Osram Opto contends that its new Quantum Colors conversion technology offers much better coverage of the color space and significant cost savings compared with conventional quantum dot sheets. Additionally the quantum conversion technology does not use cadmium. For many years, leading manufacturers of televisions have been demanding an ever broader color space.
The company says it developed Quantum Colors to meet the new TV standard with a larger color triangle, Ultra HD. According to the Osram Opto, initial customer projects are in progress, the company has scheduled the release of backlighting LEDs using the technology for the mass market by the end of 2016.
The company based Quantum Colors on a green quantum converter combined with red phosphor on a blue chip.
The EU and the German Ministry of Education and Research (BMBF) funded the development as part of the SSL4EU and Hi-Q-LED projects. Osram Opto says that its Quantum Colors offer superior coverage of the color space using a narrow green peak with a full width at half maximum (FWHM) of only 30 nm. The company says that Quantum Colors can cover color space standards such as DCI 100 percent and REC2020 more than 80 percent. Osram Opto says that its Quantum Color technology does not require the adaptation of a system or any other components, thus simplifying the production processes and the entire system.
The company asserts that costs of using its Quantum Color technology for displays are half of that of using more conventional quantum dot sheet solutions. Quantum dot sheet solutions use semiconductor particles measuring only a few nanometers.
“I can give you an example of how much customers can save,” said Peter Lenz, Product Marketing LED at Osram Opto Semiconductors. “For a 55-inch Ultra HD TV with 100 percent DCI coverage the complete cost of the light source can be as low as 55 euros based on our Quantum Colors technology. “
Lenz noted that the cost of just the quantum dot sheets in existing solutions is twice as high, according to DisplaySearch.
The company points out that quantum dot sheets tend to take on a bluish tinge over time. However, Osram Opto says that its Quantum Color LEDs offer excellent color consistency throughout their projected lifetime of a minimum of 30,000 hours.
Osram Opto says that initial tests have produced positive results in terms of lifetime and color consistency of the Quantum Color LEDs.