Touch panel and touch display device

Abstract

The embodiment of the present invention provides a touch panel and a touch display device. The touch panel and the touch display device include a substrate and a touch electrode. The touch electrode includes a plurality of pattern electrodes. Adjacent pattern electrodes are arranged in a staggered manner in a first direction. The pattern electrodes have a first width in the first direction and a second width in a second direction, wherein the second width is greater than the first width. By changing the arrangement of the pattern electrodes, the touch leads electrically connected to the pattern electrodes in the panel are reduced, the touch accuracy of the panel is improved, and the production cost is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the field of design and manufacture of display panels, and in particular to a touch panel and a touch display device. Background Art

[0002] With the development of display technologies such as display panel manufacturing processes, people have put forward higher requirements on the performance and quality of display panels and devices.

[0003] Touch panels are used in various display fields because they can be directly operated by touch on the screen. For touch panels, the main ones on the market are projected capacitive touch screens, among which capacitive touch screens are mainly divided into self-capacitive and mutual-capacitive touch screens. Generally, a capacitive touch panel has electrode axes arranged along the horizontal and vertical directions, and each electrode axis has electrodes arranged along the same axis that are electrically connected to each other. When the display panel is touched, multiple touch points will correspond to the touch screen, and each touch point corresponds to a horizontal coordinate and a vertical coordinate. When the touch panel in the prior art identifies the touch points formed above, the corresponding coordinate values ​​will be confused to form a ghost point phenomenon. At the same time, in a large-size display panel, due to the large number of corresponding touch sensing units, the number of readout leads corresponding to the touch sensing units is also increased. When reading and identifying the touch points, there will be a large signal-to-noise ratio, thereby reducing the touch sensitivity and touch effect of the touch panel, which is not conducive to improving the comprehensive performance of the touch panel.

[0004] In summary, the touch panel prepared in the prior art cannot identify the touch point well when performing touch operation on the touch panel, thereby affecting the touch accuracy and touch sensitivity of the display panel, which is not conducive to improving the comprehensive performance of the touch panel. Summary of the invention

[0005] The embodiments of the present invention provide a touch panel and a touch display device, which can effectively improve the touch accuracy angle of the touch panel and the unsatisfactory touch effect, and effectively improve the comprehensive performance of the touch panel.

[0006] To solve the above technical problems, the technical methods provided by the embodiments of the present invention are as follows:

[0007] According to a first aspect of an embodiment of the present invention, a touch panel is provided, comprising:

[0008] a substrate substrate; and,

[0009] A touch electrode, wherein the touch electrode comprises a plurality of pattern electrodes, and the plurality of pattern electrodes are arranged in an array in a first direction and in a second direction intersecting the first direction;

[0010] Among them, adjacent pattern electrodes among the multiple pattern electrodes are staggered in the first direction, each pattern electrode among the multiple pattern electrodes has a first width in the first direction and a second width in the second direction, and the second width is greater than the first width.

[0011] According to an embodiment of the present invention, a ratio of the second width of the pattern electrode in the second direction to the first width of the pattern electrode in the first direction is N:1, wherein N is an integer greater than 1.

[0012] According to an embodiment of the present invention, the second width of the pattern electrode in the second direction is twice the first width of the pattern electrode in the first direction.

[0013] According to one embodiment of the present invention, the plurality of pattern electrodes include a plurality of first pattern electrodes and a plurality of second pattern electrodes, and the plurality of first pattern electrodes and the plurality of second pattern electrodes are alternately arranged in the first direction, wherein in the first direction, at least one end portion of a first pattern electrode among the plurality of first pattern electrodes is flush with a center line of a corresponding pattern electrode among the plurality of second pattern electrodes.

[0014] According to an embodiment of the present invention, in the first direction, the plurality of first pattern electrodes and the plurality of second pattern electrodes are alternately arranged at equal intervals.

[0015] According to an embodiment of the present invention, in the second direction, a spacing between adjacent first pattern electrodes among the plurality of first pattern electrodes is the same as a spacing between adjacent second pattern electrodes among the plurality of second pattern electrodes.

[0016] According to an embodiment of the present invention, a first width of each of the first pattern electrodes in the first direction is the same as a first width of each of the second pattern electrodes in the first direction.

