A leaflet is produced from a pre-printed sheet of material by folding the sheet with at least one crease-line along the line of advancement of the sheet but preferably with two or more such crease-lines so that the sheet is fan-folded. The look-up table is modified to perform two concurrent combinatorial functions, or one function for an increased number of inputs. Each of the pixel units includes a first scan line, a second scan line, a data line, a first thin-film transistor, a second thin-film transistor, a first pixel electrode and a second pixel electrode. The generated dashboard can then be rendered by the renderer in association with the displayed key performance indicator value.