| 摘要 |
PROBLEM TO BE SOLVED: To provide a panel for a cathode ray tube having excellent electromagnetic wave shielding ability, reflection preventing ability, and high film strength while causing no change in film permeability and reflecting colors due to a heat treatment at the time when manufacturing the cathode ray tube. SOLUTION: In this panel for a cathode ray tube, a first thin film 11 containing a ruthenium corpuscle having a film thickness of 50 nm or more, permeability of 90% or more, and a surface resistance of 104Ω/m2 is formed on the outer surface of a panel glass 10, and a second thin film 12 having a SiO2 corpuscle as a main ingredient is formed on the first thin film 11. The first and second thin films 11, 12 are heated for at least 60 minutes under a temperature of 450 deg.C or higher, and are baked under a temperature condition having 500-520 deg.C as the highest temperature when applying heat treatment.
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