You can always count on Lenovo to show up at a tech conference with a cool laptop concept or two. At CES 2026, we glimpsed the Legion Pro Rollable laptop with a display that expands sideways and the ThinkPad Rollable XD laptop with a display that extends upward. And now, not even two months later, Lenovo has another laptop display concept at Mobile World Congress 2026: the ThinkBook Modular AI PC Concept.
Instead of a rollable or foldable display, this ThinkBook concept has a detachable secondary display that creates a couple of different ways to spread out your work.
In addition to this latest laptop concept, Lenovo announced a number of products at MWC that will ship this year. I'll get to the other laptop updates from the show, but first, let's get our heads around Lenovo's funky, modular ThinkBook concept.
ThinkBook Modular AI PC Concept
This ThinkBook concept looks like a typical laptop, except that it has an extra display on the top cover that faces outward. Each display is a 14-inch panel, but the secondary display can be detached and deployed in a few different ways.
With the secondary display attached to the laptop's top cover on the back of the primary display, you've got the best way to carry the ThinkBook in transit. This back-to-back display arrangement can be used to present to someone sitting across from you -- whatever you're seeing on the screen facing you, they can see on the screen facing them.
More useful are the other two display modes:
1. Remove the keyboard (yes, the keyboard comes off, too), swap the second display in its place, and you've got a dual-screen laptop with double the workspace. The detachable keyboard has Bluetooth, so you can use it in this dual-screen mode.
2. Remove the rear secondary display, then set it up next to the laptop as a second screen off to the side, as you would with a portable monitor. The removable kickstand, hidden in plain sight on the bottom of the laptop, magnetically attaches to the display to prop it up in either landscape or portrait mode. You'll need to use the included cable to connect the display to the laptop, which creates some clutter, but it's still a useful setup for those busy times of day when you need to keep an eye on more things than will fit on a single 14-inch screen.
With the detachable Bluetooth keyboard, you can use the ThinkBook Modular AI PC with both of its displays arranged vertically side by side. Josh Goldman/CNET
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