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6
. Regulatory Informatio
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Défauts de points sombres
Les points défectueux sombres sont
des pixels ou sous-pixels toujours noirs
ou « éteints ». Un pixel sombre est
donc un sous-pixel qui ressort du fond
clair de l'écran. Voici les types de pixels
sombres défectueux.
- Rouge + Bleu = Violet
- Rouge + Vert = Jaune
- Vert + Bleu = Cyan (Bleu pâle)
Trois sous-pixels adjacents allumés (un
pixel blanc).
Remarque
Un pixel brillant rouge ou bleu a une
luminosité supérieure à 50 % par
rapport aux pixels environnants, tandis
qu'un pixel brillant vert est 30 % plus
lumineux que les pixels environnants.
Proximité des défauts de pixels
Du fait que des défauts de même type provenant de pixels et sous-pixels proches
les uns des autres peuvent être plus facilement remarqués, Philips spécie aussi des
tolérances pour la proximité des défauts de pixels.
Tolérances des défauts de pixels
Pour bénécier, pendant la période de garantie, d'une réparation ou d'un
remplacement en raison de défauts de pixels, le panneau TFT d'un écran plat
Philips doit avoir des défauts de pixels et sous-pixels qui dépassent les tolérances
répertoriées dans les tableaux suivants.
DÉFAUTS DES POINTS LUMINEUX NIVEAU ACCEPTABLE
1 sous-pixel éclairé 3
2 sous-pixels adjacents éclairés 1
3 sous-pixels adjacents éclairés (un pixel blanc) 0
Distance entre deux points lumineux défectueux* >15mm
Total des points lumineux défectueux, tous types confondus 3
19


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