Display module and display device

Abstract

The application provides a display module and a display device. The display module comprises a bending area and a non-bending area located on at least one side of the bending area; the display module comprises a display panel, a first cover plate layer and an auxiliary structure. The display panel is located in the bending area and the non-bending area; the first cover plate layer is located on the light-emitting side of the display panel; the first cover plate layer comprises a main body layer and a filling material, the main body layer is provided with a groove located in the bending area, and the filling material is filled in the groove; the auxiliary structure is located in at least the bending area, and the auxiliary structure comprises an anti-reflection structure and / or a diffuse reflection structure; the anti-reflection structure is located on the side of the first cover plate layer away from the display panel, and the diffuse reflection structure is located on the side of the first cover plate layer away from the display panel or in the groove. The optical appearance of water ripples generated by the display device under the irradiation of external natural light can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a display module and a display device. BACKGROUND

[0002] The folding screen display device can be rolled up or folded, thus bringing great convenience to consumers in carrying and using. In order to facilitate folding, the glass cover plate of the display device is provided with a groove in the folding area, and an organic material is filled in the groove. However, due to the fact that the refractive index of the organic material arranged in the slotted glass cover plate cannot be consistent with the refractive index of the glass, the folding area of the display device will produce a water wave optical appearance defect under the irradiation of external natural light. SUMMARY

[0003] The present application proposes a display module and a display device to solve the problem of water wave optical appearance defect of the display device under the irradiation of external natural light in the related art.

[0004] The display module provided by the present application includes a bending area and a non-bending area on at least one side of the bending area. The display module includes a display panel, a first cover plate layer, and an auxiliary structure. The display panel is located in the bending area and the non-bending area. The first cover plate layer is located on the light-emitting side of the display panel. The first cover plate layer includes a main body layer and a filling material. The main body layer is provided with a groove in the bending area, and the filling material is filled in the groove. The auxiliary structure is located at least in the bending area. The auxiliary structure includes an anti-reflection structure and / or a diffuse reflection structure. The anti-reflection structure is located on the side of the first cover plate layer away from the display panel. The diffuse reflection structure is located on the side of the first cover plate layer away from the display panel or in the groove.

[0005] In some embodiments, when the auxiliary structure includes an anti-reflection structure, the anti-reflection structure includes a polarizing layer located in the bending area and the non-bending area.

[0006] In some embodiments, when the auxiliary structure includes an anti-reflection structure, the anti-reflection structure includes a polarizing layer located in the bending area and an organic layer located in the bending area and the non-bending area. The organic layer is located on the side of the polarizing layer away from the display panel. The light transmittance of the organic layer is greater than that of the polarizing layer.

[0007] In some embodiments, the thickness of the part of the organic layer located in the bending area in the direction in which the display panel points to the first cover plate layer is less than the thickness of the part of the organic layer located in the non-bending area in the direction.

[0008] In some embodiments, the organic layer is provided with a recess at the bending area towards the surface of the display panel, and the polarizing layer is located in the recess.

[0009] In some embodiments, the auxiliary structure comprises a diffuse reflection structure, and when the diffuse reflection structure is located on the side of the first cover layer away from the display panel, the diffuse reflection structure is provided with a matte layer away from the surface of the display panel.

[0010] In some embodiments, the auxiliary structure comprises a diffuse reflection structure, and when the diffuse reflection structure is located on the side of the first cover layer away from the display panel, the diffuse reflection structure is provided with a matte layer away from the surface of the display panel.

[0011] In some embodiments, the display module further comprises a second cover layer;

[0012] The second cover layer is located on the side of the auxiliary structure away from the first cover layer, and the second cover layer comprises an anti-reflection film.

[0013] In some embodiments, the display module further comprises a support plate located on the side of the display panel away from the first cover layer, and the display module further comprises a flexible reinforcing member, the reinforcing member is arranged on at least one side of the display panel, and the reinforcing member is located in the bending area and the non-bending area, the side of the display panel and the first cover layer opposite to the reinforcing member is in contact with the reinforcing member, and the support plate is located in the non-bending area and the side opposite to the reinforcing member is in contact with the reinforcing member; the reinforcing member has an opening, at least part of the opening is located in the bending area, the opening direction of the opening is the direction in which the display panel points to the support plate, and at least part of the opening exposes the side of the support plate located in the bending area.

