{"id":30969,"date":"2026-08-07T07:35:48","date_gmt":"2026-08-07T07:35:48","guid":{"rendered":"https:\/\/jiclcd.com\/?p=30969"},"modified":"2026-08-07T07:39:01","modified_gmt":"2026-08-07T07:39:01","slug":"lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide","status":"publish","type":"post","link":"https:\/\/jiclcd.com\/es\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/","title":{"rendered":"Manchas blancas en la pantalla LCD: causas, tipos y c\u00f3mo solucionarlas (Gu\u00eda 2026)"},"content":{"rendered":"<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1771\" height=\"1024\" src=\"https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/01_hero_white_spots_guide-1771x1024.webp\" alt=\"gu\u00eda_de_las_manchas_blancas\" class=\"wp-image-30970\" srcset=\"https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/01_hero_white_spots_guide-1771x1024.webp 1771w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/01_hero_white_spots_guide-300x173.webp 300w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/01_hero_white_spots_guide-150x87.webp 150w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/01_hero_white_spots_guide-768x444.webp 768w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/01_hero_white_spots_guide-1536x888.webp 1536w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/01_hero_white_spots_guide-18x10.webp 18w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/01_hero_white_spots_guide-500x289.webp 500w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/01_hero_white_spots_guide-600x347.webp 600w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/01_hero_white_spots_guide.webp 1780w\" sizes=\"(max-width: 1771px) 100vw, 1771px\" \/><figcaption class=\"wp-element-caption\">gu\u00eda_de_las_manchas_blancas<\/figcaption><\/figure>\n\n\n\n<p><strong>Respuesta r\u00e1pida:<\/strong> Las manchas blancas en las pantallas LCD son zonas brillantes e irregulares que aparecen cuando la luz de fondo se filtra a trav\u00e9s de huecos en la capa de cristal l\u00edquido, la placa difusora o la pel\u00edcula polarizadora. Suelen estar causadas por presi\u00f3n f\u00edsica, estr\u00e9s t\u00e9rmico, defectos de fabricaci\u00f3n o el envejecimiento de los componentes de la luz de fondo. Aunque algunas manchas provocadas por la presi\u00f3n pueden desaparecer, la mayor\u00eda de las manchas blancas requieren la reparaci\u00f3n o sustituci\u00f3n del panel. En el caso de las aplicaciones industriales y m\u00e9dicas, la prevenci\u00f3n mediante <strong>uni\u00f3n \u00f3ptica<\/strong> y un dise\u00f1o mec\u00e1nico reforzado es la soluci\u00f3n m\u00e1s fiable.<\/p>\n\n\n\n<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\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#What_Are_LCD_White_Spots\" >\u00bfQu\u00e9 son las manchas blancas en las pantallas LCD?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/jiclcd.com\/es\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#The_Physics_Behind_White_Spots\" >La f\u00edsica que hay detr\u00e1s de las manchas blancas<\/a><\/li><\/ul><\/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\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#Common_Causes_of_White_Spots_on_LCD_Screens\" >Causas habituales de las manchas blancas en las pantallas LCD<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/jiclcd.com\/es\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#1_Physical_Pressure_or_Impact\" >1. Presi\u00f3n f\u00edsica o impacto<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/jiclcd.com\/es\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#2_Backlight_Diffuser_Plate_Shift\" >2. Desplazamiento de la placa difusora de la retroiluminaci\u00f3n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/jiclcd.com\/es\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#3_Thermal_Stress_and_Aging\" >3. Esfuerzo t\u00e9rmico y envejecimiento<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/jiclcd.com\/es\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#4_Manufacturing_Defects\" >4. Defectos de fabricaci\u00f3n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/jiclcd.com\/es\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#5_Moisture_Ingress\" >5. Entrada de humedad<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/jiclcd.com\/es\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#6_LED_Backlight_Degradation\" >6. Deterioro de la retroiluminaci\u00f3n LED<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/jiclcd.com\/es\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#Types_of_LCD_White_Spots\" >Tipos de manchas blancas en las pantallas LCD<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/jiclcd.com\/es\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#White_Spots_vs_Other_LCD_Defects\" >Manchas blancas frente a otros defectos de las pantallas LCD<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/jiclcd.com\/es\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#How_to_Fix_White_Spots_on_LCD_Screens\" >C\u00f3mo solucionar las manchas blancas en las pantallas LCD<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/jiclcd.com\/es\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#Method_1_Gentle_Pressure_Massage_Pressure_Spots_Only\" >M\u00e9todo 1: Masaje con presi\u00f3n suave (solo en los puntos de presi\u00f3n)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/jiclcd.com\/es\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#Method_2_Pixel_Refresh_Inversion_Cycle\" >M\u00e9todo 2: Ciclo de actualizaci\u00f3n e inversi\u00f3n de p\u00edxeles<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/jiclcd.com\/es\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#Method_3_Diffuser_Plate_Realignment_Professional_Repair\" >M\u00e9todo 3: Reajuste de la placa difusora (reparaci\u00f3n profesional)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/jiclcd.com\/es\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#Method_4_Backlight_Unit_Replacement\" >M\u00e9todo 4: Sustituci\u00f3n de la unidad de retroiluminaci\u00f3n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/jiclcd.com\/es\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#Method_5_Panel_Replacement\" >M\u00e9todo 5: Sustituci\u00f3n del panel<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/jiclcd.com\/es\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#Prevention_Avoiding_White_Spots_in_Industrial_Displays\" >Prevenci\u00f3n: c\u00f3mo evitar las manchas blancas en las pantallas industriales<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/jiclcd.com\/es\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#1_Optical_Bonding\" >1. Uni\u00f3n \u00f3ptica<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/jiclcd.com\/es\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#2_Reinforced_Mechanical_Design\" >2. Dise\u00f1o mec\u00e1nico reforzado<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/jiclcd.com\/es\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#3_Wide-Temperature_Component_Selection\" >3. Selecci\u00f3n de componentes para un amplio rango de temperaturas<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/jiclcd.com\/es\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#4_AOI_and_100_Uniformity_Testing\" >4. Pruebas de uniformidad de AOI y 100%<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/jiclcd.com\/es\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#5_Proper_Packaging_and_Handling\" >5. Embalaje y manipulaci\u00f3n adecuados<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/jiclcd.com\/es\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#When_to_Repair_vs_Replace\" >Cu\u00e1ndo reparar y cu\u00e1ndo sustituir<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/jiclcd.com\/es\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#People_Also_Ask_FAQ\" >Preguntas frecuentes (FAQ)<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/jiclcd.com\/es\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#Are_LCD_white_spots_permanent\" >\u00bfLas manchas blancas en las pantallas LCD son permanentes?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/jiclcd.com\/es\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#Can_white_spots_spread_over_time\" >\u00bfPueden extenderse las manchas blancas con el tiempo?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/jiclcd.com\/es\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#Do_white_spots_mean_my_LCD_is_dying\" >\u00bfLas manchas blancas significan que mi pantalla LCD se est\u00e1 estropeando?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/jiclcd.com\/es\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#Can_pressure_cause_white_spots_on_an_LCD\" >\u00bfPuede la presi\u00f3n provocar la aparici\u00f3n de manchas blancas en una pantalla LCD?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"https:\/\/jiclcd.com\/es\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#How_much_does_it_cost_to_fix_white_spots_on_an_LCD\" >\u00bfCu\u00e1nto cuesta arreglar las manchas blancas en una pantalla LCD?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-31\" href=\"https:\/\/jiclcd.com\/es\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#Are_white_spots_covered_by_warranty\" >\u00bfLas manchas blancas est\u00e1n cubiertas por la garant\u00eda?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-32\" href=\"https:\/\/jiclcd.com\/es\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#Can_white_spots_appear_on_brand-new_LCD_displays\" >\u00bfPueden aparecer manchas blancas en las pantallas LCD nuevas?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-33\" href=\"https:\/\/jiclcd.com\/es\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#Whats_the_difference_between_white_spots_and_backlight_bleeding\" >\u00bfCu\u00e1l es la diferencia entre las manchas blancas y el sangrado de la luz de fondo?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-34\" href=\"https:\/\/jiclcd.com\/es\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#Can_software_fix_white_spots_on_an_LCD\" >\u00bfSe pueden corregir las manchas blancas de una pantalla LCD mediante un programa inform\u00e1tico?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-35\" href=\"https:\/\/jiclcd.com\/es\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#How_do_I_test_my_LCD_for_white_spots\" >\u00bfC\u00f3mo puedo comprobar si mi pantalla LCD tiene manchas blancas?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-36\" href=\"https:\/\/jiclcd.com\/es\/lcd-white-spots-on-screen-causes-types-how-to-fix-them-2026-guide\/#Conclusion\" >Conclusi\u00f3n<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Are_LCD_White_Spots\"><\/span>\u00bfQu\u00e9 son las manchas blancas en las pantallas LCD?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><a href=\"https:\/\/jiclcd.com\/es\/tft-lcd-module\/\" data-type=\"link\" data-id=\"https:\/\/jiclcd.com\/tft-lcd-module\/\">LCD<\/a> manchas blancas (tambi\u00e9n llamadas <strong>manchas blancas<\/strong>, <strong>nublarse<\/strong>, o <strong>fuga de luz<\/strong>) son zonas brillantes visibles en una pantalla en las que la luz de fondo atraviesa el panel de forma desigual. A diferencia de los p\u00edxeles muertos \u2014que aparecen como peque\u00f1os puntos negros\u2014, las manchas blancas suelen ser m\u00e1s grandes (de 2 mm a 20 mm) y var\u00edan en forma e intensidad.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1601\" height=\"1024\" src=\"https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/02_lcd_layer_structure-1601x1024.webp\" alt=\"\" class=\"wp-image-30971\" srcset=\"https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/02_lcd_layer_structure-1601x1024.webp 1601w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/02_lcd_layer_structure-300x192.webp 300w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/02_lcd_layer_structure-150x96.webp 150w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/02_lcd_layer_structure-768x491.webp 768w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/02_lcd_layer_structure-1536x982.webp 1536w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/02_lcd_layer_structure-2048x1310.webp 2048w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/02_lcd_layer_structure-18x12.webp 18w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/02_lcd_layer_structure-500x320.webp 500w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/02_lcd_layer_structure-600x384.webp 600w\" sizes=\"(max-width: 1601px) 100vw, 1601px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The_Physics_Behind_White_Spots\"><\/span>La f\u00edsica que hay detr\u00e1s de las manchas blancas<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Una pantalla LCD TFT est\u00e1ndar est\u00e1 compuesta por varias capas de alta precisi\u00f3n:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Unidad de retroiluminaci\u00f3n (BLU)<\/strong> \u2014 Tiras de LED o tubos CCFL que proporcionan iluminaci\u00f3n<\/li>\n\n\n\n<li><strong>Placa difusora \/ Placa gu\u00eda de luz (LGP)<\/strong> \u2014 Distribuye la luz de manera uniforme por todo el panel<\/li>\n\n\n\n<li><strong>Capa de cristal l\u00edquido<\/strong> \u2014 Controla la transmisi\u00f3n de la luz mediante la alineaci\u00f3n molecular<\/li>\n\n\n\n<li><strong>L\u00e1minas polarizadoras<\/strong> \u2014 Filtrar las ondas de luz para crear im\u00e1genes<\/li>\n\n\n\n<li><strong>Matriz de filtros de color<\/strong> \u2014 A\u00f1ade subp\u00edxeles RGB<\/li>\n<\/ol>\n\n\n\n<p>Las manchas blancas aparecen cuando se altera esta estructura \u00f3ptica. Por ejemplo, si el <strong>desplazamientos de la placa difusora<\/strong> aunque sea de tan solo 0,5 mm debido a la dilataci\u00f3n t\u00e9rmica o a un impacto mec\u00e1nico, la luz se concentra en una zona en lugar de distribuirse de manera uniforme. Del mismo modo, si el <strong>capa de cristal l\u00edquido<\/strong> Cuando se produce una presi\u00f3n localizada, las mol\u00e9culas no logran girar correctamente, lo que permite que pase un exceso de luz.