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 includes: a substrate; the partition structure is arranged on the substrate; the partition structure is enclosed to form a partition opening; the light-emitting unit is arranged on one side of the substrate, and at least part of the light-emitting unit is arranged in the partition opening; the first magnetic induction layer is arranged on one side, close to the substrate, of the partition structure; the second magnetic induction layer is arranged on the side, away from the substrate, of the partition structure. The display panel and the display device are light and thin, and the process complexity and the manufacturing cost of the display device are reduced.

Description

Technical Field

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

[0002] In order to improve the handwriting experience, in some display devices, on the basis of providing a capacitive touch detection film layer, an electromagnetic resonance (EMR) detection film layer for detecting an electromagnetic pen is also provided.

[0003] In related technologies, an electromagnetic film layer is usually added to the back of a display panel in an external hanging manner. In this way, it is not conducive to realizing the thinning and lightening of the display device, and at the same time, it is not conducive to reducing the manufacturing cost of the display device. Summary of the Invention

[0004] Based on this, it is necessary to provide a display panel, a manufacturing method thereof, and a display device, which are conducive to realizing the thinning and lightening of the display device, and at the same time reducing the manufacturing cost of the display device.

[0005] An embodiment of the first aspect of the present application provides a display panel, including a substrate, a partition structure, a light-emitting unit, a first magnetic induction layer, and a second magnetic induction layer. The partition structure is disposed on one side of the substrate, and the partition structure encloses a partition opening; the light-emitting unit is disposed on one side of the substrate, and at least part of the light-emitting unit is disposed in the partition opening; the first magnetic induction layer is disposed on the side of the partition structure close to the substrate; the second magnetic induction layer is disposed on the side of the partition structure away from the substrate.

[0006] In some embodiments, the light-emitting unit includes a first electrode portion, a light-emitting functional portion, and a second electrode portion stacked in a direction away from the substrate, and the first magnetic induction layer is disposed on the same layer as the first electrode portion.

[0007] In some embodiments, the first magnetic induction layer includes a plurality of first magnetic induction electrodes spaced apart along a second direction, the first magnetic induction electrodes extend along a first direction, the first magnetic induction electrodes are disposed on the same layer as the first electrode portion, the first direction intersects the second direction, and both the first direction and the second direction are perpendicular to the thickness direction of the substrate.

[0008] In some embodiments, the second magnetic induction layer includes a plurality of second magnetic induction electrodes spaced apart along the first direction, the second magnetic induction electrodes are disposed on the side of the partition structure facing away from the substrate, and the second magnetic induction electrodes extend along the second direction.

[0009] In some embodiments, the partition structure includes an isolation body and a blocking portion disposed on a side of the isolation body away from the substrate. The blocking portion includes an insulating material, and the second magnetic induction layer is disposed on a surface of the blocking portion away from the substrate.

[0010] In some embodiments, a positive projection of the isolation body on the substrate is located within a positive projection of the blocking portion on the substrate.

[0011] In some embodiments, the partition structure further includes a bearing portion disposed on a side of the isolation body close to the substrate. A positive projection of the isolation body on the substrate is located within a positive projection of the bearing portion on the substrate.

[0012] In some embodiments, the isolation body and / or the bearing portion includes a conductive material, and the second electrode portion is overlapped with the conductive material.

[0013] In some embodiments, the display panel further includes a pixel definition layer disposed on a side of the partition structure close to the substrate. At least a portion of the pixel definition layer covers the first magnetic induction layer. The pixel definition layer includes a plurality of first openings, and at least a portion of the light-emitting functional portion is located within the first openings.

[0014] In some embodiments, a positive projection of the first opening on the substrate is located within a positive projection of the partition opening on the substrate.

[0015] In some embodiments, the pixel definition layer completely covers the first magnetic induction layer.

[0016] In some embodiments, a positive projection of the first magnetic induction layer on the substrate is located within a positive projection of the partition structure on the substrate.

[0017] In some embodiments, a positive projection of the second magnetic induction layer on the substrate is located within a positive projection of the partition structure on the substrate.

[0018] In some embodiments, the display panel further includes a first electromagnetic coil driving circuit, a first trace, a second electromagnetic coil driving circuit, and a second trace. The first magnetic induction electrode is electrically connected to the first electromagnetic coil driving circuit through the first trace, and the second magnetic induction electrode is electrically connected to the second electromagnetic coil driving circuit through the second trace.

[0019] In some embodiments, the first magnetic induction electrode and the first trace are disposed on the same layer.

[0020] In some embodiments, the second magnetic induction electrode and the second trace are disposed on the same layer.

[0021] In some embodiments, the first magnetic induction layer further includes a plurality of first breakpoints disposed between adjacent first magnetic induction electrodes.

[0022] In some embodiments, the second magnetic induction layer further includes a plurality of second breakpoints disposed between adjacent second magnetic induction electrodes.

[0023] In some embodiments, the display panel further includes a first encapsulation layer disposed on a side of the light-emitting unit facing away from the substrate.

[0024] In some embodiments, the first encapsulation layer covers the light-emitting unit, the second magnetic induction layer, and the partition structure.

[0025] In some embodiments, the first encapsulation layer includes a plurality of first encapsulation portions disposed at intervals, the first encapsulation portions are disposed in one-to-one correspondence with the light-emitting units, and the first encapsulation portions encapsulate the corresponding light-emitting units.

[0026] In some embodiments, the display panel further includes a second encapsulation layer, and the second encapsulation layer covers the first encapsulation layer.

[0027] In some embodiments, the display panel further includes a second encapsulation layer, and the second encapsulation layer covers the first encapsulation portion, the second magnetic induction layer, and the partition structure.

[0028] In some embodiments, the display panel further includes a third encapsulation layer, and the third encapsulation layer covers the second encapsulation layer.

