Oled is the biggest candidate to become the new follow up for LCD/plasma
You can import the Sony 11"-oled-tv XEL-1 already,it got a heftyprice tag but that;s with all new technoligy.
More OLED news was on the Display 2008 fare wich was held in Tokyo last April
Sony showed the public an 0,2 imillimeter thick screen, the XEL-1 mentiond above got a screen thickness of 1,4 millimeter.
http://www.eetimes.com/rss/showArticle.jhtml?articleID=205202265&cid=RSSfeed_eetimes_newsRSS
Samsung got plans to sell 40"/42" screens in 2010
http://www.koreatimes.co.kr/www/news/biz/2007/12/123_16260.html
Matsushita, Hitachi and Canon got plans to work together to create a new fab as well special for OLED