TW201741829A - Touch panel - Google Patents

Abstract

A touch panel includes a substrate, a patterned touch sensing layer, a patterned insulating layer and a patterned conducting layer. The patterned touch sensing layer disposes on the substrate, and the patterned touch sensing layer includes a plurality of touch sensing electrodes, wherein each of the touch sensing electrodes has a plurality of openings. The patterned insulating layer disposes on the touch sensing electrodes. The patterned conducting layer disposes on the substrate, and the patterned conducting layer includes at least one conducting electrode, wherein the conducting electrode electrically connects to the touch sensing electrodes, and a portion of the conducting electrode substantially covers the openings of the touch sensing electrodes which the conducting electrode electrically connects.

Description

Touch panel

The present invention relates to a touch panel, and more particularly to a touch panel that can increase the sensing area of a touch electrode.

In today's market for consumer electronics, portable electronic products such as smart phones, digital cameras, satellite navigation systems (GPS) and tablet PCs have been widely used. The touch panel replaces traditional input devices such as keyboards and mice as a human-machine data communication interface to reduce the size of electronic products.

According to different touch mechanisms, the touch panel mainly includes a capacitive touch panel, a resistive touch panel and an optical touch panel. The capacitive touch panel is a mainstream product of the current touch panel. However, when the touch electrode for sensing the touch signal in the capacitive touch panel is made of metal or a non-transparent conductive material with better conductivity, the touch electrode must be disposed along the periphery of the pixel. The reduction of the aperture ratio is reduced. Therefore, the area of the touch electrode is limited, and the shape is also limited to a grid shape, so that the sensing area of the touch electrode is reduced, thereby reducing the touch electrode for the finger or the stylus. The amount of time in which it affects the touch effect.

An object of the present invention is to provide a touch panel through which a conductive electrode electrically connected to a touch electrode is further disposed in a touch electrode of the touch panel to enhance a sensing area, so as to increase touch when touched. The amount of inductance of the control element.

An embodiment of the present invention provides a touch panel including a substrate, a patterned touch layer, a patterned insulating layer, and a patterned conductive layer. The patterned touch layer is disposed on the substrate, and the patterned touch layer includes a plurality of layers. a first touch electrode arranged in a first direction and a plurality of second touch electrodes arranged in a second direction, wherein each of the first touch electrodes has a plurality of first openings, and each of the second touch electrodes has a plurality of a second opening; a patterned insulating layer is disposed on the first touch electrode; the patterned conductive layer is disposed on the substrate, and the patterned conductive layer includes at least one conductive electrode, wherein at least one of the conductive electrode and the first touch electrode At least one of the one or the second touch electrode is electrically connected, and one of the conductive electrodes substantially covers at least one first opening corresponding to the first touch electrode electrically connected thereto or a second portion electrically connected thereto At least one second opening corresponding to the touch electrode.

The touch electrodes of the touch panel of the present invention are electrically connected to the conductive electrodes, and the conductive electrodes respectively cover the openings of the touch electrodes. Therefore, the touch electrodes and the conductive electrodes electrically connected thereto form a touch with a large sensing area. The series of electrodes improves the sensing area, thereby increasing the amount of sensing of the electrodes when the finger or the stylus is touched.

The present invention will be further understood by the following detailed description of the preferred embodiments of the invention, .

