Display screen module and preparation method therefor, and electronic device

Abstract

A display screen module (100), a preparation method and an electronic device (200). The display screen module (100) comprises a substrate (40) and a display panel (10). The display panel (10) comprises a first stacked portion (11), a connection portion (13) and a second stacked portion (12), wherein the first stacked portion (11) and the second stacked portion (12) are respectively located on a first side and a second side of the substrate (40) in a first direction (Z); and the connection portion (13) is connected to the first stacked portion (11) and at least partially bends towards the second side of the substrate (40), such that the connection portion (13) is connected to the second stacked portion (12). Moreover, the display panel (10) is bent at the connection portion (13); and a groove portion (14) is provided on the recessed surface of the connection portion (13) facing the substrate (40), thereby reducing an inherent volume of the connection portion (13) at a bent inner side, and providing a clearance space for the bent inner side of the connection portion (13), and thus being capable of effectively alleviating the pressure on the bent inner side of the connection portion (13), and thus reducing the stress on the bent part of the display panel (10); in addition, a reduction in the volume of the display panel (10) at the bent part is facilitated, thereby achieving a relatively large screen-to-body ratio.

Description

Display screen module, preparation method thereof and electronic device

[0001] The present application claims priority to the Chinese patent application No. 202411132405.0, filed on August 16, 2024, with the State Intellectual Property Office of China, and the Chinese patent application No. 202411132405.0 has the title of "Display screen module, preparation method thereof and electronic device", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of electronic devices, in particular to a display screen module, a preparation method thereof and an electronic device. BACKGROUND

[0003] The electronic device includes a display screen, and a relative ratio of an area of the display screen to an area of a front panel of the electronic device is a screen ratio. The larger the screen ratio, the larger the screen, and the better the visual experience. The electronic device also includes a circuit board, and the display screen and the circuit board are stacked. A terminal bending process is usually used to electrically connect the display screen and the circuit board through a metal wire.

[0004] The metal wire is gathered and bent at an edge of the display screen, so that the metal wire is bent to form a terminal bending area at the edge of the display screen. The terminal bending area still occupies the space at the edge of the display screen, which causes the setting area of the display screen to be compressed, and is not conducive to forming a larger screen ratio of the electronic device. Although reducing the bending radius of the metal wire can reduce the area of the terminal bending area, the stress on the display screen is increased, which is not conducive to ensuring the service life and manufacturing yield of the electronic device. SUMMARY

[0005] The present application provides a display screen module, a preparation method thereof and an electronic device. The display screen module is bent at a connecting portion. A groove portion is arranged on a concave surface of the connecting portion facing the substrate, which reduces the inherent volume of the connecting portion on the inner side of the bending, effectively slows down the compression of the inner side of the connecting portion, and further reduces the stress at the bending of the display panel, which is conducive to reducing the volume of the display panel at the bending, and further realizing a larger screen ratio and service life.

[0006] In a first aspect, the present application provides a display screen module, comprising: a substrate; a display panel, comprising a first stacked portion, a connecting portion and a second stacked portion, the first stacked portion is located on a first side of the substrate in a first direction, the second stacked portion is located on a second side of the substrate in the first direction, the connecting portion is connected to the first stacked portion and is bent at least partially toward the second side of the substrate to connect the second stacked portion, and a groove portion is formed on a concave surface of the connecting portion facing the substrate.

[0007] The display screen module provided by the application comprises a substrate and a display panel, the display panel comprises a first laminated part, a connecting part and a second laminated part, the first laminated part and the second laminated part are respectively located on the first side and the second side of the substrate in the first direction, the connecting part is connected to the first laminated part and is at least partially bent towards the second side of the substrate, so that the connecting part and the second laminated part are connected, and the display panel is bent at the connecting part, the concave surface of the connecting part towards the substrate has a groove part, which reduces the inherent volume of the inner side of the connecting part in the bending and provides a space for the inner side of the connecting part in the bending, so that the inner side of the connecting part in the bending can be effectively relieved, thereby reducing the stress at the bending of the display panel and being beneficial to reducing the volume of the display panel at the bending, and a larger screen ratio can be realized.

