Display screen, method for manufacturing display screen, and display device

Abstract

The application discloses a display screen, a preparation method of the display screen and a display device. The display screen comprises a middle frame structure and a display module. The middle frame structure comprises a bottom plate and a side plate. The side plate is arranged on one side of the bottom plate and is arranged around the circumference of the bottom plate. The bottom plate and the side plate form an accommodating groove. The display module is arranged in the accommodating groove. The display module comprises a buffer layer, a screen body and a cover plate arranged in sequence in the direction away from the bottom plate. The cover plate covers at least part of the opening of the accommodating groove. The material of the cover plate comprises a light-transmitting material. The orthographic projection of the screen body on the bottom plate is located in the orthographic projection of the cover plate on the bottom plate. In the direction parallel to the bottom plate, at least one side of the buffer layer is provided with a hollow part. The orthographic projection of the hollow part on the bottom plate is located in the orthographic projection of the screen body on the bottom plate. The hollow part comprises a first hollow subpart and a second hollow subpart arranged along the circumference of the buffer layer. The width of the first hollow subpart is greater than the width of the second hollow subpart.

Description

Technical Field

[0001] This application belongs to the field of display technology, and in particular relates to a display screen, a method for manufacturing the display screen, and a display device. Background Technology

[0002] Organic light-emitting diode (OLED) displays and flat panel displays based on light-emitting diode (LED) technologies are widely used in various consumer electronics products such as mobile phones, televisions, laptops, and desktop computers due to their advantages such as high image quality, energy saving, thin body, and wide application range, becoming the mainstream display device. However, the performance of current OLED display products still needs improvement. Summary of the Invention

[0003] The purpose of this application is to provide a display screen, a method for manufacturing the display screen, and a display device that can improve the performance of the display screen.

[0004] The first aspect of this application provides a display screen, including a mid-frame structure and a display module. The mid-frame structure includes a base plate and a side plate. The side plate is disposed on one side of the base plate and surrounds the base plate circumferentially, forming a receiving groove with the base plate and the side plate. The display module is disposed in the receiving groove and includes a buffer layer, a screen body, and a cover plate arranged sequentially in a direction away from the base plate. The cover plate covers at least a portion of the opening of the receiving groove. The material of the cover plate includes a light-transmitting material. The orthographic projection of the screen body on the base plate is located within the orthographic projection of the cover plate on the base plate. In a direction parallel to the base plate, at least one side of the buffer layer is provided with a cutout portion. The orthographic projection of the cutout portion on the base plate is located within the orthographic projection of the screen body on the base plate. The cutout portion includes a first cutout sub-part and a second cutout sub-part arranged circumferentially along the buffer layer. The width of the first cutout sub-part is greater than the width of the second cutout sub-part.

[0005] In some embodiments, the screen body includes a display area and a border area, and the orthographic projection of the cutout portion on the base plate overlaps with the orthographic projection of the border area on the base plate.

[0006] Preferably, the orthographic projection of the cutout portion onto the base plate is located within the orthographic projection of the frame area onto the base plate;

[0007] Preferably, the border area surrounds the display area;

[0008] Preferably, the screen body has a dam structure in the frame area, the dam structure includes a first blocking part, and the orthographic projection of the first blocking part on the base plate is located within the orthographic projection of the first hollow part on the base plate;

[0009] Preferably, the dam structure further includes a second blocking part, the first blocking part and the second blocking part are arranged circumferentially along the display area, and the orthographic projection of the second blocking part on the base plate overlaps with the orthographic projection of the buffer layer on the base plate.

[0010] In some embodiments, the cutout portion is provided around the buffer layer;

[0011] Preferably, the display screen includes multiple corner areas, and the first hollowed-out sub-part is located in the corner area;

[0012] Preferably, there are multiple first hollow sub-parts, and each first hollow sub-part and each corner area are set one-to-one;

[0013] Preferably, the display screen further includes multiple flat areas, and a flat area is provided between any two adjacent corner areas in the circumferential direction of the display screen, and the second hollow sub-part is located in the flat area;

[0014] Preferably, there are multiple second hollow sub-parts, and each second hollow sub-part is arranged one-to-one in each straight area.

[0015] In some embodiments, in the circumferential direction of the display screen, the width of the first cutout portion gradually decreases from the center of the first cutout portion towards both ends;

[0016] Preferably, the width L1 of the first hollowed-out sub-part satisfies: 0.2mm≤L1≤0.4mm.

[0017] In some embodiments, the screen and the side panels are arranged at intervals in a direction parallel to the base plate.

[0018] Preferably, at least a portion of the cover plate is spaced apart from the side plates in a direction parallel to the base plate.

[0019] In some embodiments, the buffer layer includes a foam layer and a first adhesive layer disposed between the foam layer and the screen body, the first adhesive layer bonding the foam layer and the screen body.

[0020] In some embodiments, the display screen further includes a second adhesive layer disposed between the screen body and the cover plate, and bonding the screen body and the cover plate together.

[0021] Preferably, the second adhesive layer is a single, continuous layer.

[0022] Preferably, the orthographic projection of the second adhesive layer on the base plate overlaps with the orthographic projection of the screen body on the base plate;

[0023] Preferably, the display screen further includes a third adhesive layer, which is disposed between the base plate and the buffer layer and bonds the base plate and the buffer layer.

[0024] Preferably, the third adhesive layer is a single, continuous layer.

[0025] A second aspect of this application provides a method for manufacturing a display screen, used to manufacture the display screen described in any of the above-mentioned embodiments, the method comprising:

[0026] A middle frame structure is formed, which includes a bottom plate and a side plate. The side plate is set on one side of the bottom plate and surrounds the bottom plate around its circumference. The bottom plate and the side plate together form a receiving groove.

[0027] A display module is formed, comprising a buffer layer, a screen, and a cover plate arranged sequentially. The cover plate is made of a light-transmitting material. At least one side of the buffer layer has a cutout portion in a direction parallel to the screen. In a plane perpendicular to the thickness direction of the screen, the orthographic projection of the screen is located within the orthographic projection of the cover plate, and the orthographic projection of the cutout portion is located within the orthographic projection of the screen. The cutout portion includes a first cutout sub-part and a second cutout sub-part arranged circumferentially along the buffer layer. The width of the first cutout sub-part is greater than the width of the second cutout sub-part.

[0028] The display module is transferred into the receiving slot, and a buffer layer is placed between the base plate and the screen.

[0029] In some embodiments, the step of forming a display module includes:

[0030] Move the cover plate to one side of the screen and connect the cover plate and the screen;

[0031] The buffer layer is moved to the other side of the screen, and the screen and the buffer layer are connected.

