Patent ID: 8119945
Filing Date: 2012-02-21
Classification: G02B,G06F,H01H

Abstract:
1. A self-illumination circuit board, comprising: a substrate structure; a circuit layer embedded in said substrate structure and carrying a circuit layout; side-emitting light source means mounted in said substrate structure and electrically connected to said circuit layout for emitting light sideways; and light guide means embedded in said substrate structure and respectively disposed adjacent to said side-emitting light source means for uniformly distributing light emitted from said side-emitting light source means over respective light exit surfaces thereof; wherein said substrate structure comprises a relatively thinner upper substrate and a relatively thicker bottom substrate arranged in a stack; said circuit layer is sandwiched between said relatively thinner upper substrate and said relatively thicker bottom substrate; said light guide means is set in between said relatively thicker bottom substrate and said circuit layer and adapted to distribute light emitted from said light source means over said circuit layer and said relatively thinner upper substrate.