Preparation method of display module, display module and display device

Abstract

The invention provides a preparation method of a display module, the display module and a display device.The display module comprises a display panel and a first antenna assembly, the display panel comprises a substrate, a display area, a transition area and a hole opening area, the display area, the transition area and the hole opening area are formed on the substrate, and the display area and the transition area surround the hole opening area; the transition area is located between the display area and the opening area, the display area comprises a metal layer and a first non-metal layer which are stacked on the substrate, the transition area comprises a second non-metal layer, and the second non-metal layer and the first non-metal layer are arranged on the same layer; the first antenna assembly is arranged on the side, away from the display area, of the substrate, the orthographic projection of the first antenna assembly on the substrate is located in the transition area, and the first antenna assembly comprises an antenna electrode layer, a dielectric layer and a reflecting layer which are sequentially stacked in the direction away from the display area. The thickness of the dielectric layer in the transition area is larger than or equal to the first thickness.

Description

Technical Field

[0001] The present disclosure relates to the field of display technology, and more specifically, to a method for preparing a display module, a display module, and a display device. Background Art

[0002] With the global popularity of 5G networks, the demand for 5G antennas in consumer terminals is becoming increasingly clear. Since 5G signals are extremely sensitive to environmental losses, how to ensure that the antenna radiates in a wide range of directions while taking into account the user experience in various application scenarios has become an urgent problem to be solved.

[0003] At present, the design schemes of setting a packaged antenna (Antenna in Package, AIP) on the back of the display panel and matching it with a glass back cover, placing a packaged antenna in a groove in the side frame, or attaching a packaged antenna on the front of the display panel are usually adopted to ensure that the antenna can work normally in different holding postures and placement environments. However, the above schemes all have certain defects, such as the packaged antenna is easily affected by the holding posture, has high requirements on the shell material and frame size, is prone to moiré, and affects the display quality. Summary of the invention

[0004] The purpose of the present disclosure is to provide a method for preparing a display module, a display module and a display device, so as to solve the technical problems in the related art that the packaged antenna in the display module is easily affected by the holding posture, has high requirements on the shell material and frame size, and produces moiré patterns that affect the display quality.

[0005] In order to achieve the above objectives, the present invention adopts the following technical solutions:

[0006] A first aspect of the present disclosure provides a display module, including a display panel and a first antenna assembly;

[0007] The display panel includes a substrate, a display area, a transition area and an opening area formed on the substrate, the display area and the transition area surround the opening area, the transition area is located between the display area and the opening area, the display area includes a metal layer and a first non-metal layer stacked on the substrate, the transition area includes a second non-metal layer, and the second non-metal layer is arranged on the same layer as the first non-metal layer;

[0008] The first antenna component is arranged on a side of the substrate away from the display area, and the orthographic projection of the first antenna component on the substrate is located in the transition area. The first antenna component includes an antenna electrode layer, a dielectric layer and a reflective layer stacked in sequence in a direction away from the display area, and the thickness of the dielectric layer in the first transition area is greater than or equal to the first thickness.

[0009] Optionally, the transition zone includes a first transition zone surrounding the opening zone and a second transition zone located between the first transition zone and the display zone, and the orthographic projection of the first antenna component on the substrate is located in the first transition zone.

[0010] Optionally, the display panel also includes a border area located outside the display area, the border area includes a first border area and a second border area arranged relatively to each other, the distance between the first border area and the opening area is smaller than the distance between the second border area and the opening area, the first transition area includes a first sub-transition area close to the first border area and a second sub-transition area close to the second border area, and the orthographic projection of the first antenna assembly on the substrate is located within the first sub-transition area.

[0011] Optionally, the display module also includes a radio frequency integrated circuit, which is arranged on a side of the substrate away from the display area, the orthographic projection of the first antenna component on the substrate is located in the first border area, the first antenna component also includes a first feed line and a second feed line, the antenna electrode layer includes at least one antenna electrode, one end of the first feed line is connected to the antenna electrode, the other end of the first feed line extends from the first sub-transition area to the first border area and is connected to the radio frequency integrated circuit, one end of the second feed line is connected to the reflective layer, and the other end of the second feed line extends from the first sub-transition area to the first border area and is connected to the radio frequency integrated circuit.

[0012] Optionally, the display area includes a first barrier layer, a first buffer layer, a driving circuit layer and a light-emitting function layer stacked in sequence on the substrate; the driving circuit layer includes a first active layer, a first gate insulating layer, a first gate, a first dielectric layer, a first source-drain metal layer, a first passivation layer and a first flat layer stacked in sequence on the substrate; the light-emitting material layer includes a pixel defining layer, an anode, a light-emitting material layer and a cathode layer stacked in sequence on the first flat layer; the first barrier layer, the first buffer layer, the first gate insulating layer, the first dielectric layer and the first passivation layer extend to the transition area to form a second barrier layer, a second buffer layer, a second gate insulating layer, a second dielectric layer and a second passivation layer, respectively; the second non-metallic layer includes the second barrier layer, the second buffer layer, the second gate insulating layer, the second dielectric layer and the second passivation layer.

[0013] Optionally, the display panel also includes a first isolation structure, which is arranged in the transition region, and the first isolation structure is arranged on the same layer as at least one layer of the second blocking layer, the second buffer layer, the second gate insulation layer, the second dielectric layer and the second passivation layer, and the light-emitting material layer and the cathode layer are disconnected at the first isolation structure.

[0014] Optionally, the first isolation structure is an isolation trench, which is arranged in the substrate, the second barrier layer, the second buffer layer, the second gate insulation layer, the second dielectric layer and the second passivation layer, and the isolation trench at least passes through the second barrier layer, the second buffer layer, the second gate insulation layer, the second dielectric layer and the second passivation layer.

[0015] Optionally, there are multiple first isolation structures, and the multiple first isolation structures are evenly distributed in the direction from the opening area to the display area.

[0016] Optionally, the display module also includes a heat dissipation component, which is arranged between the substrate and the first antenna component. The heat dissipation component includes an adhesive layer, a buffer layer and a heat dissipation layer stacked in sequence in a direction away from the display area. A first opening and a first groove are provided on the heat dissipation component. The orthographic projection of the first opening on the substrate overlaps with the orthographic projection of the opening area on the substrate. The first groove is arranged on the surface of the heat dissipation component adjacent to the first antenna component. The first groove at least penetrates the heat dissipation layer, and the orthographic projection of the first groove on the substrate overlaps with the orthographic projection of the first antenna component on the substrate.

