Display panel and display device

Abstract

The display panel comprises a substrate, a display structure layer and a touch control structure layer, wherein the display structure layer and the touch control structure layer are sequentially arranged on the substrate. The substrate comprises a display area and a first frame area located on one side of the display area. The display structure layer at least comprises a first organic film layer and a first inorganic film layer, and the first organic film layer is located on the side, away from the substrate, of the first inorganic film layer. The touch structure layer at least comprises a second organic film layer and a second inorganic film layer, and the second organic film layer is located on the side, away from the display structure layer, of the second inorganic film layer. In the first frame area, one part of the second organic film layer is in contact with the first organic film layer, or one part of the second inorganic film layer is in contact with the first inorganic film layer.

Description

Technical Field

[0001] This document relates to, but is not limited to, the field of display technologies, and particularly refers to a display panel and a display device. Background Art

[0002] An organic light-emitting diode (OLED) is an active light-emitting display device, which has the advantages of self-luminescence, wide viewing angle, high contrast ratio, low power consumption, extremely high response speed, etc. With the continuous development of display technologies, a display device using an OLED as a light-emitting device and controlled by a thin-film transistor (TFT) has become the mainstream product in the current display field. Summary of the Invention

[0003] The following is an overview of the subject matter described in detail in this document. This overview is not intended to limit the scope of protection of the claims.

[0004] This embodiment provides a display panel and a display device.

[0005] On the one hand, this embodiment provides a display panel, including: a substrate, a display structure layer, and a touch control structure layer. The substrate includes a display area and a first border area located on one side of the display area. The display structure layer is located on the substrate and at least includes a first organic film layer and a first inorganic film layer, and the first organic film layer is located on the side of the first inorganic film layer away from the substrate. The touch control structure layer is located on the side of the display structure layer away from the substrate and at least includes a second organic film layer and a second inorganic film layer, and the second organic film layer is located on the side of the second inorganic film layer away from the display structure layer. In the first border area, a part of the second organic film layer is in contact with the first organic film layer, or a part of the second inorganic film layer is in contact with the first inorganic film layer.

[0006] In some exemplary embodiments, the first border area includes: a first signal access area and a routing setting area located on the side of the first signal access area close to the display area. The routing setting area at least includes a plurality of touch control transmission lines, the first signal access area at least includes a plurality of touch control contact pads, and at least one touch control transmission line among the plurality of touch control transmission lines is connected to at least one touch control contact pad. The second inorganic film layer includes, in the routing setting area: a plurality of first hollow structures, and the second organic film layer is in contact with the first organic film layer through the plurality of first hollow structures. At least one of the plurality of first hollow structures is located on at least one side of at least one of the plurality of touch control transmission lines.

[0007] In some exemplary embodiments, the plurality of first hollow structures include at least one of the following: a plurality of inorganic pores, a plurality of inorganic grooves.

[0008] In some exemplary embodiments, in the wiring arrangement region, the first organic film layer includes: a plurality of recesses, the plurality of recesses communicating with the plurality of first hollow structures in a one-to-one correspondence, a positive projection of the recess on the substrate covering a positive projection of the corresponding first hollow structure on the substrate, and a positive projection of the second inorganic film layer on the substrate overlapping a part of the positive projection of the recess on the substrate.

[0009] In some exemplary embodiments, the wiring arrangement region further includes: at least one first power supply line, the first power supply line being located on a side of the plurality of touch transmission lines close to the substrate, and a positive projection of the first power supply line on the substrate overlapping a part of the positive projection of the plurality of touch transmission lines on the substrate. At least one of the plurality of inorganic grooves extends along an edge of the first power supply line.

[0010] In some exemplary embodiments, the display panel further includes: a cutting edge located on one side of the first power supply line, and at least one of the plurality of inorganic grooves extends along the cutting edge.

[0011] In some exemplary embodiments, the wiring arrangement region includes: a first edge region, a first wiring region, a middle region, a second wiring region, and a second edge region arranged in sequence along a first direction; the plurality of touch transmission lines are located in the first wiring region and the second wiring region; the wiring arrangement region is located on one side of the display region along a second direction, and the first direction intersects with the second direction. The plurality of first hollow structures are located in at least one of the first edge region, the middle region, and the second edge region.

[0012] In some exemplary embodiments, the first border region includes: a first signal access region and a wiring arrangement region located on a side of the first signal access region close to the display region. The wiring arrangement region at least includes a plurality of touch transmission lines, the first signal access region at least includes a plurality of touch contact pads, and at least one of the plurality of touch transmission lines is connected to at least one touch contact pad. In the wiring arrangement region, the first organic film layer includes: a plurality of second hollow structures, and the second inorganic film layer contacts the first inorganic film layer through the plurality of second hollow structures. The plurality of second hollow structures are located on at least one side of the plurality of touch transmission lines.

[0013] In some exemplary embodiments, the plurality of second hollow structures include at least one of the following: a plurality of organic pores, a plurality of organic grooves.

[0014] In some exemplary embodiments, the display panel further includes: a plurality of isolation pillars located in the trace setting area, and a positive projection of the second hollow structure on the substrate covers a positive projection of at least one isolation pillar on the substrate; the isolation pillars are located between the second inorganic film layer and the first inorganic film layer.

[0015] In some exemplary embodiments, the display structure layer at least includes: a first source-drain metal layer and a second source-drain metal layer sequentially disposed on the substrate, and the isolation pillars are located in the second source-drain metal layer.

[0016] In some exemplary embodiments, the isolation pillar includes: a first metal layer, a second metal layer, and a third metal layer sequentially disposed along a direction away from the substrate, a positive projection of the third metal layer on the substrate covers positive projections of the second metal layer and the first metal layer on the substrate, and an edge of the third metal layer protrudes from edges of the second metal layer and the first metal layer.

[0017] In some exemplary embodiments, the trace setting area further includes: at least one first power supply line located on a side of the plurality of touch transmission lines close to the substrate, a positive projection of the first power supply line on the substrate partially overlaps with positive projections of the plurality of touch transmission lines on the substrate; at least one of the plurality of isolation pillars extends along an edge of the first power supply line.

[0018] In some exemplary embodiments, the first border area further includes: a bending area, the trace setting area is communicated with the bending area and is located on a side of the bending area away from the display area.

[0019] In some exemplary embodiments, the display structure layer at least includes: a first source-drain metal layer, a passivation layer, a first planarization layer, a second source-drain metal layer, and a second planarization layer disposed on the substrate. The first inorganic film layer at least includes: the passivation layer; the first organic film layer at least includes: the second planarization layer and the first planarization layer.

[0020] In some exemplary embodiments, the touch structure layer at least includes: a touch buffer layer, a first touch conductive layer, a touch interlayer insulating layer, a second touch conductive layer, and a touch protection layer sequentially disposed. The second inorganic film layer includes: the touch buffer layer and the touch interlayer insulating layer; the second organic film layer includes: the touch protection layer.

[0021] On the other hand, the present embodiment provides a display device including the display panel as described above.

[0022] On the other hand, this embodiment provides a display panel, including: a substrate. The substrate includes a display area and a first border area located on one side of the display area. The first border area at least includes: a first inorganic film layer, a first organic film layer, a second inorganic film layer, a second organic film layer, and multiple touch transmission lines disposed on the substrate; the first organic film layer is located on the side of the first inorganic film layer away from the substrate, the second inorganic film layer is located on the side of the first organic film layer away from the substrate, and the second organic film layer is located on the side of the second inorganic film layer away from the substrate. The second inorganic film layer includes multiple first hollow structures, and the second organic film layer is in contact with the first organic film layer through the multiple first hollow structures, and the distance between the first hollow structures and the orthographic projection of the touch transmission lines on the substrate is greater than 0; or, the first organic film layer includes multiple second hollow structures, and the second inorganic film layer is in contact with the first inorganic film layer through the multiple second hollow structures, and the distance between the second hollow structures and the orthographic projection of the touch transmission lines on the substrate is greater than 0.

[0023] In some exemplary embodiments, the multiple first hollow structures include at least one of the following: multiple inorganic holes, multiple inorganic grooves.

[0024] In some exemplary embodiments, the multiple second hollow structures include at least one of the following: multiple organic holes, multiple organic grooves.

[0025] Other aspects can be understood after reading and understanding the drawings and the detailed description. Description of the Drawings

[0026] The drawings are used to provide an understanding of the technical solutions of the present application, and constitute a part of the specification. They are used together with the embodiments of the present application to explain the technical solutions of the present application, and do not constitute a limitation to the technical solutions of the present application.

[0027] Figure 1 Schematic diagram of the display panel of at least one embodiment of the present disclosure;

[0028] Figure 2 Partial cross-sectional schematic diagram of the display area of the display panel of at least one embodiment of the present disclosure;

[0029] Figure 3 Partial plan schematic diagram of the touch structure layer of at least one embodiment of the present disclosure;

[0030] Figure 4 Partial schematic diagram of the first border area of at least one embodiment of the present disclosure;

[0031] Figure 5 is Figure 4 Partial enlarged schematic diagram of area C1 in

[0032] Figure 6 is Figure 5 a partial cross-sectional schematic view along the Q1-Q1' direction in

[0033] Figure 7 is Figure 5 a partial cross-sectional schematic view along the Q2-Q2' direction in

[0034] Figure 8 is another partial schematic view of the first border area of at least one embodiment of the present disclosure;

[0035] Figure 9 is Figure 8 a partially enlarged schematic view of area C2 in

[0036] Figure 10A is Figure 9 a partial cross-sectional schematic view along the Q3-Q3' direction in

[0037] Figure 10B is Figure 9 another partial cross-sectional schematic view along the Q3-Q3' direction in

[0038] Figure 11 is another partial schematic view of the first border area of at least one embodiment of the present disclosure;

[0039] Figure 12 is Figure 11 a partially enlarged schematic view of area C3 in

[0040] Figure 13A is Figure 12 a partial cross-sectional schematic view along the Q4-Q4' direction in

[0041] Figure 13B is Figure 12 another partial cross-sectional schematic view along the Q4-Q4' direction in

[0042] Figure 14 is another partial schematic view of the first border area of at least one embodiment of the present disclosure;

[0043] Figure 15 is Figure 14 a partially enlarged schematic view of area C4 in

[0044] Figure 16 is Figure 15 a partial cross-sectional schematic view along the Q5-Q5' direction in

[0045] Figure 17 is another partial schematic view of the first border area of at least one embodiment of the present disclosure;

[0046] Figure 18Another partial schematic diagram of the first border region of at least one embodiment of the present disclosure;

[0047] Figure 19 is Figure 18 A partial enlarged schematic diagram of region C5 in

[0048] Figure 20 is Figure 19 A partial cross-sectional schematic diagram along the Q6-Q6' direction in

[0049] Figure 21 Another schematic diagram of the display panel of at least one embodiment of the present disclosure;

[0050] Figure 22 A schematic diagram of the display device of at least one embodiment of the present disclosure. Detailed Description of the Embodiments

[0051] The embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The embodiments can be implemented in multiple different forms. It is easy for those of ordinary skill in the art to understand the fact that the manner and content can be transformed into other forms without departing from the spirit and scope of the present disclosure. Therefore, the present disclosure should not be construed as being limited only to the content described in the following embodiments. Without conflict, the embodiments and features in the embodiments of the present disclosure can be combined arbitrarily with each other.

[0052] In the accompanying drawings, sometimes for clarity, the size, thickness of a layer, or area of one or more constituent elements are exaggerated. Therefore, one embodiment of the present disclosure is not necessarily limited to this size, and the shape and size of one or more components in the drawings do not reflect the true scale. In addition, the drawings schematically show ideal examples, and one embodiment of the present disclosure is not limited to the shape or values shown in the drawings.

[0053] The ordinal numbers such as "first", "second", "third", etc. in this specification are set to avoid confusion of constituent elements, rather than to limit in terms of quantity. "Multiple" in the present disclosure means two or more quantities.

