Driving method of in-plane-switching mode LCD

1. A method of driving a liquid crystal display (LCD) panel, comprising:

applying a common voltage to a common electrode of the LCD panel, the LCD panel including a liquid crystal (LC) cell including a pixel electrode;

sequentially applying a gate signal voltage to a gate line of the LCD panel;

alternately applying a first data signal voltage and a second data signal voltage to a data line every a frame, wherein the first data signal voltage and the second data signal voltage have an opposite polarity each other;

applying a first compensation voltage to the pixel electrode for a first period of a present frame, wherein the first period is the high level state of the gate signal voltage;

applying a first data signal voltage for a second period of a present frame after the applying the first compensation voltage to the pixel electrode, wherein a voltage difference between the first compensation voltage and the common voltage is greater than a voltage difference between the first data signal voltage and the common voltage; and

applying a second compensation voltage different from the first compensation voltage to the pixel electrode during a third period of the present frame after applying the first data signal voltage to the pixel electrode and before a next frame following the present frame,

wherein the second data signal voltage is applied to the data line from the third period of the present frame,

wherein the second compensation voltage has an opposite polarity of the first data signal voltage and the second compensation voltage is applied to a data line before applying the next gate signal voltage for the next frame,

wherein the second compensation voltage has an absolute value greater than the second data signal voltage.

2. The method according to claim 1 , wherein a magnitude of the first compensation voltage is greater than the first data signal voltage.

3. The method according to claim 1 , wherein a magnitude of the second compensation voltage is less than that of the second data signal voltage.

4. The method according to claim 1 , wherein a polarity of the first compensation voltage is the same as a polarity of the first data signal voltage.

5. The method according to claim 1 , wherein a polarity of the first compensation voltage is opposite to a polarity of the second compensation voltage.

6. The method according to claim 1 , wherein the first compensation voltage is applied during application of a first gate signal voltage to a gate line.

7. The method according to claim 1 , wherein the first compensation voltage is applied for a different amount of time than the second compensation voltage.

8. The method according to claim 7 , wherein the first compensation voltage is applied for a larger amount of time than the second compensation voltage.

9. The method according to claim 1 , further comprising: generating an electric field between the pixel electrode and the common electrode formed on first and second substrates, wherein the electric field is oriented perpendicularly with respect to a major surface of the first and second substrates; and moving liquid crystal molecules of a liquid crystal layer along a plane parallel to the major surface of the first and second substrates in the presence of the electric field.

10. The method according to claim 9 , wherein moving the liquid crystal molecules of the liquid crystal layer includes modifying the structure of alignment layers adjacent to the liquid crystal layer in the presence of the electric field.

11. The method according to claim 9 , wherein the alignment layers include ferroelectric liquid crystal polymer.

12. The method according to claim 9 , wherein the liquid crystal layer is a negative type liquid crystal layer.