[0017] According to one embodiment of the present invention, the second width corresponding to the first pattern electrode in the second direction is greater than the first width of the first pattern electrode in the first direction, and the second width of the second pattern electrode in the second direction is greater than the first width of the second pattern electrode in the first direction.

[0018] According to an embodiment of the present invention, the display panel further includes touch leads, and the touch leads are correspondingly connected to the pattern electrodes.

[0019] According to an embodiment of the present invention, the display panel further includes a connecting terminal, the connecting terminal is disposed on the pattern electrode, and the touch lead is electrically connected to the pattern electrode through the connecting terminal.

[0020] According to an embodiment of the present invention, in the first direction, the connection terminals disposed on the spaced pattern electrodes are all located on the same straight line.

[0021] According to an embodiment of the present invention, the distances between adjacent touch wires are the same.

[0022] According to one embodiment of the present invention, the plurality of pattern electrodes include a plurality of third pattern electrodes and a plurality of fourth pattern electrodes, the plurality of third pattern electrodes and the plurality of fourth pattern electrodes are arranged in an array in the first direction and the second direction, the plurality of third pattern electrodes and the plurality of fourth pattern electrodes are alternately arranged in the first direction, and the length of one third pattern electrode among the plurality of third pattern electrodes in the second direction is greater than the length of one fourth pattern electrode among the plurality of fourth pattern electrodes in the second direction.

[0023] According to an embodiment of the present invention, a length of the third pattern electrode in the second direction is greater than a length of the fourth pattern electrode in the second direction.

[0024] According to a second aspect of the present invention, there is further provided a touch display device, comprising:

[0025] display panel; and

[0026] A touch panel, the touch panel being arranged opposite to the display panel, the touch panel comprising a touch area, and a plurality of touch electrodes being arranged in the touch area;

[0027] Wherein, the touch panel is the touch panel described in the embodiment of the present invention.

[0028] In summary, the beneficial effects of the embodiments of the present invention are:

[0029] The embodiment of the present invention provides a touch panel and a touch display device. The touch panel includes a substrate and a touch electrode, wherein the touch electrode includes a plurality of pattern electrodes, the pattern electrodes are arrayed in a first direction and a second direction, and adjacent pattern electrodes are staggered in the first direction, wherein the pattern electrode has a first width in the first direction and a second width in the second direction, and the second width corresponding to the pattern electrode in the second direction is greater than the first width corresponding to the pattern electrode in the first direction. In the embodiment of the present invention, by changing the first width and the second width of the pattern electrode, the number of touch leads electrically connected to the pattern electrode in the display panel is reduced, thereby effectively improving the touch accuracy and touch effect of the touch panel, reducing the production cost, and improving the comprehensive performance of the touch panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The technical solutions and other beneficial effects of the present invention will be more apparent by describing in detail the specific embodiments of the present invention in conjunction with the accompanying drawings.

[0031] Figure 1 A schematic diagram of the structure of a self-capacitive touch panel provided in the prior art;

[0032] Figure 2 A schematic diagram of the planar structure of the touch electrodes of the touch display panel provided in an embodiment of the present invention;

[0033] Figure 3 is a schematic diagram of the arrangement of another pattern electrode provided in an embodiment of the present invention;

[0034] Figure 4 A schematic diagram of touch operation corresponding to the touch display panel provided by an embodiment of the present invention;

[0035] Figure 5 A schematic diagram of an equivalent circuit structure formed by a touch pattern electrode;

[0036] Figure 6 A schematic diagram of the structure of a connection terminal provided by an embodiment of the present invention;

[0037] Figure 7 A schematic diagram of the arrangement of touch electrodes in another touch display panel provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0038] In conjunction with the accompanying drawings in the embodiments of the present invention, the following disclosure provides different implementation methods or examples to implement different structures of the present invention. In order to simplify the present invention, the components and settings of specific examples are described below. In addition, the examples of various specific processes and materials provided by the present invention are examples that ordinary technicians in the field can recognize the application of other processes. All other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0039] In the description of the present invention, it is to 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 invention 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 limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0040] With the continuous development of display panel manufacturing technology, people have put forward higher requirements on various performances and touch effects of touch panels. It is hoped that the prepared touch panel has high touch sensitivity, touch accuracy and good comprehensive performance.