[0054] In this specification, for convenience, terms indicating orientation or positional relationship such as "middle", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are used to describe the positional relationship of constituent elements with reference to the accompanying drawings, which are only for the convenience of describing this specification and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present disclosure. The positional relationship of the constituent elements changes appropriately according to the direction of the described constituent elements. Therefore, it is not limited to the terms described in the specification, and can be replaced appropriately according to the situation.

[0055] In this specification, unless otherwise clearly specified and defined, the terms "installed", "connected", and "linked" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection, or an indirect connection through an intermediate member, or the internal communication of two elements. For those of ordinary skill in the art, the meanings of the above terms in this disclosure can be understood according to the circumstances.

[0056] In this specification, "electrically connected" includes the case where constituent elements are connected together through an element having a certain electrical effect. There is no particular limitation on the "element having a certain electrical effect" as long as it can transmit electrical signals between the constituent elements to be connected. Examples of the "element having a certain electrical effect" include not only electrodes and wirings, but also switching elements such as transistors, resistors, inductors, capacitors, and other elements having various functions.

[0057] In this specification, a transistor refers to an element including at least three terminals: a gate, a drain, and a source. The transistor has a channel region between the drain (drain electrode terminal, drain region, or drain electrode) and the source (source electrode terminal, source region, or source electrode), and current can flow through the drain, the channel region, and the source. In this specification, the channel region refers to the region where current mainly flows.

[0058] In this specification, the first pole can be the drain, the second pole can be the source, or the first pole can be the source and the second pole can be the drain. In the case of using transistors with opposite polarities or when the current direction changes during circuit operation, etc., the functions of the "source" and "drain" are sometimes interchanged. Therefore, in this specification, the "source" and "drain" can be interchanged. In addition, the gate can also be referred to as the control pole.

[0059] In this specification, "parallel" means a state where the angle formed by two straight lines is -10° or more and 10° or less, and thus also includes a state where the angle is -5° or more and 5° or less. In addition, "perpendicular" means a state where the angle formed by two straight lines is 80° or more and 100° or less, and thus also includes an angle state of 85° or more and 95° or less.

[0060] In this specification, circles, ellipses, triangles, rectangles, trapezoids, pentagons, or hexagons, etc. are not strictly defined and can be approximate circles, approximate ellipses, approximate triangles, approximate rectangles, approximate trapezoids, approximate pentagons, or approximate hexagons, etc. There may be some small deformations caused by tolerances, such as chamfers, arc edges, and deformations.

[0061] "About" and "substantially" in the present disclosure refer to not strictly defining boundaries and allowing for situations within the process and measurement error ranges. In the present disclosure, "substantially the same" means that the numerical values differ by within 10%. "Symmetry" in the present disclosure does not strictly define boundaries and allows for substantially symmetric situations within the process and measurement error ranges.

[0062] In the present disclosure, A extending along the B direction means that A may include a main body part and a secondary part connected to the main body part. The main body part is in the shape of a line, a line segment, or a strip, the main body part extends along the B direction, and the length of the main body part extending along the B direction is greater than the length of the secondary part extending along other directions. When it is said that "A extends along the B direction" in the present disclosure, it always means that "the main body part of A extends along the B direction". In the present disclosure, A and B being an integral structure means that A and B are connected to each other and integrally formed.

[0063] In some implementation manners, the display panel may integrate a touch control structure. The display panel may include: a liquid crystal display (LCD) substrate, or may be an organic light emitting diode (OLED) display substrate, or may be a plasma display device (PDP) display substrate, or may be an electrophoretic display (EPD) display substrate. For example, the display panel may include an OLED display substrate and a touch control structure. The touch control structure may be disposed on the encapsulation layer of the display substrate to form a structure of Touch on Thin Film Encapsulation (abbreviated as Touch on TFE). The display structure and the touch control structure are integrated together, having advantages such as being thin, light, and foldable, and can meet the product requirements such as flexible folding and narrow bezels, and are widely applied to display fields such as mobile phones and televisions (TVs).

[0064] In some examples, the Touch on TFE structure mainly includes a Flexible Multi-Layer On Cell (abbreviated as FMLOC) structure and a Flexible Single-Layer On Cell (abbreviated as FSLOC) structure. The FMLOC structure is based on the working principle of mutual capacitance detection. Generally, two layers of metal are used to form a driving (Tx) electrode and a sensing (Rx) electrode, and the touch control integrated circuit (IC, Integrated Circuit) realizes the touch control action by detecting the mutual capacitance between the driving electrode and the sensing electrode. The FSLOC structure is based on the working principle of self-capacitance (or voltage) detection. Generally, a single layer of metal is used to form a touch control electrode, and the touch control integrated circuit realizes the touch control action by detecting the self-capacitance (or voltage) of the touch control electrode.

[0065] In the research, the inventor noticed that the adhesion performance between the film layers of the display panel integrating the display structure and the touch control structure is not strong. During the reliability test (such as the drop test), film layer peeling is likely to occur in the lower border area of the display panel. For example, peeling is likely to occur between the touch control structure and the display structure in the lower border area.

[0066] This embodiment provides a display panel, including: a substrate, a display structure layer, and a touch control structure layer. The substrate includes a display area and a first border area located on one side of the display area. The display structure layer at least includes a first organic film layer and a first inorganic film layer, and the first organic film layer is located on the side of the first inorganic film layer away from the substrate. The touch control structure layer is located on the side of the display structure layer away from the substrate and at least includes a second organic film layer and a second inorganic film layer. The second organic film layer is located on the side of the second inorganic film layer away from the display structure layer. In the first border area, a part of the second organic film layer is in contact with the first organic film layer, or a part of the second inorganic film layer is in contact with the first inorganic film layer.

[0067] For the display panel provided in this embodiment, by setting the second organic film layer in the first border area to be in contact with the first organic film layer, or the second inorganic film layer to be in contact with the first inorganic film layer, the adhesion effect between the display structure layer and the touch control structure layer in the first border area can be improved, thereby enhancing the strength of the first border area and preventing the occurrence of film layer peeling caused by impact.

[0068] In some exemplary embodiments, the first frame area may include: a first signal access area and a wiring setting area located on one side of the first signal access area close to the display area. The wiring setting area may include at least a plurality of touch transmission lines, the first signal access area may include at least a plurality of touch contact pads, and at least one of the plurality of touch transmission lines may be connected to at least one touch contact pad. The second inorganic film layer may include: a plurality of first hollow structures in the wiring setting area, and the second organic film layer may contact the first organic film layer through the plurality of first hollow structures. At least one first hollow structure may be located on at least one side of at least one touch transmission line. For example, the plurality of first hollow structures may be located on one side or both sides of the plurality of touch transmission lines; or, at least one first hollow structure may be located between two adjacent touch transmission lines. In some examples, the plurality of first hollow structures may include at least one of the following: a plurality of inorganic holes, a plurality of inorganic grooves. For example, the plurality of first hollow structures may include a plurality of inorganic holes, or may include a plurality of inorganic grooves, or may include a plurality of inorganic holes and a plurality of inorganic grooves. The second inorganic film layer in the first hollow structure of this example can be removed to expose the surface of the first organic film layer away from the substrate, so that the surface of the second organic film layer close to the substrate can contact the surface of the first organic film layer away from the substrate. In this example, multiple first hollow structures are provided to achieve the contact between the second organic film layer and the first organic film layer in the first frame area, which can improve the adhesion effect between the display structure layer and the touch structure layer in the first frame area, thereby enhancing the strength of the first frame area and preventing the film layer from peeling off due to impact.

[0069] In some exemplary embodiments, the first organic film layer may include: a plurality of recessed portions in the routing setting area, and the plurality of recessed portions may be connected to the plurality of first hollow structures in a one-to-one correspondence. The orthographic projection of the recessed portion on the substrate may cover the orthographic projection of the corresponding first hollow structure on the substrate, and the orthographic projection of the second inorganic film layer on the substrate may partially overlap with the orthographic projection of the recessed portion on the substrate. For example, the plurality of recessed portions may include: a plurality of first recessed portions corresponding to a plurality of inorganic holes; or, the plurality of recessed portions may include: a plurality of second recessed portions corresponding to a plurality of inorganic grooves. The first organic film layer in the recessed portion may be removed so that the minimum distance between the surface of the recessed portion away from the substrate side and the substrate may be less than the minimum distance between the surface of the area outside the recessed portion away from the substrate side and the substrate. In this example, the second organic film layer may be filled in the recessed portion formed by the first organic film layer and the first hollow structure formed by the second inorganic film layer, thereby forming a Dingmao structure, which may further increase the bonding force between the second organic film layer and the first organic film layer.

[0070] In some exemplary embodiments, the trace setting area may further include: at least one first power supply line. The first power supply line may be located on a side of the plurality of touch transmission lines close to the substrate, and a positive projection of the first power supply line on the substrate may partially overlap with a positive projection of the plurality of touch transmission lines on the substrate. At least one of the plurality of inorganic grooves may extend along an edge of the first power supply line. In this example, by providing the inorganic groove along the edge of the first power supply line, it is beneficial to block the propagation path of cracks, and moreover, the bonding force between the second organic film layer and the first organic film layer can be increased through the inorganic groove.

[0071] In some exemplary embodiments, the display panel may further include: a cutting edge located on one side of the first power supply line, and at least one of the plurality of inorganic grooves may extend along the cutting edge. In this example, by providing the inorganic groove along the cutting edge, it is beneficial to block the extension of cracks towards the middle of the first border area; moreover, the bonding force between the second organic film layer and the first organic film layer can be increased through the inorganic groove.

[0072] In some exemplary embodiments, the trace setting area may include: a first edge area, a first trace area, a middle area, a second trace area, and a second edge area arranged in sequence along a first direction. The plurality of touch transmission lines may be located in the first trace area and the second trace area. The trace setting area may be located on one side of the display area along a second direction. The first direction and the second direction may intersect. For example, the first direction may be perpendicular to the second direction. A plurality of first hollow structures may be located in at least one of the first edge area, the middle area, and the second edge area. For example, the plurality of first hollow structures may be located in the first edge area, or may be located in the second edge area, or may be located in the middle area, or may be located in the first edge area and the second edge area, or may be located in the first edge area and the middle area, or may be located in the second edge area and the middle area, or may be located in the first edge area, the second edge area, and the middle area. The setting manner of the first hollow structure in this example can etch the second inorganic film layer in the area where the first organic film layer remains, realizing the contact between the second organic film layer and the first organic film layer, thereby increasing the bonding force between the two.

[0073] In some exemplary embodiments, the first frame area may include: a first signal access area and a wiring setting area located on one side of the first signal access area close to the display area. The wiring setting area may include at least a plurality of touch transmission lines, the first signal access area may include at least a plurality of touch contact pads, and at least one of the plurality of touch transmission lines is connected to at least one touch contact pad. The first organic film layer may include: a plurality of second hollow structures in the wiring setting area, and the second inorganic film layer may contact the first inorganic film layer through the plurality of second hollow structures. The plurality of second hollow structures may be located on at least one side of the plurality of touch transmission lines. For example, the plurality of second hollow structures may be located on one side of the plurality of touch transmission lines, or may be located on both sides of the plurality of touch transmission lines. In some examples, the plurality of second hollow structures may include at least one of the following: a plurality of organic holes, a plurality of organic grooves. For example, the plurality of second hollow structures may include a plurality of organic holes, or may include a plurality of organic grooves, or may include a plurality of organic holes and a plurality of organic grooves. The first organic film layer in the second hollow structure of this example can be removed to expose the surface of the first inorganic film layer away from the substrate, so that the surface of the second inorganic film layer close to the substrate can contact the surface of the first inorganic film layer away from the substrate. In this example, multiple second hollow structures are set to achieve the contact between the second inorganic film layer and the first inorganic film layer in the first frame area, which can improve the adhesion effect between the display structure layer and the touch structure layer in the first frame area, thereby enhancing the strength of the first frame area and preventing the film layer from peeling off due to impact.

