A light-emitting-element array has a semiconductor layer formed on a current-blocking layer. The overall system comprises of a merchant device operated by the merchant, electronic handheld devices operated by users, i. The in-vehicle device includes: a display for displaying the region information map and the drawing execution element; and a recommended route drawing device for drawing the recommended route when a user operates the drawing execution element. It may also include a heat sealable or winding improving layer on the side opposite the metal receiving-layer of the first polylactic acid layer. The system may provide a digital, illustrated platform and a single user interface andor a page layout program that are supported by an end-user-presentation-layer, a supplier-application-layer and a processing-application-layer interfacing the end-user-presentation- and supplier-application-layer.