[0032] Preferably, before the step of transferring the display module into the receiving slot, the method further includes:

[0033] A third adhesive layer is formed within the receiving groove, and the third adhesive layer is located on one side of the base plate;

[0034] In the step of transferring the display module into the receiving slot, the third adhesive layer bonds the base plate and the buffer layer.

[0035] A third aspect of this application provides a display device including the aforementioned display screen.

[0036] This application provides a display screen, a method for manufacturing the display screen, and a display device. The display screen includes a mid-frame structure and a display module. The mid-frame structure includes a base plate and a side plate. The side plate is disposed on one side of the base plate and surrounds the base plate circumferentially. The base plate and the side wall enclose a receiving groove. The display module is disposed in the receiving groove and includes a buffer layer, a screen body, and a cover plate arranged sequentially in the direction away from the base plate. The cover plate covers at least a portion of the opening of the receiving groove and can protect the screen body together with the mid-frame structure. In a direction parallel to the base plate, at least one side of the buffer layer is provided with a cutout portion. The orthographic projection of the cutout portion on the base plate is located within the orthographic projection of the screen body on the base plate. The cutout portion includes a first cutout sub-part and a second cutout sub-part arranged circumferentially along the buffer layer. The width of the first cutout sub-part is greater than the width of the second cutout sub-part, so that the edge of the screen body corresponding to the first cutout sub-part is farther away from the side plate than the edge of its corresponding second cutout sub-part. When the display screen is subjected to an external impact, causing the side plate to deform and embed into the side of the cover plate facing the base plate, the edge of the screen body corresponding to the first cutout sub-part has a longer lever arm, which helps to reduce the stress acting on the screen body from this edge, reduce the risk of delamination and other situations caused by stress inside the screen body, and thus help to improve the performance of the display screen. Attached Figure Description

[0037] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 Top view of a display screen provided for some embodiments of this application;

[0039] Figure 2 A bottom view of a display module for a display screen provided in some embodiments of this application;

[0040] Figure 3 for Figure 1 Schematic diagram of the cross section at point AA;

[0041] Figure 4 for Figure 1 Schematic diagram of the cross section at point BB;

[0042] Figure 5 Stress simulation diagrams of the display screen body provided in some embodiments of this application;

[0043] Figure 6 A partial cross-sectional view of a display screen provided for some embodiments of this application;

[0044] Figure 7The display screen provided for other embodiments of this application is in Figure 1 A cross-sectional view at point AA;

[0045] Figure 8 A flowchart illustrating a method for manufacturing a display screen according to some embodiments of this application;

[0046] Figure 9 Another flowchart illustrating a method for manufacturing a display screen provided in some embodiments of this application.

[0047] The attached icons are numbered as follows:

[0048] Display screen 100;

[0049] Mid-frame structure 110; bottom plate 111; side plate 112;

[0050] Display module 120; buffer layer 121; foam layer 1211; first adhesive layer 1212; screen body 122; cover plate 123; hollow part 124; first hollow sub-part 1241; second hollow sub-part 1242; dam structure 125; first blocking part 1251; second adhesive layer 126; third adhesive layer 127;

[0051] Storage slot K1; Display area AA; Border area NA; Corner area D1; Flat area D2. Detailed Implementation

[0052] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of this application by way of example, but should not be used to limit the scope of this application, that is, this application is not limited to the described embodiments.

[0053] In the description of this application, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationships, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. "Vertical" is not vertical in the strict sense, but within the allowable tolerance range. "Parallel" is not parallel in the strict sense, but within the allowable tolerance range.

[0054] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0055] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. It should also be noted in the description of this application that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0056] Please refer to the following: Figures 1 to 5 The first aspect of this application provides a display screen 100, including a mid-frame structure 110 and a display module 120. The mid-frame structure 110 includes a base plate 111 and a side plate 112. The side plate 112 is disposed on one side of the base plate 111 and is arranged around the base plate 111 in the circumferential direction. The base plate 111 and the side plate 112 enclose each other to form a receiving groove K1. The display module 120 is disposed in the receiving groove K1. The display module 120 includes a buffer layer 121, a screen 122 and a cover plate 123 arranged sequentially in the direction away from the base plate 111. The cover plate 123 covers at least a portion of the opening of the receiving groove K1. The material of the cover plate 123 includes a light-transmitting material. The orthographic projection of the screen 122 on the base plate 111 is located within the orthographic projection of the cover plate 123 on the base plate 111. In the direction parallel to the base plate 111, at least one side of the buffer layer 121 is provided with a cutout portion 124. The orthographic projection of the cutout portion 124 on the base plate 111 is located within the orthographic projection of the screen 122 on the base plate 111. The cutout portion 124 includes a first cutout sub-part 1241 and a second cutout sub-part 1242 arranged circumferentially along the buffer layer 121. The width of the first cutout sub-part 1241 is greater than the width of the second cutout sub-part 1242.

[0057] The display module 120 includes a buffer layer 121, a screen body 122, and a cover plate 123 arranged sequentially in a direction away from the base plate 111. The display module 120 is disposed in a receiving groove K1, and its cover plate 123 can cover at least a part of the opening of the receiving groove K1. Therefore, the screen body 122 can be effectively protected by the mid-frame structure 110 and the cover plate 123, which helps to improve the service life and performance of the display screen 100.

[0058] The screen 122 may include a display panel, which may be an organic light-emitting diode (OLED) display panel, or other types of display panels, such as micro light-emitting diode (Micro-LED) or quantum light-emitting diode (QLED) display panels.

[0059] The cover plate 123 is disposed on the light-emitting side of the screen body 122 and includes a light-transmitting material. Therefore, the light emitted by the screen body 122 can be emitted through the cover plate 123 to display the corresponding image.

[0060] A buffer layer 121 is disposed on the backlight side of the screen 122, located between the base plate 111 and the screen 122, and can play a role in stress buffering. In the direction parallel to the base plate 111, at least one side of the buffer layer 121 is provided with a cutout portion 124, which is equivalent to at least one edge of the buffer layer 121 being recessed relative to the screen 122. The cutout portion 124 can provide a certain amount of space for the adhesive layer on the upper and lower sides of the buffer layer 121 to overflow, reducing the risk of the adhesive layer on the upper and lower sides of the buffer layer 121 overflowing and affecting the performance of other surrounding components, thus helping to improve the performance of the display screen 100.

