Linked by Thom Holwerda on Tue 10th Jul 2012 01:24 UTC
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Member since:
2010-03-08
I've already discussed the issue of noise in another reply, so I'll just explain what makes capacitive touchscreens so unreliable as compared to all other touchscreen techs : their sensitivity to water. If your screen becomes humid for any reason (rain, sweat, freshly washed hands...), the device will start become unresponsive or register false positives in a matter of minutes. Since when do we build mobile devices that can't stand a few drops of one of the most widespread chemicals of planet Earth ?
And there is a reason why the tech is so expensive and sensitive to external perturbations too : it requires ridiculously complex hardware by its very nature. As if resistive touchscreens and their need for fine-tuned mechanical properties weren't complicated enough, the best which hardware engineers could come up with as a successor was a fine mesh of transparent electrodes stuck in the tiny space between a LCD and a protective plate, following the tiny capacitance difference induced by the presence or absence of a human finger milimeters away while shielding itself from its direct electromagnetic environment somehow ? Honestly, if they just wanted to come up with something bizarre enough that it would create tons of jobs in R&D and stimulate the economy, they could have stated the goal right away...
Edited 2012-07-10 15:35 UTC