Display module and display device

Abstract

The invention provides a display module and a display device. The display module comprises a cover plate and a display assembly. Wherein the cover plate comprises a first arc-shaped section and second arc-shaped sections, the second arc-shaped sections are connected to the two opposite sides of the first arc-shaped section in a smooth transition mode, and the extending directions of the first arc-shaped section and the second arc-shaped sections are consistent; the display assembly is arranged on the inner side of the cover plate and adheres to the cover plate. The radius of the first arc-shaped section is larger than that of the second arc-shaped section. And by designing different radiuses of the cover plate, a lower screen compression ratio is realized, and the spherical laminating process is met.

Description

Technical Field

[0001] This application relates to the field of display technologies, and particularly to a display module and a display device. Background Art

[0002] Currently, AMOLED (Active-matrix organic light-emitting diode) wearable watches mainly come in square and round shapes. Inside the square and round shapes, there are 2D and 3D cover plate designs. Among them, the round 3D appearance design can give consumers a good visual sensory experience.

[0003] For the round 3D appearance design, a groove is dug in the middle of the cover plate, and the display module is attached to the plane of the groove. However, the display module cannot touch the side wall of the cover plate. Due to the fitting tolerance and the bending radius of the side wall, the display area will be relatively far from the edge of the cover plate, and users will feel that the black border is relatively large during actual use.

[0004] Therefore, it is necessary to design a display module that can be attached to a curved surface. Summary of the Invention

[0005] This application provides a display module and a display device, which can achieve a lower screen compression ratio and meet the spherical fitting process by designing the cover plate with different radii.

[0006] According to the first aspect of the embodiments of this specification, a display module is provided, including:

[0007] Further, a cover plate, including a first arc segment and a second arc segment, the second arc segment is smoothly connected to opposite sides of the first arc segment, and the extending directions of the first arc segment and the second arc segment are the same;

[0008] A display component, disposed inside the cover plate and adhered to the cover plate;

[0009] Wherein the radius of the first arc segment is greater than the radius of the second arc segment.

[0010] Further, the cover plate further includes a flat segment, the flat segment is smoothly connected to opposite sides of the second arc segment, and the extending direction of the flat segment is the same as that of the second arc segment.

[0011] Further, the first arc segment, the second arc segment, and the flat segment are an integrally formed structure.

[0012] Further, the tangent extension line of the outer side of the first arc segment in the horizontal direction forms an angle with the extension line of the flat segment, and the angle range of the angle is 60° to 88°.

[0013] Further, the minimum thickness of the cross-sectional portion of the first arc segment perpendicular to the extension direction is greater than or equal to the maximum thickness of the cross-sectional portion of the second arc segment perpendicular to the extension direction.

[0014] Further, the minimum thickness of the cross-sectional portion of the second arc segment perpendicular to the extension direction is greater than or equal to 0.9 mm.

[0015] Further, the distance between the horizontal plane where one end of the flat segment away from the second arc segment is located and the horizontal plane where the outer side of the cover plate is located is 3.5 mm to 5 mm.

[0016] Further, the orthographic projection portion of the display component on the inner side of the cover plate is located within the first arc segment and the second arc segment.

[0017] Further, the display component includes a first adhesive layer, the first adhesive layer is disposed between the cover plate and the display component, and the display component is adhered to the inner side of the cover plate through the first adhesive layer.

[0018] Further, the orthographic projection area of the first adhesive layer on the inner side of the cover plate is less than or equal to the orthographic projection area of the display component on the inner side of the cover plate.

[0019] Further, the display component further includes a display layer and a profiling film layer, the display layer is disposed on a side of the first adhesive layer away from the cover plate, and the profiling film layer is disposed on a side of the display layer away from the first adhesive layer.

[0020] Further, the profiling film layer includes a profiling interlayer, and the profiling interlayer protrudes in a spherical shape toward the display layer.

[0021] Further, the material of the profiling interlayer is silicone, PET, PC or ABS.

[0022] Further, the display layer is a flexible display layer.

