VBWFD1 datasheet(20/25 Pages) MIDASDISPLAYS

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Inspection specification

Item

Criterion

AQL

Electrical

Testing

1.1 Missing vertical, horizontal segment, segment contrast

defect.

1.2 Missing character , dot or icon.

1.3 Display malfunction.

1.4 No function or no display.

1.5 Current consumption exceeds product specifications.

1.6 LCD viewing angle defect.

1.7 Mixed product types.

Contrast defect.

0.65

Black or

white spots

on LCD

(display only)

LCD black

spots, white

spots,

contaminatio

(non-display)

3.2 Line type : (As following drawing)

Length

Width

Acceptable Q

---

W≦0.02

Accept no

dense

L≦3.0

0.02＜W≦0.03

L≦2.5

0.03＜W≦0.05

---

0.05＜W

As round type

2.5

Polarizer

bubbles

If bubbles are visible,

judge using black spot

specifications, not

easy to find, must

check in specify

direction.

Size Φ

Acceptable Q

Φ≦0.20

Accept no

dense

0.20＜Φ≦0.50

0.50＜Φ≦1.00

1.00＜Φ

Total Q TY

2.5

2.1 White and black spots on display ≦0.25mm, no more

than three white or black spots present.

2.2 Densely spaced: No more than two spots or lines within

3mm

2.5

3.1 Round type : As following drawing

Φ=( x + y ) / 2

2.5

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