Display device

Abstract

The application discloses a display device, comprising a curved cover plate, an optical adhesive layer and a display module arranged in sequence in the thickness direction thereof; the display module has a main display area and a peripheral area arranged around the main display area, the peripheral area comprises a first side edge area, a second side edge area and a corner area between the first side edge area and the second side edge area; the curved cover plate comprises a planar area and a curved area around the planar area, the curved area comprises a first side curved area, a second side curved area and a corner double curved area between the first side curved area and the second side curved area; wherein the edge of the corner area is a first circular fillet in an unbent state, the radius of the first circular fillet is R; the corner double curved area has a first edge connected with the planar area and a second edge away from the planar area, the first edge is a second circular fillet and the radius of the second circular fillet is r1, the second edge is a third circular fillet and the radius of the third circular fillet is r2; r1 < R < 2r1 or r1 < R < r2, and the Young's modulus of the display module is less than 1 Gpa.

Description

TECHNICAL FIELD

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

[0002] In recent years, flexible display products have obtained extensive attention because they can realize deformation such as stretching and bending, and the flexible display products become the preferred object of handheld electronic devices such as mobile phones and tablet computers. After the display panel and the curved cover plate are attached, the part exposed by the curved cover plate relative to the display panel forms a black border in the use process, and the black border greatly affects the appearance of the screen and reduces the visual experience of the user.

[0003] At present, in the deformation area of the flexible display product, the periphery of the display panel is simply stretched or compressed, that is, through the design of a large deformation amount, the periphery of the display panel is attached to the curved cover plate, the display area is increased at the four edge parts of the display panel to achieve a three-dimensional display effect. However, under the design of a large deformation amount, the space occupied by the display panel is increased, thereby reducing the resolution. SUMMARY

[0004] In view of the above defects or deficiencies in the prior art, it is desirable to provide a display device.

[0005] The embodiment of the present application provides a display device, comprising a curved cover plate, an optical adhesive layer and a display module which are sequentially arranged in the thickness direction thereof;

[0006] The display module has a main display area and a peripheral area arranged around the main display area, the peripheral area includes a first side edge area extending in a first direction, a second side edge area extending in a second direction, and a corner area located between the first side edge area and the second side edge area, and the first direction and the second direction are perpendicular to each other;

[0007] The curved cover plate includes a planar area and a curved area surrounding the planar area, the curved area includes a first side curved area extending in the first direction, a second side curved area extending in the second direction, and a corner double curved area located between the first side curved area and the second side curved area; wherein,

[0008] The edge of the corner area in the unbent state is a first circular fillet, and the radius of the first circular fillet is R;

[0009] The corner double curved area has a first edge connected with the planar area and a second edge away from the planar area, the first edge is a second circular fillet and the radius of the second circular fillet is r1, and the second edge is a third circular fillet and the radius of the third circular fillet is r2;

[0010] r1 < R < 2r1 or r1 < R < r2;

[0011] The Young's modulus of the display module is less than 1 Gpa.

[0012] In some embodiments, the length of the edge of the corner region in the bent state is less than the length of the edge of the corner region in the unbent state, and the relative difference between the length of the edge of the corner region in the bent state and the length of the edge of the corner region in the unbent state is a circumferential relative difference, and the circumferential relative difference is less than 10%.

[0013] In some embodiments, the circumferential relative difference is less than or equal to 5%.

[0014] In some embodiments, in any radial direction of the corner region, the radial length of the corner region in the bent state is less than the radial length of the corner region in the unbent state.

[0015] In any radial direction of the corner region, the relative difference between the radial length of the corner region in the bent state and the radial length of the corner region in the unbent state is a radial relative difference, and the radial relative difference is less than 5%.

[0016] In some embodiments, in the unbent state of the display module, the corner region has a first adjacent boundary and a second adjacent boundary perpendicular to each other, and the direction of the 45° angle between the first adjacent boundary and the second adjacent boundary is a middle position.

[0017] In the direction from the middle position to the first adjacent boundary, the radial relative difference gradually decreases.

[0018] In the direction from the middle position to the second adjacent boundary, the radial relative difference gradually decreases.

