Transparent conductive film, method for making the same, and touch-sensitive screen using the same
AssigneesInterface Optoelectronic (Shenzhen) Co., Ltd., General Interface Solution Limited
InventorsTEN-HSING JAW, CHIN-YANG WU, CHIU-CHI CHEN, SHIH-WEN PENG, TE-JEN TSENG, CHENG-HSIN CHUANG
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Abstract
A transparent conductive film includes a transparent substrate. A support layer is formed on one surface of the substrate. A surface of the support layer away from the substrate defines grooves formed in a mesh pattern. An ink layer is formed at a bottom of the grooves. A conductive layer is formed on the ink layer and in a mesh pattern. A top of the conductive layer protrudes out of the grooves.
Claims16
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 plurality of grooves formed in a mesh pattern;
- an ink layer formed at a bottom of the grooves;
- and
- a conductive layer formed on the ink layer and in a mesh pattern, a top of the conductive layer protruding out of the grooves.
The transparent conductive film of claim 4, wherein the polyolefin resin is selected from a group consisting of polyethylene, polypropylene, polystyrene, and ethylene vinyl acetate.
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 plurality of grooves formed in a mesh pattern;
- an ink layer formed at a bottom of the grooves;
- and
- a conductive layer formed on the ink layer and in a mesh pattern, a top of the conductive layer protruding out of the grooves;
- and
- a plurality of electrode wirings electrically connected to the conductive layer, 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;
- loading the substrate coated with the transparent resin material into the mold core, the plurality of ribs formed at the mold core 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;
- forming an ink layer at a bottom of the grooves;
- and
- forming a conductive layer in a mesh pattern on the ink layer, a top of the conductive layer protruding out of the grooves.
Dependencies are inferred from the claim text.