Patents by Inventor Lixia SHEN

Lixia SHEN 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: 10755633
    Abstract: A compensation method of a display panel, a compensation device, a display method, a display apparatus and a storage medium. The compensation method of a display panel includes: obtaining an initial compensation parameter of each pixel of the display panel and an initial conversion range for performing a data conversion on the initial compensation parameter; optimizing the initial conversion range based on a compensation effect of a compensation parameter to obtain an optimized conversion range, where the compensation effect of the compensation parameter is obtained based on the initial conversion range; and obtaining an optimized compensation parameter of each pixel of the display panel based on the optimized conversion range.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: August 25, 2020
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wei Tang, Lixia Shen, Haoqing Guo
  • Patent number: 10665171
    Abstract: A method and a device for compensating for image crosstalk and a display apparatus are provided. The method includes: obtaining (S101) a data-voltage variation value between a data voltage applied to a pixel unit at a current scanning time instant and a data voltage applied to the pixel unit at a previous scanning time instant; determining a power-voltage variation value based on the data-voltage variation value (S102); setting a sum of the power-voltage variation value and an original data voltage to be applied to the pixel unit at a next time instant as a compensated data voltage of the pixel unit (S103); and setting the compensated data voltage of the pixel unit as an actual data voltage to be applied to the pixel unit at the next time instant (S104).
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: May 26, 2020
    Assignees: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhiguang Zhang, Chang Zhang, Kwanggyun Jang, Lixia Shen
  • Publication number: 20200105190
    Abstract: A compensation method of a display panel, a compensation device, a display method, a display apparatus and a storage medium. The compensation method of a display panel includes: obtaining an initial compensation parameter of each pixel of the display panel and an initial conversion range for performing a data conversion on the initial compensation parameter; optimizing the initial conversion range based on a compensation effect of a compensation parameter to obtain an optimized conversion range, where the compensation effect of the compensation parameter is obtained based on the initial conversion range; and obtaining an optimized compensation parameter of each pixel of the display panel based on the optimized conversion range.
    Type: Application
    Filed: April 29, 2019
    Publication date: April 2, 2020
    Inventors: Wei TANG, Lixia SHEN, Haoqing GUO
  • Patent number: 10553160
    Abstract: Embodiments of the present disclosure provide an OLED display panel and a driving method thereof. The OLED display panel includes a plurality of power lines, each power line connecting to a plurality of pixels, and one end of each power line connecting to a power source. The method includes acquiring a current value of the power line and comparing it to a preset threshold, when a current value of the power line is less than or equal to the threshold, providing an original data voltage to the pixels connected to the power line, when a current value of a power line is greater than the threshold, providing a compensating data voltage to the pixel connected to the power line. The compensating data voltage is equal to the difference between the original data voltage and the compensation voltage.
    Type: Grant
    Filed: November 23, 2017
    Date of Patent: February 4, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Lixia Shen, Zhiguang Zhang, Chang Zhang, Yong Yu, Tae Hyun Kim
  • Publication number: 20200035174
    Abstract: Embodiments of the present disclosure provide a display panel and a drive method thereof, and a display device. The display panel includes a plurality of sets of pixel columns and a plurality of drive circuits. Each of the sets of pixel columns includes a plurality of subpixel columns. The plurality of drive circuits correspond to the plurality of sets of pixel columns respectively. Each of the drive circuits is further configured to send, to an adjacent drive circuit, a source data signal for the subpixel column in the set of pixel columns of the drive circuit, and/or receive, from the adjacent drive circuit, a source data signal for the subpixel column in the set of pixel columns of the adjacent drive circuit and generate a data signal for driving the subpixel column in the set of pixel columns of the drive circuit, based on the received source data signal.
