Patent ID: 9411164
Filing Date: 2016-08-09
CPC Classification: G02B,G02F

Claim Text:
1. An optical filter which is used to control a signal for a right eye and a signal for a left eye to have different polarized states from each other, wherein the signals for the right eye and for the left eye are emitted from a stereoscopic image display device comprising a display part comprising signal generating regions for a right eye and a left eye configured to generate the signals for the right eye and left eye; and a first light transmission control region adjacent to the signal generating regions for the right eye and the left eye, and which comprises a liquid crystal layer having first and second regions adjacent to each other which are capable of dividing incident light into at least two kinds of lights having different polarized states and emitting the divided lights; and a second light transmission control region in the boundary between the first and second regions, wherein the second light transmission control region is formed so that the maximum value of an angle “θ wherein the stereoscopic image display device to which the optical filter is applied has a relative brightness of 60% or more when observed from front, wherein the relative brightness refer to a ratio of brightness I where H wherein the optical filter further comprises a base layer, the liquid crystal layer is formed on the base layer, at least a part of the liquid crystal layer is contacted with the base layer, and the second light transmission control region is between the base layer and the liquid crystal layer, or on the liquid crystal layer's surface, opposite to the surface on which the base layer is formed, and wherein H