{"id":674798,"date":"2025-06-12T23:20:43","date_gmt":"2025-06-12T20:20:43","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/kirigami-inspired-design-enables-uniform-200-stretch-in-multi-pixel-display-arrays\/"},"modified":"2025-06-12T23:20:43","modified_gmt":"2025-06-12T20:20:43","slug":"kirigami-inspired-design-enables-uniform-200-stretch-in-multi-pixel-display-arrays","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/kirigami-inspired-design-enables-uniform-200-stretch-in-multi-pixel-display-arrays\/","title":{"rendered":"Kirigami-inspired design enables uniform 200% stretch in multi-pixel display arrays"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a34d50930472\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #dd3333;color:#dd3333\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #dd3333;color:#dd3333\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a34d50930472\" checked aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/buradabiliyorum.com\/en\/kirigami-inspired-design-enables-uniform-200-stretch-in-multi-pixel-display-arrays\/#The_limitations_of_existing_stretchable_display_technologies\" >The limitations of existing stretchable display technologies<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/buradabiliyorum.com\/en\/kirigami-inspired-design-enables-uniform-200-stretch-in-multi-pixel-display-arrays\/#Toward_real-world_applications\" >Toward real-world applications<\/a><\/li><\/ul><\/nav><\/div>\n<div>\n<div class=\"article-gallery lightGallery\">\n<div data-thumb=\"https:\/\/scx1.b-cdn.net\/csz\/news\/tmb\/2025\/postech-solves-core-ch.jpg\" data-src=\"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2025\/postech-solves-core-ch.jpg\" data-sub-html=\"Visualization of encrypted numeric patterns enabled by uniform strain distribution and polarization filtering. Credit: POSTECH\">\n<figure class=\"article-img\">\n            <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/scx1.b-cdn.net\/csz\/news\/800a\/2025\/postech-solves-core-ch.jpg\" alt=\"POSTECH solves core challenge in stretchable displays with uniform multi-pixel strain control\" title=\"Visualization of encrypted numeric patterns enabled by uniform strain distribution and polarization filtering. Credit: POSTECH\" width=\"800\" height=\"530\"\/><figcaption class=\"text-darken text-low-up text-truncate-js text-truncate mt-3\">\n                Visualization of encrypted numeric patterns enabled by uniform strain distribution and polarization filtering. Credit: POSTECH<br \/>\n            <\/figcaption><\/figure>\n<\/p><\/div>\n<\/div>\n<p>A research team at POSTECH (Pohang University of <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/sciencee\/\" data-internallinksmanager029f6b8e52c=\"5\" title=\"Science\" target=\"_blank\" rel=\"noopener\">Science<\/a> and <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/technology\/\" data-internallinksmanager029f6b8e52c=\"4\" title=\"Technology\" target=\"_blank\" rel=\"noopener\">Technology<\/a>) has successfully developed the world&#8217;s first technology that enables uniform and even stretching across multiple pixels in a stretchable display. This breakthrough overcomes a critical challenge in the field and has been selected as a Back Cover <a rel=\"nofollow\" target=\"_blank\" href=\"https:\/\/advanced.onlinelibrary.wiley.com\/doi\/10.1002\/adfm.202422772\" target=\"_blank\">article<\/a> in the journal <i>Advanced Functional Materials<\/i>. The team was led by Professor Su Seok Choi from the Department of Electrical Engineering and Ph.D. candidate Jun Hyuk Shin.<\/p>\n<p>Display technology is currently undergoing a global transformation, with intense competition surrounding shape-deformable devices. Innovations such as foldable, bendable, and slidable displays have already emerged, and now attention is rapidly shifting\u2014especially in South Korea\u2014toward stretchable displays, which go beyond simple curvature and can physically expand.<\/p>\n<p>Stretchable displays are expected to evolve into next-generation devices that integrate with sensors to form electronic skin-like systems, capable of mimicking the flexibility and softness of human skin. For this direction, ideally fully and intrinsically stretchable technology with uniform control is highly desired.