Display panel, touch structure and display device

Abstract

A display panel, a touch structure and a display device. The display panel includes a substrate, a display structure layer and a touch structure layer; the touch structure layer includes a stacked bridge layer, an insulating layer and a touch layer, the touch layer includes a plurality of first touch electrodes and a plurality of first connecting portions sequentially arranged along a first extension direction, and a plurality of second touch electrodes sequentially arranged along a second extension direction; the plurality of first touch electrodes and the plurality of first connecting portions are alternately arranged and sequentially connected, and the plurality of second touch electrodes are spaced apart; the bridge layer includes a connecting bridge, and the connecting bridge is connected to the adjacent second touch electrodes; the touch structure layer includes a plurality of repeating units repeatedly and continuously arranged, and the maximum characteristic length of the repeating unit is S=L*tan(1 / (57.3*CPD)), L is the distance from the viewer's eyes to the display screen, and CPD is the spatial frequency within 1 degree of the viewer's eyes.

Description

Technical Field

[0001] The present disclosure relates to but is not limited to the field of display technology, and in particular to a display panel, a touch structure and a display device. Background Art

[0002] Organic Light Emitting Diode (OLED) is an active light-emitting display device with the advantages of self-luminescence, wide viewing angle, high contrast, low power consumption, and extremely high response speed. With the continuous development of display technology, flexible display devices (Flexible Display) using OLED as the light-emitting device and thin film transistors (TFT) for signal control have become the mainstream products in the current display field.

[0003] Due to the requirements of flexible folding, narrow frame and other products, the touch substrate of OLED adopts the flexible multi-layer on-cell (FMLOC) structure. The flexible touch substrate is set on the encapsulation layer of the OLED backplane, which has the advantages of being thin and light and foldable. Based on the considerations of reducing resistance and improving sensitivity, the driving electrode (Tx) and the sensing electrode (Rx) in the touch substrate adopt the metal mesh form. Compared with the use of transparent conductive materials (such as Indium Tin Oxide, ITO) to form touch electrodes, metal mesh has the advantages of low resistance, small thickness and fast response speed. Summary of the invention

[0004] The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

[0005] On the one hand, the present disclosure provides a display panel, comprising a substrate, a display structure layer disposed on the substrate, and a touch structure layer disposed on the display structure layer; the display structure layer comprises a light-emitting area and a non-light-emitting area, the light-emitting area comprises a plurality of periodically arranged sub-pixels, and the non-light-emitting area comprises a sub-pixel boundary between adjacent sub-pixels; the touch structure layer comprises a plurality of grid patterns, the grid patterns are polygons formed by metal lines, the area enclosed by the orthographic projections of the metal lines on the substrate includes the orthographic projection of at least one sub-pixel on the substrate, and the orthographic projection of the sub-pixel boundary on the substrate includes the orthographic projection of the metal lines on the substrate;

[0006] The touch structure layer includes a stacked bridge layer, an insulating layer and a touch layer, the touch layer includes a plurality of first touch electrodes and a plurality of first connecting portions sequentially arranged along a first extension direction, and a plurality of second touch electrodes sequentially arranged along a second extension direction, the first extension direction intersects the second extension direction; the plurality of first touch electrodes and the plurality of first connecting portions are alternately arranged and sequentially connected, and the plurality of second touch electrodes are spaced apart; the bridge layer includes a connecting bridge, and the connecting bridge is connected to adjacent second touch electrodes;

[0007] The touch structure layer includes a plurality of repeating units that are repeatedly and continuously arranged, and a plurality of cuts are arranged in the plurality of grid patterns of the repeating units, and the cuts cut off the metal wires of the grid patterns; the maximum characteristic length S of the repeating unit is L*tan(1 / (57.3*CPD)); wherein L is the distance from the viewer's eyes to the display screen, CPD is the spatial frequency within 1 degree of the viewer's eyes, L is 100 mm to 1000 mm, CPD is greater than or equal to 10, and the maximum characteristic length of the repeating unit is the maximum dimension of the repeating unit in a certain direction.

[0008] In some possible implementations, when the distance from the viewer's eye to the display screen is 100 mm to 400 mm, the maximum characteristic length of the repeating unit is 0.2 mm to 0.4 mm; when the distance from the viewer's eye to the display screen is 400 mm to 1000 mm, the maximum characteristic length of the repeating unit is 0.4 mm to 1.2 mm.

[0009] In some possible implementations, the grid pattern includes at least two mutually parallel first sides and two mutually parallel second sides, and the first sides are not parallel to the second sides;

[0010] The incisions include continuous incisions, the number of which is less than or equal to 3, and the continuous incisions are formed by incisions on both first sides of each grid pattern in at least one grid pattern continuously arranged in a first direction, and the first direction intersects with the first side of each grid pattern, or the continuous incisions are formed by incisions on both second sides of each grid pattern in at least one grid pattern continuously arranged in a second direction, and the second direction intersects with the second side of each grid pattern.

[0011] In some possible implementations, the cut also includes a corner cut, and when the corner cut has continuous cuts in the first direction or the second direction, the number of cuts in the continuous cuts is less than or equal to 2; the corner cut is a cut set on a first side and a second side of the grid pattern.

[0012] In some possible implementations, when there are multiple corner cuts, the multiple corner cuts form an open figure.

[0013] In some possible implementations, the touch structure layer includes a touch area, a boundary area, and a connecting bridge area, the touch area includes a first touch electrode and a second touch electrode, and the connecting bridge area includes a first connecting portion and a second connecting portion; among the multiple repeating units repeatedly and continuously arranged to form the touch structure layer, the repeating units are divided into a first repeating unit including a cutout in the touch area, a second repeating unit including a cutout in the boundary area, and a third repeating unit including a cutout in the connecting bridge area;

[0014] The ratio of the cut density of the first repeating unit to the cut density of the second repeating unit is 0.7 to 1.3, the ratio of the cut density of the first repeating unit to the cut density of the third repeating unit is 0.7 to 1.3, and the ratio of the cut density of the second repeating unit to the cut density of the third repeating unit is 0.7 to 1.3; the cut density is the ratio of the number of cuts in a repeating unit to the number of grid patterns in the repeating unit.

[0015] In some possible implementations, the incision includes at least a first direction incision that cuts off the first side and a second direction incision that cuts off the second side;

[0016] The ratio of the cut density of the first repeating unit to the cut density of the second repeating unit is 0.7 to 1.3, including any one or more of the following: the ratio of the cut density of the first repeating unit in the first direction to the cut density of the second repeating unit in the first direction is 0.7 to 1.3; the ratio of the cut density of the first repeating unit in the second direction to the cut density of the second repeating unit in the second direction is 0.7 to 1.3;

[0017] The ratio of the incision density of the first repeating unit to the incision density of the third repeating unit is 0.7 to 1.3, including any one or more of the following: the ratio of the incision density in the first direction of the first repeating unit to the incision density in the first direction of the third repeating unit is 0.7 to 1.3; the ratio of the incision density in the second direction of the first repeating unit to the incision density in the second direction of the third repeating unit is 0.7 to 1.3;

[0018] The ratio of the incision density of the second repeating unit to the incision density of the third repeating unit is 0.7 to 1.3, including any one or more of the following: the ratio of the incision density in the first direction of the second repeating unit to the incision density in the first direction of the third repeating unit is 0.7 to 1.3; the ratio of the incision density in the second direction of the second repeating unit to the incision density in the second direction of the third repeating unit is 0.7 to 1.3;

[0019] The first direction cut density is the ratio of the number of first direction cuts in a repeating unit to the number of grid patterns in the repeating unit, and the second direction cut density is the ratio of the number of second direction cuts in a repeating unit to the number of grid patterns in the repeating unit.

[0020] In some possible implementations, the plurality of sub-pixels include a first sub-pixel emitting a first color, a second sub-pixel emitting a second color, and a third sub-pixel emitting a third color; in the first repeating unit, the second repeating unit, and the third repeating unit, the cutouts include a first cutout between the first sub-pixel and the second sub-pixel, a second cutout between the second sub-pixel and the third sub-pixel, and a third cutout between the first sub-pixel and the third sub-pixel;

[0021] In the first repeating unit, the second repeating unit and the third repeating unit, the ratio of the first incision density to the second incision density is 0.7 to 1.3, the ratio of the second incision density to the third incision density is 0.7 to 1.3, and the ratio of the first incision density to the third incision density is 0.7 to 1.3;

[0022] The first incision density is the ratio of the number of first incisions in a repeating unit to the number of grid patterns in the repeating unit, the second incision density is the ratio of the number of second incisions in a repeating unit to the number of grid patterns in the repeating unit, and the third incision density is the ratio of the number of third incisions in a repeating unit to the number of grid patterns in the repeating unit.

[0023] In some possible implementations,

[0024] The ratio of the first cut density to the second cut density is 0.7 to 1.3, including any one or more of the following: the ratio of the first horizontal cut density to the second horizontal cut density is 0.7 to 1.3, the ratio of the first vertical cut density to the second vertical cut density is 0.7 to 1.3, and the ratio of the first oblique cut density to the second oblique cut density is 0.7 to 1.3;

[0025] The ratio of the second incision density to the third incision density is 0.7 to 1.3, including any one or more of the following: the ratio of the second horizontal incision density to the third horizontal incision density is 0.7 to 1.3, the ratio of the second vertical incision density to the third vertical incision density is 0.7 to 1.3, and the ratio of the second oblique incision density to the third oblique incision density is 0.7 to 1.3;

[0026] The ratio of the first incision density to the third incision density is 0.7 to 1.3, including any one or more of the following: the ratio of the first horizontal incision density to the third horizontal incision density is 0.7 to 1.3, the ratio of the first vertical incision density to the third vertical incision density is 0.7 to 1.3, and the ratio of the first inclined incision density to the third inclined incision density is 0.7 to 1.3.

[0027] In some possible implementations,

[0028] The ratio of the first incision density of the first repeating unit to the first incision density of the second repeating unit is 0.7 to 1.3; the ratio of the second incision density of the first repeating unit to the second incision density of the second repeating unit is 0.7 to 1.3; the ratio of the third incision density of the first repeating unit to the third incision density of the second repeating unit is 0.7 to 1.3;

[0029] The ratio of the first incision density of the first repeating unit to the first incision density of the third repeating unit is 0.7 to 1.3; the ratio of the second incision density of the first repeating unit to the second incision density of the third repeating unit is 0.7 to 1.3; the ratio of the third incision density of the first repeating unit to the third incision density of the third repeating unit is 0.7 to 1.3;

[0030] The ratio of the first incision density of the second repeating unit to the first incision density of the third repeating unit is 0.7 to 1.3; the ratio of the second incision density of the second repeating unit to the second incision density of the third repeating unit is 0.7 to 1.3; the ratio of the third incision density of the second repeating unit to the third incision density of the third repeating unit is 0.7 to 1.3.

[0031] In some possible implementations,

[0032] The connecting bridge includes a pad portion and a second connecting line, the pad portion is configured to be connected to an adjacent second touch electrode through a via hole on the insulating layer, and the second connecting line is configured to connect the pad portion;

[0033] The touch layer also includes a second connecting unit and a first connecting line, the second connecting unit and the first connecting line are arranged at intervals and insulated from each other, the position of the second connecting unit corresponds to the position of the pad portion of the bridging layer, and is configured to be connected to the pad portion through a via hole on the insulating layer, and the orthographic projection of the first connecting line on the substrate basically overlaps with the orthographic projection of the second connecting line on the substrate.

[0034] On the other hand, the present disclosure further provides a display device, comprising the aforementioned display panel.

[0035] In another aspect, the present disclosure further provides a touch structure, comprising a stacked bridge layer, an insulating layer and a touch layer, wherein the touch layer comprises a plurality of first touch electrodes and a plurality of first connecting portions sequentially arranged along a first extension direction, and a plurality of second touch electrodes sequentially arranged along a second extension direction, wherein the first extension direction intersects with the second extension direction; the plurality of first touch electrodes and the plurality of first connecting portions are alternately arranged and sequentially connected, and the plurality of second touch electrodes are spaced apart; the bridge layer comprises a connecting bridge, and the connecting bridge is connected to adjacent second touch electrodes;

[0036] The touch structure layer includes a plurality of repeating units that are repeatedly and continuously arranged, and the repeating unit includes a plurality of grid patterns, and the grid pattern is a polygon composed of metal wires. A plurality of incisions are arranged in the plurality of grid patterns, and the incisions cut off the metal wires of the grid patterns; the maximum characteristic length S of the repeating unit is L*tan(1 / (57.3*CPD)); wherein L is the distance from the viewer's eyes to the display screen, CPD is the spatial frequency within 1 degree of the viewer's eyes, L is 100 mm to 1000 mm, CPD is greater than or equal to 10, and the maximum characteristic length of the repeating unit is the maximum dimension of the repeating unit in a certain direction.

[0037] In some possible implementations, when the distance from the viewer's eye to the display screen is 100 mm to 400 mm, the maximum characteristic length of the repeating unit is 0.2 mm to 0.4 mm; when the distance from the viewer's eye to the display screen is 400 mm to 1000 mm, the maximum characteristic length of the repeating unit is 0.4 mm to 1.2 mm.

[0038] In some possible implementations, the grid pattern includes at least two mutually parallel first sides and two mutually parallel second sides, and the first sides are not parallel to the second sides;

[0039] The incisions include continuous incisions, the number of which is less than or equal to 3, and the continuous incisions are formed by incisions on both first sides of each grid pattern in at least one grid pattern continuously arranged in a first direction, and the first direction intersects with the first side of each grid pattern, or by incisions on both second sides of each grid pattern in at least one grid pattern continuously arranged in a second direction, and the second direction intersects with the second side of each grid pattern.

[0040] In some possible implementations, the cut also includes a corner cut, and when the corner cut has continuous cuts in the first direction or the second direction, the number of cuts in the continuous cuts is less than or equal to 2; the corner cut is a cut arranged on a first side and a second side of the grid pattern, and the corner cut has continuous cuts in one direction, that is, the grid pattern adjacent to the first side has a continuous cut, or the grid pattern adjacent to the second side has a continuous cut.

[0041] In some possible implementations, when there are multiple corner cuts, the multiple corner cuts form an open figure.

[0042] In some possible implementations, the touch structure layer includes a touch area, a boundary area, and a connecting bridge area, the touch area includes a first touch electrode and a second touch electrode, and the connecting bridge area includes a first connecting portion and a second connecting portion; among the multiple repeating units repeatedly and continuously arranged to form the touch structure layer, the repeating units are divided into a first repeating unit including a cutout in the touch area, a second repeating unit including a cutout in the boundary area, and a third repeating unit including a cutout in the connecting bridge area;

[0043] The ratio of the cut density of the first repeating unit to the cut density of the second repeating unit is 0.7 to 1.3, the ratio of the cut density of the first repeating unit to the cut density of the third repeating unit is 0.7 to 1.3, and the ratio of the cut density of the second repeating unit to the cut density of the third repeating unit is 0.7 to 1.3; the cut density is the ratio of the number of cuts in a repeating unit to the number of grid patterns in the repeating unit.

