Display panel and display device

Abstract

The embodiment of the invention provides a display panel and a display device. The display panel includes a substrate; the first touch electrode sets are located on one side of the substrate, extend in the first direction and are arranged in the second direction, and the second touch electrode sets extend in the second direction and are arranged in the first direction; the first direction and the second direction intersect. The first touch electrode group comprises first touch electrodes and first connecting patterns, and every two adjacent first touch electrodes are electrically connected through at least two first connecting patterns; the second touch electrode group comprises second touch electrodes and second connecting patterns, and two adjacent second touch electrodes are electrically connected through the second connecting patterns; the two first connection patterns are electrically connected through the at least one first auxiliary connection pattern. According to the invention, a connecting path between two adjacent first touch electrodes can be increased, so that the electrical performance stability of the touch electrodes is improved.

Description

Technical Field

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

[0002] With the development of display technology, touch display panels with touch functions have been widely used. Touch technology has also developed from resistive touch to capacitive touch, and capacitive touch technology can achieve multi-point touch, meeting the needs of interactive applications. The electrical performance stability of the touch structure in the touch display panel affects the product quality. Summary of the invention

[0003] Embodiments of the present invention provide a display panel and a display device to solve the technical problem of improving the stability of the electrical performance of a touch control structure.

[0004] In a first aspect, an embodiment of the present invention provides a display panel, including:

[0005] substrate;

[0006] A plurality of first touch electrode groups extending along the first direction and arranged along the second direction, and a plurality of second touch electrode groups extending along the second direction and arranged along the first direction, located on one side of the substrate; the first direction and the second direction intersect;

[0007] The first touch electrode group includes first touch electrodes and first connection patterns, and two adjacent first touch electrodes are electrically connected through at least two first connection patterns;

[0008] The second touch electrode group includes second touch electrodes and a second connection pattern, and two adjacent second touch electrodes are electrically connected through the second connection pattern;

[0009] The two first connection patterns are electrically connected through at least one first auxiliary connection pattern.

[0010] In a second aspect, based on the same inventive concept, an embodiment of the present invention further provides a display device, including the display panel provided by any embodiment of the present invention.

[0011] The display panel and display device provided by the embodiment of the present invention have the following beneficial effects: the display panel provided by the embodiment of the present invention is provided with two adjacent first touch control electrodes electrically connected through at least two first connection patterns, and the two first connection patterns are electrically connected through at least one first auxiliary connection pattern. Such a setting can increase the connection path between the two adjacent first touch control electrodes, so that the electrical connection between the two adjacent first touch control electrodes is more stable, and the electrical performance stability of the touch control electrodes is improved, thereby ensuring the reliable performance of the display panel product. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative labor.

[0013] Figure 1 A schematic diagram of a display panel provided by an embodiment of the present invention;

[0014] Figure 2 for Figure 1 A partial enlarged view of the area Q1 of the display panel;

[0015] Figure 3 A partial schematic diagram of another display panel provided by an embodiment of the present invention;

[0016] Figure 4 for Figure 3 A schematic diagram of a cross section at the midline AA′;

[0017] Figure 5 A partial schematic diagram of another display panel provided by an embodiment of the present invention;

[0018] Figure 6 A partial schematic diagram of another display panel provided by an embodiment of the present invention;

[0019] Figure 7 A partial schematic diagram of another display panel provided by an embodiment of the present invention;

[0020] Figure 8 A partial schematic diagram of another display panel provided by an embodiment of the present invention;

[0021] Fig. 9 A partial schematic diagram of another display panel provided by an embodiment of the present invention;

[0022] Fig.10 A partial schematic diagram of a first metal layer in another display panel provided by an embodiment of the present invention;

[0023] Fig.11 A partial schematic diagram of a second metal layer in another display panel provided by an embodiment of the present invention;

[0024] Fig.12 for Fig.10 The first metal layer and Fig.11 Schematic diagram of the second metal layer stack;

[0025] Fig.13 A partial schematic diagram of another display panel provided by an embodiment of the present invention;

[0026] Fig.14 A partial schematic diagram of another display panel provided by an embodiment of the present invention;

[0027] Fig.15 A partial schematic diagram of another display panel provided by an embodiment of the present invention

[0028] Fig.16 A partial schematic diagram of another display panel provided by an embodiment of the present invention;

