Lenovo has revealed a new laptop at this year's CES trade show that features an under display camera. Under display cameras have long been the holy grail for phone and laptop manufacturers, as they eliminate the need for screen notches or punch holes.

Lenovo's new Yoga Slim 9i laptop has an under-display camera and 98 percent screen-to-body-ratio, both world-firsts as claimed by the company.

Lenovo President of International Markets Matthew Zielinski demonstrates the expanding screen on 'The Claman Countdown.'

Chinese technology brand Lenovo has revealed a "first-of-its-kind" laptop with a "rollable", vertically expanding display at the CES tech fair in Las Vegas. Lenovo's ThinkBook Plus Gen 6 Rollable was developed in cooperation with the company's innovation arm Lenovo Research and is a production-ready evolution of a concept first showcased two years ago.