Water rejection is a feature of projected capacitive (PCAP) touch panels that prevents false inputs caused by water, moisture, or liquid droplets on the screen surface. Since water is conductive, it can interfere with the electrostatic field, leading to ghost touches. Water rejection technology uses signal processing algorithms and sensitivity calibration to distinguish real touches (from a finger or stylus) from liquid interference. This capability is crucial in outdoor, industrial, medical, marine, and food-related applications where touchscreens must function reliably in wet or humid environments.
Water Rejection
Water rejection lets a PCAP touch panel ignore water drops and moisture on the glass, so only real finger or stylus touches are registered.
Also known as: water resistance touch, wet touch, water tolerance
Unisystem
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