ATTENTION! This is not a TV sale! PLEASE READ CAREFULLY!
You are buying a AUO panel repair procedure for Samsung UE40D5520 TV's with fault panel screen, that have this symptom: image black shadow on 1/3, 2/3 of left/right side of the the screen, sometimes green tracks on fault side. Before you buy this, you have to consider that your panel can be 100% repairable, but, do not buy it, if you don't have electronics skills and instruments such as microscope or magnifier lens, solder iron, and oscilloscope.