Patent Publication Number: US-2013241857-A1

Title: Touch panel and touch display panel and method of making the same

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to a touch panel, a touch display panel, and a fabricating method thereof, and more particularly, to the touch panel, the touch display panel, and the fabricating method thereof to avoid short circuit risk. 
     2. Description of the Prior Art 
     Because of the characteristics of human-computer interaction and various design possibilities, touch sensing display panels have been widely applied to the external input interfaces of many electronic products. In recent years, as the applications of electronic products have developed diversely, consumer electronics with the integration of touch sensing functions and display panels are commercialized a lot and have evolved flourishingly, for example, mobile phones, GPS navigator systems, tablet PCs, personal digital assistances (PDA), and laptop PCs. Generally speaking, the substrate of a touch panel has a light transmissible region and a peripheral region. In the light transmissible region, there is at least one transparent sensing electrode disposed so as to provide touch capabilities; in the peripheral region, metal wires, which electrically connect transparent sensing electrodes, are disposed so as to deliver sensing signal. Moreover, in order to ensure the touch capabilities at the edge of the light transmissible region, the transparent sensing electrodes generally extend to the peripheral region, thereby overlapping and contacting the decoration layer, which is used to shield the metal wires. 
     However, since the adhesion between the decoration layer and the transparent conductive material for fabricating the transparent sensing electrodes is strong, when the transparent conductive material is being etched to form the transparent sensing electrodes, the transparent conductive material often remains on the decoration layer instead of being completed etched. It may lead to a short circuit and disable the touch capabilities of the touch panel. 
     SUMMARY OF THE INVENTION 
     It is one of the objectives of the present invention to provide a touch panel, which reduces short circuit risk. 
     An embodiment of the present invention provides a touch panel. The touch panel includes a substrate, a decoration layer, a touch sensing device and at least one first insulation pattern. The substrate has a light transmissible region and a peripheral region. The decoration layer is disposed in the peripheral region of the substrate. The touch sensing device includes a first patterned sensing layer. The first patterned sensing layer is at least disposed in the light transmissible region of the substrate, and the first patterned sensing layer extends to the peripheral region and overlaps a portion of the decoration layer. The first insulation pattern is disposed in the peripheral region of the substrate and interposed between the first patterned sensing layer and the decoration layer, thereby making the first patterned sensing layer not contact the decoration layer. 
     An embodiment of the present invention provides a touch panel. The touch panel includes a substrate, a decoration layer, a touch sensing device and at least one first insulation pattern. The substrate has a light transmissible region and a peripheral region. The decoration layer is disposed in the peripheral region of the substrate. The touch sensing device includes a first patterned transparent sensing layer. The first patterned transparent sensing layer is at least disposed in the light transmissible region of the substrate, and the first patterned transparent sensing layer extends to the peripheral region and overlaps a portion of the decoration layer. The first insulation pattern is disposed in the peripheral region of the substrate and interposed between the first patterned transparent sensing layer and the decoration layer, thereby making the first patterned transparent sensing layer not contact the decoration layer. 
     Another embodiment of the present invention provides a method of fabricating a touch panel, which includes the following steps. A substrate is provided. The substrate has a light transmissible region and a peripheral region. A decoration layer is formed in the peripheral region of the substrate. At least one first insulation pattern is formed on the decoration layer. A transparent conductive layer is formed on the substrate. A portion of the transparent conductive layer disposed on the light transmissible region and a portion of the transparent conductive layer disposed on the first insulation pattern are removed so as to form a first patterned transparent sensing layer. The first patterned transparent sensing layer includes a plurality of transparent sensing electrodes. A portion of the transparent sensing electrodes are disposed in the light transmissible region of the substrate; another portion of the transparent sensing electrodes are disposed on the decoration layer and the first insulation patterns. There are gaps in the peripheral region and each of the gaps exits between two adjacent transparent sensing electrodes. A portion of the first insulation pattern is disposed in one of the gaps and another portion of the first insulation pattern is disposed between the decoration layer and the transparent sensing electrodes respectively and partially overlaps the decoration layer and the transparent sensing electrodes. 
     Another embodiment of the present invention provides a touch panel. The touch panel includes a substrate, a decoration layer, a touch sensing device and at least one first insulation pattern. The substrate has a light transmissible region and a peripheral region. The decoration layer is disposed in the peripheral region of the substrate. The first patterned transparent sensing layer is formed by etching a transparent conductive material. The first patterned transparent sensing layer is disposed in the light transmissible region of the substrate, and the first patterned transparent sensing layer extends to the peripheral region and overlaps a portion of the decoration layer. The first insulation pattern is disposed in the peripheral region of the substrate and interposed between the first patterned transparent sensing layer and the decoration layer. The first insulation pattern is disposed and corresponds to the transparent conductive material which has been etched. 
