Display panels and electronic devices

Abstract

This application provides a display panel and electronic device, relating to the field of display technology. The display panel includes a substrate, a pixel defining layer, a light-emitting unit, and a touch layer. The pixel defining layer is located on one side of the substrate and has multiple pixel openings. At least a portion of the light-emitting unit is located within the pixel openings. The touch layer is located on the side of the light-emitting unit away from the substrate and includes multiple touch electrodes spaced apart and touch traces located between two touch electrodes. The touch traces are electrically connected to corresponding touch electrodes, and multiple first breaks are present between the touch traces and the touch electrodes. This application eliminates the non-functional traces between the touch electrodes and the touch traces, thereby reducing the number of breaks between adjacent touch electrodes. This makes it less likely for multiple first breaks to produce bright lines on the display panel, thus greatly improving the display effect of the display panel.

Description

Technical Field

[0001] This application relates to the field of display technology, and more specifically, to a display panel and an electronic device. Background Technology

[0002] Organic light-emitting diode (OLED) display technology is considered the most promising next-generation display technology. Compared with liquid crystal display technology, OLED display technology has advantages such as low energy consumption, low cost, self-emissiveness, wide viewing angle, and fast response speed.

[0003] In the traditional OLED display panel manufacturing process, a fine metal mask (FMM) is typically used to pattern the light-emitting pixels. FMM technology is mature and has extensive mass production experience. However, FMM technology also suffers from limitations in precision and high cost. Fine metal mask-less technology eliminates the limitations of traditional OLED processes on display size, resolution, and other screen performance characteristics, offering advantages such as high performance, full-size display, and agile delivery. Patents CN118251982A, CN115666161A, CN116648095A, CN117062489A, CN118678742A, CN118785761A, CN115224220A, CN118678729A, CN118660529A, and CN118660589A describe relevant content regarding fine metal mask-less technology and are provided for reference.

[0004] However, there are still some problems with the display panel that need to be addressed. Summary of the Invention

[0005] To overcome the technical problems mentioned in the background, this application provides a display panel, which includes:

[0006] substrate;

[0007] A pixel defining layer is located on one side of the substrate, and the pixel defining layer has a plurality of pixel openings;

[0008] A light-emitting unit, at least a portion of which is located within the pixel opening;

[0009] A touch layer is located on the side of the light-emitting unit away from the substrate. The touch layer includes a plurality of touch electrodes spaced apart and touch traces located between two of the touch electrodes. The touch traces are electrically connected to the corresponding touch electrodes, and there are a plurality of first breaks between the touch traces and the touch electrodes.

[0010] In some possible implementations, at least a portion of the first breaks are projected onto the substrate by a boundary angle close to the projection of the pixel opening onto the substrate.

[0011] Preferably, the orthographic projection of the touch electrode on the substrate surrounds at least a portion of the orthographic projection of the pixel opening on the substrate;

[0012] Preferably, the orthographic projection of the touch trace on the substrate surrounds the orthographic projection of at least a portion of the pixel opening on the substrate;

[0013] Preferably, the orthographic projection of the touch electrode on the substrate and the orthographic projection of the pixel opening on the substrate are spaced apart;

[0014] Preferably, the orthographic projection of the touch trace on the substrate and the orthographic projection of the pixel opening on the substrate are spaced apart.

[0015] In some possible implementations, the minimum distance between the center of the orthographic projection of the first break on the substrate and the edge of the orthographic projection of the pixel opening on the substrate is greater than or equal to 7 μm and less than or equal to 10 μm.

[0016] In some possible implementations, the first break includes a first cross-section, the touch trace includes the first cross-section, the first cross-section is disposed opposite to the sidewall of the touch electrode facing the first cross-section, the first cross-section is a side surface along the width direction of the touch trace, and the sidewall of the touch electrode is a side surface along the extension direction of the touch electrode.

[0017] In some possible implementations, the first break includes a second cross-section, the touch electrode includes the second cross-section, the second cross-section is disposed opposite to the sidewall of the touch trace facing the second cross-section, the second cross-section is a side surface along the width direction of the touch electrode, and the sidewall of the touch trace is a side surface along the extension direction of the touch trace.

[0018] In some possible implementations, the plurality of first fractures include a first type of first fracture and a second type of first fracture, the first type of first fracture including the first cross-section, or the first type of first fracture including the second cross-section; the second type of first fracture includes a third cross-section and a fourth cross-section, the touch trace includes the third cross-section, the touch electrode includes the fourth cross-section, and the third cross-section and the fourth cross-section are disposed opposite to each other;

[0019] Preferably, the number of first fracture surfaces of the first type is greater than the number of first fracture surfaces of the second type.

[0020] In some possible implementations, the touch traces enclose a semi-enclosed structure, and the touch electrodes extend into the semi-enclosed structure;

[0021] Preferably, the orthographic projection of the semi-enclosed structure on the substrate surrounds the orthographic projection of at least two of the pixel openings on the substrate;

[0022] Preferably, the orthographic projection of the touch electrode extending into the semi-enclosed structure on the substrate is located between the orthographic projections of two adjacent pixel openings on the substrate, and the orthographic projections of the two adjacent pixel openings on the substrate are located within the orthographic projection of the semi-enclosed structure on the substrate.

[0023] In some possible implementations, one pixel opening corresponds to one first cross-section and one second cross-section, or one pixel opening corresponds to two second cross-sections.

[0024] In some possible implementations, the orthographic projections of the touch traces on the substrate and the orthographic projections of the touch electrodes on the substrate are staggered.

[0025] Preferably, the display panel further includes a chip, and the touch traces are electrically connected to the chip.

[0026] In some possible implementations, the touch electrode is configured as a self-capacitive touch electrode;

[0027] Preferably, the touch electrode includes a plurality of second breaks;

[0028] Preferably, the absolute value of the difference between the number of the first fractures and the number of the second fractures per unit area is less than or equal to 5% of the number of the second fractures;

[0029] Preferably, the number of the first fractures per unit area is equal to the number of the second fractures.

[0030] In some possible implementations, the display panel further includes:

[0031] An isolation structure is located between the pixel defining layer and the touch layer. The isolation structure encloses and forms a plurality of isolation openings, which are connected to the corresponding pixel openings. At least a portion of the light-emitting unit is located within the isolation opening.

[0032] Preferably, the orthographic projection of the touch electrode on the substrate surrounds at least a portion of the orthographic projection of the isolation opening on the substrate;

[0033] Preferably, the orthographic projection of the touch trace on the substrate surrounds at least a portion of the orthographic projection of the isolation opening on the substrate;

[0034] Preferably, the orthographic projection of the touch electrode on the substrate and the orthographic projection of the isolation opening on the substrate are spaced apart;

[0035] Preferably, the orthographic projection of the touch trace on the substrate and the orthographic projection of the isolation opening on the substrate are spaced apart.

[0036] In some possible implementations, the display panel further includes:

[0037] Multiple encapsulation units are located between the light-emitting unit and the touch layer, and a portion of the encapsulation unit extends from the side of the isolation structure toward the isolation opening to the side of the isolation structure away from the substrate;

[0038] Preferably, the multiple encapsulation units corresponding to the multiple light-emitting units are arranged at intervals;

[0039] Preferably, there is a gap between the packaging unit located on the side of the isolation structure away from the substrate and the side of the isolation structure away from the substrate.

[0040] In some possible implementations, the display panel further includes a second encapsulation layer located on the side of the encapsulation unit away from the substrate and a third encapsulation layer located on the side of the second encapsulation layer away from the substrate, and the touch layer is located on the side of the third encapsulation layer away from the substrate;

[0041] Preferably, the materials of both the packaging unit and the third packaging layer include inorganic materials;

[0042] Preferably, the material of the second encapsulation layer includes an organic material.

