Display device and method of compensating for luminance of display device

1. A display device comprising:

a plurality of display panels adjacent to each other, each display panel comprising a first pixel in the display panel and a second pixel in the display panel and adjacent to a boundary area of the display panel; and

a luminance correction circuit configured to generate a correction grayscale value for the second pixel,

wherein the luminance correction circuit is configured to:

map a captured luminance image to a unit pixel image comprising a first unit pixel image of a first unit pixel and a second unit pixel image of a second unit pixel, the second unit pixel image reflecting the captured luminance image of the second pixel and the boundary area;

perform a de-blurring operation on the mapped unit pixel image to calculate a correction luminance value for the second pixel and reflect a luminance value of the first unit pixel positioned closest to the boundary area; and

calculate a correction grayscale value for the second pixel corresponding to the calculated correction luminance value of the second pixel.

2. The display device according to claim 1 , wherein a width of the boundary area is narrower than a distance between adjacent first pixels, and the corrected luminance value for the second pixel is less than a luminance value of the first pixel.

3. The display device according to claim 1 , wherein a width of the boundary area is wider than a distance between adjacent first pixels, and the corrected luminance value for the second pixel is greater than a luminance value of the first pixel.

4. The display device according to claim 1 , wherein the first unit pixel image reflects the captured luminance image of the first pixel.

5. The display device according to claim 4 , wherein the de-blurring operation to calculate the correction luminance value of the second pixel comprises a first de-blurring operation and a second de-blurring operation.

6. The display device according to claim 5 , wherein the first unit pixel is not affected by blur of the captured images during the first de-blurring operation.

7. The display device according to claim 6 , wherein the de-blurring operation to calculate the correction luminance value of the second pixel comprises reflecting an operation value determined by the first de-blurring operation and an initial luminance value of the second unit pixel during the second de-blurring operation.

8. The display device according to claim 1 , wherein the correction grayscale value of the second pixel is calculated as a difference between a grayscale value corresponding to a target luminance value of the second pixel and a grayscale value corresponding to a correction luminance value of the second pixel.

9. The display device according to claim 8 , wherein each of the plurality of display panels comprises:

a display unit comprising the first pixel and the second pixel; and

a data driver configured to apply a data voltage to a plurality of data lines coupled to the first pixel and the second pixel.

10. The display device according to claim 9 , wherein the data driver is configured to apply a corrected data voltage corresponding to the correction grayscale value of the second pixel to data lines connected to the second pixel.

11. A display device comprising a plurality of display panels adjacent to each other with a boundary area interposed between the plurality of display panels, the display device comprising:

a display unit comprising a first pixel in the display unit and a second pixel adjacent to the boundary area of the plurality of display panels;

a data driver configured to apply a data voltage to a plurality of data lines coupled to the first pixel and the second pixel;

a luminance correction circuit configured to:

map a captured luminance image to a unit pixel image comprising a first unit pixel image of a first unit pixel image and a second unit pixel image of a second unit pixel, the second unit pixel image reflecting the captured luminance image of the second pixel and the boundary area;

perform a de-blurring operation on the mapped unit pixel image to calculate a correction luminance value of the second pixel and reflect a luminance value of the first unit pixel positioned closest to the boundary area; and

calculate a correction grayscale value of the second pixel corresponding to the calculated correction luminance value of the second pixel.

12. The display device according to claim 11 , wherein the data driver is further configured to apply a corrected data voltage corresponding to the correction grayscale value of the second pixel to data lines coupled to the second pixel.

13. The display device according to claim 11 , wherein the first unit pixel image reflects the captured luminance image of the first pixel.

14. The display device according to claim 13 , wherein the de-blurring operation to calculate the correction luminance value of the second pixel comprises a first de-blurring operation and a second de-blurring operation.

15. The display device according to claim 14 , wherein the first unit pixel is not affected by blur of the captured images during the first de-blurring operation.

16. The display device according to claim 15 , wherein the de-blurring operation to calculate the correction luminance value of the second pixel comprises reflecting an operation value determined by the first de-blurring operation and an initial luminance value of the second unit pixel during the second de-blurring operation.

17. A method of compensating for a luminance of a display device comprising a plurality of display panels adjacent to each other with a boundary area interposed between the plurality of display panels, the method comprising:

receiving a captured luminance image of a first pixel and a captured luminance image of a second pixel;

mapping the luminance image of the first pixel and the luminance image of the second pixel, respectively, to an image of a first unit pixel and a second unit pixel, the image of the second unit pixel reflecting the captured luminance image of the second pixel and the boundary area;

performing a de-blurring operation on the mapped images of the first unit pixel and the second unit pixel to calculate a correction luminance value for the second pixel and reflect a luminance value of the first unit pixel positioned closest to the boundary area; and

calculating a correction grayscale value of the second pixel by using a luminance correction value of the second pixel obtained by the de-blurring operation.

18. The method according to claim 17 , further comprising:

applying a data voltage corresponding to the calculated correction grayscale value of the second pixel to the second pixel.

19. The method according to claim 18 , further comprising compensating a luminance value of the second pixel with a luminance value less than a luminance value of the first pixel, wherein a width of the boundary area is narrower than a distance between adjacent first pixels.

20. The method according to claim 18 , further comprising compensating a luminance value of the second pixel with a luminance value greater than a luminance value of the first pixel, wherein a width of the boundary area is wider than a distance between adjacent first pixels.