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>Conclusi\u00f3n clave:<\/strong> En las pantallas industriales que funcionan las 24 horas del d\u00eda, los 7 d\u00edas de la semana, los ciclos t\u00e9rmicos (calentamiento y enfriamiento) son la principal causa del desplazamiento de la placa difusora y de la formaci\u00f3n de manchas blancas.<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Common_Causes_of_White_Spots_on_LCD_Screens\"><\/span>Causas habituales de las manchas blancas en las pantallas LCD <span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Es fundamental comprender la causa principal para determinar si una pieza se puede reparar o si hay que sustituirla.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Physical_Pressure_or_Impact\"><\/span>1. Presi\u00f3n f\u00edsica o impacto<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>La causa m\u00e1s habitual en los dispositivos de consumo. Cuando se ejerce presi\u00f3n sobre la pantalla \u2014por ejemplo, al cerrar un port\u00e1til con restos de suciedad en el teclado, al dejar caer un dispositivo o al apilar objetos pesados sobre un monitor\u2014, la <strong>la capa de cristal l\u00edquido se comprime<\/strong> y el <strong>la placa difusora se deforma<\/strong>. Incluso despu\u00e9s de eliminar la presi\u00f3n, la memoria el\u00e1stica de las pel\u00edculas \u00f3pticas puede hacer que se mantenga una zona brillante.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Tama\u00f1o habitual:<\/strong> Manchas circulares o irregulares de 3 a 10 mm<\/li>\n\n\n\n<li><strong>Probabilidad de recuperaci\u00f3n:<\/strong> De leve a moderada (puede desaparecer con el paso de los d\u00edas, pero suele ser permanente)<\/li>\n\n\n\n<li><strong>Com\u00fan en:<\/strong> Ordenadores port\u00e1tiles, tabletas, dispositivos port\u00e1tiles, pantallas para autom\u00f3viles<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Backlight_Diffuser_Plate_Shift\"><\/span>2. Desplazamiento de la placa difusora de la retroiluminaci\u00f3n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>En las pantallas LCD con retroiluminaci\u00f3n lateral, el <strong>placa gu\u00eda de luz (LGP)<\/strong> y las l\u00e1minas difusoras se sujetan mediante fr\u00e1giles marcos de pl\u00e1stico. Con el paso del tiempo, la dilataci\u00f3n t\u00e9rmica, las vibraciones o un montaje deficiente pueden provocar que estas l\u00e1minas se desplacen fracciones de mil\u00edmetro. Cuando el difusor se aleja del borde del LED, la luz se escapa directamente, creando un punto o una raya blanca brillante.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Tama\u00f1o habitual:<\/strong> Rayas lineales o grandes zonas opacas<\/li>\n\n\n\n<li><strong>Probabilidad de recuperaci\u00f3n:<\/strong> Moderado (a veces se puede recolocar durante la reparaci\u00f3n)<\/li>\n\n\n\n<li><strong>Com\u00fan en:<\/strong> Monitores de gran tama\u00f1o, pantallas de televisi\u00f3n, interfaces hombre-m\u00e1quina (HMI) industriales<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Thermal_Stress_and_Aging\"><\/span>3. Esfuerzo t\u00e9rmico y envejecimiento<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Pantallas LCD industriales que funcionan en <strong>entornos con un amplio rango de temperaturas (de -30 \u00b0C a 80 \u00b0C)<\/strong> se someten a ciclos t\u00e9rmicos repetidos. Esto provoca:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Las capas adhesivas entre las l\u00e1minas \u00f3pticas se degradan<\/li>\n\n\n\n<li>Las placas difusoras pueden deformarse o deslaminarse<\/li>\n\n\n\n<li>Las tiras de retroiluminaci\u00f3n LED se deterioran de forma desigual<\/li>\n<\/ul>\n\n\n\n<p>Tras m\u00e1s de 5.000 horas de funcionamiento, estos microcambios se acumulan formando manchas blancas visibles, sobre todo en las esquinas, donde la disipaci\u00f3n del calor es menor.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Manufacturing_Defects\"><\/span>4. Defectos de fabricaci\u00f3n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>No todas las manchas blancas son causadas por el usuario. Durante el montaje del m\u00f3dulo LCD:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Part\u00edculas extra\u00f1as<\/strong> entre el difusor y el cristal de la pantalla LCD pueden crearse puntos de presi\u00f3n<\/li>\n\n\n\n<li><strong>Aplicaci\u00f3n irregular del adhesivo<\/strong> En el proceso de uni\u00f3n \u00f3ptica pueden quedar atrapadas burbujas de aire que se expanden formando manchas blancas.<\/li>\n\n\n\n<li><strong>Tensi\u00f3n de la l\u00e1mina polarizadora<\/strong> Las irregularidades provocan fugas de luz localizadas<\/li>\n<\/ul>\n\n\n\n<p>Los fabricantes de alta calidad utilizan <strong>AOI (Inspecci\u00f3n \u00f3ptica automatizada)<\/strong> y el montaje en sala limpia (clase ISO 7 o superior) para minimizar estos defectos. Los paneles de gama econ\u00f3mica suelen omitir estos pasos, lo que da lugar a mayores \u00edndices de manchas blancas en condiciones reales de uso.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Moisture_Ingress\"><\/span>5. Entrada de humedad<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>En entornos al aire libre o con mucha humedad, la humedad puede filtrarse a trav\u00e9s de juntas defectuosas. Cuando el vapor de agua se condensa entre el cristal de la pantalla LCD y las l\u00e1minas de retroiluminaci\u00f3n, se produce un <strong>efecto de difusi\u00f3n<\/strong> que se presenta como una mancha blanca y turbia. A diferencia de las marcas de presi\u00f3n, las manchas blancas provocadas por la humedad suelen cambiar de tama\u00f1o en funci\u00f3n de la temperatura.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"6_LED_Backlight_Degradation\"><\/span>6. Deterioro de la retroiluminaci\u00f3n LED<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>En los paneles LED de iluminaci\u00f3n directa, los diodos LED individuales pueden deteriorarse a ritmos diferentes. Si un LED se vuelve significativamente m\u00e1s brillante que los que lo rodean (o si falla el difusor situado encima de \u00e9l), se proyecta como un punto brillante localizado. Esto es m\u00e1s habitual en pantallas con <strong>mala gesti\u00f3n t\u00e9rmica<\/strong> o tiras LED de baja calidad.