[0041] like Figure 1 As shown in Figure 1 Schematic diagram of the structure of the self-capacitive touch panel provided in the prior art. When setting, a plurality of touch electrodes 103 are usually arranged in an array on a substrate. At the same time, each touch electrode 103 is respectively provided with a plurality of signal leads 101 and a signal lead 102 in the row and column directions. For example, signal leads X1, X2, X3 and X4 are provided in the row direction, and signal leads Y1, Y2, Y3 and Y4 are provided in the column direction. When the display panel is touched, the touch point is sensed on the corresponding touch electrode 103, and the coordinates of the touch point (X n , Y n ), and the touch panel in the prior art will have certain errors or a large signal-to-noise ratio when reading the coordinate values ​​of multiple touch points. At the same time, since the number of touch electrodes 103 arranged in the display panel is large, the number of corresponding leads is also large, and the number of driving chips connected thereto is also large, which leads to a high production cost. At the same time, there will also be problems such as reduced touch accuracy of the panel and unsatisfactory touch effect.

[0042] Embodiments of the present invention provide a touch panel and a touch display device, so as to effectively improve the touch accuracy and touch effect of the touch display panel and enhance the comprehensive performance of the touch display device.

[0043] like Figure 2 As shown, Figure 2 The schematic diagram of the planar structure of the touch electrode arrangement of the touch display panel provided in the embodiment of the present invention. In the embodiment of the present invention, the touch display panel includes a base substrate 200 and a touch electrode. Specifically, the touch electrode is arranged on the base substrate 200, and the touch electrode includes a plurality of touch pattern electrodes 201, and the plurality of pattern electrodes 201 are arranged in an array on the base substrate 200.

[0044] Preferably, on the base substrate 200, the pattern electrodes 201 are arranged in an array in the first direction and the second direction of the base substrate 200. In the embodiment of the present invention, the first direction intersects with the second direction, and there is an angle between the first direction and the second direction. Specifically, in the following embodiments, the first direction is taken as an example of the direction corresponding to the row of the base substrate 200, that is, the first direction is the horizontal X-axis direction, and the second direction is taken as an example of the direction corresponding to the column of the base substrate 200, that is, the second direction is the vertical Y-axis direction. At this time, the angle between the first direction X and the second direction Y is a right angle. Other directions can also be taken as examples to make the angle between the first direction X and the second direction Y other values, which will not be described in detail here.

[0045] In the embodiment of the present invention, the above-mentioned plurality of pattern electrodes 201 are arranged on the base substrate 200, and in the direction of the row corresponding to the first direction X: in the same row, the pattern electrodes 201 are arranged in a staggered manner. Specifically, in a certain row, two adjacent pattern electrodes are pattern electrode 2011 and pattern electrode 2012. The pattern electrode 2011 and the pattern electrode 2012 are arranged in a staggered manner, that is, the top of the pattern electrode 2011 is not flush with the top of the adjacent pattern electrode 2012.

[0046] At the same time, when arranging each pattern electrode 201, the value of the second width corresponding to the pattern electrode 201 in the second direction Y is greater than the value of the first width corresponding to the pattern electrode 201 in the first direction X. In the embodiment of the present application, since the value of the second width of each pattern electrode 201 in the second direction Y is greater than the value of its first width in the first direction X, the touch area corresponding to the pattern electrode 201 is increased. When the pattern electrode with a larger touch area is arranged on the array substrate, the number of its pattern electrodes will be reduced accordingly, and the corresponding touch leads electrically connected to each pattern electrode arranged on the array substrate will also be reduced accordingly. When a touch operation is performed on it, the interference between multiple touch leads can be effectively reduced, which can easily affect the reading of the touch point.

[0047] Further, in the embodiment of the present application, in the first direction, each pattern electrode has a first width, and in the second direction, each pattern electrode has a second width. Figure 2 In the figure, they correspond to a first width value a of the pattern electrode in the first direction, and a second width value b in the second direction, respectively.

