Functional module, display panel and display device

Abstract

The invention discloses a functional module, a display panel and a display device. The functional module comprises a substrate; the first functional layer is arranged on one side of the substrate, the first functional layer comprises a first touch electrode and an antenna unit, and the antenna unit is of a grid wiring structure; the second functional layer is arranged on the side, away from the first functional layer, of the substrate, the second functional layer comprises a second touch electrode, and the second touch electrode comprises a transparent material. According to the functional module, the display panel and the display device provided by the embodiment of the invention, the antenna units are concentrated on the first functional layer and are arranged on the same layer as the first touch electrodes, and the second touch electrodes arranged on the second functional layer are made of the transparent electrode material, so that the light transmittance of the functional module can be improved; finally, the display effect of the whole display device is improved.

Description

Technical Field

[0001] The present application relates to the technical field of electronic products, and particularly relates to a functional module, a display panel, and a display device. Background Art

[0002] In the prior art, a touch sensor for implementing a touch function and an antenna for implementing the propagation function of network and communication signals are integrated on an external substrate and attached to an image display device. In order to simultaneously implement the touch function and the signal propagation function, both the antenna and the touch sensor in the external substrate adopt a metal mesh structure. When the metal mesh structure overlaps with the pixel structure of the image display device, problems such as moiré patterns and graininess, which result in poor display effects, are likely to occur, leading to a decrease in the image quality of the image display device. Summary of the Invention

[0003] Embodiments of the present application provide a functional module, a display panel, and a display device, which can improve the light transmittance and thus improve the display effect.

[0004] In a first aspect, according to an embodiment of the present application, a functional module is provided. 1. A functional module includes: a substrate; a first functional layer disposed on one side of the substrate, the first functional layer including a first touch electrode and an antenna unit; a second functional layer disposed on the side of the substrate away from the first functional layer, the second functional layer including a second touch electrode, and the second touch electrode including a transparent electrode material.

[0005] According to an aspect of an embodiment of the present application, the antenna unit is a grid trace structure.

[0006] According to an aspect of an embodiment of the present application, both the first touch electrode and the antenna unit in the first functional layer are grid trace structures, and the first touch electrode and the antenna unit are spaced apart in the first functional layer.

[0007] According to an aspect of an embodiment of the present application, the grid trace structure is made of a metal material.

[0008] According to an aspect of an embodiment of the present application, the first functional layer includes a plurality of first touch electrodes spaced apart in the transverse direction, the first functional layer further includes a virtual electrode located between two adjacent first touch electrodes, and the antenna unit is located on one side of the virtual electrode in the longitudinal direction.

[0009] According to an aspect of an embodiment of the present application, each first touch electrode includes a plurality of sub-electrode blocks arranged longitudinally and connected to each other, and the virtual electrode and the antenna unit are disposed between two sub-electrode blocks arranged longitudinally.

[0010] According to an aspect of an embodiment of the present application, each virtual electrode includes virtual sub-blocks spaced apart in the longitudinal direction, and the virtual sub-blocks are disposed between two sub-electrode blocks arranged longitudinally.

[0011] According to one aspect of the embodiments of the present application, the area of the antenna unit is consistent with that of the virtual sub-block.

[0012] According to one aspect of the embodiments of the present application, the first touch electrode includes a transparent electrode material.

[0013] According to one aspect of the embodiments of the present application, the transparent electrode material includes indium tin oxide after crystallization treatment.

[0014] According to one aspect of the embodiments of the present application, the thickness of the transparent electrode material is 20nm - 50nm.

[0015] According to one aspect of the embodiments of the present application, the substrate is a transparent flexible film material.

[0016] According to one aspect of the embodiments of the present application, the transparent flexible film material includes one or more of cyclic olefin polymer, transparent polyimide, and polyethylene terephthalate.

[0017] According to one aspect of the embodiments of the present application, the functional module further includes a polarizer layer disposed on the side of the first functional layer or the second functional layer away from the substrate.