[0029] In some embodiments, the first encapsulation layer and the third encapsulation layer are inorganic film layers, and the second encapsulation layer is an organic film layer.

[0030] In some embodiments, the display panel further includes a capacitive touch layer disposed on a side of the light-emitting unit facing away from the substrate, and the capacitive touch layer includes a first touch sensing electrode and a second touch sensing electrode that are insulated from each other.

[0031] An embodiment of the second aspect of the present application provides a display device, including the display panel described in the first aspect.

[0032] An embodiment of the third aspect of the present application provides a method for manufacturing a display panel, including:

[0033] Providing a substrate;

[0034] Forming a first magnetic induction layer, a partition structure, and a light-emitting unit on one side of the substrate, wherein the partition structure encloses a partition opening, at least part of the light-emitting unit is located in the partition opening, and the first magnetic induction layer is located on a side of the partition structure close to the substrate;

[0035] A second magnetic induction layer is formed on a side of the partition structure facing away from the substrate.

[0036] In some embodiments, the light-emitting unit includes a first electrode portion, a light-emitting functional portion, and a second electrode portion that are stacked in a direction away from the substrate. The steps of forming the first magnetic induction layer, the light-emitting unit, and the partition structure on one side of the substrate include:

[0037] Form the first magnetic induction layer and the first electrode portion on one side of the substrate;

[0038] Form a partition structure on one side of the first magnetic induction layer and the first electrode portion;

[0039] Form the light-emitting functional portion and the second electrode portion within the partition opening.

[0040] In the display panel of the present application, a first magnetic induction layer is provided between the partition structure and the substrate, and a second magnetic induction layer is provided on a side of the partition structure facing away from the substrate, thereby integrating an electromagnetic touch control structure inside the display panel. An external electromagnetic pen can thus achieve the electromagnetic touch control function of the display panel through this electromagnetic touch control structure. Compared with the related art that uses an external hanging method, the display panel of the present application has a thinner thickness, which is beneficial to the thinning of the display panel and the display device. At the same time, since the electromagnetic touch control structure is integrated inside the display panel, the production of the first magnetic induction layer and the second magnetic induction layer can be completed while manufacturing the display panel, and the step of externally hanging the electromagnetic touch control structure outside the display panel can be omitted, which is further beneficial to reducing the process complexity and manufacturing cost of the display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 is a schematic structural diagram of a display device in the related art;

[0042] Figure 2 is a top view structural diagram of the display panel according to an embodiment of the present application;

[0043] Figure 3 is Figure 2 an enlarged structural diagram at M in

[0044] Figure 4 is Figure 3 one of the sectional structural diagrams along A-A in

[0045] Figure 5 is Figure 3 another sectional structural diagram along A-A in

[0046] Figure 6 is Figure 3 yet another sectional structural diagram along A-A in

[0047] Figure 7 Another schematic cross-sectional structure along A-A in Figure 3 ;

[0048] Figure 8 Another schematic cross-sectional structure along A-A in Figure 3 ;

[0049] Figure 9 Schematic flow chart of the manufacturing method of the display panel according to the embodiment of the present application;

[0050] Figures 10a - 10d Schematic structural diagram of some steps in the manufacturing method of the display panel according to the embodiment of the present application. Detailed implementation manners

[0051] For the convenience of understanding the present application, the present application will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present application are shown 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, these embodiments are provided to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0052] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs. The terms used in the description of the present application in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0053] When describing the positional relationship, unless otherwise specified, when an element such as a layer, film or substrate 110 is referred to as being "on" another element, it can be directly on the other element or there can also be intermediate 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 intermediate elements. It can also be 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 also be one or more intermediate elements.

[0054] When using "including", "having" and "comprising" described herein, unless a clear limiting term is used, such as "only", "consisting of", etc., another component can also be added. Unless otherwise mentioned, terms in the singular form can include the plural form and should not be understood as having a quantity of one.

[0055] It should be understood that although terms such as "first" and "second" 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. For example, without departing from the scope of the present application, the first element may be referred to as the second element, and similarly, the second element may be referred to as the first element.

[0056] It should also be understood that when interpreting an element, although not explicitly described, the element is interpreted as including an error range, and this error range should be within the acceptable deviation range of a specific value determined by those skilled in the art. For example, "about", "approximately" or "substantially" may mean within one or more standard deviations, which is not limited herein.

[0057] In addition, in the specification, the phrase "schematic diagram of planar distribution" refers to the attached drawing when observing the target part from above, and the phrase "schematic cross-sectional view" refers to the attached drawing when observing the cross-section intercepted by vertically cutting the target part from the side.

[0058] In addition, the attached drawings are not drawn to a scale of 1:1, and the relative sizes of the various elements are only drawn by way of example in the attached drawings and not necessarily to the actual scale.

[0059] As Figure 1 shown, it is a schematic structural diagram of a display device in the related art. The display device 1 includes a display panel 2 and an electromagnetic film 3. The display panel 2 includes a substrate 21, a light-emitting unit 22 disposed on one side of the substrate 21, and a heat-dissipating back film 23 (SCF) disposed on the side of the substrate 21 facing away from the light-emitting unit 22. The electromagnetic film 3 generally includes a first magnetic induction layer and a second magnetic induction layer that are insulated. The electromagnetic film 3 is disposed on the side of the heat-dissipating back film 23 facing away from the substrate 21. That is, the electromagnetic film 3 is attached to the back of the display panel 2 in an externally attached manner to achieve the electromagnetic touch control function of the display device 1. In this way, it is not conducive to realizing the thinness and lightness of the display device, and at the same time, it is not conducive to reducing the manufacturing cost of the display device.

[0060] Based on the above problems, the present application proposes a display panel, a manufacturing method thereof, and a display device, which are conducive to realizing the thinness and lightness of the display panel and the display device and reducing the production cost.