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Types_of_LCD_White_Spots\"><\/span>Tipos de manchas blancas en las pantallas LCD <span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Tipo<\/th><th>Aspecto<\/th><th>Causa principal<\/th><th>Posibilidad de reparaci\u00f3n<\/th><\/tr><\/thead><tbody><tr><td><strong>Una sola mancha blanca<\/strong><\/td><td>Punto peque\u00f1o, brillante y de contornos bien definidos (2\u20135 mm)<\/td><td>Part\u00edcula bajo el difusor, punto de presi\u00f3n<\/td><td>Bajo<\/td><\/tr><tr><td><strong>Nubosidad \/ Mura<\/strong><\/td><td>Mancha grande, difusa y brillante (10-50 mm)<\/td><td>Desplazamiento del difusor, deformaci\u00f3n t\u00e9rmica<\/td><td>Moderado<\/td><\/tr><tr><td><strong>Sangrado en los bordes<\/strong><\/td><td>Franja brillante a lo largo de uno o varios bordes<\/td><td>Desalineaci\u00f3n de la placa gu\u00eda de luz, holgura en el marco<\/td><td>Moderado<\/td><\/tr><tr><td><strong>Punto de presi\u00f3n<\/strong><\/td><td>Forma irregular, a menudo con un halo arco\u00edris<\/td><td>Impacto f\u00edsico en la capa de LC<\/td><td>Bajo<\/td><\/tr><tr><td><strong>Parche hidratante<\/strong><\/td><td>Nublado, el tama\u00f1o var\u00eda con la temperatura<\/td><td>Fallo de la junta, entrada de humedad<\/td><td>Alta (si se seca pronto)<\/td><\/tr><tr><td><strong>Punto caliente de LED<\/strong><\/td><td>Punto luminoso situado justo encima del LED<\/td><td>Sobrecarga del LED, fallo del difusor<\/td><td>Moderado<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1388\" height=\"1024\" src=\"https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/03_white_spot_types-1388x1024.webp\" alt=\"\" class=\"wp-image-30972\" srcset=\"https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/03_white_spot_types-1388x1024.webp 1388w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/03_white_spot_types-300x221.webp 300w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/03_white_spot_types-150x111.webp 150w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/03_white_spot_types-768x567.webp 768w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/03_white_spot_types-1536x1133.webp 1536w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/03_white_spot_types-16x12.webp 16w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/03_white_spot_types-500x369.webp 500w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/03_white_spot_types-600x443.webp 600w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/03_white_spot_types.webp 2001w\" sizes=\"(max-width: 1388px) 100vw, 1388px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"White_Spots_vs_Other_LCD_Defects\"><\/span>Manchas blancas frente a otros defectos de las pantallas LCD<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Las manchas blancas suelen confundirse con otros problemas de la pantalla. A continuaci\u00f3n te explicamos c\u00f3mo distinguirlas:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Defecto<\/th><th>Aspecto<\/th><th>Causa<\/th><th>Ubicaci\u00f3n<\/th><\/tr><\/thead><tbody><tr><td><strong>White Spot<\/strong><\/td><td>Mancha brillante y difusa; visible sobre fondos oscuros<\/td><td>Fuga de luz de fondo, problema con el difusor<\/td><td>En cualquier lugar de la pantalla<\/td><\/tr><tr><td><strong>P\u00edxel muerto<\/strong><\/td><td>Peque\u00f1o punto negro (un subp\u00edxel o un p\u00edxel completo)<\/td><td>Fallo de un transistor en la matriz TFT<\/td><td>Posici\u00f3n fija, muy peque\u00f1o<\/td><\/tr><tr><td><strong>P\u00edxel atascado<\/strong><\/td><td>Un \u00fanico punto luminoso (rojo, verde, azul o blanco)<\/td><td>Transistor de subp\u00edxel atascado en \u201cencendido\u201d<\/td><td>Posici\u00f3n fija, 1 p\u00edxel<\/td><\/tr><tr><td><strong>Suciedad \/ Manchas<\/strong><\/td><td>Irregular, visible cuando la pantalla est\u00e1 apagada<\/td><td>Contaminaci\u00f3n externa en la superficie del cristal<\/td><td>Se elimina con la limpieza<\/td><\/tr><tr><td><strong>Burbuja de LCD<\/strong><\/td><td>\u00c1rea redonda y elevada con distorsi\u00f3n<\/td><td>Aire atrapado en la capa de uni\u00f3n \u00f3ptica<\/td><td>Normalmente, en el centro o en los bordes<\/td><\/tr><tr><td><strong>Fuga de luz de fondo<\/strong><\/td><td>Brillo uniforme en los bordes del panel<\/td><td>Presi\u00f3n del marco de la pantalla, brillo IPS<\/td><td>Solo bordes<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>Consejo de diagn\u00f3stico:<\/strong> Apaga la pantalla. Si la mancha desaparece por completo, se trata de un problema de retroiluminaci\u00f3n (mancha blanca o sangrado). Si permanece como un punto negro, es un p\u00edxel muerto. Si puedes notarlo con el dedo o limpiarlo, se trata de suciedad externa.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1358\" height=\"1024\" src=\"https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/04_defect_comparison-1358x1024.webp\" alt=\"\" class=\"wp-image-30973\" srcset=\"https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/04_defect_comparison-1358x1024.webp 1358w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/04_defect_comparison-300x226.webp 300w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/04_defect_comparison-150x113.webp 150w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/04_defect_comparison-768x579.webp 768w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/04_defect_comparison-1536x1158.webp 1536w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/04_defect_comparison-16x12.webp 16w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/04_defect_comparison-500x377.webp 500w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/04_defect_comparison-600x452.webp 600w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/04_defect_comparison.webp 1915w\" sizes=\"(max-width: 1358px) 100vw, 1358px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_Fix_White_Spots_on_LCD_Screens\"><\/span>C\u00f3mo solucionar las manchas blancas en las pantallas LCD <span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>La soluci\u00f3n adecuada depende de la causa, del valor que muestra la pantalla y de si el panel es de uso dom\u00e9stico o industrial.