexity of the first screen is lower than the texture complexity of the second screen, the first region and the second region each being one among the plurality of regions (10).
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公开(公告)号：US20220284843A1
公开(公告)日：2022-09-08
申请号：US17555153
申请日：2021-12-17
Inventor： Shaolei ZONG , Jigang SUN , Rui LIU , Wei SUN , Xin DUAN , Junwei ZHANG
IPC: G09G3/20
Abstract: Provided are a shift register unit, a shift register, a display panel and a driving method thereof. The shift register unit includes: an input circuit electrically coupled to an input terminal, a first voltage terminal and a pull-up node; an output circuit electrically coupled to the pull-up node, a first clock terminal, a first scan control terminal, a first output terminal and a second output terminal; and a scan control circuit electrically coupled to the second output terminal, a second voltage terminal and a second scan control terminal. The input circuit is configured to write a first voltage provided by the first voltage terminal into the pull-up node in response to a start signal inputted to the input terminal. The output circuit is configured to output a first clock signal from the first clock terminal via the first output terminal, when the pull-up node is at the first voltage.
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