Display module and display equipment

Abstract

The embodiment of the invention provides a display module and display equipment, relates to the technical field of display, and is used for improving the display effect of the display module. The display module comprises a display panel, a first cover plate, a first bonding layer, a second cover plate, a second bonding layer and a filling part. The first cover plate is located on the light emitting side of the display panel. The first bonding layer is located between the display panel and the first cover plate. The second cover plate is located on the side, away from the display panel, of the first cover plate, and the orthographic projection of the first cover plate towards the second cover plate is located in the boundary range of the second cover plate in the stacking direction of the first cover plate and the second cover plate. The second bonding layer is located between the second cover plate and the first cover plate. The filling part covers the side face corresponding to at least part of the side edge of the first cover plate, one end of the filling part is connected with the first bonding layer, and the other end of the filling part is connected with the second bonding layer. The display module is used for displaying images.

Description

Technical Field

[0001] The present disclosure relates to the field of display technologies, and particularly to a display module and a display device. Background Art

[0002] With the continuous development of display technologies, display devices have gradually become ubiquitous in people's lives. Among them, organic light-emitting diode (OLED) display panels are widely used in display devices such as mobile phones, televisions, and laptop computers because of their advantages of self-luminescence, low power consumption, wide viewing angles, fast response speeds, and high contrast ratios. Summary of the Invention

[0003] An object of embodiments of the present disclosure is to provide a display module and a display device for improving the display effect of the display module.

[0004] To achieve the above object, embodiments of the present disclosure provide the following technical solutions:

[0005] On the one hand, a display module is provided. The display module includes a display panel, a first cover plate, a first adhesive layer, a second cover plate, a second adhesive layer, and a filling portion. The first cover plate is located on the light-emitting side of the display panel. The first adhesive layer is located between the display panel and the first cover plate. The second cover plate is located on the side of the first cover plate away from the display panel. Along the stacking direction of the first cover plate and the second cover plate, the orthographic projection of the first cover plate onto the second cover plate is within the boundary range of the second cover plate. The second adhesive layer is located between the second cover plate and the first cover plate. The filling portion covers at least a part of the side surface corresponding to the side edge of the first cover plate. One end of the filling portion is connected to the first adhesive layer, and the other end is connected to the second adhesive layer.

[0006] In the above display module, by providing a filling portion in the display module, and the filling portion covers at least a part of the side surface corresponding to the side edge of the first cover plate, it is possible to avoid the existence of closed air bubbles between the side surface corresponding to the side edge of the first cover plate and the filling portion, or to reduce the probability of the existence of closed air bubbles between the side surface corresponding to the side edge of the first cover plate and the filling portion, which is beneficial to improving the overall sealing performance and stability of the display module, and thus beneficial to improving the display effect of the display module.

[0007] In the process of manufacturing the display module, first, a cover plate assembly is separately manufactured. The cover plate assembly includes a first cover plate, a first adhesive layer, a second cover plate, a second adhesive layer, and a filling portion. Then, the cover plate assembly is attached to the light-emitting side of the display panel to form an initial display module. Finally, the edge portion of the initial display module is removed to form the display module.

[0008] When forming a display module by removing the edge portion of the initial display module, the laser cutting process can be used to remove the edge portion of the initial display module to form a display module. By connecting one end of the filling portion to the first adhesive layer and the other end to the second adhesive layer, an air gap between the first adhesive layer and the second adhesive layer in the area where the filling portion is located can be avoided. Furthermore, when using the laser cutting process to remove the edge portion of the initial display module to form a display module, the probability that the laser refracts at the air gap between the first adhesive layer and the second adhesive layer and damages the display panel can be reduced. Thus, the probability of defects such as growing dark spots (GDS) on the display panel can be reduced, which is beneficial to improving the display effect of the display panel and further beneficial to enhancing the display effect of the display module.

[0009] In some embodiments, the first cover plate includes a cover plate body and an edge portion. The edge portion surrounds the cover plate body and is connected to the cover plate body. Along a preset direction, the thickness of the edge portion gradually decreases. The preset direction is perpendicular to the thickness direction of the first cover plate and is in any direction from the center of the first cover plate to the edge portion. The edge portion includes a side surface, and the filling portion wraps the edge portion corresponding to at least a part of the side edges of the first cover plate.

[0010] In some embodiments, the cover plate body includes a first surface and a second surface facing away from each other in the thickness direction of the first cover plate. The side surface of the edge portion includes a first sub-side surface, a second sub-side surface, and a third sub-side surface. The first sub-side surface connects the first surface and the second sub-side surface, and the angle between the first sub-side surface and the first surface is an obtuse angle. The third sub-side surface connects the second surface and the second sub-side surface, and the angle between the third sub-side surface and the second surface is an obtuse angle. The filling portion covers at least a part of the first sub-side surface, the second sub-side surface, and the third sub-side surface corresponding to the side edges of the first cover plate.

[0011] In some embodiments, the filling portion is disposed around the first cover plate and covers the side surfaces corresponding to all the side edges of the first cover plate.

[0012] In some embodiments, the display module includes a bending area and a non-bending area, and the bending area and the non-bending area are adjacently disposed. The filling portion covers at least the side surfaces corresponding to the side edges of the bending area.

[0013] In some embodiments, the filling portion also covers the side surfaces corresponding to the side edges of the non-bending area.

[0014] In some embodiments, the material of the filling portion includes at least one of photosensitive glue and optically transparent resin.

[0015] In some embodiments, polyborosiloxane is doped in the material of the filling portion.

[0016] In some embodiments, the fluidity of the material of the filling portion is greater than that of the material of the second adhesive layer.

[0017] In some embodiments, the material of the filling portion is the same as that of the first adhesive layer, and the filling portion and the first adhesive layer are an integral structure.

[0018] In some embodiments, the material of the first adhesive layer is different from that of the filling portion, and the fluidity of the material of the first adhesive layer is greater than that of the material of the second adhesive layer. The filling portion surrounds the first cover plate, and the surface of the filling portion facing away from the second cover plate is higher than the surface of the first cover plate facing away from the second cover plate, so that a groove with the notch facing away from the second cover plate is formed between the filling portion and the first cover plate, and the first adhesive layer is filled in the groove.

[0019] In some embodiments, the display module further includes a third adhesive layer located between the first adhesive layer and the display panel. The fluidity of the material of the third adhesive layer is less than that of the material of the filling portion. Alternatively, the fluidity of the material of the third adhesive layer is greater than that of the material of the second adhesive layer.

[0020] In some embodiments, the fluidity of the material of the first adhesive layer is less than that of the material of the filling portion. The surface of the filling portion facing away from the second cover plate is flush or substantially flush with the surface of the first cover plate facing away from the second cover plate, and the first adhesive layer also covers the surface of the filling portion facing away from the second cover plate.

[0021] In some embodiments, the orthographic projection of the first cover plate onto the second cover plate is within the orthographic projection range of the second adhesive layer onto the second cover plate, and the second adhesive layer also covers the surface of the filling portion facing the second cover plate. Alternatively, the orthographic projection of the second adhesive layer onto the second cover plate is within the orthographic projection range of the first cover plate onto the second cover plate, or the orthographic projection of the second adhesive layer onto the second cover plate coincides with the orthographic projection of the first cover plate onto the second cover plate, and the filling portion also covers the side surface of the second adhesive layer.

[0022] In some embodiments, the material of the first cover plate includes ultra-thin glass.

[0023] In some embodiments, the first cover plate includes a first region and a second region, and the thicknesses of the first region and the second region are different.

[0024] On the other hand, a display device is provided. The display device includes a housing and the display module as described in any of the above embodiments. The display module is embedded in the housing.

[0025] In some embodiments, the display module includes a cover plate assembly, and the cover plate assembly includes a first cover plate and a second cover plate. The housing includes side plates disposed around the display module. The inner side wall surface of the side plates includes a first side wall, a second side wall, and a bearing surface. Along the thickness direction of the display device, the first side wall is farther from the back surface of the display module than the second side wall. The bearing surface is connected between the first side wall and the second side wall. The first side wall surrounds the cover plate assembly, and the second side wall surrounds the display panel in the display module. The edge of the cover plate assembly is supported on the bearing surface.

