CN112639699A

CN112639699A - Touch panel and touch display device

Info

Publication number: CN112639699A
Application number: CN201880094175.XA
Authority: CN
Inventors: 张亚楠; 李东霖; 林源城
Original assignee: Shenzhen Royole Technologies Co Ltd
Current assignee: Shenzhen Royole Technologies Co Ltd
Priority date: 2018-08-24
Filing date: 2018-08-24
Publication date: 2021-04-09
Also published as: WO2020037685A1

Abstract

The invention discloses a touch panel (10), which comprises a touch electrode (11) and a conductive structure (13), wherein the conductive structure (13) is connected with the touch electrode (11) in parallel, and the conductive structure (13) and the touch electrode (11) are matched for sensing an external touch signal together. The conductive structure (13) is connected with the touch electrode (11) in parallel, so that the resistance value of the touch panel (10) can be reduced, the load of the touch sensing circuit is reduced, and the touch performance is improved. A touch display device (100) having a touch panel (10) is also provided.

Description

Touch panel and touch display device

Technical Field

The present invention relates to the field of touch technologies, and in particular, to a touch panel and a touch display device.

Background

With the rapid development of touch display technology, touch screens have gradually spread throughout the lives of people. A capacitive touch panel, which is widely used at present, includes a touch electrode, and determines a position of contact by a point at which a capacitance is changed according to contact of a human finger or an object. In the conventional touch panel, materials such as Indium Tin Oxide (ITO) and zinc oxide (IZO) with large resistance are generally used as the touch electrode pattern, which causes a large load on a touch sensing circuit (sensor IC) and affects the touch performance.

Disclosure of Invention

To solve the above problems, an embodiment of the invention discloses a touch panel and a touch display device with improved touch performance.

A touch panel comprises a touch electrode and a conductive structure, wherein the touch electrode is connected with the conductive structure in parallel, and the conductive structure and the touch electrode are matched for sensing an external touch signal together.

A touch display device comprises the touch panel.

According to the touch panel and the touch display device provided by the invention, the conductive structure is connected with the touch electrode in parallel, so that the resistance value of the touch panel can be reduced, the load of the touch sensing circuit is reduced, and the touch performance is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic diagram of a pattern of a touch panel according to a first embodiment of the present invention.

Fig. 2 is a schematic diagram of a pattern of a touch electrode of a touch panel according to a first embodiment of the present invention.

Fig. 3 is a pattern diagram of a conductive structure of a touch panel according to a first embodiment of the invention.

Fig. 4 is an enlarged schematic view of a conductive element of the conductive structure shown in fig. 3.

Fig. 5 is a schematic view of a stacked structure of a touch panel according to a first embodiment of the invention.

Fig. 6 is a schematic diagram of a pattern of a touch panel according to a second embodiment of the present invention.

Fig. 7 is a schematic diagram of a pattern of a touch electrode of a touch panel according to a second embodiment of the present invention.

Fig. 8 is a pattern diagram of a conductive structure of a touch panel according to a second embodiment of the present invention.

Fig. 9 is an enlarged schematic view of region IX of the conductive structure shown in fig. 8.

Fig. 10 is a schematic view of a stacked structure of a touch panel according to a second embodiment of the invention.

Fig. 11 is a schematic diagram of a pattern of a touch panel according to a third embodiment of the present invention.

Fig. 12 is a schematic plan view of a first stacked layer of a touch panel according to a third embodiment of the invention.

Fig. 13 is a schematic plan view of a second stacked layer of a touch panel according to a third embodiment of the invention.

Fig. 14 is a schematic view of a stacked structure of a touch panel according to a third embodiment of the invention.

Fig. 15 is a schematic perspective view of a touch display device according to an embodiment of the invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 3, fig. 1 is a schematic view of a touch panel according to a first embodiment of the present invention, fig. 2 is a schematic view of a touch electrode of the touch panel according to the first embodiment of the present invention, and fig. 3 is a schematic view of a conductive structure of the touch panel according to the first embodiment of the present invention. The touch panel 10 includes a touch electrode 11 and a conductive structure 13. The touch electrode 11 is used to sense a contact of a finger of a person or an object to determine a position of the contact. The touch electrode 11 is electrically connected to a touch sensing circuit (not shown). The conductive structure 13 is connected in parallel with the touch electrode 11, and the conductive structure 13 and the touch electrode 11 are matched to sense an external touch signal together. The conductive structure 13 is connected in parallel with the touch electrode 11, so that the resistance of the touch panel 10 can be reduced, the load of a touch sensing circuit (not shown) can be reduced, and the touch performance can be improved. The touch signals include a direct touch signal and a floating touch signal.

