LIQUID CRYSTAL DISPLAY DEVICE AND CONTROL METHOD OF LIQUID CRYSTAL DISPLAY DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a liquid crystal display device minimizing a time to generate a positive or negative difference for an intermediate voltage in a gradation reference voltage which forms an alternate driving voltage when the alternate driving voltage is changed during device operation by changing the order of outputting the gradation reference voltage generated by an order switching method into the optimum order, with respect to the liquid crystal display device which adopts an alternate driving method. SOLUTION: In the liquid crystal display device of an alternate driving method, an output switching control part 11 which supplies the gradation reference voltage to a source driver IC2 in an output order of the gradation reference voltage inputted by being successively switched from the same output voltage setting part 7 different from the input order is disposed on a gradation reference voltage generation part 4A. The control part 11 performs control to minimize a time to generate a positive or negative difference for an optimized intermediate voltage Vcom in a gradation reference voltage which forms an alternate driving voltage to be inputted to the source driver IC2 when the alternate driving voltage is changed during device operation. COPYRIGHT: (C)2008,JPO&INPIT