| 摘要 |
PURPOSE: An advertisement structure is provided to safely protect light emitting devices from external danger. CONSTITUTION: A channel member(100) includes a space. A light emitting device(104) is arranged on the space. A light diffusing layer(106) is composed of a light diffusing filler. The light diffusing filler covers a part of the light emitting device. The light emitting device includes one red LED, one green LED, and at least one blue LED. White paint is coated on the inner wall of the channel member.
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