OLED materials progress at Universal Display advances print/deposition fab method

April 26, 2011 – BUSINESS WIRE — Universal Display Corporation (NASDAQ: PANL), enabling energy-efficient displays and lighting with its UniversalPHOLED technology and materials, announced advances in the performance of its UniversalP2OLED solution-processible, phosphorescent OLED material systems for use with solution-based manufacturing processes (such as ink-jet printing).

OLED manufacturers are evaluating manufacturing techniques, like ink-jet printing, as additional paths for the cost-effective production of large-area OLED displays and lighting panels. These developments were announced at the International Display Manufacturing Conference (IDMC 2011), held April 18-21, 2011 at the Taipei International Convention Center in Taipei, Taiwan.

Dr. Kwang Ohk Cheon, senior research scientist at Universal Display, reported in a paper titled "Progress in Solution Processible Phosphorescent Organic Light Emitting Devices (P2OLED)" that Universal Display has further enhanced the performance of its UniversalP2OLED red, green and light blue materials systems, as follows:

  • The green P2OLED system, which offers a luminous efficiency of 68 candelas per Ampere (cd/A), has now achieved 175,000 hours of operating lifetime. This represents approximately a 1.3 times improvement in lifetime over results reported last fall.
  • The red P2OLED system, with a luminous efficiency of 18 cd/A, now offers an operating lifetime of 125,000 hours for a two-times improvement in lifetime.
  • The light blue P2OLED system now offers a luminous efficiency of 29 cd/A and 8,000 hours of operating lifetime for a 1.6 times improvement in luminous efficiency and lifetime.
  • Operating voltage reductions were also achieved.

"Commercial viability is now in sight. Solution-based manufacturing techniques could become a cost-effective and attractive option for the production of OLED devices, especially at large sizes," said Steven V. Abramson, president and CEO of Universal Display. Improvements in materials, device design and fabrication techniques drive P2OLED performance closer to the levels currently obtained using vacuum-based manufacturing today. The operating lifetime data is reported as the time to 50% of the initial luminance of 1,000 nits without burn-in.

Small-area OLED displays, manufactured using conventional vacuum thermal evaporation, have already entered the mainstream consumer market in display applications for smartphones and multi-media players. Display and lighting manufacturers are evaluating other techniques for the manufacture of large-area OLEDs in an effort to further drive down costs for OLED TV panel and lighting panel production. Solution-processible techniques, such as ink jet printing, are candidates for the efficient and low-cost manufacturing of large-area OLEDs.

Universal Display Corporation (Nasdaq: PANL) is a leader in developing and delivering state-of-the-art, organic light emitting device (OLED) technologies, materials and services to the display and lighting industries. To learn more about Universal Display, please visit www.universaldisplay.com.

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