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3M™ Multi-Touch System PCT2000PX

 
PCT2455PX System
PCT2455PX System
The Innovative Choice for Next Generation User Interfaces
With more than 25 years of capacitive touch sensing and manufacturing expertise, 3M has developed a purpose-built multi-touch system for applications that demand high-performance multi-touch functionality for displays ranging from 15 to 32 inches. The 3M™ Multi-Touch System PCT2000PX provides customers with a leading-edge solution that resolves up to 40 simultaneous multi-touch events with palm rejection at speeds 167% faster than the 60 Hz refresh rate of many industrial displays. This innovative multi-touch solution goes beyond two-touch gestures to enable intuitive, easy-to-use natural user interfaces that can create more engaging user experiences.
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3M IDDiagonal SizeControllerAspect RatioOuter Area XOuter Area YView Area X
9811000271821.5 InchUSBWide20.465 Inch12.548 Inch18.83 Inch
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9811000274223 InchUSBWide21.807 Inch12.704 Inch20.148 Inch
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9811000323724 InchUSBWide22.684 Inch13.853 Inch21 Inch
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9811000282515.6 InchUSBWide15.17 Inch9.454 Inch13.63 Inch
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9800034203447 InchUSBWide43.319 Inch25.236 Inch41.05 Inch
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9811000320320 InchUSBWide19.113 Inch11.771 Inch17.512 Inch
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9800033779427 InchDual Mode (USB/Serial)Wide
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9811000324515 InchUSBStandard13.629 Inch10.755 Inch12.05 Inch
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9811000322918.5 InchUSBWide17.791 Inch10.961 Inch16.205 Inch
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9800034164840 InchUSBWide36.821 Inch21.634 Inch34.905 Inch
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9811000284117 InchUSBStandard15.018 Inch12.429 Inch13.383 Inch
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9800034205937 InchUSBWide34.242 Inch20.09 Inch32.376 Inch
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9811000258539 InchUSBWide35.535 Inch20.862 Inch33.717 Inch
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9811000321119 InchUSBStandard16.58 Inch13.724 Inch14.894 Inch
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9800034161442 InchUSBWide38.619 Inch22.663 Inch36.742 Inch
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How Projected Capacitive Technology Works

Projected capacitive technologies detect touch by measuring the capacitance at each addressable electrode. When a finger or a conductive stylus approaches an electrode, it disturbs the electromagnetic field and alters the capacitance. This change in capacitance can be measured by the electronics and then converted into X,Y locations that the system can use to detect touch.


3M Project Capacitive Technology (3M PCT) is based on mutual capacitance to create multi-touch interactive. Mutual capacitance is the intentional or unintentional capacitance between two "charge holding objects” (see illustration). Projected capacitance touchscreens intentionally create mutual capacitance between elements of columns and rows in the vicinity where each intersect the other. This allows the system electronics to measure each node (intersection) individually to detect multiple touches on the screen during one screen scan.

How Projected Capacitive Works

When a finger touches near an intersection, some of the mutual capacitance between the row and column is coupled to the finger which reduce the capacitance at the intersection as measured by the system electronics. This reduced capacitance crosses the "touch threshold" set by the electronics indicating a touch has occurred.


See the Projected Capacitive Technology Overview for additional detailed information on this technology.