     Another embodiment of the present invention provides a touch panel. The touch panel includes a substrate, a decoration layer, a touch sensing device and at least one first insulation pattern. The substrate has a light transmissible region and a peripheral region. The decoration layer is disposed in the peripheral region of the substrate. The first patterned transparent sensing layer is formed by etching a transparent conductive material. The first patterned transparent sensing layer is disposed in the light transmissible region of the substrate, and the first patterned transparent sensing layer extends to the peripheral region and overlaps a portion of the decoration layer. The first insulation pattern is disposed on the decoration layer in the peripheral region of the substrate. Because of the first insulation pattern and its location, none of the transparent conductive material disposed on the peripheral region remains after the transparent conductive material has been etched to form the first patterned transparent sensing layer. 
     Another embodiment of the present invention provides a method of fabricating a touch panel, which includes the following steps. A substrate is provided. The substrate has a light transmissible region and a peripheral region. A decoration layer is formed in the peripheral region of the substrate. At least one first insulation pattern is formed on the decoration layer. A transparent conductive layer is formed from a transparent conductive material on the substrate. The transparent conductive material covers the light transmissible region and the peripheral region of the substrate and covers at least one of the first insulation patterns. The transparent conductive material is etched to form a first patterned transparent sensing layer. None of the transparent conductive material disposed on the peripheral region remains after the transparent conductive material has been etched. 
     Another embodiment of the present invention provides a touch panel. The touch panel includes a substrate, a decoration layer, a touch sensing device and at least one first insulation pattern. The substrate has a light transmissible region and a peripheral region. The decoration layer is disposed in the peripheral region of the substrate. The touch sensing device includes a plurality of transparent sensing electrodes. A portion of the transparent sensing electrodes are disposed in the light transmissible region of the substrate; another portion of the transparent sensing electrodes are disposed on and partially overlap the decoration layer. There is a gap between adjacent transparent sensing electrodes in the peripheral region. A first insulation pattern is disposed in the peripheral region of the substrate. A portion of the first insulation pattern is disposed in the gap between the adjacent transparent sensing electrodes, and another portion of the first insulation pattern is disposed between the decoration layer and the transparent sensing electrodes respectively and partially overlaps the decoration layer and the transparent sensing electrodes. 
     Another embodiment of the present invention provides a touch display panel. The touch display panel includes a display panel and the above-mentioned touch panels. The display panel has a display surface. The touch panel is disposed on the display surface of the display panel. 
     These and other objectives of the present invention will no doubt become obvious to those of ordinary skill in the art after reading the following detailed description of the preferred embodiment that is illustrated in the various figures and drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIGS. 1-3  are schematic diagrams illustrating a touch panel according to the first embodiment of this present invention. 
         FIG. 4  is a schematic diagram illustrating a touch panel according to a variant of the first embodiment of the present invention. 
         FIGS. 5-6  are schematic diagrams illustrating a touch panel according to the second embodiment of the present invention. 
         FIGS. 7-8  are schematic diagrams illustrating a touch panel according to a variant of the second embodiment of the present invention. 
         FIGS. 9-11  are schematic diagrams illustrating a touch panel according to the third embodiment of this present invention. 
         FIG. 12  is a schematic diagram illustrating a touch panel according to a variant of the third embodiment of this present invention. 
         FIG. 13  is a flow schematic diagram illustrating a method of fabricating the touch panel according to the fourth embodiment of this invention. 
         FIGS. 14-16  are schematic diagrams illustrating the method of fabricating the touch panel according to the fourth embodiment of this present invention. 
         FIG. 17  is a schematic diagram illustrating a touch panel according to a first variant of the fourth embodiment of the present invention. 
         FIG. 18  is a schematic diagram illustrating a touch panel according to a second variant of the fourth embodiment of the present invention. 
         FIG. 19  is a schematic diagram illustrating a touch panel according to a third variant of the fourth embodiment of the present invention. 
         FIG. 20  is a schematic diagram illustrating a top view of the touch panel according to the fifth embodiment of the present invention. 
         FIG. 21  is a schematic diagram illustrating a touch display panel according to an embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION 
     To provide a better understanding of the present invention, features of the embodiments will be made in detail. The embodiments of the present invention are illustrated in the accompanying drawings with numbered elements. In addition, the terms such as “first” and “second” described in the present invention are used to distinguish different components or processes, which do not limit the sequence of the components or processes. 
