{"id":180435,"date":"2025-10-29T08:58:12","date_gmt":"2025-10-29T08:58:12","guid":{"rendered":"https:\/\/teknomers.com\/en\/they-have-developed-a-pixel-so-tiny-that-it-can-fit-on-the-tip-of-a-pin\/"},"modified":"2025-10-29T08:58:13","modified_gmt":"2025-10-29T08:58:13","slug":"they-have-developed-a-pixel-so-tiny-that-it-can-fit-on-the-tip-of-a-pin","status":"publish","type":"post","link":"https:\/\/teknomers.com\/en\/they-have-developed-a-pixel-so-tiny-that-it-can-fit-on-the-tip-of-a-pin\/","title":{"rendered":"They have developed a pixel so tiny that it can fit on the tip of a pin."},"content":{"rendered":"\n<p>We&#8217;ve been talking about \u00a0smart glasses\u00a0 for years, but the big obstacle has always been the same: the screen is still too big to go unnoticed. At the \u00a0University of W\u00fcrzburg\u00a0, a group of physicists assures having manufactured the \u201c\u00a0smallest light-emitting pixel in the world\u00a0,\u201d a light point that measures about 300 by 300 nanometers and that, even with that size, reaches, according to the team, the brightness of a conventional \u00a05 by 5 micrometer OLED pixel\u00a0. If the technology can scale, a complete \u00a0microdisplay\u00a0 could be practically integrated into the frame of glasses, invisible to the naked eye.<\/p>\n<p><!-- BREAK 1 --> <\/p>\n<p>The advance comes from Germany, where a team led by \u00a0physicists Bert Hecht and Jens Pflaum\u00a0 has managed to reduce OLED technology to a scale never before achieved. Your work was published on \u00a0October 22, 2025\u00a0, in *Science Advances* and describes a method for fabricating \u00a0ultra-compact light-emitting pixels\u00a0 using optical antennas. The goal is not just to demonstrate that they work, but to lay the foundation for a new generation of \u00a0projection modules\u00a0 for smart glasses and other \u00a0wearable devices\u00a0.<\/p>\n<p><!-- BREAK 2 --><\/p>\n<p><strong>A tiny pixel, big brightness.<\/strong> More than a question of size, the discovery lies in the \u00a0luminous intensity\u00a0 that they have managed to maintain by miniaturizing the structure. The result points to very \u00a0high resolutions\u00a0 in practically imperceptible spaces. In a device of this type, the panel is not seen from the front: it acts as a light source that projects the image onto the lens, which allows the \u00a0projection system\u00a0 to be integrated into areas as discreet as the frame of glasses.<\/p>\n<p><!-- BREAK 3 -->  <\/p>\n<div class=\"article-asset-image article-asset-normal article-asset-center\">\n<div class=\"asset-content\">\n<div class=\"caption-img \">\n<p>   <img decoding=\"async\" alt=\"Scheme\" class=\"centro_sinmarco\" src=\"https:\/\/teknomers.com\/en\/wp-content\/uploads\/2025\/10\/They-have-developed-a-pixel-so-tiny-that-it-can.jpeg\"\/><\/p>\n<pre><code>    &lt;span&gt;Scheme of the nanopixel developed in W\u00fcrzburg&lt;\/span&gt;<\/code><\/pre>\n<\/div><\/div>\n<\/div>\n<p><strong>High resolution in no space.<\/strong> Reducing a light source to \u00a0nanometric dimensions\u00a0 without losing power is not only a question of miniaturization but of \u00a0materials engineering\u00a0. The team has shown that it is possible to guide the current and optimize the emission in a structure where space barely allows room for error. With this control, OLED technology enters a new phase, in which pixels cease to be discrete elements and become \u00a0optical components\u00a0 with antenna behavior.<\/p>\n<p><!-- BREAK 4 --><\/p>\n<p>To achieve this, the researchers had to completely \u00a0redesign the way\u00a0 current flows within the pixel. In previous attempts, electricity was concentrated at the edges and ended up damaging the material, like lightning that always seeks the shortest path. Their solution was to add a thin insulating layer that blocks these leaks and leaves a tiny central opening through which the current passes in a controlled manner. This way they achieved a \u00a0stable emission\u00a0 without the pixel being destroyed over time.<\/p>\n<p><!-- BREAK 5 --><\/p>\n<div class=\"article-asset article-asset-normal article-asset-center\">\n<div class=\"desvio-container\">\n<div class=\"desvio\">\n<div class=\"desvio-figure js-desvio-figure\">\n<pre><code> &lt;img alt=\"After cell phones, cars, robots, and AI, comes China\u2019s next great technological avalanche: glasses\" width=\"375\" height=\"142\" src=\"https:\/\/i.blogs.es\/7b1af8\/inmo-go12\/375_142.jpeg\"\/&gt;<\/code><\/pre>\n<\/div>\n<\/div><\/div>\n<\/div>\n<p><strong>Efficiency and color.<\/strong> Although the prototype demonstrates solid \u00a0operating density\u00a0 and stability, its \u00a0external quantum efficiency\u00a0 is as low as 1%. The researchers hope to improve that figure by optimizing \u00a0organic materials\u00a0 and \u00a0antenna architecture\u00a0, and plan to expand the \u00a0emission spectrum\u00a0 to all three primary colors. Only then could this technology be considered ready for the next generation of portable \u00a0microdisplays\u00a0.<\/p>\n<p><!-- BREAK 6 --> <\/p>\n<p>Images | Xataka with Gemini 2.5 | <a rel=\"noopener, noreferrer nofollow\" href=\"https:\/\/unsplash.com\/es\/fotos\/luces-led-verdes-AuWSzM7kZDA\" target=\"_blank\">Isis France<\/a><\/p>\n<p>In Xataka | \u00a0Xiaomi AI Glasses\u00a0 are much more than Ray-Ban Meta because they are not just a product. They are a platform.<\/p>\n<p><br \/>\n<br \/><a href=\"https:\/\/teknomers.com\/category\/general\/\" rel=\"dofollow\">General News &#8211; 2<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>We&#8217;ve been talking about \u00a0smart glasses\u00a0 for years, but the big obstacle has always been the same: the screen is still too big to go unnoticed. At the \u00a0University of W\u00fcrzburg\u00a0, a group of physicists assures having manufactured the \u201c\u00a0smallest light-emitting pixel in the world\u00a0,\u201d a light point that measures about 300 by 300 nanometers [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":180436,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[36399],"tags":[8964,12600,44367,37385,22267,2073],"class_list":["post-180435","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technology","tag-developed","tag-fit","tag-pin","tag-pixel","tag-tiny","tag-tip"],"_links":{"self":[{"href":"https:\/\/teknomers.com\/en\/wp-json\/wp\/v2\/posts\/180435","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/teknomers.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/teknomers.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/teknomers.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/teknomers.com\/en\/wp-json\/wp\/v2\/comments?post=180435"}],"version-history":[{"count":0,"href":"https:\/\/teknomers.com\/en\/wp-json\/wp\/v2\/posts\/180435\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/teknomers.com\/en\/wp-json\/wp\/v2\/media\/180436"}],"wp:attachment":[{"href":"https:\/\/teknomers.com\/en\/wp-json\/wp\/v2\/media?parent=180435"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/teknomers.com\/en\/wp-json\/wp\/v2\/categories?post=180435"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/teknomers.com\/en\/wp-json\/wp\/v2\/tags?post=180435"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}