[0023] According to the second aspect of the embodiments of the present specification, a display device is provided, including the display component described in the first aspect above.

[0024] The present application has the following beneficial effects:

[0025] The embodiments of the present application disclose a display component and a display device. The display module includes a cover plate and a display component; wherein the cover plate includes a first arc segment and a second arc segment, the second arc segment is smoothly connected to opposite sides of the first arc segment, and the extension directions of the first arc segment and the second arc segment are the same; the display component is disposed on the inner side of the cover plate and adhered to the cover plate; the radius of the first arc segment is greater than the radius of the second arc segment.

[0026] In spherical lamination, by designing the spherical lamination area of the cover plate with different radii, a lower screen compression ratio can be achieved to meet the spherical lamination process. In addition, in spherical lamination, an effective lamination between the display layer and the cover plate is achieved by using a first adhesive layer with a higher modulus, and no peeling or wrinkling occurs. In addition, through a special filling design for the profiling film layer, not only can the rapid lamination of the module be realized, but also the spherical lamination form can be better maintained. In addition, spherical lamination can avoid the interference problem between the conventional module stack and the cover plate, enable a smaller border, obtain a larger display area, and be favored by consumers.

[0027] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit this specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with this specification, and are used together with the specification to explain the principles of this specification.

[0029] Figure 1 is an exploded schematic view of the display module in an embodiment of the present application;

[0030] Figure 2 is a schematic structural view of the lamination of the cover plate and the display component in an embodiment of the present application;

[0031] Figure 3 is Figure 2 a partial structural view of

[0032] Figure 4 is a cross-sectional view of the cover plate in an embodiment of the present application;

[0033] Figure 5 is a schematic view of the compression state of the display layer in an embodiment of the present application;

[0034] Figure 6 is a schematic structural view of the profiling film layer in an embodiment of the present application.

[0035] DESCRIPTION OF REFERENCE NUMERALS:

[0036] 10 - cover plate; 11 - first arc segment; 111 - first arc surface; 112 - second arc surface; 12 - second arc segment; 121 - third arc surface; 122 - fourth arc surface; 13 - flat segment;

[0037] 20 - display component; 21 - first adhesive layer; 22 - display layer; 23 - profiling film layer; 231 - profiling interlayer; 2311 - spherical; 232 - adhesive layer; 233 - foam layer; 234 - metal layer; 24 - polarizer; 25 - second adhesive layer; 26 - circuit board. Detailed implementation manners

[0038] Here, exemplary embodiments will be described in detail, and examples thereof are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with this specification. On the contrary, they are merely examples of devices and methods consistent with some aspects of this specification as detailed in the appended claims.

[0039] The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit this specification. The singular forms "a", "the", and "said" used in this specification and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0040] It should be understood that although the terms first, second, third, etc. may be used in this specification to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this specification, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "when" or "while" or "in response to determining".

[0041] Current AMOLED (Active-matrix organic light-emitting diode) wearable watches are mainly divided into square and round appearances, and there are 2D and 3D CG designs inside the square and round ones. Among them, the 3D appearance design of the round one can give consumers a good visual sensory experience.

[0042] Therefore, the embodiments of the present application provide a spherical display module and a display device. The following combines the attached Figures 1-6 , and details the display module and the display device in the embodiments of the present application. Without conflict, the features in the following embodiments can be supplemented or combined with each other.

[0043] Refer to Figure 1As shown in the figure, this embodiment discloses a display module, which includes a cover plate 10 and a display component 20; the cover plate 10 includes a first arc section 11 and a second arc section 12, and the second arc section 12 is smoothly connected to opposite sides of the first arc section 11. The extending directions of the first arc section 11 and the second arc section 12 are the same, and the extending direction mentioned here is the bending extension toward the inner side of the cover plate; the display component 20 is arranged on the inner side of the cover plate 10 and adhered to the cover plate 10; the radius of the first arc section 11 is greater than the radius of the second arc section 12.

