Touch Screens can be integrated into information systems.

Press Release Summary:

Available for range of sizes and systems such as cell phones and industrial displays, Digital Waveguide Touch (DWT) products are based on interruption of invisible light beams, and provide multiple touch ability, detection and position accuracy, screen clarity, and display brightness. Polymer optical waveguide, key component in DWT products, features low-power semiconductor light source that distributes infrared light via various light channels (waveguides) to bezel of flat panel display.

Original Press Release:

RPO Introduces Digital Waveguide Touch(TM) Technology at SID Display Week '07

CANBERRA, Australia, May 17 - RPO, Inc., announced today the availability of its Digital Waveguide Touch (DWT) products for integration into a wide range of information systems. The company's DWT technology provides many advantages over current touch technologies and is available for a wide-range of sizes and systems such as cell phones, PDAs, tablets, industrial displays and more. RPO will demonstrate systems utilizing DWT during the SID Display Week exhibition at booth #2027 at the Long Beach Convention Center in Long Beach, Calif. from May 22-24, 2007.

RPO's polymer optical waveguide is the key component in RPO's new DWT touch screen products. It features a low-power semiconductor light source, which distributes infra-red light via a number of light channels (waveguides) to the bezel of a flat panel display. The light is then projected through free space and illuminates reciprocal waveguides behind the opposing bezel. Any interruption of the light beam is instantaneously detected by a light sensor camera.

DWT is based on the interruption of invisible light beams and needs no touch panel overlay. This gives key benefits over other touch screen technologies, including improved screen clarity, higher display brightness and extended battery life. DWT solves these issues and provides multiple touch capability, excellent accuracy in detection and position, all at a very cost-effective price point.

The unique chemical composition of the polymer allows RPO to process waveguides in a newly-developed, proprietary fabrication process. This process leverages manufacturing techniques developed for the LCD and the telecommunications industries. RPO is also developing partnerships with several high volume manufacturing organizations in order to ensure supply of its technology.

"In our conversations with 24 players in recent months, customers were excited by the opportunity of a high-performance, high-resolution touch interface that allows for double touch and stylus or finger operation. Across eight different segments, the view was unanimous that DWT offers an exciting alternative for new and existing product improvements," noted Ian Hendy, principal of Hendy Consulting.

"Our cost effective touch solution is elegant, compared to other touch technologies. Using waveguides is new to this industry, and it is a truly 'digital' solution from finger to detector," noted Malcolm J. Thompson, chief executive officer of RPO. "Integrators of systems simplified by touch entry (versus keypad entry) have struggled with finding the ideal touch technology for today's slimline electronics products. We believe we have the answer."

About RPO

RPO, Incorporated is a privately-held firm based in Canberra, Australia, and incorporated in Delaware. The firm has developed Digital Waveguide Technology and holds all key patents on the products and process. More information can be found at

Media interested in seeing RPO's Digital Waveguide technology firsthand during SID, should contact Stacey Voorhees via e-mail at or 650-968-8900.

Source: RPO, Incorporated

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