[0018] According to one aspect of the embodiments of the present application, the functional module further includes a first adhesive layer and a cover plate; the polarizer layer is located on the side of the second functional layer away from the substrate, and the cover plate is adhered to the polarizer layer through the first adhesive layer; or, the polarizer layer is located on the side of the first functional layer away from the substrate, and the cover plate is adhered to the second functional layer through the first adhesive layer.

[0019] In a second aspect, according to the embodiments of the present application, a display panel is provided, including: a light-emitting layer; a functional module as described in any of the first aspect embodiments; wherein, the polarizer layer is located on the side of the second functional layer away from the substrate, the display panel includes a second adhesive layer, and the side of the first functional layer of the functional module away from the substrate is adhered to the light-emitting layer through the second adhesive layer; or, the polarizer layer is located on the side of the first functional layer away from the substrate, and the light-emitting layer is located on the side of the polarizer layer away from the substrate.

[0020] According to one aspect of the embodiments of the present application, the light-emitting layer includes a plurality of light-emitting units arranged in an array, the light-emitting unit includes a light-emitting area and a non-light-emitting area disposed around the light-emitting area, and the orthographic projection of the grid wiring structure of the first functional layer on the light-emitting layer is located in the non-light-emitting area.

[0021] In a third aspect, according to the embodiments of the present application, a display device is provided, including the display panel as described in any of the first aspect embodiments.

[0022] The functional module, display panel and display device provided by the embodiments of the present application have the antenna unit concentrated on the same layer as the first touch electrode in the first functional layer, and the second touch electrode disposed on the second functional layer is set as a transparent electrode material, so as to improve the light transmittance of the functional module and ultimately improve the display effect of the entire display device. Description of the Drawings

[0023] The features, advantages and technical effects of the exemplary embodiments of the present application will be described below with reference to the drawings.

[0024] Figure 1 is a schematic structural diagram of a functional module provided by an embodiment of the present application;

[0025] Figure 2 is Figure 1 a schematic cross-sectional structure diagram at A-A in the embodiment;

[0026] Figure 3 is Figure 2 a schematic plan view of the first functional layer in the embodiment;

[0027] Figure 4 is Figure 2 another schematic plan view of the first functional layer in the embodiment;

[0028] Figure 5 is Figure 1 another schematic cross-sectional structure diagram at A-A in the embodiment;

[0029] Figure 6 is Figure 1 another schematic cross-sectional structure diagram at A-A in the embodiment;

[0030] Figure 7 is a schematic structural diagram of a display panel provided by an embodiment of the present application;

[0031] Figure 8 is Figure 6 a schematic cross-sectional structure diagram at B-B in the embodiment;

[0032] Figure 9 is Figure 6 another schematic cross-sectional structure diagram at B-B in the embodiment;

[0033] Figure 10 is Figure 6 a schematic plan view of the light-emitting unit and the first functional layer in the embodiment.

[0034] Wherein:

[0035] 100 - functional module;

[0036] 10 - substrate;

[0037] 20 - The first functional layer; 21 - The first touch electrode; 22 - The antenna unit; 23 - The virtual electrode;

[0038] 211 - Sub - electrode block; 231 - Virtual sub - block; 24 - The grid trace structure;

[0039] 30 - The second functional layer; 31 - The second touch electrode;

[0040] 40 - The polarizer layer;

[0041] 51 - The first adhesive layer; 52 - The second adhesive layer;

[0042] 60 - The cover plate;

[0043] 70 - The light - emitting layer; 71 - The light - emitting unit; 711 - The light - emitting area; 712 - The non - light - emitting area;

[0044] 1000 - The display panel.

