| 摘要 |
In a gas discharge display device with a gas discharge space which is separated by a hole matrix from an electron acceleration space, helium, to which an amount of 0.1 to 10% of at least one of the gases argon, crypton, xenon, nitrogen or carbon dioxide is admixed, is used as the filling gas with an overall pressure of 0.5 to 5 mbar to obtain an enhanced contrast effect on the picture screen.
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