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Proceedings Paper

Color picture element tube for large-screen display
Author(s): Shiping Ruan
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Paper Abstract

Vacuum fluorescent displays (VFDs) have been used for monochrome video display for about twenty years. With the phosphor of ZnO:Zn, the VFD has the characteristics of high luminance, high luminous efficiency, long lifetime and beautiful color. A pentode VFD has been developed for indoor large-screen color mosaic display. There are three layers of grids in the pentode VFD. Two of the three layer grids are arranged perpendicularly for X-Y matrix addressing. Under the anode voltage of 2.5 kV, this display device can provide with the luminance of red: 1700 cd/m2, green: 3800 cd/m2 and blue: 1300 cd/m2. Its luminous dot density is 15625 dots/m(superscript 2 and its pixel arrangement is R-G-B-G quadruple pattern. One VFD contains 16 X 16 luminous dots and its size is 127 X 127 mm2. This paper will report mainly on the characteristics of the three primary phosphor excited by the electrons of below 2.5 KeV. The structure of the pentode VFD, the voltage parameters related to the luminance and the turn on and cut off voltage of every grid are also discussed.

Paper Details

Date Published: 30 September 1996
PDF: 7 pages
Proc. SPIE 2892, Display Devices and Systems, (30 September 1996); doi: 10.1117/12.253366
Show Author Affiliations
Shiping Ruan, Hangzhou Univ. (China)


Published in SPIE Proceedings Vol. 2892:
Display Devices and Systems
Eric G. Lean; Zhiren Tian; Bao Gang Wu, Editor(s)

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