Patents by Inventor Christopher Morgan Walker

Christopher Morgan Walker 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).

  • System and method for protecting a liquid crystal display by controlling ion migration
    Patent number: 10481439
    Abstract: A liquid crystal display includes a display area and a border area at least partially surrounding the display area, where the display area displays images for viewing and the border area displays display-protection images, which are used to control ion migration in the liquid crystal layer. In a more particular embodiment, the border area displays a series of checkerboard pattern(s), where the checkerboard patterns can alternate between initial and inverted values. The display-protection images protect the liquid crystal display from migrating ions accumulating in particular regions of the pixel array and causing permanent defects in the display area. A liquid crystal display that includes a liquid crystal alignment layer having a plurality of liquid crystal alignment directions is also disclosed. The customized liquid crystal alignment director(s) over the border area promote ion migration away from the display area.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: November 19, 2019
    Assignee: OmniVision Technologies, Inc.
    Inventors: Christopher Morgan Walker, Libo Weng, Oray Orkun Cellek, Ming Zhang, Yin Qian, Dyson Hsin-Chih Tai, Regis Fan
  • System and method for protecting a liquid crystal display by controlling ion migration
    Patent number: 10429699
    Abstract: A liquid crystal display includes a display area and a border area at least partially surrounding the display area, where the display area displays images for viewing and the border area displays display-protection images, which are used to control ion migration in the liquid crystal layer. In a more particular embodiment, the border area displays a series of checkerboard pattern(s), where the checkerboard patterns can alternate between initial and inverted values. The display-protection images protect the liquid crystal display from migrating ions accumulating in particular regions of the pixel array and causing permanent defects in the display area. A liquid crystal display that includes a liquid crystal alignment layer having a plurality of liquid crystal alignment directions is also disclosed. The customized liquid crystal alignment director(s) over the border area promote ion migration away from the display area.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: October 1, 2019
    Assignee: OmniVision Technologies, Inc.
    Inventors: Christopher Morgan Walker, Libo Weng, Oray Orkun Cellek, Ming Zhang, Yin Qian, Dyson Hsin-Chih Tai, Regis Fan
  • System and Method for Protecting a Liquid Crystal Display by Controlling Ion Migration
    Publication number: 20180144710
    Abstract: A liquid crystal display includes a display area and a border area at least partially surrounding the display area, where the display area displays images for viewing and the border area displays display-protection images, which are used to control ion migration in the liquid crystal layer. In a more particular embodiment, the border area displays a series of checkerboard pattern(s), where the checkerboard patterns can alternate between initial and inverted values. The display-protection images protect the liquid crystal display from migrating ions accumulating in particular regions of the pixel array and causing permanent defects in the display area. A liquid crystal display that includes a liquid crystal alignment layer having a plurality of liquid crystal alignment directions is also disclosed. The customized liquid crystal alignment director(s) over the border area promote ion migration away from the display area.
    Type: Application
    Filed: November 21, 2016
    Publication date: May 24, 2018
    Applicant: OmniVision Technologies, Inc.
    Inventors: Christopher Morgan Walker, Libo Weng, Oray Orkun Cellek, Ming Zhang, Yin Qian, Dyson Hsin-Chih Tai, Regis Fan
  • System and Method for Protecting a Liquid Crystal Display by Controlling Ion Migration
    Publication number: 20180143498
    Abstract: A liquid crystal display includes a display area and a border area at least partially surrounding the display area, where the display area displays images for viewing and the border area displays display-protection images, which are used to control ion migration in the liquid crystal layer. In a more particular embodiment, the border area displays a series of checkerboard pattern(s), where the checkerboard patterns can alternate between initial and inverted values. The display-protection images protect the liquid crystal display from migrating ions accumulating in particular regions of the pixel array and causing permanent defects in the display area. A liquid crystal display that includes a liquid crystal alignment layer having a plurality of liquid crystal alignment directions is also disclosed. The customized liquid crystal alignment director(s) over the border area promote ion migration away from the display area.
    Type: Application
    Filed: February 9, 2017
    Publication date: May 24, 2018
    Applicant: OmniVision Technologies, Inc.
    Inventors: Christopher Morgan Walker, Libo Weng, Oray Orkun Cellek, Ming Zhang, Yin Qian, Dyson Hsin-Chih Tai, Regis Fan