| 摘要 |
An LED signboard is provided to obtain a uniform brightness on a shinning surface by irradiating the shinning surface using the light, which is reflected in on panel. An LED(Light Emitting Device) signboard includes a channel(100). An inner portion of the channel is made by using a material with a high reflection index. The light, which is emitted from at least one LED module(120), is reflected inside the channel, such that the reflected light irradiates a shinning surface(110) on the channel. A slant surface is formed at a side surface of a case(130). The slant surface is fixed on a bottom surface of the channel. Two slant surfaces, which are formed at both sides of the case, are formed with different slanting angles. A paint containing glass beads is used to coat the inner portion of the channel. |