Please refer to FIG. 1 to FIG. 5 . FIG. 1 is a top view of the touch panel according to the first embodiment of the present invention, and FIG. 2 is an enlarged schematic view of a region T of FIG. 1 , and FIG. 2 is a schematic view of a patterned conductive layer, FIG. 4 is a cross-sectional view of the touch panel taken along line A-A' of FIG. 2, and FIG. 5 is a cross-sectional view taken along line B-B' of FIG. A schematic cross-sectional view of the touch panel is shown. As shown in FIG. 1 to FIG. 5 , the touch panel 100 of the present embodiment includes a substrate 110 , a patterned touch layer 130 , a patterned insulating layer 140 , and a patterned conductive layer 150 . The touch panel 100 may further include a patterned light shielding layer 120. The structure of the above components and the relative arrangement relationship with each other will be sequentially described below. The patterned light-shielding layer 120 of the touch panel 100 is disposed on the substrate 110 and defines a plurality of sub-pixel regions P. When the touch panel 100 is applied to the touch display panel, the sub-pixels defined by the patterned light-shielding layer 120 are defined. The area P can correspond to a sub-pixel of the display panel. The patterned touch layer 130 of the touch panel 100 is disposed on the substrate 110, and the patterned touch layer 130 includes a plurality of first touch electrodes 132 and a plurality of second touch electrodes 134, wherein the first touch electrodes 132 The second touch electrodes 134 are arranged along the second direction D2, and the first touch electrodes 132 are linear electrodes along the first embodiment. The second touch electrode 134 has a straight portion 134L and a branch portion 134B. The straight portion 134L extends in the first direction D1, and the branch portion 134B is disposed at both ends of the straight portion 134L and in the second direction D2 direction. The first touch electrode 132 extends and is adjacent to the first touch electrode 132. As shown in FIG. 1 , the branch portions 134B of the two ends extend in opposite directions respectively, so that the second touch electrode 134 appears as a curved electrode, because the first touch electrode 132 The second touch electrodes 134 are not connected to each other. Therefore, the straight portions 134L of the second touch electrodes 134 extend only before the first touch electrodes 132, that is, the second touch electrodes 134 are substantially located at two. Between the first touch electrodes 132 and, in addition, in the first side The second straight portion adjacent the touch electrode 134 on the Dl 134L example based completely overlap in the second direction D2, and therefore, the second electrode 134 arranged in an array of the touch on the touch panel 100. On the other hand, since the branching portion 134B of the second touch electrode 134 is adjacent to the first touch electrode 132, the sensing area of the second touch electrode 134 is increased, and the first touch electrode 132 and the second electrode are added. The amount of coupling between the touch electrodes 134 for the finger or the stylus further increases the amount of sensing during touch. In the embodiment, the second touch electrodes 134 have two branch portions 134B, and the branch portions 134B extend in the second direction D2 and are adjacent to the first touch electrodes 132 to form an H-type electrode. The first touch electrode 132 and the second touch electrode 134 of the present invention may be of any suitable shape and matched with each other for touch sensing. In addition, each of the first touch electrodes 132 has a plurality of first openings 132a, and each of the second touch electrodes 134 has a plurality of second openings 134a, and the first touch electrodes 132 and the second touch electrodes 134 respectively have a first An opening 132a and a second opening 134a are formed. Therefore, the first touch electrode 132 and the second touch electrode 134 are in a grid shape. It should be noted that the first opening 132a and the second opening 134a respectively correspond to the sub-pixel area P of the portion defined by the light shielding layer 120. Therefore, the sub-pixel regions P are not patterned by the touch layer 130. The sub-pixel area P corresponding to the first opening 132a and the second opening 134a is located in the first touch electrode 132 or the second touch electrode 134. In addition, it should be noted that since the first opening 132a and the second opening 134a have to correspond to the sub-pixel area P and do not affect the pixel aperture ratio of the sub-pixel area P, the first opening 132a and the second opening 134a are required. It is greater than or equal to the size of the sub-pixel area P, and the corresponding sub-pixel area P has to completely overlap with the first opening 132a or the second opening 134a, and the shapes of the first opening 132a and the second opening 134a are substantially The corresponding sub-pixel regions P have the same shape, such as a rectangle, a parallelogram, a circle, a polygon, an ellipse, a bend, etc., but are not limited thereto. In addition, in this embodiment, the material of the patterned touch layer 130 includes an opaque material having a lower resistance value such as metal, graphene, carbon nanotube or nano silver wire, wherein the metal may be copper, Silver, molybdenum, titanium, aluminum, gold or a laminate thereof, but not limited thereto.

The patterned insulating layer 140 of the touch panel 100 is disposed on the first touch electrode 132. In the embodiment, the patterned insulating layer 140 of the touch panel 100 is also disposed on the second touch electrode 134. The material of the patterned insulating layer 140 of this embodiment may be an inorganic transparent insulating material, such as cerium oxide (SiO ₂ ), cerium nitride (SiNx), or an organic transparent insulating material, such as a photoresist material, but not Limited.

