Display device and display method

1. A display device, comprising:

a display panel including a plurality of pixels and configured to display an image; and

a display driver configured to drive the display panel, such that

the image includes at least one X-axis edge pattern in which a difference between gradation values of the two pixels adjacent to each other in an X-axis direction is equal to or greater than a reference gradation value difference, and at least one Y-axis edge pattern in which a difference between gradation values of the two pixels adjacent to each other in a Y-axis direction is equal to or greater than the reference gradation value difference, and

a degree of movement of some areas of the image in the X-axis direction is greater than a degree of movement of some areas of the image in the Y-axis direction in response to a number of the X-axis edge patterns included in the image being larger than a number of the Y-axis edge patterns included in the image.

2. A display device, comprising:

a display panel including a plurality of pixels; and

a display driver configured to:

receive input image data and to generate output image data;

analyze the input image data to detect an X-axis edge pattern and a Y-axis edge pattern of an input image;

determine a movement pattern of the input image in response to a number of the X-axis edge patterns and a number of the Y-axis edge patterns; and

generate output image data of an output image in which some areas of the input image are moved according to the movement pattern,

wherein the X-axis edge pattern is a pattern in which a difference between gradation values of two pixels adjacent to each other in an X-axis direction is equal to or greater than a reference gradation value difference, and

wherein the Y-axis edge pattern is a pattern in which a difference between gradation values of two pixels adjacent to each other in a Y-axis direction is equal to or greater than a reference gradation value difference.

3. The display device of claim 2 ,

wherein the reference gradation value difference corresponds to 80% of a maximum gradation value.

4. The display device of claim 2 ,

wherein a degree of movement of the output image in the X-axis direction according to the movement pattern and a degree of movement of the output image in the Y-axis direction according to the movement pattern correspond to a number of X-axis edge patterns in the input image and a number of Y-axis patterns in the input image, respectively.

5. The display device of claim 4 ,

wherein the degree of movement of the output image in the X-axis direction according to the movement pattern is greater than the degree of movement of the output image in the Y-axis direction according to the movement pattern when the number of the X-axis edge patterns in the input image is larger than the number of the Y-axis edge patterns in the input image.

6. The display device of claim 4 ,

wherein the degree of movement of the output image in the Y-axis direction according to the movement pattern is greater than the degree of movement of the output image in the X-axis direction according to the movement pattern when the number of the Y-axis edge patterns in the input image is larger than the number of the X-axis edge patterns in the input image.

7. The display device of claim 2 ,

wherein the display driver is further configured to analyze the input image data to detect a number of frames of the input image.

8. The display device of claim 7 ,

wherein the display driver is further configured to determine a lookup table according to the number of the frames, and to determine a movement direction and a movement amount of the input image using values included in the lookup table.

9. The display device of claim 2 ,

wherein the input image and the output image have a same size.

10. The display device of claim 2 ,

wherein the output image is an image in which a first area of the input image is enlarged, a second area thereof is reduced, and a third area thereof is moved.

11. The display device of claim 10 ,

wherein the output image is an image in which the third area moves from the first area toward the second area.

12. The display device of claim 2 ,

wherein the display driver is further configured to detect an X-axis edge pattern and a Y-axis edge pattern only in some areas of the input image.

13. The display device of claim 2 ,

wherein the display driver is further configured to detect an X-axis edge pattern and a Y-axis edge pattern only in some frames of the input image.

14. The display device of claim 2 ,

wherein the display driver is further configured to detect a diagonal edge pattern of the input image.

15. The display device of claim 14 ,

wherein the diagonal edge pattern is a pattern in which a difference between gradation values of two pixels adjacent to each other in a diagonal direction is equal to or greater than a reference gradation value difference.

16. A display method, comprising:

analyzing input image data to detect an X-axis edge pattern and a Y-axis edge pattern of an input image;

determining a movement pattern of the input image in response to a number of the X-axis edge patterns and a number of the Y-axis edge patterns; and

generating output image data of an output image in which some areas of the input image are moved according to the movement pattern,

wherein the X-axis edge pattern is a pattern in which a difference between gradation values of two pixels adjacent to each other in an X-axis direction is equal to or greater than a reference gradation value difference, and

wherein the Y-axis edge pattern is a pattern in which a difference between gradation values of two pixels adjacent to each other in a Y-axis direction is equal to or greater than a reference gradation value difference.

17. The display method of claim 16 ,

wherein the detecting of the X-axis edge pattern includes:

selecting a comparative pixel set;

determining whether a difference in gradation vales between the comparative pixel sets is equal to or greater than a reference gradation value difference;

counting the number of the X-axis edge patterns when the difference in gradation vales between the comparative pixel sets is equal to or greater than the reference gradation value difference; and

determining whether or not the last pixel is included in the comparative pixel set.

18. The display method of claim 17 ,

wherein the reference gradation value difference corresponds to 80% of a maximum gradation value.