×

Low power projection display devices

  • US 7,806,535 B2
  • Filed: 04/27/2007
  • Issued: 10/05/2010
  • Est. Priority Date: 07/16/2003
  • Status: Active Grant
First Claim
Patent Images

1. A projection-type display device, comprising:

  • a light source for generating light;

    an optical modulation device configured to selectively transmit light generated by the light source according to video data included in a video signal provided to the optical modulation device;

    a projection lens system configured to output light, transmitted by the optical modulation device, along a projection path;

    at least one battery configured to store electrical energy independent of an external power supply; and

    an electrical energy transport system configured to transmit the electrical energy from the at least one battery to the light source and the optical modulation device.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×