Patents Assigned to DRD Ltd.
  • Patent number: 4747648
    Abstract: A modularized optical fiber display system is disclosed wherein each module has an optical train including a plurality of optical fibers or cables organized at one end into a bundle which is illuminated by a lamp, with each of the optical fibers of the bundle having an individual, independently controlled shuttering mechanism associated with it for controlling light flow from each optical fiber to respective lenses forming pixels in a signboard display. Each of the pixels is individually controlled to enable production of any desired alpha-numeric character or other graphic on the signboard. Each of the display modules can be separately used, or integrated into a single large display.
    Type: Grant
    Filed: January 24, 1985
    Date of Patent: May 31, 1988
    Assignee: DRD Ltd.
    Inventor: B. David Gilliland, III