公开(公告)号：US11668642B2

公开(公告)日：2023-06-06

申请号：US17182707

申请日：2021-02-23

Applicant: Samsung Display Co., Ltd.

Inventor： Han Ho Park ,  Hyung-Don Na ,  Kyung Jun Park ,  Eun Ji Park ,  Chang Seob Jung ,  Hyeon Deuk Hwang

IPC: G01N19/04

CPC classification number: G01N19/04 ,  G01N2203/0091

Abstract: A method of measuring adhesive strength includes setting an evaluation time (te), fixing a substrate and an adhesive member to a measurement device, pulling the adhesive member fixed to the measurement device with a first measurement force (Fe1) for the evaluation time (te), pulling the adhesive member fixed to the measurement device is pulled with a second measurement force (Fe2), which is obtained by increasing the first measurement force (Fe1) by a preset amount, for the evaluation time (te), and determining a reference measurement force (Fes) which is a static force applied to the adhesive member when a distance by which a first portion of the adhesive member is detached from the substrate is equal to a preset distance (dt) is determined.