ELECTRONIC DEVICE AND ELECTRONIC SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a display device in which a moving-image mode and a still-image mode which consumes less power can be switched on one screen by operation by a user or automatically on one display screen.SOLUTION: The display device includes: a display panel including a photosensor for detecting touch input by a user; and a storage medium for displaying a keyboard on part of the display screen and storing a program (an application program) for controlling power supplied to a still-image area of the displayed keyboard. The program for controlling power supplied to the still-image area enables power saving.