A Study on the Enhancing Display characteristics of 7-Segment LED display devices using Software

In this paper, it presented an LED display device with a very low price and simple driving circuit, that a software control method to control the dry-looking display of the 7-segment LED to create a softer and more luxurious atmosphere.To do this, the differences in display between LED devices and vacuum fluorescent display tubes were analyzed, and it was confirmed that there were differences in the spread of light and reaction speed when display content changed.Accordingly, we presented a method and software algorithm that can provide an afterimage phenomenon to changes in the dry-looking 7-segment LED display.To prove the effectiveness of the proposed method, a simple experimental circuit was constructed and software was implemented using assembly language.As a result, it was confirmed that the afterimage phenomenon successfully occurred when the display number of the 7-segment LED changed, and as a result, the dry-looking and mechanical-feel It was confirmed that the 7-segment LED with an display state changed to a smooth and luxurious display state.