[0044] Compared with the related art, the display module is also attached within the plane of the groove dug in the cover plate 10, but the module cannot touch the side wall of the cover plate 10 because there is a fitting tolerance and the side wall of the cover plate 10 has a bending arc, which results in the display area being relatively far from the edge of the cover plate 10. When the user actually uses it, the black border will be felt to be relatively large.

[0045] In this embodiment, by designing the cover plate 10 with different radii, a lower screen compression ratio is achieved to meet the spherical fitting process.

[0046] Of course, in this embodiment, in addition to designing the cover plate 10 with different radii, the material of the film layer in the display component 20 is also improved to achieve true spherical fitting.

[0047] In a possible implementation manner, an effective fitting between the display module and the cover plate 10 is achieved by using a first adhesive layer 21 with a higher modulus, and the phenomena of falling off and wrinkling will not occur; in another possible implementation manner, through a special filling design of the cover plate 10 of the display module, both the rapid fitting of the module and the better maintenance of the spherical fitting form can be achieved; spherical fitting can avoid the interference problem between the conventional module stack and the cover plate 10, can achieve a smaller border, obtain a larger display area, and be favored by consumers.

[0048] Specifically:

[0049] In a possible implementation manner, as shown in the reference Figure 4 figure, the radius of the first arc section 11 is defined as a, and the radius range of a is 100 mm to 200 mm; the outer diameter of the cover plate 10 is between 35 mm and 46 mm, and the first arc section 11 is part of the cover plate 10; with such a setting, while ensuring the arc surface, the bending arc of the first arc section 11 can be reduced, so that the display module can be effectively attached.

[0050] In some embodiments, the radius of the first arc section 11 is 100 mm, 120 mm, 150 mm, 180 mm, 200 mm, etc. The radius of the first arc section 11 is not limited specifically here.

[0051] Among them, in this embodiment, the first arc segment 11 includes a first arc surface 111 and a second arc surface 112. The first arc surface 111 is arranged on the side close to the display component 20, and the second arc surface 112 is arranged on the side far from the display component 20. That is, the first arc surface 111 is arranged on the inner side of the first arc segment 11, and the second arc surface 112 is arranged on the outer side of the first arc segment 11. In this embodiment, the first arc surface 111 is set as an arc surface so that the curvature radii of all parts of the first arc surface 111 are the same; the second arc surface 112 is also set as an arc surface so that the curvature radii of all parts of the second arc surface 112 are the same.

[0052] In another possible implementation manner, the first arc surface 111 can be set as an elliptical arc surface or a parabolic arc surface, etc. That is, the cross-section in the extending direction of the first arc surface 111 can be an elliptical arc or a parabola, etc.; similarly, the second arc surface 112 can be set as an elliptical arc surface or a parabolic arc surface, etc. That is, the cross-section in the extending direction of the second arc surface 112 can be an elliptical arc or a parabola, etc.

[0053] It should be noted that the shape of the first arc surface 111 is not affected by the second arc surface 112. For example, when the first arc surface 111 is an arc surface, the second arc surface 112 can be an arc surface, an elliptical arc surface or a parabolic arc surface, etc.; similarly, when the second arc surface 112 is an elliptical arc surface, the first arc surface 111 can still be an arc surface, an elliptical arc surface or a parabolic arc surface, etc.

[0054] Furthermore, the radius of the second arc segment 12 is defined as b. However, considering that the smaller the value of b, the higher the processing capacity requirement for the cover plate 10, in a possible implementation manner, the radius range of b is 1 mm to 2 mm; specifically, in some embodiments, the radius of the second arc segment 12 is 1 mm, 1.2 mm, 1.5 mm, 1.8 mm, 2 mm, etc. The specific radius of the second arc segment 12 is not limited herein.

[0055] In this embodiment, the second arc segment 12 includes a third arc surface 121 and a fourth arc surface 122. The third arc surface 121 is arranged on the side close to the display component 20, and the fourth arc surface 122 is arranged on the side far from the display component 20. That is, the third arc surface 121 is arranged on the inner side of the second arc segment 12, and the fourth arc surface 122 is arranged on the outer side of the second arc segment 12. In this embodiment, the third arc surface 121 is set as an arc surface so that the curvature radii of all parts of the third arc surface 121 are the same; the third arc surface 121 is also set as an arc surface so that the curvature radii of all parts of the fourth arc surface 122 are the same.

