Method and apparatus for displaying screen with eye tracking in portable terminal

A method for displaying a screen by using eye tracking in a portable terminal including a display unit and a camera unit, the method comprising:

• displaying a text on the display unit;
• eye tracking by determining and storing position information of a user's eyeball corresponding to the text through the camera unit;
• determining whether the portable terminal enters a sleep mode;
• and
• displaying a text position which the eye last tracked on an upper part of the display unit when a display request for the text occurs in the sleep mode.

An apparatus for controlling a screen by using an eye tracking, the apparatus comprising:

• a display unit configured to display a message on the screen;
• a camera unit configured to collect information of a user's eyeball;
• and
• a controller configured to determine a position of the user's eyeball using the information collected through the camera unit, to determine a position of a corresponding message, and to compare the positions to display an unread message on an upper part of the display unit by determining the message as the unread message when the positions are not substantially identical.