Optical device

Abstract

The present application relates to an optical device, comprising: a first outer substrate; a liquid crystal cell and a second outer substrate sequentially, wherein the liquid crystal cell comprises an upper substrate including a first base layer and a pressure-sensitive adhesive layer; a lower substrate including a second base layer and spacers; and a liquid crystal layer including a liquid crystal compound between the upper substrate and the lower substrate, and the optical device further comprises: a first intermediate layer between the first outer substrate and the liquid crystal cell, and a second intermediate layer between the second outer substrate and the liquid crystal cell, wherein the optical device of the present application can properly maintain a cell gap of a liquid crystal cell, have excellent adhesion between an upper substrate and a lower substrate, and solve the pressing and overflow phenomena of the liquid crystal cell during bonding with an outer substrate.