Dr. H. Nikolaus Schaller hns at
Tue Oct 2 09:23:12 CEST 2007

SIEMENS had shown such a display speaker at CeBIT 2002.

Here a German blog entry with some photos and descriptions: 

Am 02.10.2007 um 08:52 schrieb Sven Klomp:

> I didn't thought about the subject. Hopefully, nobody will put me on a
> blacklist ;-)
> On Tuesday 02 October 2007 00:49, Robin Paulson wrote:
>> On 02/10/2007, Shawn Rutledge <shawn.t.rutledge at> wrote:
>>> The idea from the Jackito sounded good to me - use the screen  
>>> surface
>>> as the audio transducer, that way if you play a low-frequency sound
>>> you can feel it with your fingers.  And it's much lower-power than
>>> using the vibrator.  But I'm not sure how you attach a piezo to the
>>> screen; maybe the idea is to just vibrate the touchscreen film so as
>>> to have lower mass.
>> i'm not sure that's a good idea: is the screen designed to take such
>> repeated vibrations, they're usually pretty sensitive?
> Do you think this applies also for the build-in vibrator (give me  
> another
> name :-) )? I don't hope, that many incoming phone calls will harm my
> display.
> I think the two constraints are the battery an the livetime of the  
> motor.
>> imo the whole idea would get pretty annoying after the initial  
>> novelty
>> wore off, and i'm sure most people will disable it pretty quickly
> For sure, it will be annoying if you use it for every keystroke  
> while typing a
> message. But for special buttons like hang-up or close an  
> application,  it
> might be very comfortable.
> Greetings,
> Sven
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