Solution based OLEDs - Page 14

Tokyo Electron (TEL) and Seiko Epson will jointly-develop OLED display manufacturing technology. This project will integrate Epson's inkjet printing method and TEL's production equipment. The aim is to create next-generation OLED manufacturing technologies as a total-solution-package.

Espon 14-inch Inkjet processed OLED

Back in 2009, we posted an interview with Satoru Miyashita, General Manager of Seiko Epson's Core Technology Development. Back then, Satoru estimated that by 2012 we'll see inkjet-printed OLED TVs.

We had the good chance to talk with Gerd Guenther, Novaled's Chief Marketing Officer. He was kind enough to answer a few of our questions, and give us some information and updates from Novaled.

Gerd, thanks for your time. Can you explain Novaled's business model to us?

When Novaled started as a spin-off from Fraunhofer and Technical University of Dresden in 2001 with just 3 people, the idea was to market its doping technology Novaled PIN OLED^®) along with its proprietary materials. Today, quite an impressive number of well known display and lighting makers are customers of Novaled. That means we offer IP, licensing and technology transfer packages but also R&D contracting as well as trainings.

Novaled 15x15 cm white OLED

Plextronics announced today that its Plexcore OC NQ ink is now available - for limited sampling. During 2011 Plextronics will accelerate production. The new non-aqueous-based Hole Injection Layer (HIL) ink is geared specifically for solution processible phosphorescent OLED emitters, and Plextronics expects to introduce ink-jet printable inks for limited sampling early in 2011.

Plextronics also say that UDC was using their OC NQ ink in their new P2OLED solution-processed phosphorescent OLED technology (reported on October 13). Plextronics was the HIL provider, and its OC NQ ink helped UDC to achieve a lower operating voltage and a boost in lifetime over previously disclosed results.

Universal Display announced today "significant advances" in the performance of its UniversalP2OLED solution-processible, phosphorescent OLED material systems. UDC reported that the solution-based system now approach the performance of vacuum-evaporated PHOLEDs.

The new green system feature 66 candelas per Ampere (cd/A) and 130,000 hours lifetime at 1000 nits luminance. That's about two times improvement from a year ago. The new red system offers 15 cd/A and 62,000 hours, and the light blue offers 18 cd/A and 5,000 hours. UDC has also demonstrated ink-jet printing with comparable performance to devices made by spin-coating.

Back in February, Pioneer and Mitsubishi Chemical has announced an OLED Lighting JV. Pioneer will produce OLED lighting panels, Mitsubishi Chemical will supply chemicals and will market and sell the panels through their Verbatim daughter company.

We had the good chance to speak with Verbatim regarding this new OLED business.

Q: Are there any updates on the OLED JV?
Mitsubishi Chemical Corp will start to supply samples at the end of 2010, and mass production in the middle of 2011.

A new project called TOPDRAWER (Thin organic prototypes, design, research, applications with end-user recognition) has secured funding from the UK government, and will start in early November and will run for 2.5 years. This is actually a followup project to TOPLESS, and is also lead by Thorn lighting.

TOPLESS project OLED lamp prototype

The consortium will develop and demonstrate a printed manufacturing process that will be integrated into attractive designs that have been created through consultation with potential end-users. The manufacturing process will be proved and tested within PETEC, that will acquire and install a large-area coating line.

GE and Konica Minolta announced that they have achieved a "major breakthrough" in their white OLEDs: an efficient 56Lm/w flexible white OLED that is made using solution-coatable materials in a roll-to-roll printing process. The materials have "commercially viable lifetime" (we do not know exactly what they mean by that).

GE and Konica Minolta flexible desk lamp prototype

GE and Konica Minolta plan to introduce their flexible OLED lighting products next year (2011), and have already displayed some early prototype lamps (one of which is shown above). They are working together since 2007. KM hopes to see $1 billion in OLED Lighting sales by 2018. KM has licensed OLED IP from UDC.

The Printable Electronics Technology Centre (PETEC) has announced plans for a new prototyping line to support the lighting and Organic Photovoltaic sectors. The new line is targeted at industries needing large area coating capability alongside the need for reproducible uniform and low defectivity thin film coating onto glass and plastic substrates.

It is designed to be an automated batch tool based on cassette handling of samples to minimise manual intervention. The specification has been aligned with the needs of the SSL and PV industry. It will produce up to 20 samples per day with a panel size from 100mm to 200mm square. The line will have slot-die and spin coating modules, metal and organic evaporation and encapsulation.  It will enable the deposition of solution and small molecule OLED material technologies. It will target fine coating active layers of 10-200nm thinness with uniformity of +-5% across the full panel width.

Last week we reported that PolyPhotonix plans to launch a 8" 60lm/W OLED Lighting panel. They will be using this line at PETEC.

Sumitomo Chemical has developed a new 6.5" AMOLED panel. It's a polymer-based OLED made by printing technology, sealed by a metal plate. It was made by Sumitomo's "Device Development Center," which was established in August 2009.

A few days ago, DuPont has unveiled new printable OLED materials. DuPont now say that they can print a 50" OLED TV in under two minutes. They are using a custom-made printer from Dai Nippon Screen Manufacturing Co.

Dupont worked with Dai Nippon Screen to develop a multi-nozzle printer for the new inks. The Dai Nippon printer generates a continuous stream of ink, rather than droplets, and moves over a surface at rates of four to five meters per second while patterning a display.