Display device, driving device for display device, and driving method thereof

1. A display device comprising:

a display, comprising:

a plurality of first horizontal lines, each including repeatedly disposed sets of pixels, each set including a red pixel, a green pixel, a blue pixel, and a green pixel, which are sequentially disposed, and

a plurality of second horizontal lines, each including repeatedly disposed sets of pixels, each set including a blue pixel, a green pixel, a red pixel, and a green pixel, which are sequentially disposed,

wherein the first and second horizontal lines are alternately arranged so as to be interleaved in a column direction;

a signal controller configured to i) detect a first input video signal and a second input video signal for pixels respectively disposed on a left outermost vertical line and a right outermost vertical line of the display, ii) correct the first input video signal and the second input video signal so that they have grayscales that are less than respective threshold values and iii) combine the corrected video signals so as to form a video data signal; and

a data driver configured to apply data voltages to the display according to the video data signal.

2. The display device of claim 1 , wherein the signal controller corrects either of the first input video signal and the second input video signal by multiplying the input video signal having a grayscale that is greater than the threshold value by a reciprocal number of the threshold value or by the threshold value expressed as a fraction of the full scale gray level.

3. The display device of claim 2 , wherein the signal controller outputs the video data signal in the same input order as the input video signal.

4. The display device of claim 1 , wherein each of a plurality of pixels included in the display include an organic light emitting diode (OLED).

5. A driving device for a display device comprising:

an edge detector for detecting a first input video signal and a second input video signal respectively corresponding to a left outermost vertical line and a right outermost vertical line of a display from an input video signal;

a comparator for comparing grayscales of the first input video signal and the second input video signal with respective threshold values;

a corrector for correcting an input video signal with a grayscale that is greater than the corresponding threshold value to be a corrected input video signal with a grayscale that is less than the threshold value; and

a latch configured to generate a video data signal based on i) input video signals other than the first input video signal and the second input video signal received from the edge detector, ii) the input video signal with a grayscale that is less than the threshold value received from the comparator, and iii) the corrected input video signal received from the corrector.

6. The driving device of claim 5 , wherein the display comprises:

a plurality of first horizontal lines, each including repeatedly disposed sets of pixels, each set including a red pixel, a green pixel, a blue pixel, and a green pixel, which are sequentially disposed, and

a plurality of second horizontal lines, each including repeatedly disposed sets of pixels, each set including a blue pixel, a green pixel, a red pixel, and a green pixel, which are sequentially disposed,

wherein the first and second horizontal lines are alternately arranged so as to be interleaved in a column direction.

7. The driving device of claim 5 , wherein the corrector generates the corrected input video signal by multiplying the input video signal with a grayscale that is greater than the threshold value by a reciprocal number of the threshold value or by the threshold value expressed as a fraction of the full scale gray level.

8. The driving device of claim 5 , wherein the latch outputs the video data signal in the same order as the input order of the input video signals.

9. A method of driving a driving a display device, the display device including a plurality of first horizontal lines, each including repeatedly disposed sets of pixels, each set including a red pixel, a green pixel, a blue pixel, and a green pixel, which are sequentially disposed, and a plurality of second horizontal lines, each including repeatedly disposed sets of pixels, each set including a blue pixel, a green pixel, a red pixel, and a green pixel, which are sequentially disposed, wherein the first and second horizontal lines are alternately arranged so as to be interleaved in a column direction, the method comprising:

detecting a first input video signal and a second input video signal respectively corresponding to a left outermost vertical line and a right outermost vertical line of the display;

comparing grayscales of each of the first input video signal and the second input video signal with respective threshold values;

correcting the input video signal with a grayscale that is greater than the corresponding threshold value to be a corrected input video signal with a grayscale that is less than the threshold value; and

generating a video data signal including the corrected input video signal.

10. The method of claim 9 , wherein the correcting includes generating the corrected input video signal by multiplying the input video signal with a grayscale that is greater than the threshold value by a reciprocal number of the threshold value or by the threshold value expressed as a fraction of the full scale gray level.

11. The method of claim 9 , further including storing input video signals other than the first input video signal and the second input video signal.

12. The method of claim 11 , further including storing the input video signal with a grayscale that is less than the threshold value.

13. The method of claim 12 , wherein the generating of a video data signal includes generating the video data signal by combining an input video signal with a grayscale that is less than the threshold value with the corrected input video signal and the input video signals other than the first input video signal and the second input video signal.

14. The driving device of claim 5 , wherein the corrector is configured to receive the grayscales of the first and second input video signals that are greater than the respective threshold values and correct the received grayscales to generate the corrected input video signal.