[0056] In another possible implementation, the third arc-shaped surface 121 can be set as an elliptical arc surface, a parabolic arc surface, etc. That is, the cross-section in the extending direction of the third arc-shaped surface 121 can be an elliptical arc line, a parabola, etc. Similarly, the fourth arc-shaped surface 122 can be set as an elliptical arc surface, a parabolic arc surface, etc. That is, the cross-section in the extending direction of the fourth arc-shaped surface 122 can be an elliptical arc line, a parabola, etc.

[0057] It should be noted that the shape of the third arc-shaped surface 121 is not affected by the fourth arc-shaped surface 122. For example, when the third arc-shaped surface 121 is an arc surface, the fourth arc-shaped surface 122 can be an arc surface, an elliptical arc surface, a parabolic arc surface, etc. Similarly, when the fourth arc-shaped surface 122 is an elliptical arc surface, the third arc-shaped surface 121 can still be an arc surface, an elliptical arc surface, a parabolic arc surface, etc.

[0058] In a possible implementation, the cover plate 10 further includes a flat section 13. The flat section 13 is smoothly connected to the opposite sides of the second arc section 12, and the flat section 13 is in the same extending direction as the second arc section 12. As Figure 4 shown, the flat section 13 extends along the edge of the second arc section 12. The thickness of the flat section 13 and the second arc section 12 is basically the same, and the flat section 13 and the second arc section 12 are smoothly transitioned.

[0059] Wherein, the extension line of the tangent line in the horizontal direction on the outer side of the first arc section 11 forms an angle c with the extension line of the flat section 13. The range of the angle c is 60° to 88°. This angle ultimately determines the size of the cover plate 10. It should be noted that the angle mentioned here refers to an acute angle.

[0060] Specifically, in some embodiments, the degree of the angle formed by the extension line of the tangent line in the horizontal direction on the outer side of the first arc section 11 and the extension line of the flat section 13 can be 60°, 65°, 75°, 80°, 88°, etc. The specific degree of the angle formed by the extension line of the tangent line in the horizontal direction of the first arc section 11 and the extension line of the flat section 13 is not limited herein.

[0061] In a possible implementation, in order to further improve the overall structural strength of the cover plate 10, the first arc section 11, the second arc section 12 and the flat section 13 are an integrally formed structure.

[0062] In summary, the cover plate 10 mainly controls the shape of the cover plate 10 through a, b, and c. Specifically, a controls the overall structural shape of the cover plate 10; b controls the process strength of the surface fitting of the display component 20; c controls the overall structural size of the cover plate 10; so that the spherical fitting can avoid the interference problem between the conventional module stack and the cover plate 10, can achieve a smaller border, and is determined by a larger display area, and finally achieves a better fitting effect.

[0063] In a possible implementation manner, the cover plate 10 can be formed by thermoplastic bending. In another possible implementation manner, the cover plate 10 can also be manufactured by a Computer Numerical Control (CNC) process. The material of the cover plate 10 can be glass or other materials, which is not specifically limited herein.

[0064] On the one hand, due to the limitations of the manufacturing process, the cover plate 10 needs to have a certain thickness. On the other hand, when the cover plate 10 needs to improve its own structural strength, the cover plate 10 also needs to have a certain thickness, so as to ensure that the final cover plate 10 can be well attached to the display device. In a possible implementation manner, as Figure 4 shown, define the minimum thickness d of the cross-sectional part of the second arc segment 12 perpendicular to the extension direction, d≥0.9mm; specifically, in some embodiments, the thickness of the cover plate 10 is 0.9mm, 1mm, 1.2mm, 1.3mm, 2mm, etc., and the specific thickness of the cover plate 10 is not limited herein.