     Please refer to  FIGS. 1-3 .  FIGS. 1-3  are schematic diagrams illustrating a touch panel according to the first embodiment of this present invention.  FIG. 1  is the schematic diagram illustrating a top view of the touch panel according to the embodiment of the present invention.  FIG. 2  is a cross-sectional view diagram taken along a cross-sectional line A-A′ in  FIG. 1 .  FIG. 3  is a cross-sectional view diagram taken along a cross-sectional line B-B′ in  FIG. 1 . As shown in  FIGS. 1-3 , the touch panel  10  of this embodiment includes a substrate  12 , a decoration layer  14 , a touch sensing device  20 , and at least one first insulation pattern  161 . The substrate  12  may be a hard transparent substrate, such as a glass substrate, or a flexible transparent substrate, such as a plastic substrate, but not limited thereto. The substrate  12  has a light transmissible region  12 A and a peripheral region  12 B, which surrounds the light transmissible region  12 A. The decoration layer  14  is disposed in the peripheral region  12 B of the substrate  12 . The material of the decoration layer  14  may include at least one of photoresist (such as black photoresist), ceramic, diamond-like carbon, ink or organic materials, but not limited thereto. The touch sensing device  20  is at least disposed in the light transmissible region  12 A of the substrate  12  so as to ensure touch capabilities. The touch sensing device  20  may include a first patterned sensing layer, for example but not limited to, a first patterned transparent sensing layer  21 . The first patterned transparent sensing layer  21  is disposed in the light transmissible region  12 A of the substrate  12 , extends to the peripheral region  12 B and overlaps a portion of the decoration layer  14 ; therefore, the touch capabilities in the interface of the light transmissible region  12 A and the peripheral region  12 B are ensured and the touch capabilities in a portion of the peripheral region  12 B are improved. The first insulation patterns  161  (as shown in  FIG. 2 ) are disposed in the peripheral region  12 B of the substrate  12  and interposed between the first patterned transparent sensing layer  21  and the decoration layer  14 . The first patterned transparent sensing layer  21  does not contact the decoration layer  14 . Moreover, a protective layer  18  may be further disposed on the substrate  12  (as shown in  FIG. 2 ) and cover the first patterned transparent sensing layer  21  and a portion of the decoration layer  14 . The material of the protective layer  18  may be an inorganic protective layer, such as silica, or an organic protective layer. Moreover, a wire (not shown), which electrically connects the first patterned transparent sensing layer  21 , may be disposed in the peripheral region  12 B of the substrate  12  so as to deliver touch signals, which are detected in the first patterned transparent sensing layer  21 , to a sensing chip (not shown). The decoration layer  14 , the first insulation patterns  161 , and the first patterned transparent sensing layer  21  may be disposed on the same surface of the substrate  12 , but not limited thereto. The first patterned transparent sensing layer  21  is a transparent conductive layer, which may be formed of indium zinc oxide or indium tin oxide, but not limited thereto. The material of the first insulation patterns  161  may be organic insulation materials or inorganic insulation materials, but not limited thereto. Moreover, the first insulation patterns  161  may be single-layered insulation patterns or composite-layered insulation patterns. 
     The first insulation patterns  161  in the present invention are disposed in the peripheral region  12 B on the substrate  12  and interposed between the first patterned transparent sensing layer  21  and the decoration layer  14  so as to prevent the first patterned transparent sensing layer  21  from contacting the decoration layer  14 . Accordingly, no transparent conductive material remains after the transparent conductive material has been etched to form the first patterned transparent sensing layer  21 ; therefore, the risk of short circuit is reduced. 
