Friday, July 29, 2016
Search
  
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
Alphabet Posts Strong Revenue on Video Market
Games Outweigh Sagging Sensors For Sony
Microsoft To Further Cut Jobs Towards The Final Exit From Phone Business
AMD Radeon RX 470 And RX 460 Are Shipping in Early August
Worldwide Smartphone Volumes Relatively Flat in Q2 2016
Oracle to Buy NetSuite for $9.3 Billion
Samsung and Nestle Collaborate on the Internet of Things and Nutrition
Home Appliance and Home Entertainment Units Help LG's Quarterly Profits
Active Discussions
Which of these DVD media are the best, most durable?
How to back up a PS2 DL game
Copy a protected DVD?
roxio issues with xp pro
Help make DVDInfoPro better with dvdinfomantis!!!
menu making
Optiarc AD-7260S review
cdrw trouble
 Home > News > Mobiles > iPhone ...
Last 7 Days News : SU MO TU WE TH FR SA All News

Monday, January 11, 2010
iPhone Wins Nexus One in Smartphone Touchscreen Performance Test


The Google Nexus One, Motorola Droid, and the iPhone have been put to the test to find out which smartphone has a better touchscreen. But despite overall more capable hardware, the iPhone still has a better display, a recent test shows.

MOTO Development Group unveiled a video and photographs of a touchscreen performance test between the Google Nexus One, the Apple iPhone, the Motorola Droid, and the HTC Verizon Droid Eris.

The iPhone?s touch sensor showed the most linear tracking with the least amount of stair-stepping, according to the test. The Droid Eris and Nexus One tied for second with only faint wiggling ? but actually performed best at the edge of the screen. Last in the line-up was the Motorola Droid, which demonstrated significant wavy artifacts or "stair-stepping."



MOTO Development Group created the simple technique so that anyone can evaluate the resolution and accuracy of touchscreen devices before they buy. To conduct the test, consumers open a basic drawing program and draw a few diagonal lines drawn across the screen.

On a quality touchscreen, people can draw clean straight lines, even while going very slowly. The image that appears on screen accurately represents the slowly drawn lines. However, on inferior touchscreens, it?s basically impossible to draw straight lines. Instead, the lines look jagged, stair-stepped or zig-zag, no matter how slowly you go. The inferior image results from 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.

A good touchscreen device will produce linear output regardless of whether you're using the full pad of your finger, or just the edge. If you want to test the most extreme performance, draw very lightly with the edge of your finger. The artifacts will increase significantly, showing which device is really the best with a weak signal.

Even on a single device, the amount of pressure and the part of the finger you use on the screen has an impact on how well it senses. This is important because quick keyboard use and light flicks on the screen really push the limits of the touch panel's ability to sense.

A good touchscreen device will produce linear output regardless of whether you're using the full pad of your finger, or just the dry corner of your cuticle. When comparing devices, make sure to use even pressure across all of them.

Small differences in touchscreen sensitivity actually reveal exponential difference in performance. Less sensitive touchscreen systems are infuriating to use for typing.

To create a superior touchscreen experience, the key is to develop a touchscreen sensor that has the highest possible signal-to-noise ratio, or SNR. When a manufacturer gets it right, the device tracks touch inputs almost as if they were connected to physical objects in the real world. Key drivers of SNR include:

- Conductive sensor material
- Substrate material
- Substrate thickness
- Distance from display (the biggest noise source)
- Sensing waveform
- Sensor pitch
- Analog sensing circuitry
- Sample rate

Touchscreens are a powerful way for device manufacturers to differentiate their products in an intensely competitive marketplace. But as MOTO?s demonstration shows, there?s a right way and a wrong way to deploy the technology.

The video and photos of MOTO?s "DIY Smartphone Touchscreen Analysis" experience is available here: http://labs.moto.com/diy-touchscreen-analysis


Previous
Next
Google Nexus One Carries $174.15 Materials Cost, iSuppli Teardown Reveals        All News        Kodak, Samsung Enter Into Technology Cross License
Google Nexus One Carries $174.15 Materials Cost, iSuppli Teardown Reveals     Mobiles News      CES 2010: LG Phones Demonstrate LTE

Get RSS feed Easy Print E-Mail this Message

Related News
iPhone 7 Rumored To Launch September 16th
Production of iPhone7 Starts At Foxconn's factory: report
Can iPhone 7 Smartphones Fuel Sales?
iPhone 7 Case Makers Unveil Design Elements Of New Smartphone
Apple Supplier Talks About All-glass iPhone
iPhone 7 May Not Be Enough to Boost Apple's Sales
Samsung To Supply EMI-shielded NAND Flash Memory to Apple: report
KGI Analyst Says iPhone 7 To Feature 'All glass' Enclosure Along With An AMOLED Screen
Fitch Sees An OLED iPhone Coming Soon
iPhone SE Shares Features And Parts With Three iPhone Generations, Teardown Reveals
Some Thoughts About The New iPhone SE
Apple Introduces $400 iPhone SE And 9.7-inch iPad Pro

Most Popular News
 
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2016 - All rights reserved -
Privacy policy - Contact Us .