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"The_limitations_of_existing_stretchable_display_technologies\"><\/span>The limitations of existing stretchable display technologies<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Most existing stretchable technologies rely on an extrinsic <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/download-scripts-themes-apps\/\" data-internallinksmanager029f6b8e52c=\"9\" title=\"Download Scripts &amp; Themes &amp; Apps\" target=\"_blank\" rel=\"noopener\">app<\/a>roach, using rigid electronic components connected by wavy or serpentine interconnects. While this allows some degree of mechanical deformation, it comes with significant trade-offs\u2014limited stretching range, reduced pixel density, and degradation in display uniformity and image quality under strain.<\/p>\n<figure class=\"mb-4\" itemscope=\"\" itemtype=\"http:\/\/schema.org\/VideoObject\">\n    <meta itemprop=\"name\" content=\"POSTECH solves core challenge in stretchable displays with uniform multi-pixel strain control\"\/><br \/>\n    <meta itemprop=\"url\" content=\"https:\/\/scx2.b-cdn.net\/gfx\/video\/2025\/postech-solves-core-ch.mp4\"\/><br \/>\n    <meta itemprop=\"description\" content=\"Comparison of strain distribution of 7 by 7 arrayed CLCEs in pristine and cut pattern &amp; rigid plates design by FEM. Credit: Advanced Functional Materials (2024). DOI: 10.1002\/adfm.202422772\"\/><br \/>\n    <meta itemprop=\"uploadDate\" content=\"2025-06-12T11:33:42-04:00\"\/><br \/>\n        <meta itemprop=\"thumbnailUrl\" content=\"https:\/\/scx1.b-cdn.net\/gfx\/video_tmb\/2025\/postech-solves-core-ch.mp4.jpg\"\/><br \/>\n    <meta itemprop=\"contentUrl\" content=\"https:\/\/scx2.b-cdn.net\/gfx\/video\/2025\/postech-solves-core-ch.mp4\"\/><br \/>\n            <video class=\"embed-responsive embed-responsive-16by9\" id=\"jwVID83894\" controls=\"\" poster=\"https:\/\/scx1.b-cdn.net\/gfx\/video_tmb\/2025\/postech-solves-core-ch.mp4.jpg\"><source src=\"https:\/\/scx2.b-cdn.net\/gfx\/video\/2025\/postech-solves-core-ch.mp4\" type=\"video\/mp4\"><\/source><\/video><figcaption class=\"text-darken text-low-up mt-4\" itemprop=\"caption\">Comparison of strain distribution of 7 by 7 arrayed CLCEs in pristine and cut pattern &amp; rigid plates design by FEM. Credit: <i>Advanced Functional Materials<\/i> (2024). DOI: 10.1002\/adfm.202422772<\/figcaption><\/figure>\n<p>In contrast, the intrinsic approach, which uses materials like silicone or rubber that are inherently stretchable, is considered the ideal path forward. However, such systems have struggled with non-uniform strain distribution, particularly in multi-pixel arrays. As each pixel experiences a different degree of deformation depending on its location, this leads to inconsistencies in color, brightness, and signal transmission.<\/p>\n<p>                                                                                                        <!-- TechX - News - In-article --><\/p>\n<p>This issue is fundamentally rooted in geometry and physics: when a stretchable material is pulled, areas farther from the point of tension receive less strain\u2014similar to how the center of a rubber band or melted cheese stretches more than its edges. So far, achieving uniform stretching across all pixels in an intrinsically stretchable system has remained a critical and unsolved problem.<\/p>\n<p>To overcome this challenge, the POSTECH team drew inspiration from kirigami, the traditional Japanese art of paper cutting. By introducing finely patterned incisions on the surface of the stretchable substrate, they were able to evenly distribute mechanical stress during stretching.<\/p>\n<p>As a result, they successfully achieved uniform stretching up to 200% (twice the original length) in all areas of a 7\u00d77 pixel array. Additionally, the researchers implemented a &#8220;strain stopper&#8221;\u2014a rigid structure embedded in specific areas of the material\u2014to suppress undesired deformation in certain directions. This marks the first successful demonstration of fully controlled, uniform, multi-directional stretching across a multi-pixel stretchable display system.