[0045] In the drawings, like parts are designated by like reference numerals. The drawings are not drawn to scale. Detailed implementation manners

[0046] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the following detailed description, many specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to those skilled in the art that the present application may be practiced without some of these specific details. The description of the embodiments below is only intended to provide a better understanding of the present application by showing examples of the present application. In the drawings and the following description, at least some of the well - known structures and technologies are not shown in order to avoid unnecessarily obscuring the present application; and, for clarity, the dimensions of some structures may be exaggerated. In addition, the features, structures, or characteristics described below may be combined in any suitable manner in one or more embodiments.

[0047] It should be noted that in this text, relative terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0048] The orientation terms appearing in the following description are all the directions shown in the figures, and do not limit the specific structure of the display panel and the bonding structure of the present application. In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "arranged" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0049] In the related art, in order to ensure that the external touch control substrate does not reduce the light extraction rate of the pixel structure in the display panel as much as possible, the electrode structures in the touch control substrate are all made of transparent electrode materials. And in order to integrate the antenna structure into the touch control substrate as well, the antenna structure needs to be made of a metal material to ensure the radiation intensity of the antenna signal.

[0050] However, in the prior art, in a touch control substrate integrated with an antenna structure, both the antenna structure and the electrode structure in the touch control substrate are made of metal materials, and such an arrangement will further affect the light extraction rate of the display panel.

[0051] To address the above problems and for technical considerations, the applicant has proposed a new functional module, display panel and display device.

[0052] Figure 1 The planar structure of the functional module 100 is shown. Figure 2 Shown is Figure 1 The cross-sectional structure of the functional module 100 along A-A in

[0053] Please refer to Figure 1 and Figure 2 In the embodiments of the present application, a functional module 100 is provided, including: a substrate 10, a first functional layer 20 and a second functional layer 30.

[0054] The first functional layer 20 is disposed on one side of the substrate 10. The first functional layer 20 includes a first touch electrode 21 and an antenna unit 22.

[0055] The second functional layer 30 is disposed on the side of the substrate 10 away from the first functional layer 20. The second functional layer 30 includes a second touch electrode 31, and the second touch electrode 31 includes a transparent electrode material.

[0056] In the functional module 100 provided by the embodiment of the present application, the antenna unit 22 is concentrated and disposed on the same layer as the first touch electrode 21 in the first functional layer 20, and the second touch electrode 31 disposed on the second functional layer 30 is set as a transparent electrode material, so as to improve the light transmittance of the functional module 100 and ultimately improve the display effect of the entire display device.

[0057] The substrate 10 is a thin-film substrate that supports and insulates the antenna unit 22 and the first touch electrode 21 in the first functional layer 20 and the second touch electrode 31 in the second functional layer 30. For example, without other specific limitations, the substrate includes thin-film materials commonly used in touch modules and may include glass, polymers, and / or inorganic insulating materials.

[0058] Examples of polymers may include cyclic olefin polymer (COP), polyethylene terephthalate (PET), polyacrylate (PAR), polyetherimide (PEI), polyethylene naphthalate (PEN), polyphenylene sulfide (PPS), polyallylate, polyimide (PI), cellulose acetate propionate (CAP), polyethersulfone (PES), triacetyl cellulose (TAC), polycarbonate (PC), cyclic olefin copolymer (COC), polymethyl methacrylate (PMMA), etc. Examples of inorganic insulating materials may include silicon oxide, silicon nitride, silicon oxynitride, and metal oxides.

[0059] The setting of the substrate 10 can provide a certain supporting effect for the functional units in the first functional layer 20 and the second functional layer 30 attached to both sides of the substrate 10, such as the first touch electrode 21, the second touch electrode 31, and the antenna unit 22, and prevent these functional units from deforming.

[0060] At the same time, the substrate 10 can also serve as a dielectric layer for the functional units such as the first touch electrode 21, the second touch electrode 31, and the antenna unit 22.

[0061] Preferably, the dielectric constant of the substrate 10 is adjusted within a range of about 1.5 to 12. When the dielectric constant exceeds about 12, the driving frequency may be excessively reduced, and it may not be possible to drive the antenna unit 22 in the desired high-frequency or ultra-high-frequency band.

