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1.发明授权公开(公告)号：US11915661B2
公开(公告)日：2024-02-27
申请号：US17909420
申请日：2021-06-17
发明人： Chenxi Zhao , Xingyu Guo , Tiankuo Shi , Xiaomang Zhang , Xiangjun Peng , Shuo Zhang
IPC分类号： G09G3/34
CPC分类号： G09G3/342 , G09G2300/0842 , G09G2320/0247
摘要： A backlight adjusting method of display device, a backlight adjusting device and a display device are provided, where the display device includes a display panel and a backlight element, the display panel is divided into a plurality of display subareas, the backlight element includes a plurality of backlight subareas, the display subareas and the backlight subareas are in a one-to-one correspondence, the method includes: for each of the backlight subareas, calculating an initial backlight value of the backlight subarea according to pixel information of the display subarea corresponding to the backlight subarea; and determining a first correction backlight value of the backlight subarea according to a preset backlight threshold and an initial backlight value of each of the other backlight subareas adjacent to the backlight subarea.
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公开(公告)号：US20230088891A1
公开(公告)日：2023-03-23
申请号：US17795088
申请日：2021-08-05
发明人： Shuo Zhang , Yanhui Xi , Tiankuo Shi , Xiaomang Zhang , Zhihua Ji , Yan Sun , Chenxi Zhao , Xiangjun Peng , Yifan Hou , Minglei Chu
IPC分类号： G09G3/20 , G02F1/1347
摘要： Provided is a method for determining grayscale data. The method for determining grayscale data includes acquiring a source image; acquiring pixel values of third pixel points by calculating weighted values of channel values of a first pixel point and channel values of second pixel points of corresponding colors; acquiring a first image by replacing pixel values of the second pixel points in the source image with the pixel values of the third pixel points; and determining grayscale data of the first panel and grayscale data of the second panel based on the first image.
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公开(公告)号：US11081081B2
公开(公告)日：2021-08-03
申请号：US16633925
申请日：2019-06-12
发明人： Yue Li , Tiankuo Shi , Zhihua Ji , Chuan Shuai , Lingyun Shi , Xiaomang Zhang , Yifang Chu , Chengqi Zhou , Chuanjun Liu , Zhou Sun , Yilang Sun
摘要： A color gamut conversion method, a color gamut converter, a display device, an image signal conversion method, a computer device and a non-transitory storage medium are disclosed. The method includes: acquiring RGB signals and a preset grayscale value of a white subpixel in each pixel of a converted image according to grayscale values of monochromatic subpixels in each pixel of an original image corresponding to the RGB signals, the converted image is obtained by converting the original image from an RGB gamut to an RGBW gamut; and acquiring a target grayscale value of the white subpixel at least according to a first maximum grayscale of the white subpixels and the preset grayscale. As for a first saturation color patch in the original image, a first maximum grayscale of a white subpixel corresponding to each pixel in the first saturation color patch is equal to a grayscale threshold.
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公开(公告)号：US10809570B2
公开(公告)日：2020-10-20
申请号：US16244649
申请日：2019-01-10
发明人： Zhihua Ji , Tiankuo Shi , Xiaomang Zhang , Yilang Sun , Yanhui Xi , Yifang Chu , Lingyun Shi , Chuanjun Liu
IPC分类号： G09G3/36 , G02F1/13357 , G09G3/34
摘要： A method for acquiring backlight diffusion transmission parameter, a display control method and a display control device are provided. The method includes: selecting a plurality of backlight sources respectively arranged at different backlight regions of a display device and measuring a light diffusion data for each of the plurality of backlight sources, where the light diffusion data includes luminance values of a plurality of pixel points of a screen of the display device and a distance between a position of each pixel point and a position of a certain backlight source of the plurality of backlight sources in the case that only the certain backlight source is turned on; preprocessing the light diffusion data to determine effective pixel points of the plurality of pixel points; fitting the light diffusion data of the effective pixel points, to obtain a point spread function y=ƒ(x) indicating a relationship between y representing a diffusion luminance value and x representing a diffusion distance, where y representing a diffusion luminance value is a luminance value of each pixel point, and x representing a diffusion distance is a distance between a position of the each pixel point and a position of a certain backlight source of the plurality of backlight sources; and determining the point spread function y=ƒ(x) as the backlight diffusion transmission parameter.
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公开(公告)号：US12133056B2
公开(公告)日：2024-10-29
申请号：US17619923
申请日：2021-02-07
发明人： Yanhui Xi , Xiaomang Zhang , Wenchao Han , Yaqian Ji , Wei Sun , Minglei Chu , Xiangjun Peng , Tiankuo Shi , Zhihua Ji , Yan Sun , Yifan Hou , Chenxi Zhao , Shuo Zhang
CPC分类号： H04R3/04 , H04R1/028 , H04R1/227 , H04R1/403 , H04R3/12 , H04R2201/401 , H04R2499/15
摘要： A display device, a sound producing control method, a method and device for determining parameters. The display device includes a plurality of exciters arranged on the display panel, the display panel producing sound on a screen through the plurality of exciters; wherein, the plurality of the exciters are formed as at least one sound producing unit, each sound producing unit includes at least two exciters, and each exciter in the same sound producing unit is connected to a same audio signal input end, in one sound producing unit, a signal filter is provided on an audio transmission line from the audio signal input end to at least one exciter, and used for low frequency compensation of a sound produced by the entire sound producing unit.
