Patent ID: 9194992
Filing Date: 2015-11-24
Classification: G02B

Abstract:
1. A light guide plate comprising: a light introducing portion configured to confine light that is incident from an end surface; and a light guide-plate main body configured to emit incident light to an outside from a light emitting surface and provided continuously with the light introducing portion in a thickness smaller than a maximum thickness of the light introducing portion, wherein the light introducing portion comprises an inclined surface inclined toward the light guide-plate main body from a surface comprising a larger thickness than a thickness of the light guide-plate main body, on at least one of a surface at a light emission side and a surface opposite to the surface at the light emission side, wherein the light introducing portion comprises a directional transform pattern comprising stripe-shaped pattern elements on at least one of the surface at the light emission side and the surface opposite to the surface at the light emission side, and wherein light reflecting portions are provided on the light guide-plate main body in a region from the light introducing portion to a portion adjacent to the light introducing portion when viewed from a side.