[0062] The first touch electrode 21 and the second touch electrode 31 within the functional module 100 are respectively disposed within the first functional layer 20 and the second functional layer 30. The first touch electrode 21 and the second touch electrode 31 form a mutual capacitance touch module, and a capacitance is formed between the first touch electrode 21 and the second touch electrode 31. The touch circuit determines the touch position by scanning the capacitance change formed between the two.

[0063] Optionally, the first touch electrode 21 within the first functional layer 20 and the second touch electrode 31 within the second functional layer 30 further include connection electrodes that are disposed on the same layer and connect the inside of the first touch electrode 21 or the second touch electrode 31. The connection electrodes can adopt the same patterning process as the first touch electrode 21 or the second touch electrode 31 disposed on the same layer, saving the preparation process cost. For example, when the first touch electrode 21 adopts a grid trace structure, the connection electrodes also adopt the same grid trace structure, which will not be elaborated in the following embodiments.

[0064] The material of the second touch electrode 31 is selected as a transparent electrode material, and the transparent electrode material can include transparent conductive oxides, such as indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), indium zinc tin oxide (IZTO), cadmium tin oxide (CTO), etc.

[0065] The setting of the transparent electrode material can further improve the light transmittance of the functional module 100, thereby further improving the display effect of the display panel 1000.

[0066] Figure 3 A planar structure of the first functional layer 20 is shown.

[0067] Please refer to Figure 3 , in some embodiments, the antenna unit 22 is a grid trace structure.

[0068] In these embodiments, the antenna unit 22 is integrated in the first functional layer 20 that is used to implement the touch function and includes the first touch electrode 21, and is set as a grid trace structure with multiple openings, which can further increase the light-transmitting area of the functional module 100 and ensure the light transmittance of the assembled display panel.

[0069] The grid trace structure includes multiple electrode lines that cross each other within the pattern of the antenna unit 22. After the antenna unit 22 is formed by enclosing a single graphic component by the mutual crossing of the electrode lines, multiple components are mutually connected through connection parts to form the required pattern of the antenna unit 22.

[0070] The openings formed by the mutual crossing of the electrode lines can increase the light-transmitting area of the functional module 100 and ensure the light transmittance of the subsequent assembled display panel.

[0071] Please refer to Figure 3, in some alternative embodiments, the first touch electrode 21 and the antenna unit 22 in the first functional layer 20 are both in a grid trace structure, and the first touch electrode 21 and the antenna unit 22 are arranged at intervals in the first functional layer 20.

[0072] In these alternative embodiments, both the first touch electrode 21 and the antenna unit 22 in the first functional layer 20 are set to a grid trace structure, and the same layer structure is prepared by the same lithography process, further improving the preparation efficiency.

[0073] In some alternative embodiments, the grid trace structure is made of a metal material.

[0074] In these embodiments, the grid trace structure of the antenna unit 22 arranged on the same layer as the first touch electrode 21 in the functional module 100 is made of a metal material. The metal material of the grid trace structure may include silver (Ag), gold (Au), copper (Cu), aluminum (Al), platinum (Pt), palladium (Pd), chromium (Cr), titanium (Ti), tungsten (W), niobium (Nb), tantalum (Ta), vanadium (V), iron (Fe), manganese (Mn), cobalt (Co), nickel (Ni), zinc (Zn), molybdenum (Mo), tin (Sn), calcium (Ca) or an alloy containing at least one metal. For example, silver-palladium-copper (APC) or copper (Cu) or a copper alloy, such as copper-calcium (CuCa). They can be used alone or in combination.

[0075] The use of the metal material of the grid trace structure can further improve the flexibility of the functional module 100, and the setting of the metal material can reduce the resistance, thereby improving the signal transmission speed, and further enhancing the antenna radiation signal intensity.

