Display panel and preparation method thereof, display module and display device

Abstract

The invention provides a display panel and a preparation method thereof, a display module and a display device, the display panel comprises a display screen body, a binding screen body and a connecting part, and the binding screen body is located on the backlight side of the display screen body; the display screen body comprises a first cut surface, the binding screen body comprises a second cut surface, the first cut surface intersects with the plane where the display screen body is located, and the second cut surface intersects with the plane where the binding screen body is located; and the connecting part is attached to the first cut surface and the second cut surface, and is electrically connected with the display screen body and the binding screen body. According to the display panel, the display screen body and the binding screen body are formed through cutting, the display screen body and the binding screen body are electrically connected through the connecting part, and a bending part can be omitted, so that the width of the lower frame of the display panel is compressed to the limit, a narrower frame is achieved, and the full-screen display effect is improved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel and a preparation method thereof, a display module and a display device. Background Art

[0002] Organic Light Emitting Diode (OLED) and flat panel display devices based on technologies such as Light Emitting Diode (LED) have been widely used in various consumer electronic products such as mobile phones, televisions, laptops, desktop computers, etc. due to their advantages such as high image quality, power saving, thin body and wide application range, becoming the mainstream in display devices.

[0003] However, the process performance of current OLED display products needs to be improved. Summary of the invention

[0004] In view of this, the purpose of the present application is to provide a display panel and a preparation method thereof, a display module and a display device, which are conducive to achieving a narrower frame and improving the display effect.

[0005] Based on the above purpose, the present application provides a display panel, which includes a display screen body, a binding screen body and a connecting portion, wherein the binding screen body is located on the backlight side of the display screen body;

[0006] The display screen includes a first cut surface, and the binding screen includes a second cut surface, the first cut surface intersects with the plane where the display screen is located, and the second cut surface intersects with the plane where the binding screen is located;

[0007] The connecting portion is attached to the first cut surface and the second cut surface, and electrically connects the display screen body and the binding screen body.

[0008] In one embodiment, the display screen includes a first signal line, and the first signal line includes a first connecting surface located at the first cut surface;

[0009] The binding screen body includes a second signal line, and the second signal line includes a second connecting surface located at the second cutting surface;

[0010] The connecting portion includes a connecting wire, and the first connecting surface and the second connecting surface are electrically connected through the connecting wire;

[0011] Preferably, the first cut surface and the second cut surface are both perpendicular to the plane where the display screen is located;

[0012] Preferably, the first cut surface and the second cut surface are arranged coplanarly;

[0013] Preferably, the extending direction of the connecting wire is perpendicular to the plane where the display screen is located;

[0014] Preferably, the plane where the display screen is located is parallel to the plane where the binding screen is located;

[0015] Preferably, the connecting wires are formed by depositing metal materials.

[0016] In one embodiment, the first signal line includes a first recessed portion, and the first recessed portion is disposed on the first connecting surface;

[0017] The second signal line comprises a second recessed portion, and the second recessed portion is arranged on the second connecting surface;

[0018] The connecting trace includes a first embedded portion and a second embedded portion, the first embedded portion is filled in the first recessed portion, and the second embedded portion is filled in the second recessed portion.

[0019] In one embodiment, the first signal line and the second signal line are connected in a one-to-one correspondence;

[0020] Preferably, the first signal line and the second signal line are formed by cutting the same signal line, and the first connection surface and the second connection surface are formed at the cutting position.

[0021] In one embodiment, the connecting portion further comprises:

[0022] A protective layer, wherein the protective layer is disposed on a side of the connecting wire away from the first signal wire and the second signal wire, and the protective layer covers the connecting wire;

[0023] Preferably, the protective layer is fixedly connected to the display screen body and the binding screen body respectively;

[0024] Preferably, the protective layer comprises a first plane portion, a vertical portion and a second plane portion connected in sequence, the first plane portion is located on a side of the display screen body away from the binding screen body, and the second plane portion is located on a side of the binding screen body away from the display screen body;

[0025] Preferably, the protective layer comprises UV curable glue.

