22-09-2012, 10:23 AM
OLED thin-film encapsulation technology key to new applications
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June 29, 2012 -- OLED thin film encapsulation technology is the one of technologies emerging as the core technology of flexible OLED, and technology development and patent securing competition between world’s leading OLED companies such as VITEX, 3M, GE, UDC, Samsung, LG, Philips, and DuPont will increase accordingly, shows Displaybank’s report, “OLED Thin Film Encapsulation
Technology Key Patent Analysis.”
Encapsulation protects organic light emitting diodes (OLEDs) from the external environment. Methods include CAN, glass, thin film, and hybrid encapsulation technology. Of these, thin film encapsulation is expected to be the enabling factor for lightweight and thin large-area OLED as well as flexible OLED. These architectures will support next-generation displays and OLED lighting.
OLED thin-film encapsulation patents are growing in line with increasing interest in flexible OLED and OLED lighting technology and the acceleration of technology development competition.
The report examines worldwide patent application trends, particularly from Korea, Japan, the US, and Europe. In addition, in-depth analysis such as key patent status of major companies, technology development, citation relation analysis, key patent point analysis, and key patent example analysis were performed by extracting 135 key patents around U.S. patents.
OLED adoption means shifting reqs for OLED materials
June 18, 2012 -- Organic light-emitting diodes (OLEDs) are breaking through in displays and lighting applications in the past 18 months, after a long run as a potential technology, reports NanoMarkets. OLED materials must meet growing requirements as OLEDs hit the market, allowing OLED materials suppliers to break out of their niche, specialty status in the next few years.
Samsung's Galaxy smartphone products with OLED displays outshipped Apple’s iPhones in Q1 2012, notes NanoMarkets. LG and Samsung have launched OLED TVs, hitting stores in 2012, with more to follow.
OLED-based lighting is also already on the market, although almost entirely in the form of low-volume, luxury lighting. The industry is working toward larger panels for general and architectural illumination -- higher-volume, price-sensitive applications.
As the addressable market for OLEDs grows, so it does for OLED materials. The number of modules is increasing, and OLED module average sizes are getting steadily larger. Add to this trend a shift in the relative importance of different applications as OLED is adopted, and substrates, transparent conductors, organic semiconductors, emissive materials, and encapsulation technologies will need to be rapidly tailored for different needs.
For example, OLED materials suppliers are developing longer-lifetime blue emitters that will strongly benefit the display sector, while quality white emission schemes are needed for OLED lighting applications.
Universal Display intros novel emission layer systems for OLEDs
"Our ongoing innovations in new materials and technology have allowed us to expand our product line-up that include new high-performance emissive layer systems for red, green, and yellow,” said Steven V. Abramson, president and CEO, Universal Display. “These next-generation systems contain our proprietary, highly efficient UniversalPHOLED emitter materials as well as novel host systems. These host systems combine our proprietary, cost-effective host materials with host materials from partner companies.”
Universal Display’s phosphorescent OLED technology and materials have demonstrated a four-to-one power advantage over other OLED technologies, resulting in record energy-efficient OLEDs. The new red UniversalPHOLED system, with CIE color coordinates of (0.66, 0.34), offers a luminous efficiency of 29 candelas per ampere (cd/A) with an operating lifetime of 600,000 hours (to 50% of initial luminance). The new green UniversalPHOLED system with CIE coordinates of (0.31, 0.63) offers 85 cd/A and an operating lifetime of 400,000 hours. The yellow system with CIE coordinates of (0.44, 0.54) offers 81 cd/A and 1,450,000 hours of operating lifetime.