HOCHAUFLÖSENDER UND HOCHLUMINESENDER PLASMABILDSCHIRM UND ANSTEURUNGSVERFAHREN DAFÜR

摘要

When a gas discharge panel is driven, a voltage is applied between scan and address electrode groups to perform set-up. The voltage waveform has four intervals. In a first interval, the voltage is raised in a short time (less than 10 µs) to a first voltage, wherein 100 V ‰ first voltage < starting voltage. Then, in a second interval, the voltage is raised to a second voltage no less than the starting voltage and with an absolute gradient smaller than that for the voltage rise in the first interval (no more than 9 V/µs). Next, in a third interval, the voltage is lowered in a short time (no more than 10 µs) from the second voltage to a third voltage no more than the starting voltage. Following this, in a fourth interval, the voltage is lowered still further (for 100 µs to 250 µs) with a gradient smaller than that for the voltage fall in the third interval. The time occupied by the whole voltage waveform should be no more than 360 µs. This means that a wall charge can be properly accumulated, allowing stable addressing to be performed even when the pulse applied during the address period is short (no more than 1.5 µs). This lengthens the discharge sustain period and improves luminance.