New conversion technology
- Quantum Colors technology creates wider gamut coverage for new TV standards
- Has a significant cost advantage without the need for cadmium
OSRAM Opto Semiconductors' new quantum color conversion technology has a wider color gamut coverage, which saves costs compared to traditional quantum dot films and eliminates the need for cadmium for TV displays.  led  Backlighting sets new standards. For years, leading TV manufacturers have been eager for a wider color gamut. The television standard is once again biased towards a larger primary color triangle with ultra-high definition. Quantum color light technology is a technology developed specifically for this standard. Initial customer projects have been launched and this OSRAM technology is expected to be available in the backlit LED applications for the mass market by the end of 2016.
Quantum color light technology is based on a green light quantum converter that is mounted on a blue chip in combination with a red phosphor. Part of the development of this technology was completed by the European Union and the German Ministry of Education and Research (BMBF) funded SSL4EU and Hi-Q-LED projects. It eliminates the need for any cadmium and offers significant advantages over current quantum dot films used in TV backlights to achieve high quality color rendering. The small spectral half-value of only 30 nm in green light means that it can cover 100% of the DCI gamut standard and more than 80% of the REC2020 standard, so quantum color technology has superior color gamut coverage. In addition, this OSRAM technology simplifies the production process and the complete system without the need to modify the system or any other components.
Significantly lower costs
The cost can be reduced by half compared to quantum dot film solutions based on semiconductor particles that are only a few nanometers in size. Mr. Peter Lenz, Head of LED Product Marketing at OSRAM Opto Semiconductors in Germany, said: “There is an example of how much cost a customer can save. For a 55-inch Ultra HD TV with quantum color technology (100% DCI coverage) ), the total cost including all light source costs is 55 euros; in the existing solution, only the cost of quantum dot film is doubled.†(Quantum Dot Film Cost Information Source: “QD material prices are still not touched†Bottom (DisplaySearch - February 6, 2015))
Maintain excellent color consistency
Another advantage is that LEDs using this technology maintain a constant color throughout their life. The quantum dot film will gradually appear pale blue over time. Regarding the service life, the quantum color LED can work for at least 30,000 hours, and the initial test results are good.
Quantum color light technology: the perfect combination of blue chip, red phosphor layer and green light quantum converter.
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