Don’t expect another concentrated upgrade cycle on the scale of the transition from analog to digital television. The industry will soon hit the physical limits of human senses. Greater advancements in picture resolution will eventually be undetectable by the human eye. Most consumers will live happily ever after with a 4-inch deep flat panel display, so ultra thinness may not be the next big thing either. Energy efficiency and connectivity will likely have the biggest impact on the display market in the short to mid-term.
At some point though, all TV manufacturers have a brand or model with these traits, so any competitive advantage by a first mover quickly disappears. In the slightly more distant future, look for flexible displays in everything from “smart” wallpaper to folding pocket displays to interactive digital billboards to make their mark on how society interacts with information.