| 摘要 |
A backlight unit with a graphite spreader and coating films for sealing the graphite spreader to prevent fall of foreign substances from the graphite spreader is provided with a liquid crystal display device. The backlight unit includes a cover bottom, a plurality of light sources mounted on the cover bottom, a graphite spreader that dissipates heat from the light sources and is formed with at least one hole, and first and second coating films that are attached to upper and lower surfaces of the graphite spreader, respectively, and extend outward from an edge of the graphite spreader such that extent that the first and second coating films contact each other.
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