Display panel, manufacturing method thereof and display device

Abstract

The invention relates to a display panel, a manufacturing method thereof and a display device. The display panel comprises a substrate, a partition structure, a plurality of light emitting units, a plurality of first electrode parts and a touch electrode layer, the partition structure is arranged on one side of the substrate, and a plurality of partition openings are defined by the partition structure; the plurality of light-emitting units are correspondingly arranged in the plurality of partition openings; the multiple first electrode parts correspond to the multiple light-emitting units, and each first electrode part is located on the side, away from the substrate, of the corresponding light-emitting unit; the touch electrode layer is arranged on the side, away from the substrate, of the partition structure, and the touch electrode layer and the first electrode parts are arranged on the same layer and are electrically insulated. Compared with a display panel adopting an On-Cell technology, on one hand, the number of film layers of the touch module can be reduced, the use amount of masks and the number of alignment times can be reduced, the display effect of the display panel can be improved, the manufacturing procedures can be reduced, and the manufacturing cost can be reduced; on the other hand, the thickness of the display panel can be reduced, and lightening and thinning of the display panel are facilitated.

Description

Technical Field

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

[0002] OLED (Organic Light-Emitting Diode) has the characteristics of self-luminescence, high brightness, wide viewing angle, high contrast, flexibility, and low energy consumption. Therefore, it has attracted widespread attention. As a new generation of display method, it has begun to gradually replace traditional liquid crystal displays and is widely used in mobile phone screens, computer monitors, full-color TVs, etc.

[0003] There is an increasing demand for adding touch panels to OLED display devices to send information to the OLED display device by touching a portion of the panel with a hand or a separate input member. Conventional touch panels are divided into three types: Add-On type, On-Cell type, and In-Cell type. Add-On type touch panels are attached to the outer surface of the OLED display device, On-Cell type touch panels are arranged on the OLED display panel, and In-Cell type touch panels are installed inside the OLED display panel. However, the OLED display devices currently using On-Cell technology have the problems of high production costs and thick product thickness. Summary of the invention

[0004] Based on this, it is necessary to provide a display panel and a manufacturing method thereof, and a display device to address at least one of the above problems.

[0005] According to one aspect of the present application, a display panel is provided, the display panel comprising:

[0006] substrate;

[0007] A partition structure is arranged on one side of the substrate, and the partition structure defines a plurality of partition openings;

[0008] A plurality of light-emitting units are correspondingly arranged in the plurality of partition openings;

[0009] A plurality of first electrode portions, corresponding to the plurality of light-emitting units, each of the first electrode portions being located at a side of the corresponding light-emitting unit away from the substrate;

[0010] A touch electrode layer is disposed on a side of the partition structure away from the substrate, and the touch electrode layer is disposed in the same layer as the plurality of first electrode portions and is electrically insulated.

[0011] The display panel provided in the embodiment of the present application, by setting the touch electrode layer on the side of the partition structure away from the substrate, the touch electrode layer and the multiple first electrode parts are set in the same layer, so that when the first electrode part is manufactured, the touch electrode layer can be manufactured simultaneously. In this way, compared with the display panel using On-Cell technology, on the one hand, the number of film layers of the touch module can be reduced, the amount of mask used and the number of alignment times can be reduced, thereby reducing the probability of the light-emitting unit being blocked due to the mask alignment deviation, improving the display effect of the display panel, and reducing the production process and reducing the production cost; on the other hand, the thickness of the display panel can be reduced, which is conducive to the thinness of the display panel.

[0012] In one embodiment, the touch electrode layer includes a plurality of touch electrode blocks arranged at intervals.

[0013] In one embodiment, the orthographic projection of the touch electrode blocks on the substrate is in a grid shape.

[0014] In one embodiment, the plurality of touch electrode blocks are arranged in rows along a first direction, and arranged in columns along a second direction intersecting the first direction; and the first direction and the second direction are both perpendicular to the thickness direction of the substrate.

[0015] In one of the embodiments, the touch electrode layer includes a plurality of touch electrode units that are spaced apart and electrically insulated, and the touch electrode units include a first touch electrode and a second touch electrode; the first touch electrode and the second touch electrode are spaced apart and electrically insulated; one of the first touch electrode and the second touch electrode is a transmitting electrode, and the other is a receiving electrode.

[0016] In one embodiment, there are a plurality of first touch electrodes, and the plurality of first touch electrodes are arranged at intervals. There is one second touch electrode, and the second touch electrode is located between adjacent first touch electrodes.

[0017] In one embodiment, the second touch electrode includes a second electrode trunk extending along a first direction, and a second electrode branch arranged on at least one side of the second electrode trunk along the second direction, and the second electrode branch is electrically connected to the second electrode trunk; the second electrode trunk is located between adjacent first touch electrodes, and the second electrode branch is located between adjacent first touch electrodes; the first direction intersects with the second direction, and the first direction and the second direction are both perpendicular to the thickness direction of the substrate.

[0018] In one embodiment, there are multiple second electrode branches, and the multiple second electrode branches are arranged at intervals along the first direction.

[0019] In one embodiment, the second electrode branches located on both sides of the second electrode trunk along the second direction are staggered in the first direction.

[0020] In one embodiment, the orthographic projection of the first touch electrodes on the substrate is in a grid shape.

[0021] In one embodiment, the orthographic projection of the second touch electrodes on the substrate is in a grid shape.

[0022] In one of the embodiments, the display panel further includes a plurality of touch lines; the plurality of touch lines are disposed in the same layer as the first electrode portion, and the plurality of touch lines are electrically connected to the touch electrode layer.

