Mfundo yaukadaulo waukadaulo wa touch foil ndi wa chiwonetsero chazithunzi cha capacitive, chomwe chimakhala ndi zigawo ziwiri zowonekera, gululi la matrix lili ndi mizere yachitsulo yomwe imadutsa ma X ndi Y axs, matrix aliwonse amapanga gawo lozindikira lomwe limatha kumva kukhudza kwa dzanja la munthu. , zojambulazo ndi njira yokhayo yatsopano yomwe ingathe kukwaniritsa zokhotakhota, zowonekera bwino, zopanda madzi, zotsutsana ndi kuipitsidwa, kusokoneza kotsutsa kuwala, zopanda pake ndi kukhudza pagalasi.