65.4: Improvement in Luminous Efficacy of Ultra‐Fine Discharge Cells for 50‐in. Full‐HD Plasma TV

In order to develop ultra-fine discharge cells with high luminous efficacy, several efforts have been made. We designed cell structures for the image element pitch of 0.58 mm. Both HEXA and MARI structures were considered. As for luminous efficacy, in constructing a 50-inch full HD PDP, we set a challenging goal to 2.0 lm/W. We believe high speed sustaining in high Xe content can help, because this is not restricted to small cell area. In addition, we developed ultra fine barrier fabrication method using sandblasting with 30 μm in width. This may contribute to improve efficacy further by enlarging discharge space.