[0043] In some possible implementations, the isolation structure includes a first isolation portion and a second isolation portion stacked sequentially along a direction away from the substrate. The orthographic projection of the side of the first isolation portion away from the substrate onto the substrate is located within the orthographic projection of the second isolation portion onto the substrate. The orthographic projection area of ​​the side of the first isolation portion away from the substrate onto the substrate is smaller than the orthographic projection area of ​​the second isolation portion onto the substrate. The second electrode of the light-emitting unit is electrically connected to the first isolation portion.

[0044] Preferably, the isolation structure further includes a third isolation portion located on the side of the first isolation portion facing the substrate, and the second electrode of the light-emitting unit is electrically connected to the third isolation portion;

[0045] Preferably, the material of the third isolation part includes molybdenum or titanium; and / or, the material of the first isolation part includes aluminum, silver or copper; and / or, the material of the second isolation part includes titanium or molybdenum.

[0046] In some possible implementations, this application also provides an electronic device, which includes the display panel described in this application.

[0047] Compared with the prior art, this application has the following beneficial effects:

[0048] The present application provides a display panel and electronic device that, by setting multiple first breaks between the touch traces and the touch electrodes, can eliminate non-functional traces between the touch electrodes and the touch traces, thereby reducing the number of breaks between two adjacent touch electrodes. This makes it less likely that multiple first breaks will produce bright lines on the display panel, and thus greatly improves the display effect of the display panel. Attached Figure Description

[0049] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0050] Figure 1 A partial top view of the display panel provided in an embodiment of this application;

[0051] Figure 2 Provided for the embodiments of this application Figure 1 Enlarged view of point A in the middle;

[0052] Figure 3 Provided for the embodiments of this application Figure 2 Schematic diagram of the cross section at point AA;

[0053] Figure 4 A schematic cross-sectional view of the substrate provided in an embodiment of this application;

[0054] Figure 5 This is a schematic diagram of the pixel circuit provided in an embodiment of this application;

[0055] Figure 6 Provided for the embodiments of this application Figure 2 Enlarged view of point B in the middle;

[0056] Figure 7a Provided for the embodiments of this application Figure 2 Enlarged view of point C in the middle;

[0057] Figure 7b Provided for the embodiments of this application Figure 2 Enlarged view of point D in the middle;

[0058] Figure 8 A cross-sectional schematic diagram of the display panel including the isolation structure provided in the embodiments of this application;

[0059] Figure 9 A cross-sectional schematic diagram of the light-emitting functional part provided in an embodiment of this application;

[0060] Figure 10 A cross-sectional schematic diagram of the display panel provided in the embodiments of this application, including a second encapsulation layer and a third encapsulation layer;

[0061] Figure 11 A schematic flowchart illustrating a method for manufacturing a display panel according to an embodiment of this application;

[0062] Figure 12 This is a three-dimensional structural diagram of the electronic device provided in an embodiment of this application.

[0063] Reference numerals: 01, display panel; 100, electronic device; 1, touch electrode; 101, second cross-section; 102, fourth cross-section; 2, touch trace; 21, first cross-section; 22, third cross-section; 3, first break; 4, substrate; 5, first electrode; 6, light-emitting functional part; 7, second electrode; 8, light-emitting unit; 9, pixel defining layer; 91, pixel opening; 10, touch layer; 11, isolation structure; 111, first isolation part; 112, second isolation part; 113, third isolation part; 12, packaging unit; 13, second packaging layer; 14, third packaging layer; 15, second break; 16, planarization layer; 17, pixel circuit. Detailed Implementation

[0064] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0065] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0066] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. It should be noted that, unless otherwise specified, different features in the embodiments of this application can be combined with each other.

[0067] Furthermore, when using terms such as "above," "above," "below," "below," and "relative" to define the positional relationship between two elements, this includes not only the state where the two elements are directly connected, but also the state where the two elements are separated by gaps or other elements. In addition, the terms "first," "second," and "third," etc., are only used for distinguishing descriptions and should not be interpreted as indicating or implying relative importance.

[0068] It should be noted that, where there is no conflict, different features in the embodiments of this application can be combined with each other.

[0069] Increasing the density of light-emitting units (i.e., pixel density) in a display panel is a crucial way to improve display quality. However, current display panels manufactured using Fine Metal Mask (FMM) technology are limited by technological constraints that prevent further increases in light-emitting unit density. Through long-term research, the inventors discovered that to address this technical challenge, some display panels incorporate isolation structures. During the full-layer deposition of the light-emitting layer and the second electrode, the light-emitting layer and the second electrode can be disconnected at the isolation structure. By employing multiple deposition and etching processes (i.e., light-emitting unit patterning), light-emitting units of different colors can be formed within different isolation openings.

[0070] The display panel in the related technology includes a substrate, a light-emitting unit located on one side of the substrate, and a touch layer located on the side of the light-emitting unit away from the substrate. The touch layer includes a plurality of touch electrodes spaced apart, non-functional traces located between two adjacent touch electrodes, and touch traces located between two adjacent non-functional traces. The touch traces are electrically connected to the corresponding touch electrodes. In order to insulate adjacent touch traces from non-functional traces, there is a break between adjacent touch traces from non-functional traces. In order to insulate adjacent touch electrodes from non-functional traces, a break is also provided between adjacent touch electrodes from non-functional traces.

[0071] Thus, the breaks between two adjacent touch electrodes include breaks between adjacent touch electrodes and non-functional traces, as well as breaks between adjacent touch traces and non-functional traces. Therefore, there are many breaks between two adjacent touch electrodes. When the light emitted by the light-emitting unit shines on the cross-section of the break, the cross-section of the break will reflect light, so that bright lines formed by the breaks between two adjacent touch electrodes can be seen on the display panel, which in turn affects the display effect of the display panel.

[0072] To address the aforementioned technical problems, the following innovative technical solutions are designed. The specific implementation schemes of this application will be described in detail below with reference to the accompanying drawings. It should be noted that the deficiencies in the existing solutions are the result of practical experience and careful research. Therefore, the discovery process of the aforementioned technical problems and the solutions proposed in this embodiment below should be considered contributions made to this application during the invention process, and should not be construed as technical content known to those skilled in the art.

[0073] Please see Figures 1-3 This embodiment provides a display panel, which includes a substrate 4, a pixel defining layer 9, a light-emitting unit 8, and a touch layer 10.

[0074] The display panel can be an organic light-emitting diode (OLED) display panel or a quantum dot light-emitting diode (QLED) display panel.

[0075] Please see Figure 4 The substrate 4 includes a pixel circuit layer 17 and a planarization layer 16. The pixel circuit layer 17 includes pixel circuits 17 for driving the light-emitting unit 8 to emit light. Figure 4 The transistors in the pixel circuit 17 are shown. A via is provided in the planarization layer 16, and the first electrode 5 of the light-emitting unit 8 is electrically connected to the transistors in the pixel circuit 17 layer through the via. Furthermore, the pixel circuit 17 layer also includes at least one insulating layer, which may include at least one of inorganic and organic layers. Additionally, the substrate 4 also includes scan lines providing the scan signal Scan and data lines providing the data signal Data to the pixel circuit 17.

