Patent ID: 9182624
Filing Date: 2015-11-10
Classification: C09K,G02F

Abstract:
1. A liquid crystal cell, comprising: a liquid crystal layer, comprising: a polymer network; and a region which is in the polymer network including a crosslinked or polymerized product of a precursor material of the polymer network, and which comprises a liquid crystal compound which does not have a polymerizable or crosslinkable group and a dichroic dye having a dichroic ratio of 7 or more in at least a part of a wavelength range of a visible region, wherein the liquid crystal compound and the dichroic dye are convertible between a homogeneous alignment state and a homeotropic alignment state, wherein when the liquid crystal compound and the dichroic dye in the liquid crystal cell are homogeneously aligned, an in-plane retardation (R