DisplaySkin

Abstract

Mobile devices can provide people with contextual information. This information may benefit a primary activity, assuming it is easily accessible. In this paper, we present DisplaySkin, a pose-aware device with a flexible display circling the wrist. DisplaySkin creates a kinematic model of a user's arm and uses it to place information in view, independent of body pose. In doing so, DisplaySkin aims to minimize the cost of accessing information without being intrusive. We evaluated our pose-aware display with a rotational pointing task, which was interrupted by a notification on DisplaySkin. Results show that a pose-aware display reduces the time required to respond to notifications on the wrist.

Visible Position Estimation in Whole Wrist Circumference Device towards Forearm Pose-aware Display

“…In a conventional wristwatch-type device, the display area is limited and fixed, namely the watch face. Flexible and curved display devices [30,33] expand display area from a portion on the wrist to whole circumference of the forearm [6,39,42]. Snaplet [39] is a sensoraugmented flexible display device that can detect the shape of the display, e.g., convex and flat, and offers different interactions depending on the shape.…”

“…SleeD [42] is a touch-sensitive sleeve display that facilitates explicit interaction with a wall-type display. DisplaySkin [6] is a whole-wrist circumference display that is flexible [30], and aims at realize implicit interactions with the user by adjusting the position and the orientation of displayed information to the forearm posture relative to the shoulder. An experiment showed that the proposed pose-aware display reduced the time to acknowledge the notification, and minimized the overall interruption.…”

“…By attaching two devices, for example one on the upper arm and the other on the forearm, and setting body parameters such as the relative position of the eyes from the shoulder and the length of both upper arm and forearm, the forward kinematic model can infer the position and the orientation of the wrist relative to the shoulder. This allows a system to identify the most visible position as well as the orientation in any position [6]. For our research, we adapt the inertial sensor-based approach.…”

“…Assumptions and Requirements. The design of our prototype system is based on the requirement that to estimate the forearm posture, the user would wear a single device on his/her wrist, rather than attaching multiple devices (as in [6]). The device is assumed to be stable around the forearm, meaning that it does not rotate significantly around the wrist during forearm motion, and therefore the display position on the device does not change.…”

“…However, these vibrations nonetheless distract the user from ongoing tasks because he/she needs to turn the watch display to his/her face to obtain information details. To overcome this limitation, flexible and curved displays have been drawing attention for using with wrist-worn devices [6,30,33,39,42]. Such devices expand the display area from a portion on the wrist, like watch face, to the whole wrist circumference.…”