[0076] Please refer to Figure 3 , in some embodiments, the first functional layer 20 includes a plurality of first touch electrodes 21 arranged at intervals in the transverse direction. The first functional layer 20 further includes a virtual electrode 23 located between two adjacent first touch electrodes 21. The antenna unit 22 is located on one side of the virtual electrode 23 in the longitudinal direction.

[0077] In these embodiments, the antenna unit 22 and the virtual electrode 23 are arranged between the first touch electrodes 21, and the antenna unit 22 is arranged on one side of the virtual electrode 23 in the longitudinal direction, which is convenient for the antenna unit 22 to be connected to the traces formed outside the functional module 100.

[0078] The traces connected to the array lines in the functional module 100 usually surround the functional module 100. In order to facilitate the connection with the traces, the antenna unit 22 is arranged on one side of the virtual electrode 23 in the longitudinal direction between the first touch electrodes 21 arranged at intervals in the transverse direction, so that the traces do not need to enter the interior of the functional module 100. While facilitating the traces, the impedance generated by the overlapping of the lines is reduced.

[0079] Please refer to Figure 3 , in some alternative embodiments, each first touch electrode 21 includes a plurality of sub-electrode blocks 211 arranged longitudinally and connected to each other, and the virtual electrode 23 and the antenna unit 22 are disposed between two sub-electrode blocks 211 arranged longitudinally.

[0080] In these alternative embodiments, the first touch electrode 21 is divided into a plurality of sub-electrode blocks 211, and the virtual electrode 23 and the antenna unit 22 are reasonably arranged by making use of the reserved space between the sub-electrode blocks 211, effectively saving space.

[0081] The metal trace structure forms the sub-electrode blocks 211 as a single component by patterning electrode lines that cross each other, and a plurality of sub-electrode blocks 211 are connected to each other longitudinally to form the first touch electrode 21, and a reserved space is formed between the sub-electrode blocks 211 for placing the virtual electrode 23 and the antenna unit 22.

[0082] Please refer to Figure 3 , in some embodiments, each virtual electrode 23 includes virtual sub-blocks 231 arranged at intervals longitudinally, and the virtual sub-blocks 231 are disposed between two sub-electrode blocks 211 arranged longitudinally.

[0083] In these embodiments, the virtual sub-blocks 231 and the sub-electrode blocks 211 can be further cooperatively arranged to further effectively utilize the space for arranging the first touch electrode 21 and the virtual electrode 23.

[0084] The metal trace structure also forms the virtual sub-blocks 231 as a single component by patterning electrode lines that cross each other, and a plurality of virtual sub-blocks 231 are connected to each other longitudinally to form the virtual electrode 23, and the sub-electrode blocks 211 forming the first touch electrode 21 and the virtual sub-blocks 231 forming the virtual electrode 23 can be arranged crosswise to further effectively utilize the space for arranging.

[0085] Please refer to Figure 3 , in some alternative embodiments, the antenna unit 22 and the virtual sub-blocks 231 have the same area.

[0086] In these alternative embodiments, the antenna unit 22 and the virtual sub-blocks 231 have the same shape and the same area, and further effectively utilize the space for arranging.

[0087] Optionally, the antenna unit 22 can reuse the virtual sub-blocks 231 as the pattern for the antenna unit 22 to emit antenna radiation signals, further reducing the manufacturing cost.

[0088] Figure 4 Another planar structure of the first functional layer 20 is shown.

[0089] Please refer to Figure 4, in some embodiments, the first touch electrode 21 comprises a transparent electrode material.

[0090] In these embodiments, the first touch electrode 21 is also set as a transparent electrode material, which can further improve the light transmittance of the functional module 100.

[0091] Both the first touch electrode 21 and the second touch electrode 31 are set as transparent electrode materials, which can further improve the light transmittance of the functional module 100, thereby improving the light output rate of the display panel 1000 after the functional module 100 is attached to the display panel 1000, and improving the display effect of the display panel 1000.

[0092] In some alternative embodiments, the transparent electrode material comprises indium tin oxide after crystallization treatment.

