抄録
We developed a high-quality picture technology for PDPs with the DelTA (Delta Tri-color Arrangement) cell structure. A 42-inch PDP with the DelTA cell structure was found to have disordering in the display of horizontal lines. Using subjective evaluations, we demonstrated that picture quality can be improved by using a low pass filter, which reduces disordering without decreasing picture sharpness. To increase the vertical resolution, we developed the double density scan (DDS) processing technique. Using the DDS technique, we achieved a vertical resolution of over 700 TV lines on a 480-line DelTA-PDP. Comparing the vertical MTF characteristics of a 512-line DelTA-PDP with those of a 768-line square-cell PDP, and considering the effect of the format conversion, we demonstrated that a 512-line DelTA-PDP can be expressed to areas of higher spatial frequencies.
