The present invention provides a display device that can correctly detect the approach of an object to be detected. A display device (10) includes conductors (40a) and (40b) arranged outside a display region (R) on a display substrate so as to extend along the outer periphery of the display region (R). The conductors (40a) and (40b) are configured such that a predetermined voltage is applied thereto and capacitances are formed between the conductors and an object to be detected. The outer periphery of the display region (R) has a corner portion (C) that is at least partially bent. The conductors (40a) and (40b) are adapted such that the capacitance formed between the conductors and the object to be detected at the corner portion (C) is adjusted so as to be approximately equal to the capacitances formed between the conductors and the object to be detected in regions other than the corner portion (C).