US Patent 10345893 Wearable device and control method therefor

A wearable device according to one embodiment of the present specification detects the shape and grip strength of the hand on the basis of the tendons of a wearer's wrist, and can change a display position of an image on the basis of the rotating direction of the wearable device. In addition, the wearable device can sense context information of the wearer by using the tendons of the wrist, thereby providing an improved information providing method.