To prevent a display panel from being oscillated and easily falling down even when force is applied to the panel by supporting the panel by supports.

The supporting board 9 is constituted of a mount 10 for putting the bottom part of a notebook type personal computer(PC) 1 provided with a liquid crystal panel 3 on its surface and fixing its position by the weight of the PC 1, a 1st support 11 connected to the mount 10, forming a key hole on the other end and capable of supporting the rear face of the opened panel 3 and a 2nd support 12 connected to the mount 10, forming a key part 17 to be inserted into the key hole 14 on the other end, allowed to be fixed on the 1st support 11 by inserting the key part 17 into the key hole 14 and capable of supporting the 1st support 11.