New-shaped electrode for AC-PDP for enhancement of luminous efficiency in AC-PDP

Summary form only given, as follows. AC-plasma display panel (AC-PDP) is using gas discharge display device which has great potential as a flat display with large display area and high brightness. Because of their high picture quality, light weight, and large screen size, these are now attracting considerable attention in digital broadcasting for use in suitable TV monitors. However, the present-day PDP with a luminous efficiency of typically about 1.0 lm/w is low in comparison with a CRT (5 lm/w) and limits the brightness. Improvement of the luminous efficiency is, therefore, a key factor to obtain a better panel performance. In this research, in order to increase the luminous efficiency of PDP, three new types of AC-PDP cells have been proposed and investigated. New-shaped types of electrodes were developed for high luminance coplanar type AC-PDP. The new-shaped type electrodes had been 3 types in one cell, A, B, and conventional type, respectively. The new-shaped type electrodes that have been developed have a lower breakdown voltage than the conventional type electrode at normal pressure. Also, the luminance efficiency is improved by about 20% at the same firing voltage. This result means that the currents are limited by characteristics of the new-type electrode.