[0044] In some possible implementations, the incision includes at least a first direction incision that cuts off the first side and a second direction incision that cuts off the second side;

[0045] The ratio of the cut density of the first repeating unit to the cut density of the second repeating unit is 0.7 to 1.3, including any one or more of the following: the ratio of the cut density of the first repeating unit in the first direction to the cut density of the second repeating unit in the first direction is 0.7 to 1.3; the ratio of the cut density of the first repeating unit in the second direction to the cut density of the second repeating unit in the second direction is 0.7 to 1.3;

[0046] The ratio of the incision density of the first repeating unit to the incision density of the third repeating unit is 0.7 to 1.3, including any one or more of the following: the ratio of the incision density in the first direction of the first repeating unit to the incision density in the first direction of the third repeating unit is 0.7 to 1.3; the ratio of the incision density in the second direction of the first repeating unit to the incision density in the second direction of the third repeating unit is 0.7 to 1.3;

[0047] The ratio of the incision density of the second repeating unit to the incision density of the third repeating unit is 0.7 to 1.3, including any one or more of the following: the ratio of the incision density in the first direction of the second repeating unit to the incision density in the first direction of the third repeating unit is 0.7 to 1.3; the ratio of the incision density in the second direction of the second repeating unit to the incision density in the second direction of the third repeating unit is 0.7 to 1.3;

[0048] The first direction cut density is the ratio of the number of first direction cuts in a repeating unit to the number of grid patterns in the repeating unit, and the second direction cut density is the ratio of the number of second direction cuts in a repeating unit to the number of grid patterns in the repeating unit.

[0049] In some possible implementations,

[0050] The connecting bridge includes a pad portion and a second connecting line, the pad portion is configured to be connected to an adjacent second touch electrode through a via hole on the insulating layer, and the second connecting line is configured to connect the pad portion;

[0051] The touch layer also includes a second connecting unit and a first connecting line, the second connecting unit and the first connecting line are arranged at intervals and insulated from each other, the position of the second connecting unit corresponds to the position of the pad portion of the bridging layer, and is configured to be connected to the pad portion through a via hole on the insulating layer, and the orthographic projection of the first connecting line on the substrate basically overlaps with the orthographic projection of the second connecting line on the substrate.

[0052] Other aspects will become apparent upon reading and understanding the drawings and detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] The accompanying drawings are used to provide a further understanding of the technical solution of the present disclosure and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the technical solution of the present disclosure and do not constitute a limitation on the technical solution of the present disclosure. The shapes and sizes of the components in the accompanying drawings do not reflect the actual proportions and are only intended to illustrate the contents of the present disclosure.

[0054] Figure 1 is a schematic diagram of a touch structure layer;

[0055] Figure 2-1 to Figure 2-5 is a schematic diagram of the structure of the metal grid;

[0056] Figure 3 A schematic diagram of a metal grid touch structure layer;

[0057] Figure 4 It is a schematic diagram of a planar structure showing a structural layer;

[0058] Figure 5-1 to Figure 5-3 is a schematic diagram of the structure of a pixel unit;

[0059] Figure 6 A schematic diagram of a cross-sectional structure showing a structural layer;

[0060] Figure 7-1 to Figure 7-3 It is a schematic structural diagram of a display panel of an exemplary embodiment of the present disclosure;

[0061] Figure 8-1 to Figure 8-4 A schematic diagram of a touch area, a border area and a connecting bridge area;

[0062] Figure 9-1 to Figure 9-2 is a schematic diagram of a watermark defect in the touch area;

[0063] Fig.10 A schematic diagram of a repeating unit of an exemplary embodiment of the present disclosure;

[0064] Fig.11 A schematic diagram of the spatial frequencies within 1 degree of the viewer's eye;

[0065] Figure 12-1 to Figure 12-3 is a schematic diagram of the shape of the repeating unit;

[0066] Figure 13-1 to Figure 13-2 is a schematic diagram of a continuous cutout of an exemplary embodiment of the present disclosure;

[0067] Figure 14-1 to Figure 14-2 is a schematic diagram of a corner cutout of an exemplary embodiment of the present disclosure;

[0068] Figure 15-1 to Figure 15-2 A schematic diagram of an open figure of an exemplary embodiment of the present disclosure;

[0069] Figure 16-1 to Figure 16-2 A schematic diagram of a directional cutout of an exemplary embodiment of the present disclosure;

[0070] Fig.17 A schematic diagram of the incision density of an exemplary embodiment of the present disclosure;

[0071] Fig.18 A schematic diagram of a repeating unit of an exemplary embodiment of the present disclosure;

[0072] Fig.19 is a schematic diagram of another repeating unit of an exemplary embodiment of the present disclosure;

[0073] Fig. 20 A schematic diagram of a regional setting for an exemplary embodiment of the present disclosure;

[0074] Figure 21 to Figure 24 Schematic diagrams of several repeating units of exemplary embodiments of the present disclosure;

[0075] Fig.25A schematic diagram of a repeating unit watermark simulation of an exemplary embodiment of the present disclosure;

[0076] Figure 26-1 to Figure 26-3 A schematic diagram of the structure of a metal grid connecting the bridge area;

[0077] Figure 27-1 to Figure 27-2 It is a schematic structural diagram of a metal grid connecting a bridge area according to an exemplary embodiment of the present disclosure.

[0078] Description of reference numerals:

[0079] 10—first touch electrode; 11—first connecting portion; 20—second touch electrode;

[0080] 21—second connecting portion; 30—cutout; 50—pixel unit;

[0081] 51—first sub-pixel; 52—second sub-pixel; 53—third sub-pixel;

[0082] 54—fourth sub-pixel; 61—flexible substrate; 62—driving circuit layer;

[0083] 63—light emitting structure layer; 64—encapsulation layer; 100—touch control area;

[0084] 101—first touch control unit; 102—first transmission line; 103—first pad electrode;

[0085] 200—boundary area; 201—second touch control unit; 202—second transmission line;

[0086] 203—second pad electrode; 300—connection bridge area; 301—connection grid;

[0087] 302—connection bridge; 303—soldering pad portion; 304—second connection line;

[0088] 305—first connection portion; 306—second connection portion; 307—area without metal wires;

[0089] 308—first connection line; 700—display structure layer; 701—sub-pixel;

[0090] 702—sub-pixel horizontal boundary; 703—sub-pixel vertical boundary; 800—touch structure layer;

[0091] 801—grid pattern; 802—horizontal metal lines; 803—vertical metal lines;

[0092] 901—first horizontal incision; 902—second horizontal incision; 903—first vertical incision;

[0093] 904 —Second vertical incision. DETAILED DESCRIPTION

[0094] In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the embodiments of the present disclosure will be described in detail in conjunction with the accompanying drawings below. Note that the embodiments can be implemented in multiple different forms. A person of ordinary skill in the art can easily understand the fact that the methods and contents can be transformed into various forms without departing from the purpose and scope of the present disclosure. Therefore, the present disclosure should not be interpreted as being limited to the contents described in the following embodiments. In the absence of conflict, the embodiments in the present disclosure and the features in the embodiments can be arbitrarily combined with each other.

[0095] In the drawings, the size of each component, the thickness of a layer, or the area is sometimes exaggerated for the sake of clarity. Therefore, one embodiment of the present disclosure is not necessarily limited to this size, and the shape and size of each component in the drawings do not reflect the true proportion. In addition, the drawings schematically show ideal examples, and one embodiment of the present disclosure is not limited to the shapes or values ​​shown in the drawings.

[0096] In the present specification, ordinal numbers such as “first”, “second” and “third” are provided to avoid confusion among constituent elements, and are not intended to limit the number.

[0097] In this specification, for the sake of convenience, the words and phrases indicating the orientation or positional relationship, such as "middle", "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., are used to illustrate the positional relationship of the constituent elements with reference to the drawings. This is only for the convenience of describing this specification and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. The positional relationship of the constituent elements is appropriately changed according to the direction in which each constituent element is described. Therefore, it is not limited to the words and phrases described in the specification, and can be appropriately replaced according to the situation.

[0098] In this specification, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate, or the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this disclosure can be understood according to specific circumstances.

[0099] In this specification, a transistor refers to an element including at least three terminals: a gate electrode, a drain electrode, and a source electrode. The transistor has a channel region between a drain electrode (drain electrode terminal, drain region, or drain electrode) and a source electrode (source electrode terminal, source region, or source electrode), and current can flow through the drain electrode, the channel region, and the source electrode. Note that in this specification, the channel region refers to a region where current mainly flows.

[0100] In this specification, the first electrode may be a drain electrode and the second electrode may be a source electrode, or the first electrode may be a source electrode and the second electrode may be a drain electrode. In the case of using transistors with opposite polarities or when the direction of current changes during circuit operation, the functions of the "source electrode" and the "drain electrode" are sometimes interchanged. Therefore, in this specification, the "source electrode" and the "drain electrode" may be interchanged.

[0101] In this specification, "electrical connection" includes the case where components are connected together through an element having some electrical function. There is no particular limitation on the "element having some electrical function" as long as it can transmit and receive electrical signals between the connected components. Examples of "element having some electrical function" include not only electrodes and wiring, but also switching elements such as transistors, resistors, inductors, capacitors, and other elements having various functions.

[0102] In this specification, "parallel" means a state where the angle formed by two straight lines is greater than -10° and less than 10°, and therefore, also includes a state where the angle is greater than -5° and less than 5°. In addition, "perpendicular" means a state where the angle formed by two straight lines is greater than 80° and less than 100°, and therefore, also includes a state where the angle is greater than 85° and less than 95°.

[0103] In this specification, "film" and "layer" may be interchanged. For example, "conductive layer" may be replaced by "conductive film". Similarly, "insulating film" may be replaced by "insulating layer".

[0104] The term "about" in the present disclosure refers to a numerical value that is not strictly limited to allow for process and measurement errors.

[0105] The display panel of the present disclosure includes a display structure layer disposed on a substrate and a touch structure layer disposed on the display structure layer. The display structure layer may be a liquid crystal display (LCD) structure layer, or may be an organic light emitting diode (OLED) structure layer, or may be a plasma display panel (PDP) structure layer, or may be an electrophoretic display (EPD) structure layer. In an exemplary embodiment, the display structure layer is an OLED structure layer, and the OLED structure layer includes a substrate, a driving circuit layer disposed on the substrate, a light emitting structure layer disposed on the driving circuit layer, and an encapsulation layer disposed on the light emitting structure layer. The touch structure layer is disposed on the encapsulation layer of the display structure layer to form a touch structure on a thin film encapsulation (Touch on Thin Film Encapsulation, referred to as Touch on TFE) structure.

[0106] Figure 1 is a schematic diagram of a touch structure layer, such as Figure 1 As shown, the touch structure layer includes multiple first touch units 101 and multiple second touch units 201, the first touch units 101 have a linear shape extending along the first extension direction D1, and the multiple first touch units 101 are arranged in sequence along the second extension direction D2, the second touch units 201 have a linear shape extending along the second extension direction D2, and the multiple second touch units 201 are arranged in sequence along the first extension direction D1, and the first extension direction D1 intersects with the second extension direction D2.

[0107] Each first touch unit 101 includes a plurality of first touch electrodes 10 and a first connection portion 11 arranged in sequence along a first extension direction D1, and the plurality of first touch electrodes 10 and the plurality of first connection portions 11 are alternately arranged and connected in sequence. Each second touch unit 201 includes a plurality of second touch electrodes 20 arranged in sequence along a second extension direction D2, and the plurality of second touch electrodes 20 are arranged at intervals, and adjacent second touch electrodes 20 are connected to each other through second connection portions 21. The layer where the second connection portion 21 is located is different from the layer where the first touch electrodes 10 and the second touch electrodes 20 are located. The first touch electrodes 10 and the second touch electrodes 20 are alternately arranged in a third extension direction D3, and the third direction D3 intersects the first extension direction D1 and the second extension direction D2.

[0108] Each first touch control unit 101 is connected to the first pad electrode 103 through the first transmission line 102, and each second touch control unit 201 is connected to the second pad electrode 203 through the second transmission line 202. In an exemplary embodiment, the first touch control electrode 10 is connected to the driver of the display panel through the first pad electrode 103, and the second touch control electrode 20 is connected to the driver through the second pad electrode 203. The driver applies a driving signal to the second touch control electrode 20 and receives an output signal from the first touch control electrode 10, or the driver can apply a driving signal to the first touch control electrode 10 and receive an output signal from the second touch control electrode 20. The driver can determine the position where the touch occurs by detecting the sensing signals generated in multiple electrodes when different electrodes transmit touch signals.

[0109] In an exemplary embodiment, a plurality of first touch electrodes 10, a plurality of second touch electrodes 20 and a plurality of first connecting portions 11 may be arranged in the same layer on the touch layer, and may be formed by the same patterning process, and the first touch electrodes 10 and the first connecting portions 11 may be an integral structure connected to each other. The second connecting portion 21 may be arranged in a bridging layer, and adjacent second touch electrodes 20 may be connected to each other through vias, and an insulating layer may be arranged between the touch layer and the bridging layer. In some possible implementations, a plurality of first touch electrodes 10, a plurality of second touch electrodes 20 and a plurality of second connecting portions 21 may be arranged in the same layer on the touch layer, and the second touch electrodes 20 and the second connecting portions 21 may be an integral structure connected to each other, and the first connecting portion 11 may be arranged in a bridging layer, and adjacent first touch electrodes 10 may be connected to each other through vias. In an exemplary embodiment, the first touch electrode may be a driving electrode (Tx), and the second touch electrode may be a sensing electrode (Rx), or the first touch electrode may be a sensing electrode (Rx), and the second touch electrode may be a driving electrode (Tx).

[0110] In an exemplary embodiment, the first touch electrode 10 and the second touch electrode 20 may have a rhombus shape, for example, a regular rhombus, a horizontally long rhombus, or a vertically long rhombus. In some possible implementations, the first touch electrode 10 and the second touch electrode 20 may have any one or more of a triangle, a square, a trapezoid, a parallelogram, a pentagon, a hexagon, and other polygons, which are not limited in the present disclosure.

