Display device and driving method thereof

摘要

A display device includes: a display unit including a plurality of pixels connected to a plurality of scan lines and a plurality of data lines and emitting light according to corresponding image data; a dummy pixel connected to a dummy scan line and a dummy data line; and a compensation image data generator calculating a compensation amount according to an accumulation light emitting time of the first organic light emitting element to detect the compensation amount corresponding to each accumulation light emitting time of a plurality of second organic light emitting elements of the plurality of pixels by using a decreasing amount of luminance corresponding a resistance of a first organic light emitting element according to an accumulation light emitting time of the first organic light emitting element of the dummy pixel, and compensating the corresponding image data according to the detected compensation amount.

主权项

1. A display device comprising:
a display unit including a plurality of pixels connected to a plurality of scan lines and a plurality of data lines, the plurality of pixels emitting light according to corresponding image data; a dummy pixel connected to a dummy scan line and a dummy data line, the dummy pixel including a first organic light emitting element and each pixel including a second organic light emitting element; and a compensation image data generator configured to: calculate a compensation amount according to an accumulation light emitting time of the first organic light emitting element; detect the compensation amount corresponding to each accumulation light emitting time of the plurality of second organic light emitting elements using a decreasing amount of luminance corresponding to a change in resistance of the first organic light emitting element according to an accumulation light emitting time of the first organic light emitting element of the dummy pixel; and changing a pulse width of the corresponding image data according to the detected compensation amount, wherein the pulse width of the corresponding image data is changed based on the decreasing amount of luminance.