Title :
Fast-switching twisted nematic electro-optical shutter and colour filter
Author :
Raynes, E.P. ; Shanks, I.A.
Author_Institution :
Royal Radar Establishment, Malvern, UK
Abstract :
We report a method for operating twisted nematic devices with rapid turnoff times by using a nematic material with variable dielectric anisotropy. These are useful as fast shutters and colour switches, and can be operated at a 25 Hz repetition rate.
Keywords :
electro-optical devices; liquid crystal devices; optical filters; colour; colour filter; dielectric phenomena; electrooptical shutter; liquid crystal devices; switches;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19740088