[0029] Fig.17 A partial schematic diagram of another display panel provided by an embodiment of the present invention

[0030] Fig.18 A schematic diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0033] Figure 1 A schematic diagram of a display panel provided by an embodiment of the present invention, Figure 2 for Figure 1 A partial enlarged view of area Q1 of the display panel. Figure 1 FIG. 1 is a top view of a display panel, which includes a substrate and a first touch electrode group 10 and a second touch electrode group 20 located on one side of the substrate. Figure 1 As shown, a plurality of first touch electrode groups 10 extending along a first direction x and arranged along a second direction y, and a plurality of second touch electrode groups 20 extending along a second direction y and arranged along the first direction x; the first direction x and the second direction y intersect. Optionally, the first direction x is the row direction of the pixel arrangement in the display area, and the second direction y is the column direction of the pixel arrangement in the display area. One of the first touch electrode group 10 and the second touch electrode group 20 is a touch driving electrode, and the other is a touch sensing electrode.

[0034] like Figure 2As shown, the first touch electrode group 10 includes a first touch electrode 11 and a first connection pattern 12, and two adjacent first touch electrodes 11 are electrically connected through at least two first connection patterns 12. The second touch electrode group 20 includes a second touch electrode 21 and a second connection pattern 22, and two adjacent second touch electrodes 21 are electrically connected through the second connection pattern 22; the two first connection patterns 12 are electrically connected through at least one first auxiliary connection pattern 13. The first connection pattern 12 is wired along the first direction x to realize the electrical connection of two adjacent first touch electrodes 11 in the first direction x, and the first auxiliary connection pattern 13 is wired along the second direction y to realize the electrical connection of two first connection patterns 12.

[0035] It should be noted that Figure 2 The images of the first connection patterns 12 and the first auxiliary connection patterns 13 are colored darker only to clearly illustrate their shapes, which does not mean that the first connection patterns 12 , the first auxiliary connection patterns 13 and the first touch electrodes 11 must be located in the same film layer.

[0036] The display panel provided by the embodiment of the present invention is provided with two adjacent first touch electrodes 11 electrically connected through at least two first connection patterns 12, and the two first connection patterns 12 are electrically connected through at least one first auxiliary connection pattern 13. Such a configuration can increase the connection path between the two adjacent first touch electrodes 11, so that the electrical connection between the two adjacent first touch electrodes 11 is more stable, and the electrical performance stability of the touch electrodes is improved, thereby ensuring the reliable performance of the display panel product.

[0037] In some embodiments, Figure 3 A partial schematic diagram of another display panel provided by an embodiment of the present invention. Figure 4 for Figure 3 A schematic diagram of a cross section at the midline AA′, which can be combined with Figure 2 right Figure 3 The shapes of the first connection patterns 12 and the first auxiliary connection patterns 13 illustrated in FIG. Figure 3 In the top view, for the first connection pattern 12 and the first auxiliary connection pattern 13, the line segment intercepted by the line AB is the line segment on the first connection pattern 12, and the line segment intercepted by the line BB′ is the line segment on the first auxiliary connection pattern 13. It should be noted that in order to clearly illustrate the positional relationship between the various structures, Figure 3 Different structures in the film are indicated by different filling patterns, and different structures located in the same film layer are also indicated by different filling patterns.

[0038] Depend on Figure 3It can be seen that the first connection pattern 12 and the first touch electrode 11 are located in different layers, the first connection pattern 12 is electrically connected to the first touch electrode 11 through a via that penetrates the insulating layer, and the second connection pattern 22 and the first touch electrode 11 are located in the same layer. Optionally, the film layer where the first connection pattern 12 is located is located on the side of the film layer where the first touch electrode 11 is located close to the substrate 00. In the embodiment of the present invention, the first touch electrode 11, the second touch electrode 21, and the second connection pattern 22 are arranged in the same layer, and the first connection pattern 12 and the first touch electrode 11 are located in different layers. Then the first connection pattern 12 is a structure that connects two adjacent first touch electrodes 11 and is arranged in a different layer from the first touch electrode 11. The first connection pattern 12 connects the two first touch electrodes 11 through vias respectively, and the first connection pattern 12 can also be called a bridge pattern. The second connection pattern 22 is a structure that connects two adjacent second touch electrodes 21 and is arranged in the same layer as the second touch electrode 21. In the embodiment of the present invention, two first connection patterns 12 are electrically connected through at least one first auxiliary connection pattern 13, which can increase a bridge connection path between two adjacent first touch electrodes 11, improve the electrical performance stability of the touch electrodes, and thus ensure reliable performance of the display panel product.

