Analyzing and tuning emission characteristics of top-emitting organic light-emitting devices
Journal
Journal of the Society for Information Display
Journal Volume
13
Journal Issue
3
Pages
253-259
Date Issued
2004-03
Author(s)
Abstract
Top-emitting organic light-emitting devices (OLEDs) have several technical merits for application in active-matrix OLED displays. Generally, stronger microcavity effects inherent with top-emitting OLEDs, however, complicate the optimization of device efficiency and other viewing characteristics, such as color and viewing-angle characteristics. In this paper, using the rigorous classical electromagnetic model based on oscillating electric dipoles embedded in layered structures, the emission characteristics of top-emitting OLEDs as a function of device structures will be analyzed. From comprehensive analysis, trends in the dependence of ewmission characteristics on device structures were extracted, and, accordingly, a general methodology for optimizing viewing characteristics of top-emitting OLEDs for display applications will be suggested. The effectiveness of the analysis and the methodology was confirmed by experimental results. © Copyright 2005 Society for Information Display.
Subjects
Microcavity effects; Organic light-emitting devices; Top-emitting organic light-emitting devices
Other Subjects
Electromagnetic waves; Light emission; Microcavities; Organic light emitting diodes (OLED); Comprehensive analysis; Device efficiencies; Device structures; Display applications; Electric dipoles; Electromagnetic models; Emission characteristics; Layered structures; Microcavity effects; Oled displays; Optimizing; Organic light-emitting devices; Model structures
Type
journal article