[0017] Optionally, the display module further includes a second antenna component and / or a third antenna component, the second antenna component is arranged on the light emitting side of the display panel, and the third antenna component is arranged in the border area of ​​the display panel.

[0018] Optionally, the display module further includes a flexible circuit board, the radio frequency integrated circuit is bound to the flexible circuit board in the first border area, and the orthographic projection of the flexible circuit board on the display panel has no overlap with the orthographic projection of the first antenna assembly on the display panel.

[0019] A second aspect of the present disclosure provides a method for preparing a display module, comprising the following steps:

[0020] Prepare a display panel, the display panel comprising a substrate, a display area, a transition area and an opening area formed on the substrate, the display area and the transition area surround the opening area, the transition area is located between the display area and the opening area, the display area comprises a metal layer and a first non-metal layer stacked on the substrate, the transition area comprises a second non-metal layer, and the second non-metal layer is arranged on the same layer as the first non-metal layer;

[0021] A first antenna component is prepared by a printing process on a side of the substrate away from the display area, the orthographic projection of the first antenna component on the substrate is located in the transition area, the first antenna component includes an antenna electrode layer, a dielectric layer and a reflective layer stacked in sequence in a direction away from the display area, and the thickness of the dielectric layer in the first transition area is greater than or equal to the first thickness.

[0022] A third aspect of the present disclosure provides a display device, comprising the display module as described above.

[0023] The beneficial effects of the present disclosure are as follows:

[0024] In the display module of the embodiment of the present disclosure, the first antenna component is arranged on the side of the display panel opposite to the display area, and the orthographic projection of the first antenna component on the substrate is located in the transition area between the opening area and the display area. Since the transition area of ​​the display panel only includes the second non-metallic layer, but does not include metal layers such as the gate layer, the source and drain metal layer, and the cathode layer, no metal shielding will be formed when the first antenna component is arranged on the back of the display panel. The radiation direction of the first antenna component can cover the light-emitting side of the display panel. When the display module is in use, the screen is usually in a non-shielded state. At this time, the first antenna component will not be blocked, and can supplement the radiation direction of the display panel on the light-emitting side, so as to avoid the display module being affected by the holding posture or the placement state. Compared with the external antenna, it will not cause the display panel to produce moiré patterns, thereby avoiding adverse effects on the display quality. In addition, the first antenna component is arranged in the opening frame area, and the requirements for the backlight side shell and the side size of the display panel are relatively low, and it has strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The specific implementation methods of the present disclosure are further described in detail below with reference to the accompanying drawings.

[0026] Figure 1 A schematic diagram of a planar structure of a display panel provided in an embodiment of the present disclosure;

[0027] Figure 2 for Figure 1 The middle part shows the schematic diagram of the film structure of the panel in the direction of the A-A' section line;

[0028] Figure 3 for Figure 1 A schematic diagram of the structure of the display panel and the first antenna assembly in area C;

[0029] Figure 4 A schematic diagram of the film layer structure of the display area of ​​the display panel provided by an embodiment of the present disclosure;

[0030] Figure 5 A schematic diagram of the film layer structure of the transition area of ​​the display panel provided by the embodiment of the present disclosure;

[0031] Figure 6 An exploded schematic diagram of a display module provided in an embodiment of the present disclosure;

[0032] Figure 7 for Figure 6 Schematic diagram of the film structure of the heat dissipation component in the direction of the BB' section line;

[0033] Figure 8 It is a structural schematic diagram of a metal isolation column in the related art;

[0034] Fig. 9 A schematic diagram of the inward movement of metal routing in the transition zone in an embodiment of the present disclosure;

[0035] Fig.10 A flow chart of a method for preparing a display module provided in an embodiment of the present disclosure;

[0036] Fig.11 A flow chart of the manufacturing process of the display module provided in the embodiment of the present disclosure. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0038] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, similar words such as "one", "one" or "the" do not indicate quantity restrictions, but indicate that there is at least one. Similar words such as "include" or "comprise" mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Similar words such as "connect" or "connected" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0039] In the related art, in order to ensure that the antenna radiation direction is as wide as possible and has good signal strength in various application scenarios, the antenna design schemes on consumer terminals, such as mobile phones, are usually as follows:

[0040] (1) A glass back cover is provided on the back of the mobile phone screen, i.e., the backlight side, and multiple antennas are arranged;

[0041] (2) Dig a groove in the side metal frame of the mobile phone to place the packaged antenna;

[0042] (3) A packaged antenna is provided on the front side of the mobile phone, i.e., the light emitting side, by means of an external plug-in.

[0043] However, all of the above solutions have certain defects. Specifically, the solution of setting a packaged antenna on the side has high requirements for the side size, and the folding mobile phone has limited space for the antenna on the side because the hinge, earpiece, microphone, speaker and other devices occupy the frame area, resulting in limited solution. For the solution of setting a packaged antenna on the back, when the mobile phone is placed face up on the table, most of the antennas are in a blocked state, and the blocking has a large loss on the radio frequency signal, especially the millimeter wave, which will cause the signal strength to decrease, and the material of the back shell of the mobile phone is limited; for the solution of setting a packaged antenna on the front of the screen, it will cause moiré phenomenon on the display screen and poor visibility.

[0044] In order to solve the above technical problems, the present disclosure provides a display module and a display device, the technical concept of which is to set a packaged antenna in the opening frame area of ​​the display panel, and no metal film layer is set on the display panel in the area where the packaged antenna is located.

[0045] Please refer to Figures 1 to 5 , Figure 1 A schematic diagram of a planar structure of a display panel provided in an embodiment of the present disclosure, Figure 2 It is a schematic diagram of the film structure of the display panel in the direction of the A-A' section line. Figure 3 for Figure 1 A schematic diagram of the structure of the display panel and the first antenna assembly in area C, Figure 4 Schematic diagram of the film structure of the display area. Figure 5 is a schematic diagram of the film structure in the transition zone, such as Figures 1 to 5As shown, the display module includes a display panel 10 and a first antenna component 20, the display panel 10 includes a substrate 100, an opening area 110 formed on the substrate 100, a display area 120 and a transition area 130, the display area 120 and the transition area 130 surround the opening area 110, the transition area 130 is located between the display area 120 and the opening area 110, the display area 120 includes a metal layer and a first non-metal layer stacked on the substrate 100, the transition area 130 includes a second non-metal layer, and the second non-metal layer is arranged in the same layer as the first non-metal layer; the first antenna component 20 is arranged on a side of the substrate 100 away from the display area 120, the orthographic projection of the first antenna component 20 on the substrate 100 is located in the transition area 130, the first antenna component 20 includes an antenna electrode layer 210, a dielectric layer 220 and a reflective layer 230 stacked in sequence in a direction away from the display area 120, and the thickness of the dielectric layer 220 in the transition area 130 is greater than or equal to the first thickness.