[0008] In a possible implementation, the groove part is located on the side of the connecting part close to the first laminated part, and the side wall of the first laminated part close to the connecting part constitutes the side wall of the groove part; and / or, the groove part is located on the side of the connecting part close to the second laminated part, and the side wall of the second laminated part close to the connecting part constitutes the side wall of the groove part. By locating the groove part on the side of the connecting part close to the first laminated part and making the side wall of the first laminated part close to the connecting part constitute the side wall of the groove part, the side of the connecting part connected to the first laminated part has a smaller thickness, and the starting point of the bending of the connecting part is closer to the side of the first laminated part; by locating the groove part on the side of the connecting part close to the second laminated part and making the side wall of the second laminated part close to the connecting part constitute the side wall of the groove part, the side of the connecting part connected to the second laminated part has a smaller thickness, and the starting point of the bending of the connecting part is closer to the side of the second laminated part. The above two cases are both beneficial to reducing the length of the connecting part in the second direction and further reducing the volume of the connecting part.

[0009] In a possible implementation, the thickness of the connecting part is smaller than the thickness of the first laminated part and the thickness of the second laminated part. By making the thickness of the connecting part smaller than the thickness of the first laminated part and the thickness of the second laminated part, the stress generated by the bending of the connecting part is smaller, the connecting part can have a larger bending degree, and it is beneficial to reduce the bending radius of the connecting part and further reduce the volume of the connecting part.

[0010] In a possible implementation, the display substrate further comprises a first back film and a second back film, the first back film is located between the first laminated portion and the substrate, the first laminated portion and the first back film are laminated, the second back film is located between the substrate and the second laminated portion, and the second laminated portion and the second back film are laminated. By further comprising the first back film and the second back film, the first back film is located between the first laminated portion and the substrate, the first laminated portion and the first back film are laminated, the second back film is located between the substrate and the second laminated portion, and the second laminated portion and the second back film are laminated, so that the first back film supports the first laminated portion, and the second back film supports the second laminated portion, thereby ensuring the stability of the positions of the first laminated portion and the second laminated portion.

[0011] In a possible implementation, the first back film comprises a main body area and a thinning area, the thinning area is located on one side of the main body area close to the connecting portion, the thickness of the first back film in the thinning area is less than the thickness of the first back film in the main body area, and the first back film is at least partially bent in the thinning area; and / or, the second back film comprises a main body area and a thinning area, the thinning area is located on one side of the main body area close to the connecting portion, the thickness of the second back film in the thinning area is less than the thickness of the second back film in the main body area, and the second back film is at least partially bent in the thinning area. By comprising the main body area and the thinning area, the thickness of the thinning area is less than the thickness of the main body area, so that the first back film can be at least partially bent in the thinning area, and the bending starting point of the display panel is closer to the side of the first laminated portion away from the connecting portion, which is beneficial to reducing the length of the display panel in the second direction and further reducing the volume of the display panel. Similarly, by comprising the main body area and the thinning area, the thickness of the thinning area is less than the thickness of the main body area, so that the second back film can be at least partially bent in the thinning area, and the bending starting point of the display panel is closer to the side of the second laminated portion away from the connecting portion, which is beneficial to reducing the length of the display panel in the second direction and further reducing the volume of the display panel.

[0012] In a possible implementation, the surface of the first back film facing the substrate has a first groove, and the first groove constitutes the thinning area; and / or, the surface of the second back film facing the substrate has a second groove, and the second groove constitutes the thinning area. By comprising the first groove and the second groove, the first groove constitutes the thinning area of the first back film, and the second groove constitutes the thinning area of the second back film, which is beneficial to simplifying the setting process of the thinning areas of the first back film and the second back film, so that the first back film and the second back film have a smaller thickness on the side close to the connecting portion, and the first back film and the second back film are convenient to bend.

[0013] In a possible implementation, the first layering portion extends along a second direction and is connected to the connecting portion, the second direction is perpendicular to the first direction, and the maximum distance between the first back film and the connecting portion in the second direction is 0.1 mm to 0.9 mm; and / or the second layering portion extends along a second direction and is connected to the connecting portion, and the maximum distance between the second back film and the connecting portion in the second direction is 0.1 mm to 0.9 mm. By extending the first layering portion along the second direction and connecting it to the connecting portion, extending the second layering portion along the second direction and connecting it to the connecting portion, and making the second direction perpendicular to the first direction, the vertex of the connecting portion away from the first back film or the second back film in the second direction is the endpoint of the display panel in the second direction. By making the length of the connecting portion protruding from the first back film and / or the second back film in the second direction within the above range, the length of the connecting portion in the second direction is reasonably limited, the connecting portion is miniaturized, and the occupied space of the terminal bending area is reduced.