[0076] Please see Figure 5The pixel circuit 17 includes a driving transistor T1 and a data transistor T2. The first terminal of the data transistor T2 is connected to the data line that provides the data signal Data, the gate of the data transistor T2 is connected to the scan line that provides the scan signal Scan, and the second terminal of the data transistor T2 is connected to the gate of the driving transistor T1. The two ends of the storage capacitor C1 are respectively connected to the gate and the first terminal of the driving transistor T1, and the second terminal of the driving transistor T1 is connected to the light-emitting unit 8. Figure 5 This is one embodiment of pixel circuit 17, but pixel circuit 17 in this application is not limited to... Figure 5 The pixel circuit 17 shown as 2T1C can also be other pixel circuits 17, such as 7T1C, 8T1C pixel circuits 17, etc.

[0077] The pixel defining layer 9 is located on one side of the substrate 4, and the pixel defining layer 9 has a plurality of pixel openings 91.

[0078] At least a portion of the light-emitting unit 8 is located within the pixel opening 91.

[0079] The touch layer 10 is located on the side of the light-emitting unit 8 away from the substrate 4. The touch layer 10 includes a plurality of touch electrodes 1 spaced apart and touch traces 2 located between two touch electrodes 1. The touch traces 2 are electrically connected to the corresponding touch electrodes 1. There are a plurality of first breaks 3 between the touch traces 2 and the touch electrodes 1.

[0080] In related technologies, there are non-functional traces between the touch trace 2 and the touch electrode 1, therefore, there are a large number of breaks between adjacent touch traces 2.

[0081] In this embodiment, without affecting the insulation of adjacent touch electrodes 1, the non-functional traces between touch trace 2 and touch electrode 1 are eliminated. Thus, the break between two adjacent touch electrodes 1 only includes the first break 3 between adjacent touch electrode 1 and touch trace 2, which at least reduces the number of breaks between touch trace 2 and non-functional traces in related technologies, thereby greatly reducing the number of breaks between two adjacent touch electrodes 1.

[0082] Because the number of breaks between two adjacent touch electrodes 1 is reduced, when the light-emitting unit 8 emits light, it is not easy to see multiple first breaks 3 producing bright lines on the display panel, thereby greatly improving the display effect of the display panel.

[0083] Based on the above design, in this embodiment, by setting multiple first breaks 3 between the touch trace 2 and the touch electrode 1, the non-functional traces between the touch electrode 1 and the touch trace 2 can be eliminated, thereby reducing the number of breaks between two adjacent touch electrodes 1. It is not easy to see multiple first breaks 3 producing bright lines on the display panel, which can greatly improve the display effect of the display panel.

[0084] In some possible implementations, the display panel further includes a chip, and the touch trace 2 is electrically connected to the chip. One end of the touch trace 2 is electrically connected to the chip, and the other end is electrically connected to the corresponding touch electrode 1. In this way, the electrical signals of the chip can be transmitted to the corresponding touch electrode 1 through the touch trace 2.

[0085] Optionally, the touch electrode 1 is configured as a self-capacitive touch electrode 1. The touch electrode 1 can receive touch signals and also send touch signals.

[0086] For some possible implementations, please refer to Figure 2 and Figure 6 At least a portion of the first fractures 3 of the plurality of first fractures 3 have their orthogonal projections on the substrate 4 close to the boundary angle of the orthogonal projection of the pixel opening 91 on the substrate 4.

[0087] In the related technology, the break is located at the edge of the pixel opening 91. Thus, the distance between the break and the pixel opening 91 is relatively close. When the light emitted by the light-emitting unit 8 shines on the cross surface of the break, it is easy to reflect light, making it easier to see the bright lines generated by multiple breaks.

[0088] In this embodiment, the first break 3 is set at the boundary corner of the pixel opening 91. For example, when the orthographic projection of the pixel opening 91 on the substrate 4 is a rectangle, the first break 3 is set at any one of the four corners of the rectangle. In this way, the distance between the first break 3 and the pixel opening 91 can be increased. When the light emitted by the light-emitting unit 8 shines on the cross-section of the first break 3, the cross-section of the first break 3 is less likely to reflect light, or the light reflected by the first break 3 is weaker. Therefore, it is less likely to see bright lines generated by multiple first breaks 3 on the display panel, thereby further improving the display effect of the display panel.

[0089] Optionally, the orthographic projection of the touch electrode 1 on the substrate 4 surrounds the orthographic projection of at least a portion of the pixel opening 91 on the substrate 4.

[0090] Optionally, the orthographic projection of the touch trace 2 on the substrate 4 surrounds at least a portion of the orthographic projection of the pixel opening 91 on the substrate 4.

[0091] Optionally, the orthographic projection of the touch electrode 1 on the substrate 4 and the orthographic projection of the pixel opening 91 on the substrate 4 are spaced apart.

[0092] Optionally, the orthographic projection of the touch trace 2 on the substrate 4 and the orthographic projection of the pixel opening 91 on the substrate 4 are spaced apart.

[0093] In this way, the touch electrode 1 and the touch trace 2 are less likely to block the light emitted by the light-emitting unit 8, thus not affecting the display effect of the display panel.

[0094] In some possible implementations, please refer again. Figure 2 and Figure 6 The minimum distance D between the center of the orthographic projection of the first break 3 on the substrate 4 and the edge of the orthographic projection of the pixel opening 91 on the substrate 4 is greater than or equal to 7μm and less than or equal to 10μm. For example, the minimum distance D can be 7μm, 8μm, 9μm or 10μm, etc. By reasonably setting the minimum distance D, it is less likely to see bright lines generated by multiple first breaks 3 on the display panel.

[0095] For some possible implementations, please refer to Figure 2 and Figure 7a The first break 3 includes a first cross-section 21, the touch trace 2 includes a first cross-section 21, the first cross-section 21 is disposed opposite to the side wall of the touch electrode 1 facing the first cross-section 21, the first cross-section 21 is a side surface along the width direction of the touch trace 2, and the side wall of the touch electrode 1 is a side surface along the extension direction of the touch electrode 1.

[0096] The fracture in the related technology includes two cross-sections arranged opposite each other. Both cross-sections of the fracture can reflect the light emitted by the light-emitting unit 8. Therefore, the light reflected by the light-emitting unit 8 from the fracture in the related technology is stronger, making it easier to see the bright lines generated by multiple fractures on the display panel.

[0097] In this embodiment, at least a portion of the multiple first breaks 3 include a first cross-section 21 located on the touch trace 2. The first cross-section 21 corresponds to the sidewall of the touch electrode 1. The sidewall of the touch electrode 1 is not easily reflective or has low reflectivity, and the light emitted by the light-emitting unit 8 is mainly reflected through the first cross-section 21. Thus, compared to related technologies, this embodiment reduces one reflective cross-section, thereby reducing the amount of light reflected by the first break 3 and making it less likely for bright lines formed by multiple first breaks 3 to be seen in the display panel.

[0098] In some possible implementations, please refer again. Figure 2 and Figure 7a The first break 3 includes a second cross section 101. The touch electrode 1 includes a second cross section 101. The second cross section 101 and the touch trace 2 are disposed opposite to the side wall of the second cross section 101. The second cross section 101 is a side side along the width direction of the touch electrode 1. The side wall of the touch trace 2 is a side side along the extension direction of the touch trace 2.

[0099] Similarly, in this embodiment, at least a portion of the multiple first breaks 3 include a second cross-section 101 located on the touch electrode 1. The second cross-section 101 corresponds to the sidewall of the touch trace 2. The sidewall of the touch trace 2 is not easily reflective or has low reflectivity, and the light emitted by the light-emitting unit 8 is mainly reflected through the second cross-section 101. Thus, compared with related technologies, this embodiment reduces one reflective cross-section, thereby reducing the amount of light reflected by the second break 15 and making it less likely for bright lines formed by multiple first breaks 3 to be seen in the display panel.

