If all are turned off, it will display black. For instance, if all three sub pixels are lit to full power, your pixel will show white. Each of them can light up to a certain percentage to allow your pixel to display every color it needs. 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.
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