[0061] Understandably, when the display screen 100 is subjected to external impact, especially when the display screen 100 is dropped, the side plate 112 of the mid-frame structure 110 is prone to deformation. The end of the side plate 112 away from the bottom plate 111 is likely to embed into the side of the cover plate 123 facing the bottom plate 111 after deformation. At this time, the bottom plate 111 and the cover plate 123 have a tendency to move away from each other under the action of the side plate 112. The buffer layer 121 can pull the screen body 122 towards the bottom plate 111 under the action of the bottom plate 111. Under the action of the bottom plate 111 and the cover plate 123, the inward edge of the buffer layer 121 relative to the screen body 122 is located at... Figure 5 Point a, as shown, has a large stress concentration. When this stress acts on the screen 122, the screen 122 is prone to delamination due to excessive stress, which affects the performance of the display screen 100.

[0062] Therefore, in this embodiment of the application, the cutout portion 124 includes a first cutout sub-portion 1241 and a second cutout sub-portion 1242. The first cutout sub-portion 1241 and the second cutout sub-portion 1242 are arranged circumferentially along the buffer layer 121. The width L1 of the first cutout sub-portion 1241 is greater than the width L2 of the second cutout sub-portion 1242, such that the inward reduction of the edge of the buffer layer 121 corresponding to the first cutout sub-portion 1241 relative to the screen body 122 is greater than the inward reduction of the edge of the corresponding second cutout sub-portion 1242 relative to the screen body 122 (for example, the inward reduction of the edge of the buffer layer 121 corresponding to the first cutout sub-portion 1241 to...). Figure 5 (As shown at point b), the edge of the buffer layer 121 corresponding to the first hollow sub-part 1241 is further away from the side plate 112 than the edge of its corresponding second hollow sub-part 1242. When the side plate 112 of the middle frame structure 110 deforms and is embedded in the cover plate 123 on the side facing the bottom plate 111, the edge of the buffer layer 121 corresponding to the first hollow sub-part 1241 has a longer lever arm, which helps to reduce the stress acting on the screen body 122 from this edge, reduces the risk of delamination inside the screen body 122 due to stress, and thus helps to improve the performance of the display screen 100.

[0063] Furthermore, in this embodiment, by adjusting the position and width of the first hollowed-out sub-part 1241, at least a portion of the edge of the buffer layer 121 can be offset from the relatively weak or stress-concentrated parts of the screen 122, thereby reducing the risk of delamination or other issues caused by stress within the screen 122. The aforementioned relatively weak or stress-concentrated parts of the screen 122 can be identified during a collision test of the display screen 100, and this embodiment does not impose any limitations on this.

[0064] Please continue reading. Figure 3 and Figure 4 In some embodiments, the screen 122 includes a display area AA and a border area NA, and the orthographic projection of the cutout portion 124 on the base plate 111 overlaps with the orthographic projection of the border area NA on the base plate 111.

[0065] The display area AA refers to the area where the image can be displayed, and it is equipped with sub-pixels. The border area NA, also known as the non-display area AA, refers to the area where the image cannot be displayed. It can be used for wiring, or for placing cameras, bonding terminals, test terminals, etc. The overlap between the orthographic projection of the cutout portion 124 on the base plate 111 and the orthographic projection of the border area NA on the base plate 111 can mean that the orthographic projection of the cutout portion 124 on the base plate 111 is located within the orthographic projection of the border area NA on the base plate 111. Alternatively, it can mean that part of the orthographic projection of the cutout portion 124 on the base plate 111 is located within the orthographic projection of the border area NA on the base plate 111, and another part is located within the orthographic projection of the display area AA on the base plate 111. This embodiment does not impose any limitations on this.

[0066] In these embodiments, the orthographic projection of the cutout portion 124 on the base plate 111 overlaps with the orthographic projection of the bezel area NA on the base plate 111. That is, at least a portion of the cutout portion 124 corresponds to the bezel area NA. This helps reduce the stress acting on the bezel area NA of the screen 122, lowering the risk of delamination or other issues caused by stress. Furthermore, positioning at least a portion of the cutout portion 124 corresponding to the bezel area NA also helps reduce the size of the cutout portion 124 corresponding to the display area AA, or even eliminates the need for the cutout portion 124 at the corresponding position in the display area AA. This helps reduce interference from the cutout portion 124 on the display area AA, thereby improving the display effect of the screen 122.

[0067] Preferably, the orthographic projection of the cutout portion 124 on the base plate 111 is located within the orthographic projection of the border area NA on the base plate 111. Correspondingly, the orthographic projection of the cutout portion 124 on the base plate 111 is located outside the orthographic projection of the display area AA on the base plate 111, which helps to reduce the interference of the cutout portion 124 on the display area AA.

[0068] Preferably, the bezel area NA surrounds the display area AA, which effectively protects the display area AA and thus helps improve the performance of the screen 122. Furthermore, the bezel area NA surrounding the display area AA also provides more wiring space for the screen 122 to accommodate signal lines and other structures.

[0069] Please see Figure 6 Preferably, the screen body 122 has a dam structure 125 in the frame area NA. The dam structure 125 includes a first blocking part 1251. The orthographic projection of the first blocking part 1251 on the base plate 111 is located within the orthographic projection of the first hollow part 1241 on the base plate 111.

[0070] Specifically, the dam structure 125 can be used to block the encapsulation material of the screen 122, reducing the risk of overflow of the encapsulation material and improving the encapsulation reliability of the screen 122. Optionally, the dam structure 125 is disposed in the bezel area NA, which can surround the display area AA, thereby improving the blocking effect on the encapsulation material.

[0071] The dam structure 125 may include a first blocking portion 1251, which may be a portion of the dam structure disposed in a stress concentration area of ​​the display screen, the stress concentration area being determined during a collision test of the display screen 100. For example, the first blocking portion 1251 of the dam structure 125 may be located in a corner area of ​​the screen body 122.

[0072] The orthographic projection of the first blocking part 1251 on the base plate 111 is located within the orthographic projection of the first hollow sub-part 1241 on the base plate 111. That is, the orthographic projection of the first blocking part 1251 of the dam structure 125 on the base plate 111 is misaligned with the orthographic projection of the buffer layer 121 on the base plate 111. The edge of the buffer layer 121 corresponding to the first hollow sub-part 1241 can be offset from the first blocking part 1251 of the dam structure 125 in a direction parallel to the base plate 111. Thus, when the side plate 112 of the middle frame structure 110 deforms and is embedded in the side of the cover plate 123 facing the base plate 111, the stress at the edge of the buffer layer 121 corresponding to the first hollow sub-part 1241 can be avoided from affecting the first blocking part 1251 of the dam structure 125, thereby reducing the risk of stress concentration at the first blocking part 1251 of the dam structure 125, which could lead to delamination inside the screen 122.