The patterned conductive layer 150 of the touch panel 100 is disposed on the substrate 110, and the patterned conductive layer 150 includes a conductive electrode 151 and a bridge electrode 156, wherein the conductive electrode 151 and the first touch electrode 132 are one or the second touch One of the control electrodes 134 is electrically connected. In this embodiment, the conductive electrode 151 may include a first conductive electrode 152 , and the first conductive electrode 152 is electrically connected to one of the first touch electrodes 132 . In addition, in the embodiment, the first conductive electrodes 152 may be plural, and the first touch electrodes 132 are electrically connected to the plurality of first conductive electrodes 152, but are not limited thereto. In this embodiment, the conductive electrode 151 can selectively include the second conductive electrode 154, wherein the second conductive electrode 154 is electrically connected to one of the second touch electrodes 134. Similarly, in this embodiment, The second conductive electrode 154 can be electrically connected to the plurality of second conductive electrodes 154, but is not limited thereto. In a variant embodiment, each of the first touch electrodes 132 is electrically connected to the plurality of first conductive electrodes 152 , but each of the second touch electrodes 134 is electrically connected to only one second conductive electrode 154 . In another variation, the conductive electrode 151 includes only the second conductive electrode 154 electrically connected to the second touch electrode 134. On the other hand, the bridge electrode 156 is disposed and electrically connected between the second touch electrodes 134 adjacent in the first direction D1, so that the second touch electrodes 134 adjacent to each other in the first direction D1 are electrically connected to each other. The bridge electrode 156 is connected to the first touch electrode 132 and electrically connected to the second touch electrodes 134 disposed on two sides of the first touch electrode 132. In this embodiment, the bridge electrode 156 can correspond to the plurality of first openings 132a. Specifically, the bridge electrode 156 can overlap with the plurality of first openings 132a. In this arrangement, the resistance value of the bridge electrode 156 can be reduced. In order to avoid the loss of the touch signal, the bridge electrode 156 can also correspond to the plurality of second openings 134a and cover the corresponding second opening 134a to increase the contact between the bridge electrode 156 and the second touch electrode 134. The area, but not limited thereto, in a variant embodiment, the bridge electrode 156 may correspond to the plurality of first openings 132a, but not to the second opening 134a, and therefore, the bridge electrode 156 does not cover the second opening 134a, In another variation, none of the bridge electrodes 156 correspond to the first opening 132a and the second opening 134a. Specifically, the bridge electrode 156 does not overlap the first opening 132a and does not cover the second opening 134a, such as the bridge electrode 156. It may be a strip electrode or a lip-shaped electrode that does not overlap with the first opening 132a and does not cover the second opening 134a, but the shape is not limited thereto. In addition, in the present embodiment, the bridge electrode 156 is disposed between the linear portion 134L of the second touch electrode 134 adjacent to the first direction D1, but is not limited thereto. In addition, in this embodiment, the material of the patterned conductive layer 150 may be a transparent conductive material, and the transparent conductive material includes indium tin oxide (ITO) or indium zinc oxide (IZO), but is not limited thereto.

