CN113348495A

CN113348495A - Display device, preparation method and electronic equipment

Info

Publication number: CN113348495A
Application number: CN201980079836.6A
Authority: CN
Inventors: 王帅
Original assignee: Shenzhen Royole Technologies Co Ltd
Current assignee: Shenzhen Royole Technologies Co Ltd
Priority date: 2019-05-29
Filing date: 2019-05-29
Publication date: 2021-09-03
Also published as: WO2020237518A1

Abstract

A display device (1) comprises a bending structure (20) and a flexible display module (10) arranged on the bending structure (20). The bending structure (20) can be bent and drives the flexible display module (10) to bend. The flexible display module (10) comprises a bending part (11) and a non-bending part (12), and the elastic modulus of the bending part (11) is smaller than that of the non-bending part (12). Different positions in the flexible display module (10) are controlled to have different elastic moduli, so that the flexible display module (10) has excellent comprehensive performance, and the degree of the wrinkle phenomenon and the local bending phenomenon generated by the flexible display module (10) is reduced. A method of manufacturing a display device (1) and an electronic apparatus (2).

Description

Display device, preparation method and electronic equipment

Technical Field

The application belongs to the technical field of electronic products, and particularly relates to a display device, a preparation method and electronic equipment.

Background

With the continuous development of electronic devices, foldable electronic devices are popular with consumers due to their large-sized display screens, rich and varied operability and playability. But the display module assembly hardness of present collapsible electronic equipment is lower, makes the display module assembly damage easily. Moreover, the display module has low hardness and needs to be bent frequently, so that the display module is prone to have poor phenomena such as wrinkles or local bending in the bending area.

Content of application

In view of this, the application provides a display device, a manufacturing method thereof, and an electronic apparatus, by controlling different portions of a flexible display module to have different elastic moduli, that is, the elastic modulus of a bending portion is smaller than that of a non-bending portion, the flexible display module has excellent comprehensive performance, and the degree of the flexible display module that generates a wrinkle phenomenon and a local bending phenomenon is reduced, so that the flexible display module has great practicability.

The application provides a display device in a first aspect, the display device includes the structure of buckling and locates the flexible display module assembly on the structure of buckling, the structure of buckling can buckle and drive the flexible display module assembly is buckled, the flexible display module assembly includes kink and non-kink, the modulus of elasticity of kink is less than the modulus of elasticity of non-kink.

According to the display device provided by the first aspect of the application, the flexible display module is arranged into the bending part and the non-bending part, and the elastic modulus of the bending part is smaller than that of the non-bending part. Through the setting, the bending part with the smaller elastic modulus is used for bending the flexible display module, and the non-bending part which does not need to be bent can increase the elastic modulus, so that the hardness of the whole flexible display module is improved, and the problem of the surplus performance of the flexible display module is solved. In addition, since only the bent portion has a smaller elastic modulus, the elastic modulus of the non-bent portion is greater than that of the bent portion. Therefore, for the flexible display module, the internal loss is only generated in the bending part, which is equivalent to reducing the range of the internal loss, increasing the bending and rebounding performance of the flexible display module, and effectively reducing the degree of the wrinkle phenomenon and the local bending phenomenon generated by the bending part.

A second aspect of the present application provides a method of manufacturing a display device, the method comprising:

providing a bending structure; and

the flexible display module is formed on the bending structure and comprises a bending part and a non-bending part, and the elastic modulus of the bending part is smaller than that of the non-bending part.

The manufacturing method of the display device provided by the second aspect of the application is simple in manufacturing process and low in cost, and the flexible display module comprising the bending part and the non-bending part is manufactured, and the elastic modulus of the bending part is smaller than that of the non-bending part. The flexible display module can effectively improve the hardness of the flexible display module, reduce the range of internal consumption, increase the bending and rebounding performance, and effectively reduce the degree of the wrinkle phenomenon and the local bending phenomenon generated by the bending part.

A third aspect of the present application provides an electronic device, where the electronic device includes a housing, and a main board and a display device that are disposed in the housing, the main board is electrically connected to the display device, and the display device includes the display device provided in the first aspect of the present application.

The electronic equipment that this application third aspect provided, through using the display device that this application first aspect provided, can improve electronic equipment's hardness effectively, reduce the scope that interior consumption produced, increase the performance of buckling and resilience, reduce the degree of fold phenomenon and local bending phenomenon that the kink produced in the flexible display module assembly effectively.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the embodiments of the present application will be described below.

Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present application.

Fig. 2 is a schematic view of the display device after being bent according to the embodiment of the present application.

Fig. 3 is a schematic view of a bending structure in an embodiment of the present application.

Fig. 4 is a schematic view of a flexible display module according to a first embodiment of the present disclosure.

Fig. 5 is a schematic view of a flexible display module according to a second embodiment of the present disclosure.

Fig. 6 is a schematic view of a flexible display module according to a third embodiment of the present application.

Fig. 7 is a schematic view of a flexible display module according to a fourth embodiment of the present application.

Fig. 8 is a sectional view taken along the line a-a in fig. 7.

Fig. 9 is a schematic view of a flexible display module according to a fifth embodiment of the present application.

Fig. 10 is a schematic structural diagram of a display device according to a first embodiment of the present application.

Fig. 11 is a schematic structural diagram of a display device according to a second embodiment of the present application.

Fig. 12 is a schematic structural diagram of a display device according to a third embodiment of the present application.

Fig. 13 is a schematic structural diagram of a display device according to a fourth embodiment of the present application.

Fig. 14 is a schematic structural view of a display device according to a fifth embodiment of the present application.

Fig. 15 is a schematic structural view of a display device according to a sixth embodiment of the present application.

Fig. 16 is a schematic structural diagram of a display device according to a seventh embodiment of the present application.

Fig. 17 is a schematic structural view of a display device according to an eighth embodiment of the present application.

Fig. 18 is a process flow diagram of a method of manufacturing a display device in an embodiment of the present application.

Fig. 19 is a schematic view showing a structure of a display device in a manufacturing process.

Fig. 20 is a schematic diagram of an electronic device in an embodiment of the present application.

Description of the drawings:

a display device-1, a flexible display module-10, a bending part-11, a sub-bending part-111, a non-bending part-12, a first end-13, a second end-14, a middle part-15, a transition part-16, a substrate-110, a support layer-120, a first support part-121, a second support part-122, a display screen-130, a packaging layer-140, a polarizer-150, a first light deflection part-151, a second light deflection part-152, a touch panel-160, a first touch part-161, a second touch part-162, a cover plate-170, a first protection part-171, a second protection part-172, an optical glue layer-180, a first connection part-181, a second connection part-182, a first optical glue layer-183, a second optical glue layer-184, the optical fiber comprises a third optical adhesive layer-185, a buffer part-186, a first part-187, a second part-188, a third part-189, a bending structure-20, a rotating shaft part-21, a rotating shaft-211, a shell-22, a first shell-221, a second shell-222, an electronic device-2, a shell-3 and a mainboard-4.

