Butler Technologies Touch Screens

In addition to membrane switch, graphic overlay and flex circuit capabilities, Butler Technologies can also provide touch screens built to industry standard sizes. Touch screens (also known as HMI or Operator Interfaces) are normally delivered to customers as passive components - that is, without driver circuitry. Butler Technologies can certainly assist the client by recommending a suitable driver if needed.

Touch screens can also be integrated into the windows of Flex Membrane, PCB Membrane and Rubber Keypad Membrane Switches.

Touch screens and touch switches are available in 4-Wire, 5-Wire and 8-Wire analog resistive technology, utilizing ITO (indium Tin Oxide) top and bottom layers.

The basic touch screen has three main components:

  1. A touch sensor - A clear glass panel with a touch-responsive surface placed over a display screen. Generally, the sensor has an electrical signal flowing through it. Touching the screen causes the signal change. This signal change is used to determine the location of the touch to the screen.
  2. Controller - An intermediary electronic device that translates information from the touch sensor and communicates it to the PC.
  3. Software driver - Software installed on the PC that allows the touch screen and computer to work together.

HMI - Touch Screen Operator Interface Options

4 Wire Resistive Touch Screens
Four-wire resistive touch screens are economical touch screens that include industrial-grade personal computers, portable electronic devices, consumer components and remote controls.

5 Wire Resistive Touch Screens
Five-wire resistive touch screens are very durable touch screens that are used in casino gaming machines, point-of-sale (POS) touch screen systems, voting units and financial equipment.

8 Wire Resistive Touch Screens
Eight-wire resistive touch screens are extremely accurate; touch screen operator interfaces featuring 8-wire construction are found in factory automation equipment, harsh-environment systems and instrumentation systems.

Butler Technologies will assist you with the selection of the right type of touch screen to meet your specifications. Contact us to request a quote for touch screens and user interface products.