Optical film storage box

Abstract

The present invention relates to a storage box for an optical film having improved sealability, comprising: a cover wherein a multi-stage cover outer wall is provided, and an accommodating space is provided inside; an intermediate plate having a holder to support a side of an optical film to make the optical film be seated inside the cover; and a bottom plate to support an intermediate plate wherein a multi-stage bottom plate outer wall is provided. In addition to this, a hinge is provided to make the cover and the bottom plate adhere and be fixated to each other. The bottom plate has a honeycomb. According to an embodiment of the present invention, a plurality of protrusions is provided on the multi-stage cover outer wall and the multi-stage bottom plate outer wall to make the protrusions be engaged with each other in order to prevent an inflow of foreign substances. A sealing member is inserted into a space between the protrusions to improve sealability. A rotatable hinge wherein first and second wings have a bending structure to press the cover and bottom plate allows for effective sealing.

Description

technical field [0001] The present invention relates to an optical film storage box, in particular to an optical film storage box which is arranged in a sealed structure in order to prevent the inflow of impurities and protect the optical film from external impact when storing and transporting the optical film. Background technique [0002] In general, a display film (sheet) can be classified into an optical film and a sealing film. The optical film includes a polarizing film, a diffusing film, a reflecting film, a light enhancing film and the like. The thin film for sealing includes a metal film, an adhesive film, and the like. [0003] In particular, display films need to be produced through processes such as stretching, compression, surface coating, lamination, and cutting in order to impart functions to resin films. The display film is generally manufactured through the various processes used in the lamination of special films. After one process is completed, the film ...

AI Technical Summary

Problems solved by technology

[0007] However, since the tray and the cover are not completely fixed in this storage box provided with a cover, when an impact from inside or outside is received, or a worker makes a mistake, the cover may break away from the tray and damage the optical film.

In addition, the tray and the cover are not airtight structures, so they are easily affected by impurities, moisture, etc.

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