Abstract
To achieve a high luminous efficacy in a plasma display panel, the display characteristics, including the luminance, discharge current, and luminous efficacy, were investigated with various coplanar gaps. The temporal behavior of the infrared emission from 80-, 150-, 200-, and 300-/spl mu/m coplanar gap discharges was also studied. The luminance and luminous efficacy increased as the coplanar gap increased until 200 /spl mu/m. However, when the coplanar gap was 300 /spl mu/m with a fixed barrier rib height of 150 /spl mu/m, the luminous and luminous efficacy suddenly decreased. This phenomenon can be explained by the results of the infrared emission observation, as the discharge shape of the 300-/spl mu/m coplanar gap became narrow when the height of barrier rib was fixed at 150 /spl mu/m. The luminous efficacy of the 200-/spl mu/m coplanar gap discharge was about 3.2 lm/W (green cells) when an Ne+4%Xe gas mixture was used as the discharge gas in the alternating current plasma display panel.
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