[0014] In some embodiments, the display module further comprises a first adhesive layer located on the side of the display panel close to the first cover layer, the edges of the first adhesive layer are respectively recessed from the edges of the display panel and the edges of the first cover layer to form first recesses, and the reinforcing member has a first protruding portion which is filled in the first recesses.

[0015] In some embodiments, the display module further comprises a second adhesive layer located on the side of the first cover layer away from the display panel, the edges of the second adhesive layer are recessed from the edges of the first cover layer to form second recesses, and the reinforcing member has a second protruding portion which is filled in the second recesses.

[0016] In some embodiments, the support plate is provided with a plurality of concave depressions formed on the side surface of the support plate, which is directed to the first cover plate layer, and the concave depressions are arranged at intervals.

[0017] In some embodiments, the elastic modulus of the material of the portion of the reinforcing member located in the non-bending region is greater than the elastic modulus of the material of the portion of the reinforcing member located in the bending region.

[0018] The present application also provides a display device comprising the display module as described above.

[0019] The beneficial effects of the present application include:

[0020] In the folding display device, the anti-reflection structure can reduce the amount of ambient light incident into the display module being reflected and then emitted, and the diffuse reflection structure can make the light distribution of the reflected ambient light more uniform, so as to weaken or eliminate the optical appearance of water ripples in the folding region due to the difference in refractive index between the filler material and the main body layer under natural light irradiation.

[0021] Additional aspects and advantages of the present application will be partially given in the following description, which will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and serve to explain the principles of the present application, together with the description.

[0023] Figure 1 A cross-sectional structure of a display module in the related art is shown;

[0024] Figure 2 A glass and Figure 1 A contrast diagram of the refractive index of the organic material filled in the concave groove 2a is shown;

[0025] Figure 3 A cross-sectional structure of a display module in the related art is shown; Figure 1 A schematic diagram of the water ripple phenomenon of the display module shown in the top view is shown;

[0026] Figure 4 A cross-sectional structure of a display module provided by an exemplary embodiment of the present application is shown;

[0027] Figure 5 A cross-sectional structure of a display module provided by an exemplary embodiment of the present application is shown;

[0028] Figure 6 A cross-sectional structure of a display module provided by an exemplary embodiment of the present application is shown;

[0029] Figure 7 The image shown is a cross-sectional view of a display module provided in an exemplary embodiment of this application;

[0030] Figure 8 The image shown is a cross-sectional view of a display module provided in an exemplary embodiment of this application;

[0031] Figure 9 The image shown is a top view of a display module provided in an exemplary embodiment of this application;

[0032] Figure 10 As shown Figure 9 The side view of the display module shown along the AA direction;

[0033] Figure 11 As shown Figure 9 The diagram shows a cross-sectional view of the display module along the BB section line.

[0034] In the diagram: 1-Display panel; 2-First cover plate layer; 2a-Groove; 21-Main body layer; 22-Filling material; 3-Antireflection structure / diffuse reflection structure; 31-Polarizing layer; 32-Organic layer; 32a-Recess; 33-Scattering particles; 34-Matte layer; 4-Second cover plate layer; 5-First adhesive layer; 6-Second adhesive layer; 61-First sub-adhesive layer; 62-Second sub-adhesive layer; 7-Reinforcing member; 7a-Opening; 71-First protrusion; 72-Second protrusion; 8-Support plate; 8a-Recess; 9-Back film; BA-Bending area; FA-Non-bending area. Detailed Implementation

[0035] like Figure 1 As shown, foldable display devices, such as foldable phones, are constrained by their bending shape requirements, and therefore typically employ a slotted glass cover design. The main layer 21 of the glass cover forms a groove 2a in the bending area BA of the display device, and a filling material 22 (e.g., an organic material) is placed within the groove 2a to allow the display device to fold. However, considering the difference in refractive index between the filling material 22 and the main layer 21 of the cover (e.g., glass) due to the different materials (e.g.,...),... Figure 2 As shown), therefore as Figure 3 As shown, under natural light, the bending area will produce a water ripple effect, resulting in poor optical appearance.

