Ecologically friendly and organically composed fuel products and fire starters are presented. The employment recruiting system automates many of the services related to employment recruiting. Also, in the mutual connection of the two sets of inverters, display data is inputted to a line connected to the gate of the transistor connected in series with the organic electoluminescent device, and owing to this connection, the write load is reduced, and the high resolution is achieved by enabling to write at high speed.