Conductive mesh and touch display panel

Abstract

A touch sensor includes first sensing lines and second sensing lines. The first sensing lines are arranged in a first direction, and each of the first sensing lines includes one or more first mesh electrode. The second sensing lines are arranged in a second direction and intersecting the plurality of first sensing lines, and each of the second sensing lines includes one or more second mesh electrode. Each of the first mesh electrode and the second mesh electrode includes conductive frames and bridging electrodes. The conductive frames are apart from each other, wherein each of the conductive frames has an aperture. Each of the bridging electrodes has two ends connected to two respective ones of the conductive frames, and a junction of any one of the bridging electrodes and the respective conductive frames is a three-way junction.

What is claimed is: 
     
         1 . A conductive mesh, comprising:
 an insulative layer having a first surface and a second surface opposite to the first surface;   a first mesh electrode; and   a second mesh electrode partially overlapping the first mesh electrode, and electrically disconnected from the first mesh electrode,   wherein each of the first mesh electrode and the second mesh electrode comprises:   a plurality of conductive frames apart from each other, wherein each of the conductive frames has an aperture; and   a plurality of bridging electrodes, wherein each of the bridging electrodes has two ends connected to two respective ones of the plurality of conductive frames, and a junction of any one of the bridging electrodes and the respective conductive frame is a three-way junction,   wherein the first mesh electrode is at least partially disposed on the first surface of the insulative layer, and the second mesh electrode is entirely disposed on the second surface of the insulative layer.   
     
     
         2 . The conductive mesh of  claim 1 , wherein each of the bridging electrodes of the first mesh electrode intersects the respective one of the bridging electrodes of the second mesh electrode. 
     
     
         3 . The conductive mesh of  claim 1 , wherein the first mesh electrode and the second mesh electrode are misaligned, and the conductive frames of the first mesh electrode and the conductive frames of the second mesh electrode do not overlap each other. 
     
     
         4 . The conductive mesh of  claim 1 , wherein each of the plurality of conductive frames includes a plurality of segments connected to one another, and each of the three-way junctions is formed by one of the ends of the bridging electrode and two ends of two segments of the respective conductive frame. 
     
     
         5 . The conductive mesh of  claim 4 , wherein each of the plurality of segments is a curved segment. 
     
     
         6 . The conductive mesh of  claim 5 , wherein each of the plurality of conductive frames includes a circular frame. 
     
     
         7 . The conductive mesh of  claim 6 , wherein each of the plurality of apertures includes a circular aperture. 
     
     
         8 . The conductive mesh of  claim 4 , wherein each of the plurality of segments is a straight segment. 
     
     
         9 . The conductive mesh of  claim 8 , wherein each of the plurality of conductive frames includes a square frame, and each of the plurality of apertures includes a square aperture. 
     
     
         10 . The conductive mesh of  claim 1 , wherein the conductive frames and the bridging electrodes of the first mesh electrode are formed from a first patterned conductive layer disposed on the first surface of the insulative layer, and the conductive frames and the bridging electrodes of the second mesh electrode are formed from a second patterned conductive layer disposed on the second surface of the insulative layer. 
     
     
         11 . The conductive mesh of  claim 1 , wherein the bridging electrodes of the first mesh electrode are formed from a first patterned conductive layer disposed on the first surface of the insulative layer, and the conductive frames of the first mesh electrode and the conductive frames and the bridging electrodes of the second mesh electrode are formed from a second patterned conductive layer disposed on the second surface of the insulative layer. 
     
     
         12 . The conductive mesh of  claim 11 , wherein the first mesh electrode further comprises a plurality of through vias through the insulative layer, and electrically connected to the bridging electrodes and the conductive frames of the first mesh electrode. 
     
     
         13 . The conductive mesh of  claim 1 , wherein each of the conductive frames is connected to an adjacent conductive frame through only one bridging electrode. 
     
     
         14 . The conductive mesh of  claim 1 , wherein the plurality of conductive frames have substantially the same shape and size. 
     
     
         15 . The conductive mesh of  claim 1 , further comprising a plurality of display devices, wherein each of the display devices are disposed between one of the respective conductive frames of the first mesh electrode and one of the respective conductive frames of the second mesh electrode. 
     
     
         16 . A touch display panel, comprising:
 a touch sensor, comprising:   a plurality of first sensing lines arranged in a first direction, wherein each of the first sensing lines comprises one or more first mesh electrode;   a plurality of second sensing lines arranged in a second direction and intersecting the plurality of first sensing lines, wherein each of the second sensing lines comprises one or more second mesh electrode,   wherein each of the first mesh electrode and the second mesh electrode comprises:   a plurality of conductive frames apart from each other, wherein each of the conductive frames has an aperture; and   a plurality of bridging electrodes, wherein each of the bridging electrodes has two ends connected to two respective ones of the plurality of conductive frames, and a junction of any one of the bridging electrodes and the respective conductive frames is a three-way junction; and   a plurality display devices under the touch sensor, wherein each of the display devices are disposed between one of the respective conductive frames of the first mesh electrode and one of the respective conductive frames of the second mesh electrode.   
     
     
         17 . The touch display panel of  claim 16 , further comprising an insulative layer having a first surface and a second surface opposite to the first surface. 
     
     
         18 . The touch display panel of  claim 17 , wherein the first mesh electrode is at least partially disposed on the first surface of the insulative layer, and the second mesh electrode is entirely disposed on the second surface of the insulative layer. 
     
     
         19 . The touch display panel of  claim 18 , wherein the conductive frames and the bridging electrodes of the first mesh electrode are formed from a first patterned conductive layer disposed on the first surface of the insulative layer, and the conductive frames and the bridging electrodes of the second mesh electrode are formed from a second patterned conductive layer disposed on the second surface of the insulative layer. 
     
     
         20 . The touch display panel of  claim 18 , wherein the bridging electrodes of the first mesh electrode are formed from a first patterned conductive layer disposed on the first surface of the insulative layer, and the conductive frames of the first mesh electrode and the conductive frames and the bridging electrodes of the second mesh electrode are formed from a second patterned conductive layer disposed on the second surface of the insulative layer.