Infrared or Projection Capacitive: Which technology to choose?

When it comes to choosing a sensor technology for interactive equipment such as tables, panels or interactive kiosks, customers often hesitate between the two most popular options — infrared (IR) and projection-capacitive (PCAP). Each of them has its pros and cons, so today we will try to set the record straight and help you make the right choice.

Infrared technology: simple and reliable

Infrared technology is a classic among interactive solutions. It works on the principle of interrupting a grid of infrared rays located along the screen. In short: when you touch the screen, the system detects where you touched it.

Advantages of infrared technology:

• Cost. It is one of the most affordable technologies on the market, making it ideal for budget projects.
• Durability and stability. IR panels can withstand mechanical stress, scratches and impacts, which is important for places with a high flow of people.
• Work with gloves and any objects. The sensor responds not only to the finger, but also to any other objects, which is very convenient for presentations or interactive stands.

Disadvantages:

• Lower accuracy. IR systems are inferior to projection-capacitive systems in terms of positioning accuracy, especially with small details and multi-touch.
• Susceptibility to clogging. Dust or other small objects can interfere with the beams, creating false touches.

Projection capacitive technology: state-of-the-art precision

Projection-capacitive technology (PCAP) is a standard on modern smartphones and tablets, and is increasingly being used in premium interactive equipment. The sensor detects touch by changing the electrostatic field generated on the screen surface.

Advantages of projection-capacitive technology:

• High accuracy and response speed. Ideal for working with interactive content, small objects and multi-touch.
• Elegant design. PCAP sensors are integrated into bezel-less devices for a sleek and modern look.
• Protection against dust and moisture. Ideal for use in demanding environments such as outdoors, restaurants or high-traffic public areas.

Disadvantages:

• Higher cost. PCAP technology is more expensive due to its more complex design and high accuracy.
• Selectivity in the way of interaction. Interaction is possible only with a finger or a special stylus. The standard PCAP panel will not work with gloves (unless they are special sensors with increased sensitivity).

What to choose?

So, which is better – IR or PCAP? It all depends on your specific task and budget.

• Infrared technology is a great option if you need affordable, reliable solutions for public spaces, exhibitions or museums where reliability and unpretentiousness in the way you interact is important.
• Projection-capacitive technology is the best choice if the key criteria are accuracy, aesthetics, and a high level of interactivity, and the budget allows for more premium solutions.

In the companyElpix we use both technologies to create the perfect solution for your needs. We are always happy to help you make the right choice and implement interactive solutions that best suit your needs.