[0111] In an exemplary embodiment, the first touch electrode 10 and the second touch electrode 20 may be in the form of a metal grid, the metal grid is formed by interweaving a plurality of metal wires, the metal grid includes a plurality of grid patterns, and the grid pattern is a polygon formed by a plurality of metal wires. The formed metal mesh-type first touch electrode 10 and second touch electrode 20 have the advantages of low resistance, small thickness and fast response speed. In an exemplary embodiment, the area surrounded by the metal wires in a grid pattern includes the area of ​​the sub-pixel in the display structure layer, and the position of the metal wire is located between adjacent sub-pixels. For example, when the display structure layer is an OLED display structure layer, the area of ​​the sub-pixel may be the light-emitting area defined by the pixel definition layer in the light-emitting structure layer, the area surrounded by the metal wires includes the light-emitting area, and the metal wires are located at the corresponding position of the pixel definition layer, that is, in the non-light-emitting area.

[0112] Figure 2-1 to Figure 2-5 2 is a schematic diagram of the structure of several metal grids. As shown in FIG. 2 , the metal grid includes a plurality of grid patterns, and the grid pattern is a polygon formed by metal wires. In other words, the metal grid is formed by repeatedly and continuously setting and splicing the grid patterns. In an exemplary embodiment, the shape of the grid pattern surrounded by the metal wires can be a rhombus, such as Figure 2-1 Alternatively, the shape of the grid pattern formed by the metal wires can be a triangle, such as Figure 2-2 Alternatively, the shape of the grid pattern surrounded by metal wires can be a rectangle, such as Figure 2-3 Alternatively, the shape of the grid pattern formed by the metal wires can be a hexagon, such as Figure 2-4 Alternatively, the shape of the grid pattern formed by the metal wires can be a combination of multiple shapes, such as a combination of pentagons and hexagons, such as Figure 2-5 As shown. Alternatively, the shape of the grid pattern surrounded by metal wires may include any one or more of a triangle, a square, a rectangle, a rhombus, a trapezoid, a pentagon, and a hexagon. In some possible implementations, the grid pattern surrounded by metal wires may be a regular shape or an irregular shape, and the edges of the grid pattern may be straight lines or curves, which are not limited in the present disclosure. In some possible implementations, the line width of the metal wire is ≤5μm.

[0113] Figure 3 is a schematic diagram of a metal grid touch structure layer. Figure 1 The enlarged area of ​​area A in the middle shows a diamond-shaped grid pattern. Figure 3 As shown, in order to insulate the first touch electrode 10 and the second touch electrode 20 from each other, a plurality of cutouts 30 are provided on the metal grid, and the plurality of cutouts 30 disconnect the metal wires of the grid pattern to isolate the grid pattern of the first touch electrode 10 from the grid pattern of the second touch electrode 20 . Figure 3In the figure, a black block is used to represent the cutout 30, and the cutout 30 can be understood as an imaginary line for cutting the metal wire. In an exemplary embodiment, a plurality of cutouts 30 form a metal grid into a touch (bulk) area 100, a boundary (Boundary) area 200 and a bridge (Bridge) area 300. A cutout is provided in each grid pattern located in the boundary area 200, and the cutout cuts off the metal wire of the grid pattern, so that each grid pattern is divided into two parts, one part belongs to the first touch electrode 10, and the other part belongs to the second touch electrode 20, or one part belongs to the second touch electrode 20, and the other part belongs to the first touch electrode 10. In an exemplary embodiment, the bridge area 300 includes a first connecting portion and a second connecting portion, the first connecting portion is used to realize the connection between the two first touch electrodes 10, and the second connecting portion is used to realize the connection between the two second touch electrodes 20.

[0114] In an exemplary embodiment, the touch area 100 is also provided with a plurality of cutouts (not shown), and the plurality of cutouts respectively form one or more dummy areas in the touch area, the touch area located on one side of the boundary area includes a first touch electrode and a dummy area, and the touch area located on the other side of the boundary area includes a second touch electrode and a dummy area. In an exemplary embodiment, the connection bridge area 300 is also provided with a plurality of cutouts (not shown), and the plurality of cutouts realize the isolation and connection of related grid patterns.

[0115] Figure 4 It is a schematic diagram of the planar structure of a display structure layer. On a plane parallel to the display structure layer, the display structure layer includes a plurality of pixel units arranged regularly. In an exemplary embodiment, each pixel unit may include 3 sub-pixels, or may include 4 sub-pixels, or may include multiple sub-pixels. When the pixel unit includes 3 sub-pixels, the 3 sub-pixels include a first sub-pixel emitting a first color light, a second sub-pixel emitting a second color light, and a third sub-pixel emitting a third color light. When the pixel unit includes 4 sub-pixels, the 4 sub-pixels include a first sub-pixel emitting a first color light, a second sub-pixel emitting a second color light, a third sub-pixel emitting a third color light, and a fourth sub-pixel emitting a fourth color light. As an exemplary illustration, Figure 4The pixel unit 50 shown includes 4 sub-pixels, namely, a first sub-pixel 51, a second sub-pixel 52, a third sub-pixel 53 and a fourth sub-pixel 54, and the shape of the 4 sub-pixels is square, and they are arranged in a square manner. In an exemplary embodiment, the first sub-pixel 51 and the fourth sub-pixel 54 are green sub-pixels that emit green (G) light, the second sub-pixel 52 is a red sub-pixel that emits red (R) light, and the third sub-pixel 53 is a blue sub-pixel that emits blue (B) light, forming a pixel unit 50 arranged in an RGGB square. In some possible implementations, the first sub-pixel 51 can be a green sub-pixel, the second sub-pixel 52 can be a red sub-pixel, the third sub-pixel 53 can be a blue sub-pixel, and the fourth sub-pixel 54 can be a white (W) sub-pixel, forming a pixel unit 50 arranged in an RGBW square. In some possible implementations, the pixel unit may include a red sub-pixel, a green sub-pixel, a blue sub-pixel, a cyan sub-pixel, a magenta sub-pixel, a yellow sub-pixel and a white sub-pixel.

[0116] In an exemplary embodiment, the four sub-pixels included in the pixel unit 50 may be in various shapes and arranged in various ways. Figures 5-1 to 5-3 Schematic diagrams of the structures of several pixel units. The four sub-pixels can be arranged in a rectangular shape in parallel, from left to right: R sub-pixel, G sub-pixel, B sub-pixel and G sub-pixel, as shown in FIG. Figure 5-1 Alternatively, the four sub-pixels may be pentagonal and hexagonal, respectively, and arranged in parallel, with two pentagonal G sub-pixels located in the middle of the pixel unit, and the hexagonal R sub-pixels and the hexagonal B sub-pixels located on both sides of the G sub-pixels, as shown in FIG. Figure 5-2 In an exemplary embodiment, when the pixel unit 50 includes three sub-pixels, the three rectangular sub-pixels may be arranged in parallel in the horizontal direction, or may be arranged in parallel in the vertical direction, as shown in FIG. Figure 5-3 In some possible implementations, the shape of the sub-pixel may be any one or more of a triangle, square, rectangle, rhombus, trapezoid, parallelogram, pentagon, hexagon and other polygons, and the arrangement may be an X-shape, a cross or a herringbone, etc., which is not limited in the present disclosure.

[0117] Figure 6 FIG. 1 is a schematic diagram of a cross-sectional structure of a display structure layer, illustrating the structure of two sub-pixels in an OLED display. Figure 6As shown, on a plane perpendicular to the display structure layer, the display structure layer includes a driving circuit layer 62 disposed on a flexible substrate 61, a light emitting structure layer 63 disposed on the driving circuit layer 62, and an encapsulation layer 64 disposed on the light emitting structure layer 63. When forming a display panel, the touch structure layer is disposed on the encapsulation layer 64. In some possible implementations, the display structure layer may include other film layers, and other film layers may be disposed between the touch structure layer and the encapsulation layer, which is not limited in the present disclosure.

[0118] In an exemplary embodiment, the flexible substrate 61 may include a stacked first flexible material layer, a first inorganic material layer, a semiconductor layer, a second flexible material layer, and a second inorganic material layer. The materials of the first flexible material layer and the second flexible material layer may be polyimide (PI), polyethylene terephthalate (PET), or a surface-treated polymer soft film, etc. The materials of the first inorganic material layer and the second inorganic material layer may be silicon nitride (SiNx) or silicon oxide (SiOx), etc., for improving the water and oxygen resistance of the substrate, and the material of the semiconductor layer may be amorphous silicon (a-Si).

[0119] In an exemplary embodiment, the driving circuit layer 62 may include transistors and storage capacitors constituting a pixel driving circuit. Figure 6In the example, each sub-pixel includes a transistor and a storage capacitor. In some possible implementations, the driving circuit layer 62 of each sub-pixel may include: a first insulating layer arranged on a flexible substrate, an active layer arranged on the first insulating layer, a second insulating layer covering the active layer, a gate electrode and a first capacitor electrode arranged on the second insulating layer, a third insulating layer covering the gate electrode and the first capacitor electrode, a second capacitor electrode arranged on the third insulating layer, a fourth insulating layer covering the second capacitor electrode, a via hole is provided on the fourth insulating layer, the via hole exposes the active layer, a source electrode and a drain electrode are arranged on the fourth insulating layer, the source electrode and the drain electrode are connected to the active layer through the via hole, and a flat layer covering the above structure. The active layer, the gate electrode, the source electrode and the drain electrode constitute a transistor, and the first capacitor electrode and the second capacitor electrode constitute a storage capacitor. In some possible implementations, the first insulating layer, the second insulating layer, the third insulating layer and the fourth insulating layer can be any one or more of silicon oxide (SiOx), silicon nitride (SiNx) and silicon oxynitride (SiON), and can be a single layer, a multilayer or a composite layer. The first insulating layer may be referred to as a buffer layer, which is used to improve the water and oxygen resistance of the substrate, the second insulating layer and the third insulating layer may be referred to as a gate insulating (GI) layer, and the fourth insulating layer may be referred to as an interlayer insulating (ILD) layer. The first metal film, the second metal film and the third metal film may be made of metal materials, such as any one or more of silver (Ag), copper (Cu), aluminum (Al), titanium (Ti) and molybdenum (Mo), or alloy materials of the above metals, such as aluminum neodymium alloy (AlNd) or molybdenum niobium alloy (MoNb), and may be a single-layer structure or a multi-layer composite structure, such as Ti / Al / Ti. The active layer film may be made of amorphous indium gallium zinc oxide material (a-IGZO), zinc oxynitride (ZnON), indium zinc tin oxide (IZTO), amorphous silicon (a-Si), polycrystalline silicon (p-Si), sexithiophene or polythiophene, that is, the present disclosure is applicable to transistors manufactured based on oxide technology, silicon technology or organic technology.

[0120] In an exemplary embodiment, the light-emitting structure layer 63 may include an anode, a pixel definition layer, an organic light-emitting layer and a cathode. The anode is arranged on the flat layer and is connected to the drain electrode through a via hole opened in the flat layer. The pixel definition layer is arranged on the anode and the flat layer, and a pixel opening is arranged thereon. The pixel opening exposes the anode. The organic light-emitting layer is arranged in the pixel opening. The cathode is arranged on the organic light-emitting layer. The organic light-emitting layer emits light of corresponding color under the action of the voltage applied by the anode and the cathode.

[0121] In an exemplary embodiment, the encapsulation layer 64 may include a stacked first encapsulation layer, a second encapsulation layer and a third encapsulation layer. The first encapsulation layer and the third encapsulation layer may be made of inorganic materials, the second encapsulation layer may be made of organic materials, and the second encapsulation layer is arranged between the first encapsulation layer and the third encapsulation layer to ensure that external water vapor cannot enter the light-emitting structure layer 63.

[0122] In an exemplary embodiment, the display structure layer includes a light-emitting region and a non-light-emitting region. Figure 6 As shown, since the organic light-emitting layer emits light in the pixel opening area defined by the pixel definition layer, the pixel opening area is the light-emitting area P1, and the area outside the pixel opening is the non-light-emitting area P2, and the non-light-emitting area P2 is located at the periphery of the light-emitting area P1. In the exemplary embodiments of the present disclosure, each light-emitting area P1 is referred to as a sub-pixel, such as a red sub-pixel, a blue sub-pixel or a green sub-pixel, and each non-light-emitting area P2 is referred to as a sub-pixel boundary, such as a red-green sub-pixel boundary between a red sub-pixel and a green sub-pixel, and a blue-green sub-pixel boundary between a blue sub-pixel and a green sub-pixel. In this way, the light-emitting area of ​​the display structure layer includes a plurality of periodically arranged sub-pixels, and the non-light-emitting area of ​​the display structure layer includes a sub-pixel boundary located between adjacent sub-pixels.

[0123] Figure 7-1 to Figure 7-3 FIG. 1 is a schematic diagram of the structure of a display panel of an exemplary embodiment of the present disclosure. The display panel includes a display structure layer 700 and a touch structure layer 800 stacked on a substrate. In this example, the display structure layer 700 includes a first sub-pixel, a second sub-pixel, a third sub-pixel, and a fourth sub-pixel arranged periodically. The four square sub-pixels are arranged in a square manner, such as Figure 7-1 shown. Figure 7-1 It illustrates 20 sub-pixel rows and 20 sub-pixel columns, forming 20*20 sub-pixels 701, multiple sub-pixel horizontal boundaries 702 located between adjacent sub-pixel rows, and multiple sub-pixel vertical boundaries 703 located between adjacent sub-pixel columns, the sub-pixel horizontal boundaries 702 extend along the horizontal direction, and the sub-pixel vertical boundaries 703 extend along the vertical direction. In this example, the touch structure layer 800 includes a first grid pattern, a second grid pattern, a third grid pattern, and a fourth grid pattern that are periodically arranged. The shape of the first grid pattern can be the same as the shape of the first sub-pixel, the shape of the second grid pattern can be the same as the shape of the second sub-pixel, the shape of the third grid pattern can be the same as the shape of the third sub-pixel, and the shape of the fourth grid pattern can be the same as the shape of the fourth sub-pixel. Figure 7-2 shown. Figure 7-220 grid rows and 20 grid columns are illustrated, forming a 20*20 grid pattern 801, and the 20*20 grid pattern 801 is composed of a plurality of horizontal metal lines 802 and a plurality of vertical metal lines 803 that cross each other vertically. In an exemplary embodiment, the 20*20 grid pattern may be referred to as a repeating unit. Figure 7-3 FIG. 8 is a schematic diagram showing that the touch structure layer 800 is disposed on the display structure layer 700. Figure 7-3 As described above, after the touch structure layer is disposed on the display structure layer, the 20*20 grid patterns 801 in the touch structure layer 800 correspond to the positions of the 20*20 sub-pixels 701 in the display structure layer 700, that is, the position of the first grid pattern corresponds to the position of the first sub-pixel, the position of the second grid pattern corresponds to the position of the second sub-pixel, the position of the third grid pattern corresponds to the position of the third sub-pixel, and the position of the fourth grid pattern corresponds to the position of the fourth sub-pixel. The multiple horizontal metal lines 802 in the touch structure layer 800 correspond to the positions of the multiple sub-pixel horizontal boundaries 702 in the display structure layer 700, the multiple vertical metal lines 803 in the touch structure layer 800 correspond to the positions of the multiple sub-pixel vertical boundaries 703 in the display structure layer 700, the orthographic projection of the sub-pixel horizontal boundary 702 on the substrate includes the orthographic projection of the horizontal metal line 802 on the substrate, and the orthographic projection of the sub-pixel vertical boundary 703 on the substrate includes the orthographic projection of the vertical metal line 803 on the substrate. In this way, the area enclosed by the orthographic projection of the metal wire on the substrate includes the orthographic projection of at least one sub-pixel on the substrate. In the exemplary embodiments of the present disclosure, "the orthographic projection of A includes the orthographic projection of B" means "the orthographic projection of B is within the range of the orthographic projection of A", which means that the boundary of the orthographic projection of B falls within the range of the orthographic projection of A, or the boundary of the orthographic projection of A is equal to the boundary of the orthographic projection of B. In the display panel formed in this way, the metal wires in the touch structure layer 800 are all located in the non-luminous sub-pixel boundary area in the display structure layer 700, and the metal wires do not cross the luminous area of ​​the outgoing light. When the display panel displays a dark picture or the external ambient light is strong, the metal grid will not be observed by the naked eye and will not affect the display effect. In some possible implementations, the shape of the grid pattern may be different from the shape of the sub-pixel, which is not limited in the present disclosure.

