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Prueba de Pantalla LCD

Ejecuta una prueba de pantalla LCD gratuita en el navegador en menos de un minuto. Elige un bloque de color - rojo, verde, azul, negro, blanco o amarillo - y la pagina pinta ese relleno solido en toda la viewport para que un pixel atascado, un pixel muerto o sangrado de luz se destaquen contra un campo uniforme.

Last reviewed: 2026-06-29

PropiedadValor
FormatoHerramienta online, sin instalacion
VelocidadEn el navegador; salida en segundos
PrivacidadLos archivos permanecen en el dispositivo
Herramienta de implementacionhttps://freetoolonline.com/device-test-tools/lcd-test.html

Debajo de los bloques de color la pagina informa tres numeros en vivo sobre tu display: la viewport activa, la resolucion de pantalla que el sistema operativo anuncia, y la resolucion nativa que multiplica esa resolucion por la relacion de pixel del dispositivo. Confirma que el numero nativo coincida con la hoja de especificaciones de tu laptop o monitor antes de senalar un punto sospechoso, porque en un panel hi-DPI un pixel CSS esta delante de varios sub-pixeles fisicos, y un sub-pixel atascado puede esconderse entre ellos. La lectura se actualiza en cada carga, asi que una verificacion fresca esta a un reload de distancia.

Para determinar primero si tu pantalla es LED o LCD (lo que cambia que patron de color es mas util para revelar defectos), ve LED test vs LCD test - cual aplica a tu pantalla.

Reviewed by the Free Tool Online editorial team · Tested in the current versions of Chrome, Firefox, Safari, and Edge before publishing. No account is needed to use any tool. Report a bug - we triage within 72 hours. · Last refreshed April 2026.

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Tags: #device-test, #guide, #lcd, #screen, #test

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