Patents by Inventor Xiaomang Zhang

Xiaomang Zhang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11308896
    Abstract: The embodiments of this disclosure disclose a liquid crystal display device and a control method thereof, a head-mounted display device and a computer-readable storage medium. The control method of the liquid crystal display device comprises: obtaining a state of each pixel in the display panel based on inputted image data; obtaining a display zone comprising both pixels in a bright state and pixels in a dark state based on the state of each pixel in the display panel, and using the obtained display zone as a destination zone; obtaining a halo region based on the state of the pixels in the destination zone, wherein the halo region comprises pixels in the dark state in the destination zone; generating a first control signal based on the halo region; and controlling based on the first control signal a backlight zone to be adjusted.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: April 19, 2022
    Assignees: BOE MLED TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD
    Inventors: Tiankuo Shi, Zhihua Ji, Xiaomang Zhang, Lingyun Shi, Xiurong Wang, Hao Zhang, Lili Chen, Yilang Sun, Yifang Chu, Yanhui Xi, Wenyu Li, Ming Chen
  • Patent number: 11308897
    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.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: April 19, 2022
    Assignees: BOE MLED Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: 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
  • Patent number: 11308844
    Abstract: A multi-primary color conversion method is provided to include: establishing a spatial gamut model of a display panel; determining a target peripheral surface corresponding to the target color according to the color coordinates of the target color and color coordinates of a color corresponding to each vertex of each peripheral surface; obtaining reference gray scales of a part of primary colors of the target color according to gray scales of the primary colors of a color corresponding to each vertex of the target peripheral surface; obtaining reference gray scales of the rest primary colors of the target color and a reference luminance of the target color; and respectively converting the reference gray scales of the plurality of primary colors of the target color into target gray scales according to a proportional relationship between the reference luminance and the target luminance of the target color.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: April 19, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yanhui Xi, Bin Dai, Xiaomang Zhang, Haijun Niu, Kuanjun Peng, Xiaolong Li, Donghui Wang, Yan Sun
  • Patent number: 11289035
    Abstract: A method for obtaining a backlight intensity may improving data processing speed of a display device. The method includes: dividing image data into N sets of data; calculating a backlight intensity of each backlight block according to a corresponding set of data; for each group of pixels, calculating a backlight intensity corresponding to a first pixel according to a backlight intensity of each effective backlight block corresponding to the first pixel and a backlight diffusion weight of the effective backlight block corresponding to the first pixel; calculating backlight intensities corresponding to second to Mth pixels in the Tth group of pixels according to the backlight intensities corresponding to first pixels in the Tth group of pixels and a (T+1)th group of pixels; and for a Nth group of pixels, setting the backlight intensity corresponding to the first pixel as backlight intensities corresponding to second to Mth pixels.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: March 29, 2022
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhihua Ji, Tiankuo Shi, Zhenkun Song, Xiaomang Zhang, Hsinchung Lo, Chingwen Kung, Lingyun Shi, Xin Duan, Yue Li, Yifan Hou
  • Publication number: 20220095070
    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.
    Type: Application
    Filed: September 24, 2021
    Publication date: March 24, 2022
    Inventors: Yanhui XI, Xiaomang ZHANG, Zhihua JI, Tiankuo SHI, Yan SUN, Shuo ZHANG, Xiangjun PENG, Yifan HOU, Chenxi ZHAO, Minglei CHU
  • Patent number: 11232767
    Abstract: An image display method, a display system, and a computer-readable storage medium are disclosed. The image display method includes: acquiring a first image; determining a first region and a second region in the first image; performing a first rendering algorithm on the first region in the first image and performing a second rendering algorithm on the second region in the first image, so as to obtain a second image, where a rendering resolution of the first rendering algorithm is greater than a rendering resolution of the second rendering algorithm; and displaying the second image.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: January 25, 2022
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Tiankuo Shi, Xiaomang Zhang, Bin Dai, Lingyun Shi, Wei Sun, Bo Gao, Yue Li
  • Patent number: 11217186
    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.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: January 4, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yanhui Xi, Yuxin Bi, Bin Dai, Xiaomang Zhang, Lingyun Shi
  • Publication number: 20210390916
    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.
    Type: Application
    Filed: May 22, 2020
    Publication date: December 16, 2021
    Inventors: 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
  • Patent number: 11200830
    Abstract: The present disclosure provides a method and apparatus for driving a display panel, and a display device. The method includes: upon driving an ith row of sub-pixels, scanning a gate line connected to a jth row of sub-pixels, and determining a reference grayscale of each of the jth row of sub-pixels in each candidate connection mode, wherein a plurality of data lines have a plurality of candidate connection modes; determining a target connection mode that minimizes a grayscale variation degree of the jth row of sub-pixels from the plurality of candidate connection modes; connecting the plurality of data lines according to the target connection mode; and disconnecting the plurality of data lines before driving the jth row of sub-pixels through the plurality of data lines.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: December 14, 2021
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Gaoming Sun, Hsinchung Lo, Xiaomang Zhang, Ching wen Kong, Yuxin Bi, Yang Gao, Zhenkun Song, Fuyin Wang
  • Patent number: 11195479
    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.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: December 7, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yanhui Xi, Xiaomang Zhang, Yan Sun, Zhihua Ji, Yuxin Bi, Tiankuo Shi
  • Patent number: 11189208
    Abstract: A driving method for a pixel array is provided. The driving method includes: amplifying an input image to obtain an intermediate image; calculating display parameters of each actual pixel unit based on display parameters of the intermediate theoretical pixel units of the intermediate image; and generating actual image signals based on the calculated display parameters of each actual pixel unit and inputting the actual image signals to the actual pixel units of the pixel array, respectively.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: November 30, 2021
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Tiankuo Shi, Xiaomang Zhang, Bin Dai, Lingyun Shi, Wei Sun, Bo Gao, Yue Li
  • Publication number: 20210335184
    Abstract: A multi-primary color conversion method is provided to include: establishing a spatial gamut model of a display panel; determining a target peripheral surface corresponding to the target color according to the color coordinates of the target color and color coordinates of a color corresponding to each vertex of each peripheral surface; obtaining reference gray scales of a part of primary colors of the target color according to gray scales of the primary colors of a color corresponding to each vertex of the target peripheral surface; obtaining reference gray scales of the rest primary colors of the target color and a reference luminance of the target color; and respectively converting the reference gray scales of the plurality of primary colors of the target color into target gray scales according to a proportional relationship between the reference luminance and the target luminance of the target color.
