Just two months after announcing a significant improvement in blue polymer lifetimes, Cambridge Display Technology (CDT) and Sumation announced another lifetime milestone for blue light emitting polymers.
Data from devices produced using these latest, solution processable, fluorescent materials show lifetime of 25,000 hours from an initial luminance of 400cd/m², equivalent to 400,000 hours from 100cd/m².
This represents a 25% improvement over the lifetime results announced in September.
Production of video capable OLED displays requires a full color range of red, green and blue with long lifetime and good efficiency. The efficiency of this fluorescent blue material is approximately 9cd/A, and the color co-ordinates are: (CIEx=0.14, y=0.21).