In addition, a portion of the conductive electrode 151 substantially covers at least one first opening 132a corresponding to the first touch electrode 132 electrically connected thereto or at least one second opening corresponding to the second touch electrode 134 electrically connected thereto 134a, in this embodiment, a portion of the first conductive electrode 152 substantially covers a plurality of first openings 132a corresponding to the first touch electrodes 132 electrically connected thereto, and similarly, a portion of the second conductive electrodes 154 The plurality of second openings 134a corresponding to the second touch electrodes 134 electrically connected thereto are substantially covered, but a part of the first touch electrodes 132 are required to be spanned by the bridge electrodes 156, and a part of the first openings The first conductive electrode 152 does not cover all of the first openings 132a, and the second conductive electrode 154 does not cover all of the second openings 134a, but is not limited thereto. In a variant embodiment, when the bridge electrode 156 does not correspond to the first opening 132a and the second opening 134a, the first conductive electrode 152 may cover part or all of the first opening 132a, and the second conductive electrode 15 4 may cover some or all of the second openings 134a. It should be noted that, since the first opening 132a and the second opening 134a correspond to the sub-pixel area P, when the touch panel 100 is applied to the touch display panel, if the patterned conductive layer 150 is a transparent conductive layer, In a state where the first conductive electrode 152 and the second conductive electrode 154 cover the first opening 132a and the second opening 134a, respectively, the first conductive electrode 152 and the second conductive electrode 154 do not affect the pixel of the sub-pixel region P. Opening ratio. When the first conductive electrode 152 and the second conductive electrode 154 cover the opening and are electrically connected to the first touch electrode 132 and the second touch electrode 134 respectively, the first conductive electrode 152 and the second conductive electrode 154 may be used. Increase the area of the sensing area, which in turn increases the amount of finger or stylus. In addition, it should be noted that the increased coverage area of the first conductive electrode 152 and the second conductive electrode 154 increases, so that the increased sensing area is relatively increased. Therefore, in this embodiment, the first conductive electrode 152 can be The first opening 132a is completely covered, and the second conductive electrode 154 can completely cover the second opening 134a, so that the amount of increase in the sensing area is maximized, but not limited thereto. In a variant embodiment, the first conductive electrode 152 and the first The second conductive electrode 154 may also cover only a portion of the opening, for example, the first conductive electrode 152 covers only half of the first opening 132a, and/or the second conductive electrode 154 covers only half of the second opening 134a. In addition, the first conductive electrode 152 and the second conductive electrode 154 may determine the number of the first opening 132a and the second opening 134a covered according to the amount of the sensing area to be increased. In this embodiment, in addition to the bridge electrode The first conductive electrode 152 covers all the other first openings 132a, and the second conductive electrode 154 covers the second opening 134a of the portion, but not limited thereto, except for the first opening 132a and the second opening 134a. In a variant embodiment, the second conductive electrode 154 may cover all of the other second openings 134a.

In this embodiment, the first touch electrode 132 and the first conductive electrode 152 can form a first touch electrode series, and the second touch electrode 134, the second conductive electrode 154, and the bridge electrode 156 can form a second touch. When the touch panel 100 of the present invention is a mutual-capacitive touch panel, the first touch electrode string can be a driving electrode string for providing a touch signal, and the second touch electrode string The column can be a receiving electrode string for receiving a touch signal, but not limited thereto, the touch panel 100 of the present invention can also be applied to a self-capacitive touch panel.

In addition, the patterned insulating layer 140 is used to electrically insulate the first touch electrode series from the second touch electrode series. Therefore, the first touch electrode serial array and the second touch electrode serial line are both disposed. There is a patterned insulating layer 140. For example, in the embodiment, the second touch electrode is arranged in the bridge electrode 156 and overlaps the first touch electrode 132 of the first touch electrode series, and the bridge electrode 156 corresponds to the plurality of first openings. 132a, therefore, the patterned insulating layer 140 is disposed on a portion of the first touch electrode 132 and covers the first opening 132a where the first touch electrode 132 meets the bridge electrode 156, and the bridge electrode 156 is partially disposed in the pattern. The insulating layer 140 is disposed across the first touch electrode 132 to connect the second touch electrodes 134 adjacent in the first direction D1, as shown in FIG. 5. On the other hand, in the process of forming the patterned insulating layer 140, an insulating layer is formed on the patterned touch layer 130, so that the conductive electrode 151 and the first touch electrode 132 of the patterned touch layer 130 are The second touch electrodes 134 are electrically connected, and the insulating layer covering the first touch electrodes 132 and the second touch electrodes 134 is removed by a patterning process (such as a yellow light process), and the first touch is exposed. The control electrode 132 and the second touch electrode 134 are configured such that the first conductive electrode 152 of the conductive electrode 151 is electrically connected to the first touch electrode 132, and the second conductive electrode 154 of the conductive electrode 151 can be connected to the second contact The control electrode 134 is electrically connected. In this embodiment, the patterning process also covers the insulating layer covering the first opening 132a of the first conductive electrode 152 and the second opening 134a of the second conductive electrode 154, and exposes the substrate 110. Therefore, the first touch electrode 132 on the sidewall of the first opening 132a and the second touch electrode 134 on the sidewall of the second opening 134a are exposed, so that the first conductive electrode 152 and the second conductive electrode 154 are respectively filled in An opening 132a and a second opening 134a further increase a contact area between the first touch electrode 132 and the first conductive electrode 152 and a contact area between the second touch electrode 134 and the second conductive electrode 154. Further, in the present embodiment, a portion of the first opening 132a and a portion of the second opening 134a are covered by the patterned insulating layer 140. However, in other embodiments, only a portion of the first opening 132a may be covered by the patterned insulating layer 140.

