3D force sensing enables true edge-to-edge mobile displays

February 21, 2018 //By Jean-Pierre Joosting
3D force sensing enables true edge-to-edge mobile displays
The latest technology demonstrator from Peratech shows how Quantum Tunnelling Composite (QTC®) force sensing can accelerate the evolution of mobile phones.

A key aim within mobile handset design is to extend the screen to the very edge of the case, even curving around to the side, to maximize the useable display area. While technologies like flexible OLED displays can support this, it presents challenges for designers who need to incorporate legacy features such as the home button into ever-smaller spaces.

QTC technology from Peratech enables a home button based on force sensing to be fully integrated below the glass screen of the phone, without the need for a bezel of any kind. This enables the implementation of a home button that offers users an important positive force action, but without taking up any of the phone's displayable area.

Based on patented Quantum Tunnelling Composite (QTC®) technology, force sensors from Peratech bring a new dimension to tactile or force-touch controls by being able to sense force from under 10 grams to over 10 kilograms in a sensor as thin as 50 microns. QTC-based sensors are very robust and resilient, so that changes in resistance due to even the slightest pressure are both predictable and repeatable over millions of cycles. These thin and flexible QTC sensors come in single-point, 3D single-touch, and 3D multi-touch versions and can be used above, below or around rigid or flexible displays, or under metal, plastic, wood, or glass surfaces.


See also: Analyst predicts weak growth for smartphones in 2018

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