Patents by Inventor Yizhan HAN

Yizhan HAN 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).

  • Publication number: 20210043154
    Abstract: A gray-scale drive table generating device is described that includes a sampling circuit configured to collect a first voltage between a drive electrode of a sub-pixel of a positive-frame and a common electrode and a second voltage between a drive electrode of a sub-pixel of a negative-frame and the common electrode in a display panel in each gray-scale; a processing circuit configured to generate a trigger signal when a voltage difference between the first voltage and the second voltage is greater than a voltage threshold; an adjustment circuit configured to adjust drive gray-scales of the sub-pixel of the positive-frame and/or the sub-pixel of the negative-frame in response to the trigger signal to make the voltage difference less than the voltage threshold; and a recording circuit configured to generate an adjusted gray-scale drive table according to the drive gray-scales of the sub-pixel of the positive-frame and the sub-pixel of the negative-frame in each gray-scale.
    Type: Application
    Filed: January 7, 2020
    Publication date: February 11, 2021
    Inventors: Tao LI, Liugang ZHOU, Ke DAI, Yizhan HAN, Jianwei SUN, Yulong XIONG, Zhenlin QU
  • Patent number: 10902803
    Abstract: The disclosure discloses a display panel, a voltage adjustment method thereof, and a display device, and the display panel includes: at least two reference sub-pixels; a voltage compensation element coupled respectively with respective reference sub-pixels; and a power management element coupled with the voltage compensation element, wherein the voltage compensation element is configured to acquire valid values of pixel voltage of the respective reference sub-pixels when the at least two reference sub-pixels receive the same data voltage, and to generate a compensation signal of gate off voltage for the purpose of making the acquired valid values of the pixel voltage of the respective reference sub-pixels uniform; and the power management element is configured to adjust a voltage value of the gate off voltage according to the compensation signal of the gate off voltage.
    Type: Grant
    Filed: November 23, 2018
    Date of Patent: January 26, 2021
    Assignees: HEFEI BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yizhan Han, Shou Li, Liugang Zhou, Tao Li, Yulong Xiong, Jianwei Sun
  • Publication number: 20210012699
    Abstract: The preset disclosure provides a display control method, a timing controller IC and a display device. The method includes: acquiring a preset grayscale voltage of a target pixel unit and a backlight brightness of a backlight region corresponding to the target pixel unit, in a current output display frame; outputting a first grayscale voltage to the target pixel unit if the backlight brightness of the corresponding backlight region is less than or equal to a first preset brightness value; outputting a second grayscale voltage to the target pixel unit if the backlight brightness of the corresponding backlight region is greater than the first preset brightness value; wherein the second grayscale voltage is greater than the first grayscale voltage, and both the second grayscale voltage and the first grayscale voltage are greater than the preset grayscale voltage.
    Type: Application
    Filed: June 22, 2020
    Publication date: January 14, 2021
    Inventors: Zhenlin QU, Liugang ZHOU, Ke DAI, Tao LI, Yulong XIONG, Yizhan HAN, Jianwei SUN, Liu HE, Yunyun LIANG, Jun WANG, Qing LI, Xutong CHEN, Liwei ZHOU, Xiaofeng YIN
  • Publication number: 20200243039
    Abstract: A chip-on-film and a display device. The chip-on-film includes a substrate, at least one chip on the substrate, input terminals on the substrate, and output terminals on the substrate. The input terminals are configured to receive printed-circuit-board signals. The output terminals include data signal output sub-terminals configured to output display panel data signals. The output terminals lack an output sub-terminal configured to output a display panel scanning signal.
