TCL creates the world’s first 7.85-inch tri-foldable smartphone

TCL tri-foldable mobile phone

At the SID 2024 exhibition in San Jose, United States, the world of mobile technology has witnessed a significant leap forward. Chinese manufacturer, TCL, unveiled the world’s first 7.85-inch tri-foldable smartphone at the event. This groundbreaking innovation marks a major milestone in the development of foldable screen technology. It will also offer users an experience that is a completely new mobile experience.

TCL tri-foldable mobile phone

The Tri-Foldable Screen

The tri-foldable screen, dubbed “Free-type,” is TCL Huaxing’s self-developed technology that supports both “G-shaped” and “Z-shaped” folding configurations. This flexibility allows the screen to be fully flattened, with a ratio that closely resembles the current mainstream tablet display ratio. The screen’s ability to adapt to different folding patterns provides users with a unique and versatile mobile experience.

Low-Power Technologies

The tri-foldable screen incorporates multiple low-power technologies, including Tandem, LTPO, and PLP. These technologies not only enable high brightness but also offer the advantages of low power consumption and long life. This means that users can enjoy an immersive mobile experience without worrying about their device’s battery life.

Design and Thickness

The screen’s stepped appearance design allows for a remarkably thin profile, with a thickness of just 472 microns, less than 0.5 mm. The overall thickness of the device is also controlled at 17 mm, making it a compact and portable option for users. The extremely narrow bezel design further enhances the user experience, providing an unobstructed view of the large screen.

Under-Screen Face Authentication

In addition to the tri-foldable screen, TCL Huaxing also showcased the world’s first 7.85-inch under-screen face authentication flexible screen. This innovative technology adopts a SUP (Sensor under panel) design, which enables a seamless and secure biometric authentication experience.

TCL tri-foldable mobile phone

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The under-screen face authentication technology is compatible with 3D face recognition without the need for slots or holes, maximizing screen integrity. This feature provides an additional layer of security and convenience for users, allowing them to unlock their devices quickly and securely.

Global Screen Display Consistency

The under-screen display (SUP area) and the normal display area (AA area) boast a pixel density of 420PPI, ensuring global screen display consistency. This means that users can enjoy a uniform visual experience across the entire screen, without any noticeable differences in display quality.

LTPO Technology and Refresh Rate

The under-screen face authentication flexible screen uses TCL CSOT’s LTPO technology, which supports a refresh rate of up to 120Hz. This technology enables a smoother and more responsive user interface, making it ideal for gaming, video streaming, and other graphics-intensive applications.

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Implications and Future Prospects

The launch of the world’s first tri-foldable smartphone marks a significant shift in the mobile technology landscape. It offers users a new level of flexibility and convenience, with the ability to switch seamlessly between a compact phone and a larger tablet-like device. The under-screen face authentication technology adds an extra layer of security and convenience, making it an attractive feature for users. Over the past few years, there have been improvements in the foldable smartphone industry. We expect to see more improvements in this industry in the coming years. The potential applications of this technology are vast, with possibilities ranging from enhanced gaming experiences to improved productivity and creativity.


TCL Huaxing’s tri-foldable smartphone is a testament to the company’s commitment to innovation and pushing the boundaries of mobile technology. It comes with a unique folding design, low-power technologies, and under-screen face authentication. This device brings a new experience to foldable smartphone users. Certainly, it will introduce new ways for users to interact with mobile devices. As technology continues to advance, we can expect to see even more exciting developments in the world of mobile technology. What do you think about the new TCL tri-foldable phone? Let us know your thoughts in the comment section below

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