Touch panel and manufacturing method thereof

Abstract

A touch panel includes a strengthen cover lens and a touch electrode layer. The strengthen cover lens includes a first non-planar surface, and is planned with a display region and a peripheral region surrounding the display region. The touch electrode layer is formed on the first non-planar surface and overlaid on the display region and at least part of the peripheral region for manufacturing a non-planar touch panel.

What is claimed is: 
     
         1 . A touch panel, comprising:
 a strengthen cover lens including a first non-planar surface and planned with a display region and a peripheral region surrounding the display region; and   a touch electrode layer formed on the display region of the first non-planar surface through a patterning process including photoresist spraying and laser exposing.   
     
     
         2 . The touch panel of  claim 1 , wherein the first non-planar surface is a smooth curved surface or a surface which is formed of at least two facets having an angle in between. 
     
     
         3 . The touch panel of  claim 1 , further comprising:
 a leads structure located in the peripheral region and electrically connected to the touch electrode layer; and   a shading layer located fully in the peripheral region and disposed between the strengthen cover lens and the leads structure.   
     
     
         4 . The touch panel of  claim 3 , wherein the leads structure and the shading layer are respectively formed through the patterning process technologies including photoresist spraying and laser exposing. 
     
     
         5 . The touch panel of  claim 3 , further comprising a protective layer located in the display region and the peripheral region for covering the touch electrode layer, the shading layer and the leads structure. 
     
     
         6 . The touch panel of  claim 3 , wherein the touch electrode layer comprises:
 a plurality of first sensing electrodes aligned in parallel along a first axis; and   a plurality of second sensing electrodes aligned in parallel along a second axis;   wherein, the first sensing electrodes and the second sensing electrodes are staggered and insulated from each other.   
     
     
         7 . The touch panel of  claim 6 , wherein the first sensing electrodes and the second sensing electrodes are formed on the first non-planar surface. 
     
     
         8 . The touch panel of  claim 7 , wherein the touch electrode layer further comprises an insulation layer formed between the first sensing electrodes and the second sensing electrodes. 
     
     
         9 . The touch panel of  claim 6 , wherein the strengthen cover lens is made of an insulation material and further comprises a second non-planar surface corresponding to the first non-planar surface. 
     
     
         10 . The touch panel of  claim 9 , wherein the first sensing electrodes are formed on the first non-planar surface, the second sensing electrodes are formed on the second non-planar surface, and wherein with the strengthen cover lens provided between the first sensing electrodes and the second sensing electrodes, the first sensing electrodes and the second sensing electrodes are insulated from each other. 
     
     
         11 . The touch panel of  claim 9 , wherein the second non-planar surface is a smooth curved surface or a surface which is formed of at least two facets having an angle in between. 
     
     
         12 . The touch panel of  claim 6 , wherein each of the first sensing electrodes includes a plurality of first conductive units and a plurality of first conducting wires, the first conducting wires are connected with two adjacent first conductive units on the first axis; and each of the second sensing electrodes includes a plurality of second conductive units and a plurality of second conducting wires, the second conducting wires are connected with two adjacent second conductive units on the second axis; wherein the first sensing electrodes and the second sensing electrodes are staggered at the positions of the first conducting wires and the second conducting wires. 
     
     
         13 . The touch panel of  claim 3 , wherein the shading layer is disposed on the peripheral region of the first non-planar surface, and the touch electrode layer is further overlaid from the display region of the first non-planar surface to at least part of the shading layer. 
     
     
         14 . The touch panel of  claim 3 , wherein the touch electrode layer is further overlaid on at least part of the peripheral region of the first non-planar surface, and the shading layer is located between the touch electrode layer and the leads structure. 
     
     
         15 . The touch panel of  claim 14 , further includes a plurality of conductive adhesives for electrically connecting the touch electrode layer to the leads structure. 
     
     
         16 . The touch panel of  claim 15 , wherein the conductive adhesive is a transparent conductive adhesive and disposed at the junction of the display region and the peripheral region. 
     
     
         17 . The touch panel of  claim 15 , wherein the conductive adhesive has the same color as the shading layer, and is filled in a perforated structure of the shading layer. 
     
     
         18 . The touch panel of  claim 10 , wherein the leads structure includes a plurality of connecting wires, and wherein a part of the connecting wires electrically connect to the first sensing electrodes, and the other part of the connecting wires electrically connect to the second sensing electrodes. 
     
     
         19 . The touch panel of  claim 18 , further comprising:
 a protective layer formed to fully cover the first sensing electrodes and the part of the connecting wires electrically connecting to the first sensing electrodes; and   a hard coating layer formed to overall cover the second sensing electrodes and the other part of the connecting wires electrically connecting to the second sensing electrodes.   
     
     
         20 . The touch panel of  claim 6 , wherein the strengthen cover lens is made of a glass material coated with a strengthening layer, the first sensing electrodes and the second sensing electrodes are formed of transparent conductive materials, the first conducting wires of the first sensing electrodes is made of a metal material, the insulation layer is made of an insulating material, the leads structure is made of a conductive metal material, the shading layer is made of black opaque materials, and the protective layer is made of an organic material or inorganic material.