[0019] In some embodiments, the radius r2 of the third circular fillet is calculated according to the following formula:

[0020] r2 = r1 + γ + 1 / 2h

[0021] γ is the radius of curvature of the corner hyperbolic region, and h is the thickness of the curved cover plate.

[0022] In some embodiments, the display module comprises a display panel and a back film stacked in the thickness direction thereof, and the back film is farther away from the optical adhesive layer than the display panel; wherein,

[0023] The Young's modulus of the display panel is less than 1 Gpa, and the Young's modulus of the back film is less than 1 Gpa.

[0024] In some embodiments, an area of the portion of the display panel corresponding to the corner region of the display module in the unbent state is less than or equal to an area of the corner hyperbolic region of the curved cover plate.

[0025] The first direction and the second direction are parallel to the same reference plane, and a normal projection of the display panel on the reference plane in a state where the display module is attached to the curved cover plate is less than a normal projection of the corner hyperbolic region of the curved cover plate on the reference plane.

[0026] In some embodiments, the portion of the display panel corresponding to the corner region of the display module is provided with a plurality of opening structures.

[0027] In some embodiments, the display module further comprises an optical film layer located on a side of the display panel facing the optical adhesive layer, and the Young's modulus of the optical film layer is less than 1 Gpa.

[0028] The technical scheme provided by the embodiments of the present application can include the following beneficial effects:

[0029] The display device provided by the embodiments of the present application improves the display effect of the display device by designing the contour size of the curved cover plate and the display module at the four corners, reducing the deformation of the display panel, and improving the attachment effect between the display panel and the curved cover plate. BRIEF DESCRIPTION OF DRAWINGS

[0030] Other features, objects, and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments, read in conjunction with the accompanying drawings:

[0031] Figure 1 A side view structural schematic diagram of the display device provided by the embodiments of the present application is shown in the figure;

[0032] Figure 2 A planar schematic diagram of the display module provided by the embodiments of the present application before being attached to the curved cover plate is shown in the figure;

[0033] Figure 3 A structural schematic diagram of the display module provided by the embodiments of the present application after being attached to the curved cover plate is shown in the figure;

[0034] Figure 4 A side view structural schematic diagram of the curved cover plate provided by the embodiments of the present application is shown in the figure;

[0035] Figure 5 A top view structural schematic diagram of the curved cover plate provided by the embodiments of the present application is shown in the figure;

[0036] Figure 6 A structural schematic diagram of the display module and the curved cover plate provided by the embodiments of the present application is shown in the figure, and the display module and the curved cover plate are not attached.

[0037] Figure 7 The schematic diagram of the fixed size of the curved cover plate (for example, r1=5.00 mm and r2=8.68 mm) and the influence degree of the radius R on the deformation amount of the corner area is provided for the embodiments of the present application. DETAILED DESCRIPTION

[0038] The present application will be further described below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are merely intended for the purpose of interpretation of the present application and are not limiting to the present application. In addition, it should be noted that only the parts related to the present application are shown in the drawings for the purpose of description.

[0039] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0040] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0041] The present application uses first, second, etc. to describe various information, but these 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, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information without departing from the scope of the present application.

[0042] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be a fixed connection, or a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements, it can be a wireless connection, or a wired connection. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0043] As Figure 1As shown, the embodiment of the present application provides a display device, which comprises a curved cover plate 1, an optical adhesive layer 2 and a display module 3 arranged in sequence in the thickness direction, that is, the display module 3 is attached to the curved cover plate 1 through the optical adhesive layer 2.

