Display device and method of driving the same
A display device and a method of driving the same are provided. The method of driving the display includes a display area to display an image. The method includes performing a first first pixel shift driving by shifting an image by a first range in the display area without loss of image information due to enlargement or reduction of the image, checking whether a change of a block grayscale value is greater than or equal to a threshold in an interest area in the display area, and performing second pixel shift driving by shifting an image having the loss of image information.
1. A method of driving a display device comprising a display area to display an image, the method comprising:
performing a first first pixel shift driving by shifting an image in a first range;
performing a second pixel shift driving by shifting the image in a second range smaller than the first range when the image includes a scroll area; and
performing a second first pixel shift driving when the image does not include the scroll area.
2. The method according to claim 1 , wherein the second first pixel shift driving is performed after the second pixel shift driving is performed.
3. The method according to claim 2 , wherein:
in the first first pixel shift driving, the image shift starts at a first point and stops at a second point, and
in the second pixel shift driving, the image shift starts at the first point and stops at a third point.
4. The method according to claim 3 , wherein:
in the second first pixel shift driving, the image shift starts at the second point.
5. The method according to claim 1 ,
wherein in the second first pixel shift driving, the image is shifted in the first range.
6. The method according to claim 1 ,
wherein in the first first pixel shift driving, the image is shifted with enlargement or reduction of the image.
7. The method according to claim 6 ,
wherein in the second pixel shift driving, the image is shifted without enlargement or reduction of the image.
8. The method according to claim 7 ,
wherein in the second first pixel shift driving, the image is shifted with enlargement or reduction of the image.
9. The method according to claim 6 ,
wherein in the second pixel shift driving, the image is shifted with enlargement or reduction of the image.
10. The method according to claim 1 ,
wherein the scroll area includes at least one of a subtitle and text information.
11. A display device comprising:
a display area to display an image; and
a controller to control the image,
wherein the controller is to perform a first first pixel shift driving by shifting the image in a first range,
wherein the controller is to perform a second pixel shift driving by shifting the image in a second range smaller than the first range when the image includes a scroll area, and
wherein the controller is to perform a second first pixel shift driving when the image does not include the scroll area.
12. The display device according to claim 11 ,
wherein the second first pixel shift driving is performed after the second pixel shift driving is performed.
13. The display device according to claim 12 , wherein:
in the first first pixel shift driving, the image shift is to start at a first point and to stop at a second point, and
in the second pixel shift driving, the image shift is to start at the first point and to stop at a third point.
14. The display device according to claim 13 , wherein:
in the second first pixel shift driving, the image shift is to start at the second point.
15. The display device according to claim 11 ,
wherein in the second first pixel shift driving, the image is shifted in the first range.
16. The display device according to claim 11 ,
wherein in the first first pixel shift driving, the image is shifted with enlargement or reduction of the image.
17. The display device according to claim 16 ,
wherein in the second pixel shift driving, the image is shifted without enlargement or reduction of the image.
18. The display device according to claim 17 ,
wherein in the second first pixel shift driving, the image is shifted with enlargement or reduction of the image.
19. The display device according to claim 16 ,
wherein in the second pixel shift driving, the image is shifted with enlargement or reduction of the image.
20. The display device according to claim 11 ,
wherein the scroll area includes at least one of a subtitle and text information.