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New Osram Conversion Technology for Backlighting LEDs

Quantum Colors is successful combination of a blue chip, red phosphor layer and green quantum converter.

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By: DAVID SAVASTANO

Contributing Editor, Coatings World and Ink World, Coatings World and Ink World Magazine

The new Quantum Colors conversion technology from Osram Opto Semiconductors will set new standards in LED backlighting for TV displays as it offers much better coverage of the color space, significant cost savings compared with conventional quantum dot sheets and zero cadmium.
 
For many years leading manufacturers of televisions have been demanding an ever broader color space. The TV standard is once again moving to a larger color triangle with Ultra HD. Quantum Colors was developed for precisely this standard. Initial customer projects are in progress, and this Osram technology is scheduled for backlighting LEDs for the mass market by the end of 2016.
 
Quantum Colors is based on a green quantum converter, which is combined with red phosphor on a blue chip. The technology was developed in part in the SSL4EU and Hi-Q-LED projects funded by the EU and the German Ministry of Education and Research (BMBF) and does not require any cadmium.
 
This results in numerous advantages over quantum dot sheets, which have been used up to now for high-quality color rendering in TV backlighting. Quantum Colors offers superior coverage of the color space due to a narrow green peak with a full width at half maximum (FWHM) of only 30 nm. Color space standards such as DCI can be covered 100% and REC2020 more than 80%.

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