[0044] As shown, Figure 2 and Figure 3 The display module 3 has a main display area 300 and a peripheral area surrounding the main display area 300, the peripheral area includes a first side edge area 301 extending in a first direction A, a second side edge area 302 extending in a second direction B, and a corner area 303 between the first side edge area 301 and the second side edge area 302, the first side edge area 301 includes a first side edge display area 3011 close to the main display area 300 and a first side edge non-display area 3012 away from the main display area 300, the second side edge area includes a second side edge display area 3021 close to the main display area 300 and a second side edge non-display area 3022 away from the main display area 300, the corner area 303 includes a corner display area 3031 close to the main display area 300 and a corner non-display area 3032 away from the main display area 300, the first direction A and the second direction B are perpendicular to each other. It can be understood that the display module 3 is a flexible display module, the main display area 300, the first side edge display area 3011, the second side edge display area 3021 and the corner display area 3031 can jointly constitute the entire display area of the display module 3, that is, the entire display area of the display device; the first side edge non-display area 3012, the second side edge non-display area 3022 and the corner non-display area 3032 are the entire non-display area of the display module, that is, the entire non-display area of the display device.

[0045] As shown, Figure 4 and Figure 5 The curved cover plate 1 includes a planar area 100 and a curved area surrounding the planar area 100, the curved area includes a first side curved area 101 extending in the first direction A, a second side curved area 102 extending in the second direction B, and a corner double curved area 103 between the first side curved area 101 and the second side curved area 102. The four edges of the curved cover plate 1 are single curved areas, and the four corners are double curved areas, and the curved cover plate 1 is a four-edge curved structure.

[0046] As shown, Figure 2 The corner area 303 has a first circular fillet at the edge in the unbent state, and the radius of the first circular fillet is R;

[0047] As shown, Figure 5 The corner double curved area 103 has a first edge connected to the planar area 100 and a second edge away from the planar area 100, the first edge has a second circular fillet and the radius of the second circular fillet is r1, and the second edge has a third circular fillet and the radius of the third circular fillet is r2;

[0048] r1 < R < 2r1 or r1 < R < r2.

[0049] In this embodiment, the first direction A and the second direction B are parallel to each other in the same reference plane, and the normal projection of the curved cover plate 1 and the display module 3 on the reference plane before the two are attached can be rectangular, and the driving plate 31 of the display module 3 is ignored here;

[0050] The normal projection of the first side edge area 301 and the second side edge area 302 in the reference plane can be rectangular, and the normal projection of the corner area 303 in the reference plane can be an arc-shaped area. The corner area 303 can have a first adjacent boundary 3033, an inner edge 3034, a second adjacent boundary 3035, and an outer edge 3036 connected in sequence. The first adjacent boundary 3033 is the edge of the corner area 303 connected with the first side edge area 301, and the second adjacent boundary 3035 is the edge of the corner area 303 connected with the second side edge area 302. The first adjacent boundary 3033 and the second adjacent boundary 3035 are perpendicular to each other.

[0051] When the radius R of the first circular corner is between the radius r1 of the second circular corner and twice r1, or when the radius R of the first circular corner is between the radius r1 of the second circular corner and the radius r2 of the third circular corner, during the process of attaching the display module 3 to the curved cover plate 1, a high degree of attachment between the corner area of the display module 3 and the corner hyperbolic area of the curved cover plate 1 under a small deformation amount is achieved.

[0052] In this embodiment, the Young's modulus of the display module 3 is less than 1 Gpa (i.e. 1000 Mpa), preferably 200 Mpa-700 Gpa, such as 200 Mpa, 300 Mpa, 400 Mpa, 500 Mpa, 600 Mpa, 700 Mpa, etc., which is much smaller than the Young's modulus of the display module in the prior art (about 100 Gpa), so that the corner area of the display module is easily deformed. The contour size design of the display module 3 and the curved cover plate 1 at the four corners makes the stretching / compression amount of the corner area 303 after the display module 3 and the curved cover plate 1 are attached meet the requirements. In this way, the corner area of the display module 3 is designed to have a small deformation amount, and the display module 3 and the curved cover plate 1 have a good degree of attachment, which is beneficial to improve the resolution of the display device.

[0053] In some embodiments, referring to Figure 2 , Figure 3 and Figure 6 , the length of the edge of the corner area 303 in the bent state is less than the length of the edge of the corner area 303 in the unbent state, and the relative difference between the length of the edge of the corner area 303 in the bent state and the length of the edge of the corner area 303 in the unbent state is a circumferential relative difference, and the circumferential relative difference is less than 10%.

