Touch structure, display panel and touch display device

Abstract

The present disclosure provides a touch structure, a display panel and a touch display device. The touch structure comprises: a metal grid comprising a plurality of metal wires; wherein the metal grid has a plurality of open units, each of the open units comprises at least three openings, each of the openings is surrounded by a plurality of metal wires, and the plurality of metal wires surrounding each of the openings has at least three different extension directions; at least one of the metal wires used to divide the openings in the open unit is different from the extension direction of each of the metal wires surrounding the outer boundary of the open unit.

Description

Technical Field

[0001] This disclosure relates to the field of display technology, and more particularly to a touch structure, display panel, and touch display device. Background Technology

[0002] With the continuous development of electronic products, display panels with touch and display functions can realize simple and flexible human-computer interaction, and are therefore widely used. The structure of touch display panels includes, for example, one-glass solution (OGS) display panels, on-cell display panels, and in-cell display panels. Summary of the Invention

[0003] This disclosure provides a touch structure, a display panel, and a touch display device. The touch structure includes:

[0004] The touch structure includes:

[0005] Metal mesh, comprising multiple metal wires;

[0006] The metal mesh has multiple opening units, each opening unit including at least three openings, each opening being surrounded by multiple metal wires, and the multiple metal wires surrounding each opening having at least three different extension directions; at least one of the metal wires used to divide the openings within the opening unit has a different extension direction from the metal wires surrounding the outer boundary of the opening unit.

[0007] In one possible implementation, the number of metal wires forming the outer boundary of the opening unit is greater than the number of metal wires inside the opening unit.

[0008] In one possible implementation, the metal wires surrounding the outer boundary of the opening unit include at least one pair of metal wires extending in the same direction.

[0009] In one possible implementation, the outer boundary of the opening unit is a parallelogram.

[0010] In one possible implementation, the metal wires surrounding the outer boundary of the opening unit include: two first metal wires arranged opposite to each other and parallel to each other, two second metal wires arranged opposite to each other and parallel to each other, and two third metal wires arranged opposite to each other and parallel to each other, wherein one of the second metal wires connects one of the first metal wires and one of the third metal wires, and the other second metal wire connects another of the first metal wires and another of the third metal wires.

[0011] In one possible implementation, the length of the third metal wire is greater than the length of the first metal wire, and the length of the first metal wire is greater than the length of the second metal wire.

[0012] In one possible implementation, the second metal wire is perpendicular to the connected third metal wire.

[0013] In one possible implementation, within the opening unit, the first angle formed by the first metal wire and the connected second metal wire is the same as the second angle formed by the first metal wire and the connected third metal wire.

[0014] In one possible implementation, within the opening unit, the first included angle formed by the first metal wire and the connected second metal wire ranges from 120° to 150°.

[0015] In one possible implementation, the opening unit includes: two fourth metal wires extending perpendicular to the first metal wire from the midpoint of the first metal wire, and two fifth metal wires extending parallel to the second metal wire and connecting the other end of the fourth metal wire to the midpoint of the third metal wire.

[0016] In one possible implementation, the length of the fourth metal wire is half the length of the first metal wire; the length of the fifth metal wire is equal to the length of the second metal wire.

[0017] In one possible implementation, the outer boundary of the opening unit is cross-shaped.

[0018] In one possible implementation, the opening unit includes: two opposing first protrusions extending in a distancing direction along a first direction, and two opposing second protrusions extending in a distancing direction along a second direction; the first direction is perpendicular to the second direction.

[0019] In one possible implementation, the outer boundary of the first protrusion includes: two sixth metal wires extending along the first direction, and a seventh metal wire connecting the two sixth metal wires and extending along the second direction.

[0020] The outer boundary of the second protrusion includes: two eighth metal wires extending along the second direction, and a ninth metal wire connecting the two eighth metal wires and extending along the first direction; the sixth metal wire of the first protrusion intersects with the eighth metal wire of the adjacent second protrusion at a first node.

[0021] In one possible implementation, the length of the sixth metal wire is greater than the length of the seventh metal wire, and the length of the eighth metal wire is greater than the length of the ninth metal wire.

[0022] In one possible implementation, the opening unit includes: a tenth metal wire connecting two non-adjacent first nodes of adjacent first protrusions and second protrusions, and an eleventh metal wire connecting the midpoint of the tenth metal wire to a first node on one side of the tenth metal wire.

[0023] In one possible implementation, the opening unit includes: a first sub-opening unit and a second sub-opening unit, wherein the first sub-opening unit and the second sub-opening unit are mirror-symmetric structures, and two first sub-opening units and two second sub-opening units form a repeating unit.

[0024] Within the repeating unit, two first sub-opening units are connected by sharing an opening to form a first assembly C1; two second sub-opening units are connected by sharing an opening to form a second assembly.

[0025] The first assembly is multiplexed with the metal wires of two different second sub-opening units through two adjacent metal wires at its outer boundary to form repeating units Z.

[0026] In one possible implementation, the outer boundary of the opening unit is rectangular.

[0027] In one possible implementation, the metal wires surrounding the outer boundary of the opening unit include: two twelfth metal wires extending in a third direction and arranged opposite to each other, and two thirteenth metal wires extending in a third direction and arranged opposite to each other, wherein one of the thirteenth metal wires is connected to one end of the two twelfth metal wires respectively, and the other thirteenth metal wire is connected to the other end of the two twelfth metal wires respectively.

[0028] The opening unit includes: a fourteenth metal wire extending inward from a point on the thirteenth metal wire, and a fifteenth metal wire connecting the two opposite twelfth metal wires, with the other end of the fourteenth metal wire connected to a point on the fifteenth metal wire;

[0029] At least one of the fourteenth and fifteenth metal wires is neither parallel to the third direction nor parallel to the fourth direction.

[0030] In one possible implementation, the fifteenth metal wire is a straight line segment.

[0031] In one possible implementation, the fifteenth metal wire comprises two sub-metal wires extending in different directions.

[0032] In one possible implementation, the angle between one of the sub-metal wires and the fourth direction is a third angle, and the angle between the other sub-metal wire and the fourth direction is a fourth angle, wherein the third angle and the fourth angle are not equal.

[0033] In one possible implementation, the third included angle ranges from 10° to 45°, and the fourth included angle ranges from 10° to 45°.

[0034] This disclosure also provides a display panel, comprising: a substrate, a display functional layer located on one side of the substrate, and a touch structure as described in this disclosure located on the side of the display functional layer opposite to the substrate; wherein the display functional layer includes a plurality of sub-pixels, and at least one of the openings is projected onto the substrate in a projection that surrounds at least one of the sub-pixels in a projection that surrounds the projection of the sub-pixel onto the substrate.

[0035] In one possible implementation, the sub-pixels correspond one-to-one with the openings, and at least some of the sub-pixels have orthographic projections onto the substrate that are similar in shape to the orthographic projections of the openings onto the substrate.

[0036] In one possible implementation, the orthogonal projection of a portion of the sub-pixel onto the substrate extends beyond the orthogonal projection of the opening onto the substrate.

[0037] In one possible implementation, the sub-pixel includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel;

[0038] Within the overlapping unit, two first sub-opening units are connected by reusing the opening where the green sub-pixel is located; two second sub-opening units are connected by reusing the opening where the green sub-pixel is located.

[0039] In one possible implementation, the blue sub-pixel includes a first blue sub-pixel and a second blue sub-pixel.

[0040] In one possible implementation, the orthographic projection of the first blue sub-pixel onto the substrate and the orthographic projection of the second blue sub-pixel onto the substrate are respectively located within the orthographic projections of the adjacent first protrusion onto the substrate and the second protrusion onto the substrate.

