Transparent conductive film, method for making the same, and touch-sensitive screen using the same

A touch-sensitive screen comprising:

• a transparent conductive film comprising:
• a transparent substrate;
• a support layer formed on at least one surface of the substrate, a surface of the support layer away from the substrate defining a groove formed in a mesh pattern, the groove including a first groove portion and a second groove portion communicating with the first groove portion, a depth of the first groove portion being less than that of the second groove portion;
• an ink layer formed at a bottom of the first groove portion and a bottom of the second groove portion;
• and
• a conductive layer formed on the ink layer and in a mesh pattern, a top of the conductive layer formed in the first groove portion protruding out of the first groove portion, and the conductive layer formed in the second groove portion being totally received in the second groove portion;
• and
• a plurality of electrode wirings electrically connected to the conductive layer formed in the first groove portion, and able to deliver touch signals from the conductive layer to a printed circuit board.

A method for making a transparent conductive film, comprising:

• providing a transparent substrate;
• coating at least one surface of the substrate with a wet transparent resin material;
• providing a mold core including a plurality of ribs formed in a mesh pattern and protruding from a surface of the mold core, loading the substrate with the transparent resin material into the mold core, and the ribs impressed into the transparent resin material at a selected temperature;
• solidifying the transparent resin material after impression to form a support layer on at least one surface of the substrate, a surface of the support layer away from the substrate defining a plurality of grooves formed in a mesh pattern, the grooves including a first groove portion and a second groove portion communicating with the first groove portion, a depth of the first groove portion being less than that of the second groove portion;
• forming an ink layer at a bottom of the first groove portion and a bottom of the second groove portion;
• and
• forming a conductive layer in a mesh pattern on the ink layer, a top of the conductive layer formed in the first groove portion protruding out of the first groove portion, and the conductive layer formed in the second groove portion being totally received in the second groove portion.