[0046] In the embodiment of the present disclosure, the opening area 110 is the area corresponding to the opening A, and the opening A is used to place an optical sensor, such as a camera assembly. Further, the transition area 130 can also be understood as a hole frame, that is, the frame area of ​​the opening A.

[0047] In the embodiment of the present disclosure, the display area 120 includes a plurality of film layers stacked in sequence on the substrate 100, each of which may be a metal film layer or a non-metal film layer, wherein each non-metal film layer constitutes a first non-metal layer, that is, the first non-metal layer is a general term for each non-metal layer in the display area 120. Correspondingly, the transition area 130 includes a plurality of film layers stacked in sequence on the substrate 100, each of which is a non-metal film layer, and each non-metal film layer constitutes a second non-metal layer, that is, the second non-metal layer is a general term for each non-metal layer in the transition area 130. Among them, the second non-metal layer may include all non-metal layers in the first non-metal layer, and may also include part of the non-metal layers in the first non-metal layer, as long as there is no metal layer in the transition area 130.

[0048] Optionally, the display area 120 of the display panel 10 includes film layers such as a barrier layer, a buffer layer, a driving circuit layer, a light-emitting functional layer and an encapsulation layer, which are sequentially formed on the substrate 100. The substrate may be a flexible substrate of materials such as polyimide (PI), polyethylene naphthalate (PEN), thermoplastic polyester (PET), or a rigid substrate of materials such as glass and quartz. The barrier layer and the buffer layer may be formed on the entire surface of the substrate. For example, the barrier layer may be made of inorganic insulating materials such as silicon oxide, silicon nitride, or silicon oxynitride. The buffer layer may also be made of inorganic insulating materials such as silicon oxide, silicon nitride, or silicon oxynitride. The barrier layer is beneficial to blocking water and oxygen from entering the OLED formed later from the bottom. The buffer layer is beneficial to the quality of subsequent material deposition. The driving circuit layer may also be referred to as a thin film transistor (TFT) layer, including an active layer (Active) formed on the buffer layer by a patterning process, a gate insulating layer (GI) formed on the active layer by deposition or the like, a gate (Gate) of a thin film transistor formed on the gate insulating layer by a patterning process, a dielectric layer (ILD) formed on the gate by deposition or the like, a source-drain metal layer formed on the dielectric layer and a passivation layer covering the source-drain metal layer, a flat layer (PLN) covering the passivation layer (PVX) and the exposed dielectric layer, the source-drain metal layer forming the source (Source) and drain (Drain) of the thin film transistor, for example, the source is electrically connected to the active layer through a dielectric layer via. Among them, the active layer may be made of materials such as polysilicon and metal oxides, the gate insulating layer may be made of inorganic insulating materials such as silicon oxide, silicon nitride or silicon oxynitride, and the dielectric layer may be made of inorganic insulating materials such as silicon oxide, silicon nitride or silicon oxynitride. The gate material includes metals or alloy materials such as aluminum, titanium, and cobalt. The flat layer is, for example, an organic material. The passivation layer may be an inorganic insulating material such as silicon nitride, and the anode may be a metal oxide such as ITO, IZO, or a metal such as Ag, Al, Mo, or an alloy thereof. The anode may be electrically connected to the drain through a via hole provided in the planar layer.

[0049] For example, Figure 4As shown, the display area 120 of the display panel 10 includes a first barrier layer 1202, a first buffer layer 1203, a first active layer 1204, a first gate insulating layer (GI) 1205 formed on the first active layer 1204 by deposition or the like, a first gate (Gate) 1206 of a thin film transistor formed on the first gate insulating layer 1205 by a patterning process, a first dielectric layer (ILD) 1207 formed on the first gate 1206 by deposition or the like, and a first gate 1208 formed on the first gate 1208 by a patterning process. 207, a first source-drain metal layer 1208 formed on the substrate, a first passivation layer 1209 covering the first source-drain metal layer 1208, a first planar layer 1210 covering the first passivation layer 1209 and the exposed first dielectric layer 1207, a second source-drain metal layer 1211, a third planar layer 1212 covering the second source-drain metal layer 1211 and the exposed first planar layer 1210, a pixel defining layer 1213 disposed above the third planar layer 1212, an anode 1214, a light-emitting material layer 1215, a cathode layer 1216, and an encapsulation layer, Figure 4 1208a is one of the source and the drain, and 1208b is the other of the source and the drain. The first active layer 1204, the first gate insulating layer 1205, the first gate 1206, the first dielectric layer 1207, the first source-drain metal layer 1208, the first passivation layer 1209, the first flat layer 1210, and the second source-drain metal layer 1211 constitute a driving circuit layer of the display panel. Figure 4 As shown in the TFT; the anode 1214, the light-emitting material layer 1215, and the cathode layer 1216 form a light-emitting functional layer of the display panel, which includes a plurality of light-emitting pixels, such as Figure 4 As shown in R, G, and B.

[0050] in, Figure 4 In the illustrated embodiment, the first active layer 1204, the first gate electrode 1206, the first source-drain metal layer 1208, the second source-drain metal layer 1211, the anode 1214, and the cathode layer 1216 are all metal layers, which constitute the metal layer in the display area, while the first blocking layer 1202, the first buffer layer 1203, the first gate insulating layer 1205, the first dielectric layer 1207, the first passivation layer 1209, the first planarizing layer 1210, the third planarizing layer 1212, the pixel defining layer 1213, the light-emitting material layer 1215, and the encapsulation layer are all non-metal layers, which constitute the first non-metal layer in the display area 120.