[0039] In addition, in the embodiment of the present invention, the film layer where the first touch electrode 11 and the second touch electrode 12 are located is located on the side of the film layer where the first connection pattern 12 (i.e., the bridge pattern) is located away from the substrate. That is, from the perspective of the substrate as the base, the touch electrode is on the top and the bridge pattern is on the bottom. The distance between the touch electrode and the light-emitting device is relatively far, which can avoid interference between the display signal and the touch electrode body. In this case, the thickness of the metal layer where the touch electrode is located can be set to be greater than the thickness of the metal layer where the bridge pattern is located, which can help reduce the resistance of the touch electrode.

[0040] In addition, in some embodiments, in certain specific scenarios, the film layer where the first connection pattern 12 is located may be located on a side of the film layer where the first touch electrode 11 and the second touch electrode 12 are located away from the substrate, which is not illustrated in the figure.

[0041] In some embodiments, Figure 3 As shown, the first auxiliary connection pattern 13 and the first connection pattern 12 are located in the same layer, so they are directly contacted and connected, and the electrical connection reliability is higher. In addition, the first auxiliary connection pattern 13 and the first connection pattern 12 can be made in the same process without adding a new process.

[0042] In some embodiments, Figure 1As shown, the first touch electrode 11 includes a first main body 111 and a first branch 112 connected to each other, and the second touch electrode 21 includes a second main body 211 and a second branch 212 connected to each other. The first main body 111 extends along the first direction x, and the second main body 211 extends along the second direction y. Figure 2 From the perspective of FIG. 1 , two first main bodies 111 adjacent in the first direction x are electrically connected through the first connection pattern 12, and two second main bodies 211 adjacent in the second direction y are electrically connected through the second connection pattern 22; two first main bodies 111 adjacent in the first direction x and two second main bodies 211 adjacent in the second direction y jointly define four sub-areas Z, and first branches 112 and second branches 212 are arranged in the sub-areas Z. The extension direction of the first branch 112 intersects with the first direction x and the second direction y, and the first branch 112 at least partially surrounds the second branch 212. Scan lines and data lines are arranged in the display panel, and the scan lines are used to provide scan signals to drive multiple sub-pixels connected thereto, and the data lines are used to provide data signals to control the grayscale brightness displayed by the sub-pixels connected thereto. The extension direction of the scan lines and the extension direction of the data lines intersect each other. Optionally, the first direction x is the same as the extension direction of the scan lines, and the second direction y is the same as the extension direction of the data lines. It is also possible to make the first direction x the same as the extension direction of the data lines, and the second direction y the same as the extension direction of the scan lines.

[0043] In other embodiments, the extension direction of the second branch 212 intersects the first direction x and the second direction y, and the second branch 212 at least partially surrounds the first branch 112. This is not illustrated in the drawings.

[0044] In some embodiments, Figure 5 A partial schematic diagram of another display panel provided by an embodiment of the present invention, such as Figure 5 As shown, the display panel further includes a virtual electrode 30; the virtual electrode 30 is not connected to a potential signal. Figure 5 It can be seen from the top view that along the direction perpendicular to the plane where the substrate 00 is located, at least part of the first auxiliary connection pattern 13 and the virtual electrode 30 are insulated and overlapped. Among them, the virtual electrode 30 can be arranged to be located in the same layer as the first touch electrode 11. The first auxiliary connection pattern 13 and the virtual electrode 30 are arranged to overlap at least partially, so that the metal layer where the first touch electrode 11 is located can be reasonably used. In addition, the use of the virtual electrode 30 can reduce the parasitic capacitance generated between the touch electrode and other conductive film layers in the display panel, and reduce the possibility of abnormalities such as horizontal stripes and dark stripes on the display screen.

[0045] Depend on Figure 3 It can be seen from the top view that the display panel in the embodiment of the present invention includes a plurality of sub-pixels sp located on a substrate, and the sub-pixels sp include organic light emitting diodes or inorganic light emitting diodes. Figure 3 The arrangement of the sub-pixels sp is only schematically shown and is not intended to limit the present invention. Figure 4 From the perspective of FIG. 1 , the sub-pixel sp includes a first electrode 41, a light emitting layer 42 and a second electrode 43. Optionally, the first electrodes 41 of the plurality of sub-pixels sp are isolated from each other, and the second electrodes 43 of the plurality of sub-pixels sp are connected to each other to form a common electrode.

