The enhancement of the BRCR (Bright Room Contrast Ratio) in a plasma display panel

Luminous efficiency and Bright Room Contrast Ratio (BRCR) are critical issues in a plasma display panel. In the conventional PDP panel structure, an optical filter is used to reduce the reflected luminance and to increase the BRCR. However, this optical filter reduces the peak luminance also, resulting in a decrease in the luminous efficiency. In this study, a new electrode structure with the enlarged black stripe and the auxiliary electrode between the bus and ITO electrode was proposed to investigate the possibility of getting higher BRCR without an optical filter. The experimental results using 3 in. test panels in this study showed that the BRCR of the new structure was enhanced to more than twice of that of the conventional one without any loss of the luminous efficiency.