Technical / Research - Page 65

The KIT Institute of Nanotechnology developed a new OLED optimization simulation software called SiMoNa. Using this software you can improve OLED material (EL, HTL and HIL) properties and design new dye molecules. KIT spun off a new company called NanoMatch that will develop SiMoNa further and will bring it to market.

According to KIT, this is the first time that one software combines structural prognosis of a material on a molecular basis with a quantum mechanics analysis of the resulting function. This leads to very fast simulation - they claim that it is faster than current simulation software by a factor of about a million. The system can predict the mobility of charge carriers by means of quantum mechanics calculations - also in unknown substance classes (for which experimental data are still lacking). Here's a video introducing SiMoNa and showing some nice OLED panels and concepts:

Engadget posted a short hands-on review on the new Nokia N9. They claim that the display uses Nokia's Clear Black Display (CBD) technology - although Nokia's own press release never mentioned that. CBD adds a special filter on top of the display which blocks light reflection - and helps the AMOLED perform better outdoors.

In any case, Engadget say that the AMOLED display "is truly a sight to behold, with stunning viewing angles, a curved Gorilla Glass front, and some pretty excellent (for AMOLED) performance out in the sunlight... It's easily one of this new phone's great strengths".

LEDON OLED lighting is showing a new OLED module that is the brightest ever at 1001 lumens. The new lamp (which is aimed towards professional lighting applications) uses 9 LG Chem OLED panels and LEDON's own outcoupling and electrical contact system. The color temperature is 4077K and the efficacy is over 30 lm/W. The total lamp size is 300x300² with a thickness of 5 mm. The average luminous flux area density is over 11,000 lumen/m².

We talked to LEDON and they say that they expect LG Chem to start producing their OLED lighting panels in 2012. Acuity Brands who are also using LG Chem's OLED panels say that they expect to start shipping lamps in Q1 2012. LG Chem announced their OLED lighting product plans back in 2009. Back then, LG Chem planned to use green and red PHOLED materials made by Universal Display, and SFC's deep-blue fluorescent OLED.

OSRAM announced it has developed a new white OLED panel that achieve record efficiency - 87 lm/W. The tested panel had a brightness of 1,000 cd/m² and a color temperature of about 4,000K. At 5,000 cd/m² brightness the panel offers almost 75 lm/W.

OSRAM used a pure thin-film approach. The current was distributed evenly over the active surface using a special injection electrode on the light-generating surface and offers homogeneous light density from every angle.

The US Department of Energy (DOE) announced the 7th round of SSL projects, totalling $15 million for OLED and LED lighting research, product development and production projects. One of the two production projects is headed by Moser Baer. The DOE will give $2.9 million (and Moser Baer will add $1 million) to reduce the cost of manufacturing OLED lighting panels. Moser Baer's pilot production line in Canandaigua, NY will be used to demonstrate these manufacturing improvements.

Prototype OLED lamps by UDC

Moser Baer's pilot production line is built together with Universal Display and uses UDC's PHOLED technology. The project was already awarded $8.3 million by the DOE back in January.

Yesterday we posted that TDK started to mass produce transparent PMOLEDs, and now we have some technical updates. It turns out that TDK is not using transparent cathodes and anodes: only the anode is transparent, while the cathode is still made of metal. What they did is reduce the line width of the cathode so only a part of the pixel is covered. TDK calls this panel structure "thin-line electrode structure".

This is how they achieved 40% transmittance. This also explains why viewing this display from the back side is impossible (it is not clear - although parts are showing). TDK claims this is good because users will not want other people to view their phone display from the other side.

Today we launched our first product - The OLED Handbook. This is a comprehensive guide to OLED technology, market and industry - encompassing all that we learned here at OLED-Info over the past 6 years. We are seeing a growing interest in OLEDs - from all over the world, and we believe that this guide can help introduce the subject quickly and throughly.

Reading this book, you'll learn all about:

• OLED technology and materials
• What kind of OLED displays are available today
• What is a Super AMOLED and a Clear Black display
• All about OLED lighting technology
• OLED lighting panels and lamps available today
• The future of OLED displays and lighting
• And lot's more!

The Korean Advanced Institute of Science (KAIST) says they have developed a new flexible display metal wiring technology. The researchers manufactured the metal wiring by inducing photochemical reaction using laser after self-generated 2-3nm silver nanoparticle photocatalytic from metal-atom melted organic matter. They team also developed a laser-guided pattern adhesive transfer - which is used to pattern solid-state materials from a polymer film to the target film (which is vulnerable to heat).

KAIST reports that the technology enabled ultra-fine silver metal wiring (less than 10?) on various material polymer films and the wiring features high conductivity and high reliability. In fact KAIST claims that the new method will enable cheaper manufacturing (about 1% compared to silver nanoparticle ink!) and the manufacturing speed was improved up to 100 times.

Samsung Mobile Display announced a new Joint Venture (50:50) with Japan's Ube Kosan to develop and produce polyimide resin - to be used as substrates for flexible displays (and other applications, too). The initial investment is 19.4 billion won ($18 million USD). The new polyimide material will be heat resistant even at high temperatures. The production facilities will be built in Samsung's industrial complex in Tangjeong, Korea.

Samsung have already demonstrated flexible OLED prototypes built on a polyimide substrate, back in November 2010. According to our information, Samsung plans to start producing flexible OLEDs in 2012 or 2013, and this is one of the first steps they announce towards that goal.

Sony is showing a new hybrid-printed OLED device. The red and green OLEDs are printed while the blue OLED is apparently vacuum deposited. The prototype on display is a full color 3", VGA (640x480) resolution (270 ppi).