METHOD FOR MANUFACTURING LIQUID CRYSTAL FILM AND ELLIPTICALLY POLARIZER

• Main Authors: HOSAKI KENJI, SATO HARUYOSHI, SUZUKI SHINICHIRO
• Format: Patent
• Language: English
• Published: 23.04.2003
• Edition: 7
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; 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; GENERAL PROCESSES OF COMPOUNDING; METALLURGY; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PHYSICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

PROBLEM TO BE SOLVED: To provide a method for manufacturing a liquid crystal film made to be a thin film without a supporting substrate film which satisfies mechanical strength required in manufacturing and excellent release property and facilitates optical inspection of defect. SOLUTION: A liquid crystal substance layer with fixed liquid crystal alignment on an alignment substrate is made to stick to a releasable substrate composed of a uniaxial stretched polyester film via an adhesive. Subsequently the liquid crystal substance layer is transferred to the releasable substrate by releasing the alignment substrate and subsequently the liquid crystal film is manufactured by releasing the releasable substrate therefrom.