But the phone is still a concept at this point, so it's unclear what the final product will look like — should there ever be one. Still, it's a sign that companies may be thinking about what's next beyond the traditional smartphone.
The proliferation of foldable gadgets over the past year is evidence that flexible display technology is mature enough to appear in real products, not just concepts. That has resulted in a wave of new devices from the Galaxy Fold to Samsung's newer Z Flip and Huawei's Mate X.
No one knows whether the smartphones of tomorrow will have a screen that slides out or one that folds in half. But new concepts like TCL's provide some evidence that we may be heading toward a world in which all of our phones no longer look the same.