Sep 8 2006
Cambridge Display Technology (CDT) and Sumation(R) -- its joint venture partner with Sumitomo Chemical -- announce rapid progress in the development of longer lifetime blue light emitting polymers suitable for full color, video capable P-OLED displays.
The latest data show a lifetime(1) of 20,000 hours from an initial luminance of 400cd/m2, equivalent to over 320,000 hours from 100cd/m2. This represents a three-fold improvement over the lifetime announced a year ago, and demonstrates the fruits of the collaboration by the development teams and the strong focus on this area. It is believed that there is great potential to make further dramatic improvements.
The efficiency of the latest blue material is approximately 9cd/A, and the color co-ordinates are: (CIEx=0.14, y=0.21). Color depth is important as materials with deep colors are required for the design of rich, full color displays.
"Once again I am pleased to be able to announce an improved set of development results," commented CDT's CEO Dr David Fyfe. "The importance of a strong performance from blue polymers is well known in our industry for its implications for color display applications. The teams in the UK and Japan have worked together effectively to secure this progress.
Recent efforts have been directed strongly towards improvements in blue, but the impressive progress achieved means we now need to have a dual focus on green and blue. Our best hopes for the synergistic impact of the Sumation joint venture are being realized."