Investigation Of The Characteristic Of Discharge Cell In Plasma Display Panel

In this thesis, the static and dynamic firing characteristics of PDP discharge cell have been studied by numerical simulation according to the paschen's law. The compatibility of various structures of PDP is considered as the simulation software is developed. The firing voltages along different discharge paths are calculated in conventional AC coplanar plasma display panel (ACCPDP) and shadow mask plasma display panel (SMPDP). And the effects of the height of discharge space, thickness of dielectric layer, dielectric constant of dielectric layer, thickness of phosphor layer on firing characteristics are investigated. The results show that the firing voltage of the SMPDP is lower than that of the ACCPDP, and the influence of various structure factors mentioned above on SMPDP are close to or lower than that of ACCPDP. The influence of various voltages on X electrode of ACCPDP (Vx) and the voltage on metal barrier (Vm) of SMPDP in address period is also studied. A positive Vx and low negative Vm are helpful for better surface charge accumulation and lower sustaining voltage.In addition to the simulation study, the macro PDP cells of different PDP structure are designed and fabricated based on the similarity laws in gas discharge, and a measurement system containing ICCD, light filter, digital control circuit and PDP drive circuit has been set up.Using this measurement system, the discharge process in the ACCPDP and matrix structure is investigated, and the distribution of the spectrum of infrared and spectrum of 640nm is observed. The results accord with those published in the world. We also observed the address discharge in macro ACCPDP cell, and measured the influences of various Vx, the results proved the validity of the simulation result in chapter 3. In this thesis, the discharge process in macro and real SMPDP cell are shown first time and the asymmetry of discharge in SMPDP cell is demonstrated and proved.The structure parameters such as the distance between electrodes, electrode width, dielectric layer thickness and the shape of electrodes can be changed conveniently in macro cell. The influence of those factors on discharge efficiency has been investigated and the suggestion to improve the efficiency is submitted.