BACK LIGHT FOR DISPLAY DEVICE

摘要

Provided is a backlight unit for a display device. The backlight unit includes a transparent light guide panel having a lower surface with a pattern forming unit in which a prism pattern is formed as grooves, a light source disposed on a side of the light guide panel, a reflection plate disposed under the light guide panel, wherein depths and/or a density of the grooves in the prism pattern consecutively increase close to electrodes of the light source in a length direction of the light source.