Displaying image on low refresh rate mode and device implementing thereof

1. A display device, comprising:

a display panel where a plurality of gate lines and data lines are crossed each other and a plurality of pixels is defined;

a gate driver supplying a first signal to the plurality of gate lines;

a data driver supplying a second signal to the plurality of data lines; and

a timing controller setting D number of display frame and S number of skip frame within N number of frame constituting a unit group in a low refresh rate mode and controlling a polarity change of the plurality of pixels in the S number of skip frame, where D, S, and N are natural numbers,

wherein the timing controller maintains a polarity of the plurality of pixels at an end time point of a last skip frame of the unit group when S is an odd number and changes a polarity of the plurality of pixels at the end time point of the last skip frame of the unit group when D is an odd number and S is an even number.

2. The display of claim 1 , wherein the timing controller changes a polarity of the plurality of pixels at a start time point of a first skip frame of the unit group.

3. The display of claim 1 , wherein the timing controller changes a polarity of the pixels in a rising of a skip frame enable signal for blocking a data signal corresponding to the S number of skip frame.

4. The display of claim 1 , wherein the timing controller changes a polarity of the plurality of pixels at a start time point of each of the S number of skip frame of the unit group.

5. The display of claim 1 , wherein the timing controller maintains a polarity of the plurality of pixels when a polarity of a last skip frame of a first group is same as that of a first display frame of a second group.

6. The display of claim 1 , wherein the timing controller changes the polarity of the pixels in a falling of a skip frame enable signal which blocks a data signal corresponding to the S number of skip frame when D is an odd number and S is an even number.

7. The display of claim 1 , wherein the timing controller includes a low refresh rate (LRR) control part receiving a set value of one or more low refresh rate modes and a set value which controls the polarity change, and controls a low refresh rate drive of the display panel.

8. A method of displaying an image on a low refresh rate mode for a display which includes

a display panel where a plurality of gate lines and data lines are crossed each other and a plurality of pixels is defined, a gate driver supplying a first signal to the plurality of gate lines, a data driver supplying a second signal to the plurality of data lines, and a timing controller supplying a signal to control the gate driver and the data driver,

selecting a low refresh rate mode in a frame skip scheme by the timing controller;

setting D number of display frame and S number of skip frame in N number of frame constituting a unit group in the low refresh rate mode by the timing controller, where D, S, and N are natural numbers;

maintaining the polarity of the plurality of pixels at an end time point of a last skip frame of the group when S is an odd number by the timing controller; and

changing the polarity of the plurality of pixels at the end time point of the last skip frame of the group when D is an odd number and S is an even number by the timing controller.

9. The method of claim 8 , further comprising changing the polarity of the pixels at the start time point of a first skip frame of the unit group by the timing controller.

10. The method of claim 9 , wherein the changing the polarity of the pixels at the start time point includes changing the polarity of the pixels in a rising of a skip frame enable signal which blocks a data signal corresponding to the one or more skip frames by the timing controller.

11. The method of claim 8 , further comprising changing the polarity of the pixels at a start time point of each of S number of skip frame of the unit group by the timing controller.

12. The method of claim 8 , wherein the maintaining the polarity of the pixels maintains the polarity of the pixels by the timing controller when the polarity of a last skip frame of a first group is same as that of the first display frame of a second group.

13. The method of claim 8 , wherein the changing the polarity of the pixels includes changing the polarity of the pixels in a falling of a skip frame enable signal by the timing controller in a falling of a skip frame enable signal to block to data signal corresponding to the one or more S number of skip frame.