Method and system for manufacturing liquid crystal display device
A technology of liquid crystal display element and manufacturing method, which is applied to polarizing elements, chemical instruments and methods, electronic equipment, etc., can solve problems such as difficulty in sticking, processing and positioning, serpentine movement of liquid crystal panels, and inability to stably transport liquid crystal panels, etc.
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Embodiment approach 1
[0033] Manufacturing method of liquid crystal display element
[0034] The method of manufacturing a liquid crystal display element includes a pasting step of conveying the carrier film from a continuous roll formed by winding a long carrier film on which an optical film of a predetermined film width including an adhesive is laminated. The optical film peeled from the carrier film or the optical film peeled from the carrier film is stuck on the first panel surface and the second panel surface of the liquid crystal panel. In the pasting step, a pasting process of pasting the optical film on the first panel surface of the liquid crystal panel and a pasting process of pasting the optical film on the second panel surface of the liquid crystal panel are alternately performed.
[0035] The manufacturing method of a liquid crystal display element has a carrier film conveyance process which conveys a carrier film from a continuous roll, and a peeling process which peels an optical f...
Embodiment approach
[0039] As another example of the above-mentioned embodiment, before the dicing process for forming the film, an inspection process (for example, light transmission inspection) that can inspect the defect of the optical film may be included, and the defect can be avoided based on the defect result of the inspection process. Cuts are made in a continuous manner (called jump cuts). In addition, this skip dicing can also be performed by reading defect information preliminarily attached to an optical film or a carrier film.
[0040] Manufacturing system for liquid crystal display elements
[0041] The manufacturing system of the liquid crystal display element has a sticking device that conveys the continuous roll body of a long carrier film wound with an optical film of a predetermined film width including an adhesive, and transfers the carrier film from the The optical film peeled from the carrier film or the optical film peeled from the carrier film is stuck on the first panel...
Embodiment
[0063] use Figure 4 The film lamination device shown sticks various optical films on a liquid crystal panel (32-inch size). In addition, the manufacturing system appropriately executes the upside-down flip and 90° rotation of the liquid crystal panel according to the type of optical film and the order of attachment. The film sheet is formed by cutting a long optical film, and the size of the film sheet can be set according to the sticking surface and sticking direction.
[0064] As the optical film, MD polarizing film (SEG1423DU manufactured by Nitto Denko Co., Ltd.), AGS film with anti-glare treatment (trade name of Dainippon Printing Co., Ltd.: AGS1 (TDP1490)), reflective polarizing film (3M Co., Ltd. Product DBEF). Table 1 shows the conditions of the bonding surface (back side, visual recognition side) of the optical film and the liquid crystal panel in each Example and each comparative example. Sections (1) to (3) in Table 1 are transport sections in which a liquid cry...
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Abstract
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