[0124] In an exemplary embodiment, a plurality of cutouts are provided on the plurality of grid patterns of the touch structure layer 800, and the plurality of cutouts disconnect the metal lines of the grid patterns, so that the touch structure layer 800 forms a touch area, a boundary area, and a connection bridge area. Figure 7-3As shown in the figure, the grid pattern corresponding to the sub-pixel 701 at the position without color filling is the touch area, and the grid pattern corresponding to the sub-pixel 701 at the position of dark filling is the boundary area, the boundary area is X-shaped, and the overlapping area in the middle of the X-shape is the connecting bridge area. The touch area includes a first touch electrode and a second touch electrode, the boundary area is arranged between adjacent first touch electrodes and second touch electrodes, and multiple cuts are arranged in multiple grid patterns in the boundary area, and the cuts cut off the metal wires of the grid pattern, so that the adjacent first touch electrodes and second touch electrodes are insulated. Among the four touch areas separated by the X-shaped boundary area, the upper touch area and the lower touch area can be the first touch electrode, and the left touch area and the right touch area are the second touch electrode, or the upper touch area and the lower touch area can be the second touch electrode, and the left touch area and the right touch area are the first touch electrode.

[0125] Figure 8-1 to Figure 8-4 Schematic diagrams of several touch areas, border areas and connecting bridge areas, illustrating the shapes of the touch areas, border areas and connecting bridge areas in a repeating unit, where the solid line represents the border area and the dotted line represents the connecting bridge area. In an exemplary embodiment, the shape of the touch area can be a triangle, and the shape of the border area can be an X shape, such as Figure 8-1 Alternatively, the shape of the touch area can be a rectangle, and the shape of the border area can be a # shape, such as Figure 8-2 Alternatively, the shape of the touch area can be a rhombus, and the shape of the border area can be a rhombus, such as Figure 8-3 Alternatively, the shape of the touch area can be a hexagon, and the shape of the border area can be a hexagon, such as Figure 8-4 In some possible implementations, the shape of the touch area may be any one or more of a triangle, a square, a rectangle, a rhombus, a trapezoid, a parallelogram, a pentagon, and a hexagon, and the shape of the border area may be any one or more of an X-shape, a #-shape, a cross, a square, a rectangle, a rhombus, a parallelogram, and a hexagon, which is not specifically limited in the present disclosure.

[0126] In an exemplary embodiment, the metal grid of the touch structure layer is spliced ​​together by a plurality of repeating units, and the repeating unit is the basic unit constituting the metal grid of the touch structure layer. The metal grid of the touch structure layer can be constituted by repeating and continuously arranging the repeating units along a certain direction. Each repeating unit includes a plurality of grid patterns, and a plurality of incisions are arranged on the plurality of grid patterns. In an exemplary embodiment, the repeating unit may include 5*5 grid patterns to 25*35 grid patterns. In some possible implementations, taking into account the design convenience and change flexibility of designers during the design process, a repeating arrangement method is adopted for the repeating unit arrangement design, and the repeating units of the repeating arrangement may include any one or more of basic repeating units, mirrored repeating units, inverted repeating units, and rotated repeating units, which are not limited in the present disclosure.

[0127] When the touch structure layer and the display structure layer are superimposed, a watermark (mura) defect will appear in the touch area of ​​the touch structure layer. The watermark defect is specifically manifested as a dot, line or block mark in the dark state, and a brightness attenuation difference at different azimuth angles in the bright state. Figure 9-1 to Figure 9-2 Schematic diagram of watermark defect in the touch area. Figure 9-1 The figure shows the setting of the cutouts in the 9*6 grid pattern in the touch area. The metal wires are cut through multiple cutouts to isolate the corresponding areas and form a virtual area in the touch area. However, this cutout setting makes the watermark defect in the touch area more obvious and can be seen by the naked eye. Figure 9-2 shown.

[0128] Fig.10 FIG. 1 is a schematic diagram of a repeating unit of an exemplary embodiment of the present disclosure, wherein the repeating unit includes a 9*6 hexagonal grid pattern. Fig.10 As described, in the horizontal direction and the vertical direction, the repeating unit has a first characteristic length S1 and a second characteristic length S2, respectively. In an exemplary embodiment, the first characteristic length S1 is greater than or equal to the second characteristic length S2, and the first characteristic length S1 is called the maximum characteristic length S of the repeating unit, that is, the maximum characteristic length S is the maximum value of the first characteristic length S1 and the second characteristic length S2. In an exemplary embodiment, the maximum characteristic length S of the repeating unit is 0.2 mm to 1.2 mm, so that the spatial frequency within 1 degree of the viewer's eyes is greater than or equal to 10.

[0129] Fig.11 This is a diagram of the spatial frequency within 1 degree of the viewer's eyes. Usually, the spatial resolution ability of the eye (i.e. visual acuity) is measured in units of the reciprocal of the resolvable visual angle (degree). The minimum resolvable visual threshold of a normal person's eyes is about 0.5, and the maximum visual range is 200 degrees (width) × 135 degrees (height). The spatial frequency within 1 degree of the viewer's eyes (Cycle / Degree, abbreviated as CPD) indicates the number of cycles of black and white stripes that the eyeball scans for every degree of rotation. Fig.11 As shown, the spatial frequency CPD within 1 degree of the viewer's eyes is related to the distance L from the viewer's eyes to the display screen and the stripe period h. The calculation formula is:

[0130] CPD=1 / (57.3*arctan(h / L))

[0131] For a given stripe period h, the greater the distance L between the viewer's eyes and the display screen, the greater the spatial frequency CPD within 1 degree of the viewer's eyes. For a given distance L between the viewer's eyes and the display screen, the smaller the stripe period h, the greater the spatial frequency CPD within 1 degree of the viewer's eyes. Studies have shown that for a touch structure layer composed of multiple repeating units, multiple repeating units will form light and dark stripes. The stripe period h of the light and dark stripes is the maximum characteristic length S of the repeating unit. Therefore, the spatial frequency CPD within 1 degree of the viewer's eyes = 1 / (57.3*arctan(S / L)), then:

[0132] S=L*tan(1 / (57.3*CPD))

[0133] In an exemplary embodiment, the distance L from the viewer's eyes to the display screen is 100 mm to 1000 mm, CPD≥10, the maximum characteristic length of the repeating unit is the maximum dimension of the repeating unit in a certain direction, and 1 / (57.3*CPD) is the radian value.

[0134] When the viewer views the touch structure layer, the distance L between the viewer's eyes and the display screen can be divided into two categories: a close viewing distance and a far viewing distance. The close viewing distance is for a small-size display screen, and the far viewing distance is for a large-size display screen. In an exemplary embodiment, in the close viewing distance, the distance L between the viewer's eyes and the display screen can be 100 mm to 400 mm, and in the far viewing distance, the distance L between the viewer's eyes and the display screen can be 400 mm to 1000 mm.

[0135] In an exemplary embodiment, for a close viewing distance, the maximum characteristic length S of the repeating unit is set to 0.2 mm to 0.4 mm. In some possible implementations, the maximum characteristic length S of the repeating unit is set to 0.25 mm to 0.35 mm.

[0136] In an exemplary embodiment, for a long viewing distance, the maximum characteristic length S of the repeating unit is set to 0.4 mm to 1.2 mm. In some possible implementations, the maximum characteristic length S of the repeating unit is set to 0.5 mm to 1.0 mm.

[0137] In some possible implementations, the maximum characteristic length S of the repeating unit is set so that the spatial frequency CPD within 1 degree of the viewer's eyes is greater than or equal to 30.

[0138] The metal grid of the touch structure layer is composed of multiple repeating units that form light and dark stripes. The exemplary embodiment of the present disclosure increases the spatial frequency within 1 degree of the viewer's eyes by setting the maximum characteristic length of the repeating units, reduces the viewer's sensitivity in distinguishing light and dark stripes, and can avoid watermarks at different azimuth angles and reduce the visibility of watermarks.

[0139] Figure 12-1 to Figure 12-3 Schematic diagrams of several repeating unit shapes. The repeating unit includes a plurality of grid patterns, and the grid pattern is a polygon composed of metal wires. In an exemplary embodiment, the repeating unit may be in the shape of a square, which is continuously arranged in the horizontal direction, and the side length of the square is the maximum characteristic length S, such as Figure 12-1 Alternatively, the repeating unit may be in the shape of a rectangle, which is continuously arranged along the horizontal direction, and the length of the long side of the rectangle is the maximum characteristic length S, as shown in FIG. Figure 12-2 Alternatively, the repeating unit may be in the shape of a hexagon, which is continuously arranged in the horizontal direction, and the maximum distance between the vertices in the horizontal direction of the hexagon is the maximum characteristic length S, as shown in FIG. Figure 12-3 In some possible implementations, the shape of the repeating unit may include any one or more of a triangle, a square, a rectangle, a rhombus, a trapezoid, a pentagon, and a hexagon, which is not limited in the present disclosure.

[0140] In an exemplary embodiment, when the cutouts are provided in the touch area, the boundary area, and the bridge area, the cutouts may include any one or more of isolated cutouts, continuous cutouts, and corner cutouts according to the relative positions between the cutouts. According to the cutout direction, the cutouts may include any one or more of first direction cutouts, second direction cutouts, and third direction cutouts. According to the positional relationship between the cutouts and the sub-pixels, the cutouts may include any one or more of the first cutouts, the second cutouts, and the third cutouts.

[0141] In an exemplary embodiment, when there are a plurality of cuts arranged continuously in one direction, the number of the cuts in the continuous cuts in one direction is less than or equal to three. Figure 13-1 to Figure 13-2Schematic diagram of continuous cuts of exemplary embodiments of the present disclosure, in which the black block represents the cut, and the cut can be understood as an imaginary line for cutting the metal wire, and the dotted line represents the direction of the cutting imaginary line. In this article, a polygonal grid pattern includes at least two mutually parallel first sides and two mutually parallel second sides, and the first side is not parallel to the second side. "Continuous cuts" means that cuts are provided on the two first sides of each grid pattern in at least one grid pattern arranged continuously in the first direction, and the first direction intersects with the first side of each grid pattern. Or, cuts are provided on the two second sides of each grid pattern in at least one grid pattern arranged continuously in the second direction, and the second direction intersects with the second side of each grid pattern. In other words, a polygonal sub-pixel includes at least two mutually parallel first sides, and the metal wires on the two mutually parallel first sides are provided with cuts, then the cuts of the metal wires on the two first sides are continuous cuts, and the sub-pixel has a continuous cut. The metal wire on the side of the sub-pixel refers to the metal wire located in the area where the sub-pixel boundary is located, the sub-pixel refers to the luminous area, and the sub-pixel boundary refers to the non-luminous area around the sub-pixel. "Isolated cutout" means that a polygonal grid pattern has a cutout on only one side, and the grid pattern has an isolated cutout. Alternatively, a sub-pixel has an isolated cutout if a metal line on only one side has a cutout. In this article, "parallel" means that the angle formed by two straight lines is greater than -10° and less than 10°, and "perpendicular" means that the angle formed by two straight lines is greater than 80° and less than 100°.

[0142] like Figure 13-1 As shown, a grid pattern can be used to illustrate continuous cuts and isolated cuts. For a grid pattern corresponding to the first grid row and the second grid column, a cut is provided on the first side (metal wire) on the left side of the grid pattern, and another cut is provided on the first side (metal wire) on the right side, and the first side on the left side is parallel to the first side on the right side, then the two cuts are continuous cuts, and the number of cuts in the continuous cuts is 2. If an adjacent grid pattern in the row direction also has a continuous cut, then the number of cuts in the continuous cuts in the row direction is 3. For a grid pattern corresponding to the third grid row and the second grid column and a grid pattern corresponding to the third grid row and the third grid column, a cut is provided on only one side of the grid pattern, then the cut is an isolated cut.

[0143] like Figure 13-1As shown, sub-pixels can be used to illustrate continuous cuts and isolated cuts. For the B sub-pixel corresponding to the first grid row and the second grid column, a cut is set on the metal line in the sub-pixel boundary area on the left side of the B sub-pixel, and another cut is set on the metal line in the sub-pixel boundary area on the right side, and the left side and the right side are parallel to each other, then the two cuts are continuous cuts, and the number of cuts in the continuous cuts is 2. If the metal lines on the left side and the right side of the G sub-pixel adjacent to the B sub-pixel in the left direction are both cut, then the number of cuts in the continuous cuts in this direction is 3. For the G sub-pixel corresponding to the second grid row and the sixth grid column, a cut is set on the metal line in the sub-pixel boundary area on the upper side of the G sub-pixel, and another cut is set on the metal line in the sub-pixel boundary area on the lower side, and the upper side and the lower side are parallel to each other, then the two cuts are continuous cuts, and the number of cuts in the continuous cuts is 2. If the metal lines on the upper side and the lower side of the B sub-pixel adjacent to the G sub-pixel in the lower direction are both provided with cuts, the number of cuts in the continuous cuts in this direction is 3. For the B sub-pixel corresponding to the third grid row and the second grid column and the G sub-pixel corresponding to the third grid row and the third grid column, the B sub-pixel has only one cut on the metal line in the sub-pixel boundary region on the right side, and the G sub-pixel has only one cut on the metal line in the sub-pixel boundary region on the left side, then the cut between the B sub-pixel and the G sub-pixel is an isolated cut.

