Touch panel

Abstract

A touch panel includes electrodes and routings disposed on a single conductive layer. The electrodes and routings are connected to drivers and sensors to sense mutual capacitance changes induced by a touch among the electrodes. The touch panel includes a first electrode, a second electrode, and a first routing connected to the first electrode. The second electrode includes two sub-electrodes respectively disposed at two sides of the first routing. The first electrode has a first jigsaw section, and the second electrode has a second jigsaw section mutually intervening with the first jigsaw section in an insulated manner.

What is claimed is: 
     
         1 . A touch panel, comprising:
 a first electrode, disposed on a conductive layer;   a first routing, arranged on the conductive layer and connected to the first electrode;   a second electrode, disposed on the conductive layer, comprising two second sub-electrodes respectively disposed at two sides of the first routing and insulated from the first routing;   two second routings, arranged on the conductive layer, respectively connected to the two second sub-electrodes to mutually connect the two second sub-electrodes; and   a third electrode, disposed on the conductive layer and insulated from the first electrode and the second electrode;   wherein, two among the first electrode, the second electrode, and the third electrode are respectively connected to a driver and a sensor.   
     
     
         2 . The touch panel according to  claim 1 , wherein the two second routings respectively extend along two sides of the first routing. 
     
     
         3 . The touch panel according to  claim 1 , further comprising:
 a first pad, disposed on the conductive layer; wherein two ends of the first routing are respectively connected to the first pad and the first electrode; and   a second pad, disposed on the conductive layer; wherein the two second routings respectively extend along two sides of the first routing to connect the second pad to the two second sub-electrodes.   
     
     
         4 . The touch panel according to  claim 1 , wherein the first electrode comprises two first sub-electrodes, and the first routing is connected to one of the two first sub-electrodes. 
     
     
         5 . The touch panel according to  claim 1 , wherein the two second sub-electrodes are spaced by a first gap, and the first routing extends along the first gap. 
     
     
         6 . The touch panel according to  claim 5 , further comprising a fourth electrode disposed on the conductive layer; wherein, the second electrode is located between the first electrode and the fourth electrode, and the fourth electrode comprises two fourth sub-electrodes; the two fourth sub-electrodes are spaced by a second gap, and the first routing and the two second routings extend along the second gap. 
     
     
         7 . The touch panel according to  claim 1 , comprising a touch control region and a pad region; wherein the first electrode and the second electrode are located in the touch control region; the first routing passes through a first side of the touch control region to extend to the pad region, and the two second routings also pass through the first side to extend to the pad region. 
     
     
         8 . The touch panel according to  claim 1 , further comprising:
 a fourth electrode, disposed on the conductive layer; and   a fourth routing, arranged on the conductive layer and connected to fourth electrode;   wherein, the first electrode is located between the second electrode and the fourth electrode; the touch panel comprises a touch control region and a pad region, the first electrode; the second electrode and the fourth electrode are located in the touch control region; the first routing passes through a first side of the touch control region to extend to the pad region, the fourth routing passes through a second side of the touch control region to extend to the pad region, and the first side and the second side are two different sides of the touch control region.   
     
     
         9 . The touch panel according to  claim 8 , wherein the first routing passes through first side along a first direction, and the fourth routing passes through the second side along an opposite direction to the first direction. 
     
     
         10 . The touch panel according to  claim 1 , wherein one of the first electrode and the two second sub-electrodes and the third electrode are two tessellation electrodes, and the two tessellation electrodes are respectively a first tessellation electrode and a second tessellation electrode; the first tessellation electrode has a branch between two first points at a first side thereof, such that a perimeter of the branch between the two first points is greater than a linear distance between the two first points; the second tessellation electrode has a dent between two second points at a second side thereof, such that a perimeter of the dent between the two second points is greater than a linear distance between the two second points; the branch intervenes with the dent with a gap in between. 
     
     
         11 . The touch panel according to  claim 1 , wherein the two second routings respectively locate at two sides of the first electrode. 
     
     
         12 . The touch panel according to  claim 11 , further comprising a fourth electrode formed at the conductive layer; wherein the first electrode is located between the second electrode and the fourth electrode, and the fourth electrode comprises two fourth sub-electrodes respectively connected to the two second routings. 
     
     
         13 . The touch panel according to  claim 1 , further comprising:
 a plurality of staggered pads, formed at the conductive layer, comprising a first pad and a second pad; wherein the first pad is connected to the first electrode via the first routing, and the second pad is connected to the two second sub-electrodes via the two second routings.   
     
     
         14 . The touch panel according to  claim 1 , further comprising:
 a first pad, formed at the conductive layer; wherein two ends of the first routing are respectively connected to the first pad and the first electrode;   a third pad, formed at the conductive layer; and   a third routing, formed at the conductive layer, located at a same side of the first routing as the third electrode to connect the third pad to the third electrode.   
     
     
         15 . The touch panel according to  claim 14 , further comprising:
 a fourth electrode, formed at the conductive layer; wherein the fourth electrode and the third electrode are located at two different sides of the first routing; and   a fourth routing, formed at the conductive layer, located at a same side of the first routing as the fourth electrode to connect the third pad to the fourth electrode.   
     
     
         16 . The touch panel according to  claim 1 , further comprising:
 a floating dummy electrode, formed at the conductive layer, located between two among the first electrode, the second electrode and the third electrode, and insulated from the first electrode, the second electrode and the third electrode.   
     
     
         17 . A touch panel, comprising:
 a first electrode, formed at a conductive layer, comprising a first border having a first jigsaw section extending between two first points at the first border; and   a second electrode, formed at the conductive layer, comprising a second border having a second jigsaw section extending between two second points at the second border;   wherein, the second jigsaw section protrudes between the two first points, and the first jigsaw section protrudes between the two second points.   
     
     
         18 . The touch panel according to  claim 17 , wherein the first electrode and the second electrode respectively connect to a driver and a sensor. 
     
     
         19 . The touch panel according to  claim 17 , wherein the border of the second electrode further has a fourth jigsaw section, and the touch panel further comprises:
 a third electrode, formed at the conductive layer, comprising a third border having a third jigsaw section extending between two third points at the third border;   wherein, the fourth jigsaw section protrudes between the two third points.   
     
     
         20 . The touch panel according to  claim 17 , further comprising:
 a floating dummy electrode, formed at the conductive layer, located between the first electrode and the third electrode, and insulated from the first electrode and the third electrode.