| 摘要 |
PROBLEM TO BE SOLVED: To realize low power consumption while maintaining the current driving ability in a driving circuit for liquid crystal display device. SOLUTION: Selective active control is applied to amplifiers, OP1 to OP5, which output plural driving voltage levels for driving a liquid crystal display device. In this case, at the rise time (shift from the non-active state to the active state) of an amplifier, control signals, OFF1 and OFF2, are generated from a control circuit 200 so that the amplifier rises with time necessary for amplifier setup and thereby selective active control of each amplifier of OP1 to OP5 can be made. |
