Filter module and touch screen having the same

Abstract

The present disclosure relates to a filter module and a touch screen having the filter module. The filter module includes a substrate, the substrate includes a first surface and a second surface opposite to the first surface, the first surface is provided with a shielding matrix and a color resister distributed in the shielding matrix, the shielding matrix includes intersecting grid lines, the grid lines intersect to form grids, the color resister is formed in the grids, the second surface is provided with a conductive layer, the conductive layer comprises a first conductive pattern and a second conductive pattern, the first conductive pattern and the second conductive pattern are spaced apart from each other to form a sensing structure, the conductive layer is coated with a coating layer.

What is claimed is: 
     
         1 . A filter module, comprising
 a substrate, comprising a first surface and a second surface opposite to the first surface, wherein the first surface is provided with a shielding matrix and a color resister distributed in the shielding matrix, the shielding matrix comprises intersecting grid lines, the grid lines intersect with each other to form grids, the color resister is received in the grids; and   a conductive layer located on the second surface, wherein the conductive layer comprises first conductive patterns and second conductive patterns, the first conductive patterns and the second conductive patterns are spaced apart from each other to form a sensing structure, the conductive layer is coated with a coating layer.   
     
     
         2 . The filter module according to  claim 1 , wherein the first conductive patterns and the second conductive patterns comprise conductive meshes, the conductive meshes are formed with intersected conductive wires. 
     
     
         3 . The filter module according to  claim 2 , wherein a projection of the conductive wires on the shielding matrix superposes the grid lines of the shielding matrix. 
     
     
         4 . The filter module according to  claim 3 , wherein a mesh cell of the conductive meshes is aligned to a grid of the shielding matrix. 
     
     
         5 . The filter module according to  claim 3 , wherein a mesh cell of the conductive meshes is aligned to a plurality of grids of the shielding matrix. 
     
     
         6 . The filter module according to  claim 2 , wherein a width of each of the conductive wires of the conductive layer is less than a width of the grid lines of the shielding matrix. 
     
     
         7 . The filter module according to  claim 2 , wherein the conductive wires are curve or broken wires. 
     
     
         8 . The filter module according to  claim 2 , wherein the conductive wire are made of metal. 
     
     
         9 . The filter module according to  claim 2 , wherein the width of the conductive wires is in the range from 500 nm to 5 μm. 
     
     
         10 . The filter module according to  claim 1 , wherein the first conductive patterns and the second conductive patterns are formed by etching a metal layer attached to the second surface of the substrate, the coating layer defines a patterned groove on a side thereof adjacent to the second surface, the first conductive patterns and the second conductive patterns are embedded in the patterned groove. 
     
     
         11 . The filter module according to  claim 10 , wherein thicknesses of the first conductive patterns and the second conductive patterns are less than or equal to the depth of the groove. 
     
     
         12 . The filter module according to  claim 10 , wherein the metal coating layer is made of at least one metal selected from a group consisting of silver, copper, zinc, gold, and nickel. 
     
     
         13 . The filter module according to  claim 12 , wherein at least two spaced second conductive patterns are arranged on one side of each of the first conductive patterns, the second conductive patterns on both sides of the first conductive pattern are insulated. 
     
     
         14 . The filter module according to  claim 12 , further comprising a plurality of conductive bridges embedded in the coating layer, wherein each of the conductive bridges comprises a mesh portion composed of the conductive wires, the, mesh portion and the first conductive patterns are spaced apart along a direction of the thickness of the coating layer, a part of the coating layer located between the conductive bridge and the first conductive patterns forms an insulating layer. 
     
     
         15 . The filter module according to  claim 14 , wherein the conductive bridge further comprising two conductive blocks located on both ends of the mesh portion, the mesh portion are formed by intersecting of the conductive wires, the conductive block extends from an end of the mesh portion to the second conductive patterns and is electrically connected to the second conductive patterns. 
     
     
         16 . The filter module according to  claim 15 , wherein the conductive wires of the conductive bridge and the grid lines of the shielding matrix are aligned. 
     
     
         17 . The filter module according  claim 15 , wherein the conductive block and the grid lines of the shielding matrix are aligned. 
     
     
         18 . The filter module according to  claim 15 , wherein the conductive block connects at least two conductive wires of the second conductive pattern. 
     
     
         19 . A touch screen, comprising a TFT electrode plate, a LCD module, the filter module according to  claim 1 , and a polarizer, which are laminated sequentially.