Pushing the envelope of innovation, Chinese technology brand Xiaomi officially introduced its first quad-curved waterfall display concept smartphone.

The 88° hyper quad-curved screen design allows visual interfaces to flow over the phone’s surface (edges) like water. Almost the entire frame of the smartphone is covered by a screen, while its body carries no ports or buttons, bringing forward the futuristic unibody no-port design.

Xiaomi said in its media advisory that “the biggest challenge in producing the industry’s first quad-curved waterfall screen was not in bending the display, but rather in manufacturing a 88° quad-curved glass panel and the 3D bonding process.”

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The 88° ultra quad-curved glass has virtually broken through the technological limits of glass production. Compared with ordinary curved glass, the difficulty of hot bending increases exponentially. Polishing a piece of such hyper-curved glass with a deep 88° bend on four sides requires self-developed glass processing equipment, hot bending under 800°C high temperature and pressure, four different polishing tools, and up to more than ten complex polishing procedures. More importantly, behind such a piece of glass are thousands of attempts.

To attach such a piece of 88° quad-curved glass to a flexible display, an innovative screen stacking design was adopted through Xiaomi’s breakthrough 3D bonding process. All of this ensures perfect and flawless screen performance.

The company also said the shape of the display is a crucial factor in determining the smartphone form of the future.

The all-screen design was made possible by Xiaomi’s 46 self-developed patented technologies. The physical ports and buttons can have their functions replicated by other alternatives. Groundbreaking technologies and engineering solutions, including ultra-thin piezoelectric ceramics, an industry-first flexible film display acoustic technology, third-generation under-display cameras, wireless charging, eSIM chips, pressure-sensitive touch sensors, and more, are seamlessly integrated together, forming a visionary yet intuitive device.