[0073] Furthermore, the orthographic projection of the first blocking part 1251 of the dam structure 125 on the base plate 111 is misaligned with the orthographic projection of the buffer layer 121 on the base plate 111. Compared to the overlap of the orthographic projection of the first blocking part 1251 of the dam structure 125 on the base plate 111 and the orthographic projection of the buffer layer 121 on the base plate 111, this can increase the amount of inward shrinkage of the edge of the buffer layer 121 corresponding to the first hollow sub-part 1241 relative to the screen body 122. This makes the edge of the buffer layer 121 corresponding to the first hollow sub-part 1241 further away from the side plate 112 of the middle frame structure 110. When the side plate 112 of the middle frame structure 110 deforms and is embedded in the cover plate 123 facing the base plate 111, the lever arm at the edge of the buffer layer 121 corresponding to the first hollow sub-part 1241 can be extended, reducing the stress at the edge of the buffer layer 121 corresponding to the first hollow sub-part 1241, thereby reducing the impact of this stress on the screen body 122.

[0074] Optionally, there can be multiple dam structures 125. Multiple dam structures 125 can be sequentially arranged in a direction parallel to the base plate 111 and away from the display area AA. Each dam structure 125 can be arranged circumferentially around the display area AA to improve the blocking effect on the encapsulation material of the screen 122. Each dam structure 125 can include a first blocking part 1251. The orthographic projection of the first blocking part 1251 of each dam structure 125 on the base plate 111 can be located within the orthographic projection of the first hollowed-out part 1241 on the base plate 111, thereby helping to further reduce the risk of delamination or other issues caused by stress inside the screen 122.

[0075] Preferably, the dam structure 125 further includes a second blocking part. The first blocking part 1251 and the second blocking part are arranged circumferentially along the display area AA. The orthographic projection of the second blocking part on the base plate 111 overlaps with the orthographic projection of the buffer layer 121 on the base plate 111, thereby helping to increase the stress buffering effect of the buffer layer 121 between the base plate 111 and the screen 122.

[0076] Specifically, the second blocking portion can be a part of the dam structure 125 located in the stress dispersion area of ​​the display screen 100. That is, when the display screen 100 is impacted, the stress in the area of ​​the screen body 122 corresponding to the second blocking portion of the dam structure 125 can be less than the stress in the area of ​​the screen body 122 corresponding to the first blocking portion 1251. The aforementioned stress dispersion area can be obtained during an impact test of the display screen 100. For example, the second blocking portion of the dam structure 125 can be located in a straight area between the two corner areas of the screen body 122.

[0077] The orthographic projection of the second blocking part on the base plate 111 may be located within the orthographic projection of the buffer layer 121 on the base plate 111. Alternatively, a portion of the orthographic projection of the second blocking part on the base plate 111 may be located within the orthographic projection of the buffer layer 121 on the base plate 111, while another portion of the orthographic projection may be located within the orthographic projection of the second hollowed-out sub-part 1242 on the base plate 111.

[0078] Please continue reading. Figure 2 In some embodiments, the cutout portion 124 is disposed around the buffer layer 121. Each edge of the buffer layer 121 is recessed relative to the screen body 122, and the cutout portion 124 can form an overflow space around the buffer layer 121.

[0079] Please continue reading. Figure 1 and Figure 3 Preferably, the display screen 100 includes multiple corner areas D1, and the first hollowed-out sub-part 1241 is located in the corner area D1.

[0080] It is understandable that when the display screen 100 is subjected to external impact, especially when the display screen 100 is dropped, the corner area D1 of the display screen 100 is more prone to stress concentration than other areas. Therefore, the side plate 112 of the middle frame structure 110 in the corner area D1 is more likely to deform and embed into the side of the cover plate 123 facing the bottom plate 111, which makes the edge of the buffer layer 121 in the corner area D1 more prone to stress concentration, which in turn causes the screen body 122 in the corner area D1 to delaminate and even causes other areas of the screen body 122 to delaminate.

[0081] Therefore, in this embodiment of the application, the first hollowed-out sub-part 1241 is disposed in the corner area D1 of the display screen 100, which allows at least a portion of the buffer layer 121 in the corner area D1 of the display screen 100 to have a larger inward amount relative to the buffer layer 121 in other areas. That is, at least a portion of the edge of the buffer layer 121 in the corner area D1 of the display screen 100 is further away from the side plate 112 of the middle frame structure 110. When the side plate 112 of the middle frame structure 110 in the corner area D1 deforms and is embedded in the cover plate 123 on the side facing the bottom plate 111, at least a portion of the edge of the buffer layer 121 in the corner area D1 can have a longer lever arm, thereby reducing the stress on the screen body 122 in the corner area D1 through the edge of the buffer layer 121, and reducing the risk of the screen body 122 in the corner area D1 delaminating.

[0082] It should be noted that when the screen body 122 is provided with a dam structure 125 and the dam structure 125 includes a first blocking part 1251, the first blocking part 1251 can be located in the corner area D1 of the display screen 100. It can be provided in the corner area D1 corresponding to the first hollow sub-part 1241, and offset from the edge of the buffer layer 121 of the corner area D1. This can reduce the risk of delamination inside the screen body 122 caused by stress concentration in the dam structure 125 of the corner area D1.

[0083] In this embodiment, the first hollowed-out sub-part 1241 located in the corner area D1 can mean that all edges of the buffer layer 121 within the corner area D1 are provided with corresponding first hollowed-out sub-parts 1241, or it can mean that a portion of the edges of the buffer layer 121 within the corner area D1 are provided with corresponding first hollowed-out sub-parts 1241, while the remaining edges are not provided with corresponding first hollowed-out sub-parts 1241. This embodiment does not limit this. The number of first hollowed-out sub-parts 1241 in this embodiment can be one or more. When the number of first hollowed-out sub-parts 1241 is one, the first hollowed-out sub-part 1241 can be provided in any one of the multiple corner areas D1. When the number of first hollowed-out sub-parts 1241 is multiple, the multiple first hollowed-out sub-parts 1241 can be respectively provided in multiple corner areas D1.

[0084] Preferably, there are multiple first hollow sub-parts 1241, and each first hollow sub-part 1241 is provided one-to-one with each corner area D1. At least a portion of the edge of the buffer layer 121 of each corner area D1 can have a larger inward amount relative to the buffer layer 121 of other areas, so that at least a portion of the edge of the buffer layer 121 of each corner area D1 is further away from the side plate 112 of the middle frame structure 110. When the side plate 112 of the middle frame structure 110 of one or more corner areas D1 deforms and is embedded in the side of the cover plate 123 facing the bottom plate 111, at least a portion of the edge of the buffer layer 121 of the corresponding corner area D1 can have a longer lever arm, thereby reducing the stress on the screen body 122 through the edge of the buffer layer 121 in the corresponding corner area D1, and reducing the risk of the screen body 122 delaminating.

