Touch-sensitive device and method for manufacturing touch-sensitive device

Abstract

A touch-sensitive device includes a transparent substrate, a touch-sensing structure, a decorative layer, a trace layer, a passivation layer and a sheltering layer. The touch-sensing structure is disposed on the transparent substrate and located in a touch-sensitive region. The decorative layer is disposed on the transparent substrate and located in a non-touch-sensitive region, and the trace layer is disposed on the decorative layer. The passivation layer is disposed on the transparent substrate and at least covers the touch-sensing structure and the trace layer. The sheltering layer is disposed at least on the passivation layer and located in the non-touch-sensitive region.

What is claimed is: 
     
         1 . A method for manufacturing a touch-sensitive device, comprising the steps of:
 forming a decorative layer on a periphery of a transparent substrate, wherein the decorative layer keeps a distance away from a side edge of the transparent substrate to form a region;   forming an electrode structure on the transparent substrate;   edging the transparent substrate; and   forming a light-shielding layer on the periphery of the transparent substrate to cover the decorative layer and the region.   
     
     
         2 . The method as claimed in  claim 1 , wherein the region is made to prevent damage to the decorative layer from the edging process. 
     
     
         3 . The method as claimed in  claim 1 , wherein the light-shielding layer covers the side edge of the transparent substrate. 
     
     
         4 . The method as claimed in  claim 1 , wherein the electrode structure overlaps the decorative layer. 
     
     
         5 . The method as claimed in  claim 1 , wherein the electrode structure comprises a plurality of first sensing series, a plurality of second sensing series, and a plurality of insulators separate from each other, the second sensing series and the first sensing series are oriented to cross over each other at crossover locations, the insulators are disposed in the crossover locations to separate the first sensing series and the second sensing series at each of the crossover locations. 
     
     
         6 . The touch-sensitive device as claimed in  claim 1 , wherein the decorative layer is formed from photo resist and the light-shielding layer is formed from ink. 
     
     
         7 . The touch-sensitive device as claimed in  claim 1 , wherein the light-shielding layer comprises at least one of photo resist, diamond-like carbon, ceramic, colored ink, resin and a material capable of transmitting infrared light. 
     
     
         8 . The touch-sensitive device as claimed in  claim 1 , wherein the light-shielding layer comprises at least one of a translucent material, an opaque material, and a material having low light transmittance. 
     
     
         9 . The touch-sensitive device as claimed in  claim 1 , wherein the decorative layer comprises at least one of photo resist, diamond-like carbon, ceramic, colored ink and resin. 
     
     
         10 . A touch-sensitive device, comprising:
 a transparent substrate has at least one processed edge formed as a result of edge processing;   a touch-sensing structure disposed on the transparent substrate;   a trace layer electrically connected to the touch-sensing structure;   a decorative layer disposed on the transparent substrate for shielding the trace layer, wherein a region is formed between the decorative layer and the processed edge; and   a light-shielding layer disposed on a periphery of the transparent substrate, wherein the light-shielding layer covers the decorative layer and the region.   
     
     
         11 . The touch-sensitive device as claimed in  claim 10 , wherein the light-shielding layer covers the trace layer. 
     
     
         12 . The touch-sensitive device as claimed in  claim 10 , wherein the light-shielding layer surrounds the decorative layer. 
     
     
         13 . The touch-sensitive device as claimed in  claim 10 , wherein the touch-sensing structure comprises a plurality of first sensing series and a plurality of second sensing series oriented to cross over each other at crossover locations, each of the first sensing series comprises multiple first electrodes and multiple first connecting lines, the first electrodes are connected with each other by the first connecting lines, each of the second sensing series comprises multiple second electrodes and multiple second connecting lines, the second electrodes are connected with each other by the second connecting lines, and a plurality of insulators separate from each other are disposed in the crossover locations to separate the first sensing series and the second sensing series. 
     
     
         14 . The touch-sensitive device as claimed in  claim 13 , wherein a lateral side of at least one of the insulators is not aligned with a lateral side of one of the second connecting lines under the insulator to expose a part of the second connecting line, and one of the second electrodes covers the exposed part of the second connecting line and touches the lateral side of the insulator, the lateral side of the second connecting line and the exposed part of the second connecting line. 
     
     
         15 . The touch-sensitive device as claimed in  claim 13 , wherein the first electrodes are disposed on the transparent substrate along a first direction, the second electrodes are disposed on the transparent substrate along a second direction, a length of one of the insulators along the second direction is shorter than a length of one of the second connecting lines under the insulator to expose a part of the second connecting line. 
     
     
         16 . The touch-sensitive device as claimed in  claim 15 , wherein at least one of the second electrodes covers and is in contact with the exposed part of the second connecting line. 
     
     
         17 . The touch-sensitive device as claimed in  claim 15 , wherein a length of one of the first connecting lines along the second direction is shorter than a length of one of the insulators along the second direction under the first connecting line. 
     
     
         18 . The touch-sensitive device as claimed in  claim 10 , further comprising:
 a passivation layer disposed on the transparent substrate and covering the trace layer and the decorative layer.   
     
     
         19 . The touch-sensitive device as claimed in  claim 10 , wherein the touch-sensing structure is attached to a display device, and the display device overlaps at least a part of the decorative layer. 
     
     
         20 . The touch-sensitive device as claimed in  claim 19 , wherein the display device is a liquid crystal display, an organic light-emitting diode display, an electro-wetting display, a bi-stable display, or an electrophoretic display.