In 2007, when the first iPhone debuted, interactive touch screens were seen as a new and exciting way to interact with technology. All screen, no button- they were designed to be user-friendly and easy to use. Nowadays, touch screens is a staple for interactive technologies. But how did they get here? How were interactive touch screen designed and prototyped in 2007? We found some old INVIVIA blogs that documented the prototype process for Touch Screen design.

We found these blog posts interesting, and hope that you do too! Here's a little peak into various touch screen experiments we did in 2007:

  1. Z-Depth Touch Screen
  2. Curved Touch Screen
  3. Touch Screen + LED
  4. Touch Screen Instruments
  5. Touch Screen V5

Touch Screen LED

I thought you’d all like to see the first integrated screen and LED Guide working.

interactive touch screen

So, What's different from previous versions, you might ask?
– LED Guide, touch surface, video screen and backing sheet are now in one strong, reasonably nice looking frame
– LED orientation gives even light distribution across screen using only side arrays
– Heat dissipation into frame is reduced and now manageable.

What needs to be done next?
– Narrow beam LED circuits need to be made and tested. As it stands, I am 2 circuits short of filling the screen with light and found some narrow beam, very bright LEDs that should be tried… they will reduce spillover and may improve performance.

– Decide on housing shape (table, kiosk…convertible?) and build it (or whatever variations seem to make sense) so you guys can have a new toy to play with and we can begin to get some applications developed and running on it…

Here are some development process pix:

The AutoCAD cross section
interactive touch screen design prototype- mill work
Milling the slot to hold the touch surface…
prototype- mill work
just finished cutting the shelf that makes connection to next piece
prototype- mill work
the four pieces before cutting off clamp ends
prototype- LED work
partially assembled showing LED circuits.

cheers, ronmac (Oct 16, 2007)

If you liked this, see House Zero for some more interactive LED.

Till next time!