A 4.7-inch-Diagonal TFEL Display with SrS : Ce, Eu White Light Emitting Phosphor Layer

Abstract

This paper discusses a newly developed 4 7-inch diagonal white light emitting TFEL display panel with 320×240 dots and a SrS Ce, Eu phosphor layer Luminance of 520cd/m² and luminous efficiency of 025 lm/W at V_th+60V were obtained using a 1-kHz pulse drive, with V_th being the threshold voltage The estimated response time is 30 ms, which is almost the same as that of a ZnS : Mn TFEL device Therefore, this response time is fast enough for matrix display application Multi color display encompassing eight colors is possible by combining this device with color filters.