Research Highlights: Scalable Printing Process for OLEDs from the University of Michigan

Oct 12, 2011 Dan Rogers from Plastic Electronics reports on the exciting research led by OLED expert Stephen Forrest, vice president for research at the University of Michigan's materials science and engineering department. The research group has developed a printing process for depositing OLED materials.

According to the report the Organic Vapour Jet Deposition process could simplify the manufacturing of OLEDs for displays and lighting, which could also reduce costs.

The scalable process could pattern a 60-inch OLED television display in 25 seconds, according to Forrest. The quality of the patterned display is also better than needed for current applications, he adds. Mr. Rogers summarizes  the presentation given by Stephen  and notes that the resolution possible with the new device can be  1-1.5µ patterning for a display, and would satisfy even micro display requirements.

The research team is speaking to a number of companies and working on commercialising the device.

Organic Vapour Jet Deposition print heads consist of a nozzle plate that receives the red, green and blue materials through gas flow vents. The 200µ x 20µ nozzle array then deposits the materials on a substrate, which can be passed in front of it in a roll-to-roll process. Forrest says of its scalability: 'Arrays of 3,000 nozzles would be feasible.

Mr. Forrest presented the research at the Plastic Electronics 2011 event taking place October 11-13 in Dresden, Germany.

For full report please refer to:

Author:  Alice Jones

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