[0014] In a possible implementation, the recess portion is formed as a through groove in a third direction, and the third direction is perpendicular to the depth direction of the recess portion and the first direction. By forming the recess portion as a through groove in the third direction, and making the third direction perpendicular to the depth direction of the recess portion and the first direction, the setting of the recess portion is simplified, the inherent volume of the connecting portion inside the bending is uniformly reduced, the connecting portion can reach a greater bending degree, and the occupied space of the connecting portion is reduced.

[0015] In a possible implementation, the number of recess portions is at least two, and the at least two recess portions are arranged in parallel. By making the number of recess portions at least two and arranging the at least two recess portions in parallel, the inherent volume of the connecting portion inside the bending is uniformly reduced, the connecting portion can reach a greater bending degree, the occupied space of the connecting portion is reduced, and the area where the thickness of the connecting portion is small is avoided to be too large, thereby ensuring the mechanical strength of the connecting portion at the setting position of the recess portion.

[0016] In a possible implementation, the depth of the recess portion is less than or equal to 2 / 3 of the thickness of the display panel. By making the depth of the recess portion less than or equal to 2 / 3 of the thickness of the display panel, the depth of the recess portion is reasonably set, the reduction of the volume of the connecting portion inside the bending by the recess portion is ensured, and the connecting portion can reach a greater bending degree. At the same time, the depth of the recess portion is avoided to be too large, the mechanical strength of the connecting portion at the setting position of the recess portion is ensured, and the service life of the connecting portion is further ensured.

[0017] In a possible implementation, the width of the groove part is less than or equal to 2 mm. By making the width of the groove part less than or equal to 2 mm, the area of the region where the thickness of the connecting part is small is reasonable, the setting process of the groove part is simplified, the mechanical strength of the connecting part at the setting position of the groove part is ensured, and the service life of the connecting part is ensured.

[0018] In a possible implementation, the display screen module further includes a metal wire, the metal wire is located on the side of the display panel away from the substrate, the metal wire includes a wire part and a reinforcing part, the reinforcing part is arranged opposite to the groove part on the connecting part, and the thickness of the reinforcing part is greater than or equal to the thickness of the wire part. By making the display screen module further include a metal wire, the metal wire is located on the side of the display panel away from the substrate, the metal wire includes a wire part and a reinforcing part, the reinforcing part is arranged opposite to the groove part on the connecting part, and the thickness of the reinforcing part is greater than or equal to the thickness of the wire part, the metal wire has greater mechanical strength at the position corresponding to the groove part, the service life of the metal wire is ensured, and the metal wire is prevented from being easily broken at the position corresponding to the groove part.

[0019] In a possible implementation, the wire part extends from the first laminated part to the connecting part and the second laminated part in sequence, and the reinforcing part covers the wire part arranged opposite to the groove part. By making the wire part extend from the first laminated part to the connecting part and the second laminated part in sequence, and the reinforcing part cover the wire part arranged opposite to the groove part, and the reinforcing part has a certain thickness, the total thickness of the metal wire at the setting position of the reinforcing part is the sum of the thickness of the reinforcing part and the thickness of the wire part, the metal wire has greater thickness at the position corresponding to the groove part, which is beneficial to improving the mechanical strength of the metal wire at the position corresponding to the groove part, and the service life of the metal wire is ensured.

[0020] In a possible implementation, the wire part includes a first metal wire and a second metal wire, the first metal wire is located on the first laminated part, part of the second metal wire is located on the connecting part, there is a gap between the first metal wire and the second metal wire, the gap is arranged opposite to the groove part, and the reinforcing part connects the first metal wire and the second metal wire. By making the wire part include a first metal wire and a second metal wire, there is a gap between the first metal wire and the second metal wire, the gap is arranged opposite to the groove part, and the reinforcing part connects the first metal wire and the second metal wire, the metal wire has greater mechanical strength at the position corresponding to the groove part, the service life of the metal wire is ensured, and the metal wire is prevented from being easily broken at the position corresponding to the groove part.

