STRUCTURE OF LCD= First of all you need to know structure of LCD that what type it is.An LCD consist of two glass plates.As LCD stands for LIQUID CRYSTAL DISPLAY.it is quiet clear the(LIQUID CRYSTAL) is used in LCD’s.liquid crystal is used in between the plates. LCD DRAWBACK= As it consist of liquid you cant see it clearly from different angles for example if you are sitting in a room and your LCD is placed at a certain corner and you are sitting in from of it.as you are sitting in front of LCD you can see graphics clearly but if another person is sitting on your right or left he cant see it clearly. DEFECTS= it can affect your eyesight badly as it emits harmful radiations.if you dont believe sit in front of LCD for 5 minutes without changing angle.LED doesn’t emits harmful radiations.i reccommend you buying LEDS iinstead of LCDS