[0041] In one possible implementation, the first blue sub-pixel and the second blue sub-pixel are integrally connected.

[0042] In one possible implementation, the first blue sub-pixel and the second blue sub-pixel are separate structures.

[0043] In one possible implementation, the orthographic projection of the first blue sub-pixel onto the substrate and the orthographic projection of the second blue sub-pixel onto the substrate are respectively located within the orthographic projections of the two first protrusions onto the substrate.

[0044] This disclosure also provides a touch display device, which includes the display panel as described in this disclosure. Attached Figure Description

[0045] Figure 1A One of the schematic diagrams of the touch structure provided in the embodiments of this disclosure;

[0046] Figure 1B for Figure 1A An enlarged schematic diagram of one of the open elements;

[0047] Figure 1C for Figure 1A An enlarged schematic diagram of another open unit in the diagram;

[0048] Figure 1D for Figure 1A An enlarged schematic diagram of one of the repeating units;

[0049] Figure 1E for Figure 1A A schematic diagram of the touch structure when sub-pixels are set in the middle;

[0050] Figure 1F for Figure 1E An enlarged schematic diagram of one of the open elements;

[0051] Figure 1G for Figure 1E An enlarged schematic diagram of another open unit in the diagram;

[0052] Figure 1H for Figure 1E An enlarged schematic diagram of one of the repeating units;

[0053] Figure 1I for Figure 1A An enlarged schematic diagram of another type of open unit when setting sub-pixels in a touch structure;

[0054] Figure 2A This is a second schematic diagram of the touch structure provided in the embodiments of this disclosure;

[0055] Figure 2B for Figure 2A An enlarged schematic diagram of one of the open elements;

[0056] Figure 2C for Figure 2A An enlarged schematic diagram of another open unit in the diagram;

[0057] Figure 2D for Figure 2A An enlarged schematic diagram of one of the repeating units;

[0058] Figure 2E for Figure 2A A schematic diagram of the touch structure when sub-pixels are set in the middle;

[0059] Figure 2F for Figure 2E An enlarged schematic diagram of one of the open elements;

[0060] Figure 2G for Figure 2E An enlarged schematic diagram of one of the repeating units;

[0061] Figure 2H for Figure 2A An enlarged schematic diagram of another type of open unit when setting sub-pixels in a touch structure;

[0062] Figure 2I for Figure 2A An enlarged schematic diagram of another repeating unit when setting sub-pixels in a touch structure;

[0063] Figure 2J for Figure 2A An enlarged schematic diagram of another type of open unit when setting sub-pixels in a touch structure;

[0064] Figure 2K for Figure 2A An enlarged schematic diagram of another repeating unit when setting sub-pixels in a touch structure;

[0065] Figure 3A This is the third schematic diagram of the touch structure provided in the embodiments of this disclosure;

[0066] Figure 3B for Figure 3A An enlarged schematic diagram of one of the open elements;

[0067] Figure 3C for Figure 3A An enlarged schematic diagram of another open unit in the diagram;

[0068] Figure 3D for Figure 3A An enlarged schematic diagram of another open unit in the diagram;

[0069] Figure 3E for Figure 3A A schematic diagram of the touch structure when sub-pixels are set in the middle;

[0070] Figure 3F for Figure 3E An enlarged schematic diagram of one of the open elements;

[0071] Figure 3G for Figure 3E An enlarged schematic diagram of another open unit in the diagram;

[0072] Figure 3H for Figure 3E An enlarged schematic diagram of another open unit in the diagram;

[0073] Figure 4 The reflected light path diagram is for symmetrical openings;

[0074] Figure 5 This is a schematic diagram of the boundary of the touch electrode;

[0075] Figure 6 A top view of a touch electrode according to some embodiments;

[0076] Figure 7 A top view of the driving electrode and the sensing electrode according to some embodiments;

[0077] Figure 8 For touch structure according to some embodiments along Figure 7 A sectional view of line AA' in the middle;

[0078] Figure 9 For touch structure according to some embodiments along Figure 7 A sectional view of the middle BB' line;

[0079] Figure 10 This is a partial cross-sectional view of a display panel according to some embodiments;

[0080] Figure 11 A cross-sectional view of a display panel according to some embodiments;

[0081] Figure 12 A cross-sectional view of a touch display device according to some embodiments;

[0082] Figure 13 This is another cross-sectional view of a touch display device according to some embodiments. Detailed Implementation

[0083] The technical solutions in some embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments provided in this disclosure are within the scope of protection of this disclosure.

[0084] Unless the context otherwise requires, throughout the specification and claims, the term "comprise" and its other forms, such as the third-person singular "comprises" and the present participle "comprising," are interpreted as open-ended and encompassing, meaning "including, but not limited to." In the description of the specification, terms such as "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific example," or "some examples," etc., are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this disclosure. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics mentioned may be included in any suitable manner in any one or more embodiments or examples.

[0085] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0086] In describing some embodiments, the terms "electrical connection" and "connection" and their derivative expressions may be used. For example, the term "point connection" may be used in describing some embodiments to indicate that two or more components have direct physical or electrical contact with each other. The embodiments disclosed herein are not necessarily limited to the content of this document.

[0087] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.

[0088] The use of “configured as” in this article implies an open and inclusive language that does not exclude the applicability to or configuration of devices to perform additional tasks or steps.

[0089] In addition, the use of “based on” implies openness and inclusivity, because processes, steps, calculations or other actions “based on” one or more of the stated conditions or values ​​may in practice be based on additional conditions or values ​​beyond those stated.

[0090] As used herein, “approximate” or “roughly” includes the stated value and the average value within an acceptable range of deviation from the given value, wherein the acceptable range of deviation is determined by a person skilled in the art taking into account the measurement under discussion and the error associated with the measurement of the given quantity (i.e., the limitations of the measurement system).

[0091] This document describes exemplary embodiments with reference to cross-sectional views and / or plan views, which are idealized exemplary drawings. In the drawings, the thickness of layers and regions is enlarged for clarity. Therefore, variations in shape relative to the drawings are contemplated due to, for example, manufacturing techniques and / or tolerances. Thus, exemplary embodiments should not be construed as limited to the shapes of the regions shown herein, but rather include shape deviations due to, for example, manufacturing processes. For example, etched regions shown as rectangular would typically have curved features. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to show the actual shapes of the regions of the device, nor are they intended to limit the scope of the exemplary embodiments.

[0092] With the rapid development of AMOLED (Active Matrix Organic Light-Emitting Diode) display devices, full-screen, narrow bezel, high resolution, rollable wearable, and foldable technologies have become important development directions for AMOLED in the future.

[0093] Among them, the technology of directly fabricating touch structures on the encapsulation layer of OLED (Organic Light-Emitting Diode) display panels can produce lighter and thinner touch panels, and this technology can be applied to foldable and rollable OLED display devices.

[0094] To reduce resistance and improve touch sensitivity, the touch electrodes in the touch structure utilize metal mesh, which offers advantages such as low resistance, small thickness, and fast response speed. In related technologies, touch structures fabricated directly on the encapsulation layer of the display panel include two types: Flexible Metal Layer On Cell (FMLOC) and Flexible Single Layer On Cell (FSLOC). FSLOC is easier to thin than FMLOC.

