Stable, Efficient, Large Area WOLED (Phase I)

Investigating Organization
Universal Display Corporation

Principal Investigator(s)
Brian W. D'Andrade

Subcontractor
None

Funding Source
Small Business Innovation R&D, Phase I

Award
DOE Share: $100,000

Contract Period
6/20/07 - 3/19/08

Universal Display Corporation (UDC) proposes to increase the lifetime of large-area (25 cm²) phosphorescent white OLEDs (WOLEDs) by improving the currect distribution throughout the active area of the WOLED.  The target is to ensure less than 30% change in luminance across the OLED active region, and a lifetime of >1,000hrs from an initial total flux of 8 lm, which corresponds to an average luminance of 1,000 cd/m2. The reduction of voltage losses across large area WOLEDs will enable these devices to both achieve long lifetimes and improved efficacies similar to small area WOLEDs.

Content dated 2/08