Effects on the display:
Not If you change the display brightness in the device, it appears darker because of the film. But it can get used to very quickly. Those who do not can or wants, the simple, the display brightness in the unit higher.
In addition to protection against lateral insights (. Eg if you sit in the car), the film has another 2 great advantages:
1. You do not see more fingerprints on the screen, because the film is matt. Thus, one does not have the display also clean all nose long.
2. On a display with no privacy film slide your fingers if you have very warm hands, because of the smooth display surface is not as good, but falter again. With glued privacy film that belongs to the past. No matter how warm are the hands, the finger slides always loose and easily via the display.
3. It protects against scratches. Since it is relatively thick, a lot of power would probably be expended all right to scratch the screen through the film.
I highly recommend this film only to anyone who wants to prevent his side sedentary people can look at the display without any restrictions.