| 摘要 |
A backlight unit and a liquid crystal display device including the same for improving the deformation of an optical sheet for image quality improvement are provided to form the liquid crystal display device on the circumference area of the diffusing plate. A plurality of light sources(150) is arranged as the regular interval. A spreading plate is arranged on a plurality of light sources. The spreading plate diffuses the light. An optical sheet(130) is arranged on the spreading plate. The spreading plate is comprised of the side wall. The side wall is perpendicularly bent from the peripheral region. A plurality of ribs compensates for being bent from the side wall the inner side of the spreading plate of the spreading plate. The optical sheet forms a holding recess in the peripheral area. The accommodating groove accommodates rib. |