[0036] The display module and display device provided in this application are intended to solve the above-mentioned technical problems in related technologies.

[0037] The display module and display device in the embodiments of this application will now be described in detail with reference to the accompanying drawings. Unless otherwise specified, the features in the following embodiments may complement or combine with each other.

[0038] This application provides a display module, such as... Figure 4 to Figure 8 As shown, the display module includes a bending area BA and a non-bending area FA located on at least one side of the bending area BA; the display module includes a display panel 1, a first cover layer 2, and an auxiliary structure. The display panel 1 is located in both the bending area BA and the non-bending area FA; the first cover layer 2 is located on the light-emitting side of the display panel 1; the first cover layer 2 includes a main body layer 21 and a filling material 22, the main body layer 21 having a groove 2a located in the bending area BA, and the filling material 22 filling the groove 2a; the auxiliary structure is located at least in the bending area BA, and the auxiliary structure includes an anti-reflection structure 3 and / or a diffuse reflection structure 3; the anti-reflection structure 3 is located on the side of the first cover layer 2 away from the display panel 1, and the diffuse reflection structure 3 is located on the side of the first cover layer 2 away from the display panel 1 or within the groove 2a.

[0039] In this embodiment, an anti-reflection structure 3 and / or a diffuse reflection structure 3 are provided in the foldable display device. The anti-reflection structure 3 can reduce the amount of ambient light incident on the display module that is reflected and then emitted. The diffuse reflection structure 3 can make the distribution of reflected ambient light more uniform, thereby reducing or eliminating the optical appearance defects of water ripples caused by the different refractive indices of the filling material 22 and the main body layer 21 in the folded area under natural light.

[0040] In one embodiment, such as Figure 4 to Figure 8 As shown, the non-bending region FA is located on opposite sides of the bending region BA.

[0041] In some embodiments, the thickness of the main body layer 21 of the first cover plate layer 2 in the non-bending region FA is 100–350 μm, and the thickness of the main body layer 21 of the first cover plate layer 2 in the bending region BA is 30–70 μm. In some embodiments, the thickness of the first cover plate layer 2 in the non-bending region FA can be 100 μm, 150 μm, 200 μm, 250 μm, 300 μm, or 350 μm. In some embodiments, the thickness of the main body layer 21 of the first cover plate layer 2 in the bending region BA can be 30 μm, 40 μm, 50 μm, 60 μm, or 70 μm.

[0042] In some embodiments, the main body layer 21 may be made of glass, and the filler material 22 may be made of flexible organic materials, such as polyurethane (PU), polyimide (PI), polyethylene terephthalate (PET), polyethylene (PE), or polypropylene (PP).

[0043] In some embodiments, the elastic modulus of the main body layer 21 is greater than the elastic modulus of the filler material 22.

[0044] In some embodiments, the elastic modulus of the main body layer 21 is 60-90 GPa, and the elastic modulus of the filler material 22 is 0.05-10 GPa.

[0045] In some embodiments, the display panel 1 includes a driving circuit layer, a light-emitting functional layer, and an encapsulation layer (not shown) stacked sequentially, wherein the encapsulation layer is closer to the first cover plate layer 2 than the driving circuit layer.

[0046] In some embodiments, such as Figure 4 As shown, when the auxiliary structure includes the anti-reflection structure 3, the anti-reflection structure 3 includes a polarizing layer 31 located in the bending region BA and the non-bending region FA. The polarizing layer 31 can reduce reflection to eliminate the water ripple effect. In some embodiments, the polarizing layer 31 is a polarizer. When natural light passes through the polarizer, only those rays whose vibration direction is parallel to the transmission axis of the polarizer can pass through, while light in other directions is absorbed; thus, reflection can be reduced and the water ripple effect can be eliminated. By setting the polarizing layer 31 in the bending region BA and the non-bending region FA, it helps to improve the dark-state integrated black effect of the display module in the non-display state.

[0047] In some embodiments, the polarizing layer 31 includes a circular polarizer. Further, the polarizer includes a linear polarizing film and a quarter-wavelength phase compensation film.

