EL Display Printed on Curved Surface

Abstract

This paper presents the electro-luminescence (EL) display lamp which is patterned on a curved surface by the pad printing method. The EL display lamp consists of 5 layers: Bottom electrode; Dielectric layer; Phosphor; Transparent electrode; Bus electrode. For proper pad printing, the ink of each layer was formulated and the pad printing condition was controlled. A PEN film was used first in order to realize the pad printing process condition of each layer. Finally, the EL display lamp was printed on a dish, which has a radius of curvature 80mm.