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:
Feb. 08, 1977
Filed:
Nov. 03, 1975
Applicant:
Inventors:
Philip Henry Wisbey, Colchester, EN;
Paul Kevin Kimber, Bishop's Stortford, EN;
Assignee:
The Marconi Company Limited, Chelmsford, EN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47B / ; A47B / ;
U.S. Cl.
CPC ...
313500 ; 313112 ; 313113 ; 350156 ; 357 17 ;
Abstract
An LED display is provided with a reflective surface over those parts of the display which do not themselves emit light. This enables a polarizer to be used to enhance the display contrast under conditions of bright ambient light.
Quick Actions:
Wisbey, Philip. (1977). Light emissive diode displays (U.S. Patent No. 4007396). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4007396
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