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A phosphor screen for high‐resolution CRTs
Author(s) -
Oki Kyoichi,
Ozawa Lyuji
Publication year - 1995
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1889/1.1984940
Subject(s) - phosphor , crts , materials science , optics , optoelectronics , computer science , computer graphics (images) , physics
— The resolution and image quality of small‐screen CRTs have been analyzed. The resolution is primarily determined by the size of the luminous spot, which is determined both by the electron gun and by the size of phosphor particles. Image quality on phosphor screens is controlled by the packing density of the phosphor particles and by the number of layers of phosphor particles in the screen. We have developed a phosphor screen with 1.5 layers of phosphor particles in which packing voids have been minimized by the use of dusting techniques. The new phosphor screen used in a 0.5‐in. CRT is capable of displaying sharp SVGA images (1000 × 800 pixels) that are comparable in quality with the images on 13‐in. CRTs.