The touch electrode 11 includes a plurality of touch units 113. The touch units 113 are arranged in an array corresponding to a plurality of position points. The number and size of the touch units 113 can be determined by the touch resolution of the touch panel 10. In this embodiment, the touch electrode 11 is made of Indium Tin Oxide (ITO), zinc Oxide (IZO), and the like, the touch electrode 11 is arranged in a single layer, and the plurality of touch units 113 are located in the same layer; each touch unit 11 is connected to the touch sensing circuit through an independent lead 115; in the touch display device, the touch electrode 11 may be formed by patterning a cathode disposed on the entire surface of the display layer, and the conductive structure 13 is added to reduce attenuation of a cathode drop (IR drop). It is understood that the touch electrode 11 may be made of other materials, such as nano silver wire.

In this embodiment, the sensing area of the conductive structure 13 is smaller than the sensing area of the touch electrode 11. The conductive structure 13 includes a plurality of conductive elements 133. The plurality of conductive units 133 are arranged in an array, and each conductive unit 133 is disposed corresponding to one touch unit 113 and connected in parallel. Please refer to fig. 4, which is an enlarged view of the conductive unit 133 of the conductive structure shown in fig. 3. The conductive units 133 are in a mesh shape. Each conductive unit 133 is connected in parallel to the corresponding touch unit 113 through the connection trace 135. In this embodiment, the conductive structure 13 is made of a material different from that of the touch electrode 11, and the conductive unit 133 is a metal mesh (metal mesh), and in other embodiments, the conductive unit 133 may be made of a non-metal conductive material. Preferably, the resistance of the conductive unit 133 is lower than that of the touch unit 113, and the resistance of the conductive structure 13 is lower than that of the touch electrode 11.

In the embodiment of the present application, the touch electrode 11 with a larger sensing area can effectively ensure the touch sensing amount of the touch panel 10, and the conductive structure 13 made of the metal mesh is connected in parallel with the touch electrode 11, so that the in-plane resistance of the touch panel 10 can be effectively reduced, and thus, the load of the touch sensing circuit can be reduced while the touch sensing amount of the touch panel 10 is ensured. In other embodiments, the conductive structure 13 is not limited to be made of a material different from that of the touch electrode 11.

The conductive unit 133 includes a plurality of first metal traces 1331 and a plurality of second metal traces 1333. The first metal trace 1331 extends in a first direction. The plurality of first metal traces 1331 are disposed at intervals along the second direction. The second metal trace 1333 extends along the second direction. The plurality of second metal traces 1333 are disposed at intervals along the first direction, the plurality of first metal traces 1331 are electrically connected to the plurality of second metal traces 1333, and the first direction is different from the second direction. In this embodiment, the first direction and the second direction are perpendicular to each other.

More specifically, the number of the first metal traces 1331 is multiple, two of the first metal traces 1331 are taken as a group, the first metal traces 1331 in the same group are arranged at intervals of a first pitch along the second direction, and two adjacent groups of the first metal traces 1331 are arranged at intervals of a second pitch along the second direction; the number of the second metal traces 1333 is multiple, two of the second metal traces 1333 are taken as a group, the second metal traces 1333 in the same group are arranged at intervals of a third pitch along the first direction, two adjacent groups of the second metal traces 1333 are arranged at intervals of a fourth pitch along the first direction, and the four groups of the first metal traces 1331 and the four groups of the second metal traces 1333 are arranged in a crossing manner to form a substantially square grid structure. It is understood that the spacing between the first metal traces 1331 and the spacing between the second metal traces 1333 can be set as required.

In some embodiments, the first direction may be an extending direction of a long side of the touch panel 10, and the second direction may be an extending direction of a short side of the touch panel 10. In other embodiments, the first direction may also be an extending direction of a short side of the touch panel 10, and the second direction may be an extending direction of a long side of the touch panel 10. In the present application, different directions are distinguished only by the first direction and the second direction, and the first direction and the second direction are not limited to the specific directions described above.

