DIY touchscreen test gives iPhone top marks

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While smartphones have certainly upped their resolutions in recent months, Apple’s iPhone line doesn’t usually garner negative reviews based upon the quality of their display panels, at least as far as their accuracy is concerned. The guys at MOTO Labs have come up with an easily reproducible DIY test that anyone can do to see exactly how accurate their smartphone’s touchscreen is. No surprise here: the iPhone’s is best of class, when compared to the HTC Nexus One, the Motorola Droid and the HTC Droid Eris.

The test works like this: opening a drawing program on your smartphone and slowly draw a grid of intersecting diagonal lines across the touchscreen with your finger. If the lines are smooth, the engineers of the smartphone have managed to seamlessly integrate the hardware components and software of the touchscreen display; if they are jagged, something’s off.

According to MOTO Labs, you need to go slowly because “on inferior touchscreens, it’s basically impossible to draw straight lines. Instead, the lines look jagged or zig-zag, no matter how slowly you go, because the sensor size is too big, the touch-sampling rate is too low, and/or the algorithms that convert gestures into images are too non-linear to faithfully represent user inputs.”

This is, of course, hardly a scientific test, but it’s hard to look at the comparison images between, say, the iPhone and the Motorola Droid and not see a major discrepancy in terms of quality. Apple’s flawless implementation of reliable touchscreen displays in the iPhone line is certainly a feather in their cap compared to the competition, and a great example of just how hard Cupertino works to get the details just right.