Patent ID: 9135840
Filing Date: 2015-09-15
Classification: G02B,G09F

Abstract:
1. A multi-sectioned billboard-mounted light-emitting device, comprising; an engaging frame configured in such a way that a plurality of billboard accommodation spaces are selectively formed at its front side, one or multiple section bars are detachably inserted and engaged between an upper engaging part and a lower part which are horizontally provided upward and downward in a frame shape, and a lower accommodation groove is formed in a longitudinal direction at a back side of an upper surface of the lower part; a light emitting diode module which is positioned in an accommodated state while matching with an inner bottom surface of the lower accommodation groove of the lower part, and a printed circuit board having a corresponding length is provided at a lower side of a light guide plate, and a plurality of light emitting diodes (LED) are mounted at regular intervals on the upper surface of the printed circuit board; a light guide plate which is made from a transparent plate matching, to an inner side of the engaging frame, and a plurality of scanning lines are formed in cut states in horizontal and vertical directions at its back side, and the LEDs are installed close at the lower side, and lights from the LEDs travel along the scanning lines and are reflected and emit; a back plate which comes into close contact with the back side of the light guide plate and emits light from the light guide plate to the front side; and a billboard on which are printed various texts, images or photos and which is detachably accommodated in each billboard accommodation space in a certain site which is divided by a section bar of the engaging frame and is installed at a front side of the light guide plate.