LIGHT CONTROL FILM, DISPLAY DEVICE, AND METHOD FOR MANUFACTURING LIGHT CONTROL FILM

摘要

A light control film includes a light shielding layer and a light diffusion portion, and, when an area of a part where the light shielding layer is in contact with one surface of the base material is set to S1, and an area of a part where a low refractive index portion is exposed between light incidence end surfaces is set to S2, the light shielding layer and the light diffusion portion are formed so as to satisfy (S1−S2)/S1×100≧50.

主权项

1. A light control film comprising at least:
a light-transmissive base material; a light diffusion portion that is disposed in a partial region which makes up part of one surface of the base material; and a light shielding layer that is disposed in a remaining region excluding the partial region, wherein the light diffusion portion is formed so as to be thicker than the light shielding layer between a light emission end surface which is in contact with one surface of the base material and a light incidence end surface which is separated from the light emission end surface in a thickness direction, and an area of the light emission end surface is smaller than an area of the light incidence end surface, wherein a low refractive index portion which is filled with a material having a refractive index lower than a refractive index of a material forming the light diffusion portion is formed in a space partitioned by the light shielding layer and outer circumferential surfaces of the light diffusion portion, and wherein the light shielding layer and the light diffusion portion are formed in a shape satisfying Expression (1) when an area of a part where the light shielding layer is in contact with one surface of the base material is set to S1, and an area of a part where the low refractive index portion is exposed between the light incidence end surfaces is set to S2
[Math. 1](S1−S2)/S1×100≧50  Expression (1).