Polaroid FLM 3701 Service Manual - Page 22

Polaroid FLM 3701 - 37" LCD TV Manual

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Identification criteria for the bright spot and dark spot of the LCD screen Category criteria One single spot 2 neighboring spots Q'ty allowed 15" ≤5 ≤2 ≤5 ≤6 20" ≤2 ≤1 ≤2 ≤7 22" ≤5 ≤2 ≤5 ≤5 30" ≤2 ≤1 ≤2 ≤4 40" ≤3 ≤1 ≤3 ≤10 Distance between two spots 15" 20" 22" 30" 40" Bright spot ≥15mm Total No. One single spot Dark spots Two neighboring spots Total No. Total defected point ≥15mm ≤2 ≤6 ≤8 ≤2 ≤7 ≤7 ≤2 ≤5 ≤5 ≤1 ≤4 ≤4 / ≤5 ≤10 ≥10mm ≥5mm Notes: 1. Definition of defected point (bright spot, dark spot): It is identified as a defected point if its area exceeds 1/2 of a single picture element (R,G,B). 2. Definition of bright spot: It is identified as a bright spot if it is bright in the state of dark field and its bright size remains unchanged 3. Definition of dark spot: It is identified as a dark spot if it is dark in the state of white field and its dark size remains unchanged 4. Definition of two neighboring points: Defects of a group of picture elements(RB,RG,GB). 19

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1
9
Identification criteria for the bright spot and dark spot of the LCD screen
Q’ty allowed
Distance between two spots
Category
criteria
15"
20"
22"
30"
40"
15"
20"
22"
30"
40"
One single
spot
≤
5
≤
2
≤
5
≤
2
≤
3
2 neighboring
spots
≤
2
≤
1
≤
2
≤
1
≤
1
Bright
spo
t
Total No.
≤
5
≤
2
≤
5
≤
2
≤
3
≥
15mm
One single
spot
≤
6
≤
7
≤
5
≤
4
≤
10
Two
neighboring
spots
≤
2
≤
2
≤
2
≤
1
≤
5
Dark
spots
Total No.
≤
6
≤
7
≤
5
≤
4
≤
10
≥
15mm
≥
10mm
≥
5mm
Total defected point
≤
8
≤
7
≤
5
≤
4
/
Notes:
1. Definition of defected point (bright spot, dark spot): It is identified as a defected point if its area
exceeds 1/2 of a single picture element (R,G,B).
2. Definition of bright spot: It is identified as a bright spot if it is bright in the state of dark field and its
bright size remains unchanged
3. Definition of dark spot: It is identified as a dark spot if it is dark in the state of white field and its
dark size remains unchanged
4. Definition of two neighboring points:
Defects of a group of picture elements(RB,RG,GB).