PURPOSE: A direct type backlight unit is provided to increase the uniformity of the brightness and to make a backlight device be slim in order to insert an LED package in the lower part of a light guide plate. CONSTITUTION: A groove(31) is inserted in an LED package. The LED package is inserted in the groove of a light guide plate. The LED package is formed in an incline in order to seal an LED chip. The light is income from the LED package chip.