[0048] In some embodiments, such as Figure 5 As shown, when the auxiliary structure includes the anti-reflection structure 3, the anti-reflection structure 3 includes a polarizing layer 31 located in the bending region BA and an organic layer 32 located in the bending region BA and the non-bending region FA. The organic layer 32 is located on the side of the polarizing layer 31 away from the display panel 1, and the light transmittance of the organic layer 32 is greater than that of the polarizing layer 31.

[0049] In this embodiment, setting a polarizing layer 31 in the bending area BA can compensate for the defect of poor optical appearance caused by the incompatibility of refractive indices between the filler material 22 and the main body layer 21. However, if the polarizing layer 31 is only set in the bending area BA, it may cause obvious appearance defects between the bending area BA and the non-bending area FA. For example, the dark state effect of the bending area BA and the non-bending area FA is inconsistent when the display module is not in display mode. Therefore, setting an organic layer 32 covering the bending area BA and the non-bending area FA on the side of the polarizing layer 31 away from the display panel 1 can uniformly reduce the appearance color difference and ensure the consistency of the dark state effect of the bending area BA and the non-bending area FA of the display panel 1 in the non-display mode. By setting the light transmittance of the organic layer 32 to be greater than that of the polarizing layer 31, it helps to improve the light output rate of the light emitted by the display panel in the display module and reduce light loss.

[0050] In some embodiments, the organic layer 32 is a specific transmission spectrum layer, configured to transmit a specific emission band while the remaining bands are absorbed. In one example, the organic layer 32 employs the doping of specific chemical materials into an organic material to achieve the function of allowing specific light to pass through.

[0051] In some embodiments, the film layer where the organic layer 32 is located and the film layer where the polarizing layer 31 is located are independently arranged, the thickness of the organic layer 32 in the bending area BA and the non-bending area FA remains consistent, the organic layer 32 can be directly laid on the display panel 1, and the preparation process is relatively simple.

[0052] In some embodiments, considering that the polarizing layer 31 is only arranged in the bending area BA, when the organic layer 32 is arranged in the bending area BA and the non-bending area FA, the polarizing layer 31 located in the bending area BA causes optical inconsistency between the bending area BA and the non-bending area FA, therefore, in the present embodiment, the thickness of the part of the organic layer 32 located in the bending area BA in the direction where the display panel 1 points to the first cover plate layer 2 is less than the thickness of the part of the organic layer 32 located in the non-bending area FA in the direction. Since the thickness of the part of the organic layer 32 located in the bending area BA is less than the thickness of the part of the organic layer 32 located in the non-bending area FA, the difference between the total transmittance of the part of the organic layer 32 located in the bending area and the polarizing layer 31 and the transmittance of the part of the organic layer 32 located in the non-bending area FA can be reduced, which helps to improve the consistency of the dark state effect of the bending area BA and the non-bending area FA.

[0053] In some embodiments, the organic layer 32 is provided with a recessed part 32a located in the bending area BA towards the surface of the display panel 1, and the polarizing layer 31 is located in the recessed part 32a. In the present embodiment, since the polarizing layer 31 is located in the recessed part 32a of the organic layer 32, the polarizing layer 31 will not increase the overall thickness of the display module, and the thinness of the display panel 1 can be improved.

[0054] In some embodiments, as shown in Figure 6 When the auxiliary structure includes the diffuse reflection structure 3 and the diffuse reflection structure 3 is located in the groove 2a, the diffuse reflection structure 3 includes scattering particles 33 doped in the filling material 22, and the refractive index of the scattering particles 33 is different from the refractive index of the filling material 22.

[0055] In the present embodiment, the scattering particles 33 can adjust the exit angle of the external environment light incident into the display module, and can avoid the appearance of water ripples caused by concentrated reflection of light. In one example, the material of the scattering particles 33 is titanium dioxide, zinc oxide, silicon dioxide, plastic or metal.

[0056] In some embodiments, as shown in Figure 7 When the diffuse reflection structure 3 is arranged in the groove 2a, the diffuse reflection structure 3 includes the scattering particles 33 doped in the filling material 22, and the organic layer 32 can be arranged on the side of the first cover plate layer 2 away from the display panel 1. The organic layer 32 can further improve the appearance optical consistency of the display panel 1.

