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HUDSON 9
15
4.4 Failure Mode Of Panel

Failure description
Phenomenon
Vertical block defect
Vertical dim lines
Vertical lines defect
(Always bri
g
ht or dark)
Horizontal block defect
Horizontal dim lines
Horizontal lines defect
(Always bri
g
ht or dark)
Has bri
g
ht or dark pixel
Polarizer has bubbles
Polarizer has bubbles
Foreign material inside
polarizer. It shows liner or
dot shape.
Concentric circle formed
Bottom back light of LCD is
brighter than normal
Back light un-uniformity
Backli
g
ht has forei
g
n material.
Black or white color, liner or
circular type
Quick reference for failure mode of LCD panel
this pa
g
e presents problems that could be made by LCD panel.
It is not necessary to repair circuit board. Simply follow the mechanical
instruction on this manual to eliminate failure by replace LCD panel.
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