[0095] like Figure 4 As shown, Figure 4The diagram shows a cross-section of a metal wire forming a metal mesh. Under strong light in the dark, the light that hits the surface 01 of the metal wire is blocked by the polarizer attached to the display panel and cannot enter the human eye. However, the light that hits the side wall 02 of the metal wire cannot be blocked by the polarizer and will enter the human eye. As a result, there will be a difference in light between the areas with metal wires and the areas without metal wires, causing the human eye to see bright and dark patterns.

[0096] Based on this, such as Figure 11 As shown, some embodiments of this disclosure provide a display panel 900, including a display substrate 200, an encapsulation layer 250 located on the light-emitting side of the display substrate 200, and a touch structure 1000 located on the side of the encapsulation layer 250 facing away from the display substrate 200. The display panel 900 is applied to a touch display device, such as... Figure 12 and Figure 13 As shown. The touch display device can be an electroluminescent display device or a photoluminescent display device. When the display device is an electroluminescent display device, it can be an organic light-emitting diode (OLED), a quantum dot light-emitting diode (QLED), a liquid crystal display (LCD), or an electrophoretic display (EPD). When the touch display device is a photoluminescent display device, it can be a quantum dot photoluminescent display device.

[0097] Exemplary embodiments of this disclosure are described using OLED display devices, but should be considered as not being limited to OLED display devices. In some embodiments, such as Figure 12 and Figure 13 As shown, the main structure of the touch display device includes a display panel 900, a touch structure 1000, an anti-reflective structure such as a polarizer 500, a first optically clear adhesive (OCA) layer 600, and a cover plate 300 arranged sequentially. In some embodiments, the anti-reflective structure may include a color filter and a black matrix. The location of the anti-reflective structure is not limited to the above description and may be located between the encapsulation layer and the display substrate, or other feasible locations.

[0098] The display panel 900 includes a display substrate 200 and an encapsulation layer 250 for encapsulating the display substrate 200. Here, the encapsulation layer 250 can be an encapsulation film or an encapsulation substrate.

[0099] In some embodiments, such as Figure 12As shown, the touch structure 1000 of the display panel 900 is directly disposed on the encapsulation layer 250, so the display substrate 200 can be regarded as the substrate of the touch structure 1000. This structure is conducive to achieving a thinner and lighter display device.

[0100] In some embodiments, the encapsulation layer 250 may include a first inorganic encapsulation layer, a first organic encapsulation layer, and a second inorganic encapsulation layer, or it may be a stacked structure of at least one organic layer and at least one inorganic layer. In some embodiments, an anti-reflective structure may be formed in the encapsulation layer 250 to provide anti-reflection protection, while also further reducing the thickness of the display device.

[0101] In other embodiments, such as Figure 13 As shown, the touch structure 1000 of the display panel 900 is disposed on the substrate 910, and the substrate 910 is attached to the encapsulation layer 250 through the second optical adhesive layer 920. The material of the substrate 910 may be, for example, polyethylene terephthalate (PET), polyimide (PI), cycloolefin polymer (COP), etc.

[0102] like Figure 10 , Figure 11 , Figure 12 and Figure 13 As shown, each sub-pixel 211 of the display substrate 200 includes a light-emitting device and a driving circuit disposed on the substrate 210. The driving circuit includes a plurality of thin-film transistors 270. The light-emitting device includes an anode 222, a light-emitting layer 223, and a cathode 224. The anode 222 and the drain of the thin-film transistor 270 serving as the driving transistor in the plurality of thin-film transistors 270 of the driving circuit are electrically connected.

[0103] In some embodiments, when the anode 222 and the drain of the thin-film transistor 270 serving as the driving transistor among the plurality of thin-film transistors 270 of the driving circuit are electrically connected, they are also electrically connected through a transfer electrode located between the film layer where the drain is located and the film layer where the anode is located.

[0104] The display substrate 200 also includes a pixel defining layer 225, which includes a plurality of light emission ports 225A, with one light emission device corresponding to one light emission port 225A.

[0105] In some embodiments, the display functional layer 220 includes a light-emitting layer 223. In other embodiments, in addition to the light-emitting layer 223, the display functional layer 220 also includes one or more of an electron transport layer (ETL), an electron injection layer (EIL), a hole transport layer (HTL), and a hole injection layer (HIL).

[0106] like Figure 12 and Figure 13 As shown, the display substrate 200 also includes at least one planarization layer 230 disposed between the thin-film transistor 270 and the anode 222. In some embodiments, the planarization layer 230 further includes at least one passivation layer.

[0107] When the touch display device is an electroluminescent display device, it can be a top-emitting display device, in which case the anode 222 near the substrate 210 is opaque and the cathode 224 away from the substrate 210 is transparent or semi-transparent; the touch display device can also be a bottom-emitting display device, in which case the anode 222 near the substrate 210 is transparent or semi-transparent and the cathode 224 away from the substrate 210 is opaque; the touch display device can also be a double-sided emitting display device, in which case both the anode 222 near the substrate 210 and the cathode 224 away from the substrate 210 are transparent or semi-transparent.

[0108] See Figures 1A-1D , Figures 2A-2D , Figures 3A-3D As shown, this embodiment of the disclosure provides a touch structure 1000, including:

[0109] Metal mesh 100, which includes multiple metal wires 110;

[0110] The metal mesh 100 has a plurality of opening units 120, each opening unit 120 including at least three openings 100A, each opening 100A being surrounded by a plurality of metal wires 110, and the plurality of metal wires 110 surrounding each opening 100A having at least three different extending directions; at least one metal wire 110 used to divide the openings within the opening unit 120 has a different extending direction from the metal wires 100 surrounding the outer boundary of the opening unit 120. Specifically, for example, combined with Figure 1B or Figure 1CAs shown, the extension direction of each metal wire 100 forming the outer boundary of the opening unit 120 is horizontal or oblique. The multiple metal wires 110 used to divide the opening 100A within the opening unit 120 include vertical metal wires 110, whose extension direction differs from that of the metal wires 100 forming the outer boundary of the opening unit 120. For example, in conjunction with... Figure 2B or Figure 2C As shown, the extension direction of each metal wire 100 forming the outer boundary of the opening unit 120 is oblique. The multiple metal wires 110 used to divide the opening 100A within the opening unit 120 include vertical metal wires 110, whose extension direction differs from that of the metal wires 100 forming the outer boundary of the opening unit 120. For example, in conjunction with... Figures 3B-3D As shown, the extension direction of each metal wire 100 that forms the outer boundary of the opening unit 120 is horizontal or vertical. The multiple metal wires 110 used to divide the opening 100A inside the opening unit 120 include oblique metal wires 110, which have different extension directions from the metal wires 100 that form the outer boundary of the opening unit 120.

[0111] The touch area of ​​the touch structure 1000 can overlap with the display area AA (also known as the active display area) in the display substrate 200.

[0112] In this embodiment, when the multiple metal wires surrounding each opening have at least three different extending directions, and at least one metal wire 110 used to divide the opening within the opening unit 120 has a different extending direction from the metal wires 100 surrounding the outer boundary of the opening unit 120, incident light in one direction is reflected by the opening, resulting in more directions of reflected light. The light in each reflection direction is more dispersed, achieving a scattering-like effect, reducing the reflection brightness, and decreasing the degree of reflection difference perceived by the human eye. Furthermore, increasing the number of metal wires surrounding each opening allows for more selective cuts at the boundary between the touch electrodes (Tx and Rx) due to the increased number and direction of the metal wires, thereby minimizing the degree of reflection difference (touch mura) perceived by the human eye at the boundary.

