The present invention provides a method for providing information and an apparatus for providing information with which information can be secretly displayed, and further, a display technique with a lot of sense of fun can attract keen interest from people around a display such as digital signage.A method for providing information using an apparatus for providing information that displays information using a light array includes: switching and displaying an information array and a concealment array in a display cycle in which a person cannot sense an information display array of the information array using the apparatus for providing information. The information array includes the information display array concerning information to be provided, and the concealment array is generated so that the information display array becomes invisible when the concealment array overlaps with the information array. The information to be transmitted can be secretly included in a normally displayed array (such as an image or a panel) for display. Since appropriately and intermittently blocking light entering a person's eye is only required, the person can acquire the information to be transmitted without a special instrument.