Touch means freedom! There is nothing as intuitive as a touch. Touchscreens provide a “language free” interaction between people and machines or apparatus and the smart phone had a great influence on that. More and more solutions are making the transformation from a one direction transmitter to a dual direction data transfer tool, for example wearables.

Especially our customers with international trade backgrounds can appreciate the simple interactivity of the combination of display and touch.

 

When mentioning touch, DISvue focuses on 2 major technologies namely Resistive and (Projected) Capacitive.

Resistive is the technology where a transparent front foil is pressed down to the below carrier thus resulting in a lower resistance value on that spot. There are 3 types that are widely in use namely:

  • Resistive 4-wire

Mainly used in combination with lower cost and smaller size displays.

  • Resistive 5-wire

Mainly used in industrial applications (due to higher reliability) and larger type of screens.

  • Resistive 8-wire

The most stable and reliable type, but also more expensive and less suppliers support this technology than the other two mentioned above.

 

Capacitive comes in 2 versions, the standard surface capacitive and the increasing more popular version named projected capacitive (often abbreviated as PCAP or PCT). Since PCAP is the more versatile technology we focus on this one. Below some highlights:

  • Touch controller may be integrated in the tail (COF type);
  • Durable and drift free;
  • High transparency;
  • Can be used behind a front glass;
  • Available in small and very large sizes (over 100 inch).

In most cases PCAP touch is still more expensive than standard R4W, but the high demand is still bringing the cost down.