Patent ID: 8540412

Claim:
A light guide plate comprising: a light incident surface to which light is incident as incident light; an opposite surface formed opposite to the light incident surface; a light emitting surface through which the incident light is emitted; a rear surface formed opposite to the light emitting surface and including a prism pattern to reflect the incident light to the light emitting surface; and lateral surfaces, wherein a diffuse reflection pattern is formed on at least any one of the light emitting surface and the lateral surfaces to diffuse-reflect light incident to the lateral surfaces, thus rendering a brightness adjacent both the opposite surface and the light incident surface substantially uniform, wherein the rear surface further comprises at least one reflection pattern formed in a prism shape spaced apart from and interposed between prism lines defining the prism pattern to reflect light to the light emitting surface, wherein the reflection pattern has a height from the rear surface different from a height of the prism lines defining the prism pattern from the rear surface.