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Nanosys ships 2000kg QD devices for displays

The firm has shipped its QDEF devices to LCD manufacturers to bring perfect colour and high energy efficiency to millions of devices
Nanosys has passed a major production milestone at its recently opened 60,000 square foot manufacturing facility in Milpitas, California.

A shipment of Nanosys Quantum Dot Concentrate bound for a new generation of consumer devices which will provide brighter and more colorful displays this fall

The shipment of more than 2000kg of Nanosys Quantum Dot Concentrate, used to make Quantum Dot Enhancement Film (QDEF), represents a significant step forward in the adoption of quantum dot technology for displays.

QDEF utilises the light emitting properties of quantum dots to create an ideal backlight for LCDs, which is one of the most critical factors in the colour and efficiency performance of LCDs.

Schematic showing how QDEF works

Unlike conventional phosphor technologies such as YAG that emit with a fixed spectrum, quantum dots can actually convert light to nearly any colour in the visible spectrum.

Pumped with a blue source, such as a GaN LED, they can be made to emit at any wavelength beyond the pump source wavelength with very high efficiency (over 90 percent quantum yield) and with very narrow spectral distribution (only 30 - 40nm FWHM.)

The real magic of quantum dots is in the ability to tune the colour output of the dots, by carefully controlling the size of the crystals as they are synthesised so that their spectral peak output can be controlled within 2nm to nearly any visible wavelength.

Nanosys is demonstrating a 55 inch 4K TV utilising QDEF technology at the IHS E&M Quantum Dot Seminar in Seoul, Korea this week. A drop-in optical component for LCDs, QDEF creates a richer, more lifelike colour experience while consuming significantly less power.

Based on a new generation of quantum dots from Nanosys, the 55 inch set on display in Korea achieves about 40% higher colour gamut than commercially available white-LED based 4k televisions while reducing power consumption by more than 35%.

“QDEF is enabling LCD makers to really challenge the newest OLED technology,” says Jason Hartlove, President and CEO of Nanosys. “We are working with display makers to create a new, perfect colour display experience that is more cost effective, efficient and reliable than anything else currently on the market. This is fundamentally changing the economics of high performance displays back in favour of LCD technology, and demand for QDEF has grown to the point that we’ve significantly expanded our manufacturing to keep up.”

Nanosys is working closely with supply chain partners to continue ramping deliveries as demand for QDEF from global display manufacturers increases.

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