The present invention relates to retroreflective sheeting. Each pixel is connected to one of the gate lines and is decided whether to receive data according to a voltage on the gate line. A surface of the imaginary object model and the spatial part is divided into a large number of blocks to form a large number of latticed divisions by lattice points. The integrated services, in turn, are offered to merchants andor their respective customers via one or more POS devices and its supporting system infrastructure at the merchant locations. In addition, different groups of concurrently activated emission points may be sequentially or alternately activated, in conjunction with collimation, to prevent the overlap of X-rays from different emission points on the detector. The present invention allows a company to maintain a smooth and stable supply of products, parts, or materials to its business operations.