10 April 2005 5-inch densely packed poly-crystal phosphor screen for HDTV projection CRT
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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.
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Gang Yang, Gang Yang, Jianbo Cheng, Jianbo Cheng, Qionghua Wang, Qionghua Wang, Wenbin Chen, Wenbin Chen, Quan Jiang, Quan Jiang, Zulun Lin, Zulun Lin, Chunjing Zhao, Chunjing Zhao, Jun Wang, Jun Wang, Hui Lin, Hui Lin, Yourun Zhang, Yourun Zhang, Qijun Ran, Qijun Ran, } "5-inch densely packed poly-crystal phosphor screen for HDTV projection CRT", Proc. SPIE 5740, Projection Displays XI, (10 April 2005); doi: 10.1117/12.588518; https://doi.org/10.1117/12.588518
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