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[Lighting Japan 2016] Yamagata University Develops Low Cost Flexible OLED Encapsulation

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Innovation Center for Organic Electronics in Yamagata University in Japan discussed low cost flexible OLED encapsulation in Lighting Japan 2016 conference. Existing flexible OLED encapsulation mainly used hybrid encapsulation structure that forms multi-layer thin film passivation layers on top of OLED, and then applying adhesive organic material and laminating gas barrier film. The encapsulation structure presented by Yamagata University forms, of the hybrid encapsulation structure, thermoset resin and barrier film above OLED without multi-layer thin film passivation, and laminate at approximately 130 °C. Yamagata University announced that they were successful in transparent flexible OLED panel development on January 13 using encapsulation, and that this panel will be presented in Printable Electronics 2016 in Tokyo from January 27.

 

The OLED panel to be exhibited is a leaf shaped of 45 mm width, 110 mm length, weighs less than 1.2g, and 250 um thick transparent film substrate that can be folded.

 

According to Yamagata University, if the newly developed encapsulation is applied, the OLED lighting panel price can be reduced as passivation layer is not used. Also, Yamagata University revealed as it can satisfy both transparent and flexible categories simultaneously, it is estimated that it will become a key technology in future transparent flexible OLED lighting development.

Low Cost Flexible OLED Encapsulation, Yamagata University

Sumitomo Chem. Aims for General Lighting Market with P-LED

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Sumitomo Chemical’s Decorative P-LED Lighting Panel, Lighting Japan 2016

Sumitomo Chemical revealed that they are planning to enter the general lighting market with solution process applied P-LED (polymer OLED).

 

Sumitomo Chemical is a company developing polymer and solution process applied OLED lighting panel. The company began actively selling decorative OLED lighting panel from H2 2015.

 

In Lighting Japan 2016 exhibition, Sumitomo Chemical announced that through their polymer materials and process technology, 80-90% of evaporation materials efficiency, and lifetime of approximately 20,000 hours at white 60-80 lm/w have been achieved. From 2017, they are planning to commercialize solution process OLED lighting panel as general lighting, as well as for decorative use, and revealed that the biggest issues are cost and improvement of consumers’ OLED awareness.

 

According to these issues, Sumitomo Chemical explained that although the cost of emitting area formed through solution process, cost down of evaporation formed emitting area and electrode part is required further. Although the 20,000 hours of lifetime is satisfactory, as consumers are aware that LED lighting’s lifetime is 40,000 hours or longer, Sumitomo Chemical pointed out it is important to change consumer’s OLED lighting awareness and understanding of lighting products.

 

by Moojong Lim, reporter@olednet.com

[Lighting Japan 2016] LED Lighting Industry Crisis. Solution?

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Osram Bussiness Unit Digital Systems’s CEO, Geert van der Meer, Lighting Japan 2016

 

In Lighting Japan 2016 Keynote Session, Geer van der Meer, CEO of Osram Business Unit Digital Systems, suggested directions for future lighting industry.

 

Geert van der Meer explained that the current lighting market is rapidly adopting LED, but the large volume of Chinese products is decreasing the price of LED source and device quickly. He emphasized that with the trend of disappearance of lighting companies’ profit, new business format is required to create profit.

 

The new businesses suggested by Osram are embedded lighting, and connected and smart lighting. He suggested lighting industry should move toward where the lighting can be used as part of building materials through internal installations and utilization as indirect illumination, and adopt smart system and form smart building and furthermore, smart city.

 

The current lighting market’s players are being joined by IT related companies, BMS (business management system) companies, and electronic appliances companies, and its megatrend is changing rapidly. Accordingly, Osram is expanding from the existing lighting to lighting electronics such as module and control gears, lighting solution system, and specialty lighting such as OLED and automotive. Osram also revealed that they took over a wireless energy management system company called ENCELIUM and intensifying focus on smart lighting system business.

 

Smart system provides many different functions such as energy reporting, remote and preventative maintenance, personal lighting control, and zone analysis among others and can optimize energy reduction, maintenance cost reduction, and workspace environment. Van der Meer emphasized that new function can be created through lighting used area’s data analysis and become the focus of future lighting analysis.