[0021] In a possible implementation, the display module further includes a protective layer located on a side of the display panel away from the substrate, a surface of the protective layer away from the display panel is provided with a third groove, and the third groove and the groove portion are staggered.

[0022] In a possible implementation, the substrate, the first laminated portion, the connecting portion and the second laminated portion jointly enclose a containing space, the containing space is filled with a filling member, and at least part of the filling member fills the groove portion. By jointly enclosing a containing space with the substrate, the first laminated portion, the connecting portion and the second laminated portion, and filling the containing space with a filling member, and filling at least part of the filling member in the groove portion, the mechanical strength of the display panel at the groove portion is ensured, and the use stability and service life of the display module are ensured.

[0023] In a second aspect, the present application further provides a preparation method of a display module, for preparing the display module of any one of the embodiments of the first aspect, the preparation method comprising:

[0024] placing the first laminated portion of the display panel on a first side of the substrate in the first direction, wherein the display panel includes the first laminated portion, a connecting portion and a second laminated portion, the connecting portion is connected between the first laminated portion and the second laminated portion, and the connecting portion is formed with a groove portion;

[0025] bending the connecting portion so that the second laminated portion is located on a second side of the substrate in the first direction, and the groove portion is located at a concave surface of the connecting portion facing the substrate.

[0026] The beneficial effects corresponding to the embodiments and the above embodiments are similar, and the embodiments will not be described again.

[0027] In a possible implementation, the display module includes a circuit portion, the circuit portion includes a first metal wire and a second metal wire, the first metal wire is located on the first laminated portion, part of the second metal wire is located on the connecting portion, and the first metal wire and the second metal wire have a gap therebetween, the gap is arranged opposite to the groove portion.

[0028] After the step of "bending the connecting portion so that the second laminated portion is located on a second side of the substrate in the first direction and the groove portion is located at a concave surface of the connecting portion facing the substrate", the preparation method further comprises:

[0029] A reinforcing portion is formed on a side of the display panel opposite to the substrate, the reinforcing portion connects the first metal wire and the second metal wire, and the reinforcing portion and the groove portion are oppositely arranged.

[0030] By causing the preparation method of the display screen module to comprise the above method, after the display panel is bent, the reinforcing portion can be arranged according to the shape of the display panel at the gap, thereby ensuring the mechanical strength of the metal wire at the connection between the first metal wire and the second metal wire, and further ensuring the service life of the metal wire.

[0031] In a possible implementation, the display screen module comprises a circuit portion, the circuit portion extends from the first laminated portion to the connecting portion and the second laminated portion in sequence;

[0032] After the step of "bending the connecting portion so that the second laminated portion is located on a second side of the substrate in the first direction and the groove portion is located at a concave surface of the connecting portion facing the substrate", the preparation method further comprises:

[0033] A reinforcing portion is formed on a side of the display panel opposite to the substrate, the reinforcing portion covers the circuit portion, and the reinforcing portion and the groove portion are oppositely arranged.

[0034] By causing the preparation method of the display screen module to comprise the above method, the thickness of the region opposite to the groove portion of the metal wire is increased, the mechanical strength of the region opposite to the groove portion of the metal wire is increased, and the service life of the metal wire is further ensured.

[0035] In a possible implementation, after the step of "placing the first laminated portion of the display panel on a first side of the substrate in the first direction", the preparation method further comprises:

[0036] A filling layer is formed on a side of the display panel opposite to the substrate, the filling layer is formed with a filling groove, and the circuit portion is exposed from the filling groove.

[0037] By causing the preparation method of the display screen module to comprise the above method, when the reinforcing portion is arranged, the arrangement position of the reinforcing portion corresponds to the filling groove, which is beneficial to simplifying the arrangement mode of the reinforcing portion.