[0026] In one embodiment, the display panel further includes:

[0027] A supporting structure is arranged between the binding screen body and the display screen body.

[0028] Based on the same inventive concept, the present application also provides a method for preparing a display panel, the method comprising:

[0029] A screen body is provided, and the screen body is cut to form a display screen body and a binding screen body, wherein the display screen body forms a first cut surface at the cutting position, and the binding screen body forms a second cut surface at the cutting position; wherein the first cut surface intersects with the plane where the display screen body is located, and the second cut surface intersects with the plane where the binding screen body is located;

[0030] The binding screen is arranged on the backlight side of the display screen;

[0031] A connecting portion is attached to the first cut surface and the second cut surface, and the connecting portion electrically connects the display screen body and the binding screen body.

[0032] In one embodiment, the step of attaching a connecting portion to the first cut surface and the second cut surface, wherein the connecting portion electrically connects the display screen body and the binding screen body comprises:

[0033] Depositing a metal material on the first cut surface and the second cut surface to form a connecting wire, so that the connecting wire electrically connects the display screen body and the binding screen body;

[0034] Preferably, the preparation method further comprises: providing a protective layer on a side of the connecting wire away from the display screen body and the binding screen body, so that the protective layer covers the connecting wire;

[0035] Preferably, the display screen includes a first signal line, the first signal line includes a first connection surface located at the first cut surface; the binding screen includes a second signal line, the second signal line includes a second connection surface located at the second cut surface; the first connection surface and the second connection surface are electrically connected through the connection line;

[0036] Preferably, a first recessed portion is formed on the first connection surface, and a second recessed portion is formed on the second connection surface; the connection trace comprises a first embedded portion matching the first recessed portion and a second embedded portion matching the second recessed portion;

[0037] Preferably, the protective layer is fixedly connected to the display screen body and the binding screen body respectively.

[0038] Based on the same inventive concept, the present application also provides a display module, which includes a display panel as described in any one of the above items.

[0039] Based on the same inventive concept, the present application also provides a display device, which includes the display module as described above.

[0040] Compared with the prior art, the display panel provided in the present application is formed by cutting into a display body and a binding screen body, and electrically connecting the display body and the binding screen body through a connecting part, so that the bending part can be omitted, thereby compressing the width of the lower frame of the display panel to the extreme, achieving a narrower frame, and improving the full-screen display effect; in addition, no stress caused by the bending operation will be generated inside the connecting part, which can avoid the problem of wire breakage caused by bending stress. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the present application or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0042] Figure 1 is a schematic diagram of a related display panel before being bent;

[0043] Figure 2 is a schematic diagram of a cross-sectional structure of a related display module after bending;

[0044] Figure 3 A schematic diagram of a display panel before cutting provided by an embodiment of the present application;

[0045] Figure 4 A schematic diagram of the structure of a display panel provided in another embodiment of the present application;

[0046] Figure 5 A schematic cross-sectional structure diagram of a display panel provided in another embodiment of the present application;

[0047] Figure 6 A partial schematic diagram of an array substrate before cutting provided by another embodiment of the present application;

[0048] Figure 7 A schematic diagram of an end face of an array substrate after cutting provided by another embodiment of the present application;

[0049] Figure 8 A schematic diagram of an end face of an array substrate after cutting provided by another embodiment of the present application;

[0050] Fig. 9 A partial schematic diagram of a layer structure of a display panel provided in another embodiment of the present application;

[0051] Fig.10 A schematic diagram of a display module provided in another embodiment of the present application;

[0052] Fig.11 A schematic flow chart of a method for preparing a display panel provided in another embodiment of the present application.

