This thread is about a 23” LCD FTIR multitouch stand that I am building in our research lab with the help of another lab member. I started a discussion on initial ideas which was based on a DI, in another thread but since things changed a lot, I decided to create a new thread to document this project. My main goals are to get a very good touch and gesture recognition as well as being able to rotate and tilt the screen to any desirable angle.
Daniel in the previous thread gave me the idea of punching a hole through the back light, it worked awesome! I used a 3/4” bit since thats approximately the thickness of the ps3eye lens.
I changed my design to a simple box since I am now using the LCD backlight, which is a LED by the way.
After mounting the back light.
Firing up the LCD, It works!
After mounting the side door.
So far everything has been working as expected. When we tested the FTIR panel we got very good blobs when touching but when dragging or performing gestures the blobs become much smaller and sometimes are not detected, unless you push really hard on the screen which is not a nice interaction. I will post more updates soon (hopefully tomorrow night).