     As shown in  FIGS. 1-3 , in this embodiment, the first patterned transparent sensing layer  21  includes a plurality of first transparent sensing electrodes  21 X and a plurality of first transparent connection lines  21 C, which are disposed in the light transmissible region  12 A of the substrate  12  along a direction, for example, the x-axis direction. The first patterned transparent sensing layer  21  also includes a plurality of second transparent sensing electrodes  21 Y, which are disposed in the light transmissible region  12 A of the substrate  12  along another direction, for example, the y-axis direction. Each of the first transparent sensing electrodes  21 X and each of the second transparent sensing electrodes  21 Y may include, for example, a diamond electrode, but it is not limited to this and may be, for example, a triangular electrode, a rectangular electrode, a linear electrode or other electrodes of various shapes, respectively. Any two of the first transparent sensing electrodes  21 X adjacent to each other are connected by the first transparent connection line  21 C, and at least one of the first transparent sensing electrodes  21 X partially overlaps the decoration layer  14 . The first insulation patterns  161  are disposed between the first transparent sensing electrodes  21 X and the decoration layer  14 . The touch sensing device  20  further includes a plurality of second insulation patterns  162  and a plurality of second connection lines  23 C. Any two of the second transparent sensing electrodes  21 Y adjacent to each other are connected by the second connection line  23 C corresponding to the two of the second transparent sensing electrodes  21 Y, and at least one of the second transparent sensing electrodes  21 Y partially overlaps the decoration layer  14 . The first insulation patterns  161  are disposed between the second transparent sensing electrodes  21 Y and the decoration layer  14 . Each of the second insulation patterns  162  is disposed between the first transparent connection line  21 C and the second connection line  23 C corresponding to the first transparent connection line  21 C, respectively. In this embodiment, the touch sensing device  20  is a single-layered transparent electrode structure. In other words, the first transparent sensing electrodes  21 X, the first transparent connection lines  21 C, and the second transparent sensing electrodes  21 Y are formed of the first patterned transparent sensing layer  21 ; moreover, the second connection lines  23 C, which connect any of the second transparent sensing electrodes  21 Y adjacent to each other, are formed of another conductive layer. The second connection lines  23 C may be a metal connection line or a transparent connection line. Furthermore, in this embodiment, each of the second insulation patterns  162  is disposed on the second connection line  23 C corresponding to the second insulation pattern  162 , and the first patterned transparent sensing layer  21  is disposed on the second insulation patterns  162 . The second insulation patterns  162  and the first insulation patterns  161  may be formed of the same patterned insulation layer and fabricated by the same patterning process. 
     Touch panels are not restricted to the preceding embodiments in the present invention. Other embodiments or modifications will be detailed in the following description. In order to simplify and show the difference between the other embodiments or modifications and the above-mentioned embodiment, the same numerals denote the same components in the following description, and the same parts are not detailed redundantly. 
     Please refer to  FIG. 4 .  FIG. 4  is a schematic diagram illustrating a touch panel according to the variant embodiment of the first embodiment of the present invention. As shown in  FIG. 4 , in this variant embodiment, the second insulation patterns  162  of the touch panel  10 ′ is disposed on the first patterned transparent sensing layer  21 , and each of the second connection lines  23 C is disposed on the second insulation pattern  162  corresponding to the second connection line  23 C. The first insulation patterns  161  are disposed in the peripheral region  12 B on the substrate  12  and interposed between the first patterned transparent sensing layer  21  and the decoration layer  14 ; the second insulation patterns  162  are disposed between the first patterned transparent sensing layer  21  and the second connection lines  23 C. The second insulation patterns  162  and the first insulation patterns  161  are formed of different patterned insulation layers. 
     Please refer to  FIGS. 5-6 .  FIGS. 5-6  are schematic diagrams illustrating a touch panel according to the second embodiment of the present invention.  FIG. 5  is a schematic diagram illustrating a top view of the touch panel according to this embodiment.  FIG. 6  is a cross-sectional view diagram taken along a cross-sectional line C-C′ in  FIG. 5 . As shown in  FIGS. 5-6 , in this embodiment, the first patterned transparent sensing layer  21  of the touch panel  30  includes a plurality of transparent sensing electrodes  21 P. The transparent sensing electrodes  21 P are electrically isolated. The transparent sensing electrodes  21 P which locate in the light transmissible region  12 A extend to the peripheral region  12 B and overlap the decoration layer  14 . The first insulation patterns  161  are disposed in the peripheral region  12 B on the substrate  12  and interposed between the transparent sensing electrodes  21 P and the decoration layer  14 . The transparent sensing electrodes  21 P do not contact the decoration layer  14 . In this embodiment, the transparent sensing electrodes  21 P are rectangular electrodes. 
     Please refer to  FIGS. 7-8 .  FIGS. 7-8  are schematic diagrams illustrating a touch panel according to the variant embodiment of the second embodiment of the present invention.  FIG. 7  is a schematic diagram illustrating a top view of the touch panel according to this embodiment.  FIG. 8  is a cross-sectional view diagram taken along a cross-sectional line D-D′ in  FIG. 7 . As shown in  FIGS. 7-8 , in the variant embodiment, the first patterned transparent sensing layer  21  of the touch panel  30 ′ includes a plurality of transparent sensing electrodes  21 P. The transparent sensing electrodes  21 P adjacent to each other are electrically isolated. The transparent sensing electrodes  21 P which locate in the light transmissible region  12 A extend to the peripheral region  12 B and partially overlap the decoration layer  14 . The first insulation patterns  161  are disposed in the peripheral region  12 B on the substrate  12  and interposed between the transparent sensing electrodes  21 P and the decoration layer  14 . The transparent sensing electrodes  21 P do not contact the decoration layer  14 . The difference between the second embodiment and its variant embodiment is that the transparent sensing electrodes  21 P are triangular electrodes in this embodiment. 
