Patent ID: 8736638

Claim:
An organic light emitting display device, comprising: a display including a plurality of pixels, each of the plurality of pixels being provided with a light emitting element; a driver configured to provide each of the plurality of pixels with an original luminance signal, a target pixel with a predetermined detection luminance signal, and each of peripheral pixels of the plurality of pixels that surrounds the target pixel with an adjusted luminance signal; and a display controller that tests for deterioration of the light emitting element in the target pixel by being configured to: provide the original luminance signal to each of the plurality of pixels by providing the driver with the original luminance signal; and provide the predetermined detection luminance signal to the target pixel of the plurality of pixels by providing the driver with the predetermined detection luminance signal, wherein, when the display controller provides the predetermined detection luminance signal to the target pixel, the display controller is configured to: divide a luminance difference between the original luminance signal corresponding to the target pixel and the predetermined detection luminance signal into a plurality of offset luminances; perform one of an addition operation and a subtraction operation with the plurality of offset luminances and the original luminance signal corresponding to each of the peripheral pixels of the plurality of pixels that surrounds the target pixel; and provide the peripheral pixels with the adjusted luminance signals corresponding to results of the one of the addition operation and the subtraction operation to offset a difference between the original luminance signal and the predetermined detection luminance signal corresponding to the target pixel.