[0046] like Figure 3 As shown, the first auxiliary connection pattern 13 includes at least one opening K. Figure 3 It can be seen from the top view that the opening K overlaps with at least one sub-pixel sp in a direction perpendicular to the plane where the substrate is located. The opening K is equivalent to the hollow area on the first auxiliary connection pattern 13. The opening K is arranged to overlap with at least one sub-pixel sp, which can ensure that the main structure on the first auxiliary connection pattern 13 does not block the light output of the sub-pixel sp.

[0047] In the embodiment of the present invention, the opening K in the first auxiliary connection pattern 13 may be a closed opening or an open opening. Figure 3 In the figure, the opening K in the first auxiliary connection pattern 13 is used as a closed opening for illustration. In other embodiments, Figure 6 A partial schematic diagram of another display panel provided by an embodiment of the present invention. Figure 6 Only two first connection patterns 12 and a first auxiliary connection pattern 13 connected between the two first connection patterns 12 are shown. Figure 6 As shown, the openings K in the first auxiliary connection pattern 13 include closed openings and unclosed openings. If the distance between two adjacent first touch electrodes 11 is large, the span of the two first connection patterns 12 will also increase, and at this time, the first auxiliary connection pattern 13 tends to be set to include more closed openings; if the distance between two adjacent first touch electrodes 11 is close, the span of the two first connection patterns 12 will be correspondingly reduced, and at this time, the first auxiliary connection pattern 13 tends to be set to include more unclosed openings. In other words, the purpose of balanced impedance can be achieved by adjusting the number and ratio of closed openings and unclosed openings included in the first auxiliary connection pattern 13, thereby achieving a better touch effect.

[0048] In some embodiments, the light-emitting layer 42 in the sub-pixel sp includes an organic light-emitting material. An encapsulation layer is provided on a side of the sub-pixel sp away from the substrate 00, and the encapsulation layer is used to isolate water and oxygen and protect the sub-pixel sp. The first touch electrode 11 and the second touch electrode 21 are located on a side of the encapsulation layer away from the sub-pixel sp.

[0049] In some embodiments, Figure 7 A partial schematic diagram of another display panel provided by an embodiment of the present invention, Figure 7 Only two first connection patterns 12 and a first auxiliary connection pattern 13 connected between the two first connection patterns 12 are shown. Figure 7 As shown, the first auxiliary connection pattern 13 includes at least one first auxiliary connection line 131 extending along the second direction y, and the first auxiliary connection line 131 is a wavy line. Such a setting can design the first auxiliary connection line 131 to be routed between adjacent sub-pixels, ensuring that the first auxiliary connection line 131 does not affect the light output of the sub-pixel.

[0050] like Figure 3 As shown, the first auxiliary connection pattern 13 includes at least two first auxiliary connection lines 131, and the at least two first auxiliary connection lines 131 are electrically connected to form at least one grid W; a grid W is equivalent to a closed opening. It can be understood that in the top view, the grid W coincides with its orthographic projection on the substrate, and the sub-pixel sp coincides with its orthographic projection on the substrate. Figure 3 It can be seen from the top view that the orthographic projection of the grid W on the substrate encloses the orthographic projection of at least one sub-pixel sp on the substrate. The grid on the first auxiliary connection pattern 13 can increase the connection path between two adjacent first connection patterns 12, and improve the reliability of the electrical connection performance between two adjacent first touch electrodes 11. In addition, it can also prevent the grid wiring from blocking the light output of the sub-pixel sp, thereby ensuring the light output efficiency of the sub-pixel sp.

[0051] In some embodiments, Figure 3 As shown, two first auxiliary connection lines 131 are electrically connected to form a plurality of grids W arranged along the second direction y; the orthographic projection of the grid W on the substrate encloses the orthographic projection of a sub-pixel sp on the substrate. Such an arrangement enables the first auxiliary connection pattern 13 formed by the two first auxiliary connection lines 131 to occupy a relatively small space in the first direction x. Since the extension direction of the first auxiliary connection line 131 is the same as the extension direction of the second connection pattern 22, when the two are arranged in different layers, the first auxiliary connection pattern 13 occupies a relatively small space in the first direction x, which can minimize the overlapping area between the first auxiliary connection line 131 and the second connection pattern 22, or can achieve that the two do not overlap in the direction perpendicular to the plane where the substrate is located, which can reduce the impact on the touch detection performance.

