I'd suggest something like this:
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
It's only 39" (they make a 50" model) It's 4k, but it'll show regular 1080p perfectly. And it's a VA panel. So it's got good viewing angles and it also has very high contrast with deep blacks.
FYI there are three basic LCD technologies:
TN- Cheap fast and responsive with poor viewing angles and bad color, preferred by gamers
IPS- Expensive reasonably fast, great viewing angles and accurate colors. Poor blacks that look more like dark gray, preferred by artists and casual gamers
VA- Middle range price, not very responsive, good viewing angles, with okay color and dark blacks, preferred for watching movies, and some cad work.
LED backlighting just means a monitor will consume less energy, tend towards cooler colors, last longer, and turn on faster.