Plextronics rolls out next-gen OLED ink, promises bigger, better OLED displays

A bottle of ink may not exactly seem like the key to bigger, better, and cheaper OLED displays, but that's just what Plextronics is promising will result from its new "next generation" Plexcore OC NQ ink. That's particularly notable because it's a non-aqueous, inkjet-printable ink, and is intended specifically for use with so-called solution-processed, phosphorescent OLED technology (as opposed to the vapor processing now commonly used), which at least some folks are betting on as the next big thing for OLED manufacturing -- recent tests have also shown significant advances for the technology, including a lower operating voltage and boost in lifetime over previously tested systems. What's more, while it's still in the testing phase now, Plextronics says it expects the ink to be broadly available to manufacturers sometime next year, which should mean that actual OLED displays using it will follow sometime thereafter.

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Plextronics Announces Availability of Next Generation OLED Ink: Early Sampling at Universal Display Corporation Shows Boost in Lifetime and Lower Operating Voltage

PITTSBURGH, Nov. 3, 2010 /PRNewswire/ -- Plextronics announced today that its Plexcore® OC NQ ink is now available for limited sampling, with more broad availability expected in 2011. The non-aqueous-based Hole Injection Layer (HIL) ink augments the company's existing aqueous-based HIL, and is geared specifically for solution processible phosphorescent OLED emitters. The company also expects to introduce ink-jet (printable) inks for limited sampling early in 2011.

Mary Boone, Director of Ink Business Development at Plextronics, said, "The ability to solution process OLEDs, especially displays, is a fundamental hurdle that the industry needs to overcome in order to more broadly commercialize OLED technology. The technology has advanced to the point where we are getting that much closer to fully solution-processed OLED devices, and new materials such as our non-aqueous HIL are a key requirement in the transition from vapor to solution processing."

Boone added, "Plextronics prides itself on its platform approach to our product offerings. We offer both aqueous and non-aqueous inks so that customers can select the exact material that they need. Plextronics is the only company that is currently offering a full line of OLED HIL inks for a variety of solution emitters."

Results at UDC

Early sampling of Plexcore® OC NQ assisted Universal Display Corporation to achieve low voltage and long lifetime in recent performance testing of their P2OLED™ solution-processed, phosphorescent OLED technology.

On October 13, Universal Display issued a press release announcing significant advances in the performance of its UniversalP2OLED™ solution-processible, phosphorescent OLED material systems. Plextronics was the HIL provider, and its Plexcore® OC NQ ink helped UDC to achieve a lower operating voltage and a boost in lifetime over previously disclosed results.

The UDC results were announced by Dr. Kwang Ohk Cheon, Senior Research Scientist at Universal Display, during the 10th International Meeting on Information Display (IMID 2010), from October 11 to 15 in Korea.

During his talk, Dr. Cheon reported on a new green P2OLED system with 66 candelas per Ampere (cd/A) and 130,000 hours of operating lifetime to 50% 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.

About Plextronics, Inc.

Plextronics, Inc. is an international technology company that specializes in printed solar, lighting, display and other organic electronics. Headquartered in Pittsburgh, PA, the company's focus is on organic light emitting diodes (OLED) and organic solar technology, specifically the conductive inks and process technologies that enable those and other similar applications.

The privately held company was founded in 2002 as a spinout from Carnegie Mellon University, based upon conductive polymer technology developed by Dr. Richard McCullough. Over the past eight years, Plextronics scientists have refined and further developed this technology to deliver exceptional performance for printed electronics. In January 2010 the company earned ISO 9001:2008 certification of its quality management processes.

For more information about Plextronics, visit

SOURCE Plextronics, Inc.