Patent · US Expired

Back light module

US6871979B2 · kind B2 · utility

17Cited by
2References
19Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMay 6, 2003
Grant dateMar 29, 2005
Priority date
Expiry dateJun 6, 2023

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02F2201/503
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A back light module disposed under a display panel has at least a light source generator for generating light beams, a diffusing plate for scattering the light beams to the display panel, a light guide plate (LGP) for scattering the light beams to the diffusing plate, a reflecting sheet for scattering the light beams to the light guide plate. The reflecting sheet has at least an opening for dissipating heat generated by the operation of the light source generator of the back light module.

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