[0054] That is, the length L' of the outer edge 3036 in the bent state (refer to Figure 3 ) is less than the length L of the outer edge 3036 in the unbent state (refer to Figure 2 ), and the circumferential relative difference C1 is calculated as follows:

[0055] C1 = (L' - L) / L;

[0056] L is the length of the outer edge 3036 in the unbent state;

[0057] L' is the length of the outer edge 3036 in the bent state.

[0058] In this embodiment, the corner area 303 ensures good adhesion of the corner area 303 to the corner hyperbolic area 103 when the display module 3 is attached to the curved cover plate 1, and the compression amount of the outer edge 3036 in the circumferential direction is less than 10%.

[0059] In some embodiments, the circumferential relative difference is less than or equal to 5%, so that the corner area 303 can achieve good adhesion of the display module 3 to the curved cover plate 1 at the four corners with as little deformation as possible.

[0060] Referring to the following simulation data and adhesion results:

[0061] For example, L = 11.11 mm, L' = 10.9 mm, C1 = -1.89%, and the display module 3 and the curved cover plate 1 are attached without wrinkles; for example, L = 12.11 mm, L' = 11.62 mm, C1 = -4.0%, and the display module 3 and the curved cover plate 1 are attached without wrinkles. Obviously, the corner area 303 can achieve good adhesion of the display module 3 to the curved cover plate 1 at the four corners with as little deformation as possible, thereby improving the resolution of the display device.

[0062] In some embodiments, in any radial direction of the corner area 303, the radial length of the corner area 303 in the bent state is less than the radial length of the corner area 303 in the unbent state;

[0063] In any radial direction of the corner area 303, the relative difference between the radial length of the corner area 303 in the bent state and the radial length of the corner area 303 in the unbent state is a radial relative difference, and the radial relative difference is less than 5%.

[0064] For example, in the radial direction of the first adjacent boundary 3033, the radial relative difference is less than 5%; similarly, in the radial direction of the second adjacent boundary 3035, or in any radial direction between the first adjacent boundary 3033 and the second adjacent boundary 3035, the radial relative difference is less than 5%.

[0065] For example, the radial relative difference C2 is calculated according to the following formula:

[0066] C2 = (R2 - R1) / R1;

[0067] In the same radial direction, R1 is the length of the corner area 303 in the radial direction in the unbent state, and R2 is the length of the corner area 303 in the radial direction in the bent state.

[0068] In this embodiment, the radial relative difference in any radial direction within the corner area 303 is less than 5%, and the deformation amount of the corner area 303 in the circumferential direction, so that the corner area 303 can achieve good fitting of the display module 3 and the curved cover plate 1 at the four corners in the case of small deformation amount, thereby improving the resolution of the display device.

[0069] In some embodiments, the direction of the 45° angle between the first adjacent boundary and the second adjacent boundary is the middle position;

[0070] The radial relative difference gradually decreases from the direction of the middle position to the first adjacent boundary;

[0071] The radial relative difference gradually decreases from the direction of the middle position to the second adjacent boundary.

[0072] That is, after the display module 3 and the curved cover plate 1 are fitted, the radial relative difference in the middle position is the largest, that is, the deformation amount in the direction of the 45° angle is the largest; from the direction of the middle position to the two adjacent boundaries, the deformation amount gradually decreases.

[0073] Figure 6 The structural schematic diagram of the display module and the curved cover plate provided by the embodiment of the present application is provided when the display module and the curved cover plate are stacked and the display module and the curved cover plate are not fitted. Figure 7 The schematic diagram of the influence degree of the radius R on the deformation amount of the corner area provided by the embodiment of the present application is provided when the size of the curved cover plate is fixed (for example, r1 = 5.00 mm and r2 = 8.68 mm).

[0074] Figure 7 The middle L1 direction is the circumferential direction of the corner area 303, the D1 direction is the radial direction of the first adjacent boundary 3033, and the 45° direction is the middle position between the first adjacent boundary 3033 and the second adjacent boundary 3035.