[0093] In these alternative embodiments, the indium tin oxide material after crystallization treatment can further reduce the sheet resistance, thereby further reducing the impedance of the functional module 100.

[0094] Indium tin oxide is a transparent conductive thin film material with good conductivity and transparency, but its conductive performance is affected by the grain structure of the material.

[0095] In order to make the indium tin oxide material have better conductivity performance in the touch module, the indium tin oxide material needs to be crystallized to reduce the resistance value of the indium tin oxide material and make the thin film performance of the indium tin oxide material better.

[0096] Crystallization treatment means that through specific process means, such as heat treatment, the grain structure of the indium tin oxide thin film becomes more orderly or the grain size increases, so as to achieve the purpose of improving its electrical properties.

[0097] In some alternative embodiments, the thickness of the transparent electrode material is 20nm - 50nm.

[0098] In these alternative embodiments, the transparent electrode material is set to 20nm to 50nm, which can reduce the resistance value and further reduce the thickness of the functional module 100.

[0099] In some embodiments, the substrate 10 is a transparent flexible film material.

[0100] In these embodiments, the substrate 10 of the transparent flexible film material can further improve the flexibility of the functional module 100, can withstand a certain degree of deformation, and can be used in cooperation with a flexible display panel 1000 or a flexible circuit board.

[0101] In some alternative embodiments, the transparent flexible film material comprises one or more of cycloolefin polymer, transparent polyimide, and polyethylene terephthalate.

[0102] In these alternative embodiments, the transparent flexible film material is set as these materials, which have further improved transparency and corrosion resistance. Among them, these materials also have better flexibility, so that the functional module 100 can have better flexibility and can withstand a certain amount of deformation.

[0103] Figure 5 Shows Figure 1 Another schematic cross-sectional structure diagram at A-A in Figure 6 Shows Figure 1 Another schematic cross-sectional structure diagram at A-A during implementation.

[0104] Please refer to Figure 5 And Figure 6 , in some embodiments, the functional module 100 further includes a polarizer layer 40 disposed on the side of the second functional layer 30 away from the substrate 10.

[0105] In these embodiments, the functional module 100 is further integrated with a polarizer layer 40 capable of controlling the transmission of light of a specific wavelength or polarization direction, further expanding the light output selection range of the functional module 100.

[0106] Optionally, the polarizer layer 40 can also be disposed on the side of the first functional layer 20 away from the substrate 10.

[0107] Optionally, the polarizer layer 40 includes a polarizer that allows light of a specific polarization direction to pass through, thereby effectively controlling the brightness and color of the display.

[0108] Optionally, the polarizer layer 40 includes a filter that can only allow light of a specific wavelength to pass through, and the filters are separated by a black matrix layer to prevent color crosstalk between light of different wavelengths emitted from the filters.

[0109] Please refer to Figure 5 , in some alternative embodiments, the functional module 100 further includes a first adhesive layer 51 and a cover plate 60 disposed on the side of the polarizer layer 40 away from the substrate 10. The polarizer layer 40 is located on the side of the second functional layer 30 away from the substrate 10, and the cover plate 60 is adhesively bonded to the polarizer layer 40 through the first adhesive layer 51.

[0110] In these alternative embodiments, the cover plate 60 is connected to the polarizer layer 40 through the first adhesive layer 51. The cover plate 60 plays a role in protecting the structures of the internal first functional layer 20 and second functional layer 30 and preventing them from being affected by external factors. At the same time, the cover plate 60 also has a certain supporting effect to prevent the functional module 100 from being deformed irreversibly by external forces.

[0111] Please refer to Figure 6, optionally, the polarizer layer 40 can also be located on the side of the first functional layer 20 away from the substrate 10. The cover plate 60 is adhesively bonded to the second functional layer 30 through the first adhesive layer 51, and the cover plate 60 can also play the role of including the structures of the first functional layer 20 and the second functional layer 30 inside.

