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LCD ANNOYANCES

IDENTIFYING MANUFACTURER'S PIXEL DEFECTS

The Annoyance:

I took a close look at my new laptop's LCD, and I saw more than a few black pixels on my white desktop.

The Fix:

A series of microscopic transistors operates each pixel in an LCD display. (Today's LCDs easily incorporate several million transistors.) Obviously, a manufacturer wants each and every one of those transistors to work flawlessly, but a bad transistor can result in a pixel with a fixed color.


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