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:
Jun. 11, 1991
Filed:
Oct. 20, 1989
Applicant:
Inventor:
Monsieur J Le Gars, Maurepas, FR;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V / ;
U.S. Cl.
CPC ...
362240 ; 362293 ; 362800 ;
Abstract
A display device comprises luminous elements such as individual or grouped light-emitting diodes or the like emitting light of a particular color. Spaced outlet windows for these luminous elements are provided in a surface the whole of which is covered by a first filter the same color as the light emitted by the luminous elements. A second filter the complementary color to the first filter covers the spaces on this surface between the windows.