The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 13, 1989

Filed:

Apr. 26, 1988
Applicant:
Inventors:

Cyril Hilsum, Pinner, GB;

Robert L Van Ewyk, Rickmansworth, GB;

Ingrid M O'Connor, London, GB;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
3503 / ; 2522991 ; 2522995 ; 3503 / ;
Abstract

A display device is described which comprises a liquid crystal host material and an anisotropically emitting fluorescent guest material dissolved in the host material such that the molecules of the guest material align with the molecules of the host material. An electric field applied across the host material causes the direction of radiation emitted by the guest material incident on an interface between two materials of different refractive index to vary so as to control the amount of radiation emitted by the display.


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