Patent · US Expired

Display device

US6011528A · kind A · utility

6Cited by
24References
114Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 28, 1994
Grant dateJan 4, 2000
Priority date
Expiry dateNov 28, 2014

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02F1/13336
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A transparency viewing device including a faceplate adapted for mounting at least one transparency thereon, a passive matrix LCD array comprising a plurality of row electrodes and a plurality of column electrodes separated by liquid crystal material, one of said plurality of electrodes having N electrodes and the other of said plurality of electrodes having M electrodes whereby the intersections of the row and column electrodes define a matrix of M.times.N pixel elements arranged in rows and columns, which pixels are excited by an RMS voltage difference between the two electrodes intersecting a pixel and a driver which electrifies the row and column electrodes such that at least one of a plurality n of the N electrodes or a plurality m of the M electrodes are identically electrified, wherein n.ltoreq.N and m.ltoreq.M.

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