Substrate surface sealing device and organic el panel fabrication method

Abstract

Operating labor is diminished to improve takt time, and lamination that prevents deterioration of the performance of the finished product can be realized. The cover films (13a) are peeled by a cover film uptake mechanism (15) (figure 4) from films (13) from film rolls (24a-24d) (figure 6) of a film out-feed mechanism (14), and then fed to an inter-substrate processing mechanism (16). In the inter-substrate processing mechanism (16), sheet sealing materials (5) (figure 3) are formed, in which specified lengths of the sealing material films (5') of the films (13) (figure 4) are peeled off at specified intervals, as shown in figure 9, by means of half-cut members (34) and a peel-off tape (36) (figure 7). The films (13), treated in this way, are fed into a lamination mechanism (19), where the sheet sealing materials (5) are heated and press-applied to a substrate (1) from the preceding chamber (10), and then cooled by a substrate cooling mechanism (30), and then the base films (13b) (figure 4) of the films (13) are peeled off by a base film uptake mechanism (21).

Description

technical field [0001] The present invention relates to the manufacture of organic EL (Electro Luminescence: electroluminescent) panels, and more particularly to a sealing device for sealing the surface of a substrate by pasting a sheet-shaped sealing material on a substrate coated (installed) with an organic EL element, and an organic EL panel. Manufacturing method. Background technique [0002] An organic EL panel is a component that has a structure in which a plurality of organic EL elements are arranged vertically and horizontally between two bonded substrates. However, in the manufacture of related organic EL panels, conventionally, these organic EL elements were sealed with sealing materials. . [0003] As a conventional example of such an organic EL panel manufacturing method, an organic EL element is sandwiched from above and below by an organic thin film having a low water moisture transmittance, and the part of the organic thin film protruding from the upper and l...

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Problems solved by technology

[0010] However, the technique described in Patent Document 1 above is a technique for laminating each organic EL element so as to cover the entirety thereof, and since it is used to fabricate an organic EL element after fabricating a stacked organic EL element from one organic thin film in this way, The technology of LE elements, therefore, becomes a labor-intensive operation, and because the related lamination process is carried out in the atmosphere, there is also the influence of the surrounding environment, the influence of dust or moisture, etc., resulting in deterioration of the characteristics of the EL element possibility of

[0011] On the other hand, in the technique described in Patent Document 2, since the lamination process is performed in the vacuum atmosphere in the chamber, it is possible to suppress the occurrence of wrinkles in the film during lamination, compared to the case where the lamination process is performed in the atmosphere. Pleats, air bubbles are generated between the film (that is, the protective film) and the article to which it is bonded (that is, the base film), but since these base films and the protective film are continuously introduced into the cavity from the outside, there are The air leakage from their inlets into the cavity leads to a decrease in the vacuum in the cavity, and moisture, dust, etc. also enter the cavity with the air leakage, deteriorating the performance of the product bonded with the protective film. question

[0012] In addition, in the technology described in the above-mentioned Patent Document 2, an openable and closable shutter is provided at the inlet of the protective film, and it is considered that the leakage of air into the cavity can be reduced as much as possible by adjusting its opening and closing state. According to this, if If the gate comes into contact with the protective film, it will damage the protective film and adversely affect the properties of the laminated product.

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