In digital imaging, a pixel (abbreviated px), pel, or picture element is the smallest addressable element in a raster image, or the smallest addressable element in a dot matrix display device. In most digital display devices, pixels are the smallest element that can be manipulated through software. Each pixel is a sample of an original or synthetic image; more samples typically provide more accurate representations of the original. The intensity of each pixel is variable. In color imaging systems, a color is typically represented by three or four component intensities such as red, green, and blue, or cyan, magenta, yellow, and black.
In some contexts (such as descriptions of camera sensors), pixel refers to a single scalar element of a multi-component representation (called a photosite in the camera sensor context, although sensel is sometimes used), while in yet other contexts (like MRI) it may refer to a set of component intensities for a spatial position. Whether it’s on your laptop, desktop display, or smartphone, a dead pixel may be a major headache. Fortunately, there are methods you may occasionally use to restore that dead pixel back to life, even though it’s not the best indication of the health of the monitor. Don’t give up if your equipment is out of warranty or if you don’t want to take it to a technician. Here’s a quick guide on how to revive a dead pixel.
Fix a dead pixel with JScreenFix
Step 1: Go to the JScreenFix website. Open your favorite browser and navigate to the JScreenFix homepage.
Step 2: Launch the web app. Select the Launch JScreenFix button at the bottom of the page.
Alternative ways to fix dead pixels
Pixel Healer (Windows)
PixelHealer is an entirely free application from Aurelitec that fixes pixel problems. It’s compatible with Windows 7, 8, 10, Vista, or XP. Once downloaded, Pixel Healer will present you with a colored box window and a settings menu. It is important to note, though, that users who are sensitive to flashing images should not look directly at the box/app window, because as the app runs, the window will then flash multiple colors in quick succession.
Pixel Healer is more likely to work on a stuck pixel that shows signs of life than a dead pixel, which may stay unresponsive, but there’s a chance it can fix both, so give this dead pixel fix a try regardless of how your wounded pixel is behaving.
Android Test and Fix for Dead Pixels
With a name this simple, you can tell that Dead Pixels Test and Fix (DPTF) is a dead pixel fix that can locate and maybe cure dead or stuck pixels. It is a free program with a straightforward and self-explanatory user interface. Similar to its rival programs, Dead Pixels Test and Fix scans your screen for broken pixels using a sequence of solid color blank-outs.
Dead Pixels Test and Fix’s creators advise users to give it at least 10 minutes to fix every pixel, but we found that leaving it running for a few hours gave us better results because it had time to fix every one of them.
The developers recommend that you let Dead Pixels Test and Fix run for at least 10 minutes to fix all of the pixels, but we had better results when we left it running for a couple of hours so it had time to fix all of the dead pixels. You’re going to need to have a full battery or your device connected to a power source while you execute this tool.