slate mode
Выражение встречается в следующем контексте:
The screen can be twisted into slate mode.

Заранее спасибо

Slate
A laptop without a keyboard but with a touch sensitive screen that can be written on. This enables the user to use handwriting and a virtual keyboard for data entry and also has all of the features and expansion ports of a standard laptop.

отсюда:

http://www.projectnomad.org/8S3n6i6S2oADooBczxFJ524bKN6Ay05i/text/help/glossary.html?listing=S