[0053] Marking Description:

[0054] 100, display panel; 101, display screen body; 1010, first cut surface; 102, bending portion; 103, binding screen body; 1030, second cut surface; 11, first signal line; 110, first connecting surface; 111, first recessed portion; 12, connecting portion; 120, connecting wiring; 121, first embedded portion; 122, second embedded portion; 13, second signal line; 130, second connecting surface; 131, second recessed portion; 124, protective layer; 1241, first plane portion; 1242, vertical portion; 1243, second plane portion; 15, supporting structure; 200, cover plate. DETAILED DESCRIPTION

[0055] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0056] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be the usual meanings understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0057] like Figure 1 and Figure 2As shown, a related display module includes a display panel 100 and a cover plate 200, wherein the display panel 100 includes a display screen 101, a bending portion 102 and a binding screen 103 connected in sequence, and the binding screen 103 is bent to the backlight side of the display screen 101 through the bending portion 102, that is, located on the side of the display screen 101 away from the light output. Among them, the display screen 101 and the binding screen 103 are electrically connected through signal routing, and the signal routing extends from the display screen 101 to the binding screen 103. The bending portion 102 is a part of the non-display area of ​​the display panel 100, specifically located at the lower frame position. Among them, the bending portion 102 is an arc shape with a bending radius of R, and the bending radius R largely determines the width of the lower frame. The width direction of the lower frame refers to the direction from the display screen 101 to the binding screen 103 before bending.

[0058] After long-term research, the inventors found that after the bending radius R reaches a certain value, if it continues to decrease, it will cause excessive stress in the bending area, which may cause material fatigue, breakage or damage to circuit connections during the bending process. Therefore, the display panel in the related art is limited by the bending stress factor and cannot continue to reduce the width of the lower border, making it difficult to meet the demand for narrower border displays of display devices.

[0059] Based on this, the present application provides a display panel and a method for manufacturing the same, a display module and a display device to solve the above problems.

[0060] like Figure 3 , Figure 4 As shown, an embodiment of the present application provides a display panel 100, which includes a display screen 101, a binding screen 103 and a connection portion 12, wherein the binding screen 103 is located on the backlight side of the display screen 101. The display panel 100 includes a first cut surface 1010, and the binding screen 103 includes a second cut surface 1030. The first cut surface 1010 intersects with the plane where the display screen 101 is located, and the second cut surface 1030 intersects with the plane where the binding screen 103 is located. The connection portion 12 is attached to the first cut surface 1010 and the second cut surface 1030, and the connection portion 12 electrically connects the display screen 101 and the binding screen 103.

[0061] The display panel 100 provided in the embodiment of the present application is formed by cutting a display screen body 101 and a binding screen body 103, and the display screen body 101 and the binding screen body 103 are electrically connected through a connecting portion 12, so that the bending portion can be omitted, thereby compressing the width of the lower frame of the display panel 100 to the extreme, achieving a narrower frame, and improving the full-screen display effect; in addition, stress caused by the bending operation will not be generated inside the connecting portion 12, which can avoid the problem of broken wires caused by bending stress.

[0062] like Figure 5As shown, in one embodiment, the display screen 101 includes a first signal line 11, the first signal line 11 includes a first connection surface 110, and the first connection surface 110 is located in the first cut surface 1010. The binding screen 103 includes a second signal line 13, the second signal line 13 includes a second connection surface 130, and the second connection surface 130 is located in the second cut surface 1030. The connecting portion 12 includes a connecting wire 120, and the first connection surface 110 and the second connection surface 130 are electrically connected through the connecting wire 120.

[0063] The display panel 100 provided in the embodiment of the present application electrically connects the first connecting surface 110 and the second connecting surface 130 through the connecting wiring 120, thereby realizing the electrical connection between the second signal line 13 in the binding screen body 103 and the first signal line 11 in the display screen body 101, without the need for bending. No bending stress is generated in the connecting wiring 120, which can avoid the problem of disconnection caused by bending stress, thereby ensuring the stability and continuity of signal transmission, and improving display quality and product reliability.

[0064] Specifically, the display panel 100 includes a non-display area, and the connecting wire 120 and the binding screen body 103 are located in the non-display area, specifically at the position of the lower frame, and no picture is displayed. Among them, the connecting wire 120 is connected between the first connecting surface 110 and the second connecting surface 130, that is, connected between the end surfaces of the first signal line 11 and the second signal line 13, and the signal connection between the display body 101 and the binding screen body 103 can be realized. Compared with the signal wire of the integrated structure under the bending process, the connecting wire 120 of the present application and its connection with the first signal line 11 and the second signal line 13 can avoid the bending stress from affecting the signal transmission, and can also reduce the width of the lower frame to the limit.

