DISPLAY DEVICE, MOBILE TERMINAL, AND LUMINANCE CONTROL METHOD IN MOBILE TERMINAL

摘要

When an input detection unit (64) has detected that no user operation has been performed to an organic EL display device (11) for a predetermined period of time or when a processing detection unit (66) has detected that a predetermined processing is being performed, a DAC unit (42) outputs an instruction to a reference voltage adjusting unit (72) to modify a reference voltage referenced upon conversion to an analog output signal.