| 摘要 |
PROBLEM TO BE SOLVED: To provide a driving circuit for the liquid crystal display device based on dot inversion system whose size is miniaturized by using a type of a DAC(digital-to-analog converter). SOLUTION: This driving circuit is constituted of first and second data latching parts 21, 22 which successively latches source data, a DAC 23 which converts the data latched in the second data latching part 22 into an analog signal and outputs a signal Vin1 having a first polarity, a driving signal processing part 24 which receives the output signal Vin1 of the DAC 23 and outputs a signal Vout having a second polarity whose polarity is reverse to the first polarity, a MUX (system multiplex) 25 which outputs either the signal Vin1 or the signal Vout by a polarity signal and a buffer 26 which buffers the output signal of the MUX 25 and applies the buffered signal on cells of a liquid crystal display device as a source driving signal.
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