| 摘要 |
<p>A bar code reading device includes a code reading section (3) for reading a bar code attached to an article (7) by emitting a light beam through a window and receiving threrethrough the light beam reflected from the bar code, and a manual input section for inputting article information by operation of a keyboard. In the bar code reading device, the manual input section includes a transparent liquid crystal display panel (10), a transparent touch sensor panel (20) disposed on the liquid crystal display panel (10), and a control circuit (31, 32, 34, 35) for selectively setting one of amnual input mode and a automatic reading mode, driving the liquid crystal dispaly panel (10) so as to display an image of keyboard in the manual input mode and to erase the image of keyboard in the automatic reading mode, and reading key-in data entered by toughing portions of the touch sensor panel (20) with reference to the image of the dispalyed keyboard in the manual input mode. The light beam can be transmitted via the liquid crystal display panel (10) and the touch sensor panel (20) in the automatic reading mode.</p> |