[0112] Figure 7 The planar structure of a display panel 1000 is shown. Figure 8 Shown is Figure 7 a schematic cross-sectional structure diagram at B-B of the display panel 1000 in Figure 9 Shown is Figure 7 another schematic cross-sectional structure diagram at B-B of the display panel 1000 in

[0113] Please refer to Figures 7 to 9 , in a second aspect, an embodiment of the present application provides a display panel 1000, including a light-emitting layer 70 and any one of the functional modules 100 provided in the first aspect embodiment.

[0114] Please refer to Figure 8 , wherein, the polarizer layer 40 is located on the side of the second functional layer 30 away from the substrate 10. The display panel 1000 includes a second adhesive layer 52, and the side of the first functional layer 20 of the functional module 100 away from the substrate 10 is adhesively bonded to the light-emitting layer 70 through the second adhesive layer 52.

[0115] The display panel 1000 provided by the embodiment of the present application includes the functional module 100 provided by the above first aspect embodiment. Therefore, the display panel 1000 provided by the second aspect embodiment of the present application has the beneficial effects of the functional module 100 provided by the first aspect embodiment, which will not be elaborated here.

[0116] The display panel 1000 provided by the second aspect embodiment also makes the first functional layer 20 of the antenna unit 22 set as a grid trace structure close to the light-emitting layer 70. The grid trace structure is set closer to the light-emitting layer 70, so that the light-emitting angle of the light-emitting structure in the light-emitting layer 70 increases, and the light-emitting efficiency is improved.

[0117] The mutually crossed electrode lines in the grid trace structure enclose a plurality of openings. The distance between the openings and the light-emitting structure determines the light-emitting angle at which the light-emitting structure can emit light. The closer the distance between the openings and the light-emitting structure, the larger the light-emitting angle at which the light-emitting structure can emit light, and the higher the light-emitting efficiency.

[0118] Optionally, the polarizer layer 40 is disposed on the side of the functional module 100 away from the light-emitting layer 70. The arrangement of the functional module 100 further disposes the first functional layer 20 provided with the grid trace structure 22 closer to the light-emitting layer 70, which can further shorten the height of the electrode line from the light-emitting structure, enable large-angle light emission of the light-emitting layer 70, and further improve the light-emitting efficiency.

[0119] Please refer to Figure 9 , optionally, the polarizer layer 40 is located on the side of the first functional layer 20 away from the substrate 10, and the light-emitting layer 70 is located on the side of the polarizer layer 40 away from the substrate 10, which can also achieve large-angle light emission of the light-emitting layer and improve the light-emitting efficiency.

[0120] Figure 10 The partial planar structure of the overlapping portion of the first functional layer 20 and the light-emitting layer 70 in the display panel 1000 is shown.

[0121] Please refer to Figure 10 , in some embodiments, the light-emitting layer 70 includes a plurality of light-emitting units 71 arranged in an array. The light-emitting unit 71 includes a light-emitting region 711 and a non-light-emitting region 712 disposed around the light-emitting region 711. The orthographic projection of the grid trace structure 24 of the first functional layer 20 on the light-emitting layer 70 is located in the non-light-emitting region 712.

[0122] In these embodiments, the grid trace structure 24 is disposed in the non-light-emitting region 712 to avoid blocking the light-emitting region 711 of the light-emitting unit 71. The light emitted from the light-emitting region 711 can further improve the emission efficiency and further improve the light-emitting efficiency of the display panel 1000.

[0123] The arrangement of the electrode lines in the grid trace structure 24 around the light-emitting unit 71 further avoids interference between the electrode lines and the light emitted from the light-emitting region 711 of the light-emitting unit 71, avoids display optical problems such as moiré and graininess, thereby avoiding affecting the display performance of the display panel 1000, and further improving the light-emitting efficiency of the display panel 1000.

[0124] It should be noted that Figure 10 the shown grid trace structure 24 of the first functional layer 20 covers most of the non-light-emitting region 712, and only a small part of the non-light-emitting region 712 is exposed between the grid trace structures 24 of the first functional layer 20.

