International Display Workshops Incorporated Association

1:40 PM - 2:05 PM

[AMD1-1(Invited)] Development of Foldable AMOLED Displays Based on Neutral-Plane Splitting Concept

*Masumi Nishimura1, Kisako Takebayashi1, Masatomo Hishinuma1, Hajime Yamaguchi1, Akio Murayama1 (1. Japan Display Inc. (Japan))

Foldable display, Neutral-plane splitting, Bending stiffness, Adhesive, Organic light-emitting diode

https://doi.org/10.36463/idw.2019.0390

Splitting of the mechanical neutral plane is a promising concept for foldable displays because it reduces the
folding stress and stiffness of the display. We verified the concept experimentally and developed 5.5-inch full high-
definition foldable AMOLED displays, which endured 150 k inward folding cycles with folding radius of 3 mm.