Patent · US Expired

Color display device having short decay phosphors

US5760542A · kind A · utility

3Cited by

17References

10Claims

0Family size

Assignee

U.S. Philips Corporation · US

Inventors

Helmut Bechtel · Aachen, DE
Wolfram Czarnojan · Aachen, DE
Markus Haase · Aachen, DE

Key dates

Filing date	Sep 16, 1996
Grant date	Jun 2, 1998
Priority date	—
Expiry date	Sep 16, 2016

Classification

Technology area (CPC H)Electricity
CPC primaryH01J29/20
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A color display device, with an electron beam source and with an arrangement of pixels defined by blue, green and red-luminescing material, and including means for exciting the pixels, by scanning the pixel arrangement with excitation pulses a line at a time, exhibits enhanced luminance, is enhanced at a given radiation power and improved linearity of the luminance in dependence upon the electron energy density, by using luminescent materials at least two of which have a luminescence decay time shorter than the excitation pulse lengths.

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