Application of thin film electroluminescent devices

Abstract The main application for electroluminescent devices is considered to be in alphanumeric readout devices with several hundred to several tens of thousand picture elements. The use of high-field electroluminescence in less complex application fields like domestic appliances or vehicle dashboards may also attain considerable commercial importance in the future. In this paper, however, specifications for matrix addressed alphanumeric readouts are given and compared to the features of efficient electroluminescent layer structures. It is concluded that the present a.c. addressed thin films with high contrast and good lifetime data are well suited for application as electro-optic transducers for flat, solid state, medium-sized displays.