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Published 08:51 21 May 2015 BST
Updated 09:09 21 May 2015 BST

OLED stands for 'organic light-emitting diode', which emit light when electricity is applied. This removes the need for a TV backlight, hence allowing them to be vastly reduced in depth.
It could take another five to ten years for OLED TVs to reach the mass market, however, with LG now working on the product's affordability.