[0074] In some exemplary embodiments, the display panel may further include: a plurality of isolation columns located in the wiring setting area, and the orthographic projection of the second hollow structure on the substrate may cover the orthographic projection of at least one isolation column on the substrate. The isolation column is located between the second inorganic film layer and the first inorganic film layer. In some examples, the isolation column may be located in the second source and drain metal layer. In this example, by arranging the isolation column in the second hollow structure, the bonding force between the second inorganic film layer and the first inorganic film layer can be further increased.

[0075] In some exemplary embodiments, the isolation column may include: a first metal layer, a second metal layer, and a third metal layer sequentially arranged in a direction away from the substrate, the orthographic projection of the third metal layer on the substrate may cover the orthographic projections of the second metal layer and the first metal layer on the substrate, and the edge of the third metal layer may protrude from the edge of the second metal layer and the first metal layer. In this example, the isolation column may form a Dingmao structure in contact between the second inorganic film layer and the first inorganic film layer, thereby further increasing the bonding force between the second inorganic film layer and the first inorganic film layer.

[0076] The solution of this embodiment is illustrated below through multiple examples.

[0077] Figure 1Schematic diagram of a display panel according to at least one embodiment of the present disclosure. Figure 1 The figure shows a planar schematic diagram of the display panel before the bending process. In some examples, such as Figure 1 shown, the display panel may include: a display area AA, and a border area BB surrounding the display area AA. For example, the border area BB may include: a first border area B1 on one side of the display area AA, and border areas on other sides of the display area AA (for example, including a second border area B2, a third border area B3, and a fourth border area B4). Among them, the first border area B1 may be, for example, the lower border area of the display panel, the second border area B2 may be, for example, the upper border area of the display panel, the third border area B3 may be, for example, the left border area of the display panel, and the fourth border area B4 may be, for example, the right border area of the display panel.

[0078] In some examples, such as Figure 1 shown, the display area AA may be a flat area, including a plurality of sub-pixels PX that make up the pixel array. The plurality of sub-pixels PX may be configured to display dynamic pictures or still images. The display area AA may be referred to as an active area. In some examples, the display area AA may be rectangular. However, this embodiment is not limited thereto. For example, the display area AA may be circular, oval, or other shapes. In some examples, the display panel may be a flexible panel, and thus the display panel may be deformable, such as curling, bending, folding, or rolling up.

[0079] In some examples, such as Figure 1 shown, the display area AA may further include: a plurality of gate lines GL and a plurality of data lines DL. The plurality of gate lines GL may extend along a first direction X, and the plurality of data lines DL may extend along a second direction Y. The orthographic projections of the plurality of gate lines GL and the plurality of data lines DL on the substrate may intersect to form a plurality of sub-pixel regions, and one sub-pixel PX may be disposed in each sub-pixel region. The plurality of data lines DL may be electrically connected to the plurality of sub-pixels PX, and the plurality of data lines DL may be configured to provide data signals to the plurality of sub-pixels PX. The plurality of gate lines GL may be electrically connected to the plurality of sub-pixels PX, and the plurality of gate lines GL may be configured to provide gate control signals to the plurality of sub-pixels PX. In some examples, the gate control signal may include a scan signal and a light emission control signal, or may include a scan signal, or may include a scan signal, a reset control signal, and a light emission control signal.

[0080] In some examples, such as Figure 1As shown, the first direction X may be the extending direction of the gate line GL in the display area AA (e.g., the row direction), and the second direction Y may be the extending direction of the data line DL in the display area AA (e.g., the column direction). The first direction X and the second direction Y may intersect with each other, for example, they may be perpendicular to each other.

[0081] In some examples, a pixel unit in the display area AA may include three sub-pixels, namely a red sub-pixel, a green sub-pixel, and a blue sub-pixel. However, this embodiment is not limited thereto. In some examples, a pixel unit may include four sub-pixels, namely a red sub-pixel, a green sub-pixel, a blue sub-pixel, and a white sub-pixel. Alternatively, a pixel unit may include four sub-pixels, which may include a red sub-pixel, a blue sub-pixel, and two green sub-pixels.

[0082] In some examples, a sub-pixel may include: a pixel circuit and a light-emitting element electrically connected to the pixel circuit. The pixel circuit may include multiple transistors and at least one capacitor. For example, the pixel circuit may be a 3T1C, 4T1C, 5T1C, 5T2C, 6T1C, 7T1C, or 8T1C structure. Herein, T in the above circuit structures refers to a thin-film transistor, C refers to a capacitor, the number in front of T represents the number of thin-film transistors in the circuit, and the number in front of C represents the number of capacitors in the circuit.

[0083] In some examples, the multiple transistors in the pixel circuit may be P-type transistors, or may be N-type transistors. Using the same type of transistors in the pixel circuit can simplify the process flow, reduce the process difficulty of the display panel, and improve the yield of the product. In some other examples, the multiple transistors in the pixel circuit may include P-type transistors and N-type transistors.

[0084] In some examples, the multiple transistors in the pixel circuit may use low-temperature poly-silicon thin-film transistors, or may use oxide thin-film transistors, or may use low-temperature poly-silicon thin-film transistors and oxide thin-film transistors. The active layer of the low-temperature poly-silicon thin-film transistor uses low-temperature poly-silicon (LTPS, Low Temperature Poly-Silicon), and the active layer of the oxide thin-film transistor uses an oxide semiconductor (Oxide). The low-temperature poly-silicon thin-film transistor has advantages such as high mobility and fast charging, and the oxide thin-film transistor has advantages such as low leakage current. Integrating the low-temperature poly-silicon thin-film transistor and the oxide thin-film transistor on a display panel, that is, an LTPS+Oxide (abbreviated as LTPO) display panel, can utilize the advantages of both, can achieve low-frequency driving, can reduce power consumption, and can improve the display quality.

[0085] In some examples, the shape of the light-emitting element of a sub-pixel can be rectangular, rhombic, pentagonal, or hexagonal. When a pixel unit includes three sub-pixels, the light-emitting elements of the three sub-pixels can be arranged in a horizontal side-by-side, vertical side-by-side, or pyramid arrangement; when a pixel unit includes four sub-pixels, the light-emitting elements of the four sub-pixels can be arranged in a horizontal side-by-side, vertical side-by-side, or square arrangement. However, this embodiment is not limited thereto.

[0086] In some examples, the light-emitting element can be any one of a light-emitting diode (LED), an organic light-emitting diode (OLED), a quantum dot light-emitting diode (QLED), a micro-LED (including: mini-LED or micro-LED), etc. For example, the light-emitting element can be an OLED, and the light-emitting element can emit red light, green light, blue light, or white light, etc. under the drive of its corresponding pixel circuit. The color of the light emitted by the light-emitting element can be determined as needed. In some examples, the light-emitting element can include: an anode, a cathode, and an organic light-emitting layer located between the anode and the cathode. The anode of the light-emitting element can be electrically connected to the corresponding pixel circuit. However, this embodiment is not limited thereto.

[0087] Figure 2 It is a partial cross-sectional schematic diagram of the display area of the display panel according to at least one embodiment of the present disclosure. Figure 2 The structure of a sub-pixel in the display area is taken as an example for illustration. In this example, it is described by taking the case where the types of multiple transistors in the pixel circuit are the same. For example, multiple transistors in the pixel circuit can all adopt low-temperature polysilicon thin-film transistors or all adopt oxide thin-film transistors. In other examples, multiple transistors in the pixel circuit can adopt low-temperature polysilicon thin-film transistors and oxide thin-film transistors. In addition, this example is described by taking the display panel integrating a mutual capacitance touch structure to form an FMLOC structure as an example.

[0088] In some examples, as Figure 2 shown, in the direction perpendicular to the display panel, the display area of the display panel can include: a substrate 10, and a circuit structure layer 20, a light-emitting structure layer 30, a packaging structure layer 40, and a touch structure layer 50 sequentially provided on the substrate 10. Among them, the display structure layer can at least include the circuit structure layer 20 and the light-emitting structure layer 30. The circuit structure layer 20 can at least include: pixel circuits of multiple sub-pixels, and the pixel circuit of each sub-pixel can include multiple transistors and at least one capacitor. The light-emitting structure layer 30 can at least include: light-emitting elements of multiple sub-pixels.

[0089] In some examples,Figure 2 Taking, for example, a thin-film transistor 21 and a capacitor 22 included in the pixel circuit of each sub-pixel as an illustration. In some examples, the circuit structure layer 20 of the display area may include: a semiconductor layer disposed on the substrate 10, a first gate metal layer, a second gate metal layer, a first source-drain metal layer, and a second source-drain metal layer. A buffer layer 101 may be disposed between the semiconductor layer and the substrate 10, a first gate insulating layer 102 may be disposed between the semiconductor layer and the first gate metal layer, a second gate insulating layer 103 may be disposed between the first gate metal layer and the second gate metal layer, an interlayer insulating layer 104 may be disposed between the second gate metal layer and the first source-drain metal layer, a passivation layer 105 and a first planarization layer 106 may be disposed between the first source-drain metal layer and the second source-drain metal layer, and a second planarization layer 107 may be disposed on the side of the second source-drain metal layer away from the substrate 10. Among them, the buffer layer 101 can prevent harmful substances in the substrate 10 from invading the interior of the display panel, and can also increase the adhesion of the film layers in the display panel to the substrate. In some examples, the buffer layer 101, the first gate insulating layer 102, the second insulating layer 103, the interlayer insulating layer 104, and the passivation layer 105 may be inorganic insulating layers, and the first planarization layer 106 and the second planarization layer 107 may be organic insulating layers. However, this embodiment is not limited thereto. In some other examples, a bottom shielding metal layer (BSM, Bottom Shielding Metal) may be disposed on the side of the buffer layer close to the substrate, and the bottom shielding metal layer may be configured to at least partially cover the active layer of the thin-film transistor of the pixel circuit to avoid the influence of external light on the performance of the thin-film transistor. In some other examples, the passivation layer may be omitted between the first source-drain metal layer and the second source-drain metal layer, and only the first planarization layer may be disposed between the first source-drain metal layer and the second source-drain metal layer. In some other examples, the first planarization layer may be omitted between the first source-drain metal layer and the second source-drain metal layer, and only the passivation layer may be disposed. In some other examples, a third source-drain metal layer may be further disposed on the side of the second planarization layer away from the substrate, a third planarization layer may be disposed on the side of the third source-drain metal layer away from the substrate, and the second planarization layer and the third planarization layer may be organic insulating layers.

[0090] In some examples, such as Figure 2As shown, the semiconductor layer in the display area may include at least: an active layer 210 of a thin film transistor 21. The active layer 210 of the thin film transistor 21 may include: a first region 2101, a second region 2102, and a channel region 2100 located between the first region 2101 and the second region 2102. The first gate metal layer may include at least: a gate electrode 213 of the thin film transistor 21, and a first electrode plate 221 of the capacitor 22. The orthographic projection of the gate electrode 213 of the thin film transistor 21 on the substrate 10 may cover the orthographic projection of the channel region 2100 of the active layer 210 on the substrate 10. The second gate metal layer may include at least: a second electrode plate 222 of the capacitor 22. The orthographic projections of the second electrode plate 222 and the first electrode plate 221 of the capacitor 22 on the substrate 10 may at least partially overlap, for example, the two may overlap. The first source-drain metal layer may include at least: a source electrode 211 and a drain electrode 212 of the thin film transistor 21. The interlayer insulating layer 104 may be provided with a plurality of vias (for example, including a first pixel via and a second pixel via) in the display area. The interlayer insulating layer 104, the second gate insulating layer 103 and the first gate insulating layer 102 in the first pixel via may be removed to expose at least a portion of the surface of the first region 2101 of the active layer 210; the interlayer insulating layer 104, the second gate insulating layer 103 and the first gate insulating layer 102 in the second pixel via may be removed to expose at least a portion of the surface of the second region 2102 of the active layer 210. The source electrode 211 of the thin film transistor 21 may be electrically connected to the first region 2101 of the active layer 210 through the first pixel via, and the drain electrode 212 may be electrically connected to the second region 2102 of the active layer 210 through the second pixel via. The second source-drain metal layer may include at least: a first transfer electrode 231. The first transfer electrode 231 can be electrically connected to the drain 212 of the thin film transistor 21 of the pixel circuit through the third pixel via hole opened in the passivation layer 105 and the first flat layer 106. The first transfer electrode 231 can be electrically connected to the first electrode 301 (e.g., anode) of the light-emitting element through the fourth pixel via hole opened in the second flat layer 107. In this example, the electrical connection between the pixel circuit and the light-emitting element can be achieved through the first transfer electrode 231. In other examples, when the circuit structure layer includes a third source-drain metal layer, the third source-drain metal layer can include at least a second transfer electrode, and the second transfer electrode is electrically connected to the first transfer electrode and the first electrode of the light-emitting element. This embodiment is not limited to this.

