Universal Display Corporation, inventor of the UniversalPHOLED™ phosphorescent OLED technology, today announced that the company’s Chief Technical Officer Dr. Julie Brown presented at FINETECH JAPAN’s first ever LED/OLED Lighting Technology Exposition which is held in Tokyo, Japan from April 15 – 17.

The expo sponsored by the Japan Luminaires Association and the Japan Electric Lamp Manufacturers Association, brings together innovators, manufacturers and designers in the LED/OLED lighting industries to showcase equipment, components and materials, as well as recent advances in LED/OLED lighting technologies. Presenters and exhibitors include companies from Japan, the United States, Germany, South Korea, Taiwan and China, among others.

The presentation titled “Pushing the Envelope for White OLED Efficiency” focused on white phosphorescent OLEDs (PHOLEDs) as an environmentally-friendly, energy-saving lighting technology. Dr. Brown reported data for a series of white PHOLEDs designed to satisfy the requirements of differing lighting applications. These research results range from warm to cool white with varied power efficacies of 54 to 102 lumens per watt (lm/W). Depending on the specific designs employed, the color rendering indices (CRI’s) varied from 70 to 88, and lifetimes varied from 4,000 to 17,000 hours (to 70% of initial luminance at 1,000 nits*).

White OLED performance characteristics can be tuned by manipulating the OLED materials and structures. To show this effect, a series of white OLEDs, from approximately 2,700 to 4,000 Kelvin, were developed that exceed the Energy Star Category A Color Specification of color rendering index (CRI) of > 75 and the Efficiency Specification of > 35 lm/W. The lifetime specification in Energy Star is ≥ 25,000 hours, however, the lifetime results for this series may be sufficient for a variety of niche products while the Company continues to develop white OLEDs that meet the requirements for more demanding applications.

“The world is coming to the realization that solid-state OLED lighting can offer a meaningful eco-friendly and energy-saving lighting solution, and that our phosphorescent OLED technology is key to making this happen,” said Dr. Brown, “The recent advances we have made in efficiency, color and lifetime of our white PHOLEDs move us closer to meeting the U.S. Department of Energy’s solid-state lighting targets and the requirements of Energy Star, a joint specification between DOE and U.S. Environmental Protection Agency.”

About Universal Display Corporation
Based in New Jersey, U.S., Universal Display Corporation is a world leader in developing and commercializing innovative OLED technologies and materials for use in flat panel displays, solid-state lighting products, electronic communications and other opto-electronic devices. Universal Display is working with a network of world-class organizations, including Princeton University, the University of Southern California, the University of Michigan, and PPG Industries, Inc. Universal Display currently owns or has exclusive or sole license rights with respect to more than 940 issued and pending patents worldwide.