13.5 INSPECTION QUALITY CRITERIA
Item Description of defects Class of
Defects
Acceptable level
(%)
Function Short circuit or Pattern cut Major 0.65
Dimension Deviation from drawings Major 1.5
Ave . dia . D area A area B
D
≤
0.2
Disregard
0.2<D
≤
0.3
3 4
0.3<D
≤
0.4
2 3
Black spots
0.4<D 0 1
Minor 2.5
Width W, Length L A B
W
≤
0.03
disregard
0.03<W
≤
0.05
3 4
0.05<W
≤
0.07 , L
≤
3.0
1 1
Black lines
See line criteria
Minor 2.5
Bubbles in
polarizer
Average diameter D 0.2 < D < 0.5 mm
for N = 4 , D > 0.5 for N = 1
Minor 2.5
Color
uniformity
Rainbow color or newton ring. Minor 2.5
Glass
Scratches
Obvious visible damage. Minor 2.5
Contrast
ratio
See note 1 Minor 2.5
Response
time
See note 2 Minor 2.5
Viewing
angle
See note 3 Minor 2.5
Zone B viewing area
Zone A active area
Date : 2001/12/12 AMPIRE CO., LTD.
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