[0085] Please continue reading. Figure 1 and Figure 4 Preferably, the display screen 100 further includes a plurality of flat areas D2. In the circumferential direction of the display screen 100, a flat area D2 is provided between any two adjacent corner areas D1, and the second hollow sub-part 1242 is located in the flat area D2.

[0086] Specifically, the flat area D2 is set between any two adjacent corner areas D1 in the circumferential direction of the display screen 100. That is to say, in the circumferential direction, a flat area D2 is provided on both sides of any corner area D1.

[0087] When the display screen 100 is subjected to external impact, especially when the display screen 100 is dropped, compared with the corner area D1, the flat area D2 of the display screen 100 is less prone to stress concentration. The side plate 112 of the middle frame structure 110 of the flat area D2 is less prone to deformation and is embedded in the cover plate 123 on the side facing the bottom plate 111, so that the screen body 122 of the flat area D2 is less prone to delamination and other situations.

[0088] Therefore, in this embodiment, the second hollowed-out sub-part 1242 is disposed in the flat area D2. By providing the overflow space for the upper and lower adhesive layers of the buffer layer 121 in the flat area D2 through the second hollowed-out sub-part 1242, the inward shrinkage of the edge of the buffer layer 121 in the flat area D2 relative to the screen body 122 is less than the inward shrinkage of the edge of the buffer layer 121 in the corner area D1 relative to the screen body 122. This increases the area of ​​the buffer layer 121 in the flat area D2 and helps to improve the stress buffering effect of the buffer layer 121 in the flat area D2 between the base plate 111 and the screen body 122.

[0089] Preferably, there are multiple second hollow sub-parts 1242, and each second hollow sub-part 1242 is disposed one-to-one in each flat area D2, thereby increasing the area of ​​the buffer layer 121 in each flat area D2, which helps to improve the stress buffering effect of the buffer layer 121 in each flat area D2 between the base plate 111 and the screen body 122.

[0090] In some embodiments, in the circumferential direction of the display screen 100, the width of the first cutout sub-part 1241 gradually decreases from the center to both ends. In other words, in the circumferential direction of the display screen 100, from the center to both ends of the first cutout sub-part 1241, the inward reduction of the edge of the buffer layer 121 in the corner area D1 gradually decreases. This helps to create a relatively gentle transition between the edge of the buffer layer 121 in the corner area D1 and the edges of the buffer layers 121 in the straight areas D2 on both sides, reducing the risk of a large step forming between the edge of the buffer layer 121 in the corner area D1 and the edges of the buffer layers 121 in the straight areas D2 on both sides, which could affect the screen body 122.

[0091] Preferably, the width L1 of the first hollowed-out sub-part 1241 satisfies: 0.2mm≤L1≤0.4mm.

[0092] As an example, the width of the first hollowed-out sub-part 1241 can be 0.2mm, 0.22mm, 0.25mm, 0.3mm, 0.35mm, 0.37mm, 0.4mm or any other value between any two of the aforementioned values.

[0093] In these embodiments, the width of the first hollow sub-part 1241 is set to be greater than or equal to 0.2 mm and less than or equal to 0.4 mm. On the one hand, the position of the edge of the buffer layer 121 corresponding to the first hollow sub-part 1241 can be adjusted so that the edge of the buffer layer 121 corresponding to the first hollow sub-part 1241 can have a longer lever arm when the side plate 112 deforms and is embedded in the cover plate 123 facing the bottom plate 111. This also makes the edge offset from the relatively weak part or stress concentration part of the screen body 122 (such as the first blocking part 1251 of the dam structure 125), thereby reducing the risk of delamination of the screen body 122. On the other hand, it can also avoid the first hollow sub-part 1241 being too wide, which would affect the stress buffering effect of the buffer layer 121 between the bottom plate 111 and the screen body 122.

[0094] Please see Figure 3 and Figure 4 In some embodiments, the screen 122 and the side plate 112 are arranged at intervals in a direction parallel to the base plate 111.

[0095] The spacing between the screen 122 and the side panel 112 can be flexibly set according to the actual situation, and this embodiment does not impose any restrictions on this.

[0096] In these embodiments, the screen 122 is arranged at a distance from the side plate 112 in a direction parallel to the base plate 111. When the display screen 100 is subjected to external impact, the space between the two can buffer the stress on the side plate 112, avoiding the risk of the stress on the side plate 112 being directly transmitted to the screen 122 and causing damage to the screen 122.

[0097] Please see Figure 3 and Figure 4 Preferably, at least a portion of the cover plate 123 is arranged at intervals from the side plate 112 in a direction parallel to the bottom plate 111.

[0098] Specifically, the spacing between at least a portion of the cover plate 123 and the side plate 112 can refer to the at least a portion of the edges of the cover plate 123 in its circumferential direction being spaced apart from the side plate 112. The distance between the cover plate 123 and the side plate 112 can be flexibly set according to actual conditions, and this embodiment does not impose any restrictions on this.

[0099] In these embodiments, at least a portion of the cover plate 123 is arranged at intervals from the side plate 112 in a direction parallel to the base plate 111, which helps to reduce the risk of stress on the side plate 112 being directly transmitted to the cover plate 123.

[0100] It should be noted that when at least a portion of the cover plate 123 is spaced apart from the side plate 112, the gap between the corresponding edge of the cover plate 123 and the side plate 112 is hollowed out without any other material filling, which helps to reduce the spacing between the cover plate 123 and the side plate 112 and reduce the bezel area NA of the display screen 100.

[0101] Optionally, the side surface of the cover plate 123 facing away from the base plate 111 is provided to protrude relative to the side plate 112, so as to avoid the display area AA of the display device being recessed relative to the bezel area NA after the display device is formed, thus affecting its usability.

[0102] It is understood that when at least a portion of the cover plate 123 is spaced apart from the side plate 112 in a direction parallel to the bottom plate 111, and the surface of the cover plate 123 facing away from the bottom plate 111 protrudes relative to the side plate 112, if the display screen 100 is subjected to external impact, especially if the display screen 100 is dropped, the side plate 112 of the frame structure 110 is easily deformed by force. The end of the side plate 112 away from the bottom plate 111 is easily embedded in the side of the cover plate 123 facing the bottom plate 111 after deformation, which makes the buffer layer 121 have a large stress concentration at the inward edge relative to the screen body 122. After this stress is applied to the screen body 122, the interior of the screen body 122 is prone to delamination due to excessive stress, which affects the performance of the display screen 100.

