OLEDs undergo biocompatibility testing

Researchers from LMGP and Leti tested OLEDs developed by Leti for microdisplays for toxicity to determine whether the OLEDs could be used in biological environments. The researchers monitored the growth of two cultures (one cellular and one bacterial) in which an OLED had been placed and compared growth to control cultures. They found that the OLED did not negatively impact cell or bacteria growth—proof that the silver and aluminum in the OLEDs do not cross the devices’ encapsulation material.

Compared to the LED lights currently used by biologists, Leti’s high-emission OLED could deliver more precise light excitation by placing the cell just a few microns from the pixel.

Contact: tony.maindron@cea.fr

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