Patent · US Expired

Liquid crystal display screen with backlighting

US6683659B2 · kind B2 · utility

3Cited by

7References

20Claims

0Family size

Assignee

KONINKLIJKE PHILIPS ELECTRONICS NV · NL

Inventors

Juergen Dirscherl · Wertheim, DE
Markus Klein · Glückstadt, DE
Hans Nikol · Aachen, DE
Rob Snijkers · Landgraaf, NL

Key dates

Filing date	Sep 13, 2001
Grant date	Jan 27, 2004
Priority date	—
Expiry date	Dec 14, 2021

Classification

Technology area (CPC G)Physics
CPC primaryG02F1/1333
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A liquid crystal display screen comprising a liquid crystal layer and a first and a second transparent substrate flanking said liquid crystal layer, and comprising means for influencing the transmission state of the liquid crystal layer, and a phosphor layer, containing at least one phosphor in the form of phosphor dots, on the second substrate, and comprising a third substrate, which is arranged opposite the second substrate and connected with said second substrate so as to form a gastight gas discharge vessel filled with a filling gas, and comprising means for igniting and maintaining a dielectrically impeded discharge in the gas discharge vessel.

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