[0061] An embodiment of the first aspect of the present application proposes a display panel 100. As Figure 2 、 Figure 3 and Figure 4As shown, the display panel 100 includes a substrate 110, a partition structure 120, a light-emitting unit 130, a first magnetic induction layer 140, and a second magnetic induction layer 150. The partition structure 120 is disposed on one side of the substrate 110, and the partition structure 120 encloses a partition opening 120a. The light-emitting unit 130 is disposed on one side of the substrate 110, and at least a part of the light-emitting unit 130 is disposed within the partition opening 120a. The first magnetic induction layer 140 is disposed on the side of the partition structure 120 close to the substrate 110, and the second magnetic induction layer 150 is disposed on the side of the partition structure 120 away from the substrate 110.

[0062] In this application, the display panel 100 includes a substrate 110, a partition structure 120, a light-emitting unit 130, a first magnetic induction layer 140, and a second magnetic induction layer 150. The display panel 100 may be an OLED display panel 100, and the substrate 110 may include a substrate and a driving circuit layer disposed on the substrate. Among them, 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 metal foil or polymer plastic, etc.

[0063] As Figure 3 and Figure 4 shown, the partition structure 120 is disposed on one side of the substrate 110, the partition structure 120 encloses a partition opening 120a, and at least a part of the light-emitting unit 130 is disposed within the partition opening 120a. Preferably, all the light-emitting units 130 are disposed within the partition opening 120a. In this way, crosstalk between light-emitting units 130 of different colors can be avoided. The light-emitting unit 130 is used to emit visible light of multiple different colors. The light-emitting unit 130 may include an OLED device, a Micro LED device, a Mini LED device, a QLED (Quantum Dots Light Emitting Diode Display) device, an inorganic light-emitting display device, etc., and this application does not limit this.

[0064] Further, the display panel 100 is further provided with a first magnetic induction layer 140 and a second magnetic induction layer 150. The first magnetic induction layer 140 and the second magnetic induction layer 150 are used to form a magnetic field, thereby forming an electromagnetic touch structure.

[0065] For the display panel 100 of the present application, a first magnetic induction layer 140 is provided between the partition structure 120 and the substrate 110, and a second magnetic induction layer 150 is provided on the side of the partition structure 120 facing away from the substrate 110, so that an electromagnetic touch structure is integrated inside the display panel 100, and an external electromagnetic pen can implement the electromagnetic touch function of the display panel through this electromagnetic touch structure. Compared with the external attachment method in the related art, the thickness of the display panel 100 of the present application is thinner, which is beneficial to the thin and light design of the display panel 100 and the display device. At the same time, since the electromagnetic touch structure is integrated inside the display panel 100, the first magnetic induction layer 140 and the second magnetic induction layer 150 can be fabricated while fabricating the functional layers of the display panel 100, and the step of externally attaching an electromagnetic touch structure to the display panel 100 can be omitted, which is beneficial to reducing the process complexity and manufacturing cost of the display device. In addition, since the driving frequency of electromagnetic touch is much higher than the driving frequency of the light-emitting unit 130, the display driving of the display panel does not interfere with the first magnetic induction layer 140 and the second magnetic induction layer 150, but is also beneficial to improving the reliability and sensitivity of electromagnetic touch. Fourthly, both the first magnetic induction layer 140 and the second magnetic induction layer 150 are provided on the light-emitting side of the substrate 110. Compared with the related art where the electromagnetic touch structure is provided on the backlight surface of the substrate 110, the electromagnetic touch structure of the present application is closer to the touch surface of the display panel 100, which is beneficial to increasing the magnetic flux, and further beneficial to improving the performance of electromagnetic touch.

[0066] In some embodiments, such as Figure 4As shown, the light-emitting unit 130 includes a first electrode portion 131, a light-emitting functional portion 132, and a second electrode portion 133 that are stacked in a direction away from the substrate 110. The first magnetic induction layer 140 is disposed on the same layer as the first electrode portion 131. In this embodiment, the light-emitting unit 130 includes the first electrode portion 131, the light-emitting functional portion 132, and the second electrode portion 133. The first electrode portion 131 may be the anode of the light-emitting unit 130, and the second electrode portion 133 may be the cathode of the light-emitting unit 130. The light-emitting functional portion 132 is the light-emitting part of the light-emitting unit 130. The light-emitting functional portion 132 includes a plurality of stacked film layers. Specifically, the plurality of film layers include a light-emitting layer (Emitting Layer, EML). Further, the plurality of film layers may further include one or more of a hole injection layer (Hole Injection Layer, HIL), a hole transport layer (Hole Transport Layer, HTL), an electron transport layer (Electron Transport Layer, ETL), an electron injection layer (Electron Injection Layer, EIL), an electron blocking layer (Electron Block Layer, EBL), a light-emitting auxiliary layer (prime layer), and a hole blocking layer (Hole Block Layer, HBL). The specific film layer structure can be flexibly set according to actual requirements.

[0067] In this embodiment, the first magnetic induction layer 140 is disposed on the same layer as the first electrode portion 131. In this way, the first magnetic induction layer 140 can be fabricated while fabricating the first electrode portion 131, which is beneficial to reducing the manufacturing process flow of the display panel 100, and further beneficial to reducing the manufacturing cost of the display panel 100 and improving the manufacturing yield.

[0068] In some embodiments, as Figure 2 and Figure 3 shown, the first magnetic induction layer 140 includes a plurality of first magnetic induction electrodes 141 spaced apart along the second direction X, and the first magnetic induction electrodes 141 extend along the first direction Y. The second magnetic induction layer 150 includes a plurality of second magnetic induction electrodes 151 spaced apart along the first direction Y. The second magnetic induction electrodes 151 are disposed on a side of the partition structure 120 away from the substrate 110, and the second magnetic induction electrodes 151 extend along the second direction X. The first direction Y intersects the second direction X, and both the first direction Y and the second direction X are perpendicular to the thickness direction of the substrate 110.

