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Proceedings Paper

Superhigh-resolution electron gun for color display CRT
Author(s): Hsing-Yao Jim Chen; Sen-Su Tsai
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Paper Abstract

There have been a few new trends for CRT electron gun design in recent years. First, beacause of the rapid improveznts in computer speed and uznory size, more elaborate and accurate computer modeling programs for electron gun design have develope . (1, 2, 3) More and more design engineers rely on the uses of computer modeling to do the design work. Even the US Patent Office has recently started to accept computer modeling results as interchangeable with actual test results. Second, for the high resolution color CRT eletron gun, most companies chose to adopt the COTY(4,5,6) type counon lens design which drastically reduces the aberration coefficient of the main lens. Third, for the best uniform spot performance over the whole sceen of an inline color cRT, a dynamic focusing and dynamic qiiadrupole lens are required. The above mentioned second and third items involve the asynnetric optics design. Most of the tiu, conventional intuitive thinking is not good enough for design optmization. This paper presents a new computer-'designed super high-resolution color electrn gun which asytanetric main lens and dynamic quadrupole region. We also present two cases of the nasured spot performance which are compared to our computer modeling prediction of the sa. design. This indicates that in the current range (from 100 uA to 400 uA) the high—resolution color display is most likely to be used, and the predicted 5% spot size is almost identical to the tested results

Paper Details

Date Published: 27 October 1992
PDF: 8 pages
Proc. SPIE 1815, Display Technologies, (27 October 1992); doi: 10.1117/12.131294
Show Author Affiliations
Hsing-Yao Jim Chen, Chunghwa Picture Tubes, Ltd. (Taiwan)
Sen-Su Tsai, Chunghwa Picture Tubes, Ltd. (Taiwan)

Published in SPIE Proceedings Vol. 1815:
Display Technologies
Shu-Hsia Chen; Shin-Tson Wu, Editor(s)

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