[0103] Therefore, in this embodiment, the cutout portion 124 includes a first cutout sub-portion 1241 and a second cutout sub-portion 1242. The first cutout sub-portion 1241 and the second cutout sub-portion 1242 are arranged circumferentially along the buffer layer 121. The width of the first cutout sub-portion 1241 is greater than the width of the second cutout sub-portion 1242, such that the inward reduction of the edge of the buffer layer 121 corresponding to the first cutout sub-portion 1241 relative to the screen body 122 is greater than the inward reduction of the edge of the corresponding second cutout sub-portion 1242 relative to the screen body 122. Since the edge of the first hollow sub-section 1241 is further away from the side plate 112 than the edge of its corresponding second hollow sub-section 1242, when the side plate 112 of the middle frame structure 110 deforms and is embedded in the cover plate 123 on the side facing the bottom plate 111, the buffer layer 121 has a longer lever arm at the edge of the first hollow sub-section 1241, which helps to reduce the stress acting on the screen body 122 from that edge, reduces the risk of delamination and other issues caused by stress inside the screen body 122, and thus helps to improve the performance of the display screen 100.

[0104] Furthermore, in this embodiment, by adjusting the position and width of the first hollowed-out sub-part 1241, at least a portion of the edge of the buffer layer 121 that is recessed relative to the screen body 122 can be offset from the relatively weak parts or stress concentration parts of the screen body 122 (such as the first blocking part 1251 of the dam structure 125), thereby reducing the risk of delamination or other issues caused by stress inside the screen body 122.

[0105] Please continue reading. Figure 3 and Figure 4 In some embodiments, the buffer layer 121 includes a foam layer 1211 and a first adhesive layer 1212 disposed between the foam layer 1211 and the screen 122, wherein the first adhesive layer 1212 bonds the foam layer 1211 and the screen 122.

[0106] The foam layer 1211 can effectively buffer stress between the base plate 111 and the screen 122, reducing the risk of damage to the screen 122. The first adhesive layer 1212 bonds the foam layer 1211 and the screen 122, which can improve the stability of the foam layer 1211 and the screen 122, reduce the assembly difficulty of the buffer layer 121 and the screen 122, and help improve the production efficiency of the display screen 100.

[0107] like Figure 4 and Figure 5As shown, in some optional embodiments, the first cutout sub-part 1241 and the second cutout sub-part 1242 both include a first part and a second part. The first part and the foam layer 1211 are arranged in a direction parallel to the base plate 111, and the second part and the first adhesive layer 1212 are arranged in a direction parallel to the base plate 111. That is, the first cutout sub-part 1241 and the second cutout sub-part 1242 are both formed by the first adhesive layer 1212 and the foam layer 1211 being recessed relative to the screen body 122. The first adhesive layer 1212 can be arranged as a whole layer on the side of the foam layer 1211 away from the base plate 111. The orthographic projection of the first adhesive layer 1212 on the base plate 111 overlaps with the orthographic projection of the foam layer 1211 on the base plate 111.

[0108] In some alternative embodiments, the first hollowed-out sub-part 1241 may be as follows: Figure 7 As shown, the first adhesive layer 1212 is arranged in a direction parallel to the base plate 111. The second hollow sub-part 1242 may include a first part and a second part. The first part is arranged in a direction parallel to the base plate 111 with the foam layer 1211, and the second part is arranged in a direction parallel to the base plate 111 with the first adhesive layer 1212. That is, the first hollow sub-part 1241 is formed by the first adhesive layer 1212 being recessed relative to the screen body 122, and the second hollow sub-part 1242 is formed by the first adhesive layer 1212 and the foam layer 1211 being recessed relative to the screen body 122. At this time, at least a portion of the first adhesive layer 1212 is also in a recessed state relative to the foam layer 1211. The hollow part 124 may also include a third hollow sub-part. The third hollow sub-part is arranged in a direction parallel to the base plate 111 with the foam layer 1211, and the third hollow sub-part is located on one side of the first hollow sub-part 1241 along the thickness direction of the base plate 111.

[0109] It is known that the first adhesive layer 1212 is located between the foam layer 1211 and the screen body 122. The first adhesive layer 1212 is in direct contact with the screen body 122. Therefore, when the side plate 112 of the middle frame structure 110 deforms and is embedded in the cover plate 123 on the side facing the bottom plate 111, the stress of the buffer layer 121 is finally transferred to the screen body 122 by the first adhesive layer 1212. The stress is most concentrated at the edge of the first adhesive layer 1212 that is recessed relative to the screen body 122.

[0110] Therefore, by setting the first adhesive layer 1212 to form the first hollow sub-part 1241 inward, this embodiment can make the edge of the first adhesive layer 1212 corresponding to the first hollow sub-part 1241 have a longer lever arm when the side plate 112 of the middle frame structure 110 deforms and is embedded in the cover plate 123 facing the bottom plate 111. It can also help to separate the edge of the first adhesive layer 1212 corresponding to the first hollow sub-part 1241 from the relatively weak parts or stress concentration parts in the screen body 122 (such as the first blocking part 1251 of the dam structure 125), thereby helping to reduce the risk of delamination inside the screen body 122. Furthermore, compared to the first hollow sub-part 1241 being formed by the inward shrinkage of the first adhesive layer 1212 and the foam layer 1211, this embodiment forms the first hollow sub-part 1241 by the inward shrinkage of the first adhesive layer 1212 alone, which also helps to increase the area of ​​the foam layer 1211 and improve the stress buffering effect of the foam layer 1211 between the screen body 122 and the base plate 111.

[0111] Please continue reading. Figure 3 and Figure 4 In some embodiments, the display screen 100 further includes a second adhesive layer 126, which is disposed between the screen body 122 and the cover plate 123 and bonds the screen body 122 and the cover plate 123 together. Using the second adhesive layer 126 to bond the screen body 122 and the cover plate 123 can improve the stability of the screen body 122 and the cover plate 123, reduce the assembly difficulty of the screen body 122 and the cover plate 123, and help improve the production efficiency of the display screen 100.

[0112] Preferably, the second adhesive layer 126 is provided as a single layer, which helps to increase the contact area between the second adhesive layer 126 and the screen body 122 and the cover plate 123 respectively, thereby improving the reliability and stability of the bonding of the screen body 122 and the cover plate 123 by the second adhesive layer 126.