[0065] In a possible implementation manner, with reference to Figure 4 shown, the minimum thickness of the cross-sectional part of the first arc segment 11 perpendicular to the extension direction is greater than or equal to the maximum thickness of the cross-sectional part of the second arc segment 12 perpendicular to the extension direction; the advantage of such a setting is that, on the one hand, most of the display module is bonded to the first arc segment 11, and by increasing the thickness of the first arc segment 11, the load-bearing capacity borne by the first arc segment 11 can be improved; on the other hand, the bending amplitudes of the second arc segment 12 and the flat segment 13 are large, and reducing the thickness can facilitate the smoothness of the bending of the second arc segment 12 and the flat segment 13.

[0066] In a possible implementation manner, the thickness of the cross-sectional part of the second arc segment 12 perpendicular to the extension direction is the same as the thickness of the cross-sectional part of the flat segment 13 perpendicular to the extension direction.

[0067] Of course, in another possible implementation manner, the thicknesses of the first arc segment 11, the second arc segment 12, and the flat segment 13 are the same. Specifically, the thicknesses of the first arc segment 11, the second arc segment 12, and the flat segment 13 can be adjusted in combination with the bonding process of the display module on the cover plate 10 and its own bending curvature, etc., which is not specifically limited herein.

[0068] In a possible implementation manner, in order to ensure uniform stress on the first arc segment 11, the thickness of the cross-sectional part of the first arc segment 11 perpendicular to the extension direction is the same everywhere. Similarly, the thickness of the cross-sectional part of the second arc segment 12 perpendicular to the extension direction is the same everywhere; the thickness of the cross-sectional part of the flat segment 13 perpendicular to the extension direction is the same everywhere.

[0069] In a possible implementation, in order to enable the inner side of the cover plate 10 to completely accommodate the display component 20, the distance between the horizontal plane where one end of the flat section 13 away from the second arc section 12 is located and the horizontal plane where the outer side of the cover plate 10 is located is defined as f, where the range of f is 3.5 mm to 5 mm. Specifically, in some embodiments, the distance between the horizontal plane where one end of the flat section 13 away from the second arc section 12 is located and the horizontal plane where the outer side of the cover plate 10 is located is 3.5 mm, 4 mm, 4.2 mm, 4.5 mm, 5 mm, etc. Specifically, the distance between the horizontal plane where one end of the flat section 13 away from the second arc section 12 is located and the horizontal plane where the outer side of the cover plate 10 is located is not limited herein and can be adjusted in combination with the height of the display module.

[0070] In a possible implementation, referring to Figures 2-3 As shown, the orthographic projection of the display component 20 inside the cover plate 10 is located within the first arc section 11 and the second arc section 12. Compared with the orthographic projection of the display component 20 only located within the first arc section 11 inside the cover plate 10, the projection area of the display component 20 on the cover plate 10 is increased in this embodiment, and the black border is reduced.

[0071] For the convenience of attaching the display component 20, and after attachment, no problems such as cracks, bubbles, and edge wrinkles will be formed at the first arc section 11 and the second arc section 12 of the display component 20, so that display defects will not be caused. In a possible implementation, referring to Figure 3 As shown, the display component 20 includes a first adhesive layer 21. The first adhesive layer 21 is disposed between the cover plate 10 and the display component 20, and the display component 20 is adhered to the inner side of the cover plate 10 through the first adhesive layer 21.

[0072] Among them, the orthographic projection area of the first adhesive layer 21 on the inner side of the cover plate 10 is smaller than the orthographic projection area of the display component 20 on the inner side of the cover plate 10. The advantage of such a design is that when the display component 20 is bonded, extrusion causes the area of the first adhesive layer 21 to spread. By reducing the projection area of the first adhesive layer 21, it is possible to prevent the first adhesive layer 21 from overflowing.

[0073] In this embodiment, considering the bonding of the spherical surface, in order to prevent the display panel and the display module from falling off during the bonding process, the modulus of the first adhesive layer 21 is greater than or equal to 250 kPa. Optionally, the modulus of the first adhesive layer 21 can be 250 kPa, 255 kPa, 260 kPa, 270 kPa, 300 kPa, etc. Specifically, the modulus of the first adhesive layer 21 is not limited herein.

