Underwater touchscreen system
OwnerWilliam R. Annaconeinventor
Life of this patent
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OwnerWilliam R. Annaconeinventor
Estimating the term…
A fluidic capacitive barrier includes at least one resiliently flexible clear membrane that holds a film or thin layer of clear liquid adjacent to a capacitive touchscreen display. The clear liquid has a dielectric constant that is much less than that of water, so the liquid layer provides a capacitive barrier between the touchscreen and a surrounding body of water. Pressing a finger against the flexible membrane locally displaces some of the liquid layer, which allows the touchscreen to sense the manual touch. Thus, the fluidic capacitive barrier makes the touchscreen functional underwater. In some examples, the clear liquid is mineral oil, and the membrane is made of thermoplastic polyurethane. In some examples, the fluidic capacitive barrier is part of a hermetically sealed enclosure in which a touchscreen device can be removably installed for underwater use. In other examples, the fluidic capacitive barrier is part of a touchscreen device itself.
A touchscreen system for underwater operation of a digital device that includes a touchscreen display, the touchscreen system comprising:
A touchscreen system comprising:
A touchscreen system comprising:
Dependencies are inferred from the claim text.