A teardown of a canceled LG rollable smartphone is revealing hardware that feels more advanced than most devices available in 2026. YouTuber Zack Nelson of JerryRigEverything recently obtained and disassembled a near-finished prototype that LG intended to launch in 2021 before the company shuttered its mobile division, uncovering a motorized display system that solves several persistent pain points of the modern foldable era.
Engineering a screen without the crease
The defining characteristic of the LG Rollable is its approach to expansion. While contemporary foldables rely on a hinge to bend the screen—often resulting in a visible center crease and structural stress—LG utilized a motorized mechanism to slide the display outward. This allows a standard 5.5-inch handset to stretch into a nearly 7-inch tablet-like device without any hard fold point.
Inside the chassis, the system is powered by two motors paired with a spring-loaded structure consisting of three arms. This specific engineering choice keeps internal components aligned as the screen moves, reducing the uneven stress typically seen in folding designs. Because the display rolls rather than bends, the hardware removes the crease entirely, a feat that remains a primary struggle for foldable manufacturers today.
Market Context: LG’s Mobile Exit
LG officially exited the smartphone market in 2021, leaving several experimental projects in limbo. The rollable phone was one of the most advanced prototypes, designed to bridge the gap between a phone and a tablet without the bulk or durability concerns of early folding screens.
Beyond the expansion: The rear display trick
The device’s utility extends beyond the main screen’s growth. The teardown reveals a clever utilize of the flexible OLED panel: when the phone is closed, a portion of the screen rolls behind a transparent panel on the back of the device. This creates a functional rear display, allowing users to preview selfies using the primary main camera rather than relying on lower-resolution front-facing sensors.

This level of cohesion suggests the device was not a rough experimental prototype but a product that was nearly ready for retail shelves. Even five years after its initial development, the hardware remains functional, showcasing a polished execution of a concept that the industry has largely avoided in mass-market production.
The 2026 foldable landscape
Seeing this hardware in 2026 creates a stark contrast with current offerings. Most “innovation” in the foldable space has focused on refining hinges and thinning the chassis, yet the fundamental problem of the screen crease persists. LG’s motorized approach represents a different philosophical path—one where mechanical movement replaces material bending.
The industry may finally be circling back to this idea. Samsung Display recently showcased a similar slidable concept at MWC 2026, suggesting that the rollable form factor is once again being viewed as a viable alternative to the fold. However, the LG teardown serves as a reminder that the technical foundation for this experience was essentially solved years ago.
The disparity between this lost prototype and current flagship designs suggests that the industry’s reliance on folding hinges may have been a matter of manufacturing convenience rather than technical superiority.
Industry Implications
For users, the appeal of a rollable is clear: more screen real estate without the fragility or aesthetic compromise of a crease. For manufacturers, the challenge remains the complexity of the motorized arms and the potential for mechanical failure compared to a passive hinge. LG’s success in building a functional, polished version of this device proves the concept is viable, even if the business decision to exit the market prevented it from reaching consumers.
As Samsung and others explore slidable displays, the LG Rollable stands as a benchmark of what was possible before the company’s departure from the mobile space.
Analytical Q&A
Does the rollable design eliminate all durability concerns?
While it removes the screen crease and folding stress, it introduces new variables, such as the longevity of the two motors and the risk of debris entering the sliding mechanism.
Why wasn’t this released in 2021?
The device was near completion, but LG’s decision to shut down its entire mobile division took precedence over the launch of any individual product.
If rollable displays eventually replace foldables, will the added mechanical complexity be a fair trade for a crease-free experience?






