Touch display panel and touch display device

Abstract

The present application relates to a touch display panel and a touch display device, wherein the touch display panel includes a display area and a peripheral wiring area, wherein: the display area includes a plurality of touch areas arranged in an array, each touch area is provided with a corresponding touch electrode and a first wiring, each touch electrode is electrically connected to the corresponding first wiring, and each first wiring is electrically connected to the peripheral wiring area; at least one touch area is a first touch area, each first touch area is provided with at least one redundant electrode and at least one second wiring, and each redundant electrode is electrically connected to the corresponding second wiring. The present application can improve the uniformity of each touch area by providing at least one redundant electrode and at least one second wiring in each first touch area, so that each redundant electrode is electrically connected to the corresponding second wiring, thereby reducing the probability of abnormal visibility of the touch display panel and improving the touch performance of the touch display panel.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a touch display panel and a touch display device. Background Art

[0002] The current display technologies mainly include Liquid Crystal Display (LCD), Plasma Display Panel (PDP), Organic Light Emitting Diode (OLED), and Active-Matrix Organic Light Emitting Diode (AMOLED). Among the above-mentioned display modes, the touch function has become one of the standard configurations of most display devices and is widely used in car-mounted, mobile phones, tablets, computers and TV products.

[0003] Capacitive touch screens are usually designed based on self-capacitance. Capacitive touch screens sense the capacitance between a finger or stylus and the touch screen, and determine whether the touch screen is touched based on the electrical signal formed by the capacitance change before and after the touch, thereby determining the specific location of the touch and realizing the touch function.

[0004] However, in the related art, the touch sensing block and the first wiring are implemented by using different layers of metal, and the touch sensing block and the first wiring adopt a double wiring method, and the first wiring and the touch sensing block are connected one by one through the touch connection holes. On this basis, there is only one set of touch connection holes in the same touch sensing block to electrically connect the touch sensing block and the first wiring, the touch connection holes on the touch sensing blocks in different rows are distributed in different columns, and the first wiring has different lengths, which will cause abnormal visibility of the touch signal. Summary of the invention

[0005] In view of this, the present application proposes a touch display panel and a touch display device, which can improve the uniformity of each touch area, thereby reducing the probability of abnormal visibility of the touch display panel and improving the touch performance of the touch display panel.

[0006] According to one aspect of the present application, a touch display panel is provided, which includes a display area and a peripheral wiring area, and the display area is electrically connected to the peripheral wiring area, wherein: the display area includes a plurality of touch areas arranged in an array, each of the touch areas is provided with a corresponding touch electrode and a first wiring, each of the touch electrodes is electrically connected to the corresponding first wiring, and each of the first wirings is electrically connected to the peripheral wiring area; at least one of the touch areas is a first touch area, each of the first touch areas is provided with at least one redundant electrode and at least one second wiring, and each of the redundant electrodes is electrically connected to the corresponding second wiring.

[0007] Furthermore, each of the redundant electrodes is insulated from any of the touch electrodes, and any two of the redundant electrodes are insulated from each other.

[0008] Furthermore, each of the second routing lines is insulated from any of the first routing lines, and any two of the second routing lines are insulated from each other.

[0009] Furthermore, each of the touch electrodes is correspondingly provided with at least one first connection hole, and each of the touch electrodes is electrically connected to the corresponding first wiring through the at least one first connection hole.

[0010] Furthermore, each of the redundant electrodes is correspondingly provided with at least one second connection hole, and each of the redundant electrodes is electrically connected to the corresponding second wiring through the at least one second connection hole.

[0011] Furthermore, the redundant electrodes of each of the first touch control areas are arranged in parallel with the touch control electrodes of the first touch control area, and the coordinates of the redundant electrodes of each of the first touch control areas along the column direction are the same as the coordinates of the touch control electrodes of the first touch control area along the column direction.

[0012] Further, at least one of the touch control areas is a second touch control area, each of the second touch control areas is provided with at least one resistance reduction electrode, and the at least one resistance reduction electrode is electrically connected to the corresponding first wiring.

[0013] Furthermore, each of the resistance reduction electrodes is correspondingly provided with at least one third connection hole, and each of the resistance reduction electrodes is electrically connected to the corresponding first wiring through the at least one third connection hole.

[0014] Furthermore, the display area is a stacked structure, wherein: all redundant electrodes, resistance reduction electrodes and touch electrodes are located in the same layer, and all second wirings and first wirings are located in the same layer.