[0026] The display device further includes a fixing layer located between the bearing surface and the edge of the cover plate assembly. The material of the fixing layer includes an adhesive material, and the elastic modulus of the adhesive material is greater than or equal to 10 Kpa and less than or equal to 500 Kpa. And / or, the peel force between the adhesive material and the bearing surface and the surface peel force between the adhesive material and the cover plate assembly are both greater than or equal to 1500 gf / inch.

[0027] The above display device has the same structure and beneficial technical effects as the display module provided in the above some embodiments, and will not be elaborated herein. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the present disclosure, the following will briefly introduce the drawings required to be used in some embodiments of the present disclosure. Obviously, the drawings in the following description are only the drawings of some embodiments of the present disclosure, and those of ordinary skill in the art can also obtain other drawings according to these drawings. In addition, the drawings in the following description can be regarded as schematic diagrams, and are not limitations on the actual dimensions of the products, the actual processes of the methods, the actual timings of the signals, etc. involved in the embodiments of the present disclosure.

[0029] Figure 1 A plan view of a display device according to some embodiments;

[0030] Figure 2 A cross-sectional view of a display device according to some embodiments;

[0031] Figure 3 A plan view of a display module in a display device according to some embodiments;

[0032] Figure 4 A cross-sectional view of a partial area of a display module according to some embodiments;

[0033] Figure 5 A plan view of a display panel in a display module according to some embodiments;

[0034] Figure 6 A cross-section of a cover plate assembly and a display panel in a display module according to some embodiments Figure 1 ;

[0035] Figure 7 Cross-sectional view of a partial area of a first cover plate within a cover plate assembly according to some embodiments;

[0036] Figure 8 Flowchart of a method for manufacturing a display module according to some embodiments;

[0037] Figure 9 Planar view of a first cover plate and a filling portion within a cover plate assembly according to some embodiments Figure 1 ;

[0038] Figure 10 Planar view of a first cover plate and a filling portion within a cover plate assembly according to some embodiments Figure 2 ;

[0039] Figure 11 Planar view of a first cover plate and a filling portion within a cover plate assembly according to some embodiments Figure 3 ;

[0040] Figure 12 Cross-sectional view of a cover plate assembly and a display panel within a display module according to some embodiments Figure 2 ;

[0041] Figure 13 Cross-sectional view of a cover plate assembly and a display panel within a display module according to some embodiments Figure 3 ;

[0042] Figure 14 Cross-sectional view of a cover plate assembly and a display panel within a display module according to some embodiments Figure 4 ;

[0043] Figure 15 Cross-sectional view of a cover plate assembly and a display panel within a display module according to some embodiments Figure 5 ;

[0044] Figure 16 Cross-sectional view of a cover plate assembly and a display panel within a display module according to some embodiments Figure 6 ;

[0045] Figure 17 Cross-sectional view of a cover plate assembly and a display panel within a display module according to some embodiments Figure 7 ;

[0046] Figure 18 Cross-sectional view of a cover plate assembly and a display panel within a display module according to some embodiments Figure 8 ;

[0047] Figure 19 Cross-sectional view of a cover plate assembly and a display panel within a display module according to some embodiments Figure 9 ;

[0048] Figure 20 The cross-section of the cover plate assembly and the display panel in the display module according to some embodiments Figure 10 ;

[0049] Figure 21 The cross-section of the cover plate assembly and the display panel in the display module according to some embodiments Figure 10 One. Detailed implementation manners

[0050] Next, in combination with the accompanying drawings, the technical solutions in some embodiments of the present disclosure will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments provided by the present disclosure, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present disclosure.

[0051] Unless otherwise required by the context, throughout the specification and claims, the term "comprising" is interpreted as open and inclusive, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "examples" or "some examples", etc., are intended to indicate that the specific features, structures, materials or characteristics related to the embodiment or example are included in at least one embodiment or example of the present disclosure. The schematic representations of the above terms are not necessarily referring to the same embodiment or example. In addition, the described specific features, structures, materials or characteristics can be included in any one or more embodiments or examples in any appropriate manner.

[0052] Hereinafter, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present disclosure, unless otherwise stated, the meaning of "a plurality" is two or more.

[0053] "At least one of A, B, and C" has the same meaning as "at least one of A, B, or C", and all include the following combinations of A, B, and C: only A, only B, only C, the combination of A and B, the combination of A and C, the combination of B and C, and the combination of A, B, and C.

[0054] "A and / or B" includes the following three combinations: only A, only B, and the combination of A and B.

[0055] As used herein, "about", "substantially" or "approximately" includes the stated value and the average value within an acceptable deviation range of the specific value, where the acceptable deviation range is determined by a person of ordinary skill in the art considering the measurement being discussed and the error associated with the measurement of the specific quantity (i.e., the limitations of the measurement system).

[0056] As used herein, "parallel", "perpendicular", "equal" include the stated situation and situations similar to the stated situation, and the range of the similar situations is within an acceptable deviation range, where the acceptable deviation range is determined by a person of ordinary skill in the art considering the measurement being discussed and the error associated with the measurement of the specific quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallel and approximate parallel, and the acceptable deviation range of approximate parallel can be, for example, within 5° deviation; "perpendicular" includes absolute perpendicular and approximate perpendicular, and the acceptable deviation range of approximate perpendicular can also be, for example, within 5° deviation. "Equal" includes absolute equal and approximate equal, and the acceptable deviation range of approximate equal can be, for example, that the difference between the two equal ones is less than or equal to 5% of either one of them.

[0057] It should be understood that when a layer or element is referred to as being on another layer or substrate, it can be that the layer or element is directly on the other layer or substrate, or there can also be an intermediate layer between the layer or element and the other layer or substrate.

[0058] Exemplary embodiments are described herein with reference to cross-sectional views and / or plan views that are idealized exemplary drawings. In the drawings, the thickness of the layer and the area of the region are enlarged for clarity. Therefore, variations in the shape relative to the drawings due to, for example, manufacturing techniques and / or tolerances can be envisioned. Accordingly, the exemplary embodiments should not be construed as being limited to the shape of the regions shown herein, but include shape deviations caused by, for example, manufacturing. For example, an etched region shown as rectangular will generally have curved features. Thus, the regions shown in the drawings are schematic in nature, and their shapes are not intended to show the actual shape of the regions of the device and are not intended to limit the scope of the exemplary embodiments.

[0059] It should be noted that in the drawings of the present disclosure, components such as F1 / F2 / F3 / F can be F, or can also be F1, F2 or F3. For example, 1(10) indicates that component 1 belongs to component 10. Other similar reference numerals appearing in the drawings follow the above description.

[0060] As Figure 1 shown, some embodiments of the present disclosure provide a display device 100.

[0061] Exemplarily, the display device 100 can be any device that displays images whether in motion (e.g., video) or stationary (e.g., still images), and whether text or not. More specifically, it is contemplated that the embodiments can be implemented in or associated with a variety of electronic devices, such as (but not limited to) mobile phones, wireless devices, personal data assistants (PDAs), handheld or portable computers, GPS receivers / navigators, cameras, MP4 video players, camcorders, game consoles, watches, clocks, calculators, television monitors, flat panel displays, computer monitors, automotive displays (e.g., odometer displays, etc.), navigators, cockpit controllers and / or displays, displays for camera views (e.g., displays for rearview cameras in vehicles), electronic photos, electronic billboards or signs, projectors, architectural structures, packaging, and aesthetic structures (e.g., displays for images of a piece of jewelry), etc. Figure 1 In the figure, the display device 100 is taken as an example of a mobile phone for illustration.

[0062] Exemplarily, the display device 100 can be an electroluminescent display device or a photoluminescent display device. When the display device 100 is an electroluminescent display device, the electroluminescent display device can be an organic light-emitting diode (OLED) display device or a quantum dot light-emitting diode (QLED) display device. When the display device 100 is a photoluminescent display device, the photoluminescent display device can be a quantum dot photoluminescent display device.

[0063] The display device 100 can also be a micro light-emitting diode (Micro LED) display device or a mini light-emitting diode (Mini LED) display device.

[0064] The display device 100 can also be a thin film transistor-liquid crystal display (TFT-LCD) device.

[0065] In some embodiments, as Figure 2 shown, Figure 2 is a cross-sectional view of the display device 100 according to some embodiments. The display device 100 can include a display module 10 and a housing 20. The display module 10 is embedded in the housing 20.