[0065] Exemplarily, a light-emitting device and a driving circuit for driving the light-emitting device to emit light are provided in the display screen body 101 of the display panel 100, and the first signal line 11 can be connected to the driving circuit. The binding screen body 103 can be connected to the driving chip or to an external circuit structure (such as a flexible circuit board, etc.) through the second signal line 13, and the first signal line 11 is connected to the second signal line 13 through the connecting line 120 in the connecting part 12 to realize signal transmission.

[0066] Preferably, the first cut surface 1010 and the second cut surface 1030 are perpendicular to the plane where the display screen 101 is located. The first cut surface 1010 and the second cut surface 1030 are cut by the display screen 101 and the binding screen 103, and the cutting direction is perpendicular to the plane where the screen is located.

[0067] Preferably, the first cut surface 1010 and the second cut surface 1030 are arranged on the same plane. Specifically, the first cut surface 1010 and the second cut surface 1030 are located on the same side of the display screen 101 and the binding screen 103, and the first cut surface 1010 and the second cut surface 1030 are aligned and located in the same vertical plane. Preferably, the extension direction of the connecting wire 120, that is, the length direction of the connecting wire 120 is perpendicular to the plane where the display screen 101 is located.

[0068] Among them, the angle between the extension direction of the connecting line 120 and the plane where the display screen 101 is located is 90 degrees. In this case, the width of the lower frame of the display panel 100 can correspond to the width of the lower frame formed when the bending radius R is zero under the bending process, and the connecting line 120 and the connection between it and the first signal line 11 and the second signal line 13 are not restricted by bending stress, so as to reduce the width of the lower frame to the limit and achieve an extremely narrow frame.

[0069] In other embodiments, the first cut surface 1010 and the second cut surface 1030 intersect with the plane where the display screen 101 is located, and the included angle may be an angle other than 90 degrees. Correspondingly, the included angle between the extension direction of the connection line 120 and the plane where the display screen 101 is located may also be other angles, that is, the connection line 120 may be arranged at an angle relative to the plane where the display screen 101 is located. Alternatively, a portion of the connection line 120 is perpendicular to the plane where the display screen 101 is located, and another portion is arranged at an angle relative to the plane where the display screen 101 is located.

[0070] Preferably, the plane where the display screen 101 is located is parallel to the plane where the binding screen 103 is located.

[0071] Preferably, the connection trace 120 is formed by depositing a metal material. On the first cut surface 1010 and the second cut surface 1030, a metal layer is formed by a metal material using a deposition technique to achieve electrical connection between the first signal line 11 and the second signal line 13. The deposition technique can enhance the stability of the connection.

[0072] like Figure 8 and Fig. 9 As shown, in one embodiment, the first signal line 11 includes a first recessed portion 111, which is disposed on the first connection surface 110; the second signal line 13 includes a second recessed portion 131, which is disposed on the second connection surface 130. Correspondingly, the connection line 120 includes a first embedded portion 121 and a second embedded portion 122, the first embedded portion 121 is filled in the first recessed portion 111, and the second embedded portion 122 is filled in the second recessed portion 131.

[0073] Among them, by setting a recessed structure at the connection between the first signal line 11 and the second signal line 13 and the connecting wiring 120 respectively, and utilizing the embedded structure of the connecting wiring 120 to cooperate with the recessed structure, the connection strength between the first signal line 11 and the second signal line 13 and the connecting wiring 120 can be enhanced, thereby further improving the stability and reliability of the signal connection.

[0074] like Figure 6 and Figure 7 As shown, in one embodiment, the first signal lines 11 and the second signal lines 13 are connected in a one-to-one correspondence.

[0075] Preferably, the first signal line 11 and the second signal line 13 are formed by cutting the same signal line, and the first connection surface 110 and the second connection surface 130 are formed at the cutting position.

