keyboard / keypad idea

Justyn Butler justynbutler+openmoko at
Tue Jan 16 17:36:17 CET 2007

Why not modify a normal screen protector to have raised bumps in a keyboard
layout, but leave the whole thing transparent. A screen protector is just a
piece of plastic film with adhesive round the edges. The protector will live
on the screen all the time and you could probably "forget" it's there when
not using the keyboard, because you'd be reading things through it. Of
course, it would undoubtedly affect the clarity of the display where the
raised buttons are.

When you want to use the keypad, the buttons would appear on the screen in
the correct positions under the keys, a simple software matter.


On 15/01/07, Sven Neuhaus <sven-openmoko at> wrote:
> Derek Pressnall schrieb:
> > Then you would still be using the touch screen
> > for input (pressure applied to the bumps would transfer through the
> > overlay to the touch screen), but the keypad pattern would show up
> > through the bottom part of the overlay (with the "bumps") where you
> > could still "blind dial".
> >
> > Add in a hinged connection at the top of the overlay, and possibly a
> > sensor that could switch the phone's screen between normal mode and
> > "phone only" mode when the overlay is in use, and you could have a
> > very cheap method of obtainin a keypad similar to a Motorola A780.  So
> > what does everyone think?
> The Sony Ericsson P800 phone uses a keyboard like that. It's usable, but
> not really great. I found a picture at
> -Sven
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