Advanced Materials for Printed OLED Displays

摘要

This paper outlines the device and materials analyses which have led to DuPont's Gen3 solution-based OLED material set. A combination of architectural optimization and chemical design based on electronic analyses and calculations for these materials leads to dramatic performance gains for printable devices. High-efficiency deep red (0,68,0.32) devices deliver >200,000hr (1000nits) at >14cd/A while green materials demonstrate record lifetime >1,000,000hr, or high efficiency (>68cd/A) in solution-processed test-coupons. Deep blue, orange, and yellow emissive systems (the latter pair being useful for lighting applications) likewise exhibit world-class performance. Furthermore, use of these materials in nozzle-printed test coupons has verified that the outstanding performance can be maintained under actual print conditions. These proprietary materials now match or exceed the device performance of today's vapor-deposited equivalents, while enabling lower-cost printed displays and solution coated lighting applications.