[0023] In one of the embodiments, the display panel includes a display area and a non-display area surrounding at least a portion of the display area; the partition structure includes a first part located in the display area and a second part located in the non-display area; the multiple touch lines are located on a side of the second part away from the substrate, and the touch electrode layer is located on a surface of the first part on a side away from the substrate; the touch lines are electrically connected to the touch electrode layer.

[0024] In one embodiment, the plurality of touch lines are disposed in the same layer as the touch electrode layer.

[0025] In one embodiment, the touch electrode layer covers at least a portion of a surface of the partition structure that is away from the substrate.

[0026] In one embodiment, the partition structure includes a conductive portion, and the first electrode portion is electrically connected to the conductive portion.

[0027] In one of the embodiments, the partition structure further includes a blocking portion arranged on a side of the conductive portion facing away from the substrate, and the orthographic projection of the conductive portion on the substrate is located within the orthographic projection of the blocking portion on the substrate; the touch electrode layer is located on a side of the blocking portion facing away from the conductive portion.

[0028] In one embodiment, the orthographic projection of the touch electrode layer on the substrate is located within the orthographic projection of the conductive portion on the substrate.

[0029] In one embodiment, the orthographic projection of the touch electrode layer on the substrate is located within the orthographic projection of the blocking portion on the substrate.

[0030] In one embodiment, the material of the blocking portion includes insulating material.

[0031] In one embodiment, the material of the blocking portion includes a conductive material.

[0032] In one embodiment, the light-emitting unit includes an organic light-emitting layer, and the light-emitting unit also includes at least one of a hole injection layer, a hole transport layer, an electron transport layer, and an electron injection layer; there is a distance between the light-emitting unit and the conductive portion;

[0033] In one embodiment, the display panel further includes a plurality of second electrode portions arranged at intervals, the plurality of second electrode portions correspond one-to-one to the plurality of light-emitting units, and the second electrode portions are located on a side of the corresponding light-emitting unit close to the substrate.

[0034] In one of the embodiments, the display panel further includes an isolation layer, which is disposed on a side of the partition structure close to the substrate, and the isolation layer is constructed as an insulating film layer; the isolation layer is provided with a plurality of first openings for exposing the second electrode portion, and the light-emitting unit is at least partially disposed in the first opening.

[0035] In one embodiment, the orthographic projection of the partition structure on the substrate is located at the periphery of the orthographic projection of the first opening on the substrate.

[0036] In one of the embodiments, it further includes a packaging structure layer, the packaging structure layer is arranged on a side of the light-emitting unit away from the substrate, and the packaging structure layer covers the multiple light-emitting units, the partition structure and the touch electrode layer;

[0037] In one embodiment, the encapsulation structure layer includes a first encapsulation layer, a second encapsulation layer and a third encapsulation layer which are sequentially stacked in a direction away from the substrate;

[0038] In one embodiment, the first encapsulation layer and the third encapsulation layer are inorganic encapsulation layers, and the second encapsulation layer is an organic encapsulation layer.

[0039] According to another aspect of the present application, a method for manufacturing a display panel is provided, the manufacturing method comprising:

[0040] providing a substrate;

[0041] A plurality of light-emitting units and a partition structure are formed on one side of the substrate, wherein the partition structure defines a plurality of partition openings; and a plurality of light-emitting units are correspondingly arranged in the plurality of partition openings;

[0042] forming an electrode material layer on a side of the light-emitting unit away from the substrate, wherein the electrode material layer covers the plurality of light-emitting units and the partition structure;

[0043] The electrode material layer is patterned to obtain a plurality of first electrode portions corresponding to the plurality of light-emitting units, and a touch electrode layer disposed on a surface of the partition structure facing away from the substrate.

[0044] The manufacturing method of the display panel provided in the embodiment of the present application forms an electrode material layer on the side of the light-emitting unit away from the substrate, and the electrode material layer covers the light-emitting unit and the partition structure; the electrode material layer is patterned to obtain a plurality of first electrode portions corresponding to the plurality of light-emitting units, and a touch electrode layer arranged on the side of the partition structure away from the substrate, that is, the plurality of first electrode portions and the touch electrode layer can be manufactured simultaneously. Thus, compared with the display panel using the On-Cell technology, on the one hand, the number of film layers of the touch module can be reduced, the amount of mask used and the number of alignment times can be reduced, thereby reducing the probability of the light-emitting unit being blocked due to the mask alignment deviation, improving the display effect of the display panel, and reducing the manufacturing process, improving the manufacturing efficiency, and reducing the manufacturing cost; on the other hand, the thickness of the display panel can be reduced, which is conducive to the thinness of the display panel.

[0045] In one of the embodiments, the manufacturing method further includes: forming a packaging structure layer on a side of the light-emitting unit away from the substrate, wherein the packaging structure layer covers the multiple light-emitting units, the partition structure and the touch electrode layer.

[0046] According to another aspect of the present application, a display device is provided, comprising a display panel in any one of the above embodiments, thereby improving the display effect of the display device, reducing the manufacturing cost of the display device, and facilitating the thinning of the display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 A schematic diagram of a planar structure of a display panel provided in one embodiment of the present application.

[0048] Figure 2 for Figure 1 FIG. 1 is a schematic diagram of a top view of a partial structure of a display panel.

[0049] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of the touch electrode layer at B shown in FIG.

[0050] Figure 4 for Figure 3 Schematic diagram of a cross-sectional structure in the CC direction.

[0051] Figure 5 for Figure 3 Schematic diagram of another cross-sectional structure in the CC direction.

[0052] Figure 6 for Figure 1 Schematic diagram of a cross-sectional structure in the AA direction.

[0053] Figure 7 for Figure 1 Schematic diagram of another cross-sectional structure in the AA direction.

[0054] Figure 8 A schematic diagram of the structure of a touch electrode unit of a display panel provided in one embodiment of the present application.

