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3M Touch Systems

Touchscreen Technologies
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3M Touch Systems

3M™ MicroTouch™ System SCT3855EX

Privacy Solution to Protect Confidential Information

MicroTouch™ System SCT3855EXWith more than 20 years of surface capacitive and light control film technology expertise, 3M Touch Systems has combined these two core competencies to create an integrated viewer privacy touch solution. The 3M™ MicroTouch™ System SCT3855EX is integrated with 3M's Vikuiti™ Advanced Light Control Film (ALCF) privacy technology to simplify the OEM's supply chain. Combining two unique 3M technologies provides OEMs with a fully warranted solution that has been specifically designed and manufactured for use where privacy and touch are essential, such as secure financial transactions. With this integrated solution, 3M bonds the Vikuiti ALCF film at the optimal manufacturing process to ensure robust sealability while facilitating integration.

Fully Integrated Privacy Solution

  • Provides user privacy when displaying sensitive information outside of the 60 degree viewing angle
  • Simplifies the supply chain with an integrated "viewer privacy" touch solution from one source
  • Fully warranted integrated design facilitates ease of integration and reliable sealability against moisture

All Glass Solution with 3M™ ClearTek™ Hard Coat

  • High light transmission provides superior display performance
  • Enhanced surface durability maintains optical and functional performance

3M™ MicroTouch™ Electronics EX

  • 3M ASIC creates industry-leading fast and accurate touch response
  • High electro static discharge (ESD) performance for demanding applications
  • High mean time between failures (MTBF) provides reliable system performance over the life of the touch solution

Scratch-Resistant Top Coat

  • Low surface energy resists surface scratching that maintains optical properties
  • Smooth surface allows better drag and draw performance and feel
  • Durable finish for easy-to-clean surface reduces maintenance time

System Performance

  • Light Transmission: 65.5% Typical
  • Input Method: Finger contact
  • Accuracy: > 99% of true position
  • Resolution: 1024 x 1024, but capable of 16K x16K when used with EX controllers
  • Linearization: Factory linearized
  • Tail Connection: Solder-less design

Electronics (3M MicroTouch Controller EX)

  • Communication: USB, Serial, USB HID Digitizer
  • Dimensions: 1.30" x 2.55" x 0.45« , 33.0 x 65.0 x 11.4 mm
  • Operating Current: USB: 75 mA (typical), Serial: 85 mA (typical)
  • Sleep Current: < 500 uA
  • Power Connection: USB: 5Vdc ± 5% 75 mA, Serial: 5-12Vdc ± 5% 85 mA
  • Connectors: 5-pin locking AMP (Touch side), 5-pin Molex (COM side)
  • ESD: ±8KV Contact, ±27KV Air
  • Point Speed (PPS): 200 pps
  • Minimum Touch Time: 5.4 ms
  • MTBF > 700,000 hours


  • Surface Obstructions: Withstands most surface contaminants
  • Chemical Resistance: ASTM-D-1308-02 and ASTM-F-1598-95
  • Liquid Resistance: Liquids on screen do not impede touch performance
  • Operating Temperature: -40º C to +70º C for touch screen
  • Storage Temperature: -50º C to +70º C
  • Humidity: Up to 90% RH from 0º C to 35º C, non-condensing


  • Glass Thickness:1.49" (3.78 mm)
  • Display Size:12.1" to 19" standard (<12.1" custom)
  • Viewing Angle: 60 degrees
  • Louver Angle: 7 degrees (typical) – Moire´ prevention
  • Surface Scratch Hardness: MoHS 7 or higher to induce a functional failure
  • Scratch Resistance: 3M™ ClearTek™ hard coat
  • Sealing: NEMA 4X / IP66, complete water-resistant seal compatible
  • Cleaning: Water, isopropyl alcohol, or similar non-abrasive cleaners
  • RoHS Directive Compliant: Yes

System Warranty

  • 3 years on integrated touch/film system with "unlimited touches"

MT7 Gestures

MT7 Gestures allow customers to use prebuilt software libraries to add intuitive gesture recognition to their touch applications. This application program interface (API) incorporates "single finger gesture recognition", as well as a programmable "radial menu" feature that allow developers to enhance their user interface with intuitive touch features. These four libraries are included in the MT7 Gestures API:

  • MT7 Trace collects user touch actions into traces, each representing a single touch down, drag, and lift off sequence.
  • MT7 Stroke takes a trace and matches it against an applicationdefined collection of reference strokes. Based on the match, the application determines what action is intended.
  • MT7 Radial presents a radial menu (a.k.a. pie menu) for the user to select an option that the application responds to.
  • MT7 Box Tool takes one or two traces and monitors their position, returning any change in distance or angle between a trace and a reference point or another trace.

Click here for information on the 3M MicroTouch Software MT7 features, drivers and control panel.

Display Size USB Part Number Serial Part Number
12.1” 98-0003-3607-7 98-0003-3607-7
15” 98-0003-3610-1 98-0003-3609-3
17” 98-0003-3613-5 98-0003-3612-7
19” 98-0003-3616-8 98-0003-3615-0