The 3M™ Multi-Touch Display C3266PW is engineered as a fully-integrated 32" multi-touch display that combines cutting-edge 3M Projected Capacitive Touch Technology (3M PCT) with a stunning industrial grade, full high-definition, 120Hz LCD display.
Casino Gaming, Geospatial, Point-of-Information (POI), Training and Simulation, Wayfinding, Pro Audio/Visual, Telepresence, Security Monitoring Systems, Retail Product Selectors, Broadcast, Arcade Gaming, Digital Signage
360 cd/m2 (nit) typical
Thin Glove, Finger
IPS (In Plane Switching)
1920 x 1080
Number of Touch Points
40 points with palm rejection
0 to +40 degrees C, Non-condensing 85%, Relative Humidity
Operating System Support
Linux, Windows 8/7/Vista/XP, Mac OS
.364 mm x .364 mm
Internal 110/220 VAC Power Supply
-10 to +60 degrees C
Auto detecting, USB, RS232 (Serial)
Touch Point Speed
3M Projected Capacitive
200 mm x 200 mm
Display Port, VGA, DVI, HDMI
Video Response Time
10 milliseconds (typical)
Horizontal/Vertical: 178 degrees typical
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.
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.