The processor 190 may control an overall operation of the OLED display apparatus 100.

The processor 190 may include a timing controller. However, this is merely an example, and the timing controller may be present as a separate element from the processor.

The timing controller may control driving timings of the gate driver and the data driver based on a timing synchronization signal input from an external system main body (not shown) or a graphic card (not shown).

The timing controller may generate a gate control signal and a data control signal based on a timing synchronization signal such as a vertical synchronization signal, a horizontal synchronization signal, a data enable signal, a dot clock, or the like.

The timing controller may control the driving timing of the gate driver through the gate control signal, and may control the driving timing of the data driver through the data control signal so as to be synchronized therewith.

The processor 190 may measure the use time of the display panel 150. If the measured use time exceeds a predetermined time, the processor 190 may automatically perform an afterimage compensation algorithm for preventing pixel deterioration of the display panel 150.

In one embodiment, the predetermined time may be 2,000 hours for household use, and 600 hours for a store, but this is merely an example.

The processor 190 performs an operation for compensating for an afterimage generated in the display panel 150 at regular periods, so as to prevent deterioration of pixels constituting the display panel 150.

In order for accurate afterimage compensation, the display panel 150 needs to be sufficiently cooled.