Second, adding extra glass seems to be the problem.

That’s quite important in terms of several parameters, like signal-to-noise ratio (SNR), which will be explained later. Industrial grade will perform better and allow you more control over parameters like SNR.įirst, what is the display you ordered? In the above mentioned example the display is equipped with a consumer grade touch screen controller. TAKEAWAY #2: When you choose your touch screen controller for demanding applications – always prefer industrial over consumer grade. Avoid changes in design (like adding extra cover glass based only on datasheet) without having them thoroughly tested before production. TAKEAWAY #1: To make precise tuning to a touch screen controller you need to do it during an early R&D stage. Here are the two major takeaways, but please read on to clarify them: In this article, we’ll show you what was the root of the problem and how you could have avoided it. You may still wonder, how can you make it work right. And you put a sign on the coffee machine, saying: Finally, your solution is to press the screen really hard.

But by doing so you end up with other issues, like ghost touch effect. To make it work you try tuning the controller – by increasing the sensitivity and changing the threshold. The device is not working properly, because the display is not responding to touch. Let’s imagine you have a touch screen on your new product – a coffee machine. Don’t press too hard – introduction to the problem

How to get touch screen