Detailed Description

The following is a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present application, and these improvements and modifications are also considered as the protection scope of the present application.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present disclosure. The embodiment of the application provides a display device 1, the display device 1 comprises a bending structure 20 and a flexible display module 10 arranged on the bending structure 20. The bending structure 20 can be bent and drive the flexible display module 10 to bend. The flexible display module 10 includes a bending portion 11 and a non-bending portion 12, and an elastic modulus of the bending portion 11 is smaller than an elastic modulus of the non-bending portion 12.

Next, the present application first briefly introduces the display device 1 and the respective components.

The display device 1 mainly plays a role of displaying in the electronic apparatus 2, and is used for converting an electric signal into an optical signal and emitting light to form an image, or characters, or video, etc. for a user to watch. And the display device 1 may also receive user operations and partial instructions. The display device 1 generally has a display area and a non-display area, and the display area is generally an area where characters, pictures, videos, and the like are displayed. The non-display area is usually disposed at the periphery of the display area, and the non-display area is usually opaque to shield the traces in the display device 1. Alternatively, the display device 1 may not include the non-display area, and thus may be provided in a full-screen structure. Further alternatively, when the display device 1 does not include the non-display area and forms a full screen, the distance sensor, the ambient light sensor, the front camera, and the like may be disposed in the accommodating space formed by the display device 1 and the housing 22 and located in the display area of the display device 150. In addition, the Display device 1 provided in the present application may be, but not limited to, a Liquid Crystal Display (LCD) device or an Organic Light-emitting diode (OLED) device. Optionally, the display device 1 provided by the present application is a flexible display device.

The display device 1 generally includes a bending structure 20, and the bending structure 20 provided herein mainly plays a role of supporting the flexible display module 10 and bending the flexible display module 10. The supporting of the flexible display module 10 mainly means to fix and support the flexible display module 10 on the bending structure 20. The bending of the flexible display module 10 mainly means that the bending structure 20 can be bent, and since the flexible display module 10 is fixedly supported on the bending structure 20, the bending of the bending structure 20 can further drive the flexible display module 10 to bend, and finally the display device 1 is bent. Alternatively, the bending structure 20 may be bent away from the flexible display module 10, or the bending structure 20 may be bent toward the flexible display module 10. Referring to fig. 2, fig. 2 is a schematic view of the display device after being bent according to the embodiment of the present disclosure. As shown in fig. 2, the bending structure 20 is bent in a direction away from the flexible display module 10 to indicate, so that the flexible display module 10 is disposed on two opposite sides of the bent display device 1. Therefore, the area of the flexible display module 10 on one side of the display device 1 can be reduced, and the user can see the image displayed by the flexible display module 10 on each side of the display device 1, so that the operability of the user and the portability of the electronic equipment 2 are improved.

Please refer to fig. 3, fig. 3 is a schematic diagram of a bending structure according to an embodiment of the present disclosure. The bending structure 20 includes, but is not limited to, a rotating shaft portion 21 and a housing 22 connected to the rotating shaft portion 21, and the rotating shaft portion 21 is mainly used for bending and driving the housing 22 to rotate, so as to finally bend the bending structure 20. The rotating shaft portion 21 is disposed corresponding to the bending portion 11 of the flexible display module 10, and when the rotating shaft portion 21 is bent, the bending portion 11 disposed correspondingly is also bent. Therefore, the bending of the bending structure 20 can further drive the flexible display module 10 to bend. Alternatively, an orthographic projection of the bent portion 11 on the bent structure 20 coincides with the rotation axis portion 21 or covers the rotation axis portion 21. The position of the rotating shaft portion 21 is set according to the position of the bent portion 11. The rotating shaft 21 is located at the middle of the bending structure 20 for illustration. As shown in fig. 3, the rotating shaft portion 21 is located in the middle of the bending structure 20, the housing 22 includes a first housing 221 and a second housing 222, the first housing 221 is located on one side of the rotating shaft portion 21, and the second housing is located on the other side of the rotating shaft portion 21. Of course, in other embodiments, the rotating shaft portion 21 may be disposed at other positions of the bending structure 20.

Referring to fig. 3 again, the rotating shaft portion 21 includes a plurality of rotating shafts 211 arranged at intervals. The distance of the gap between two adjacent rotating shafts 211 gradually increases from the direction close to the flexible display module 10 to the direction away from the flexible display module 10. This is because when the bending structure 20 is bent, the bending angle in the direction close to the flexible display module 10 is smaller than the bending angle in the direction away from the flexible display module 10. Therefore, when the bending structure 20 is bent in a direction away from the flexible display module 10, the bending effect is further improved. Further alternatively, the sectional shape of the rotation shaft 211 may be an inverted trapezoid. In addition, the number of the rotating shafts 211 and the maximum gap between the adjacent surfaces of two adjacent rotating shafts 211 can be set according to the bending radian of the bending structure 20, the bending angle, and the like. The more the number of the rotating shafts 211 is, the larger the bending surface formed during bending can be, and the finer the bending is, the larger the maximum gap between adjacent surfaces of two adjacent rotating shafts 211 is, the larger the angle at which the bending structure 20 can be bent is, and the smaller the bending radius is.

The flexible display module 10 provided by the present application is disposed on the bending structure 20 as a display surface of the display device 1. In the embodiment of the present application, the flexible display module 10 may be a plane, and of course, in other embodiments of the present application, the flexible display module 10 may also be a curved surface having a certain angle at a portion corresponding to the bending structure 20. As mentioned above, when the flexible display module 10 is to bend for display, the bending structure 20 bends to bend the flexible display module 10.

In the related art, the elastic modulus of the non-bending portion 12 is the same as that of the bending portion 11, and is generally prepared by an integral molding process using a flexible material, so that the elastic modulus of the whole flexible display module 10 is small, the flexible display module 10 is "soft", and the impact resistance and the scratch resistance are poor. In fact, only the bending portion 11 and the non-bending portion 12 need not be bent when the flexible display module 10 is bent, and the non-bending portion 12 does not deform during the bending process. Therefore, the structure in which both the bent portion 11 and the non-bent portion 12 have a low elastic modulus has a problem in that the hardness and the rigidity of the entire flexible display module 10 are reduced by sacrificing the hardness of the non-bent portion 12, resulting in excessive performance utilization. Moreover, when the bending portion 11 is repeatedly bent, molecules of the material inside the flexible display module 10 inevitably generate an internal friction phenomenon due to movement. After the internal friction is accumulated to a certain degree, the flexible display module 10 will show a wrinkle or local bending phenomenon in a macroscopic degree, so that the appearance and bending performance of the flexible display module 10 are reduced, and the service life of the flexible display module is prolonged.

