Method and digital device for access control with fingerprint authentication

A digital device, comprising:

• a display unit configured to display a home screen;
• a first sensor unit configured to sense a first user input for changing home screens;
• a second sensor unit configured to sense a second user input for extracting fingerprint information, the second sensor being provided on a rear side of the digital device;
• a processor configured to:
• control operations of the digital device and provide a plurality of home screens in a sequence;
• display a first home screen on the display unit, wherein the first home screen includes at least one icon corresponding to at least one public application permitted to be accessed by all users;
• receive a first user input for changing from the first home screen to a second home screen, the second home screen being a neighboring home screen of the first home screen in the sequence, wherein the second home screen includes at least one icon corresponding to at least one private application permitted to be accessed by a specific user;
• detect the second user input when the second home screen is a locked home screen;
• extract the fingerprint information from the second user input when the second user input is detected;
• display the second home screen when the second home screen is accessible based on the extracted fingerprint information;
• skip displaying the second home screen being the locked home screen and display a third home screen when the second home screen is not accessible based on the extracted fingerprint information, wherein the third home screen is located after the second home screen in the sequence and is an initial home screen which is not the locked home screen and which is accessible based on the extracted fingerprint information when the second home screen is not accessible based on the extracted fingerprint information, and wherein the third home screen includes at least one icon corresponding to at least one public application permitted to be accessed by all users;
• and
• change to display the second home screen or the third home screen via one of:
• displaying a turning of the first home screen to the second home screen or the third home screen, displaying a sliding of the first home screen to reveal the second home screen or the third home screen, displaying a flash removal of the first home screen to reveal the second home screen or the third home screen, and scrolling from the first home screen to the second home screen or the third home screen.