[0091] In some examples, the gate line of the display area may be located in the first gate metal layer, the data line of the display area may be located in the second source-drain metal layer, and the high potential power line of the display area may be located in the second source-drain metal layer. This embodiment is not limited to this. The circuit structure layer of this example may include two source-drain metal layers, which can avoid arranging more wiring in a single source-drain metal layer, thereby facilitating the realization of a narrow frame structure. In other examples, the circuit structure layer may include three or more source-drain metal layers.

[0092] In some examples, such as Figure 2 shown, the light-emitting structure layer 30 may include: a pixel definition layer 304 and a plurality of light-emitting elements. For example, each light-emitting element may include: a stacked first electrode 301, an organic light-emitting layer 302, and a second electrode 303. The first electrode 301 of the light-emitting element may be an anode, and the first electrode 301 may be disposed on the second flat layer 107 and electrically connected to the first transfer electrode 231 through a fourth pixel via formed in the second flat layer 107. The pixel definition layer 304 is disposed on the first electrode 301 and the second flat layer 107, and the pixel definition layer 304 may be provided with a plurality of pixel openings, and at least a part of the surface of a corresponding first electrode 301 may be exposed through one pixel opening. At least a part of the organic light-emitting layer 302 may be disposed in one pixel opening and connected to the corresponding first electrode 301. The second electrode 303 may be disposed on the organic light-emitting layer 302 and connected to the organic light-emitting layer 302. The organic light-emitting layer 302 can emit light of a corresponding color under the drive of the first electrode 301 and the second electrode 303. An isolation column layer may also be disposed on the side of the pixel definition layer 304 away from the substrate 10, and the isolation column layer may include a plurality of isolation columns (PS).

[0093] In some examples, the organic light-emitting layer 302 of the light-emitting element may include a light-emitting layer (EML, Emitting Layer), and one or more of a hole injection layer (HIL, Hole Injection Layer), a hole transport layer (HTL, Hole Transport Layer), a hole block layer (HBL, Hole Block Layer), an electron block layer (EBL, Electron Block Layer), an electron injection layer (EIL, Electron Injection Layer), and an electron transport layer (ETL, Electron Transport Layer). Under the voltage drive of the first electrode 301 and the second electrode 303, the light-emitting characteristics of the organic material can be used to emit light according to the required gray scale.

[0094] In some examples, the light-emitting layers of light-emitting elements of different colors may be different. For example, a red light-emitting element includes a red light-emitting layer, a green light-emitting element includes a green light-emitting layer, and a blue light-emitting element includes a blue light-emitting layer. To reduce the process difficulty and improve the yield, the hole injection layer and the hole transport layer on one side of the light-emitting layer may use a common layer, and the electron injection layer and the electron transport layer on the other side of the light-emitting layer may use a common layer. In some examples, any one or more of the hole injection layer, the hole transport layer, the electron injection layer, and the electron transport layer may be fabricated by a single process (a single evaporation process or a single inkjet printing process), and isolation may be achieved by the surface step difference of the formed film layer or by means such as surface treatment. For example, any one or more of the hole injection layer, the hole transport layer, the electron injection layer, and the electron transport layer corresponding to adjacent sub-pixels may be isolated. In some examples, the organic light-emitting layer may be formed by evaporation using a fine metal mask (FMM) or an open mask, or by an inkjet process.

[0095] In some examples, as Figure 2 shown, the encapsulation structure layer 40 may include a stacked first encapsulation layer 401, a second encapsulation layer 402, and a third encapsulation layer 403. Among them, the first encapsulation layer 401 and the third encapsulation layer 403 may use inorganic materials, the second encapsulation layer 402 may use organic materials, and the second encapsulation layer 402 may be disposed between the first encapsulation layer 401 and the third encapsulation layer 403 to ensure that external moisture cannot enter the light-emitting element. However, this embodiment is not limited thereto. For example, the encapsulation structure layer may adopt a five-layer stacked structure of inorganic / organic / inorganic / organic / inorganic.

[0096] Figure 3 is a partial plan view of the touch structure layer of at least one embodiment of the present disclosure. In some examples, as Figure 3As shown, the touch structure layer of the display area may include: a plurality of first touch units 530 and a plurality of second touch units 540. The first touch unit 530 may have a linear shape extending along the first direction X, and the plurality of first touch units 530 may be arranged in sequence along the second direction Y. The second touch unit 540 may have a linear shape extending along the second direction Y, and the plurality of second touch units 540 may be arranged in sequence along the first direction X. Each first touch unit 530 may include a plurality of first touch electrodes 531 and a first connection portion 532 arranged in sequence along the first direction X, and the first touch electrodes 531 and the first connection portion 532 may be alternately arranged and sequentially connected. Each second touch unit 540 may include a plurality of second touch electrodes 541 arranged in sequence along the second direction Y, the plurality of second touch electrodes 541 may be arranged at intervals, and adjacent second touch electrodes 541 may be connected to each other through a second connection portion 542. In some examples, the film layer where the second connection portion 542 is located may be different from the film layers where the first touch electrodes 531 and the second touch electrodes 541 are located.

[0097] In some examples, as Figure 2 As shown, in the direction perpendicular to the display panel, the touch structure layer 50 of the display area may include: a touch buffer layer (TBL) 501, a first touch conductive layer 511, a touch interlayer insulating layer (TLD) 502, a second touch conductive layer 512, and a touch protection layer (TOC) 503 arranged in sequence. The touch buffer layer 501 and the touch interlayer insulating layer 502 may be inorganic insulating layers, and the touch protection layer 503 may be an organic insulating layer. However, this embodiment is not limited thereto. In some other examples, the touch buffer layer may be omitted.

[0098] In some examples, as Figure 2 and Figure 3As shown, multiple first touch electrodes 531, multiple second touch electrodes 541, and multiple first connection portions 532 can be disposed in the same layer on the first touch conductive layer 511 and can be formed through the same patterning process. The first touch electrode 531 and the first connection portion 532 can be an integrally connected structure. The second connection portion 542 can be disposed on the second touch conductive layer 512, and the second connection portion 542 can be connected to an adjacent second touch electrode 221 through a via hole formed in the touch interlayer insulating layer 502. In some other examples, multiple first touch electrodes 531, multiple second touch electrodes 541, and multiple second connection portions 542 can be disposed in the same layer on the first touch conductive layer 511. The second touch electrode 541 and the second connection portion 542 can be an integrally connected structure. The first connection portion 532 can be disposed on the second touch conductive layer 512, and the first connection portion 532 can be connected to an adjacent first touch electrode 531 through a via hole formed in the touch interlayer insulating layer 502. In some examples, the first touch electrode 531 can be a driving (Tx) electrode, and the second touch electrode 541 can be a sensing (Rx) electrode. Alternatively, the first touch electrode 531 can be a sensing (Rx) electrode, and the second touch electrode 541 can be a driving (Tx) electrode. This embodiment does not limit this.

[0099] In some examples, as Figure 3 shown, the first touch electrode 531 and the second touch electrode 541 can have a rhombus shape, for example, a regular rhombus, or a horizontally elongated rhombus, or a vertically elongated rhombus. In some other examples, the first touch electrode 531 and the second touch electrode 541 can have any one or more of a triangle, a square, a trapezoid, a parallelogram, a pentagon, a hexagon, and other polygons. The embodiments of the present disclosure do not limit this here.

[0100] In some examples, as Figure 3 shown, the first touch electrode 531 and the second touch electrode 541 can be in the form of transparent conductive electrodes. In some other examples, the first touch electrode 531 and the second touch electrode 541 can be in the form of a metal mesh. The metal mesh can be formed by interweaving multiple metal wires. The metal mesh can include multiple mesh patterns, and the mesh patterns can be polygons formed by multiple metal wires. The first touch electrode 531 and the second touch electrode 541 in the form of a metal mesh have advantages such as low resistance, small thickness, and fast response speed.

[0101] In some examples, as Figure 1As shown, the display structure layers of the third border region B3 and the fourth border region B4 of the display panel may each include: a peripheral circuit region, a power line region, a crack dam region, and a cutting region, which are sequentially arranged in a direction away from the display region AA. Among them, the peripheral circuit region is connected to the display region AA and may at least include a gate driving circuit (for example, including a plurality of cascaded shift registers). The plurality of shift registers may be electrically connected to a plurality of gate lines GL in the display region AA and may be configured to provide gate control signals to the plurality of gate lines GL. The power line region is connected to the peripheral circuit region and may at least include a low-potential power line. The low-potential power line may extend along a direction parallel to the edge of the display region AA and is connected to the cathodes of the light-emitting elements in the display region AA. The crack dam region may be connected to the power line region and may at least include a plurality of cracks provided on the composite insulating layer. The cutting region may be connected to the crack dam region and may at least include cutting grooves provided on the composite insulating layer. The cutting grooves may be configured to perform cutting along the cutting grooves respectively after all the film layers of the display panel are prepared.

[0102] In some examples, as Figure 1 shown, the touch structure layers of the third border region B3 and the fourth border region B4 of the display panel may respectively include: a plurality of touch leads 252. The plurality of touch leads 252 may be electrically connected to the first touch unit and the second touch unit respectively. The plurality of touch leads 252 may all be located in the first touch conductive layer or all be located in the second touch conductive layer; or the plurality of touch leads 252 may be alternately arranged in the first touch conductive layer and the second touch conductive layer. However, this embodiment does not limit this.

[0103] In some examples, as Figure 1 shown, the first border region B1 of the display panel may include: a fan-out routing region B11, a bending region B12, a routing setting region B13, a second signal access region B15, and a first signal access region B14, which are arranged in a direction away from the display region AA. Figure 1 Only several routing lines in the first border region B1 are schematically shown for illustration. The number of routing lines in the first border region B1 in this embodiment is not limited.

[0104] In some examples, as Figure 1As shown, the fan-out routing area B11 can be connected to the display area AA. The fan-out routing area B11 can be provided with at least a first power supply fan-out line, a second power supply fan-out line, multiple display fan-out lines, and multiple touch lead-out lines 252. The second power supply fan-out line can be configured to connect to the high-potential power supply line of the display area AA, and the first power supply fan-out line can be configured to connect to the low-potential power supply lines within the third border area B13 and the fourth border area B14. The multiple display fan-out lines can at least include: multiple data fan-out lines, multiple driving fan-out lines (not shown in the figure). The multiple data fan-out lines can be electrically connected to multiple data lines DL in the display area AA. For example, the multiple data fan-out lines and the multiple data lines DL can be electrically connected in one-to-one correspondence. The multiple data fan-out lines can extend from the fan-out routing area B11 to the bending area B12 in a fan-out routing manner. The multiple driving fan-out lines can extend from the third border area B3 and the fourth border area B4 to the fan-out routing area B11. The multiple driving fan-out lines can be electrically connected to the gate driving circuits within the third border area B3 and the fourth border area B4. The multiple driving fan-out lines can be configured to provide control signals to the gate driving circuits. For example, the control signals can include a start signal, a clock signal, etc. The multiple touch lead-out lines 252 can extend from the third border area B3 and the fourth border area B4 to the fan-out routing area B11, and can be located on the side away from the substrate of the multiple display fan-out lines.

