| 摘要 |
Disclosed is a display apparatus comprising a display part displaying a video signal, comprising a memory storing a predetermined bar code data; a bar code show key for selecting the bar code data stored in the memory to be displayed; an on-screen display (OSD) part executing an on screen display for adjusting a displaying state of the display part; and a controller controlling the bar code data to be displayed on the display part through the on screen display part when the bar code data is selected by the bar code show key. With this configuration, a bar code is shown through an on screen display, so that it need not adhere a separate bar code to a display apparatus, and there is no need of apprehensions that the bar code is worn away or vanished.
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