[0066] By embedding the display module 10 in the housing 20, the housing 20 can play a role in protecting the display module 10, which is conducive to improving the service life of the display module 10, and further conducive to improving the service life of the display device 100.

[0067] Exemplarily, please continue to refer to Figure 2 , the housing 20 in the display device 100 may include side plates 20a arranged around the display module 10.

[0068] The inner wall surface 20aa of the side plate 20a may include a first side wall 201, a second side wall 202, and a bearing surface 203. Along the thickness direction (i.e., the third direction Z) of the display device 100, the first side wall 201 is farther from the back surface 10b of the display module 10 than the second side wall 202, and the bearing surface 203 is connected between the first side wall 201 and the second side wall 202.

[0069] It should be noted that the front surface 10a of the display module 10 refers to the side where the display module 10 can display the picture. The above-mentioned back surface 10b of the display module 10 refers to the side opposite to the front surface 10a of the display module 10.

[0070] Exemplarily, please continue to refer to Figure 2 , in the case where the housing 20 in the display device 100 includes side plates 20a arranged around the display module 10, the housing 20 in the display device 100 may further include a bottom plate 20b. The bottom plate 20b is located on one side of the display module 10 and is close to the back surface 10b of the display module 10. The bottom plate 20b and the side plates 20a are connected.

[0071] For example, the bottom plate 20b and the side plates 20a in the housing 20 may be of an integral structure.

[0072] Exemplarily, the material of the housing 20 in the display device 100 may include metal and / or plastic, etc.

[0073] For example, in the case where the material of the housing 20 in the display device 100 includes metal, the material of the housing 20 may include stainless steel, etc.

[0074] Again, for example, in the case where the material of the housing 20 in the display device 100 includes plastic, the material of the housing 20 may include organic plastic, etc.

[0075] The above-mentioned display module 10 will be described in detail below.

[0076] In some embodiments, as Figure 3 shown, Figure 3The following is a plan view of the display module 10 within the display device 100 according to some embodiments. The display module 10 within the display device 100 may include a bending region 101 and a non-bending region 102. The bending region 101 and the non-bending region 102 are adjacently arranged.

[0077] It should be noted that the bending region 101 of the above display module 10 refers to the region that needs to be bent when the display module 10 is bent. The non-bending region 102 of the above display module 10 refers to the region that does not bend or bends to a lesser extent when the display module 10 is bent.

[0078] Exemplarily, please continue to refer to Figure 3 , the non-bending region 102 of the display module 10 may be located on opposite sides of the bending region 101.

[0079] Exemplarily, please continue to refer to Figure 3 , in the unfolded state of the display module 10, both the bending region 101 and the non-bending region 102 of the display module 10 can perform display (i.e., full-screen display), and the user can interact with the display module 10 through the bending region 101 and the non-bending region 102 of the display module 10.

[0080] In the folded state of the display module 10, the bending region 101 of the display module 10 is bent, which is beneficial to reducing the planar size of the display module 10.

[0081] In some embodiments, as Figure 4 shown, Figure 4 The following is a cross-sectional view of a partial region of the display module 10 according to some embodiments. The display module 10 includes a display panel 1.

[0082] Exemplarily, the display panel 1 may be an electroluminescent display panel or a photoluminescent display panel. In the case where the display panel 1 is an electroluminescent display panel, the electroluminescent display panel may be an organic electroluminescent display panel or a quantum dot electroluminescent display panel. In the case where the display panel 1 is a photoluminescent display panel, the photoluminescent display panel may be a quantum dot photoluminescent display panel.

[0083] The display panel 1 may also be a micro light-emitting diode display panel or a submillimeter light-emitting diode display panel.

[0084] The display panel 1 may also be a thin-film transistor liquid crystal display panel.

[0085] Exemplarily, as Figure 5 shown, Figure 5 The following is a plan view of the display panel 1 within the display module 10 according to some embodiments. The display panel 1 may be a rectangular structure.

[0086] It should be noted that the above "rectangular structure" means that the shape of the boundary of the display panel 1 is generally rectangular, but it is not limited to a standard rectangle. That is, the "rectangle" here includes not only the shape of a standard rectangle, but also, considering the process conditions, shapes similar to a rectangle. For example, as Figure 5 shown, the long side and the short side of the rectangle are curved at each intersecting position (i.e., the corner G), that is, the corner G is smooth, so that the shape of the boundary of the display panel 1 in the plan view is a rounded rectangle.

[0087] Alternatively, the display panel 1 can be a circular structure or other shapes with corners.

[0088] Hereinafter, taking the display panel 1 as a rectangular structure as an example, some embodiments of the present disclosure will be schematically described. However, the embodiments of the present disclosure include but are not limited to this, and the shape of the display panel 1 can also consider any other shape.

[0089] In some embodiments, please continue to refer to Figure 4 and Figure 5 , the display panel 1 in the display module 10 has a display area AA for displaying an image and a peripheral area AN located on at least one side of the display area AA.

[0090] Exemplarily, the peripheral area AN of the display panel 1 can be located on one side of the display area AA of the display panel 1.

[0091] Alternatively, the peripheral area AN of the display panel 1 can be located on opposite sides of the display area AA of the display panel 1.

[0092] Or, please continue to refer to Figure 5 , the peripheral area AN of the display panel 1 can surround the display area AA of the display panel 1.

[0093] It should be noted that the specific setting manner of the peripheral area AN of the display panel 1 is related to the specific design of the display panel 1 and can be designed according to actual needs. This is only an exemplary description here and does not limit the present disclosure.

[0094] Exemplarily, please continue to refer to Figure 5 , a plurality of light-emitting devices F are arranged in the display area AA of the display panel 1, and the light-emitting device F is the smallest light-emitting unit in the display area AA.

[0095] Multiple light-emitting devices F within the display area AA of the display panel 1 can emit light of the same color. The display panel 1 may further include a color filter layer disposed on the light-emitting side of the multiple light-emitting devices F. For example, the multiple light-emitting devices F within the display area AA of the display panel 1 can all emit light of colors such as white light, red light, green light, or blue light. In this case, the color light emitted by the light-emitting devices F remains the same color light or is converted into other color light after passing through the color filter layer, so that when the multiple light-emitting devices F emit the same color light, the display panel 1 can achieve multi-color light emission.

[0096] Alternatively, the multiple light-emitting devices F within the display area AA of the display panel 1 can emit light of different colors. For example, the multiple light-emitting devices F within the display area AA of the display panel 1 can include a first-color light-emitting device F1 that emits first-color light, a second-color light-emitting device F2 that emits second-color light, and a third-color light-emitting device F3 that emits third-color light, thereby achieving multi-color light emission of the display panel 1.

[0097] Among them, the first-color light-emitting device F1 can be a red light-emitting device that emits red light. The second-color light-emitting device F2 can be a green light-emitting device that emits green light. The third-color light-emitting device F3 can be a blue light-emitting device that emits blue light.

[0098] Alternatively, the first-color light-emitting device F1 can also be a green light-emitting device or a blue light-emitting device. The second-color light-emitting device F2 can also be a red light-emitting device or a blue light-emitting device. The third-color light-emitting device F3 can also be a red light-emitting device or a green light-emitting device.

[0099] Exemplarily, please continue to refer to Figure 4 and Figure 5 , a gate driver circuit (Gate driver On Array, GOA) and control signal lines (such as clock signal lines, power supply voltage signal lines, etc.) can be disposed within the peripheral area AN of the display panel 1. However, the functions of the peripheral area AN of the display panel 1 include but are not limited to this.

[0100] In some embodiments, please continue to refer to Figure 4 , the display module 10 may further include a back film 2. The back film 2 can be located on the non-light-emitting side 1b of the display panel 1.

[0101] It should be noted that the light-emitting side 1a of the display panel 1 refers to the side where the display panel 1 can emit light. The above-mentioned non-light-emitting side 1b of the display panel 1 refers to the side opposite to the light-emitting side 1a of the display panel 1.

[0102] By placing the back film 2 in the display module 10 on the non-light-emitting side 1b of the display panel 1, the back film 2 can provide a supporting force to the display panel 1, which is beneficial to improving the strength of the display module 10.