[0100] It is worth noting that the touch trace 2 includes a first surface close to the substrate 4, a second surface away from the substrate 4, and a side surface connecting the first surface and the second surface. The first cross-section 21 is a side surface along the width direction of the touch trace 2 and opposite to the touch electrode 1, and the sidewall of the touch trace 2 is a side surface along the extension direction of the touch trace 2.

[0101] The touch electrode 1 includes a third surface near the substrate 4, a fourth surface away from the substrate 4, and a side surface connecting the third surface and the fourth surface. The second cross-section 101 is a side surface along the width direction of the touch electrode 1 and opposite to the touch trace 2. The sidewall of the touch electrode 1 is a side surface along the extension direction of the touch electrode 1.

[0102] For some possible implementations, please refer to Figure 2 , Figure 7a and Figure 7b Multiple first fractures 3 include a first type of first fracture and a second type of first fracture. The first type of first fracture includes the first cross-section 21, or the first type of first fracture includes the second cross-section 101. The second type of first fracture includes a third cross-section 22 and a fourth cross-section 102. The touch trace 2 includes the third cross-section 22, and the touch electrode 1 includes the fourth cross-section 102. The third cross-section 22 and the fourth cross-section 102 are arranged opposite to each other.

[0103] Optionally, the number of first-type first fractures is greater than the number of second-type first fractures.

[0104] If the two cross-sections of the first fracture 3 are set opposite each other, the reflection of the first fracture 3 will be more concentrated, and the bright line formed by the first fracture 3 will be easier to see in the display panel.

[0105] In this embodiment, the number of first fractures of the first type is greater than the number of first fractures of the second type. That is, the number of first fractures 3 with two cross-sections facing each other is less than the number of first fractures 3 with cross-sections staggered. This can disperse the first cross-section 21 and the second cross-section 101, thereby dispersing the reflection of the first fracture 3, and making it less likely to see the bright line formed by the first fracture 3 in the display panel.

[0106] Optionally, the first section 21 is perpendicular to a portion of the second section 101. In this way, the first section 21 and the second section 101 can be further dispersed.

[0107] In some possible implementations, please refer again. Figure 2 and Figure 7a The touch traces 2 form a semi-enclosed structure, and the touch electrode 1 extends into the semi-enclosed structure.

[0108] The orthographic projection of a portion of the touch electrode 1 on the substrate 4 is located between the orthographic projections of two oppositely arranged first sections 21 on the substrate 4.

[0109] The two first cross-sections 21 are separated by the touch electrode 1. The touch electrode 1 extends into the semi-enclosed structure formed by the touch trace 2. The second cross-section 101 on the touch electrode 1 extends to be opposite to the touch trace 2. In this way, the first cross-section 21 and the second cross-section 101 can be dispersed, thereby further dispersing the light reflected from the first cross-section 3.

[0110] Optionally, the orthographic projection of the semi-enclosed structure formed by the touch traces 2 onto the substrate 4 surrounds the orthographic projection of at least two pixel openings 91 onto the substrate 4. This further reduces the number of first breaks between adjacent touch traces 2 and touch electrodes 1.

[0111] Optionally, the orthographic projection of the touch electrode 1 extending into the semi-enclosed structure onto the substrate 4 is located between the orthographic projections of two adjacent pixel openings 91 onto the substrate 4, and the orthographic projections of the two adjacent pixel openings 91 onto the substrate 4 are located within the orthographic projection of the semi-enclosed structure onto the substrate 4. In this way, the touch electrode 1 extending into the semi-enclosed structure is less likely to block the light emitted by the light-emitting unit 8, thereby not affecting the display effect of the display panel.

[0112] In some possible implementations, please refer again. Figure 2 and Figure 7a One pixel opening 91 corresponds to one first section 21 and one second section 101, or one pixel opening 91 corresponds to two second sections 101.

[0113] In the related technology, one pixel opening 91 corresponds to two breaks, and each break includes two cross-sections arranged opposite to each other. Therefore, one pixel opening 91 corresponds to four cross-sections. In this way, the light generated by one light-emitting unit 8 is reflected by four cross-sections, so that the bright lines generated by multiple breaks can be more easily seen in the display panel.

[0114] In this embodiment, one pixel opening 91 corresponds to one first cross-section 21 and one second cross-section 101, or one pixel opening 91 corresponds to two second cross-sections 101. Thus, one light-emitting unit 8 corresponds to two cross-sections, which reduces the number of cross-sections corresponding to one light-emitting unit 8. This reduces the light reflected from the cross-sections corresponding to one light-emitting unit 8, thereby further improving the problem of forming bright lines in the display panel.

[0115] Optionally, a first section 21 and a second section 101 corresponding to a pixel opening 91 are perpendicular to each other.

[0116] Optionally, one pixel opening 91 corresponds to two second sections 101 that are perpendicular to each other.

[0117] In this way, a light-emitting unit 8 not only corresponds to two cross-sections, but the two cross-sections are also perpendicular to each other. This not only reduces the light reflected from the cross-sections, but also disperses the light reflected from the cross-sections, making it less likely to see the bright lines formed by the cross-sections in the display panel.

[0118] In some possible implementations, please refer again. Figure 2 The orthographic projections of the touch trace 2 on the substrate 4 and the touch electrode 1 on the substrate 4 are staggered. In this way, the first break 3 between the touch trace 2 and the touch electrode 1 is more dispersed, and the bright line formed by the break is less likely to be seen in the display panel.

[0119] In some possible implementations, please refer again. Figure 2 The touch electrode 1 includes multiple second breaks 15.

[0120] Optionally, the ratio of the absolute value of the difference between the number of first fractures 3 and the number of second fractures 15 per unit area to the number of second fractures 15 is less than or equal to 5%. For example, this ratio can be 5%, 4%, 3%, 2%, 1%, or 0, etc.

[0121] In this way, the difference in the number of the first fracture 3 and the second fracture 15 can be reduced, thereby reducing the difference in the reflected light from the first fracture 3 and the second fracture 15, and thus improving the display uniformity of the display panel.

[0122] Optionally, the number of first fractures 3 per unit area is equal to the number of second fractures 15. This can further improve the display uniformity of the display panel.

[0123] For some possible implementations, please refer to Figure 8The display panel also includes an isolation structure 11, which is located between the pixel defining layer 9 and the touch layer 10. The isolation structure 11 encloses and forms a plurality of isolation openings, which are connected to the corresponding pixel openings 91. At least a portion of the light-emitting unit 8 is located within the isolation openings. The light-emitting unit 8 includes a first electrode 5, a light-emitting functional part 6, and a second electrode 7, which are sequentially stacked along a direction away from the substrate 4.

[0124] Optionally, the isolation structure 11 can also enclose and form multiple light-transmitting openings. These multiple light-transmitting openings can be set in the entire display area of ​​the display panel or only in the light-transmitting area of ​​the display panel. This can improve the overall transmittance of the display panel and enable the related functions of the under-screen photosensitive device, such as the camera function.

[0125] The isolation structure 11 allows the display panel to form film layers of different colors of light-emitting units 8 in different isolation openings without the need for a fine mask. When forming the light-emitting material layer, the isolation structure 11 separates the light-emitting material layer into multiple spaced-apart light-emitting functional parts 6. When forming the second electrode material layer, the isolation structure 11 separates the second electrode material layer into multiple spaced-apart second electrodes 7. The isolation structure 11 includes a conductive material, and the second electrodes 7 are electrically connected to the isolation structure 11. One first electrode 5, one light-emitting functional part 6, and one second electrode 7 form one light-emitting unit 8. The first electrode 5 can be an anode, and the second electrode 7 can be a cathode.