[0105] In some examples, as Figure 1 shown, the bending area B12 is connected between the fan-out routing area B11 and the routing setting area B13, and can be configured to bend the routing setting area B13 to the back of the display area AA. The bending area B12 can be provided with multiple bending connection lines. For example, it can include multiple data bending connection lines, multiple driving bending connection lines (not shown in the figure), multiple touch bending connection lines 253, a first power supply bending connection line (not shown in the figure), and a second power supply bending connection line (not shown in the figure). The first power supply bending connection line can be electrically connected to the first power supply fan-out line, and the second power supply bending connection line can be electrically connected to the second power supply fan-out line. The multiple data bending connection lines can be electrically connected to the multiple data fan-out lines, the multiple driving bending connection lines can be electrically connected to the multiple driving fan-out lines, and the multiple touch bending connection lines 253 are electrically connected to the multiple touch lead-out lines 252.

[0106] In some examples, as Figure 1 shown, the multiple bending connection lines can all extend along the second direction Y. In some examples, the multiple bending connection lines can be of the same layer structure. In some examples, the multiple touch bending connection lines 253 can be located on opposite sides of the multiple data bending connection lines and the multiple driving bending connection lines in the first direction X. This embodiment does not limit this.

[0107] In some examples, as Figure 1As shown, multiple signal transmission lines can be set in the routing setting area B13. For example, it can include: multiple touch transmission lines 251 and multiple data transmission lines. The multiple data transmission lines can be electrically connected to multiple data bending connection lines, for example, in one-to-one correspondence, and are connected to multiple data fan-out lines through the multiple data bending connection lines. The multiple touch transmission lines 251 can be electrically connected to multiple touch bending connection lines 253, for example, in one-to-one correspondence. The multiple touch transmission lines 251 can be connected to multiple touch lead-out lines 252 in the fan-out routing area B11 through the multiple touch bending connection lines 253.

[0108] In some examples, as Figure 1 As shown, the first border area B1 can include: at least one first signal access area B14 and at least one second signal access area B15. This example is illustrated with one first signal access area B14 and one second signal access area B15. In other examples, the display panel can be a large-size panel, and the display panel can include multiple first signal access areas B14 and multiple second signal access areas B15. The multiple first signal access areas B14 can be arranged in sequence along the first direction X, and the multiple second signal access areas B15 can be arranged in sequence along the first direction X. The first signal access area B14 can be located on the side of the second signal access area B15 away from the display area AA. In other words, the second signal access area B15 can be located on the side of the first signal access area B14 closer to the bending area B12 in the second direction Y.

[0109] In some examples, as Figure 1 As shown, the second signal access area B15 can also be referred to as a driver chip setting area. Multiple contact pads can be set in the second signal access area B15, and the multiple contact pads can be configured to be bound and connected to at least one driver chip. The driver chip can be configured to generate the driving signals required for driving the sub-pixels and provide the driving signals to the data lines in the display area. For example, the driving signals can include data signals for driving the sub-pixels.

[0110] In some examples, as Figure 1As shown, the first signal access area B14 can also be referred to as a circuit bonding area. Multiple contact pads (such as including multiple touch contact pads 254) can be provided in the first signal access area B14. The multiple contact pads can be arranged in a row along the first direction X, for example, and the multiple contact pads can be configured to be bonded and connected to at least one circuit board (such as a flexible printed circuit (FPC)). For example, an external circuit board can be configured to generate a touch signal provided to the touch structure layer and receive a touch sensing signal. Multiple touch transmission lines 251 in the trace setting area B13 can be connected to the multiple touch contact pads 254. For example, one touch transmission line 251 can be connected to at least one touch contact pad 254.

[0111] Figure 4 This is a partial schematic diagram of the first border area of at least one embodiment of the present disclosure. In some examples, as Figure 4 shown, the trace setting area B13 of the first border area B1 can include: first power supply lines 62a and 62b, a second power supply line 61, multiple touch transmission lines, and multiple data transfer lines (not shown in the figure). The multiple touch transmission lines can be divided into a first group of touch transmission lines 251a and a second group of touch transmission lines 251b.

[0112] In some examples, as Figure 4 shown, the first power supply lines 62a and 62b can be located on opposite sides of the second power supply line 61 in the first direction X. The second power supply line 61 can be connected to the second power supply fan-out line in the fan-out trace area B11 through at least three second power supply bending connection lines. Two ends of the second power supply line 61 can be respectively connected to at least one second power supply contact pad in the first signal access area B14. The first power supply line 62a can be connected to the first power supply fan-out line in the fan-out trace area B11 through at least two first power supply bending connection lines, and the first power supply line 62b can be connected to the first power supply fan-out line in the fan-out trace area B11 through at least two first power supply bending connection lines. The second signal access area B15 can be located on the side of the second power supply line 61 away from the bending area B12.

[0113] In some examples, as Figure 4 shown, the first power supply lines 62a and 62b can be generally in a zigzag shape extending along the second direction Y. The first power supply lines 62a and 62b can adopt a non-uniform width design. The second power supply line 61 can be generally in an n-shape. The touch transmission lines can be generally in a zigzag shape extending along the second direction Y.

[0114] In some examples, as Figure 4As shown, the first group of touch transmission lines 251a can be connected to multiple touch lead-out lines 252 in the fan-out routing area B11 through multiple touch bending connection lines in the bending area B12, and the second group of touch transmission lines 251b can be connected to multiple touch lead-out lines 252 in the fan-out routing area B11 through multiple touch bending connection lines in the bending area B12. The multiple touch bending connection lines connected by the first group of touch transmission lines 251a can be located between two first power bending connection lines connected by the first power supply line 62a, and the multiple touch bending connection lines connected by the second group of touch transmission lines 251b can be located between two first power bending connection lines connected by the first power supply line 62b.

[0115] In some examples, as Figure 4 shown, the orthographic projection of the first group of touch transmission lines 251a on the substrate and the orthographic projection of the first power supply line 62a on the substrate can partially overlap, and the orthographic projection of the second group of touch transmission lines 251b on the substrate and the orthographic projection of the first power supply line 62b on the substrate can partially overlap. The first group of touch transmission lines 251a can be located on the side of the first power supply line 62a away from the substrate, and the second group of touch transmission lines 251b can be located on the side of the first power supply line 62a away from the substrate. The orthographic projections of the first group of touch transmission lines 251a and the second group of touch transmission lines 251b on the substrate and the orthographic projection of the second power supply line 61 on the substrate can have no overlap.

[0116] In some examples, as Figure 4 shown, the multiple contact pads in the first signal access area B14 can include: multiple first power contact pads, multiple second power contact pads, and multiple touch contact pads (such as Figure 1 the touch contact pad 254 shown). Both ends of the second power supply line 61 can be respectively connected to at least one second power contact pad, the first power supply line 62a can be connected to at least one first power contact pad, the first power supply line 62b can be connected to at least one first power contact pad, and multiple touch transmission lines can be connected to multiple touch contact pads. In the first signal access area B14, the first power contact pads can be located on the side of the second power contact pads away from the second signal access area B15, and the touch contact pads can be located on the side of the first power contact pads away from the second power contact pads. The multiple contact pads in the second signal access area B15 can include multiple input contact pads and multiple output contact pads, and the multiple output contact pads can be located on the side of the multiple input contact pads close to the display area. The multiple output contact pads can be connected to multiple data transmission lines in the routing setting area B13, and the multiple input contact pads can be connected to multiple intermediate contact pads in the first signal access area B14 through multiple pin connection lines. The multiple intermediate contact pads in the first signal access area B14 can be located between the multiple second power contact pads in the first direction X.

[0117] In some examples, such as Figure 4 shown and Figure 5 shown, the trace setting area B13 may include: a first edge area B161, a first trace area B164, an intermediate area B162, a second trace area, and a second edge area B163 that are sequentially arranged along the first direction X. The first trace area B164 may be provided with a first group of touch transmission lines 251a and a first power supply line 62a, and the second trace area may be provided with a second group of touch transfer lines 251b and a first power supply line 62b. The second power supply line 61 may be located in the intermediate area B162. The intermediate area B162 may be located on a side of the second signal access area B15 close to the bending area B12.

[0118] Figure 5 is Figure 4 a partial enlarged schematic view of area C1 in Figure 6 is Figure 5 a partial cross-sectional schematic view along the Q1-Q1' direction in Figure 7 is Figure 5 a partial cross-sectional schematic view along the Q2-Q2' direction in

[0119] In some examples, such as Figures 4 to 7 shown, the first trace area B164 may include: a first power supply line 62a and a first group of touch transmission lines 251a that are sequentially arranged on the substrate 10. The edge of the first trace area B164 in the first direction X may be the edge of the first power supply line 62a in the first direction X. The first edge area B161 may be located on a side of the first power supply line 62a close to the left edge of the display panel, and the intermediate area B162 may be located on a side of the first power supply line 62a away from the first edge area B161. At least a part of the second power supply line 61 is located within the intermediate area B162.

[0120] In some examples, such as Figures 5 to 7As shown, the second power supply line 61 may include a first voltage trace 61-1 and a second voltage trace 61-2 that are connected to each other. The second voltage trace 61-2 may be located on a side of the first voltage trace 61-1 away from the substrate 10. The orthographic projection of the second voltage trace 61-2 on the substrate may at least partially overlap with the orthographic projection of the first voltage trace 61-1 on the substrate. For example, the orthographic projection of the second voltage trace 61-2 on the substrate may cover the orthographic projection of the first voltage trace 61-1 on the substrate. For example, the first voltage trace 61-1 may be located in the first source-drain metal layer, and the second voltage trace 61-2 may be located in the second source-drain metal layer. The second voltage trace 61-2 may be connected to the first voltage trace 61-1 through vias or slots formed in the first planarization layer 106 and the passivation layer 105. In this example, by setting the second power supply line to adopt a double-layer trace design, it may be beneficial to reduce the impedance of the second power supply line.

[0121] In some examples, as Figure 6 and Figure 7 shown, the first power supply line 62a may include a third voltage trace 62a-1 and a fourth voltage trace 62a-2 that are connected to each other. The fourth voltage trace 62a-2 may be located on a side of the third voltage trace 62a-1 away from the substrate 10. The orthographic projection of the fourth voltage trace 62a-2 on the substrate may at least partially overlap with the orthographic projection of the third voltage trace 62a-1 on the substrate. For example, the orthographic projection of the fourth voltage trace 62a-2 on the substrate may cover the orthographic projection of the third voltage trace 62a-1 on the substrate. For example, the third voltage trace 62a-1 may be located in the first source-drain metal layer, and the fourth voltage trace 62a-2 may be located in the second source-drain metal layer. The fourth voltage trace 62a-2 may be connected to the third voltage trace 62a-1 through vias or slots formed in the first planarization layer 106 and the passivation layer 105. In this example, by setting the first power supply line to adopt a double-layer trace design, it may be beneficial to reduce the impedance of the first power supply line.

[0122] In some examples, as Figures 5 to 7As shown, the first set of touch transmission lines 251a may include multiple touch adapter lines. At least one touch transmission line may include: a first touch trace 2511 and a second touch trace 2512 that are connected to each other. The second touch trace 2512 may be located on a side of the first touch trace 2511 away from the substrate 10. A positive projection of the second touch trace 2512 on the substrate and a positive projection of the first touch trace 2511 on the substrate may at least partially overlap. For example, the positive projection of the second touch trace 2512 on the substrate may cover the positive projection of the first touch trace 2511 on the substrate. For example, the second touch trace 2512 may be located in a second touch conductive layer, and the first touch trace 2511 may be located in a first touch conductive layer. The second touch trace 2512 may be connected to the first touch trace 2511 through a via or a slot opened in the touch interlayer insulating layer 502. In this example, by setting the touch transmission line to adopt a double-layer trace design, it may be beneficial to reduce the impedance of the touch transmission line.