[0103] Exemplarily, the material of the back film 2 in the display module 10 may include one or more (greater than or equal to two) of polyethylene terephthalate (PET), polyimide (PI), and cycloolefin polymer (COP).

[0104] In some embodiments, please continue to refer to Figure 4 , in the case where the display module 10 includes the display panel 1 and the back film 2, the display module 10 may further include a first adhesive layer 31. The first adhesive layer 31 may be located between the display panel 1 and the back film 2.

[0105] Exemplarily, the material of the first adhesive layer 31 in the display module 10 may include optically clear adhesive (OCA), etc. The optically clear adhesive has characteristics such as colorless transparency and high light transmittance, which is beneficial to ensuring the light transmittance of the display module 10.

[0106] In some embodiments, please continue to refer to Figure 4 , the display module 10 may further include a support layer 4. The support layer 4 may be located on the non-light-emitting side 1b of the display panel 1.

[0107] By placing the support layer 4 in the display module 10 on the non-light-emitting side 1b of the display panel 1, better support and protection can be provided to the display panel 1. During the use of the display module 10, the influence of external stress on the display panel 1 will be effectively alleviated by the support layer 4, thereby reducing the probability of damage to the display panel 1 under the action of external stress, which is beneficial to improving the reliability of the display module 10 and further beneficial to improving the reliability of the display device 100.

[0108] Exemplarily, the material of the support layer 4 in the display module 10 may include at least one of metal and fiber, etc.

[0109] For example, the material of the support layer 4 in the display module 10 may include metal.

[0110] Again, for example, the material of the support layer 4 in the display module 10 may include fiber.

[0111] For another example, the material of the support layer 4 in the display module 10 may include metal and fiber.

[0112] Exemplarily, please continue to refer to Figure 4, when the display module 10 includes the back film 2, the support layer 4 can be located on the side of the back film 2 away from the display panel 1.

[0113] In some embodiments, please continue to refer to Figure 4 , when the display module 10 includes the back film 2 and the support layer 4, the display module 10 can further include a second adhesive layer 32. The second adhesive layer 32 can be located between the back film 2 and the support layer 4.

[0114] Exemplarily, the material of the second adhesive layer 32 in the display module 10 can include optically clear adhesive (OCA), etc. The optically clear adhesive has characteristics such as colorless transparency and high light transmittance, which is beneficial to ensuring the light transmittance of the display module 10.

[0115] In some embodiments, please continue to refer to Figure 4 , the display module 10 can further include a mounting layer 5. The mounting layer 5 can be located on the non-light-emitting side 1b of the display panel 1.

[0116] Exemplarily, please continue to refer to Figure 4 , when the display module 10 includes the support layer 4, the mounting layer 5 can be located on the side of the support layer 4 away from the display panel 1.

[0117] In some embodiments, please continue to refer to Figure 4 , the display module 10 can further include a cover plate assembly 6. The cover plate assembly 6 can be located on the light-emitting side 1a of the display panel 1.

[0118] By making the cover plate assembly 6 in the display module 10 located on the light-emitting side 1a of the display panel 1, the display panel 1 can be separated from the external environment, which can provide protection for the display panel 1 and is beneficial to extending the service life of the display panel 1.

[0119] In some embodiments, please continue to refer to Figure 4 , the display module 10 can further include a protective film 7. The protective film 7 can be located on the light-emitting side 1a of the display panel 1.

[0120] By providing the protective film 7 on the light-emitting side 1a of the display panel 1 in the display module 10, the impact resistance of the display panel 1 can be improved, the probability of the display panel 1 failing can be reduced, and thus it is beneficial to improve the reliability of the display module 10 and the display device 100.

[0121] Exemplarily, please continue to refer to Figure 4 , when the display module 10 includes the cover plate assembly 6, the protective film 7 can be located on the side of the cover plate assembly 6 away from the display panel 1.

[0122] In some embodiments, please continue to refer to Figure 4, when the display module 10 includes a cover plate assembly 6 and a protective film 7, the display module 10 may further include a third adhesive layer 33. The third adhesive layer 33 may be located between the cover plate assembly 6 and the protective film 7.

[0123] Exemplarily, the material of the third adhesive layer 33 in the display module 10 may include an optically clear adhesive (OCA), etc. The optically clear adhesive has characteristics such as colorless transparency and high light transmittance, which is beneficial to ensuring the light transmittance of the display module 10.

[0124] In some embodiments, please continue to refer to Figure 2 , in the display module 10 in the display device 100 includes a display panel 1 and a cover plate assembly 6, the housing 20 in the display device 100 includes a side plate 20a disposed around the display module 10, the inner side wall surface 20aa of the side plate 20a includes a first side wall 201, a second side wall 202 and a bearing surface 203, and along the thickness direction (i.e., the third direction Z) of the display device 100, the first side wall 201 is farther from the back surface 10b of the display module 10 than the second side wall 202, and when the bearing surface 203 is connected between the first side wall 201 and the second side wall 202, the first side wall 201 may surround the cover plate assembly 6 in the display module 10, the second side wall 202 may surround the display panel 1 in the display module 10, and the edge of the cover plate assembly 6 may be supported on the bearing surface 203.

[0125] The display device 100 may further include a fixing layer 30. The fixing layer 30 is located between the bearing surface 203 and the edge of the cover plate assembly 6.

[0126] By making the display device 100 include the fixing layer 30, and the fixing layer 30 is located between the bearing surface 203 and the edge of the cover plate assembly 6, so that the fixing layer 30 is located on the side of the cover plate assembly 6 close to the display panel 1. On the one hand, the cover plate assembly 6 can hide the fixing layer 30 on the side of the cover plate assembly 6 close to the display panel 1, avoiding setting the fixing layer 30 on the front surface 10a of the display module 10, which is beneficial to making the overall appearance of the display device 100 more concise and smooth.

[0127] On the other hand, the cover plate assembly 6 in the display module 10 can be connected to the housing 20 in the display device 100 through the fixing layer 30, which is convenient for fixing the display module 10 in the housing 20 of the display device 100.

[0128] Exemplarily, please continue to refer to Figure 2 , the material of the fixing layer 30 in the display device 100 may include an adhesive material. The elastic modulus of the adhesive material may be greater than or equal to 10 Kpa and less than or equal to 500 Kpa. And / or, the peeling force between the adhesive material and the bearing surface 203 and the surface peeling force between the adhesive material and the cover plate assembly 6 may both be greater than or equal to 1500 gf / inch.

[0129] For example, when the material of the fixing layer 30 in the display device 100 includes an adhesive material, the elastic modulus of the adhesive material can be 10 Kpa, 50 Kpa, 100 Kpa, 150 Kpa, 200 Kpa, 250 Kpa, 300 Kpa, 350 Kpa, 400 Kpa, 450 Kpa, 500 Kpa, etc.

[0130] For another example, please continue to refer to Figure 2 , when the material of the fixing layer 30 in the display device 100 includes an adhesive material, the peel force between the adhesive material and the bearing surface 203 can be 1500 gf / inch, 1550 gf / inch, 1600 gf / inch, 1650 gf / inch, 1700 gf / inch, 1750 gf / inch, 1800 gf / inch, 1850 gf / inch, 1900 gf / inch, etc.

[0131] The peel force between the adhesive material and the surface of the cover plate assembly 6 can be 1500 gf / inch, 1550 gf / inch, 1600 gf / inch, 1650 gf / inch, 1700 gf / inch, 1750 gf / inch, 1800 gf / inch, 1850 gf / inch, 1900 gf / inch, etc.

[0132] For yet another example, when the material of the fixing layer 30 in the display device 100 includes an adhesive material, the elastic modulus of the adhesive material can be 10 Kpa, 50 Kpa, 100 Kpa, 150 Kpa, 200 Kpa, 250 Kpa, 300 Kpa, 350 Kpa, 400 Kpa, 450 Kpa, 500 Kpa, etc.

[0133] Moreover, the peel force between the adhesive material and the bearing surface 203 can be 1500 gf / inch, 1550 gf / inch, 1600 gf / inch, 1650 gf / inch, 1700 gf / inch, 1750 gf / inch, 1800 gf / inch, 1850 gf / inch, 1900 gf / inch, etc.