Fig. 5 is a schematic stacked view of a touch panel according to a first embodiment of the invention. The touch panel 10 further includes a first insulating layer 15, a second insulating layer 17, and an encapsulation layer 19. The touch electrode 11, the first insulating layer 15, the conductive structure 13, the second insulating layer 17, and the package layer 19 are sequentially stacked. The first insulating layer 15 is located between the touch electrode 11 and the conductive structure 13, so that the touch electrode 11 is electrically isolated from the conductive structure 13. The first insulating layer 15 is provided with a plurality of through holes 151, and the touch electrode 11 and the conductive structure 13 are connected in parallel through the through holes 151. In some embodiments, the through hole 151 is penetrated by a connection trace 135, and the touch electrode 11 and the conductive structure 13 are electrically connected in parallel by the connection trace 135 in the through hole 151. In other embodiments, the through hole 135 may also be a conductive through hole, that is, the inner wall of the through hole 151 is coated with a conductive material, and the touch electrode 11 and the conductive structure 13 are electrically connected through the conductive through hole to be connected in parallel. The second insulating layer 17 is located between the encapsulation layer 19 and the conductive structure 13, such that the encapsulation layer 19 is electrically isolated from the conductive structure 13.

The through-holes 151 are positioned corresponding to the corner positions of the conductive units 133. A connection trace 135 is disposed at each of the four corners of each conductive unit 133, such that the connection trace 135 can connect the first metal trace 1331 and the second metal trace 1333 at the same time. Of course, in other embodiments, the position of the connection trace 135 may also vary according to actual requirements.

It is understood that the touch panel may be a built-in touch panel or an external touch panel.

In one embodiment, the touch panel 10 omits the encapsulation layer 19 and the second insulating layer 17.

In one embodiment, the encapsulation layer 19 is an insulating layer, the second insulating layer 17 is omitted from the touch panel 10, and the conductive structure 13 is located between the touch electrode 11 and the encapsulation layer 19.

It is understood that the pattern of the touch electrode 11 is not limited to the example shown in the embodiment of the present invention, and may be other patterns, for example, a five-pointed star frame; the pattern of the conductive structure 13 is not limited to the example of the embodiment of the present invention, and may be other patterns, for example, a five-pointed star frame.

Fig. 6 is a schematic view of a touch panel according to a second embodiment of the present invention. The touch panel 30 provided in the second embodiment has a structure similar to that of the touch panel 10 provided in the first embodiment. The touch panel 30 includes a touch electrode 31 and a conductive structure 33 connected in parallel. Referring to fig. 7, a schematic diagram of a touch electrode of a touch panel according to a second embodiment of the present invention is shown, where the touch panel 30 is different in that the touch electrode 31 includes a plurality of first touch units 311 and a plurality of second touch units 313, and the plurality of first touch units 311 and the plurality of second touch units 313 are disposed in different layers.

The plurality of first touch units 311 are arranged in a plurality of rows along a first direction and in a plurality of columns along a second direction perpendicular to the first direction to form an array distribution structure including a plurality of rows and a plurality of columns, and the first touch units 311 located in the same row are electrically connected to each other. The plurality of second touch units 313 are arranged in a plurality of rows along the second direction and a plurality of columns along the first direction to form an array distribution structure including a plurality of rows and a plurality of columns, and the second touch units 313 in the same column are electrically connected with each other.

The plurality of first touch units 311 constitute the first touch pattern 301, and the plurality of second touch units 313 constitute the second touch pattern 303. In other words, the touch electrode 31 includes a first touch pattern 301 and a second touch pattern 303 that are insulated from each other and are disposed in different layers. In this embodiment, the first touch pattern 301 is a sensing electrode, and the second touch pattern 303 is a driving electrode.

Fig. 8 is a schematic view of a conductive structure of a touch panel according to a second embodiment of the present invention. The conductive structure 33 is connected in parallel with the first touch pattern 301 and the second touch pattern 303. The conductive structure 33 includes a plurality of conductive elements 333 disposed in the same layer and insulated from each other. The plurality of conductive elements 333 are arranged in an array.