[0057] In some embodiments, as shown in Figure 8As shown, the auxiliary structure includes a diffuse reflection structure 3, and the diffuse reflection structure 3 is located on the side of the first cover plate layer 2 away from the display panel 1. The surface of the diffuse reflection structure 3 away from the display panel 1 is provided with a matte layer 34.

[0058] In this embodiment, by providing the matte layer 34 on the surface of the diffuse reflection structure 3 away from the display panel 1, the normal directions of each point are different due to the rough matte structure. The reflected light formed by the parallel incident light after being reflected by the matte surface will spread in multiple directions. Due to the random direction of the reflected light, the light is uniformly reflected back when observed from each angle, and the appearance of the water wave phenomenon is further eliminated.

[0059] In some embodiments, the haze of the matte layer 34 is 0.7-8. In some embodiments, the haze of the matte layer 34 can be 0.7, 1, 2, 3, 4, 5, 6, 7, or 8.

[0060] In some embodiments, as shown, Figure 4 to Figure 8 As shown, the display module further includes a second cover plate layer 4. The second cover plate layer 4 is located on the side of the auxiliary structure away from the first cover plate layer 2, and the second cover plate layer 4 includes an anti-reflection film (not shown in the figure).

[0061] In this embodiment, the second cover plate layer 4 is added to improve the anti-reflection effect of the display module as a whole. In one example, the anti-reflection film can be an AG (anti-glare) film, which can enhance the diffuse reflection effect.

[0062] In some embodiments, as shown, Figure 9 to Figure 11 As shown, the display module further includes a support plate 8 located on the side of the display panel 1 away from the first cover plate layer 2. The display module further includes a flexible reinforcing member 7. The reinforcing member 7 is arranged on at least one side of the display panel 1, and the reinforcing member 7 is located in the bending area BA and the non-bending area FA. The side of the display panel 1 and the first cover plate layer 2 opposite to the reinforcing member 7 is in contact with the reinforcing member 7, and the side of the support plate 8 opposite to the reinforcing member 7 in the non-bending area FA is in contact with the reinforcing member 7. The reinforcing member 7 has an opening 7a. At least part of the opening 7a is located in the bending area BA. The direction of the opening 7a is the direction of the display panel 1 pointing to the support plate 8. At least part of the opening 7a exposes the side of the support plate 8 in the bending area BA.

[0063] In this embodiment, by arranging the reinforcing member 7 on at least one side of the display panel 1, the edge crush drop strength of the display module is improved, and the failure risk caused by the edge collapse of the display module is prevented. At the same time, the opening 7a of the reinforcing member 7 is arranged in the bending area BA, and at least part of the area of the support plate 8 in the bending area BA is not in contact with the reinforcing member 7, which is also beneficial to the bending of the display module and avoids the hindering of the bending of the display module by the reinforcing member 7.

[0064] In one embodiment, the reinforcing member 7 is arranged around the display panel 1.

[0065] In some embodiments, the material of the support plate can be SUS, titanium alloy or a composite stacked structure.

[0066] In some embodiments, as shown in FIG. 1, the display module further comprises a first adhesive layer 5 located on the side of the display panel 1 close to the first cover plate layer 2. The edges of the first adhesive layer 5 are inwardly recessed relative to the edges of the display panel 1 and the edges of the first cover plate layer 2 to form first recesses. The reinforcing member 7 has first protrusions 71 which fill the first recesses. Figure 11

[0067] In the present embodiment, the first adhesive layer 5 is used to bond and fix the display panel 1 and the first cover plate layer 2. Since the first adhesive layer 5 is in a molten state when it is not solidified, in order to avoid the first adhesive layer 5 flowing to the outside of the display panel 1, the edges of the first adhesive layer 5 are inwardly recessed on the inside of the display panel 1 to form first recesses. In order to adapt to the overall structural features of the display module, the side surface of the reinforcing member 7 is also provided with first protrusions 71 for filling the first recesses, which can further enhance the structural strength of the display module. Moreover, the first protrusions 71 and the first recesses are fitted together, which increases the contact area between the reinforcing member 7 and the display panel 1, avoids the position of the reinforcing member 7 from being offset along the side surface, and improves the stability of the structure.

