How to Check Dead Pixels on the Computer Screen, Laptop

This guide explains how to check Dead Pixels on the Computer Screen, Laptop, with clear steps, practical tips, and important checks before you begin.

When the screen has a pixel error, that defective pixel is different from the rest of the pixels. So the way to check the pixel error on the screen is to use a monochrome image to display helps us easily detect dead pixels.

The simplest way to check pixels is that you can go online to download monochrome images to your computer and open the full screen to check pixels or use a professional software called Dead Pixel Locator below.

Download link: http://www. astris. com/dpl/

After downloading, you do not need to install it, just open it to use it because this software is very compact.

The main interface of the software:

To test the screen you just need to click on any color you want, then the whole screen will display the color you have chosen. You can use the arrow keys to switch to another color and press ESC to exit.

You should switch back and forth to many colors to double check whether any pixels are the wrong color or not displayed or not. If there are no defective pixels, your monitor is still functioning properly.