| 摘要 |
The present invention relates to a sign board. The sign board includes a screen which is attached to the front and back sides of the board, has a back light part installed to one side, and a light guide plate installed to the upper side of the back light part; a pillar part; a placard installation part which comprises a horizontal rod, an extension rod which is received in the horizontal rod and can be extended, and a vertical rod; and a placard which includes a support unit which has one end connected to the lower end of the pillar part by an insertion tube member and the other end fixed to the ground. According to the sign board with extended member for installing placard, a support unit which fixes a pillar part and a support part which are attached to the board, to the ground, is connected by a separate member. Thereby, it can be easily installed, disassembled, moved, reinstalled, and installs a vertical placard by a vertically installed extension rod. It has an illuminance sensor and a motion detecting sensor to react an access to a passerby or a change in the brightness of day and night, and controls the brightness, so that an advertisement effect can be improved. Also, the breakage of a sign board or the generation of safety accidents can be prevented by using a windshield support unit. |
