Patent · US Expired

Color projection display system

US7690796B2 · kind B2 · utility

14Cited by
26References
40Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 10, 2004
Grant dateApr 6, 2010
Priority date
Expiry dateFeb 10, 2024

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04N13/359
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

The present invention is a 3D/2D convertible color projection display system with two color LCoS panels, which enable the system to project two orthogonal polarized images. When the two images correspond to different view angles, each eye of an observer wearing a pair of polaroid glasses can only see one of the images, creating a 3D stereoscopic effect. When the two images correspond to the same view angle, then the observer, without any special glasses, can watch regular 2D images with multiple primary colors.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.