[0126] In this way, different light-emitting units 8 can be made independent of each other, thereby reducing crosstalk between adjacent light-emitting units 8 and improving the display effect of the display panel. At the same time, due to the presence of the isolation structure 11, the light-emitting material layer and the second electrode material layer in each color light-emitting unit 8 of the display panel can be prepared as a whole before patterning, thereby eliminating the need for a fine mask and saving the manufacturing cost of the display panel.

[0127] Specifically, the isolation opening includes a first isolation opening, a second isolation opening, and a third isolation opening, and the light-emitting unit 8 includes a first light-emitting unit, a second light-emitting unit, and a third light-emitting unit with different light-emitting colors. At least a portion of the first light-emitting unit is located in the first isolation opening, at least a portion of the second light-emitting unit is located in the second isolation opening, and at least a portion of the third light-emitting unit is located in the third isolation opening.

[0128] The pixel defining layer 9 is provided with a first pixel opening communicating with a first isolation opening, a second pixel opening communicating with a second isolation opening, and a third pixel opening communicating with a third isolation opening. The areas of the orthographic projections of the first pixel opening, the second pixel opening, and the third pixel opening on the substrate 4 may be the same or different. The shapes of the orthographic projections of the pixel opening 91 and the corresponding isolation opening on the substrate 4 may be the same or different.

[0129] Generally, the area of ​​the orthographic projection of the isolation opening on the substrate 4 is larger than the area of ​​the orthographic projection of the pixel opening 91 connected to the isolation opening on the substrate 4, and the orthographic projection of the pixel opening 91 of the light-emitting unit 8 on the substrate 4 overlaps with the orthographic projection of the isolation opening on the substrate 4. The pixel defining layer 9 is made of an inorganic material, such as an inorganic insulating material made of at least one of silicon nitride (SiNx), silicon oxide (SiOx), and silicon oxynitride (SiON).

[0130] In another embodiment, the isolation structure 11 is disposed in the groove of the pixel defining layer 9; or the pixel defining layer 9 may not be disposed in the display panel, and the isolation structure 11 is disposed on one side of the substrate 4, and the isolation structure 11 is in contact with one side of the substrate 4.

[0131] The first, second, and third light-emitting units emit light of different colors. Each of the three units includes a first electrode 5, a light-emitting functional part 6, and a second electrode 7 stacked together. The first electrode 5 is disposed on the substrate 4, and a pixel defining layer 9 covers the end of the first electrode 5. A pixel opening 91 is provided on the pixel defining layer 9, through which the first electrode 5 is exposed. The light-emitting functional parts 6 of the first, second, and third light-emitting units cover the sidewall of the pixel opening 91 of the pixel defining layer 9 and the side of the pixel defining layer 9 facing away from the substrate 4. Each light-emitting functional part 6 is located within the pixel opening 91 and is in contact with the first electrode 5.

[0132] The second electrodes 7 of the first light-emitting unit, the second light-emitting unit, and the third light-emitting unit respectively cover the corresponding light-emitting functional parts 6, and the second electrodes 7 are electrically connected to the isolation structure 11.

[0133] The first electrode 5 of each light-emitting unit 8 can be connected to the pixel circuit 17 through a via, so that the pixel circuit 17 drives the corresponding light-emitting unit 8 to emit light.

[0134] The first electrode 5 may include a multilayer structure, such as a reflective layer and a pair of conductive oxide layers covering the upper and lower surfaces of the reflective layer, respectively. The reflective layer may be formed using a metallic material with excellent light reflectivity, such as silver. The conductive oxide layers may be formed using transparent conductive oxides such as ITO (Indium Tin Oxide), IZO (Indium Zinc Oxide), or IGZO (Indium Gallium Zinc Oxide). The second electrode 7 may be formed using a metallic material such as an alloy of magnesium and silver (MgAg).

[0135] Figure 9 This is a schematic diagram of a light-emitting functional unit 6 according to one embodiment of this application. The light-emitting functional unit 6 of at least one of the first, second, and third light-emitting units 8 includes a hole injection layer HIL, a hole transport layer HTL, an electron blocking layer EBL, a light-emitting material layer EML, a hole blocking layer HBL, an electron transport layer ETL, and an electron injection layer EIL, stacked along a direction away from the substrate 4. The light-emitting functional unit 6 may include one light-emitting material layer EML, or a stacked light-emitting functional unit 6 including multiple light-emitting material layers EML.

[0136] In order for the light-emitting functional unit 6 to emit light, a pixel voltage is provided to the first electrode 5 and a common voltage is provided to the second electrode 7, forming a potential difference between the first electrode 5 and the second electrode 7, causing the light-emitting functional unit 6 disposed between the first electrode 5 and the second electrode 7 to emit light. In one embodiment, if a potential difference is formed between the first electrode 5 and the second electrode 7 of the first light-emitting unit, the light-emitting material layer EML of the light-emitting functional unit 6 emits blue light; if a potential difference is formed between the first electrode 5 and the second electrode 7 of the second light-emitting unit, the light-emitting material layer EML of the light-emitting functional unit 6 emits green light; and if a potential difference is formed between the first electrode 5 and the second electrode 7 of the third light-emitting unit, the light-emitting material layer EML of the light-emitting functional unit 6 emits red light.

[0137] In this configuration, the pixel voltage of the first electrode 5 is provided by the pixel circuit 17, and the common voltage of the second electrode 7 is provided by the isolation structure 11. Specifically, the second electrode 7 is electrically connected to the isolation structure 11, and by providing a common voltage to the isolation structure 11, the common voltage is supplied to the second electrode 7. That is, the isolation structure 11 has the function of supplying a common voltage to the second electrode 7.

[0138] Optionally, the orthographic projection of the touch electrode 1 on the substrate 4 surrounds the orthographic projection of at least partially isolating the opening on the substrate 4.

[0139] Optionally, the orthographic projection of the touch trace 2 on the substrate 4 surrounds at least partially the orthographic projection of the isolation opening on the substrate 4.

[0140] Optionally, the orthographic projection of the touch electrode 1 on the substrate 4 and the orthographic projection of the isolation opening on the substrate 4 are spaced apart.

[0141] Optionally, the orthographic projection of the touch trace 2 on the substrate 4 and the orthographic projection of the isolation opening on the substrate 4 are spaced apart.

[0142] In this way, the touch electrode 1 and the touch trace 2 are less likely to block the light emitted by the light-emitting unit 8, thus not affecting the display effect of the display panel.

[0143] In some possible implementations, the display panel further includes a plurality of encapsulation units 12 located between the light-emitting unit 8 and the touch layer 10, with portions of the encapsulation units 12 extending from the side of the isolation structure 11 toward the isolation opening to the side of the isolation structure 11 away from the substrate 4.

[0144] Optionally, the multiple light-emitting units 8 are spaced apart from each other and corresponding to the multiple encapsulation units 12.

[0145] Optionally, there is a gap between the packaging unit 12 located on the side of the isolation structure 11 away from the substrate 4 and the side of the isolation structure 11 away from the substrate 4.

[0146] During the patterning process of the light-emitting unit 8, the first encapsulation material layer is broken at the isolation structure 11 to form an encapsulation unit 12. The encapsulation unit 12 can completely and independently encapsulate the corresponding light-emitting unit 8, thereby improving the display characteristics of the display panel.

[0147] For some possible implementations, please refer to Figure 10 The display panel also includes a second encapsulation layer 13 located on the side of the encapsulation unit 12 away from the substrate 4 and a third encapsulation layer 14 located on the side of the second encapsulation layer 13 away from the substrate 4, and the touch layer 10 is located on the side of the third encapsulation layer 14 away from the substrate 4.

[0148] Optionally, the materials of both the packaging unit 12 and the third packaging layer 14 include inorganic materials;

[0149] Optionally, the material of the second encapsulation layer 13 may include organic materials.