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Method_1_Gentle_Pressure_Massage_Pressure_Spots_Only\"><\/span>M\u00e9todo 1: Masaje con presi\u00f3n suave (solo en los puntos de presi\u00f3n)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>En el caso de manchas recientes provocadas por la presi\u00f3n, en las que la capa de cristal l\u00edquido a\u00fan no se ha asentado de forma permanente:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Apaga la pantalla por completo<\/li>\n\n\n\n<li>Aplica un <strong>pa\u00f1o suave de microfibra<\/strong> al contado<\/li>\n\n\n\n<li>Utiliza una herramienta roma y no conductora (como un l\u00e1piz \u00f3ptico de goma) para aplicar <strong>una presi\u00f3n muy suave y circular<\/strong><\/li>\n\n\n\n<li>Frote desde el centro de la mancha hacia fuera durante 30-60 segundos<\/li>\n\n\n\n<li>Enciende el dispositivo y comprueba<\/li>\n<\/ol>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>Advertencia:<\/strong> Este m\u00e9todo conlleva el riesgo de agravar los da\u00f1os. No utilices nunca objetos afilados ni apliques una fuerza excesiva. Las pantallas industriales con uni\u00f3n \u00f3ptica son especialmente sensibles a esta t\u00e9cnica.<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Method_2_Pixel_Refresh_Inversion_Cycle\"><\/span>M\u00e9todo 2: Ciclo de actualizaci\u00f3n e inversi\u00f3n de p\u00edxeles<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Algunas manchas blancas \u2014especialmente las causadas por una desalineaci\u00f3n temporal de los cristales l\u00edquidos\u2014 pueden solucionarse sometiendo el panel a ciclos completos de blanco y negro durante 2 a 4 horas. Esto resulta m\u00e1s eficaz para <strong>retenci\u00f3n de la imagen<\/strong> que las manchas blancas propiamente dichas, pero merece la pena probarlas en monitores de consumo que cuenten con funciones integradas de actualizaci\u00f3n de p\u00edxeles.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Method_3_Diffuser_Plate_Realignment_Professional_Repair\"><\/span>M\u00e9todo 3: Reajuste de la placa difusora (reparaci\u00f3n profesional)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>En caso de sangrado en los bordes o opacidad provocados por el desplazamiento del difusor:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Desmonta el bisel de la pantalla y el blindaje met\u00e1lico<\/li>\n\n\n\n<li>Revisa la placa gu\u00eda de luz y el conjunto difusor<\/li>\n\n\n\n<li>Vuelve a colocar con cuidado el difusor para que cubra los bordes del LED de manera uniforme<\/li>\n\n\n\n<li>Solicitar <strong>cinta adhesiva de calidad \u00f3ptica<\/strong> para sujetar las s\u00e1banas<\/li>\n\n\n\n<li>Vuelve a montarlo y comprueba la uniformidad<\/li>\n<\/ol>\n\n\n\n<p>Para ello es necesario un entorno libre de polvo. Una sola part\u00edcula que quede atrapada durante el montaje volver\u00e1 a crear una nueva mancha blanca.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Method_4_Backlight_Unit_Replacement\"><\/span>M\u00e9todo 4: Sustituci\u00f3n de la unidad de retroiluminaci\u00f3n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Si la mancha blanca se debe a la degradaci\u00f3n de los LED, a da\u00f1os en el difusor o a la deformaci\u00f3n de la l\u00e1mpara LGP, la soluci\u00f3n m\u00e1s fiable es sustituir todo el <strong>unidad de retroiluminaci\u00f3n<\/strong>. Para los tama\u00f1os de pantalla est\u00e1ndar (15,6\u2033, 21,5\u2033, 23,8\u2033), suele haber unidades BLU de recambio disponibles. Para <strong>pantallas industriales a medida<\/strong>, para su sustituci\u00f3n es necesario que se cumplan las mismas especificaciones \u00f3pticas que las originales.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Method_5_Panel_Replacement\"><\/span>M\u00e9todo 5: Sustituci\u00f3n del panel<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Cuando las manchas blancas se deben a:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Da\u00f1os en la capa de cristal l\u00edquido<\/li>\n\n\n\n<li>Fractura interna del cristal<\/li>\n\n\n\n<li>Deslaminaci\u00f3n grave del polarizador<\/li>\n<\/ul>\n\n\n\n<p>\u2026hay que sustituir la pantalla. La reparaci\u00f3n no resulta rentable en la mayor\u00eda de los casos para pantallas de menos de 32 pulgadas.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1432\" height=\"1024\" src=\"https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/05_repair_flowchart-1432x1024.webp\" alt=\"\" class=\"wp-image-30974\" srcset=\"https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/05_repair_flowchart-1432x1024.webp 1432w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/05_repair_flowchart-300x214.webp 300w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/05_repair_flowchart-150x107.webp 150w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/05_repair_flowchart-768x549.webp 768w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/05_repair_flowchart-1536x1098.webp 1536w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/05_repair_flowchart-2048x1464.webp 2048w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/05_repair_flowchart-18x12.webp 18w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/05_repair_flowchart-500x357.webp 500w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/05_repair_flowchart-600x429.webp 600w\" sizes=\"(max-width: 1432px) 100vw, 1432px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Prevention_Avoiding_White_Spots_in_Industrial_Displays\"><\/span>Prevenci\u00f3n: c\u00f3mo evitar las manchas blancas en las pantallas industriales<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Para los compradores B2B y los dise\u00f1adores de productos, <strong>prevenci\u00f3n en la fase de fabricaci\u00f3n<\/strong> es mucho m\u00e1s rentable que la reparaci\u00f3n in situ. Estas son las estrategias de ingenier\u00eda que eliminan los puntos blancos antes de que aparezcan:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Optical_Bonding\"><\/span>1. Uni\u00f3n \u00f3ptica<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p><strong>Uni\u00f3n \u00f3ptica<\/strong> Elimina el espacio de aire entre el cristal de la pantalla LCD y la pantalla t\u00e1ctil o la lente protectora, rellen\u00e1ndolo con adhesivo \u00f3pticamente transparente (OCA) o resina (OCR). Esto ofrece tres ventajas para evitar la aparici\u00f3n de manchas blancas:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Elimina la reflexi\u00f3n interna<\/strong> que pueden acentuar peque\u00f1os defectos del difusor<\/li>\n\n\n\n<li><strong>Aporta rigidez estructural<\/strong>, evitando as\u00ed la presi\u00f3n provocada por la flexi\u00f3n sobre la capa de LC<\/li>\n\n\n\n<li><strong>Evita la entrada de humedad<\/strong> que provoca la aparici\u00f3n de manchas opacas<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>En <strong>JicTech<\/strong>, nuestro proceso de uni\u00f3n \u00f3ptica se lleva a cabo en un <strong>Sala limpia de clase 7 seg\u00fan la norma ISO<\/strong> mediante la dosificaci\u00f3n automatizada y la laminaci\u00f3n al vac\u00edo, lo que garantiza una contaminaci\u00f3n por part\u00edculas nula y un espesor uniforme del adhesivo.