[0038] In a third aspect, the present application provides an electronic device, comprising a circuit board and the display module of any one of the first aspect or the display module prepared by the method of any one of the second aspect, wherein the circuit board and the display module are electrically connected. The beneficial effects of the present embodiment are similar to those of the above-mentioned embodiments, and the present embodiment will not be described again. BRIEF DESCRIPTION OF DRAWINGS

[0039] FIG. 1 is an exploded structural schematic diagram of an electronic device according to an embodiment of the present application;

[0040] FIG. 2 is a structural schematic diagram of a display module according to an embodiment of the present application;

[0041] FIG. 3 is a sectional view of the display module at A-A in the embodiment shown in FIG. 2;

[0042] FIG. 4 is a sectional view of a display module according to an embodiment of the present application, wherein the connecting portion has a groove portion on both sides;

[0043] FIG. 5 is a sectional view of a display module according to an embodiment of the present application, wherein the first layer portion and the groove portion are connected;

[0044] FIG. 6 is a sectional view of a display module according to an embodiment of the present application, wherein the first layer portion and the second layer portion are connected to the groove portion;

[0045] FIG. 7 is a sectional view of a display module according to an embodiment of the present application, wherein the groove portion and the connecting portion have the same extension length;

[0046] FIG. 8 is a sectional view of a display module according to an embodiment of the present application, wherein the first back film has a first groove;

[0047] FIG. 9 is a sectional view of a display module according to an embodiment of the present application, wherein the second back film has a second groove;

[0048] FIG. 10 is a structural schematic diagram of a display panel according to an embodiment of the present application;

[0049] FIG. 11 is a bottom view of an unfolded display panel according to an embodiment of the present application, wherein the groove portion is a through groove;

[0050] FIG. 12 is a bottom view of an unfolded display panel according to an embodiment of the present application, wherein at least two groove portions are parallel;

[0051] FIG. 13 is a bottom view of an unfolded display panel according to an embodiment of the present application, wherein at least two groove portions are arranged at intervals;

[0052] FIG. 14 is a front view of the unfolded display panel in the embodiment shown in FIG. 11;

[0053] FIG. 15 is a structural schematic diagram of a display module provided by an embodiment of the present application, in which a reinforcing portion connects a first metal wire and a second metal wire;

[0054] FIG. 16 is a sectional view of the display module at B-B in the embodiment shown in FIG. 15;

[0055] FIG. 17 is a structural schematic diagram of a display module provided by an embodiment of the present application, in which the display module has a first widened portion and a second widened portion;

[0056] FIG. 18 is a structural schematic diagram of a display module provided by an embodiment of the present application, in which a reinforcing portion covers a circuit portion;

[0057] FIG. 19 is a sectional view of the display module at C-C in the embodiment shown in FIG. 18;

[0058] FIG. 20 is a sectional view of a display module provided by an embodiment of the present application, in which the display module has a protective layer and a filler;

[0059] FIG. 21 is a flowchart of a method for manufacturing a display module provided by an embodiment of the present application;

[0060] FIG. 22 is a flowchart of a method for manufacturing a display module provided by an embodiment of the present application, in which a reinforcing portion connects a circuit portion;

[0061] FIG. 23 is a flowchart of a method for manufacturing a display module provided by an embodiment of the present application, in which a reinforcing portion covers a circuit portion;

[0062] FIG. 24 is a front view of a display module provided by an embodiment of the present application, before being bent;

[0063] FIG. 25 is a front view of a display module provided by an embodiment of the present application, after a display panel is bent;

[0064] FIG. 26 is a right view of a display module provided by an embodiment of the present application, in which the display module has a filler layer;

[0065] FIG. 27 is a front view of a display module provided by an embodiment of the present application, before being bent, in which the display module has a first groove;

[0066] FIG. 28 is a front view of a display module provided by an embodiment of the present application, after a display panel is bent. DETAILED DESCRIPTION

[0067] The embodiments of the present application will be described below with reference to the accompanying drawings.

[0068] For the convenience of understanding, the English abbreviations and related technical terms involved in the embodiments of the present application will be explained and described below.

[0069] It should be noted that the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0070] The terms used in the embodiments of the present application are merely for the purpose of describing the specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0071] It should be understood that the term "and / or" used herein is merely a description of the same field of associated objects, indicating that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " herein generally represents an "or" relationship between the front and rear associated objects.

[0072] Depending on the context, the word "if" as used herein can be interpreted as meaning "when" or "while" or "in response to determining" or "in response to detecting". Similarly, depending on the context, the phrase "if it is determined" or "if (a stated condition or event) is detected" can be interpreted as meaning "when it is determined" or "in response to determining" or "when (a stated condition or event) is detected" or "in response to detecting (a stated condition or event)".

