Prism sheet having concave pentagonal

A prism sheet having a concave pentagonal structure is disclosed. The prism sheet comprises a base layer, and a prism array disposed on and supported by the base layer. The prism array is composed of a plurality of prisms aligned in parallel and one beside the other. The transversal cross-section of...

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Bibliographische Detailangaben
Hauptverfasser: PAE CHONG-PIL, HWANG JANG-HWAN, KOOK MINOL
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A prism sheet having a concave pentagonal structure is disclosed. The prism sheet comprises a base layer, and a prism array disposed on and supported by the base layer. The prism array is composed of a plurality of prisms aligned in parallel and one beside the other. The transversal cross-section of each prism has a shape of concave pentagon, which is symmetrical about a vertical line passing the apex. The interior angle a of the apex is 30°