Best Practices for Capacitive Touchscreen

24 Oct 2022

This article explains some of the best practices for using Juniper Systems’ capacitive touchscreen.

Cold or Wet Conditions

A capacitive touchscreen can distinguish the conductivity of small water droplets from a fingertip or a charged stylus, but it becomes more difficult as more water accumulates on the display. This is particularly true in a saline environment (such as a coastal region with salt fog and sea spray) or when the water has a high concentration of dissolved conductive substances (such as metals in mine runoff).

To help with this,

If you are having additional problems using the touchscreen, see Touchscreen Troubleshooting.

Touchscreen Profile

Depending on the user-selected touchscreen profile, the screen uses the conductive properties of an object and the number of active touchpoints on the screen to make decisions. The Touchscreen Profile application tells the touchscreen to look for specific inputs and ignore environmental distractions.

To access the touchscreen profile for a certain device, follow the instructions in the corresponding User's Manual:

You can select one of the following profiles as necessary.

*This option is not available on the Mesa Pro.

**This option is only available on the Mesa Pro.

Using Gloves with the Capacitive Touchscreen

Capacitive touchscreens work best with bare fingers, as fingers are generally more conductive than a stylus or gloves. We provide several touch profiles to adjust the screen sensitivity for use with a capacitive stylus or gloves. In most cases, modified or special conductive gloves generally work better than regular gloves. Some examples of these gloves are listed below.

Using a Stylus with Capacitive Touchscreen

With capacitive touchscreens, a wide-tip stylus is better than a fine-point tip stylus. A wide-tip stylus allows more contact points on the touchscreen to be activated at once, giving a better average of where exactly the tap should be located on the screen. Some fine-tip active (battery operated) styli try to compensate for this by supplying their own charge, but this does not always work.

Because some applications include small buttons and crowded UI (user interface) elements, there are ways to zoom or make the buttons larger to allow for the use of a wide-tip stylus.

Mesa 2 and Mesa 3 Windows

  1. Select Start > Settings > System Display.

  2. Scroll down and select Advanced display settings.

  3. Select Advanced sizing of text and other items.

  4. Select Set a custom scaling level.

  5. In the drop-down box, select or enter a value of 150 or 200 percent.

  6. Select OK and Apply. 

You might need to sign out to apply the new display scaling settings.

  1. Select Sign out now and then sign in to the same user account. The new custom display scaling should be applied.

Archer 2 and Allegro 2

The Archer and Allegro have a hold-to-zoom feature to compensate when needed as demonstrated in the video below.

  1. Verify a programmable button is assigned to the hold-to-zoom feature (P1 by default). If a button has not been assigned, go to Settings > Personal > Buttons and assign a button to hold-to-zoom.

  2. Hold the assigned button.

  3. Tap on the screen. The screen will zoom in where you tapped.

  4. Let go of the assigned button to zoom out.

Alternative Stylus Options

Some recommended alternative stylus options are listed below.

Troubleshoot Small Touchscreen Issues

For more information, see Touchscreen Troubleshooting.

Related Information

Troubleshooting Touchscreen on Mesa 3 Windows

Rain or shine, the Touchscreen Profiles app keeps rugged mobile computer and tablet displays ultra-responsive

What you need to know about screen protectors on rugged mobile computers, tablets