Three technologies are used to achieve WCG on displays: OLED (100% NTSC), LED-LCD with revised LEDs and colour filters (80-90% NTSC) and quantum dots ('similar' in gamut to OLED). More than half of the WCG display market this year will be formed of OLED screens. "For some time now, display manufacturers have attempted to attain wider color gamut in their display products, but they were unable to find reliable, mainstream solutions to do so", says Son. "[H]owever, with the advent of quantum dot technology and OLED, wide colour gamut technologies have become much more common in the industry". Analyst Comment Content remains the challenge for WCG in most applications, especially TV. All of the HD TV standards were based on Rec. 709, which is very close to sRGB and is based on CRT performance. As a result, all TV programmes and DVD & Blu-ray content is mastered for Rec. 709. UltraHD Blu-ray will have the option of supporting wider gamuts and that should help to ensure more content that is properly rendered. (BR)