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Cambridge Display Technology Receives LEP Grant

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CAMBRIDGE, England, March 20 -- Cambridge Display Technology (CDT) announced it was awarded a grant from the UK Department of Trade and Industry for a collaborative project with the National Physical Laboratory (NPL) and Sheffield University. The project, Light Emission from Active Polymers (LEAP), is intended to increase the amount of light generated by a light-emitting polymer (LEP) display device that is coupled out through the front surface of the device.

The project partners will first model the effects of different structures, such as microcavities, aerogels and nanoscale lateral patterning, that modify the emission modes of LEP devices. Structures will then be fabricated within the display devices using the results from the initial modeling work.

"The amount of light trapped in current LEP devices is very significant," said Karl Heeks, CDT's director of business development. "The challenge is to improve the performance of these displays by capturing the 'lost light' that is trapped at interfaces within the display and is internally absorbed or emerges at the edges. To be useful, this must not be accompanied by any reduction in the visibility or color balance of the display."

Heeks said any success in this area will further improve display efficiency and result in lower power consumption and increased lifetimes for OLED displays.

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Mar 2003
ConsumerNews & Features

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