[0051] For example, Figure 5As shown, the transition region 130 includes a second barrier layer 1302, a second buffer layer 1303, a second gate insulating layer 1305, a second dielectric layer 1307 and a second passivation layer 1309 sequentially stacked on the substrate 100. In a specific implementation, the first barrier layer 1202, the first buffer layer 1203, the first gate insulating layer 1205, the first dielectric layer 1207 and the first passivation layer 1209 in the display region 120 extend to the transition region 130 to form a second non-metal layer. Specifically, the non-metallic materials prepared during the preparation of the first blocking layer 1202, the buffer layer 1203, the first gate insulating layer 1205, the first dielectric layer 1207 and the first passivation layer 1209 in the display area 120 extend to the transition area 130 respectively, forming the second blocking layer 1302, the second buffer layer 1303, the second gate insulating layer 1305, the second dielectric layer 1307 and the second passivation layer 1309 in the transition area 130, that is, the second non-metallic layer includes the second blocking layer 1302, the second buffer layer 1303, the second gate insulating layer 1305, the second dielectric layer 1307 and the second passivation layer 1309.

[0052] The second non-metal layer is disposed in the same layer as the first non-metal layer, which means that any film layer in the second non-metal layer is disposed in the same layer as the corresponding film layer in the first non-metal layer. For example, the second barrier layer 1302 in the transition region 130 is disposed in the same layer as the first barrier layer 1202 in the display region 120, the second buffer layer 1303 in the transition region 130 is disposed in the same layer as the first buffer layer 1203 in the display region 120, the second gate insulating layer 1305 in the transition region 130 is disposed in the same layer as the first gate insulating layer 1205 in the display region 120, the second dielectric layer 1307 in the transition region 130 is disposed in the same layer as the first dielectric layer 1207 in the display region 120, and the second passivation layer 1309 in the transition region 130 is disposed in the same layer as the first passivation layer 1209 in the display region 120.

[0053] It can be understood that the same-layer arrangement in the embodiments of the present disclosure means that two layers, parts, components, elements or parts can be formed by the same preparation process (such as a patterning process, etc.), and the two layers, parts, components, elements or parts are generally formed of the same material. For example, the same-layer arrangement of two or more functional layers means that these functional layers arranged in the same layer can be formed using the same material layer and the same preparation process, thereby simplifying the preparation process of the display substrate. Alternatively, the same-layer arrangement can also be understood as a film layer structure formed in different regions in the same preparation process. For example, the second barrier layer 1302 in the transition zone 130 and the first barrier layer 202 in the display zone 120 can be understood as barrier layers formed in the same preparation process and located in the transition zone 130 and the display zone 120, respectively, that is, a barrier layer of the entire surface is divided according to the region.

[0054] In other embodiments, the display area of ​​the display panel may also be other structures, such as the driving circuit layer of the display area 120 is a double-gate structure with two gate layers 1206. Correspondingly, the film layer structure in the transition area 130 is adaptively changed when the film layer structure of the display area 120 changes. The basic technical concept is: the display panel 10 does not have a metal film layer in the transition area 130, for example, the transition area 130 does not have a gate, a first source and drain metal layer, a second source and drain metal layer, a cathode layer and other metal film layers, that is, the orthographic projection of the gate, the first source and drain metal layer, the second source and drain metal layer, the cathode layer and other metal film layers on the substrate 100 does not overlap with the transition area 130. In addition, please refer to Fig. 9 , Fig. 9 (a) is a schematic diagram of the film structure at the adjacent position of the display area 120 and the transition area 130 in the related art, Fig. 9 (b) is a schematic diagram of the inward movement of metal wiring at the adjacent position of the transition zone 130 and the display area 120 provided in the implementation of the present disclosure. It can be seen that in the related art, there are still certain metal wirings in the local area of ​​the transition zone 130 close to the display area 120, such as part of the first source and drain metal layer 1208 and the second source and drain metal layer 1211. In the embodiment of the present disclosure, the metal wirings (the first source and drain metal layer 1208 and the second source and drain metal layer 1211) in the transition zone 130 are moved inward, that is, moved into the display area 120, and there are no metal wirings in the transition zone 130.

[0055] In the embodiment of the present disclosure, the thickness of the dielectric layer 220 in the first sub-transition region 1311 is greater than or equal to the first thickness, that is, in the first sub-transition region 1311, the vertical distance between the antenna electrode layer 210 and the reflective layer 230 is greater than the first thickness, and the vertical distance here specifically refers to the distance in the direction perpendicular to the substrate.

[0056] Optionally, the first thickness is 100 microns. It is understandable that the first thickness can also be other values, which are set according to the requirements of the antenna performance, such as 110 microns, 120 microns, etc. By setting the thickness of the dielectric layer 220 to be greater than or equal to the first thickness, it can be ensured that the first antenna assembly 200 has sufficient clearance area to avoid interference with the performance of the first antenna assembly 200 by other components. However, the solution of integrating the antenna assembly into the display panel in the related art cannot solve the technical problem of the clearance area. In addition, the frame of the existing display module has usually been reduced to about 0.5 mm, and the GOA unit and GOA wiring on the left and right sides of the display module can no longer be compressed, so it is not suitable to be set in the side area.

[0057] Compared with the related art, the display module of the embodiment of the present disclosure arranges the first antenna component on the side of the display panel opposite to the display area, and the orthographic projection of the first antenna component on the substrate is located in the transition area between the opening area and the display area. Since the transition area of ​​the display panel only includes the second non-metallic layer, but does not include metal layers such as the gate layer, the source and drain metal layer, and the cathode layer, no metal shielding will be formed when the first antenna component is arranged on the back of the display panel. The radiation direction of the first antenna component can cover the light-emitting side of the display panel. When the display module is in use, the screen is usually in a non-shielded state. At this time, the first antenna component will not be blocked, and can supplement the radiation direction of the display panel on the light-emitting side, thereby preventing the display module from being affected by the holding posture or placement state. Compared with the external antenna, it will not cause the display panel to produce moiré patterns, thereby avoiding adverse effects on the display quality. In addition, the first antenna component is arranged in the opening frame area, and the requirements for the backlight side shell and side dimensions of the display panel are relatively low, and it has strong applicability.

[0058] In one possible implementation, Figure 3 As shown, the transition zone 130 includes a first transition zone 1310 surrounding the opening zone 110 and a second transition zone 1320 located between the first transition zone 1310 and the display zone 120. The positive projection of the first antenna component 20 on the substrate 100 is located in the first transition zone 1310. At this time, it is at least guaranteed that no metal film layer is formed in the first transition zone 1310.

