发明名称 FLUORESCENT DISPLAY TUBE
摘要 PURPOSE:To prevent any flaw or discoloration of a colored film or a colored plastic plate by providing a color filter, which consists of an oxide matter and a transparent conductive film, on the inner wall of a cover glass. CONSTITUTION:The inner wall of a cover glass 1 is provided with an oxide film 2 functioning as a color filter and a transparent conductive film 3, in that order. The luminous color of a fluorescent dispaly tube is diversified by the color filter film. The transparent conductive film 3 is made of SnO2, In3O2 or a solid solution between SnO2 and In3O2, and has a thickness of several hundred Angstrom . It is formed by, for example, subjecting Sn, In or an Sn-In alloy to an sputtering performed in an oxidizing atmosphere. As to the oxide film 2 functioning as a filter, a film having blue transmission color is obtained by, for example, fixing WO3-x by an electron-beam vapordeposition method. In addition, a filter having red transmission color is obtained by properly selecting the thickness and the layer number of a multi-layered film made of TiO2-SiO2.
申请公布号 JPS5873943(A) 申请公布日期 1983.05.04
申请号 JP19810171161 申请日期 1981.10.26
申请人 KAGOSHIMA NIPPON DENKI KK;NIPPON DENKI KK 发明人 NAGAI HIKARI;NISHIZUKA KOUJI
分类号 H01J31/15 主分类号 H01J31/15
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