[0144] like Figure 13-2 As shown, one continuous cut is in the horizontal direction, and the number of the continuous cuts is 3, and the other two continuous cuts are in the oblique direction, and the number of the continuous cuts is 3. The oblique direction includes the upper left direction and the upper right direction, or includes the lower right direction and the lower left direction.

[0145] In an exemplary embodiment, for the corner cut, when there are continuous cuts in the first direction or the second direction, the number of the continuous cuts is less than or equal to 2. Figure 14-1 to Figure 14-2 Schematic diagram of a corner cut of an exemplary embodiment of the present disclosure. In this article, "corner cut" means that a first side and a second side of a polygonal grid pattern are both provided with cuts, then the two cuts are corner cuts, and the grid pattern has a corner cut, which is equivalent to the cut direction of the two sides of the grid pattern being turned. In other words, a polygonal sub-pixel includes at least a first side and a second side that are not parallel, and the metal lines on the two first and second sides that are not parallel are both provided with cuts, then the two cuts are corner cuts, which is equivalent to the cut direction of the two sides of the sub-pixel being turned.

[0146] like Figure 14-1As shown, a grid pattern can be used to illustrate a corner cut. For a grid pattern corresponding to the first grid row and the third grid column, a cut is provided on the first side in the left direction of the grid pattern, and another cut is provided on the second side in the lower direction, and the first side is not parallel to the second side, then the two cuts are corner cuts, and the directions of the corner cuts are respectively the left direction and the lower direction. The grid pattern corresponding to the first grid row and the second grid column is a grid pattern adjacent to the first side, and the grid pattern has continuous cuts, then the corner cut includes continuous cuts in the left direction, and the number of cuts in the continuous cuts is 2. The grid pattern corresponding to the second grid row and the third grid column is a grid pattern adjacent to the first side, and the grid pattern has continuous cuts, then the corner cut includes continuous cuts in the lower direction, and the number of cuts in the continuous cuts is 2.

[0147] like Figure 14-1 As shown, sub-pixels can be used to illustrate corner cuts. For the G sub-pixel corresponding to the first grid row and the third grid column, a cut extending to the left direction is provided on the metal line in the sub-pixel boundary region on the left side of the G sub-pixel, and another cut extending to the lower side is provided on the metal line in the sub-pixel boundary region on the lower side. Then, the cut extending to the left direction and the cut extending to the lower side form a corner cut, and the directions of the corner cut are respectively the left direction and the lower direction. When the B sub-pixel adjacent to the G sub-pixel in the left direction has a continuous cut, the corner cut includes a continuous cut in the left direction, and the number of the cuts in the continuous cuts is 2. When the R sub-pixel adjacent to the G sub-pixel in the lower direction has a continuous cut, the corner cut includes a continuous cut in the lower direction, and the number of the cuts in the continuous cuts is 2.

[0148] like Figure 14-2 As shown, one corner cut is in the left direction and the lower right direction, both directions include continuous cuts, and the number of cuts in the continuous cut is 2. The other corner cut is in the right direction and the lower left direction, the lower left direction includes continuous cuts, and the number of cuts in the continuous cut is 2.

[0149] In an exemplary embodiment, when a plurality of corner cutouts are continuously disposed, the plurality of corners constitute an open figure. Figure 15-1 to Figure 15-2 Schematic diagram of an open diagram of an exemplary embodiment of the present disclosure. Figure 15-1As shown, a corner cut is formed at the G sub-pixel corresponding to the first grid row and the third grid column, and one end of the corner cut is the G sub-pixel corresponding to the first grid row and the first grid column. Another corner cut is formed at the G sub-pixel corresponding to the third grid row and the third grid column, and one end of the corner cut is the G sub-pixel corresponding to the third grid row and the first grid column. Since the ends of the two corner cuts do not overlap, the figure formed by the two corner cuts is an open figure, and all the cuts in the two corner cuts do not form a closed loop. Figure 15-2 As shown, a corner cut is formed at the G sub-pixel corresponding to the first grid row and the third grid column, and one end of the corner cut is the G sub-pixel corresponding to the first grid row and the first grid column. Another corner cut is formed at the B sub-pixel corresponding to the third grid row and the fourth grid column, and one end of the corner cut is the B sub-pixel corresponding to the third grid row and the sixth grid column. Since the ends of the two corner cuts do not overlap, the figure formed by the two corner cuts is an open figure.

[0150] The exemplary embodiment of the present disclosure can set the relative position relationship between the incisions so that the incisions on the metal grid are set as evenly as possible, avoid brightness differences caused by interference between multiple incisions in one direction or one area, reduce the visibility of the incisions, and improve watermark defects in the touch area.

[0151] In an exemplary embodiment, when the cutouts are provided in the touch area, the border area, and the bridge area, the cutouts may include at least a first direction cutout and a second direction cutout according to the direction of the cutouts. Since the grid pattern is a polygon formed by metal lines, the grid pattern includes at least a first side and a second side that are not parallel to each other, the first direction cutout is a cutout that cuts off the first side, and the second direction cutout is a cutout that cuts off the second side. Figure 16-1 to Figure 16-2 Schematic diagram of the cutout direction of the exemplary embodiment of the present disclosure. Figure 16-1 As shown, in the rectangular grid pattern, the cut that cuts off the vertical metal line (first side) is the first direction cut (horizontal cut), and the cut that cuts off the horizontal metal line (second side) is the second direction cut (vertical cut). Figure 16-2 As shown, in the hexagonal grid pattern, the cut that cuts off the metal line in the upper right direction (first side) is the first direction cut (upper left cut), and the cut that cuts off the metal line in the upper left direction (second side) is the second direction cut (upper right cut). In an exemplary embodiment, the first direction cut can be any one of a horizontal cut, a vertical cut, and an oblique cut, and the second direction cut can be any one different from the first direction cut, and the oblique cut includes any one or more of an upper left cut and an upper right cut. In the following embodiments, the first direction cut is a horizontal cut, the second direction cut is a vertical cut, and the third direction cut is an oblique cut as an example for explanation.

[0152] In an exemplary embodiment, the cutout density refers to a ratio of the number of cutouts within one repeating unit to the number of grid patterns within one repeating unit. Fig.17 Schematic diagram of the incision density of the exemplary embodiment of the present disclosure. Fig.17 As shown, in a repeating unit, such as a 12*12 rectangular grid pattern, the number of grid patterns is 144, and when 58 cuts are set in the repeating unit, the cut density is 58 / 144=0.403. Among the 58 cuts, the number of horizontal cuts is 31, and the number of vertical cuts is 27, so the horizontal cut density is 31 / 144=0.215, and the vertical cut density is 27 / 144=0.188. In an exemplary embodiment, the cut density in a repeating unit can be 10% to 90%.

[0153] Fig.18 The figure is a schematic diagram of a repeating unit of an exemplary embodiment of the present disclosure, wherein the repeating unit includes a 12*12 grid pattern, and the grid pattern is a rectangle. The 12*12 grid pattern of the repeating unit has the same shape as the 12*12 sub-pixels on the display structure layer, and the positions correspond to each other. The 12*12 sub-pixels are periodically arranged in a GBRG square manner. Fig.18 As shown, the cuts of the repeating unit include a first horizontal cut 901, a second horizontal cut 902, a first vertical cut 903 and a second vertical cut 904. The first horizontal cut 901 is arranged between the R sub-pixel and the G sub-pixel arranged in the horizontal direction, the second horizontal cut 902 is arranged between the B sub-pixel and the G sub-pixel arranged in the horizontal direction, the first vertical cut 903 is arranged between the R sub-pixel and the G sub-pixel arranged in the vertical direction, and the second vertical cut 904 is arranged between the B sub-pixel and the G sub-pixel arranged in the vertical direction.

[0154] In an exemplary embodiment, within a repeating unit, a ratio of the first horizontal cut density to the second horizontal cut density may be 0.7 to 1.3, and a ratio of the first vertical cut density to the second vertical cut density may be 0.7 to 1.3. In some possible implementations, the first horizontal cut density may be equal to the second horizontal cut density, and the first vertical cut density may be equal to the second vertical cut density. The first horizontal cut density is the ratio of the number of first horizontal cuts 901 in the repeating unit to the number of grid patterns in the repeating unit, the second horizontal cut density is the ratio of the number of second horizontal cuts 902 in the repeating unit to the number of grid patterns in the repeating unit, the first vertical cut density is the ratio of the number of first vertical cuts 903 in the repeating unit to the number of grid patterns in the repeating unit, and the second vertical cut density is the ratio of the number of second vertical cuts 904 in the repeating unit to the number of grid patterns in the repeating unit.

[0155] For example, for Fig.18In the repeating unit of the 12*12 grid pattern shown, in the first, third, fifth, seventh, ninth, and eleventh grid rows, the number of second horizontal cuts 902 is 2, 4, 2, 2, 3, and 3 respectively, and the number of second horizontal cuts 902 in the repeating unit is 16. In the second, fourth, sixth, eighth, tenth, and twelfth grid rows, the number of first horizontal cuts 901 is 3, 2, 4, 3, 2, and 3 respectively, and the number of first horizontal cuts 901 in the repeating unit is 17, and the ratio of the first horizontal cut density to the second horizontal cut density is 1.06. For another example, for Fig.18 In the repeating unit of the 12*12 grid pattern shown, in the first, third, fifth, seventh, ninth, and eleventh grid columns, the numbers of the first vertical cuts 903 are 3, 2, 2, 2, 3, and 2, respectively, and the number of the first vertical cuts 903 in the repeating unit is 14. In the second, fourth, sixth, eighth, tenth, and twelfth grid columns, the numbers of the second vertical cuts 904 are 2, 3, 2, 3, 3, and 3, respectively, and the number of the second vertical cuts 904 in the repeating unit is 16, and the ratio of the first vertical cut density to the second vertical cut density is 1.14.

[0156] Since the first horizontal cutout is set between the R sub-pixel and the G sub-pixel, it can be understood that one first horizontal cutout corresponds to one R sub-pixel and one G sub-pixel, so when the number of first horizontal cutouts is 16, 16 first horizontal cutouts will correspond to R sub-pixels and G sub-pixels. Since the second horizontal cutout is set between the B sub-pixel and the G sub-pixel, it can be understood that one second horizontal cutout corresponds to one B sub-pixel and one G sub-pixel, so when the number of second horizontal cutouts is 17, 17 second horizontal cutouts will correspond to B sub-pixels and G sub-pixels. In this way, among all the horizontal cutouts, the number of corresponding R sub-pixels is 16, the number of corresponding B sub-pixels is 17, and the number of corresponding G sub-pixels is 33. The number of corresponding R sub-pixels and the number of corresponding B sub-pixels are similar, and the number of corresponding G sub-pixels is the same as the number of corresponding R sub-pixels and B sub-pixels.

[0157] Since the first horizontal cutout is set between the R sub-pixel and the G sub-pixel, it can be understood that one R sub-pixel has an adjacent first horizontal cutout, and one G sub-pixel has an adjacent first horizontal cutout, so when the number of first horizontal cutouts is 16, 16 R sub-pixels have adjacent first horizontal cutouts, and 16 G sub-pixels have adjacent first horizontal cutouts. Since the second horizontal cutout is set between the B sub-pixel and the G sub-pixel, it can be understood that one B sub-pixel has an adjacent second horizontal cutout, and one G sub-pixel has an adjacent second horizontal cutout, so when the number of second horizontal cutouts is 17, 17 B sub-pixels have adjacent second horizontal cutouts, and 17 G sub-pixels have adjacent second horizontal cutouts. In this way, among all the sub-pixels, the number of R sub-pixels adjacent to horizontal cuts is 16, the number of B sub-pixels adjacent to horizontal cuts is 17, and the number of G sub-pixels adjacent to horizontal cuts is 33. The number of R sub-pixels adjacent to horizontal cuts and the number of B sub-pixels adjacent to horizontal cuts are similar, and the number of G sub-pixels adjacent to horizontal cuts is the same as the number of R sub-pixels and B sub-pixels adjacent to horizontal cuts.

[0158] The cutouts in the repeating unit may be divided into a first cutout and a second cutout, the first cutout being disposed between the R sub-pixel and the G sub-pixel, that is, the first cutout includes a first horizontal cutout and a first vertical cutout, and the second cutout being disposed between the B sub-pixel and the G sub-pixel, that is, the second cutout includes a second horizontal cutout and a second vertical cutout. In an exemplary embodiment, in the repeating unit, a ratio of the first cutout density to the second cutout density may be 0.7 to 1.3.

[0159] In an exemplary embodiment, when the sub-pixels are periodically arranged in other ways, the cuts in the repeating unit can be divided into a first cut, a second cut and a third cut, the first cut is set between the R sub-pixel and the G sub-pixel, the second cut is set between the B sub-pixel and the G sub-pixel, and the third cut is set between the R sub-pixel and the B sub-pixel. In a repeating unit, the ratio of the first cut density to the second cut density can be 0.7 to 1.3, the ratio of the second cut density to the third cut density can be 0.7 to 1.3, and the ratio of the first cut density to the third cut density can be 0.7 to 1.3. In some possible implementations, the first cut, the second cut and the third cut can each include any one or more of a horizontal (first direction) cut, a vertical (second direction) cut and an inclined (third direction) cut, and the inclined cut can include any one or more of an upper left cut and an upper right cut, which is not limited in the present disclosure.

[0160] In some possible implementations, the ratio of the first cut density to the second cut density can be 0.7 to 1.3, including any one or more of the following: the ratio of the first horizontal cut density to the second horizontal cut density can be 0.7 to 1.3, the ratio of the first vertical cut density to the second vertical cut density can be 0.7 to 1.3, and the ratio of the first inclined cut density to the second inclined cut density can be 0.7 to 1.3.

[0161] In some possible implementations, the ratio of the second cut density to the third cut density can be 0.7 to 1.3, including any one or more of the following: the ratio of the second horizontal cut density to the third horizontal cut density can be 0.7 to 1.3, the ratio of the second vertical cut density to the third vertical cut density can be 0.7 to 1.3, and the ratio of the second inclined cut density to the third inclined cut density can be 0.7 to 1.3.

[0162] In some possible implementations, the ratio of the first incision density to the third incision density can be 0.7 to 1.3, including any one or more of the following: the ratio of the first horizontal incision density to the third horizontal incision density can be 0.7 to 1.3, the ratio of the first vertical incision density to the third vertical incision density can be 0.7 to 1.3, and the ratio of the first inclined incision density to the third inclined incision density can be 0.7 to 1.3.