[0059] Optionally, the size of the transition zone 130 is generally 0.4 to 0.6 mm. In the embodiment of the present disclosure, it is assumed that the opening A is a circular opening, and the orthographic projection of the opening area 110 on the substrate 100 is a circular area. Among them, the transition zone 130 is arranged around the opening area 110. Exemplarily, the orthographic projection of the transition zone 130 on the substrate 100 can be a circular ring area around the opening A. The size of the transition zone 130 is 0.4 to 0.6 mm, which means that the ring width of the circular ring area is 0.4 to 0.6 mm, that is, the difference between the outer circle radius and the inner circle radius of the ring is between 0.4 and 0.6 mm.

[0060] Optionally, the size of the first antenna assembly 20 is smaller than the size of the transition area 130. In a specific implementation, the first antenna assembly 20 is disposed in the transition area 130 near the opening area 110, so that a certain transition area can be ensured between the display area 120 and the first antenna assembly 20, thereby improving the reliability and reliability of the display area 120. For example, Figure 3As shown, the area in the transition area 130 where the first antenna assembly 20 is disposed is recorded as the first transition area 1310, and the area in the transition area 130 where the first antenna assembly 20 is not disposed is recorded as the second transition area 1320. Then, in the direction from the opening area 110 to the display area 120, the first transition area 1310 and the second transition area 1320 are sequentially disposed. The first transition area 1310 and the second transition area 1320 are both annular areas.

[0061] In one possible implementation, Figures 1 to 3 As shown, the outer frame of the display area 120 is a regular quadrilateral, such as a rectangle. Correspondingly, the display panel 10 also includes a frame area 140 located outside the display area 120, the frame area 140 includes a first frame area 1410 and a second frame area 1420 arranged opposite to each other, the distance L1 between the first frame area 1410 and the opening area 110 is less than the distance L2 between the second frame area 1420 and the opening area 110, the first transition area 1310 includes a first sub-transition area 1311 close to the first frame area 1410 and a second sub-transition area 1312 close to the second frame area 320, and the orthographic projection of the first antenna component 20 on the substrate 100 is located in the first sub-transition area 1311. Correspondingly, the thickness of the dielectric layer 220 in the first antenna component 20 in the transition area 130 is greater than or equal to the first thickness, and at least: the thickness of the dielectric layer 220 in the corresponding area of ​​the first sub-transition area 1311 is greater than or equal to the first thickness.

[0062] In the disclosed embodiment, taking the display panel as a mobile phone screen and the opening A as the front camera opening on the mobile phone screen as an example, since the front camera opening is located in the center position of the mobile phone screen close to the upper frame, the first frame area 1410 can be understood as the upper frame of the mobile phone screen, and the second frame area 1420 can be understood as the lower frame of the mobile phone screen. At this time, the first transition area 1301 can be divided into two semicircular ring areas, which are respectively recorded as the first sub-transition area 1311 and the second sub-transition area 1312, wherein the first antenna assembly 20 is arranged in the semicircular arc area close to the upper frame, that is, in the first sub-transition area 1311.

[0063] It is understandable that in different display panels, the position of the opening area 110 in the entire display panel can also be other positions, such as close to the bottom frame or close to the left frame or the right frame, etc. The position of the first antenna component 20 in the transition area 130 will be adaptively adjusted following the position of the opening area 110, but it is necessary to ensure that: the first antenna component 20 is arranged in the transition area 130 and the position of the first antenna component 20 in the transition area 130 makes the distance between the first antenna component 20 and the frame area 140 shortest or the connection structure with the flexible circuit board is the simplest.

[0064] In a possible implementation, the antenna electrode layer 210 includes at least one antenna electrode 2110, which is also a radiation unit of the antenna. The number of the antenna electrodes 2110 may be one, two, or more. Figure 6 As shown, there are four antenna electrodes 2110, and the four antenna electrodes 2110 are evenly distributed in the first sub-transition region 1311. Optionally, the size of each antenna electrode 2110 is 0.5 mm×0.5 mm.

[0065] In one possible implementation, Figure 3 and Figure 6 As shown, the display module further includes a radio frequency integrated circuit (RFIC) 30, which is disposed on a side of the substrate 100 away from the display area, and the orthographic projection of the RFIC 30 on the substrate 100 is located in the first frame area 1410. In a specific implementation, the first antenna assembly 20 further includes a first feeder 240 and a second feeder (not shown in the figure), the antenna electrode layer 210 includes at least one antenna electrode 2110, one end of the first feeder 240 is connected to the antenna electrode 2110, the other end of the first feeder 240 extends from the first sub-transition area 1311 to the first frame area 1410 and is connected to the RFIC 30, one end of the second feeder is connected to the reflective layer 230, the other end of the second feeder extends from the first sub-transition area 1311 to the first frame area 1410 and is connected to the RFIC 30. Exemplarily, the reflective layer 230 is connected to the ground signal output terminal of the RFIC 30. The first feed line 240 and the antenna electrode 2110 are disposed in the same layer, that is, the antenna electrode 2110 and the first feed line 240 are formed simultaneously in the same process. Similarly, the second feed line can be disposed in the same layer as the reflective layer 230 .

[0066] Among them, the RFIC 30 is a general term for a series of circuits, chips and components responsible for transmitting and receiving radio electromagnetic waves in communication devices such as mobile phones. It is responsible for converting baseband signals into RF signals for transmission, and converting received RF signals into baseband signals for processing. The RFIC 30 includes a variety of functional modules, such as RF transceivers, RF switches, RF power amplifiers (PA), etc. These modules work together to achieve signal modulation, amplification, filtering and demodulation functions. The antenna electrode 2110 is responsible for radiating the RF signal generated by the RFIC 30 in the form of electromagnetic waves, or converting the received electromagnetic waves into RF signals for processing by the RFIC 30. The reflective layer 230 is usually located behind the antenna electrode 2110, which is mainly used to reflect part of the backscattered energy radiated by the antenna electrode 2110 so that it can be reused by the antenna electrode 2110, thereby enhancing the forward radiation capability of the first antenna assembly 20 and improving the overall efficiency of the first antenna assembly 20. In addition, the reflective layer 230 can reflect the signal in a concentrated manner in the target direction, thereby improving the reception quality and propagation distance of the signal. During implementation, the reflective layer 230 needs to be grounded.

