Black Screen is an app that lets you test your display with full black screen mode in a single click. You can use this to check if your mobile screen has any issues such as dead pixels, stuck pixels or backlight bleeding, etc.

There are 6 predefined color modes available for display testing.

* Black Screen
* White Screen
* Red Screen
* Green Screen
* Blue Screen
* Custom Color (Choose any color of your choice)

How to Use the Black Screen app?
It is really intuitive app where you have to simply click on the color you want to test with and the screen will enter full-screen mode filled with the selected color.

Then, you can observe closely to see if there are any issues with the mobile display.

Apart from that, this app also bundles two very important tools as follows

1. Dead Pixel Test - To detect dead pixels on the screen.
2. Backlight Bleeding Test - To detect light bleed issues on the screen.