Please refer to FIG. 6 , which illustrates a cross-sectional structure of a touch display panel according to an embodiment of the invention. As shown in FIG. 6 , the touch display panel 10 of the present embodiment includes a first substrate 12 , a display medium layer 14 , and a second substrate 16 . The first substrate 12 can be an array substrate, and the second substrate 16 can be a touch. Panel 100. In this embodiment, the touch component is disposed on the inner side of the display substrate 14 so that the touch component is located inside the touch display panel 10 , so that the touch display panel 10 can be in-line (in -cell) Touch display panel, but not limited to this. In a variant embodiment, the touch panel 100 can also be disposed on the display panel to form an out-cell touch display panel, or the touch component can be formed on the outer side of the second substrate 16 to form an integrated (on-cell) touch display panel.

As shown in the above, the first touch electrode 132 of the touch panel 100 of the present embodiment is electrically connected to the first conductive electrode 152, and the first conductive electrode 152 covers the first opening 132a of the first touch electrode 132. The second touch electrode 134 is electrically connected to the second conductive electrode 154, and the second conductive electrode 154 covers the second opening 134a of the second touch electrode 134. Therefore, the first touch electrode 132 and the first conductive electrode 152 form a The sensing area is larger than the first touch electrode serial of the first touch electrode 132, and the second touch electrode 134, the second conductive electrode 154, and the bridge electrode 156 form a sensing area larger than the second touch electrode 134. The series of touch electrodes improves the sensing area, thereby increasing the amount of sensing of the touch electrodes when the finger or the stylus is touched. In addition, the arrangement of the first conductive electrodes 152 can also reduce the resistance of the first touch electrode series. Similarly, the resistance of the second touch electrode series can be reduced by the arrangement of the second conductive electrodes 154.

The touch panel of the present invention is not limited to the above embodiment. The touch panel of the other preferred embodiments of the present invention will be sequentially described below, and the same symbols are used to denote the same components in the following embodiments in order to facilitate the comparison of the different embodiments and simplify the description. The differences between the embodiments will be mainly described, and the repeated parts will not be described again.

Please refer to FIG. 7. FIG. 7 is a schematic top view of the touch panel according to the first modified embodiment of the present invention, wherein the area illustrated in FIG. 7 may correspond to the area T of FIG. As shown in FIG. 7 , the difference between the touch panel 100 ′ of the present embodiment and the first embodiment is that the modified embodiment may not have the patterned light shielding layer 120 , so the touch panel 100 ′ of the modified embodiment. It can be applied to an external touch display panel or an integrated touch display panel. It should be noted that when the touch panel 100 ′ of the embodiment of the present invention is applied to an external touch display panel or an integrated touch display panel, the first touch electrode 132 and the second touch electrode 134 can be used. a low-reflective metal material or a non-reflective conductive material, and examples of the low-reflective metal material are chromium, tungsten, molybdenum, vanadium, niobium, nickel, niobium, copper, compounds thereof, compounds with each other or The oxide layer is additionally provided with a non-reflective modifying layer and overlaps with the first touch electrode 132 and the second touch electrode 134 in a vertical projection direction to prevent the external light source from affecting the display of the touch display panel. .