[0067] Optionally, the display module further includes a flexible circuit board FPC, the RF integrated circuit 30 is bound to the flexible circuit board FPC in the first border area 1410, and the orthographic projection of the flexible circuit board on the display panel 10 does not overlap with the orthographic projection of the first antenna assembly 20 on the display panel 10. Such a configuration can prevent the metal film layer or metal element in the flexible circuit board from blocking the first antenna assembly 20 and affecting the radiation performance of the first antenna assembly 20.

[0068] Optional, such as Figure 6 As shown, the display module further includes a glass cover plate 50 , which is disposed on the light emitting side of the display panel 10 .

[0069] In the related art, a metal isolation column is usually provided in the transition area 130, and the light-emitting material layer and the cathode layer are disconnected at the metal isolation column, thereby reducing the risk of water and oxygen invading the image display area 120 from the opening area 110 through the cathode layer, thereby improving the black spot phenomenon at the edge of the hole of the display panel. For example, please refer to Figure 8 , Figure 8 Schematic diagram of the structure of the metal isolation column in the transition zone in the related art, such as Figure 8As shown, in the direction perpendicular to the substrate 100, the metal isolation column 130A is arranged between the substrate 100 and the cathode layer (not shown in the figure), wherein the metal isolation column 130A is arranged in the same layer as the second source-drain metal layer 1211 in the display area 120, that is, the metal isolation column 130A is formed simultaneously in the preparation process of the second source-drain metal layer 1211. Exemplarily, the metal isolation column 130A is a composite metal layer, which includes a titanium metal layer, an aluminum metal layer and a titanium metal layer stacked in sequence, that is, it is a film layer of a Ti-Al-Ti structure. In addition, an isolation column PS, that is, 130B, can be arranged between any two adjacent metal isolation columns 130A, and an isolation dam 130C can also be formed in the transition area 130, and the light-emitting material layer and the cathode layer can be disconnected in the transition area through the metal isolation column 130A, the isolation column 130B and the isolation dam 130C.

[0070] However, when the first antenna component 20 is disposed in the transition zone 130 in the embodiment of the present disclosure, since there cannot be a metal film layer in the area where the first antenna component 20 is located, it is not possible to use Figure 8 The isolation scheme of the metal isolation column shown in the figure requires the use of a non-metallic isolation structure.

[0071] In a possible implementation, the display panel 10 further includes a first isolation structure 130D, the first isolation structure 130D is disposed in the transition region 130, the first isolation structure 130D is disposed in the same layer as at least one of the second barrier layer 1302, the second buffer layer 1303, the second gate insulating layer 1305, the second dielectric layer 1307, and the second passivation layer 1309, and the light emitting material layer 1215 and the cathode layer 1216 are disconnected at the first isolation structure 130D. Exemplarily, the first isolation structure 130D is at least disposed in the second transition region 1320, and may also be disposed in the first transition region 1310.

[0072] Optionally, the first isolation structure 130D is an isolation groove, which is arranged in the substrate 100, the second blocking layer 1302, the second buffer layer 1303, the second gate insulation layer 1305, the second dielectric layer 1307 and the second passivation layer 1309, and the isolation groove at least passes through the second blocking layer 1302, the second buffer layer 1303, the second gate insulation layer 1305, the second dielectric layer 1307 and the second passivation layer 1309.

[0073] For example, Figure 5As shown, the isolation groove is formed by a through hole penetrating the second barrier layer 1302, the second buffer layer 1303, the second gate insulating layer 1305, the second dielectric layer 1307 and the second passivation layer 1309, and a groove on the substrate 100, that is, the bottom of the isolation groove extends to the inside of the substrate 100, and the light-emitting material layer 1215 and the cathode layer 1216 are disconnected at the isolation groove. In a specific implementation, in order to ensure that there is no metal film layer in the transition region 130 where the first antenna component 20 is located, in the process of preparing the light-emitting material layer 1215 and the cathode layer 1216, it can be controlled The boundary of the light-emitting material layer 1215 and the cathode layer 1216 is located at the boundary between the isolation area 130 and the display area 120. When the boundary portion of the light-emitting material layer 1215 and the cathode layer 1216 exceeds the display area 120 and enters the isolation area 130, it will also be disconnected by the isolation groove. Due to the blocking of the isolation groove, the light-emitting material and the cathode material will no longer extend into the isolation area 130, and the first antenna component 20 in the embodiment of the present disclosure is located in the first transition area 1310 away from the display area 120, thereby further ensuring that there is no cathode layer in the first transition area 1310.

[0074] Optionally, there are multiple first isolation structures 130D, and the multiple first isolation structures 130D are evenly distributed in the direction from the opening area 110 to the display area 120 .

[0075] In one possible implementation, see Figure 6 and Figure 7 ,in Figure 7 for Figure 6 Schematic diagram of the film layer structure of the heat dissipation component in the direction of the BB' section line, the display module also includes a heat dissipation component 40, the heat dissipation component 40 is arranged between the substrate 100 and the first antenna component 20, the heat dissipation component 40 includes an adhesive layer 410, a buffer layer 420 and a heat dissipation layer 430 stacked in sequence along the direction away from the display area, a first opening 440 and a first groove 450 are provided on the heat dissipation component 40, the orthographic projection of the first opening 440 on the substrate overlaps with the orthographic projection of the opening area 110 on the substrate, the first groove 450 is arranged on the surface of the heat dissipation component 40 adjacent to the first antenna component 20, the first groove 450 at least penetrates the heat dissipation layer 430, and the orthographic projection of the first groove 450 on the substrate overlaps with the orthographic projection of the first antenna component 20 on the substrate.

[0076] Exemplarily, the bonding layer 410 uses EMBO glue to achieve bonding between the heat dissipation component 40 and the display panel substrate. The buffer layer 420 can use foam (SCF) and is located between the heat dissipation layer 430 and the bonding layer 410. The material of the heat dissipation layer 430 includes but is not limited to copper.

[0077] In the embodiment of the present disclosure, in the direction perpendicular to the substrate, that is, in the thickness direction of the display panel, there should be no metal layer blocking the area above and below the area where the first antenna component 20 is located, so it is necessary to hollow out the heat dissipation metal layer (that is, the heat dissipation layer 430) at the area corresponding to the first antenna component 20 in the heat dissipation component 40 to prevent the heat dissipation layer 430 from blocking the first antenna component 20. In specific implementation, if the first antenna component 20 is located in the first sub-transition region 1311, then at least the heat dissipation layer 430 in the first sub-transition region 3310 needs to be hollowed out, and the groove structure formed in the hollowed-out area is the first groove 450.

