Patent ID: 7859614

Claim:
A liquid crystal display device comprising: a lower cover; PCBs (Printed Circuit Boards) disposed on the lower cover for receiving power from the exterior; a main body mounted on the PCBs; R, G and B LED (Light Emitting Diode) devices disposed on the main body for emitting light; a first lens having a first curvature and being mounted on the main body and housing the R, G and B LED devices; a second lens covering an outside of the first lens, and having an inner curved surface with a second curvature having a varying radius of curvature, and an outer curved surface with a third curvature, wherein the second curvature of the inner curved surface is gradually increased from an edge portion thereof toward a central portion thereof; and a liquid crystal panel spaced apart from the second lens with a certain interval and to which light is provided, wherein the distance between the first lens and the inner curved surface of the second lens is increased from the edge portion thereof toward the central portion thereof and the distance between the outer curved surface of the first lens and the outer curved surface of the second lens is identical in the whole surface area of the first lens and the second lens.