| 摘要 |
A reflection sheet is provided to realize improved weather resistance and dimensional stability, to prevent yellowing, and to improve reflection, so that the reflection sheet is desirably used in a backlight unit of a liquid crystal display device. A reflection sheet comprises a cyclic olefin polymer(COP) or cyclic olefin copolymer(COC) as a base resin for forming a base layer, and contains micropores having an average diameter of 50 micrometers or less. The cyclic olefin polymer or copolymer contains cyclic olefin units in an amount of 0.1-100 wt% based on the total weight thereof. The base layer further comprises a UV-protection layer formed on either surface or both surfaces thereof. The reflection sheet has a thickness of 0.3-1.5 mm. |
