The march towards thinner laptops has challenged computer manufacturers in a number of ways. When designing a laptop that’s just three-quarters of an inch thin or thinner, everything matters. Even the size of thickness of a keyboard or touchpad makes a big difference.

Synaptics is responding to these design realities with the introduction of new user interfaces. One is the ForcePad, a new type of touchpad that is capable of measuring the precise amount of force the user inputs. This makes it possible to drop physical left/right mouse buttons entirely, reducing maximum thickness from 5mm to 3mm. It also provides additional input which can be harnessed by software for precise control.

The company is also introducing a new keyboard design called ThinTouch. This keyboard redesigns (or rather, eliminates) the keyboard switch to reduce overall thickness by 30 to 50 percent without sacrificing an optional backlight. The keyboard is also force sensitive, which means that users can activate alternate characters by pressing harder instead of using the Shift key.

thintouch.jpg

Both new technologies are interesting, though also potentially problematic. Of concern is the lack of key travel in the ThinTouch design, which is evident in the picture above. There’s little movement in the key, which makes me wonder what typing on this keyboard is like. I’d wager it’s not the best experience. I find it very odd that a company responsible for designing user interface elements for a laptop would seek to reduce one of the laptop’s most noticeable advantages over a tablet – a tactile keyboard.

With that said, I'm sure these devices will make their way to ultrabooks in short order. Reducing the size of the keyboard and touchpad will allow for a larger battery and/or better cooling. The battery life increase will be of particular use to OEMs, who see battery life as a nice, easy figure that can be used in marketing materials. A better battery can be explained with a handful of words. Explaining a better keyboard takes more time.

No release dates or launch products have been detailed yet. We'll probably hear more at CES 2013.