Patents by Inventor David Morrison Martindale

David Morrison Martindale 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).

  • Wide color gamut LED pixel with screen-door reduction and high LED selection yield
    Patent number: 11195446
    Abstract: An active display can have an increased color gamut and include a group of LED packets that each form a sub-pixel and that together form a pixel for the display. Each LED packet includes at least a red primary color LED, a greed primary color LED, and a blue primary color LED. Each LED can be associated with an intensity value to control the intensity of primary light outputted by the LED. The group of LED packets can output light in a color gamut of a color space for the active display. Each LED packet of the group of LED packets, individually, is configured to output light in the color gamut of a subset of the color space. The active display can display a visual media presentation to an audience. An increased fraction of LEDs from a production batch can be used in the active display.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: December 7, 2021
    Assignee: IMAX Theatres International Limited
    Inventors: Steen Svendstorp Iversen, David Morrison Martindale
  • WIDE COLOR GAMUT LED PIXEL WITH SCREEN-DOOR REDUCTION AND HIGH LED SELECTION YIELD
    Publication number: 20200349878
    Abstract: An active display can have an increased color gamut and include a group of LED packets that each form a sub-pixel and that together form a pixel for the display. Each LED packet includes at least a red primary color LED, a greed primary color LED, and a blue primary color LED. Each LED can be associated with an intensity value to control the intensity of primary light outputted by the LED. The group of LED packets can output light in a color gamut of a color space for the active display. Each LED packet of the group of LED packets, individually, is configured to output light in the color gamut of a subset of the color space. The active display can display a visual media presentation to an audience. An increased fraction of LEDs from a production batch can be used in the active display.
    Type: Application
    Filed: November 6, 2018
    Publication date: November 5, 2020
    Inventors: Steen Svendstorp Iversen, David Morrison Martindale