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Proceedings Paper

5-inch densely packed poly-crystal phosphor screen for HDTV projection CRT
Author(s): Gang Yang; Jianbo Cheng; Qionghua Wang; Wenbin Chen; Quan Jiang; Zulun Lin; Chunjing Zhao; Jun Wang; Hui Lin; Yourun Zhang; Qijun Ran
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Paper Abstract

A novel 5-in. R.G.B densely packed poly-crystal MgAl2O4 (magnesium-aluminum-oxide) phosphor screens with multi-layer interface filter have been developed. The filter is a multi-layer alternate high and low index of refraction film which was fabricated by depositing high index of refraction of titanium oxide and low index of refraction of silicon oxide. The 5-in.R.G. B densely packed poly-crystal phosphor screens with the filter have 60% more luminance than those of common R.G. B poly-crystal phosphor screens, and the area of their chromaticity is almost 10% larger than that of common poly-crystal phosphor screen. The 5-in.R.G. B densely packed poly-crystal phosphor screens with multi-layer interface filter are fabricated by using a centrifugal sedimentation method. The resolution of densely packed poly-crystal phosphor screen with multi-layer interface filter is higher than that of conventional poly-crystal phosphor screen. An experimental 52-inch TV set adopting the set of 5-inch densely packed poly-crystal projection CRT with multi-layer interface filter has very high resolution of 2000 TV lines and 1800 cd/m2 luminance, and it is easy to realize the HDTV display.

Paper Details

Date Published: 10 April 2005
PDF: 9 pages
Proc. SPIE 5740, Projection Displays XI, (10 April 2005); doi: 10.1117/12.588518
Show Author Affiliations
Gang Yang, Univ. of Electronic Science and Technology of China (China)
Jianbo Cheng, Univ. of Electronic Science and Technology of China (China)
Qionghua Wang, Univ. of Electronic Science and Technology of China (China)
Wenbin Chen, Univ. of Electronic Science and Technology of China (China)
Quan Jiang, Univ. of Electronic Science and Technology of China (China)
Zulun Lin, Univ. of Electronic Science and Technology of China (China)
Chunjing Zhao, Univ. of Electronic Science and Technology of China (China)
Jun Wang, Univ. of Electronic Science and Technology of China (China)
Hui Lin, Univ. of Electronic Science and Technology of China (China)
Yourun Zhang, Univ. of Electronic Science and Technology of China (China)
Qijun Ran, Univ. of Electronic Science and Technology of China (China)


Published in SPIE Proceedings Vol. 5740:
Projection Displays XI
Ming H. Wu, Editor(s)

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