Patent · US Expired

Projection type video display unit and illuminating device

US7465053B2 · kind B2 · utility

3Cited by
10References
44Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 26, 2003
Grant dateDec 16, 2008
Priority date
Expiry dateNov 20, 2024

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04N2005/745
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A lens array wheel 4 receives light irradiated in a direction parallel to its rotation axis, to cyclically deflect the light. On each of liquid crystal display panels 7R, 7G, and 7B, the light is circularly scrolled, the effect of substantial intermittent illumination is produced, and hold blurring is reduced. A panel driver 15 starts to feed a pixel-driving signal in the succeeding frame to a pixel existing at a position, through which an illuminating area passes, on each of the liquid crystal display panels 7R, 7G, and 7B.

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