To this shadow on the screen is also known as Burn-In effect, burn or screen ghost, the same is caused by the irregular use of the pixels, so that it always appears a shadow of that image
Burn-In effect, burn or screen phantom, it happens when the points of light that produce the images on the screen lose intensity due to prolonged use. In addition, the irregular use (having only a part of the illuminated screen for a long time) can “burn” that image on the screen, so you will always remain visible.
This problem is common and affects mainly to OLED screens (although the LCD screens are not free from this problem). The models of smartphones that bring the navigation buttons on the screen are often the victims of this problem.
There are solutions to restore the quality of image in your device, above all thanks to an application.
The problem of burn-in appears when we have the same image is fixed for a period of time. So one of the best ways to avoid this is to prevent it. To do this we have three basic tips to take care of your screen in front of the effect Burn-In: Adjusts the Display automatic power off to one minute or less. Activates the automatic brightness. If the screen has advanced settings to maximize the satures not colors
The principle of the implementation is simple: displays a sequence of primary colors through the surface of the screen of your device, so that those pixels “burned” is restored. This was, in fact, the main function of the screensavers computers: a dynamic image that appears when the screen is inactive for a long time, so that the pixels do not stay lit all the time in the same area.
The problem of burn-in appears when we have the same image is fixed for a period of time
It is important to the proper use of the models of Blackberry smartphones