TCL CSOT (TCL China Star Optoelectronics Technology) unveiled the world’s first functional tri-foldable phone at the Society for Information Display (SID) 2024 exhibition. It comes five years after the company showed a non-working prototype of a similar design in 2019.
The phone uses a “Free-type” tri-foldable display that unfolds to reveal a 7.85-inch screen, offering a tablet-like experience when fully open. The panel has a typical tablet aspect ratio when flattened and supports a unique folding mechanism that allows for both “G” and “Z” shaped configurations.
Previous iterations of tri-foldable phones have struggled with excessive thickness. TCL appears to have addressed this concern, with their model measuring a mere 427 microns thick.
The phone also has what TCL calls a Sensor Under Panel (SUP) design that enables 3D facial recognition through sensors fitted beneath the display. mobile payments and device unlocking.
Notably, both the regular display area and the SUP region maintain a consistent pixel density of 420PPI for a uniform visual experience.
The panel also has modern tech like LTPO technology that allows the device to adjust the refresh rate between 1Hz and 120Hz and low power consumption. Durability is another focus, with TCL claiming the display is built to last.
TCL’s plans for commercialization of this tri-foldable phone remain unclear. It’s worth noting that giants like Huawei are rumored to be working on similar devices. Rumors are that Huawei may launch a tri-fold phone with a 10-inch display later this year.
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