A display apparatus according to the present invention includes a surface mount-type light-emitting device that is surface-mounted to a wiring substrate, a lens unit disposed opposing the surface mount-type light-emitting device, and a frame body portion disposed surrounding a circumference of the lens unit. The arrangement includes, but is not limited to a concealable feature adapted to be mounted to an interior surface of a vehicle. in the preparation of nasal drops. A global buffer memory, to which the direct memory access is desired, is coupled to the system bus.