[0055] Fig. 9 A flowchart of a method for manufacturing a display panel provided in one embodiment of the present application.

[0056] Fig.10 Another flow chart of a method for manufacturing a display panel provided in one embodiment of the present application.

[0057] Fig.11 A schematic diagram of the structure of a display device provided in one embodiment of the present application.

[0058] Description of reference numerals:

[0059] 1. display device; 10. display panel; 10a. display area; 10b. non-display area; 11. substrate; 12. partition structure; 12a. partition opening; 12b. first part; 12c. second part; 121. conductive part; 122. blocking part; 13. light-emitting unit; 14. first electrode part; 15. touch electrode layer; 151a. touch electrode block; 151b. touch electrode unit; 1511. first touch electrode; 1512. second touch electrode; 1512-1. second electrode trunk; 1512-2. second electrode branch; 16. touch trace; 17. second electrode part; 18. isolation layer; 18a. first opening; 19. packaging structure layer; 191. first packaging layer; 192. second packaging layer; 193. third packaging layer; X, first direction; Y, second direction. DETAILED DESCRIPTION

[0060] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0061] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0062] When describing positional relationships, unless otherwise specified, when an element such as a layer, film, or substrate is referred to as being "on" another element, it can be directly on the other element or there can be intervening elements. Further, when a layer is referred to as being "under" another layer, it can be directly below or there can be one or more light-emitting units. It is also understood that when a layer is referred to as being "between" two layers, it can be the only layer between the two layers or there can be one or more light-emitting units.

[0063] In the case of using “including”, “having”, and “comprising” described herein, another component may be added unless a clear limiting term such as “only”, “consisting of”, etc. is used. Unless mentioned otherwise, a term in the singular form may include a plural form and should not be understood as being one in number.

[0064] It should be understood that although the terms "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of the present application.

[0065] It should also be understood that when interpreting an element, even if not explicitly described, the element is interpreted as including a range of error, which should be within the acceptable deviation range of the specific value determined by those skilled in the art. For example, "approximately", "approximately" or "substantially" can mean within one or more standard deviations, which are not limited here.

[0066] Furthermore, in the specification, the phrase “planar distribution schematic diagram” refers to a drawing when a target portion is viewed from above, and the phrase “cross-sectional schematic diagram” refers to a drawing when a section taken by vertically cutting the target portion is viewed from the side.

[0067] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the elements in the drawings are drawn only as examples and not necessarily according to the true scale.

[0068] As described in the background technology, in the OLED display device of the related On-Cell technology, at least three masks are required when making a touch panel, among which one mask is used to make a touch electrode, one mask is used to make an insulating layer on the touch electrode, and one mask is used to make a bridge layer of the touch electrode. In this way, on the one hand, the use of more masks leads to a higher production cost, and on the other hand, the touch panel has more film layers, resulting in a thicker product thickness. In addition, with the continuous improvement of the pixel density (PPI, Pixels Per Inch) in OLED display devices, the space left for the layout of touch electrodes is getting smaller and smaller. When performing multiple mask alignments, alignment deviations are prone to occur, resulting in the pixel opening being blocked, thereby reducing the transmittance of the display panel, causing the display panel to have a visual color deviation, and reducing the display effect of the display panel.

[0069] Based on this, the embodiments of the present application provide a display panel and a manufacturing method thereof, and a display device. By setting the touch electrode layer on the surface of the partition structure away from the substrate, the touch electrode layer and the multiple first electrode parts are arranged in the same layer. In this way, when the first electrode part is manufactured, the touch electrode layer can be manufactured simultaneously. In this way, compared with the display panel using On-Cell technology, on the one hand, the number of film layers of the touch module can be reduced, the amount of mask used and the number of alignment times can be reduced, thereby reducing the probability of the light-emitting unit being blocked due to Mask alignment deviation, improving the display effect of the display panel, and reducing the manufacturing process and reducing the manufacturing cost; on the other hand, the thickness of the display panel can be reduced, which is conducive to the thinness of the display panel.

[0070] First, see Figures 1 to 5 As shown, an embodiment of the present application provides a display panel 10. The display panel 10 includes a substrate 11, a partition structure 12, a plurality of light-emitting units 13, a plurality of first electrode portions 14, and a touch electrode layer 15. The partition structure 12 is disposed on one side of the substrate 11, and the partition structure 12 defines a plurality of partition openings 12a; the plurality of light-emitting units 13 are correspondingly disposed in the plurality of partition openings 12a; the plurality of first electrode portions 14 correspond to the plurality of light-emitting units 13, and each first electrode portion 14 is located on a side of the corresponding light-emitting unit 13 away from the substrate 11; the touch electrode layer 15 is disposed on a side of the partition structure 12 away from the substrate 11, and the touch electrode layer 15 and the plurality of first electrode portions 14 are disposed in the same layer and are electrically insulated.

[0071] It should be noted that the touch electrode layer 15 and the plurality of first electrode portions 14 are arranged in the same layer, which can be understood as: the touch electrode layer 15 and the plurality of first electrode portions 14 can be obtained by patterning the same film layer, and the touch electrode layer 15 and the first electrode portion 14 are made of the same material. In this way, the number of film layers of the touch module can be reduced, and the touch electrode layer 15 and the plurality of first electrode portions 14 can be made with only one mask, which reduces the amount of masks used and the number of alignments, thereby reducing the probability of the light-emitting unit 13 being blocked due to mask alignment deviation, improving the display effect of the display panel 10, and reducing the production process and production cost; on the other hand, the thickness of the display panel 10 can be reduced, which is conducive to the thinning of the display panel 10; in addition, it is conducive to increasing the width of the orthographic projection of the touch electrode layer 15 in the first plane, and the first plane is parallel to the thickness direction of the substrate 11 and perpendicular to the extension direction of the partition structure 12, thereby improving the touch performance.

