LIQUID CRYSTAL DISPLAY DEVICE AND DRIVING METHOD THEREOF, OVER-DRIVE CORRECTION DEVICE AND DATA PRODUCTION METHOD THEREOF AND ELECTRONIC DEVICE

1 . A driving method for a liquid crystal display device, wherein the driving method comprises performing an over-drive operation in the liquid crystal display device by using a lookup table, and the driving method is characterized by:

disposing a dummy liquid crystal unit in the liquid crystal display device; and

correcting data of the lookup table according to gray-level data of the dummy liquid crystal unit.

2 . The driving method as claimed in claim 1 , wherein the gray-level data of the dummy liquid crystal unit is determined by detection data of a detector embedded in the liquid crystal display device.

3 . The driving method as claimed in claim 2 , wherein the detector is a liquid crystal capacitive sensor for detecting a capacitance of the dummy liquid crystal unit.

4 . The driving method as claimed in claim 3 , wherein the data of the lookup table is corrected according to a mapping table, and the mapping table is established by the detected capacitance by the liquid crystal capacitive sensor and gray-level data corresponding to the detected capacitance.

5 . The driving method as claimed in claim 1 further comprising continuously determining an over-drive time according to response time from a gray-level of the lowest voltage value to a gray-level of the highest voltage value during a liquid crystal driving process.

6 . An over-drive correction device for performing an over-drive operation in a liquid crystal display device by using a lookup table, comprising:

a dummy liquid crystal unit disposed in the liquid crystal display device;

a detector for detecting a state of the dummy liquid crystal unit; and

a correction device for correcting data of the lookup table according the detection result generated from the detector.

7 . The over-drive correction device as claimed in claim 6 further comprising a prediction lookup table for storing predicted over-drive gray-level data, wherein the correction device corrects the data of the prediction lookup table according to the detection result generated from the detector.

8 . The over-drive correction device as claimed in claim 6 , wherein the detector is a liquid crystal capacitive sensor for detecting a capacitance of the dummy liquid crystal unit.

9 . The over-drive correction device as claimed in claim 8 , wherein liquid crystal capacitive sensor is formed by a polysilicon transistor circuit and disposed on glass of the liquid crystal display device.

10 . A data production method applied in an over-drive correction device as claimed in claim 9 for producing data for correction, comprising:

determining an over-drive time according to a liquid crystal response time required for variation of a gray-level voltage of the dummy liquid crystal unit from the lowest voltage value to the highest voltage value;

establishing a mapping table according to the variation of the gray-level voltage of the dummy liquid crystal unit from the lowest voltage value to the highest voltage value, wherein the mapping table comprises a capacitance of the dummy liquid crystal unit and gray-level data corresponding to the capacitance; and

correcting the data of the lookup table according to the mapping table by the correction device.

11 . The data production method as claimed in claim 10 further comprising correcting the data of the prediction lookup table by the correction device.

12 . A liquid crystal display device comprising:

an over-drive correction device as claimed in claim 6 for performing an over-drive operation.

13 . An electronic device comprising:

a liquid crystal display device as claimed in claim 12 , wherein the electronic device is one of a cellular phone, a digital camera, a personal digital assistant (PDA), an aviation displayer, an automotive displayer, a digital photo frame, a portable DVD displayer.