Research in Motion has filed for a patent for a touchscreen that combines the technology behind resistive and capacitive touchscreen displays. The scren would use a dual layer resistive panel, but the ...

Fig 1. Rohm’s BU21023/BU21024 series allows multi-touch detection in resistive touchscreens. Fig 2. David Lussey, Peratech’s CTO, demonstrates the transparency of the company’s QTC Clear material.

Touch screens with resistive technology have been in common use for many years. They are inexpensive to manufacture and easy to interface. In resistive-technology sensing, electrodes are connected to ...