Quantum Dots Enter Mainstream Mobile Device Market

26 November 2013 Cleantech & Nano Publication

Last month, Amazon released Kindle Fire HDX 7 — the first ever mobile device to feature a quantum-dot-enhanced display.

The 7” display includes a Quantum Dot Enhancement Film (QDEF) produced by 3M in collaboration with Nanosys, Inc.  Compared to the traditional LED-LCD display, the QDEF essentially replaces the YAG phosphor of the white LED backlight and functions as a high-efficiency photoluminescent emitter.  The ODEF includes quantum dots of different sizes, which would emit different colors when excited due to quantum confinement effect.  More detail of the QDEF can be found via the link below.

http://www.nanosysinc.com/what-we-do/display-backlighting/qdef-how-does-it-work/

It is noted that the quantum-dot-enhanced display of Kindle Fire HDX 7 does not utilize the electroluminescent property of quantum dots, and thus is not actually a quantum dot light emitting diode (QLED).  Nevertheless, it could signal the beginning of the mass commercialization of quantum dots technology in consumer markets.

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