Polaroid FLM-2632 - 26" LCD TV, Service Manual

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In some cases, a panel may have defective cells that cannot be controlled.
These defective cells can be categorized into two types;
(1) Non-lighting or dark cell defect: defect in which the cell is always off
(2) Non-extinguishing or bright cell defect: defect in which the cell is always on
The display cell defect specifications define the allowed limits for display cell defects and are
used as the criteria in determining whether a panel is replaced.
Item Specification
Bright cell 2 and less
Dark cell 7 and less
All bright and dark
cells combined 7 and less
Neighboring
bright cells 1 pair and less
Neighboring dark
cells 2 pair and less
Neighboring bright
cells of 3 or more in
a group None permitted
Distance between
bright cells
>15mm
Distance between
dark cells
>0mm
4. Display Cell Defect Specification