Direct-view and projection CRTs for HDTV

Author

Ashizaki, S. ; Suzuki, Y. ; Mitsuda, K. ; Ohmae, H.

Author_Institution

Matsushita Electron. Corp., Osaka, Japan

Volume

34

Issue

1

fYear

1988

fDate

2/1/1988 12:00:00 AM

Firstpage

91

Lastpage

99

Abstract

A series of direct-view and projection type CRTs has been developed for high-definition TV (HDTV) use. The technical aspects of direct-view 40-in and 30-in CRTs and projection 7-in and 12-in CRTs are described. The direct-view CRTs have an aspect ratio of 5:3 and a resolution of more than 1000 TV lines. With the fine and uniform pictures displayed over the entire screen, the CRTs are suitable for studio monitors and are also expected to be used for home TV sets. The projection CRTs have been developed for displaying picture size larger than 40 in. With the 7-in projection CRT, a resolution of 1000 TV lines and a peak brightness of 120 ft-L have been realized on a 50-in projection screen. With the 12-in CRT a 180 in projection screen with a peak brightness of 15 ft-L, about twice as high as a conventional CRT, has been realized

Keywords

colour television picture tubes; television systems; 12 in; 180 in; 30 in; 40 in; 50 in; 7 in; HDTV; direct view CRT; home TV sets; projection CRTs; studio monitors; Brightness; Cathode ray tubes; Electron beams; Glass; HDTV; High definition video; Large screen displays; Phosphors; TV; Tensile stress;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.75365

Filename

75365