[0113] Therefore, by setting the shape of the opening 100A to have at least three different extension directions for the multiple metal wires 110 surrounding each opening 100A, and at least one metal wire 110 used to divide the opening within the opening unit 120 having an extension direction different from that of each metal wire 100 surrounding the outer boundary of the opening unit 120, the extension directions of the metal wires 110 in the metal grid 100 can be increased, thereby increasing the overall reflected light direction of the metal grid 100, achieving or approaching the effect of light scattering, eliminating or reducing the phenomenon of continuous reflected light in the same direction of the metal grid 100, reducing the degree of reflection difference perceived by the human eye, and improving the display effect.

[0114] In addition, when external light shines on the display panel, the reflection of external light by the metal mesh 100 near the surface of the touch structure 1000 is the main cause of the Mura phenomenon (uneven brightness display, displaying various marks). Some embodiments of this disclosure achieve a scattering effect of reflected light by setting the shape of the opening 100A to have multiple metal wires 110 surrounding each opening 100A having at least three different extension directions, which can also eliminate or reduce the Mura phenomenon of the display panel 900 and improve the display effect of the display panel 900.

[0115] In one possible implementation, the number of metal wires 110 forming the outer boundary of the opening unit 120 is greater than the number of metal wires 110 inside the opening unit 120. Specifically, for example, in combination with Figure 1B and Figure 1C As shown, the metal wires 110 surrounding the outer boundary of the opening unit 120 include: two a1, two a2, and two a3, totaling six metal wires 110. The metal wires 110 inside the opening unit 120 include: two a4 and two a5, totaling four metal wires 110. The number of metal wires 110 surrounding the outer boundary of the opening unit 120 is greater than the number of metal wires 110 inside the opening unit 120. For example, combined with... Figure 2B and Figure 2C As shown, the metal wires 110 surrounding the outer boundary of the opening unit 120 include: four a6 wires, two a7 wires, four a8 wires, and two a9 wires, totaling 12 metal wires 110. The metal wires 110 inside the opening unit 120 include: one a10 wire and one a11 wire, totaling 2 metal wires 110. The number of metal wires 110 surrounding the outer boundary of the opening unit 120 is greater than the number of metal wires 110 inside the opening unit 120. For example, combined with... Figures 3B-3DAs shown, the metal wires 110 surrounding the outer boundary of the opening unit 120 include: two a12 and two a13, totaling four metal wires 110. The metal wires 110 inside the opening unit 120 include: one a14, one or two a15, up to three metal wires 110. The number of metal wires 110 surrounding the outer boundary of the opening unit 120 is greater than the number of metal wires 110 inside the opening unit 120.

[0116] In one possible implementation, the metal wires 110 surrounding the outer boundary of the opening unit 120 include at least a pair of metal wires 110 extending in the same direction. Specifically, for example, combined with Figure 1B and Figure 1C As shown, among the metal wires 110 that form the outer boundary of the opening unit 120, there are three pairs of metal wires 110 extending in the same direction: two a1, two a2, and two a3. For example, combined with... Figure 2B and Figure 2C As shown, among the metal wires 110 that form the outer boundary of the open unit 120, there are four a6, two a7, four a8, and two a9, totaling six pairs of metal wires 110 extending in the same direction; for example, combined with Figures 3B-3D As shown, among the metal wires 110 that form the outer boundary of the opening unit 120, there are two pairs of metal wires 110 extending in the same direction, namely two a12 and two a13.

[0117] In one possible implementation, Figures 1A-1D As shown, the outer boundary of the opening unit 120 is a parallelogram. In this embodiment, the outer boundary of the opening unit 120 is a parallelogram, which facilitates the seamless splicing of multiple opening units 120 to form a tightly arranged structure, and also forms multiple tightly arranged openings 100A. Since the openings 100A usually correspond one-to-one with sub-pixels, this also enables the sub-pixels to be arranged tightly, thereby arranging more sub-pixels in a limited area and improving the resolution of the display device.

[0118] In one possible implementation, Figure 1B and Figure 1C As shown, the metal wires 110 forming the outer boundary of the opening unit 120 include: two first metal wires a1 arranged opposite to each other and parallel to each other; two second metal wires a2 arranged opposite to each other and parallel to each other; and two third metal wires a3 arranged opposite to each other and parallel to each other. One second metal wire a2 connects one first metal wire a1 and one third metal wire a3, and the other second metal wire a2 connects another first metal wire a1 and another third metal wire a3. Specifically, for example... Figure 1BIn the middle, the second metal wire a2 on the left connects the first metal wire a1 above and the third metal wire a3 on the lower left, and the second metal wire a2 on the right connects the first metal wire a1 below and the third metal wire a3 on the upper right.

[0119] In one possible implementation, Figure 1B and Figure 1C As shown, the length L3 of the third metal wire a3 is greater than the length L1 of the first metal wire a1, and the length L1 of the first metal wire a1 is greater than the length L2 of the second metal wire a2.

[0120] In one possible implementation, Figure 1B and Figure 1C As shown, the second metal wire a2 is perpendicular to the connected third metal wire a3.

[0121] In one possible implementation, Figure 1B and Figure 1C As shown, within the opening unit 120, the first included angle β1 formed by the first metal wire a1 and the connected second metal wire a2 is the same as the second included angle β2 formed by the first metal wire a1 and the connected third metal wire a3.

[0122] In one possible implementation, Figure 1B and Figure 1C As shown, within the opening unit 120, the first included angle β1 formed by the first metal wire a1 and the connected second metal wire a2 ranges from 120° to 150°. In one possible embodiment, the included angle β1 formed by the first metal wire a1 and the connected second metal wire a2 is 135°. In this embodiment, the included angle β1 formed by the first metal wire a1 and the connected second metal wire a2 within the opening unit 120 ranges from 120° to 150°. In actual manufacturing, this angle is relatively easy to manufacture, which helps simplify the manufacturing process of the touch structure.

[0123] Furthermore, when the angle β1 formed by the first metal wire a1 and the connected second metal wire a2 is 135°, if the direction of the first metal wire a1 is set to the direction of 0°, then the second metal wire a2 is arranged at a 45° angle, the fourth metal wire a4 is arranged vertically at 90°, and the third metal wire a3 is arranged at a 135° angle. This staggered arrangement ensures that the opening bending design at the boundary of the touch electrodes (Tx and Rx) is beneficial (e.g., Figure 5 As shown by the bold dashed line and the bold solid line, when Tx and Rx are separated at 45° and 135° diagonally, it is more conducive to designing with openings at non-boundary locations. From the perspective of opening design, dark-state reflection (MURA) can be avoided, reducing the degree of reflection difference perceived by the human eye.

[0124] In one possible implementation, Figure 1B and Figure 1C As shown, the opening unit 120 includes: two fourth metal wires a4 extending perpendicularly to the midpoint of the first metal wire a1, and two fifth metal wires a5 extending parallel to the second metal wire a2 and connecting the other end of the fourth metal wire a4 to the midpoint of the third metal wire a3. This allows the opening unit 120 to form two pentagonal openings 100A and one octagonal opening 100A, creating three openings 100A with different areas. This allows for different areas of the sub-pixels when three sub-pixels are configured. For example, the octagonal opening 100A can be used for a blue sub-pixel, while the two pentagonal openings 100A can be used for a red and a green sub-pixel, respectively. Due to material limitations, the blue sub-pixel has a shorter lifespan and lower brightness. By using a larger area for the blue sub-pixel, it is beneficial to balance the brightness and lifespan of sub-pixels emitting different colors in the display device. In addition, the human eye has different sensitivities to color, specifically: green > red > blue. For this reason, by designing that the area of ​​the blue sub-pixel B is larger than the area of ​​the red sub-pixel R, and the area of ​​the red sub-pixel R is larger than the area of ​​the green sub-pixel G, it is possible to achieve a balance in the human eye's perception of various colors of light, reduce sub-pixel redundancy, and improve aperture ratio and resolution.