<\/p>\n<p>The team further integrated a chiral liquid crystal elastomer (CLCE)\u2014an intrinsically stretchable and also mechanochromic material that changes color in response to mechanical stress. By combining CLCEs with their kirigami-structured platform, they developed a stretchable display capable of revealing hidden patterns only when stretched, a feature with strong potential in encryption and anti-counterfeiting applications.<\/p>\n<p>The CLCEs also exhibit circular polarization selectivity, enabling high-level optical security. When paired with a polarization filter, the display shows different colors or patterns depending on the viewing angle, allowing for dynamic, angle-dependent, secure information display. This technology could enable encrypted displays that are invisible to the naked eye but detectable using special optical equipment.<\/p>\n<div class=\"article-gallery lightGallery\">\n<div data-thumb=\"https:\/\/scx1.b-cdn.net\/csz\/news\/tmb\/2025\/postech-solves-core-ch-1.jpg\" data-src=\"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2025\/postech-solves-core-ch-1.jpg\" data-sub-html=\"Optimization of unit CLCE-shape design and initial substrate for optimal strain-induced, color-band shift. A) Color shift effect of shape variation of CLCEs (\u03b5 = 3). Color variation of effect on structure of C) initial substrate length (\u03b5 = 0.5), and D) initial substrate width (\u03b5 = 1). Credit: &lt;i&gt;Advanced Functional Materials&lt;\/i&gt; (2024). DOI: 10.1002\/adfm.202422772\">\n<figure class=\"article-img text-center\">\n            <img decoding=\"async\" src=\"https:\/\/scx1.b-cdn.net\/csz\/news\/800a\/2025\/postech-solves-core-ch-1.jpg\" alt=\"POSTECH solves core challenge in stretchable displays with uniform multi-pixel strain control\" title=\"Optimization of unit CLCE-shape design and initial substrate for optimal strain-induced, color-band shift. A) Color shift effect of shape variation of CLCEs (\u03b5 = 3). Color variation of effect on structure of C) initial substrate length (\u03b5 = 0.5), and D) initial substrate width (\u03b5 = 1). Credit: Advanced Functional Materials (2024). DOI: 10.1002\/adfm.202422772\"\/><figcaption class=\"text-left text-darken text-truncate text-low-up mt-3\">\n                Optimization of unit CLCE-shape design and initial substrate for optimal strain-induced, color-band shift. A) Color shift effect of shape variation of CLCEs (\u03b5 = 3). Color variation of effect on structure of C) initial substrate length (\u03b5 = 0.5), and D) initial substrate width (\u03b5 = 1). Credit: <i>Advanced Functional Materials<\/i> (2024). DOI: 10.1002\/adfm.202422772<br \/>\n            <\/figcaption><\/figure>\n<\/p><\/div>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"Toward_real-world_applications\"><\/span>Toward real-world applications<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>This research not only solves a long-standing mechanical issue in stretchable displays but also opens doors to new applications in wearable electronics, flexible displays, and data security. By demonstrating a working system that combines uniform mechanical performance and advanced optical functionality, the team provides a foundation for future commercial stretchable devices.<\/p>\n<p>Professor Choi commented, &#8220;By addressing the challenge of non-uniform deformation, this work greatly enhances the practical potential of intrinsically stretchable materials such as silicone, rubber, and artificial skin. It will also contribute significantly to the development of stretchable optical components and secure display technologies.