In order to solve the above problem, the display device 1 according to the embodiment of the present invention is configured such that the flexible display module 10 is disposed as the bending portion 11 and the non-bending portion 12, and the elastic modulus of the bending portion 11 is smaller than the elastic modulus of the non-bending portion 12. With the above arrangement, the bending portion 11 with a smaller elastic modulus is used for bending the flexible display module 10, so that the flexible display module 10 is bent as in the related art. The non-bent portion 12 that does not need to be bent can have an increased elastic modulus. Thereby improving the rigidity of the entire flexible display module 10. Therefore, the flexible display module 10 has excellent comprehensive performance, namely, the elastic modulus of the bending part 11 which needs to be bent is reduced, so that the flexible display module has excellent bending performance, and the elastic modulus of the non-bending part 12 which does not need to be bent is larger than that of the bending part 11, so that the hardness and the rigidity of the flexible display module 10 are improved, the impact resistance and the scratch resistance of the flexible display module are improved, and the problem of the excessive performance of the flexible display module 10 is solved. In addition, since only the bent portion 11 has a small elastic modulus, the non-bent portion 12 has a larger elastic modulus than the bent portion 11. Therefore, for the flexible display module 10, the internal friction is only generated in the bending portion 11, so that the range of the internal friction is reduced, the bending and springback performance of the flexible display module 10 is improved, and the degree of the wrinkle phenomenon and the local bending phenomenon generated by the bending portion 11 is effectively reduced. Therefore, different positions in the flexible display module 10 are controlled to have different elastic moduli, so that the flexible display module 10 has excellent comprehensive performance, the degree of the fold phenomenon and the local bending phenomenon generated by the flexible display module 10 is reduced, and the flexible display module has great practicability. A specific implementation manner of making the elastic modulus of the bent portion 11 smaller than that of the non-bent portion 12 will be described in detail later.

In addition, the bent portion 11 and the non-bent portion 12 have various positional relationships. For example, the non-bent portion 12 is located on one side of the bent portion 11; the non-bent portions 12 are located at opposite sides of the bent portion 11; or the bent portion 11 includes a plurality of sub-bent portions 111. The following examples are given.

Referring to fig. 4, fig. 4 is a schematic view of a flexible display module according to a first embodiment of the present disclosure. In the embodiment of the present application, the flexible display module 10 includes a first end 13, a second end 14, and a middle portion 15 connected between the first end 13 and the second end 14, where the bending portion 11 is located at the first end 13 or the second end 14. The first end 13 and the second end 14 mentioned in the present application refer to two opposite ends of the flexible display module 10, namely, the first end 13 and the second end 14, and the middle portion 15 refers to a portion of the flexible display module 10 except for the first end 13 and the second end 14, namely, the middle portion 15. In the embodiment of the present application, the bent portion 11 is located at the first end 13 or the second end 14. In this case, the non-bent portion 12 is located on one side of the bent portion 11. Specifically, as shown in fig. 4, the present application is illustrated with the bent portion 11 located at the first end 13. When the bent portion 11 is located at the first end 13, the non-bent portion 12 is located at the second end 14 and the middle portion 15. When the bent portion 11 is located at the second end 14, the non-bent portion 12 is located at the first end 13 and the middle portion 15. When the bending portion 11 is located at the first end 13 or the second end 14, the bending portion 11 can be bent, and the bending portion 11 can reduce the area of the flexible display module 10 on one side of the display device 1 after bending, and can also support the display device 1 on a place such as a desktop, a ground, and the like, so as to change the placement direction of the display device 1. For example, in the related art, the display device 1 is usually horizontally placed on a desktop, but the present application provides the display device 1 such that the display device 1 is placed at an angle with respect to the desktop, and even the display device 1 is vertically placed on the desktop.

Please refer to fig. 5, fig. 5 is a schematic view of a flexible display module according to a second embodiment of the present application. The flexible display module 10 according to the second embodiment of the present application has substantially the same structure as the flexible display module 10 according to the first embodiment of the present application, except that the bent portion 11 is located at the middle portion 15 in the embodiment of the present application. In the present application, the bent portion 11 is disposed at the intermediate portion 15, and the non-bent portions 12 are disposed at opposite sides of the bent portion 11. When the bending portion 11 is bent, the area of the flexible display module 10 on one side of the display device 1 can be further reduced.

Please refer to fig. 6, fig. 6 is a schematic diagram of a flexible display module according to a third embodiment of the present application. The flexible display module 10 according to the third embodiment of the present application has substantially the same structure as the flexible display module 10 according to the first embodiment of the present application, except that in the embodiment of the present application, the first end 13 and the second end 14 are symmetrical with respect to the bending portion 11. In this embodiment, the bending portion 11 is disposed in the middle of the flexible display module 10, that is, the bending portion 11 is disposed in the center of the flexible display module 10, so that the first end 13 and the second end 14 are symmetrically disposed about the bending portion 11. This application locates kink 11 the middle part of flexible display module assembly 10 not only can further reduce the area of the flexible display module assembly 10 of display device 1 one side, still can make the flexible display module assembly 10 symmetry setting of display device 1 both sides, makes display device 1's outward appearance more beautify, promotes display device 1's maneuverability and object-for-play nature.

Please refer to fig. 7 and 8 together, fig. 7 is a schematic view illustrating a flexible display module according to a fourth embodiment of the present application; fig. 8 is a sectional view taken along the line a-a in fig. 7. The flexible display module 10 according to the fourth embodiment of the present application has substantially the same structure as the flexible display module 10 according to the first embodiment of the present application, except that in the embodiment of the present application, the number of the non-bending portions 12 is multiple, the bending portion 11 includes a plurality of sub-bending portions 111 disposed at intervals, and the sub-bending portions 111 are disposed between two adjacent non-bending portions 12. Every sub-kink 111 all can make flexible display module assembly 10 buckle, and consequently the setting of a plurality of sub-kinks 111 can make flexible display module assembly 10 buckle many times, not only can further reduce the area of the flexible display module assembly 10 of display device 1 one side, still can improve user's visual experience through the angle of buckling of control sub-kink 111. As shown in fig. 7, the bending portion 11 includes two sub-bending portions 111. The two sub-bending portions 111 are disposed at two opposite sides of the flexible display module 10 at an interval, and the non-bending portion 12 is disposed at two opposite sides of the sub-bending portion 111. As shown in fig. 8, when the sub-bending portion 111 bends a certain angle towards the direction close to the flexible display module 10, the flexible display module 10 can become the curved flexible display module 10, the visual effect of the curved flexible display module 10 can be brought to the user, and the visual experience of the user is greatly improved.