<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Reinforced_Mechanical_Design\"><\/span>2. Dise\u00f1o mec\u00e1nico reforzado<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Las pantallas industriales deben contar con:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Chasis met\u00e1lico con distribuci\u00f3n uniforme de la presi\u00f3n<\/strong> alrededor del per\u00edmetro del panel<\/li>\n\n\n\n<li><strong>Juntas amortiguadoras<\/strong> entre la pantalla LCD y el bisel frontal<\/li>\n\n\n\n<li><strong>Especificaciones de par de apriete adecuadas<\/strong> para los tornillos de fijaci\u00f3n (un par de apriete desigual genera puntos de presi\u00f3n)<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Wide-Temperature_Component_Selection\"><\/span>3. Selecci\u00f3n de componentes para un amplio rango de temperaturas<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Los componentes LCD est\u00e1ndar para uso dom\u00e9stico est\u00e1n dise\u00f1ados para funcionar a temperaturas comprendidas entre 0 \u00b0C y 50 \u00b0C. Las aplicaciones industriales requieren:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Mezclas de cristales l\u00edquidos de amplio rango de temperaturas<\/strong> (Rango de funcionamiento: de -30 \u00b0C a 80 \u00b0C)<\/li>\n\n\n\n<li><strong>Placas difusoras de alta Tg (transici\u00f3n v\u00edtrea)<\/strong> que no se deforman<\/li>\n\n\n\n<li><strong>Dise\u00f1o de la gesti\u00f3n t\u00e9rmica<\/strong> con disipadores de calor para eliminar los puntos calientes<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_AOI_and_100_Uniformity_Testing\"><\/span>4. Pruebas de uniformidad de AOI y 100%<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Los equipos modernos pueden detectar manchas blancas de tan solo 0,3 mm <strong>Inspecci\u00f3n \u00f3ptica automatizada (AOI)<\/strong> sistemas. Sin embargo, muchos fabricantes solo toman muestras de entre 5 y 10% paneles. <strong>Prueba de uniformidad de la retroiluminaci\u00f3n del 100%<\/strong>\u2014donde cada panel se somete a mediciones en 9 o 13 puntos para comprobar la desviaci\u00f3n de la luminancia\u2014 garantiza que ning\u00fan punto blanco salga de f\u00e1brica.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Proper_Packaging_and_Handling\"><\/span>5. Embalaje y manipulaci\u00f3n adecuados<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Durante el transporte y la instalaci\u00f3n:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Uso <strong>inserciones de espuma antiest\u00e1tica<\/strong> que se ajusten al contorno exacto del panel<\/li>\n\n\n\n<li>Nunca apiles las pantallas con la cara hacia abajo<\/li>\n\n\n\n<li>Mantener <strong>Protocolos de manipulaci\u00f3n a prueba de descargas electrost\u00e1ticas (ESD)<\/strong> (Las descargas electrost\u00e1ticas pueden da\u00f1ar los transistores TFT, provocando la aparici\u00f3n de puntos brillantes)<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1439\" height=\"1024\" src=\"https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/06_prevention_diagram-1439x1024.webp\" alt=\"\" class=\"wp-image-30975\" srcset=\"https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/06_prevention_diagram-1439x1024.webp 1439w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/06_prevention_diagram-300x213.webp 300w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/06_prevention_diagram-150x107.webp 150w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/06_prevention_diagram-768x546.webp 768w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/06_prevention_diagram-1536x1093.webp 1536w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/06_prevention_diagram-2048x1457.webp 2048w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/06_prevention_diagram-18x12.webp 18w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/06_prevention_diagram-500x356.webp 500w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/06_prevention_diagram-600x427.webp 600w\" sizes=\"(max-width: 1439px) 100vw, 1439px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"When_to_Repair_vs_Replace\"><\/span>Cu\u00e1ndo reparar y cu\u00e1ndo sustituir<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Escenario<\/th><th>Medida recomendada<\/th><th>Presupuesto<\/th><\/tr><\/thead><tbody><tr><td>Una peque\u00f1a mancha aislada en la pantalla de un monitor dom\u00e9stico<\/td><td>\u00dasalo si lo toleras; c\u00e1mbialo si te molesta.<\/td><td>$0\u2013$200<\/td><\/tr><tr><td>M\u00faltiples manchas \/ opacidad en una interfaz hombre-m\u00e1quina (HMI) industrial<\/td><td>Sustituir el BLU o el panel completo<\/td><td>$150\u2013$600<\/td><\/tr><tr><td>Manchas blancas en la pantalla m\u00e9dica<\/td><td><strong>Sustituir inmediatamente<\/strong> \u2014 afecta a la precisi\u00f3n del diagn\u00f3stico<\/td><td>$500\u2013$3.000<\/td><\/tr><tr><td>Manchas blancas en una pantalla nueva (&lt;30 d\u00edas)<\/td><td>Sustituci\u00f3n en garant\u00eda<\/td><td>$0<\/td><\/tr><tr><td>Manchas blancas tras un fallo en la uni\u00f3n \u00f3ptica<\/td><td>Devolver al fabricante para que vuelva a encolarlo<\/td><td>$100\u2013$400<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>Regla general:<\/strong> Si la mancha blanca afecta a una zona cr\u00edtica de visualizaci\u00f3n (el centro 50% de la pantalla) o si la pantalla se utiliza para im\u00e1genes m\u00e9dicas, control industrial o instrumentaci\u00f3n de automoci\u00f3n, <strong>La sustituci\u00f3n es la \u00fanica opci\u00f3n segura.<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1212\" height=\"1024\" src=\"https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/07_repair_vs_replace-1212x1024.webp\" alt=\"\" class=\"wp-image-30976\" srcset=\"https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/07_repair_vs_replace-1212x1024.webp 1212w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/07_repair_vs_replace-300x253.webp 300w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/07_repair_vs_replace-150x127.webp 150w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/07_repair_vs_replace-768x649.webp 768w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/07_repair_vs_replace-1536x1297.webp 1536w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/07_repair_vs_replace-14x12.webp 14w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/07_repair_vs_replace-500x422.webp 500w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/07_repair_vs_replace-600x507.webp 600w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/07_repair_vs_replace.webp 1930w\" sizes=\"(max-width: 1212px) 100vw, 1212px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"People_Also_Ask_FAQ\"><\/span>Preguntas frecuentes (FAQ)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Are_LCD_white_spots_permanent\"><\/span>\u00bfLas manchas blancas en las pantallas LCD son permanentes?