Entries by TouchGuy

When evaluating a touch screen for a hardened handheld product (the system must survive a 3-5 foot drop onto cement, and cleaning with alcohol and water), how does resistive multi-touch compare with projected capacitive, particularly for gloved hand (1-2 layers of latex or nitrile), multi-touch and gesturing GUI’s?

Scott, you get one question and one bonus question all rolled into one Touch Guy answer. With more than 50,000 iPhone touch screens being replaced per month with cracks, broken touch screens have become a big business so we kinda like the breakage. But I guess a broken screen keeping you from your Facebook page […]

I’m curious about flexible touch screens – why are there not more in the market and what are the challenges and limitations associated with them? What design considerations do I need to be aware of when integrating them?

Dear Mike: Ancient history, my man. Curved and flexible, I guess is the new “flat” which is what everybody has wanted in touch screens for that last ten years. If bell bottom pants can come back (they are called “flairs” now), then why not curved touch screens? In the days of CRTs, all touch screens […]

My engineers claim gestures on multi-touch resistive do not work nearly as well as they do on projected capacitive (PCT) used in a variety of consumer devices, like the iPhone – why is this? Have there been any recent breakthroughs with resistive multi-touch? I would appreciate any new input on this subject.

Hi Alex: When you are comparing iPhone/iPad projected capacitive (also called PCT or P-Cap) to any other (even identical) projected capacitive sensors, you may not find the performance to be as good as Apple ’s product. How can this be? It is because Apple has had a really big head-start (as in years). You and […]