What Is A Dead Pixel?

A dead pixel is a pixel on a digital display that is not functioning properly. Unlike "stuck" or "hot" pixels, which might still emit light but are stuck on a single color or display incorrect colors, a dead pixel is usually characterized by a small dot on the screen that remains black or unlit because it is not active at all.

Pixels are the smallest units on a display screen that combine to form images. Each pixel typically consists of three subpixels (red, green, and blue) in LCD displays. When all subpixels are off, the pixel appears black (dead), when all are on, the pixel appears white, and combinations of different intensities of subpixels create the full range of colors you see on the screen.

How To Fix Dead Pixels?

Fixing dead pixels can be challenging, and there's no guaranteed method for success, but here are some approaches you can try:

1. Turn Off and On: Sometimes, simply turning the monitor off for a period and then turning it back on can reset the pixel.
2. Pixel Massage: Gently apply pressure to the area with the dead pixel with a soft cloth to protect the screen. Turn the screen off, apply pressure with a stylus or similar object, then turn the screen back on. The idea is that the pressure will help the liquid crystal flow properly.
3. Pixel Fixing Software: There are several software tools available that can cycle through colors and attempt to unstick a pixel. While these are more effective for stuck pixels than dead ones, it's worth a try.
4. Heat Method: Some users have reported success using a warm, damp cloth or heating pad to gently massage the area of the dead pixel, which can sometimes help the liquid crystal flow properly.
5. Manufacturer Warranty: Check if the monitor is under warranty. Some manufacturers have a policy for dead pixels where they will replace or repair the monitor if it has a certain number of dead pixels.
6. Professional Repair: If none of the above methods work, and the issue is severe enough to warrant it, you can take the monitor to a professional for repair.

Remember that there's a risk of damaging the screen further with the pressure and heat methods, so they should be performed carefully. It's also important to note that if there are a lot of dead pixels, it might be a sign of a faulty screen, and a replacement might be the better option.