Embodiments provide an organic light emitting diode (OLED) display apparatus capable of measuring a cooling time of a display panel even if the supply of power is interrupted.

Embodiments provides an OLED display apparatus capable of measuring a cooling time of a display panel by using a switch element and a capacitor, even if the supply of power is interrupted, without expensive battery or RTC circuit.

In one embodiment, an OLED display apparatus includes: a display panel; a discharge circuit configured to discharge a voltage if the display panel is driven for more than a predetermined time and the supply of power to the display panel is interrupted; and a processor configured to, if the power is supplied, determine whether a cooling time required for afterimage compensation of the display panel is satisfied, and if the cooling time is satisfied, perform the afterimage compensation of the display panel.

According to various embodiments of the present disclosure, if the supply of power is interrupted, the cooling time of the display panel can be measured. Thus, it is unnecessary to turn off the screen so as to secure the cooling time in a state in which the power is on. Therefore, the afterimage compensation can be quickly performed.

According to various embodiments of the present disclosure, if the supply of power is interrupted, the cooling time of the display panel can be measured by using an inexpensive discharge circuit, thereby achieving cost reduction.

The details of one or more embodiments are set forth in the accompanying drawings and the description below. Other features will be apparent from the description and drawings, and from the claims.