What is BLU (Back Light Unit)?
Since Liquid Crystal Display (LCD) cannot radiate itself, the screen displayed in LCD can be seen only when the source of light exists at the back of LCD. BLU (Back Light Unit) is a unit of the source of light that makes character or image can be seen on LCD by lighting the whole LCD screen evenly at the back of LCD panel.
BLU, the source of light, must be used for LCD in every system such as TN, STN, and TFT, and the uniformity of the whole screen and the amount of light permeated is determined by the brightness and the equal degree of the source of light to be radiated.
Such BLU requires high-tech engineering to realize high luminance, low electricity, and uniformity as well as thin thickness and light weight. Size : 1.5 inch type single LED(ea) 2 luminance(cd/m2, typ 3,000