HP — HP OmniBook 900 Service Manual

5-4 Reference Information HP OmniBook 900 Type of Imperfection Imperfections Not Allowed Unipac 13" TFT, XGA Electrical Imperfections: Bright dots (a) Dark dots (a) • 9 or more single bright dots. • 10 or more single dark dots. • 18 or more total bright and dark dots. • 4 or more double bright dots. • 5 or more double dark dots. • Any occurrence of triple bright dots (or triple dark dots). • Any occurrence of 2 bright dots within 15 mm. • Any occurrence of 2 dark dots within 5 mm. Mechanical Imperfections: Spots (b) Lines (c) Polarizer scratches (d) Polarizer dents, bubbles (e) • 5 or more spots 0-0.5 mm avg. dia. • 4 or more lines 0-3 mm long. • 7 or more scratches 0-30 mm long.

• 7 or more dents 0-0.5 mm avg. dia. • Any spot or dent over 0.5 mm avg. dia. • Any line over 3 mm long. • Any scratch over 30 mm long Definitions of imperfections: a Bright or dark dot: A subpixel (red, green, or blue dot) that is stuck on or off. b Spot: A point on the display that appears dark or bright and does not change in size. Caused by foreign circular matter on the backlight. c Line: A line on the display that appears dark or light and does not change in size. Caused by contamination (lint, hair) behind the display. d Polarizer scratch: A light line that is visible on a darker background and does not change in size. e Polarizer dent or bubble:

A light spot with a darker border that appears on a lighted display and does not change in size.