The present invention provides an efficient red fluorescent material and a method for producing the same, provides a white light source and an illuminating device each of which uses this red fluorescent material to achieve snow-white lighting, and furthermore provides a liquid crystal display having excellent color reproduction. The power supply switch circuit is comprised of two PMOS transistors whose gate terminals connect with two pull-up circuits. Thereafter, the data are expanded and transmitted to the printer. The chip body is formed by sintering a mixture of valve metal powder and a sintering inhibitor added as impurities. Therefore, the recording medium can be prevented from being carried into the inside of the apparatus.