Patent · US Expired

Display device with improved contrast

US6580212B2 · kind B2 · utility

56Cited by
4References
9Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMay 31, 2000
Grant dateJun 17, 2003
Priority date
Expiry dateMay 31, 2020

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH10K71/13
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A display device comprising: a light-emissive structure including two regions of light emissive material for emitting light in a viewing direction, the regions being spaced apart in a direction perpendicular to the viewing direction the light-emissive structure being capable of guiding light emitted from one of the light-emissive regions towards the other emissive region; and a barrier structure located between the light-emissive regions for inhibiting the propagation of light guided from the said one of the light-emissive regions to the other light-emissive region.

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