1. An information communication method for obtaining information from a subject using a terminal device that includes an image sensor having a plurality of exposure lines, the information communication method comprising: setting an exposure time of the image sensor so that, in an image obtained by capturing the subject by the image sensor, a bright line corresponding to each of the plurality of exposure lines included in the image sensor appears according to a change in luminance of the subject; obtaining a bright line image including a plurality of bright lines, by capturing the subject that changes in luminance by the image sensor with the set exposure time; obtaining identification information of the subject, by demodulating data specified by a pattern of the plurality of bright lines included in the obtained bright line image; sending the identification information to a server; obtaining place information identified by the identification information from the server, the place information indicating a location of the subject; and displaying a location of the terminal device on a map, on a display of the terminal device using the place information.