[0123] In some examples, as Figures 4 to 7 shown, the first organic film layer of the display structure layer may include: a first planarization layer 106 and a second planarization layer 107, and the first inorganic film layer may include: a buffer layer 101, a first gate insulating layer 102, a second gate insulating layer 103, an interlayer insulating layer 104, and a passivation layer 105 that are sequentially disposed on the substrate 10. The second organic film layer of the touch structure layer may include a touch protection layer 503, and the second inorganic film layer may include a touch buffer layer 501 and a touch interlayer insulating layer 502. However, this embodiment is not limited thereto. In some other examples, the touch buffer layer may be omitted, and the second inorganic film layer may include a touch interlayer insulating layer. In some other examples, the first planarization layer may be omitted, and the first organic film layer may include the second planarization layer. In some other examples, a third planarization layer may further be disposed on a side of the second planarization layer away from the substrate, and the first organic film layer may include: the third planarization layer, the second planarization layer, and the first planarization layer.

[0124] In some examples, as Figures 4 to 6 shown, a first hollow-out structure 651 may be provided in the first edge region B161. For example, a shape of an edge of the first hollow-out structure 651 may be substantially the same as a shape of the first edge region B161. The second inorganic film layer (including the touch buffer layer 501 and the touch interlayer insulating layer 502) in the first edge region B161 may be removed to form the first hollow-out structure 651 that exposes a partial surface of the second planarization layer 107 away from the substrate 10. The touch protection layer 503 of the first edge region B161 may be in direct contact with the surface of the second planarization layer 107 away from the substrate 10 through the first hollow-out structure 651, thereby improving an adhesion effect between the display structure layer and the touch structure layer. For example, the second inorganic film layer in the first edge region B161 may be entirely removed.

[0125] In some examples, asFigure 4 , Figure 5 and Figure 7 As shown in Figure 4 , Figure 5 and Figure 7 , a first hollow structure 652 can be provided in the middle region B162. For example, the edge shape of the first hollow structure 652 can be substantially the same as the shape of the middle region B162. The second inorganic film layer (including the touch buffer layer 501 and the touch interlayer insulating layer 502) within the first hollow structure 652 can be removed to form the first hollow structure 652 that exposes a partial surface of the second flat layer 107 away from the substrate 10. The touch protection layer 503 of the middle region B162 can be in direct contact with the surface of the second flat layer 107 away from the substrate 10 through the first hollow structure 652, thereby enhancing the adhesion effect between the display structure layer and the touch structure layer. For example, the second inorganic film layer within the middle region B162 can be completely removed. Similarly, a first hollow structure with the second inorganic film layer (including the touch buffer layer 501 and the touch interlayer insulating layer 502) removed can be formed within the second edge region B163, such that the touch protection layer 503 of the second edge region B163 can be in direct contact with the surface of the second flat layer 107 away from the substrate 10 through the first hollow structure.

[0126] In some examples, the second flat layer within the first signal access region B14 and the second signal access region B15 can be removed to ensure the connection between the contact pads and the corresponding circuits or signal traces. The first flat layer and the second flat layer within the bending region B12 can be removed to improve the bending performance by thinning the film layer thickness of the bending region B12.

[0127] In this example, by removing the second inorganic film layer in the first edge region, the middle region, and the second edge region of the trace setting region, a first hollow structure that exposes the first organic film layer is formed, thereby achieving a large - area lap joint between the touch protection layer and the second flat layer, and thus enhancing the adhesion effect between the display structure layer and the touch structure layer. In some other examples, the second inorganic film layer in at least two of the first edge region, the middle region, and the second edge region can be removed to increase the adhesion force between the second organic film layer and the first organic film layer. In some other examples, the second inorganic film layer in one of the first edge region, the middle region, and the second edge region can be removed to increase the adhesion force between the second organic film layer and the first organic film layer.

[0128] Figure 8 Another partial schematic diagram of the first border region of at least one embodiment of the present disclosure. Figure 9 is Figure 8 a partial enlarged schematic diagram of the middle region C2 in Figure 10A is Figure 9 a partial cross - sectional schematic diagram along the Q3 - Q3' direction in Figure 10B is Figure 9 another partial cross - sectional schematic diagram along the Q3 - Q3' direction in

[0129] In some examples, such as Figures 8 to 10A shown, the first power supply line 62b may include: a third voltage trace 62b-1 and a fourth voltage trace 62b-2 that are interconnected. The fourth voltage trace 62b-2 may be located on a side of the third voltage trace 62b-1 away from the substrate 10. The orthographic projection of the fourth voltage trace 62b-2 on the substrate may at least partially overlap with the orthographic projection of the third voltage trace 62b-1 on the substrate. For example, the orthographic projection of the fourth voltage trace 62b-2 on the substrate may cover the orthographic projection of the third voltage trace 62b-1 on the substrate. For example, the third voltage trace 62b-1 may be located in the first source-drain metal layer, and the fourth voltage trace 62b-2 may be located in the second source-drain metal layer. The fourth voltage trace 62b-2 may be connected to the third voltage trace 62b-1 through vias or slots opened in the first planarization layer 106 and the passivation layer 105. By setting the first power supply line to adopt a double-layer trace design in this example, it may be beneficial to reduce the impedance of the first power supply line.

[0130] In some examples, such as Figures 8 to 10A shown, a plurality of first hollow structures may be provided in the first edge region, the second edge region, and the middle region of the trace setting area B13. The plurality of first hollow structures in this example may include a plurality of inorganic holes (for example, including a plurality of first inorganic holes V1). The plurality of first inorganic holes V1 in the first edge region, the second edge region, and the middle region may be regularly arranged, or may be partially arrayed and partially irregularly arranged. In the middle region, the orthographic projection of the plurality of first inorganic holes V1 on the substrate may overlap with the orthographic projection of the second power supply line 61 on the substrate. In some examples, such as Figure 8 shown, the orthographic projection of the first inorganic hole V1 on the substrate may be a rounded rectangle, or a circle, or an ellipse. However, this embodiment does not limit this.

[0131] In some examples, such as Figure 10A shown, the second inorganic film layer (including the touch interlayer insulating layer 502 and the touch buffer layer 501) in the plurality of first inorganic holes V1 may be removed, exposing a partial surface of the second planarization layer 107 away from the substrate 10. The touch protection layer 503 may be in direct contact with the surface of the second planarization layer 107 away from the substrate 10 through the plurality of first inorganic holes V1, thereby increasing the adhesion force by overlapping with the surface of the second planarization layer 107.

[0132] In some examples, such as Figure 8 and Figure 9As shown, a plurality of inorganic holes (for example, including a plurality of second inorganic holes V2) may be provided in the second routing area where the touch transmission line 251 and the first power supply line 62b are provided. For example, the plurality of second inorganic holes V2 may be located between two adjacent touch transmission lines 251, or may be located on one side of the plurality of touch transmission lines 251. The orthographic projection of the plurality of second inorganic holes V2 on the substrate may not overlap with the orthographic projection of the touch transmission line 251 on the substrate, but may overlap with the orthographic projection of the first power supply line 62b on the substrate. The second inorganic film layer (including the touch interlayer insulating layer 502 and the touch buffer layer 501) in the plurality of second inorganic holes V2 may be removed to expose a portion of the surface of the second flat layer 107 away from the substrate 10, and the touch protection layer 503 may directly contact the surface of the second flat layer 107 away from the substrate 10 through the plurality of second inorganic holes V2, thereby increasing the adhesion between the touch protection layer 503 and the second flat layer 107. The structure of the first routing area may refer to the description of the structure of the second routing area, so it will not be described in detail here.

[0133] In some examples, such as Figure 10B As shown, the first organic film layer (including the second flat layer 107 and the first flat layer 106) in the first edge area, the second edge area and the middle area of ​​the wiring setting area B13 may be provided with a plurality of recessed portions (for example, including a plurality of first recessed portions 653). The plurality of first recessed portions 653 and the plurality of first inorganic holes V1 may correspond one to one, and each first recessed portion 653 may be connected to the corresponding first inorganic hole V1. The minimum distance between the surface of the first recessed portion 653 away from the substrate 10 and the substrate 10 may be less than the minimum distance between the surface of the first organic film layer other than the first recessed portion 653 away from the substrate 10 and the substrate 10. The orthographic projection of the first recessed portion 653 on the substrate 10 may cover the orthographic projection of the corresponding first inorganic hole V1 on the substrate 10. The orthographic projection of the second inorganic film layer on the substrate 10 may partially overlap with the orthographic projection of the first recessed portion 653 on the substrate.

[0134] In some examples, when etching the touch interlayer insulating layer 502, by increasing the etching amount, a portion of the second flat layer 107 (or the second flat layer 107 and a portion of the first flat layer 106) may be overetched, thereby forming a first inorganic hole V1 in the second inorganic film layer, and simultaneously forming a first recessed portion 653 connected to the first inorganic hole in the first organic film layer. The second organic film layer (including the touch protection layer 503) may fill the first recessed portion 653 and the first inorganic hole V1 to form a Dingmao structure, thereby further increasing the bonding force between the second organic film layer and the first organic film layer.

[0135] The rest of the description about the display panel of this example can refer to the description of the aforementioned embodiment, so it will not be repeated here.

[0136] Figure 11 Another partial schematic diagram of the first border area of at least one embodiment of the present disclosure. Figure 12 is Figure 11 A partial enlarged schematic diagram of area C3 in Figure 13A is Figure 12 A partial cross-sectional schematic diagram in the direction of Q4-Q4' in Figure 13B is Figure 12 Another partial cross-sectional schematic diagram in the direction of Q4-Q4' in

[0137] In some examples, as Figures 11 to 13A shown, a plurality of first hollow structures may be provided in the trace setting area B13. The plurality of first hollow structures in this example may include a plurality of inorganic grooves (for example, including a plurality of first inorganic grooves K1, a plurality of second inorganic grooves K2, a plurality of third inorganic grooves K3, and a plurality of fourth inorganic grooves K4). The plurality of first inorganic grooves K1, the plurality of second inorganic grooves K2, and the plurality of fourth inorganic grooves K4 may be located in the first edge area and the second edge area, and the plurality of third inorganic grooves K3 may be located in the middle area. The plurality of first inorganic grooves K1 may extend along the edge of the first power supply line. For example, the plurality of first inorganic grooves K1 in the second edge area may extend along the edge of the first power supply line 62b close to the right edge of the display panel. The plurality of second inorganic grooves K2 may extend in the second direction Y and are regularly arranged in the first edge area and the second edge area in the first direction X. The plurality of fourth inorganic grooves K4 may extend along the cutting edge on one side of the trace setting area. For example, the fourth inorganic groove K4 in the first edge area may extend along the cutting edge B32 on the left side of the trace setting area B13 of the display panel, and the fourth inorganic groove K4 in the second edge area may extend along the cutting edge B31 on the right side of the trace setting area B14 of the display panel. In the first edge area and the second edge area, the plurality of second inorganic grooves K2 may be surrounded by the plurality of first inorganic grooves K1 and the plurality of fourth inorganic grooves K4. The plurality of third inorganic grooves K3 in the middle area may extend along the edge of the first power supply line close to the second power supply line 61. For example, Figure 12 the plurality of third inorganic grooves K3 shown in the middle area may extend along the edge of the first power supply line 62a close to the second power supply line 61. However, this embodiment is not limited thereto.

[0138] In some examples, the orthographic projections of the first inorganic groove K1, the third inorganic groove K3, and the fourth inorganic groove K4 on the substrate may be substantially in a broken line shape extending in the second direction Y, and the orthographic projection of the second inorganic groove K2 on the substrate may be substantially in a straight line shape extending in the second direction Y. However, this embodiment is not limited thereto. For example, the second inorganic groove may extend in the first direction; or the second inorganic groove may extend in a third direction that intersects both the first direction and the second direction.

[0139] In some examples, asFigure 13A As shown, the second inorganic film layer (including the touch interlayer insulating layer 502 and the touch buffer layer 501) in the plurality of first inorganic grooves K1 can be removed to expose part of the surface of the second flat layer 107, and the touch protection layer 503 can directly contact the surface of the second flat layer 107 away from the substrate 10 through the plurality of first inorganic grooves K1, thereby increasing the adhesion between the touch protection layer 503 and the second flat layer 107. The structures of the second inorganic groove K2, the third inorganic groove K3 and the fourth inorganic groove K4 are similar to those of the first inorganic groove K1, so they are not described here. In this example, by setting a plurality of inorganic grooves in the first edge area and the second edge area, the cracks can be isolated from extending from the edge to the middle of the display panel.

