JPH02219093A - How to drive an AC plasma display panel - Google Patents

Abstract

PURPOSE:To suppress the heat generation of a switching element and to preclude its breakage by interrupting scan-side maintaining pulses from erasure pulse application to a write pulse and applying maintaining pulses only to a data side. CONSTITUTION:The write pulse is applied at time t1 to a data-side X electrode group and a scan-side Y electrode group to write data. Then the maintaining pulses are applied to X and Y electrodes alternately to make a display. A display period T1 is determined according to the extent of gradations and an erasure pulse is applied to Y electrodes at time t2 erasure the display. When this erasure pulse is applied, the maintaining pulses to be applied to the Y electrodes are interrupted continuously until a next write pulse is applied. Consequently, the operation of a switching element for scan-side Y electrodes is interrupted. The heat generation of the switching element for the scan-side electrodes is suppressed and the switching element is prevented from breaking.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to an AC type plasma display panel (hereinafter referred to as an AC type plasma display panel).
- PDP).

"Prior Art" Figure 1 shows an example of the access timing of AC-PDP.6For example, if the light emission time (number of times) at bit 0 is 2°=1, bit 1°2.3, 4.5 .6
．． 7, respectively 21 = 2.2" = 4.23 = 8.2'
=16.2'=32.2@=64.2'=128, and multi-level halftone display is performed. The access waveform in this case is as shown in Figure 2. When data is written to the data-side X thin electrode and the scan-side Y thin electrode using a write pulse, it is displayed using alternate X and V sustain electrodes, and the erase pulse will be deleted.

[Problem to be solved by the invention] Since writing or erasing as described above is performed simultaneously for one line, a MOSF that switches the scanning side Y thin electrode is required.
There is a problem in that a large current flows through a switching element such as an ET, which increases the load on the switching element, generates heat, and leads to a reduction in the safe operating area and a reduction in drive capability.

The present invention aims to suppress heat generation of switching elements and prevent their destruction.

"Means for Solving the Problems" The present invention provides a substrate with an X electrode group on the data side and a Y electrode group on the scanning side, which are insulated from each other and intersect with each other.

A phosphor layer is provided on a surface of the front plate facing the electrode group, a display discharge cell group is formed at each intersection, and sustain pulses are alternately applied to the X and Y electrodes to control the display period. An AC plasma display panel characterized in that the sustaining pulse on the scanning side is interrupted from application of the erasing pulse to the writing pulse, and is applied only to the data side. This is the driving method.

"Example" Hereinafter, one embodiment of the present invention will be described based on the drawings.

In FIG. 3, a write pulse is applied to the data side X electrode group and the scanning side Y electrode group at time t to write data. Thereafter, one display period T1 during which sustain pulses are applied alternately to the X and Y electrodes is determined by the degree of gradation, and an erase pulse is applied to the Y electrodes at time t2 to erase the display. When this erase pulse is applied,
The sustain pulse to be applied to the Y electrode is interrupted. This interruption lasts until the application of the next write pulse, resulting in
The switching element of the scanning side Y electrode interrupts its operation.

"Effects of the Invention" Since the present invention is driven by the method described above,
Heat generation of the switching element of the scanning side electrode is suppressed, and destruction of this switching element can be prevented. It also has the effect of reducing power loss.

[Brief explanation of the drawing]

Claims (1)

[Claims] (1) A data-side X electrode group and a scanning-side Y electrode group are provided on the substrate so as to be insulated from each other and intersect with each other, a phosphor layer is provided on the surface of the front plate facing the electrode group, and the In the method, a display discharge cell group is formed at each intersection, sustain pulses are alternately applied to the X and Y electrodes, and a display period is controlled to display a half tone. A method for driving an AC plasma display panel, characterized in that the application of the erase pulse is interrupted from the application of the erase pulse to the write pulse, and is applied only to the data side.