[quote name='Ruahrc']Given the low pixel count of the screens, I bet that modern LCD manufacturing techniques result in very high yields on LCDs this size. Therefore I would expect that dead pixels on a DS would be pretty rare. Do they exist? I am sure, they do, but I would not buy a DS in fear that it has a dead pixel!
Ruahrc[/quote]
QFT. In fact, due to the small screen size, I'd even argue that dead pixels are inexcusable on a DS. If someone tries to tell you that dead pixels are normal for LCD screens and tries to compare the DS to laptop/LCD monitors, you should call bullshit on that.
Here's a simple example. The DS has about 100k pixels. (256x192 per screen). A fairly modest LCD monitor (1280x1024) has about 1.3 million pixels. For the sake of argument, assume that a LCD manufacturer produces one bad pixel for every 1 million pixels. Every single one of their monitors will average 1.3 bad pixels. That's why they won't take returns on one, or a few bad pixels. Now compare that to the (small) DS screen. With the same yield numbers, the same LCD manufacturer would produce 9 good DS's for every one with a single dead pixel.