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Universal Presents Active-Matrix OLED at SID

Photonics.com
May 2010
EWING, N.J., May 27, 2010 — Universal Display Corp., enabling energy-efficient displays and lighting with its UniversalPHOLED technology and materials, has announced an all-phosphorescent active-matrix organic light-emitting diode (AMOLED) display architecture with a four-color subpixel design. The new format adds a light blue subpixel to the conventional red, green, blue (RGB) configuration, extending the operational lifetime of an organic LED (OLED) display and reducing the display’s power consumption by as much as 33 percent, as compared with an RGB OLED display using a fluorescent blue subpixel.


Conventional RGB subpixel format (left) versus RGB1-B2 four-subpixel design (right). (Image: Universal Display)


Dr. Woo-Young So, a research scientist at Universal Display, presented the design yesterday at the 2010 Society for Information Display (SID) International Symposium, Seminar & Exhibition in Seattle in a paper titled, “Power Efficient AMOLED Display with Novel Four Sub-Pixel Architecture and Driving Scheme.” The conference is being held through May 28.

Universal Display’s design relies on the more energy-efficient, longer-lived light blue subpixel to satisfy a significant portion of the blue-emission requirement and lessen the stress on the deep blue subpixel.

To illustrate the pixel architecture, the company, in collaboration with professor Jin Jang of Kyung Hee University and Samsung Mobile Display, both in Seoul, South Korea, demonstrated the four-subpixel architecture in a 63.5-mm (2.5 in.), all-phosphorescent AMOLED display.

“Our team has demonstrated a very innovative display pixel architecture to leverage the power efficiency advantage of phosphorescence,” said Steven V. Abramson, president of Universal Display. “This has the potential to accelerate and expand the commercialization of all-phosphorescent OLED displays to meet increasing consumer demand for displays with low power consumption and enhanced performance.”

The company’s proprietary phosphorescent OLED (PHOLED) technology and materials can be found in a variety of cell phones, multimedia players and other display devices already on the market.

For more information, visit:  www.universaldisplay.com  




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