[0076] Specifically, the same signal line is cut to form the first signal line 11 and the second signal line 13, and the cutting surfaces on both sides of the cutting line form the first connection surface 110 and the second connection surface 130. The cutting line may be perpendicular to the cut signal line, and the cutting method may be laser cutting.

[0077] like Fig. 9 As shown, in one embodiment, the display panel 100 further includes a protective layer 124, which is disposed on a side of the connecting wire 120 away from the first signal line 11 and the second signal line 13, and the protective layer 124 covers the connecting wire 120. Preferably, the protective layer 124 is fixedly connected to the display screen body 101 and the binding screen body 103, respectively. Among them, the protective layer 124 is disposed on a side of the connecting wire 120 away from the first signal line 11 and the second signal line 13, which, on the one hand, can isolate the corrosion of moisture and oxygen, protect the connecting wire 120 and its connection structure, and extend the life of the product; on the other hand, the protective layer 124 is fixedly connected to the display screen body 101 and the binding screen body 103, respectively, which can increase the connection stability of the connecting wire 120.

[0078] Preferably, the protective layer 124 includes a first planar portion 1241, a vertical portion 1242 and a second planar portion 1243 connected in sequence, the first planar portion 1241 is located on a side of the display screen 101 away from the binding screen 103, and the second planar portion 1243 is located on a side of the binding screen 103 away from the display screen 101.

[0079] Preferably, the protective layer 124 includes ultraviolet curing glue (UV glue). Of course, in other embodiments, the protective layer 124 is not limited to UV glue, and can also be heat curing glue, or other types of light curing glue.

[0080] like Figure 5As shown, in one embodiment, the display panel 100 further includes a support structure 15, which is disposed between the binding screen body 103 and the display screen body 101. The support structure 15 can support the display screen body 101 and the binding screen body 103 respectively and fix the relative positions of the display screen body 101 and the binding screen body 103.

[0081] In other embodiments, the supporting structure 15 may be omitted, so that the display screen 101 and the binding screen 103 are directly stacked and placed.

[0082] like Fig.11 As shown, based on the same inventive concept, another embodiment of the present application further provides a method for preparing a display panel. The structure of the prepared display panel 100 can refer to Figure 4 , Figure 5 The method for preparing a display panel includes:

[0083] Step S1, providing a screen body, cutting the screen body to form a display screen body 101 and a binding screen body 103, the display screen body 101 forms a first cut surface 1010 at the cutting position, and the binding screen body 103 forms a second cut surface 1030 at the cutting position; wherein the first cut surface 1010 intersects with the plane where the display screen body 101 is located, and the second cut surface 1030 intersects with the plane where the binding screen body 103 is located.

[0084] Specific as Figure 6 As shown, a complete screen body is cut along a cutting line (dashed line in the figure) to obtain a display screen body 101 and a binding screen body 103, and a first cutting surface 1010 and a second cutting surface 1030 are respectively formed at the cutting position (cutting line).

[0085] Step S2 , disposing the binding screen body 103 on the backlight side of the display screen body 101 .

[0086] Specific as Figure 7 As shown, after cutting, the display screen body 101 and the binding screen body 103 are stacked up and down so that the first cut surface 1010 and the second cut surface 1030 are aligned.

[0087] Step S3 , attaching the connection part 12 to the first cut surface 1010 and the second cut surface 1030 , wherein the connection part 12 electrically connects the display screen body 101 and the binding screen body 103 .

[0088] The present embodiment provides a method for preparing a display panel, which forms a display screen body 101 and a binding screen body 103 by cutting, and then electrically connects the display screen body 101 and the binding screen body 103 through a connecting portion 12, thereby eliminating the bending portion, thereby compressing the width of the lower frame of the display panel 100 to the extreme, achieving a narrower frame, and improving the full-screen display effect; in addition, stress caused by the bending operation will not be generated inside the connecting portion 12, thereby avoiding the problem of wire breakage caused by the bending stress.