[0048] In the embodiment of the present invention, the height of the pattern electrode 2011 in the Y-axis direction and its length in the X-axis direction can be set in a certain ratio, that is, the first width and the second width corresponding to each pattern electrode 2011 can be set in a certain proportional relationship. In the embodiment of the present application, the ratio between the second width corresponding to the pattern electrode in the second direction Y and the first width corresponding to the pattern electrode in the first direction X is N:1. Wherein, N is a positive integer, preferably, N is greater than or equal to 2, such as N=2, 3, 4... When N=2, the second width of the pattern electrode in the second direction Y is twice the first width corresponding to the pattern electrode in the first direction X. At this time, not only can the touch area corresponding to the pattern electrode 2011 be increased and the number of pattern electrodes arranged can be reduced, but also the number of touch leads corresponding to the pattern electrode can be better controlled, thereby ensuring the touch accuracy and touch effect during touch.

[0049] In the following embodiments, a ratio of the second width of the pattern electrode 201 in the second direction Y to the first width of the pattern electrode 201 in the first direction X is 2:1 as an example for description.

[0050] In the embodiment of the present invention, Figure 3 As shown, Figure 3 FIG. 1 is a schematic diagram of another arrangement of pattern electrodes provided in an embodiment of the present invention. In this embodiment, a pattern electrode arranged in two rows and two columns is taken as an example. When there are multiple rows and multiple columns, according to Figure 3 The array is arranged in the form of an array.

[0051] Specifically, in the embodiment of the present invention, the first pattern electrodes 301 and the second pattern electrodes 302 are alternately arranged in the first direction X, and the first pattern electrodes 301 and the second pattern electrodes 302 are respectively located in two adjacent columns, and multiple first pattern electrodes 301 and multiple second pattern electrodes 302 are arranged in an array to finally form the touch electrode provided in the embodiment of the present application.

[0052] When the first pattern electrode 301 and the second pattern electrode 302 are arranged, at least one end of the first pattern electrode 301 is flush with the center line O1 of the second pattern electrode 302 , and the end may be the top or the bottom of the first pattern electrode 301 .

[0053] In the embodiment of the present application, when a plurality of first pattern electrodes 301 and a plurality of second pattern electrodes 302 are provided, in the second direction Y, the spacing between two adjacent first pattern electrodes in the plurality of first pattern electrodes 301 is the same as the spacing between two adjacent second pattern electrodes in the plurality of second pattern electrodes 302. At this time, the spacing between any two adjacent first pattern electrodes is the same as the spacing between any two adjacent second pattern electrodes, and when a finger is used to touch them, the difference in equivalent capacitance values ​​formed between the finger and different pattern electrodes can be effectively reduced, thereby more accurately determining the touch point and ensuring touch accuracy.

[0054] Specifically, in the first column direction X, in the second direction Y, the spacing distance between two adjacent first pattern electrodes 301 is D1, and in the second column direction, the spacing distance between two adjacent second pattern electrodes 302 is D2. When setting up the embodiment of the present invention, the corresponding spacing distance D1 can be made the same as the spacing distance D2, that is, D1=D2.

[0055] Meanwhile, in the first direction X, when a plurality of pattern electrodes are arranged in an array, the horizontal spacing distances between two adjacent first pattern electrodes 301 and second pattern electrodes 302 can be the same, thereby effectively improving the touch accuracy by controlling the spacing between different electrodes.

[0056] Specifically, the second width of the first pattern electrode 301 in the second direction Y is greater than the first width of the first pattern electrode 301 in the first direction X, and the second width of the second pattern electrode 302 in the second direction Y is greater than the first width of the second pattern electrode 302 in the first direction X.

[0057] Further, in the embodiment of the present invention, when the pattern electrodes are set, the shapes of the pattern electrodes can be the same. For example, the shape of the pattern electrodes is set to be a rectangle, a square, a circle or other shape structures. In the embodiment of the present invention, a rectangle is used as an example for explanation. At the same time, it is ensured that the area size of each pattern electrode is the same.

[0058] When the shapes and sizes of the pattern electrodes are the same, the resistances of the corresponding pattern electrodes are also the same. When the touch display panel is touched, Figure 4 as well as Figure 5 As shown, Figure 4 A schematic diagram of touch operations corresponding to the touch display panel provided in an embodiment of the present invention. Figure 5 for Figure 4 The equivalent circuit structure diagram formed by the corresponding touch pattern electrodes in FIG. Figure 1-Figure 3 The touch electrode arrangement structure in FIG.

[0059] See Figure 4When the touch object 400 performs a touch operation on the touch electrode, such as the touch object 400 is a finger, the finger will contact different touch pattern electrodes 201, thereby forming a capacitor on the corresponding touch pattern electrode 201. The recognition unit determines the touch operation according to the size of the formed capacitance and the corresponding touch point, and accurately reports the touched area.