[0163] Fig.19 FIG. 2 is a schematic diagram of another repeating unit of an exemplary embodiment of the present disclosure, wherein the repeating unit includes 9*6 grid patterns, and the grid pattern is a hexagon. Fig.19 As shown, in this repeating unit, the number of the first horizontal cuts is 4, the number of the second horizontal cuts is 4, and the number of the third horizontal cuts is 4. Then the ratio of the first horizontal cut density to the second horizontal cut density is 1, the ratio of the second horizontal cut density to the third horizontal cut density is 1, and the ratio of the first horizontal cut density to the third horizontal cut density is 1. Fig.19 As shown, in this repeating unit, the number of the first upper left cuts is 4, the number of the second upper left cuts is 4, and the number of the third upper left cuts is 4. Then the ratio of the first upper left cut density to the second upper left cut density is 1, the ratio of the second upper left cut density to the third upper left cut density is 1, and the ratio of the first upper left cut density to the third upper left cut density is 1. Fig.19 As shown, in this repeating unit, the number of first upper right cuts is 4, the number of second upper right cuts is 4, and the number of third upper right cuts is 4. Then the ratio of the first upper right cut density to the second upper right cut density is 1, the ratio of the second upper right cut density to the third upper right cut density is 1, and the ratio of the first upper right cut density to the third upper right cut density is 1.

[0164] The exemplary embodiment of the present disclosure sets the first cut density, the second cut density and the third cut density to be equal or similar within a repeating unit, so that the number of sub-pixels of different colors corresponding to the cuts is basically the same, the number of adjacent sub-pixels of different colors with cuts is basically the same, and the cuts are evenly distributed among sub-pixels of different colors, thereby reducing the visibility of the cuts and improving the watermark defects in the boundary area.

[0165] In an exemplary embodiment, the touch area, the border area and the bridge area are all provided with a plurality of cutouts, the plurality of cutouts in the touch area form a virtual area and an electrode area in the touch area respectively, the plurality of cutouts in the border area realize the isolation of the first touch electrode from the second touch electrode, and the plurality of cutouts in the bridge area form a connection structure. Since there are bordering areas between the touch area, the border area and the bridge area, the watermark defect in the bridge area can be improved by setting the cutout density in the bordering area.

[0166] like Figure 3 As shown, the repeating units constituting the metal grid of the touch structure layer can be divided into a first repeating unit C1 including a cutout in the touch area, a second repeating unit C2 including a cutout in the boundary area, and a third repeating unit C3 including a cutout in the connecting bridge area. In an exemplary embodiment, the first repeating unit C1, the second repeating unit C2, and the third repeating unit C3 have the same area. In an exemplary embodiment, the ratio of the cutout density of the first repeating unit to the cutout density of the second repeating unit can be 0.7 to 1.3, the ratio of the cutout density of the first repeating unit to the cutout density of the third repeating unit can be 0.7 to 1.3, and the ratio of the cutout density of the second repeating unit to the cutout density of the third repeating unit can be 0.7 to 1.3.

[0167] In an exemplary embodiment, according to the cut direction, the cuts in the first repeating unit, the second repeating unit, and the third repeating unit may each include any one or more of a first direction cut, a second direction cut, and a third direction cut.

[0168] In some possible implementations, the ratio of the cut density of the first repeating unit to the cut density of the second repeating unit can be 0.7 to 1.3, including any one or more of the following: the ratio of the cut density in the first direction in the first repeating unit to the cut density in the first direction in the second repeating unit can be 0.7 to 1.3, the ratio of the cut density in the second direction in the first repeating unit to the cut density in the second direction in the second repeating unit can be 0.7 to 1.3, and the ratio of the cut density in the third direction in the first repeating unit to the cut density in the third direction in the second repeating unit can be 0.7 to 1.3.

[0169] In some possible implementations, the ratio of the cut density of the first repeating unit to the cut density of the third repeating unit can be 0.7 to 1.3, including any one or more of the following: the ratio of the first direction cut density in the first repeating unit to the first direction cut density in the third repeating unit can be 0.7 to 1.3, the ratio of the second direction cut density in the first repeating unit to the second direction cut density in the third repeating unit can be 0.7 to 1.3, and the ratio of the third direction cut density in the first repeating unit to the third direction cut density in the third repeating unit can be 0.7 to 1.3.

[0170] In some possible implementations, the ratio of the cut density of the second repeating unit to the cut density of the third repeating unit can be 0.7 to 1.3, including any one or more of the following: the ratio of the cut density in the first direction in the second repeating unit to the cut density in the first direction in the third repeating unit can be 0.7 to 1.3, the ratio of the cut density in the second direction in the second repeating unit to the cut density in the second direction in the third repeating unit can be 0.7 to 1.3, and the ratio of the cut density in the third direction in the second repeating unit to the cut density in the third direction in the third repeating unit can be 0.7 to 1.3.

[0171] In an exemplary embodiment, a first area may be defined in the area where the touch area is located, and the area of ​​the first area is equal to the area of ​​the first repeating unit. A plurality of second areas may be defined in the area where the boundary area is located, and the area of ​​each second area is equal to the area of ​​the second repeating unit. A plurality of third areas may be defined in the area where the connecting bridge area is located, and the area of ​​each third area is equal to the area of ​​the third repeating unit. In an exemplary embodiment of the present disclosure, the ratio of the cut density of the first repeating unit to the cut density of the second repeating unit may be 0.7 to 1.3, which may be extended to: the ratio of the cut density of a first area to the cut density of any second area may be 0.7 to 1.3. The ratio of the cut density of the first repeating unit to the cut density of the third repeating unit may be 0.7 to 1.3, which may be extended to: the ratio of the cut density of a first area to the cut density of any third area may be 0.7 to 1.3. The ratio of the incision density of the second repeating unit to the incision density of the third repeating unit may be 0.7 to 1.3, which may be extended to: the ratio of the incision density of a second region to the incision density of any third region may be 0.7 to 1.3.

[0172] Fig. 20 FIG. 1 is a schematic diagram of the regional setting of an exemplary embodiment of the present disclosure. Fig. 20As shown, relative to the first area defined in the area where the connecting bridge area is located, the area where the touch area is located can define multiple second areas, such as second areas A1 to A5 located in the right direction of the first area, second areas B1 to B5 located in the lower right direction of the first area, and second areas C1 to C5 located in the lower direction of the first area. Taking the second area in the right direction as an example, the second areas A1 to A5 can be defined by intervals or by overlaps. The ratio of the cut density of the first area to the cut density of any second area refers to the ratio of the cut density of the first area to the cut density of the second area A1, or the ratio of the cut density of the first area to the cut density of the second area A2, or the ratio of the cut density of the first area to the cut density of the second area A3, or the ratio of the cut density of the first area to the cut density of the second area A4, or the ratio of the cut density of the first area to the cut density of the second area A5.

[0173] The exemplary embodiment of the present disclosure reduces the difference in incision patterns among the touch area, the boundary area, and the connecting bridge area by setting the incision density relationship among the touch area, the boundary area, and the connecting bridge area, reduces the brightness difference among the touch area, the boundary area, and the connecting bridge area, reduces the visibility of the incision, and can improve the watermark defect in the touch area.

[0174] In an exemplary embodiment, according to the positional relationship between the cutouts and the sub-pixels, the multiple cutouts in the first repeating unit, the second repeating unit, and the third repeating unit may each include a first cutout, a second cutout, and a third cutout, the first cutout being arranged between the R sub-pixel and the G sub-pixel, the second cutout being arranged between the B sub-pixel and the G sub-pixel, and the third cutout being arranged between the R sub-pixel and the B sub-pixel.

[0175] In some possible implementations, the ratio of the cut density of the first repeating unit to the cut density of the second repeating unit can be 0.7 to 1.3, including any one or more of the following: the ratio of the first cut density in the first repeating unit to the first cut density in the second repeating unit can be 0.7 to 1.3, the ratio of the second cut density in the first repeating unit to the second cut density in the second repeating unit can be 0.7 to 1.3, and the ratio of the third cut density in the first repeating unit to the third cut density in the second repeating unit can be 0.7 to 1.3.

[0176] In some possible implementations, the ratio of the cut density of the first repeating unit to the cut density of the third repeating unit can be 0.7 to 1.3, including any one or more of the following: the ratio of the first cut density in the first repeating unit to the first cut density in the third repeating unit can be 0.7 to 1.3, the ratio of the second cut density in the first repeating unit to the second cut density in the third repeating unit can be 0.7 to 1.3, and the ratio of the third cut density in the first repeating unit to the third cut density in the third repeating unit can be 0.7 to 1.3.

[0177] In some possible implementations, the ratio of the cut density of the second repeating unit to the cut density of the third repeating unit can be 0.7 to 1.3, including any one or more of the following: the ratio of the first cut density in the second repeating unit to the first cut density in the third repeating unit can be 0.7 to 1.3, the ratio of the second cut density in the second repeating unit to the second cut density in the third repeating unit can be 0.7 to 1.3, and the ratio of the third cut density in the second repeating unit to the third cut density in the third repeating unit can be 0.7 to 1.3.

[0178] The exemplary embodiment of the present disclosure can make the number of sub-pixels of different colors corresponding to the cuts in the touch area, boundary area and connecting bridge area basically the same, and the cuts are evenly distributed among sub-pixels of different colors, which can reduce the visibility of the cuts and improve the watermark defects in the touch area.

[0179] Figure 21 to Figure 24 Schematic diagrams of several repeating units of exemplary embodiments of the present disclosure, Fig.25 It is a schematic diagram of a repeating unit watermark simulation according to an exemplary embodiment of the present disclosure. Fig.21 The repeating unit shown includes 10*10 grid patterns, and the grid patterns are square. Fig. 22 The repeating unit shown includes 12*12 grid patterns, and the grid patterns are square. Fig.23 The repeating unit shown includes the 9*6 grid patterns, and the grid pattern is hexagonal. Fig.24 The repeating unit shown includes the 18*12 grid patterns, and the grid pattern is a hexagon. Figure 21 to Figure 24As shown, the cutout settings of the above-mentioned repeating units all satisfy the cutout density relationship of the touch area, the boundary area and the connecting bridge area, eliminate the difference in metal patterns of the touch area, the boundary area and the connecting bridge area, satisfy the ratio of the first cutout density to the second cutout density, the first cutout density to the third cutout density and the second cutout density to the second cutout density of 0.7 to 1.3, satisfy the number of cutouts in the continuous cuts in one direction is less than or equal to 3, when there are continuous cuts in the corner cuts in the first direction or the second direction, the number of cuts in the continuous cuts is less than or equal to 2, and multiple corners constitute an open pattern, so that the cuts are maximally evenly arranged in the connecting bridge area, the touch area and the boundary area, reducing the visibility of the cuts, and can significantly improve the watermark defects in the connecting bridge area, and the watermark is almost not observable by the naked eye, such as Fig.25 shown.

[0180] Figure 26-1 to Figure 26-3 A schematic diagram of the structure of a metal grid connecting the bridge area. Figure 3 In the enlarged area of ​​the middle B area, the grid pattern is a diamond shape. In the direction perpendicular to the touch structure layer, the touch structure layer includes a bridging layer, an insulating layer and a touch layer arranged in sequence along the direction away from the display structure layer, and the insulating layer is arranged between the touch layer and the bridging layer to achieve insulation between the two. In an exemplary embodiment, the bridging layer includes a lower metal grid, and the touch layer includes an upper metal grid. The metal grid in the connecting bridge area includes a lower metal grid located in the bridging layer and an upper metal grid located in the touch layer. The lower metal grid serves as a connecting bridge and is configured to interconnect the second touch electrodes 20 located in the touch layer, and the upper metal grid is configured to interconnect the first touch electrodes 10 located in the same layer.

[0181] Figure 26-1 Schematic diagram of the structure of a lower metal grid, the lower metal grid is arranged in a bridging layer, and serves as a connecting bridge to establish a connection between the second touch electrodes 20, and the second touch electrodes 20 are arranged at intervals in the vertical direction. Figure 26-1As shown, the lower metal grid includes two connection grids 301 symmetrically arranged relative to the vertical line, each connection grid 301 includes a plurality of connection bridges 302, and each connection bridge 302 includes a pad portion 303 and a second connection line 304. The pad portion 303 is arranged at both ends of the connection bridge 302, and is configured to be connected to the second touch electrode 20 located in the touch layer through a via hole opened on the insulating layer, and the second connection line 304 is arranged between the pad portions 30 at both ends, and is configured to connect the pad portions 303 at both ends. The second connection line 304 includes a second connection line connected to the pad portion 303 on the first side of the connection bridge 302 and another second connection line connected to the pad portion 303 on the second side of the connection bridge 302, one second connection line extends from the pad portion 303 on the first side to the pad portion 303 on the second side, and the other second connection line extends from the pad portion 303 on the second side to the pad portion 303 on the first side, and the two second connection lines are connected to each other at the intersection. In an exemplary embodiment, each connection grid 301 includes 2 to 5 connection bridges 302 arranged in sequence, and the connection bridges 302 of the same shape are arranged in sequence from small to large. In an exemplary embodiment, each connection bridge may include multiple grid structures, and the multiple grid structures are connected to each other. In an exemplary embodiment, the pad portion 303 located at the end of the connection bridge 302 includes 2 to 4 first pads, and the multiple first pads are arranged in a linear shape, a triangular shape or a square shape. In an exemplary embodiment, the second connection line 304 in the shape of a broken line is respectively connected to the first pads in the pad portion 303 at both ends.

[0182] Figure 26-2 Schematic diagram of the structure of an upper metal grid, the upper metal grid is arranged on the touch layer. Figure 26-2 As shown, the upper metal grid includes a first touch electrode 10, a second touch electrode 20, a first connection unit 305 and a second connection unit 306. The first touch electrodes 10 are arranged at intervals in the horizontal direction, and the first connection unit 305 as a first connection portion connects two adjacent first touch electrodes 10. The second touch electrodes 20 are arranged at intervals in the vertical direction, and the second connection unit 306 and the lower metal grid together serve as a second connection portion to connect two adjacent second touch electrodes 20. The first connection unit 305 includes a plurality of interlaced lines, such as Figure 26-2 As shown by the thick lines, a plurality of interlaced lines cross each other and extend toward the two first touch electrodes 10 respectively, so that the two adjacent first touch electrodes 10 and the first connection unit 305 form an integrated structure connected to each other. The actual line width of the interlaced lines is the same as the line width of the metal lines in the grid pattern. Figure 26-2The bold lines are used only to clearly describe the interlaced lines. The second connection unit 306 includes a plurality of second pads, the positions of which correspond to the positions of the plurality of first pads of the lower metal grid, and are configured to be connected to the lower metal grid located at the bridge layer through vias opened on the insulating layer. The plurality of second pads are respectively located on both sides of the first connection unit 305, and the second pads on each side are connected to the second touch electrode 20 on that side.

