Lenovo showed the device at the Lenovo Tech World event on Tuesday, and the PC maker also launched a smartphone with its own scalable screen.
Lenovo demonstrated these products using curly screen technology. The flexible OLED panel can be rolled up like a scroll, inside a smartphone or laptop, and then expanded to expand the screen.
Scrollable screen slides out and you can see more screens. The company said the technology promises to make multitasking easier on laptops while keeping the device itself compact.
Lenovo's smartphone can be expanded in the same way, and in the demonstration, Lenovo's executive vice president Luca Rossi showed how the product slides out from a smaller square screen to a longer rectangular size.
"When you need it, it won't sacrifice screen size," Rossi added during the demonstration. "It can retract smaller sizes than any other premium smartphone.
Currently, Lenovo says the two devices are just concept products, and it's unclear whether the company will mass-produce them. The main consideration is the pricing of the device and preventing curly screen technology from facing price reduction over time due to overuse.
Last month, Samsung launched a similar concept device on tablets with a curly screen that is able to expand the display from 13 inches to 17 inches. Intel also said that it hopes that the PC industry will explore using curly screens in more products, but the current bottleneck should be the overpriced pricing of such products.
