{"id":31423,"date":"2026-09-20T08:42:09","date_gmt":"2026-09-20T08:42:09","guid":{"rendered":"https:\/\/jiclcd.com\/?p=31423"},"modified":"2026-09-20T08:42:11","modified_gmt":"2026-09-20T08:42:11","slug":"tft-display-construction-and-working","status":"publish","type":"post","link":"https:\/\/jiclcd.com\/es\/tft-display-construction-and-working\/","title":{"rendered":"Estructura y funcionamiento de una pantalla TFT"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u00cdndice<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Alternar tabla de contenidos\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" 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: #999;color:#999\" 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><\/span><\/a><\/span><\/div>\n<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:\/\/jiclcd.com\/es\/tft-display-construction-and-working\/#Structure_of_a_TFT_Display\" >Estructura de una pantalla TFT<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/jiclcd.com\/es\/tft-display-construction-and-working\/#Working_Principle_of_a_TFT_Display\" >Principio de funcionamiento de una pantalla TFT<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/jiclcd.com\/es\/tft-display-construction-and-working\/#Applications_of_TFT_Displays\" >Aplicaciones de las pantallas TFT<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Structure_of_a_TFT_Display\"><\/span>Estructura de una pantalla TFT<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>La estructura central de un <a href=\"https:\/\/jiclcd.com\/es\/tft-lcd-module\/\" data-type=\"link\" data-id=\"https:\/\/jiclcd.com\/tft-lcd-module\/\">Pantalla TFT<\/a> Se compone principalmente de un m\u00f3dulo de retroiluminaci\u00f3n, un polarizador inferior, un sustrato TFT, una capa de cristal l\u00edquido, un sustrato de filtro de color y un polarizador superior.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>M\u00f3dulo de retroiluminaci\u00f3n: Los cristales l\u00edquidos no emiten luz por s\u00ed mismos; el m\u00f3dulo de retroiluminaci\u00f3n act\u00faa como \u201cfuente de luz\u201d detr\u00e1s de la pantalla, proporcionando una iluminaci\u00f3n uniforme y suficiente para permitir una visualizaci\u00f3n adecuada de la imagen. Este m\u00f3dulo determina la calidad de la visualizaci\u00f3n e influye tanto en el coste como en el consumo energ\u00e9tico.<\/li>\n\n\n\n<li>Polarizador inferior: Filtra la luz natural ca\u00f3tica emitida por la retroiluminaci\u00f3n y la convierte en luz polarizada linealmente \u2014que vibra en una sola direcci\u00f3n\u2014 antes de transmitirla a la capa de cristal l\u00edquido.<\/li>\n\n\n\n<li>Sustrato TFT: Su funci\u00f3n principal es actuar como \u201ccapa de control de conmutaci\u00f3n\u201d de la pantalla, lo que permite controlar cada p\u00edxel de forma independiente y precisa para generar una imagen n\u00edtida y estable.<\/li>\n\n\n\n<li>Capa de cristal l\u00edquido: Su funci\u00f3n principal es actuar como interruptor de luz y regulador de la escala de grises. No emite luz por s\u00ed misma, sino que utiliza tensi\u00f3n el\u00e9ctrica para modificar la alineaci\u00f3n molecular, controlando as\u00ed la intensidad de la retroiluminaci\u00f3n que atraviesa cada p\u00edxel para crear distintos niveles de luminosidad y oscuridad.<\/li>\n\n\n\n<li>Sustrato del filtro de color: su funci\u00f3n principal es dividir la luz blanca de la retroiluminaci\u00f3n en los tres colores primarios \u2014rojo, verde y azul\u2014 y combinarlos seg\u00fan los requisitos de los p\u00edxeles para generar una imagen a todo color.<\/li>\n\n\n\n<li>Polarizador superior: suele estar orientado en un \u00e1ngulo de 90\u00b0 con respecto al polarizador inferior; solo deja pasar la luz polarizada en su propia direcci\u00f3n, mientras que absorbe la luz polarizada en otras direcciones, creando as\u00ed un efecto de \u201cobturador de luz\u201d.