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公开(公告)号：US11837187B2
公开(公告)日：2023-12-05
申请号：US17782281
申请日：2021-05-31
发明人： Yanhui Xi , Tiankuo Shi , Xiaomang Zhang , Yan Sun , Shuo Zhang , Zhihua Ji , Wei Sun , Ming Chen
IPC分类号： G09G3/36 , G02F1/1347
CPC分类号： G09G3/3607 , G02F1/1347 , G02F2203/30 , G09G2300/0452 , G09G2320/0626
摘要： A driving method of a display panel, a driving device, a display device, and a storage medium are provided. The driving method of the display panel includes: obtaining an input image that is to be displayed; determining a display picture corresponding to the plurality of display pixels of the display screen according to the input image; determining a first dimming picture corresponding to the plurality of dimming pixels of the dimming screen according to the input image, and processing the first dimming picture to obtain a second dimming picture; providing the display picture to make the dimming screen perform backlight modulation on the display screen according to the second dimming picture, and providing the second dimming picture to make the display screen display the input image according to the display picture.
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公开(公告)号：US11715425B2
公开(公告)日：2023-08-01
申请号：US17556678
申请日：2021-12-20
发明人： Tiankuo Shi , Yifan Hou , Zhihua Ji , Xiaomang Zhang , Wei Sun , Rui Liu , Minglei Chu , Xue Dong , Hao Zhang , Lili Chen
IPC分类号： G09G3/3266 , G09G3/36 , G09G5/00
CPC分类号： G09G3/3266 , G09G3/3618 , G09G5/001 , G09G2360/18
摘要： A display method, a display device, a display system, and a storage medium are provided. The display method includes: obtaining a first fixation coordinate transmitted by an image acquisition device, and obtaining a second fixation coordinate and a current frame of image that are transmitted by a first processor; performing refresh and display by using the current frame of image; determining a type of the current frame of image, and determining, based on the type, whether the first fixation coordinate changes abnormally; and performing refresh and display by using a previous frame of image for non-fixation region in a case that the first fixation coordinate changes abnormally, and performing refresh and display by using a next frame of image transmitted by the first processor in a case that the first fixation coordinate does not change abnormally.
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公开(公告)号：US20210225303A1
公开(公告)日：2021-07-22
申请号：US16769879
申请日：2019-12-12
发明人： Tiankuo Shi , Lingyun Shi , Xiaomang Zhang , Zhihua Ji , Yafei Li , Xin Duan , Xiurong Wang , Wei Sun , Hao Zhang , Ming Chen , Yuxin Bi
摘要： The display technologies relate to a method and computer-readable medium for displaying image and to a display device configured to perform the method for displaying image. The image display method includes acquiring an image for display in an nth frame on a display screen; detecting a first sub-image and a second sub-image within the image, a resolution of the first sub-image being higher than a resolution of the second sub-image; comparing the first sub-image in the nth frame with a corresponding sub-image in an (n−1)th frame; and refreshing a localized area of the display screen positionally corresponding to the first sub-image to display an interpolated sub-image in the localized area.
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9.发明授权公开(公告)号：US10923046B2
公开(公告)日：2021-02-16
申请号：US16392044
申请日：2019-04-23
发明人： Yilang Sun , Tiankuo Shi , Xiaomang Zhang , Zhihua Ji , Yifang Chu , Lingyun Shi , Yifan Hou
摘要： An image display processing method for a display device, an image display processing device, a display device, and a non-volatile storage medium are provided. The display device includes a backlight unit, and the backlight unit is divided into a plurality of display backlight blocks and driven by a local dimming mode. The image display processing method includes: determining at least one boundary backlight block corresponding to a display image in the plurality of display backlight blocks; determining at least one target pixel and at least one background pixel corresponding to each boundary backlight block, and obtaining a backlight value of each boundary backlight block based on a grayscale value of the at least one target pixel and a grayscale value of the at least one background pixel; and displaying the display image.
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10.发明申请公开(公告)号：US20210020116A1
公开(公告)日：2021-01-21
申请号：US16635086
申请日：2019-07-25
发明人： Yilang Sun , Yifang Chu , Zhihua Ji , Tiankuo Shi , Lingyun Shi , Xiaomang Zhang
IPC分类号： G09G3/34
摘要： The present disclosure relates to a method for driving a display device, a driving apparatus, a display device and a computer-readable medium. The method includes: determining backlight signal values of backlight partitions in a backlight module according to input grayscale values of pixels; adjusting the backlight signal values of the backlight partitions by performing peak stretching processing on the backlight partitions in the condition that a total power consumption of the adjusted backlight module is less than a power threshold of the backlight module; determining backlight signal values of the pixels; determining output grayscale values of the pixels according to the backlight signal values of the pixels and the input grayscale values of the pixels; driving a display panel to display an image according to the output grayscale values of the pixels; and driving the backlight module according to the adjusted backlight signal values of the backlight partitions.
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