[0134] The peel force between the adhesive material and the surface of the cover plate assembly 6 can be 1500 gf / inch, 1550 gf / inch, 1600 gf / inch, 1650 gf / inch, 1700 gf / inch, 1750 gf / inch, 1800 gf / inch, 1850 gf / inch, 1900 gf / inch, etc.

[0135] By making the material of the fixing layer 30 in the display device 100 include an adhesive material, and the elastic modulus of the adhesive material is greater than or equal to 10 Kpa and less than or equal to 500 Kpa, and / or, the peeling force between the adhesive material and the bearing surface 203 and the surface peeling force between the adhesive material and the cover plate assembly 6 are both greater than or equal to 1500 gf / inch, it can be ensured that the fixing layer 30 in the display device 100 can provide sufficient bonding strength while allowing a certain amount of deformation and misalignment, which can play a role in protecting the display module 10, reduce the probability of damage to the display module 10, be beneficial to improving the service life of the display module 10, and further be beneficial to improving the service life of the display device 100.

[0136] Especially when the display device 100 is a foldable display device, during the folding or unfolding process of the display device 100, there is likely to be a certain relative misalignment between the display module 10 and the housing 20 in the display device 100. By making the material of the fixing layer 30 in the display device 100 include an adhesive material, and the elastic modulus of the adhesive material is greater than or equal to 10 Kpa and less than or equal to 500 Kpa, and / or, the peeling force between the adhesive material and the bearing surface 203 and the surface peeling force between the adhesive material and the cover plate assembly 6 are both greater than or equal to 1500 gf / inch, it can be ensured that the fixing layer 30 in the display device 100 can provide sufficient bonding strength while allowing a certain amount of deformation and misalignment. During the folding or unfolding process of the display device 100, it can play a role in protecting the display module 10, reduce the probability of damage to the display module 10, be beneficial to improving the service life of the display module 10, and further be beneficial to improving the service life of the display device 100.

[0137] Exemplarily, please continue to refer to Figure 2 , the thickness h30 of the fixing layer 30 in the display device 100 can be greater than or equal to 30 μm and less than or equal to 200 μm.

[0138] For example, the thickness h30 of the fixing layer 30 in the display device 100 can be 30 μm, 40 μm, 50 μm, 60 μm, 70 μm, 80 μm, 90 μm, 100 μm, 110 μm, 120 μm, 130 μm, 140 μm, 150 μm, 160 μm, 170 μm, 180 μm, 190 μm or 200 μm, etc.

[0139] It should be noted that the thickness h30 of the above-mentioned fixing layer 30 refers to the dimension of the fixing layer 30 along the thickness direction (i.e., the third direction Z) of the display device 100. The following descriptions about the thickness h30 of the fixing layer 30 also follow this explanation and will not be elaborated further.

[0140] The following will give a detailed description of the cover plate assembly 6 in the above-mentioned display module 10.

[0141] In some embodiments, such as Figure 6 shown, Figure 6 FIG. Figure 6 is a cross-sectional view of the cover plate assembly 6 and the display panel 1 in the display module 10 according to some embodiments. The cover plate assembly 6 in the display module 10 may include a first cover plate 61. The first cover plate 61 is located on the light-emitting side 1a of the display panel 1.

[0142] Exemplarily, the material of the first cover plate 61 in the cover plate assembly 6 may include Ultra-Thin Glass (UTG).

[0143] By making the material of the first cover plate 61 in the cover plate assembly 6 include ultra-thin glass, on the one hand, the transmittance of the ultra-thin glass is relatively high, which is beneficial to improving the display effect of the display module 10, and thus can bring a better visual experience to the user.

[0144] On the other hand, the ultra-thin glass has high hardness and scratch resistance, can effectively protect the display panel 1 in the display module 10, reduce the probability of damage such as scratches and / or impacts on the display panel 1, is beneficial to improving the reliability of the display panel 1, and thus is beneficial to improving the reliability of the display module 10 and the display device 100.

[0145] Exemplarily, please continue to refer to Figure 6 , the first cover plate 61 in the cover plate assembly 6 may include a cover plate main body 61a and an edge portion 61b. The edge portion 61b of the first cover plate 61 surrounds the cover plate main body 61a and is connected to the cover plate main body 61a.

[0146] Along a preset direction M, the thickness h61b of the edge portion 61b of the first cover plate 61 may gradually decrease. The preset direction M is perpendicular to the thickness direction of the first cover plate 61 (i.e., the third direction Z), and is any direction from the center of the first cover plate 61 to the edge portion 61b.

[0147] It should be noted that the thickness h61b of the edge portion 61b of the first cover plate 61 mentioned above refers to the dimension of the edge portion 61b of the first cover plate 61 along the thickness direction of the first cover plate 61 (i.e., the third direction Z). The following descriptions of the thickness h61b of the edge portion 61b of the first cover plate 61 also follow this explanation and will not be elaborated further.

[0148] Exemplarily, please continue to refer to Figure 6 , in the case where the first cover plate 61 in the cover plate assembly 6 includes a cover plate main body 61a and an edge portion 61b, the cover plate main body 61a of the first cover plate 61 may include a first surface 611 and a second surface 612 that face away from each other in the thickness direction of the first cover plate 61 (i.e., the third direction Z).

[0149] The edge portion 61b of the first cover plate 61 may include a side surface 613. The side surface 613 of the edge portion 61b may include a first sub-side surface 6131, a second sub-side surface 6132, and a third sub-side surface 6133. The first sub-side surface 6131 connects the first surface 611 of the cover plate body 61a and the second sub-side surface 6132, and the included angle α between the first sub-side surface 6131 and the first surface 611 of the cover plate body 61a may be an obtuse angle. The third sub-side surface 6133 connects the second surface 612 of the cover plate body 61a and the second sub-side surface 6132, and the included angle β between the third sub-side surface 6133 and the second surface 612 of the cover plate body 61a may be an obtuse angle.

[0150] Exemplarily, as Figure 7 shown, Figure 7 is a cross-sectional view of a partial area of the first cover plate 61 in the cover plate assembly 6 according to some embodiments. The first cover plate 61 in the cover plate assembly 6 may include a first area 61c and a second area 61d. The thickness h61c of the first area 61c and the thickness h61d of the second area 61d are different.

[0151] It should be noted that the thickness h61c of the above-mentioned first area 61c refers to the dimension of the first area 61c along the thickness direction of the first cover plate 61 (i.e., the third direction Z). The thickness h61d of the above-mentioned second area 61d refers to the dimension of the second area 61d along the thickness direction of the first cover plate 61 (i.e., the third direction Z). The following descriptions of the thickness h61c of the first area 61c and the thickness h61d of the second area 61d also follow this explanation and will not be elaborated further.

[0152] For example, please continue to refer to Figure 7 , the thickness h61c of the first area 61c of the first cover plate 61 may be greater than or equal to 20 μm and less than or equal to 80 μm. Specifically, the thickness h61c of the first area 61c of the first cover plate 61 may be 20 μm, 30 μm, 40 μm, 50 μm, 60 μm, 70 μm, or 80 μm, etc.

[0153] The thickness h61d of the second area 61d of the first cover plate 61 may be greater than or equal to 70 μm and less than or equal to 200 μm. Specifically, the thickness h61d of the second area 61d of the first cover plate 61 may be 70 μm, 80 μm, 90 μm, 100 μm, 110 μm, 120 μm, 130 μm, 140 μm, 150 μm, 160 μm, 170 μm, 180 μm, 190 μm, or 200 μm, etc.

[0154] For another example, the thickness h61c of the first region 61c of the first cover plate 61 may be greater than or equal to 70 μm and less than or equal to 200 μm. Specifically, the thickness h61c of the first region 61c of the first cover plate 61 may be 70 μm, 80 μm, 90 μm, 100 μm, 110 μm, 120 μm, 130 μm, 140 μm, 150 μm, 160 μm, 170 μm, 180 μm, 190 μm, or 200 μm, etc.

[0155] The thickness h61d of the second region 61d of the first cover plate 61 may be greater than or equal to 20 μm and less than or equal to 80 μm. Specifically, the thickness h61d of the second region 61d of the first cover plate 61 may be 20 μm, 30 μm, 40 μm, 50 μm, 60 μm, 70 μm, or 80 μm, etc.

