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Teste de Tela LCD

Execute um teste de tela LCD gratuito no navegador em menos de um minuto. Escolha um bloco de cor - vermelho, verde, azul, preto, branco ou amarelo - e a pagina pinta esse preenchimento solido em toda a viewport para que um pixel preso, um pixel morto ou vazamento de luz se destaquem contra um campo uniforme.

Last reviewed: 2026-06-29

PropriedadeValor
FormatoFerramenta online, sem instalacao
VelocidadeNo navegador; saida em segundos
PrivacidadeOs arquivos ficam no dispositivo
Ferramenta de implementacaohttps://freetoolonline.com/device-test-tools/lcd-test.html

Abaixo dos blocos de cor a pagina reporta tres numeros ao vivo sobre seu display: a viewport ativa, a resolucao de tela que o sistema operacional anuncia, e a resolucao nativa que multiplica essa resolucao pela razao de pixel do seu dispositivo. Confirme que o numero nativo bate com a folha de especificacoes do seu laptop ou monitor antes de sinalizar um ponto suspeito, porque em um painel hi-DPI um pixel CSS fica na frente de varios sub-pixels fisicos, e um sub-pixel preso pode se esconder entre eles. A leitura atualiza a cada carregamento, entao uma nova verificacao esta a um reload de distancia.

Para determinar primeiro se o seu ecra e LED ou LCD (o que muda qual padrao de cor e mais util para revelar defeitos), veja LED test vs LCD test - qual se aplica ao seu ecra.

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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