Referring to fig. 9, fig. 9 is a schematic view of a flexible display module according to a fifth embodiment of the present application. The flexible display module 10 provided in the fifth embodiment of the present application has substantially the same structure as the flexible display module 10 provided in the third embodiment of the present application, except that in the embodiment of the present application, a transition portion 16 is further disposed between the bending portion 11 and the non-bending portion 12, and an elastic modulus of the transition portion 16 is greater than an elastic modulus of the bending portion 11 and less than an elastic modulus of the non-bending portion 12. As can be seen from the above, the flexible display module 10 is designed into the bending portion 11 and the non-bending portion 12, and the bending portion 11 improves the bending performance of the display device 1, and the non-bending portion 12 improves the impact resistance and the scratch resistance of the display device 1. However, an abrupt change in elastic modulus exists at the boundary between the bent portion 11 and the non-bent portion 12. Therefore, the present application provides the transition portion 16 between the bent portion 11 and the non-bent portion 12, and the elastic modulus of the transition portion 16 is greater than the elastic modulus of the bent portion 11 and less than the elastic modulus of the non-bent portion 12. The transition portion 16 functions as a buffer area in the flexible display module 10, and the elastic modulus of the transition portion 16 is between the elastic modulus of the bending portion 11 and the elastic modulus of the non-bending portion 12, so as to alleviate the problem that the flexible display module 10 is easy to break.

Alternatively, in the present embodiment, the modulus of elasticity of the transition portion 16 gradually increases from the bent portion 11 to the non-bent portion 12. This application with the elastic modulus of transition portion 16 follow kink portion 11 to the direction of non-kink portion 12 increases gradually, can further alleviate the sudden change between the elastic modulus of kink 11 and the elastic modulus of non-kink portion 12, makes elastic modulus transition more gently, further alleviates the easy cracked problem of flexible display module 10, improves display device 1's performance.

Alternatively, in the embodiment of the present application, the elastic modulus of the bent portion 11 is 5 GPa to 10GPa, and the elastic modulus of the non-bent portion 12 is 50GPa to 100 GPa. In the present embodiment, the transition portion 16 has an elastic modulus of more than 10GPa and less than 50 GPa. When the elastic modulus of the bent portion 11 is 5-10GPa, the elastic modulus of the bent portion 11 is small, and at this time, the bending performance of the bent portion 11 is good, and the bent portion 11 is easy to bend. When the elastic modulus of the non-bending portion 12 is 50-100GPa, the elastic modulus of the non-bending portion 12 is larger, and the hardness and rigidity of the non-bending portion 12 are better, so as to improve the protection performance of the flexible display module 10, such as the impact resistance and the scratch resistance. Moreover, because the elastic modulus of the bending portion 11 is greatly different from that of the non-bending portion 12, the internal loss is further controlled to be generated only in the bending portion 11, so that the range of the internal loss is reduced, the bending and springback performance of the flexible display module 10 is improved, and the degree of the wrinkle phenomenon and the local bending phenomenon generated in the bending portion 11 is effectively reduced. When the elastic modulus of the transition portion 16 is greater than 10GPa and less than 50 GPa. When the elastic modulus of the bending portion 11 is 5-10GPa, the elastic modulus of the transition portion 16 is between the elastic modulus of the bending portion 11 and the elastic modulus of the non-bending portion 12, and the transition portion 16 can alleviate the problem that the flexible display module 10 is prone to fracture due to abrupt change of the elastic modulus between the bending portion 11 and the non-bending portion 12. Further alternatively, the elastic modulus of the bent portion 11 is 6 to 8GPa and the elastic modulus of the non-bent portion 12 is 60 to 80 GPa. The transition portion 16 has an elastic modulus of greater than 8GPa and less than 60 GPa.

As can be seen from the above, the flexible display module 10 is divided into the bending portion 11 and the non-bending portion 12, and the elastic modulus of the bending portion 11 is smaller than that of the non-bending portion 12. The reason why the flexible display module 10 can be configured as such is the effect of the specific structure inside the flexible display module 10. The present application will now describe the specific structure of the flexible display module 10 in detail.

Please refer to fig. 10, fig. 11, and fig. 12, in which fig. 10 is a schematic structural diagram of a display device according to a first embodiment of the present application; FIG. 11 is a schematic structural diagram of a display device according to a second embodiment of the present application; fig. 12 is a schematic structural diagram of a display device according to a third embodiment of the present application. The structure of the display device 1 provided in the first, second, and third embodiments of the present application is substantially the same as the structure of the display device 1 in fig. 1, except that in the first, second, and third embodiments of the present application, the flexible display module 10 includes a substrate 110, a support layer 120, a display panel 130, an encapsulation layer 140, a polarizer 150, a touch panel 160, and a cover plate 170, which are stacked on the bending structure 20. The flexible display module 10 further includes an optical adhesive layer 180, and the optical adhesive layer 180 includes a first connecting portion 181 and a second connecting portion 182. The first connecting portion 181 is disposed corresponding to the bending portion 11, and the second connecting portion 182 is disposed corresponding to the non-bending portion 12. The elastic modulus of the first connection portion 181 is smaller than the elastic modulus of the second connection portion 182. The optical adhesive layer 180 includes any one or more of a first optical adhesive layer 183, a second optical adhesive layer 184, and a third optical adhesive layer 185. The first optical adhesive layer 183 is disposed between the substrate 110 and the support layer 120. The second optical adhesive layer 184 is disposed between the polarizer 150 and the touch panel 160. The third optical adhesive layer 185 is disposed between the touch panel 160 and the cover plate 170.

