Touch panel

Abstract

A touch panel having a transparent region and a peripheral region surrounding the transparent region is provided. The touch panel includes a transparent cover, a touch device, a light-shielding layer, a layer of conductive lines, and a touch chip. The transparent cover has a touch surface and a device mounting surface opposite thereto. The touch device is disposed on the device mounting surface and at least located at the transparent region. The light-shielding layer is disposed on the transparent cover and located inside the peripheral region. The layer of conductive lines is disposed on the device mounting surface, located inside the peripheral region, and electrically connected to the touch device. The touch chip is disposed on the layer of conductive lines through a chip-on-glass process.

What is claimed is: 
     
         1 . A touch panel with a transparent region and a peripheral region surrounding the transparent region comprising:
 a transparent cover comprising a touch surface and a device mounting surface opposite thereto;   a touch device disposed on the device mounting surface, the touch device is mainly located at the transparent region and partially located at the peripheral region;   a light-shielding layer disposed on the device mounting surface and located at the peripheral region;   a layer of conductive lines disposed on the light-shielding layer and electrically connected to the touch device; and   a first insulator disposed between the touch device and the light-shielding layer at the peripheral region.   
     
     
         2 . The touch panel of  claim 1 , wherein the touch device comprises:
 a plurality of first touch electrodes disposed extending along a first direction, each of the first touch electrodes comprises a plurality of first patterns and a plurality of first connecting lines serially connected the first patterns;   a plurality of second touch electrodes disposed extending along a second direction to intersect the first touch electrodes wherein the first direction is substantially perpendicular to the second direction, each of the second touch electrodes comprises a plurality of second patterns and a plurality of second connecting lines serially connected the second patterns; and   a second insulator disposed between the first connecting lines and the second connecting lines.   
     
     
         3 . The touch panel of  claim 2 , the first insulator and the second insulator are formed in the same process. 
     
     
         4 . The touch panel of  claim 2 , further comprising a passivation layer covering the touch device and comprising a plurality of openings exposing the first patterns at the peripheral region. 
     
     
         5 . The touch panel of  claim 2 , wherein the first patterns and the second patterns are diamond patterns. 
     
     
         6 . The touch panel of  claim 1 , wherein a thickness of the light-shielding layer ranges from 0.5 μm to 6 μm. 
     
     
         7 . The touch panel of  claim 1 , wherein the light-shielding layer is disposed on the device mounting surface and sandwiched between the layer of conductive lines and the transparent cover. 
     
     
         8 . The touch panel of  claim 1 , wherein the light-shielding layer is made of black or white resin.