Driving method including refreshing a pixel memory and liquid crystal display device utilizing the same

1. A driving method for a liquid crystal display device comprising at least one pixel comprising a switching element, a liquid crystal component, and a memory, wherein the switching element is controlled to determine whether transmit a voltage to the liquid crystal component, and when the switching element is turned off, the memory stores the voltage to control optical transmittance or reflectance of the liquid crystal display device, comprising:

during a predetermined time period, executing a first refreshing action for the memory, wherein the first refreshing action repeatedly refreshes the memory by an even number of transitions with a timing interval in which the liquid crystal component does not react to changes;

after the predetermined time period, executing a second refreshing action, wherein the second refreshing action refreshes the memory by an odd number of transitions; and

repeatedly and alternately executing the first and the second refreshing actions,

wherein the liquid crystal component is disposed between a pixel electrode and a common electrode, and during the predetermined time period, a pixel voltage of the pixel electrode and a common voltage of the common electrode are repeatedly performed by even amounts of continuous inversion operations with the timing interval.

2. The driving method as claimed in claim 1 , wherein the predetermined time period is longer than the time period for executing the second refreshing action.

3. The driving method as claimed in claim 1 , wherein the predetermined time period is equals to 1 sec or longer than 1 sec.

4. The driving method as claimed in claim 1 , wherein the time interval in which the liquid crystal component does not react to changes corresponds to a period in which no voltage difference is applied to the liquid crystal component.

5. The liquid crystal display device as claimed in claim 1 , wherein the timing interval is less than reaction time of the liquid crystal component.

6. The liquid crystal display device as claimed in claim 5 , wherein the timing interval is approximately 1 millisecond.

7. A liquid crystal display device, comprising:

a liquid crystal component,

a switching element selectively transmitting a voltage to the liquid crystal component, wherein the voltage is transmitted to the liquid crystal component when the switching element is turned on, and the voltage is not transmitted to the liquid crystal component when the switching element is turned off;

a memory maintaining the voltage transmitted to control optical transmittance or reflectance of the liquid crystal display device when the switching element is turned off;

a repeating and alternating unit repeatedly and alternately executing a first refreshing action and a second refreshing action, wherein the first refreshing action repeatedly refreshes the memory by an even number of transitions with a timing interval in which the liquid crystal component does not react to changes, and the second refreshing action refreshes the memory by an odd number of transitions,

wherein the liquid crystal component is disposed between a pixel electrode and a common electrode, and during the predetermined time period, a pixel voltage of the pixel electrode and a common voltage of the common electrode are repeatedly performed by even amounts of continuous inversion operations with the timing interval.

8. The liquid crystal display device as claimed in claim 7 , wherein the predetermined time period is longer than the time period for executing the second refreshing action.

9. The liquid crystal display device as claimed in claim 8 , wherein the predetermined time period is equals to 1 sec or longer than 1 sec.

10. The liquid crystal display device as claimed in claim 7 , wherein the time interval in which the liquid crystal component does not react to changes corresponds to a period in which no net voltage difference applied to the liquid crystal component.