2014 年 5 巻 p. 47-54
LCD screens are used in VDT work and TV viewing. Study of visibility is often from the perspective of ecological psychology. This paper describes the results of the research the relationship between human sensibility and physical indicators. Focusing on color character information, engineering evaluation and analysis of visibility are conducted. The primary purpose of this study is to show the equations by a quantitative analysis of the relationship between the visibility of the character information and background color. The second purpose, through the evaluation and analysis of LCD visibility, is to clarify the research methods of engineering control technology for information display in electronic information equipment system, and to deepen the understanding of this field.