| 摘要 |
PURPOSE:To obtain the effect of priming without decreasing the contrast nor the color purity by setting the rising of a voltage pulse for preliminary discharging later than the rising of a voltage pulse for the discharging of a screen display. CONSTITUTION:A pulse waveform 1 in a display discharge period is a normal fast rising rectangular waveform, but a pulse waveform 2 in a preliminary discharging period rises slower than a pulse waveform in a display discharging period. A pulse which has high light emission efficiency of vacuum ultraviolet light and rises fast is used as the pulse for display discharging and a pulse which is low in the light emission efficiency and rises slowly is used for preliminary discharging, so the contrast and color purity has a little deterioration even after the priming, whose effect has no variation. Consequently, the inferiority of the contrast and color purity is improved. |
