Patents by Inventor Ziwang LIU

Ziwang LIU 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).

  • Method and device for detecting defects in a pressing test of a touch screen
    Patent number: 10222884
    Abstract: The present invention provides a method and a device for detecting defects in a pressing test of a touch screen. The method for detecting defects in a pressing test of a touch screen includes: Step S1: acquiring, after each test point of the touch screen is tested, an image of a test region in which the test point is located, when performing the pressing test; Step S2: identifying a quantity of abnormal points in the acquired image; and Step S3: comparing the identified quantity of abnormal points with a quantity of abnormal points allowed in the pressing test, and determining that the touch screen has defects if the identified quantity of abnormal points exceeds the quantity of abnormal points allowed in the pressing test. The above method for detecting defects can check instantly and accurately whether defects arise on the touch screen during the pressing test.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: March 5, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Gang Yang, Yong Song, Jun Long, Xijun An, Hongkun Zhang, Ziwang Liu
  • METHOD AND DEVICE FOR DETECTING DEFECTS IN A PRESSING TEST OF A TOUCH SCREEN
    Publication number: 20170011504
    Abstract: The present invention provides a method and a device for detecting defects in a pressing test of a touch screen. The method for detecting defects in a pressing test of a touch screen includes: Step S1: acquiring, after each test point of the touch screen is tested, an image of a test region in which the test point is located, when performing the pressing test; Step S2: identifying a quantity of abnormal points in the acquired image; and Step S3: comparing the identified quantity of abnormal points with a quantity of abnormal points allowed in the pressing test, and determining that the touch screen has defects if the identified quantity of abnormal points exceeds the quantity of abnormal points allowed in the pressing test. The above method for detecting defects can check instantly and accurately whether defects arise on the touch screen during the pressing test.
    Type: Application
    Filed: May 19, 2016
    Publication date: January 12, 2017
    Inventors: Gang YANG, Yong SONG, Jun LONG, Xijun AN, Hongkun ZHANG, Ziwang LIU