Patent · US Expired

Backlighted liquid crystal display unit

US5253089A · kind A · utility

36Cited by
4References
2Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJun 5, 1992
Grant dateOct 12, 1993
Priority date
Expiry dateJun 5, 2012

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02B6/0071
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

In a transmission-type liquid crystal display unit having an edge-type backlight in which light from a fluorescent lamp is conducted through a light-conducting plate to the rear surface of the display unit, the light-conducting plate has a light-receiving end face which is curved along the cylindrical wall of the fluorescent lamp and maintained in contact with the latter, so that the light from the fluorescent lamp is conducted to the display surface with high efficiency.

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