[0060] See Figure 5 When a finger touches it, the touch pattern electrode is equivalent to touch points A, B and C, and F is the equivalent touch point of the finger. At this time, different equivalent capacitances will be formed between the finger and each electrode and between each electrode. For example, an equivalent capacitance C will be formed between two adjacent pattern electrodes. AB , C AC , C BC The equivalent capacitances such as C FA , C FB and C FC .

[0061] In the embodiment of the present invention, since the touch point B and the touch point C are equivalently formed on the pattern electrodes in the same column, when the distance between the touch point B and the touch point C is different from the distance between the touch point A and the touch point B, there is a C AB =C AC ≠C BC When reading the capacitance values, FB >C FC When , it can be known that the number read at B is greater than the value at C. By calculating it, it can be known that the corresponding touch point is located in the upper half of A, thereby accurately obtaining the touch point of the touch display panel.

[0062] Preferably, when a touch finger touches the touch pattern electrode, an equivalent capacitance is formed between the touch finger and each pattern electrode, that is, C FA , C FB and C FC The size of each equivalent capacitance is determined according to the size of the relative distance. When the distance between the touch finger and each pattern electrode needs to be the same, the above equivalent capacitance values ​​are the same.

[0063] Furthermore, in the embodiment of the present invention, the equivalent capacitance formed between the touch point F equivalent to the finger and each electrode, and between each electrode is measured, and the size of the equivalent capacitance between the touching finger and each touch pattern electrode is compared to accurately obtain the position of the touch point, thereby effectively improving the touch accuracy and touch effect of the touch panel.

[0064] Preferably, combined Figure 1-Figure 2In the embodiment of the present invention, the touch display panel further includes a plurality of touch leads 25. Specifically, each touch lead 25 is electrically connected to a corresponding pattern electrode 201. In the embodiment of the present invention, the first touch lead 202 and the second touch lead 203 are used as an example for description, wherein the first touch lead 202 and the second touch lead 203 are arranged in the second direction Y, and are electrically connected to the two pattern electrodes 201 in the second direction.

[0065] Specifically, each pattern electrode 201 further includes a connection terminal 204. The connection terminal 204 is electrically connected to the corresponding touch lead 25. Various data signals are transmitted to the touch lead 25 through the connection terminal 204. Figure 6 As shown, Figure 6 A schematic diagram of the structure of the connection terminal provided in an embodiment of the present invention. When each connection terminal is set, such as the connection terminal A and the connection terminal B, at this time, one end of the connection terminal A is electrically connected to the pattern electrode, and the other end of the connection terminal A is electrically connected to the first touch lead 202, one end of the connection terminal B is electrically connected to the pattern electrode, and the other end of the connection terminal B is electrically connected to the second touch lead 203.

[0066] In the embodiment of the present invention, a plurality of touch leads 25 may be arranged in the same column direction. The plurality of touch leads 25 are arranged at equal intervals, and the intervals between the corresponding touch leads 25 in different columns are the same.

[0067] At the same time, the distance between the connection terminal A and one end of the pattern electrode is the same as the distance between the connection terminal B and one end of the pattern electrode. That is, the distance between the connection terminal A and the top of the pattern electrode 201 is the same as the distance between the connection terminal B and the top of the pattern electrode 201. In this way, in the first direction, the connection terminals arranged on the two spaced pattern electrodes 201 are all located on the same straight line, thereby ensuring that the connection terminals arranged in different columns have good consistency, so as to reduce their influence on the touch accuracy during the touch process.

[0068] Furthermore, in the embodiment of the present application, when the above-mentioned connection terminals A, connection terminals B and connection terminals C are set, the connection distances formed by connecting each connection terminal A, connection terminal B and connection terminal C in pairs can be made the same, thereby ensuring a higher touch effect.

[0069] In the embodiment of the present invention, since the second width of the pattern electrode 201 in the second direction is greater than the first width thereof in the first direction, for a substrate of a fixed size, the number of touch electrodes arranged in the second direction is reduced, and at the same time, the total number of touch leads arranged on the substrate is also reduced, thereby effectively reducing the production cost of the touch display panel.

