Government office, school, Institute, convention center or the like hydrogenous pen (pen) and front ([...]) and to a control array for writing and is hereinafter lecture and file stored in the, by using a small screen at a place in the swarm multiplexes in special steel such as still or moving picture using plastic screen manufacturing method relates to electronic board enabling video program material, resin base layer, said base layer provided on the screen layer, and a matte surface provided on said screen layer and PP (polypropylene) layer, said screen layer is pigment, flame retardant number, antistatic number, number and containing the resin and UV stable, said base layer, and non PP multi-layer screen layer and integrated by extrusion, said multiple extrusion can executed by the configuration on one side and a matte surface roller, hydrogenous pen (pen) and a control array for lecture and capable of storing and writing and is hereinafter disclosed.