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Breakthrough in touch screen technology

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3M Touch Systems has launched its break-through touch screen technology - Dispersive Signal Technology (DST).

US based Richardson Electronics’ Pixelink Division will offer an integrated NEC MultiSyncLCD 4010 40-inch TFT touch screen monitor solution incorporating the 3M MicroTouch DST Touch Screen and Controller. This preliminary release is now available for sale and shipment from Pixelink Corporation.

The 40” MicroTouch DST touch screen is the first in a planned product range of large format (over 30”) touch screens.

Key applications for this technology include conference rooms, education, financial exchange, retail signage and billboard, transportation, and other varied indoor venues such as casino hospitality, trade shows, clubs and restaurants.

Market projections from iSuppli, a leading source of display market data, estimate the total non-consumer, large screen LCD and plasma display market to grow to US$4.79 billion by 2009, with the markets listed above comprising US$4.66 billion of the total. “Dispersive Signal Technology is a unique touch technology due to its feature set and scalability to fit large display sizes”, said Business Manager, 3M Touch Systems, Larry Loerch.

“We look forward to leveraging key integrator, ISV and display manufacturer relationships to capture a portion of the burgeoning demand for large format, interactive displays.”

Dispersive Signal Technology represents a fundamentally different approach to touch. Unlike other solutions that recognise touch by the interruption of electrical fields, acoustic waves, optical fields, or infrared light, Dispersive Signal Technology recognises touch by interpreting bending waves created in the overlay substrate via the impact of a touch.

This approach helps eliminate performance issues associated with on-screen contaminants and surface scratches, while offering enhanced palm rejection. All of these features represent key functional advantages in the target application segments.

Future commercialised implementations of MicroTouch DST touch screens will result from 3M’s work with both Richardson’s Pixelink Division and other specialised display integrators.

Combined with the proven performance of high quality displays, the result is a high-performance, seamlessly integrated touch display capable of being effectively deployed into the major, non-consumer large-format display growth segments.

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