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>La mayor\u00eda de las manchas blancas provocadas por la presi\u00f3n f\u00edsica o por da\u00f1os en el difusor son <strong>permanente<\/strong>. No obstante, el empa\u00f1amiento provocado por la humedad puede desaparecer si se seca la pantalla en un entorno con baja humedad. Las manchas de presi\u00f3n temporales pueden desaparecer en ocasiones en un plazo de 24 a 48 horas, a medida que la capa de cristal l\u00edquido se relaja.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Can_white_spots_spread_over_time\"><\/span>\u00bfPueden extenderse las manchas blancas con el tiempo?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>S\u00ed. Si se debe a <strong>deformaci\u00f3n de la placa difusora<\/strong> o <strong>degradaci\u00f3n del adhesivo<\/strong>, las manchas blancas suelen extenderse lentamente a medida que contin\u00faan los ciclos t\u00e9rmicos. Una mancha de 3 mm puede llegar a alcanzar los 15 mm en un plazo de 6 a 12 meses en entornos con altas temperaturas. Su sustituci\u00f3n temprana evita una mayor degradaci\u00f3n \u00f3ptica.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Do_white_spots_mean_my_LCD_is_dying\"><\/span>\u00bfLas manchas blancas significan que mi pantalla LCD se est\u00e1 estropeando?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>No necesariamente. Una sola mancha blanca suele ser un <strong>defecto localizado<\/strong>, lo cual no es se\u00f1al de un fallo total del panel. Sin embargo, la aparici\u00f3n simult\u00e1nea de varias manchas suele indicar <strong>desgaste de la unidad de retroiluminaci\u00f3n<\/strong> o <strong>problemas sistem\u00e1ticos de fabricaci\u00f3n<\/strong>\u2014una se\u00f1al de que la pantalla se est\u00e1 acercando al final de su vida \u00fatil.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Can_pressure_cause_white_spots_on_an_LCD\"><\/span>\u00bfPuede la presi\u00f3n provocar la aparici\u00f3n de manchas blancas en una pantalla LCD?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>S\u00ed. La presi\u00f3n f\u00edsica es la <strong>Causa de #1<\/strong> de manchas blancas en ordenadores port\u00e1tiles, tabletas y dispositivos port\u00e1tiles. Incluso una ligera presi\u00f3n (por ejemplo, la tecla de un teclado que presiona contra la pantalla cerrada de un ordenador port\u00e1til) puede desplazar la placa difusora o comprimir la capa de cristal l\u00edquido lo suficiente como para crear una mancha brillante permanente.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_much_does_it_cost_to_fix_white_spots_on_an_LCD\"><\/span>\u00bfCu\u00e1nto cuesta arreglar las manchas blancas en una pantalla LCD?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Monitores de consumo (15\u201327\u2033):<\/strong> $50\u2013$200 para la sustituci\u00f3n de BLU; $100\u2013$300 para la sustituci\u00f3n del panel<\/li>\n\n\n\n<li><strong>Pantallas industriales (7\u201321,5\u2033):<\/strong> $150\u2013$600, dependiendo de la interfaz y la integraci\u00f3n t\u00e1ctil<\/li>\n\n\n\n<li><strong>Pantallas a medida para el sector m\u00e9dico y de la automoci\u00f3n:<\/strong> $500\u2013$3.000+ debido a los requisitos de certificaci\u00f3n y de uni\u00f3n \u00f3ptica<\/li>\n<\/ul>\n\n\n\n<p>Para los compradores industriales, invertir en <strong>uni\u00f3n \u00f3ptica y componentes para amplio rango de temperaturas desde el principio<\/strong> elimina estos costes de reparaci\u00f3n a lo largo del ciclo de vida del producto.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Are_white_spots_covered_by_warranty\"><\/span>\u00bfLas manchas blancas est\u00e1n cubiertas por la garant\u00eda?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Manchas blancas causadas por <strong>defectos de fabricaci\u00f3n<\/strong> (part\u00edculas, huecos en el adhesivo, desalineaci\u00f3n del difusor) suelen estar cubiertos por la garant\u00eda del fabricante durante un periodo de entre 12 y 24 meses. Las manchas causadas por <strong>da\u00f1os f\u00edsicos, una manipulaci\u00f3n incorrecta o factores ambientales<\/strong> (la humedad, el calor extremo) suelen quedar excluidos.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Can_white_spots_appear_on_brand-new_LCD_displays\"><\/span>\u00bfPueden aparecer manchas blancas en las pantallas LCD nuevas?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>S\u00ed, aunque es poco habitual en fabricantes de prestigio. Las manchas blancas en los paneles nuevos son casi siempre <strong>defectos de fabricaci\u00f3n<\/strong>\u2014part\u00edculas atrapadas, una laminaci\u00f3n irregular del polarizador o problemas de tolerancia en la placa difusora. Por eso <strong>Inspecci\u00f3n AOI del modelo 100%<\/strong> es fundamental para la adquisici\u00f3n de pantallas industriales y m\u00e9dicas.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Whats_the_difference_between_white_spots_and_backlight_bleeding\"><\/span>\u00bfCu\u00e1l es la diferencia entre las manchas blancas y el sangrado de la luz de fondo?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Manchas blancas:<\/strong> Manchas brillantes localizadas e irregulares en cualquier parte de la pantalla; causadas por problemas en el difusor o la capa de cristal l\u00edquido<\/li>\n\n\n\n<li><strong>Fuga de luz de fondo:<\/strong> Fuga de luz uniforme en los bordes del panel; provocada por la presi\u00f3n del marco o por el dise\u00f1o del panel IPS<\/li>\n<\/ul>\n\n\n\n<p>Ambos son problemas de fuga de luz de fondo, pero el \u201cbleeding\u201d de la luz de fondo suele considerarse \u00abnormal\u00bb en los paneles IPS cuando se miran desde \u00e1ngulos de visi\u00f3n extremos, mientras que las manchas blancas siempre son un defecto.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Can_software_fix_white_spots_on_an_LCD\"><\/span>\u00bfSe pueden corregir las manchas blancas de una pantalla LCD mediante un programa inform\u00e1tico?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>No. Las manchas blancas son <strong>defectos f\u00edsicos<\/strong> en el conjunto \u00f3ptico o en la unidad de retroiluminaci\u00f3n. Ninguna herramienta de software, programa de restauraci\u00f3n de p\u00edxeles ni actualizaci\u00f3n de controladores puede reparar una placa difusora desplazada o una capa de cristal l\u00edquido da\u00f1ada. Las soluciones de software solo funcionan en casos de p\u00edxeles atascados o retenci\u00f3n de imagen.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_do_I_test_my_LCD_for_white_spots\"><\/span>\u00bfC\u00f3mo puedo comprobar si mi pantalla LCD tiene manchas blancas?