Abstract: A mobile terminal including a controller configured to execute an operation mode relating to one or more functions of the mobile terminal; a sensor configured to detect a motion of a pen unit by sensing ultrasonic waves generated by the pen unit; a display configured to display information; and a wireless communication unit configured to wireless communicate with at least one other mobile terminal. Further, the controller is further configured to compare the motion of the pen unit with a preset specific pattern, and to execute an operation corresponding to the specific pattern based on a result of the comparison.

Abstract: A backlight assembly includes a first light guide plate, a second light guide plate, a light source part and a cover part. The second light guide plate is spaced apart from the first light guide plate. The light source part includes a first light source providing light to the first light guide plate and a second light source providing light to the second light guide plate. The cover part is disposed over the light source part. The cover part overlaps with a portion of the first light guide plate and a portion of the second light guide plate. A display apparatus having the above configuration has a narrow bezel and a thin profile.

Abstract: A mobile terminal including a controller configured to execute an operation mode relating to one or more functions of the mobile terminal; a sensor configured to detect a motion of a pen unit by sensing ultrasonic waves generated by the pen unit; a display configured to display information; and a wireless communication unit configured to wireless communicate with at least one other mobile terminal. Further, the controller is further configured to compare the motion of the pen unit with a preset specific pattern, and to execute an operation corresponding to the specific pattern based on a result of the comparison.