Patent ID: 9176269
Filing Date: 2015-11-03
Classification: G02B

Abstract:
1. A light source module, comprising: a light guide plate having an upper surface, a lower surface, a light incident surface, a light emitting region and a periphery region around the light emitting region, the light guide plate having a plurality of grooves disposed on at least one of the upper surface and the lower surface and extending in a direction from the light incident surface towards the light emitting region and crossing the periphery region into the light emitting region, wherein lengths of the grooves are smaller than a length of the light guide plate, and the lengths of extensions for the grooves which disposed on at least one of the upper surface and the lower surface are not all the same; and a light source disposed on the light incident surface of the light guide plate, and the grooves of the light guide plate are disposed beside the light incident surface, wherein any two adjacent grooves of the grooves on the same surface of the light guide plate are not connected to each other.