METHOD FOR PRODUCING LONG-SIZED POLYMER FILM, λ/4 PLATE, POLARIZING PLATE, AND STEREOSCOPIC IMAGE DISPLAY DEVICE

PROBLEM TO BE SOLVED: To provide a method for producing a long-sized polymer film applicable as a λ/4 plate, where crosstalk does not occur even when a viewer inclines his or her neck while viewing a stereoscopic image on a display with spectroscopic image viewing spectacles on, and to provide a λ/4...

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Bibliographische Detailangaben
1. Verfasser:	KOGURE MIDORI
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES THEREFOR AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY 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 ELECTROGRAPHY FREQUENCY-CHANGING HOLOGRAPHY INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PERFORMING OPERATIONS PHOTOGRAPHY PHYSICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for producing a long-sized polymer film applicable as a λ/4 plate, where crosstalk does not occur even when a viewer inclines his or her neck while viewing a stereoscopic image on a display with spectroscopic image viewing spectacles on, and to provide a λ/4 produced by this method, and a polarizing plate and a stereoscopic image display device which include the λ/4 plate.SOLUTION: In the method for producing a long-sized polymer film, a rear end part of a preceding polymer film is coincided with a front end part of a succeeding polymer film to join them together, and the polymer films are continuously drawn in an oblique direction forming an angle of 40 to 50° with a breadthwise direction of the polymer film. The rear end part of the preceding polymer film and the front end part of the succeeding polymer film are joined together so that a junction line in a junction between them is substantially parallel (at an angle of -10 to 10°) with the breadthwise direction after oblique drawing.