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Purchase Products
+ Analog Devices
+ Acromag
+ C4AV
+ Cognex
+ Elo TouchSystems
+ Honeywell
+ Kionix
+ Lippert Embedded
+ MontaVista
+ Motorola
+ Planar Touchscreens
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Selecting the Correct Touchscreen Monitor

There are many benefits in choosing touch technology. Touch technology provides a fast and intuitive interface for the user. Touchscreens simplify customer interactions. Users do not have to know how to use a computer, but simply touch the monitor to make their choices. No keyboard is required, saving valuable space. Visit the Touch Product Selector to choose the Planar touchscreen monitor which best suits your needs.

Planar offers two touch technologies: capacitive and resistive. Both have advantages and disadvantages. The table below can help you choose the best touchscreen monitor for your application.

SAW How it Works
Advantages
  • Durable glass construction
  • High optical clarity
  • Activated by a finger, gloved hand, or soft tip stylus
Disadvantages
  • Moving liquids or condensation can cause false touches
  • Solid contaminants create non-touch areas until removed
  • Doesn't support drag or draw effectively
 

Resistive

How it Works
Advantages
  • Cost-effective solution
  • Activated by any stylus
  • Very accurate
  • Low power requirements
  • Liquids won't affect touchscreen performance
Disadvantages
  • Polyester surface can be damaged
  • Lower endurance (35 million touches)

 
Capacitive How it Works
Advantages
  • Scratch resistant, durable surface
  • High endurance (225 million touches)
  • Very accurate
  • Good optical clarity (88+% transmissivity)
  • Liquids won't affect touchscreen performance
Disadvantage
  • Does not work with gloved fingers or stylus
Application
Planar recommends:
People with gloved hands need to interact with the touchscreen monitor. Resistive or SAW
I need a cost-effective monitor for my employees to use. Resistive
The touchscreen needs to be accurate. Resistive, SAW,Capacitive
I need a monitor that will tolerate liquids on the screen. Resistive or Capacitive
I need to install a monitor in an unattended environment. SAW or Capacitive
I need the touchscreen monitor to be as bright as possible. SAW or Capacitive
I need a monitor that will be durable and scratch resistant. SAW or Capacitive
I need a monitor that will withstand high levels of impact. SAW or Capacitive
I need a monitor that will work even with contaminants on the screen. Capacitive
Technology Comparison
There is no perfect touchscreen technology that will meet every application requirement and choosing the right technology can be difficult. In addition to resistive and capacitive there are several other touch technologies which are available. Below is a list of the common touch technologies along with a comparison of the various features.
Touch Technology
Transmissivity
Input
Durability
Contaminants
Resistive (3M) 82%-85% Stylus Independent Average Unaffected
Capacitive (3M) 88%+ Human touch High Unaffected
SAW 90%+ Human touch or
conductive stylus
High Liquids and contaminants may affect touchscreen functionality
Infrared 90%+ Stylus Independent High LED receivers must be kept clean
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