| 摘要 |
PURPOSE: A liquid crystal display is provided to reduce the size of a control PCB(Printed Circuit Board) by installing some or whole portion of a DC-DC converter in a spare space of a source PCB. CONSTITUTION: A DC-DC converter(15) is mounted on a source PCB(Printed Circuit Board)(31A), and only first voltage control circuit of the DC-DC converter is mounted on the source PCB. Two out of the first to fifth voltage control circuits of the DC-DC converter are mounted on the source PCB. The connection method between a system board and a control PCB(32) or the system board and the source PCB are variously designed.
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