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Mostrar un <strong>imagen completamente negra<\/strong> (RGB 0,0,0) en una habitaci\u00f3n a oscuras<\/li>\n\n\n\n<li>Examina la pantalla a una distancia de visi\u00f3n normal para detectar posibles zonas brillantes<\/li>\n\n\n\n<li>Comprueba las cuatro esquinas y, en concreto, el centro.<\/li>\n\n\n\n<li>Repite con <strong>rojo, verde y azul puros<\/strong> im\u00e1genes para descartar problemas relacionados con el color<\/li>\n\n\n\n<li>Para pantallas industriales, utiliza un <strong>medidor de luminancia<\/strong> para medir la uniformidad (la desviaci\u00f3n debe ser &lt;15% en toda la zona activa)<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusi\u00f3n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Las manchas blancas en las pantallas LCD son un defecto habitual, pero evitable, que afecta a todo tipo de dispositivos, desde tabletas de consumo hasta sistemas cr\u00edticos de diagn\u00f3stico por imagen. Aunque en ocasiones las manchas leves pueden solucionarse, la \u00fanica soluci\u00f3n fiable a largo plazo \u2014especialmente para aplicaciones industriales, de automoci\u00f3n y m\u00e9dicas\u2014 es <strong>prevenci\u00f3n gracias a una fabricaci\u00f3n de alta calidad<\/strong>.<\/p>\n\n\n\n<p>Puntos clave:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Presi\u00f3n f\u00edsica y tensi\u00f3n t\u00e9rmica<\/strong> son las principales causas de las manchas blancas<\/li>\n\n\n\n<li><strong>Desplazamientos de la placa difusora y da\u00f1os en la capa de LC<\/strong> requieren una intervenci\u00f3n a nivel de panel<\/li>\n\n\n\n<li><strong>Uni\u00f3n \u00f3ptica, componentes para amplio rango de temperaturas e inspecci\u00f3n AOI<\/strong> eliminar el 95%+ de riesgos de manchas blancas a nivel de f\u00e1brica<\/li>\n\n\n\n<li>Los compradores industriales deber\u00edan dar prioridad a <strong>Prueba de uniformidad 100%<\/strong> y <strong>garant\u00edas de disponibilidad a largo plazo<\/strong><\/li>\n<\/ul>\n\n\n\n<p>En <strong>JicTech<\/strong>, Estamos especializados en <strong>pantallas LCD TFT personalizadas<\/strong> Dise\u00f1ado para ofrecer un rendimiento sin defectos en entornos exigentes. Nuestro proceso de fabricaci\u00f3n incluye:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Certificada seg\u00fan las normas ISO 9001 e IATF 16949<\/strong> gesti\u00f3n de la calidad<\/li>\n\n\n\n<li><strong>Sala limpia de clase 7 seg\u00fan la norma ISO<\/strong> uni\u00f3n \u00f3ptica y montaje<\/li>\n\n\n\n<li><strong>100% AOI + pruebas de uniformidad de la retroiluminaci\u00f3n<\/strong> en cada panel<\/li>\n\n\n\n<li><strong>Dise\u00f1os para un amplio rango de temperaturas<\/strong> (Rango de funcionamiento: de -30 \u00b0C a 80 \u00b0C)<\/li>\n\n\n\n<li><strong>Uni\u00f3n \u00f3ptica, blindaje contra interferencias electromagn\u00e9ticas y cristal protector a medida<\/strong> integraci\u00f3n<\/li>\n<\/ul>\n\n\n\n<p>Tanto si necesitas un<a href=\"https:\/\/jiclcd.com\/es\/producto\/7-0-inch-tft-lcd-module-2\/\" data-type=\"link\" data-id=\"https:\/\/jiclcd.com\/product\/7-0-inch-tft-lcd-module-2\/\"> <strong>HMI industrial de 7 pulgadas<\/strong><\/a>, un <strong><a href=\"https:\/\/jiclcd.com\/es\/producto\/12-1%e2%80%91inch-ips-tft-lcd-display-module\/\" data-type=\"link\" data-id=\"https:\/\/jiclcd.com\/product\/12-1%e2%80%91inch-ips-tft-lcd-display-module\/\">Pantalla m\u00e9dica de 12,1 pulgadas<\/a><\/strong>, o un <strong><a href=\"https:\/\/jiclcd.com\/es\/automocion\/\" data-type=\"link\" data-id=\"https:\/\/jiclcd.com\/automotive\/\">pantalla LCD personalizada para el cuadro de instrumentos de un veh\u00edculo<\/a><\/strong>, nuestro equipo de ingenier\u00eda se asegura de que su pantalla funcione a la perfecci\u00f3n durante todo su ciclo de vida.<\/p>\n\n\n\n<p><strong><a href=\"https:\/\/jiclcd.com\/es\/contact\/\" data-type=\"link\" data-id=\"https:\/\/jiclcd.com\/contact\/\">Ponte en contacto con JicTech hoy mismo<\/a><\/strong> para comentarnos tus necesidades espec\u00edficas en materia de pantallas LCD, solicitar muestras o consultar nuestros informes completos de pruebas \u00f3pticas. D\u00e9janos crear una pantalla que nunca d\u00e9 a tus usuarios finales un motivo para buscar \u201cc\u00f3mo solucionar las manchas blancas\u201d.\u201d<\/p>\n\n\n\n<p><em>\u00daltima actualizaci\u00f3n: agosto de 2026 | Las especificaciones t\u00e9cnicas est\u00e1n sujetas a mejoras continuas<\/em><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"729\" height=\"1024\" src=\"https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/08_infographic_summary-729x1024.webp\" alt=\"\" class=\"wp-image-30977\" srcset=\"https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/08_infographic_summary-729x1024.webp 729w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/08_infographic_summary-213x300.webp 213w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/08_infographic_summary-107x150.webp 107w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/08_infographic_summary-768x1079.webp 768w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/08_infographic_summary-1093x1536.webp 1093w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/08_infographic_summary-1457x2048.webp 1457w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/08_infographic_summary-9x12.webp 9w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/08_infographic_summary-500x703.webp 500w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/08_infographic_summary-600x843.webp 600w, https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/08\/08_infographic_summary.webp 1480w\" sizes=\"(max-width: 729px) 100vw, 729px\" \/><\/figure>","protected":false},"excerpt":{"rendered":"<p>Quick Answer: LCD white spots are bright, irregular patches that appear when the backlight leaks through gaps in the liquid crystal layer, diffuser plate, or polarizer film. They are commonly caused by physical pressure, thermal stress, manufacturing defects, or aging backlight components. While some pressure-induced spots may fade, most white spots require panel repair or [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":30970,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[110],"tags":[],"class_list":["post-30969","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>LCD White Spots on Screen: Causes, Types &amp; How to Fix Them (2026 Guide) - Jictech<\/title>\n<meta name=\"description\" content=\"LCD white spots on screen? Learn the causes (pressure, diffuser shift, thermal stress), 6 types with visual identification, and proven fix methods. 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