Please refer to FIG. 8 , which illustrates a cross-sectional view of a touch panel according to a second modified embodiment of the present invention. As shown in FIG. 8 , the difference between the touch panel 100 ′′ of the modified embodiment and the first embodiment is that the first conductive electrode 152 of the modified embodiment covers only one first opening 132 a and the second conductive electrode. The first touch electrodes 132 of the touch panel 100 ′ of the embodiment of the present invention are electrically connected to the first conductive electrodes 152 in comparison with the first embodiment. The second touch electrodes 134 can be electrically connected to the second conductive electrodes 154 in comparison with the first embodiment. That is, one of the first touch electrodes 132 can be electrically connected to at least two. Between adjacent first conductive electrodes 152, one of the second touch electrodes 134 can be electrically connected between at least two adjacent second conductive electrodes 154. In this embodiment, the first conductive electrode 152 covers only the single first opening 132a, and the second conductive electrode 154 covers only the single second opening 134a. Therefore, the first conductive electrode 152 and the second conductive electrode 154 correspond to the first time. Pixel area P. It should be noted that, in the process of patterning the insulating layer 140, the opening size of the patterned insulating layer 140 is greater than or equal to the opening size of the first opening 132a and the second opening 134a, so that the subsequently formed first conductive electrode 152 The second conductive electrodes 154 respectively cover the single first opening 132a and the single second opening 134a, and are separated from each other by the patterned insulating layer 140.

Please refer to FIG. 9. FIG. 9 is a cross-sectional view showing a touch panel according to a second embodiment of the present invention. As shown in FIG. 9 , the difference between the touch panel 200 of the present embodiment and the first embodiment is that the patterned insulating layer 140 of the present embodiment is disposed on the substrate 110 and the first conductive electrode 152 of the patterned conductive layer 150 . Or the second conductive electrode 152, in other words, the first conductive electrode 152 and the second conductive electrode 154 are disposed on the patterned insulating layer 140, but the first conductive electrode 152 is still electrically connected to the first touch electrode 132. The second conductive electrode 154 is still electrically connected to the second touch electrode 134 . In detail, in the patterning process for forming the patterned insulating layer 140, the patterning process covers the first opening 132a corresponding to the first conductive electrode 152 and the second opening 134a corresponding to the second conductive electrode 154. The layer is removed, but the substrate 110 is not exposed, and after the process of patterning the insulating layer 140 is completed, the first conductive electrode 152 and the second conductive electrode 154 of the conductive electrode 151 of the patterned conductive layer 150 are disposed on the first layer. A touch electrode 132 and a second touch electrode 134 are filled in the opening. In this embodiment, only the first touch electrode 132 of the sidewall of the first opening 132a and the second touch electrode 134 of the sidewall of the second opening 134a are exposed, but not limited thereto. In a variant embodiment, The first touch electrode 132 on the sidewall of the first opening 132a and the second touch electrode 134 on the sidewall of the second opening 134a may be completely exposed. An advantage of this embodiment is that the patterned insulating layer 140 does not have to be completely etched, so that the effects of the present invention can be achieved under the same conditions of reduced process time and cost.

Please refer to FIG. 10 to FIG. 11 , FIG. 10 is a top view of the touch panel according to the third embodiment of the present invention, and FIG. 11 is a touch diagram taken along line C-C′ of FIG. 10 . A schematic cross-sectional view of the panel, wherein the area illustrated in FIG. 10 may correspond to the area T of FIG. As shown in FIG. 10 to FIG. 11 , the difference between the touch panel 300 of the present embodiment and the first embodiment is that the patterned conductive layer 150 of the embodiment further includes a plurality of dummy objects 158 , wherein the dummy objects 158 . The first opening 132a and the second opening 134a are not substantially covered, and the dummy 158 is electrically insulated from the first conductive electrode 152 and the second conductive electrode 154. To be precise, the sub-pixel area P defined by the patterned light shielding layer 120 is The portion of the patterned touch layer 130 in the present embodiment does not correspond to the first touch electrode 132 and the second touch electrode 134 in the present embodiment. The control electrode 132 and the sub-pixel area P of the second touch electrode 134. In addition, in the embodiment, each of the dummy objects 158 corresponds to only a single sub-pixel area P, but is not limited thereto. In the modified embodiment, each of the dummy objects 158 may correspond to a plurality of sub-pixel areas P. In the preferred embodiment, the number of sub-pixel regions P corresponding to the dummy 158 may be the same as the number of sub-pixel regions P corresponding to the first conductive electrode 152 and the second conductive electrode 154, for example, the dummy 158, the first A conductive electrode 152 and a second conductive electrode 154 all correspond to a single sub-pixel region P. In this embodiment, since the dummy 158 is additionally disposed, the sub-pixel regions P are all corresponding to the patterned conductive layer 150. Therefore, when the touch panel 300 of the present invention is applied to the touch display panel, the touch panel 300 is first. The touch electrode and the second touch electrode are not easily perceived, thereby reducing the visibility of the touch electrode.

