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and may be deployed in public environments. the glass can have a standard surface or an anti-glare etched finish if appropriate for the specific application. This curved touch sensor offering is based on a proven manufacturing process which has been used by Zytronic for over a decade. Available in customised sizes from 19 inch to over 46 inch diagonals (with a maximum size of 1800x1000mm possible), this large format, curved surface product can support single-, dual- or multi-touch con- figuration and is suitable for use with rear projection systems, curved LCDs, or OLED displays. This technology will mean that HMI designs can finally move outsidea single plane. It will result in the development of advanced touch surfaces with a more organic feel and allowing more intuitive manipulation for a broad range of applications. Efficient POWER terephthalate polymer film containing SOLUTIONS Fig. 3: A flexible polyethylene one of Zytronic’s PCT-based embedded sensor wire matrices is from the wall to the point of load TM laminated onto curved glass and trimmed to size. this temperature are dependent on the thickness of the glass being used. the radius of the curve can be specified by the customer and the touch surface can be made with a convex or concave form, with a radius down to approxi- mately 75mm depending on the glass’ dimensions. 10W~468 W after cooling, cleaning and inspec- tion the glass is transported into a class Digital Power Modules 1000 cleanroom manufacturing area. Intermediate Bus l Point of Load Here a flexible polyethylene terephthal- ate (PET) polymer film containing one of Zytronic’s pCt-based embedded sensor wire matrices is laminated onto 0.25 W~600 W the curved glass to add the touch functionality – see figure 3. The sensor Dc-Dc Converters can be either laminated to the inner or outer surface of the glass, depend- Board Mount l Chassis Mount ing on whether a concave or convex configuration is desired). The final step is the thermal modeling of flexible PCB tails to the exit wires, for attachment to remotely mounted control electronics. 1W~2400 W the critical advantage of the 10 µm Ac-Dc Power Supplies copper wires that make up each pCt Open Frame l Chassis Mount l External matrix in these curved screens is their inherent flexibility. They are not prone to breaking, but can be bent easily. Furthermore the laminated construction aids safety in the event of breakage, with chemical strengthening of glass With a continuous focus oneffi ciency, density, andsystem optimization, also possible if required. we keep our customers on theleading-edge of the power curve. the sensitivity of the sensor matrix is not affected by the curved glass. Glass 10mm thick can be used without impinging on the overall touch perfor- mance, meaning that the completed curved touchscreens are highly robust www.cui.com/power www.electronics-eetimes.com Electronic Engineering Times Europe December 2012 23


EETE DECEMBER 2012
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