[0140] In some examples, such as Figure 13B As shown, the first organic film layer (including the second flat layer 107 and the first flat layer 106) of the first edge region, the second edge region and the middle region of the wiring setting area B13 may be provided with a plurality of recessed portions (for example, including a plurality of second recessed portions 654). The plurality of second recessed portions 654 may correspond to a plurality of inorganic grooves (including a plurality of first inorganic grooves K1, a plurality of second inorganic grooves K2, a plurality of third inorganic grooves K3 and a plurality of fourth inorganic grooves K4). Each second recessed portion 654 may be connected to the corresponding inorganic groove. The minimum distance between the surface of the second recessed portion 654 away from the substrate 10 and the substrate 10 may be less than the minimum distance between the surface of the first organic film layer other than the second recessed portion 654 away from the substrate 10 and the substrate 10. The orthographic projection of the second recessed portion 654 on the substrate 10 may cover the orthographic projection of the corresponding inorganic groove (for example, the first inorganic groove K1 or the second inorganic groove K2 or the third inorganic groove K3 or the fourth inorganic groove K4) on the substrate 10. The orthographic projection of the second inorganic film layer on the substrate 10 and the orthographic projection of the second recessed portion 654 on the substrate may partially overlap.

[0141] In some examples, when etching the touch interlayer insulating layer 502, by increasing the etching amount, a portion of the second flat layer 107 (or the second flat layer 107 and a portion of the first flat layer 106) can be overetched, thereby forming a plurality of inorganic grooves in the second inorganic film layer, and at the same time forming a second recessed portion 654 connected to the inorganic grooves in the first organic film layer. The second organic film layer (including the touch protection layer 503) can fill the second recessed portion 654 and the inorganic grooves to form a Dingmao structure, thereby further increasing the bonding force between the second organic film layer and the first organic film layer. The rest of the description of the display panel of this example can refer to the description of the aforementioned embodiment, so it will not be repeated here.

[0142] In some other examples, the middle region may further include at least one of the following: a plurality of fifth inorganic grooves extending in the first direction, a plurality of sixth inorganic grooves extending in the second direction, and a plurality of seventh inorganic grooves extending in a third direction intersecting the first direction and the second direction. The structures of the fifth inorganic grooves, the sixth inorganic grooves, and the seventh inorganic grooves may refer to the structure of the first inorganic groove, and thus will not be described herein again.

[0143] In some other examples, the middle region of the trace setting region may be provided with Figure 13A the inorganic grooves as shown, and the first edge region and the second edge region may be provided with Figure 13B the inorganic grooves and recesses as shown. In some other examples, the middle region of the trace setting region may be provided with Figure 10A a plurality of inorganic holes as shown, and the first edge region and the second edge region may be provided with the inorganic grooves and recesses as shown in FIG. 13. In some other examples, the second inorganic film layer in the middle region of the trace setting region may be removed, and the first edge region and the second edge region may be provided with a plurality of inorganic holes and a plurality of recesses, or may be provided with a plurality of inorganic grooves and a plurality of recesses. However, this embodiment is not limited thereto.

[0144] Figure 14 This is another partial schematic diagram of the first frame region of at least one embodiment of the present disclosure. Figure 15 It is Figure 14 a partial enlarged schematic diagram of region C4 in Figure 16 It is Figure 15 a partial cross-sectional schematic diagram along the Q5-Q5' direction in

[0145] In some examples, such as Figures 14 to 16As shown, a plurality of second hollow structures may be provided in the wiring setting area B13. The plurality of second hollow structures in this example may include a plurality of organic grooves (for example, including a plurality of first organic grooves K11, a plurality of second organic grooves K12, a plurality of third organic grooves K13, and a plurality of fourth organic grooves K14). The plurality of first organic grooves K11 and the plurality of second organic grooves K12 may be located in the first edge area and the second edge area, and the plurality of third organic grooves K13 and the plurality of fourth organic grooves K14 may be located in the middle area. The plurality of first organic grooves K11 may extend along the edge of the first power supply line. For example, the plurality of first organic grooves K11 in the second edge area may extend along the edge of the first power supply line 62b close to the right edge of the display panel. The plurality of second organic grooves K12 may extend in the second direction Y and be regularly arranged in the first edge area and the second edge area in the first direction X. The plurality of third organic grooves K13 in the middle area may extend along the edge of the first power supply line. For example, the plurality of third organic grooves K13 in the middle area may extend along the edge of the first power supply line 62a close to the second power supply line 61. The plurality of fourth organic grooves K14 may extend in the second direction Y. The orthographic projection of the plurality of organic grooves in the middle area on the substrate and the orthographic projection of the second power supply line 61 on the substrate may have no overlap.

[0146] In some examples, the orthographic projection of the first organic groove K11 and the third organic groove K13 on the substrate may be substantially in a broken line shape extending in the second direction Y, and the orthographic projection of the second organic groove K12 and the fourth organic groove K14 on the substrate may be substantially in a straight line shape extending in the second direction Y. However, this embodiment is not limited thereto. For example, the second organic groove may extend in the first direction; or, the fourth organic groove may extend in the first direction; or, the second organic groove and the fourth organic groove may extend in the first direction; or, at least one of the second organic groove and the fourth organic groove may extend in a third direction that intersects both the first direction and the second direction.

[0147] In some examples, such as Figure 16As shown, the first organic film layer (including the second planarization layer 107 and the first planarization layer 106) in multiple organic grooves can be removed to expose a partial surface of the first inorganic film layer. For example, a partial surface of the passivation layer 105 away from the substrate 10 is exposed. The second inorganic film layer (including the touch buffer layer 501 and the touch interlayer insulating layer 502) can be in direct contact with the surface of the first inorganic film layer away from the substrate through the organic grooves, thereby increasing the adhesion between the second inorganic film layer and the first inorganic film layer. For example, the touch buffer layer 501 can be in direct contact with a partial surface of the passivation layer 105 away from the substrate 10 through the organic grooves, and the touch interlayer insulating layer 502 can be filled in multiple organic grooves. However, this embodiment is not limited thereto. In some other examples, the organic grooves can expose partial surfaces of the passivation layer 105 and the interlayer insulating layer 104, such that the second inorganic film layer can be in direct contact with the passivation layer 105 and the interlayer insulating layer 104.

[0148] In some other examples, the organic grooves in the first edge region and the second edge region may further include: a plurality of fifth organic grooves extending along the cutting edge of the region where the traces of the display panel are arranged. The arrangement manner of the organic grooves can refer to the arrangement manner of the inorganic grooves in the foregoing embodiment, so details are not described herein again.

[0149] For the remaining descriptions of the display panel in this example, reference can be made to the descriptions of the foregoing embodiment, so details are not described herein again.

[0150] Figure 17 This is another partial schematic diagram of the first border region of at least one embodiment of the present disclosure. In some examples, as Figure 17 shown, a plurality of second hollow structures can be provided in the first edge region, the second edge region, and the middle region of the trace arrangement region B13. The plurality of second hollow structures in this example may include a plurality of organic holes (for example, including a plurality of first organic holes V11). The plurality of first organic holes V11 in the first edge region, the second edge region, and the middle region can be regularly arranged, or can be partially arranged in an array and partially arranged irregularly. In the middle region, the orthographic projection of the plurality of first organic holes V11 on the substrate may not overlap with the orthographic projection of the second power supply line 61 on the substrate. In some examples, the orthographic projection of the first organic hole V11 on the substrate may be a rounded rectangle, or a circle, or an ellipse. However, this embodiment is not limited thereto.

[0151] In some examples, the first organic film layer (including the second planarization layer 107 and the first planarization layer 106) in the plurality of first organic holes V11 can be removed to expose a partial surface of the passivation layer away from the substrate, and the second inorganic film layer can be in direct contact with the surface of the first inorganic film layer away from the substrate through the plurality of first organic holes V11, thereby increasing the adhesion between the second inorganic film layer and the first inorganic film layer. For the cross-sectional structure of the organic holes, reference can be made to Figure 16The cross-sectional structure of the organic groove shown is not described in detail here.

[0152] In some other examples, a plurality of organic holes may be provided in the middle area of the wiring setting area, and a plurality of organic grooves may be provided in the first edge area and the second edge area. In some other examples, a plurality of organic grooves may be provided in the middle area of the wiring setting area, and a plurality of organic holes may be provided in the first edge area and the second edge area. In some other examples, a plurality of inorganic grooves or a plurality of inorganic holes may be provided in the middle area of the wiring setting area, and a plurality of organic holes or a plurality of organic grooves may be provided in the first edge area and the second edge area. In some other examples, a plurality of organic holes or a plurality of organic grooves may be provided in the middle area of the wiring setting area, and a plurality of inorganic holes or a plurality of inorganic grooves may be provided in the first edge area and the second edge area.

[0153] For the remaining descriptions of the display panel of this example, reference may be made to the descriptions of the foregoing embodiments, and thus will not be elaborated here.

[0154] Figure 18 This is another partial schematic diagram of the first border area of at least one embodiment of the present disclosure. Figure 19 is Figure 18 a partial enlarged schematic diagram of area C5 in Figure 20 is Figure 19 a partial cross-sectional schematic diagram along the Q6-Q6' direction in

[0155] In some examples, as Figures 18 to 20 shown, a plurality of second hollow structures and a plurality of isolation columns (for example, including a plurality of first isolation columns 661, a plurality of second isolation columns 662, a plurality of third isolation columns 663, and a plurality of fourth isolation columns 664) may be provided in the wiring setting area B13. The plurality of second hollow structures in this example may include a plurality of organic grooves, for example, the organic grooves shown as Figure 14 shown.

[0156] In some examples, a plurality of isolation columns may be located in a plurality of organic grooves. For example, one isolation column may be provided in each organic groove. For example, the first isolation column 661 may be located in the first organic groove, the second isolation column 662 may be located in the second organic groove, the third isolation column 663 may be located in the third organic groove, and the fourth isolation column 664 may be located in the fourth organic groove. The orthographic projections of the first isolation column 661 and the third isolation column 663 on the substrate may be substantially in a broken line shape, and the orthographic projections of the second isolation column 662 and the fourth isolation column 664 on the substrate may be substantially in a strip shape extending along the second direction Y. However, this embodiment is not limited thereto. In some other examples, a plurality of isolation columns arranged along the extending direction of the organic groove may be provided in at least one organic groove; or, a plurality of isolation columns arranged in a direction intersecting the extending direction of the organic groove may be provided in at least one organic groove.

[0157] In some examples, asFigure 20 As shown, the first isolation column 661 is used as an example for explanation. The first isolation column 661 can be located in the second source-drain metal layer, and can be in the same layer structure as the first power supply line 62b-2. The second source-drain metal layer can adopt a three-layer metal stacking structure. For example, the first isolation column 661 can include a first metal layer 6611, a second metal layer 6612 and a third metal layer 6613 arranged in sequence along a direction away from the substrate 10, and the second metal layer 6612 is located between the first metal layer 6611 and the third metal layer 6613, and is in direct contact with the first metal layer 6611 and the third metal layer 6613. Among them, the material of the first metal layer 6611 and the third metal layer 6613 can be the same, such as titanium (Ti), and the material of the second metal layer 6612 can be aluminum (Al).

[0158] In some examples, such as Figure 20 As shown, the cross-sectional shape of the first isolation column 661 can be roughly T-shaped. The cross-sectional shape of the first isolation column 661 refers to a plane perpendicular to the plane where the substrate is located and perpendicular to the extension direction of the first isolation column 661. The orthographic projection of the third metal layer 6613 of the first isolation column 661 on the substrate can cover the orthographic projections of the second metal layer 6612 and the first metal layer 6611 on the substrate. The edge of the third metal layer 6613 can protrude from the edges of the second metal layer 6612 and the first metal layer 6611. The second inorganic film layer (including the touch buffer layer 501 and the touch interlayer insulating layer 502) can cover the edge portion of the third metal layer 6613 protruding from the second metal layer 6612, the edges of the second metal layer 6612 and the first metal layer 6611, and the second inorganic film layer can also contact the surface of the passivation layer 105 of the first inorganic film layer away from the substrate. This example can form a Dingmao structure between the second inorganic film layer and the isolation column and the first inorganic film layer, which can increase the adhesion between the first inorganic film layer and the second inorganic film layer. The structures of the second to fourth isolation columns may refer to the structure of the first isolation column, and thus will not be described in detail herein.

