Glass substrate package

a glass substrate and package technology, applied in the field of packaging, can solve the problems of limiting the efficiency of transportation and storage of glass substrates, the inability to eliminate the dirtying of the edge faces of each glass substrate in that method, and the inability to reduce the time and cost required for the washing process, and achieves the effect of eliminating scratches and dirt, high transportation efficiency, and reducing the time and cost of the washing process

US20050211592A1Inactive Publication Date: 2005-09-29CORNING INC
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
Publication Date
2005-09-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

A glass substrate package (1) in which a glass substrate (2) is packed and sealed is prepared by folding a film such as a PET film (3) which does not dirty surfaces of the glass substrate (2), inserting the glass substrate (2) into the folded portion of the PET film (3), and heat sealing three sides of the folded portion of the PET film while squeezing the air out of the folded portion so that heat-sealed portions (4) and (5) are formed. The package achieves high efficiency in transportation and storage of glass substrates (specifically, glass substrates to be used for LCDs etc.), and concurrently eliminates the need for a chemical washing process which is carried out after unpacking and before processing of each glass substrate and which uses special detergents.
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Description

FIELD OF THE INVENTION

[0001] The present invention relates to a package in which a glass substrate is packed and sealed with a film, and more specifically, to a package in which a glass substrate to be used for a liquid crystal display or the like is packed and sealed with a film. BACKGROUND OF THE INVENTION

[0002] To realize high quality of a display device such as a liquid crystal display (LCD), one of the greatest concerns is to eliminate scratches and dirt on surfaces of a glass substrate to be used for the display device as much as possible during transportation and storage thereof.

[0003] To address this problem, there have been several practical methods for transporting and storing the glass substrates. Such methods include a method of using a container provided with a plurality of grooves in which individual glass substrates are inserted, and a method of stacking a plurality of glass substrates each protected by a frame. In those methods, a gap filled with clean air is prov...

Examples

Embodiment Construction

[0027] Now, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0028] Shown in FIG. 1 is a glass substrate package 1 according to one embodiment of the present invention. In the glass substrate package 1, a glass substrate 2 is packed and sealed with a polyethylene terephthalate film 3 (hereinafter, referred to as the “PET film 3”). In FIG. 1, the PET film 3 is folded at the bottom edge of the glass substrate package 1. Provided near the right and left edges and the upper edge of the glass substrate package 1 are heat-sealed portions 4 and 5, respectively. It is desirable that the internal volume of the glass substrate package 1 has been deaerated.

[0029]FIG. 2 shows individual steps of an exemplary process for preparing the glass substrate package 1 shown in FIG. 1.

[0030] First, in the step of FIG. 2A, the glass substrate 2 is inserted into a folded end of the PET film 3 in a long and continuous form. Herein, a h...