Online Dead Pixel Test For Monitor / LCD OR and Screen

DEFECTIVE PIXEL can make your visual display screen unclear and uneasy to see or a solid color dot is seen on the screen, which requires a smart check for that to take a dead pixel test.

Full Black Screen
Full White Screen
Full Red Screen
Full Green Screen
Full Blue Screen

Steps To Perform a Stuck OR Dead Pixel Test:

If you need a quick efficient defective screen pixel detector, all you need to follow the below-mentioned very easy rules to perform.

Step 1 (optional): Clean or rinse your screen with a soft fabric to wipe away dust if any.

Step 2: Click on the “Start Test button” which will activate the full-screen mode.

Step 3: Click the Right Mouse Button, Enter, Spacebar, Up or Down key to switch to the next color screen test.

Moreover, you can exit the full screen or return back to your page by using the ESC key.

dead pixel test

The computer screen or touchscreen or any LCD (liquid crystal display) you use consists of millions of programmed tiny lights and is a composition of billions of small light spots called pixels.

The smooth output screen that you encounter is the result of fresh and functioning pixels that is a combination of primary colors RGB (RED, GREEN, BLUE). The unclear and broken screen effect is due to defective pixels or stocking of pixels on one or more colors since the images and graphics are color combinations of RGB.

Difference Between stuck pixel or a dead pixel

A stuck pixel is the one that can be of any color because it is formed due to mismatch mixing of RGB color combination or inactivity of one of the colors whereas a dead pixel is the one that appears black dark because of the dysfunctionality of all RGB colors at a time.

Now, one may encounter different types of dots like dark dots, light dots, or semi-dark dots (in between) which may be due to semi-pixel defects. Different approaches are used to estimate such problems i.e., using color pixel tests (which you can perform by using the same tool which we are proving), let’s look at each briefly.

Color (Red, green, blue) Screen Defective Pixel Test

It refers to the situation when in full-screen mode the whole LCD screen appears red and pixel defects are detected using color pixel defect locators and spots can easily be identified.

Black screen defective pixel test: It refers to the situation when in full-screen mode the whole LCD screen appears black and pixel defects are detected using light spots pixel defect locators and light spots can easily be identified as it’s a blackout and immediate identification is done by the naked human eye.

White screen defective pixel test:

Similarly, a white screen is applicable to identify dark and black spots.

So, all the above color types cover the domain of almost every type of screen pixel defect.

If you encounter such a problem, no need to worry because we provide a complete step-by-step guide to our delighted users.

Conclusively, it’s a simple computer LCD screen test to detect either stuck or dead pixels of your computer screen which annoy the users by presenting solid background and contrasting dark spots. Using our tool one can easily get on this defect and enhance their work performance by increasing visibility.


Do I need to install some software to run the dead pixel test?
The answer is not necessarily, you can easily perform this simple test online on TecAgile.
How can I fix my screen if I get more than one dead pixel area or spot on my screen?
It’s not a difficult task, one can use different ways to get on this problem. You can use pressure and heat, run some additional tests, get upper-class software to locate dead pixels, or replace your monitor screen if necessary, depending on the severity of the dead pixel issue.
How many times do I need to perform the stuck pixel test?
Well, it totally depends on the user. one may perform it twice a week to make a regular check or can even skip for a month so, free will is applicable.