In the present embodiment, the substrate 110, the support layer 120, the display panel 130, the encapsulation layer 140, the polarizer 150, the touch panel 160, and the cover plate 170 are conventional structures, and the description thereof is omitted here. And the optical adhesive layer 180 is a transparent optical adhesive layer 180 for connecting two functional layers in the related art, closely connecting the two functional layers together. In the present application, the optical adhesive layer 180 is disposed, and the optical adhesive layer 180 includes a first connection portion 181 and a second connection portion 182, and an elastic modulus of the first connection portion 181 is smaller than an elastic modulus of the second connection portion 182. Since the first connecting portion 181 is disposed corresponding to the bending portion 11 and the second connecting portion 182 is disposed corresponding to the non-bending portion 12, the elastic modulus of the bending portion 11 of the flexible display module 10 is smaller than that of the non-bending portion 12. In addition, the optical adhesive layer 180 includes any one or more of a first optical adhesive layer 183, a second optical adhesive layer 184, and a third optical adhesive layer 185. The elastic modulus of the bent portion 11 can be further made smaller than that of the non-bent portion 12 by the number and the position of the optical adhesive layers 180. Optionally, the optical adhesive layer 180 includes any one of a first optical adhesive layer 183, a second optical adhesive layer 184, and a third optical adhesive layer 185. Or the optical adhesive layer 180 includes any two of the first optical adhesive layer 183, the second optical adhesive layer 184, and the third optical adhesive layer 185. Or the optical adhesive layer 180 includes a first optical adhesive layer 183, a second optical adhesive layer 184, and a third optical adhesive layer 185.

The present application will now be illustrated by way of a few representative examples. As shown in fig. 10, the present embodiment is illustrated in the case where only one optical adhesive layer 180, i.e., the first optical adhesive layer 183 is provided. In this case, the first optical adhesive layer 183 is disposed between the substrate 110 and the supporting layer 120. Since the first optical adhesive layer 183 includes the first connection portion 181 and the second connection portion 182, and the elastic modulus of the first connection portion 181 is smaller than the elastic modulus of the second connection portion 182. Therefore, the elastic modulus of the bending part 11 in the flexible display module 10 is smaller than that of the non-bending part 12. As shown in fig. 11, the present embodiment is illustrated in that the optical adhesive layer 180 includes two layers, i.e., a first optical adhesive layer 183 and a second optical adhesive layer 184. At this time, the first optical adhesive layer 183 is disposed between the substrate 110 and the supporting layer 120, and the second optical adhesive layer 184 is disposed between the polarizer 150 and the touch panel 160. Similarly, the first connecting portion 181 and the second connecting portion 182 are disposed such that the elastic modulus of the bending portion 11 in the flexible display module 10 is smaller than the elastic modulus of the non-bending portion 12. As shown in fig. 12, the optical adhesive layer 180 of the present embodiment includes three layers, i.e., a first optical adhesive layer 183, a second optical adhesive layer 184, and a third optical adhesive layer 185. At this time, the first optical adhesive layer 183 is disposed between the substrate 110 and the supporting layer 120, the second optical adhesive layer 184 is disposed between the polarizer 150 and the touch panel 160, and the third optical adhesive layer 185 is disposed between the touch panel 160 and the cover plate 170. Similarly, the first connecting portion 181 and the second connecting portion 182 are disposed to further make the elastic modulus of the bending portion 11 in the flexible display module 10 smaller than the elastic modulus of the non-bending portion 12. In addition, the present application will be described in detail below with respect to how the optical adhesive layer 180 has the above-mentioned structure and performance.

Referring to fig. 13, fig. 13 is a schematic structural diagram of a display device according to a fourth embodiment of the present application. The structure of the display device 1 according to the fourth embodiment of the present application is substantially the same as the structure of the display device 1 according to the third embodiment of the present application, except that in the embodiment of the present application, a buffer portion 186 is further disposed between the first connection portion 181 and the second connection portion 182, the buffer portion 186 is disposed corresponding to the transition portion 16, and the elastic modulus of the buffer portion 186 is greater than the elastic modulus of the first connection portion 181 and less than the elastic modulus of the second connection portion 182. The buffer portion 186 is disposed such that the flexible display module 10 includes the transition portion 16, and since the elastic modulus of the buffer portion 186 is greater than the elastic modulus of the first connection portion 181 and less than the elastic modulus of the second connection portion 182, the elastic modulus of the transition portion 16 is greater than the elastic modulus of the bending portion 11 and less than the elastic modulus of the non-bending portion 12. As shown in fig. 13, since the first optical adhesive layer 183, the second optical adhesive layer 184, and the third optical adhesive layer 185 of the present embodiment are provided with the buffer portions 186, the elastic modulus of the transition portion 16 is further made larger than the elastic modulus of the bent portion 11 and smaller than the elastic modulus of the non-bent portion 12.

Referring to fig. 14, fig. 14 is a schematic structural diagram of a display device according to a fifth embodiment of the present application. In the embodiment of the present application, the flexible display module 10 includes a substrate 110, a supporting layer 120, and a display screen 130 stacked on the bending structure 20, the supporting layer 120 is used to support the display screen 130, the display screen 130 is disposed on the supporting layer 120, the supporting layer 120 includes a first supporting portion 121 and a second supporting portion 122, the first supporting portion 121 is disposed corresponding to the bending portion 11, the second supporting portion 122 is disposed corresponding to the non-bending portion 12, and an elastic modulus of the first supporting portion 121 is smaller than an elastic modulus of the second supporting portion 122.

The present embodiment not only defines the flexible display module 10 as including the substrate 110, the support layer 120, and the display screen 130. The flexible display module 10 may further include other components, and the specific structure and position of the components are not limited in this application. The support layer 120 fixes and supports the display 130 on the substrate 110 in the related art. In the present application, the support layer 120 is provided, and the support layer 120 includes a first support part 121 and a second support part 122, and an elastic modulus of the first support part 121 is smaller than an elastic modulus of the second support part 122. Since the first supporting portion 121 is disposed corresponding to the bending portion 11 and the second supporting portion 122 is disposed corresponding to the non-bending portion 12, the elastic modulus of the bending portion 11 of the flexible display module 10 is smaller than that of the non-bending portion 12.

Please refer to fig. 15, fig. 15 is a schematic structural diagram of a display device according to a sixth embodiment of the present application. In the embodiment of the present application, the flexible display module 10 includes the range upon range of set up in display screen 130, packaging layer 140 and polaroid 150 on the structure 20 of buckling, packaging layer 140 is used for right the display screen 130 is capsulated, polaroid 150 is located on the packaging layer 140, polaroid 150 is used for right the light of display screen 130 outgoing filters, polaroid 150 includes first partial polarization portion 151 and second partial polarization portion 152, first partial polarization portion 151 corresponds bending portion 11 sets up, second partial polarization portion 152 corresponds non-bending portion 12 sets up, the elastic modulus of first partial polarization portion 151 is less than the elastic modulus of second partial polarization portion 152.

