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Commanding a computer, smartphone or tablet via a touchscreen or touchpad by using more than one finger. A multitouch display is sensitive to gestures, which are predefined motions that perform an action such as rotating an object.

Apple popularized multitouch in its iPhone and iPod touch, especially for zooming in and out of screen images, known as "pinch-to-zoom." Expanding a photo by sliding thumb and forefinger apart and pinching them together to restore the original size was greeted with delight when people first saw that feature.

Sensing Deflected Light
Most multitouch devices use capacitive screens that depend on a user's finger to draw current (see touchscreen). However, Microsoft's tablet top computer (see image below) and the large wall-mounted screens seen on TV use deflected light. For example, the CNN "Magic Wall" election map that enables journalists to track American political candidates state by state is a multitouch panel from Perceptive Pixel. These displays project images onto acrylic screens along with near-infrared or infrared light from one or more LED light sources. When fingers touch the screen, the light is deflected, and sensors pick up the changes. See touch scroll, Magic Mouse and gesture recognition.

An Electronic Light Table
Introduced in 2008, Microsoft's multitouch Surface computer let people manipulate objects more like the real world. In this light table example, photos are moved around as if they were printed on paper, but can also be resized. See PixelSense. (Image courtesy of Microsoft Corporation.)
References in periodicals archive ?
nl/en/project/local-stories) application and a multitouch table.
Similarly, multitouch displays and multitouch interaction are described in more detail as they are considered in the case studies for the thesis.
In the case decided on Friday, the ITC found that Samsung had infringed the feature patent for a multitouch screen that names Apple co-founder Steve Jobs as one of the inventors, and another for detecting when headphone jacks are plugged in.
In combination with Microchip's free graphics and multitouch software, this board enables rich, modern user interfaces for cost-sensitive designs in a broad range of markets, such as consumer, industrial and medical.
SMART's DViT (Digital Vision Touch) technology supports common multitouch gestures, such as zooming and scrolling, which are recognised by the Microsoft Windows 7 operating system.
Avidyne's iFD540 GPS (GNS 530 replacement) will have a multitouch screen like an iPhone .
12 -- Multitouch on the iPad and other media tablets has liberated users from the hardware keyboard and pointing device (aka the mouse), and as media tablets become more commonplace, users will expect the convenience and simplicity of multitouch user interfaces when they interact with other computing devices, according to Gartner, Inc.
Beginning with an overview of AIR and it prerequisites, the work covers topics such as device capability evaluation, permissions, certificates and installation, multitouch, accessing handset assets and hardware acceleration.
LG E900 Optimus Easily the best screen of the three - crystal sharp particularly for videos and games, with four-point multitouch.
Now, just 2 years later, the same team of engineers and developers are on the cutting edge of multitouch technology for the armed forces.
Multitouch zooming on maps is painfully jerky, and sluggish rendering of web pages makes surfing a chore.
En lo que respecta a Space IT, presento su portafolio actual con especial enfoque en su proximo lanzamiento: Livepad7 multitouch.