Driving method of opposite-discharge type plasma panel display

Abstract

The invention discloses a drive method for subtending discharging plasma plane display. When the subtending discharging plasma plane display keeps discharging, the drive circuit separately exerts a discharging pulse to several discharged electrodes of said plasma plane display, the phase of the discharging pulse in any discharged electrode is different from the adjacent discharged electrode by 180 degree, that is the voltage waveform phase difference between the odd number and even number pixel in period of maintaining discharging, so the discharging direction of adjacent corresponding discharging unit is contrary evenly to countervail the oscillation, eliminate the noise generated by the oscillation of plate structure in discharging, decrease the peak current, minimize the load of circuit, increase the working life of circuit and reliability, reduce the electromagnetic radiation of discharging and cut the electromagnetic interference effectively.

Description

technical field [0001] The present invention relates to a driving method of a plasma flat panel display (Plasma Display Panel, referred to as PDP), especially a driving method of a high-efficiency and low-noise opposite discharge (opposed discharge) type plasma flat panel display. The phase of the sustain pulse (sustain pulse) on the (sustain electrode) is 180 degrees different from the phase of the sustain discharge pulse on the adjacent sustain discharge electrode, so that the discharge direction of the corresponding discharge cell is exactly On the contrary, to cancel the vibration generated by each other, effectively eliminate noise, and reduce its peak current and electromagnetic interference. Background technique [0002] In the manufacturing technology of the traditional opposite AC discharge type (AC type for short) plasma flat panel display (Plasma DisplayPanel, PDP for short) 10, refer to as shown in Fig. 1, mainly make different active layers on two glass substrat...

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Problems solved by technology

[0006] However, in the above-mentioned opposite discharge type plasma flat panel display 10, the barrier walls 122 on the back substrate 12 are formed by the metal conductors around the shadow holes 21 on the shadow mask 20, the barrier walls 122 made of metal are formed during the discharge. The noise generated when the unit 13 is discharging is far more serious than the barrier wall made of traditional glass material. In addition, because the aforementioned opposite discharge type plasma flat panel display 10 is in the sustain period (sustain period), as shown in FIG. 3 , The phase of the sustain pulse on the nth scanelectrode (nth scanelectrode) is the same as the phase of the sustain pulse on the adjacent n+1th sustain discharge electrode, that is, an odd number The voltage waveforms of the pixels and the even-numbered pixels during the sustain discharge period are in the same phase, so the direction of the noise generated by each discharge cell 13 during discharge, that is, the vibration direction, is exactly the same, which strengthens the noise generated by it. Therefore, in When making the opposite discharge type plasma flat panel display 10, if the inner edge of the front substrate is not closely attached to the upper edge of the shadow mask, the gap formed therebetween will make the noise problem generated by the panel during discharge more serious. Therefore, it is necessary to strictly control the flatness of the front substrate, the back substrate and the shadow mask during the manufacturing process, in order to reduce the gap between the front substrate and the shadow mask due to unevenness, so as to effectively reduce the noise problem. This strict control procedure, However, it increases the difficulty of the manufacturing process and the defective rate of finished products

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