<ul data-eligibleForWebStory="true">Researchers in South Korea develop a breakthrough in stretchable screen technology inspired by kirigami.The team creates the world's first stretchable display that can expand evenly up to twice its size without losing quality.Featured in Advanced Functional Materials, the stretchable screens could revolutionize display technology.Flexible screens face challenges with uneven stretching causing distorted images.Current flexible screens use hard parts connected by wires, limiting expansion and quality.Soft, rubbery materials are more ideal for stretchable displays but stretch unevenly.POSTECH team uses kirigami-inspired cuts on rubbery material to enable even stretching.The tiny cuts help spread stretching force evenly across the screen, maintaining uniformity.Adding 'strain stoppers' helps control and limit stretch directions for better screen behavior.Special material used, chiral liquid crystal elastomer (CLCE), changes color when stretched, ideal for security applications.CLCE allows for displaying hidden patterns visible only when stretched, enhancing security measures.The innovative approach opens possibilities for wearable tech, secure devices, and flexible displays.Professor Su Seok Choi highlights solving uneven stretching as crucial for practical stretchable screens.