[0072] Specifically, the display panel 10 may be an organic light emitting diode display panel 10 (Organic Light Emitting Diode, referred to as OLED), a quantum dot electroluminescent display panel 10 (Quantum Dot Light Emitting Diodes, referred to as QLED), or the like.

[0073] The substrate 11 may include a substrate and a driving circuit layer disposed on the substrate. The substrate may be a rigid substrate or a flexible substrate. When the substrate is a rigid substrate, the material of the substrate may be glass or silicon wafer, etc. When the substrate is a flexible substrate, the material of the substrate may be polyimide.

[0074] The partition structure 12 is a structure that can partition the vapor deposition material in the light-emitting unit 13. The orthographic projection of the partition structure 12 on the substrate 11 can be a grid or an independent ring. The partition structure 12 can avoid crosstalk between sub-pixels of different colors.

[0075] The plurality of light emitting units 13 are disposed in the plurality of partition openings 12a, and one light emitting unit 13 corresponds to one partition opening 12a, or the plurality of light emitting units 13 correspond to one partition opening 12a. The first electrode portion 14 may be a cathode, and the first electrode portion 14 is electrically connected to the driving circuit layer in the substrate 11.

[0076] The display panel 10 provided in the embodiment of the present application is configured such that the touch electrode layer 15 is disposed on the side of the partition structure 12 away from the substrate 11, and the touch electrode layer 15 is disposed on the same layer as the plurality of first electrode portions 14. Thus, when the first electrode portion 14 is manufactured, the touch electrode layer 15 can be manufactured simultaneously. Thus, compared with the display panel using the On-Cell technology, on the one hand, the number of film layers of the touch module can be reduced, the amount of mask used and the number of alignment times can be reduced, thereby reducing the probability of the light-emitting unit 13 being blocked due to mask alignment deviation, thereby improving the display effect of the display panel 10, and reducing the manufacturing process and the manufacturing cost. On the other hand, the thickness of the display panel 10 can be reduced, which is beneficial to making the display panel 10 thinner and lighter. In addition, the width of the orthographic projection of the touch electrode layer 15 in the first plane can be increased, thereby improving the touch effect.

[0077] like Figure 2 and Figure 3 As shown, in one embodiment, the touch electrode layer 15 includes a plurality of touch electrode blocks 151a arranged at intervals. The formation process of the plurality of touch electrode blocks 151a is to set a plurality of breakpoints in the entire touch mesh structure, thereby dividing the plurality of touch electrode blocks 151a.

[0078] In this way, only one touch electrode layer 15 may be provided in the display panel 10 to enable the display panel 10 to have a touch function, thereby reducing the thickness of the display panel 10 .

[0079] It should be noted that, in the embodiment of the present application, each touch electrode block 151a is both a driving electrode and a receiving electrode, and the touch electrode block 151a can realize the touch function through the self-capacitance principle with the assistance of other metal film layers on the display panel 10.

[0080] like Figure 3 As shown, in one embodiment, the orthographic projection of the touch electrode block 151a on the substrate 11 is in a grid shape, that is, the touch electrode block 151a is a grid structure. Specifically, the grid-shaped touch electrode block 151a may have a plurality of meshes.

[0081] like Figure 2 As shown, in one embodiment, the plurality of touch electrode blocks 151 a are arranged in rows along a first direction X and in columns along a second direction Y intersecting the first direction X; and the first direction X and the second direction Y are both perpendicular to the thickness direction of the substrate 11 .

[0082] In this way, the touch electrode blocks 151 a can be distributed more evenly, so that the touch accuracy of the display panel 10 is higher.

[0083] like Figure 8As shown, in one embodiment, the touch electrode layer 15 includes a plurality of touch electrode units 151b that are spaced apart and electrically insulated, and the touch electrode unit 151b includes a first touch electrode 1511 and a second touch electrode 1512; the first touch electrode 1511 and the second touch electrode 1512 are spaced apart and electrically insulated; one of the first touch electrode 1511 and the second touch electrode 1512 is a transmitting electrode, and the other is a receiving electrode.

[0084] By setting a plurality of touch electrode units 151b, the touch electrode unit 151b includes a first touch electrode 1511 and a second touch electrode 1512, one of the first touch electrode 1511 and the second touch electrode 1512 is a transmitting electrode and the other is a receiving electrode, while reducing the thickness of the display panel 10, the touch precision and accuracy of the display panel 10 can be improved.

[0085] like Figure 8 As shown, in one embodiment, there are multiple first touch electrodes 1511 , which are arranged at intervals, and there is only one second touch electrode 1512 , which is located between adjacent first touch electrodes 1511 .

[0086] In this way, the mutual capacitance between the first touch electrode 1511 and the second touch electrode 1512 can be increased, so that the mutual capacitance electric field lines are distributed more evenly, which is beneficial to improving the resolution and accuracy of detecting the touch position.

[0087] like Figure 8 As shown, in one embodiment, the second touch electrode 1512 includes a second electrode trunk 1512-1 extending along the first direction X, and a second electrode branch 1512-2 arranged on at least one side of the second electrode trunk 1512-1 along the second direction Y, and the second electrode branch 1512-2 is electrically connected to the second electrode trunk 1512-1; the second electrode trunk 1512-1 is located between adjacent first touch electrodes 1511, and the second electrode branch 1512-2 is located between adjacent first touch electrodes 1511; the first direction X intersects with the second direction Y, and the first direction X and the second direction Y are both perpendicular to the thickness direction of the substrate 11.

[0088] In this way, the coupling area between the first touch electrode 1511 and the second touch electrode 1512 can be increased, and the change amount of the capacitance signal when a finger touches can be effectively increased, thereby effectively improving the touch sensitivity.

