EETimes – OLEDs are finally living up to their long-promised potential and the next few years will present plenty of opportunities for organic light emitting diode materials suppliers to break out of their niche, specialty status according to a new report by market research firm NanoMarkets.
The growth of Samsung’s Galaxy smartphone products have exceeded iPhones in the first quarter of 2012. What’s more OLED TVs from both LG and Samsung are entering the market this summer and fall, and other manufacturers are likely to follow in the near term.
OLED TV street price for 55 in. sets are expected to be $8,000 when launched in Q3’12, according to Paul Semenza, Senior Vice President at DisplaySearch. At a Society for Information Display presentation Semenza remarked that “by 2014, if the 55 in. OLED TV price can be reduced to $2,500, it will be similar to current high end 55 in. LCD TV.
Nth Degree Technologies – OLED Mass Printing Process
At SID, Barry Young, Managing Director, of fhe OLED Association, in his presentation concurred that OLEDs are on a growth curve: “The number of OLEDs has increased from 75 million in 2009 to 100 million in 2011 and is projected to double again in 2012.”
Young also gave revenue figures. “The revenue grew from less than $1 billion in 2009 to more than $3.5 billion in 2011 and is projected to reach more than $8 billion in 2012.”
Mass Production Printing OLED
In this paper we present a new form of inorganic printed electronics (PE) that overcomes many of the problems associated with the act of printing electronics. The technique allows for very high speed, inexpensive production of PE products. To illustrate this approach we will describe a solid state lighting (SSL) device based upon a standard InGaN heteroepitaxy and fabricated as micro LEDs dispersed into an ink binder. We believe that this approach will act as a template for further development of inks and techniques that employ fabricated silicon or III-V semiconductors.
Economies of scale are possible with this approach.
Current device efficacy is about 20 L/W with LED die that are not yet fully optimized for extraction efficiency. We anticipate that this will improve to at least 50 L/W.
We have demonstrated that printing is a new inorganic electronics packaging technology. Axial lead micro devices can accurately and rapidly be printed yielding both very significant cost savings and new, lightweight, flexible form factors. Very large production gains, which yield economies of scale, are possible with this approach. As an example, printing at only 75 meters per minute with a single 60cm wide flexographic press for 20 hours per day for 300 days per year yields about 250,000,000 A-19 light bulb equivalents. Such A-19 bulb replacements should have a retail cost that is similar to existing CFL bulbs
OLED replacement for conventional bulb