[0074] The first adhesive layer 21 for conventional attachment only needs to play a bonding role in terms of structure, but the first adhesive layer 21 for spherical attachment not only needs to play a bonding role, but also needs to support the film layer that has undergone compressive deformation after attachment, so that no stress rebound occurs and wrinkles are prevented from being generated. Therefore, it is necessary to increase the modulus of the first adhesive layer 21.

[0075] In addition, the materials of the first adhesive layer 21 are mainly divided into UV type and non-UV type. Since the curing rate of the first adhesive layer 21 under the ink of the cover plate 10 is not high, the non-UV type adhesive material has a better effect.

[0076] In the present exemplary embodiment, the preparation process of the first adhesive layer 21 may be as follows: Drop viscous glue on the inner sides of the first arc section 11 and the second arc section 12 of the cover plate 10, and then squeeze the glue through a roller to make the glue cover the bonding area. At this time, the glue is not completely cured; successively attach each film layer of the display component 20 on the uncured first adhesive layer 21, and then cure the glue of the first adhesive layer 21 by ultraviolet irradiation.

[0077] In a possible implementation manner, as shown in Figure 1 shown, the display component 20 further includes a display layer 22 and a profiling film layer 23. The display layer 22 is disposed on the side of the first adhesive layer 21 away from the cover plate 10, and the profiling film layer 23 is disposed on the side of the display layer 22 away from the first adhesive layer 21.

[0078] Among them, the display layer 22 includes a display substrate. The display substrate may be an OLED (Organic Electroluminesence Display) display substrate or a QLED (Quantum Dot Light Emitting Diodes) display substrate. The specific model of the display substrate will not be elaborated here.

[0079] In addition, the display layer 22 may further include a fingerprint recognition function layer, a touch function layer, etc., which are specifically adjusted in combination with the functions of the product and will not be elaborated here.

[0080] Furthermore, in the design of the display layer 22, both the deformation of the structure and whether cracks will occur in the internal functional layer during the compression process need to be considered. Currently, in spherical fitting, the main consideration is the compression amount, and the calculation method of the compression amount is: δ=(n - m) / n.

[0081] In this embodiment, as shown in Figure 5 shown, the diameter of the outer circle of the display layer 22 after fitting deformation is m, and the diameter of the outer shape of the display layer 22 before fitting is n. The height of the deformation is h. Specifically, the central compression situation of the display layer 22 can also be calculated by simulation software to determine whether the compression amount is within the normal range, which will not be elaborated here.

[0082] By calculating the ratio of the perimeter after deformation to the perimeter before deformation, the situation of the display layer 22 receiving compressive stress can be confirmed. In this embodiment, the compression amount range of the display layer 22 that needs to meet spherical fitting is 0.1% - 0.5%; optionally, the compression amount of the display layer 22 can be 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, etc., and the specific compression amount of the display layer 22 is not limited here.

[0083] In a possible implementation manner, the display layer 22 is a flexible display layer 22.

[0084] Of course, whether the display layer 22 is a rigid display layer or a flexible display layer, a layer of profiling film layer 23 needs to be attached to its back surface to achieve the effects of buffering, light shielding, and heat dissipation for the display layer 22.

[0085] Among them, in this embodiment, the profiling film layer 23 includes an adhesive layer 232, a foam layer 233, and a metal layer 234 arranged in sequence.

[0086] Specifically, the adhesive layer 232 is used to bond the structure of the profiling film layer 23 to the side of the display layer 22 away from the cover plate 10. The foam layer 233 has buffering and light shielding effects, and the metal layer 234 has a heat dissipation effect. The metal layer 234 can be copper foil, aluminum foil, etc., and the specific material is not limited here.

[0087] In a possible implementation manner, referring to Figure 6 As shown, the profiling film layer 23 further includes a profiling sandwich layer 231. The profiling sandwich layer 231 protrudes in a spherical shape toward the display layer 22 to support the display layer 22.