[0075] Combined with Figure 6 , Figure 7 and simulation data, the deformation amount of the corner area 303 is described as follows:

[0076] The case in the prior art is r1=5.00 mm, r2=8.68 mm, R=10.00 mm, and the compression amount of the display module and the curved cover plate after being attached in the L1 direction is 2.3%, and the compression amount in the D1 direction is 2.6%;

[0077] In the optimization design 1, the shape of the curved cover plate is fixed (for example, r1=5.00 mm and r2=8.68 mm), and the outer contour of the display module is changed. The r1=5.00 mm, r2=8.68 mm, and R=7.06 mm. The compression amount of the display module and the curved cover plate after being attached in the L1 direction is 1.8%, and the compression amount in the D1 direction is 1.8%. In combination Figure 7 It can be seen that when R is about 7, the deformation amount of the corner area 303 and the corner area 103 after being attached in the L1 direction and the D1 radial direction is relatively small, which meets the requirement of reducing the deformation amount of the display panel;

[0078] In the optimization design 2, the shape of the display module is fixed (for example, R=10.00 mm), and the outer contour of the curved cover plate is changed. The r1=7.04 mm, R=10.00 mm, and r2=10.96 mm. The compression amount of the display module and the curved cover plate after being attached in the L1 direction is 1.5%, and the compression amount in the D1 direction is 1.5%.

[0079] In some embodiments, the radius r2 of the third circular corner is calculated according to the following formula:

[0080] r2=r1+γ+1 / 2h;

[0081] With reference to Figure 4 , γ is the curvature radius of the corner hyperbolic area 103, and h is the thickness of the curved cover plate 1. Thus, based on r1

[0082] In addition, r1

[0083] In some embodiments, the display module 3 includes a display panel and a back film which are arranged in a stacking manner in the thickness direction of the display module 3. The back film is farther away from the optical adhesive layer 2 than the display panel.

[0084] The Young's modulus of the display panel is less than 1 Gpa, and the Young's modulus of the back film is less than 1 Gpa.

[0085] The Young's modulus of the aforementioned display module 3 is less than 1 Gpa, preferably the Young's modulus of the display panel and the Young's modulus of the back plate are both less than 1 Gpa, and the contour size design of the display module 3 and the curved cover plate 1 at the four corners meets the requirement that the corner area 303 has a small deformation amount when the display module 3 is attached to the curved cover plate 1, that is, it meets the stretching / compression requirement.

[0086] In some embodiments, the area of the part of the display panel corresponding to the corner area 303 of the display module 3 in the unbent state is less than or equal to the area of the corner hyperbolic area 103 of the curved cover plate 1.

[0087] In the state that the display module 3 is attached to the curved cover plate 1, the orthographic projection of the part of the display panel corresponding to the corner area 303 on the reference plane is less than the orthographic projection of the corner hyperbolic area 103 of the curved cover plate 1 on the reference plane, avoiding the display module 3 exceeding the curved cover plate 1.

[0088] Since the curved cover plate 1 is a four-side curved structure, the curved area has a certain inclination angle compared to the flat area, so when viewing the display device at the normal viewing angle, the part of the display panel corresponding to the corner area 303 is bent into a hyperbolic three-dimensional structure, the corner display area 3031 can be displayed, and the corner non-display area 3032 and the curved area of the curved cover plate 1 are almost not visible or only a small part is visible, achieving the effect of no frame or almost no frame.

[0089] In some embodiments, the part of the display panel corresponding to the corner area 303 of the display module 3 is provided with a plurality of opening structures.

[0090] In this way, when the corner area 303 is bent into a hyperbolic three-dimensional structure, the opening structure makes the corner area 303 have a deformable performance, ensuring that the corner area 303 is well attached to the corner hyperbolic area 103.

[0091] In some embodiments, the display module 3 further comprises an optical film layer, the optical film layer is located on the side of the display panel facing the optical adhesive layer 2, and the Young's modulus of the optical film layer is less than 1 Gpa.

[0092] Specifically, the optical film layer can be a polarizing sheet, which is beneficial to reduce reflected light.

[0093] The Young's modulus of the optical film layer is also less than 1 Gpa, ensuring that the Young's modulus of the display module 3 is less than 1 Gpa, meeting the stretching / compression deformation requirement of the corner area 303.

