Patents by Inventor Xiaohuan Chang

Xiaohuan Chang 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: 11763739
    Abstract: Provided by the present disclosure are a method and device for adjusting brightness and an OLED display. The method includes: receiving an instruction for adjusting the brightness of the OLED display; and adjusting the light emitting control signal according to the brightness value of the OLED display which is needed to be adjusted in the instruction. The duty ratio of one pulse period in the light emitting control signal is correspondingly adjusted by one unit each time the brightness of the OLED display needs to be adjusted by one unit.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: September 19, 2023
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xiaohuan Chang, Lei Feng, Shuiming Lv, Guoqiang Wu
  • Patent number: 11640790
    Abstract: The present disclosure provides a pixel rendering method, a pixel rendering device, a computer readable storage medium, and a display panel. The method includes: receiving an initial data signal for driving a target sub-pixel to display; determining a data range where the initial data signal is located, where different data ranges correspond to different display modes; determining a weight of color, shared by the target sub-pixel, of a sub-pixel around the target sub-pixel and having the same color as the target sub-pixel according to the data range, where the weight of color is varied in the different display modes; calculating a target data signal of the target sub-pixel according to the weight of color; and outputting the target data signal to the target sub-pixel.
    Type: Grant
    Filed: December 20, 2021
    Date of Patent: May 2, 2023
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yuanzhou Hu, Xiaohuan Chang, Guoqiang Wu, Chenghao Liao
  • Patent number: 11580891
    Abstract: A color shift compensation method, a color shift compensation system and a display panel are provided. The color shift compensation method includes: accumulating actual display time of a display panel; determining whether or not the actual display time reaches a preset cumulative display time threshold; and in a case where the actual display time reaches the preset cumulative display time threshold, driving the display panel to display according to compensated adjustment voltages that are pre-stored, and in a case where the actual display time does not reach the preset cumulative display time threshold, driving the display panel to display according to current adjustment voltages that are pre-stored.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: February 14, 2023
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xiaohuan Chang, Chuanyan Lan, Yong Yu
  • Publication number: 20220406249
    Abstract: Provided by the present disclosure are a method and device for adjusting brightness and an OLED display. The method includes: receiving an instruction for adjusting the brightness of the OLED display; and adjusting the light emitting control signal according to the brightness value of the OLED display which is needed to be adjusted in the instruction. The duty ratio of one pulse period in the light emitting control signal is correspondingly adjusted by one unit each time the brightness of the OLED display needs to be adjusted by one unit.
    Type: Application
    Filed: December 28, 2020
    Publication date: December 22, 2022
    Inventors: Xiaohuan CHANG, Lei FENG, Shuiming LV, Guoqiang WU
  • Publication number: 20220293053
    Abstract: The present disclosure provides a pixel rendering method, a pixel rendering device, a computer readable storage medium, and a display panel. The method includes: receiving an initial data signal for driving a target sub-pixel to display; determining a data range where the initial data signal is located, where different data ranges correspond to different display modes; determining a weight of color, shared by the target sub-pixel, of a sub-pixel around the target sub-pixel and having the same color as the target sub-pixel according to the data range, where the weight of color is varied in the different display modes; calculating a target data signal of the target sub-pixel according to the weight of color; and outputting the target data signal to the target sub-pixel.
    Type: Application
    Filed: December 20, 2021
    Publication date: September 15, 2022
    Inventors: Yuanzhou HU, Xiaohuan CHANG, Guoqiang WU, Chenghao LIAO
  • Patent number: 11417271
    Abstract: A brightness adjustment method of a display panel, a display panel and a driving method thereof are disclosed. The display panel includes a display region. The brightness adjustment method includes: determining a target pulse width for a gate signal inputted into the display region according to data write time determined for the display region; and adjusting a pulse width of the gate signal to the target pulse width, to make the display region display target brightness corresponding to the display region.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: August 16, 2022
    Assignees: CHENGU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yong Yu, Chuanyan Lan, Lixia Shen, Xiaohuan Chang
  • Publication number: 20210366384
    Abstract: A brightness adjustment method of a display panel, a display panel and a driving method thereof are disclosed. The display panel includes a display region. The brightness adjustment method includes: determining a target pulse width for a gate signal inputted into the display region according to data write time determined for the display region; and adjusting a pulse width of the gate signal to the target pulse width, to make the display region display target brightness corresponding to the display region.
    Type: Application
    Filed: October 15, 2018
    Publication date: November 25, 2021
    Inventors: Yong YU, Chuanyan LAN, Lixia SHEN, Xiaohuan CHANG
  • Publication number: 20210193011
    Abstract: A color shift compensation method, a color shift compensation system and a display panel are provided. The color shift compensation method includes: accumulating actual display time of a display panel; determining whether or not the actual display time reaches a preset cumulative display time threshold; and in a case where the actual display time reaches the preset cumulative display time threshold, driving the display panel to display according to compensated adjustment voltages that are pre-stored, and in a case where the actual display time does not reach the preset cumulative display time threshold, driving the display panel to display according to current adjustment voltages that are pre-stored.
    Type: Application
    Filed: February 9, 2018
    Publication date: June 24, 2021
    Inventors: Xiaohuan CHANG, Chuanyan LAN, Yong YU
  • Publication number: 20200192554
    Abstract: Embodiments of the present disclosure provide a terminal device, a display control method implemented by the terminal device, a computer readable storage medium, and a computer program product. The display control method includes: displaying, during a first time period of a display period, a first display sub-interface in a first display area of a display unit of the terminal device using a first color combination scheme; and displaying, during a second time period of the display period, the first display sub-interface in the first display area using a second color combination scheme different from the first color combination scheme.
    Type: Application
    Filed: February 6, 2018
    Publication date: June 18, 2020
    Inventors: Shuai Ye, Yong Yu, Xiaohuan Chang, Chuanyan Lan, Lianbin Liu