A display device comprising: a power supplying unit configured to output a high-side output potential and a low-side output potential; a display unit in which a plurality of pixels are arranged; a first power source wire electrically connected between an output of the power supplying unit outputting the high-side output potential and each of the plurality of pixels; and a second power source wire electrically connected between an output of the power supplying unit outputting the low-side output potential and each of the plurality of pixels; characterized by a voltage detecting unit configured to detect a high-side applied potential of the supply power applied by the first power source wire to a first pixel (111 MA) in the display unit and a low-side applied potential of the supply power applied by the second power source wire to a second pixel (111 MB) in the display unit, the second pixel (111 MB) being different from the first pixel (111 MA), the voltage detecting unit being further configured to detect the high-side output potential and the low-side output potential which are outputted by the power supplying unit; and a voltage regulating unit configured to receive inputs of a power source potential difference which is a potential difference between the detected high-side output potential and the low-side output potential, any an inter-pixel potential difference which is a potential difference between the detected high-side applied potential and the detected low-side applied potential, and to regulate at least one of the high-side output potential and the low-side output potential outputted from the power supplying unit in accordance with a potential difference between the power source potential difference and the inter-pixel potential difference such that the inter-pixel potential difference reaches a predetermined potential difference. a power supplying unit configured to output a high-side output potential and a low-side output potential; a display unit in which a plurality of pixels are arranged; a first power source wire electrically connected between an output of the power supplying unit outputting the high-side output potential and each of the plurality of pixels; and a second power source wire electrically connected between an output of the power supplying unit outputting the low-side output potential and each of the plurality of pixels; a voltage detecting unit configured to detect a high-side applied potential of the supply power applied by the first power source wire to a first pixel (111 MA) in the display unit and a low-side applied potential of the supply power applied by the second power source wire to a second pixel (111 MB) in the display unit, the second pixel (111 MB) being different from the first pixel (111 MA), the voltage detecting unit being further configured to detect the high-side output potential and the low-side output potential which are outputted by the power supplying unit; and a voltage regulating unit configured to receive inputs of a power source potential difference which is a potential difference between the detected high-side output potential and the low-side output potential, any an inter-pixel potential difference which is a potential difference between the detected high-side applied potential and the detected low-side applied potential, and to regulate at least one of the high-side output potential and the low-side output potential outputted from the power supplying unit in accordance with a potential difference between the power source potential difference and the inter-pixel potential difference such that the inter-pixel potential difference reaches a predetermined potential difference.