MANUFACTURING METHOD FOR LAMINATED PHASE DIFFERENCE FILM, LAMINATED PHASE DIFFERENCE FILM AND OPTICAL FILM USING THE SAME

PROBLEM TO BE SOLVED: To provide a new manufacturing method for a phase difference film. SOLUTION: A birefringent layer is formed by irradiating at least one surface of polymer film showing birefringent property with polarized light so as to change the refractive index anisotropy of the polymer film...

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Bibliographische Detailangaben
Hauptverfasser:	SHUDO SHUNSUKE, ISHIBASHI KUNIAKI
Format:	Patent
Sprache:	eng
Schlagworte:	DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a new manufacturing method for a phase difference film. SOLUTION: A birefringent layer is formed by irradiating at least one surface of polymer film showing birefringent property with polarized light so as to change the refractive index anisotropy of the polymer film, coating the surface of the polymer film which has been irradiated with the polarized light with a coating liquid containing a liquid crystalline compound so as to form a coating film, and performing heat-treatment to the coating film and orienting the liquid crystalline compound in accordance with the refractive index anisotropy of the polymer film. Thus, the laminated phase difference film where the birefringent layer is formed on the polymer film whose optical characteristic is reformed is provided. COPYRIGHT: (C)2006,JPO&NCIPI