[0015] According to another aspect of the present application, a touch display device is provided. The touch display device includes the touch display panel and a touch circuit. The touch display panel is electrically connected to the touch circuit.

[0016] By setting at least one of the touch areas as a first touch area, and providing at least one redundant electrode and at least one second wiring in each of the first touch areas, so that each of the redundant electrodes is electrically connected to the corresponding second wiring, according to various aspects of the present application, the uniformity of each touch area can be improved, thereby reducing the probability of abnormal visibility of the touch display panel and improving the touch performance of the touch display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The technical solution and other beneficial effects of the present application will be made apparent by describing in detail the specific implementation methods of the present application in conjunction with the accompanying drawings.

[0018] Figure 1 A schematic diagram showing a touch display panel in the related art.

[0019] Figure 2 A partial cross-sectional view of a touch display panel in the related art is shown.

[0020] Figure 3 A schematic diagram showing a touch display panel according to an embodiment of the present application is shown.

[0021] Figure 4 A partial cross-sectional view of a touch display panel according to an embodiment of the present application is shown.

[0022] Figure 5 A schematic diagram showing a touch display panel according to an embodiment of the present application is shown.

[0023] Figure 6 A partial cross-sectional view of a touch display panel according to an embodiment of the present application is shown.

[0024] Figure 7 A schematic diagram showing a touch display panel according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0026] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0027] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or settings discussed in itself. In addition, the examples of various specific processes and materials provided by the present application, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials. In some instances, methods, means, components and circuits well known to those skilled in the art are not described in detail, so as to highlight the subject matter of the present application.

[0029] Figure 1 A schematic diagram showing a touch display panel in the related art.

[0030] like Figure 1As shown, the touch display panel in the related art includes a display area 11 and a peripheral wiring area 12. The display area 11 is electrically connected to the peripheral wiring area 12. The display area 11 is provided with a plurality of touch sensing blocks arranged in an array, and the peripheral wiring area 12 is provided with a touch circuit.

[0031] Taking the top row of touch sensing blocks as the first row of touch sensing blocks and the leftmost column of touch sensing blocks as the first column of touch sensing blocks as an example, the touch sensing block 13 may be the touch sensing block located in the third row and second column, which is recorded as touch sensing block (3,2). Other embodiments in the present application may also have similar descriptions. Figure 1 In the embodiment, each touch sensing block is provided with a first wiring. For example, a touch sensing block 13 is provided with a first wiring 14, and the first wiring 14 is electrically connected to the corresponding touch sensing block through the connection hole 15. The plurality of first wirings are wound in the peripheral wiring area 12 and are electrically connected to the touch circuits respectively to ensure the realization of the touch function.

[0032] Figure 2 A partial cross-sectional view of a touch display panel in the related art is shown.

[0033] like Figure 2 As shown, in the related art, the touch sensing block 13 is electrically connected to the corresponding first wiring 14 through three connection holes, and the connection hole 15 is the connection hole located in the middle. On the right side of the first wiring 14, wirings corresponding to other touch sensing blocks can also be arranged, for example, the first wiring 16 is the first wiring corresponding to the touch sensing block (1, 2). Figure 2 AA' in the figure) cuts open the touch sensing block 13 to obtain Figure 2 The lower part shows a partial cross-sectional view corresponding to the touch sensing block 13 .

[0034] The array driving layer 25 (i.e., TFT layer) is arranged at the bottom, and the light emitting layer 24 (i.e., OLED layer) is arranged on one side of the array driving layer 25. A thin film encapsulation layer 23 (i.e., TFE layer) is arranged on the side of the light emitting layer 24 away from the array driving layer 25, and a plurality of traces, such as a first trace 14 and a first trace 16, are arranged on the side of the thin film encapsulation layer 23 away from the array driving layer 25. The inorganic layer 22 covers the plurality of traces. A touch electrode 21 is arranged on the side of the inorganic layer 22 away from the array driving layer 25, and the touch electrode 21 is electrically connected to the corresponding first trace through the connection hole 15.

[0035] Combination Figure 1 and Figure 2In the related art, the touch sensing block and the first wiring are implemented by using different layers of metal and are connected one by one through connection holes. A group of touch connection holes is set corresponding to a single touch sensing block, and the touch sensing block is electrically connected to the corresponding first wiring. The connection holes corresponding to the touch sensing blocks in different rows are distributed in different columns, and the first wirings have different lengths, resulting in low touch uniformity of the touch screen, which in turn leads to abnormal visibility of the touch screen.

