The trifold idea has been tested to death on phones. Samsung, Huawei, and a handful of Chinese manufacturers have each taken their shot at folding a smartphone screen into thirds, with varying results. The Huawei Mate XT made headlines in 2024 as the world’s first mass-produced trifold phone, and then Huawei went further and stuffed a foldable display into a laptop. Lenovo tried something altogether weirder: a rollable screen that physically expands sideways, which is clever engineering built around a problem most people don’t have. TCL CSOT walked into MWC 2026 with a different angle entirely, and it landed.
The 28-inch trifold monitor collapses to a 16-inch footprint for transport, which puts it roughly in line with what fits in a standard laptop bag. That 3840×1280 resolution spread across an ultra-wide aspect ratio gives you a panel that, when unfolded, genuinely looks absurd in the best way. The color gamut is DCI-P3 99%, so this is a cinema-grade screen, not a compromised one. What TCL has understood, and what the phone trifold race missed entirely, is that the use case for three folds is far stronger on a monitor than on a handset. Your phone doesn’t need 28 inches. Your desk setup, your hotel room, or your next flight absolutely does.
Designer: TCL
At 4.48mm when unfolded, the panel is thinner than most pencils, which makes the folded thickness even more impressive given the hinge hardware packed into it. The folding radius is R1.8mm, a number that sounds unremarkable until you consider how tight that crease is across a screen this wide, and how much precision engineering goes into preventing stress fractures at that radius. TCL calls the mechanism a waterdrop hinge, borrowed from the same architecture that the better phone foldables use, now scaled up to a 28-inch form factor. The hinge handles seamless transitions between horizontal, vertical, and folded positions, and the integrated rear stand supports multi-angle suspension with stable placement for however you need to prop it. That combination of hinge flexibility and stand design is what keeps this out of the conceptual gimmick category.
Keep it partially folded and you get something that starts behaving like a curved monitor. The two outer panels angle inward, creating a passive wrap effect that a flat ultra-wide simply cannot replicate without having a physical curve manufactured into the panel itself. The 3840×1280 field of view sits noticeably wider than what most monitors deliver below 34 inches on a flat panel, and the slight inward angle adds peripheral depth that genuinely affects how immersive the experience feels. The aspect ratio alone puts you in ultra-wide territory that most desktop users spend real money chasing. It rewards close-range use, the kind of face-in-screen focus you get at a proper workstation, not a portable screen propped on a table.
The IJP OLED (inkjet-printed OLED) process behind this panel is what makes the specs achievable. Inkjet printing deposits organic materials with greater precision and less material waste than conventional vapor deposition, which is part of why TCL can hit DCI-P3 99% at 4.48mm thick without anything feeling like a compromise. Huawei’s foldable laptop used a single crease, which limits reconfigurability to open or shut. Two folds changes the logic completely: fully open for productivity, partially folded for immersion, fully folded for transit. The trifold format finally has a product category where its complexity pays off.
TCL CSOT is not the consumer electronics brand most people recognize from the TV aisle. It is the panel manufacturing subsidiary of TCL Technology, founded in 2009, and it supplies display panels to other companies rather than selling directly to end users. Lenovo already uses TCL CSOT panels in devices including the Moto Razr 60 series and its rollable laptop concept. It’s worth noting that TCL CSOT won’t directly sell this 28″ monitor… but will rather license the technology out to manufacturers who see the merit in such a product existing. Maybe Lenovo’s next laptop could have such a display, who knows… As a result, no release window or pricing has been confirmed, but the production infrastructure is being built in parallel, which is a different situation from a pure prototype with no supply chain behind it.
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