| 摘要 |
A roller board display device includes a base having two lugs on a side thereof and two stubs extend from bottom of said base so that the display devices can be connected in series by inserting the stubs in the holes of lugs. A rest board is connected to said top surface of said base and a recess is defined in said rest board. One of the roller frame is engaged with the notch in the rest board and an end of the roller board is engaged with two recesses defined in a top surface of the base. A side of the roller board may also be engaged with the two recesses and the other side of the roller board is rested on the rest board.
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