[0113] It should be clarified that when the second adhesive layer 126 is provided as a single layer, its orthographic projection on the base plate 111 can overlap with the orthographic projection of the screen 122 on the base plate 111. Alternatively, the second adhesive layer 126 can also protrude relative to the screen 122 in a direction parallel to the base plate 111, that is, the orthographic projection of the screen 122 on the base plate 111 can also be located within the orthographic projection of the second adhesive layer 126 on the base plate 111.

[0114] Preferably, the orthographic projection of the second adhesive layer 126 on the base plate 111 overlaps with the orthographic projection of the screen body 122 on the base plate 111. This can improve the reliability and stability of the second adhesive layer 126 in bonding the screen body 122 and the cover plate 123, while reducing the risk of the second adhesive layer 126 overflowing relative to the screen body 122 and affecting the performance of the display screen 100.

[0115] Please continue reading. Figure 3 and Figure 4Preferably, the display screen 100 further includes a third adhesive layer 127, which is disposed between the base plate 111 and the buffer layer 121 and bonds the base plate 111 and the buffer layer 121.

[0116] Specifically, the third adhesive layer 127 is disposed between the base plate 111 and the foam layer 1211 of the buffer layer 121. By using the third adhesive layer 127 to bond the base plate 111 and the foam layer 1211 of the buffer layer 121, the stability of the base plate 111 and the buffer layer 121 can be improved, while reducing the assembly difficulty of the base plate 111 and the buffer layer 121, which helps to improve the production efficiency of the display screen 100.

[0117] Preferably, the third adhesive layer 127 is provided as a single layer, which helps to increase the contact area between the third adhesive layer 127 and the base plate 111 and the buffer layer 121 respectively, thereby improving the reliability and stability of the bonding between the base plate 111 and the buffer layer 121 by the third adhesive layer 127.

[0118] It should be noted that when the third adhesive layer 127 is provided as a single layer, its orthographic projection on the base plate 111 can overlap with the orthographic projection of the buffer layer 121 on the base plate 111. Alternatively, the third adhesive layer 127 can also protrude relative to the buffer layer 121 in a direction parallel to the base plate 111, in which case the orthographic projection of the buffer layer 121 on the base plate 111 is located within the orthographic projection of the third adhesive layer 127 on the base plate 111.

[0119] Optionally, the orthographic projection of the third adhesive layer 127 on the base plate 111 overlaps with the orthographic projection of the buffer layer 121 on the base plate 111. This can improve the reliability and stability of the bonding of the third adhesive layer 127 to the base plate 111 and the buffer layer 121, while reducing the risk of the third adhesive layer 127 overflowing relative to the buffer layer 121 and affecting the performance of the display screen 100.

[0120] Please see Figure 8 The second aspect of this application provides a method for manufacturing a display screen 100, used to manufacture the display screen 100 according to any of the above-mentioned methods, the method comprising:

[0121] S10. A middle frame structure 110 is formed. The middle frame structure 110 includes a bottom plate 111 and a side plate 112. The side plate 112 is disposed on one side of the bottom plate 111 and is arranged around the bottom plate 111 in the circumferential direction. The bottom plate 111 and the side plate 112 enclose and form a receiving groove K1.

[0122] S20. A display module 120 is formed. The display module 120 includes a buffer layer 121, a screen body 122, and a cover plate 123 arranged sequentially. The material of the cover plate 123 includes a light-transmitting material. In the direction parallel to the screen body 122, at least one side of the buffer layer 121 is provided with a cutout portion 124. In a plane perpendicular to the thickness direction of the screen body 122, the orthographic projection of the screen body 122 is located within the orthographic projection of the cover plate 123, and the orthographic projection of the cutout portion 124 is located within the orthographic projection of the screen body 122. The cutout portion 124 includes a first cutout sub-part 1241 and a second cutout sub-part 1242 arranged circumferentially along the buffer layer 121. The width of the first cutout sub-part 1241 is greater than the width of the second cutout sub-part 1242.

[0123] S30, the display module 120 is transferred into the receiving slot K1, and the buffer layer 121 is disposed between the base plate 111 and the screen body 122.

[0124] In these embodiments, the mid-frame structure 110 and the display module 120 can be manufactured simultaneously. The completed display module 120 is then transferred into the receiving slot K1 of the mid-frame structure 110, allowing the side of the buffer layer 121 facing away from the screen body 122 to connect with the base plate 111, which helps improve the production efficiency of the display screen 100. Furthermore, in the display module 120, the buffer layer 121 has a cutout portion 124 on at least one side in a direction parallel to the base plate 111. The cutout portion 124 includes a first cutout sub-portion 1241 and a second cutout sub-portion 1242. The first cutout sub-portion 1241 and the second cutout sub-portion 1242 are arranged circumferentially along the buffer layer 121. The width of the first cutout sub-portion 1241 is greater than the width of the second cutout sub-portion 1242. Therefore, the inward indentation of the edge of the buffer layer 121 corresponding to the first cutout sub-portion 1241 relative to the screen body 122 is greater than the inward indentation of the edge of its corresponding second cutout sub-portion 1242 relative to the screen body 122. The inward reduction of the screen body 122 means that the edge of the buffer layer 121 corresponding to the first hollow sub-part 1241 is farther away from the side plate 112 than the edge of its corresponding second hollow sub-part 1242. When the side plate 112 of the middle frame structure 110 deforms and is embedded in the cover plate 123 on the side facing the bottom plate 111, the edge of the buffer layer 121 corresponding to the first hollow sub-part 1241 has a longer lever arm, which helps to reduce the stress acting on the screen body 122 from this edge, reduces the risk of delamination inside the screen body 122 due to stress, and thus helps to improve the performance of the display screen 100.

[0125] It should be noted that in the above embodiments, the middle frame structure 110 may be prepared before or after the display module 120, and this embodiment does not impose any restrictions on this.

[0126] Please see Figure 9 In some embodiments, the step of forming the display module 120 includes:

[0127] S21. Move the cover plate 123 to one side of the screen body 122 and connect the cover plate 123 and the screen body 122.

[0128] S22. Transfer the buffer layer 121 to the other side of the screen 122 and connect the screen 122 and the buffer layer 121.

[0129] In these embodiments, the screen 122, cover plate 123 and buffer layer 121 are prepared in advance, and then the cover plate 123 and buffer layer 121 are transferred to be connected to the screen 122 to form a display module 120, which helps to improve the production efficiency of the display module 120.

[0130] Preferably, before the step of transferring the display module 120 into the receiving slot K1, the method further includes:

[0131] A third adhesive layer 127 is formed in the receiving groove K1, and the third adhesive layer 127 is located on one side of the base plate 111.

