Qualitative and Quantitative Evaluation of Screen Color Distortion with Display Angle Variation

Objective: This study aims to assist designers in creating more effective interfaces and content for displays by qualitatively and quantitatively evaluating and comparing the impact of display shape changes on color reproduction capabilities. The study examines the characteristics of color changes due to shape variations.BRBackground: Form-free displays, currently in the developmental stage, are anticipated to find applications in various industries. With the diversification of display form factors, designers need to understand color reproduction accuracy and color correctness in content and interface design, including Tangible User Interface (TUI) and Graphic User Interface (GUI).BRMethod: The study employed a 3×7 factorial design to evaluate the impact of display angles and color variations on optical measurements (quantitative assessment) and conducted qualitative assessments (brightness and color sense) with participants. The independent variables were manipulated to observe interactions between them.BRResults: The Optical Measuring Instrument revealed reduced brightness with a smaller angle, particularly sensitive to changes in W, Y, G, and C. Warm color palates saw an increase in G, while cool color palates had an increase in B. Humans didn't detect significant changes at a 135° angle compared to 90°, with Brightness mainly influenced by the angle variable, sensitive to W and R. Color Sense was influenced by both angle and color, with W being the most sensitive.BRConclusion: Through this study, designers can utilize fundamental insights into the impact of display morphology on the color reproduction abilities. This knowledge can be effectively applied in designing the content, Tangible User Interfaces (TUI), and Graphic User Interfaces (GUI) of displays.BRApplication: The findings of this study can effectively assist designers in designing of GUI and TUI for foldable displays.