CDT announces two major P-OLED development milestones
Cambridge Display Technology (CDT) announces two major milestones in the development of long lifetime, high efficiency light emitting polymers for full color, video capable displays.
A phosphorescent red device has been produced by CDT and Sumitomo Chemical which has a lifetime of half a million hours from an initial luminance of 100cd/m(2); this is a record for lifetime of solution-processable materials of any color. The efficiency is also improved at over 7cd/A. Red efficiency is especially important as this color consumes the largest share of power input in a color device, so improvements in red efficiency have important practical implications.
Sumation Joint Venture Completed
Cambridge Display Technology (CDT) and Sumitomo Chemical have confirmed that their Joint Venture company, Sumation, commenced trading on November 14th 2005.
Sumation supplies polymers and formulated inks for use in both development and commercial P-OLED display and lighting applications. The company is headquartered in Tokyo, and has an R & D team located in both the UK and Japan, while production of polymer materials will take place under sub contract at the Sumitomo Chemical plant in Osaka.
CDT doubles dendrimer OLED lifetime, forms JV with Sumitomo
CDT announced a red dendrimer OLED device with a 250,000-hour lifetime from an initial luminance of 100cd/m2, compared to the 150,000 hour-lifetime device announced this May and 15,000 hour lifetime in 2004. The company also said it will ally with Sumitomo Chemical for PLED material supply.
Lifetimes for devices using dendrimer technology using the new red materials at 400cd/m², 800cd/m2 and 1000cd/m² are estimated at 15,600 hours, 3,900 hours and 2,500 hours respectively.
Joint Venture Announced In Polymer OLED Material Supply
Cambridge Display Technology and Sumitomo Chemical have announced the signing of a memorandum of understanding to form a new joint venture company to develop and supply advanced polymer OLED materials and formulated inks for use in commercial P-OLED display and lighting applications.
The new company, to be based in Tokyo, Japan, will be owned equally by the two parent companies, and will have the largest concentration of PLED material development expertise and intellectual property (IP) in the OLED industry.
Sumitomo Chemical to Acquire Lumation LEPs from Dow
Sumitomo Chemical and The Dow Chemical Company announced today that Sumitomo Chemical has purchased the LUMATION Light-Emitting Polymers (LEPs) business from Dow. Financial terms were not disclosed. Sumitomo Chemical's acquisition of LUMATION LEPs will strengthen the company's LEP technology-based business, in line with its strategy.
Sumitomo Chemical has developed fluorescent and phosphorescent LEPs based on the company's long-established display material and conducting polymer technology. Sumitomo Chemical's blue-color material achieved 10,000 hours of brightness half-life. The material is ideal for a printing method, a much simpler and more cost effective production process for large-sized displays than the vacuum deposition method used for small-molecular OLEDs. The company is also developing highly efficient new materials such as dendrimers in cooperation with Cambridge Display Technology.
