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Method of continuously manufacturing a product panel and system and method of detecting the front edge of a film

A manufacturing method and front-end technology, applied in the direction of layered products, chemical instruments and methods, optics, etc., can solve the problems of inability to apply continuous manufacturing of product panels, difficulty in obtaining high bonding accuracy, etc., and achieve shortened and increased moving distances. The effect of improving the number of manufactures and bonding accuracy

Active Publication Date: 2014-04-30
NITTO DENKO CORP
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Problems solved by technology

[0007] However, conventional continuous manufacturing equipment and methods for product panels have the following disadvantages: it is difficult to obtain high lamination accuracy that will be increasingly required in the future
In this way, the technology described in Patent Document 2 cannot be applied to the technology for continuously manufacturing product panels.

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  • Method of continuously manufacturing a product panel and system and method of detecting the front edge of a film
  • Method of continuously manufacturing a product panel and system and method of detecting the front edge of a film
  • Method of continuously manufacturing a product panel and system and method of detecting the front edge of a film

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Embodiment Construction

[0041]

[0042] The present invention will be described in detail below with reference to the accompanying drawings.

[0043] figure 1 is a schematic diagram of a device for realizing the continuous manufacturing method of the product panel of the present invention, figure 2 It is a process flowchart of the continuous manufacturing method of this invention. figure 1 The shown continuous manufacturing device 1 includes the image 3 The shown sheet-shaped polarizing film 10 is transported to the film conveying device 100 of the laminating station, the laminating device 200 is used to bond the sheet-shaped polarizing film 10 to the rectangular panel W, and the rectangular panel conveying device is used to transport the rectangular panel W to the laminating position The device 300 and the control device 400 for controlling the overall operations of the film conveying device 100 , the laminating device 200 and the rectangular panel conveying device 300 . The sheet-shaped pola...

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Abstract

[Problem] To provide a method of continuously manufacturing a product panel, whereby it is possible to continuously manufacture a product panel with high adhesion precision. [Solution] The method includes detecting the front edge of a film as the front edge of a polarising film in the form of a sheet approaches the position for sticking together with a rectangular panel, positional alignment of the polarising film in the form of a sheet with the rectangular panel based on information as to the position of the film front edge which is thus detected, and sticking together the polarising film in the form of a sheet and the rectangular panel. In order to detect the film front edge, light having an optical axis that makes an acute angle with respect to the direction of film feed is directed towards the film front edge from the upstream side of the direction of film feed of the polarising film in the form of a sheet, an image is acquired by image pickup of the region which is thus illuminated by the light, and the front edge of the film is identified, based on the difference in brightness of the image of the film front edge with respect to the image of portions other than the film front edge.

Description

technical field [0001] The present invention relates to a continuous manufacturing method of a product panel in which a sheet-shaped polarizing film is sequentially bonded to a rectangular panel continuously conveyed to a bonding position. In particular, the present invention relates to a continuous production method for product panels that can easily detect the front end of the sheet polarizing film, which is an alignment reference when the sheet polarizing film is bonded to a rectangular panel. Background technique [0002] In the past, in the manufacture of product panels such as liquid crystal display panels, the sheet-shaped polarizing film cut from the continuous strip-shaped polarizing film in advance in a process other than the product panel manufacturing process was brought into the product panel manufacturing process. In addition, rectangular panel lamination is brought into the manufacturing process of product panels. [0003] For such a manufacturing method, it ...

Claims

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Application Information

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IPC IPC(8): G02F1/13B32B7/02G02F1/1335
CPCG02F1/13B32B38/1841B32B2457/12B32B2041/06B32B2037/1223G02F1/1335G02F1/133528
Inventor 秦和也由良友和田村宜之长广一平三岛隼
Owner NITTO DENKO CORP
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