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.
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Erschienen in
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Auxetic Meta‐Display: Stretchable Display without Image Distortion ; day:15 ; month:02 ; year:2022 ; extent:10
Advanced functional materials ; (15.02.2022) (gesamt 10)
- Urheber
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Jang, Bongkyun
Won, Sejeong
Kim, Jaegu
Kim, Juho
Oh, Minsub
Lee, Hak‐Joo
Kim, Jae‐Hyun
- DOI
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10.1002/adfm.202113299
- URN
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urn:nbn:de:101:1-2022021614260646281393
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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15.08.2025, 07:35 MESZ
Datenpartner
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Beteiligte
- Jang, Bongkyun
- Won, Sejeong
- Kim, Jaegu
- Kim, Juho
- Oh, Minsub
- Lee, Hak‐Joo
- Kim, Jae‐Hyun