[0068] In some embodiments, the width of the edges of the first adhesive layer 5 inwardly recessed on the display panel 1 is different from the width of the edges of the first adhesive layer 5 inwardly recessed on the first cover plate layer 2. The width of the edges of the first adhesive layer 5 inwardly recessed on the display panel 1 is 0.2-0.4 mm, and the width of the edges of the first adhesive layer 5 inwardly recessed on the first cover plate layer 2 is 0.05-0.4 mm. In some embodiments, the width of the edges of the first adhesive layer 5 inwardly recessed on the display panel 1 can be 0.2 mm, 0.25 mm, 0.3 mm, 0.35 mm or 0.4 mm. In some embodiments, the width of the edges of the first adhesive layer 5 inwardly recessed on the first cover plate layer 2 can be 0.05 mm, 0.1 mm, 0.2 mm, 0.3 mm or 0.4 mm.

[0069] In some embodiments, the thickness of the first adhesive layer 5 in the direction in which the support plate 8 points to the first cover plate layer 2 is 0.02-0.05 mm. In some embodiments, the thickness of the first adhesive layer 5 can be 0.02 mm, 0.03 mm, 0.04 mm or 0.05 mm.

[0070] In some embodiments, the thickness of the first cover plate layer 2 in the direction in which the support plate 8 points to the first cover plate layer 2 is 0.1-0.3 mm. In some embodiments, the thickness of the first cover plate layer 2 can be 0.1 mm, 0.2 mm or 0.3 mm. ​

[0071] In some embodiments, as shown in FIG. 1, the display module further comprises a second adhesive layer 6 on the side of the first cover layer 2 away from the display panel 1, the edge of the second adhesive layer 6 is recessed relative to the edge of the first cover layer 2 to form a second recess, and the reinforcing member 7 has a second protrusion 72 filling in the second recess. Figure 11

[0072] In some embodiments, the side of the reinforcing member 7 can form both the first protrusion 71 and the second protrusion 72 to present a zigzag structure, thereby enhancing the bonding assembly strength.

[0073] In some embodiments, the side of the reinforcing member 7 can form both the first protrusion 71 and the second protrusion 72 to present a zigzag structure, thereby enhancing the bonding assembly strength.

[0074] In some embodiments, the second cover layer 4 is not in contact with the reinforcing member 7 to avoid the hindrance caused by the bending of the reinforcing member 7 to the second cover layer 4.

[0075] In some embodiments, the edge of the second cover layer 4 exceeds the edge of the display panel 1, and the distance between the edge of the second cover layer 4 and the edge of the display panel 1 ranges from 0.05 mm to 0.15 mm. In some embodiments, the distance between the edge of the second cover layer 4 and the edge of the display panel 1 can be 0.05 mm, 0.1 mm, or 0.15 mm.

[0076] In some embodiments, the thickness of the second cover layer 4 along the direction of the support plate 8 pointing to the first cover layer 2 is 0.085 mm.

[0077] In some embodiments, the material of the first adhesive layer 5 can be acrylic or silicon optical transparent adhesive. The material of the second adhesive layer 6 can be acrylic or silicon optical transparent adhesive.

[0078] In some embodiments, when the auxiliary structure comprises the anti-reflection structure 3 including the polarizing layer 31 on the bending area BA and the non-bending area FA, the second adhesive layer 6 comprises a first sub-adhesive layer 61 between the first cover layer 2 and the polarizing layer 31 and a second sub-adhesive layer 62 between the polarizing layer 31 and the second cover layer 4, the first sub-adhesive layer 61 is used to bond and fix the first cover layer 2 and the polarizing layer 31, and the second sub-adhesive layer 62 is used to bond and fix the polarizing layer 31 and the second cover layer 4. As the first adhesive layer 5, the second recess of the second adhesive layer 6 and the second protrusion 72 are fitted, the overall structure can be fixed, and the stability of the structure is improved.

