FOAM SHEET, LIGHT REFLECTION PLATE, BACK LIGHT PANEL, RESIN SHEET FOR PRODUCTION OF FOAM SHEET AND METHOD OF PRODUCING FOAM SHEET

PROBLEM TO BE SOLVED: To provide a foam sheet which is formed with a specified uneven shape on the surface, with high accuracy, and shows excellent white spot resistance as a light reflection plate of a back light panel.SOLUTION: A foam sheet 10 composed of a thermoplastic resin includes a thermopla...

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Hauptverfasser: INAMORI KOJIRO, FUJINO HIDETOSHI, YOSHITANI TSUTOMU, MORITA NAGAYUKI, SUZUKI OSAMU, IKURA YUKIHIRO, KIMURA KAZUHIRO, MURAKAMI AKIHIRO, NOMURA SHINGO, KABUMOTO AKIRA, INOUE SHOTA, UMEMURA KOJI
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a foam sheet which is formed with a specified uneven shape on the surface, with high accuracy, and shows excellent white spot resistance as a light reflection plate of a back light panel.SOLUTION: A foam sheet 10 composed of a thermoplastic resin includes a thermoplastic resin (A) layer 11 containing cells and a thermoplastic resin (B) layer 12 containing particles and no cells. The thermoplastic resin (B) layer 12 containing particles and no cells constitutes the outermost layer of the foam sheet 10 and has an arithmetic average roughness (Ra) of the surface of 0.5 μm