The present embodiment not only defines the flexible display module 10 as including the display 130, the packaging layer 140, and the polarizer 150. The flexible display module 10 may further include other components, and the specific structure and position of the components are not limited in this application. The polarizer 150 is used in the related art to filter the light emitted from the display panel 130. In the present application, the polarizer 150 is disposed, and the polarizer 150 includes a first polarizing portion 151 and a second polarizing portion 152, and an elastic modulus of the first polarizing portion 151 is smaller than an elastic modulus of the second polarizing portion 152. Since the first light deflecting portion 151 is disposed corresponding to the bending portion 11, and the second light deflecting portion 152 is disposed corresponding to the non-bending portion 12, an elastic modulus of the bending portion 11 of the flexible display module 10 is smaller than an elastic modulus of the non-bending portion 12.

Referring to fig. 16, fig. 16 is a schematic structural diagram of a display device according to a seventh embodiment of the present application. In the embodiment of the present application, the flexible display module 10 includes a display screen 130, a touch panel 160, and a cover plate 170, which are stacked on the bending structure 20, the touch panel 160 is disposed on the display screen 130, the cover plate 170 is disposed on the touch panel 160, the touch panel 160 is used for receiving touch information of a user, the touch panel 160 includes a first touch portion 161 and a second touch portion 162, the first touch portion 161 is disposed corresponding to the bending portion 11, the second touch portion 162 is disposed corresponding to the non-bending portion 12, and an elastic modulus of the first touch portion 161 is smaller than an elastic modulus of the second touch portion 162.

The present embodiment is not limited to the flexible display module 10 including the display screen 130, the touch panel 160, and the cover plate 170. The flexible display module 10 may further include other components, and the specific structure and position of the components are not limited in this application. The touch panel 160 is used to receive touch information of a user in the related art. In the present application, the touch panel 160 is provided, and the touch panel 160 includes a first touch portion 161 and a second touch portion 162, and an elastic modulus of the first touch portion 161 is smaller than an elastic modulus of the second touch portion 162. Since the first touch portion 161 is disposed corresponding to the bending portion 11 and the second touch portion 162 is disposed corresponding to the non-bending portion 12, the elastic modulus of the bending portion 11 of the flexible display module 10 is smaller than that of the non-bending portion 12.

Please refer to fig. 17, fig. 17 is a schematic structural diagram of a display device according to an eighth embodiment of the present application. In the embodiment of the present application, the flexible display module 10 includes a display screen 130, a touch panel 160, and a cover plate 170 stacked on the bending structure 20, the touch panel 160 is disposed on the display screen 130, the cover plate 170 is disposed on the touch panel 160, the cover plate 170 includes a first protection portion 171 and a second protection portion 172, the first protection portion 171 corresponds to the bending portion 11, the second protection portion 172 corresponds to the non-bending portion 12, and the elastic modulus of the first protection portion 171 is smaller than the elastic modulus of the second protection portion 172.

The present embodiment is not limited to the flexible display module 10 including the display screen 130, the touch panel 160, and the cover plate 170. The flexible display module 10 may further include other components, and the specific structure and position of the components are not limited in this application. The cover plate 170 is used to protect the flexible display module 10 in the related art. In the present embodiment, a cover plate 170 is provided, and the cover plate 170 includes a first protection portion 171 and a second protection portion 172, and an elastic modulus of the first protection portion 171 is smaller than an elastic modulus of the second protection portion 172. Since the first protection portion 171 is disposed corresponding to the bending portion 11 and the second protection portion 172 is disposed corresponding to the non-bending portion 12, the elastic modulus of the bending portion 11 of the flexible display module 10 is smaller than that of the non-bending portion 12.

The above is a detailed structure of the display device 1 of the present application, and according to the embodiment of the present application, a method for manufacturing the display device 1 is also provided. This method can be used to manufacture the display device 1 of the above-described embodiment. Of course, the display device 1 may be manufactured by using other manufacturing methods, which is not limited in the present application. The display device 1 and the method for manufacturing the display device 1 according to the embodiment of the present application may be used in combination with or independently from each other, which does not affect the essence of the present application.

Referring to fig. 18, fig. 18 is a process flow diagram of a method for manufacturing a display device according to an embodiment of the present disclosure. The embodiment of the application provides a preparation method of a display device 1, and the preparation method comprises S100 and S200. Wherein, the details of S100 and S200 are as follows.

S100, providing the bending structure 20. And

s200, forming a flexible display module 10 on the bending structure 20, wherein the flexible display module 10 includes a bending portion 11 and a non-bending portion 12, and an elastic modulus of the bending portion 11 is smaller than an elastic modulus of the non-bending portion 12.

The manufacturing method of the display device 1 provided by the embodiment of the application is simple in manufacturing process and low in cost, and the flexible display module 10 including the bending portion 11 and the non-bending portion 12 is manufactured, and the elastic modulus of the bending portion 11 is smaller than that of the non-bending portion 12. The flexible display module 10 can effectively improve the hardness, reduce the range of internal friction, increase the bending and springback performance, and effectively reduce the degree of the wrinkle phenomenon and the local bending phenomenon generated by the bending part 11.

In addition, please refer to fig. 19, fig. 19 is a schematic structural diagram of the display device during the manufacturing process. In the embodiment of the present disclosure, the flexible display module 10 includes a substrate 110, a support layer 120, a display 130, a packaging layer 140, a polarizer 150, a touch panel 160, a cover plate 170, and an optical adhesive layer 180 formed on the bending structure 20, where the optical adhesive layer 180 includes a first portion 187 and a second portion 188, the first portion 187 is disposed corresponding to the bending portion 11, the second portion 188 is disposed corresponding to the non-bending portion 12, the second portion 188 forms a second connection portion 182 by using a curing method, the first portion 187 forms a first connection portion 181, and an elastic modulus of the first connection portion 181 is smaller than an elastic modulus of the second connection portion 182; the optical adhesive layer 180 includes one or more layers of a first optical adhesive layer 183, a second optical adhesive layer 184, and a third optical adhesive layer 185, wherein the first optical adhesive layer 183 is disposed between the substrate 110 and the support layer 120, the second optical adhesive layer 184 is disposed between the polarizer 150 and the touch panel 160, and the third optical adhesive layer 185 is disposed between the touch panel 160 and the cover plate 170. In this embodiment, the optical adhesive layer 180 includes a first optical adhesive layer 183, a second optical adhesive layer 184, and a third optical adhesive layer 185.

