You Put a Touch Screen WHERE?
7 Tough Places Touch Screens MUST Work
Your phone has it pretty easy. It spends most of its life in a pocket, purse, car or climate-controlled building. It probably isn't being sprayed with water, operated with heavy work gloves, shaken by industrial machinery, blasted by sunlight or expected to work outside in freezing temperatures.
Industrial touch screens aren't always so lucky. Projected capacitive (PCAP) touch screens are now being integrated into equipment and control systems in some surprisingly demanding places. Here are seven environments where simply responding to a finger isn't nearly enough.
1. Inside a Car Wash
Water and touch screens aren't exactly known for being best friends. Yet touch screens can be found throughout modern car wash operations, including outdoor pay stations and equipment control systems. That can mean exposure to water, cleaning chemicals, humidity, direct sunlight, temperature extremes and operators wearing gloves. For a PCAP touch screen, there's another challenge: water on the screen shouldn't suddenly start making decisions. The touch system needs to distinguish between an intentional operator input and water moving across the glass.
Try asking your phone to do that.
2. On Cranes and Heavy Equipment
Put a touch screen on construction or material-handling equipment and its working conditions change dramatically. Now the interface may be surrounded by vibration, dirt, electrical noise and major temperature swings. Operators may be wearing thick work gloves. Outdoor equipment introduces rain, snow and bright sunlight. And unlike checking a text message, an operator interacting with equipment controls needs predictable performance. Industrial touch screens can become part of HMIs that give equipment operators access to controls, operating information, alarms and diagnostics. It's a considerably tougher day at the office.
3. In Food and Beverage Plants
Imagine spending your workday around liquids, oils, cleaning solutions and frequent equipment washdowns. Welcome to food and beverage processing. Touch screens are used in processing, bottling, canning, packaging and other production equipment where cleanliness is essential. Operators may need to interact with the equipment while wearing protective gloves, while the surrounding machinery may routinely encounter splashes and cleaning procedures. This creates an interesting PCAP engineering problem. Water? Don't treat it as a touch. Gloved operator? Recognize the touch. Getting both of those behaviors right at the same time is much harder than it sounds. It is UICO's specialty.
4. At a Gas Pump in a Chicago Winter
Outdoor touch screens don't get to call in sick because it's January. Gas pumps, kiosks, EV charging stations and other outdoor equipment can face freezing temperatures, summer heat, rain, snow and direct sunlight. The display still needs to be readable. The touch interface still needs to respond. And the person standing outside would probably prefer not to remove a winter glove just to operate it. For outdoor equipment manufacturers, capabilities such as wide operating temperatures, sunlight readability, optical bonding, water rejection and glove operation can become important design considerations rather than optional extras.
5. On a Boat
Saltwater. Rain. Sun. Wet hands. Gloves. A marine touch screen can have a rather unpleasant work environment. Navigation, fish-finding, entertainment and other marine systems increasingly rely on touch interfaces. But a marine PCAP system has to perform under conditions very different from those surrounding a consumer tablet. The engineering challenge isn't simply keeping moisture away from the electronics. The touch system also has to interpret what's happening on the surface correctly. A splash shouldn't become an instruction. A wet finger should.
6. Next to Motors, Medical and Industrial Machinery
Sometimes the thing giving a touch screen trouble is completely invisible. Motors, variable frequency drives (VFDs), inverters, welders and other industrial electrical equipment can create electromagnetic interference and electrical noise. For a projected capacitive touch system, that matters. Without proper integration and tuning, electrical noise can contribute to erratic touch behavior, false inputs or missed touches. That's why industrial PCAP performance isn't determined by the glass alone. Touch controller design, firmware, grounding, filtering and system integration can all play a role. Sometimes the toughest enemy in the room is the one you can't see.
That's why for critical care in Medical facilities, UICO is chosen for precise performance.
7. Anywhere You Wouldn't Put Your Phone
Factories. Construction equipment. Medical Carts and Operating Rooms, Military vehicles. Outdoor kiosks. Transportation systems. Machine vision equipment. Oil and gas operations. Test equipment. Touch screens have traveled a very long way from phones, tablets and office displays. And that changes the engineering question.
With consumer electronics, we tend to ask: How good does the touch screen feel?
For industrial equipment, OEM engineers may need to ask:
Will it still work when everything around it is trying to make it fail?
That's where rugged projected capacitive technology gets interesting. UICO engineers PCAP touch screen solutions for demanding industrial and outdoor applications, including water rejection, operation through heavy gloves, electrical noise immunity, optical bonding, sunlight readability and wide operating temperature ranges. Because sometimes the most impressive feature of a touch screen is simply this: It keeps working. That's why it is also used in critical Medical situations.
outdoor touch screens medical touch display panel mount outdoor touch screen
Frequently Asked Questions
Can projected capacitive touch screens work in rain or around water?
Yes. PCAP touch systems can be engineered and tuned to reject false touches caused by water while continuing to recognize intentional user input. This is especially important in outdoor, marine, car wash and food-processing applications. Medical applications must be able to withstand gels, liquids, and gloves as well.
Can an industrial PCAP touch screen work with gloves?
Yes. Industrial PCAP systems can be designed for glove operation. UICO touch solutions can support operation through gloves up to 5 mm thick, depending on the application and system configuration.
What makes an industrial touch screen different from a consumer touch screen?
Industrial touch screens may need to withstand water, electrical noise, vibration, extreme temperatures, heavy gloves, bright sunlight and long operating lifecycles. The touch sensor, controller, firmware, cover glass and system integration all contribute to reliable performance.
Where are rugged PCAP touch screens used?
Applications include industrial automation, heavy equipment, food and beverage processing, marine electronics, outdoor kiosks, transportation, medical suites and operating rooms, military equipment, machine vision, oil and gas equipment, test systems and other demanding environments.
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