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21.发明授权公开(公告)号：US11217186B2
公开(公告)日：2022-01-04
申请号：US16611444
申请日：2019-04-04
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yanhui Xi , Yuxin Bi , Bin Dai , Xiaomang Zhang , Lingyun Shi
IPC: G09G3/34
Abstract: The present disclosure provides a dimming method for an LCD device. The LCD device includes a dimming screen and a display screen. The dimming screen is divided into N×M dimming areas, and the display screen is also divided into N×M display areas. N and M are respectively positive integers greater than or equal to 1. The dimming areas correspond to the display areas in a one-to-one relationship. The dimming method includes determining a regional eigenvalue of each of the dimming areas according to image data, determining a dimming brightness of each of the dimming areas according to each regional eigenvalue, and dimming each of the dimming areas according to each dimming brightness. The present disclosure also provides a dimming screen for use in the dimming method and an LCD device using the dimming method.
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公开(公告)号：US20210390916A1
公开(公告)日：2021-12-16
申请号：US17255989
申请日：2020-05-22
Inventor： Tiankuo Shi , Lingyun Shi , Xiaomang Zhang , Xin Duan , Wei Sun , Guofeng Hu , Zhihua Ji , Yanhui Xi , Yan Sun , Bin Dai , Yue Li , Yifan Hou , Yilang Sun , Chuanjun Liu , Xue Dong
IPC: G09G3/34
Abstract: A display device and a display control method, and the display device includes: a backlight module, a first display panel, and a second display panel, and a processor. The processor is configured to: acquire a pixel grayscale matrix of an image to be displayed; determine desired brightness of each pixel by using a grayscale-brightness curve of the second display panel based on the pixel grayscale matrix; determine set light-emitting brightness of backlight partition according to grayscale information in the pixel grayscale matrix corresponding to the backlight partition; obtain a first corrected brightness of each backlight partition based on light diffusion coefficients of the plurality of backlight partitions; determine a grayscale of pixel unit according to a brightness difference between the first corrected brightness and the desired brightness; obtain a second corrected brightness of the backlight partition.
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23.发明授权公开(公告)号：US11195479B2
公开(公告)日：2021-12-07
申请号：US16763762
申请日：2019-11-05
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yanhui Xi , Xiaomang Zhang , Yan Sun , Zhihua Ji , Yuxin Bi , Tiankuo Shi
Abstract: The present disclosure relates to a method for driving a display device, a driving apparatus, a display device, and a computer-readable medium. The display device includes a backlight module, which includes a plurality of backlight regions. The method includes: determining a first backlight signal value of each of the plurality of backlight regions according to input grayscale values of pixels in an image to be displayed; determining a second backlight signal value of each of the plurality of backlight regions according to the first backlight signal values of the plurality of backlight regions and a preset backlight diffusion function; and driving each of the plurality of backlight regions to emit light using the second backlight signal value of the backlight region.
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公开(公告)号：US10930225B2
公开(公告)日：2021-02-23
申请号：US16291707
申请日：2019-03-04
Inventor： Zhihua Ji , Tiankuo Shi , Xiaomang Zhang , Yilang Sun , Lingyun Shi , Wenyu Li , Yanhui Xi , Chuanjun Liu
Abstract: A display control method and apparatus of backlight sources, and a display device are provided. The method includes: determining a set backlight value of each backlight area according to a grayscale of an image to be displayed; determining an equivalent backlight luminance of each pixel point according to backlight source diffusion transmission parameter of the backlight module of the display device and the set backlight value of each backlight area; determining a compensation image according to the equivalent backlight luminance of each pixel point; and controlling the backlight module to turn on the backlight sources according to the set backlight value of each backlight area, and controlling the display panel to display the image according to the compensation image.
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25.发明授权公开(公告)号：US10896635B2
公开(公告)日：2021-01-19
申请号：US16482107
申请日：2018-09-27
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yanhui Xi , Bin Dai , Xiaomang Zhang , Yan Sun , Kuanjun Peng , Haijun Niu , Xiaolong Li , Donghui Wang
IPC: G09G3/20
Abstract: Disclosed is a primary color conversion method, which may expand primary color signals that are applicable to a display device. The primary color conversion method includes: acquiring color coordinates and a brightness value of a first color in a first color gamut having M primary colors according to gray-scale values of the M primary colors corresponding to the first color; and mapping the color coordinates and the luminance value of the first color in the first color gamut to color coordinates and a brightness value of a second color corresponding to the first color in a second color gamut having N primary colors. 3≤M, 3≤N, M is different from N, and M and N are positive integers.
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Patent Agency Ranking
公开(公告)号：US20190355316A1
公开(公告)日：2019-11-21
申请号：US16291707
申请日：2019-03-04
Inventor： Zhihua Ji , Tiankuo Shi , Xiaomang Zhang , Yilang Sun , Lingyun Shi , Wenyu Li , Yanhui Xi , Chuanjun Liu
Abstract: A display control method and apparatus of backlight sources, and a display device are provided. The method includes: determining a set backlight value of each backlight area according to a grayscale of an image to be displayed; determining an equivalent backlight luminance of each pixel point according to backlight source diffusion transmission parameter of the backlight module of the display device and the set backlight value of each backlight area; determining a compensation image according to the equivalent backlight luminance of each pixel point; and controlling the backlight module to turn on the backlight sources according to the set backlight value of each backlight area, and controlling the display panel to display the image according to the compensation image.
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公开(公告)号：US12223621B2
公开(公告)日：2025-02-11
申请号：US17614120
申请日：2021-01-25
Inventor： Yan Sun , Minglei Chu , Tiankuo Shi , Yanhui Xi , Zhihua Ji , Yifan Hou , Chenxi Zhao , Shuo Zhang , Xiangjun Peng , Xiaomang Zhang , Wei Sun
Abstract: The present disclosure provides a virtual viewpoint synthesis method, including: pre-processing a depth image with zero parallax corresponding to an original image to obtain a processed depth image; generating virtual viewpoint images corresponding to a plurality of virtual viewpoints respectively according to the processed depth image and the original image; and filling holes in the virtual viewpoint image to generate a plurality of filled virtual viewpoint images. The present disclosure further provides an electronic apparatus and a computer-readable medium.
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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
Inventor： 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: H04N11/02 , H04N19/172 , H04N19/176
CPC classification number: H04N19/172 , H04N19/176
Abstract: 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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公开(公告)号：US11710438B2
公开(公告)日：2023-07-25
申请号：US17428846
申请日：2020-03-27
Inventor： Yanhui Xi , Tiankuo Shi , Yan Sun , Xiaomang Zhang , Yifan Hou , Xin Duan , Wei Sun , Ming Chen , Yifang Chu , Lingyun Shi
CPC classification number: G09G3/2007 , G09G3/3611 , G09G2320/0626
Abstract: 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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30.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
Inventor： Yanhui Xi , Xiaomang Zhang , Zhihua Ji , Tiankuo Shi , Yan Sun , Shuo Zhang , Xiangjun Peng , Yifan Hou , Chenxi Zhao , Minglei Chu
CPC classification number: H04S7/301 , H04R5/02 , H04R5/04 , H04R2205/022 , H04R2499/15
Abstract: 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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