Lenovo has debuted technology for smartphones and laptops that expands the screen on request at its own Tech World 2022 event.
To make this happen, Lenovo is using rollable screen technology. The flexible OLED panels can be rolled up inside a smartphone or laptop like a scroll, and then unfurled to expand the screen.
The smartphone proof of concept shows the screen expanding from its normal state (4-in diagonal) to 6.5-in diagonal screen with the push of a button.
At present the two devices are merely proofs of concept, so it is not definite whether they will made commercially avalable yet. The challenges lie in making the devices affordable and preventing the rollable screen technology from deteriorating over time due to repeated use.