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UDC Advances Tech for Wet Deposition

Photonics.com
Nov 2010
EWING, N.J., Nov. 8, 2010 — Universal Display Corp. announced significant advances in the performance of its UniversalP2OLED solution-processible, phosphorescent OLED material systems for use with solution-based manufacturing processes. Display and lighting manufacturers are evaluating solution-based manufacturing techniques as an additional path for the cost-effective production of large-area OLED displays and lighting devices.

These developments were announced during the 10th International Meeting on Information Display (IMID 2010) in Oct. at the Kintex in Ilsan, Gyeonggi, Korea.

Dr. Kwang Ohk Cheon, senior research scientist at Universal Display, reported that the performance of Universal Display’s solution-processible P2OLED technology and materials have advanced significantly through the continued development of enhanced materials and device structures using its proprietary solution-processed, small-molecular emitter systems. These systems are now approaching the performance of PHOLEDs made by vacuum-evaporated techniques.

During his talk, Cheon reported on a new green system with 66 candelas per Ampere (cd/A) and 130,000 hours of operating lifetime to 50 percent of an initial luminance of 1000 nits - representing approximately a two times improvement in luminous efficiency and lifetime over Universal Display’s results reported a year ago. In addition, the company’s red P2OLED system now offers 15 cd/A and 62,000 hours, and its light blue P2OLED offers 18 cd/A and 5,000 hours. These results are achieved without using any burn-in or pre-aging methods.

Through the development of optimized ink formulations, the company has also demonstrated ink-jet printed P2OLED devices with comparable performance to devices made by spin-coating. While spin coating is a technique generally only used for research purposes, ink-jet printing is one of the leading solution-processing candidates for use in large-area manufacturing settings.

“The recent performance advances of our solution-processed, phosphorescent OLED material systems, achieved by our Universal Display team, represent significant progress over the past year,” said Steven V. Abramson, president and CEO of Universal Display. “Universal Display’s highly energy-efficient PHOLED technology and materials are already considered to be critical to the manufacture of OLED displays and lighting produced by vacuum-based manufacturing processes today. These recent P2OLED results move us a major step closer to enabling the industry to produce energy-efficient OLED displays and lighting devices on larger-area manufacturing platforms by cost-effective, solution-processing manufacturing methods.”

For more information, visit:  www.universaldisplay.com 




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