[0156] In some embodiments, please continue to refer to Figure 6 , when the cover plate assembly 6 in the display module 10 includes the first cover plate 61, the cover plate assembly 6 may further include a first adhesive layer 81. The first adhesive layer 81 is located between the display panel 1 and the first cover plate 61.

[0157] In some embodiments, please continue to refer to Figure 6 , the cover plate assembly 6 in the display module 10 may further include a second cover plate 62. The second cover plate 62 is located on the side of the first cover plate 61 away from the display panel 1.

[0158] Exemplarily, please continue to refer to Figure 6 , when the cover plate assembly 6 in the display module 10 includes the first cover plate 61 and the second cover plate 62, along the stacking direction of the first cover plate 61 and the second cover plate 62, the orthographic projection of the first cover plate 61 onto the second cover plate 62 may be within the boundary range of the second cover plate 62.

[0159] Exemplarily, the material of the second cover plate 62 in the cover plate assembly 6 may include one or more (greater than or equal to two) of polyethylene terephthalate (PET), polyimide (PI), triacetate cellulose (TAC), cyclic olefin polymer (COP), etc.

[0160] In some embodiments, please continue to refer to Figure 6 , when the cover plate assembly 6 in the display module 10 includes the first cover plate 61 and the second cover plate 62, the cover plate assembly 6 may further include a second adhesive layer 82. The second adhesive layer 82 is located between the second cover plate 62 and the first cover plate 61.

[0161] In some embodiments, referring still to Figure 6 , in the case where the cover plate assembly 6 in the display module 10 includes a first cover plate 61, a second cover plate 62, a first adhesive layer 81, and a second adhesive layer 82, the cover plate assembly 6 in the display module 10 may further include a filling portion 83. The filling portion 83 covers at least a part of the side surface 613 corresponding to the side edge of the first cover plate 61. One end of the filling portion 83 is connected to the first adhesive layer 81, and the other end is connected to the second adhesive layer 82.

[0162] By providing the filling portion 83 in the display module 10, and the filling portion 83 covering at least a part of the side surface 613 corresponding to the side edge of the first cover plate 61, it is possible to avoid the existence of enclosed air bubbles between the side surface 613 corresponding to the side edge of the first cover plate 61 and the filling portion 83, or to reduce the probability of the existence of enclosed air bubbles between the side surface 613 corresponding to the side edge of the first cover plate 61 and the filling portion 83, which is beneficial to improving the overall sealing performance and stability of the display module 10, and further beneficial to improving the display effect of the display module 10.

[0163] As Figure 8 shown, Figure 8 is a flowchart of a method for manufacturing the display module 10 according to some embodiments. During the process of manufacturing the display module 10, the cover plate assembly 6 is first manufactured separately, and then the cover plate assembly 6 is attached to the light-emitting side 1a of the display panel 1 to form an initial display module 10m. Finally, the edge portion of the initial display module 10m is removed to form the display module 10.

[0164] When removing the edge portion of the initial display module 10m to form the display module 10, the edge portion of the initial display module 10m can be removed using a laser cutting process to form the display module 10. By connecting one end of the filling portion 83 to the first adhesive layer 81 and the other end to the second adhesive layer 82, it is possible to avoid the existence of an air gap between the first adhesive layer 81 and the second adhesive layer 82 in the region where the filling portion 83 is located. Furthermore, when using the laser cutting process to remove the edge portion of the initial display module 10m to form the display module 10, the probability that the laser refracts at the air gap between the first adhesive layer 81 and the second adhesive layer 82 and damages the display panel 1 can be reduced, thereby reducing the probability of defects such as growing dark spots (GDS) on the display panel 1, which is beneficial to improving the display effect of the display panel 1, and further beneficial to further improving the display effect of the display module 10.

[0165] Exemplarily, referring still to Figure 6, when the first cover plate 61 includes a cover plate main body 61a and an edge portion 61b, and the edge portion 61b of the first cover plate 61 includes a side surface 613, the filling portion 83 wraps the edge portion 61b corresponding to at least a part of the side edge of the first cover plate 61.

[0166] Exemplarily, please continue to refer to Figure 6 , when the side surface 613 of the edge portion 61b includes a first sub-side surface 6131, a second sub-side surface 6132, and a third sub-side surface 6133, and the first sub-side surface 6131 connects the first surface 611 of the cover plate main body 61a and the second sub-side surface 6132, and the third sub-side surface 6133 connects the second surface 612 of the cover plate main body 61a and the second sub-side surface 6132, the filling portion 83 can cover the first sub-side surface 6131, the second sub-side surface 6132, and the third sub-side surface 6133 corresponding to at least a part of the side edge of the first cover plate 61.

[0167] Exemplarily, as Figure 9 shown, Figure 9 is a plan view of the first cover plate 61 and the filling portion 83 in the cover plate assembly 6 according to some embodiments. The filling portion 83 can be disposed around the first cover plate 61 to cover the side surface 613 corresponding to all the side edges of the first cover plate 61.

[0168] By disposing the filling portion 83 around the first cover plate 61 and covering the side surface 613 corresponding to all the side edges of the first cover plate 61, on the one hand, it is possible to avoid the existence of closed air bubbles between the side surface 613 corresponding to all the side edges of the first cover plate 61 and the filling portion 83, or to reduce the probability of the existence of closed air bubbles between the side surface 613 corresponding to all the side edges of the first cover plate 61 and the filling portion 83, which is beneficial to further improving the overall sealing performance and stability of the display module 10, and thus is beneficial to further improving the display effect of the display module 10.

[0169] On the other hand, it is possible to avoid the existence of an air gap between the first adhesive layer 81 and the second adhesive layer 82 in the area where the filling portion 83 is located. Furthermore, when using the laser cutting process to remove the edge portion of the initial display module 10m to form the display module 10, it is possible to avoid the laser refracting at the air gap between the first adhesive layer 81 and the second adhesive layer 82 and damaging the display panel 1. Therefore, it is possible to further reduce the probability of defects such as growing dark spots (GDS) on the display panel 1, which is beneficial to further improving the display effect of the display panel 1, and thus is beneficial to further improving the display effect of the display module 10.

[0170] Exemplarily, as Figure 10 and Figure 11 shown, Figure 10 andFigure 11 These are all plan views of the first cover plate 61 and the filling part 83 in the cover plate assembly 6 according to some embodiments. When the display module 10 includes a bending area 101 and a non-bending area 102, the filling part 83 at least covers the side surface 613 corresponding to the side of the bending area 101.

[0171] For example, please continue to refer to Figure 10 , the filling part 83 can cover the side surface 613 corresponding to the side of the bending area 101.

[0172] By making the filling part 83 cover the side surface 613 corresponding to the side of the bending area 101, it is possible to avoid the existence of closed air bubbles between the side surface 613 corresponding to the side of a part of the first cover plate 61 located in the bending area 101 and the filling part 83, or to reduce the probability of the existence of closed air bubbles between the side surface 613 corresponding to the side of a part of the first cover plate 61 located in the bending area 101 and the filling part 83. Furthermore, during the folding process of the display module 10, the probability of the closed air bubbles moving to the area in the cover plate assembly 6 opposite to the display area AA of the display panel 1 can be reduced, thereby improving the display effect of the display module 10 and providing a better visual experience for users.

[0173] Another example, please continue to refer to Figure 11 , the filling part 83 can cover the side surface 613 corresponding to the side of the bending area 101, and the side surface 613 corresponding to the side of the non-bending area 102.

[0174] By making the filling part 83 cover both the side surface 613 corresponding to the side of the bending area 101 and the side surface 613 corresponding to the side of the non-bending area 102, on the one hand, it is possible to avoid the existence of closed air bubbles between the side surface 613 corresponding to the side of a part of the first cover plate 61 located in the bending area 101 and the filling part 83, or to reduce the probability of the existence of closed air bubbles between the side surface 613 corresponding to the side of a part of the first cover plate 61 located in the bending area 101 and the filling part 83. Furthermore, during the folding process of the display module 10, the probability of the closed air bubbles moving to the area in the cover plate assembly 6 opposite to the display area AA of the display panel 1 can be reduced, thereby improving the display effect of the display module 10 and providing a better visual experience for users.

