Appaturus and method for screen change in portable terminal

A device for screen changing in a portable terminal and a method are provided to change letter size, types of fonts, and screen size displayed on a screen of the terminal into convenient-to-view type letter size, fonts, and screen size for a user through simple manual work. An input unit delivers font changing, letter size changing, and screen size changing requests. A font changing unit(140) changes a displayed font into a particular font according to the font changing request received from the input unit. A letter size changing unit(150) changes displayed letter size into particular letter size according to the letter size changing request received from the input unit. A screen size changing unit(160) changes displayed screen size into particular screen size according to the screen size changing request received from the input unit.