[0089] like Figure 8 As shown, in one embodiment, there are multiple second electrode branches 1512 - 2 , and the multiple second electrode branches 1512 - 2 are arranged along the first direction X at intervals.

[0090] In this way, the coupling area between the first touch electrode 1511 and the second touch electrode 1512 can be further increased, and the change amount of the capacitance signal when a finger touches can be further increased, thereby further improving the touch sensitivity.

[0091] like Figure 8 As shown, in one embodiment, the second electrode branches 1512 - 2 located on both sides of the second electrode trunk 1512 - 1 along the second direction Y are arranged in a staggered manner in the first direction X.

[0092] In this way, the first touch electrodes 1511 on both sides of the second electrode trunk 1512 - 1 are arranged in a staggered manner in the first direction X, thereby reducing interference between the first touch electrodes 1511 , reducing the probability of display defects (such as etching lines) of the display panel 10 , and improving the display effect of the display panel 10 .

[0093] like Figure 3 As shown, in one embodiment, the orthographic projection of the first touch control electrode 1511 on the substrate 11 is in a grid shape. That is, the first touch control electrode 1511 is a grid structure. Specifically, the grid-shaped first touch control electrode 1511 may have a plurality of meshes.

[0094] like Figure 3 As shown, in one embodiment, the orthographic projection of the second touch electrode 1512 on the substrate 11 is in a grid shape. That is, the second touch electrode 1512 is a grid structure. Specifically, the grid-shaped second touch electrode 1512 may have a plurality of meshes.

[0095] like Figure 2 , Figure 6 , Figure 8 As shown, in one embodiment, the display panel 10 further includes a plurality of touch lines 16 ; the plurality of touch lines 16 are disposed in the same layer as the first electrode portion 14 , and the plurality of touch lines 16 are electrically connected to the touch electrode layer 15 .

[0096] In this way, the touch wiring 16 and the first electrode portion 14 can be manufactured in the same process, that is, the touch wiring 16 can be manufactured simultaneously while manufacturing a plurality of first electrode portions 14, thereby reducing masks and reducing manufacturing costs.

[0097] It can be understood that, in the embodiment where the touch electrode layer 15 includes only the touch electrode blocks 151a, each touch electrode block 151a is connected to a corresponding touch trace 16. In the embodiment where the touch electrode layer 15 includes the first touch electrodes 1511 and the second touch electrodes 1512, the touch traces 16 may include first touch traces and second touch traces, each first touch electrode 1511 corresponds to a first touch trace, and each second touch electrode 1512 corresponds to a second touch trace.

[0098] like Figure 2 , Figure 7 , Figure 8 As shown, in one embodiment, the display panel 10 includes a display area 10a and a non-display area 10b surrounding at least a portion of the display area 10a; the partition structure 12 includes a first portion 12b located in the display area 10a and a second portion 12c located in the non-display area 10b; a plurality of touch lines 16 are located on a side of the second portion 12c away from the substrate 11, and the touch electrode layer 15 is located on a surface of the first portion 12b on a side away from the substrate 11; the touch lines 16 are electrically connected to the touch electrode layer 15.

[0099] In this way, the touch wiring 16, the touch electrode layer 15 and the first electrode portion 14 can be manufactured simultaneously in the same process, that is: while manufacturing multiple first electrode portions 14, the touch electrode layer 15 and the touch wiring 16 can be manufactured simultaneously, thereby reducing the mask and lowering the manufacturing cost; in addition, the electrical connection between the touch wiring 16 and the touch electrode layer 15 can be facilitated.

[0100] like Figure 7 As shown, in one embodiment, a plurality of touch lines 16 are disposed in the same layer as the touch electrode layer 15. Specifically, the plurality of touch lines 16 are disposed on the surface of the second portion 12c on the side away from the substrate 11. That is, the touch lines 16 and the touch electrode layer 15 are disposed in the same layer in terms of physical structure, and are obtained by patterning the same film layer. In this way, the number of masks can be reduced, the manufacturing cost can be reduced, and the electrical connection between the touch lines 16 and the touch electrode layer 15 can be facilitated.

[0101] In one embodiment, the touch electrode layer 15 covers at least a portion of the surface of the partition structure 12 away from the substrate 11 .

[0102] In this way, the patterning process can be facilitated, and the electrode material layer attached to the side wall of the isolation opening 12a can be etched away.

[0103] like Figure 4 As shown, in one embodiment, the partition structure 12 includes a conductive portion 121 , and the first electrode portion 14 is electrically connected to the conductive portion 121 .

[0104] Thus, on the one hand, the plurality of first electrode portions 14 are connected as a whole with the conductive portion 121, which can shield the touch electrode layer 15, reduce the electrical interference of the touch electrode layer 15 on the components on the substrate 11, and improve the touch and display effects. On the other hand, the plurality of first electrode portions 14 are connected as a whole through the conductive portion 121, which is conducive to reducing the number of cathode wirings, especially when the partition structure 12 includes a first portion 12b located in the display area 10a and a second portion 12c located in the non-display area 10b, the number of cathode wirings can be further reduced, thereby facilitating the realization of a narrow frame; moreover, the thickness of the conductive portion 121 is relatively thick, which is also conducive to reducing the impedance of the first electrode portion 14, thereby reducing the power consumption of the display panel 10.

[0105] like Figure 6 As shown, in one embodiment, the partition structure 12 also includes a blocking portion 122 arranged on the side of the conductive portion 121 facing away from the substrate 11, and the orthographic projection of the conductive portion 121 on the substrate 11 is located within the orthographic projection of the blocking portion 122 on the substrate 11; the touch electrode layer 15 is located on the side of the blocking portion 122 facing away from the conductive portion 121.

