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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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4.发明申请公开(公告)号：US20200035170A1
公开(公告)日：2020-01-30
申请号：US16453502
申请日：2019-06-26
发明人： Tiankuo Shi , Lingyun Shi , Zhihua Ji , Chuanjun Liu , Guangquan Wang , Ming Chen
IPC分类号： G09G3/34
摘要： The preset disclosure provides a driving method of a backlight, a backlight driving device, a backlight, a display assembly and a virtual reality apparatus. The backlight includes multiple rows of light sources arranged in an array. The driving method includes: after a preset time has elapsed from receipt of a synchronous display signal for each frame of image, lighting the light sources row by row, wherein each row of light sources is successively lit at least twice.
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公开(公告)号：US11917167B2
公开(公告)日：2024-02-27
申请号：US17764359
申请日：2021-05-08
发明人： Zhihua Ji , Tiankuo Shi , Xiaomang Zhang , Chingwen Kung , Rui Liu , Yifan Hou , Minglei Chu , Yanhui Xi , Yan Sun , Chenxi Zhao , Xiangjun Peng , Shuo Zhang
IPC分类号： H04N11/02 , H04N19/172 , H04N19/176
CPC分类号： H04N19/172 , H04N19/176
摘要： The present disclosure provides an image compression method, including steps of: acquiring a human-eye fixation point on an original image, and determining a fixation region and a non-fixation region of the original image according to the human-eye fixation point; and compressing the non-fixation region, and generating a compressed image according to the fixation region and the compressed non-fixation region. The present disclosure also provides an image display method, an image compression apparatus, an image display apparatus, and a computer readable medium.
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6.发明授权公开(公告)号：US11647349B2
公开(公告)日：2023-05-09
申请号：US17485116
申请日：2021-09-24
发明人： Yanhui Xi , Xiaomang Zhang , Zhihua Ji , Tiankuo Shi , Yan Sun , Shuo Zhang , Xiangjun Peng , Yifan Hou , Chenxi Zhao , Minglei Chu
CPC分类号： H04S7/301 , H04R5/02 , H04R5/04 , H04R2205/022 , H04R2499/15
摘要： A display device, a method for realizing panoramic sound, a non-transitory storage medium are provided. The method includes: performing space model parameter modification on preset space model based on application environment; determining middle audio source information based on video source information as read, determining side audio source information based on video source information and modified space model parameter; determining top audio source information based on sound image position information and side audio source information; controlling middle sound production circuit to produce sound based on middle audio source information, two side sound production circuits to produce sound based on side audio source information, top sound production circuit to produce sound based on top audio source information.
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7.发明授权公开(公告)号：US11417285B2
公开(公告)日：2022-08-16
申请号：US16959201
申请日：2019-12-17
发明人： Yilang Sun , Tiankuo Shi , Zhihua Ji , Xiaomang Zhang , Yifan Hou
IPC分类号： G09G3/34
摘要： Provided are a method for controlling backlight of a display device, a backlight controller for a display device, and a display device. The method includes: identifying a light emission luminance of each backlight partition in a backlight module according to display luminances of the plurality of display partitions; when the plurality of backlight partitions include two adjacent backlight partitions and an absolute value of a difference between the light emission luminance of the two adjacent backlight partitions is greater than a target threshold, adjusting the light emission luminance of at least one of the two adjacent backlight partitions such that the absolute value of the difference between the light emission luminances of the two adjacent backlight partitions is decreased; and after the luminance is adjusted, controlling light-emitting of each backlight partition.
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公开(公告)号：US10950188B2
公开(公告)日：2021-03-16
申请号：US16453502
申请日：2019-06-26
发明人： Tiankuo Shi , Lingyun Shi , Zhihua Ji , Chuanjun Liu , Guangquan Wang , Ming Chen
摘要： The preset disclosure provides a driving method of a backlight, a backlight driving device, a backlight, a display assembly and a virtual reality apparatus. The backlight includes multiple rows of light sources arranged in an array. The driving method includes: after a preset time has elapsed from receipt of a synchronous display signal for each frame of image, lighting the light sources row by row, wherein each row of light sources is successively lit at least twice.
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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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