| 摘要 |
PROBLEM TO BE SOLVED: To provide a fluorescent display tube which eliminates various problems caused by a protrusion of an exhaust hole plug by removing it. SOLUTION: A hollow part 4-2b is provided in a plate glass 4-2. The outlet of an exhaust hole 4-2a is made to face the bottom face 4-2c of the hollow part 4-2b. The whole of an exhaust hole plug 4-4 is put in the hollow part 4-2b to cover the outlet of the exhaust hole 4-2a. COPYRIGHT: (C)2005,JPO&NCIPI
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