[0070] like Figure 7 As shown, Figure 7 A schematic diagram of the arrangement of touch electrodes in another touch display panel provided by an embodiment of the present invention. Figure 1 In the arrangement structure of the present invention, in the embodiment of the present invention, the touch electrode includes a plurality of pattern electrodes 201. The plurality of pattern electrodes 201 are arranged in an array in the first direction and the second direction.

[0071] The pattern electrode 201 further includes a plurality of third pattern electrodes 601 and a plurality of fourth pattern electrodes 602, wherein the third pattern electrodes 601 and the fourth pattern electrodes 602 are arranged adjacent to each other, and a plurality of sub-pattern electrodes can be arranged correspondingly in the third pattern electrodes 601 and the fourth pattern electrodes 602, and the plurality of sub-pattern electrodes are arranged in an array in a spaced-apart manner in the corresponding column direction.

[0072] In the embodiment of the present invention, when the third pattern electrode 601 is provided, the second width corresponding to the third pattern electrode in the second direction is greater than the first width of the third pattern electrode in the first direction, and the second width of the third pattern electrode in the second direction is greater than the second width of the fourth pattern electrode in the second direction. That is, at this time, the length of the third pattern electrode 601 is greater than the length of the fourth pattern electrode. Such arrangement increases the area of ​​the corresponding pattern electrode in a certain column direction, thereby improving its touch accuracy.

[0073] Preferably, in the second direction, the ratio of the second width of the third pattern electrode in the second direction to the first width thereof in the first direction is 2:1, and in the embodiment of the present invention, the width of the third pattern electrode in the first direction is the same as the width of the fourth pattern electrode in the first direction. At the same time, the width of the fourth pattern electrode in the first direction is the same as the length of the third pattern electrode in the second direction, that is, the fourth pattern electrode can be set to a square structure, or, when setting the third pattern electrode and the fourth pattern electrode, the first width of the third pattern electrode is made greater than the first width of the fourth pattern electrode, so as to further change the corresponding resistance value and achieve the purpose of improving the touch accuracy.

[0074] Furthermore, when multiple sub-pattern electrodes are disposed in the third pattern electrode 601 and the fourth pattern electrode 602 , the spacing distance between two adjacent sub-pattern electrodes may be the same, and the distance is smaller than the spacing between two adjacent sub-pattern electrodes in the third pattern electrode.

[0075] At the same time, touch leads 25 and connection terminals 204 are also correspondingly arranged on the third pattern electrode 601 and the fourth pattern electrode 602. The connection terminal 204 can be arranged on the surface of the corresponding pattern electrode or on the side of the pattern electrode, which is determined according to the shape and structure of the electrode. Specifically, in the third pattern electrode 601, its electrode area is larger than the electrode panel corresponding to the fourth pattern electrode. Therefore, when setting, in two adjacent columns, the number of sub-pattern electrodes arranged in the third pattern electrode 601 is less than the number of sub-pattern electrodes arranged in the fourth pattern electrode 602. Therefore, the number of touch leads 25 in the corresponding area of ​​the third pattern electrode 601 is less than the number of touch leads 25 corresponding to the fourth pattern electrode 602. By staggering the pattern electrodes and controlling the corresponding first width and second width values, the touch accuracy and effect of the display panel can be effectively improved.

[0076] like Figure 7 As shown in FIG, in this region, two touch leads 25 are electrically connected to two third pattern electrodes respectively, and four touch leads 25 are electrically connected to four fourth pattern electrodes respectively. Thus, the number of pattern electrodes 201 is reduced, and the number of touch leads in the touch display panel is reduced, effectively reducing the production cost of the display panel.

[0077] Furthermore, when setting the connection terminal 204 corresponding to the third pattern electrode 601, the distance from each connection terminal to one side of the pattern electrode can be set to be the same, and when setting the connection terminal 204 corresponding to the fourth pattern electrode 602, the distance from each connection terminal to one side of the pattern electrode can also be set to be the same. This ensures that the connection terminals on the touch electrode have good consistency.

