| 摘要 |
<p>The present invention relates to a lighting structure of an advertising sign, the invention comprising: a rear case fixedly attached to a wall surface; a front case installed to the rear case to be opened and closed; an advertising surface fixated and installed on an entire surface of the front case; and a plurality of LEDs installed inside the front case and the rear case. The lighting structure for an advertising sign is configured to brightly illuminate the advertising surface by using the plurality of LEDs as a light source wherein an inner frame is installed inside the front case such that the inner frame in a state of being assembled in a square supports the advertising surface to attain a tight state, a reflection plate is fixedly installed in the inner frame on an opposite surface facing the advertising surface, printed circuit boards, which have a plurality of LEDs installed and arranged at regular intervals, are installed to face other between the reflection plate and the advertising surface, the printed circuit boards are installed in a position where the plurality of LEDs are 2 to 30 mm away from the reflection board so as to emit a light to the direction facing each other, and the invention is configured to illuminate the advertising surface in the same brightness by way of an interference of the lighting emitted from each of adjacent LEDs and a reflection of the reflection plate.</p> |
