Method for deriving proper cutting condition of polarization plate

Abstract

A method for deriving a proper cutting condition of a polarization plate according to an embodiment of the present invention may comprise the steps of: (a) preparing a polarization plate including anadhesive layer and having a cut surface which is cut and formed thereon according to a predetermined cutting condition; (b) providing the polarization plate to a guide part such that one end of the polarization plate comes into contact with the guide part; (c) moving the polarization plate on the guide part; (d) measuring frictional force applied between the polarization plate and the guide part while the polarization plate is moved; and (e) deriving a proper cutting condition of the polarization plate on the basis of a value of the measured frictional force and a reference for determination on whether the adhesive of the polarization plate leaks, wherein the reference has been informationalized in advance by using frictional force data.

Description

technical field [0001] The present invention relates to a method of obtaining conditions for properly cutting polarizing plates, and more particularly, to a method of obtaining conditions for properly cutting polarizing plates based on adhesive leakage measurement standards. Background technique [0002] The polarizing plate is configured to realize a desired image by polarizing light vibrating in all directions so that the light vibrates only in a specific direction. Polarizing plates are attached to both sides of the liquid crystal display (LCD) panel. [0003] Such as figure 1 As shown, the polarizing plate 100 has a layered structure including: a polarizer layer 130 made of PVA material, an upper support layer 120 attached to both surfaces of the polarizer layer 130, and a lower support layer. layer 140, a protective film layer 110 formed on the upper portion of the upper support layer 120 and configured to protect the polarizer layer 130 from external environments suc...

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Problems solved by technology

However, since it is difficult to change the position of the transportation facility 1 once the transportation facility 1 is fixedly installed, leakage of only a small amount of the adhesive 151 on the transportation facility 1 also results in that the polarizing plate 100 cannot be set in the intended position for the attaching process or cleaning. the exact position of the process, resulting in a defect in the product

[0006] In the related art, a hard adhesive made by changing the composition ratio of segments contained in the adhesive is sometimes used to improve the adhesive The degree of leakage, but in this case, a problem of deterioration of adhesion caused by an increase in bulk modulus or a problem of reduced durability arises

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