[0125] In one possible implementation, Figure 1B and Figure 1C As shown, the length of the fourth metal wire a4 is half the length L1 of the first metal wire a1; the length of the fifth metal wire a5 is equal to the length L2 of the second metal wire a2.

[0126] In one possible implementation, Figure 2B and Figure 2C As shown, the outer boundary of the opening unit 120 is cross-shaped. In this embodiment, the cross-shaped outer boundary of the opening unit 120 facilitates the seamless splicing of multiple opening units 120 to form a tightly arranged structure, and also forms multiple tightly arranged openings 100A. Since the openings 100A usually correspond one-to-one with sub-pixels, this also enables the sub-pixels to be arranged tightly, thereby arranging more sub-pixels in a limited area and improving the resolution of the display device.

[0127] In one possible implementation, Figure 2B and Figure 2C As shown, the opening unit 120 includes: two opposing first protrusions b1 extending in opposite directions along a first direction X1, and two opposing second protrusions b2 extending in opposite directions along a second direction X2; the first direction X1 is perpendicular to the second direction X2.

[0128] In one possible implementation, the first direction X1 can be a vertical direction at 45° when arranged with the repeating unit Z, and the second direction X2 can be a row direction at 45° when arranged with the repeating unit Z.

[0129] In one possible implementation, Figure 2B and Figure 2C As shown, the outer boundary of the first protrusion b1 includes: two sixth metal wires a6 extending along the first direction X1, and a seventh metal wire a7 connecting the two sixth metal wires a6 and extending along the second direction X2; the outer boundary of the second protrusion b2 includes: two eighth metal wires a8 extending along the second direction X2, and a ninth metal wire a9 connecting the two eighth metal wires a8 and extending along the first direction X1; the sixth metal wires a6 of the first protrusion b1 intersect with the eighth metal wires a8 of the adjacent second protrusion b2 at the first node A1.

[0130] In one possible implementation, Figure 2B and Figure 2C As shown, the length of the sixth metal wire a6 is greater than the length of the seventh metal wire a7, and the length of the eighth metal wire s8 is greater than the length of the ninth metal wire a9.

[0131] In one possible implementation, Figure 2B and Figure 2C As shown, the opening unit 120 includes: a tenth metal wire a10 connecting two non-adjacent first nodes A1 of adjacent first protrusions b1 and second protrusions b2, and an eleventh metal wire a11 connecting the midpoint of the tenth metal wire a10 with a first node A1 on one side of the tenth metal wire a10.

[0132] In one possible implementation, see Figures 1A-1D , Figures 2A-2D As shown, the opening unit 120 includes: a first sub-opening unit 1201 and a second sub-opening unit 1202. The first sub-opening unit 1201 and the second sub-opening unit 1202 are mirror-symmetric structures. The two first sub-opening units 1201 and the two second sub-opening units 1202 form a repeating unit Z. Within the repeating unit Z, the two first sub-opening units 1201 are connected by sharing an opening to form a first assembly. The two second sub-opening units 1202 are connected by sharing an opening to form a second assembly. The first assembly is multiplexed with the metal wires 110 of the two different second sub-opening units 1202 through two adjacent metal wires on its outer boundary to form the repeating unit Z.

[0133] In one possible implementation, the metal wires inside the reused opening in the repeating unit Z may not be necessary, such as... Figure 1D or Figure 2D The position indicated by the dashed line inside the central opening.

[0134] In one possible implementation, see Figures 3A-3D As shown, the outer boundary of the opening unit 120 is rectangular. In this embodiment, the rectangular outer boundary of the opening unit 120 facilitates the seamless splicing of multiple opening units 120 to form a tightly arranged structure, and also forms multiple tightly arranged openings 100A. Since the openings 100A usually correspond one-to-one with sub-pixels, this also enables the sub-pixels to be arranged tightly, thereby arranging more sub-pixels in a limited area and improving the resolution of the display device.

[0135] In one possible implementation, see Figures 3B-3D As shown, the metal wires 110 forming the outer boundary of the opening unit 120 include: two twelfth metal wires a12 extending along a third direction X3 and arranged opposite each other, and two thirteenth metal wires a13 extending along a fourth direction X4 and arranged opposite each other, wherein one thirteenth metal wire a13 is connected to one end of each of the two twelfth metal wires a12, and the other thirteenth metal wire a13 is connected to the other end of each of the two twelfth metal wires a12; specifically, for example, the left thirteenth metal wire a13 is connected to the left and right ends of the upper and lower twelfth metal wires a12 respectively. The thirteenth metal wire a13 on the right side is connected to the right ends of the upper and lower twelfth metal wires a12 respectively; the opening unit 120 includes: a fourteenth metal wire a14 extending inward from a point on the thirteenth metal wire a13, and a fifteenth metal wire a15 connecting the two opposite twelfth metal wires a12, the other end of the fourteenth metal wire a14 being connected to a point on the fifteenth metal wire a15; at least one of the fourteenth metal wire a14 and the fifteenth metal wire a15 is neither parallel to a third direction nor parallel to a fourth direction.

[0136] In one possible implementation, see Figure 3C As shown, the fifteenth metal wire a15 is a straight line segment.

[0137] In one possible implementation, see Figure 3B and Figure 3D As shown, the fifteenth metal wire a15 includes two sub-metal wires a150 extending in different directions.

[0138] In one possible implementation, see Figure 3B and Figure 3DAs shown, one sub-metal wire a150 forms a third angle β3 with the fourth direction X4, while the other sub-metal wire forms a fourth angle β4 with the fourth direction. The third angle β3 and the fourth angle β4 are not equal. This creates two sub-metal wires with different extending directions, which helps to increase the direction of reflected light.

[0139] In one possible implementation, see Figure 3B and Figure 3D As shown, the range of the third included angle β3 is 10° to 45°, and the range of the fourth included angle β4 is 10° to 45°.

[0140] For example, in combination Figures 3B-3D As shown, by adjusting the lengths of W1-W5, the aperture ratios of the three sub-pixels R, G, and B are differentiated, thereby ensuring better display quality.

[0141] In some embodiments, the material of the metal wire 110 includes at least one of copper (Cu), silver (Ag), nano-carbon, or graphene. Taking silver as an example, the silver can refer to elemental silver, nano-silver, or other structural forms of silver; in addition, the material of the metal wire 110 can also be a compound containing silver, which is not limited here.

[0142] Taking the metal wire 110 as an example, which includes copper and nano-carbon, copper can refer to elemental copper, nano-copper, or other structural forms of copper; nano-carbon can refer to carbon nanotubes, carbon nanofibers, or nano-carbon spheres, etc. The material of the metal wire 110 can include a mixture of any of the above-mentioned copper forms and any of the above-mentioned nano-carbon forms.

[0143] In some embodiments, such as Figure 6 As shown, the touch structure may include a plurality of touch electrodes 410, each touch electrode 410 including a metal mesh, and the plurality of touch electrodes are configured to be independently connected to the touch chip.

[0144] Multiple touch electrodes 410 are insulated from each other and are arranged in the display area. The multiple touch electrodes 410 can have the same shape. The shape of the touch electrode 410 can be rhomboid or approximately rhomboid. "Approximately rhomboid" means that the shape of the touch electrode 410 is generally rhomboid, but it is not limited to a standard rhomboid. For example, the boundary of the touch electrode 410 is allowed to be non-linear (e.g., serrated).