The above description has said that, the present application may be implemented by disposing the optical adhesive layer 180 such that the optical adhesive layer 180 includes the first connecting portion 181 and the second connecting portion 182, and the elastic modulus of the first connecting portion 181 is smaller than the elastic modulus of the second connecting portion 182. Since the first connecting portion 181 is disposed corresponding to the bending portion 11 and the second connecting portion 182 is disposed corresponding to the non-bending portion 12, the elastic modulus of the bending portion 11 of the flexible display module 10 is smaller than that of the non-bending portion 12. In a specific manufacturing process, the first portion 187 and the second portion 188 may be formed between the substrate 110 and the support layer 120, between the polarizer 150 and the touch panel 160, and between the touch panel 160 and the cover plate 170, and then the second portion 188 is cured by a curing method to form the second connection portion 182, so that the elastic modulus of the second connection portion 182 is greater than that of the first connection portion 181, and finally the elastic modulus of the corresponding non-bending portion 12 is greater than that of the bending portion 11. Optionally, the material of the optical cement layer 180 provided by the present application may be Optical Cement (OCA). Optionally, in the embodiments of the present application, the curing method includes, but is not limited to, any one or more of an ultraviolet light curing method, a thermal curing method, and an electron beam curing method. The curing method mentioned above in the present application may be any one or more of an ultraviolet curing method, a thermal curing method, and an electron beam curing method. For example, when the ultraviolet curing method is used, the elastic modulus of the second connection portion 182 may be controlled by controlling the intensity and the irradiation time of the ultraviolet light. When the heat curing method is employed, the elastic modulus of the second connection portion 182 can be controlled by controlling the temperature and time of heating. When the electron beam curing method is employed, the elastic modulus of the second connection part 182 may be controlled by controlling the energy and time of the electron beam. Optionally, when the ultraviolet curing method is adopted, the wavelength of the ultraviolet light is 320-400 nm.

In addition, in the present embodiment, a transition portion 16 is further provided between the bent portion 11 and the non-bent portion 12, and an elastic modulus of the transition portion 16 is greater than an elastic modulus of the bent portion 11 and less than an elastic modulus of the non-bent portion 12; a third portion 189 is further disposed between the first portion 187 and the second portion 188, the third portion 189 is disposed corresponding to the transition portion 16, and the third portion 189 is formed into a buffer portion 186 by a curing method, such that an elastic modulus of the buffer portion 186 is greater than an elastic modulus of the first connection portion 181 and less than an elastic modulus of the second connection portion 182.

Alternatively, the present application may use a curing method to form the third portion 189 into the buffer portion 186, and the elastic modulus of the buffer portion 186 gradually increases from the first connection portion 181 to the second connection portion 182. Through the arrangement of the buffer portion 186, the elastic modulus of the transition portion 16 in the flexible display module 10 can be gradually increased from the bending portion 11 to the non-bending portion 12, so as to further alleviate the sudden change between the elastic modulus of the bending portion 11 and the elastic modulus of the non-bending portion 12, so that the elastic modulus can be more smoothly transited, thereby solving the problem that the flexible display module 10 is easy to break, and improving the performance of the display device 1.

In addition, the embodiment of the present application is illustrated by controlling the heating temperature when preparing the buffer portion 186. The present application may heat the second portion 188 by a heating device, but the third portion 189 is not directly heated, but the temperature of the second portion 188 is controlled to be conducted to the third portion 189, thereby indirectly heating the third portion 189. Therefore, since heat is continuously dissipated during the transmission, the heat of the third portion 189 far from the second portion 188 is smaller than the heat of the third portion 189 near the second portion 188, and the heat of the third portion 189 is gradually increased from the first portion 187 to the second portion 188. Therefore, when the third portion 189 forms the buffer portion 186, the elastic modulus of the buffer portion 186 gradually increases from the first connection portion 181 to the second connection portion 182, and finally the elastic modulus of the transition portion 16 gradually increases from the bent portion 11 to the non-bent portion 12, so as to solve the problem that the flexible display module 10 is easy to break and improve the performance of the display device 1.

As mentioned above, referring to fig. 19 again, the present application can further include a buffer portion 186 disposed in the optical adhesive layer 180, so that a transition portion 16 is disposed between the bending portion 11 and the non-bending portion 12, and an elastic modulus of the transition portion 16 is greater than an elastic modulus of the bending portion 11 and less than an elastic modulus of the non-bending portion 12. In a specific manufacturing process, a third portion 189 may be further disposed between the first portion 187 and the second portion 188, and then the buffer portion 186 may be formed by a curing method such that the elastic modulus of the buffer portion 186 is greater than the elastic modulus of the first connecting portion 181 and less than the elastic modulus of the second connecting portion 182, thereby achieving the object of the present application. Alternatively, the present application may form the buffer layer using any one or more of an ultraviolet curing method, a thermal curing method, and an electron beam curing method. Further alternatively, in the present embodiment, the elastic modulus of the buffer portion 186 is made larger than the elastic modulus of the first connection portion 181 and smaller than the elastic modulus of the second connection portion 182 by controlling any one or more of the irradiation time of the ultraviolet light, the heating temperature, the heating time, and the irradiation time of the electron beam. The following description will be made by using several typical examples. When the control of the time of the ultraviolet irradiation is adopted, the time of the ultraviolet irradiation of the third section 189 may be made shorter than the time of the ultraviolet irradiation of the second section 188. In this way, the elastic modulus of the buffer portion 186 is greater than the elastic modulus of the first connection portion 181 and less than the elastic modulus of the second connection portion 182. When the temperature of the control heating is adopted, the temperature of the heating of the third portion 189 may be made smaller than the temperature of the heating of the second portion 188. In this way, the elastic modulus of the buffer portion 186 is greater than the elastic modulus of the first connection portion 181 and less than the elastic modulus of the second connection portion 182.

Referring to fig. 20, fig. 20 is a schematic view of an electronic device according to an embodiment of the disclosure. The embodiment of the application provides an electronic device 2, the electronic device 2 includes a housing 3, and a main board 4 and a display device 1 which are arranged in the housing 3, the main board 4 is electrically connected with the display device 1, and the display device 1 includes the display device 1 provided by the embodiment of the application.

The present application provides an electronic device 2. The electronic device 2 provided by the present application includes, but is not limited to, a mobile terminal such as a mobile phone, a tablet Computer, a notebook Computer, a palmtop Computer, a Personal Computer (PC), a Personal Digital Assistant (PDA), a Portable Media Player (PMP), a navigation device, a wearable device, a smart band, a pedometer, and a fixed terminal such as a digital TV, a desktop Computer, and the like.

The electronic device 2 provided by the embodiment of the present application, by using the display device 1 provided by the embodiment of the present application, can effectively improve the hardness of the electronic device 2, reduce the range of internal friction, increase the performance of bending and rebounding, and effectively reduce the degree of the wrinkle phenomenon and the local bending phenomenon generated by the flexible display module 10.