[0052] In other embodiments, Figure 8 A partial schematic diagram of another display panel provided by an embodiment of the present invention. Figure 8 Only the first connection pattern 12, the first auxiliary connection pattern 13, and the sub-pixel sp at a local position are shown. Figure 8As shown, a plurality of first auxiliary connection lines 131 in the first auxiliary connection pattern 13 are electrically connected to form a plurality of grids W. The first auxiliary connection pattern 13 includes not only grids W arranged along the second direction y, but also grids arranged along the first direction x. In this way, a plurality of intersecting connection paths can be formed in the first auxiliary connection pattern 13.

[0053] In other embodiments, Fig. 9 A partial schematic diagram of another display panel provided by an embodiment of the present invention. Fig. 9 Only the first connection pattern 12, the first auxiliary connection pattern 13, and the sub-pixel sp at a local position are shown. Fig. 9 As shown, at least two first auxiliary connection lines 131 in the first auxiliary connection pattern 13 are electrically connected to form at least one grid W. Fig. 9 It can be seen from the top view that the orthographic projection of a part of the grid W on the substrate encloses the orthographic projection of four sub-pixels sp on the substrate, and the orthographic projection of a part of the grid W on the substrate encloses the orthographic projection of one sub-pixel sp on the substrate.

[0054] In some embodiments, a display panel includes a first metal layer and a second metal layer. Fig.10 A partial schematic diagram of a first metal layer in another display panel provided by an embodiment of the present invention, Fig.11 A partial schematic diagram of a second metal layer in another display panel provided by an embodiment of the present invention, Fig.12 for Fig.10 The first metal layer and Fig.11 Schematic diagram of the second metal layer stacking. Fig.10 As shown, the first connection pattern 12 and the first auxiliary connection pattern 13 are located in the first metal layer M1. Fig.11 As shown, the first touch electrode 11, the second touch electrode 21, and the second connection pattern 22 are located in the second metal layer, wherein the second connection pattern 22 is a grid pattern formed by mutually intersecting wiring. Such an arrangement allows more connection paths in the second connection pattern 22 extending along the second direction y, which can ensure the reliability of the connection performance between two adjacent second touch electrodes 21. It can also reduce the impedance of the second connection pattern 22, so that there will not be too large impedance mutation at the connection position of two adjacent touch electrodes 21, thereby ensuring the overall electrical performance of the second touch electrode group is stable.

[0055] Optionally, an orthographic projection of a grid in the second connection pattern 22 on the substrate closes and surrounds an orthographic projection of at least one sub-pixel sp on the substrate.

[0056] In addition, combined Fig.10 and Fig.12 From a perspective of FIG. 1 , along a direction perpendicular to the plane of the substrate, the first auxiliary connection pattern 13 and the second connection pattern 22 at least partially overlap.

[0057] In other embodiments, Fig.13 A partial schematic diagram of another display panel provided by an embodiment of the present invention, such as Fig.13 As shown, the second connection pattern 22 includes at least two sub-connection patterns 221 extending along the second direction y, and two adjacent sub-connection patterns 221 are electrically connected through at least one second auxiliary connection pattern 23. Adjacent sub-connection patterns 221 are patterns separated from each other, and each sub-connection pattern 221 can independently realize the electrical connection between two adjacent second touch electrodes 21 in the second direction y. In the embodiment of the present invention, two sub-connection patterns 221 are arranged to be electrically connected through at least one second auxiliary connection pattern 23, which can increase the connection path between the two second touch electrodes 21, make the electrical connection between the two adjacent second touch electrodes 21 more stable, improve the stability of the electrical performance of the touch electrodes, and thus ensure the reliable performance of the display panel product.

[0058] Fig.13 2 shows that two sub-connection patterns 221 are electrically connected through two second auxiliary connection patterns 23. It can be seen that the two sub-connection patterns 221 and the two second auxiliary connection patterns 23 together form a grid. In this way, the two sub-connection patterns 221 and the two second auxiliary connection patterns 23 are interconnected, thereby increasing the connection path between the two second touch electrodes 21.