[0145] In addition, the shape of the touch electrode 410 is not limited to a rhombus or roughly a rhombus shape, but can also be rectangular, elongated, etc.

[0146] The touch electrode 410 includes a metal mesh, meaning that each touch electrode adopts a metal mesh structure. Compared to using ITO (Indium Tin Oxide) to form a planar electrode as the touch electrode 410, the touch electrode 410 with a metal mesh structure has lower resistance and higher sensitivity, which can improve the touch sensitivity of the touch display panel. Furthermore, the touch electrode 410 with a metal mesh structure has high mechanical strength, which can reduce the weight of the touch display panel, enabling the display device to be made thinner and lighter when the touch display panel is used in a display device.

[0147] Multiple touch electrodes 410, including a metal mesh structure, can be disposed on the same metal layer, i.e., an FSLOC structure, which facilitates the thinning and lightening of the display device.

[0148] Each touch electrode 410 is independently electrically connected to the touch chip. The touch chip provides voltage to the touch electrode 410, allowing each touch electrode 410 to independently form a capacitance with ground. The touch point within the display area is then determined by sensing changes in these multiple capacitances.

[0149] The metal wires of the metal mesh in the touch electrode 410 can be aligned with the gaps between the light-emitting areas 221A of multiple sub-pixels 221 in the display area, thereby preventing the metal mesh from blocking the light from being emitted and ensuring the luminous efficiency of the display device.

[0150] In some embodiments, such as Figure 7 As shown, the touch structure may include multiple driving units 510 and multiple sensing units 520 that are insulated from each other. Each driving unit 510 includes multiple driving electrodes 511 arranged in parallel along a third direction X3, and a first connection portion 512 electrically connecting two adjacent driving electrodes 511. Each sensing unit 520 includes multiple sensing electrodes 521 arranged in parallel along a fourth direction X4, and a second connection portion 522 electrically connecting two adjacent sensing electrodes 521. The third direction X3 and the fourth direction X4 intersect. Specifically, the third direction X3 can be a row direction formed by the arrangement of the driving electrodes 511, or a column direction formed by the arrangement of the driving electrodes 511.

[0151] like Figure 8 and Figure 9 As shown, the touch structure includes a first metal layer 610, an insulating layer 620 and a second metal layer 630 stacked in sequence, and the insulating layer 620 has a plurality of vias 621.

[0152] For example, the driving electrode 511, the first connection portion 512 and the sensing electrode 521 are located in one of the first metal layer 610 and the second metal layer 630, and the second connection portion 522 is located in the other of the first metal layer 610 and the second metal layer 630, and the second connection portion 522 is electrically connected to two adjacent sensing electrodes 521 through a via 621.

[0153] For example, the driving electrode 511, the second connection portion 522 and the sensing electrode 521 are located in one of the first metal layer 610 and the second metal layer 630, and the first connection portion 512 is located in the other of the first metal layer 610 and the second metal layer 630, and the first connection portion 512 is electrically connected to two adjacent driving electrodes 511 through a via 621.

[0154] For example, the driving electrode 511, the sensing electrode 521, the first connecting portion 512, and the second connecting portion 522 include a metal mesh. The opening shape and related arrangement of the metal mesh adopt the design of the above embodiments, which increases the direction of reflected light from the touch structure 1000, reduces the amount of reflected light in each direction, achieves a scattering-like effect, makes the reflected light imperceptible to the human eye, thereby eliminating or reducing the degree of reflection difference perceived by the human eye and improving the display effect.

[0155] like Figure 7 As shown, the third direction X3 and the fourth direction X4 are intersected, for example, the third direction X3 and the fourth direction X4 can be perpendicular to each other. For example, the third direction X3 can be the horizontal direction of the touch display device, and the fourth direction X4 can be the vertical direction of the touch display device; or, the third direction X3 can be the row direction of the pixel arrangement of the touch display device, and the fourth direction X4 can be the column direction of the pixel arrangement of the touch display device.

[0156] It should be noted that the multiple figures in this disclosure are only illustrated with the third direction X3 as the horizontal direction and the fourth direction X4 as the vertical direction. In this disclosure, the technical solution obtained by rotating the figures by 90 degrees is also within the protection scope of this disclosure.

[0157] The first connecting portion 512 and the second connecting portion 522 are located on different metal layers of the touch structure at least at the intersection position. That is, at the intersection position, one of the first connecting portion 512 and the second connecting portion 522 is located on the first metal layer 610 and the other is located on the second metal layer 630. The first connecting portion 512 and the second connecting portion 522 are separated by an insulating layer 620 at the intersection position to prevent crosstalk of the touch signals transmitted on the first connecting portion 512 and the second connecting portion 522.

[0158] For example, the first connection portion 512 is located in the first metal layer 610, and two driving electrodes 511 located in the first metal layer 610 and adjacent along the first direction X are directly connected through the first connection portion 512; the second connection portion 522 is located in the second metal layer 630, and two sensing electrodes 521 located in the first metal layer 610 and adjacent along the second direction Y are respectively connected to the second connection portion 522 through different vias 621 in the insulating layer 620, thereby realizing the connection of the two sensing electrodes 521.

[0159] For example, such as Figure 7 , Figure 8 and Figure 9 As shown, the first connection portion 512 is located in the second metal layer 630. Two driving electrodes 511 located in the first metal layer 610 and adjacent along the first direction X are connected to the first connection portion 512 through different vias 621 in the insulating layer 620, thereby connecting the two driving electrodes 511. The second connection portion 522 is located in the first metal layer 610. Two sensing electrodes 521 located in the first metal layer 610 and adjacent along the second direction Y are directly connected through the second connection portion 522.

[0160] The second connection portion 522 is located in the first metal layer 610. Two sensing electrodes 521 located in the first metal layer 610 and adjacent along the second direction Y are directly connected through the second connection portion 522. The first connection portion 512 is located in the second metal layer 630. Two driving electrodes 511 located in the first metal layer 610 and adjacent along the first direction X are respectively connected to the first connection portion 512 through different vias 621 in the insulating layer 620, thereby realizing the connection of the two driving electrodes 511.

[0161] It should be noted that, Figure 8 and Figure 9 This description only illustrates the case where the driving electrode 511, the second connecting portion 522, and the sensing electrode 521 are located in the first metal layer 610, and the first connecting portion 512 is located in the second metal layer 630. The electrical connection methods and structural patterns in other cases can be derived without question using the same method and principle. Furthermore, the driving electrode 511 and the sensing electrode 521 are filled with different patterns to distinguish them as different electrodes. The driving electrode 511 and the sensing electrode 521 can be made of the same material and formed using the same process.

[0162] In some embodiments, the area of ​​the driving electrode 511 and / or the sensing electrode 521 can be 9 mm² to 25 mm², that is, at least one of the driving electrode 511 and the sensing electrode 521 has an area of ​​9 mm² to 25 mm². Specifically, the area of ​​9 mm² to 25 mm² can be 10 mm², 12 mm², 14 mm², 16 mm², 20 mm², or 23 mm². When the driving electrode 511 is rhomboid in shape, the lengths of its two sides can be 3 mm to 5 mm, for example, 3.2 mm, 3.8 mm, 4 mm, 4.3 mm, or 4.7 mm. For example, one side of the rhombus driving electrode has a length of 3.8 mm and the other side has a length of 4.7 mm; or, one side of the rhombus driving electrode has a length of 4 mm and the other side has a length of 4.5 mm.