Referring to FIG. 12, FIG. 12 is a cross-sectional view showing a touch panel according to a fourth embodiment of the present invention. As shown in FIG. 12, the difference between the touch panel 400 of the present embodiment and the third embodiment is that the touch panel 400 of the embodiment further includes a color filter layer 160, wherein the color filter layer 160 is disposed on the substrate. 110, precisely, the color filter layer 160 is disposed between the substrate 110 and the patterned conductive layer 150. It should be noted that, since the color setting of the color filter layer 160 corresponds to the sub-pixel area P in the touch panel 400, the dummy 158 overlaps with the color filter layer 160. In this embodiment, due to the dummy The object 158 corresponds to a single sub-pixel area P, so the imaginary object 158 only corresponds to a single color tone of the color filter layer 160, but is not limited thereto. In the modified embodiment, the dummy object 158 corresponds to a plurality of sub-pixel regions P. And corresponding to the complex color tones of the color filter layer 160, the plurality of colors of the color filter layer 160 are, for example, red, green, and blue, respectively. In addition, in the embodiment, the touch panel 400 may further include a protective layer 170 , and the protective layer 170 covers the patterned insulating layer 140 and the patterned conductive layer 150 , so that the structure of the touch panel 400 is protected.

Please refer to FIG. 13, which is a cross-sectional view of a touch panel according to a fifth embodiment of the present invention. As shown in FIG. 13 , the difference between the touch panel 500 of the present embodiment and the fifth embodiment is that the color filter layer 160 is disposed between the protective layer 170 and the patterned conductive layer 150 .

Please refer to FIG. 14, which is a cross-sectional view of a touch panel according to a sixth embodiment of the present invention. As shown in FIG. 14, the difference between the touch panel 600 of the present embodiment and the sixth embodiment is that the protective layer 170 is disposed between the patterned conductive layer 150 and the color filter layer 160, that is, the color filter. The light layer 160 is disposed on the protective layer 170.

In summary, the touch electrodes of the touch panel of the present invention are electrically connected to the conductive electrodes, and the conductive electrodes respectively cover the openings of the touch electrodes. Therefore, the touch electrodes form a sensing area with the conductive electrodes electrically connected thereto. The larger series of touch electrodes improves the sensing area, thereby increasing the amount of sensing of the electrodes when the finger or stylus is touched. The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

10‧‧‧Touch display panel
12‧‧‧First substrate
14‧‧‧Display media layer
16‧‧‧second substrate
100, 100', 100'', 200, 300, 400, 500, 600‧‧‧ touch panels
110‧‧‧Substrate
120‧‧‧ patterned shade layer
130‧‧‧ patterned touch layer
132‧‧‧First touch electrode
132a‧‧‧first opening
134‧‧‧second touch electrode
134a‧‧‧ second opening
134B‧‧‧ Branch
134L‧‧‧Linear Department
140‧‧‧patterned insulation
150‧‧‧ patterned conductive layer
151‧‧‧Conductive electrode
152‧‧‧First conductive electrode
154‧‧‧Second conductive electrode
156‧‧‧Bridge electrode
158‧‧‧dummy
160‧‧‧Color filter layer
170‧‧‧Protective layer
D1‧‧‧ first direction
D2‧‧‧ second direction
P‧‧‧Sub-picture area
T‧‧‧ area

