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Details of Grant 

EPSRC Reference: GR/R68276/01
Title: Patterning of PLED materials by laser for microdisplay manufacture
Principal Investigator: Lidzey, Professor D
Other Investigators:
Researcher Co-Investigators:
Project Partners:
Exitech Ltd MicroEmissive Displays Ltd
Department: Physics and Astronomy
Organisation: University of Sheffield
Scheme: LINK
Starts: 01 January 2002 Ends: 30 June 2004 Value (£): 150,344
EPSRC Research Topic Classifications:
Displays
EPSRC Industrial Sector Classifications:
Electronics
Related Grants:
Panel History:  
Summary on Grant Application Form
The proposal is a collaborative LINK project involving Sheffield University, MicroEmissive Displays Ltd (a company engaged in commercialising full-colour organic microdisplays) and Exitech Ltd (a laser machining company). The objective of this proposal is the development of a full-colour microdisplay based on electroluminescence from three different conjugated polymers, emitting either red, green or blue light The core of the proposal is based around the development of commercial excimer-laser machining technology to pattern thin films of conjugated polymers. We will develop a novel route to use laser ablation to pixellate a substrate with three different conjugated polymers allowing discreet emissive pixels to be created, each having a diameters of 10 micrometers. Our approach relies on photo-ablating protective resist layers, and then infilling the ablated regions with a conjugated polymer thin film via spin-coating. We propose to develop the patterning technology, and then to fabricate a prototype full-colour, high-density microdisplay, using CMOS circuitry to individually address each pixel within the display. The new technology that we will develop will eliminate the need for complex and low-yield chemical process steps, while at the same time producing a microdisplay product with significantly improved power efficiency and enhanced optical resolution.
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Organisation Website: http://www.shef.ac.uk