The BMBF-funded project R2flex took two and a half years, and invested 11 million euros. Recently, this project was finished successfully. The project aims to developnew technologies, the use of roll-to-roll (R2R) processing technology made affordable and efficient flexible OLED, and finally showed a flexible OLED desk lamp. It uses two OLED lighting panels, adopts COMEDD production, and connects together through flexible serial connection.
The flexible OLED panels are made on aluminum foils, this metal is very cost-effective as a substrate, which is consistent with one of the project’s main objectives – to reduce the OLED production cost.
As part of the project, Fraunhofer COMEDD improved the R2R research line and developed new models and packaging technology. They said they also established a new technology, it transferred the OLED substrate from rigid process to roll-to-roll process.
In this project, the main challenge is to develop the complex structure for the OLED deposition techniques. Roll-to-roll production line is very complex to execute this process, but it still can be successfully completed. Tridonic assesses this flexibleOLED technology includes the safety and low-cost of metal substrate, as well as their lamps integration. The problems caused by the blocking membrane were solved by Tridonic and Fraunhofer COMEDD together.
In this project, the other partners including: Von Ardenne, Novaled, heliatek, Laytec, Alanod, Fraunhofer, IAPP, LEDON, 3D-Micromac AG and CreaPhys.
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