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Working_Principle_of_a_TFT_Display\"><\/span>Principio de funcionamiento de una pantalla TFT<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>El funcionamiento de una pantalla TFT se basa en las propiedades \u00f3pticas de los cristales l\u00edquidos y en el control el\u00e9ctrico que proporcionan los transistores de pel\u00edcula fina (TFT). B\u00e1sicamente, se utilizan se\u00f1ales el\u00e9ctricas para controlar con precisi\u00f3n la alineaci\u00f3n de las mol\u00e9culas de cristal l\u00edquido, modulando la cantidad de luz de fondo que las atraviesa para, en \u00faltima instancia, formar una imagen en color en la pantalla. En una pantalla de matriz activa, cada p\u00edxel est\u00e1 emparejado con un transistor que incluye un condensador, lo que permite que cada subp\u00edxel conserve su carga el\u00e9ctrica. Las pantallas TFT-LCD integran un transistor de pel\u00edcula delgada (TFT) independiente en cada posici\u00f3n de p\u00edxel; este transistor act\u00faa como un interruptor en miniatura, controlando con precisi\u00f3n la tensi\u00f3n aplicada a las mol\u00e9culas de cristal l\u00edquido dentro de ese p\u00edxel. Su principio de funcionamiento b\u00e1sico consiste en que las mol\u00e9culas de cristal l\u00edquido giran la direcci\u00f3n de polarizaci\u00f3n de la luz para permitir la transmisi\u00f3n (creando un \u201cestado claro\u201d) en el estado inicial, mientras que se retuercen para bloquear la transmisi\u00f3n de la luz (creando un \u201cestado oscuro\u201d) al aplicar un campo el\u00e9ctrico; el control de la escala de grises se consigue regulando con precisi\u00f3n la tensi\u00f3n aplicada a cada subp\u00edxel. La visualizaci\u00f3n en color se basa en un tr\u00edo de subp\u00edxeles adyacentes de color rojo (R), verde (G) y azul (B), combinados con un filtro de color superpuesto, que mezcla los colores controlando de forma independiente los niveles de escala de grises de estos tres subp\u00edxeles. Los transistores de pel\u00edcula delgada (TFT) cumplen dos funciones principales: el control de conmutaci\u00f3n \u2014que regula la conmutaci\u00f3n y la entrada de datos de cada TFT a trav\u00e9s de una red matricial de l\u00edneas de exploraci\u00f3n de filas y l\u00edneas de datos de columnas\u2014 y la retenci\u00f3n de tensi\u00f3n, en la que un condensador de almacenamiento retiene temporalmente la tensi\u00f3n mientras el TFT est\u00e1 apagado para garantizar la estabilidad de las mol\u00e9culas de cristal l\u00edquido.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Applications_of_TFT_Displays\"><\/span>Aplicaciones de las pantallas TFT<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Las pantallas TFT ofrecen importantes <a href=\"https:\/\/jiclcd.com\/es\/tft-display-pros-and-cons\/\" data-type=\"link\" data-id=\"https:\/\/jiclcd.com\/tft-display-pros-and-cons\/\">ventajas<\/a> en la reproducci\u00f3n del color y se utilizan ampliamente en diversos sectores, entre los que se incluyen los sistemas dom\u00e9sticos inteligentes, los electrodom\u00e9sticos, los equipos de control industrial, el Internet industrial, las pantallas para el sector de la automoci\u00f3n, los dispositivos m\u00e9dicos, los equipos para exteriores, la rob\u00f3tica inteligente, la electr\u00f3nica de consumo y los dispositivos wearables inteligentes.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/04\/TFT-59-1.png.webp\" alt=\"\"\/><\/figure>","protected":false},"excerpt":{"rendered":"<p>Structure of a TFT Display The core structure of a TFT display consists primarily of a backlight module, a bottom polarizer, a TFT substrate, a liquid crystal layer, a color filter substrate, and a top polarizer. Working Principle of a TFT Display The operation of a TFT display relies on the optical properties of liquid [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":26405,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[110],"tags":[],"class_list":["post-31423","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tft-lcd"],"blocksy_meta":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>tft display construction and working - Jictech<\/title>\n<meta name=\"description\" content=\"The core structure of a TFT display consists primarily of a backlight module, a bottom polarizer, a TFT substrate, a liquid crystal layer, a color filter substrate, and a top polarizer.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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