Abstract— To improve PDP performance, we developed an AC‐PDP with the Delta Tri‐Color Arrangement (DelTA) cell structure and arc‐shaped electrodes. The experimental panel has a pixel pitch of 1.08 mm and luminous efficacy of 3 lm/W at a luminance of 200 cd/m2 despite its conventional gas mixture of Ne and Xe (4%) and conventional phosphor set. Moreover, its peak luminance can be greater than 1000 cd/m2. The strong dependence of luminous efficacy on the sustain voltage is also discussed in this paper.

The time lag of address discharges is discussed in terms of its relation with discharge gas composition. We measured the discharge time lag in ACPDPs with Ne‐Xe‐He mixed gases. As the concentration of helium increases, the address discharge time lag becomes shortened because helium atoms reduce mostly the formative time lag of the discharge. The formative time lag depends on the ion drift velocity at the initial stage of discharge formation. This ion drift velocity becomes lager with higher helium atom concentration.

To improve the performance of PDPs, we developed an AC-PDP with the Delta Tri-color Arrangement (DelTA) cell structure and arc-shaped electrodes. The experimental panel has a pixel pitch of 1.08 mm and luminous efficiency of 3 lm/W at a luminance of 200 cd/m 2 . Moreover, its peak luminance can be greater than 1000 cd/m 2 .

We developed the world's smallest 32-inch HDTV PDP. By improving the luminous efficiency, a luminance of 650 cd/m 2 and power consumption (discharge and driving circuit) of 200 W or less was achieved. Moreover, incorporating an Advanced Color Compensating (ACC) filter improved the PDP's color reproduction capability, better than that of CRTs.