[0089] Specifically, Figure 6 As shown, in one embodiment, step S3 includes:

[0090] Step S31 , depositing metal material on the first cut surface 1010 and the second cut surface 1030 to form a connecting wire 120 , so that the connecting wire 120 is electrically connected to the display screen body 101 and the binding screen body 103 .

[0091] Preferably, the preparation method further comprises:

[0092] Step S32 , disposing a protection layer 124 on a side of the connection wire 120 away from the display screen body 101 and the binding screen body 103 , so that the protection layer 124 covers the connection wire 120 .

[0093] Preferably, the display screen 101 includes a first signal line 11, and the first signal line 11 includes a first connection surface 110 located at the first cut surface 1010. The binding screen 103 includes a second signal line 13, and the second signal line 13 includes a second connection surface 130 located at the second cut surface 1030. The first connection surface 110 and the second connection surface 130 are electrically connected through the connection line 120.

[0094] Preferably, a first recessed portion 111 is formed on the first connection surface 110 , and a second recessed portion 131 is formed on the second connection surface 130 ; the connection trace 120 includes a first embedded portion 121 matching the first recessed portion 111 and a second embedded portion 122 matching the second recessed portion 131 .

[0095] Preferably, the protection layer 124 is fixedly connected to the display screen body 101 and the binding screen body 103 respectively.

[0096] Specifically, a metal material is deposited on the first recessed portion 111, the second recessed portion 131 and the remaining portions of the first cut surface 1010 and the second cut surface 1030 to form the connection trace 120. The first embedded portion 121 and the second embedded portion 122 formed by deposition are embedded and matched with the corresponding first recessed portion 111 and the second recessed portion 131, which can enhance the stability of the electrical connection between the first signal line 11, the second signal line 13 and the connection trace 120.

[0097] like Fig.10As shown, based on the same inventive concept, another embodiment of the present application further provides a display module, which includes the display panel 100 in the above embodiment.

[0098] A display module provided in this embodiment has a display panel 100 in which a display screen body 101 and a binding screen body 103 are formed by cutting, and the display screen body 101 and the binding screen body 103 are electrically connected through a connecting portion 12, so that the bending portion can be omitted, thereby compressing the width of the lower frame of the display panel 100 to the extreme, achieving a narrower frame, and improving the full-screen display effect; in addition, stress caused by the bending operation will not be generated inside the connecting portion 12, which can avoid the problem of wire breakage caused by the bending stress.

[0099] like Fig.10 As shown, in one embodiment, the display module further includes a cover plate 200. The cover plate 200 is disposed on the light-emitting side of the display panel 100, and the orthographic projection of the cover plate 200 on the display panel 100 covers the display screen 101 and the connecting portion 12. Exemplarily, the cover plate 200 may be a glass cover plate.

[0100] Based on the same inventive concept, another embodiment of the present application further provides a display device, which includes the display module in the above embodiment. Further, the display device includes a mobile phone, VR equipment, computer, television, car display equipment, etc.

[0101] A display device provided in this embodiment has a display panel 100 in which a display screen body 101 and a binding screen body 103 are formed by cutting, and the display screen body 101 and the binding screen body 103 are electrically connected through a connecting portion 12, so that the bending portion can be omitted, thereby compressing the width of the lower frame of the display panel 100 to the extreme, achieving a narrower frame, and improving the full-screen display effect; in addition, no stress caused by the bending operation will be generated inside the connecting portion 12, which can avoid the problem of broken wires caused by the bending stress.

[0102] Although the present application has been described in conjunction with specific embodiments thereof, many alternatives, modifications and variations of these embodiments will be apparent to those skilled in the art in light of the foregoing description.

[0103] It should be noted that the above describes some embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the above embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0104] The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of the present application.

Claims

1. A display panel, characterized in that: It includes a display screen body, a binding screen body and a connecting part, wherein the binding screen body is located on the backlight side of the display screen body; The display screen includes a first cut surface, and the binding screen includes a second cut surface, the first cut surface intersects with the plane where the display screen is located, and the second cut surface intersects with the plane where the binding screen is located; The connecting portion is attached to the first cut surface and the second cut surface, and electrically connects the display screen body and the binding screen body.

