DISPLAY DEVICE, DISPLAY CONTROL METHOD, AND ELECTRONIC APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a display device which can suppress influences of detection errors due to performance variance in a photosensor applied to the display device and appropriately adjust a quantity of light to be given to a display area.SOLUTION: A display device comprises: a first photosensor PS1 for detecting a quantity of light of external light in a display area; a second photosensor PS2 for detecting dark current when light is shielded; changing switches SW1, SW2 for selecting between the first photosensor PS1 and the second photosensor PS2; a comparator 102 for comparing output of the selected first photosensor PS1 or second photosensor PS2 with a prescribed reference value; and control means for operating a difference between a result of comparison of the comparator 102 by the first photosensor PS1 and a result of comparison of the comparator 102 by the second photosensor PS2 and controlling the quantity of light to be given to the display area in accordance with a result of operation.