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integration of the rear view mirrors was made possible due to the special process developed by Huntsman, allowing its Araldite resins to bond and mechanically protect the OLEDs without compromising their light emitting capabilities.
The topic has been the subject of European research for some time now. In 2004, the OLLA - Organic LEDs for Lighting Applications - Integrated Project, was established to gather and focus European expertise in OLED lighting to jointly realise a high brightness, high efficiency flat light source component and demonstrate its use in ICT and next generation lighting applications. The project’s major challenge was to address the combination of size, lifetime and efficiency of OLEDs without compromising on the white colour. Within the timeframe of the OLLA project, many
Fig. 2. ORECA 01 at 24 Hrs Le Mans, displaying OLED equipped rear view mirror.
By integrating OLEDs into composite parts and combining the advantages of durable composites with the properties of thin, flexible, large surface OLEDs, a range of new generation lighting ideas for the racing industry are just starting to form. For example, on the dash board, side pods or front of the face car, warning lights, leaders lights and brand names could potentially be displayed. And for racing equipment, OLED light sources could be added onto flat carbon surfaces; for example on information panels on pit walls and on trailers, allowing stewards to move cars quickly into the gravel trap at night. In encapsulation technology and moist barriers for flexible
electronic devices, Huntsman and its partners are among the few who are able to make flexible OLED lighting and signage devices. The integration of OLEDs on a racing vehicle represents a great success; heralded as the most successful benchmark projects to date. Holst Centre is now applying the results of this successful integration to its future research activities in furthering encapsulation technologies and moist barriers for flexible electronic devices.
Gaining career enhancing skills
I
t is important for engineers to be continually gaining new skills and developing collaborations. The Royal Academy of Engineering’s Global Research Awards provides funding for UK-based engineers who wish to travel overseas to gain career enhancing skills. “The trip allowed me to build a new
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materials, OLED stacks and processes were developed and large sized lighting tiles were successfully demonstrated. When it ended, the project had also achieved its original goal and was able to demonstrate the basic technology for a white OLED light source. The source, which had an efficiency of 50.7lumen/W, had an initial brightness of 1000cd/m² and was thought to have a lifetime well in excess of 10 000 hours. OLLA was the first and largest European research project on OLED lighting. Now, a number of similar European research projects on OLED lighting have started, including the Fast2Light project, TOPAS, CombOLED, Light InLine and
OLED100.EU, to name a few. The overall goal of
OLED100.EU is to develop all the
necessary technologies forming the basis for efficient OLED applications for the general lighting industry in Europe.
OLED100.EU is focusing on delivering OLEDs with twice the efficiency, 10-times the operational lifetime and 10-times the substrate size.
OLED100.eu is aiming to create an OLED light source measuring 1 x 1m which has an efficiency of 100lumen/W and a life expectancy of 100 000 hours. A further target has been set in order to commercialise the technology, producing such a device for €100/m². Having proved its value within the demanding conditions
of car racing and with the weight of the industry joining forces to progress its development, it won’t be long before we start to see OLEDs taking their rightful place in general purpose, mass market lighting applications. l
Enter 50 or ✔ at
www.engineerlive.com/ede
Huntsman Advanced Materials is based in Basel, Switzerland.
www.huntsman.com/advanced_materials. Huntsman is a member of the F2L project to develop barrier and encapsulation technologies of OLEDs.
network of contacts and to learn from established professionals in the US and Australia,” comment from Ahmed Elsheikh whose trip of six months was spread over three years.
The purpose of the trip could be to access specialist equipment not currently available in the UK, learn new techniques or to establish new projects with internationally leading organisations. ‘The connections have resulted in real progress for collaborative projects with potential for success and there were significant personal achievements’ says
Mark Price who spent sevenmonths at the Georgia Institute of Technology, US. Awards cover up to 50 per cent of the total costs of the secondment, to a maximum of £40k. Costs that can be claimed include salary, flights, accommodation, local transportation and language training if required. For longer secondments, accompanying family member costs for may also be claimed. l
Enter 50A or ✔ at
www.engineerlive.com/ede
The Royal Academy of Engineering, London, UK.
www.raeng.org.uk/gra
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