The big players in the television technology race are squaring off over the latest version of the "next big thing". They have already shrunk our sets to whippet thin and super light, offered us new kinds of practical wall-mounting options, and rounded up unsightly cables. But the quality of the screens and the pictures they offer us is still undergoing innovation and competition. Brands such as LG and Sony are betting on organic light-emitting diode (OLED) screens, while Samsung champions quantum dot ones. But what’s the difference? OLEDs are not back-lit by a LED screen, but by electrifying the organic material of the screen itself. So sets can be thinner than LED TVs and offer incredible response time and colour accuracy. This is because the pixels are controlled individually, and if a section of the picture is black, the pixels in that section of screen do not light up at all. That way they achieve excellent contrast. Quantum dot has been around a while. Tiny nanocrystals — from ...
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