Patents Examined by Roland Bowler
  • Patent number: 4769638
    Abstract: Large scale information display panels made up of basic picture elements running to hundreds, even up several thousand color elements, are useful for being viewed for advertising, transportation information, traffic control, news, weather, finanical data and other information normally generated by computers. The system has capability in alphanumeric and also for color graphics designs in four colors with use of a basic display element with two intersecting planes rotational about an axis at the intersection of the two planes. A three plane element provides for designs in six colors. The basic two plane display has each face of each of the two plane surfaces coated or impregnated with a different color and a single permanent bar magnet is enclosed in one of the plane forms perpendicular to the axis of rotation.
    Type: Grant
    Filed: October 30, 1986
    Date of Patent: September 6, 1988
    Inventor: Robert L. Woolfolk