×

Autostereoscopic display

  • US 6,831,678 B1
  • Filed: 12/16/1999
  • Issued: 12/14/2004
  • Est. Priority Date: 06/28/1997
  • Status: Expired due to Term
First Claim
Patent Images

1. A three dimensional video display including:

  • a screen (4) on which successive frames of patterns can be displayed and means (6) for projecting an array of collimated light beams which can illuminate the whole screen (4) through a series of discrete directions in synchronism with the display of successive frames;

    wherein said screen (4) includes a layer of liquid crystal material (13) located between a front plate (8) and a rear plate (9);

    a layer of light sensitive material (15), operable to change the voltage on the adjacent layer (13) of liquid crystal material;

    a reflective layer (14) between the liquid crystal material (13) and the light sensitive material and electrode structures (10, 11) on the inner faces of plates (8, 9) for applying a voltage across the liquid material (13), the electrodes (10, 11) forming collectively an array of separately addressable segments in the liquid crystal layer (13) and each collimated light beam 6 is arranged to illuminate the whole of front plate 8.

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