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Osram Opto Semiconductors will showcase an OLED prototypes that can be transparent and flexible at PLDC (Professional Lighting Design Convention) from October 29-31, 2009 in Berlin.

The prototypes now have luminous area of 210 square cm and thickness at present this is between 300 and 700 micrometers, the company said.

The test sample were developed as part of the TOPAS research project funded by the Germany Ministry for Education and Research (BMBF). The aim of the project is to produce one-square meter large transparent OLED modules and will run until 2011.

Thickness is now defined only by the substrate as the carrier material at present is between 300 and 700 micrometers, Osram said.