Electronic device and gaze tracking method of electronic device

An electronic device comprising:

• a housing configured to have a first surface facing a first direction and a second surface facing a second direction opposite to the first direction;
• a display configured to be positioned between the first surface and the second surface;
• a first light-emitting device and a second light-emitting device configured to be positioned between the second surface and a left-eye display region and a right-eye display region of the display, respectively;
• a first camera and a second camera configured to be positioned between the display and the second surface so as to correspond to the first light-emitting device and the second light-emitting device, respectively;
• a processor configured to electrically connected to the display;
• and
• a memory configured to be electrically connected to the processor,
• wherein the memory stores instructions configured to allow, when executed, the processor to:
• detect a first optical signal output from the first light-emitting device and reflected from a left eye of a user using the first camera;
• detect a second optical signal output from the second light-emitting device and reflected from a right eye of the user using the second camera;
• and
• determine a user's gaze on the basis of the first optical signal and the second optical signal.

A gaze tracking method of an electronic device, the method comprising:

• detecting optical signals output from a first light-emitting device and a second light-emitting device and reflected from a left eye and a right eye of a user using a first camera and a second camera corresponding to the first light-emitting device and the second light-emitting device, respectively;
• and
• determining a user's gaze on the basis of the detected optical signals,
• wherein the first light-emitting device and the second light-emitting device are configured to be positioned to correspond to a left-eye display region and a right-eye display region included in a display of the electronic device, respectively.