Intel has used its CES press conference to outline some of the hardware requirements for its fourth generation Ultrabook certification, which all manufacturers have to abide by if they want to sell their ultra-thin laptops as official Ultrabooks.

Chief among the new requirements is the need for every screen to support touch – with Windows 8 having been optimised for touchscreens and many Ultrabook convertibles already drawing the line between laptops and tablets, this seems like a wise move on Intel’s part, and one which could lead to ever more innovative designs.

The second new requirement is the inclusion of Intel’s Wireless Display technology, which can connect a laptop to a compatible TV or monitor wirelessly.

Intel revealed that there are already 140 different Ultrabook designs on sale across the globe, with 40 supporting touch – considering the platform only launched in 2010 this is a huge achievement, but the company is expecting even more growth in 2013 and beyond.

To demonstrate what’s possible within the redefined Ultrabook requirements, Intel revealed its North Cape convertible concept. The convertible Ultrabook has an 11.6in display, but uses a unique Smart Frame feature to expand into the bezel, turning it into a 13in laptop when required. It’s possible this technology will benefit convertibles more than standard Ultrabooks, as you never hold a laptop by its display bezel, but it’s a novel concept.

The reverence unit, powered by Intel’s 4th generation Core processor (previously known as Haswell) has a claimed 13-hour battery life and can detach from its keyboard dock with one hand. Batteries are built into both the display and the keyboard, yet the display is just 10mm thick and weighs 850 grams. We’ll be taking a closer look at the North Cape concept when Intel opens its booth tomorrow on the CES show floor.