8.5 INSPECTION QUALITY CRITERIA
Item
Description of defects
Class of Acceptable level
Defects
Major
Major
(%)
0.65
1.5
Function
Dimension
Short circuit or Pattern cut
Deviation from drawings
Black spots
Ave . dia . D
area A
area B
Minor
2.5
Disregard
D£0.2
3
2
0
4
3
1
B
0.2<D£0.3
0.3<D£0.4
0.4<D
Width W, Length L
W£0.03
Black lines
A
Minor
2.5
disregard
3
1
4
1
0.03<W£0.05
0.05<W£0.07 , L£3.0
See line criteria
Bubbles in
polarizer
Color
uniformity
Glass
Scratches
Contrast
ratio
Response
time
Average diameter D 0.2 < D < 0.5 mm
for N = 4 , D > 0.5 for N = 1
Minor
Minor
Minor
Minor
Minor
Minor
2.5
2.5
2.5
2.5
2.5
2.5
Rainbow color or newton ring.
Obvious visible damage.
See note 1
See note 2
Viewing
angle
See note 3
ZONE A active area
ZONE B viewing area
Date: 2006/7/26
AMPIRE CO., LTD.
11
EPCOS [ EPCOS ]
