Patent ID: 8889217

Claim:
A method for forming a patterned transparent conductive film comprising: providing at least one carbon nanotube film, wherein the at least one carbon nanotube film comprises a plurality of carbon nanotubes connected end-to-end, and the plurality of carbon nanotubes are aligned along an orientation direction, wherein a method for making the at least one carbon nanotube film comprises providing a carbon nanotube array; and drawing the at least one carbon nanotube film from the carbon nanotube array; mounting the at least one carbon nanotube film on a support to obtain a carbon nanotube structure; bundling the plurality of carbon nanotubes of the carbon nanotube structure into a plurality of carbon nanotube bundles by soaking the at least one carbon nanotube film with a first organic solution, the plurality of carbon nanotube bundles being formed by the shrinking and contracting of the plurality of carbon nanotubes due to the action of the surface tension of the first organic solution, wherein the first organic solution comprises a material that is selected from the group consisting of ethanol, methanol, acetone, dichloroethane, chloroform, and any combination thereof; irradiating the carbon nanotube structure by a laser beam to obtain a predetermined pattern of the at least one carbon nanotube film; and separating the predetermined pattern of the at least one carbon nanotube film from the carbon nanotube structure by immersing the carbon nanotube film structure irradiated by the laser beam into a second organic solution, and floating the predetermined pattern of the at least one carbon nanotube film.