&#8221;<\/p>\n<div class=\"article-main__more p-4\">\n<p><strong>More information:<\/strong><br \/>\n\t\t\t\t\t\t\t\t\t\t\t\tJun Hyuk Shin et al, Optimized and Uniform Strain Control in Intrinsic Stretchable Mechanochromic Materials with Color\u2010 and Polarization\u2010Separating Encryption Using Kirigami Cuts and Rigid Strain\u2010Stoppers, <i>Advanced Functional Materials<\/i> (2024). <a rel=\"nofollow\" target=\"_blank\" data-doi=\"1\" href=\"https:\/\/dx.doi.org\/10.1002\/adfm.202422772\" target=\"_blank\">DOI: 10.1002\/adfm.202422772<\/a><\/p>\n<\/p><\/div>\n<div class=\"d-inline-block text-medium my-4\">\n                                                Provided by<br \/>\n                                                                                                    Pohang University of Science and Technology<br \/>\n                                                    \t\t\t\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" target=\"_blank\" class=\"icon_open\" href=\"https:\/\/international.postech.ac.kr\/\" target=\"_blank\" rel=\"nofollow\"><br \/>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<svg>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<use href=\"https:\/\/techx.b-cdn.net\/tmpl\/v2\/img\/svg\/sprite.svg#icon_open\" x=\"0\" y=\"0\"\/>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/svg><br \/>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/a><\/p><\/div>\n<p>                                        <!-- print only --><\/p>\n<div class=\"d-none d-print-block\">\n<p>\n                                                <strong>Citation<\/strong>:<br \/>\n                                                Kirigami-inspired design enables uniform 200% stretch in multi-pixel display arrays (2025, June 12)<br \/>\n                                                retrieved 12 June 2025<br \/>\n                                                from https:\/\/techxplore.com\/<a href=\"https:\/\/buradabiliyorum.com\/en\/category\/news\/\" data-internallinksmanager029f6b8e52c=\"2\" title=\"News\" target=\"_blank\" rel=\"noopener\">news<\/a>\/2025-06-kirigami-enables-uniform-multi-pixel.html\n                                            <\/p>\n<p>\n                                            This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no<br \/>\n                                            part may be reproduced without the written permission. The content is provided for information purposes only.\n                                            <\/p>\n<\/p><\/div>\n<\/p><\/div>\n<p><script id=\"facebook-jssdk\" async=\"\" src=\"https:\/\/connect.facebook.net\/en_US\/sdk.js\"><\/script><\/p>\n<blockquote><p><strong><span style=\"color: #ff6600;\">If you liked the article, do not forget to share it with your friends. Follow us on\u00a0<span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/news.google.com\/publications\/CAAqBwgKMN63nwsw68G3Aw\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Google News<\/a><\/span>\u00a0too, click on the star and choose us from your favorites.<\/span><\/strong><\/p><\/blockquote>\n<blockquote>\n<p style=\"text-align: center;\"><strong>If you want to read more Like this articles, you can visit our <span style=\"color: #ff9900;\"><a style=\"color: #ff9900;\" href=\"https:\/\/en.buradabiliyorum.com\/category\/sciencee\/\" target=\"_blank\" >Science category.<\/a><\/span><\/strong><\/p>\n<\/blockquote>\n<p><span style=\"color: black;\"><a style=\"color: #ff9900;\" href=\"https:\/\/techxplore.com\/news\/2025-06-kirigami-enables-uniform-multi-pixel.html\" target=\"_blank\" >Source<\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Visualization of encrypted numeric patterns enabled by uniform strain distribution and polarization filtering. Credit: POSTECH A research team at POSTECH (Pohang University of Science and Technology) has successfully developed the world&#8217;s first technology that enables uniform and even stretching across multiple pixels in a stretchable display. This breakthrough overcomes a critical challenge in the field&#8230;<\/p>\n","protected":false},"author":1,"featured_media":674801,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2025\/postech-solves-core-ch.jpg","fifu_image_alt":"","footnotes":""},"categories":[16],"tags":[],"class_list":["post-674798","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sciencee"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/674798","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=674798"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/674798\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media\/674801"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=674798"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=674798"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=674798"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}