[0163] In display devices with a pixel density >500 PPI (Pixels Per Inch), touch electrodes arranged in an array with a side length <0.3 mm that is imperceptible to the human eye can be formed through the opening design of the metal mesh, eliminating the display defect of reflection difference between the driving electrodes composed of 3-5 mm side lengths. For medium and large-sized display devices with a pixel density <400 PPI, due to the large light-emitting area of ​​the sub-pixels, the opening of the metal mesh 100 is limited by the resistive-capacitive load. The side length of the smallest touch electrode formed by the opening 100A is generally greater than 0.3 mm, which is easily perceived by the human eye as a display defect of reflection difference. In the exemplary embodiment of this disclosure, the touch structure 1000 adopts an opening design with multiple metal edges forming an asymmetrical shape. When illuminated by strong light, the metal mesh forms multi-directional reflections, achieving a scattering-like effect, thereby eliminating the reflection difference of the metal mesh 100.

[0164] In some embodiments, the linewidth of the metal conductor 110 can be 1 μm to 20 μm, for example, 2 μm, 3.5 μm, 4.7 μm, 8 μm, 15 μm, or 18 μm. The linewidth of the metal conductor 110 refers to the width perpendicular to the extension direction of the metal conductor 110. For example, when the metal conductor 110 is a straight metal conductor 110L, the width of the metal conductor 110 is the width of its cross-section; when the metal conductor 110 is an arc metal conductor 110H, the width of the metal conductor 110 is the width of the cross-section, which is perpendicular to the tangent direction at the cut location.

[0165] Based on the same inventive concept, see [link to inventive concept] Figure 10 and Figure 11As shown, this disclosure also provides a display panel, comprising: a substrate 210, a display functional layer 220 located on one side of the substrate, and a touch structure 1000 as provided in this disclosure, located on the side of the display functional layer 220 facing away from the substrate; wherein, combined with Figure 1E-Figure 1H , Figures 2E-2K , Figures 3E-3H As shown, the display functional layer 200 includes a plurality of sub-pixels 221, and at least one opening 100A in the orthographic projection of the substrate 210 at least surrounds the orthographic projection of one sub-pixel 221 in the substrate 220.

[0166] The touch structure 1000 can be located on the light-emitting side of the display function layer 220.

[0167] like Figure 10 As shown, the display functional layer 220 includes a light-emitting device 240. An encapsulation layer 250 covers the light-emitting device 240, and a touch structure 1000 is formed on the encapsulation layer 250. In some embodiments, if an anti-reflective structure (e.g., a circular polarizer) is also included on the light-emitting side of the display functional layer 220, the touch structure 1000 is formed between the encapsulation layer 250 and the anti-reflective structure, and the metal mesh 100 can be directly formed on the surface of the encapsulation layer 250, i.e., there are no other film layers between the metal mesh 100 and the surface of the encapsulation layer 250.

[0168] The substrate 210 can be an organic substrate or an inorganic substrate. The material of the substrate 210 can be polyethylene terephthalate (PET), polyimide (PI), cycloolefin polymer (COP), etc.

[0169] The display functional layer 220 may include multiple functional film layers forming sub-pixels 221, such as the film layers forming thin-film transistors 270, anode 222, light-emitting layer 223, cathode 224, etc. The light-emitting area 221A of sub-pixels 221 can be understood as the effective light-emitting surface of sub-pixels 221, and the outline of the light-emitting area 221A of each sub-pixel 221 has at least three different extending directions.

[0170] In some embodiments, such as Figure 10 and Figure 11 As shown, the display function layer 200 includes: a pixel defining layer 225, which has multiple light emission ports 225A, each light emission port 225A defining a light emission area 221A of a sub-pixel; the shape of the light emission port 225A is approximately the same as the shape of the light emission area 221A of the sub-pixel 221.

[0171] The pixel defining layer 225 has a grid-like structure, with multiple light-emitting ports 225A enclosed by baffles. Each sub-pixel region has one light-emitting port 225A, which is configured to define the light-emitting area 221A of the sub-pixel 221. Light emitted from the light-emitting layer 223 passes through the light-emitting port 225A to reach the light-emitting area 221A. Therefore, the shape of the light-emitting port 225A is approximately the same as the shape of the light-emitting area 221A of the sub-pixel 221.

[0172] In the pixel defining layer 225, the light emission ports 221A of the light emission area 221A of the sub-pixel 221 configured with the same color can have the same shape, while the light emission ports 225A of the light emission area 221A of the sub-pixel 221 configured with different colors can have different shapes.

[0173] In one possible implementation, combined with Figure 1E-Figure 1H , Figures 2E-2K , Figures 3E-3H As shown, sub-pixels 221 correspond one-to-one with openings 100A, and at least some sub-pixels 221 have a similar shape to the orthographic projection of openings 100A onto substrate 210.

[0174] In one possible implementation, combined with Figure 1E-Figure 1H , Figures 2E-2K , Figures 3E-3H As shown, the orthographic projection of some sub-pixels 221 onto the substrate 210 extends beyond the orthographic projection of the opening 100A onto the substrate 210. Specifically, for example, the orthographic projection of the green sub-pixel G onto the substrate 210 extends beyond the orthographic projection of the opening 100A onto the substrate 210.

[0175] In one possible implementation, combined with Figure 1E-Figure 1H , Figures 2E-2K As shown, sub-pixel 221 includes red sub-pixel R, green sub-pixel G, and blue sub-pixel B; within the overlapping unit Z, two first sub-opening units 1201 are connected by reusing the opening where a green sub-pixel G is located; two second sub-opening units 1202 are connected by reusing the opening where a green sub-pixel is located.

[0176] In one possible implementation, combined with Figure 1F-Figure 1I , Figures 2F-2K As shown, the blue sub-pixel B includes a first blue sub-pixel B1 and a second blue sub-pixel B2.

[0177] In one possible implementation, Figures 2F-2I As shown, the orthographic projection of the first blue sub-pixel B1 onto the substrate 210 and the orthographic projection of the second blue sub-pixel B2 onto the substrate 210 are respectively located within the orthographic projection of the adjacent first protrusion b1 onto the substrate 210 and the orthographic projection of the second protrusion b2 onto the substrate 210.

[0178] In one possible implementation, Figure 1F , Figure 1G , Figure 2F As shown, the first blue sub-pixel B1 and the second blue sub-pixel B2 are connected as a single unit.

[0179] In one possible implementation, Figure 1I , Figures 2H-2K As shown, the first blue sub-pixel B1 and the second blue sub-pixel B2 are separate structures.

[0180] In one possible implementation, Figure 2J-Figure 2K As shown, the orthographic projection of the first blue sub-pixel B1 onto the substrate 210 and the orthographic projection of the second blue sub-pixel B2 onto the substrate 210 are respectively located within the orthographic projections of the two first protrusions b1 onto the substrate 210.

[0181] Based on the same inventive concept, this disclosure also provides a touch display device, which includes a display panel as provided in the embodiments of this disclosure. The beneficial effects that the touch display device can achieve are the same as those that the display panel 900 in the above embodiments can achieve. The structure of the touch display device has been described above and will not be repeated here.

[0182] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0183] Obviously, those skilled in the art can make various modifications and variations to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if these modifications and variations to the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and variations.

Claims

1. A touch structure, comprising: Metal mesh, comprising multiple metal wires; The metal mesh has multiple opening units, each opening unit including at least three openings, each opening being surrounded by multiple metal wires, wherein the multiple metal wires include metal wires for dividing the openings within the opening unit and metal wires for forming the outer boundary of the opening unit, and the multiple metal wires forming each opening have at least three different extending directions; at least one of the metal wires for dividing the openings within the opening unit has a different extending direction from any of the metal wires forming the outer boundary of the opening unit.

