Touchscreen optimizing


Touch controller adaptation

Modern capacitive touch controllers that work on the PCAP principle essentially have to include important properties for use in the industrial environment, such as EMC immunity, full functionality even under the influence of rainwater and operability with gloves. In order to guarantee optimum functionality, however, appropriate fine tuning of the controller is actually necessary for every application. And it is particularly the combination of different requirements frequently needed in projects that ultimately makes this programming very complex and calls for many years of experience.

In adapting the touch controller to the requirements of the specific application, the Garz & Fricke specialists are able to contribute their entire know-how, as the complete solutions offered are developed in close cooperation with the customer. Accordingly, our developers are familiar with all of the general conditions that may possibly influence the operation of the solution and are able to take account of them in the adaptation.

Up to 200 touch controller parameters can be influenced

These factors may be many and varied - either of a mechanical or electrical nature. Aspects such as a change in the distance between display and frame, the material of the frame, the thickness of the cover glass or electromagnetic interference may therefore also alter how the controller performs. The close project support additionally means that it is still possible to take into account any system changes that may arise even during the course of the project.

Among the parameters which can be influenced, up to 200 are specified by the hardware manufacturer. As a close partner of leading PCAP manufacturers such as EETI or ILITEK (Taiwan), our developers and programmers are ideally trained and extremely familiar with the options that the controllers offer and are able to fully exploit them. And following the theory in each case comes the practical trial: the responsible developer carries out extensive testing on the respective system and then any optimization measures where necessary.