Roll-to-roll - Page 2

The SOLEDLIGHT (Solution Processed OLEDs for Lighting) project was launched in 2015 by a European consortium with an aim to develop cost efficient, roll-to roll (R2R) solution processed OLEDs, including their integration in prototype multiple-panel OLED lighting systems and luminaires.

The SOLEDLIGHT consortium (which is coordinated by the University of Valencia and includes OSRAM and Solvay) reported that it managed to develop multi-layer R2R solution processed OLEDs that achieved a power efficiency of 20 lm/W. This is still not up to par with evaporation-based OLEDs, but the project partners aim to achieve 100 lm/W (and 15,000 hours) by the end of 2017.

The Fraunhofer FEP institute, in collaboration with Nippon Steel & Sumikin Materials (NSMAT) and Nippon Steel & Sumitomo Metal Corporation (NSSMC), developed a new OLED lighting prototype that is made on a stainless steel substrate.

The researchers say that a stainless steel substrate has several advantages compared to glass or plastic - it has excellent thermal conductivity and excellent barrier properties. The lighting panel features an extremely homogenous OLED light, thanks to the planarization layer developed by NSSMC. The prototype panel was produced at the Fraunhofer's R2R research line.

In March 2016 the EU launched a new project, called PI-SCALE, that aims to create a European-wide pilot line which will enable companies of all sizes to quickly and cost effectively test and scale up their flexible OLED lighting concepts and turn them into market ready products.

PI-SCALE members started to produce sample panels - and can currently make long films up to 10 meters in size. You can see such sheets (cut to 1.8 meters) in the video above, taken at SID DisplayWeek.

Fraunhofer FEP and Sefar developed a roll-to-roll processed large-area flexible OLED lighting panels in a joint project. This achievement followed a batch-based flexible OLED panel demonstrated in early 2017.

The R2R process currently used enables Fraunhofer and Sefar to produce 30 cm wide OLEDs in lengths of up to 30 meters.

The National Centre of Flexible Electronics (FlexE Centre) at the Indian Institute of Technology in Kanpur announced that it assigned UK-based RK PrintCoat Instruments to manufacture and supply a bespoke roll-to-roll (R2R) pilot line that will be used for R&D and prototyping projects in the field of printed and flexible electronics.

The National Centre for Flexible Electronics (FlexE) was established in 2014 at the Indian Institute of Technology in Kanpur, with an aim to bring together Indian academia, industry and public research organizations for research and development of large area flexible electronics. The FlexE center develops OLED lighting and OLED signage applications and is collaborating with industrial partners in both fields. The center explores evaporation, printing and hybrid processing for OLED production.

Von Ardenne announced that the company developed an innovative machine to process flexible glass. The FOSA LABX 330 Glass enables a roll-to-roll glass coating process. This first of its kind machine was developed as part of the German KONFECT project, launched in 2015, together with partners Fraunhofer FEP, Schott and Tesa.

Von Ardenne now says that it intends to intensify its cooperation with the Fraunhofer FEP in the flexible glass coating field. The Fraunhofer will present coating samples of glass produced using the new machine for the first time at LOPEC 2017.

In March 2016 the EU launched a new project, called, PI-SCALE, that aims to create a European-wide pilot line which will enable companies of all sizes to quickly and cost effectively test and scale up their flexible OLED lighting concepts and turn them into market ready products.

As one of the core-founders in this project, the Fraunhofer FEP is soon set to present the first demonstrators of flexible OLED out from this project. The OLED prototype you see above was deposited using a roll-to-roll by Nippon Electric Glass, on an ultra-thin glass.

In October 2013, the German Federal Ministry of Education and Research (BMBF) launched a new flexible OLED lighting project called R2D2 with an aim to investigate new production technologies, including roll-to-roll techniques.

R2D2's coordinator Fraunhofer FEP, now reports that the project has been successfully completed. OLED production processes and market sectors were thoroughly analyzed, the potential for improvement was identified and realized. The project partners developed a series of OLED lighting applications combining special design features with efficient fabrication techniques.

GJM developed a new 300mm roll-to-roll deposition system that can directly deposit both organic and inorganic materials on plastic materials - and be used to mass produce flexible OLEDs. The system was developed in collaboration with the Korea Institute of Machinery & Materials.

GJM says that its R2R system can speed up production times compared to current systems - by about 50% (GJM says that production amount can be improved by 1.5 times) - and so contribute to lower cost production. The system can be used to produce both OLED display and lighting panels.

The Fraunhofer FEP announced new large-area flexible OLED lighting panel prototypes that have been fabricated on ultra-thin glass and encapsulated with a ultra-thin glass foil in the same process.

The new process developed at the Fraunhofer institute is able to deposit OLEDs on the flexible glass and encapsulation it using an additional flexible glass layer - all in a a single roll-to-roll manufacturing step.