[0159] In other examples, the cross-sectional shape of the isolation column may be roughly rectangular or trapezoidal, for example, the orthographic projection of the first metal layer on the substrate may cover the orthographic projection of the second metal layer on the substrate, and the orthographic projection of the second metal layer on the substrate may cover the orthographic projection of the third metal layer on the substrate.

[0160] In other examples, the cross-sectional shape of the isolation column may be roughly an inverted trapezoid, for example, the orthographic projection of the third metal layer on the substrate may cover the orthographic projection of the second metal layer on the substrate, and the orthographic projection of the second metal layer on the substrate may cover the orthographic projection of the first metal layer on the substrate.

[0161] The rest of the description about the display panel of this example can refer to the description of the aforementioned embodiment, so it will not be repeated here.

[0162] The above embodiments can be combined with each other. In some examples, a plurality of inorganic grooves or a plurality of inorganic holes can be provided in the middle area of the wiring setting area, and a plurality of inorganic grooves and a plurality of isolation posts can be provided in the first edge area and the second edge area. In other examples, the second inorganic film layer in the middle area of the wiring setting area can be removed, and a plurality of inorganic grooves and a plurality of isolation posts can be provided in the first edge area and the second edge area. However, the present embodiment is not limited thereto.

[0163] Figure 21 Another schematic diagram of a display panel according to at least one embodiment of the present disclosure. In some examples, as Figure 21 shown, the first border area B1 of the display panel may include: a fan-out wiring area B11, a wiring setting area B13, a second signal access area B15, and a first signal access area B14 arranged along the direction away from the display area AA. The fan-out wiring area B11 of this example is communicated with the wiring setting area B13. The touch lead-out line 252 located in the fan-out wiring area B11 can be connected to the touch transmission line 251 in the wiring setting area B13, and the touch transmission line 251 can be connected to the touch contact pad 254 in the first signal access area B14. Regarding the structure of the wiring setting area in this example, reference can be made to the description of the structure of the wiring setting area in the foregoing embodiments, so it will not be repeated here.

[0164] The present embodiment further provides a display panel, including: a substrate. The substrate includes a display area and a first border area on one side of the display area. The first border area at least includes: a first inorganic film layer, a first organic film layer, a second inorganic film layer, a second organic film layer, and a plurality of touch transmission lines provided on the substrate; the first organic film layer is located on the side of the first inorganic film layer away from the substrate, the second inorganic film layer is located on the side of the first organic film layer away from the substrate, and the second organic film layer is located on the side of the second inorganic film layer away from the substrate. The second inorganic film layer includes a plurality of first hollow structures, the second organic film layer is in contact with the first organic film layer through the plurality of first hollow structures, and the distance between the first hollow structure and the orthographic projection of the touch transmission line on the substrate is greater than 0; in other words, the first hollow structure and the orthographic projection of the touch transmission line on the substrate do not overlap. Alternatively, the first organic film layer includes a plurality of second hollow structures, the second inorganic film layer is in contact with the first inorganic film layer through the plurality of second hollow structures, and the distance between the second hollow structure and the orthographic projection of the touch transmission line on the substrate is greater than 0; in other words, the second hollow structure and the orthographic projection of the touch transmission line on the substrate do not overlap.

[0165] The display panel provided in this embodiment enhances the adhesion effect between the film layers in the first border area and the strength of the first border area by providing a first hollow structure in the second inorganic film layer or a second hollow structure in the first organic film layer, so that the second organic film layer contacts the first organic film layer, or the second inorganic film layer contacts the first inorganic film layer, thereby preventing the film layers from peeling off due to impact.

[0166] In some examples, the plurality of first hollow structures may include at least one of the following: a plurality of inorganic holes, a plurality of inorganic grooves.

[0167] In some examples, the plurality of second hollow structures may include at least one of the following: a plurality of organic holes, a plurality of organic grooves.

[0168] For the related structures of the display panel of this embodiment, reference may be made to the description of the foregoing embodiment, so it will not be elaborated herein.

[0169] Figure 22 Schematic diagram of a display device according to at least one embodiment of the present disclosure. As Figure 22 shown, this embodiment provides a display device 91, including the display panel 910 of the foregoing embodiment. In some examples, the display panel 910 may be an OLED display panel, such as an OLED display panel integrated with a touch structure. The display device 91 may be: a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, a navigator, or any other product or component with a display function, or may be a product or component with touch and display functions.

[0170] The drawings in the present disclosure only relate to the structures involved in the present disclosure, and other structures may refer to the general design. Without conflict, the embodiments of the present disclosure, that is, the features in the embodiments, may be combined with each other to obtain new embodiments. It should be noted that the above embodiments or implementation manners are merely exemplary and not restrictive. Therefore, the present disclosure is not limited to the content shown and described in detail herein. Various modifications, substitutions or omissions may be made to the form and details of the implementation without departing from the scope of the present disclosure.

Claims

1. A display panel, characterized in that, comprising: a substrate including a display area and a first border area on one side of the display area; a display structure layer located on the substrate, at least including a first organic film layer and a first inorganic film layer, and the first organic film layer is located on the side of the first inorganic film layer away from the substrate; a touch control structure layer located on the side of the display structure layer away from the substrate, at least including a second organic film layer and a second inorganic film layer, and the second organic film layer is located on the side of the second inorganic film layer away from the display structure layer; in the first border area, a part of the second organic film layer is in contact with the first organic film layer, or a part of the second inorganic film layer is in contact with the first inorganic film layer.

2. The display panel according to claim 1, characterized in that, the first border area includes: a first signal access area and a wiring arrangement area on the side of the first signal access area close to the display area; the wiring arrangement area at least includes a plurality of touch control transmission lines, the first signal access area at least includes a plurality of touch control contact pads, and at least one touch control transmission line among the plurality of touch control transmission lines is connected to at least one touch control contact pad; the second inorganic film layer in the wiring arrangement area includes: a plurality of first hollow structures, and the second organic film layer is in contact with the first organic film layer through the plurality of first hollow structures; at least one of the plurality of first hollow structures is located on at least one side of at least one of the plurality of touch control transmission lines.

3. The display panel according to claim 2, characterized in that, the plurality of first hollow structures include at least one of the following: a plurality of inorganic holes, a plurality of inorganic grooves.

4. The display panel according to claim 3, characterized in that, the first organic film layer in the wiring arrangement area includes: a plurality of recesses, the plurality of recesses communicate with the plurality of first hollow structures one by one, the orthographic projection of the recess on the substrate covers the orthographic projection of the corresponding first hollow structure on the substrate, and the orthographic projection of the second inorganic film layer on the substrate partially overlaps with the orthographic projection of the recess on the substrate.

5. The display panel according to claim 3, characterized in that, the wiring arrangement area further includes: at least one first power supply line, the first power supply line is located on the side of the plurality of touch control transmission lines close to the substrate, the orthographic projection of the first power supply line on the substrate partially overlaps with the orthographic projection of the plurality of touch control transmission lines on the substrate; at least one of the plurality of inorganic grooves extends along the edge of the first power supply line.

6. The display panel according to claim 5, characterized in that, the display panel further includes: a cutting edge on one side of the first power supply line, and at least one of the plurality of inorganic grooves extends along the cutting edge.

7. The display panel according to claim 2, characterized in that, The wire arrangement area includes: a first edge area, a first wire area, a middle area, a second wire area, and a second edge area arranged in sequence along a first direction; the multiple touch transmission lines are located in the first wire area and the second wire area; the wire arrangement area is located on one side of the display area along a second direction, and the first direction intersects with the second direction. The multiple first hollow structures are located in at least one of the first edge area, the middle area, and the second edge area.

8. The display panel according to claim 1, wherein, the first border area includes: a first signal access area and a wire arrangement area located on the side of the first signal access area close to the display area; the wire arrangement area at least includes multiple touch transmission lines, the first signal access area at least includes multiple touch contact pads, and at least one touch transmission line among the multiple touch transmission lines is connected to at least one touch contact pad; the first organic film layer includes, in the wire arrangement area: multiple second hollow structures, and the second inorganic film layer contacts the first inorganic film layer through the multiple second hollow structures; the multiple second hollow structures are located on at least one side of the multiple touch transmission lines.

9. The display panel according to claim 8, wherein, the multiple second hollow structures include at least one of the following: multiple organic holes, multiple organic grooves.

10. The display panel according to claim 8, wherein, the display panel further includes: multiple isolation columns located in the wire arrangement area, and the orthographic projection of the second hollow structure on the substrate covers the orthographic projection of at least one isolation column on the substrate; the isolation columns are located between the second inorganic film layer and the first inorganic film layer.

11. The display panel according to claim 10, wherein, the display structure layer at least includes: a first source-drain metal layer and a second source-drain metal layer sequentially arranged on the substrate, and the isolation columns are located in the second source-drain metal layer.

12. The display panel according to claim 10, wherein, the isolation column includes: a first metal layer, a second metal layer, and a third metal layer arranged in sequence along the direction away from the substrate, the orthographic projection of the third metal layer on the substrate covers the orthographic projections of the second metal layer and the first metal layer on the substrate, and the edge of the third metal layer protrudes from the edges of the second metal layer and the first metal layer.

13. The display panel according to claim 10, wherein, the wire arrangement area further includes: at least one first power supply line, the first power supply line is located on the side of the multiple touch transmission lines close to the substrate, the orthographic projection of the first power supply line on the substrate partially overlaps with the orthographic projection of the multiple touch transmission lines on the substrate; at least one of the multiple isolation columns extends along the edge of the first power supply line.

14. The display panel according to any one of claims 2 to 13, wherein, The first border area further includes: a bent area, the wire routing area is communicated with the bent area and is located on a side of the bent area away from the display area.

15. The display panel according to claim 1, wherein, the display structure layer at least includes: a first source-drain metal layer, a passivation layer, a first planarization layer, a second source-drain metal layer, and a second planarization layer disposed on the substrate; the first inorganic film layer at least includes: the passivation layer; the first organic film layer at least includes: the second planarization layer and the first planarization layer.

16. The display panel according to claim 1, wherein, the touch structure layer at least includes: a touch buffer layer, a first touch conductive layer, a touch interlayer insulating layer, a second touch conductive layer, and a touch protection layer disposed in sequence; the second inorganic film layer includes: the touch buffer layer and the touch interlayer insulating layer; the second organic film layer includes: the touch protection layer.

17. A display device, wherein, it includes the display panel according to any one of claims 1 to 16.

18. A display panel, wherein, it includes: a substrate including a display area and a first border area on one side of the display area, the first border area at least includes: a first inorganic film layer, a first organic film layer, a second inorganic film layer, a second organic film layer, and a plurality of touch transmission lines disposed on the substrate; the first organic film layer is located on a side of the first inorganic film layer away from the substrate, the second inorganic film layer is located on a side of the first organic film layer away from the substrate, and the second organic film layer is located on a side of the second inorganic film layer away from the substrate; the second inorganic film layer includes a plurality of first hollow structures, the second organic film layer contacts the first organic film layer through the plurality of first hollow structures, and the distance between the first hollow structure and the orthographic projection of the touch transmission line on the substrate is greater than 0; or, the first organic film layer includes a plurality of second hollow structures, the second inorganic film layer contacts the first inorganic film layer through the plurality of second hollow structures, and the distance between the second hollow structure and the orthographic projection of the touch transmission line on the substrate is greater than 0.

19. The display panel according to claim 18, wherein, the plurality of first hollow structures includes at least one of the following: a plurality of inorganic holes, a plurality of inorganic grooves.

20. The display panel according to claim 18, wherein, the plurality of second hollow structures includes at least one of the following: a plurality of organic holes, a plurality of organic grooves.

Images