[0069] This embodiment presents the specific structures of the first magnetic induction layer 140 and the second magnetic induction layer 150. The first magnetic induction layer 140 includes a plurality of first magnetic induction electrodes 141 arranged at intervals along the second direction X, and the first magnetic induction electrodes 141 extend along the first direction Y. According to the electromagnetic effect, a magnetic field is generated when an electric current passes through a conductor. In this way, a plurality of stable magnetic fields arranged along the second direction X can be formed by the plurality of first magnetic induction electrodes 141. That is, the first magnetic induction electrodes 141 can divide the coordinates of the display panel 100 in the second direction X. Similarly, the second magnetic induction electrodes 151 can divide the coordinates of the display panel 100 in the first direction Y. The principle of the first magnetic induction layer 140 and the second magnetic induction layer 150 realizing the electromagnetic touch function is described below.

[0070] The orthographic projections of the first magnetic induction electrodes 141 and the second magnetic induction electrodes 142 in the thickness direction of the substrate 110 overlap, thus forming a plurality of overlapping points G. Each overlapping point G is both in the stable magnetic field of the first magnetic induction electrode 141 and in the stable magnetic field of the second magnetic induction electrode 151. That is, each overlapping point G contains both the coordinate in the second direction X and the coordinate in the first direction Y, so that the specific position of each overlapping point G on the display panel 100 can be obtained. When an external electromagnetic pen touches a certain overlapping point G, the magnetic field of the electromagnetic pen will interfere with the first magnetic induction electrode 141 and the second magnetic induction electrode 142, causing the magnetic flux of this overlapping point G to change. In this way, by detecting the change in the magnetic flux of the display panel 100, the touch position of the electromagnetic pen can be obtained, thereby realizing the electromagnetic touch function.

[0071] It should be noted that since the partition structure 120 is provided with partition openings 120a, at least part of the light-emitting units 130 are located within the partition openings 120a. Therefore, the partition structure 120 is a mesh structure. And the first magnetic induction electrodes 141 of the first magnetic induction layer 140 and the second magnetic induction electrodes 151 of the second magnetic induction layer 150 are respectively located on both sides in the thickness direction of the partition structure 120. Therefore, both the first magnetic induction layer 140 and the second magnetic induction layer 150 are also mesh structures.

[0072] In some embodiments, the first magnetic induction layer 140 further includes a plurality of first break points (not shown in the figure) provided between adjacent first magnetic induction electrodes 141. Since the first magnetic induction layer 140 is a mesh structure, in this embodiment, the formation process of the plurality of first magnetic induction electrodes 141 of the first magnetic induction layer 140 is to set a plurality of break points in the entire mesh first magnetic induction layer 140, thereby dividing a plurality of first magnetic induction electrodes 141.

[0073] Similarly, in some embodiments, the second magnetic induction layer 150 further includes a plurality of second break points (not shown in the figure) disposed between adjacent second magnetic induction electrodes 151. The process of forming the plurality of second magnetic induction electrodes 151 of the second magnetic induction layer 150 is to set a plurality of break points in the entire mesh-shaped second magnetic induction layer 150, thereby dividing the plurality of second magnetic induction electrodes 151.

[0074] Further, according to the different setting positions of the first break point and the second break point, the plurality of first magnetic induction electrodes 141 extend along the first direction Y and are arranged at intervals along the second direction X; the plurality of second magnetic induction electrodes 151 extend along the second direction X and are arranged at intervals along the first direction Y.

[0075] In some embodiments, as Figure 4 shown, the partition structure 120 includes an isolation body 121 and a blocking portion 122 disposed on a side of the isolation body 121 facing away from the substrate 110. The blocking portion 122 includes an insulating material, and the second magnetic induction electrode 151 of the second magnetic induction layer 150 is disposed on a surface of the blocking portion 122 away from the substrate 110. In this embodiment, the partition structure 120 includes an isolation body 121 and a blocking portion 122. The isolation body 121 and the blocking portion 122 are used to isolate the light-emitting functional portions 132 of different light-emitting units 130, so as to avoid the phenomenon of color mixing between different color materials. Further, the blocking portion 122 includes an insulating material, and the second magnetic induction electrode 151 is disposed on a surface of the blocking portion 122 away from the substrate 110. In this way, the blocking portion 122 is an insulating structure between the first magnetic induction layer 140 and the second magnetic induction layer 150. That is, there is no need to separately fabricate an insulating layer between the first magnetic induction layer 140 and the second magnetic induction layer 150, which is conducive to reducing the manufacturing process flow and cost of the display panel 100 and improving its manufacturing yield.

[0076] In some embodiments, as Figure 4 shown, the orthographic projection of the isolation body 121 on the substrate 110 is located within the orthographic projection of the blocking portion 122 on the substrate 110. That is, the edge of the blocking portion 122 extends beyond the edge of the isolation body 121 by a certain distance, thereby forming a roof structure between the bottom surface of the blocking portion 122 and the top surface of the isolation body 121. In this way, on the one hand, the partition structure 120 can be used for full-surface evaporation and lithography, so that the fabrication of the light-emitting functional portion and the second electrode portion can be completed without the aid of an FMM; on the other hand, during the evaporation process, it can be ensured that the light-emitting functional portions 132 are separated from each other, thereby reducing the probability of color crosstalk. On the third hand, it is also beneficial to improve the insulation performance of the blocking portion 122, which is conducive to improving the reliability of electromagnetic touch control.

