The first batch of (likely consumer) LED-backlit panels will come from AU Optronics in 20" 4:3, 1600x1200 format. They'll be able to achieve 105% of the NTSC color space (current consumer LCDs can only reach 72%).
See this slide from FPD Taiwan 2006: auo_m201un03_v0.png
Details here: AUO HiColor
See this slide from FPD Taiwan 2006: auo_m201un03_v0.png
Details here: AUO HiColor