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QD Vision, Inc., manufacturer of quantum dot Color IQ™ optical components for LCD products, today announced the commercial availability of the industry's first green quantum dots (QD) at 30 nanometers Full-Width Half-Maximum (FWHM). With QD Vision's red QDs already at 30 nm, this announcement further reinforces QD Vision's leadership position in providing high performance, full-gamut QD display solutions. The new 30 nm green QDs offer the same high quantum efficiencies and reliable performance (under high-temperature and high-flux operating conditions) that are a signature of QD Vision's cutting-edge quantum dot materials, enabling display manufacturers to immediately benefit from increased performance when developing high-brightness, full-gamut color displays.
In QD LCD products, blue LED's are used together with red and green QDs. Together these products emit spectrally narrow red, green and blue colors to obtain full-gamut color at the best power efficiency. By controlling the FWHM of the QD emission through advanced manufacturing processes, QD Vision's green and red QDs deliver the necessary color saturation to achieve 100% overlap of any major color gamut standard. These new 30 nm FWHM Color IQ™ optics will further improve the color performance in LCD applications, such as TVs, monitors and all-in-one computers.
"QD Vision continues to keep quantum dots on the leading edge of display technology," said John Ritter, Executive Vice President of Product Development, QD Vision. "Our solutions offer the best down-conversion material on the market today, and we continue to develop even narrower FWHM products to produce the most saturated colors at the highest efficiencies for our customers, both now and in the future."
About QD Vision, Inc.
Privately held, QD Vision, Inc. is a nanomaterials product company delivering advanced display and lighting solutions that provide unparalleled color. QD Vision’s Color IQ™ quantum dot technology is the industry’s only optical component solution capable of delivering full-gamut color displays. QD Vision makes full-gamut televisions a commercial reality through precise color tuning, flexible and high-volume multi-SKU manufacturability, proven performance, and easy integration backed by a full range of tools, services and ecosystem support.
Color IQ is a trademark of QD Vision, Inc.
About Quantum Dots (QD)
QDs are semiconductor nanocrystals that possess unique light emitting optical properties. The emission wavelength spectrum of QD light can be tuned to create almost any color of the visible spectrum as defined by the CIE 1931 color space. FWHM, is a simple and well-defined specification used to measure the narrowness (spectral purity) of the emission from light emitting materials, such as QDs. In short, a narrower QD emission produces a wider color gamut, resulting in higher color fidelity and improved backlight performance.
When used in an LCD product, the backlight emission passes through a color filter. Some color filters allow light leakage from one color channel to another, resulting in de-saturated colors. Unlike conventional phosphors with much broader light emission (e.g. FWHM~60-100 nm), QDs have much narrower emission spectra, which helps to reduce the crosstalk between the color channels and improve system efficiency. Also unlike phosphors, the individual emission spectrum of QDs can be fine-tuned to match the peak wavelength of a given color filter to achieve the maximum gamut possible.
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Rainier Communications, on behalf of QD Vision
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