[0088] Among them, in this embodiment, the profiling sandwich layer 231 is designed with a spherical shape 2311 on one side and a flat surface on the other side. The spherical shape 2311 of the protrusion of the profiling sandwich layer 231 can completely match the curvature of the inner surface of the spherical cover plate 10. After the display layer 22 is pasted, the profiling film layer 23 is then pasted, and then the already pasted film layer is supported by the profiling sandwich layer 231 in the profiling film layer 23 to prevent subsequent possible deformations.

[0089] The profiling sandwich layer 231 is a single-sided spherical design, and this form can be obtained through an injection molding process. In a possible implementation manner, the material of the profiling sandwich layer 231 is silicone, PET, PC, or ABS.

[0090] In addition, during the process of spherical fitting, since the other side of the profiling film layer 23 is flat, the fitting method designed for the conventional functional layer can be used, and no special design is required during fitting, so the application range is wider. Of course, the other side of the profiling film layer 23 can also be other shapes, which are not limited here, and the shape can be adjusted in combination with the components bonded to the other side of the profiling film layer 23.

[0091] In this embodiment, the profiling interlayer 231 is arranged between the adhesive layer 232 and the foam layer 233, close to the display layer 22. With such an arrangement, the supporting effect is good.

[0092] Of course, the profiling interlayer 231 can also be arranged between the foam layer 233 and the metal layer 234, or on the side of the adhesive layer 232 away from the foam layer, etc. Specifically, it can be adjusted in combination with the lamination and manufacturing processes, and no limitation is imposed herein.

[0093] It should be noted that the profiling film layer 23 may not include the profiling interlayer 231, and the display layer 22 can be directly supported by the adhesive layer 232, the foam layer 233, and the metal layer 234; one or more of the adhesive layer 232, the foam layer 233, and the metal layer 234 are spherical on the side close to the display layer 22 like the profiling film layer 23, and the curvature of the convex sphere 2311 can exactly match the inner surface of the spherical cover plate 10. After the display layer 22 is laminated, the profiling film layer 23 is pasted, and then the laminated film layer is supported by the adhesive layer 232, the foam layer 233, and the metal layer 234 to prevent subsequent possible deformation.

[0094] In a possible implementation manner, the display module further includes a driver and a circuit board 26, etc. The driver and the circuit board 26, etc. are arranged on the side of the profiling film layer 23 away from the cover plate 10. The driver is used to provide a driving signal for driving the sub-pixels to emit light, and the circuit board 26 is used to supply power to the display layer 22.

[0095] In a possible implementation manner, the display module further includes a polarizer 24 located between the display layer 22 and the cover plate 10. A second adhesive layer 25 can also be provided between the display layer 22 and the polarizer 24. The display layer 22 and the polarizer 24 are bonded through the second adhesive layer 25, and the second adhesive layer 25 can be an OCA optical adhesive layer.

[0096] In a possible implementation manner, the display module further includes a heat dissipation film, which is arranged on the side of the display layer 22 away from the cover plate. With such an arrangement, the temperature can be reduced, the loss caused by heat can be reduced, and the aging speed of the display module can be decreased, thereby improving the service life of the display module.

[0097] This embodiment also discloses a display device, which includes any one of the display modules described in the above display module embodiments.

[0098] The display device in this embodiment can be a smart phone, a tablet laptop, a smart watch, or other types of display devices.

[0099] Since the display device has any one of the display modules described in the above display module embodiments, it has the same beneficial effects, that is, in spherical bonding, by designing the spherical bonding area of the cover plate 10 with different radii, a lower screen compression ratio can be achieved to meet the spherical bonding process.

[0100] In addition, in spherical bonding, the effective bonding of the display layer 22 and the cover plate 10 is achieved by using the first adhesive layer 21 with a higher modulus, and no peeling or wrinkling occurs. In addition, through special filling design of the profiling film layer 23, not only can the rapid bonding of the module be achieved, but also the spherical bonding form can be better maintained. In addition, spherical bonding can avoid the interference problem between the conventional module stack and the cover plate 10, can achieve a smaller border, obtain a larger display area, and is favored by consumers.