[0079] ​In some embodiments, the edge of the first sub-adhesive layer 61 is flush with the edge of the polarizing layer 31, and the edge of the first sub-adhesive layer 61 is inwardly recessed from the width of the first cover plate layer 2 by 0.1-0.3 mm. The width by which the edge of the second sub-adhesive layer 62 is inwardly recessed from the polarizing layer 31 is different from the width by which the edge of the second sub-adhesive layer 62 is inwardly recessed from the second cover plate layer 4. The width by which the edge of the second sub-adhesive layer 62 is inwardly recessed from the polarizing layer 31 is 0.02-0.04 mm, and the width by which the edge of the second sub-adhesive layer 62 is inwardly recessed from the second cover plate layer 4 is 0.07-0.19 mm. In some embodiments, the width by which the edge of the second sub-adhesive layer 62 is inwardly recessed from the polarizing layer 31 can be 0.02 mm, 0.03 mm, or 0.04 mm. In some embodiments, the width by which the edge of the second sub-adhesive layer 62 is inwardly recessed from the second cover plate layer 4 can be 0.07 mm, 0.09 mm, 0.11 mm, 0.13 mm, 0.15 mm, 0.17 mm, or 0.19 mm.

[0080] In some embodiments, the total thickness of the first sub-adhesive layer 61 and the polarizing layer 31 in the direction in which the support plate 8 points towards the first cover plate layer 2 is 0.05-0.1 mm. In some embodiments, the total thickness of the first sub-adhesive layer 61 and the polarizing layer 31 in the direction in which the support plate 8 points towards the first cover plate layer 2 can be 0.05 mm, 0.07 mm, or 0.1 mm.

[0081] In some embodiments, the thickness of the second sub-adhesive layer 62 in the direction in which the support plate 8 points towards the first cover plate layer 2 is 0.02-0.05 mm. In some embodiments, the thickness of the second sub-adhesive layer 62 in the direction in which the support plate 8 points towards the first cover plate layer 2 can be 0.02 mm, 0.03 mm, 0.04 mm, or 0.05 mm.

[0082] In some embodiments, the side of the display panel 1 away from the first cover plate layer 2 is also provided with a back film 9, and the edge of the back film 9 is flush with the edge of the display panel 1.

[0083] In some embodiments, the edge of the support plate 8 is inwardly recessed from the display panel 1, and the width by which the edge of the support plate 8 is inwardly recessed from the display panel 1 is 0.05-0.15 mm.

[0084] In some embodiments, the thickness of the support plate 8 in the direction in which the support plate 8 points towards the first cover plate layer 2 is 0.25 mm.

[0085] In some embodiments, the portion of the support plate 8 located in the bending area BA forms spaced recesses 8a on the side surface extending in the direction in which the support plate 8 points towards the first cover plate layer 2. The provision of the recesses 8a helps to improve the bending capability of the support plate 8 and provides stress buffering space.

[0086] In some embodiments, the elastic modulus of the material of the portion of the reinforcing member 7 located in the non-bending area FA is greater than the elastic modulus of the material of the portion of the reinforcing member 7 located in the bending area BA.

[0087] In some embodiments, the elastic modulus of the material of the portion of the reinforcing member 7 located in the non-bending area FA is 400 Mpa-4000 Mpa. When the elastic modulus of the non-bending area FA is greater, the structural strength and the anti-extrusion capability of the display module can be improved.

[0088] In some embodiments, the elastic modulus of the material of the portion of the reinforcing member 7 located in the bending area BA is 0.03 Mpa-0.1 Mpa. When the elastic modulus of the bending area BA is smaller, the folding property of the panel can be achieved.

[0089] In some embodiments, the portion of the reinforcing member 7 located in the bending area BA is provided with a hydrophobic layer on the surface, which has a certain protective effect on the crack caused by the aggregation of sand particles in the environmental conditions. In some embodiments, the material of the hydrophobic layer can be fluorine-containing glue.

[0090] In some embodiments, the reinforcing member 7 can be made by 3D printing technology.

[0091] Based on the same inventive concept, the present application also provides a display device, which comprises the display module and the shell provided in the foregoing embodiments.