[0036] In view of this, the present application proposes a touch display panel, which includes a display area and a peripheral wiring area, and the display area is electrically connected to the peripheral wiring area, wherein: the display area includes a plurality of touch areas arranged in an array, each of the touch areas is provided with a corresponding touch electrode and a first wiring, each of the touch electrodes is electrically connected to the corresponding first wiring, and each of the first wirings is electrically connected to the peripheral wiring area; at least one of the touch areas is a first touch area, each of the first touch areas is provided with at least one redundant electrode and at least one second wiring, and each of the redundant electrodes is electrically connected to the corresponding second wiring.

[0037] By setting at least one of the touch areas as a first touch area, and providing at least one redundant electrode and at least one second wiring in each of the first touch areas, so that each of the redundant electrodes is electrically connected to the corresponding second wiring, the present application can improve the uniformity of each touch area, thereby reducing the probability of abnormal visibility of the touch display panel and improving the touch performance of the touch display panel.

[0038] Figure 3 A schematic diagram showing a touch display panel according to an embodiment of the present application is shown.

[0039] like Figure 3 As shown, in the present application, the touch display panel may include a peripheral wiring area 1 and a display area 2. In the peripheral wiring area 1, a touch circuit may be provided, and the touch circuit may be implemented in the form of an integrated circuit; in the display area 2, a plurality of touch areas arranged in an array may be provided.

[0040] See also Figure 3 , the touch area 31 may represent the touch area of ​​the 3rd row and the 2nd column, which is recorded as the touch area (3,2). Each of the touch areas is provided with a corresponding first wiring, for example, the first wiring corresponding to the touch area 31 is the first wiring 32. The first wiring 32 may be electrically connected to the touch electrode of the touch area 31 through the connection hole 33.

[0041] Furthermore, at least one of the plurality of touch control areas is a first touch control area, each of the first touch control areas is provided with at least one redundant electrode and at least one second wiring, and each of the redundant electrodes is electrically connected to the corresponding second wiring. Figure 3 In the embodiment, the touch area 31 can be the first touch area, while the touch area (4, 1) is not the first touch area because no redundant electrode or second wiring is provided in the touch area (4, 1). The second wiring 34 can be electrically connected to the resistance reduction electrode of the touch area 31 through the connection hole 35.

[0042] Figure 4 A partial cross-sectional view of a touch display panel according to an embodiment of the present application is shown.

[0043] like Figure 4 As shown, in this application, the touch area 31 can be Figure 3 The touch area (3,2) of the touch area 31 can be electrically connected to the corresponding first wiring 32 through three first connection holes. The first wiring 36 can be a wiring extending from the touch area (1,2) to the touch area 31 along the column direction. The second wiring 34 can be electrically connected to the corresponding redundant electrode through three second connection holes. Figure 4 The touch area 31 is cut open by BB' in FIG. Figure 4 The lower part shows a partial cross-sectional view corresponding to the touch area 31 .

[0044] Exemplarily, the array driving layer 46 (i.e., TFT layer) is arranged at the bottom, and the light emitting layer 45 (i.e., OLED layer) is arranged on one side of the array driving layer 46. A thin film encapsulation layer 44 (i.e., TFE layer) is arranged on the side of the light emitting layer 45 away from the array driving layer 46, and a plurality of first wirings and second wirings, such as the first wiring 32 and the second wiring 34, are arranged on the side of the thin film encapsulation layer 44 away from the array driving layer 46. The inorganic layer 43 covers the plurality of wirings. A touch electrode 41 is arranged on the side of the inorganic layer 43 away from the array driving layer 46, and the touch electrode 41 is electrically connected to the corresponding first wiring 32 through the first connection hole 33; a redundant electrode 42 may also be arranged on the side of the inorganic layer 43 away from the array driving layer 46, and the redundant electrode 42 is electrically connected to the corresponding second wiring 34 through the second connection hole 35. A hollow area 421 is arranged between the redundant electrode 42 and the adjacent redundant electrode.

[0045] Furthermore, each of the redundant electrodes is insulated from any of the touch electrodes, and any two of the redundant electrodes are insulated from each other. Figure 4In the embodiment, two redundant electrodes may be provided corresponding to the touch area 31, and the two redundant electrodes are insulated from each other and have no electrical connection. At the same time, the two redundant electrodes are also insulated from the touch electrode. For example, the redundant electrodes may be in the shape of long strips along the column direction.

