Light emitting diode based light source with cooling liquid arrangement, and projection-type display apparatus

摘要

A light source apparatus includes a mounting substrate, at least one LED chip disposed on the mounting substrate, a liquid, and a sealed container for containing the mounting substrate, the at least one LED chip disposed thereon, and the liquid, wherein the LED chip is in direct contact with the liquid, and the sealed container has at least a part which is transparent to light emitted from the LED chip.