| 摘要 |
PROBLEM TO BE SOLVED: To provide a spacer for electron beam excitation display, capable of stabilizing images by stabilizing the track of electrons emitted from an electron emitting element toward a fluorescent film. SOLUTION: A face plate 11 and a rear plate 12 are joined airtghtly through a support frame 13, and constitute together with the frame 13 a vacuum vessel of airtight, atmospheric pressure sustaining structure. As atmospheric pressure support member, a plurality of glass spacers 20 are inserted between the face plate 11 and rear plate 12. Each glass spacer 20 is provided at the surface with a film 21, having projections and recesses. The film 21 is structured, for example so that SiO2 particulates are dispersed uniformly in an SiO2 film matrix, and the Sin2 particulates dispersed in the matrix produce projections and recesses at the film surface.
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