Nec Display Solutions, Ltd.

Takuya Nakazawa

Hiroyuki Kasuga

A liquid crystal monitor includes a first voltage conversion circuit (e.g. a DC/DC converter), which converts an external DC voltage into a first internal DC voltage supplied to CPU circuitry, and a second voltage conversion circuit, which converts the external DC voltage into a second internal DC voltage for driving a backlight of a liquid crystal panel. The external DC voltage is set proximate to a center value between the first internal DC voltage and the second internal DC voltage. This allows the liquid crystal monitor to be equipped with a battery unit producing a single external DC voltage, thus reducing weight compared to a conventional liquid crystal monitor.

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Tokyo, Japan

Takuya Nakazawa