Backlight units and display devices including the same

摘要

A display device includes a display panel which displays an image, a backlight unit which supplies the display panel with light, an upper cover, and a lower cover. The upper and lower covers accommodate the display panel and the backlight unit. The backlight unit includes light guide plates spaced apart from each other, a light source part, an optical member and an optical diffusion member overlapping a space between the light guide plates. The optical diffusion member includes a diffusing part and a supporting part. The diffusing part faces the optical member, overlaps the space between the light guide plates, and diffuses light emitted from the light source part toward the optical member through the space between the light guide plates. The supporting part protrudes from a surface of the diffusing part which is opposite to the optical member, and is in a space between the light sources.

主权项

1. A backlight unit comprising:
a plurality of light guide plates each including a light incident surface through which light is incident, and a light emitting surface through which the light is emitted, wherein the light guide plates are spaced apart from each other; a light source part including a printed circuit board, and a plurality of light source units each including light sources spaced apart from each other and on the printed circuit board, wherein the light source part is in a space between the light guide plates, and the light source part in the space emits the light to each light incident surface of the plurality of light guide plates; and an optical diffusion member including:
a diffusing part which overlaps the space between the light guide plates and diffuses light which is emitted from the light sources, anda supporting part which protrudes from the diffusing part in a direction opposite to the light emitting side of the light guide plates.