Acer X203

1.4.5.5 Defect Terminology
Table 3 gives the descriptive terms used in classifying
defects.
1.5 Optical Characteristics
Depends on the LCD supplier's spec. Details refer to QA
Inspection Spec.
1.4.5.6 Smudges, Streaks and Smears
When viewing the panel oriented so as to maximize
reflected light , there shall be no visible smudging ,
streaking, smearing or other nonuniformity from
contaminants ,fingerprints,or defects in any of the visible
surfaces. This is independent of whether the unit is
operating or off .
1.4.5.7 Other Defects
Undefined defects that are considered to be rejectable
by Lite–On will be reviewed by Lite-On as they become
apparent. These panels will be referred to the Lite - On
Corporate / Manufacturer Purchasing Agreement for
disposition.
1.4.5.8 LCD Inspection
Put LCD panel on inspection table and illuminate the
panel with a daylight fluorescent lamp located above the
panel surface such that the illuminance at the LCD panel
is between 1000 lux and 1500 lux .Defect limits are given
in Table 4 .
1. Product Specification (continued)
Average Diameter smaller of
(L+W)/2 or L/20+2W
Acceptable Number Minimum Separation
< 0.1mm Non countable N / A
0.1 mm ~ 0.3 mm 10 15 mm
0.31 mm ~ 0.5 mm 10 15 mm
0.51 mm ~ 1.25 mm 5 15 mm
1.26 mm ~ 2.5 mm 3 25.4 mm
2.51 mm ~ 3.75 mm 3 25.4 mm
Greater than 3.75 mm NONE Not applicable
Note : Allowable distance between spots of two sizes is the minimum separation
number for the smaller spot. Therefore, if there are two spots, 1.30mm and 0.4mm
in diameter, they must be at least 15mm apart.
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Dark / Spots / Lines
S po t s o r line s th a t ap p ea r d ar k in the d is p lay p a tte rn s an d are
usually the result of contam ination. D efects do not vary in
size or intensity (contrast) when contrast voltage is varied.
Contrast variation can be achieved through the use of varying
gray shade p atterns.
Bright Spots / Lines
Spo ts or lines that ap pear light in the display patterns.
D efe cts do no t vary in size o r in ten sity (con tras t) wh en
contrast vo ltage is varied. C ontrast v ariation can be achieved
through the use of varying gray shade p atterns.
Po larizer Scratch
W hen the unit lights, lines appear light (white) w ith display
patterns dark and do not vary in size. P hysical damage to the
polarizer that does not dam age the glass
Polarizer Dent
W hen the unit lights, spots appear light (white) w ith display
patterns dark and do not vary in size. Physical damage to the
polarizer that does not dam age the glass.
Rubbing Line
H orizontal o r diagon al lines that ap pear gray w ith the display
patterns dark and m ay have resulted from an “out of control”
rub bin g p roc ess o n th e po lyim id e o r “w av es ” on the B E Fs o r
prism sheets.
New ton R ing The “rainbow” effect caused by non -uniform cell thickness.
Mo ttling
Wh en the un it lights , v aria tion / n on – un iformity
(splotchiness) appears light (w hite) with the display and
m ight v ary in size.
Dim Line
Wh en the un it ligh ts, line(s ) in the mo n itor (v ertica l) or m a jor
(horizontal) axis appear dim, but not com pletely on or off.
Cross Lines Off
W hen the unit lights, lines in both the m inor and m ajor axis
do not appear.
Bright/DarkDot Asub–pixel(R,G,Bdot)stuckoff/on(electrical).
ACER X203W