[0046] Furthermore, each of the second routing lines is insulated from any of the first routing lines, and any two of the second routing lines are insulated from each other. In the present application, each of the second routing lines may be a metal routing line, and the second routing line may also be referred to as a dummy line. Figure 4 In the embodiment, two second wirings may be provided, and the two second wirings are insulated from each other and have no electrical connection. At the same time, the two second wirings are also insulated from the first wiring.

[0047] It should be noted that in the present application, for any touch control area, the number of corresponding redundant electrodes may be equal to the number of second wirings, that is, there is a one-to-one correspondence between the second wirings and the redundant electrodes. For different touch control areas, the number of redundant electrodes may also be different. For example, Figure 3 In the embodiment, the touch area (2, 1) is provided with 4 redundant electrodes, and the touch area (2, 2) is provided with 3 redundant electrodes. It can be understood that the present application does not limit the number of redundant electrodes and the number of second wirings.

[0048] Exemplarily, the display area may include M rows and N columns of touch control areas, where M and N are both natural numbers. Among them, the number of redundant electrodes corresponding to each touch control area in the 1st row of touch control areas may be M-1, the number of redundant electrodes corresponding to each touch control area in the 2nd row of touch control areas may be M-2, and so on. The number of redundant electrodes corresponding to each touch control area in the M-1th row of touch control areas may be 1, and the number of redundant electrodes corresponding to each touch control area in the Mth row of touch control areas may be 0. That is, the touch control areas in the first M-1 rows may all be the first touch control areas, and the number of redundant electrodes in the touch control areas in the same row is the same. Along the column direction from top to bottom, the number of redundant electrodes corresponding to each touch control area gradually decreases.

[0049] See also Figure 3 The number of first routing lines corresponding to the touch area of ​​each column may be M, and the total number of first routing lines in the display area is M*N. All first routing lines may be gathered in the peripheral routing area and electrically connected to the touch circuit in the peripheral routing area, so that the touch circuit outputs corresponding actions according to the touch position, thereby realizing the touch function.

[0050] It should be noted that, for the first touch control areas in the same column, the second wirings of the first touch control areas can be electrically connected. Figure 3In the embodiment, in the leftmost column of first touch control regions, the leftmost second traces of the first touch control regions may be aligned along the column direction and electrically connected to each other.

[0051] Furthermore, each of the touch electrodes is correspondingly provided with at least one first connection hole, and each of the touch electrodes is electrically connected to the corresponding first wiring through the at least one first connection hole. Figure 4 In the embodiment, the touch area 31 is provided with a touch electrode 41, and the touch electrode 41 is electrically connected to the first trace 32 through three first connection holes, and the three first connection holes can be arranged along the column direction. Exemplarily, the distances between each first connection hole and the adjacent first connection holes are equal. It can be understood that the number of the first connection holes can be set as needed, and the present application does not limit the number of the first connection holes.

[0052] Furthermore, each of the redundant electrodes is correspondingly provided with at least one second connection hole, and each of the redundant electrodes is electrically connected to the corresponding second wiring through at least one second connection hole. Figure 4 In the embodiment, two redundant electrodes are provided corresponding to the touch area 31, and the two redundant electrodes can be electrically connected to the corresponding second wirings through three second connection holes respectively, and the second connection holes corresponding to each redundant electrode can be arranged along the column direction. Exemplarily, among the multiple second connection holes corresponding to each redundant electrode, the distances between each second connection hole and the adjacent second connection holes are equal.

[0053] Furthermore, the redundant electrodes of each of the first touch control areas are arranged in parallel with the touch control electrodes of the first touch control area, and the coordinates of the redundant electrodes of each of the first touch control areas along the column direction are the same as the coordinates of the touch control electrodes of the first touch control area along the column direction. Figure 4 In the embodiment, the redundant electrode 42 is parallel to the touch electrode 41. The coordinates of the redundant electrode along the column direction may be the coordinates of the center point of the redundant electrode, and the coordinates of the touch electrode along the column direction may be the coordinates of the center point of the touch electrode, so the coordinates of the redundant electrode 42 and the touch electrode 41 along the row direction may be the same.