The conductive elements 333 are a metal mesh. Please refer to fig. 9, which is an enlarged view of the region IX of the conductive structure shown in fig. 8. The conductive unit 333 includes a first metal trace 3331, a second metal trace 3332, and a plurality of third metal traces 3333. The first metal trace 3331 extends along a first direction. The number of the first metal traces 3331 is multiple, and the multiple first metal traces 3331 are disposed at intervals along the second direction. The second metal trace 3332 extends along the second direction; the number of the second metal traces 3333 is multiple, and the multiple second metal traces 3332 are arranged at intervals along the second direction; the plurality of third metal traces 3333 are disposed obliquely with respect to the first direction or the second direction. The two first metal wirings 3331 are a group, the two groups of first metal wirings 3331 are arranged at intervals along the second direction, the two second metal wirings 3332 are a group, the two groups of second metal wirings 3332 are arranged at intervals along the first direction, the two groups of third metal wirings 3333 are a group, and the two groups of first metal wirings 3331, the two groups of second metal wirings 3332 and the two groups of third metal wirings 3333 are arranged in a crossed manner to form a first grid structure 3334 in a substantially triangular shape. Each conductive element 333 is formed of two first grid structures into a second grid structure having a substantially diamond shape. The first direction is different from the second direction.

Each conductive unit 333 is connected in parallel with the corresponding first touch unit 311 or second touch unit 313 through the connection trace 335. Preferably, the connection trace 335 is disposed at the intersection of the metal traces to achieve good electrical contact, for example, at the intersection of the first metal trace 3331, the second metal trace 3332 and the third metal trace 3333 (the vertex of the first grid structure 3334), or at the intersection of the first metal trace 3331 and the third metal trace 3333 (the bottom of the first grid structure 3334), or at the intersection of the first metal trace 3331 and the second metal trace 3332 (the middle of the first grid structure 3334), and so on.

The plurality of conductive elements 333 includes a plurality of first conductive elements 3335 and a plurality of second conductive elements 3337. The first conductive elements 3335 are arranged in a plurality of rows and columns in an array. Each of the first conductive units 3335 is disposed corresponding to one of the first touch units 311 and connected in parallel. The second conductive elements 3337 are arranged in a plurality of rows and columns in an array. The second conductive units 3337 are disposed corresponding to the second touch units 311 and connected in parallel.

The plurality of first conductive units 3335 constitute the first conductive patterns 305 corresponding to the first touch patterns 301, and the plurality of second conductive units 3337 constitute the second conductive patterns 307 corresponding to the second touch patterns 303.

Fig. 10 is a schematic view of a stacked structure of a touch panel according to a second embodiment of the present invention. The touch panel 30 further includes a first insulating layer 35 and a second insulating layer 37. The first insulating layer 35 is located between the first touch pattern 301 and the conductive structure 33, and the second insulating layer 37 is located between the conductive structure 33 and the second touch pattern 303.

The first insulating layer 35 and the second insulating layer 37 are both provided with through holes, the first touch unit 311 and the first conductive unit 3335 are connected in parallel through the through holes of the first insulating layer 35, and the second touch unit 313 and the second conductive unit 3337 are connected in parallel through the through holes of the second insulating layer 37. Preferably, the through holes are disposed corresponding to the crossing positions of the metal wires to achieve good electrical contact between the first touch unit 311 and the first conductive unit 3335, and between the second touch unit 313 and the second conductive unit 3337, for example, the through holes are disposed corresponding to the crossing positions of the first metal wire 3331, the second metal wire 3332, and the third metal wire 3333 (the vertex position of the first grid structure 3334), or corresponding to the crossing positions of the first metal wire 3331 and the third metal wire 3333 (the bottom position of the first grid structure 3334), or corresponding to the crossing positions of the first metal wire 3331 and the second metal wire 3332 (the middle position of the first grid structure 3334). It is understood that, in other embodiments, the through holes may be disposed at other positions, so as to achieve good electrical contact between the first touch unit 311 and the first conductive unit 3335, and between the second touch unit 313 and the second conductive unit 3337.

In the touch panel 30 provided in the second embodiment, the conductive structures 33, the first touch patterns 301, and the second touch patterns 303 are arranged in different layers, so that mutual influence is avoided, the performance of the touch panel 30 is ensured, and the touch panel 30 is convenient to manufacture.

Fig. 11 is a schematic view of a touch panel according to a third embodiment of the present invention. The touch panel 50 of the third embodiment has a similar structure to the touch panel 30 of the second embodiment, and the touch panel 50 includes a touch electrode 51 and a conductive structure 53 connected in parallel, except that the first conductive pattern 505 and the second conductive pattern 507 in the conductive structure 53 are disposed in different layers, the first conductive pattern 505 and the second touch pattern 503 are disposed in the same layer, and the second conductive pattern 507 and the first touch pattern 501 are disposed in the same layer.

