International Display Workshops General Incorporated Association

16:40 〜 17:05

[FLX3-1(Invited)] Analysis of Neutral-Plane Splitting for Foldable Displays Using Digital Image Correlation Method

*Masatomo Hishinuma1, Masumi Nishimura1, Hajime Yamaguchi1, Akio Murayama1 (1. Japan Display Inc. (Japan))

Foldable display, Neutral-plane splitting, Digital image correlation

https://doi.org/10.36463/idw.2020.0898

Strain control with neutral-plane splitting is an essential technology in designing foldable displays. We established a method for analyzing continuous changes in cross-sectional strain distribution throughout the folding process. Digital image correlation (DIC) method with an optical microscope successfully revealed that the neutral-plane position changes with the folding radius.