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:
Apr. 02, 2002
Filed:
Apr. 28, 2000
Applicant:
Inventors:
Jong-Hyuk Lee, Seoul, KR;
Jung-Hwan Park, Suwon, KR;
Yoon-Hyung Cho, Seoul, KR;
Hae-Sung Lee, Seoul, KR;
Dong-Sik Zang, Suwon, KR;
Assignee:
Samsung SDI Co., Ltd., Kyungki-Do, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 2/928 ; H01J 2/989 ;
U.S. Cl.
CPC ...
H01J 2/928 ; H01J 2/989 ;
Abstract
A CRT has an improved contrast with the provision of a filter layer where nano-sized metal particles and colored particles are dispersed in a dielectric matrix to selectively absorb light in predetermined wavelengths, specifically wavelengths between peak wavelengths of primary colors emitted by phosphors coated on the inner surface of the faceplate. The improved contrast is a result of the metal particles in a dielectric matrix resonating with particular wavelengths and thus absorbing them.