Specifically, referring to fig. 12 and 13, fig. 12 is a schematic plan view of a first stacked layer of a touch panel according to a third embodiment of the present invention, and fig. 13 is a schematic plan view of a second stacked layer of the touch panel according to the third embodiment of the present invention. The second conductive pattern 507 and the first touch pattern 501 are disposed in the same layer to form a first stack layer 508, and the first conductive pattern 505 and the second touch pattern 503 are disposed in the same layer to form a second stack layer 509. The touch electrode 51 includes a plurality of first touch units 511 (shown in fig. 12) and a plurality of second touch units 513 (shown in fig. 13).

The plurality of first touch units 511 are arranged in an array form into a plurality of rows and a plurality of columns, and the first touch units 511 located in the same row are electrically connected with each other. The plurality of second touch units 513 are arranged in a plurality of rows and columns in an array manner, and the second touch units 513 in the same column are electrically connected with each other.

The plurality of first touch units 511 form the first touch pattern 501, and the plurality of second touch units 513 form the second touch pattern 503.

The conductive structure 53 includes a plurality of conductive elements 533. The plurality of conductive units 533 include a plurality of first conductive units 5331 (shown in fig. 13) and a plurality of second conductive units 5333 (shown in fig. 12). The plurality of first conductive units 5331 are arranged in an array in a plurality of rows and columns. Each of the first conductive units 5331 corresponds to one of the first touch units 511 and is connected in parallel. The second conductive units 5333 are arranged in a plurality of rows and columns in an array. The second conductive units 5333 are disposed corresponding to the second touch units 513 and connected in parallel.

The first conductive pattern 505 and the second conductive pattern 507 are arranged in different layers and are insulated from each other, the first conductive pattern 505 is connected in parallel with the first touch pattern 501, and the second conductive pattern 507 is connected in parallel with the second touch pattern 503. The first conductive pattern 505 is embedded in the second touch pattern 503, and the adjacent first conductive unit 5331 and the second touch unit 513 are spaced apart and insulated from each other. The second conductive patterns 507 are embedded in the first touch pattern 501, and the adjacent second conductive units 5333 and the first touch units 511 are spaced from each other and insulated from each other. The wiring of the second conductive pattern 507 and the wiring of the first touch pattern 501 are kept away from each other, and the second conductive pattern 507 and the first touch pattern 501 are insulated from each other. The wiring of the first conductive pattern 505 and the wiring of the second touch pattern 503 are kept away from each other, and the first conductive pattern 505 and the second touch pattern 503 are insulated from each other.

Fig. 14 is a schematic view of a stacked structure of a touch panel according to a third embodiment of the invention. The touch panel 50 further includes a first insulating layer 55, and the first insulating layer 55 is located between the first stacked layer 508 and the second stacked layer 509.

In the touch panel 50 provided in the third embodiment, since the second conductive pattern 507 and the first touch pattern 501 are disposed on the same layer, and the first conductive pattern 505 and the second touch pattern 503 are disposed on the same layer, the thickness of the touch panel 50 can be effectively reduced, which is beneficial to the development of thinning the touch panel 50.

The embodiment of the invention further provides a touch display device 100, and the touch display device 100 includes a touch panel 101 and a display layer 103 which are stacked. The touch panel 101 is one of the touch panels described in the above embodiments. Further, the touch electrodes in the touch panel 101 extend along a first direction and a second direction, the display layer 103 extends along the first direction and the second direction, and the touch electrodes are disposed on the display layer 103 in a full-surface manner, in other words, the distribution areas of the touch electrodes along the first direction and the second direction are substantially equal to the distribution areas of the display layer along the first direction and the second direction. The touch display device 100 may be a Liquid Crystal Display (LCD) device or an Organic Light-Emitting Diode (OLED) display device. In an embodiment, the touch electrode is formed by patterning a cathode of the display layer 103, and the attenuation of the cathode drop (IR drop) is reduced due to the addition of the conductive structure.

According to the touch panel and the touch display device provided by the embodiment of the invention, because the touch pattern is connected with the conductive structure in parallel, especially the self-contained touch screen can reduce the resistance value in the touch surface, thereby reducing the load of the touch sensing circuit, improving the touch efficiency and the touch effect, and being beneficial to the development of a large-size self-contained touch panel.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.