[0132] In the step of transferring the display module 120 into the receiving groove K1, the third adhesive layer 127 bonds the base plate 111 and the buffer layer 121.

[0133] In these embodiments, the use of the third adhesive layer 127 to bond the foam layer 1211 of the base plate 111 and the buffer layer 121 can improve the stability of the base plate 111 and the buffer layer 121, reduce the assembly difficulty of the base plate 111 and the buffer layer 121, and help improve the production efficiency of the display screen 100.

[0134] A third aspect of this application provides a display device including the aforementioned display screen 100. Since this display device employs all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon here.

[0135] The display device can be any device with display function, such as mobile devices such as mobile phones, tablets, laptops, handheld computers, in-vehicle electronic devices, wearable devices, ultra-mobile personal computers (UMPCs), netbooks, or personal digital assistants (PDAs), as well as non-mobile devices such as personal computers (PCs), televisions (TVs), ATMs, or self-service machines.

[0136] While the embodiments disclosed in this application are as described above, the content is merely for the purpose of facilitating understanding of this application and is not intended to limit the invention. Any person skilled in the art to which this application pertains may make any modifications and changes in form and detail of the implementation without departing from the spirit and scope disclosed in this application; however, the scope of protection of this application shall still be determined by the scope defined in the appended claims.

[0137] The above description is merely a specific embodiment of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, substitutions for other connection methods described above can be made by referring to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application.

Claims

1. A display screen, characterized in that, include: The middle frame structure includes a bottom plate and a side plate. The side plate is disposed on one side of the bottom plate and surrounds the bottom plate circumferentially. The bottom plate and the side plate together form a receiving groove. A display module is disposed in the receiving slot. The display module includes a buffer layer, a screen body, and a cover plate arranged sequentially in a direction away from the base plate. The cover plate covers at least a portion of the opening of the receiving slot. The material of the cover plate includes a light-transmitting material. The orthographic projection of the screen body on the base plate is located within the orthographic projection of the cover plate on the base plate. In a direction parallel to the base plate, at least one side of the buffer layer is provided with a hollow portion. The orthographic projection of the hollow portion on the base plate is located within the orthographic projection of the screen body on the base plate. The hollow portion includes a first hollow sub-part and a second hollow sub-part arranged circumferentially along the buffer layer. The width of the first hollow sub-part is greater than the width of the second hollow sub-part.

2. The display screen according to claim 1, characterized in that, The screen includes a display area and a border area, and the orthographic projection of the cutout portion on the base plate overlaps with the orthographic projection of the border area on the base plate. Preferably, the orthographic projection of the hollow portion on the base plate is located within the orthographic projection of the frame area on the base plate; Preferably, the border area surrounds the display area; Preferably, the screen body has a dam structure in the frame area, the dam structure includes a first blocking part, and the orthographic projection of the first blocking part on the base plate is located within the orthographic projection of the first hollow sub-part on the base plate; Preferably, the dam structure further includes a second blocking part, the first blocking part and the second blocking part are arranged circumferentially along the display area, and the orthographic projection of the second blocking part on the base plate overlaps with the orthographic projection of the buffer layer on the base plate.

3. The display screen according to claim 1, characterized in that, The hollowed-out portion is arranged around the buffer layer; Preferably, the display screen includes multiple corner areas, and the first hollowed-out sub-part is located in the corner area; Preferably, there are multiple first hollow sub-parts, and each first hollow sub-part and each corner area are provided one-to-one; Preferably, the display screen further includes multiple flat areas, and in the circumferential direction of the display screen, a flat area is provided between any two adjacent corner areas, and the second hollowed-out sub-part is located in the flat area; Preferably, there are multiple second hollow sub-parts, and each second hollow sub-part is arranged one-to-one in each of the flat areas.

4. The display screen according to claim 3, characterized in that, In the circumferential direction of the display screen, the width of the first hollow sub-part gradually decreases from the center to both ends. Preferably, the width L1 of the first hollowed-out sub-part satisfies: 0.2mm≤L1≤0.4mm.

5. The display screen according to any one of claims 1 to 4, characterized in that, The screen and the side plate are arranged at intervals in a direction parallel to the base plate; Preferably, at least a portion of the cover plate is spaced apart from the side plate in a direction parallel to the base plate.

6. The display screen according to any one of claims 1 to 4, characterized in that, The buffer layer includes a foam layer and a first adhesive layer disposed between the foam layer and the screen body, wherein the first adhesive layer bonds the foam layer and the screen body.

7. The display screen according to any one of claims 1 to 4, characterized in that, The display screen further includes a second adhesive layer, which is disposed between the screen body and the cover plate and bonds the screen body and the cover plate together. Preferably, the second adhesive layer is a single, continuous layer. Preferably, the orthographic projection of the second adhesive layer on the base plate overlaps with the orthographic projection of the screen body on the base plate; Preferably, the display screen further includes a third adhesive layer, which is disposed between the base plate and the buffer layer and bonds the base plate and the buffer layer. Preferably, the third adhesive layer is a single, continuous layer.

8. A method for manufacturing a display screen, characterized in that, The method for preparing the display screen according to any one of claims 1 to 7 includes: A middle frame structure is formed, the middle frame structure includes a bottom plate and a side plate, the side plate is disposed on one side of the bottom plate and surrounds the bottom plate circumferentially, the bottom plate and the side plate together form a receiving groove; A display module is formed, comprising a buffer layer, a screen body, and a cover plate arranged sequentially. The cover plate is made of a light-transmitting material. In a direction parallel to the screen body, at least one side of the buffer layer is provided with a cutout portion. In a plane perpendicular to the thickness direction of the screen body, the orthographic projection of the screen body is located within the orthographic projection of the cover plate, and the orthographic projection of the cutout portion is located within the orthographic projection of the screen body. The cutout portion includes a first cutout sub-part and a second cutout sub-part arranged circumferentially along the buffer layer, wherein the width of the first cutout sub-part is greater than the width of the second cutout sub-part. The display module is transferred into the receiving slot, and the buffer layer is disposed between the base plate and the screen.

9. The preparation method according to claim 8, characterized in that, The step of forming the display module includes: The cover plate is moved to one side of the screen body, and the cover plate and the screen body are connected; The buffer layer is transferred to the other side of the screen, and the screen and the buffer layer are connected. Preferably, before the step of transferring the display module into the receiving slot, the method further includes: A third adhesive layer is formed within the receiving groove, and the third adhesive layer is located on one side of the base plate; In the step of transferring the display module into the receiving slot, the third adhesive layer bonds the base plate and the buffer layer.

10. A display device, characterized in that, Includes the display screen as described in any one of claims 1 to 7.

Images