On October 24th, OSRAM Opto Semiconductors successfully developed a prototype of a large transparent OLED source in a research project with a thickness of only a few hundred microns. Thanks to the new technology, this organic light-emitting diode does not need to be packaged separately, and it can be surprisingly thin in any design. The transparent test sample has a luminous area of ​​210 cm2, which has already demonstrated the enormous potential of OLED light sources, indicating that many extraordinary lighting dreams will one day become a reality.
Even the 17 x 17 cm2 OLED panel clearly indicates the future direction of the OLED lighting market. Large ultra-thin transparent light sources are the trend. Through these samples, OSRAM Opto Semiconductors has set an important milestone for the development of large-scale ultra-thin OLEDs. These test samples are a development of the TOPAS research project, funded by the German Federal Ministry of Education and Research (BMBF), with the goal of producing large transparent OLED modules with an area of ​​1 m2, which will continue until 2011.
Although the area of ​​the module needs to be further expanded in the future, the product prototype developed this time has already possessed many features that make OLED extraordinary. They are extremely thin and do not require expensive packaging. The thickness is completely dependent on the carrier material substrate and is currently between 300 and 700 μm. The research project will focus on developing thinner carrier materials in the future to create thinner OLEDs. These thin OLED modules will be easier to apply to a wide range of applications, can be made into a variety of shapes, take up very little space, and can be seamlessly integrated into the design environment and will only be detected when the power is turned on. “Transparent OLEDs and flexible OLEDs will add a new aesthetic to lighting solutions in the future,†said Karsten Heuser, head of OLEDs at OSRAM Opto Semiconductors in Germany . “The future of OLED light sources is expected to be integrated into room screens and furniture, for example, the entire window. Made of OLED, it can be naturally lit during the day and shines at night.†The latest OLED will be on display at the Professional Lighting Design Conference (PLDC) in Berlin from October 29th to 31st, 2009. Development results. Through these panels, we can feel the future applications that designers can use to make the most of their imagination.
Large-size transparent ultra-thin OLED panel developed by Osram
OLED panels can be made transparent without any structure reduction, thanks to new developments in electrode design, special component architectures, and new orientations in thin film technology. The illuminating surface does not require any additional conductor path structure, and the current is evenly distributed over the active surface, resulting in consistent brightness. Whether it's based on small molecules or based on polymers to make OLEDs, new technologies simplify the manufacturing process. This technology produces color, warm white and cool white OLEDs regardless of the material used in the active layer. The next phase will integrate the processes into a stable manufacturing system.
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