| 摘要 |
There is provided a low power consumption liquid crystal driving circuit which is able to achieve reduction in the power consumption. In this liquid crystal driving circuit, first charges are supplied to a charge pump capacitor 11 by connecting one end of the capacitor 11 to an output of a first regulator and other end of the capacitor 11 to an output of the second regulator. Then, the capacitor 11 can be connected in parallel with any one of charge storage capacitors 12 to 15 by controlling ON/OFF of analogue switches 16 to 25 based on the time division signals phi A to phi E. Then, charges in the capacitor 11 are supplied to the selected charge storage capacitor to generate a liquid crystal driving intermediate potential.
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