Scent-Emitting Display Panel and Its Psychological Effects

Abstract

We propose a new method in which scents are emitted through the display screen in the direction of the viewer to enhance the reality effect of the visual images. A thin LED display panel filled with tiny pores was made for this experiment and an air control system with a blower was placed behind the screen. We experimentally proved that the direction of airflow could be controlled and scents could properly travel through the pores to the front side of the screen aimed at the viewer. The effectiveness of the scents and the psychological effects were evaluated by the subjects' biological responses and answers to a questionnaire. By analyzing their biological responses, more significant changes in skin conductance were detected when the advertisements were presented with visuals and scents than with visuals alone. Therefore, we had a lot of good reasons to objectively evaluate the psychological effects of visuals with scents.