[0106] In this way, the conductive part 121 and the blocking part 122 can together form an isolation wall. On the one hand, the isolation wall can be formed into an undercut structure with a "large top and small bottom", so that the isolation wall has better isolation performance, thereby improving the isolation performance of the isolation structure; on the other hand, by arranging the conductive part 121 below the blocking part 122, it is convenient to electrically connect the conductive part 121 with other film layers. In addition, the touch electrode layer 15 is located on the side of the blocking part 122 away from the conductive part 121, which can facilitate the simultaneous production of the first electrode part 14 and the touch electrode layer 15, increase the distance between the elements on the substrate 11 of the touch electrode layer 15, and reduce the electrical interference of the touch electrode layer 15 on the elements on the substrate 11.

[0107] like Figure 5 As shown, in one embodiment, the orthographic projection of the touch electrode layer 15 on the substrate 11 is located within the orthographic projection of the conductive portion 121 on the substrate 11 .

[0108] In this way, the capacitance between the touch electrode layer 15 and the conductive portion 121 can be reduced, thereby improving the touch sensitivity.

[0109] like Figure 7 As shown, in one embodiment, the orthographic projection of the touch electrode layer 15 on the substrate 11 is located within the orthographic projection of the blocking portion 122 on the substrate 11 .

[0110] In this way, the patterning process can be facilitated, and the electrode material layer attached to the side wall of the isolation opening 12a can be ensured to be etched away.

[0111] In one embodiment, the material of the blocking portion 122 includes an insulating material. When the touch electrode layer 15 includes a plurality of touch electrode blocks 151a, the touch electrode blocks 151a can realize the touch function through the self-capacitance principle with the assistance of other metal film layers on the display panel 10. By making the material of the blocking portion 122 include an insulating material, the capacitance between the touch electrode blocks 151a and other metal film layers can be increased, so that the mutual capacitance electric field lines are distributed more evenly, which is conducive to improving the resolution and accuracy of detecting the touch position.

[0112] In one embodiment, the material of the blocking portion 122 includes a conductive material. The strength and hardness of the blocking portion 122 can be improved, so that the blocking portion 122 is not easy to collapse during the molding process of the partition structure 12, and the projection relationship between the blocking portion 122 and the isolator on the substrate 11 is ensured, which is conducive to obtaining the partition structure 12 of the desired shape. In addition, when the material of the blocking portion 122 includes a conductive material, an insulating layer (not shown in the figure) is provided between the blocking portion 122 and the touch electrode layer 15, so that the normal touch function can be ensured.

[0113] like Figures 4 to 7 As shown, in one embodiment, the cross-sectional shape of the conductive portion 121 on the first plane is a trapezoid, and the first plane is parallel to the thickness direction of the substrate 11 and perpendicular to the extension direction of the partition structure 12. In a specific example, the cross-sectional shape of the conductive portion 121 on the first plane is a regular trapezoid, which is conducive to improving the overlap stability when the first electrode portion 14 and the conductive portion 121 are overlapped. In another specific example, the cross-sectional shape of the conductive portion 121 on the first plane is an inverted trapezoid. In this case, it is conducive to isolating the light-emitting material layers formed on different sides of the conductor portion from each other during the evaporation process. In addition, in this case, the blocking portion 122 may not be required in the partition structure 12. In another specific example, the cross-sectional shape of the conductive portion 121 on the first plane is a rectangle, and the first plane is parallel to the thickness direction of the substrate 11 and perpendicular to the extension direction of the partition structure 12.

[0114] In one embodiment, the light-emitting unit 13 includes an organic light-emitting layer (EML), and the light-emitting unit 13 also includes at least one of a hole injection layer (HIL), a hole transport layer (HTL), an electron transport layer (ETL), an electron injection layer (EIL), a hole blocking layer (HBL) and an electron blocking layer (EBL). The light-emitting unit 13 may also be a stacked light-emitting layer, that is, including at least two light-emitting layers and a charge generation layer (CGL) located between each adjacent light-emitting layer.

[0115] In this way, when the material of the partition structure 12 is a conductive material, the light-emitting unit 13 is arranged to have a spacing with the isolation structure, thereby ensuring that the film layers of the light-emitting units 13 of different colors are insulated from each other, thereby avoiding the problem of current crosstalk between adjacent light-emitting units 13, and ensuring that when the light-emitting unit 13 of the corresponding color is lit, the current will not be transmitted laterally to the adjacent light-emitting unit 13, thereby preventing the display panel 10 from having a color crosstalk problem and improving the display effect.

[0116] like Figures 4 to 7 As shown, in one embodiment, the display panel 10 further includes a plurality of second electrode portions 17 arranged at intervals, the plurality of second electrode portions 17 correspond to the plurality of light-emitting units 13 one by one, and the second electrode portion 17 is located on a side of the corresponding light-emitting unit 13 close to the substrate 11. It can be understood that the second electrode portion 17 can be an anode, and the first electrode portion 14 and the second electrode portion 17 are both electrically connected to the driving circuit layer in the substrate 11.

[0117] like Figures 4 to 7 As shown, in one embodiment, the display panel 10 further includes an isolation layer 18, which is disposed on a side of the partition structure 12 close to the substrate 11, and is constructed as an insulating film layer; the isolation layer 18 is provided with a plurality of first openings 18a for exposing the second electrode portion 17, and the light-emitting unit 13 is at least partially disposed in the first opening 18a. Specifically, the isolation layer 18 may be a pixel definition layer PDL, or other insulating film layer, and the isolation layer 18 is used to insulate adjacent second electrode portions 17 from each other, and / or to isolate the conductive portion 121 from the second electrode portion 17, so as to insulate the two.