[0150] For example, the encapsulation unit 12 and the third encapsulation layer 14 can be formed by chemical vapor deposition (CVD), and the second encapsulation layer 13 can be formed by inkjet printing (IJP). The second encapsulation layer 13 and the third encapsulation layer 14 can achieve a better encapsulation effect on the light-emitting unit 8, thereby further improving the encapsulation quality of the display panel.

[0151] Specifically, the materials of the encapsulation unit 12 and the third encapsulation layer 14 include at least one of silicon nitride (SiN), silicon oxide (SiO), and silicon oxynitride (SiON). The second encapsulation layer 13 is an organic insulating material, such as epoxy resin, acrylic resin, or other resin materials.

[0152] In some possible implementations, please refer again. Figure 8The isolation structure 11 includes a first isolation portion 111 and a second isolation portion 112 stacked sequentially along the direction away from the substrate 4. The orthographic projection of the side of the first isolation portion 111 away from the substrate 4 on the substrate 4 is located within the orthographic projection of the second isolation portion 112 on the substrate 4. The orthographic projection area of ​​the side of the first isolation portion 111 away from the substrate 4 on the substrate 4 is smaller than the orthographic projection area of ​​the second isolation portion 112 on the substrate 4. The second electrode 7 of the light-emitting unit 8 is electrically connected to the first isolation portion 111.

[0153] Since the second isolation portion 112 is located on the side of the first isolation portion 111 away from the substrate 4, and the lateral width of the second isolation portion 112 is greater than the lateral width of the first isolation portion 111, and the two ends of the second isolation portion 112 protrude compared to the side of the first isolation portion 111, the shape of this isolation structure 11 is also called a hanging shape. Therefore, when forming the light-emitting material layer, the light-emitting material layer is separated by the second isolation portion 112 to form a plurality of spaced light-emitting functional portions 6. When forming the second electrode material layer, the second electrode material layer is separated by the second isolation portion 112 to form a plurality of spaced second electrodes 7.

[0154] The first isolation portion 111 includes a conductive material, and the second electrode 7 corresponding to the light-emitting unit 8 extends to contact the side wall of the first isolation portion 111 so as to realize the electrical connection between the second electrode 7 corresponding to the light-emitting unit 8 and the first isolation portion 111.

[0155] Preferably, please see again. Figure 10 The isolation structure 11 also includes a third isolation portion 113 located on the side of the first isolation portion 111 facing the substrate 4, and the second electrode 7 of the light-emitting unit 8 is electrically connected to the third isolation portion 113.

[0156] Optionally, the material of the third isolation portion 113 includes molybdenum or titanium; and / or, the material of the first isolation portion 111 includes aluminum, silver or copper; and / or, the material of the second isolation portion 112 includes titanium or molybdenum.

[0157] The third isolation section 113 includes a conductive material, and the second electrode 7 corresponding to the light-emitting unit 8 extends to contact the side wall of the third isolation section 113 so as to realize the electrical connection between the second electrode 7 corresponding to the light-emitting unit 8 and the third isolation section 113.

[0158] In summary, this application eliminates the non-functional traces between the touch electrode 1 and the touch trace 2, places the first break 3 at the chamfer of the pixel opening 91, reduces the number of cross-sections of the first break 3, reduces the number of cross-sections corresponding to one light-emitting unit 8, disperses the cross-sections of the first break 3, and increases the distance between the cross-section of the first break 3 and the pixel opening 91. As a result, it is not easy to see multiple first breaks 3 producing bright lines on the display panel, thereby greatly improving the display effect of the display panel.

[0159] For some possible implementations, please refer to Figure 8 and Figure 11 This application also provides a method for manufacturing a display panel, the method comprising:

[0160] S10: Provides substrate 4.

[0161] S11: A pixel defining layer 9 is formed on one side of the substrate 4. The pixel defining layer 9 has a plurality of pixel openings 91.

[0162] S12: Form a light-emitting unit 8, at least a portion of which is located within a pixel opening 91.

[0163] S13: A touch layer 10 is formed on the side of the light-emitting unit 8 away from the substrate 4. The touch layer 10 includes a plurality of touch electrodes 1 spaced apart and touch traces 2 located between at least some of two adjacent touch electrodes 1. The touch traces 2 are electrically connected to the corresponding touch electrodes 1. There are a plurality of first breaks 3 between the touch traces 2 and the touch electrodes 1.

[0164] In the display panel formed by the above method, without affecting the insulation of adjacent touch electrodes 1, the non-functional traces between touch traces 2 and touch electrodes 1 are eliminated. Thus, the break between two adjacent touch electrodes 1 only includes the first break 3 between adjacent touch electrodes 1 and touch traces 2, which at least reduces the number of breaks between touch traces 2 and non-functional traces in related technologies, thereby greatly reducing the number of breaks between two adjacent touch electrodes 1.

[0165] Because the number of breaks between two adjacent touch electrodes 1 is reduced, when the light-emitting unit 8 emits light, it is not easy to see multiple first breaks 3 producing bright lines on the display panel, thereby greatly improving the display effect of the display panel.

[0166] One end of the touch trace 2 is electrically connected to the chip, and the other end is electrically connected to the corresponding touch electrode 1. In this way, the electrical signals of the chip can be transmitted to the corresponding touch electrode 1 through the touch trace 2. The touch electrode 1 is configured as a self-capacitive touch electrode 1. The touch electrode 1 can receive touch signals and also send touch signals.

[0167] In some possible implementations, the step of forming a pixel defining layer 9 on one side of the substrate 4 includes:

[0168] A pixel defining layer 9 is formed on one side of the substrate 4, and an isolation structure 11 is formed on the side of the pixel defining layer 9 away from the substrate 4.

[0169] Specifically, a first electrode 5 is formed on one side of the substrate 4, and a pixel defining material layer and an isolation material layer are formed sequentially on the side of the first electrode 5 away from the substrate 4. The isolation material layer and the pixel defining material layer are patterned sequentially to form an isolation structure 11 and a pixel defining layer 9, respectively. The isolation structure 11 encloses and forms a plurality of isolation openings, which are connected to the corresponding pixel openings 91. The pixel defining layer 9 is provided with pixel openings 91 that expose a portion of the first electrode 5, and the pixel openings 91 are connected to the isolation openings.

[0170] In some possible implementations, the isolation opening includes a first isolation opening and a second isolation opening, and the step of forming the light-emitting unit 8 includes:

[0171] On the side of the isolation structure 11 away from the substrate 4, a light-emitting material layer of the first light-emitting unit, a second electrode material layer, and a first encapsulation material layer are formed sequentially.

[0172] The light-emitting material layer is broken at the isolation structure 11, so that at least part of the light-emitting material layer of the first light-emitting unit is located in the first isolation opening to form the light-emitting functional part 6 of the first light-emitting unit. By controlling the evaporation angle, the light-emitting functional part 6 of the first light-emitting unit can be prevented from contacting the isolation structure 11.

[0173] The second electrode material layer of the first light-emitting unit is broken at the isolation structure 11, so that at least part of the second electrode material layer of the first light-emitting unit is located in the first isolation opening to form the second electrode 7 of the first light-emitting unit. By controlling the evaporation angle, the second electrode 7 of the first light-emitting unit can be extended from the isolation opening to make electrical contact with the isolation structure 11.

[0174] A first etched protective layer is formed in the first isolation opening corresponding to the first light-emitting unit. The first etched protective layer also extends to cover the partial isolation structure 11. The first etched protective layer can protect the light-emitting material layer, the second electrode material layer and the first encapsulation material layer corresponding to the first light-emitting unit.