[0059] Understandably, Fig.12 The schematic second connection pattern 22 is a grid pattern formed by mutually intersecting wirings. Fig.12 The solution of the embodiment can also be considered that the second connection pattern 22 includes a sub-connection pattern 221 extending along the second direction y, two adjacent sub-connection patterns 221 are electrically connected through at least one second auxiliary connection pattern 23, and the sub-connection pattern 221 and the second auxiliary connection pattern 23 are interconnected to form a grid pattern.

[0060] like Fig.13 As shown, a dummy electrode 30 is provided between the sub-connection pattern 221 and the first touch electrode 11. The sub-connection pattern 221 and the first touch electrode 11 are located in the same film layer, and the dummy electrode 30 is provided between the two. On the one hand, the two can be insulated from each other and the possibility of unnecessary capacitance being formed between the two can be reduced. On the other hand, the dummy electrode 30 can also reduce the parasitic capacitance generated between the touch electrode and other conductive film layers in the display panel, and reduce the possibility of abnormalities such as horizontal stripes and dark stripes on the display screen.

[0061] In other embodiments, Fig.14 A partial schematic diagram of another display panel provided by an embodiment of the present invention. Fig.14As shown, the second connection pattern 22 includes a sub-connection pattern 221 extending along the second direction y, two adjacent sub-connection patterns 221 are electrically connected through at least one second auxiliary connection pattern 23, and the sub-connection pattern 221 has at least one first grid W1. Among them, the positive projection of the first grid W1 on the substrate closes and surrounds the positive projection of at least one sub-pixel on the substrate. The sub-connection pattern 221 is provided with the first grid W1, which can increase the connection path between the two second touch electrodes 21, making the electrical connection performance more stable and reliable. In addition, the impedance of the sub-connection pattern 221 can be reduced, thereby balancing the impedance between the second connection pattern 22 and the second touch electrode 21, so that there will be no excessive impedance mutation at the connection position of the two adjacent touch electrodes 21, thereby ensuring the overall electrical performance of the second touch electrode group is stable, and a better touch effect can be achieved.

[0062] In some embodiments, Fig.15 A partial schematic diagram of another display panel provided by an embodiment of the present invention. Fig.15 As shown, a dummy electrode 30 is disposed between two adjacent sub-connection patterns 221, and the dummy electrode 20 and the sub-connection pattern 221 are located in the same film layer. Such an arrangement can reasonably utilize the space between two adjacent sub-connection patterns 221, and the use of the dummy electrode 30 can also reduce the parasitic capacitance generated between the touch electrode and other conductive film layers in the display panel.

[0063] In addition, by Fig.15 It can be seen from the top view that in a direction perpendicular to the plane where the substrate is located, the first auxiliary connection pattern 13 and the dummy electrode 30 at least partially overlap.

[0064] In some embodiments, Fig.13 or Fig.15 As shown, the sub-connection pattern 221 is a wavy line. The second auxiliary connection pattern 23 is connected between the two wavy lines. This arrangement allows the sub-connection pattern 221 to be designed to be routed between adjacent sub-pixels, ensuring that the sub-connection pattern 221 does not affect the light output of the sub-pixels.

[0065] In the embodiment of the present invention, the second auxiliary connection pattern 23 and the sub-connection pattern 221 are located in the same layer, so the two are directly contacted and connected, and the electrical connection reliability is higher. In addition, the second auxiliary connection pattern 23 and the sub-connection pattern 221 can be made in the same process without adding a new process.

[0066] Depend on Fig.13It can be seen from the top view that along the direction perpendicular to the plane where the substrate is located, the second auxiliary connection pattern 23 and the first auxiliary connection pattern 13 are at least partially insulated and overlapped. That is, the second auxiliary connection pattern 23 extending along the first direction x crosses the area overlapping with the first auxiliary connection pattern 13 to realize the electrical connection between the two sub-connection patterns 221. The second auxiliary connection pattern 23 and the first auxiliary connection pattern 13 are arranged to be at least partially insulated and overlapped, so that the second auxiliary connection pattern 23 and the first auxiliary connection pattern 13 can be arranged between adjacent sub-pixels, thereby avoiding interference with the light output of the sub-pixels.