[0183] In a design of a metal grid in a connecting bridge area, the positions of the plurality of second pads of the upper metal grid correspond to the positions of the plurality of first pads of the lower metal grid, and a second connecting wire 304 is arranged between the plurality of first pads of the lower metal grid, and the metal wires at the positions corresponding to the second connecting wires 304 in the upper metal grid are removed to form a metal wire-free area 307, such as Figure 26-2 shown.

[0184] Figure 26-3 The schematic diagram of the structure of the metal grid in the bridge area is shown in FIG. The solid line represents the metal wire of the upper metal grid, and the dotted line represents the metal wire of the lower metal grid. After the upper metal grid and the lower metal grid form the bridge area, the upper metal grid has no metal wire at the position where the lower metal grid has metal wire, and the lower metal grid has no metal wire at the position where the upper metal grid has metal wire. Figure 26-3 Studies have shown that because the upper metal grid in the bridge area is incomplete and the bridge area has reflections from both the metal wires of the upper metal grid and the metal wires of the lower metal grid, the grid pattern in the bridge area is quite different from that in the touch area and the boundary area, resulting in point-shaped, line-shaped or block-shaped watermark defects in the bridge area.

[0185] Figure 27-1 to Figure 27-2 The schematic diagram of the structure of the metal grid connecting the bridge area of ​​the exemplary embodiment of the present disclosure is as follows: Figure 3 In the enlarged area of ​​the middle B region, the grid pattern is a diamond shape. The metal grid in the connection bridge area includes a lower metal grid located in the bridge layer and an upper metal grid located in the touch layer. The lower metal grid serves as a connection bridge and is configured to connect the second touch electrodes 20 located in the touch layer to each other. The upper metal grid is configured to connect the first touch electrodes 10 located in the same layer to each other.

[0186] Figure 27-1 The schematic diagram of the structure of the upper metal grid of the exemplary embodiment of the present disclosure is shown in FIG. 1 , where the upper metal grid is arranged on the touch layer. In the exemplary embodiment, the lower metal grid of the present disclosure may be formed by Figure 26-1 As shown in the structure. Figure 27-1As shown, the upper metal grid includes the first touch electrodes 10, the second touch electrodes 20, the first connection unit 305, the second connection unit 306 and the first connection line 308. The first touch electrodes 10 are arranged at intervals in the horizontal direction. The first connection unit 305 as the first connection part connects two adjacent first touch electrodes 10. The second touch electrodes 20 are arranged at intervals in the vertical direction. The second connection unit 306 as the second connection part connects two adjacent second touch electrodes 20 together with the lower metal grid. The second connection unit 306 and the first connection line 308 are arranged at intervals and insulated from each other. The structure of the first connection unit 305 is similar to that of the lower metal grid. Figure 26-1 The structure of the first connection unit 305 shown is the same, so that the two adjacent first touch electrodes 10 and the first connection unit 305 form an integrated structure connected to each other. The second connection unit 306 includes a plurality of second pads, and the positions of the plurality of second pads correspond to the positions of the plurality of first pads of the lower metal grid, that is, the position of the second connection unit 306 corresponds to the position of the pad portion of the lower metal grid, and the second connection unit 306 is configured to be connected to the plurality of first pads located in the bridge layer through the vias opened on the insulating layer. The positions of the plurality of first connection lines 308 correspond to the positions of the plurality of second connection lines 304 of the lower metal grid, and the first connection line 308 is configured to shield the second connection line of the lower metal grid, and a plurality of cuts are provided on the first connection line 308, and the plurality of cuts cut off the first connection line 308, thereby ensuring that the second pads of the upper metal grid are isolated from the first touch electrode 10 and the first connection unit 305 respectively. Figure 27-1 The medium-thick line indicates the first connection line. The actual line width of the first connection line is the same as the line width of the metal line in the grid pattern. Figure 27-1 The bold line is used only to clearly describe the first connection line.

[0187] Figure 27-2 FIG. 1 is a schematic diagram of the structure of the metal grid connecting the bridge area according to an exemplary embodiment of the present disclosure. Figure 27-2As shown, after the upper metal grid and the lower metal grid form a connecting bridge area, the lower metal grid has a position of a metal line, the upper metal grid is provided with a first connecting line, and the orthographic projection of the first connecting line of the upper metal grid on the substrate substantially overlaps with the orthographic projection of the second connecting line of the lower metal grid on the substrate. In the exemplary embodiment of the present disclosure, "the orthographic projection of A on the substrate substantially overlaps with the orthographic projection of B on the substrate", which means that the overlapping range of the orthographic projection of A and the orthographic projection of B is greater than 90%. In an exemplary embodiment, a plurality of cuts are provided on the first connecting line, and the overlapping range of the orthographic projection of the first connecting line of the upper metal grid on the substrate and the orthographic projection of the second connecting line of the lower metal grid on the substrate is greater than 95%. In this way, the integrity of the upper metal grid in the connecting bridge area is ensured, the reflection of the metal line of the lower metal grid in the connecting bridge area is blocked by the first connecting line provided by the upper metal grid, and the reflection of the metal line in the connecting bridge area mainly comes from the metal line of the upper metal grid, so that the grid pattern of the connecting bridge area is very different from the grid pattern of the touch area and the boundary area, effectively avoiding the occurrence of point-shaped, line-shaped or block-shaped watermark defects in the connecting bridge area.

[0188] The present disclosure also provides a touch structure, comprising a stacked bridge layer, an insulating layer and a touch layer, wherein the touch layer comprises a plurality of first touch electrodes and a plurality of first connecting portions sequentially arranged along a first extension direction, and a plurality of second touch electrodes sequentially arranged along a second extension direction, wherein the first extension direction intersects with the second extension direction; the plurality of first touch electrodes and the plurality of first connecting portions are alternately arranged and sequentially connected, and the plurality of second touch electrodes are spaced apart; the bridge layer comprises a connecting bridge, and the connecting bridge is connected to adjacent second touch electrodes;

[0189] The touch structure layer includes a plurality of repeating units that are repeatedly and continuously arranged, and the repeating unit includes a plurality of grid patterns, and the grid pattern is a polygon composed of metal wires. A plurality of incisions are arranged in the plurality of grid patterns, and the incisions cut off the metal wires of the grid patterns; the maximum characteristic length S of the repeating unit is L*tan(1 / (57.3*CPD)); wherein L is the distance from the viewer's eyes to the display screen, CPD is the spatial frequency within 1 degree of the viewer's eyes, L is 100 mm to 1000 mm, CPD is greater than or equal to 10, and the maximum characteristic length of the repeating unit is the maximum size of the repeating unit in a certain direction, and 1 / (57.3*CPD) is the radian value.

[0190] In some possible implementations, when the distance from the viewer's eye to the display screen is 100 mm to 400 mm, the maximum characteristic length of the repeating unit is 0.2 mm to 0.4 mm; when the distance from the viewer's eye to the display screen is 400 mm to 1000 mm, the maximum characteristic length of the repeating unit is 0.4 mm to 1.2 mm.

[0191] In some possible implementations, the grid pattern includes at least two mutually parallel first sides and two mutually parallel second sides, and the first sides are not parallel to the second sides;

[0192] The incisions include continuous incisions, the number of which is less than or equal to 3, and the continuous incisions are formed by incisions on both first sides of each grid pattern in at least one grid pattern continuously arranged in a first direction, and the first direction intersects with the first side of each grid pattern, or the continuous incisions are formed by incisions on both second sides of each grid pattern in at least one grid pattern continuously arranged in a second direction, and the second direction intersects with the second side of each grid pattern.

[0193] In some possible implementations, the cut also includes a corner cut, and when the corner cut has continuous cuts in the first direction or the second direction, the number of cuts in the continuous cuts is less than or equal to 2; the corner cut is a cut set on a first side and a second side of the grid pattern.

[0194] In some possible implementations, when there are multiple corner cuts, the multiple corner cuts form an open figure.

[0195] In some possible implementations, the touch structure layer includes a touch area, a boundary area, and a connecting bridge area, the touch area includes a first touch electrode and a second touch electrode, and the connecting bridge area includes a first connecting portion and a second connecting portion; among the multiple repeating units repeatedly and continuously arranged to form the touch structure layer, the repeating units are divided into a first repeating unit including a cutout in the touch area, a second repeating unit including a cutout in the boundary area, and a third repeating unit including a cutout in the connecting bridge area;

[0196] The ratio of the cut density of the first repeating unit to the cut density of the second repeating unit is 0.7 to 1.3, the ratio of the cut density of the first repeating unit to the cut density of the third repeating unit is 0.7 to 1.3, and the ratio of the cut density of the second repeating unit to the cut density of the third repeating unit is 0.7 to 1.3; the cut density is the ratio of the number of cuts in a repeating unit to the number of grid patterns in the repeating unit.

[0197] In some possible implementations, the incision includes at least a first direction incision that cuts off the first side and a second direction incision that cuts off the second side;

[0198] The ratio of the cut density of the first repeating unit to the cut density of the second repeating unit is 0.7 to 1.3, including any one or more of the following: the ratio of the cut density of the first repeating unit in the first direction to the cut density of the second repeating unit in the first direction is 0.7 to 1.3; the ratio of the cut density of the first repeating unit in the second direction to the cut density of the second repeating unit in the second direction is 0.7 to 1.3;

[0199] The ratio of the incision density of the first repeating unit to the incision density of the third repeating unit is 0.7 to 1.3, including any one or more of the following: the ratio of the incision density in the first direction of the first repeating unit to the incision density in the first direction of the third repeating unit is 0.7 to 1.3; the ratio of the incision density in the second direction of the first repeating unit to the incision density in the second direction of the third repeating unit is 0.7 to 1.3;

[0200] The ratio of the incision density of the second repeating unit to the incision density of the third repeating unit is 0.7 to 1.3, including any one or more of the following: the ratio of the incision density in the first direction of the second repeating unit to the incision density in the first direction of the third repeating unit is 0.7 to 1.3; the ratio of the incision density in the second direction of the second repeating unit to the incision density in the second direction of the third repeating unit is 0.7 to 1.3;

[0201] The first direction cut density is the ratio of the number of first direction cuts in a repeating unit to the number of grid patterns in the repeating unit, and the second direction cut density is the ratio of the number of second direction cuts in a repeating unit to the number of grid patterns in the repeating unit.

[0202] In some possible implementations, the plurality of sub-pixels include a first sub-pixel emitting a first color, a second sub-pixel emitting a second color, and a third sub-pixel emitting a third color; in the first repeating unit, the second repeating unit, and the third repeating unit, the cutouts include a first cutout between the first sub-pixel and the second sub-pixel, a second cutout between the second sub-pixel and the third sub-pixel, and a third cutout between the first sub-pixel and the third sub-pixel;

[0203] In the first repeating unit, the second repeating unit and the third repeating unit, the ratio of the first incision density to the second incision density is 0.7 to 1.3, the ratio of the first incision density to the third incision density is 0.7 to 1.3, and the ratio of the second incision density to the third incision density is 0.7 to 1.3;

[0204] The first incision density is the ratio of the number of first incisions in a repeating unit to the number of grid patterns in the repeating unit, the second incision density is the ratio of the number of second incisions in a repeating unit to the number of grid patterns in the repeating unit, and the third incision density is the ratio of the number of third incisions in a repeating unit to the number of grid patterns in the repeating unit.

[0205] In some possible implementations,

[0206] The ratio of the first cut density to the second cut density is 0.7 to 1.3, including any one or more of the following: the ratio of the first horizontal cut density to the second horizontal cut density is 0.7 to 1.3, the ratio of the first vertical cut density to the second vertical cut density is 0.7 to 1.3, and the ratio of the first oblique cut density to the second oblique cut density is 0.7 to 1.3;

[0207] The ratio of the second incision density to the third incision density is 0.7 to 1.3, including any one or more of the following: the ratio of the second horizontal incision density to the third horizontal incision density is 0.7 to 1.3, the ratio of the second vertical incision density to the third vertical incision density is 0.7 to 1.3, and the ratio of the second oblique incision density to the third oblique incision density is 0.7 to 1.3;

[0208] The ratio of the first incision density to the third incision density is 0.7 to 1.3, including any one or more of the following: the ratio of the first horizontal incision density to the third horizontal incision density is 0.7 to 1.3, the ratio of the first vertical incision density to the third vertical incision density is 0.7 to 1.3, and the ratio of the first inclined incision density to the third inclined incision density is 0.7 to 1.3.

[0209] In some possible implementations,

[0210] The ratio of the first incision density of the first repeating unit to the first incision density of the second repeating unit is 0.7 to 1.3; the ratio of the second incision density of the first repeating unit to the second incision density of the second repeating unit is 0.7 to 1.3; the ratio of the third incision density of the first repeating unit to the third incision density of the second repeating unit is 0.7 to 1.3;

[0211] The ratio of the first incision density of the first repeating unit to the first incision density of the third repeating unit is 0.7 to 1.3; the ratio of the second incision density of the first repeating unit to the second incision density of the third repeating unit is 0.7 to 1.3; the ratio of the third incision density of the first repeating unit to the third incision density of the third repeating unit is 0.7 to 1.3;

[0212] The ratio of the first incision density of the second repeating unit to the first incision density of the third repeating unit is 0.7 to 1.3; the ratio of the second incision density of the second repeating unit to the second incision density of the third repeating unit is 0.7 to 1.3; the ratio of the third incision density of the second repeating unit to the third incision density of the third repeating unit is 0.7 to 1.3.

[0213] In some possible implementations,

[0214] The connecting bridge includes a pad portion and a second connecting line, the pad portion is configured to be connected to an adjacent second touch electrode through a via hole on the insulating layer, and the second connecting line is configured to connect the pad portion;

[0215] The touch layer also includes a second connecting unit and a first connecting line, the second connecting unit and the first connecting line are arranged at intervals and insulated from each other, the position of the second connecting unit corresponds to the position of the pad portion of the bridging layer, and is configured to be connected to the pad portion through a via hole on the insulating layer, and the orthographic projection of the first connecting line on the substrate basically overlaps with the orthographic projection of the second connecting line on the substrate.

[0216] The present disclosure also provides a display device, including the display panel of any of the above embodiments. The display device can be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, a navigator, etc.

[0217] The drawings in this application only relate to the structures involved in this disclosure, and other structures can refer to the general design. In the absence of conflict, the embodiments of this disclosure, that is, the features in the embodiments, can be combined with each other to obtain new embodiments.

[0218] Those skilled in the art should understand that the technical solutions of the present disclosure may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present disclosure, and all should be included in the scope of the claims of this application.

