CPI produces large area small molecule and polymer OLED lighting demonstrators
03 June 2013

Researchers at the UK's Centre for Process Innovation (CPI) have recently produced defect free OLED lighting demonstrators with emissive areas of greater than 250cm2.

The device structure produced is hybrid in construction consisting of a solution processed hole injection layer, and a small molecule emissive layer deposited by a co-evaporation technique.>/p>

Slot die coating technology has been utilised to provide a large area, defect free, thin film coating. An encapsulation process utilising glue dispense and getter placement completes the panel assembly to maximise lifetime and device performance.

Printed hybrid large area OLED lighting panel

Figure: CPI - Printed hybrid large area OLED lighting panel

DOE announces US$10 million of new investments to drive cost-competitive OLED and LED lighting
03 June 2013

The U.S.DoE has announced two OLED lighting manufacturing research and development projects to support energy efficient lighting products. The projects will focus on reducing manufacturing costs, while continuing to improve the quality and performance of organic light-emitting diodes (OLEDs).

While life-cycle costs are attractive, the initial price OLED lighting is currently higher than the price of traditional lighting. The projects announced today will help achieve significant cost reductions in manufacturing equipment and processes, while improving lighting quality and performance

OLEDWorks : $1 million investment

The OLEDWorks project will develop and demonstrate new spray printing equipment that reduces overall manufacturing costs and could help support cost-competitive mass production. This technique will give manufacturers greater spray control to take full advantage of expensive organic materials and maximise the visible light produced from this material.

Philips to license OLED display patents
03 June 2013

Intellectual Property Exchange International, Inc. (IPXI) has recently announced that it will conduct two public web presentations on June 5 that will unveil IPXI's first Unit License Right (ULR) contract offering, present important offering details and launch the marketing campaign for the ULR contracts.

This first-of-its-kind offering will enable operating companies, investors and other market participants to buy and sell ULR contracts covering a large portfolio of more than 600 patent assets, including 225 issued patents worldwide, related to organic light-emitting diode (OLED) technology for display screen applications. The portfolio is the result of nearly 20 years of research in the field by Koninklijke Philips N.V. (Philips).

Sumitomo Chemical shows printed flexible OLED panel
03 June 2013

According to a Tech-On news report Sumitomo Chemical recently exhibited a flexible printed OLED lighting panel at the recently held Automotive Engineering Exposition (AEE) 2013 in Yokohama, Japan.

Sumitomo Chemical showed several flexible printed polymer OLED panels, these panels had been manufactured using both with a ink-jet printing and roll-to-roll (slot-die) coating technology at ordinary temperatures and pressures.

Printed polymer OLED lighting on flexible substrate

Figure: Sumitomo - Printed polymer OLED lighting on flexible substrate

OLED lighting devices are being actively developed both in and outside Japan [Editor's Note: assumed to be Cambridge Display Technology]

Flexible and curved OLED lighting is very attractive to designers, and offers them greater flexibility in the development of innovative and creative lighting products. Sumitomo Chemical specifically said that they expect these OLED panels to be used as ceiling and floor illumination.

In order to enter volume production Sumitomo Chemical intends to further extend the lifetimes of the emissive polymers, improve overall brightness and improve production yields.

The company expects to use both ink-jet and roll-to-roll technologies when the lamp is commercialised.

A spokesperson for Sumitomo Chemical said, "Many other companies are using small molecule. In many cases, small molecules require vacuum deposition and, thus, are not very much suited for printing. On the other hand, printing technologies can be easily applied to our polymer OLEDs."

www.cdtltd.co.uk    www.sumitomo-chem.co.jp    techon.nikkeibp.co.jp

Blackjack Lighting launches OLED table lamp - Aradess
20 May 2013

Lighting designer Stephen Blackman has recently shown a prototype of his new Aradess OLED table lamp featuring Lumiblade OLED GL350 panels by Philips at the recently held 2013 International Contemporary Furniture Fair (ICFF).

Stephen Blackman is launching his own manufacturing company - Blackjack Lighting. Aradess is one of Blackjack Lighting’s first releases, and will be distributed by Illuminating Experiences when it goes into production later this year. The Aradess is expected to have a retail price of US$ 5,900

Aradess OLED table lamp

Figure: Blackjack Lighting - Aradess OLED table lamp

Japan Display Inc annnounces development of 5.2-inch full-HD OLED display
20 May 2013

Japan Display Inc. (JDI) has announced they have developed a high pixel density 5.2-inch (diagonal) organic light emitting diode (OLED) display prototype with full high-definition display resolution of 1,080 horizontal pixels X 1,920 vertical pixels (Full-HD).