[0101] It should be noted that in addition to the above components, the display device also includes other necessary components and compositions. Taking a watch as an example, specifically, such as a case, a strap, etc. Those skilled in the art can make corresponding supplements according to the specific usage requirements of the display device, which will not be elaborated here.

[0102] It should be pointed out that in the drawings, the dimensions of layers and regions may be exaggerated for the sake of clarity of illustration. Moreover, it can be understood that when an element or layer is referred to as being "on" another element or layer, it can be directly on the other element, or there may be an intermediate layer. In addition, it can be understood that when an element or layer is referred to as being "under" another element or layer, it can be directly under the other element, or there may be more than one intermediate layer or element. In addition, it can also be understood that when a layer or element is referred to as being "between" two layers or two elements, it can be the only layer between the two layers or two elements, or there may be more than one intermediate layer or element. Similar reference numerals throughout indicate similar elements.

[0103] After considering the specification and practicing the invention described herein, those skilled in the art will readily conceive of other embodiments of the specification. The specification is intended to cover any variations, uses, or adaptations of the specification, which follow the general principles of the specification and include common general knowledge or conventional technical means in the technical field not claimed in this application. The specification and examples are only to be considered as exemplary, and the true scope and spirit of the specification are pointed out by the following claims.

[0104] It should be understood that the specification is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the specification is only limited by the appended claims.

[0105] The above are only the preferred embodiments of this specification and are not intended to limit this specification. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of this specification shall be included within the scope of protection of this specification.

Claims

1. A display module, characterized in that, it includes: a cover plate, including a first arc section and a second arc section, the second arc section is smoothly connected to opposite sides of the first arc section, and the extending directions of the first arc section and the second arc section are the same; a display component, disposed inside the cover plate and adhered to the cover plate; wherein the radius of the first arc section is greater than the radius of the second arc section.

2. The display module according to claim 1, characterized in that, the cover plate further includes a flat section, the flat section is smoothly connected to opposite sides of the second arc section, and the extending direction of the flat section is the same as that of the second arc section.

3. The display module according to claim 2, characterized in that, the first arc section, the second arc section and the flat section are of an integrally formed structure.

4. The display module according to claim 2, characterized in that, the tangent extension line in the horizontal direction on the outer side of the first arc section forms an angle with the extension line of the flat section, and the angle range of the angle is 60° - 88°.

5. The display module according to claim 2, characterized in that, the minimum thickness of the cross-section part of the first arc section perpendicular to the extending direction is greater than or equal to the maximum thickness of the cross-section part of the second arc section perpendicular to the extending direction.

6. The display module according to claim 5, characterized in that, the minimum thickness of the cross-section part of the second arc section perpendicular to the extending direction is greater than or equal to 0.9 mm.

7. The display module according to claim 2, characterized in that, the distance between the horizontal plane where one end of the flat section away from the second arc section is located and the horizontal plane where the outer side of the cover plate is located is 3.5 mm - 5 mm.

8. The display module according to claim 1, characterized in that, the orthographic projection part of the display component inside the cover plate is located within the first arc section and the second arc section.

9. The display module according to claim 1, characterized in that, the display component includes a first adhesive layer, the first adhesive layer is disposed between the cover plate and the display component, and the display component is adhered to the inner side of the cover plate through the first adhesive layer.

10. The display module according to claim 9, characterized in that, the orthographic projection area of the first adhesive layer on the inner side of the cover plate is less than or equal to the orthographic projection area of the display component on the inner side of the cover plate.

11. The display module according to claim 9, characterized in that, the display component further includes a display layer and a profiling film layer, the display layer is disposed on the side of the first adhesive layer away from the cover plate, and the profiling film layer is disposed on the side of the display layer away from the first adhesive layer.

12. The display module according to claim 11, characterized in that, the profiling film layer includes a profiling interlayer, and the profiling interlayer protrudes spherically towards the display layer.

13. The display module according to claim 12, characterized in that, the material of the profiling interlayer is silicone, PET, PC or ABS.

14. The display module according to claim 11, characterized in that, the display layer is a flexible display layer.

15. A display device, characterized in that, it includes the display module described in any one of claims 1-14.

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