Palm Rejection (SKIN)
Overview
Palm Rejection (DISPLAX SKIN) allows the Touch Sensor to ignore large-area contacts—such as palms, hands, or arms—while still detecting finger touches.
This prevents accidental or unintended touches during typical interaction with the screen.
⚠️ *Note: This feature is not available for Skin Dualtouch.
How It Works
Palm Rejection or Massive Clearance uses the size of the detected touch area (the contact patch) to differentiate between:
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Valid touches: fingertips
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Ignored inputs: palms, hands, arms, sleeves, water puddles
Since touch-cell density differs by sensor size, the required value changes according to the sensor’s dimensions.
Recommended Palm Settings for DISPLAX SKIN
Use the table below to configure Palm Rejection to reliably ignore an adult hand:
| Touch Sensor Size | Suggested Palm Value |
|---|---|
| 30″ – 41″ | 8 |
| 42″ – 49″ | 7 |
| 50″ – 64″ | 6 |
| 65″ – 75″ | 5 |
| >75″ | 4 |
💡 Tip: Smaller sensors need higher Palm values because a hand covers more active cells.
Larger sensors need lower Palm values.
Visual Examples
Palm Rejection OFF
A full hand on the screen is recognised as multiple touchpoints.
Palm Rejection ON – Incorrect Setting
Palm Rejection is enabled, but the touch area threshold is too low.
Some touches are still detected → increase the Palm value.
Palm Rejection ON – Correct Setting
The palm or hand contour appears on the visualisation, but no touchpoints are reported.
Arm Rejection - Incorrect Setting
An arm placed on the sensor generates multiple touchpoints.
Arm Rejection - Correct Setting
With correctly configured Palm Rejection, resting an arm on the screen does not trigger touch events.
Additional Notes
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Depending on your DISPLAX product, the visual representation of palm/hand rejection may vary slightly. On Displax Mesh and Skin Zeeto products, it is called Massive Clearance.
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Adjust Palm Rejection after the sensor is fully installed and environmental conditions are stable.
Related Articles
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