| 摘要 |
PURPOSE: An advertising board which expresses large size letters or figures using few light emitting diodes is provided to obtain an outstanding advertisement by uniformly expressing the light and shade. CONSTITUTION: An advertisement(120) including letters or figures is formed on a panel(110). The advertisement includes dots on the panel. The dots are upwardly protruded from the panel. A coating layer is formed on the dot. Frames include a back frame(145), an upper frame(141), a lower frame and side frames(143,144). A light emitting diode module is fixed on the frames. An LED module which is installed beside the dots radiates a light. |
