Zytouch sensor integrated into outdoor signage

Taking advantage of the ultra-large form-factor capability of PCT, 2S2 has launched a range of touch displays in landscape and portrait configurations, covering 42in (106.7cm), 46in (116.8cm), 47in (119.4cm), 55in (139.7cm) and 65in (165.1cm) display formats.

Each OHDC-EDSXXX utilises a high-brightness LCD with 1,000:1 contrast ratio, making the resulting ruggedised digital signage unit capable of deployment in such high-use public environments as hotel lobbies, sports stadia, shopping malls, company reception areas and theme parks.

They have been designed to handle extremes of heat and cold, with an operating temperature range from -20 to 50C as standard and extended versions from -40 to 60C.

With an all-glass front, PCT can be readily sealed and is already proven in outdoor applications.

The touch displays are housed in an IP 65-rated all-weather enclosure, ensuring reliable performance in extremes of weather.

The touch technology enabled 2S2 to implement an edge-to-edge glass design that could be cleaned easily, facilitated water run-off and was visually appealing.

At the core of Zytronic's proprietary PCT touch sensing mechanism is a matrix of micro-fine copper capacitors that measure 10um in diameter.

These are embedded into a tough laminated glass substrate, even capable of being mounted behind and operating through a protective glass or acrylic overlay for high levels of durability and rendering the screen virtually impervious to the type of wear and tear that would cripple the long-term operation of alternative touch-sensing technologies, such as resistive or surface-capacitive screens.

As in the case of 2S2's design, PCT sensors can be integrated into displays without the bezel structure around the active area that is needed with infrared (IR) and surface acoustic wave (SAW)-based touchscreens.

This allows for flat-fronted designs to be created that are both practical and attractive.

As an additional benefit, with its active sensing elements embedded on the rear side of a screen, PCT does not require time-consuming and costly sensor recalibration maintenance to be carried out.