公开(公告)号：US20200341177A1

公开(公告)日：2020-10-29

申请号：US16958946

申请日：2019-06-21

Applicant: LG CHEM, LTD.

Inventor： Moon Chan LEE ,  Jeong Ho PARK ,  Jin Soo LEE ,  Bu Gon SHIN

IPC: G02B5/30

Abstract: A method of deriving an appropriate condition for cutting a polarizing plate, the method including: (a) preparing a polarizing plate including an adhesive layer and having a cut surface; (b) providing the polarizing plate so that one end of the polarizing plate adjoins a guide unit; (c) moving the polarizing plate on the guide unit; (d) measuring frictional force applied between the polarizing plate and the guide unit while moving the polarizing plate; and (e) deriving the appropriate condition for cutting the polarizing plate based on the measured value of the frictional force and a predetermined adhesive agent leakage determination criterion based on the frictional force.