Defective pixels are pixels on a liquid crystal display (LCD) not performing as expected. They are basically of three types; dark dot defects, bright dot defects which show white dots on screen and partial sub-pixel defect which is a manufacturing defect in which the RGB film layer was not cut properly.
When a LCD gets such a problem you end up seeing tiny red, green, or white dots on your screen as shown above. In certain cases we can get rid of such dots provided they are stuck pixels.
-Try rubbing gently on the screen where the dot(s) appear. This will reset the pixel.
-By cycling the color value of the stuck pixel rapidly: This can be done by running a bright flashy screen saver.
-Lastly, simply tolerating the stuck pixel until it disappears. Oh boy! This may even take years!
Tools to fix stuck pixels:
The JScreenFix Java applet helps fix stuck pixels and image persistence on LCD screens and reduces burn-in on plasma screens. The applet runs safely inside a web browser, does not require installation and works with Windows, Linux and Mac computers. It repairs most stuck pixels in under 20 minutes, and mild screen burn-in within 12 hours.
Dead Pixel Test:
Dead Pixels Test is an online tool to detect the dead pixels on LCDs. If you’re gonna buy a new monitor, you can request the dealer to hook up the LCD monitor that you’re gonna purchase and serve the Internet for a try. So, head over to Dead Pixels Test website and detect any dead pixels on the LCD, before you carry it home.
It’s a program that helps to locate and fix LCD screens dead pixels. You can fix the stuck pixels by calling them to do rapid changes. You need to run this program for a couple of hours.