74‐1: Invited Paper: Highly Stretchable and Shrinkable AMOLED for Free Deformation

Abstract

Flexible display technology has been successfully commercialized with foldable and rollable displays. Because of the limitation of the flexible technology, stretchable displays have attracted great attention which capable of realizing freeform design as a post‐flexible display. However, no technology has yet provided sufficient stretchability and resolution to realize genuine free‐form displays. We report on a highly deformable AMOLED display which capable of elongation over 20%. Moreover, our display is capable of more than 15% shrinkage deformation. We also developed low‐temperature thermal shrink process to make the most of the potential of the display. The fabricated full‐color stretchable AMOLED shows excellent deformability with high pixel density.

Embracing Stretchable “Form Factor‐Free” Displays

“…3), achieving the highest stretchability among OLED-based displays. 11 The key concept for high stretchability is making the rigid islands smaller and sufficiently securing the space between islands for large deformation, which is the main concept for optimizing the IB structure. Prototypes were fabricated based on the materials and methods used to fabricate commercialized flexible displays, and as a result, there is no degradation of the display such as luminance and color volume, even after stretching or deformation.…”