Touchscreen communication (ToSCom): Electro-Quasistatic body communication during touch sensing
Abstract Touchscreens are a fundamental technology for human society providing the primary gateway for human-machine interaction. Today’s touchscreens can only be used to detect touch and provide the location of the user’s touch input but not to simultaneously communicate digital data during a touch...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2025-03-01
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| Series: | Communications Engineering |
| Online Access: | https://doi.org/10.1038/s44172-025-00380-y |
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| Summary: | Abstract Touchscreens are a fundamental technology for human society providing the primary gateway for human-machine interaction. Today’s touchscreens can only be used to detect touch and provide the location of the user’s touch input but not to simultaneously communicate digital data during a touch event through the touchscreen. If communication through a touchscreen can be enabled, it promises deep societal impact by augmenting the most popular Human-Computer-Interaction interface with new possibilities such as a single application on the same device opening up personalized user-specific account data depending on the person interacting with the application. Leveraging advances in Electro-Quasistatic field based communication in the past decade, we propose and demonstrate Touchscreen Communication (ToSCom), a high-speed (>Mbps) simultaneous communication and touch sensing interface. We develop a low path loss channel across the entire touchscreen surface enabling 3 Mbps data rate communication with an average bit-error-rate of less than 5 × 10−7 through the touchscreen surface simultaneously during touch sensing. ToSCom enables a wide range of possibilities in day-to-day life like in wearable devices like transactions in a Point-of-Sale system, audio/image file transfer, and viewing personalized data in touchscreen kiosks. |
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| ISSN: | 2731-3395 |