| 摘要 |
PURPOSE: To prevent an abnormal operation and improve reliability by completely separating a scanning electrode and a holding electrode. CONSTITUTION: An anode and a fluorescent film 18 are formed on an upper plate front glass 11, a first holding electrode 14 is formed on a lower plate back glass 13, a derivative 15 is applied thereon to make a cathode 16. Second holding electrodes 17 are provided parallel alternately to the cathodes 16, and a derivative 15 is applied onto the holding electrodes 17 and the cathodes 16. The electrodes 17, 14 are arranged on the same plane. A partition may be provided on either the upper plate or the lower plate. The distance b1 between the cathode (or first holding electrode) and the second holding electrode is made shorter than the distance b2 between the holding electrode and the next cathode (or the next first holding electrode) to prevent crosstalks. Thus, holding electrodes 4, 3 to which pulses are applied from the holding pulse applying circuit 10 are separated completely from the anode 1 and the cathode 2, so that stable memory operation is enabled.
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