An exemplary touch panel, includes a flexible first substrate, a second substrate opposite to the first substrate, a first electrically conductive layer formed on the first substrate and facing the second substrate, a second electrically conductive layer formed on the second substrate and facing the first substrate, a carbon nanotube film formed on the second electrically conductive layer, a plurality of insulated dot spacers arranged between the first electrically conductive layer and the carbon nanotube film, an infrared sensor array arranged on the second substrate and including a number of infrared sensors corresponding to pixels of the touch panel; and a signal processor receiving signals from the infrared sensors.