| abstract |
A white LED device using a multichip according to the present invention, when compared to a white LED device using a prior art RGB multichip, can maximize green LED efficiency within a yellow gap and minimize the deviation between chips of other colors, minimize the deviations in temperature, current, and droop characteristics between chips, and simplify a drive circuit, so as to be suitable for industrial application. Also, when compared to a conventional white LED device of a single chip structure, the multichip white LED device of the present invention can realize a high color rendering index (Ra > 80), is capable of a wide range of color temperature adjustments at 2700 to 12000K, and not only has ample color reproduction using emotional lighting, but also can produce white light due to high efficiency. |