Compaq Evo n1050v Service Manual - Page 187

Table 5-1. LCD Guidelines, Type of Imperfection, Imperfections Not Allowed, Electrical Imperfections

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Table 5-1. LCD Guidelines Type of Imperfection Imperfections Not Allowed Electrical Imperfections: Bright dots (a) Dark dots (a) • 7 or more single bright dots. • 7 or more single dark dots. • 9 or more total (bright and dark combined) defective dots. • Any occurrence of multiple defective dots within 15 mm. Mechanical Imperfections: • Any polarizer bubble, discoloration, or dent that is visible from at least Discoloration 36 cm (14 in). Polarizer bubbles, dents (b) Definitions of imperfections: a Bright or dark dot: a subpixel (red, green, or blue dot) that is stuck on or off. b Polarizer dent or bubble: a light spot with a darker border that appears on a lighted display and does not change size. (In contrast, a polarizer scratch is a light line that is visible on a darker background and does not change size.) Service Manual Reference Information 5-3

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Table 5-1. LCD Guidelines
Type of Imperfection
Imperfections Not Allowed
Electrical Imperfections:
Bright dots
(a)
Dark dots
(a)
Mechanical Imperfections:
Discoloration
Polarizer bubbles, dents
(b)
Definitions of imperfections:
a
Bright or dark dot: a subpixel (red, green, or blue dot) that is stuck on or off.
b
Polarizer dent or bubble: a light spot with a darker border that appears on a lighted display and does not
change size. (In contrast, a polarizer scratch is a light line that is visible on a darker background and does
not change size.)
•
7 or more single bright dots.
•
7 or more single dark dots.
•
9 or more total (bright and dark combined) defective dots.
•
Any occurrence of multiple defective dots within 15 mm.
•
Any polarizer bubble, discoloration, or dent that is visible from at least
36 cm (14 in).
Service Manual
Reference Information
5-3