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:
Mar. 09, 2004
Filed:
May. 21, 2002
Applicant:
Inventor:
Charles I. Zovko, Chandler, AZ (US);
Assignee:
Durel Corporation, Chandler, AZ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 2/918 ;
U.S. Cl.
CPC ...
H01J 2/918 ;
Abstract
Light scattering particles are added to the ink used for printing the cascading layer. The particles and cascading material are then printed in the same layer. Light entering the cascading layer is scattered, re-entering the cascading material thereby increasing the effectiveness of the cascading material and enabling one to use less material. Because less cascading material is used, the cost of the EL lamp is reduced and cascading efficiency is increased. The light scattering particles and the cascading material are in an overprint or are in the phosphor layer.