DefectPX

If you found yourself in the unpleasant situation of purchasing an LCD monitor only to notice later that it has dead or stuck pixels. Dead pixels are not such a burden usually, especially if they are nowhere near the center of the screen. Dead and stuck pixels may appear over time, due to physical damage or power connection issues. However, when one buys a brand-new monitor, powering it up and noticing dead pixels is not going to feel good. DefectPX can help you avoid such issues by detecting dead or stuck pixels, before or after the acquisition.

Running a test with DefectPX takes no effort whatsoever. There are two ways in which you can run this tool. Once the app is launched, a small screen with a handful of colors will pop up. You can either keep that layout in the middle of your screen and use the available arrow to cycle through colors, or you can hit Esc and apply a full-screen colored layout over your monitor.

You may believe that the full-screen mode would be enough, but that's partially true. How so? Well, the application has a portable version that can be easily copied on a flash drive and brought to the store in order to test the product's screen for dead pixels. In case the seller would connect the monitor to a rig that has only a mouse, for example, you would be able to go into full-screen.

A white screen is indeed enough to make dead pixels visible, but for stuck pixels having more colors would be of better interest. Stuck pixels vary in color, they may be red, blue, or green, and sometimes, observing them on a white canvas is not possible.

In conclusion, DefectPX is that type of tool that won't claim too much of your time, as it's only necessary when you want to detect possible any dead or stuck pixels your monitor or future monitor could have. One thing to consider when using this app is your eyes, as a single color makes staring into the screen hurt a bit.