[0118] like Figures 4 to 7As shown, in one embodiment, the orthographic projection of the partition structure 12 on the substrate 11 is located outside the orthographic projection of the first opening 18a on the substrate 11. In this way, the partition structure 12 can be prevented from limiting the light output angle of the light emitting unit 13.

[0119] In some embodiments, the isolation layer 18 is made of an inorganic material. In a specific example, the isolation layer 18 includes silicon nitride. In this way, the isolation layer 18 can isolate water vapor and oxygen, thereby improving the packaging reliability of the display panel 10.

[0120] like Figures 4 to 7 As shown, in one embodiment, it further includes a packaging structure layer 19, which is arranged on a side of the light-emitting unit 13 away from the substrate 11, and the packaging structure layer 19 covers the multiple light-emitting units 13, the partition structure 12 and the touch electrode layer 15;

[0121] Therefore, the touch electrode layer 15 is located inside the packaging structure layer 19 , so that the display panel 10 has better flatness, is thinner and more flexible, and can be applied to sliding screens and curling screens, thereby expanding the application range of the display panel 10 .

[0122] like Figures 4 to 7 As shown, in one embodiment, the encapsulation structure layer 19 includes a first encapsulation layer 191, a second encapsulation layer 192 and a third encapsulation layer 193 which are sequentially stacked in a direction away from the substrate 11. In a specific example, the first encapsulation layer 191 and the third encapsulation layer 193 are inorganic encapsulation layers, and the second encapsulation layer 192 is an organic encapsulation layer. Thus, the display panel 10 can be protected by stacking inorganic layers and organic layers. Inorganic materials generally have good compactness and can isolate water vapor and oxygen. Organic materials have flexible characteristics. The use of organic materials as a layer of the second encapsulation layer 192 can buffer stress from the outside, prevent the display panel 10 from being affected by external stress and affect the display effect. At the same time, the risk of encapsulation failure caused by fracture of the inorganic layer can be reduced.

[0123] like Fig. 9 As shown, according to another aspect of the present application, a method for manufacturing a display panel 10 is provided, and the manufacturing method includes:

[0124] S1, providing a substrate 11;

[0125] S2. A plurality of light-emitting units 13 and a partition structure 12 are formed on one side of the substrate 11. The partition structure 12 defines a plurality of partition openings 12a. The plurality of light-emitting units 13 are correspondingly disposed in the plurality of partition openings 12a.

[0126] S3, forming an electrode material layer on a side of the light-emitting unit 13 facing away from the substrate 11, wherein the electrode material layer covers the plurality of light-emitting units 13 and the partition structure 12;

[0127] S4 , patterning the electrode material layer to obtain a plurality of first electrode portions 14 corresponding to the plurality of light-emitting units 13 , and a touch electrode layer 15 disposed on a surface of the partition structure 12 facing away from the substrate 11 .

[0128] The manufacturing method of the display panel 10 provided in the embodiment of the present application is as follows: an electrode material layer is formed on the side of the light-emitting unit 13 away from the substrate 11, and the electrode material layer covers the light-emitting unit 13 and the partition structure 12; the electrode material layer is patterned to obtain a plurality of first electrode portions 14 corresponding to the plurality of light-emitting units 13, and a touch electrode layer 15 arranged on the surface of the partition structure 12 away from the substrate 11. That is, the plurality of first electrode portions 14 and the touch electrode layer 15 can be manufactured simultaneously. Thus, compared with the display panel 10 using the On-Cell technology, on the one hand, the number of film layers of the touch module can be reduced, the amount of mask used and the number of alignment times can be reduced, thereby reducing the probability of the light-emitting unit 13 being blocked due to mask alignment deviation, improving the display effect of the display panel 10, and reducing the manufacturing process, improving the manufacturing efficiency, and reducing the manufacturing cost; on the other hand, the thickness of the display panel 10 can be reduced, which is conducive to the thinness of the display panel 10.

[0129] like Fig.10 As shown, in one embodiment, the manufacturing method further includes:

[0130] S5. Forming a packaging structure layer 19 on a side of the light-emitting unit 13 away from the substrate 11 , wherein the packaging structure layer 19 covers the plurality of light-emitting units 13 , the partition structure 12 , and the touch electrode layer 15 .

[0131] Thus, the touch electrode layer 15 is located inside the packaging structure layer 19, so that the display panel 10 has better flatness, is thinner and more flexible, and can be applied to sliding screens and rolling screens, thereby expanding the application range of the display panel 10. In addition, the packaging effect of the display panel 10 can be improved, and the reliability of the display panel 10 can be improved.

[0132] like Fig.11 As shown, according to another aspect of the present application, a display device 1 is provided, comprising a display panel 10 in any one of the above embodiments, thereby improving the display effect of the display device 1, reducing the manufacturing cost of the display device 1, and facilitating the thinning of the display device 1.

[0133] The display device 1 can be a laptop computer, a mobile phone, a wireless device, a personal digital assistant (PDA), a handheld or portable computer, a GPS receiver / navigator, a camera, an MP4 video player, a camcorder, a game console, a watch, a clock, a calculator, a TV monitor, a flat-panel display, a computer monitor, a car display (e.g., an odometer display, etc.), a navigator, a cockpit controller and / or display, a display of a camera view (e.g., a display of a rearview camera in a vehicle), an electronic photo, an electronic billboard or sign, a projector, etc.

[0134] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0135] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A display panel, characterized in that: include: substrate; A partition structure is disposed on one side of the substrate, and the partition structure defines a plurality of partition openings; A plurality of light-emitting units are correspondingly arranged in the plurality of partition openings; A plurality of first electrode portions, corresponding to the plurality of light-emitting units, each of the first electrode portions being located at a side of the corresponding light-emitting unit away from the substrate; A touch electrode layer is disposed on a side of the partition structure away from the substrate, and the touch electrode layer is disposed in the same layer as the plurality of first electrode portions and is electrically insulated.

