The present invention more specifically, the second thin film to be attached to the step portion of the thin film and the inner housing is attached to the step part lower side outer edge of the inner housing relates to a mechanical pencil by including a conductive means so as to have a touch pen function and wherein by forming a combined holder and the touch member of the connector and the material in this way can be energized is connected to the second thin film by the user gripping the pencil that in a relatively simple configuration according to a touch input yirueojim the touch panel Sharp the mechanical pencil can be used a pencil with a touch pen combine it with the touch pen functions to import, as well as cost reduction Sikkim increase the utilization of the mechanical pencil is the product purchasing power can be given a design elements significantly improve the thin-film It relates.
To this end, the present invention is the outer housing has a hollow so as to have a predetermined receiving space; Is the intergranular in the outer housing receiving the syapeusim and writing is to occur in contact with the writing target handwritten portion inside a casing formed at the front end and; A rear end cap that is coupled to the rear end of the inner housing or the outer housing intermittent withdrawal of the lead core or prevent separation of the core material and; The inner housing or is coupled to a lower separation of the outer housing front end cap to protect writing portion of the inner housing; jidoe comprises the, outer edge of the inner housing of the writing instrument is attached to a thin film containing a metallic material, and the rear end cap unit is coupled to the conductive thin film made of the inner housing to allow the user command information input on the touch panel by contacting the trailing end cap portion on the capacitive touch panel.