How does the LG rollable phone conceal the extra display space when it is closed?

The extra display is stored within the chassis, curving around the side and extending slightly onto the back of the phone behind a rail.

What mechanism does the phone use to trigger the expansion and contraction of the screen?

Users can initiate the transformation by performing a simple three-finger swipe gesture across the screen, which activates internal motors to roll the display out or in.

Are there any notable drawbacks to the physical design of this unreleased device?

Yes, the design lacks water and dust resistance, as the gear teeth and internal components are partially exposed, and the flexible screen is consistently vulnerable.

Does the phone include any rear-facing screen features?

Yes, the portion of the screen that wraps around to the back is functional and can display notifications or act as a viewfinder for the primary cameras.

How does the device handle the noise produced by the internal motors during operation?

The phone plays specific sound effects through its speakers during the rolling process, which are designed to mask the mechanical noise of the motors.

The Unreleased Rollable Smartphone!

The LG Rollable Concept
📌 The device functions as a standard 6.7-inch smartphone that can expand via a three-finger swipe gesture into a 7.4-inch mini-tablet.
⚙️ The mechanism is highly over-engineered, utilizing dual motors and three spring-loaded arms to move the chassis, allowing the screen to roll out like a scroll rather than folding.
📱 The display wraps around to the back of the device, where a clear glass section allows users to see notifications or use the 64-megapixel main camera for high-quality selfies.

Engineering and Design Challenges
🛠️ Due to the mechanical nature of the rolling gears and exposed internal components, the device lacks dust and water resistance, presenting significant durability concerns compared to traditional folding phones.
🔊 LG implemented specific sound effects that trigger during the expansion process, intended to mask the mechanical noise of the motors.
✋ To maximize space, the device features pressure-sensitive touch areas for volume control rather than physical buttons, with the power button doubling as a fingerprint reader on the rear.

Software and User Experience
🌸 LG developed custom software animations, such as a "blooming flower" transition for the lock screen and dynamic column-shifting in the Settings app, indicating the product was near a retail-ready state.
🔋 The hardware specs included 12GB of RAM and a 4,500mAh battery, showcasing that the device was intended to be a high-end flagship rather than a simple prototype.

Key Points & Insights
➡️ Innovation vs. Viability: LG’s downfall was rooted in creating "crazy" experimental devices like the Wing and the Rollable without having a consistent, high-volume "bread and butter" phone to sustain the business financially.
➡️ The "No-Crease" Advantage: While the Rollable is not entirely free of surface wavering, it successfully avoids the sharp, deep crease found in traditional foldables by using a larger rolling radius.
➡️ Legacy of Engineering: The project proves that LG had reached an advanced development stage, featuring functional hardware and polished software, but they ultimately failed to survive long enough to bring the technology to market.

📸 Video summarized with SummaryTube.com on Apr 18, 2026, 04:51 UTC

The Unreleased Rollable Smartphone!

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