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:
Jul. 18, 2000
Filed:
Dec. 26, 1996
Applicant:
Inventors:
Assignee:
Casio Computer Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
345 76 ; 345 77 ; 345 81 ; 3151693 ; 313504 ; 313507 ;
Abstract
A display device includes an EL element for signal light which is based on the segment matrix drive scheme and causes a plurality of areas to emit signal light containing light in a wavelength range other than the visible range, a photoconductive layer which generates carriers upon incidence of signal light, and an EL element for display light which is adjacent to the photoconductive layer. Signal light is irradiated onto desired areas of the photoconductive layer. Carriers are injected from the irradiated areas into the EL layer to emit display light containing visible light.