Multi-Beam Electron Gun for 5 Million Pixels CRT

Yasunobu AMANO  Masahiko MIZUKI  Hiroshi TOBITA  Norifumi KIKUCHI  

Publication
IEICE TRANSACTIONS on Electronics   Vol.E84-C   No.11   pp.1647-1652
Publication Date: 2001/11/01
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Electronic Displays)
Category: CRTs
Keyword: 
CRT,  electron gun,  multi-beam,  

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Summary: 
The design of an electron gun was examined from the viewpoints of pre-focus lens, main lens, corner focus and cathode current. Accordingly, multi-beam electron gun has been developed to catch up with the remarkable progress of resolution in computer peripheral devices such as digital still cameras and video boards. Multi-beam electron gun has two slot beam apertures of G1 for one cathode, and a key point of its design is to realize two-beam simultaneous convergence and focusing. To satisfy this condition, the divergence angles of electron beam bundles were designed. With this multi-beam electron gun that is superior in both of beam spot size and drive voltage, the 5 million pixels CRT could be realized.