| 摘要 |
PURPOSE: A power saving circuit of an image displayer is provided to interrupt an operation of a power unit in a power saving mode to interrupt entire operations of a system including a microcomputer, so as to minimize consumption power. CONSTITUTION: A microcomputer(20) operated by a power voltage supplied from a power unit(10) discriminates a power saving mode by a synchronous signal inputted from an external to output a digital power saving signal. A power saving signal detector(30) outputs an analog power saving signal of a high or a low level, by the digital power saving signal. A power saver(40) performs or interrupts an operation of the power unit(10) by the analog power saving signal. A synchronous signal detector(50) controls the power saver(40) by the synchronous signal if the power saving mode is converted into a normal mode, and temporarily performs the operation of the power unit(10).
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