mobilecupofjoe.com's Greg Morris explains Quantum Dots, the technology behind the latest trend in TV's:
It sounds like the name of a Bond movie, and it’s quite possible your next TV will use it. And after LG's big event to announce the G4, it's possible your next mobile phone will have it too. None the less, what exactly is a quantum dot, and why should you care about it?
The color gamut of LCDs is currently limited by the backlight. In today's LCDs, the dominant backlight technology is based on white LEDs, which are composed of blue LED chips combined with cerium-doped yttrium aluminum garnet, a broadband yellow phosphor with low spectral weights at green and red wavelengths. To fabricate displays with a high color gamut using these white LEDs requires color filters with very narrow transmission bandwidths. As a result, the transmissivity of the liquid crystal panels is much reduced, leading to poor power efficiency.
We interviewed Nanosys Inc., one of the key developer and manufacturer of quantum dots for display, in order to share with us the evolution of the industry, the trends linked to the adoption of quantum dots and also what will happen in the next years.