Display device

1 . A display device comprising:

a display panel comprising pixels;

a scan driver configured to sequentially provide scan signals to the display panel;

a data compensator configured to:

detect, within a previous half frame data, a pattern in which a difference between grayscale values of consecutive pixels along a scan direction is greater than a reference value; and

generate compensated frame data by applying, to a current half frame data that immediately follows the previous half frame data within a single frame period, compensation values determined from the pattern; and

a data driver configured to:

generate data signals based on the compensated frame data; and

provide the data signals to the display panel,

wherein the previous half frame data and the current half frame data are temporally distinct halves of the single frame period.

2 . The display device of claim 1 , wherein each of the pixels comprises:

a light emitting element connected between a first power source and a second power source;

a driving transistor configured to provide a driving current to the light emitting element in response to a corresponding data signal among the data signals; and

a switching transistor configured to connect one electrode of the light emitting element to an initialization power source in response to a corresponding scan signal among the scan signals.

3 . The display device of claim 2 , wherein the scan driver is configured to supply, at least twice, the corresponding scan signal to each of the pixels during the single frame period.

4 . The display device of claim 2 , wherein the data compensator is configured to compensate for a grayscale value corresponding to a pixel, which receives the corresponding scan signal while first data signals corresponding to the pattern are provided from the data driver to the display panel.

5 . The display device of claim 1 , wherein detecting the pattern comprises:

comparing, for each data line, first line data with second line data adjacent to the first line data along the scan direction;

determining that a difference between corresponding grayscale values of the first and second line data is greater than or equal to a reference value; and

identifying, as the pattern, pixel positions for which the determination is affirmative, wherein the second line data includes a reference grayscale value corresponding to previous line data just before a large grayscale change.

6 . The display device of claim 1 , wherein the data compensator comprises:

a detector including a first line buffer configured to store first line data from the previous half frame data, a second line buffer configured to store second line data adjacent to the first line data, and a comparator configured to compare corresponding grayscale values of the first and second line data and to output a comparison result indicating that a difference is greater than or equal to a reference value;

a compensator configured to determine compensation values based on a parameter comprising a gain and an offset and the first line data;

a scanner configured to read third line data from the current half frame data corresponding to the first line data; and

an offset controller configured to generate the compensated frame data by respectively adding the compensation values to grayscale values included in the third line data.