FIG. 1 is a schematic top view of a touch panel according to a first embodiment of the present invention. Fig. 2 is an enlarged schematic view showing a region T of Fig. 1. Figure 3 is a schematic view of Figure 2 without a patterned conductive layer. Fig. 4 is a cross-sectional view showing the touch panel taken along the line A-A' of Fig. 2. Fig. 5 is a cross-sectional view showing the touch panel taken along line B-B' of Fig. 2. FIG. 6 is a cross-sectional structural diagram of a touch display panel according to an embodiment of the invention. FIG. 7 is a top view of the touch panel according to the first modified embodiment of the present invention. FIG. 8 is a cross-sectional view showing a touch panel according to a second modified embodiment of the present invention. FIG. 9 is a cross-sectional view showing a touch panel according to a second embodiment of the present invention. FIG. 10 is a top plan view of a touch panel according to a third embodiment of the present invention. Figure 11 is a cross-sectional view of the touch panel taken along line C-C' of Figure 10. FIG. 12 is a cross-sectional view showing a touch panel according to a fourth embodiment of the present invention. FIG. 13 is a cross-sectional view showing a touch panel according to a fifth embodiment of the present invention. FIG. 14 is a cross-sectional view showing a touch panel according to a sixth embodiment of the present invention.

100‧‧‧ touch panel

110‧‧‧Substrate

120‧‧‧ patterned shade layer

130‧‧‧ patterned touch layer

132‧‧‧First touch electrode

132a‧‧‧first opening

134‧‧‧second touch electrode

134a‧‧‧ second opening

134B‧‧‧ Branch

140‧‧‧patterned insulation

150‧‧‧ patterned conductive layer

151‧‧‧Conductive electrode

152‧‧‧First conductive electrode

154‧‧‧Second conductive electrode

P‧‧‧Sub-picture area

Claims (17)

A touch panel includes: a substrate; a patterned touch layer disposed on the substrate, the patterned touch layer comprising: a plurality of first touch electrodes arranged along a first direction, wherein each The first touch electrode has a plurality of first openings; and the plurality of second touch electrodes are arranged along a second direction, wherein each of the second touch electrodes has a plurality of second openings; a patterned insulating layer, Provided on the first touch electrodes; and a patterned conductive layer disposed on the substrate, the patterned conductive layer comprising: at least one conductive electrode, the conductive electrode and the first touch electrodes One of the second touch electrodes is electrically connected, and one of the conductive electrodes substantially covers at least one of the first openings corresponding to the first touch electrodes electrically connected thereto or is electrically connected thereto Connect at least one of the second openings corresponding to the second touch electrode. The touch panel of claim 1, wherein the material of the conductive electrode comprises indium tin oxide or indium zinc oxide. The touch panel of claim 1, wherein one of the first touch electrodes is electrically connected between at least two adjacent conductive electrodes. The touch panel of claim 1, wherein one of the second touch electrodes is electrically connected between at least two adjacent conductive electrodes. The touch panel of claim 1, wherein the patterned conductive layer further comprises a bridge electrode disposed between the two adjacent touch electrodes. The touch panel of claim 5, wherein the bridge electrode portion is disposed on the patterned insulating layer. The touch panel of claim 1, wherein a portion of the patterned insulating layer is disposed between the substrate and the at least one conductive electrode. The touch panel of claim 1, wherein the patterned conductive layer further comprises at least one dummy, the dummy substantially does not cover the first openings and the second openings, and the dummy and the at least A conductive electrode is electrically insulated. The touch panel of claim 1, further comprising a color filter layer disposed on the substrate. The touch panel of claim 9, wherein the patterned conductive layer further comprises at least one dummy, the dummy substantially does not cover the first openings and the second openings, and the dummy is associated with the touch panel The color filter layers overlap. The touch panel of claim 9, wherein the color filter layer is disposed between the substrate and the patterned conductive layer. The touch panel of claim 9, wherein the patterned conductive layer is disposed between the color filter layer and the substrate. The touch panel of claim 9, wherein the touch panel further comprises a protective layer, and the protective layer is disposed between the patterned conductive layer and the color filter layer. The touch panel of claim 9, wherein the touch panel further comprises a protective layer, and the protective layer is disposed on the color filter layer. The touch panel of claim 1, wherein the touch panel is a mutual capacitive touch panel. The touch panel of claim 1, wherein the material of the patterned touch layer comprises metal, graphene, carbon nanotube or nano silver wire. The touch panel of claim 16, wherein the metal comprises copper, silver, molybdenum, titanium, aluminum, gold or a laminate thereof.