A mirror assembly (100) comprising: a reflective portion (110) configured to reflect incident light； a display unit (120) arranged to overlap the reflective portion, wherein the display unit is configured to display at least one of a visual element and a blurred effect element； and a control unit (130). The control unit (130) is configured to: receive instruction to display a visual element or instruction to display a blurred effect element； determine, based on the received instruction, a blur region for the visual element or a motion trajectory of the blurred effect element, wherein the blur region or the blurred effect element is larger than a display resolution of the display unit； and control the display unit to display the visual element with the determined blur region or to display the blurred effect element in the determined motion trajectory in a field of view of a user.
