CleanLeaf Table: Preventing the Spread of COVID-19 through Smart Surfaces

One mechanism for the spread of the COVID-19 virus is through contaminated surfaces, e.g. tables in cafes, trains or public libraries. This mechanism may be prevented by cleaning the table surface between each use. In practice, this can be optimized by directing arriving users to clean tables and highlighting to staff which surfaces require cleaning. One approach to achieve this is through making the table surface itself smart and indicate its clean or dirty status. In the CleanLeaf table we demonstrate two approaches to integrating indication in a table surface, LEDs under a thin wood veneer and electrochromic displays. Rather than explicit light emitting display based signage, the design demonstrates calm computing with the display forming an integral part of the surface design.