Display apparatus and method of driving the same

1. A display apparatus comprising:

a display panel configured to display an image, the display panel comprising a gate line and a data line;

a gate driving part configured to output a gate signal to the gate line; and

a data driving part configured to output a data signal to the data line, and to change a transition time defined as a time duration in which the data signal transits from a low level to a high level,

wherein the transition time is adjusted to be increased or decreased according to at least one of a change of an inversion method for driving the display panel, and a change of a frame frequency of the image.

2. The display apparatus of claim 1 , wherein the inversion method comprises:

a column inversion method in which polarities of the data signal applied to the data line are alternately inverted in a plurality of frame periods; and

a dot inversion method in which the polarities of the data signal applied to the data line are inverted in each of the frame periods.

3. The display apparatus of claim 2 , wherein, in response to a change of the inversion method from the column inversion method to the dot inversion method, the data driving part is configured to change the transition time of the data signal from a first time to a second time having a duration which is less than the first time.

4. The display apparatus of claim 3 , wherein the data driving part is configured to maintain the transition time of the data signal as the second time during a first period, and the first period comprises H (H is a natural number) frame periods.

5. The display apparatus of claim 4 , wherein:

the data driving part is configured to, after the first period, change the transition time of the data signal from the second time to a third time having a duration which is less than the first time and greater than the second time, and maintain the transition time of the data signal as the third time during a second period following the first period; and

the second period comprises I (I is a natural number) frame periods.

6. The display apparatus of claim 5 , wherein:

the data driving part is configured to, after the second period, change the transition time of the data signal from the third time to the first time, and maintain the transition time of the data signal as the first time during a third period following the second period; and

the third period comprises J (J is a natural number) frame periods.

7. The display apparatus of claim 2 , wherein, in response to a change of the inversion method from the dot inversion method to the column inversion method, the data driving part is configured to change the transition time of the data signal from a first time to a fourth time having a duration which is greater than the first time.

8. The display apparatus of claim 7 , wherein the data driving part is configured to maintain the transition time of the data signal as the fourth time during a fourth period, and the fourth period comprises K (K is a natural number) frame periods.

9. The display apparatus of claim 8 , wherein:

the data driving part is configured to, after the fourth period, change the transition time of the data signal from the fourth time to a fifth time having a duration which is greater than the first time and less than the fourth time, and maintain the transition time of the data signal as the fifth time during a fifth period following the fourth period; and

the fifth period comprises L (L is a natural number) frame periods.

10. The display apparatus of claim 9 , wherein:

the data driving part is configured to, after the fifth period, change the transition time of the data signal from the fifth time to the first time, and maintain the transition time of the data signal as the first time during a sixth period following the fifth period; and

the sixth period comprises M (M is a natural number) frame periods.

11. The display apparatus of claim 10 , wherein, when the frame frequency is changed from a first frequency to a second frequency higher than the first frequency, the data driving part is configured to change the transition time of the data signal from a first time to a second time having a duration which is less than the first time.

12. The display apparatus of claim 11 , wherein:

the data driving part is configured to maintain the transition time of the data signal as the second time during a seventh period; and

the seventh period comprises P (P is a natural number) frame periods.

13. The display apparatus of claim 12 , wherein:

the data driving part is configured to, after the seventh period, change the transition time of the data signal from the second time to the third time having a duration which is less than the first time and greater than the second time, and maintain the transition time of the data signal as the third time during an eighth period following the seventh period; and

the eighths period comprises Q (Q is a natural number) frame periods.

14. The display apparatus of claim 13 , wherein:

the data driving part is configured to, after the eighth period, change the transition time of the data signal from the third time to the first time, and maintain the transition time of the data signal as the first time during a ninth period following the eighth period; and

the ninth period comprises R (R is a natural number) frame periods.

15. The display apparatus of claim 1 , wherein, in response to a change of the frame frequency from a second frequency to a first frequency less than the first frequency, the data driving part is configured to change the transition time of the data signal from a first time to a fourth time having a duration which is greater than the first time.

16. The display apparatus of claim 15 , wherein the data driving part is configured to maintain the transition time of the data signal as the fourth time during a tenth period, and the tenth period comprises S (S is a natural number) frame periods.

17. The display apparatus of claim 16 , wherein:

the data driving part is configured to, after the tenth period, change the transition time of the data signal from the fourth time to the fifth time having a duration which is greater than the first time and less than the fourth time, and maintain the transition time of the data signal as the fifth time during an eleventh period following the tenth period; and

the eleventh period comprises T (T is a natural number) frame periods.

18. The display apparatus of claim 17 , wherein:

the data driving part is configured to, after the eleventh period, change the transition time of the data signal from the fifth time to the first time, and maintain the transition time of the data signal as the first time during a twelfth period following the eleventh period; and

the twelfth period comprises U (U is a natural number) frame periods.

19. A method of driving a display apparatus comprising a display panel comprising a gate line and a data line, the method comprising:

outputting a gate signal to the gate line of the display panel; and

outputting a data signal to the data line, by changing a transition time defined as a time duration in which the data signal transits from a low level to a high level,

wherein the transition time is adjusted to be increased or decreased according to at least one of a change of an inversion method for driving the display panel, and a change of a frame frequency of the image.

20. The method of claim 19 , wherein the changing the transition time comprises:

changing the transition time, in response to a change of the inversion method from a column inversion method in which polarities of the data signal applied to the data line are alternately inverted in a plurality of frame periods, to a dot inversion method in which the polarities of the data signal applied to the data line are inverted in each of the frame periods;

changing the transition time in which the inversion method is changed from the dot inversion method to the column inversion method;

changing the transition time in which the frame frequency is changed from a first frequency to a second frequency greater than the first frequency; and

changing the transition time in which the frame frequency is changed from the second frequency to the first frequency.