发明名称 |
Lichtreflektierende Folie, Verfahren zu deren Herstellung und Formkörper davon |
摘要 |
<p>The light reflection sheet (I) of the present invention comprises a sheet having a thickness of 0.4 to 2 mm and comprising a polycarbonate resin composition containing (B) titanium oxide, and the sheet has a light reflectance of 98% or more and a light transmittance of less than 1%. It is excellent in a flame retardancy and a reflection characteristic. Also, the light reflection sheet (II) of the present invention is prepared by providing a light-fast layer which cuts or absorbs a UV ray in a thickness of 0.5 to 20 mum on at least one face of a base sheet having a thickness of 0.4 to 2 mm and comprising a PC resin composition containing a combination of 85 to 60 mass % of (A) a PC base polymer and 15 to 40 mass % of (B) titanium oxide. It is less yellowed and less reduced in a reflection characteristic even after used for a long period of time. Further, the light reflection sheet (III) of the present invention is prepared by providing a light diffusion layer which diffuses and reflects light in a thickness of 0.5 to 20 mum on at least one face of the same base sheet as in the light reflection sheet (II). It is improved in a light diffusing and reflecting property and can form a liquid crystal image plane having less luminance unevenness when it is used as a direct under type liquid crystal back light.</p> |
申请公布号 |
DE112004001304(T5) |
申请公布日期 |
2006.10.19 |
申请号 |
DE20041101304 |
申请日期 |
2004.03.02 |
申请人 |
IDEMITSU KOSAN CO. LTD. |
发明人 |
FUNAKI, KEISUKE;KOGURE, MASAMI;AKAMINE, HIROSHI;KAWATO, HIROSHI |
分类号 |
G02B5/08;F21V7/22;G02B5/02 |
主分类号 |
G02B5/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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