Patent · US Expired

Image display mechanism and image display device

US6908198B2 · kind B2 · utility

4Cited by
16References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 8, 2004
Grant dateJun 21, 2005
Priority date
Expiry dateOct 8, 2024

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03B21/28
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

In order to prevent dust from sticking to the LCD panel, to prevent the LCD panel from being heated and to suitably adjust the position of the LCD panel, a duct is provided between cooling means for a light source and cooling means for a LCD panel to send cooling air from the LCD panel side to the light source side. Therefore, a light incidence/reflection plane of the LCD panel is disposed in an almost hermetically closed space and an optical path from an integrator lens to the LCD panel is formed in the almost hermetically closed space.

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