PALAS - 3M™ MicroTouch™ System DST2270DX

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3M™ MicroTouch™ System DST2270DX

The 3M MicroTouch System DST2270DX, based on 3M Dispersive Signal Technology, consists of a chemically-strengthened glass substrate with piezos mounted on each corner, mated to a sophisticated, dedicated controller. The system determines the touch position by pinpointing the source of "bending waves" created by finger or stylus contact within the glass substrate. This process of interpreting bending waves within the glass substrate helps eliminate traditional performance issues related to on-screen contaminants and surface damage, and provides fast, accurate touch attributes.

Product Highlights

Fast, accurate repeatable touch
Touch operates with static objects or other touches on the screen
Touch unaffected by surface contaminants, such as liquids, dirt, dust and grime
Excellent light transmission provides vibrant optical characteristics with anti-glare properties
Operation unaffected by surface damage
Chemically-strengthened glass meets EN/UL 60950 glass breakage specifications
Input flexibility from finger or stylus, such as pencil, credit card, finger nail, or similar
Available for display sizes 32", 40", 42", 46" and 47"

Specifications

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System Performance

Input Method	Finger and stylus input
Accuracy	Reported coordinates are within 1.0% of true position (based on viewing area dimensions)
Resolution	16k x 16k (maximum resolution)
Response Time	20 ms for tap input
Minimum Touch Impact	50 mNs (milli-newton seconds), the equivalent of a very light touch

Optics

Light Transmission	92% light transmission (±2%)
Surface Finish	Anti-glare etch (standard)

Mechanical

Glass Thickness	2.2 mm (±0.2 mm), glass only
Overall Thickness	4.4 mm (±0.5 mm) Includes glass thickness, tail, electronics components, and mounting material
Substrate Material	Chemically-strengthened glass substrate
Surface Hardness	Mohs pick with a hardness rating of 7 or higher is required to induce a scratch. Scratches will not result in a functional failure
Cleaning	Recommended 50:50 isoproply alcohol and water solution

Reliability

Surface Obstructions	Touch screen operation withstands surface contaminants such as dirt, dust and grime
Operating Temperature	-15°C to +70°C for the touch screen RH: Up to 90% non-condensing
Storage Temperature	-50°C to +85°C RH: Up to 90% non-condensing

Electronics (3M MicroTouch Controller DX))

Communication Protocol	Auto-sensing dual mode (Serial plug and play and/or USB HID)
Nominal Uncased Dimensions	2.66" x 3.75" x 0.45" 67.56 mm x 95.25 mm x 11.43 mm
MTBF	>140k hours per MIL Std. 217F calculation
Regulatory	UL/cUL, FCC-A, CE, VCCI, AS/NZS 3548
Drivers	MicroTouch MT7 for Microsoft® Windows® 2000, XP and VISTA