There are as many valid reasons for specifying a single or two-point touch sensing technology as there are for specifying a touchscreen capable of measuring 40 touches.
10 FINGER MULTITOUCH MONITOR PC
Simply put, what is the point of installing a state-of-the-art, 100-point touch sensing technology, outputting X-Y touch coordinates at less than five millisecond speeds, if you are marrying it up to a budget PC running integrated graphics processing, an outdated OS and poorly designed application software? Unless all these elements of the system have been designed to work optimally with each other, the user experience will be disappointing. This is because the touch sensor and its associated control electronics (identifying and outputting the touches) are components in larger, more complex systems and must interface with the computer hardware, the chosen operating system, and application software. Reaching beyond 40-60 touch points often surpasses useful, usable touchscreen performance for most applications. Throw in the need to filter out "palm rejection" events and it becomes more understandable why such an installation must be capable of measuring 40 or more touch points. On an 85-inch touch table, for example, it’s likely that four or more people may use the screen concurrently.
These are increasingly found in corporate, retail and leisure environments, for multi-user collaboration and interaction. Touch interactivity requirements step up dramatically when a large touchscreen is installed horizontally in a table format. However, large screens mounted in a landscape orientation (such as interactive white boards for classrooms and corporate meeting areas) invite interaction from multiple users, and therefore supporting at least 20 touch points is recommended. As a consequence, 10 touch points are generally sufficient. As touch displays become larger, more consideration must be given to the application of the touchscreen, and the number of touch points should be adjusted accordingly.Īgain, in most large wall-mounted touchscreens – especially those in portrait orientation, such as wayfinders in shopping malls – the application is really designed for single-user interaction. Ten touchpoints (two hands) should be sufficient for the majority of applications using displays of this size. However, most touchscreens 20 inches and smaller are used in applications where a single user interfaces with a single display. recognizing and ignoring the presence of a large object placed on a screen as an anomalous touch resulting from a user leaning on the surface. It also has the potential to allow "palm rejection" to be added to the system, i.e.
10 FINGER MULTITOUCH MONITOR SOFTWARE
Specifying the appropriate hardware and software ensures the installation will perform as it’s intended, and saves the customer from unnecessarily overspending on components that exceed the installation's requirements.īeing able to track a greater number of touch points enables software developers to create increasingly complex applications, with a broader variety of gestures recognized.
Therefore it's now more important than ever to understand how a particular touchscreen is expected to perform. But few applications require such robust touch interactivity. Some touch sensors now make it possible to utilize an unlimited number of touch points. And while this competitive escalation is instrumental in pushing the industry forward, focusing on specs alone obscures the more important issue of understanding the touch requirements of each unique application. Touch sensor manufacturers are engaged in an "arms race" of sorts, each striving to achieve a greater capacity of touch points. Add to this the trend toward larger touchscreens used in collaborative, multi-user applications and the requirement for touch sensors capable of such performance is clear.Īs customer demand for sophisticated touch interactivity increases, software and hardware companies working in this field must keep abreast of the technical requirements to support these advanced use cases. Simple "button pressing" has evolved to more sophisticated interaction such as two-finger pinch-to-zoom and other complex gestures. Multi-touch screens have become increasingly popular with the desire to add greater functionality to the user interface.
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