A new 9" projection CRT, with dichroic coating for HDTV

Author

Okuda, Hiroshi ; Takada, Junichi ; Iwasaki, Yasuo ; Hashimot, Noritsuna ; Nagao, Chie

Author_Institution

Mitsubishi Electr. Corp., Tokyo, Japan

Volume

36

Issue

3

fYear

1990

fDate

8/1/1990 12:00:00 AM

Firstpage

436

Lastpage

443

Abstract

The authors have developed a new 9 inch CRT (cathode ray tube) with dichroic coating and magnetic focusing system with larger aperture lens, and have obtained high picture quality unprecedented for HDTV (high-definition television). The brightness and contrast have been improved by a multiple interference filter and a high brightness phosphor which is the most suitable for the interference filter. Using the dual dichroic coating, a higher color purity has been obtained for green that with direct-view type systems. High resolution has been achieved with the larger aperture lens

Keywords

cathode-ray tube displays; colour television picture tubes; focusing; high definition television; magnetic lenses; optical filters; phosphors; 9 inch; HDTV; dual dichroic coating; high brightness phosphor; larger aperture lens; magnetic focusing system; multiple interference filter; projection CRT; Apertures; Brightness; Cathode ray tubes; Coatings; Filters; HDTV; Interference; Lenses; Magnetic separation; TV;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.103157

Filename

103157