Display device and control method thereof

A display device includes: an organic EL element (110), a data line (31), an inspection transistor (140) inserted between an anode of the organic EL element (110) and the data line (31), a current generation circuit (40) connected to the data line (31), a voltage generation circuit (30) connected to the data line (31), and a control unit.  The control unit is electrically connected to the inspection transistor (140) and causes the data line (31) to execute precharge from the voltage generation circuit (30).  Then, the control unit causes a voltage detection circuit (50) to measure an anode voltage of the organic EL element (110) while current is applied from the current generation circuit (40) to the organic EL element (110).  If it is judged that the anode voltage of the organic EL element (110) measured by the voltage detection circuit (50) is not stable, the control unit updates the precharge condition.