The foregoing detailed description has provided for the embodiments of the present application, and the principles and embodiments of the present application have been presented herein for purposes of illustration and description only and to facilitate understanding of the methods and their core concepts; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

The display device is characterized by comprising a bending structure and a flexible display module arranged on the bending structure, wherein the bending structure can be bent and drive the flexible display module to be bent, the flexible display module comprises a bending part and a non-bending part, and the elastic modulus of the bending part is smaller than that of the non-bending part.
The display device according to claim 1, wherein the flexible display module comprises a first end, a second end and a middle portion connected between the first end and the second end, the bending portion is located in the middle portion.
The display device according to claim 2, wherein the first end and the second end are symmetrical about the bent portion.
The display device according to claim 2, wherein the number of the non-bending portions is plural, the bending portion comprises a plurality of sub-bending portions arranged at intervals, and the sub-bending portions are arranged between two adjacent non-bending portions.
The display device according to claim 1, wherein a transition portion is further disposed between the bending portion and the non-bending portion, and an elastic modulus of the transition portion is greater than an elastic modulus of the bending portion and less than an elastic modulus of the non-bending portion.
The display device according to claim 5, wherein the elastic modulus of the transition portion gradually increases from the bent portion to the non-bent portion.
The display device according to claim 1, wherein the elastic modulus of the bent portion is 5-10GPa, and the elastic modulus of the non-bent portion is 50-100 GPa.
The display device according to claim 5, wherein the transition portion has an elastic modulus of more than 10GPa and less than 50 GPa.
The display device according to claim 5, wherein the flexible display module comprises a substrate, a support layer, a display screen, a packaging layer, a polarizer, a touch panel, and a cover plate stacked on the bending structure, and further comprises an optical adhesive layer, the optical adhesive layer comprises a first connecting portion and a second connecting portion, the first connecting portion is disposed corresponding to the bending portion, the second connecting portion is disposed corresponding to the non-bending portion, and an elastic modulus of the first connecting portion is smaller than an elastic modulus of the second connecting portion; the optical adhesive layer comprises any one or more of a first optical adhesive layer, a second optical adhesive layer and a third optical adhesive layer, the first optical adhesive layer is arranged between the substrate and the supporting layer, the second optical adhesive layer is arranged between the polaroid and the touch panel, and the third optical adhesive layer is arranged between the touch panel and the cover plate.
The display device according to claim 9, wherein a buffer portion is further provided between the first connection portion and the second connection portion, the buffer portion is provided corresponding to the transition portion, and an elastic modulus of the buffer portion is greater than an elastic modulus of the first connection portion and less than an elastic modulus of the second connection portion.
The display device according to claim 1, wherein the flexible display module includes a substrate, a supporting layer, and a display screen stacked on the bending structure, the supporting layer is used to support the display screen, the display screen is disposed on the supporting layer, the supporting layer includes a first supporting portion and a second supporting portion, the first supporting portion is disposed corresponding to the bending portion, the second supporting portion is disposed corresponding to the non-bending portion, and an elastic modulus of the first supporting portion is smaller than an elastic modulus of the second supporting portion.
The display device according to claim 1, wherein the flexible display module comprises a display screen, an encapsulation layer, and a polarizer, the display screen, the encapsulation layer, the polarizer, and the polarizer are stacked on the bending structure, the polarizer is disposed on the encapsulation layer, the polarizer is configured to filter light emitted from the display screen, the polarizer comprises a first polarizing portion and a second polarizing portion, the first polarizing portion is disposed corresponding to the bending portion, the second polarizing portion is disposed corresponding to the non-bending portion, and an elastic modulus of the first polarizing portion is smaller than an elastic modulus of the second polarizing portion.
The display device according to claim 1, wherein the flexible display module comprises a display screen, a touch panel and a cover plate, the display screen, the touch panel and the cover plate are stacked on the bending structure, the touch panel is disposed on the display screen, the cover plate is disposed on the touch panel, the touch panel is configured to receive touch information of a user, the touch panel comprises a first touch portion and a second touch portion, the first touch portion is disposed corresponding to the bending portion, the second touch portion is disposed corresponding to the non-bending portion, and an elastic modulus of the first touch portion is smaller than an elastic modulus of the second touch portion.
The display device according to claim 1, wherein the flexible display module comprises a display screen, a touch panel, and a cover plate stacked on the bending structure, the touch panel is disposed on the display screen, the cover plate is disposed on the touch panel, the cover plate comprises a first protection portion and a second protection portion, the first protection portion is disposed corresponding to the bending portion, the second protection portion is disposed corresponding to the non-bending portion, and an elastic modulus of the first protection portion is smaller than an elastic modulus of the second protection portion.
A method of manufacturing a display device, the method comprising:

providing a bending structure; and

the flexible display module is formed on the bending structure and comprises a bending part and a non-bending part, and the elastic modulus of the bending part is smaller than that of the non-bending part.
The method according to claim 15, wherein the flexible display module comprises a substrate, a support layer, a display screen, a packaging layer, a polarizer, a touch panel, a cover plate, and an optical adhesive layer formed on the bending structure, the optical adhesive layer comprises a first portion and a second portion, the first portion is disposed corresponding to the bending portion, the second portion is disposed corresponding to the non-bending portion, the second portion forms a second connection portion by a curing method, the first portion forms a first connection portion, and an elastic modulus of the first connection portion is smaller than an elastic modulus of the second connection portion; the optical adhesive layer comprises any one or more of a first optical adhesive layer, a second optical adhesive layer and a third optical adhesive layer, the first optical adhesive layer is arranged between the substrate and the supporting layer, the second optical adhesive layer is arranged between the polaroid and the touch panel, and the third optical adhesive layer is arranged between the touch panel and the cover plate.
The method of claim 16, wherein the curing method includes any one or more of an ultraviolet light curing method, a thermal curing method, and an electron beam curing method.
The manufacturing method according to claim 17, wherein a transition portion is further provided between the bent portion and the non-bent portion, and an elastic modulus of the transition portion is greater than an elastic modulus of the bent portion and less than an elastic modulus of the non-bent portion; and a third part is arranged between the first part and the second part and corresponds to the transition part, a buffer part is formed by the third part by adopting a curing method, and the elastic modulus of the buffer part is larger than that of the first connecting part and smaller than that of the second connecting part.
The method according to claim 18, wherein the elastic modulus of the buffer portion is made larger than the elastic modulus of the first connection portion and smaller than the elastic modulus of the second connection portion by controlling any one or more of an irradiation time of ultraviolet light, a temperature of heating, a time of heating, and a time of electron beam irradiation.
An electronic device, comprising a housing, and a main board and a display device disposed in the housing, wherein the main board is electrically connected to the display device, and the display device comprises the display device according to any one of claims 1 to 14.