    Type: Application
    Filed: August 31, 2018
    Publication date: January 30, 2020
    Inventors: Lixia SHEN, Zhiguang ZHANG, Chang ZHANG, Yong YU, Tae Hyun KIM
  • Publication number: 20200027400
    Abstract: A method and a device for compensating for image crosstalk and a display apparatus are provided. The method includes: obtaining (S101) a data-voltage variation value between a data voltage applied to a pixel unit at a current scanning time instant and a data voltage applied to the pixel unit at a previous scanning time instant; determining a power-voltage variation value based on the data-voltage variation value (S102); setting a sum of the power-voltage variation value and an original data voltage to be applied to the pixel unit at a next time instant as a compensated data voltage of the pixel unit (S103); and setting the compensated data voltage of the pixel unit as an actual data voltage to be applied to the pixel unit at the next time instant (S104).
    Type: Application
    Filed: April 11, 2018
    Publication date: January 23, 2020
    Applicants: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhiguang ZHANG, Chang ZHANG, Kwanggyun JANG, Lixia SHEN
  • Publication number: 20190378457
    Abstract: Embodiments of the present disclosure provide an OLED display panel and a driving method thereof. The OLED display panel includes a plurality of power lines, each power line connecting to a plurality of pixels, and one end of each power line connecting to a power source. The method includes acquiring a current value of the power line and comparing it to a preset threshold, when a current value of the power line is less than or equal to the threshold, providing an original data voltage to the pixels connected to the power line, when a current value of a power line is greater than the threshold, providing a compensating data voltage to the pixel connected to the power line. The compensating data voltage is equal to the difference between the original data voltage and the compensation voltage.
    Type: Application
    Filed: November 23, 2017
    Publication date: December 12, 2019
    Inventors: Lixia SHEN, Zhiguang ZHANG, Chang ZHANG, Yong YU, Tae Hyun KIM
  • Publication number: 20190370565
    Abstract: According to exemplary embodiments of the present disclosure, a method and an apparatus for extracting a lane line, a device, a computer readable-storage medium and a collection entity are provided. The method includes: obtaining a first group of lane lines of a road based on a first image generated from a point cloud collected by a laser radar; obtaining a second group of lane lines of the road based on a second image collected by a camera; and determining a lane line set of the road based on the first group of lane lines and the second group of lane lines. With embodiments of the present disclosure, the lane line extracted from the point cloud collected by the laser radar and the lane line extracted from the camera image are merged, thereby determining a final lane line, such that the extracted lane line is more accurate and more comprehensive.
    Type: Application
    Filed: March 14, 2019
    Publication date: December 5, 2019
    Inventors: Lixia SHEN, Ruijie HOU, Shiyu SONG, Fangfang DONG
  • Patent number: 10429193
    Abstract: The present application discloses a method and an apparatus for generating a high precision map. According to an embodiment, the method comprises: acquiring three-dimensional (3D) laser point cloud data and information related to a grid map for generating the high precision map; determining position information of each piece of the 3D laser point data of the 3D laser point cloud data in the grid map; rendering each pixel point in the grid map, by using the reflection value of corresponding 3D laser point data of the 3D laser point cloud data, in order to generate each of grid images in the grid map; identifying, by using a machine learning algorithm, traffic information of each of the grid images in the grid map; clustering the traffic information of each of the grid images in the grid map to obtain the traffic information of the grid map; and loading the traffic information of the grid map into the grid map to generate the high precision map.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: October 1, 2019
    Assignee: BAIDU ONLINE NETWORK TECHNOLOGY (BEIJING) CO., LTD.
    Inventors: Lixia Shen, Tianlei Zhang
  • Publication number: 20170343362
    Abstract: The present application discloses a method and an apparatus for generating a high precision map. According to an embodiment, the method comprises: acquiring three-dimensional (3D) laser point cloud data and information related to a grid map for generating the high precision map; determining position information of each piece of the 3D laser point data of the 3D laser point cloud data in the grid map; rendering each pixel point in the grid map, by using the reflection value of corresponding 3D laser point data of the 3D laser point cloud data, in order to generate each of grid images in the grid map; identifying, by using a machine learning algorithm, traffic information of each of the grid images in the grid map; clustering the traffic information of each of the grid images in the grid map to obtain the traffic information of the grid map; and loading the traffic information of the grid map into the grid map to generate the high precision map.
    Type: Application
    Filed: September 30, 2016
    Publication date: November 30, 2017
    Inventors: Lixia SHEN, Tianlei ZHANG