[0094] The above description is only the preferred embodiment of the present application and the explanation of the applied technical principles. It should be understood by those skilled in the art that the inventive scope involved in the present application is not limited to the technical solutions formed by the specific combination of the technical features described above, and should also cover other technical solutions formed by the combination of the technical features described above or their equivalent features without departing from the inventive concept. For example, the technical solutions formed by the mutual replacement of the above features and the technical features with similar functions disclosed in the present application (but not limited to) without departing from the inventive concept.

Claims

1. A display device, characterized in that: It includes a curved cover plate, an optical adhesive layer and a display module which are sequentially arranged in the thickness direction thereof; The display module comprises a main display area and a peripheral area arranged around the main display area, wherein the peripheral area comprises a first side area extending in a first direction, a second side area extending in a second direction, and a corner area located between the first side area and the second side area, wherein the first direction and the second direction are perpendicular to each other; The curved cover plate includes a flat area and a curved area surrounding the flat area, wherein the curved area includes a first side curved area extending in the first direction, a second side curved area extending in the second direction, and a corner hyperbolic area located between the first side curved area and the second side curved area; wherein The edge of the corner area in an unbent state is a first rounded chamfer, and the radius of the first rounded chamfer is R; The corner hyperbolic area has a first edge connected to the plane area and a second edge away from the plane area, the first edge has a second rounded chamfer angle with a radius of r1, and the second edge has a third rounded chamfer angle with a radius of r2; r1<R<2r1 or r1<R<r2; The Young's modulus of the display module is less than 1 GPa; The radius r2 of the third round chamfer is calculated according to the following formula: r2=r1+γ+1 / 2h γ is the curvature radius of the corner hyperbolic region, and h is the thickness of the curved cover plate.

2. The display device according to claim 1, wherein The length of the edge of the corner area in the bent state is smaller than the length of the edge of the corner area in the unbent state, and the relative difference between the length of the edge of the corner area in the bent state and the length of the edge of the corner area in the unbent state is the circumferential relative difference, and the circumferential relative difference is less than 10%.

3. The display device according to claim 2, wherein: The circumferential relative difference is less than or equal to 5%.

4. The display device according to claim 1, wherein In any radial direction of the corner area, the radial length of the corner area in a bent state is smaller than the radial length of the corner area in an unbent state; In any radial direction of the corner area, a relative difference between a radial length of the corner area in a bent state and a radial length of the corner area in an unbent state is a radial relative difference, and the radial relative difference is less than 5%.

5. The display device according to claim 4, wherein: When the display module is in an unbent state, the corner region has a first adjacent boundary and a second adjacent boundary that are perpendicular to each other, and the direction of the 45° angle between the first adjacent boundary and the second adjacent boundary is the middle position; In a direction from the middle position to the first adjacent boundary, the radial relative difference gradually decreases; The radial relative difference gradually decreases in a direction from the middle position to the second adjacent boundary.

6. The display device according to any one of claims 1 to 5, characterized in that: The display module includes a display panel and a back film stacked in the thickness direction thereof, wherein the back film is farther away from the optical adhesive layer than the display panel; wherein The Young's modulus of the display panel is less than 1 GPa, and the Young's modulus of the back film is less than 1 GPa.

7. The display device according to claim 6, wherein: The area of ​​the portion of the display panel corresponding to the corner area of ​​the display module in an unbent state is less than or equal to the area of ​​the hyperbolic corner area of ​​the curved cover plate; The first direction and the second direction are parallel to the same reference plane. When the display module is attached to the curved cover plate, the orthographic projection of the display panel on the reference plane is smaller than the orthographic projection of the hyperbolic corner area of ​​the curved cover plate on the reference plane.

8. The display device according to claim 6, wherein: The display panel is provided with a plurality of opening structures at a portion corresponding to a corner area of ​​the display module.

9. The display device according to claim 6, wherein: The display module further includes an optical film layer, which is located on a side of the display panel facing the optical adhesive layer. The Young's modulus of the optical film layer is less than 1 GPa.

Images