[0078] It can be understood that in other embodiments, the first groove 450 can also be a through hole structure, that is, in the heat dissipation component 40, a through hole structure penetrating the heat dissipation layer 420, the buffer layer 420 and the bonding layer 410 is formed in the first sub-transition zone 1311. By setting the through hole structure, the metal layer can also be prevented from blocking the first antenna component 20.

[0079] In a possible implementation, the display module further includes a second antenna component and / or a third antenna component, wherein the second antenna component is disposed on the light emitting side of the display panel 10 , and the third antenna component is disposed in the border area 140 of the display panel 10 .

[0080] In the disclosed embodiment, the second antenna assembly may be a packaged antenna disposed on the light emitting side of the display panel 10 in an external manner, that is, the orthographic projection of the second antenna assembly on the display panel is located within the display area 120. The third antenna assembly may be a packaged antenna disposed on the side of the display panel frame area 140 through a groove in the metal middle frame.

[0081] Exemplarily, the display module includes a first antenna component 20, a second antenna component and a third antenna component. At this time, the antenna radiation direction of the display module can cover the light-emitting side and the side of the display panel, so that the display module can maintain a good signal radiation intensity in various holding postures or placement states to achieve the best communication effect. It is understandable that the second antenna component and the third antenna component can be any structure in the related art of digging a groove on the side of the display panel to set a packaged antenna or externally mounting a packaged antenna above the display panel, and the embodiments of the present disclosure are not limited thereto.

[0082] Compared with the related art, the improvements of the embodiments of the present disclosure mainly include:

[0083] (1) forming a first antenna component on the backlight side of the display panel, and the first antenna component is located in the frame area of ​​the opening A, that is, in the transition area;

[0084] (2) During the display panel manufacturing process, various metal film layers in the transition region, such as the gate layer, source and drain metal layer, metal isolation column, cathode layer, etc., are removed to avoid blocking the first antenna assembly;

[0085] (3) A portion of the metal heat dissipation layer on the heat dissipation component is dug out to form a first groove, where the first groove corresponds to the position of the first antenna component to prevent the metal heat dissipation layer from blocking the first antenna component.

[0086] Through the above improved design, it is possible to set the first antenna component in the transition area, and the radio frequency signal transmitted or received by the first antenna component can pass through the light emitting side of the display panel.

[0087] The display panel in the implementation of the present disclosure may be an organic light-emitting diode (OLED) display panel. It is understandable that the display panel may be set to other types according to actual needs, for example, the display panel may also be a quantum dot light emitting diode (QLED) display panel or a micro light emitting diode (Micro LED) display panel.

[0088] Based on the same inventive concept, the second aspect of the present disclosure provides a method for preparing a display module, please refer to Fig.10 and Fig.11 , Fig.10 A flowchart showing a method for preparing a module is shown. Fig.11 The preparation process flow chart of the display module is as follows: Figure 10 to Figure 11 As shown, the method for preparing the display module includes the following steps:

[0089] Step S101, preparing a display panel, the display panel comprising a substrate, a display area, a transition area and an opening area formed on the substrate, the display area and the transition area surrounding the opening area, the transition area being located between the display area and the opening area, the display area comprising a metal layer and a first non-metal layer stacked on the substrate, the transition area comprising a second non-metal layer, and the second non-metal layer being arranged on the same layer as the first non-metal layer;

[0090] Step S102, preparing a first antenna component by a printing process on a side of the substrate away from the display area, the orthographic projection of the first antenna component on the substrate is located in the transition area, the first antenna component includes an antenna electrode layer, a dielectric layer and a reflective layer stacked in sequence along a direction away from the display area, and the thickness of the dielectric layer in the first transition area is greater than or equal to the first thickness.

[0091] Optionally, before step S102, it also includes: preparing a heat dissipation component 40 on the side of the substrate away from the barrier layer, the heat dissipation component 40 includes an adhesive layer 410, a buffer layer 420 and a heat dissipation layer 430 stacked in sequence along a direction away from the substrate, a first opening 440 and a first groove 450 are formed on the heat dissipation component 40, the orthographic projection of the first opening 440 on the substrate overlaps with the orthographic projection of the opening area 110 on the substrate, the first groove 450 is arranged on the surface away from the substrate, the first groove 450 at least penetrates the heat dissipation layer 430, and the orthographic projection of the first groove 450 on the substrate can cover the orthographic projection of the first antenna component 20 on the substrate.

[0092] Optionally, the first antenna component includes an antenna electrode layer 210, a dielectric layer 220 covering the antenna electrode layer 210, and a reflective layer 230 covering the dielectric layer 220, which are sequentially stacked in a direction away from the substrate. The specific process of preparing the first antenna component by the printing process includes:

[0093] (1) In a display panel having a heat dissipation component (such as Fig.11 The antenna electrode layer 210 is prepared by a 3D printing process on the backlight side of the substrate (shown in (a)). The antenna electrode layer 210 includes a plurality of antenna electrodes, that is, antenna radiation units. The orthographic projection of each antenna electrode on the substrate is located in the first sub-transition region 1311. The preparation process is as follows Fig.11 As shown in (b).

[0094] (2) A dielectric layer 200 covering the antenna electrode layer 210 is prepared on the antenna electrode layer 210 by a CVD process, wherein the dielectric layer 220 has a thickness d in the first sub-transition region 1311, and d is greater than 100 μm. The preparation process is as follows: Fig.11 As shown in (c), when the thickness d is greater than 100 microns, sufficient net space can be formed to ensure the antenna performance.

[0095] Optionally, the dielectric layer 220 may be silicon oxide or silicon nitride. In other embodiments, the dielectric layer may also be prepared by other processes, such as a coating process.

[0096] (3) A reflective layer 230 covering the dielectric layer 220 is prepared on the dielectric layer 220 by a 3D printing process. The preparation process is as follows: Fig.11 As shown in (d).

[0097] (4) The antenna electrode layer 210 and the reflective layer 230 are bonded together with the RF integrated circuit 30, such as Fig.11 In specific implementation, each antenna electrode is bound to the RF integrated circuit 30 via the first feeder 240, and the reflective layer is bound to the RF integrated circuit 30 via the second feeder.

