In reality, a pixel is made of three sub pixels - one red, one green and one blue. Simply put, a pixel is a dot on your screen that turns on or off and changes color according to the image that your device wants to display. You will be redirected to our test results page where you can let us know how your dead pixel test went.įrequently asked questions on the dead pixel test What is a pixel? Once you are done, click on the cross at the top of the screen.A dead pixel will always display black - all three sub pixels dead -, whereas a stuck pixel will be stuck to a specific color - usually a combination of one or more stuck sub pixels. A pixel is in reality made of three sub pixels, one red, one green and one blue - check our post on what a dead pixel is for more details - that light up fully or partially depending on the color that must be displayed. Keep in mind that a malfunctioning pixel can either be dead or stuck.Make sure to carefully inspect your screen for dead pixels with each color. Then, either use your mouse to change colors, tap your screen, or use your keyboard arrows.
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Displaying a single color on your full screen will help you detect if there are any missed displayed dot or pixel such as on the picture below. Your web browser will go full screen and display a single color. In case you are browsing from a mobile device, we recommend you to run one of our dead pixel test videos. You will be redirected to our online testing app that will help you to check if you have any dead pixel on your screen.
To prepare your screen to be tested for dead pixels, grab a piece of soft cloth, preferably a high-density one. If it is not, you might mistake dust or dirt for a dead pixel. Make sure your screen, monitor, or display is as clean as can be.To run a dead pixel test on, simply follow these steps:
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