[0175] The first encapsulation material layer, light-emitting material layer, and second electrode material layer of the first light-emitting unit that are not covered by the first etched protective layer are removed, and the first etched protective layer is removed, so that the light-emitting functional part 6, the second electrode 7, and the encapsulation unit 12 of the first light-emitting unit are formed in the first isolation opening, and the second electrode 7 extends to the isolation structure 11 corresponding to the first light-emitting unit for electrical connection.

[0176] After removing the first encapsulation material layer, the light-emitting material layer, and the second electrode material layer that are not covered by the first etched protective layer, the first electrode 5, the light-emitting functional part 6 of the first light-emitting unit, and the second electrode 7 form the first light-emitting unit. The first light-emitting unit is completely covered by the encapsulation unit 12, thereby reducing the risk of the vapor-deposited material entering the vapor-deposited equipment after being exposed to the air, causing equipment contamination and film breakage.

[0177] In this way, the light-emitting functional part 6, the second electrode 7 and the packaging unit 12 of the first light-emitting unit can be formed only in the first isolation opening corresponding to the first light-emitting unit without the need for a precision mask. The second electrode 7 can be electrically connected to the isolation structure 11, thereby forming the first light-emitting unit in the first isolation opening corresponding to the first light-emitting unit at a lower cost.

[0178] At least a portion of the second light-emitting unit is formed within the second isolation opening using the method described above.

[0179] Optionally, please see again Figure 2 and Figure 6 At least a portion of the first fractures 3 of the plurality of first fractures 3 are projected onto the substrate 4 at the chamfer of the projection of the pixel opening 91 onto the substrate 4.

[0180] The first break 3 is set at the chamfer position of the pixel opening 91. For example, when the orthographic projection of the pixel opening 91 on the substrate 4 is a rectangle, the first break 3 is set at any one of the four corners of the rectangle. In this way, the distance between the first break 3 and the pixel opening 91 can be increased. When the light emitted by the light-emitting unit 8 shines on the cross-section of the first break 3, the cross-section of the first break 3 is less likely to reflect light, or the light reflected by the first break 3 is weaker. Therefore, it is less likely to see bright lines generated by multiple first breaks 3 on the display panel, thereby further improving the display effect of the display panel.

[0181] Optionally, please see again Figure 2 and Figure 6 The minimum distance D between the center of the orthographic projection of the first break 3 on the substrate 4 and the edge of the orthographic projection of the pixel opening 91 on the substrate 4 is greater than or equal to 7μm and less than or equal to 10μm. For example, the minimum distance D can be 7μm, 8μm, 9μm or 10μm, etc. By reasonably setting the minimum distance D, it is less likely to see bright lines generated by multiple first breaks 3 on the display panel.

[0182] Optionally, please see Figure 2 and Figure 7a The first break 3 includes a first cross-section 21, the touch trace 2 includes a first cross-section 21, and the first cross-section 21 is disposed opposite to the side wall of the touch electrode 1 facing the first cross-section 21.

[0183] The fracture in the related technology includes two cross-sections arranged opposite each other. Both cross-sections of the fracture can reflect the light emitted by the light-emitting unit 8. Therefore, the light reflected by the light-emitting unit 8 from the fracture in the related technology is stronger, making it easier to see the bright lines generated by multiple fractures on the display panel.

[0184] In this embodiment, at least a portion of the multiple first breaks 3 include only a first cross-section 21 located on the touch trace 2. Corresponding to the first cross-section 21 is the sidewall of the touch electrode 1. The sidewall of the touch electrode 1 is not easily reflective, and the light emitted by the light-emitting unit 8 is mainly reflected through the first cross-section 21. Thus, compared with related technologies, this embodiment reduces one reflective cross-section, thereby reducing the amount of light reflected by the first break 3 and making it less likely for bright lines formed by multiple first breaks 3 to be seen in the display panel.

[0185] Optionally, please see again Figure 2 and Figure 7a The first break 3 includes a second cross section 101, the touch electrode 1 includes a second cross section 101, and the second cross section 101 is disposed opposite to the side wall of the touch trace 2 facing the second cross section 101.

[0186] Similarly, in this embodiment, at least a portion of the multiple first breaks 3 include only the second cross-section 101 located on the touch electrode 1. Corresponding to the second cross-section 101 is the sidewall of the touch trace 2. The sidewall of the touch trace 2 is not easily reflective, and the light emitted by the light-emitting unit 8 is mainly reflected through the second cross-section 101. Thus, compared with related technologies, this embodiment reduces one reflective cross-section, thereby reducing the amount of light reflected by the second break 15 and making it less likely for bright lines formed by multiple first breaks 3 to be seen in the display panel.

[0187] Optionally, a portion of the first section 21 is perpendicular to a portion of the second section 101.

[0188] If the two cross-sections of the first fracture 3 are set opposite each other, the reflection of the first fracture 3 will be more concentrated, and the bright line formed by the first fracture 3 will be easier to see in the display panel.

[0189] In this embodiment, the first cross-section 21 and the second cross-section 101 of the first fracture 3 are set to be perpendicular to each other. This can disperse the first cross-section 21 and the second cross-section 101, thereby dispersing the reflection of the first fracture 3, making it less likely for the bright line formed by the first fracture 3 to be seen in the display panel.

[0190] Optionally, a portion of the first section 21 and a portion of the second section 101 are parallel to each other.

[0191] In some embodiments, the first section 21 and the second section 101 may also be set to be parallel to each other. In this way, the first section 21 and the second section 101 can be set according to the actual situation, thereby increasing the flexibility of the setting of the first section 21 and the second section 101.

[0192] Optionally, the sum of the number of mutually perpendicular first cross-sections 21 and second cross-sections 101 is greater than the sum of the number of mutually parallel first cross-sections 21 and second cross-sections 101. In this way, the reflection of the first cross-section 3 can be dispersed, which is more conducive to improving the problem of bright lines forming in the display panel.

[0193] Optionally, please see again Figure 2 and Figure 7a The orthographic projection of a portion of the touch electrode 1 on the substrate 4 is located between the orthographic projections of two opposing first sections 21 on the substrate 4.

[0194] The two first cross-sections 21 are separated by the touch electrode 1. The touch electrode 1 extends into the gap formed by the touch trace 2. The second cross-section 101 on the touch electrode 1 extends to be opposite to the touch trace 2. In this way, the first cross-section 21 and the second cross-section 101 can be dispersed, thereby further dispersing the light reflected from the first cross-section 3.

[0195] Optionally, please see again Figure 2 and Figure 7a One pixel opening 91 corresponds to one first section 21 and one second section 101, or one pixel opening 91 corresponds to two second sections 101.

[0196] In the related technology, one pixel opening 91 corresponds to two breaks, and each break includes two cross-sections arranged opposite to each other. Therefore, one pixel opening 91 corresponds to four cross-sections. In this way, the light generated by one light-emitting unit 8 is reflected by four cross-sections, so that the bright lines generated by multiple breaks can be more easily seen in the display panel.

[0197] In this embodiment, one pixel opening 91 corresponds to one first cross-section 21 and one second cross-section 101, or one pixel opening 91 corresponds to two second cross-sections 101. Thus, one light-emitting unit 8 corresponds to two cross-sections, which reduces the number of cross-sections corresponding to one light-emitting unit 8. This reduces the light reflected from the cross-sections corresponding to one light-emitting unit 8, thereby further improving the problem of forming bright lines in the display panel.

[0198] Optionally, a first section 21 and a second section 101 corresponding to a pixel opening 91 are perpendicular to each other.

[0199] Optionally, one pixel opening 91 corresponds to two second sections 101 that are perpendicular to each other.

