Display touch device

Abstract

A display touch device includes a display panel; a touch panel disposed on one side of the display panel; and the third patterned electrodes disposed on a supporting substrate. The touch panel includes a transparent substrate; the first patterned electrodes disposed on the transparent substrate in a first direction; the second patterned electrodes disposed on the transparent substrate in a second direction. Mutual capacitors are formed between the first patterned electrodes and the second patterned electrodes, and the first patterned electrodes and the second patterned electrodes form a touch sensor structure. The first patterned electrodes partially overlap with the third patterned electrodes in a third direction, or the second patterned electrodes partially overlap with the third patterned electrodes in the third direction to form a pressure sensor structure. The third direction is a stacking direction of the display panel and the touch panel.

What is claimed is: 
     
         1 . A display touch device, comprising:
 a display panel;   a touch panel, disposed on one side of the display panel, wherein the touch panel comprises:
 a transparent substrate; 
 a plurality of first patterned electrodes, disposed on the transparent substrate in a first direction; and 
 a plurality of second patterned electrodes, disposed on the transparent substrate in a second direction, wherein a plurality of mutual capacitors are formed between the first patterned electrodes and the second patterned electrodes, and the first patterned electrodes and the second patterned electrodes form a touch sensor structure; and 
   a plurality of third patterned electrodes, disposed on a supporting substrate, wherein the first patterned electrodes partially overlap with the third patterned electrodes in a third direction, or the second patterned electrodes partially overlap with the third patterned electrodes in the third direction to form a pressure sensor structure, wherein the third direction is a stacking direction of the display panel and the touch panel.   
     
     
         2 . The display touch device as claimed in  claim 1 , further comprising an insulating layer, wherein the first patterned electrodes and the second patterned electrodes are electrically insulated from each other by the insulating layer. 
     
     
         3 . The display touch device as claimed in  claim 1 , wherein the third patterned electrodes are electrically isolated from each other and a medium layer is between the third patterned electrodes and the first patterned electrodes. 
     
     
         4 . The display touch device as claimed in  claim 3 , wherein the medium layer is an insulating medium layer of oil, air, or glue. 
     
     
         5 . The display touch device as claimed in  claim 1 , wherein each of the first patterned electrodes includes a plurality of electrode portions which are electrically connected to each other and arranged in the second direction, each of the electrode portions has a first projecting area on the display panel, each of the third patterned electrodes has a second projecting area on the touch panel, and the first projecting area is completely within the second projecting area of a corresponding electrode of the third patterned electrodes. 
     
     
         6 . The display touch device as claimed in  claim 1 , wherein each of the first patterned electrodes includes a plurality of electrode portions which are electrically connected to each other and arranged in the second direction, each of the electrode portions has a first projecting area on the display panel, each of the third patterned electrodes has a second projecting area on the touch panel, and the first projecting areas of the two adjacent ones, which are electrically connected, of the electrode portions are completely within the second projecting area of a corresponding electrode of the third patterned electrodes. 
     
     
         7 . The display touch device as claimed in  claim 1 , wherein each of the first patterned electrodes includes a plurality of electrode portions which are electrically connected to each other and arranged in the second direction, each of the electrode portions of the first patterned electrodes has a first projecting area on the display panel, each of the third patterned electrodes includes a plurality of electrode portions which are non-overlapping and are arranged in the first direction, each of the electrode portions of the third patterned electrodes has a second projecting area on the touch panel, and the second projecting area of each of the electrode portions of the third patterned electrodes is greater than or equal to the first projecting area of a corresponding electrode portion of the first patterned electrodes. 
     
     
         8 . The display touch device as claimed in  claim 1 , wherein each of the first patterned electrodes includes a plurality of electrode portions which are electrically connected to each other and arranged in the second direction, each of the electrode portions of the first patterned electrodes has a first projecting area on the display panel, each of the third patterned electrodes includes a plurality of electrode portions which are non-overlapping and are arranged in the first direction, each of the electrode portions of the third patterned electrodes has a second projecting area on the touch panel, and the second projecting area of each of the electrode portions of the third patterned electrodes is less than the first projecting area of a corresponding electrode portion of the first patterned electrodes. 
     
     
         9 . The display touch device as claimed in  claim 1 , wherein each of the second patterned electrodes includes a plurality of electrode portions which are non-overlapping and are arranged in the first direction, each of the electrode portions of the second patterned electrodes has a first projecting area on the display panel, each of the third patterned electrodes includes a plurality of electrode portions which are electrically connected to each other and arranged in the first direction, each of the electrode portions of the third patterned electrodes has a second projecting area on the touch panel, and the first projecting area of each of the electrode portions of the second patterned electrodes is less than the second projecting area of a corresponding electrode portion of the third patterned electrodes. 
     
     
         10 . The display touch device as claimed in  claim 1 , wherein the touch sensor structure performs touch sensing in a first period of a frame and the pressure sensor structure performs pressure sensing in a second period of the frame, wherein the first period does not overlap the second period. 
     
     
         11 . The display touch device as claimed in  claim 10 , wherein the first period is a display period of the frame and the second period is a vertical blanking period of the frame. 
     
     
         12 . The display touch device as claimed in  claim 11 , wherein in the display period, the first patterned electrodes are configured to send a driving signal and the second patterned electrodes are configured to collect the capacitance variation and the third patterned electrodes are coupled to a ground level, and in the vertical blanking period, the first patterned electrodes are configured to send another driving signal and the third patterned electrodes are configured to collect the capacitance variation from the deformation of the touch panel under a pressure and the second patterned electrodes are coupled to the ground level. 
     
     
         13 . The display touch device as claimed in  claim 12 , wherein in the first period, the third patterned electrodes serve as a shielding layer of the second patterned electrodes to prevent interference from the display panel, in the second period, the first patterned electrodes and the second patterned electrodes serve as a shielding layer to prevent interference from the external object. 
     
     
         14 . The display touch device as claimed in  claim 1 , wherein the supporting substrate is a color filter substrate of the display panel. 
     
     
         15 . The display touch device as claimed in  claim 1 , wherein the supporting substrate is disposed between the display panel and the touch panel.