[0054] It should be noted that, in the present application, the row direction may be the row direction of the touch area array, which may also be referred to as the x-direction or the first direction; the column direction may be the column direction of the touch area array, which may also be referred to as the y-direction or the second direction. In practical applications, for the same touch area, the number of second connection holes corresponding to each redundant electrode in the touch area may be the same as the number of first connection holes corresponding to the touch electrodes in the touch area. Moreover, the coordinates of the second connection holes corresponding to each redundant electrode in the row direction may be the same as the coordinates of the corresponding first connection holes in the row direction. For example, Figure 4In the embodiment, the coordinates of the second connection holes 35 in the row direction may be the same as the coordinates of the corresponding first connection holes 33 in the row direction.

[0055] Further, at least one of the touch control areas is a second touch control area, each of the second touch control areas is provided with at least one resistance reduction electrode, and the at least one resistance reduction electrode is electrically connected to the corresponding first wiring.

[0056] Figure 5 A schematic diagram showing a touch display panel according to an embodiment of the present application is shown.

[0057] like Figure 5 As shown, exemplarily, in the present application, the touch area (3, 2) may be the second touch area. The touch area (3, 2) may be provided with two resistance reduction electrodes, and each resistance reduction electrode may be electrically connected to the corresponding first wiring through the third connection hole. For example, one of the resistance reduction electrodes may be electrically connected to the first wiring 57 through the third connection hole 56. The first wiring 57 may be a wiring between the touch area (1, 2) and the touch circuit.

[0058] Figure 6 A partial cross-sectional view of a touch display panel according to an embodiment of the present application is shown.

[0059] like Figure 6 As shown, in this application, the touch area 51 can be Figure 5 The touch area (3,2) of the touch area 51 can be electrically connected to the corresponding first wiring 52 through three first connection holes. The first wiring 57 can be a wiring extending from the touch area (1,2) to the touch area 51 along the column direction. The second wiring 54 can be electrically connected to the corresponding redundant electrode through three second connection holes. Figure 6 The touch area 51 is cut open by CC' in FIG. Figure 6 The lower part shows a partial cross-sectional view corresponding to the touch area 51 .

[0060] Exemplarily, the array driving layer 65 (i.e., TFT layer) is disposed at the bottom, and the light emitting layer 45 (i.e., OLED layer) is disposed on one side of the array driving layer 65. A thin film encapsulation layer 63 (i.e., TFE layer) is disposed on the side of the light emitting layer 64 away from the array driving layer 65, and a plurality of first wirings and second wirings, such as the first wiring 52, the second wiring 54, and the first wiring 57, are disposed on the side of the thin film encapsulation layer 63 away from the array driving layer 65. The inorganic layer 62 covers the plurality of wirings. A touch electrode is provided on the side of the inorganic layer 62 away from the array drive layer 65, and the touch electrode is electrically connected to the corresponding first wiring 52 through the first connection hole 53; a redundant electrode may also be provided on the side of the inorganic layer 62 away from the array drive layer 65, and the redundant electrode is electrically connected to the corresponding second wiring 54 through the second connection hole 55; a hollow area 551 is provided between the redundant electrode 55 and the adjacent redundant electrode; a resistance reduction electrode 61 may also be provided on the side of the inorganic layer 62 away from the array drive layer 65, and the resistance reduction electrode 61 is electrically connected to the corresponding first wiring 57 through the third connection hole 56. A hollow area 561 is provided between the resistance reduction electrode 61 and the adjacent resistance reduction electrode.

[0061] Furthermore, each of the resistance-reducing electrodes is correspondingly provided with at least one third connection hole, and each of the resistance-reducing electrodes is electrically connected to the corresponding first wiring through at least one third connection hole. Figure 6 In the embodiment, two third connection holes are provided, and two corresponding resistance reduction electrodes are also provided.

[0062] Furthermore, the display area is a stacked structure, wherein: all redundant electrodes, resistance reduction electrodes and touch electrodes are located in the same layer, and all second wirings and first wirings are located in the same layer. Figure 6 In the embodiment, all redundant electrodes, resistance reduction electrodes and touch electrodes are located on the side of the inorganic layer away from the array drive layer, and all second traces and first traces are located on the side of the thin film encapsulation layer away from the array drive layer, that is, they are all located in the inorganic layer 62. It can be understood that the electrodes in the present application can all be metal electrodes, and the traces can all be metal traces, and the present application does not limit the materials of the electrodes and traces.

[0063] Figure 7 A schematic diagram showing a touch display panel according to an embodiment of the present application is shown.

