Patent ID: 8755004

Claim:
A liquid crystal display device comprising: a liquid crystal display panel; a light source configured to emit light toward the liquid crystal display panel; a first diffusion sheet configured to scatter the light from the light source; a converging sheet disposed on the first diffusion sheet and configured to converge the scattered light; a second diffusion sheet disposed on the converging sheet and configured to have a haze range of about 10%˜40% and to improve visibility of the liquid crystal display panel in accordance with a viewing angle; and a lower polarizer plate on a lower surface of the liquid crystal display panel, wherein an alignment axis of the second diffusion sheet is set within an error range of ±10° to a polarization axis of the lower polarizer plate, wherein the alignment axis is defined as a direction parallel to an extrusion direction of a roller-extruder which is used in the formation of the second diffusion sheet, wherein the second diffusion sheet includes: a base layer, an upper diffusion layer formed on an upper surface of the base layer, and a lower diffusion layer formed on a lower surface of the base layer, wherein the upper diffusion layer includes a plurality of multi-dispersed-beads, wherein the lower diffusion layer includes a plurality of mono-dispersed-beads, wherein the base layer is formed from polyamide or polyimide, and wherein the haze range of about 10%˜40% is obtained based on a content of the plurality of multi-dispersed-beads in the upper diffusion layer.