| 摘要 |
The present invention proposes a Braun Tube for projectors having an illuminant layer provided on a phosphor screen, the illuminant layer including Zinc Silver Aluminum Oxide (ZnS:Ag, Al) as a blue color illuminant; Yttrium Terbium Silicate (Y2SiO5:Tb) as a green color illuminant; and Yttrium Europium Oxide (Y2O3:Eu) as a red color illuminant, all illuminants having particle size of 5 to 7 mum. As a result, it is possible to realize a Braun Tube for projectors, in which an extended life cycle is achieved by constraining the degradation of the illuminant, constraining the browning phenomenon as well as improving the spot size of the electron beam thereof.
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