3M MicroTouch™ DST Touch System
Large touch screens for digital signage
3M MicroTouch DST touch systems offer a chemically-strengthened glass, stylus-independent touch solution with fast-accurate-repeatable response and operation unaffected by contaminants, static objects or other touches on the screen.
DST is ideal for large-format LCD displays used for interactive digital signage and point-of-information applications.
3M Dispersive Signal Technology (DST) is poised to become the touch technology standard for large-format interactive displays. Traditional touch technologies detect "touch"
by interrupting acoustic waves, optical fields or infrared light above the surface of the touch screen. What’s different about MicroTouch DST is that it precisely calculates touch locations by analyzing the bending waves within the glass substrate that
are created by the user’s touch. This allows for fast, accurate, reliable touch performance that is unaffected by contaminants, scratches, or static objects on the screen, as well as enabling stylus support and multi-user capability.
- Fast, accurate, repeatable touch
- Touch unaffected by surface contaminants, static objects or other touches on the screen
- Excellent light transmission
- Operation unaffected by surface scratches
- Chemically-strengthened glass with anti-glare surface etch
- Input flexibility from finger or stylus
- Available for 32", 40", 42" and 46" display sizes
Perfomance
- Input Method: Finger and stylus input
- Accuracy: Reported coordinates are within 1.0% of true position (based on viewing area dimensions)
- Touch System Resolution: 16k x 16k (maximum resolution)
- Response Time: 20 ms for tap input
- Minimum Touch Impact*: 50 mN∙s (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: Standard, non-abrasive glass cleaners acceptable
Functional 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. Relative Humidity: Up to 90% non-condensing
- Storage Temperature***: -50° C to +85° C. Relative Humidity: Up to 90% non-condensing
- System Warranty: 3-year limited warranty
Electronics(Controller)
- Communications 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
* Tested at 73 dBA under pink noise, ambient condition
** Test uses BYK Gardner Haze Gard Plus
*** See MicroTouch DST Delivery Specifications for storage and operating temperatures at varying humidity
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