GDM240128A Datasheet, PDF (26/29 Pages) List of Unclassifed Manufacturers – LCD MODULE

User’s Manual
Item
Criterion for defects
5) Spot-like contrast
irregularity
7) Scratches and dent on the
polarizer
8) Stains on the surface of
LCD panel
9) Rainbow color
10) Viewing area
encroachment
11) Bezel appearance
12) Defect of land surface
contact
13) Parts mounting
14) Part alignment
15) Conductive foreign
matter (solder ball,
solder hips)
16) PCB pattern damage
17) Faulty PCB correction
18) Bezel flaw
Size Φ(mm)
Φ≤0.7
0.7<Φ≤1.0
1.0<Φ≤1.5
1.5<Φ
Acceptable Number
Ignore (note)
3
1
0
Note: 1) Conformed to limit samples.
2) Intervals of defects are more than 30mm.
Scratches and dent on the polarizer shall be in the accordance with
“2) Black/white spot”, and “3) Black/White line”.
Stains which cannot be removed even when wiped lightly
with a soft cloth or similar cleaning.
No rainbow color is allowed in the optimum contrast on state within
the active area.
Polarizer edge or line is visible in the opening viewing area due to
polarizer shortness or sealing line.
Rust and deep damages that are visible in the bezel are rejected.
Evident crevices that are visible are rejected.
(1) Failure to mount parts
(2) Parts not in the specifications are mounted
(3) For example: Polarity is reversed, HSC or TCP falls off.
(1) LSI, IC lead width is more than 50% beyond pad outline.
(2) More than 50% of LSI, IC leads is off the pad outline.
(1) 0.45<Φ, N≥1
(2) 0.3<Φ≤0.45, N≥1
Φ: Average diameter of solder ball (unit: mm)
(3) 0.5<L, N≥1
L: Average length of solder chip (unit: mm)
(1) Deep damage is found on copper foil and the pattern is nearly
broken.
(2) Damage on copper foil other than 1) above
(1) Due to PCB copper foil pattern burnout, the pattern is
connected, using a jumper wire for repair;2 or more places are
corrected per PCB.
(2) Short-circuited part is cut, and no resist coating has been
performed.
Bezel claw missing or not bent
Defect
type
Minor
Minor
Minor
Minor
Minor
Minor
Minor
Major
Minor
Major
Minor
Minor
Major
Minor
Minor
Minor
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