2. The display panel according to claim 1, characterized in that: The touch electrode layer includes a plurality of touch electrode blocks arranged at intervals; Optionally, the orthographic projection of the touch electrode block on the substrate is in a grid shape; Optionally, the plurality of touch electrode blocks are arranged in rows along a first direction, and arranged in columns along a second direction intersecting the first direction; and both the first direction and the second direction are perpendicular to a thickness direction of the substrate.

3. The display panel according to claim 1, characterized in that: The touch electrode layer includes a plurality of touch electrode units which are spaced apart and electrically insulated, and the touch electrode units include a first touch electrode and a second touch electrode; the first touch electrode and the second touch electrode are spaced apart and electrically insulated; one of the first touch electrode and the second touch electrode is a transmitting electrode, and the other is a receiving electrode; Optionally, there are a plurality of first touch electrodes, the plurality of first touch electrodes are arranged at intervals, and there is one second touch electrode, which is located between adjacent first touch electrodes. Optionally, the second touch electrode includes a second electrode trunk extending along the first direction, and a second electrode branch arranged on at least one side of the second electrode trunk along the second direction, and the second electrode branch is electrically connected to the second electrode trunk; the second electrode trunk is located between adjacent first touch electrodes, and the second electrode branch is located between adjacent first touch electrodes; the first direction intersects with the second direction, and the first direction and the second direction are both perpendicular to the thickness direction of the substrate; Optionally, there are multiple second electrode branches, and the multiple second electrode branches are arranged at intervals along the first direction; Optionally, the second electrode branches located on both sides of the second electrode trunk along the second direction are staggered in the first direction; Optionally, the orthographic projection of the first touch electrodes on the substrate is in a grid shape; Optionally, the orthographic projection of the second touch electrodes on the substrate is in a grid shape.

4. The display panel according to claim 1, characterized in that: The display panel also includes a plurality of touch lines; The plurality of touch control wirings are disposed in the same layer as the first electrode portion, and the plurality of touch control wirings are electrically connected to the touch control electrode layer.

5. The display panel according to claim 1, characterized in that: The display panel includes a display area and a non-display area surrounding at least a portion of the display area; the partition structure includes a first portion located in the display area and a second portion located in the non-display area; the plurality of touch lines are located on a side of the second portion away from the substrate, and the touch electrode layer is located on a surface of the first portion on a side away from the substrate; the touch lines are electrically connected to the touch electrode layer; Optionally, the plurality of touch lines are arranged in the same layer as the touch electrode layer.

6. The display panel according to claim 1, characterized in that: The touch electrode layer covers at least a portion of a surface of the partition structure that is away from the substrate; Optionally, the partition structure includes a conductive portion, and the first electrode portion is electrically connected to the conductive portion; Optionally, the partition structure further includes a blocking portion disposed on a side of the conductive portion away from the substrate, and an orthographic projection of the conductive portion on the substrate is located within an orthographic projection of the blocking portion on the substrate; the touch electrode layer is located on a side of the blocking portion away from the conductive portion; Optionally, the orthographic projection of the touch electrode layer on the substrate is located within the orthographic projection of the conductive portion on the substrate; Optionally, the orthographic projection of the touch electrode layer on the substrate is located within the orthographic projection of the blocking portion on the substrate; Optionally, the material of the blocking portion includes insulating material; Optionally, the material of the blocking portion includes a conductive material; Optionally, the light-emitting unit includes an organic light-emitting layer, and the light-emitting unit further includes at least one of a hole injection layer, a hole transport layer, an electron transport layer, and an electron injection layer; there is a distance between the light-emitting unit and the conductive portion; Optionally, the display panel further comprises a plurality of second electrode portions arranged at intervals, the plurality of second electrode portions correspond to the plurality of light emitting units one by one, and the second electrode portions are located on a side of the corresponding light emitting unit close to the substrate; Optionally, the display panel further includes an isolation layer, which is disposed on a side of the partition structure close to the substrate, and is configured as an insulating film layer; the isolation layer is provided with a plurality of first openings for exposing the second electrode portion, and the light-emitting unit is at least partially disposed in the first opening; Optionally, the orthographic projection of the partition structure on the substrate is located at the periphery of the orthographic projection of the first opening on the substrate.

7. The display panel according to claim 1, characterized in that: It also includes a packaging structure layer, which is arranged on a side of the light-emitting unit away from the substrate, and covers the multiple light-emitting units, the partition structure and the touch electrode layer; Optionally, the encapsulation structure layer comprises a first encapsulation layer, a second encapsulation layer and a third encapsulation layer which are sequentially stacked in a direction away from the substrate; Optionally, the first encapsulation layer and the third encapsulation layer are inorganic encapsulation layers, and the second encapsulation layer is an organic encapsulation layer.

8. A method for manufacturing a display panel, characterized in that: include: providing a substrate; A plurality of light-emitting units and a partition structure are formed on one side of the substrate, wherein the partition structure defines a plurality of partition openings; A plurality of light-emitting units are correspondingly arranged in the plurality of partition openings; forming an electrode material layer on a side of the light-emitting unit away from the substrate, wherein the electrode material layer covers the plurality of light-emitting units and the partition structure; The electrode material layer is patterned to obtain a plurality of first electrode portions corresponding to the plurality of light-emitting units, and a touch electrode layer disposed on a surface of the partition structure facing away from the substrate.

9. The manufacturing method according to claim 8, characterized in that: The production method further comprises: A packaging structure layer is formed on a side of the light emitting unit away from the substrate, and the packaging structure layer covers the plurality of light emitting units, the partition structure and the touch electrode layer.

10. A display device, characterized in that: Comprising the display panel according to any one of claims 1 to 7.

Images