     Please refer to  FIGS. 9-11 .  FIGS. 9-11  are schematic diagrams illustrating a touch panel according to the third embodiment of this present invention.  FIG. 9  is a schematic diagram illustrating a top view of the touch panel according to the embodiment of the present invention.  FIG. 10  is a cross-sectional view diagram taken along a cross-sectional line E-E′ in  FIG. 9 .  FIG. 11  is a cross-sectional view diagram taken along a cross-sectional line F-F′ in  FIG. 9 . As shown in  FIGS. 9-11 , in the touch panel  40  of this embodiment, the touch sensing device  20  is a double-layered transparent electrode structure. Therefore, the touch sensing device  20  includes a first patterned transparent sensing layer  21  and a second patterned transparent layer  22 . The first patterned transparent sensing layer  21  includes a plurality of first transparent sensing electrodes  21 X and a plurality of first transparent connection lines  21 C; any two of the first transparent sensing electrodes  21 X adjacent to each other are connected by the first transparent connection line  21 C. Moreover, at least one of the first transparent sensing electrodes  21 X partially overlaps the decoration layer  14 , and the first insulation patterns  161  are disposed between the first transparent sensing electrodes  21 X and the decoration layer  14 . The second patterned transparent layer  22  includes a plurality of second transparent sensing electrodes  22 Y and a plurality of second transparent connection lines  22 C; any two of the second transparent sensing electrodes  22 Y adjacent to each other are connected by the second transparent connection line  22 C. In this embodiment, the first patterned transparent sensing layer  21  and the second patterned transparent layer  22  are disposed on the same surface of the substrate  12 ; the first patterned transparent sensing layer  21  is disposed on the second patterned transparent layer  22 . Furthermore, the touch sensing device  20  further comprises a second insulation pattern  162 , disposed in the light transmissible region  12 A and interposed between the first patterned transparent sensing layer  21  and the second patterned transparent layer  22 . Moreover, the second insulation pattern  162  is disposed and corresponds to the transparent conductive material which has been etched. The first insulation patterns  161  are disposed between the first transparent sensing electrodes  21 X and the decoration layer  14 . The second insulation patterns  162  and the first insulation patterns  161  are formed of the same insulation layer. At least one of the second transparent sensing electrodes  22 Y partially overlaps the decoration layer  14 . The touch panel  40  further comprises at least one third insulation pattern  163  disposed in the peripheral region  12 B and interposed between the second transparent sensing electrodes  22 Y and the decoration layer  14 . 
     Please refer to  FIG. 12 .  FIG. 12  is a schematic diagram illustrating a touch panel according to the variant embodiment of the third embodiment of this present invention. As shown in  FIG. 12 , in the variant embodiment of this embodiment, the first patterned transparent sensing layer  21  and the second patterned transparent layer  22  of the touch panel  40  are disposed on the different surfaces of the substrate  12 ; the first patterned transparent sensing layer  21  and the decoration layer  14  are disposed on the same surface of the substrate  12 . The first insulation patterns  161  are disposed between the first transparent sensing electrodes  21 X and the decoration layer  14 . 
