Nanosys Gets 3M to Bring Its Quantum Dot Technology to LCDs

Will sprucing up LCDs with quantum dots help the displays compete with OLEDs?

2 min read
Nanosys Gets 3M to Bring Its Quantum Dot Technology to LCDs


It appears that Nanosys Inc. has found a Liquid Crystal Display (LCD) manufacturer to bring its quantum dot material to market. Nanosys will be supplying its Quantum Dot Enhancement Film (QDEF) technology to the Optical Systems Division of 3M Company to produce an LCD capable of displaying 50 percent more color.

“We are working together to improve an area of display performance that has been largely neglected for the last decade,” said Jason Hartlove, President and CEO of Nanosys in a company press release announcing the agreement. “Improving color performance for LCDs with drop-in solutions will bring a stunning new visual experience to the consumer and a competitive advantage to the LCD manufacturer against new display technologies such as OLED.  Working together with 3M and utilizing their outstanding design and supply chain capabilities will allow our QDEF technology to be widely deployed across all product segments and will ensure availability to all customers.”

While Nanosys seems to have found an avenue for its technology in the LCD market, what became of its attempts to break into the Light Emitting Diode (LED) biz? Back in 2010 I covered the company's use of quantum dots for use in LEDs and was provided a primer on the technology from its Vice President of Worldwide Sales & Marketing at the time, Victor Hsia:

“Nanosys synthesizes quantum dot phosphor material which is subsequently packaged in a form called a Quantum Rail. For LED backlit displays, our Quantum Rail is inserted between an illuminating strip of blue LEDs and the input edge of the display's lightguide panel. Current LED backlights use conventional white LEDs (which are BLUE LEDs with YAG phosphor) that cannot produce saturated GREEN or RED colors. In contrast Nanosys' Quantum Rail produces a pure white light by using a BLUE LED with Green and Red Quantum Dot phosphors, which results in a tuned white light source that enables over 100 percent NTSC color gamut using the same high volume LCD display manufacturing flow that exists today.”

So, what happened? I have looked for some more information on how the Nanosys technology is being used in LEDs but haven’t turned up much.

Getting back to this recent announcement, it’s an interesting approach that both 3M and Nanosys are taking. They spruce up good old LCD technology so that it can better compete with Organic Light Emitting Diodes (OLED) technology performance. The big question will be whether it can actually deliver on that promise of equal performance at a fraction of the cost and better energy efficiency. We’ll see when a product comes to market.

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A Circuit to Boost Battery Life

Digital low-dropout voltage regulators will save time, money, and power

11 min read
Image of a battery held sideways by pliers on each side.
Edmon de Haro

YOU'VE PROBABLY PLAYED hundreds, maybe thousands, of videos on your smartphone. But have you ever thought about what happens when you press “play”?

The instant you touch that little triangle, many things happen at once. In microseconds, idle compute cores on your phone's processor spring to life. As they do so, their voltages and clock frequencies shoot up to ensure that the video decompresses and displays without delay. Meanwhile, other cores, running tasks in the background, throttle down. Charge surges into the active cores' millions of transistors and slows to a trickle in the newly idled ones.

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