Patent ID: 8199123

Claim:
A method for making a liquid crystal display screen, the method comprising the following steps of: preparing a touch panel and a thin film transistor panel, wherein the thin film transistor panel comprises a plurality of thin film transistors, each of the thin film transistors comprises a TFT carbon nanotube layer; applying a first polarizer on a surface of the touch panel; and placing a liquid crystal layer between the first polarizer and the thin film transistor panel, wherein the touch panel comprises a first and a second TP carbon nanotube layer, the first TP carbon nanotube layer comprises at least one first carbon nanotube film, the second TP carbon nanotube layer comprises at least one second carbon nanotube film, and the touch panel is prepared by following steps of: forming a first and a second electrode plate, wherein forming the first electrode plate comprises: supplying a first substrate and the at least one first carbon nanotube film; treating the at least one first carbon nanotube film by a laser to improve the transparency of the at least one first carbon nanotube film; laying the at least one first carbon nanotube film on the first substrate thereby forming a first conductive layer on the first substrate; applying an organic solvent on the at least one first carbon nanotube film to treat the at least one first carbon nanotube film; and connecting two first electrodes to the first conductive layer; and forming the second electrode plate comprises: supplying a second substrate and at least one second carbon nanotube film; treating the at least one second carbon nanotube film by a laser to improve the transparency of the at least one second carbon nanotube film; laying the at least one second carbon nanotube film on the second substrate thereby forming a second conductive layer on the second substrate; applying an organic solvent on the at least one second carbon nanotube film; and connecting two second electrodes to the second conductive layer; and assembling the first electrode plate and the second electrode plate together having a space between the first substrate and the second substrate.