PHASE DIFFERENCE FILM AND MANUFACTURE THEREOF
PROBLEM TO BE SOLVED: To provide a phase difference film of large width having optical performance applicable of a large-sized liquid crystal display device and capable of taking multiple pieces, and to be advantageous in cost. SOLUTION: This phase difference film formed by drawing a thermoplastic r...
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| creator | MAKI HARUHIKO KOSHIOKA MASANORI |
| description | PROBLEM TO BE SOLVED: To provide a phase difference film of large width having optical performance applicable of a large-sized liquid crystal display device and capable of taking multiple pieces, and to be advantageous in cost. SOLUTION: This phase difference film formed by drawing a thermoplastic resin film has shift of a retardation phase axis to the drawing direction in the cross direction within ±0.7 degree, and/or its dispersion of retardation in the width direction is 10 nm or less and the film width is 700 mm or more. This manufacturing method includes a drawing process of drawing at a temperature set higher than drawing temperature by 2 deg.C or more where the difference between the maximum value and the minimum value of retardation in the width direction of the phase difference film is minimum. |
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SOLUTION: This phase difference film formed by drawing a thermoplastic resin film has shift of a retardation phase axis to the drawing direction in the cross direction within ±0.7 degree, and/or its dispersion of retardation in the width direction is 10 nm or less and the film width is 700 mm or more. This manufacturing method includes a drawing process of drawing at a temperature set higher than drawing temperature by 2 deg.C or more where the difference between the maximum value and the minimum value of retardation in the width direction of the phase difference film is minimum.</description><edition>7</edition><language>eng</language><subject>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G ; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING ; CHEMISTRY ; COMPOSITIONS BASED THEREON ; GENERAL PROCESSES OF COMPOUNDING ; METALLURGY ; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS ; OPTICS ; ORGANIC MACROMOLECULAR COMPOUNDS ; PERFORMING OPERATIONS ; PHYSICS ; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR ; SHAPING OR JOINING OF PLASTICS ; THEIR PREPARATION OR CHEMICAL WORKING-UP ; TRANSPORTING ; WORKING OF PLASTICS ; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL ; WORKING-UP</subject><creationdate>2000</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20000908&DB=EPODOC&CC=JP&NR=2000241628A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20000908&DB=EPODOC&CC=JP&NR=2000241628A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MAKI HARUHIKO</creatorcontrib><creatorcontrib>KOSHIOKA MASANORI</creatorcontrib><title>PHASE DIFFERENCE FILM AND MANUFACTURE THEREOF</title><description>PROBLEM TO BE SOLVED: To provide a phase difference film of large width having optical performance applicable of a large-sized liquid crystal display device and capable of taking multiple pieces, and to be advantageous in cost. 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SOLUTION: This phase difference film formed by drawing a thermoplastic resin film has shift of a retardation phase axis to the drawing direction in the cross direction within ±0.7 degree, and/or its dispersion of retardation in the width direction is 10 nm or less and the film width is 700 mm or more. This manufacturing method includes a drawing process of drawing at a temperature set higher than drawing temperature by 2 deg.C or more where the difference between the maximum value and the minimum value of retardation in the width direction of the phase difference film is minimum.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| subjects | AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING METALLURGY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP |
| title | PHASE DIFFERENCE FILM AND MANUFACTURE THEREOF |
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