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Touch and firmware

There are a number of touchscreen technologies available and choosing the right one depends on your application, environment and intended user experience. All our touchscreen displays can be customised to your application including firmware tuning for specific requirements.

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An industrial touchscreen as good as your tablet

Advances in touchscreen technology mean that you can have a world of information and services at the touch of your finger. Customers quite rightly want an industrial touchscreen as good as a smartphone or tablet.

A touchscreen is made up of 3 basic elements, a sensor, a controller and a software driver. There are various types of touchscreen technology, all with their own benefits and limitations. All touchscreen firmware can be optimised to meet the challenges of even the most challenging environments.

What is Projected Capacitive Touch?

Projected Capacitive touchscreens (or PCAP touch) are coated with a transparent conductive film (such as ITO), which when touched by an object, usually the skin on your fingertip, can sense the conductive properties of that object.

Capacitive touchscreens can detect multiple points of contacts and can also be operated while wearing certain types of gloves. They are more responsive than a resistive screen when it comes to gestures such as swiping and pinching.

What is Resistive Touch?

A Resistive touch screen consists of a flexible film upper layer and a rigid lower layer which when pressed join the layers together to complete the circuit and register a touch.

Resistive touchscreens are lower cost that capacitive touch screen but have just single-point input. Ideal for kiosk applications.

What is Optical Positioning Touch?

Using optical sensors at the top of the screen to recognise touch, this optical position technology relies on infra-red LEDs placed on the remaining 3 sides of the display

The light emitted from the LED is reflected back to the imaging sensors and when the light beam is broken by a touch, a shadow is cast and therefore registers a touch.


Touch IC selection & firmware tuning

Choosing the right touch controller IC is the first step to ensure an optimal touch performance for your LCD display. The touch controller IC is infact that circuit which processes the input signals and there are various grades available on the market.

We can help you select the best option, depending on your chosen display size and touch points requirements, including the latest industrial grade touch ICs supporting gloves input and anti-noise capability.

In addition, the firmware of the selected controller IC can be adjusted from our firmware engineers to ensure the touchscreen delivers the best performance for its intended application, including the following requirements:

  • Specific cover lens materials and thicknesses
  • Gloved finger inputs of various material types
  • Rejecting false touches caused by water droplets
  • Improved immunity to EMI through software filtering
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How to integrate a PCAP touch? | Read our Whitepaper!

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We aim to offer reliable and long-term solutions to our B2B customers. If you are a business and would like to discuss your display and/or embedded system requirements please contact us below