Auxetic Meta‐Display: Stretchable Display without Image Distortion

Abstract: Mechanical metamaterials possess unusual mechanical properties that cannot be found in nature. Auxetic metamaterials have negative Poisson's ratios and tend to expand in a direction perpendicular to the axial extension direction. When the Poisson's ratio of a display circuit board is forced to be −1 by adopting an auxetic metamaterial, a display can be stretchable without image distortion, and this display is called a meta‐display in this study. The critical obstacles to implementing a stretchable display are large stretchability, high deformation uniformity, and low image distortion. The meta‐display overcomes these obstacles by incorporating micro‐LEDs and a kirigami‐based auxetic circuit board. An auxetic meta‐display with a stretchability of 24.5%, Poisson's ratio of −1, and no image distortion under uniaxial stretching is demonstrated. Finally, the roll transfer process enabled the scaling‐up of a 3‐inch meta‐display attachable to surfaces with non‐zero Gaussian curvatures. This conformity to the non‐zero Gaussian curvature helps realize biomedical applications such as wearable display, phototherapy, and skincare.

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: Auxetic Meta‐Display: Stretchable Display without Image Distortion ; day:15 ; month:02 ; year:2022 ; extent:10 ; Advanced functional materials ; (15.02.2022) (gesamt 10)

Contributors, Places and Time

• Creator: Jang, Bongkyun ; Won, Sejeong ; Kim, Jaegu ; Kim, Juho ; Oh, Minsub ; Lee, Hak‐Joo ; Kim, Jae‐Hyun

Further information

• DOI: 10.1002/adfm.202113299
• URN: urn:nbn:de:101:1-2022021614260646281393
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 15.08.2025, 7:35 AM CEST