| 摘要 |
Discrimination means (53), receiving a DDC transmission request from an external computer through DDC control means (55), judges whether a video signal inputted from the computer is a signal of analog specification or digital specification from an analog channel input detection signal from an analog synchronizing signal detection means (52). On the basis of the judgment result, the discrimination means (53) controls the DDC control means (55), input channel switching means (56) and OSD switching means (57) to switch EDID data, an input channel and OSD into ones supporting the specification of the video signal, respectively. In a display monitor having a DDC function which includes a DVI-I connector, with the above constitution, a correct setting of the input channel, EDID data and the like is automatically made in accordance with the specification of the input signal.
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