[0200] In this way, a light-emitting unit 8 not only corresponds to two cross-sections, but the two cross-sections are also perpendicular to each other. This not only reduces the amount of light reflected from the cross-sections, but also disperses the light reflected from the cross-sections, making it less likely for bright lines formed by the cross-sections to be seen in the display panel.

[0201] In summary, in the display panel formed by the above method in this application, by eliminating the non-functional traces between the touch electrode 1 and the touch trace 2, by setting the first break 3 at the chamfer of the pixel opening 91, by reducing the number of cross-sections of the first break 3, by reducing the number of cross-sections corresponding to one light-emitting unit 8, by dispersing the cross-sections of the first break 3, and by increasing the distance between the cross-section of the first break 3 and the pixel opening 91, it is not easy to see multiple first break 3 producing bright lines on the display panel, thereby greatly improving the display effect of the display panel.

[0202] For some possible implementations, please refer to Figure 12 This application also provides an electronic device 100, which includes the display panel 01 described in this application, or a display panel 01 prepared by the method described in this application. The electronic device 100 may include devices with image processing capabilities, such as mobile phones, desktop computers, laptops, tablets, automotive displays, wearable devices, etc. Because the electronic device 100 includes the display panel described in this application, its display effect is better.

[0203] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0204] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A display panel, characterized in that, The display panel includes: substrate; A pixel defining layer is located on one side of the substrate, and the pixel defining layer has a plurality of pixel openings; A light-emitting unit, at least a portion of which is located within the pixel opening; A touch layer is located on the side of the light-emitting unit away from the substrate. The touch layer includes a plurality of touch electrodes spaced apart and touch traces located between two of the touch electrodes. The touch traces are electrically connected to the corresponding touch electrodes, and there are a plurality of first breaks between the touch traces and the touch electrodes. Wherein, at least a portion of the first fractures are projected onto the substrate at a boundary angle close to the projection of the pixel opening onto the substrate.

2. The display panel according to claim 1, characterized in that, The orthogonal projection of the touch electrode on the substrate surrounds the orthogonal projection of at least a portion of the pixel opening on the substrate; The orthogonal projection of the touch traces on the substrate surrounds the orthogonal projection of at least a portion of the pixel openings on the substrate; The orthogonal projection of the touch electrode on the substrate and the orthogonal projection of the pixel opening on the substrate are spaced apart; The orthographic projection of the touch trace on the substrate and the orthographic projection of the pixel opening on the substrate are spaced apart.

3. The display panel according to claim 1, characterized in that, The minimum distance between the center of the orthographic projection of the first fracture on the substrate and the edge of the orthographic projection of the pixel opening on the substrate is greater than or equal to 7 μm and less than or equal to 10 μm.

4. The display panel according to claim 1, characterized in that, The first break includes a first cross-section, the touch trace includes the first cross-section, the first cross-section is disposed opposite to the sidewall of the touch electrode facing the first cross-section, the first cross-section is a side surface along the width direction of the touch trace, and the sidewall of the touch electrode is a side surface along the extension direction of the touch electrode.

5. The display panel according to claim 4, characterized in that, The first fracture includes a second cross-section, the touch electrode includes the second cross-section, the second cross-section is disposed opposite to the sidewall of the touch trace facing the second cross-section, the second cross-section is a side surface along the width direction of the touch electrode, and the sidewall of the touch trace is a side surface along the extension direction of the touch trace.

6. The display panel according to claim 5, characterized in that, The plurality of first fractures include a first type of first fracture and a second type of first fracture. The first type of first fracture includes a first cross-section, or the first type of first fracture includes a second cross-section. The second type of first fracture includes a third cross-section and a fourth cross-section. The touch trace includes the third cross-section, and the touch electrode includes the fourth cross-section. The third cross-section and the fourth cross-section are arranged opposite to each other. The number of first fracture surfaces of the first type is greater than the number of first fracture surfaces of the second type.

7. The display panel according to claim 1, characterized in that, The touch traces form a semi-enclosed structure, and the touch electrodes extend into the semi-enclosed structure.

8. The display panel according to claim 7, characterized in that, The orthogonal projection of the semi-enclosed structure on the substrate surrounds the orthogonal projection of at least two of the pixel openings on the substrate; The orthographic projection of the touch electrode extending into the semi-enclosed structure on the substrate is located between the orthographic projections of two adjacent pixel openings on the substrate, and the orthographic projections of the two adjacent pixel openings on the substrate are located within the orthographic projection of the semi-enclosed structure on the substrate.

9. The display panel according to claim 5, characterized in that, One pixel opening corresponds to one first cross section and one second cross section, or one pixel opening corresponds to two second cross sections.

10. The display panel according to claim 1, characterized in that, The orthographic projections of the touch traces on the substrate and the orthographic projections of the touch electrodes on the substrate are arranged alternately; The display panel also includes a chip, and the touch traces are electrically connected to the chip.

11. The display panel according to claim 1, characterized in that, The touch electrode is configured as a self-capacitive touch electrode; The touch electrode includes multiple second breaks; The absolute value of the difference between the number of the first fractures and the number of the second fractures per unit area is less than or equal to 5% of the number of the second fractures.

12. The display panel according to claim 11, characterized in that, The number of the first fractures per unit area is equal to the number of the second fractures.

13. The display panel according to any one of claims 1-12, characterized in that, The display panel also includes: An isolation structure is located between the pixel defining layer and the touch layer. The isolation structure encloses and forms a plurality of isolation openings, which are connected to the corresponding pixel openings. At least a portion of the light-emitting unit is located within the isolation openings. The orthogonal projection of the touch electrode on the substrate surrounds at least a portion of the orthogonal projection of the isolation opening on the substrate; The orthogonal projection of the touch trace on the substrate surrounds at least a portion of the orthogonal projection of the isolation opening on the substrate; The orthogonal projection of the touch electrode on the substrate and the orthogonal projection of the isolation opening on the substrate are spaced apart; The orthographic projection of the touch trace on the substrate and the orthographic projection of the isolation opening on the substrate are spaced apart.

14. The display panel according to claim 13, characterized in that, The display panel also includes: Multiple encapsulation units are located between the light-emitting unit and the touch layer, and a portion of the encapsulation unit extends from the side of the isolation structure toward the isolation opening to the side of the isolation structure away from the substrate; The multiple light-emitting units are spaced apart from each other; The packaging unit located on the side of the isolation structure away from the substrate has a gap with the side of the isolation structure away from the substrate.

15. The display panel according to claim 14, characterized in that, The display panel further includes a second encapsulation layer located on the side of the encapsulation unit away from the substrate and a third encapsulation layer located on the side of the second encapsulation layer away from the substrate, and the touch layer is located on the side of the third encapsulation layer away from the substrate; Both the packaging unit and the third packaging layer are made of inorganic materials. The material of the second encapsulation layer includes organic materials.

16. The display panel according to claim 13, characterized in that, The isolation structure includes a first isolation portion and a second isolation portion stacked sequentially along a direction away from the substrate. The orthographic projection of the side of the first isolation portion away from the substrate on the substrate is located within the orthographic projection of the second isolation portion on the substrate. The orthographic projection area of ​​the side of the first isolation portion away from the substrate on the substrate is smaller than the orthographic projection area of ​​the second isolation portion on the substrate. The second electrode of the light-emitting unit is electrically connected to the first isolation portion. The isolation structure further includes a third isolation portion located on the side of the first isolation portion facing the substrate, and the second electrode of the light-emitting unit is electrically connected to the third isolation portion; The material of the third isolation part includes molybdenum or titanium; and / or, the material of the first isolation part includes aluminum, silver or copper; and / or, the material of the second isolation part includes titanium or molybdenum.

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