     Please refer to  FIGS. 13-16 .  FIG. 13  is a flow schematic diagram illustrating a method of fabricating the touch panel according to the fourth embodiment of this invention.  FIGS. 14-16  are schematic diagrams illustrating the method of fabricating the touch panel according to the fourth embodiment of this present invention.  FIG. 14  is a schematic diagram illustrating a top view of the touch panel according to the embodiment of the present invention.  FIG. 15  is a cross-sectional view diagram taken along a cross-sectional line G-G′ in  FIG. 14 .  FIG. 16  is a cross-sectional view diagram taken along a cross-sectional line H-H′ in  FIG. 14 . As shown in  FIGS. 13-16 , a substrate  12  is provided first, and the substrate  12  has a light transmissible region  12 A and a peripheral region  12 B. Then, a decoration layer  14  is formed in the peripheral region  12 B of the substrate  12 . In this embodiment, the material of the decoration layer  14  may include at least one of photoresist (such as black photoresist), ceramic, diamond-like carbon, ink or organic materials, but not limited thereto. Then, at least one first insulation pattern  161  is formed on the decoration layer  14 . The material of the first insulation patterns  161  may be organic insulation materials or inorganic insulation materials, but not limited thereto. Moreover, the first insulation patterns  161  may be single-layered insulation patterns or composite-layered insulation patterns. Then, a transparent conductive layer is formed on the substrate  12 . A portion of the transparent conductive layer disposed on the light transmissible region  12 A and a portion of the transparent conductive layer disposed on the first insulation patterns  161  are removed so as to form a first patterned transparent sensing layer  21 . Accordingly, the touch panel  200  of this embodiment is completely fabricated. In this embodiment, the first patterned transparent sensing layer  21  includes a plurality of transparent sensing electrodes and a plurality of first transparent connection lines  21 C. The transparent sensing electrodes include a plurality of first transparent sensing electrodes  21 X and a plurality of second transparent sensing electrodes  21 Y. Any two of the first transparent sensing electrodes  21 X adjacent to each other are connected by the first transparent connection line  21 C. A portion of the transparent sensing electrodes are disposed in the light transmissible region  12 A of the substrate  12 , and another portion of the transparent sensing electrodes is disposed on the decoration layer  14  and the first insulation patterns  161 . There are gaps in the peripheral region  12 B and each of the gaps exits between two adjacent transparent sensing electrodes. A gap given for illustration is as follows, there is a gap g between the first transparent sensing electrode  21 X and the second transparent sensing electrode  21 Y adjacent to the first transparent sensing electrode  21 X. A portion of the first insulation pattern  161  is disposed in the gap g and another portion of the first insulation pattern  161  is disposed between the decoration layer  14  and the transparent sensing electrodes respectively and partially overlaps the decoration layer  14  and the transparent sensing electrodes. The method in this embodiment further includes forming a plurality of second insulation patterns  162 , a plurality of metal wires  24  and a plurality of second connection lines  23 C on the substrate  12 , before the first patterned transparent sensing layer  21  is formed. Any two of the second transparent sensing electrodes  21 Y adjacent to each other are connected by the second connection line  23 C. Each of the second insulation patterns  162  is disposed between the first transparent connection line  21 C and the second connection line  23 C corresponding to the first transparent connection line  21 C respectively. The metal wires  24  are disposed in the peripheral region  12 B on the decoration layer  14  and electrically connect the corresponding first transparent sensing electrodes  21 X and the corresponding second transparent sensing electrodes  21 Y respectively. The second connection lines  23 C may include a metal connection line or a transparent connection line. The second insulation patterns  162  and the first insulation patterns  161  may be formed of the same insulation materials and fabricated by the same patterning process, but not limited thereto. In this embodiment, the second insulation patterns  162  are disposed on the second connection lines  23 C, and the first transparent connection lines  21 C are disposed on the second insulation patterns  162 , but not limited thereto. In a variant embodiment, the second insulation patterns  162  may be disposed on the first transparent connection lines  21 C, and the second connection lines  23 C may be disposed on the second insulation patterns  162 . Accordingly, a portion of each of the first insulation patterns  161  is disposed in one of the gaps g, and another portion of each of the first insulation patterns  161 , which is disposed between the decoration layer  14  and the transparent sensing electrodes respectively, at least partially overlaps the decoration layer  14  and the transparent sensing electrodes respectively. Furthermore, when the first patterned transparent sensing layer  21  is being etched, none of the transparent conductive material remains even if the adhesion between the decoration layer  14  and the transparent conductive material is strong, which effectively prevents short circuit risk. Moreover, the first insulation patterns  161  may further cover the sidewall of the decoration layer  14 , and thus the first insulation patterns  161  serve as planar layers and promote the flatness of the sidewall of the decoration layer  14 . For example, the included angle between the front edge of the first insulation pattern  161  and the surface in the light transmissible region  12 A of the substrate  12  is between about 5 and about 20 degrees. By covering the sidewall of the decoration layer  14  with the first insulation patterns  161 , the open circuit risk caused by the manufacture process of forming the first patterned transparent sensing layer  21  may be reduced and the yield rate is enhanced, even though the sidewall of the decoration layer  14  is extremely steep. 
