METHOD AND APPARATUS FOR PRODUCING COMBINED OPTICAL FILM, COMBINED OPTICAL FILM, IMAGE DISPLAY, METHOD FOR PRODUCING LIQUID CRYSTAL PANEL, AND METHOD FOR PRODUCING LAMINATED OPTICAL FILM

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a combined optical film that includes opposing the end faces of a plurality of optical films to one another and can narrow the gap between the opposed end faces.

SOLUTION: The method for producing the combined optical film comprising a plurality of optical films each having at least one end face at which the optical films are opposed to one another includes: a step (1) opposing the end faces of the optical films to one another with a gap provided therebetween; a step (2) bonding a first seal material to the opposed portions of the optical films on the first side of each optical film to join the optical films; a step (3) bending the joined opposed portions of the optical films such that the joined opposed portions become recessed on the second side of each optical film where the first seal material is not bonded and such that the gap is narrowed on the second side; a step (4) bonding a second seal material to the opposed portions on the second side, while the joined optical films are bent such that the gap is narrowed on the second side; and a step (5) canceling the bending of the joined optical films to make them flat.

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