A Study on The Effects of Display Curvature on Postural Control = A Study on The Effects of Display Curvature on Postural Control

다국어 초록 (Multilingual Abstract)

Dual or multi monitors are used for various computer tasks, and these are especially useful when a large screen is needed. As an initial form of flexible display, curved display has been recently introduced in the market. It provides some benefits including seamless large images. The aim of the current study was to investigate the effects of the curvature of a large multi display on postural control. Six male and four female college students (mean age ±SD = 20.90 ± 1.52) completed a 30-min sedentary office task in each of two display settings (600mm radius of curvature vs. flat). The office task was a combination of web browsing, documentation, and reading. During the office task, the sitter`s center of pressure (COP) was measured via a pressure mat placed on the experimental seat pan. Four measures (mean speed, median power frequency, root-mean-square distance, and sway area) were used to analyze postural control. A significantly higher median power frequency was observed in the medial-lateral (ML) direction for the curved display than for the flat display, which can be interpreted as allocation of a relatively more attention resource to the task rather than to postural control in the former case.