Abstract
It comes into the market, and LCD is the especially main current in a small terminal recently as for FPD of various each companies.
However, the optical transmittance of LCD is difficult and it is difficult to maintain brightness with a past backlight unit because it is very low with 3˜4%.
Decreasing the consumption of the electric power in this research and the number of parts are decreased, the cost is reduced or it pays attention to a possible right under type, and the backlight unit to enable it is developed.
How much light is expanded with one LED is verified for that.
