MATERIALS, CONFIGURATIONS, AND METHODS FOR REDUCING WARPAGE IN OPTICAL FILMS

A multilayer optical body having improved dimensional stability is disclosed . The optical body includes an optical film, such as an oriented multilayer optical film, and a dimensionally stable (warp-resistant) layer that include s a combination of i) polystyrene or a first polystyrene copolymer and...

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Bibliographische Detailangaben
Hauptverfasser:	STROBEL, JOAN M, HAMER, KEVIN M, ROSELL, BARRY S, HEBRINK, TIMOTHY J
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PERFORMING OPERATIONS PHYSICS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TRANSPORTING
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Beschreibung
Zusammenfassung:	A multilayer optical body having improved dimensional stability is disclosed . The optical body includes an optical film, such as an oriented multilayer optical film, and a dimensionally stable (warp-resistant) layer that include s a combination of i) polystyrene or a first polystyrene copolymer and ii) a second polystyrene copolymer or the layer includes a norbornene-based polyme r. In addition, in specific implementations, the invention includes an intermediate layer between the optical film and the dimensionally stable layer. Methods of making the optical body are also disclosed.