A flat display device unified with a touch panel which is adaptive to improve its reliability is disclosed. The flat display device unified with touch panel includes: a liquid crystal display panel having a color filter substrate and a thin film transistor substrate; and the touch panel disposed on the liquid crystal display panel. The touch panel includes: an upper sheet extended to oppose to a driver area of the liquid crystal display panel; a first transparent conduction film formed on the upper sheet; a second transparent conduction film formed on the color filter substrate of the liquid crystal display panel; and a connector connected to the upper sheet.