     In this embodiment, the first transparent sensing electrodes  21 X, the second transparent sensing electrodes  21 Y and the first transparent connection line  21 C may all be formed of the first patterned transparent sensing layer  21 , but not limited thereto. For example, as shown in  FIG. 9 , the first transparent sensing electrodes  21 X and the first transparent connection lines  21 C may be formed of the first patterned transparent sensing layer  21 , and the second transparent sensing electrodes  21 Y and the second connection lines  23 C may be formed of the second patterned transparent layer  22 . Moreover, in this embodiment, the first insulation patterns  161  include a plurality of the first insulation patterns  161 , which do not mutually connect to each other. A portion of each the first insulation patterns  161  is disposed in the gap g between the first transparent sensing electrode  21 X and the second transparent sensing electrode  21 Y adjacent to each other, and another portion of each of the first insulation patterns  161  at least partially overlaps the decoration layer  14 , the first transparent sensing electrodes  21 X and the second transparent sensing electrodes  21 Y respectively, but not limited thereto. 
     Please refer to  FIG. 17 .  FIG. 17  is a schematic diagram illustrating a touch panel according to a first variant embodiment of the fourth embodiment of the present invention. As shown in  FIG. 17 , the difference between the fourth embodiment and its variant embodiment is that the first insulation pattern  161  is a ringlike insulation pattern and substantially surrounds the light transmissible region  12 A in the touch panel  200 ′ of the first variant embodiment. A portion of the first insulation pattern  161  is disposed in the gaps g between the first transparent sensing electrodes  21 X and the second transparent sensing electrodes  21 Y adjacent to each other, and another portion of the first insulation pattern  161  partially overlaps the decoration layer  14 , the first transparent sensing electrodes  21 X and the second transparent sensing electrodes  21 Y respectively. 
     Please refer to  FIG. 18 .  FIG. 18  is a schematic diagram illustrating a touch panel according to a second variant embodiment of the fourth embodiment of the present invention. As shown in  FIG. 18 , the difference between the fourth embodiment and its variant embodiment is that the decoration layer  14  includes at least one first color decoration layer and a second color decoration layer  142  disposed on the first color decoration layer in the touch panel  200 ″ of the second variant embodiment. For example, the decoration layer  14  in this embodiment includes three layers of the first color decoration layers  141 A,  141 B,  141 C and one layer of the second color decoration layer  142 . The first color decoration layer  141 C covers the first color decoration layer  141 B. In this embodiment, the material of the first color decoration layers  141 A,  141 B and  141 C may include ink, such as white ink, but it is not limited to this and may be ink of other colors. The material of the second color decoration layer  142  may include photoresist, such as black photoresist, but it is not limited to this and may be at least one of ceramic, diamond-like carbon, ink or organic materials. 
     Please refer to  FIG. 19 .  FIG. 19  is a schematic diagram illustrating a touch panel according to a third variant embodiment of the fourth embodiment of the present invention. As shown in  FIG. 19 , the difference between the fourth embodiment and its variant embodiment is that the decoration layer  14  includes at least one first color decoration layer and a second color decoration layer  142  disposed on the first color decoration layer in the touch panel  200 ″′ of the third variant embodiment. For example, the decoration layer  14  in this embodiment includes four layers of the first color decoration layers  141 A,  141 B,  141 C,  141 D and one layer of the second color decoration layer  142 . In this embodiment, the material of the first color decoration layer  141 A,  141 B,  141 C and  141 D may include ink, such as white ink, but it is not limited to this and may be ink of other colors. The material of the second color decoration layer  142  may include photoresist, such as black photoresist, but it is not limited to this and may be at least one of ceramic, diamond-like carbon, ink or organic materials. In this embodiment, the first color decoration layers  141 A,  141 B,  141 C and  141 D are stacked in that order upward from the surface of the substrate  12 . The second color decoration layer  142  is disposed on the first color decoration layer  141 D. Moreover, the dimensions of the first color decoration layers  141 A,  141 B,  141 C and  141 D are in descending order—that is to say, the edge of the first color decoration layer  141 B deflects from the edge of the first color decoration layer  141 A inward, the edge of the first color decoration layer  141 C deflects from the edge of the first color decoration layer  141 B inward, and the edge of the first color decoration layer  141 D deflects from the edge of the first color decoration layer  141 C inward. Therefore, the edge of any two of the first color decoration layers adjacent to each other form a stair structure. The stair structure of the decoration layer  14  has a smoother sidewall. Moreover, the first insulation patterns  161  may further cover the sidewall of the stair structure of the decoration layer  14 , and thus the first insulation patterns  161  serve as planar layers and promote the flatness of the sidewall of the decoration layer  14 . For example, the included angle between the front edge of the first insulation pattern  161  and the surface in the light transmissible region  12 A of the substrate  12  is between about 5 and about 20 degrees. By using the stair structure of the decoration layer  14  and covering the sidewall of the stair structure of the decoration layer  14  with the first insulation patterns  161 , the open circuit risk caused by the manufacture process of forming the first patterned transparent sensing layer  21  may be reduced and the yield rate is enhanced, even though the sidewall of the decoration layer  14  is extremely steep. 
