Multilayered optical film

Details Multilayered optical film Multilayered optical film

B - Operations, Transporting

32

B

B32B 27/36 (2006.01) B29C 55/02 (2006.01) B29D 11/00 (2006.01) B32B 7/02 (2006.01) G02B 5/30 (2006.01) G02B 27/28 (2006.01) G02F 1/1335 (2006.01) G02F 1/13357 (2006.01)

Patent

CA 2177714

The present invention includes a multilayered polymer film (10) comprising a body of a plurality of alternating layers (12) of a crystalline naphthalene dicarboxylic acid polyester and another selected polymer (14) wherein the layers have a thickness of less than 0.5 micrometer and wherein the crystalline naphthalene dicarboxylic acid polyester layer has a higher index of refraction associated whith at least one in-plane axis adjoining layers of the selected polymer.

La présente invention décrit un film polymère multicouche (10) comprenant un corps d'une pluralité de couches alternées (12) d'un polyester d'acide dicarboxylique de naphtalène cristallin et d'un autre polymère sélectionné (14). Ces couches présentent une épaisseur inférieure à 0,5 micromètres et la couche de polyester d'acide dicarboxylique de naphtalène cristallin présente un indice de réfraction, associé à au moins un axe dans le plan, plus élevé que les couches avoisinantes du polymère sélectionné.

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