[0078] At the same time, an embodiment of the present invention also provides a touch display device, which includes a display panel and a touch panel, and the display panel and the touch panel are arranged relative to each other, such as the touch panel is attached to the display panel. Among them, the touch panel includes a touch area, and a plurality of touch electrodes are arranged in the touch area, and the touch operation is realized by touching the touch electrodes in the touch area. Specifically, the touch panel is the touch panel provided in the embodiment of the present application, and when the touch display device is touched, it has high touch accuracy and good touch effect. The touch electrodes in the touch panel provided in the embodiment of the present invention are arranged according to the above-mentioned electrode structure, thereby effectively improving the touch performance of the touch panel and effectively reducing the production cost of the touch device.

[0079] Furthermore, the touch panel and touch display device may be: OLED panel, mobile phone, computer, electronic paper, display, notebook computer, digital photo frame and any other product or component with touch display function, and the specific type is not specifically limited.

[0080] The above is a detailed introduction to a touch panel and a touch display device provided in the embodiments of the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present invention. 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 invention.

Claims

1. A touch panel, characterized in that: include: substrate substrate; as well as, A touch electrode, wherein the touch electrode comprises a plurality of pattern electrodes, and the plurality of pattern electrodes are arranged in an array in a first direction and in a second direction intersecting the first direction; Wherein, adjacent pattern electrodes among the plurality of pattern electrodes are arranged in a staggered manner in the first direction, and each pattern electrode among the plurality of pattern electrodes has a first width in the first direction and a second width in the second direction; Among them, the multiple pattern electrodes include a plurality of third pattern electrodes and a plurality of fourth pattern electrodes, the multiple third pattern electrodes and the multiple fourth pattern electrodes are arranged in an array in the first direction and the second direction, the multiple third pattern electrodes and the multiple fourth pattern electrodes are alternately arranged in the first direction, and the second width of one of the multiple third pattern electrodes in the second direction is greater than the second width of one of the multiple fourth pattern electrodes in the second direction; the touch panel also includes touch leads, each of the touch leads is electrically connected to a corresponding one of the pattern electrodes.

2. The touch panel according to claim 1, characterized in that: A ratio of the second width of the pattern electrode in the second direction to the first width of the pattern electrode in the first direction is N:1, wherein N is an integer greater than 1.

3. The touch panel according to claim 2, characterized in that: The second width of the pattern electrode in the second direction is twice the first width of the pattern electrode in the first direction.

4. The touch panel according to claim 1, characterized in that: The plurality of pattern electrodes include a plurality of first pattern electrodes and a plurality of second pattern electrodes, and the plurality of first pattern electrodes and the plurality of second pattern electrodes are alternately arranged in the first direction, wherein in the first direction, at least one end of a pattern electrode in the plurality of first pattern electrodes is flush with a center line of a corresponding pattern electrode in the plurality of second pattern electrodes.

5. The touch panel according to claim 4, characterized in that: In the first direction, the plurality of first pattern electrodes and the plurality of second pattern electrodes are alternately arranged at equal intervals.

6. The touch panel according to claim 5, characterized in that: In the second direction, a pitch between adjacent first pattern electrodes among the plurality of first pattern electrodes is the same as a pitch between adjacent second pattern electrodes among the plurality of second pattern electrodes.

7. The touch panel according to claim 4, characterized in that: A first width of each of the first pattern electrodes in the first direction is the same as a first width of each of the second pattern electrodes in the first direction.

8. The touch panel according to claim 4, characterized in that: The second width of the first pattern electrode in the second direction is greater than the first width of the first pattern electrode in the first direction, and the second width of the second pattern electrode in the second direction is greater than the first width of the second pattern electrode in the first direction.

9. The touch panel according to claim 1, characterized in that: The touch panel further includes a connection terminal, which is disposed on the pattern electrode, and the touch lead is electrically connected to the pattern electrode through the connection terminal.

10. The touch panel according to claim 9, characterized in that: In the first direction, the connection terminals arranged on the spaced pattern electrodes are all located on the same straight line.

11. The touch panel according to any one of claims 7 to 10, characterized in that: The distances between adjacent touch leads are the same.

12. The touch panel according to claim 1, characterized in that: A length of the third pattern electrode in the second direction is greater than a length of the fourth pattern electrode in the second direction.

13. A touch display device, characterized in that: include: Display panel; as well as, A touch panel, the touch panel being arranged opposite to the display panel, the touch panel comprising a touch area, and a plurality of touch electrodes being arranged in the touch area; Wherein, the touch panel is the touch panel as described in any one of claims 1-12.

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