| 摘要 |
A backlight unit includes a light guide panel to guide entering light, a light source disposed on at least one side of the light guide panel to emit light, and a reflecting sheet disposed on a surface of the light guide panel to reflect the entering light toward a light emitting plane of the light guide panel, and includes a plurality of reflecting areas which have different reflectance, where a reflecting area of the plurality of reflecting areas which encounters a relatively large amount of the entering light has a higher reflectance than that of a reflecting area of the plurality of reflecting areas which encounters a relatively small amount of the entering light.
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