2. The display panel according to claim 1, characterized in that: The display screen includes a first signal line, and the first signal line includes a first connecting surface located at the first cutting surface; The binding screen body includes a second signal line, and the second signal line includes a second connecting surface located at the second cutting surface; The connecting portion includes a connecting wire, and the first connecting surface and the second connecting surface are electrically connected through the connecting wire; Preferably, the first cut surface and the second cut surface are both perpendicular to the plane where the display screen is located; Preferably, the first cut surface and the second cut surface are arranged coplanarly; Preferably, the extending direction of the connecting wire is perpendicular to the plane where the display screen is located; Preferably, the plane where the display screen is located is parallel to the plane where the binding screen is located; Preferably, the connecting wires are formed by depositing metal materials.

3. The display panel according to claim 2, characterized in that: The first signal line includes a first recessed portion, and the first recessed portion is disposed on the first connecting surface; The second signal line comprises a second recessed portion, and the second recessed portion is arranged on the second connecting surface; The connecting trace includes a first embedded portion and a second embedded portion, the first embedded portion is filled in the first recessed portion, and the second embedded portion is filled in the second recessed portion.

4. The display panel according to claim 2, characterized in that: The first signal lines and the second signal lines are connected in a one-to-one correspondence; Preferably, the first signal line and the second signal line are formed by cutting the same signal line, and the first connection surface and the second connection surface are formed at the cutting positions.

5. The display panel according to claim 2, characterized in that: The connecting portion further comprises: A protective layer, wherein the protective layer is disposed on a side of the connecting wire away from the first signal wire and the second signal wire, and the protective layer covers the connecting wire; Preferably, the protective layer is fixedly connected to the display screen body and the binding screen body respectively; Preferably, the protective layer comprises a first plane portion, a vertical portion and a second plane portion connected in sequence, the first plane portion is located on a side of the display screen body away from the binding screen body, and the second plane portion is located on a side of the binding screen body away from the display screen body; Preferably, the protective layer comprises UV curable glue.

6. The display panel according to claim 2, characterized in that: The display panel further includes: A supporting structure is arranged between the binding screen body and the display screen body.

7. A method for preparing a display panel, characterized in that: The preparation method comprises: A screen body is provided, and the screen body is cut to form a display screen body and a binding screen body, wherein the display screen body forms a first cut surface at the cutting position, and the binding screen body forms a second cut surface at the cutting position; wherein the first cut surface intersects with the plane where the display screen body is located, and the second cut surface intersects with the plane where the binding screen body is located; The binding screen is arranged on the backlight side of the display screen; A connecting portion is attached to the first cut surface and the second cut surface, and the connecting portion electrically connects the display screen body and the binding screen body.

8. The method for preparing a display panel according to claim 7, characterized in that: The step of attaching a connecting portion to the first cut surface and the second cut surface, wherein the connecting portion electrically connects the display screen body and binds the screen body, comprises: Depositing a metal material on the first cut surface and the second cut surface to form a connecting wire, so that the connecting wire is electrically connected to the display screen body and the binding screen body; Preferably, the preparation method further comprises: providing a protective layer on a side of the connecting wire away from the display screen body and the binding screen body, so that the protective layer covers the connecting wire; Preferably, the display screen includes a first signal line, the first signal line includes a first connection surface located at the first cut surface; the binding screen includes a second signal line, the second signal line includes a second connection surface located at the second cut surface; the first connection surface and the second connection surface are electrically connected through the connection line; Preferably, a first recessed portion is formed on the first connection surface, and a second recessed portion is formed on the second connection surface; the connection trace comprises a first embedded portion matching the first recessed portion and a second embedded portion matching the second recessed portion; Preferably, the protective layer is fixedly connected to the display screen body and the binding screen body respectively.

9. A display module, characterized in that: The invention comprises a display panel as claimed in any one of claims 1 to 6.

10. A display device, characterized in that: Comprising the display module as claimed in claim 9.

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