Claims

A touch panel is characterized by comprising a touch electrode and a conductive structure, wherein the touch electrode is connected with the conductive structure in parallel, and the conductive structure and the touch electrode are matched for sensing an external touch signal together.
The touch panel of claim 1, wherein the conductive structures are disposed in different layers from the touch electrodes.
The touch panel of claim 1, wherein a sensing area of the conductive structure is smaller than a sensing area of the touch electrode.
The touch panel of claim 1, wherein the conductive structure has a resistance less than a resistance of the touch electrode.
The touch panel of claim 1, further comprising a first insulating layer disposed between the touch electrode and the conductive structure, wherein the first insulating layer is provided with a through hole, and the touch electrode and the conductive structure are connected in parallel via the through hole.
The touch panel of claim 1, wherein the touch electrode comprises a plurality of touch units, the conductive structure comprises a plurality of conductive units, and each of the conductive units is disposed corresponding to one of the touch units and connected in parallel.
The touch panel of claim 6, wherein the conductive unit is a metal grid, the conductive unit includes a first metal trace and a second metal trace, the first metal trace extends along a first direction, the second metal trace extends along a second direction, the first metal trace is electrically connected to the second metal trace, and the first direction is different from the second direction.
The touch panel of claim 7, wherein the conductive unit further includes a third metal trace, the third metal trace is electrically connected to the first metal trace and the second metal trace, and the third metal trace is disposed obliquely with respect to the first direction and the second direction.
The touch panel of claim 6, wherein the touch units comprise a plurality of first touch units and a plurality of second touch units, the plurality of first touch units and the plurality of second touch units are arranged in different layers, the conductive units comprise a plurality of first conductive units and a plurality of second conductive units, each first conductive unit is arranged corresponding to one first touch unit and connected in parallel, each second conductive unit is arranged corresponding to one second touch unit and connected in parallel,

the plurality of first touch units form a first touch pattern, the plurality of second touch units form a second touch pattern, the plurality of first conductive units form a first conductive pattern, and the plurality of second conductive units form a second conductive pattern.
The touch panel of claim 9, wherein the first touch units are arranged in an array in rows and columns, the first touch units in a same row are electrically connected to each other, and the first conductive units are also arranged in an array in rows and columns.
The touch panel of claim 10, wherein the second touch units are arranged in an array in rows and columns, the second touch units in the same column are electrically connected to each other, and the second conductive units are also arranged in an array in rows and columns.
The touch panel of claim 9, wherein the first conductive pattern and the second conductive pattern of the conductive structure are disposed on the same layer, and the conductive structure is disposed on a different layer from the first touch pattern and the second touch pattern.
The touch panel of claim 12, wherein the conductive structure is located between the first touch pattern and the second touch pattern.
The touch panel of claim 13, further comprising a first insulating layer and a second insulating layer, wherein the first insulating layer is located between the first touch pattern and the conductive structure, the second insulating layer is located between the second touch pattern and the conductive structure, the first insulating layer and the second insulating layer are both provided with through holes, the first touch pattern and the first conductive pattern are connected in parallel through the through holes of the first insulating layer, and the second touch pattern and the second conductive pattern are connected in parallel through the through holes of the second insulating layer.
The touch panel of claim 9, wherein the second conductive pattern and the first touch pattern are disposed on the same layer to form a first stack layer, and the first conductive pattern and the second touch pattern are disposed on the same layer to form a second stack layer, and further comprising a first insulating layer disposed between the first stack layer and the second stack layer.
The touch panel of claim 15, wherein the first conductive pattern is embedded in the second touch pattern, adjacent first conductive units and adjacent second touch units are spaced apart and insulated from each other, the second conductive pattern is embedded in the first touch pattern, and adjacent second conductive units and adjacent first touch units are spaced apart and insulated from each other.
The touch panel of claim 1, further comprising an encapsulation layer, wherein the conductive structure is between the touch electrode and the encapsulation layer.
The touch panel of claim 17, further comprising a second insulating layer between the encapsulation layer and the conductive structure.
A touch display device, further comprising the touch panel according to any one of claims 1 to 18, and a display layer, wherein the touch panel and the display layer are stacked.
The touch display device of claim 19, wherein the touch electrode is formed by patterning a cathode of the display layer.