Design Factors on Dynamic Text Display

Electronic information display systems are widely used in public places. The increase in use of light-emitting diodes (LED) display arouses our interest in the effective methods of displaying dynamics text. In order to overcome the limitations of screen size of the display units, numerous means of presenting moving materials on dynamic display have been invented. However, in the past, researchers only focused on the studies of dynamic text display on small screens such as cellular phones, pagers and desktop phones and some researches concern about the optimal dynamic text display in website design. So far, no studies have been found on LED display board for optimal display method. There are many factors that would affect the readability of electronic text. This paper reviews some related empirical studies concerning the various display methods of dynamic text presentation. The factors explored in this review are the text display type, character type, text display direction, and text/background color combination. The review would be helpful to researchers in formulating further research plans and methodology for determining the optimum dynamic text display methods on LED display boards.