OmniBook 4100 LCD Guidelines TFT

Type of Imperfection

LG 14" TFT, XGA

Electrical Imperfections:

Bright dots (a)

Dark dots (a)

Mechanical Imperfections:

Spots (b)

Lines (c)

Polarizer scratches (d) Polarizer dents, bubbles (e)

Samsung 13" TFT, XGA

Table 5-1. OmniBook 4100 LCD Guidelines (TFT)

Imperfections Not Allowed

∙7 or more single bright dots.

∙7 or more single dark dots.

∙3 or more double bright dots.

∙3 or more double dark dots.

∙11 or more total bright and dark dot imperfections.

∙Any occurrence of triple bright dots (or triple dark dots).

∙Any occurrence of 3 bright dots within 20 mm (or 3 dark dots).

∙6 or more spots 0.2-0.5 mm avg. dia.

∙4 or more lines 0.3-3 mm long and over 0.07 mm wide.

∙5 or more scratches 5-20 mm long and over 0.02 mm wide.

∙9 or more dents or bubbles 0-0.5 mm avg. dia.

∙Any spot over 0.5 mm avg. dia.

∙Any line over 3 mm long or 0.1 mm wide.

∙Any scratch over 20 mm long or 0.05 mm wide.

∙Any dent or bubble over 0.5 mm avg. dia.

Electrical Imperfections:

Bright dots (a)

Dark dots (a)

Mechanical Imperfections:

Spots (b)

Lines (c)

Polarizer scratches (d) Polarizer dents, bubbles (e)

∙11 or more single bright dots.

∙11 or more single dark dots.

∙2 or more double bright dots.

∙6 or more double or triple dark dots.

∙21 or more total bright or dark dot imperfections.

∙Any occurrence of 2 single/double bright dots within 15 mm.

∙Any occurrence of 2 single/double/triple dark dots within 5 mm.

∙5 or more spots 0.1-0.5 mm avg. dia.

∙5 or more lines 0.3-1 mm long and over 0.01 mm wide.

∙4 or more scratches 0.3-10 mm long and over 0.01 mm wide.

∙7 or more dents or bubbles 0-0.5 mm avg. dia.

∙Any spot over 0.5 mm avg. dia.

∙Any line over 1 mm long or 0.8 mm wide.

∙Any scratch over 10 mm long or 0.1 mm wide.

∙Any dent or bubble over 0.5 mm avg. dia.

Definitions of imperfections:

aBright or dark dot: A subpixel (red, green, or blue dot) that is stuck on or off.

bSpot: A point on the display that appears dark or bright and does not change in size. Caused by foreign circular matter on the backlight.

cLine: A line on the display that appears dark or light and does not change in size. Caused by contamination (lint, hair) behind the display.

dPolarizer scratch: A light line that is visible on a darker background and does not change in size.

ePolarizer dent or bubble: A light spot with a darker border that appears on a lighted display and does not change in size.

HP OmniBook 4100

Reference Information

5-3