Implementation of Automatic Adjustment of Font Size System on Smartphone

Abstract

Adjusting the font size is a function of the smartphone for improving readability. This smartphone is easier to use than other function but is less useful due to the psychological factors experienced by users, such as annoyance or fear of malfunction. Adjusting the font size is difficult when you are on the move or cannot use both hands to hold the smartphone. Therefore, we need a system that can automatically adjust the font size under any circumstances to improve readability. In this paper, we implement a system, in which the font size is automatically adjusted according to the distance between the user and the smartphone, without additional device operations. By automatically adjusting the font size, this system can increase readability while reducing difficulties in operation.