[0175] On the other hand, an air gap between the first adhesive layer 81 and the second adhesive layer 82 in the area where the filling part 83 is located can be avoided. Furthermore, when using the laser cutting process to remove the edge part of the initial display module 10m to form the display module 10, it is possible to prevent the laser from refracting at the air gap between the first adhesive layer 81 and the second adhesive layer 82 and damaging the display panel 1. Thus, the probability of defects such as Growing Dark Spots (GDS) occurring in the display panel 1 can be further reduced, which is beneficial to further improving the display effect of the display panel 1, and further beneficial to further enhancing the display effect of the display module 10.

[0176] Exemplarily, the fluidity of the material of the filling part 83 can be greater than the fluidity of the material of the second adhesive layer 82.

[0177] By making the fluidity of the material of the filling part 83 greater than the fluidity of the material of the second adhesive layer 82, when forming the filling part 83, it is convenient for the material used to form the filling part 83 to better cover the side surface 613 corresponding to at least part of the side edge of the first cover plate 61, so that the filling part 83 fits with the side surface 613 corresponding to at least part of the side edge of the first cover plate 61, which is beneficial to eliminating the enclosed air bubbles between the side surface 613 corresponding to the side edge of the first cover plate 61 and the filling part 83, and further beneficial to improving the overall sealing performance and stability of the display module 10.

[0178] Exemplarily, the material of the filling part 83 can include at least one of photosensitive glue (Bank glue) and optical clear resin (OCR), etc.

[0179] For example, the material of the filling part 83 can include one of photosensitive glue and optical clear resin, etc.

[0180] For another example, the material of the filling part 83 can include multiple (greater than or equal to two) of photosensitive glue and optical clear resin, etc.

[0181] When the material of the filling part 83 includes photosensitive glue, the material of the filling part 83 can specifically include at least one of thermoplastic polyurethanes (TPU) and polyimide (PI), etc.

[0182] Exemplarily, polyborosiloxane can be doped in the material of the filling part 83.

[0183] For example, the material of the filling part 83 can include photosensitive glue doped with polyborosiloxane.

[0184] For another example, the material of the filling portion 83 may include an optically transparent resin doped with polyborosiloxane.

[0185] For yet another example, the material of the filling portion 83 may include a photosensitive adhesive doped with polyborosiloxane, and an optically transparent resin doped with polyborosiloxane.

[0186] By doping the material of the filling portion 83 with polyborosiloxane, the filling portion 83 can be made to have the ability of shear thickening. As a result, when an external force acts on the filling portion 83, its viscosity will increase significantly with the increase of the shear rate, that is, it exhibits the shear thickening effect, so that the non-Newtonian fluid performance can be achieved, which is beneficial to improving the impact resistance of the filling portion 83, and further beneficial to enhancing the stability and reliability of the display module 10.

[0187] Exemplarily, when the material of the filling portion 83 includes a photosensitive adhesive, the elastic modulus of the filling portion 83 may be greater than or equal to 500 Kpa and less than or equal to 100 Mpa.

[0188] When the material of the filling portion 83 includes an optically transparent resin, the elastic modulus of the filling portion 83 may be greater than or equal to 10 Kpa and less than or equal to 1 Mpa.

[0189] In some embodiments, please continue to refer to Figure 6 , and in combination with Figure 12 , Figure 12 is a cross-sectional view of the cover plate assembly 6 and the display panel 1 in the display module 10 according to some embodiments. The material of the filling portion 83 and the material of the first adhesive layer 81 may be the same, and the filling portion 83 and the first adhesive layer 81 are of an integral structure.

[0190] Exemplarily, when the material of the filling portion 83 and the material of the first adhesive layer 81 are the same, the material of the first adhesive layer 81 may include one or more (greater than or equal to two) of a photosensitive adhesive and an optically transparent resin, etc.

[0191] In some other embodiments, as Figure 13 , Figure 14 , Figure 15 and Figure 16 shown, Figure 13 , Figure 14 , Figure 15 and Figure 16 are all cross-sectional views of the cover plate assembly 6 and the display panel 1 in the display module 10 according to some embodiments. The material of the first adhesive layer 81 and the material of the filling portion 83 may be different.

[0192] Exemplarily, please continue to refer to Figure 13 and Figure 14, the fluidity of the material of the first adhesive layer 81 may be greater than that of the material of the second adhesive layer 82. The filling portion 83 is disposed around the first cover plate 61, and a surface 83a of the filling portion 83 facing away from the second cover plate 62 may be higher than a surface 61m of the first cover plate 61 facing away from the second cover plate 62, so that the filling portion 83 and the first cover plate 61 form a groove with the notch facing away from the second cover plate 62, and the first adhesive layer 81 is filled in the groove.

[0193] For example, when the materials of the filling portion 83 and the first adhesive layer 81 are different, and the fluidity of the material of the first adhesive layer 81 is greater than that of the material of the second adhesive layer 82, the material of the filling portion 83 may include one or more (greater than or equal to two) of photosensitive glue, optical transparent resin, etc., and the material of the first adhesive layer 81 may include one or more (greater than or equal to two) of photosensitive glue, optical transparent resin, etc., and the material of the second adhesive layer 82 may include optical glue, etc.

[0194] Specifically, the material of the filling portion 83 may include photosensitive glue, the material of the first adhesive layer 81 may include optical transparent resin, and the material of the second adhesive layer 82 may include optical glue.

[0195] Alternatively, the material of the filling portion 83 may include optical transparent resin, the material of the first adhesive layer 81 may include photosensitive glue, and the material of the second adhesive layer 82 may include optical glue.

[0196] Exemplarily, please continue to refer to Figure 15 and Figure 16 , the fluidity of the material of the first adhesive layer 81 may be less than that of the material of the filling portion 83. A surface 83a of the filling portion 83 facing away from the second cover plate 62 is flush or substantially flush with a surface 61m of the first cover plate 61 facing away from the second cover plate 62, and the first adhesive layer 81 also covers the surface 83a of the filling portion 83 facing away from the second cover plate 62.

[0197] For example, when the materials of the filling portion 83 and the first adhesive layer 81 are different, and the fluidity of the material of the first adhesive layer 81 is less than that of the material of the filling portion 83, the material of the filling portion 83 may include one or more (greater than or equal to two) of photosensitive glue, optical transparent resin, etc., the material of the first adhesive layer 81 may include optical glue, etc., and the material of the second adhesive layer 82 may include optical glue, etc.

[0198] It should be noted that the fact that the surface 83a on the side of the filling portion 83 facing away from the second cover plate 62 is flush with the surface 61m on the side of the first cover plate 61 facing away from the second cover plate 62 means that the surface 83a on the side of the filling portion 83 facing away from the second cover plate 62 and the surface 61m on the side of the first cover plate 61 facing away from the second cover plate 62 are in the same plane. The fact that the surface 83a on the side of the filling portion 83 facing away from the second cover plate 62 is substantially flush with the surface 61m on the side of the first cover plate 61 facing away from the second cover plate 62 means that there is a small gap between the surface 83a on the side of the filling portion 83 facing away from the second cover plate 62 and the surface 61m on the side of the first cover plate 61 facing away from the second cover plate 62, and the gap between the surface 83a on the side of the filling portion 83 facing away from the second cover plate 62 and the surface 61m on the side of the first cover plate 61 facing away from the second cover plate 62 may be caused by manufacturing tolerances, assembly errors or other actual factors.

[0199] In some embodiments, please continue to refer to Figure 12 、 Figure 14 and Figure 16 , the orthographic projection of the first cover plate 61 onto the second cover plate 62 may be within the orthographic projection range of the second adhesive layer 82 onto the second cover plate 62, and the second adhesive layer 82 also covers the surface 83b of the filling portion 83 facing the second cover plate 62.

[0200] Or, please continue to refer to Figure 6 、 Figure 13 and Figure 15 , the orthographic projection of the second adhesive layer 82 onto the second cover plate 62 may be within the orthographic projection range of the first cover plate 61 onto the second cover plate 62, and the filling portion 83 also covers the side surface 82a of the second adhesive layer 82.

[0201] Or again, please continue to refer to Figure 6 、 Figure 13 and Figure 15 , the orthographic projection of the second adhesive layer 82 onto the second cover plate 62 may coincide with the orthographic projection of the first cover plate 61 onto the second cover plate 62, and the filling portion 83 also covers the side surface 82a of the second adhesive layer 82.

