| 摘要 |
PROBLEM TO BE SOLVED: To provide a cold-cathode tube light-emitting device ensuring stable luminance and a long life even in a low-temperature environment. SOLUTION: A transparent conductive film 2, made of a thin film of oxide containing at least one element of indium, tin and zinc, is formed on the valve surface of a cold-cathode tube 1, and a pair of linear electrodes 3 are formed on the transparent conductive film 2 in the longitudinal direction of the cold- cathode tube 1. After heating the cold-cathode tube 1 by supplying electricity to the pair of linear electrodes 3 from a direct-current power source 5 for transparent conductive film, the cold-cathode tube 1 is lit up with a power source 4 for cold-cathode tube lighting up. |
