Optical properties of distributed inorganic EL devices with multi-stripe electrode

Abstract

In this study, we fabricated distributed inorganic EL device of conventional structure by using multi-stripe Al electrode. We deposited stripe electrode with narrow gaps on a glass substrate and succeeded in achieving the same electric field intensity as conventional structure. When we measured the luminescence from the side of the stripe electrodes, at 150V (frequency : 1.8 kHz), the luminance of electrode sample was 323 cd/m2 to that measured. Electrode transmittance was unnecessary by using the stripe electrodes, and it was possible to produce a display that did not require transparent ITO electrodes. Finally, we simulated the electric field distribution for the inorganic EL using stripe electrodes by semiconductor device simulator Atlas.