Operation and Applications of Infrared Touchscreens

An infrared touchscreen functions by detecting an invisible grid of infrared rays that is interrupted. LEDs and phototransistors are placed around the edge of the screen to create this grid. When a finger or object touches the screen, a beam is blocked, allowing the X and Y coordinates of the touch to be determined precisely. This technology is very robust and reliable, as the touch functionality is located in the edge and not on the glass itself, making it ideal for demanding environments.

Industrial HMI Panels

Industrial HMI Panels

In industrial environments, operation with gloves is often necessary. Infrared touchscreens are ideal for this purpose because they respond to any object that interrupts the light beams. Their robust and durable design also makes them resistant to the harsh conditions that can prevail in factories and production sites, ensuring reliable Human-Machine Interaction (HMI).

Public Kiosks & Ticketing

Vandal resistance is crucial for publicly accessible systems such as information kiosks, ticket machines, and ATMs. Because the glass does not contain any electronic components, very strong, tempered glass can be used. This makes the screens ideal for intensive use in unattended locations, both indoors and outdoors.

Education & Presentations

The technology is easily scalable to large formats, making it perfect for interactive whiteboards and large presentation screens in classrooms and meeting rooms. Multi-touch support enables collaborative working, allowing multiple users to operate the screen simultaneously for an interactive learning or working experience.

Medical Equipment

In the medical sector, it is essential that equipment can be operated while wearing gloves. Infrared touchscreens offer this flexibility. In addition, the excellent optical clarity, due to the absence of layers on the glass, is a major advantage for the clear display of crucial medical data and images.

Exceptional Durability

Because the touch sensors are integrated into the edge, the screen surface itself is passive. This makes it possible to use extremely scratch-resistant and vandal-proof glass. This significantly extends the screen's service life, even with intensive or rough use in public or industrial settings.

Flexible Input Methods

A touch is registered by the interruption of a light beam. This means that the screen not only works with a bare finger, but also with gloves, a stylus, or any other opaque object. This offers maximum flexibility in a wide range of usage situations, unlike technologies such as PCAP.

Superior Optical Brightness

No conductive layers or films are applied to the glass that could affect image quality. This allows the technology to offer maximum light transmission, resulting in an exceptionally clear, sharp, and color-accurate image. This is particularly important for applications where visual quality is a priority.

Multi-Touch & Scalability

Modern infrared touch systems easily support multiple simultaneous touch points, which is essential for today's applications. The technology can also be scaled up relatively easily and cost-effectively to very large formats, from displays to complete video walls, without compromising performance.

Summary

An infrared touchscreen functions by detecting an invisible grid of infrared rays that is interrupted. LEDs and phototransistors are placed around the edge of the screen to create this grid. When a finger or object touches the screen, a beam is blocked, allowing the X and Y coordinates of the touch to be determined precisely. This technology is very robust and reliable, as the touch functionality is located in the edge and not on the glass itself, making it ideal for demanding environments.

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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