2. The touch structure as described in claim 1, wherein, The number of metal wires forming the outer boundary of the opening unit is greater than the number of metal wires inside the opening unit.

3. The touch structure as described in claim 1 or 2, wherein, The metal wires that form the outer boundary of the opening unit include at least one pair of metal wires extending in the same direction.

4. The touch structure as described in claim 3, wherein, The outer boundary of the opening unit is a parallelogram.

5. The touch structure as described in claim 4, wherein, The metal wires forming the outer boundary of the opening unit include: two first metal wires arranged opposite to each other and parallel to each other, two second metal wires arranged opposite to each other and parallel to each other, and two third metal wires arranged opposite to each other and parallel to each other, wherein one of the second metal wires connects one of the first metal wires and one of the third metal wires, and the other second metal wire connects another of the first metal wires and another of the third metal wires.

6. The touch structure as described in claim 5, wherein, The length of the third metal wire is greater than the length of the first metal wire, and the length of the first metal wire is greater than the length of the second metal wire.

7. The touch structure as described in claim 6, wherein, The second metal wire is perpendicular to the connected third metal wire.

8. The touch structure as described in claim 7, wherein, Within the opening unit, the first angle formed by the first metal wire and the connected second metal wire is the same as the second angle formed by the first metal wire and the connected third metal wire.

9. The touch structure as described in claim 8, wherein, Within the opening unit, the first included angle formed by the first metal wire and the connected second metal wire ranges from 120° to 150°.

10. The touch structure according to any one of claims 5-9, wherein, The opening unit includes: two fourth metal wires extending perpendicular to the first metal wire from the midpoint of the first metal wire, and two fifth metal wires extending parallel to the second metal wire and connecting the other end of the fourth metal wire to the midpoint of the third metal wire.

11. The touch structure as described in claim 10, wherein, The length of the fourth metal wire is half the length of the first metal wire; the length of the fifth metal wire is equal to the length of the second metal wire.

12. The touch structure as described in claim 3, wherein, The outer boundary of the opening unit is cross-shaped.

13. The touch structure as described in claim 12, wherein, The opening unit includes: two opposing first protrusions extending in a distancing direction along a first direction, and two opposing second protrusions extending in a distancing direction along a second direction; the first direction is perpendicular to the second direction.

14. The touch structure as described in claim 13, wherein, The outer boundary of the first protrusion includes: two sixth metal wires extending along the first direction, and a seventh metal wire connecting the two sixth metal wires and extending along the second direction. The outer boundary of the second protrusion includes: two eighth metal wires extending along the second direction, and a ninth metal wire connecting the two eighth metal wires and extending along the first direction; the sixth metal wire of the first protrusion intersects with the eighth metal wire of the adjacent second protrusion at a first node.

15. The touch structure as described in claim 14, wherein, The length of the sixth metal wire is greater than the length of the seventh metal wire, and the length of the eighth metal wire is greater than the length of the ninth metal wire.

16. The touch structure as described in claim 14 or 15, wherein, The opening unit includes: a tenth metal wire connecting two non-adjacent first nodes of the adjacent first protrusion and the second protrusion, and an eleventh metal wire connecting the midpoint of the tenth metal wire to a first node on one side of the tenth metal wire.

17. The touch structure as described in claim 4, wherein, The opening unit includes: a first sub-opening unit and a second sub-opening unit, the first sub-opening unit and the second sub-opening unit are mirror symmetrical structures, and two first sub-opening units and two second sub-opening units form a repeating unit; Within the repeating unit, two first sub-opening units are connected by sharing an opening to form a first assembly; two second sub-opening units are connected by sharing an opening to form a second assembly. The first assembly is multiplexed with the metal wires of two different second sub-opening units through two adjacent metal wires at its outer boundary to form repeating units Z.

18. The touch structure as described in claim 3, wherein, The outer boundary of the opening unit is rectangular.

19. The touch structure as described in claim 18, wherein, The metal wires forming the outer boundary of the opening unit include: two twelfth metal wires extending along a third direction and arranged opposite each other, and two thirteenth metal wires extending along a fourth direction and arranged opposite each other, wherein one of the thirteenth metal wires is connected to one end of the two twelfth metal wires respectively, and the other thirteenth metal wire is connected to the other end of the two twelfth metal wires respectively, wherein the third direction and the fourth direction are intersecting. The opening unit includes: a fourteenth metal wire extending inward from a point on the thirteenth metal wire, and a fifteenth metal wire connecting the two opposite twelfth metal wires, with the other end of the fourteenth metal wire connected to a point on the fifteenth metal wire; At least one of the fourteenth and fifteenth metal wires is neither parallel to the third direction nor parallel to the fourth direction.

20. The touch structure as described in claim 19, wherein, The fifteenth metal conductor is a straight line segment.

21. The touch structure as described in claim 19, wherein, The fifteenth metal conductor includes two sub-metal conductors with different extension directions.

22. The touch structure as described in claim 21, wherein, One of the sub-metal wires has a third angle with the fourth direction, and the other sub-metal wire has a fourth angle with the fourth direction. The third angle and the fourth angle are not equal.

23. The touch structure as described in claim 22, wherein, The range of the third included angle is 10° to 45°, and the range of the fourth included angle is 10° to 45°.

24. A display panel, wherein, include: A substrate, a display functional layer located on one side of the substrate, and a touch structure as described in any one of claims 1-23 located on the side of the display functional layer opposite to the substrate; wherein the display functional layer includes a plurality of sub-pixels, and at least one of the openings is projected onto the substrate in a projection that surrounds at least one of the sub-pixels in a projection that surrounds the substrate in a projection that surrounds the substrate in a projection that surrounds the sub-pixel.

25. The display panel as claimed in claim 24, wherein, The sub-pixels correspond one-to-one with the openings, and at least some of the sub-pixels have orthographic projections onto the substrate that are similar in shape to the orthographic projections of the openings onto the substrate.

26. The display panel as claimed in claim 24 or 25, wherein, The orthogonal projection of a portion of the sub-pixel onto the substrate extends beyond the orthogonal projection of the opening onto the substrate.

27. The display panel as claimed in claim 25, wherein, The sub-pixel includes red sub-pixels, green sub-pixels, and blue sub-pixels; Within the overlapping unit, two first sub-opening units are connected by reusing the opening where the green sub-pixel is located; two second sub-opening units are connected by reusing the opening where the green sub-pixel is located.

28. The display panel as claimed in claim 27, wherein, The blue sub-pixel includes a first blue sub-pixel and a second blue sub-pixel.

29. The display panel as claimed in claim 28, wherein, The orthographic projection of the first blue sub-pixel onto the substrate and the orthographic projection of the second blue sub-pixel onto the substrate are respectively located within the orthographic projection of the first protrusion onto the substrate and the orthographic projection of the second protrusion onto the substrate.

30. The display panel as claimed in claim 29, wherein, The first blue sub-pixel and the second blue sub-pixel are connected as a single unit.

31. The display panel as claimed in claim 29, wherein, The first blue sub-pixel and the second blue sub-pixel are separate structures.

32. The display panel as claimed in claim 28, wherein, The orthographic projection of the first blue sub-pixel onto the substrate and the orthographic projection of the second blue sub-pixel onto the substrate are respectively located within the orthographic projections of the two first protrusions onto the substrate.

33. A touch display device, wherein, Includes the display panel as described in any one of claims 24-32.

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