[0077] In some embodiments, as Figure 5As shown, the partition structure 120 further includes a bearing portion 123 disposed on the side of the isolation body 121 close to the substrate 110, and the orthographic projection of the isolation body 121 on the substrate 110 is located within the orthographic projection of the bearing portion 123 on the substrate 110. On the one hand, the bearing portion 123 can support the isolation body 121 and the blocking portion 122, and on the other hand, it can also improve the bonding effect between the partition structure 120 and other film layers.

[0078] In some embodiments, as Figure 5 shown, the isolation body 121 includes a conductive material, and the second electrode portion 133 is overlapped with the conductive material of the isolation body 121. Since the isolation body 121 is conductive, a plurality of second electrode portions 133 are connected as a whole through the isolation body 121, which is beneficial to reducing the number of cathode traces, and thus beneficial to realizing a narrow border. In addition, the thickness of the isolation body 121 is relatively thick, which is also beneficial to reducing the impedance of the second electrode layer 133, thereby reducing the power consumption of the display panel 100.

[0079] In some embodiments, as Figure 5 shown, the bearing portion 123 includes a conductive material, and the second electrode portion 133 is overlapped with the conductive material of the bearing portion 123. Since the bearing portion 123 is conductive, a plurality of second electrode portions 133 are connected as a whole through the bearing portion 123, which is beneficial to reducing the number of cathode traces, and thus beneficial to realizing a narrow border. In addition, the edge of the bearing portion 123 extends beyond the edge of the isolation body 121, that is, the bearing portion 123 is closer to the light-emitting unit 130, which is also beneficial to improving the convenience of overlapping the second electrode portion 133 with the bearing portion 123.

[0080] In some embodiments, as Figure 5 shown, the isolation body 121 and the bearing portion 123 include a conductive material, and the second electrode portion 133 is overlapped with the conductive materials of the bearing portion 123 and the isolation body 121. In this way, on the one hand, it is beneficial to reducing the number of cathode traces, and thus beneficial to realizing a narrow border. On the second hand, the second electrode portion 133 can climb onto the bearing portion 123 and then be further electrically connected to the isolation body 121, thereby reducing the climbing angle of the second electrode portion 133, which is beneficial to improving the electrical connection stability between the second electrode portion 133 and the isolation body 121. On the third hand, the second electrode portion 133 is electrically connected to both the bearing portion 123 and the isolation body 121. In this way, even if there is a problem of poor contact between the second electrode portion 133 and the isolation body 121, the electrical connection relationship between the second electrode portion 133 and the partition structure 120 can still be ensured. Thus, electrical connection failure can be further prevented to improve the performance stability of the display panel 100.

[0081] In some embodiments, as Figure 4As shown, the display panel 100 further includes a pixel definition layer 160 disposed on the side of the partition structure 120 close to the substrate 110. At least a part of the pixel definition layer 160 covers the first magnetic induction layer 140. The pixel definition layer 160 includes a plurality of first openings 161, and at least a part of the light-emitting functional part 132 is located in the first openings 161.

[0082] This embodiment presents the positional relationship between the partition structure 120 and the pixel definition layer 160. A light-emitting unit 130 is disposed in the partition opening 120a of the partition structure 120, and at least a part of the light-emitting functional part 132 of the light-emitting unit 130 is located in the first opening 161. That is to say, in the thickness direction of the display panel 100, the first opening 161 and the partition opening 120a are oppositely disposed, and the first opening 161 is used to define the position of the light-emitting material of the light-emitting unit 130. The partition structure 120 is disposed at a non-opening position of the pixel definition layer 160, and the partition opening 120a is used for full-surface evaporation and photolithography. Optionally, in some embodiments, the orthographic projection of the first opening 161 on the substrate 110 is located within the orthographic projection of the partition opening 120a on the substrate 110. In this way, it is beneficial to improve the reliability of the partition structure 120 in partitioning adjacent light-emitting functional parts 132. In addition, at least a part of the pixel definition layer 160 covers the first magnetic induction layer 140. Therefore, the pixel definition layer 160 can also act as an insulating layer between the first magnetic induction layer 140 and the second magnetic induction layer 150, which is beneficial to improving the reliability of the magnetic induction function. As a preferred embodiment, the pixel definition layer 160 completely partially covers the first magnetic induction electrode 141 of the first magnetic induction layer 140.

[0083] In some embodiments, as Figure 4 and Figure 5 shown, the orthographic projection of the first magnetic induction layer 140 on the substrate 110 is located within the orthographic projection of the partition structure 120 on the substrate 110. For example, the orthographic projection of the first magnetic induction electrode 141 of the first magnetic induction layer 140 on the substrate 110 is located within the orthographic projection of the isolator 121 on the substrate 110. In this way, on the one hand, the partition structure 120 can completely cover the first magnetic induction electrode 141 of the first magnetic induction layer 140, which is beneficial to improving the insulation performance between the first magnetic induction layer 140 and the second magnetic induction layer 150, thereby improving the reliability of the magnetic induction function. On the other hand, the first magnetic induction electrode 141 will not form an obstruction to the light-emitting unit 130, which is beneficial to improving the light extraction rate of the light-emitting unit 130.

[0084] In some embodiments, the orthographic projection of the second magnetic induction layer 150 on the substrate 110 is located within the orthographic projection of the partition structure 120 on the substrate 110. For example, the orthographic projection of the second magnetic induction electrode 151 of the second magnetic induction layer 150 on the substrate 110 is located within the orthographic projection of the isolation body 121 on the substrate 110. In this way, on the one hand, it is beneficial to improve the insulation performance between the first magnetic induction layer 140 and the second magnetic induction layer 150, thereby improving the reliability of the magnetic induction function. On the other hand, the second magnetic induction electrode 151 will not form an obstruction to the light-emitting unit 130, thereby facilitating the improvement of the light extraction rate of the light-emitting unit 130.

