#3 Is this led or lcd?
Technically, All LED monitors are LCD monitors. But not all LCD monitors are LEDs. Kind of like all eagles are birds, but not all birds are eagles. The main difference between the two technologies is that for LCD displays, the lamps at the back of the screen are “cold cathode fluorescent lamps,” also known as CCFLs, whereas LED displays don’t use fluorescent lamps. Instead, they use Light Emitting Diodes.
So technically, the LG 22'' FHD IPS 3-Side Borderless Monitor with FreeSync™, Model # 22MP400-B is an LED LCD monitor, but manufacturer's drop the LCD part and just refer to monitors that use LEDs (Light Emitting Diodes) as LED monitors to distinguish them from monitors that use CCFLs