[0064] See also Figure 7 ,and Figure 5 The difference is, Figure 7 The redundant electrodes of each first touch region are insulated from the redundant electrodes of other first touch regions. Figure 7 The second wiring of each first touch area is insulated from the second wiring of other first touch areas. Figure 5The second wiring in the touch panel is disconnected, which can further improve the uniformity of each touch area, thereby reducing the probability of abnormal visibility of the touch display panel and improving the touch performance of the touch display panel.

[0065] It should be noted that the touch electrodes in the present application may be touch electrodes, the redundant electrodes may be dummy electrodes, and the resistance reduction electrodes may be resistance reduction electrodes. By adding redundant electrodes on the basis of touch electrodes, the present application can make the distribution of electrodes and wiring in each touch area more uniform, improve the uniformity of each touch area, thereby reducing the probability of abnormal visibility of the touch display panel and improving the touch performance of the touch display panel; by further adding resistance reduction electrodes, the present application can reduce the impedance of the touch area and improve the problem of excessive impedance in the remote touch area, thereby improving the touch performance.

[0066] In addition, the present application also provides a touch display device, the touch display device includes the touch display panel and a touch circuit, the touch display panel is electrically connected to the touch circuit. It can be understood that there are many forms of implementation of the touch circuit, and the present application does not limit how to implement the touch circuit.

[0067] To summarize, the embodiment of the present application sets at least one of the touch areas as a first touch area, and sets at least one redundant electrode and at least one second wiring in each of the first touch areas, so that each of the redundant electrodes is electrically connected to the corresponding second wiring, thereby improving the uniformity of each touch area, thereby reducing the probability of abnormal visibility of the touch display panel, improving the touch performance of the touch display panel, and being suitable for various types of touch panels such as low-temperature polycrystalline silicon (LTPS).

[0068] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0069] The touch display panel and the touch display device provided in the embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A touch display panel, It is characterized in that The touch display panel includes a display area and a peripheral wiring area, and the display area is electrically connected to the peripheral wiring area, wherein: The display area includes a plurality of touch control areas arranged in an array, each of the touch control areas is provided with a corresponding touch control electrode and a first wiring, each of the touch control electrodes is electrically connected to a corresponding first wiring, and each of the first wirings is electrically connected to the peripheral wiring area; At least one of the touch control areas is a first touch control area, each of the first touch control areas is provided with at least one redundant electrode and at least one second wiring, and each of the redundant electrodes is electrically connected to the corresponding second wiring; The redundant electrodes of each of the first touch control areas are arranged in parallel with the touch control electrodes of the first touch control area, and the coordinates of the redundant electrodes of each of the first touch control areas along the column direction are the same as the coordinates of the touch control electrodes of the first touch control area along the column direction.

2. The touch display panel according to claim 1, It is characterized in that Each of the redundant electrodes is insulated from any of the touch electrodes, and any two of the redundant electrodes are insulated from each other.

3. The touch display panel according to claim 2, It is characterized in that Each of the second routing lines is insulated from any of the first routing lines, and any two of the second routing lines are insulated from each other.

4. The touch display panel according to claim 1, It is characterized in that Each of the touch electrodes is correspondingly provided with at least one first connection hole, and each of the touch electrodes is electrically connected to the corresponding first wiring through the at least one first connection hole.

5. The touch display panel according to claim 4, It is characterized in that Each of the redundant electrodes is correspondingly provided with at least one second connection hole, and each of the redundant electrodes is electrically connected to the corresponding second wiring through the at least one second connection hole.

6. The touch display panel according to claim 1, It is characterized in that At least one of the touch control areas is a second touch control area, each of the second touch control areas is provided with at least one resistance reduction electrode, and the at least one resistance reduction electrode is electrically connected to the corresponding first wiring.

7. The touch display panel according to claim 6, It is characterized in that Each of the resistance reduction electrodes is correspondingly provided with at least one third connection hole, and each of the resistance reduction electrodes is electrically connected to the corresponding first wiring through the at least one third connection hole.

8. The touch display panel according to claim 1, It is characterized in that The display area is a stacked structure, wherein: all touch electrodes, redundant electrodes and resistance reduction electrodes are located in the same layer, and all first wirings and second wirings are located in the same layer.

9. A touch display device, It is characterized in that The touch display device comprises the touch display panel according to any one of claims 1 to 8 and a touch circuit, and the touch display panel is electrically connected to the touch circuit.

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