     The pattern of the transparent sensing electrodes in this embodiment is not limited to the illustration in  FIG. 14 . For example, the pattern of the transparent sensing electrodes may be the pattern illustrated in  FIG. 5  and  FIG. 7 , or other appropriate patterns. Please refer to  FIG. 20 .  FIG. 20  is a schematic diagram illustrating a top view of the touch panel according to the fifth embodiment of the present invention. As shown in  FIG. 20 , the difference between previous embodiments and the fifth embodiment is that the first patterned transparent sensing layer  21  further includes a plurality of dummy electrodes  21 D in the touch panel  300  of the fifth embodiment. The dummy electrodes  21 D are disposed in the gap g between the first transparent sensing electrodes  21 X and the second transparent sensing electrodes  21 Y adjacent to each other. The dummy electrodes  21 D do not electrically connect the first transparent sensing electrodes  21 X and the second transparent sensing electrodes  21 Y. The dummy electrodes  21 D are disposed in the light transmissible region  12 A and may partially extend to the peripheral region  12 B on the first insulation pattern  161 . Because the first transparent sensing electrodes  21 X, the second transparent sensing electrodes  21 Y and the dummy electrodes  21 D are all formed of the first patterned transparent sensing layer  21 , and because the gaps s between the dummy electrodes  21 D and the first transparent sensing electrodes  21 X and the gaps s between the dummy electrodes  21 D and the second transparent sensing electrodes  21 Y are smaller than the gaps g between the first transparent sensing electrodes  21 X and the second transparent sensing electrodes  21 Y, the first insulation pattern  161  in the peripheral region  12 B is preferably disposed in the gaps g between the first transparent sensing electrodes  21 X and the second transparent sensing electrodes  21 Y adjacent to each other. Therefore, the first insulation patterns  161  are disposed between the decoration layer  14  and the first transparent sensing electrodes  21 X and between the decoration layer  14  and the second transparent sensing electrodes  21 Y respectively. Moreover, the first insulation patterns  161  at least partially overlap the decoration layer  14 , the first transparent sensing electrodes  21 X and the second transparent sensing electrodes  21 Y respectively. That is to say, the first insulation patterns  161  are also disposed in the gaps s between the dummy electrodes  21 D and the first transparent sensing electrodes  21 X and between the dummy electrodes  21 D and the second transparent sensing electrodes  21 Y. Accordingly, when the first patterned transparent sensing layer  21  is being etched, none of the transparent conductive material remains even if the adhesion between the decoration layer  14  and the transparent conductive material is strong, which effectively prevents short circuit risk. In this embodiment, the first insulation patterns  161  may include a plurality of the first insulation patterns  161 , which do not mutually connect to each other, but not limited thereto. In a variant embodiment, the first insulation pattern  161  is a ringlike insulation pattern and substantially surrounds the light transmissible region  12 A. 
     Please refer to  FIG. 21 .  FIG. 21  is a schematic diagram illustrating a touch display panel according to an embodiment of the present invention. As shown in  FIG. 21 , the touch display panel  100  in this embodiment includes a display panel  80  and a touch panel  90 . The display panel  80  has a display surface  80 S; and the touch panel  90  is disposed on the display surface  80 S of the display panel  80 . The display panel  80  may include a liquid crystal display panel, an organic electroluminescent layer, an electrophoretic display panel, an electro-wetting display panel and any other kind of display panels. The touch panel  90  may be any one of the touch panels in the embodiments illustrated in  FIGS. 1-20  of the present invention, and will not be redundantly described. 
     To sum up, in the touch panel and touch display panel of the present invention, an insulation pattern is disposed between the patterned transparent layer and the decoration layer, and thus no transparent conductive material remains after the transparent conductive material has been etched to form the first patterned transparent sensing layer  21 —therefore, the risk of a short circuit is reduced. Moreover, the insulation pattern can be formed of the same patterned insulation layer as the insulation pattern of the touch sensing device, and no extra mask is required. 
     Those skilled in the art will readily observe that numerous modifications and alterations of the device and method may be made while retaining the teachings of the invention. Accordingly, the above disclosure should be construed as limited only by the metes and bounds of the appended claims.