Claims

1. A display panel, comprising a substrate, a display structure layer disposed on the substrate, and a touch structure layer disposed on the display structure layer; the display structure layer comprises a light-emitting area and a non-light-emitting area, the light-emitting area comprises a plurality of periodically arranged sub-pixels, and the non-light-emitting area comprises a sub-pixel boundary between adjacent sub-pixels; the touch structure layer comprises a plurality of grid patterns, the grid patterns are polygons formed by metal lines, the area enclosed by the orthographic projections of the metal lines on the substrate includes the orthographic projection of at least one sub-pixel on the substrate, and the orthographic projection of the sub-pixel boundary on the substrate includes the orthographic projection of the metal lines on the substrate; The touch structure layer includes a stacked bridge layer, an insulating layer and a touch layer, the touch layer includes a plurality of first touch electrodes and a plurality of first connecting portions sequentially arranged along a first extension direction, and a plurality of second touch electrodes sequentially arranged along a second extension direction, the first extension direction intersects the second extension direction; the plurality of first touch electrodes and the plurality of first connecting portions are alternately arranged and sequentially connected, and the plurality of second touch electrodes are spaced apart; the bridge layer includes a connecting bridge, and the connecting bridge is connected to adjacent second touch electrodes; The touch structure layer includes a touch area, the touch area includes a plurality of repeating units repeatedly and continuously arranged, a plurality of cutouts are arranged in the plurality of grid patterns of the repeating units, and the cutouts cut off the metal wires of the grid patterns; the maximum characteristic length of the repeating unit S=L*tan(1 / (57.3*CPD)); wherein, L is the distance from the viewer's eyes to the display screen, CPD is the spatial frequency within 1 degree of the viewer's eyes, L is 100mm to 1000mm, CPD is greater than or equal to 10, and the maximum characteristic length of the repeating unit is the maximum dimension of the repeating unit in a certain direction.

2. The display panel according to claim 1, wherein: When the distance between the viewer's eye and the display screen is 100mm to 400mm, the maximum characteristic length of the repeating unit is 0.2mm to 0.4mm; when the distance between the viewer's eye and the display screen is 400mm to 1000mm, the maximum characteristic length of the repeating unit is 0.4mm to 1.2mm.

3. The display panel according to claim 1 or 2, wherein: The grid pattern comprises at least two mutually parallel first sides and two mutually parallel second sides, wherein the first sides are not parallel to the second sides; The incisions include continuous incisions, the number of which is less than or equal to 3, and the continuous incisions are formed by incisions on both first sides of each grid pattern in at least one grid pattern continuously arranged in a first direction, and the first direction intersects with the first side of each grid pattern, or the continuous incisions are formed by incisions on both second sides of each grid pattern in at least one grid pattern continuously arranged in a second direction, and the second direction intersects with the second side of each grid pattern.

4. The display panel according to claim 3, wherein: The incisions also include corner incisions. When the corner incisions are continuous incisions in the first direction or the second direction, the number of incisions in the continuous incisions is less than or equal to 2. The corner incisions are incisions arranged on a first side and a second side of the grid pattern.

5. The display panel according to claim 4, wherein: When there are multiple corner cuts, the multiple corner cuts form an open figure.

6. The display panel according to claim 3, wherein: The touch structure layer comprises a touch area, a boundary area and a connecting bridge area, the touch area comprises a first touch electrode and a second touch electrode, and the connecting bridge area comprises a first connecting portion and a second connecting portion; in a plurality of repeating units repeatedly and continuously arranged to form the touch structure layer, the repeating units are divided into a first repeating unit including a cutout in the touch area, a second repeating unit including a cutout in the boundary area, and a third repeating unit including a cutout in the connecting bridge area; The ratio of the cut density of the first repeating unit to the cut density of the second repeating unit is 0.7 to 1.3, the ratio of the cut density of the first repeating unit to the cut density of the third repeating unit is 0.7 to 1.3, and the ratio of the cut density of the second repeating unit to the cut density of the third repeating unit is 0.7 to 1.3; the cut density is the ratio of the number of cuts in a repeating unit to the number of grid patterns in the repeating unit.

7. The display panel according to claim 6, wherein: The incision at least includes a first direction incision that cuts off the first side and a second direction incision that cuts off the second side; The ratio of the cut density of the first repeating unit to the cut density of the second repeating unit is 0.7 to 1.3, including any one or more of the following: the ratio of the cut density of the first repeating unit in the first direction to the cut density of the second repeating unit in the first direction is 0.7 to 1.3; the ratio of the cut density of the first repeating unit in the second direction to the cut density of the second repeating unit in the second direction is 0.7 to 1.3; The ratio of the incision density of the first repeating unit to the incision density of the third repeating unit is 0.7 to 1.3, including any one or more of the following: the ratio of the incision density in the first direction of the first repeating unit to the incision density in the first direction of the third repeating unit is 0.7 to 1.3; the ratio of the incision density in the second direction of the first repeating unit to the incision density in the second direction of the third repeating unit is 0.7 to 1.3; The ratio of the incision density of the second repeating unit to the incision density of the third repeating unit is 0.7 to 1.3, including any one or more of the following: the ratio of the incision density in the first direction of the second repeating unit to the incision density in the first direction of the third repeating unit is 0.7 to 1.3; the ratio of the incision density in the second direction of the second repeating unit to the incision density in the second direction of the third repeating unit is 0.7 to 1.3; The first direction cut density is the ratio of the number of first direction cuts in a repeating unit to the number of grid patterns in the repeating unit, and the second direction cut density is the ratio of the number of second direction cuts in a repeating unit to the number of grid patterns in the repeating unit.

8. The display panel according to claim 6, wherein: The plurality of sub-pixels include a first sub-pixel emitting a first color, a second sub-pixel emitting a second color, and a third sub-pixel emitting a third color; in the first repeating unit, the second repeating unit, and the third repeating unit, the cutouts include a first cutout between the first sub-pixel and the second sub-pixel, a second cutout between the second sub-pixel and the third sub-pixel, and a third cutout between the first sub-pixel and the third sub-pixel; In the first repeating unit, the second repeating unit and the third repeating unit, the ratio of the first incision density to the second incision density is 0.7 to 1.3, the ratio of the second incision density to the third incision density is 0.7 to 1.3, and the ratio of the first incision density to the third incision density is 0.7 to 1.3; The first incision density is the ratio of the number of first incisions in a repeating unit to the number of grid patterns in the repeating unit, the second incision density is the ratio of the number of second incisions in a repeating unit to the number of grid patterns in the repeating unit, and the third incision density is the ratio of the number of third incisions in a repeating unit to the number of grid patterns in the repeating unit.

9. The display panel according to claim 8, wherein: The ratio of the first cut density to the second cut density is 0.7 to 1.3, including any one or more of the following: the ratio of the first horizontal cut density to the second horizontal cut density is 0.7 to 1.3, the ratio of the first vertical cut density to the second vertical cut density is 0.7 to 1.3, and the ratio of the first oblique cut density to the second oblique cut density is 0.7 to 1.3; The ratio of the second incision density to the third incision density is 0.7 to 1.3, including any one or more of the following: the ratio of the second horizontal incision density to the third horizontal incision density is 0.7 to 1.3, the ratio of the second vertical incision density to the third vertical incision density is 0.7 to 1.3, and the ratio of the second oblique incision density to the third oblique incision density is 0.7 to 1.3; The ratio of the first incision density to the third incision density is 0.7 to 1.3, including any one or more of the following: the ratio of the first horizontal incision density to the third horizontal incision density is 0.7 to 1.3, the ratio of the first vertical incision density to the third vertical incision density is 0.7 to 1.3, and the ratio of the first inclined incision density to the third inclined incision density is 0.7 to 1.

3.

10. The display panel according to claim 8, wherein: The ratio of the first incision density of the first repeating unit to the first incision density of the second repeating unit is 0.7 to 1.3; the ratio of the second incision density of the first repeating unit to the second incision density of the second repeating unit is 0.7 to 1.3; the ratio of the third incision density of the first repeating unit to the third incision density of the second repeating unit is 0.7 to 1.3; The ratio of the first incision density of the first repeating unit to the first incision density of the third repeating unit is 0.7 to 1.3; the ratio of the second incision density of the first repeating unit to the second incision density of the third repeating unit is 0.7 to 1.3; the ratio of the third incision density of the first repeating unit to the third incision density of the third repeating unit is 0.7 to 1.3; The ratio of the first incision density of the second repeating unit to the first incision density of the third repeating unit is 0.7 to 1.3; the ratio of the second incision density of the second repeating unit to the second incision density of the third repeating unit is 0.7 to 1.3; the ratio of the third incision density of the second repeating unit to the third incision density of the third repeating unit is 0.7 to 1.

3.

11. The display panel according to claim 1 or 2, wherein: The connecting bridge includes a pad portion and a second connecting line, the pad portion is configured to be connected to an adjacent second touch electrode through a via hole on the insulating layer, and the second connecting line is configured to connect the pad portion; The touch layer also includes a second connecting unit and a first connecting line, the second connecting unit and the first connecting line are arranged at intervals and insulated from each other, the position of the second connecting unit corresponds to the position of the pad portion of the bridging layer, and is configured to be connected to the pad portion through a via hole on the insulating layer, and the orthographic projection of the first connecting line on the substrate basically overlaps with the orthographic projection of the second connecting line on the substrate.

12. A display device comprising the display panel according to any one of claims 1 to 11.

13. A touch structure, comprising a bridge layer, an insulating layer and a touch layer stacked on a substrate, the touch layer comprising a plurality of first touch electrodes and a plurality of first connecting portions sequentially arranged along a first extension direction, and a plurality of second touch electrodes sequentially arranged along a second extension direction, the first extension direction intersecting the second extension direction; the plurality of first touch electrodes and the plurality of first connecting portions are alternately arranged and sequentially connected, and the plurality of second touch electrodes are spaced apart; the bridge layer comprises a connecting bridge, and the connecting bridge is connected to adjacent second touch electrodes; The touch structure includes a plurality of repeating units that are repeatedly and continuously arranged, the repeating units include a plurality of grid patterns, the grid patterns are polygons composed of metal wires, a plurality of cuts are arranged in the plurality of grid patterns, the cuts cut off the metal wires of the grid patterns; the maximum characteristic length of the repeating unit S = L*tan(1 / (57.3*CPD)); wherein, L is the distance from the viewer's eyes to the display screen, CPD is the spatial frequency within 1 degree of the viewer's eyes, L is 100mm to 1000mm, CPD is greater than or equal to 10, and the maximum characteristic length of the repeating unit is the maximum dimension of the repeating unit in a certain direction.

14. The touch control structure according to claim 13, wherein: When the distance between the viewer's eye and the display screen is 100mm to 400mm, the maximum characteristic length of the repeating unit is 0.2mm to 0.4mm; when the distance between the viewer's eye and the display screen is 400mm to 1000mm, the maximum characteristic length of the repeating unit is 0.4mm to 1.2mm.

15. The touch control structure according to claim 13 or 14, wherein: The grid pattern comprises at least two mutually parallel first sides and two mutually parallel second sides, wherein the first sides are not parallel to the second sides; The incisions include continuous incisions, the number of which is less than or equal to 3, and the continuous incisions are formed by incisions on both first sides of each grid pattern in at least one grid pattern continuously arranged in a first direction, and the first direction intersects with the first side of each grid pattern, or the continuous incisions are formed by incisions on both second sides of each grid pattern in at least one grid pattern continuously arranged in a second direction, and the second direction intersects with the second side of each grid pattern.

16. The touch control structure according to claim 15, wherein: The incisions also include corner incisions. When the corner incisions are continuous incisions in the first direction or the second direction, the number of incisions in the continuous incisions is less than or equal to 2. The corner incisions are incisions arranged on a first side and a second side of the grid pattern.

17. The touch control structure according to claim 16, wherein: When there are multiple corner cuts, the multiple corner cuts form an open figure.

18. The touch control structure according to claim 15, wherein: The touch structure layer comprises a touch area, a boundary area and a connecting bridge area, the touch area comprises a first touch electrode and a second touch electrode, and the connecting bridge area comprises a first connecting portion and a second connecting portion; in a plurality of repeating units repeatedly and continuously arranged to form the touch structure layer, the repeating units are divided into a first repeating unit including a cutout in the touch area, a second repeating unit including a cutout in the boundary area, and a third repeating unit including a cutout in the connecting bridge area; The ratio of the cut density of the first repeating unit to the cut density of the second repeating unit is 0.7 to 1.3, the ratio of the cut density of the first repeating unit to the cut density of the third repeating unit is 0.7 to 1.3, and the ratio of the cut density of the second repeating unit to the cut density of the third repeating unit is 0.7 to 1.3; the cut density is the ratio of the number of cuts in a repeating unit to the number of grid patterns in the repeating unit.

19. The touch control structure according to claim 18, wherein: The incision at least includes a first direction incision that cuts off the first side and a second direction incision that cuts off the second side; The ratio of the cut density of the first repeating unit to the cut density of the second repeating unit is 0.7 to 1.3, including any one or more of the following: the ratio of the cut density of the first repeating unit in the first direction to the cut density of the second repeating unit in the first direction is 0.7 to 1.3; the ratio of the cut density of the first repeating unit in the second direction to the cut density of the second repeating unit in the second direction is 0.7 to 1.3; The ratio of the incision density of the first repeating unit to the incision density of the third repeating unit is 0.7 to 1.3, including any one or more of the following: the ratio of the incision density in the first direction of the first repeating unit to the incision density in the first direction of the third repeating unit is 0.7 to 1.3; the ratio of the incision density in the second direction of the first repeating unit to the incision density in the second direction of the third repeating unit is 0.7 to 1.3; The ratio of the incision density of the second repeating unit to the incision density of the third repeating unit is 0.7 to 1.3, including any one or more of the following: the ratio of the incision density in the first direction of the second repeating unit to the incision density in the first direction of the third repeating unit is 0.7 to 1.3; the ratio of the incision density in the second direction of the second repeating unit to the incision density in the second direction of the third repeating unit is 0.7 to 1.3; The first direction cut density is the ratio of the number of first direction cuts in a repeating unit to the number of grid patterns in the repeating unit, and the second direction cut density is the ratio of the number of second direction cuts in a repeating unit to the number of grid patterns in the repeating unit.

20. The touch control structure according to claim 13 or 14, wherein: The connecting bridge includes a pad portion and a second connecting line, the pad portion is configured to be connected to an adjacent second touch electrode through a via hole on the insulating layer, and the second connecting line is configured to connect the pad portion; The touch layer also includes a second connecting unit and a first connecting line, the second connecting unit and the first connecting line are arranged at intervals and insulated from each other, the position of the second connecting unit corresponds to the position of the pad portion of the bridging layer, and is configured to be connected to the pad portion through a via hole on the insulating layer, and the orthographic projection of the first connecting line on the substrate basically overlaps with the orthographic projection of the second connecting line on the substrate.

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