CoiLED Display: Striped Flexible Displays Windable Around Objects

Abstract

We propose CoiLED Display, a stripe-shaped flexible display that can be wound around various objects. CoiLED Display is composed of a large number of chip LEDs arranged in a row, and the object wound by CoiLED can display image information. To recognize the configuration of display units wound around an object, the system conducts calibration by capturing the lighting of the LEDs with a camera and obtaining their relative positions with image processing. We evaluated the performance of the prototyped CoiLED Display from four aspects: processing time, refresh rate, power consumption, and physical flexibility. We then conducted a design study to evaluate the usability of the CoiLED Display and explored its application design space. The results suggest that the participants generally accepted our system, including the calibration process. In addition, the participants came up with a wide range of application area (e.g. wearable displays, public displays).