The next step forward in display technology is OLED-based screens. OLED displays are thinner, use less power, and provide better picture quality. The linked article says we’ll see them in small devices in another month or two. It may be a while, however, before we get large-screen OLED televisions. Also, there is a significant difference between LED and OLED televisions. Don’t be fooled by the similarity of the acronyms.