What the heck are quantum dots? And why are they in my TV? Scientifically, they’re a nanocrystal made of semiconductor materials – which means very little to me. What I can tell you is that they’re in various high-end 2015 TVs from Sony, Panasonic, Samsung and LG and the result is a much wider range of colours.
It sounds a little like marketing hype but the technology is real and it honestly does make a big difference. Consumer TVs are not the only real world application for this technology and in fact they were first discovered nearly 35 years ago. They have been used in transistors, diodes, solar cells and other imaging devices.
Like I said though, quantum dots in TVs are all about colour. Depending on their size, they emit a particular colour of light when hit with any colour of light. And this light is much more pure than can be achieved in a typical LCD panel. So rather than a white LED back light, TVs with this quantum dot technology feature a blue LED back light which then ‘powers’ the blue and red channels created with quantum dots.