Manufacturing method and manufacturing system for optical film laminates, and optical film laminate

Abstract

Provided is an optical film laminate wherein pressure-sensitive adhesive layers are not exposed to the outside. In a method for manufacturing said optical film laminate, the widths of a second film (32) and third film (33) which are laminated onto a first film (31) are both made smaller than the width of the first film (31), and the second film (32) and third film (33) are sequentially laminated onto the first film (31) such that neither protrudes past the first film (31) in the width direction. Thus, pressure-sensitive adhesive layers (32A and 33A) in the optical film laminate (30) are not exposed to the outside.

Description

technical field [0001] The present invention relates to a method for producing an optical film laminate comprising a plurality of films by sequentially laminating other films having the above-mentioned adhesive layer formed on one surface thereof on a first film via an adhesive layer and A manufacturing system, and an optical film laminate. Background technique [0002] A method of manufacturing a liquid crystal display element by bonding a plurality of films through an adhesive layer to form an optical film laminate, transporting the formed optical film laminate, and pasting the optical film laminate to a liquid crystal panel has been proposed. (For example, refer to Patent Documents 1 and 2). [0003] However, in the above-mentioned method, when sticking a plurality of films, there is a problem that it is difficult to align and stick both ends of the width direction of each film accurately due to wrinkles of these films. In particular, when a plurality of films are forme...

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Problems solved by technology

[0003] However, in the above-mentioned method, when pasting a plurality of films, there is a problem that it is difficult to accurately align the widthwise ends of each film due to wrinkles of these films, etc.

In particular, when a plurality of films are formed with a width corresponding to the width of the liquid crystal panel, since the positions of the films in the width direction are relatively shifted, the adhesive layer formed on the surface of one of the films may be exposed. on the outside

In this case, dust and the like are likely to adhere to the exposed adhesive layer, and when such an optical film laminate is bonded to a liquid crystal panel to manufacture a liquid crystal display element, the manufactured liquid crystal display element may be defective. Becomes high

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