Visual comfort and fatigue between watching linear polarized and circular polarized LCD TVS as measured by eye tracking

Abstract

An eye movement study was conducted to make clear whether the new technique of circular polarized LCD display would help to relieve the visual fatigue after long duration viewing films. 60 undergraduates and ordinary researchers were measured to assess and compare the difference of blink frequency and duration time between viewing linear polarized and circular polarized LCD displays by Eye-tracking. 60 participants were divided into two groups after matching, and the two matched groups were separately arranged to viewing linear polarized and circular polarized LCD displays. They watch the same video content (scenery video and a film), while recording the eye movement data. The results shows that the blink frequency of the two group participants which viewed linear polarized and circular polarized LCD displays first decreases and then increases in the overall trend with prolonging of the viewing time, and there is remarkable difference between the participants of viewing linear polarized and circular polarized LCD displays in blink frequency and duration time indexes. As a conclusion, circular polarized LCD causes less visual fatigue.