13.5 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
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.
uniformity
Glass
Obvious visible damage.
See note 1
Scratches
Contrast
ratio
Response
time
See note 2
Viewing
angle
See note 3
Zone A active area
Zone B viewing area
Date : 2001/12/12
AMPIRE CO., LTD.
16
ZETTLER [ ZETTLER ELECTRONICS ]
