Get your phone's privacy viewing profile: sharp head-on, dark from the seat next to you on the bus, in a line or at a cafe.
Get my privacy profileNext, you confirm your phone model.
Your seat: head-on, everything stays sharp and readable.
Newest entry first. Watching someone's screen to see what is on it is called shoulder surfing. It happens close up, from the next seat or the next spot in a line, and that is how a PIN or a password gets seen in public. From the Wikipedia article about shoulder surfing, read on the day this was written: Shoulder surfing (computer security) Your screen sends light out in all directions, so anyone at an angle can read it. Your privacy viewing profile keeps the light that comes straight to your eyes and dims what goes toward the sides. You read as usual; the person next to you sees a dark screen. The profile holds two readings of your display: a side-angle dimming curve, which follows how the picture fades as the viewing angle moves off centre, and a direct-view clarity map, which shows where it remains sharp head-on. A physical privacy filter does the same job with tiny slats inside a film, set like window blinds: light that travels straight passes between them, light leaving at a steep angle hits them. That is why such filters narrow the viewing angle and stop a screen from being read from the side.Reading over a shoulder has a name
Four places the next seat can read
On the bus, who is near enough to read?
In a queue, who stands next to your phone?
At a cafe, who's sitting at the next table?
On a train, who's sharing your armrest?
How the side view goes dark
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