主权项 |
1. A portable device, comprising:
a display unit configured to detect a control input, and display digital information, wherein the display unit includes a first display region located at a front surface of the portable device and a second display region located at a top or lateral surface of the portable device; a sensor unit configured to sense which one of the first display region and the second display region is viewed by a user; and a controller configured to: display a first layer from among a plurality of layers on the first display region, display an index of the plurality of layers on the second display region, wherein the index represents a list of the plurality of layers, determine a user-viewed display region from among the first display region and the second display region, detect a first control input to the first display region, and control the first layer displayed on the first display region in response to the first control input when the first display region is the user-viewed display region, or the index displayed on the second display region in response to the first control input when the second display region is the user-viewed display region. |