Patent · US Expired

Liquid crystal display

US6334689B1 · kind B1 · utility

15Cited by
26References
3Claims
0Family size

Assignees

Inventors

Key dates

Filing dateFeb 25, 1999
Grant dateJan 1, 2002
Priority date
Expiry dateFeb 25, 2019

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02B6/0053
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A liquid crystal display includes a liquid crystal display panel having a plurality of liquid crystal cells and aback light that irradiates the liquid crystal display panel with irradiation light. The back light includes a light source and a light guide plate having one side arranged adjacent the light source and having a planar surface with a plurality of small concaves. The planar surface is substantially parallel to a liquid crystal cell face and a plane shape of the small concaves is substantially rectangular.

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