[0085] In some embodiments, as Figure 2 shown, the display panel 100 further includes a first electromagnetic coil driving circuit 170, a first trace 171, a second electromagnetic coil driving circuit 180, and a second trace 172. The first magnetic induction electrode 141 is electrically connected to the first electromagnetic coil driving circuit 170 through the first trace 171, and the second magnetic induction electrode 151 is electrically connected to the second electromagnetic coil driving circuit 180 through the second trace 172. In this way, the first electromagnetic coil driving circuit 170 can provide an electromagnetic driving detection signal to the first magnetic induction electrode 141 through the first trace 171, so that the first magnetic induction electrode 141 generates a magnetic field and obtains the magnetic induction coordinates of the display panel 100 in the second direction X. The second electromagnetic coil driving circuit 180 provides an electromagnetic driving detection signal to the second magnetic induction electrode 151 through the second trace 172, so that the second magnetic induction electrode 151 generates a magnetic field and obtains the magnetic induction coordinates of the display panel 100 in the first direction Y. When the electromagnetic pen touches the display panel 100, the first electromagnetic coil driving circuit 170 and the second electromagnetic coil driving circuit 180 can obtain the X coordinate and the Y coordinate of the position where the magnetic flux changes, and then realize the electromagnetic touch control function.

[0086] It should be noted that there are various connection methods between the first magnetic induction electrode 141 and the first electromagnetic coil driving circuit 170. For example, each first magnetic induction electrode 141 is connected to the first electromagnetic coil driving circuit 170 through a first trace 171 to form a closed loop; or, the two ends of two or more first magnetic induction electrodes 141 can be first connected in parallel through the first trace 171, and the other end is then connected to the first electromagnetic coil driving circuit 170 through the first trace 171 to form a closed loop, etc. Similarly, there are various connection methods between the second magnetic induction electrode 151 and the second electromagnetic coil driving circuit 180. For example, each second magnetic induction electrode 151 is connected to the second electromagnetic coil driving circuit 180 through a second trace 172 to form a closed loop; or, the two ends of two or more second magnetic induction electrodes 151 can be first connected in parallel through the second trace 172, and the other end is then connected to the second electromagnetic coil driving circuit 180 through the second trace 172 to form a closed loop, etc. The present application does not limit this.

[0087] In some embodiments, as Figure 4 shown, the first magnetic induction electrode 141 and the first trace 171 are disposed on the same layer. In this way, on the one hand, the process can be reduced, and on the other hand, it is beneficial to improve the convenience of connecting the first trace 171 and the first magnetic induction electrode 141.

[0088] In some embodiments, as Figure 3 shown, the second magnetic induction electrode 151 and the second trace 172 are disposed on the same layer. In this way, on the one hand, the process can be reduced, and on the other hand, it is beneficial to improve the convenience of connecting the second trace 172 and the second magnetic induction electrode 151.

[0089] In some embodiments, as Figure 6 shown, the display panel 100 further includes a first encapsulation layer 181 disposed on a side of the light-emitting unit 130 facing away from the substrate 110. The first encapsulation layer 181 covers the light-emitting unit 130, the second magnetic induction layer 150, and the partition structure 120. The first encapsulation layer 181 is in the form of a full-surface encapsulation, which is not only correspondingly disposed on each light-emitting unit 130, but also disposed on the partition structure 140 and the second magnetic induction layer 150. In this way, it is beneficial to reduce the process difficulty and improve the sealing performance of the display panel 100.

[0090] Furthermore, as Figure 6 shown, the display panel 100 further includes a second encapsulation layer 182, and the second encapsulation layer 182 covers the first encapsulation layer 181. In this embodiment, by providing the second encapsulation layer 182 with full-surface encapsulation, on the one hand, it is beneficial to improve the planarization of the display panel 100, and on the other hand, it is beneficial to further improve the sealing effect on the second magnetic induction electrode 151 and the light-emitting unit 130.

[0091] In some embodiments, as Figure 7 shown, the first encapsulation layer 181 includes a plurality of first encapsulation portions 181a arranged at intervals. The first encapsulation portions 181a are arranged in one-to-one correspondence with the light-emitting units 130, and each first encapsulation portion 181a encapsulates the corresponding light-emitting unit 130. In this embodiment, the first encapsulation layer 181 includes a plurality of first encapsulation portions 181a, so that independent encapsulation of each light-emitting unit 130 can be realized, which is beneficial to improving the reliability of encapsulation.

[0092] Furthermore, as Figure 7 shown, the display panel 100 further includes a second encapsulation layer 182, and the second encapsulation layer 182 covers the first encapsulation portions 181a, the second magnetic induction layer 150, and the partition structure 120. In this embodiment, by providing the second encapsulation layer 182 with a whole-surface encapsulation, the first encapsulation portions 181a, the second magnetic induction layer 150, and the light-emitting units 130 can be encapsulated and flattened, which is beneficial to improving the reliability of encapsulation.

[0093] In some embodiments, as Figure 6 and Figure 7 shown, the display panel 100 further includes a third encapsulation layer 183, and the third encapsulation layer 183 covers the second encapsulation layer 182. In this way, it is beneficial to further improve the sealing effect on the second magnetic induction electrode 151 and the light-emitting units 130.

[0094] In some embodiments, the first encapsulation layer 181 and the third encapsulation layer 183 are inorganic film layers, and the second encapsulation layer 182 is an organic film layer. Among them, the inorganic film layer mainly plays a role in isolating moisture and air, and the organic film layer is mainly used to provide flexibility.

