LG nearly beat everyone to the rollable phone era, and a newly revealed teardown shows just how far ahead the company already was back in 2021.
Before LG shut down its smartphone business, it built a reputation for trying bold ideas that other brands wouldn’t touch. Devices like the LG Wing didn’t become mass-market hits, but they proved LG was willing to rethink what a phone could be. That same engineering ambition nearly resulted in something even more futuristic: the LG Rollable, a smartphone that expands its screen by physically rolling out a flexible OLED panel.
The LG Rollable came incredibly close to launch. It reportedly reached the brink of mass production, but after LG exited the mobile industry, the phone never made it to store shelves. Only a small number of units were produced and distributed internally, which is why the device has stayed a rare curiosity even years later. A few hands-on impressions surfaced online in 2022, but an in-depth look inside the hardware has been missing—until now.
A teardown showcased how the LG Rollable’s signature trick actually works, revealing a complex but surprisingly elegant internal design. The flexible OLED display rolls outward and retracts back into the body smoothly, and that motion isn’t just a simple sliding mechanism. LG engineered the system using two motors paired with a spring-driven setup consisting of three arms. This combination helps the phone expand evenly, keeping internal components moving in sync so the screen can extend without stress or misalignment.
One of the most clever touches appears when the display is fully retracted. The rolled-up portion of the OLED doesn’t just disappear into the chassis; it sits behind a transparent glass panel and can act like a small status window. It can even function as a secondary rear display, including for framing selfies using the main camera—an idea that feels especially modern even now.
What stands out most is how advanced this prototype seems compared to many recent “next generation” phone designs. Despite being built around 2021, the mechanism and overall concept still look forward-thinking, and the device shown in the teardown appears to remain functional years later—a strong testament to LG’s engineering.
The LG Rollable may never have reached mainstream buyers, but its internals highlight a reality that’s easy to forget: rollable smartphones weren’t just a concept on a stage. LG had a working, real-world device years ago, and it may have reshaped the smartphone landscape if the company had stayed in the game.
