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公开(公告)号：US11710438B2
公开(公告)日：2023-07-25
申请号：US17428846
申请日：2020-03-27
发明人： Yanhui Xi , Tiankuo Shi , Yan Sun , Xiaomang Zhang , Yifan Hou , Xin Duan , Wei Sun , Ming Chen , Yifang Chu , Lingyun Shi
CPC分类号： G09G3/2007 , G09G3/3611 , G09G2320/0626
摘要： A display data processing method of a display device, a display device, an electronic device, and a storage medium are disclosed. The display data processing method includes: in response to a frequency of the dimming screen being consistent with a frequency of the display screen: determining a first gray-scale value of the first dimming pixel according to a plurality of input gray-scale values in an input image; determining a second gray-scale value of the first dimming pixel according to the first gray-scale value and a noise reduction function, where the noise reduction function is a monotonically increasing function in an interval (0, 1); obtaining a dimming gray-scale value of the first dimming pixel based on the second gray-scale value; and determining a plurality of target gray-scale values corresponding to the plurality of first display pixels according to the plurality of input gray-scale values and the dimming gray-scale value.
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2.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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3.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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4.发明申请公开(公告)号：US20200225537A1
公开(公告)日：2020-07-16
申请号：US16655371
申请日：2019-10-17
发明人： Zhihua Ji , Tiankuo Shi , Xiaomang Zhang , Yifang Chu , Yilang Sun , Chuanjun Liu , Xin Duan , Lingyun Shi , Yue Li , Yifan Hou
IPC分类号： G02F1/1335 , H05B33/08
摘要： A picture compensation method and apparatus, a display device and a non-volatile computer-readable storage medium are disclosed. The method includes: partitioning light-emitting devices in a plurality of first partitions based on information of the plurality of first partitions of a backlight source to obtain a plurality of second partitions, wherein the first partition includes a plurality of synchronously controlled light-emitting devices, and the number of rows and the number of columns of light-emitting devices in each of the plurality of second partitions are equal; fitting a luminance diffusion curve of each of the plurality of second partitions based on a luminance diffusion curve of each light-emitting device in each of the plurality of second partitions; determining a backlight value of a pixel unit corresponding to each pixel on a display panel based on the luminance diffusion curve of each of the plurality of second partitions and a gray-scale value of each pixel of an input image; and compensating for a picture of the input image based on the backlight value of each pixel unit.
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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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7.发明授权公开(公告)号：US11114046B2
公开(公告)日：2021-09-07
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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公开(公告)号：US10976605B2
公开(公告)日：2021-04-13
申请号：US16655371
申请日：2019-10-17
发明人： Zhihua Ji , Tiankuo Shi , Xiaomang Zhang , Yifang Chu , Yilang Sun , Chuanjun Liu , Xin Duan , Lingyun Shi , Yue Li , Yifan Hou
IPC分类号： G02F1/1335 , H05B33/08 , G02F1/13357 , H05B45/10
摘要： A picture compensation method and apparatus, a display device and a non-volatile computer-readable storage medium are disclosed. The method includes: partitioning light-emitting devices in a plurality of first partitions based on information of the plurality of first partitions of a backlight source to obtain a plurality of second partitions, wherein the first partition includes a plurality of synchronously controlled light-emitting devices, and the number of rows and the number of columns of light-emitting devices in each of the plurality of second partitions are equal; fitting a luminance diffusion curve of each of the plurality of second partitions based on a luminance diffusion curve of each light-emitting device in each of the plurality of second partitions; determining a backlight value of a pixel unit corresponding to each pixel on a display panel based on the luminance diffusion curve of each of the plurality of second partitions and a gray-scale value of each pixel of an input image; and compensating for a picture of the input image based on the backlight value of each pixel unit.
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公开(公告)号：US10783837B2
公开(公告)日：2020-09-22
申请号：US16235201
申请日：2018-12-28
发明人： Yilang Sun , Yifang Chu , Tiankuo Shi , Zhihua Ji , Lingyun Shi
摘要： Disclosed are a driving method and driving device of a display device, and a related device. After the backlight signal value of the backlight area is subjected to peak driving, the backlight signal value of each backlight area subjected to peak driving is subjected to backlight diffusion to obtain the backlight signal value of each pixel, and then the output luminance value of each pixel is determined according to the backlight signal value of each pixel and the relationship between the corresponding grayscale value when the backlight module is always on and the peak driving threshold, so as to perform display control.
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公开(公告)号：US11250802B2
公开(公告)日：2022-02-15
申请号：US16328934
申请日：2018-07-27
发明人： Liugang Zhou , Yifang Chu , Shou Li
IPC分类号： G09G3/36
摘要： The disclosure discloses a method and apparatus for driving a display panel, and a display device. A method for driving a display panel according to an embodiment of this disclosure includes: determining a charging length of time of the current row of pixels; determining a common voltage value corresponding to the charging length of time; and driving the current row of pixels using the common voltage value.
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