[0095] In some embodiments, as Figure 8 shown, the display panel 100 further includes a capacitive touch layer 190 disposed on the side of the light-emitting units 130 away from the substrate 110. The capacitive touch layer 190 includes a first touch sensing electrode 191 and a second touch sensing electrode 192 that are insulated from each other. In this embodiment, the display panel 100 is further integrated with the capacitive touch layer 190, so that the capacitive touch function and the electromagnetic touch function can be realized simultaneously, which is beneficial to improving the functional diversity of the display panel 100. In addition, since the anti-interference ability of the capacitive touch layer 190 is slightly weaker than that of the first magnetic induction layer 140 and the second magnetic induction layer 150. Therefore, in order to prevent the first magnetic induction layer 140 and the second magnetic induction layer 150 from shielding the capacitive touch layer 190, in this embodiment, the capacitive touch layer 190 is located on the side of the second magnetic induction layer 150 away from the substrate 110.

[0096] It should be noted that generally, a planarization layer 200 is further provided between the capacitive touch layer 190 and the third encapsulation layer 183. One of the first touch sensing electrodes 191 and the second touch sensing electrodes 192 of the capacitive touch layer 190 is a touch driving electrode, and the other is a touch sensing electrode. Moreover, the film structure of the capacitive touch layer 190 is the same as that of the prior art, and will not be elaborated here.

[0097] An embodiment of the second aspect of the present application provides a display device, including the display panel 100 described in the first aspect. Among them, the display device can be, for example, any product or component with a display function such as a monitor, a television, a digital camera, a mobile phone, a tablet computer, a navigator, etc.

[0098] The display device in the embodiment of the present application uses the display panel 100 described in the first aspect. Among them, an electromagnetic touch structure is integrated inside the display panel 100. In this way, on the one hand, it is beneficial to realize the thinning of the display device. On the other hand, it is beneficial to reduce the process complexity and manufacturing cost of the display device. On the third hand, it is beneficial to improve the reliability and sensitivity of electromagnetic touch. On the fourth hand, it is beneficial to increase the magnetic flux, and thus is beneficial to further improve the performance of electromagnetic touch.

[0099] As Figure 9 shown, an embodiment of the third aspect of the present application provides a manufacturing method of a display panel 100, including:

[0100] Providing a substrate 110;

[0101] Forming a first magnetic induction layer 140, a partition structure 120, and a light-emitting unit 130 on one side of the substrate 110. The partition structure 120 encloses a partition opening 120a, and at least part of the light-emitting unit 130 is located in the partition opening 120a. The first magnetic induction layer 140 is located on the side of the partition structure 120 close to the substrate 110;

[0102] Forming a second magnetic induction layer 150 on the side of the partition structure 120 facing away from the substrate 110.

[0103] The present application also provides a method for manufacturing the display panel 100 described in the first aspect. First, as Figure 10a shown, the substrate 110 of the display panel 100 is formed. The substrate 110 may include, for example, a substrate and a driving circuit layer located on the substrate. Then, as Figure 10d shown, a first magnetic induction layer 140, a partition structure 120, and a light-emitting unit 130 are formed on one side of the substrate 110. Among them, the partition structure 120 encloses a partition opening 120a, and at least part of the light-emitting unit 130 is located in the partition opening 120a. The first magnetic induction layer 140 is located on the side of the partition structure 120 close to the substrate 110. Finally, as Figure 2As shown, a second magnetic induction layer 150 is formed on the side of the partition structure 120 away from the substrate 110. In the display panel 100 manufactured by the manufacturing method of the display panel 100 according to the present application, an electromagnetic touch control structure is integrated inside. In this way, on the one hand, it is beneficial to realize the thinning of the display device. On the other hand, it is beneficial to reduce the process complexity and manufacturing cost of the display device. On the third hand, it is beneficial to improve the reliability and sensitivity of electromagnetic touch control. On the fourth hand, it is beneficial to increase the magnetic flux, and thus it is beneficial to further improve the performance of electromagnetic touch control.

[0104] In some embodiments, the light-emitting unit 130 includes a first electrode portion 131, a light-emitting functional portion 132, and a second electrode portion 133 that are stacked in a direction away from the substrate 110. The steps of forming the first magnetic induction layer 140, the light-emitting unit 130, and the partition structure 120 on one side of the substrate 110 include:

[0105] Form the first magnetic induction layer 140 and the first electrode portion 131 on one side of the substrate 110;

[0106] Form the partition structure 120 on one side of the first magnetic induction layer 140 and the first electrode portion 131;

[0107] Form the light-emitting functional portion 132 and the second electrode portion 133 in the partition opening 120a.

[0108] Since the first magnetic induction layer 140 is located on the side of the partition structure 120 close to the substrate 110. Therefore, in this embodiment, after the substrate 110 of the display panel 100 is formed, the first magnetic induction layer 140 can be formed synchronously with other processes of the display panel 100. Specifically, the first magnetic induction layer 140 can be completed synchronously with part of the manufacturing processes of the light-emitting unit 130. As Figure 2 shown, the light-emitting unit 130 includes a first electrode portion 131a, a light-emitting functional portion 132, and a second electrode portion 133. The first magnetic induction layer 140 can be manufactured synchronously with the first electrode portion 131a. Therefore, the specific steps of "forming the first magnetic induction layer 140, the partition structure 120, and the light-emitting unit 130 on one side of the substrate 110" are: as Figure 10b shown, first form a first electrode layer (not shown in the figure) on the substrate 110, and then pattern the first electrode layer to form the first electrode portion 131a and the first magnetic induction layer 140 respectively. Then, as Figure 10c and 10d shown, form the partition structure 120 on one side of the first electrode portion 131a and the first magnetic induction layer 140. Usually, the display panel 100 is also provided with a pixel definition layer 160, and the partition structure 120 can be formed on the pixel definition layer 160. Finally, as Figure 10dAs shown, the light-emitting functional portion 132 and the second electrode portion 133 of the light-emitting unit 130 are formed by means of the partition structure 120.

[0109] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, 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, it should be considered as the scope described in this specification.

