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Transparent Gesture Sensing film with fast, sensitive and high responsivity Graphene-Pyroelectric Materials

Technology Overview

We have developed a transparent, stretchable film that acts as a motion (infrared) sensor, based on Graphene-Pyroelectric Materials. This film is a heat sensor, which is capable of tracking near-field human gestures, in turn allowing control over smartphones, computers & other display-based (wearables etc.) devices. The film s transparency allows it to be pasted over any display based device, transforming the device into one that is compatible with gesture-based interactions. Due to the unique properties of graphene, the developed sensor is fast, sensitive and has higher responsivity compared to the conventional pyroelectric IR sensors. Furthermore, the film is more power-efficient than comparable gesture sensing technologies which are based on cameras, as it generates its own power in response to human radiation. The flexible, transparent graphene-pyroelectric gesture sensing film is a first-of-its-kind technology, with no comparable solution developed to date. The group is now working towards viable use cases for the technology, to highlight its full potential.

Technology Features & Specifications

This technology consists of a transparent, stretchable film that acts as a motion (infrared) sensor, based on Graphene-Pyroelectric Materials. This film is a heat sensor, which is capable of tracking near-field human gestures, in turn allowing control over smartphones, computers & other display-based (wearables etc.) devices. Due to the unique properties of graphene, the developed sensor is 7X faster, more sensitive and has higher responsivity compared to the conventional pyroelectric IR sensors.

Potential Applications

This invention is a transparent, stretchable film that acts as a motion (infrared) sensor, based on Graphene-Pyroelectric Materials. This technology is applicable in the following industries:

  1. Near-field human motion sensing interface for smartphones, computers, wearables and other display-based devices or 
  2. Security & surveillance eg. Discrete night vision, motion detection.

Customer Benefits

  • Transparent, flexible film that allows gesture sensing and is compatible with any display-based device.
  • Large-area, near-field sensing compatible: no need for multiple cameras, triangulation etc.
  • Lower power consumption and greater energy efficiency compared to all other gesture sensing technologies.
  • Higher sensitivity and faster response time (up to 7X faster) compared to conventional pyroelectric controller due to the unique properties of graphene electrodes. 

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