Problem: Bad pixels on the LCD screen.
•The following is a table of LCD pixel inspection standard, which can offer you the necessary information to examine the LCD screen. Any condition that does not violate the standard is considered to be normal.
Term definitions:
Bright dots: When the LCD screen is lighted, dots appear bright at dark area. Red/green/blue bright dots also count.
Dark dots: When the LCD screen is lighted, dots appear black at bright area.
Distance between defective dots: The minimum distance between two defective dots.
Adjacent defective dots: Defective dots within a radius of 10mm.
| Defective dots | Distance between | Two adjacent defective | Three or more adjacent |
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LCD Type | defective dots | dots |
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| Bright | Dark | Bright | Dark | Bright | Dark | Bright | Dark |
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12.1" SVGA | N<5 | N<5 | <15mm | <15mm | <2 Pairs | <2 Pairs | Not allow | Not allow | N<8 |
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13.3" XGA | N<5 | N<7 | <15mm | <15mm | <2 Pairs | <2 Pairs | Not allow | Not allow | N<9 |
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14.1" XGA | N<5 | N<7 | <15mm | <15mm | <2 Pairs | <2 Pairs | Not allow | Not allow | N<9 |
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15" XGA | N<8 | N<8 | <15mm | <15mm | <2 Pairs | <2 Pairs | Not allow | Not allow | N<10 |
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18" XGA | N<9 | N<15 | <5mm | <20mm | <3 Pairs | <5 Pairs | Not allow | Not allow | N<20 |
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My Presario – Getting Started | Appendix |