| 摘要 |
PURPOSE: A signboard is provided to improve the visibility of advertisement by installing a light emitting unit, in which light source units are wholly or partially operated, to one side of a panel. CONSTITUTION: A light emitting unit(200) is installed to one side of a panel(100). Light source units(210), which are the combination of RGB light emitting diodes, are installed in the light emitting unit. An adjusting unit(300) is installed to the front side of the light emitting unit. An operating bar(330) with a plurality of lenses(310) is installed to an operating unit(350). A controlling unit(400) controls the operating unit and the power of the light source units. |
