Information display method and information processing device

An information display method performed by an information processing device which includes (i) a sensor which detects a line of sight of a first user, (ii) a frame body having a quadrilateral shape in a plan view of an XZ plane in an XYZ coordinate system, the frame body including an upper wall, a lower wall, a left side wall, and a right side wall, the upper wall and the lower wall opposing each other in the Z-axis direction, and the left side wall and the right side wall opposing each other in the X-axis direction, (iii) a first transparent display having the quadrilateral shape in the plan view of the XZ plane and being supported at a rear side of the frame body in the Y-axis direction, the first transparent display including a display surface which displays an image, and (iv) a processor, the information display method comprising the following performed by the processor:

• obtaining first article information related to a first article placed on the lower wall of the frame body so as to be in front of the first transparent display in the Y-axis direction, the first article being owned by the first user;
• obtaining, based on the first article information, (i) a first advertisement related to a first product or a first service which has been used by a second user and (ii) a first image related to the first advertisement, the second user being different from the first user, and the second user owning a second article related to the first article;
• displaying, on the display surface of the first transparent display, the first image such that the first user concurrently sees through the display surface (i) the first image displayed on the display surface of the first transparent display and (ii) the first article through the display surface of the first transparent display;
• determining, based on the line of sight of the first user detected by the sensor, whether or not a period during which the first user is looking at the displayed first image is greater than or equal to a predetermined period;
• when it is determined that the period during which the first user is looking at the displayed first image is greater than or equal to the predetermined period, informing the first user of the first advertisement by displaying the first advertisement on a region of the display surface of the first transparent display, the region not overlapping with the first article;
• and
• when it is determined that the period during which the first user is looking at the displayed first image is not greater than or equal to the predetermined period,
• stopping displaying the first image on the first transparent display,
• obtaining, based on the first article information, (i) a second advertisement related to a second product or a second service which has been used by the second user and (ii) a second image related to the second advertisement,
• displaying, on the display surface of the first transparent display, the second image such that the first user concurrently sees through the display surface (i) the second image displayed on the display surface of the first transparent display and (ii) the first article through the display surface of the first transparent display,
• determining, based on the line of sight of the first user detected by the sensor, whether or not a period during which the first user is looking at the displayed second image is greater than or equal to the predetermined period, and
• when it is determined that the period during which the first user is looking at the displayed second image is greater than or equal to the predetermined period, informing the first user of the second advertisement by displaying the second advertisement on a region of the display surface of the first transparent display, the region not overlapping with the first article.