Patent · US Expired

Backlighting system for liquid crystal displays having a non-planar fluorescent lamp

US5648827A · kind A · utility

26Cited by
4References
7Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJun 22, 1995
Grant dateJul 15, 1997
Priority date
Expiry dateJun 22, 2015

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02F1/133611
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A liquid crystal display is provided which has improved wide angle viewing characteristics. The liquid crystal display includes a liquid crystal matrix. A non-planar fluorescent lamp positioned on a first side of the liquid crystal matrix has a center which traverses the fluorescent lamp in at least one longitudinal direction. A distance between the first side of the liquid crystal matrix and the fluorescent lamp center in a first portion of the fluorescent lamp is less than a distance between the first side of the liquid crystal matrix and the fluorescent lamp center in a second portion of the fluorescent lamp.

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