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.
Patent No.:
Date of Patent:
Sep. 19, 1989
Filed:
Apr. 21, 1988
Applicant:
Inventors:
Richard A Pidsosny, Canton, MI (US);
Frederick J Porter, Farmington Hills, MI (US);
Assignee:
Ford Motor Company, Dearborn, MI (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
350337 ; 350335 ;
Abstract
A system in which several colors of the spectrum are selectable to be displayed having common polarity and with high contrast against a black background, utilizing liquid crystal cells along with linear and color polarizers disposed along an optical axis so that comparable results in either reflective or transmissive modes are achieved, with appropriate light sources.