    Type: Application
    Filed: November 13, 2018
    Publication date: October 28, 2021
    Inventors: Yanhui XI, Bin DAI, Xiaomang ZHANG, Haijun NIU, Kuanjun PENG, Xiaolong LI, Donghui WANG, Yan SUN
  • Publication number: 20210335183
    Abstract: The display control method according to some embodiments of the present disclosure includes: acquiring an M-primary-color input signal from each pixel in an original image, the original image including a plurality of pixels corresponding to the plurality of pixel units respectively, each pixel being configured to display a colored image in M primary colors, M being an integer greater than 1 and smaller than N; and calculating an N-primary-color input signal for a corresponding pixel unit of the N-primary-color display panel in accordance with color coordinates of each primary color for the N-primary-color display panel and the M-primary-color input signal.
    Type: Application
    Filed: May 31, 2018
    Publication date: October 28, 2021
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Bin DAI, Xue DONG, Xiaomang ZHANG, Jing LV, Dong CHEN, Yuxin BI, Yanhui XI, Xiaolong LI, Haijun NIU
  • Publication number: 20210335290
    Abstract: The embodiments of this disclosure disclose a liquid crystal display device and a control method thereof, a head-mounted display device and a computer-readable storage medium. The control method of the liquid crystal display device comprises: obtaining a state of each pixel in the display panel based on inputted image data; obtaining a display zone comprising both pixels in a bright state and pixels in a dark state based on the state of each pixel in the display panel, and using the obtained display zone as a destination zone; obtaining a halo region based on the state of the pixels in the destination zone, wherein the halo region comprises pixels in the dark state in the destination zone; generating a first control signal based on the halo region; and controlling based on the first control signal a backlight zone to be adjusted.
    Type: Application
    Filed: February 22, 2019
    Publication date: October 28, 2021
    Inventors: Tiankuo SHI, Zhihua JI, Xiaomang ZHANG, Lingyun SHI, Xiurong WANG, Hao ZHANG, Lili CHEN, Yilang SUN, Yifang CHU, Yanhui XI, Wenyu LI, Ming CHEN
  • Patent number: 11114046
    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 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.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: September 7, 2021
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yilang Sun, Yifang Chu, Zhihua Ji, Tiankuo Shi, Lingyun Shi, Xiaomang Zhang
  • Patent number: 11081081
    Abstract: 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.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: August 3, 2021
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yue Li, Tiankuo Shi, Zhihua Ji, Chuan Shuai, Lingyun Shi, Xiaomang Zhang, Yifang Chu, Chengqi Zhou, Chuanjun Liu, Zhou Sun, Yilang Sun
  • Patent number: 11074888
    Abstract: An image data processing method and apparatus, an image display method and apparatus, and a computer-readable storage medium and a display device. The image data processing method includes: obtaining initial image data of a to-be-displayed image, wherein each pixel in the to-be-displayed image comprises a white sub-pixel and a plurality of color sub-pixels; determining a target stimulus value corresponding to each pixel based on the initial image data, wherein the target stimulus value corresponding to each pixel is negatively correlated with color saturation of each pixel; and updating the initial image data to obtain target image data, wherein a stimulus value of the white sub-pixel of each pixel in the target image data is the target stimulus value corresponding to each pixel.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: July 27, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Bin Dai, Yanhui Xi, Xiaomang Zhang, Yue Li, Zhihua Ji, Tiankuo Shi, Yuxin Bi, Lingyun Shi
  • Publication number: 20210225303
    Abstract: 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.
    Type: Application
    Filed: December 12, 2019
    Publication date: July 22, 2021
    Applicants: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Tiankuo Shi, Lingyun Shi, Xiaomang Zhang, Zhihua Ji, Yafei Li, Xin Duan, Xiurong Wang, Wei Sun, Hao Zhang, Ming Chen, Yuxin Bi
  • Publication number: 20210225329
    Abstract: An image display method, a display system, and a computer-readable storage medium are disclosed. The image display method includes: acquiring a first image; determining a first region and a second region in the first image; performing a first rendering algorithm on the first region in the first image and performing a second rendering algorithm on the second region in the first image, so as to obtain a second image, where a rendering resolution of the first rendering algorithm is greater than a rendering resolution of the second rendering algorithm; and displaying the second image.
    Type: Application
    Filed: April 9, 2018
    Publication date: July 22, 2021
    Applicants: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Tiankuo SHI, Xiaomang ZHANG, Bin DAI, Lingyun SHI, Wei SUN, Bo GAO, Yue LI
  • Publication number: 20210225299
    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.
    Type: Application
    Filed: November 5, 2019
    Publication date: July 22, 2021
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yanhui Xi, Xiaomang Zhang, Yan Sun, Zhihua Ji, Yuxin Bi, Tiankuo Shi