| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to switching between display contents or product specifications and normally display completely different display devices only by replacing the display devices even without using a manual change-over means such as an electronic circuit. SOLUTION: Terminals 2a for a display contents control signal or a product specification control signal of an integrated circuit 2 are all connected with a pattern 1c corresponding to a circuit substrate 1; a pattern 1d for the display contents control signal or the product specification control signal is arranged together with a display device driving signal pattern 1a; a signal is inputted to the display device 3 or another display device via a connection member 5 such as a connector; and thereby it eliminates the need for manufacturing and controlling plural kinds of electronic circuits mounted with the integrated circuit 2 and eliminates a soldering pattern and a switch member 7 for switching between the display contents or the product specifications from the circuit substrate 1. |
