Security of an information processing apparatus is ensured by performing biological information authentication and collecting the environment information about the information processing apparatus. The deep n-well is disposed adjacent to the semiconductor substrate. Embodiments of these compounds have a Kd of less that 0. The compound semiconductor substrate and the electrode layer thus can be kept insulated in an area other than a current injection area, thereby non-emissive failure due to short-circuit is prevented. The lighting control system includes circuitry that compensates for the effects of temperature changes in a lighting device, and that compensates for forward voltage variations among LED lighting modules to provide substantially uniform light output. The display device only displays the selected one word set.