Patent ID: 8659739
Filing Date: 2014-02-25
Classification: G02B,G02F,H04N

Abstract:
1. A liquid crystal lens comprising; a first electrode and a second electrode which face each other; a liquid crystal layer interposed between the first electrode and the second electrode, wherein the liquid crystal layer has a flat top surface and a flat bottom surface; and a dielectric layer interposed between the second electrode and the liquid crystal layer, wherein the dielectric layer comprises a first dielectric sub-layer and a second dielectric sub-layer, the first dielectric sub-layer is made of a material having a different dielectric constant from that of a material that forms the second dielectric sub-layer, the first dielectric sub-layer comprises one or more unit patterns, wherein each of the unit patterns defines a unit lens section which exhibits an optical characteristic, wherein a surface of each of the unit patterns comprises a plurality of flat sections, and a height of each of the unit patterns in a first flat section among the flat sections is different from the height thereof in a second flat section.