To provide a panel capable of improving display quality, enhancing an added value, and also arousing customer's purchasing interest by sticking sheets of front protective paper and back protective paper of almost the same material on both of the front and back sides of an entire board, and expressing a display peculiar to the panel with an original display part and a decorative display part.

This single operation panel has a size for exhibiting various exhibits like pictures, drawings, etc. And an original space part 2 is projectingly arranged to be continued outside from the periphery of a board main body part 1, and an original display part 7 of a dog character is printed on this original space part 2. At the same time, a decorative display part 8 such as borne patterns and advertisements is printed and thereby a background of exhibits 16 is formed of the original space part 2, the original display part 7, and the decorative display part 8. And, since this panel A is constructed by sticking sheets of front protective paper and back protective paper of almost the same material on both of the front end back sides of the board main body part 1 and the original space part 2, a warp is eliminated in the board.