Influence of Primary Screen Color Landolt-C Rings on Vision Consistency Differentiation Ability

Abstract

Due to the wide use of screen colors today, our research discusses the limit value of Landolt-C ring and selects the four screen color Landolt-C ring with consistent differentiation abilities. Experiment results show that regarding Landolt-C ring color samples with saturation differences, the four samples of red R2 (H: 0°,S: 70%, B: 100%), green G7 (H: 120, ̊S: 100%, B: 70%), blue B11 (H: 240°, S: 70%,B: 70%), and white W16 (H: 360°, S: 0%, B: 65%) showed the closest reaction time results to the average value, with the least difference in between. The results were average reaction time of 556 milliseconds for red (R2), average reaction time of 556 milliseconds for green (G7), average reaction time of 557 milliseconds for blue (B11), and average reaction time of 555 milliseconds for white (W16).