[0067] In some embodiments, Fig.13 As shown, the second auxiliary connection pattern 23 does not include a closed grid. This arrangement can reduce the insulation overlap area between the second auxiliary connection pattern 23 and the first auxiliary connection pattern 13, thereby reducing the parasitic capacitance formed by the overlap between the two and reducing the adverse effects on touch performance.

[0068] In some embodiments, Fig.13 It can be seen from the schematic top view that the orthographic projection of the first auxiliary connection pattern 13 on the substrate is located between the orthographic projections of the two sub-connection patterns 221 on the substrate. Such a configuration can reduce the insulation overlap area between the first auxiliary connection pattern 13 and the second connection pattern 21, thereby reducing the parasitic capacitance formed by the overlap between the two, and can reduce the adverse effects on touch performance.

[0069] In some embodiments, Fig.16 A partial schematic diagram of another display panel provided by an embodiment of the present invention, such as Fig.16 As shown, the first touch electrode 11 includes a first main body 111 and a first branch 112 connected to each other, and the second touch electrode 21 includes a second main body 211 and a second branch 212 connected to each other, and the first branch 112 at least partially surrounds the second branch 212 for illustration. The display panel also includes a virtual electrode 30, and the virtual electrode 30 is provided at least between the first branch 112 and the second branch 212. On the one hand, the virtual electrode 30 plays an insulating role between the first branch 112 and the second branch 212, so that the first touch electrode 11 and the second touch electrode 21 are insulated from each other; on the other hand, the virtual electrode 30 can also reduce the parasitic capacitance generated between the touch electrode and other conductive film layers in the display panel, and reduce the possibility of abnormalities such as horizontal stripes and dark stripes on the display screen.

[0070] In other embodiments, a virtual electrode 30 is disposed in the first branch 112 and / or the second branch 212 .

[0071] In some other embodiments, a virtual electrode 30 is disposed in the first body portion 111 and / or the second body portion 211 .

[0072] In addition, if Figure 3 In the embodiment, two first connection patterns 12 are connected between two adjacent first touch electrodes 11 , and the two first connection patterns 12 are symmetrical in the first direction x. Figure 3 In the embodiment, the first connection pattern 12 includes a closed second grid W2, and the orthographic projection of the second grid W2 on the substrate closes and surrounds the orthographic projection of a sub-pixel sp on the substrate. Such a setting can balance the impedance of the first connection pattern 12, so that there will be no large impedance mutation at the electrical connection position of the two first touch electrodes 11, and a better touch effect can be achieved.

[0073] In other embodiments, Fig.17 A partial schematic diagram of another display panel provided by an embodiment of the present invention. Fig.17 As shown, two first touch control electrodes 11 adjacent to each other in the first direction x are electrically connected via two first connection patterns 12, and a first auxiliary connection pattern 13 extending along the second direction y is connected between the two first connection patterns 12. Fig.17 It can be seen that the first connection pattern 12 does not include a closed grid, but the first auxiliary connection pattern 13 includes a closed grid, and a closed grid is also formed between the first connection pattern 12 and the first auxiliary connection pattern 13 .

[0074] In addition, it should be noted that different embodiments of the present invention respectively illustrate specific technical features, such as some embodiments illustrate the graphic shape and other related features of the first connection pattern 12, some embodiments illustrate the image shape and other related features of the first auxiliary connection pattern 13, some embodiments illustrate the related features of the second connection pattern 21, and some embodiments illustrate the related features of the sub-connection pattern 211 and the second auxiliary connection pattern 23. Under the premise of no contradiction, the above technical features can be combined with each other to form a new technical solution, and the technical solutions formed by the combination of the above technical features are all within the scope of protection of the present invention.

[0075] Based on the same inventive concept, an embodiment of the present invention further provides a display device, Fig.18 A schematic diagram of a display device provided by an embodiment of the present invention is shown in FIG. Fig.18 As shown, the display device includes a display panel 100 provided by any embodiment of the present invention. The structure of the display panel has been described in the above embodiment and will not be repeated here. The display device provided by the embodiment of the present invention can be, for example, a mobile phone, a tablet, a computer, a television, a smart wearable product, and other electronic devices with display functions.

