| 摘要 |
An exemplary power supply circuit ( 200 ) for a liquid crystal display device ( 2 ) includes a switch control circuit ( 28 ) for receiving a control signal from an external control circuit, the control signal controlling the turning on or turning off of the switch control circuit; a first DC/DC converter ( 27 ) for adjusting the direct current voltage from an external circuit, outputting an output voltage. The switch control circuit controls switches the power supply of the output voltage to a liquid crystal display panel ( 20 ) of the liquid crystal display device.
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