| 摘要 |
PURPOSE:To obtain a cathode ray tube provided with a film stable in electrification-proof performance by forming a SiO2 film from Si alcoholate on an external surface of a face plate. CONSTITUTION:A continuous SiO2 film is formed on an external surface of a face plate of a cathode-ray tube by coating and firing of Si alcoholate in processes of dipping and spin-coating and the like. This SiO2 film is preferably made 0.04mum or more and 0.15mum or less in thickness. This SiO2 film is earthed for use. Hence, a cathode-ray tube provided with an electrification-proof film, which is stable in electrification-proof performance, can be obtained with easy manufacture. |
