Operation of an Infrared Touchscreen

An infrared touchscreen works by detecting interruptions in an invisible grid of infrared rays. Along the edges of the screen are rows of IR LEDs and sensors that create a grid of light rays across the surface. When an object, such as a finger or stylus, touches the screen, the rays are blocked at that location. The sensors detect this interruption and calculate the exact X and Y coordinates of the touch, which are then transmitted to the controller.

Large Interactive Displays

Large Interactive Displays

IR technology is cost-effective and highly scalable, making it ideal for large interactive whiteboards and displays in education and conference rooms. Because no physical pressure is required, it offers smooth operation with a finger, stylus or other object. This facilitates collaboration and large-format interactive presentations.

Kiosks and POS systems

Due to its durability and reliability, infrared technology is well suited for public information kiosks and Point-of-Sale (POS) systems. The screen surface is often a tempered glass, making it highly resistant to scratches, wear and tear and vandalism in high-traffic commercial environments. This ensures a long service life.

Industrial Control Panels

Infrared touchscreens can be operated with gloves, a crucial feature in many industrial environments. Rugged construction and relative immunity to surface contaminants such as dust or liquids ensure reliable operation in demanding production conditions.

Medical Equipment

The technology is suitable for medical applications because the glass surface is completely sealed and easy to disinfect. In addition, operation with surgical gloves is effortless, ensuring hygiene and usability in clinical settings or laboratories.

Excellent Optical Brightness

Because no conductive or sensor layer is required on the glass surface, infrared technology offers very high light transmission. This results in excellent image quality with maximum brightness and color fidelity. Viewing is not affected by an additional layer, ensuring a clear and sharp image.

Flexible Input Method

An IR touchscreen detects any interruption of light rays, allowing it to be operated with bare fingers, gloves, a stylus or virtually any other opaque object. No pressure or electrical guidance is required, making for a very versatile and approachable touch experience.

Durable and Scratch Resistant

The screen surface is usually a layer of pure, often tempered, glass. This makes it extremely durable and highly resistant to scratches and chemicals. This gives the technology a long lifespan, even when used intensively in public or industrial applications.

Multi-touch and Scalability

Infrared technology supports standard multi-touch, often with 10 to 40 simultaneous touch points, enabling complex interactions. In addition, the technology is relatively inexpensive to produce for medium to very large sizes compared to other touch technologies such as PCAP.

Summary

An infrared touchscreen works by detecting interruptions in an invisible grid of infrared rays. Along the edges of the screen are rows of IR LEDs and sensors that create a grid of light rays across the surface. When an object, such as a finger or stylus, touches the screen, the rays are blocked at that location. The sensors detect this interruption and calculate the exact X and Y coordinates of the touch, which are then transmitted to the controller.

Do you have more questions?

At Dytos, we understand that each industry has specific requirements for touch solutions. That's why we offer a wide range of products and services designed to meet these diverse needs. 

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