[0098] Based on the same inventive concept, the third aspect of the present disclosure provides a display device, including the display module as described above. Exemplarily, the display device can be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, a navigator, etc., which is not limited in this embodiment.

[0099] Obviously, the above embodiments of the present disclosure are merely examples for clearly illustrating the present disclosure, and are not limitations on the implementation methods of the present disclosure. For ordinary technicians in this field, other different forms of changes or modifications can be made on the basis of the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present disclosure are still within the protection scope of the present disclosure.

Claims

1. A display module, characterized in that: including a display panel and a first antenna assembly; The display panel includes a substrate, a display area, a transition area and an opening area formed on the substrate, the display area and the transition area surround the opening area, the transition area is located between the display area and the opening area, the display area includes a metal layer and a first non-metal layer stacked on the substrate, the transition area includes a second non-metal layer, and the second non-metal layer is arranged on the same layer as the first non-metal layer; The first antenna component is arranged on a side of the substrate away from the display area, and the orthographic projection of the first antenna component on the substrate is located in the transition area. The first antenna component includes an antenna electrode layer, a dielectric layer and a reflective layer stacked in sequence along a direction away from the display area, and the thickness of the dielectric layer in the transition area is greater than or equal to the first thickness.

2. The display module according to claim 1, characterized in that: The transition area includes a first transition area surrounding the opening area and a second transition area located between the first transition area and the display area, and the orthographic projection of the first antenna component on the substrate is located in the first transition area.

3. The display module according to claim 2, characterized in that: The display panel also includes a border area located outside the display area, the border area includes a first border area and a second border area arranged opposite to each other, the distance between the first border area and the opening area is smaller than the distance between the second border area and the opening area, the first transition area includes a first sub-transition area close to the first border area and a second sub-transition area close to the second border area, and the orthographic projection of the first antenna component on the substrate is located in the first sub-transition area.

4. The display module according to claim 3, characterized in that: The display module also includes a radio frequency integrated circuit, which is arranged on a side of the substrate away from the display area. The orthographic projection of the first antenna component on the substrate is located in the first border area. The first antenna component also includes a first feed line and a second feed line. The antenna electrode layer includes at least one antenna electrode. One end of the first feed line is connected to the antenna electrode, and the other end of the first feed line extends from the first sub-transition area to the first border area and is connected to the radio frequency integrated circuit. One end of the second feed line is connected to the reflective layer, and the other end of the second feed line extends from the first sub-transition area to the first border area and is connected to the radio frequency integrated circuit.

5. The display module according to claim 1, characterized in that: The display area includes a first barrier layer, a first buffer layer, a driving circuit layer and a light-emitting function layer stacked in sequence on the substrate; the driving circuit layer includes a first active layer, a first gate insulating layer, a first gate, a first dielectric layer, a first source-drain metal layer, a first passivation layer and a first flat layer stacked in sequence on the substrate; the light-emitting material layer includes a pixel defining layer, an anode, a light-emitting material layer and a cathode layer stacked in sequence on the first flat layer; the first barrier layer, the first buffer layer, the first gate insulating layer, the first dielectric layer and the first passivation layer extend to the transition area to form a second barrier layer, a second buffer layer, a second gate insulating layer, a second dielectric layer and a second passivation layer respectively; the second non-metallic layer includes the second barrier layer, the second buffer layer, the second gate insulating layer, the second dielectric layer and the second passivation layer.

6. The display module according to claim 5, characterized in that: The display panel also includes a first isolation structure, which is arranged in the transition area. The first isolation structure is arranged on the same layer as at least one of the second blocking layer, the second buffer layer, the second gate insulation layer, the second dielectric layer and the second passivation layer, and the light-emitting material layer and the cathode layer are disconnected at the first isolation structure.

7. The display module according to claim 6, characterized in that: The first isolation structure is an isolation groove, which is arranged in the substrate, the second barrier layer, the second buffer layer, the second gate insulation layer, the second dielectric layer and the second passivation layer, and the isolation groove at least penetrates the second barrier layer, the second buffer layer, the second gate insulation layer, the second dielectric layer and the second passivation layer.

8. The display module according to claim 6, characterized in that: There are multiple first isolation structures, and the multiple first isolation structures are evenly distributed in the direction from the opening area to the display area.

9. The display module according to claim 1, characterized in that: The display module also includes a heat dissipation component, which is arranged between the substrate and the first antenna component. The heat dissipation component includes an adhesive layer, a buffer layer and a heat dissipation layer stacked in sequence in a direction away from the display area. A first opening and a first groove are provided on the heat dissipation component. The orthographic projection of the first opening on the substrate overlaps with the orthographic projection of the opening area on the substrate. The first groove is arranged on the surface of the heat dissipation component adjacent to the first antenna component. The first groove at least penetrates the heat dissipation layer, and the orthographic projection of the first groove on the substrate overlaps with the orthographic projection of the first antenna component on the substrate.

10. The display module according to claim 1, characterized in that: The display module further includes a second antenna component and / or a third antenna component. The second antenna component is arranged on the light-emitting side of the display panel, and the third antenna component is arranged in the frame area of ​​the display panel.

11. The display module according to claim 4, characterized in that: The display module also includes a flexible circuit board, the radio frequency integrated circuit is bound to the flexible circuit board in the first border area, and the orthographic projection of the flexible circuit board on the display panel has no overlap with the orthographic projection of the first antenna assembly on the display panel.

12. A method for preparing a display module, characterized in that: The following steps are involved: Prepare a display panel, the display panel comprising a substrate, a display area, a transition area and an opening area formed on the substrate, the display area and the transition area surround the opening area, the transition area is located between the display area and the opening area, the display area comprises a metal layer and a first non-metal layer stacked on the substrate, the transition area comprises a second non-metal layer, and the second non-metal layer is arranged on the same layer as the first non-metal layer; A first antenna component is prepared by a printing process on a side of the substrate away from the display area, the orthographic projection of the first antenna component on the substrate is located in the transition area, the first antenna component includes an antenna electrode layer, a dielectric layer and a reflective layer stacked in sequence in a direction away from the display area, and the thickness of the dielectric layer in the first transition area is greater than or equal to the first thickness.

13. A display device, characterized in that: Comprising the display module as described in any one of claims 1 to 11.

Images