According to JDI full-HD resolution is becoming the mainstream mobile display resolution in mobile devices, such as smartphones. JDI has been actively developing OLED display technology and accomplished the development of a full-HD high-resolution (423 ppi) display by successfully integrating high-resolution LTPS backplane, white OLED, and display driving technologies.

5.2 Inch full-HD OLED display

Figure: Japan Display - 5.2 Inch full-HD OLED display

Samsung Display adopts RGB evaporation for AM-OLED panels
20 May 2013

According to a report by Korea IT News Samsung Display has recently decided on its evaporation deposition technology, it is expected that further capital investment aimed at the OLED TV market is likely to materialise before the end of the year.

Until recently Samsung Display faced significant challenges improving its production yield of AM-OLED panels based on RGB evaporation technology. In contrast, LG Display adopted white OLED evaporation method which uses a single white OLED and a separate colour filer. Samsung Display has become confident its RGB evaporation technology yields are improving, and it it rumoured to have raised it to about 60%. As a result Samsung Display will adopt RGB OLED technology in its planned Gen-8 production line.

www.lgdisplay.com    www.samsung.com    www.koreaittimes.com

eMagin announces first quarter 2013 financial results
13 May 2013

Revenues for the first quarter rose 39 percent to $8.5 million versus $6.1 million for the first quarter of 2012. The growth in revenues is primarily attributable to increased display sales, which were higher in the first quarter than any other quarter in the comany's history, and an increase in average selling price due to the mix of products sold.

Gross margin for the first quarter was 44 percent on gross profit compared to a gross margin of 44 percent on gross profit in the same quarter last year. The cost per display increased from the prior year due to higher manufacturing costs associated with the new SNU OLED deposition tool. It is expected that the cost will decrease as the new tool is further optimised.

Samsung and LG rumoured to be closer to settling their battle over patents
13 May 2013

According to news reported by Yonhap News LG Display and Samsung Display are expected to settle their ongoing IP battle over OLED and LCD display technology as the two companies recently sat down together in a number of separate meetings to find a mutually acceptable solution. It is widely believed that the companies will eventually cross-license the patents being disputed.

It is known that the two companies are currently disputing seven technology patents on OLED owned by LG Display and seven patents on LCD technology owned by Samsung Display.

Universal Display announces financial results for first quarter 2013
13 May 2013

Universal Display Corp announced its results for the first quarter of 2013. For the quarter UDC reported a net loss of $4.8 million even though revenues where up 19% compared to first quarter 2012. The increase was led by a 21% increase in material sales. Commercial material sales were up 40% compared to the first quarter of 2012. The increase in commercial material sales was due mainly to greater demand for UDC's green emitter and host materials from their AM-OLED display customers.

Samsung is expected to start selling OLED TVs in June
06 May 2013

According to an article by Digitimes Samsung Electronics is expected to begin selling 55-inch OLED TVs (product code - ES9500) in South Korea in June 2013. This will be closely followed by the Taiwanese market in the 3rd quarter of 2013.

Rumours continue to circulate that Samsung has ongoing issues in producing OLED TV panels in sufficient quantities because of low yields in productions and a number of other technology related barriers. Initially, the product will be in limited supplu, but no ramp-up schedule has been made public.

Samsung's 55-inch OLED TV is not the first company to launch 55-inch OLED TVs as LG Electronic has already launched its own range 55-inch OLED TVs - EM9600 - and more recently announced a curved OLED TV. This must have placed increase pressure for Samsung to launch its own 55-inch TV despite have both technologicla and production issues to still solve.

LG Electronics may have an technologica advanatge over Samung in lareg area OLED TV as both companies have pursued different architectures for the OLED panel. Samsung has adopted "pure" array of red, green, and blue subpixels, whereas LG Electronic uses white OLEDs (WOLED) overlaid by red, green, and blue filters in addition to a fourth, filter-free white OLED subpixel. This may have allowed LG Electronics to improve production yields. Thereby, gaining an competitive advantage over Samsung.

Which company will be the eventual winner in the OLEDTV market remains to be settled. Although LG and Samsung continue to fight over IP they may have to resolve the differences out of court. Should Samsung continue to have yield problesm there is still the possibility that Samsung may have to license white OLED technology directly from LG if they are to succeed in the marketplace.

www.digitimes.com    www.samsung.com    www.lg.com

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