You just received a new flat screen? And it includes defective pixels?
The first is whether they are pixels or pixels, dead or alive:
- A pixel is the smallest element of an image. It is simply a tiny dot of color among the few million who make up the image. The sub-pixels make up the pixels, in effect, each pixel is composed of three sub-pixels can display 256 colors each; The three assembled can be a point 16'777'216 can display different colors. And finally, by assembling a few million pixels, you get a picture.
- The defective pixel can be for a lot of reasons (bad welds, bad contact, glue ,....), by elements against it can lead to two consequences:
- The pixel is dead: It no longer appears at all, we can see a small black hole in the middle of the other illuminated pixels.
- The pixel is strong: It is always on, it generally takes the white except in cases of dysfunction with accumulation of sub-pixels, for example.
- For the same reasons, a sub-pixel can be faulty, it will not have the same consequences. And, in theory, unless the three sub-pixels are turned off, in this case is a dead pixel. A sub-pixel black generate only a change of color pixel (since the other two sub-pixels will light).
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