[0125] In a third aspect, an embodiment of the present application provides a display device, including any one of the display panels 1000 provided in the embodiments of the second aspect above.

[0126] The display device provided by the embodiment of the present application includes the display panel 1000 provided by the embodiment of the second aspect. Therefore, the display device provided by the embodiment of the third aspect of the present application has the beneficial effects of the display panel 1000 provided by the embodiment of the second aspect, which will not be elaborated herein.

[0127] Although the present application has been described with reference to the preferred embodiments, various modifications can be made to it and components therein can be replaced with equivalents without departing from the scope of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A functional module, characterized in that, Comprising: A substrate; A first functional layer disposed on one side of the substrate, the first functional layer including a first touch electrode and an antenna unit; A second functional layer disposed on the side of the substrate away from the first functional layer, the second functional layer including a second touch electrode, and the second touch electrode including a transparent electrode material.

2. The functional module according to claim 1, wherein The antenna unit is a grid trace structure; Preferably, both the first touch electrode and the antenna unit in the first functional layer are grid trace structures, and the first touch electrode and the antenna unit are spaced apart in the first functional layer; Preferably, the grid trace structure is a metal material.

3. The functional module according to claim 2, wherein The first functional layer includes a plurality of the first touch electrodes spaced apart in the transverse direction, the first functional layer further includes a virtual electrode located between two adjacent first touch electrodes, and the antenna unit is located on one side of the virtual electrode in the longitudinal direction; Preferably, each of the first touch electrodes includes a plurality of sub-electrode blocks arranged longitudinally and connected to each other, and the virtual electrode and the antenna unit are disposed between two sub-electrode blocks arranged longitudinally.

4. The functional module according to claim 3, wherein Each of the virtual electrodes includes virtual sub-blocks spaced apart in the longitudinal direction, and the virtual sub-blocks are disposed between two sub-electrode blocks arranged longitudinally; Preferably, the area of the antenna unit is equal to the area of the virtual sub-block.

5. The functional module according to claim 1, wherein The first touch electrode includes the transparent electrode material; Preferably, the transparent electrode material includes indium tin oxide after crystallization treatment; Preferably, the thickness of the transparent electrode material is 20 nm - 50 nm.

6. The functional module according to claim 1, wherein The substrate is a transparent flexible film material; Preferably, the transparent flexible film material includes one or more of cycloolefin polymer, transparent polyimide, and polyethylene terephthalate.

7. The functional module according to claim 1, wherein The functional module further includes a polarizer layer disposed on the side of the first functional layer or the second functional layer away from the substrate; Preferably, the functional module further includes a first adhesive layer and a cover plate; The polarizer layer is located on the side of the second functional layer away from the substrate, and the cover plate is adhesively bonded to the polarizer layer through the first adhesive layer; Or, the polarizer layer is located on the side of the first functional layer away from the substrate, and the cover plate is adhesively bonded to the second functional layer through the first adhesive layer.

8. A display panel, characterized in that, Comprising: A light-emitting layer; The functional module according to any one of claims 1 to 7; Wherein, the polarizer layer is located on the side of the second functional layer away from the substrate, the display panel includes a second adhesive layer, and the side of the first functional layer of the functional module away from the substrate is adhesively bonded to the light-emitting layer through the second adhesive layer; Or, the polarizer layer is located on the side of the first functional layer away from the substrate, and the light-emitting layer is located on the side of the polarizer layer away from the substrate.

9. The display panel according to claim 8, characterized in that, The light-emitting layer includes a plurality of light-emitting units arranged in an array, the light-emitting unit includes a light-emitting region and a non-light-emitting region disposed around the light-emitting region, and the orthographic projection of the grid trace structure of the first functional layer on the light-emitting layer is located in the non-light-emitting region.

10. A display device, characterized in that, Including the display panel according to any one of claims 8 to 9.

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