Patent ID: 11928257
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 12:
13. A method for tracking a gaze by an electronic device, the method comprising:
controlling a light source module to emit light through the light source module along a waveguide formed in at least one layer included in a display module;
using a camera module to detect, based on at least one pattern structure formed in the waveguide, at least a part of the emitted light, which has been reflected from a user's pupil; and
tracking movement of the user's pupil, based on the detected light,
wherein the display module is divided into a first display region, in which at least one object related to an augmented reality service is displayed, and a second display region, which corresponds to a remaining region of a display region of the display module other than the first display region, and
wherein the waveguide is at least partially formed based on the second display region of the display module.