Introduction to Infrared Touch Screens

Infrared touch screens are a type of touch screen technology that uses infrared light to detect finger or stylus inputs on the screen. These touch screens are known for their high accuracy, durability, and resistance to external interference. They are commonly used in applications such as interactive kiosks, digital signage, and industrial control systems.

In this article, we will take a closer look at the technology behind infrared touch screens and the benefits they offer compared to other touch screen technologies.

How Infrared Touch Screens Work

Infrared touch screens use a grid of infrared light-emitting diodes (LEDs) and photo transistors to detect finger or stylus inputs on the screen. The LEDs emit infrared light across the surface of the screen, and when a finger or stylus comes into contact with the screen, it blocks some of the infrared light. This change in infrared light is detected by the photo transistors, which sends a signal to the touch screen controller to register the input.

The touch screen controller then processes this input and sends the information to the computer or device the touch screen is connected to. The computer or device then interprets the input and responds accordingly.

Benefits of Infrared Touch Screens

• High Accuracy: Infrared touch screens have a high accuracy rate, making them ideal for applications that require precision such as drawing or design programs.
• Durability: The use of infrared light means that the touch screen is not affected by external factors such as dust or moisture, making them more durable than other touch screen technologies.
• Interference Resistant: Infrared touch screens are resistant to external interference, making them suitable for use in high-traffic areas or environments with other electronic equipment.
• Cost-effective: Infrared touch screens are relatively inexpensive to produce, making them a cost-effective solution for many applications.

Conclusion

Infrared touch screens are a popular and reliable choice for many applications due to their high accuracy, durability, and resistance to external interference. They are cost-effective and can be found in a variety of settings, including interactive kiosks, digital signage, and industrial control systems. With the rise of touch screen technology, it is likely that we will continue to see infrared touch screens being used in more and more applications in the future.