| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid crystal drive circuit device whose power consumption is redcuced. SOLUTION: This device has a means 50 for generating the AC components of a drive signal, a capacitive element 3 whose end part of one side is connected to the means 3, a current-limiting means 2 whose end part of one side is connected to another end part of the element 3 and means 52 and 53 which have an output part, connected to another end part of the means 2 and which generates the DC component of the drive signal. In the devie, the capacitive element 3 eliminates the DC component of the output signal from the means 50 generating the AC component and the current-limiting means 2 limits the current which is generated by the voltage difference between a voltage at the other end part of the element 3 and the voltage of the output part, and moreover, the amplitude value of the AC components from the means 50 generating the AC components and the amplitude value of the AC components of the signal from the output part of the means 52 and 53 generating the DC components are nearly equal.
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