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Red Phosphorescent OLED Devices
Nic Rossmüller : August 23th 2006 - 12:59 CET
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NovaledRed Phosphorescent OLED Devices : Universal Display Corporation and Novaled AG today presented a joint scientific paper at the International Society of Optical Engineering Optics and Photonics 2006 conference in San Diego, CA. The presentation detailed the achievement of a saturated red Pholed phosphorescent OLED device with a luminous efficacy of 15 candelas per ampere and an operating voltage of less than 4 Volts for a record power efficiency of 12 lumens per Watt all at 1,000 candelas per square meter brightness. This milestone was achieved of Universal Display's high-efficiency Pholed phosphorescent OLED technology and materials with Novaled's low-voltage conductivity doped Novaled PIN-OLED technology and transport materials.
Red Phosphorescent OLED DevicesNovaled Red Phosphorescent OLED
Universal Display's proprietary Pholed technology offers up to 100% internal quantum efficiency that is as much as four times higher than conventional OLED technology. Over the past few years, the Company has announced a series of record-breaking performance milestones for its red, green and blue Pholed systems. Novaled's proprietary doping technology and materials offer very low voltage OLEDs that are up to three times lower than conventional OLED technology. Over the past two years, the company has announced a series of record breaking performances. Novaled has successfully shown that very low device voltages can be combined with long operational lifetimes.

OLED Devices - Power efficient
Both parties' technologies combined can deliver excellent power efficiency based on the combination of high internal quantum efficiency and low operating voltage. The results of this collaborative work between Universal Display and Novaled was presented by Dr. Tobias Canzler, of Novaled, in a paper entitled, "Highly power efficient organic light-emitting devices enabled by phosphorescence and p-i-n technologies," at the SPIE Conference in San Diego, CA on Wednesday, August 16th.

Universal Display's Pholed - Red Phosphorescent OLED
The red PIN Pholed device with color coordinates of CIE (0.65, 0.35) has a peak external quantum efficiency of 16% and a drive voltage of less than 4 V at 1,000 cd/m2. The device also demonstrates excellent projected operational lifetimes of >150,000 hours at an initial luminance of 500 cd/m2, with a luminous efficacy exceeding 15 cd/A. The record-setting 12 lm/W power efficiency (at 1,000 cd/m2) is a result of Universal Display's Pholed high luminous efficiency and the low drive voltage of Novaled's doped transport materials.

Red Phosphorescent OLED Devices

About Universal Display Corporation
Universal Display Corporation is a world leader in developing and commercializing innovative OLED technologies and materials for use in the electronic flat panel display, lighting and other opto-electronic markets. Universal Display is working with a network of world-class organizations including Princeton University, the University of Southern California, and PPG Industries. The Company has also established more than 20 development programs and other similar relationships with companies such as Tohoku Pioneer Corporation; Samsung SDI Co.; AU Optronics Corporation; DuPont Displays, Inc.; Seiko Epson Corporation; Sony Corporation; and Toyota Industries Corporation. The Company has also licensed its OVPD technology to AIXTRON AG for the development of next-generation OLED manufacturing equipment. Universal Display currently owns or has exclusive or sole rights in approximately 725 issued and patents worldwide.

About Novaled
Novaled is engaged in the research, development and marketing of organic light-emitting diode (OLED) technologies. Starting operations in March 2003 Novaled experienced a rapid growth in developing and commercializing its proprietary technology maturing into a world-class technology provider. The company markets its advanced Novaled PIN OLEDTM technology together with its proprietary OLED materials to display makers and lighting companies preparing their entry into this promising new field. Novaled set up an industrial cooperation with Ciba Specialty Chemicals which produce the unique organic dopant and transport materials developed by Novaled. Novaled has a strong IP position manifesting in more than 220 patents granted and filed. With its legal form change, Novaled transformed into a stock corporation (AG), located in Dresden, Saxony.

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