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:
Oct. 14, 1997
Filed:
Apr. 16, 1996
Applicant:
Inventor:
Seoug Wan Kang, Kyungsangbuk-do, KR;
Assignee:
LG Electronics, Inc., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
428690 ; 428691 ; 427 64 ; 427 68 ; 25230136 ; 313478 ; 313474 ; 313477 ; 348781 ; 348786 ;
Abstract
The present invention is to improve color purity and brightness of a color Braun tube by constructing a fluorescent film for a red fluorescent material as a laminated structure. The present invention relates to a structure of a fluorescent film for a color Braun tube wherein the fluorescent film of the red fluorescent material comprises fluorescent material layers having a laminate structure made of two different compositions of Y.sub.2 O.sub.2 S: Eu and Y.sub.2 O.sub.3 :Eu.