Patent attributes
Disclosed are a wearable device and controlling method thereof. The present invention includes displaying a 1st information of a specific content on a 1st region of a screen, receiving an input for adjusting a screen length by unrolling a rollable display module for displaying the screen from a user by being initially rolled up, displaying the 1st information a portion or whole part of a 2nd region in response to the received input, and displaying a 2nd information of the specific content different from the 1st information on the 1st region, wherein the amount of the 2nd information is determined depending on a size of the 2nd region.