| 摘要 |
<p>Disclosed is advertisement display apparatus using P4 light emitting diode. The advertisement display apparatus comprises: a frame adapted to fixedly support an advertisement display billboard thereon; an outer casing having a predetermined shape to display a certain advertisement pattern or character and fixedly mounted on the frame; a printed circuit board fixedly mounted on the bottom surface of the interior of the outer casing; at least one light source arranged on a corresponding position of the printed circuit board in such a manner as to be electrically connected thereto; a transparent epoxy material filled in the interior of the outer casing and adapted to fix the printed circuit board and the at least one light source in the outer casing; and a color epoxy material attached on the transparent epoxy material and adapted to hermetically seal the top surface of the outer casing for emission of light.</p> |
