CAMBRIDGE, England, Sept. 6 /PRNewswire-FirstCall/ -- Cambridge Display Technology (CDT) (NASDAQ:OLED) 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." About CDT Cambridge Display Technology is a pioneer in the development of polymer organic light emitting diodes (P-OLEDs) and their use in a wide range of electronic display products used for information management, communications and entertainment.
P-OLEDs are part of the family of OLEDs, which are thin, lightweight and power efficient devices that emit light when an electric current flows. P-OLEDs offer an enhanced visual experience and superior performance characteristics compared with other flat panel display technologies such as liquid crystal displays, and have the key advantage that they can be applied in solution using printing processes. Founded in 1992, the company is headquartered in Cambridge, UK and listed on the US NASDAQ National Market under the symbol 'OLED'. In 2005, CDT and Sumitomo Chemical established a joint venture called Sumation(R) which develops, manufactures and sells P-OLED materials to the display industry.
More information on CDT can be found at: http://www.cdtltd.co.uk/ (1) Note to editors: When 'lifetime' is discussed here, it refers to the
time taken for the display/pixel to fall to half its initial stated
luminance. Lifetime estimates are based on accelerated testing of
simple test devices at several very high initial luminance levels,
and use of these data to calculate predicted lifetimes at lower
brightness levels. Translation of this single pixel data into
performance in an RGB display system depends on a number of factors
and requires a complex calculation and knowledge of the precise
system design parameters such as aperture ratio, brightness, ink
formulation and relative pixel areas. DATASOURCE: Cambridge Display Technology CONTACT: Terry Nicklin, Marketing Director of CDT, +44-1954-713600, Web site: http://www.cdtltd.co.uk/
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