[0092] The display device provided in the embodiments of the present application can be any appropriate display device, including but not limited to a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, an electronic book, or any product or component having a display function.

[0093] It should be noted that the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

Claims

1. A display module, characterized by The display module comprises a bending area and a non-bending area located at least one side of the bending area; the display module comprises: a display panel located at the bending area and the non-bending area; a first cover plate layer located at the light-outgoing side of the display panel; the first cover plate layer comprises a main body layer and a filling material, the main body layer is provided with a groove located at the bending area, the filling material is filled in the groove, and the elastic modulus of the main body layer is greater than the elastic modulus of the filling material; an auxiliary structure located at least at the bending area, the auxiliary structure comprises an anti-reflection structure and / or a diffuse reflection structure; the anti-reflection structure is located at the side of the first cover plate layer away from the display panel, and the diffuse reflection structure is located at the side of the first cover plate layer away from the display panel or in the groove; a support plate located at the side of the display panel away from the first cover plate layer; a flexible reinforcing member, the reinforcing member is arranged at least one side of the display panel, and the reinforcing member is located at the bending area and the non-bending area, the side of the display panel and the first cover plate layer opposite to the reinforcing member is in contact with the reinforcing member, and the side of the support plate opposite to the reinforcing member is in contact with the reinforcing member in the non-bending area; the reinforcing member has an opening, at least part of the opening is located at the bending area, the opening direction of the opening is the direction in which the display panel points to the support plate, and at least part of the opening exposes the side of the support plate located in the bending area.

2. The display module of claim 1, wherein, When the auxiliary structure comprises the anti-reflection structure, the anti-reflection structure comprises a polarizing layer located at the bending area and the non-bending area.

3. The display module of claim 1, wherein, When the auxiliary structure comprises the anti-reflection structure, the anti-reflection structure comprises a polarizing layer located at the bending area and an organic layer located at the bending area and the non-bending area, the organic layer is located at the side of the polarizing layer away from the display panel, and the light transmittance of the organic layer is greater than the light transmittance of the polarizing layer.

4. The display module of claim 3, wherein, The thickness of the part of the organic layer located in the bending area in the direction in which the display panel points to the first cover plate layer is less than the thickness of the part of the organic layer located in the non-bending area in the direction.

5. The display module of claim 3, wherein, The surface of the organic layer facing the display panel is provided with a recess located at the bending area, and the polarizing layer is located in the recess.

6. The display module of claim 1, wherein, When the auxiliary structure comprises the diffuse reflection structure and the diffuse reflection structure is located in the groove, the diffuse reflection structure comprises scattering particles doped in the filling material, and the refractive index of the scattering particles is different from the refractive index of the filling material.

7. The display module of claim 1, wherein, When the auxiliary structure comprises the diffuse reflection structure and the diffuse reflection structure is located at the side of the first cover plate layer away from the display panel, the surface of the diffuse reflection structure away from the display panel is formed with a haze layer.

8. The display module of claim 1, wherein, The display module further comprises a second cover plate layer; the second cover plate layer is located at the side of the auxiliary structure away from the first cover plate layer, and the second cover plate layer comprises an anti-reflection film.

9. The display module of claim 1, wherein, The display module further comprises a first adhesive layer on a side of the display panel close to the first cover plate layer, edges of the first adhesive layer are recessed inward relative to edges of the display panel and edges of the first cover plate layer to form first recesses, and the reinforcing member has first protrusions that fill the first recesses. And / or, the display module further comprises a second adhesive layer on a side of the first cover plate layer away from the display panel, edges of the second adhesive layer are recessed inward relative to edges of the first cover plate layer to form second recesses, and the reinforcing member has second protrusions that fill the second recesses.

10. The display module of claim 1, wherein, The support plate has spaced recesses on a side of the portion of the support plate in the bending region that extends in a direction of the support plate toward the first cover plate layer.

11. The display module of claim 1, wherein, The reinforcing member has a greater modulus of elasticity in the portion of the reinforcing member in the non-bending region than in the portion of the reinforcing member in the bending region.

12. A display device comprising: The display device comprises the display module of any one of claims 1 to 11.

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