... work MethodScan:1/4 LED driving methodConstant driving current Gray Grades16384 levels for each color Display Color4, 398, 046 ... , 104 Refresh Frequency (Hz)>=180 Picture display methodDots to dots display synchronized with CRT Signal interfaceDVI Input signalVideo: ... PAL/NTSC optioned.VGA,Svideo,DVD,TV Display format800 * 600,1024 * 768, 1280*1024 ... 1 by 1 indoor full color led display