[0076] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, 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 display panel, characterized in that: include: substrate; A plurality of first touch electrode groups extending along a first direction and arranged along a second direction, and a plurality of second touch electrode groups extending along the second direction and arranged along the first direction, located on one side of the substrate; the first direction and the second direction intersect; The first touch electrode group includes first touch electrodes and first connection patterns, and two adjacent first touch electrodes are electrically connected via at least two of the first connection patterns; The second touch electrode group includes second touch electrodes and a second connection pattern, and two adjacent second touch electrodes are electrically connected via the second connection pattern; Wherein, the two first connection patterns are electrically connected through at least one first auxiliary connection pattern.

2. The display panel according to claim 1, characterized in that: The first touch electrode, the second touch electrode, and the second connection pattern are located in the same layer, and the first connection pattern and the first touch electrode are located in different layers.

3. The display panel according to claim 1, characterized in that: The first auxiliary connection pattern and the first connection pattern are located in the same layer.

4. The display panel according to claim 1, characterized in that: Virtual electrodes are also included; Along a direction perpendicular to the plane where the substrate is located, at least a portion of the first auxiliary connection pattern and the dummy electrode are insulated and overlapped.

5. The display panel according to claim 1, characterized in that: Also includes a plurality of sub-pixels located on one side of the substrate, The first auxiliary connection pattern includes at least one opening; along a direction perpendicular to a plane where the substrate is located, the opening overlaps with at least one of the sub-pixels.

6. The display panel according to claim 1, characterized in that: The first auxiliary connection pattern includes at least one first auxiliary connection line extending along the second direction, and the first auxiliary connection line is a wavy line.

7. The display panel according to claim 6, characterized in that: The first auxiliary connection pattern includes at least two first auxiliary connection lines, and the at least two first auxiliary connection lines are electrically connected to form at least one grid; The display panel includes a plurality of sub-pixels located on one side of the substrate, and the grid has an orthographic projection on the substrate that encloses and surrounds at least one of the sub-pixels.

8. The display panel according to claim 7, characterized in that: The two first auxiliary connection lines are electrically connected to form a plurality of the grids arranged along the second direction; the orthographic projection of the grids on the substrate encloses the orthographic projection of one sub-pixel on the substrate.

9. The display panel according to claim 1, characterized in that: The second connection pattern is a grid pattern formed by mutually intersecting wirings.

10. The display panel according to claim 1, characterized in that: The second connection pattern includes at least two sub-connection patterns extending along the second direction, and two adjacent sub-connection patterns are electrically connected through at least one second auxiliary connection pattern.

11. The display panel according to claim 10, characterized in that: Virtual electrodes are also included; The dummy electrode is disposed between the sub-connection pattern and the first touch electrode.

12. The display panel according to claim 10, characterized in that: Virtual electrodes are also included; The dummy electrode is arranged between two adjacent sub-connection patterns.

13. The display panel according to claim 10, characterized in that: The sub-connection pattern is a wavy routing line.

14. The display panel according to claim 10, characterized in that: The second auxiliary connection pattern and the sub-connection pattern are located in the same layer.

15. The display panel according to claim 10, characterized in that: Along a direction perpendicular to a plane where the substrate is located, the second auxiliary connection pattern and the first auxiliary connection pattern are at least partially insulated and overlapped.

16. The display panel according to claim 10, characterized in that: The second auxiliary connection pattern does not include a closed grid.

17. The display panel according to claim 10, characterized in that: An orthographic projection of the first auxiliary connection pattern on the substrate is located between orthographic projections of the two sub-connection patterns on the substrate.

18. The display panel according to claim 1, characterized in that: The first touch electrode comprises a first main body portion and a first branch portion connected to each other, the second touch electrode comprises a second main body portion and a second branch portion connected to each other, the first main body portion extends along the first direction, and the second main body portion extends along the second direction; Two first main body parts adjacent to each other in the first direction are electrically connected via the first connection pattern, and two second main body parts adjacent to each other in the second direction are electrically connected via the second connection pattern; Two adjacent first main bodies in the first direction and two adjacent second main bodies in the second direction jointly define four sub-areas, and the first branches and the second branches are arranged in the sub-areas; The extension direction of the first branch intersects the first direction and the second direction, and the second branch at least partially surrounds the first branch; Alternatively, the extension direction of the second branch intersects with the first direction and intersects with the second direction, and the first branch at least partially surrounds the second branch.

19. The display panel according to claim 18, characterized in that: Virtual electrodes are also included; The dummy electrode is provided at least between the first branch and the second branch.

20. A display device, characterized in that: A display panel comprising any one of claims 1 to 19.

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