Patent ID: 8192055
Filing Date: 2012-06-05
Classification: G02B,G02F,H05K

Abstract:
1. A backlight device provided with a plurality of light emitting diodes, the back light device comprising: a substrate on which the light emitting diodes have been arranged; and a heat dissipating unit to which heat generated by the light emitting diodes is transferred from the substrate, and that dissipates the heat to the outside, wherein an amount of heat generated by each of the plurality of light emitting diodes is measured in advance, and an arrangement position of each of the plurality of light emitting diodes on the substrate is determined in accordance with the measurement results of the amounts of generated heat, and wherein among the plurality of light emitting diodes, a blue light emitting diode that emits blue light has been arranged so as to be adjacent to a red light emitting diode that emits red light or a green light emitting diode that emits green light.