[0110] The above-described embodiments only represent several implementation manners of the present application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, 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 appended claims.

Claims

1. A display panel, characterized in that, Comprising: A substrate; A partition structure disposed on one side of the substrate, the partition structure enclosing a partition opening; A light-emitting unit disposed on one side of the substrate, at least a part of the light-emitting unit being disposed within the partition opening; A first magnetic induction layer disposed on the side of the partition structure close to the substrate; A second magnetic induction layer disposed on the side of the partition structure away from the substrate.

2. The display panel according to claim 1, characterized in that, The light-emitting unit includes a first electrode portion, a light-emitting functional portion, and a second electrode portion stacked in a direction away from the substrate, and the first magnetic induction layer is disposed on the same layer as the first electrode portion.

3. The display panel according to claim 2, characterized in that, The first magnetic induction layer includes a plurality of first magnetic induction electrodes spaced apart along a second direction, the first magnetic induction electrodes extending along a first direction, the first magnetic induction electrodes being disposed on the same layer as the first electrode portion, the first direction intersecting the second direction, and both the first direction and the second direction being perpendicular to the thickness direction of the substrate; Optionally, the second magnetic induction layer includes a plurality of second magnetic induction electrodes spaced apart along the first direction, the second magnetic induction electrodes being disposed on the side of the partition structure facing away from the substrate, the second magnetic induction electrodes extending along the second direction; Optionally, the first magnetic induction layer further includes a plurality of first break points disposed between adjacent first magnetic induction electrodes; Optionally, the second magnetic induction layer further includes a plurality of second break points disposed between adjacent second magnetic induction electrodes.

4. The display panel according to claim 1, characterized in that, The partition structure includes an isolation body and a blocking portion disposed on the side of the isolation body facing away from the substrate, the blocking portion including an insulating material, and the second magnetic induction layer is disposed on the surface of the blocking portion away from the substrate; Optionally, the orthographic projection of the isolation body on the substrate is located within the orthographic projection of the blocking portion on the substrate; Optionally, the partition structure further includes a bearing portion disposed on the side of the isolation body close to the substrate, and the orthographic projection of the isolation body on the substrate is located within the orthographic projection of the bearing portion on the substrate; Optionally, the isolation body and / or the bearing portion includes a conductive material, and the second electrode portion is lapped with the conductive material; Optionally, the display panel further includes a pixel definition layer disposed on the side of the partition structure close to the substrate, at least a part of the pixel definition layer covering the first magnetic induction layer, the pixel definition layer including a plurality of first openings, and at least a part of the light-emitting functional portion being located within the first openings; Optionally, the orthographic projection of the first opening on the substrate is located within the orthographic projection of the partition opening on the substrate; Optionally, the pixel definition layer completely covers the first magnetic induction layer.

5. The display panel according to claim 1, characterized in that, The orthographic projection of the first magnetic induction layer on the substrate is located within the orthographic projection of the partition structure on the substrate; And / or, the orthographic projection of the second magnetic induction layer on the substrate is located within the orthographic projection of the partition structure on the substrate.

6. The display panel according to claim 3, characterized in that, The display panel further includes a first electromagnetic coil driving circuit, a first trace, a second electromagnetic coil driving circuit, and a second trace. The first magnetic induction electrode is electrically connected to the first electromagnetic coil driving circuit through the first trace, and the second magnetic induction electrode is electrically connected to the second electromagnetic coil driving circuit through the second trace; Optionally, the first magnetic induction electrode and the first trace are disposed on the same layer; Optionally, the second magnetic induction electrode and the second trace are disposed on the same layer.

7. The display panel according to claim 1, characterized in that, The display panel further includes a first encapsulation layer disposed on a side of the light-emitting unit away from the substrate; Optionally, the first encapsulation layer covers the light-emitting unit, the second magnetic induction layer, and the partition structure; Optionally, the first encapsulation layer includes a plurality of first encapsulation portions disposed at intervals, and the first encapsulation portions are disposed corresponding to the light-emitting units one by one, and the first encapsulation portions encapsulate the corresponding light-emitting units; Optionally, the display panel further includes a second encapsulation layer, and the second encapsulation layer covers the first encapsulation layer; Optionally, the display panel further includes a second encapsulation layer, and the second encapsulation layer covers the first encapsulation portion, the second magnetic induction layer, and the partition structure; Optionally, the display panel further includes a third encapsulation layer, and the third encapsulation layer covers the second encapsulation layer; Optionally, the first encapsulation layer and the third encapsulation layer are inorganic film layers, and the second encapsulation layer is an organic film layer; Optionally, the display panel further includes a capacitive touch layer disposed on a side of the light-emitting unit away from the substrate, and the capacitive touch layer includes a first touch sensing electrode and a second touch sensing electrode that are insulated from each other.

8. A display device, characterized in that, Including the display panel according to any one of claims 1 to 7.

9. A method for manufacturing a display panel, characterized in that, Including: Providing a substrate; Forming a first magnetic induction layer, a light-emitting unit, and a partition structure on one side of the substrate, wherein the partition structure encloses a partition opening, and at least part of the light-emitting units are disposed in the partition opening, and the first magnetic induction layer is located on a side of the partition structure close to the substrate; Forming a second magnetic induction layer on a side of the partition structure away from the substrate.

10. The method for manufacturing a display panel according to claim 9, characterized in that, The light-emitting unit includes a first electrode portion, a light-emitting functional portion, and a second electrode portion that are stacked in a direction away from the substrate. The step of forming the first magnetic induction layer, the light-emitting unit, and the partition structure on one side of the substrate includes: Forming the first magnetic induction layer and the first electrode portion on one side of the substrate; Forming a partition structure on one side of the first magnetic induction layer and the first electrode portion; Forming the light-emitting functional portion and the second electrode portion in the partition opening.

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