    Type: Application
    Filed: October 30, 2019
    Publication date: July 30, 2020
    Inventors: Yizhan HAN, Ke DAI, Liugang ZHOU
  • Publication number: 20200242994
    Abstract: A display device comprising a plurality of pixels arranged in multiple rows and multiple columns. The multiple pixel columns are connected with a plurality of source signal lines respectively. The pixels of odd-numbered rows in the same pixel column are connected with the source signal lines on a first side of the pixel column. The pixels of even-numbered rows in the same pixel column are connected with the source signal lines on a second side of the pixel column opposite the first side. A display control method comprising the steps of determining and storing target pixel potential data which comprises a target pixel potential for each of the plurality of source signal lines; and setting a potential of each source signal line as the target pixel potential corresponding to the source signal line in an interval zone between two adjacent frames.
    Type: Application
    Filed: November 6, 2019
    Publication date: July 30, 2020
    Inventors: Chunheng ZHANG, Yizhan HAN, Jun WANG, Jianwei SUN, Liugang ZHOU
  • Publication number: 20200234622
    Abstract: A display driving device is disclosed. The display driving device includes: a data signal end for providing a data signal, a source line, and a switching circuit. The source line can transmit the data signal to a first pixel circuit and a second pixel circuit. Along a direction of the source line, a distance between the second pixel circuit and the data signal end is larger than a distance between the first pixel circuit and the data signal end. The switching circuit is between the data signal end and the source line, and can be turned on in response to a first control signal, and can be turned on in response to a second control signal. A turned-on time period of the switching circuit in response to the second control signal is longer than a turned-on time period of the switching circuit in response to the first control signal.
    Type: Application
    Filed: August 16, 2019
    Publication date: July 23, 2020
    Inventors: Yulong Xiong, Liugang Zhou, Tao Li, Yizhan Han, Jianwei Sun, Liu He
  • Publication number: 20200211669
    Abstract: Some embodiments of the present disclosure provide a shift register unit, a gate driver, a driving method thereof and a display device. The shift register unit includes: an output circuit, configured to receive a clock signal and output the clock signal to an output signal terminal under control of a voltage of a pull-up control node; a pull-down control circuit, configured to receive a control voltage signal and control the voltage of the pull-up control node and a voltage of the output signal terminal according to the control voltage signal; and an output control circuit, configured to receive a first voltage signal and the control voltage signal, and control the voltage of the output signal terminal in response to the first voltage signal and the control voltage signal.
    Type: Application
    Filed: September 12, 2019
    Publication date: July 2, 2020
    Applicants: HEFEI BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Tao LI, Liugang ZHOU, Ke DAI, Yizhan HAN, Jianwei SUN, Yulong XIONG
  • Publication number: 20200013354
    Abstract: The disclosure discloses a display panel, a voltage adjustment method thereof, and a display device, and the display panel includes: at least two reference sub-pixels; a voltage compensation element coupled respectively with respective reference sub-pixels; and a power management element coupled with the voltage compensation element, wherein the voltage compensation element is configured to acquire valid values of pixel voltage of the respective reference sub-pixels when the at least two reference sub-pixels receive the same data voltage, and to generate a compensation signal of gate off voltage for the purpose of making the acquired valid values of the pixel voltage of the respective reference sub-pixels uniform; and the power management element is configured to adjust a voltage value of the gate off voltage according to the compensation signal of the gate off voltage.
    Type: Application
    Filed: November 23, 2018
    Publication date: January 9, 2020
    Inventors: Yizhan HAN, Shou LI, Liugang ZHOU, Tao LI, Yulong XIONG, Jianwei SUN
  • Publication number: 20190094640
    Abstract: The disclosure provides an array substrate, a liquid crystal display panel, and a display device. The array substrate according to the disclosure includes: an underlying substrate, and a plurality of scan lines and a plurality of data lines, the scan lines and the data lines are arranged to intersect with each other on the underlying substrate, wherein at least one of the scan lines is connected with a capacitor for adjusting common electrode voltage, and the capacitor has one end connected with one of the scan lines, and the other end connected with the common electrode voltage.
    Type: Application
    Filed: June 27, 2018
    Publication date: March 28, 2019
    Inventors: Yizhan HAN, Zhonghou WU, Liugang ZHOU, Shou LI, Jianwei SUN, Yulong XIONG, Tao LI