[0202] In some embodiments, as shown in Figure 17 、 Figure 18 、 Figure 19 and Figure 20 , Figure 17 、 Figure 18 、 Figure 19 and Figure 20 are all cross-sectional views of the cover plate assembly 6 and the display panel 1 in the display module 10 according to some embodiments. The cover plate assembly 6 in the display module 10 may further include a third adhesive layer 84. The third adhesive layer 84 is located between the first adhesive layer 81 and the display panel 1.

[0203] By making the cover plate assembly 6 in the display module 10 include a third adhesive layer 84, and the third adhesive layer 84 is located between the first adhesive layer 81 and the display panel 1, it is beneficial to improve the bonding strength between the first cover plate 61 and the display panel 1, and thus beneficial to improve the stability and reliability of the display module 10.

[0204] Exemplarily, please continue to refer to Figure 17 and Figure 18 , the fluidity of the material of the third adhesive layer 84 can be less than the fluidity of the material of the filling portion 83.

[0205] For example, the material of the third adhesive layer 84 can include optical glue, etc.

[0206] Exemplarily, please continue to refer to Figure 19 and Figure 20 , the fluidity of the material of the third adhesive layer 84 can be greater than the fluidity of the material of the second adhesive layer 82.

[0207] For example, the material of the third adhesive layer 84 can include at least one of optical transparent resin, thermoplastic polyurethane elastomer rubber, polyimide, etc.

[0208] In some embodiments, as Figure 21 shown, Figure 21 is a cross-sectional view of the cover plate assembly 6 and the display panel 1 in the display module 10 according to some embodiments. The cover plate assembly 6 in the display module 10 may further include a third cover plate 63. The third cover plate 63 is located on the side of the first cover plate 61 close to the display panel 1.

[0209] Exemplarily, the material of the third cover plate 63 in the cover plate assembly 6 can include one or more (greater than or equal to two) of polyethylene terephthalate (PET), polyimide (PI), triacetate cellulose (TAC), cyclic olefin polymer (COP), etc.

[0210] In some embodiments, please continue to refer to Figure 21 , in the case where the cover plate assembly 6 in the display module 10 includes a third cover plate 63, the cover plate assembly 6 may further include a fourth adhesive layer 85. The fourth adhesive layer 85 is located between the third cover plate 63 and the display panel 1.

[0211] Exemplarily, the material of the fourth adhesive layer 85 can include optical glue, etc.

[0212] As described above, it is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure who thinks of changes or substitutions should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims described above.

Claims

1. A display module, characterized in that: include: Display panel; A first cover plate, located at the light-emitting side of the display panel; A first adhesive layer, located between the display panel and the first cover plate; A second cover plate is located on a side of the first cover plate away from the display panel; along the stacking direction of the first cover plate and the second cover plate, the orthographic projection of the first cover plate onto the second cover plate is located within the boundary range of the second cover plate; a second adhesive layer, located between the second cover plate and the first cover plate; The filling portion covers the side surface corresponding to at least a portion of the side edge of the first cover plate; one end of the filling portion is connected to the first adhesive layer, and the other end is connected to the second adhesive layer.

2. The display module according to claim 1, characterized in that: The first cover plate includes a cover plate body and an edge portion, wherein the edge portion surrounds the cover plate body and is connected to the cover plate body; The thickness of the edge portion gradually decreases along a preset direction; the preset direction is perpendicular to the thickness direction of the first cover plate and is in any direction from the center of the first cover plate to the edge portion; The edge portion includes the side surface, and the filling portion wraps the edge portion corresponding to at least a portion of the side edge of the first cover plate.

3. The display module according to claim 2, characterized in that: The cover plate body comprises a first surface and a second surface opposite to each other in a thickness direction of the first cover plate, and the side surface of the edge portion comprises a first sub-side surface, a second sub-side surface and a third sub-side surface; The first sub-side surface connects the first surface and the second sub-side surface, and an angle between the first sub-side surface and the first surface is an obtuse angle; The third sub-side surface connects the second surface and the second sub-side surface, and an included angle between the third sub-side surface and the second surface is an obtuse angle; The filling portion covers the first sub-side surface, the second sub-side surface, and the third sub-side surface corresponding to at least a portion of the side edges of the first cover plate.

4. The display module according to claim 1, characterized in that: The filling portion is disposed around the first cover plate, covering side surfaces corresponding to all side edges of the first cover plate.

5. The display module according to claim 1, characterized in that: The display module comprises a bending area and a non-bending area, and the bending area and the non-bending area are arranged adjacent to each other; The filling portion at least covers the side surfaces corresponding to the side edges of the bending area.

6. The display module according to claim 5, characterized in that: The filling portion also covers the side surfaces corresponding to the side edges of the non-bending area.

7. The display module according to claim 1, characterized in that: The material of the filling part includes at least one of a photosensitive adhesive and an optically transparent resin.

8. The display module according to claim 7, characterized in that: The material of the filling part is doped with polyborosiloxane.

9. The display module according to claim 1, characterized in that: The fluidity of the material of the filling portion is greater than the fluidity of the material of the second adhesive layer.

10. The display module according to any one of claims 1 to 9, characterized in that: The material of the filling portion is the same as that of the first adhesive layer, and the filling portion and the first adhesive layer are an integral structure.

11. The display module according to any one of claims 1 to 9, characterized in that: The material of the first adhesive layer is different from the material of the filling portion, and the fluidity of the material of the first adhesive layer is greater than the fluidity of the material of the second adhesive layer; The filling portion is arranged around the first cover plate; a surface of the filling portion on one side facing away from the second cover plate is higher than a surface of the first cover plate on one side facing away from the second cover plate, so that the filling portion and the first cover plate form a groove with a notch facing away from the second cover plate, and the first adhesive layer is filled in the groove.

12. The display module according to claim 10 or 11, characterized in that: The display module further includes a third adhesive layer located between the first adhesive layer and the display panel; The fluidity of the material of the third adhesive layer is lower than the fluidity of the material of the filling portion; Alternatively, the fluidity of the material of the third adhesive layer is greater than the fluidity of the material of the second adhesive layer.

13. The display module according to any one of claims 1 to 9, characterized in that: The fluidity of the material of the first adhesive layer is lower than the fluidity of the material of the filling portion; A surface of the filling portion facing away from the second cover plate is flush or substantially flush with a surface of the first cover plate facing away from the second cover plate, and the first adhesive layer also covers a surface of the filling portion facing away from the second cover plate.

14. The display module according to any one of claims 1 to 9, characterized in that: The orthographic projection of the first cover plate onto the second cover plate is located within the orthographic projection range of the second adhesive layer onto the second cover plate, and the second adhesive layer also covers a surface of one side of the filling portion facing the second cover plate; or, The orthographic projection of the second adhesive layer onto the second cover plate is within the orthographic projection range of the first cover plate onto the second cover plate, or the orthographic projection of the second adhesive layer onto the second cover plate coincides with the orthographic projection of the first cover plate onto the second cover plate, and the filling portion also covers the side surface of the second adhesive layer.

15. The display module according to any one of claims 1 to 9, characterized in that: The material of the first cover plate includes ultra-thin glass.

16. The display module according to claim 15, characterized in that: The first cover plate includes a first area and a second area, and the first area and the second area have different thicknesses.

17. A display device, characterized in that: include: shell; The display module according to any one of claims 1 to 16, embedded in the housing.

18. The display device according to claim 17, characterized in that The display module includes a cover plate assembly, and the cover plate assembly includes a first cover plate and a second cover plate; The housing comprises a side plate arranged around the display module, the inner side wall surface of the side plate comprises a first side wall, a second side wall and a bearing surface, along the thickness direction of the display device, the first side wall is farther away from the back side of the display module than the second side wall, and the bearing surface is connected between the first side wall and the second side wall; The first side wall surrounds the cover plate assembly, the second side wall surrounds the display panel in the display module, and the edge of the cover plate assembly is supported on the bearing surface; The display device further comprises a fixing layer located between the bearing surface and an edge of the cover assembly; The material of the fixing layer includes a glue material, and the elastic modulus of the glue material is greater than or equal to 10Kpa and less than or equal to 500Kpa; and / or, The peeling force between the adhesive and the bearing surface and the peeling force between the adhesive and the surface of the cover plate assembly are both greater than or equal to 1500 gf / inch.

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