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12.
12.
FUNCTIONAL
FUNCTIONAL
12. FUNCTIONAL
12.
FUNCTIONAL TEST
12.1 Sample plan
Sample plan according to MIL-STD-105D level 2, and acceptance/rejection criteria is.
Base on :
12.2 Inspection condition
Viewing distance for cosmetic inspection is 30cm with bare eyes, and under an environment of 800 lus (20W) light
intensity. All direction for inspecting the sample should be within 45°against perpendicular line.
12.3 Definition of Inspection Z one in LCD
Z one A :
Character / Digit area
Z one B :
Viewing area ex cept Z one A ( Z one A + Z one B = minimum Viewing area )
Z one C :
Outside viewing area ( invisible area after assembly in customer 's product )
Note :
As a general rule, visual defects in Z one C are permissible, when it is no trouble for quality and
assembly of customer 's product.
12.4 Major Defect
All functional defects such as open ( or missing segment ), short, contrast differential, ex cess power consumption,
smearing, leakage, etc. and overall outline dimension beyond the drawing. Are classified as major defects.
TEST
TEST& & & & INSPECTION
TEST
INSPECTION
INSPECTION
INSPECTIONCRITERIA
Major defect : AQL 0.65
CRITERIA
CRITERIA
CRITERIA
Minor defect : AQL 2.5
A
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C
B
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