[0073] It should be understood that "first", "second", and the like used in the present application are merely for the purpose of distinguishing the description, and cannot be understood as indicating or implying relative importance, nor can it be understood as indicating or implying sequence.

[0074] In the description of the present application, the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is merely for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0075] In the description of the present application, it should be noted that due to manufacturing or assembly errors, there may be a slight angle deviation within 15 degrees in the design that should be perpendicular or parallel, which is also considered to be perpendicular or parallel in the present embodiment.

[0076] As used herein, the term "in the range of" includes the two end values of the range by default, unless otherwise specified and limited, for example, in the range of 1 to 5, including both 1 and 5.

[0077] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or abutment connection or integral connection; for those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0078] It should be understood that in the present application, "electrically connected" can be understood as that the components are in physical contact and electrically conductive; it can also be understood as that in the circuit structure, different components are connected through the entity circuit such as copper foil or wire of printed circuit board (PCB) which can transmit signals. "Connection" and "connection" can refer to a mechanical connection relationship or a physical connection relationship, for example, A and B are connected or A and B are connected, which means that there is a fastening component (such as screw, bolt, rivet, etc.) between A and B, or A and B are in contact with each other and A and B are difficult to be separated.

[0079] In the present application, "length" can be understood as the physical length of an object, or as the electrical length. The electrical length can refer to the product of the physical length (i.e. mechanical length or geometric length) and the ratio of the transmission time of the electrical or electromagnetic signal in the medium to the time required for the signal to pass through the same distance in free space as the physical length of the medium, which can satisfy the following formula:

[0080] Wherein, L is the physical length, a is the transmission time of the electrical or electromagnetic signal in the medium, and b is the transmission time in free space.

[0081] Alternatively, the electrical length can also refer to the ratio of the physical length (i.e. mechanical length or geometric length) to the wavelength of the transmitted electromagnetic wave, which can satisfy the following formula:

[0082] Wherein, L is the physical length, and λ is the wavelength of the electromagnetic wave.

[0083] Electronic devices include, but are not limited to, devices capable of receiving and / or transmitting communication signals connected via any one or more of the following connection methods:

[0084] (1) via wired connection, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection;

[0085] (2) via a wireless interface, such as a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter.

[0086] Electronic devices configured to communicate over a wireless interface can be referred to as "mobile terminals". Examples of mobile terminals include, but are not limited to, the following electronic devices:

[0087] (1) a satellite telephone or a cellular telephone;

[0088] (2) a Personal Communications System (PCS) terminal that can combine a cellular radiotelephone with data processing, facsimile, and data communications capabilities;

[0089] (3) a radiotelephone, a pager, an Internet / Intranet access, a Web browser, a notepad, a calendar, a Personal Digital Assistant (PDA) equipped with a Global Positioning System (GPS) receiver;

[0090] (4) a conventional laptop and / or palmtop receiver;

[0091] (5) a conventional laptop and / or palmtop radiotelephone transceiver, etc.

[0092] Referring to FIG. 1, FIG. 1 shows an exploded structural schematic diagram of an electronic device 200 provided by an embodiment of the present application. The electronic device 200 includes, but is not limited to, a mobile phone, a tablet computer, a personal computer, a notebook computer, a wearable device, and the like. In the present embodiment, the electronic device 200 is taken as a mobile phone for example.

[0093] The electronic device 200 comprises a display screen module 100 and a circuit board 210. The display screen module 100 and the circuit board 210 are stacked in a first direction (Z direction in FIG. 1). The display screen module 100 has a display surface 110 and a mounting surface 120 opposite to each other in a thickness direction. The display surface 110 has a display area 111 for displaying information such as text, images, and videos. The circuit board 210 is located on the side of the display screen module 100 with the mounting surface 120. The display screen module 100 has a metal wire 60. One end of the metal wire 60 is located on the side of the display screen module 100 with the display surface 110. The other end of the metal wire 60 is used for electrical connection with the circuit board 210, so that the display screen module 100 and the circuit board 210 are electrically connected. The circuit board 210 is located on the side of the display screen module 100 with the mounting surface 120, so that the other end of the metal wire 60 needs to be bent and wound to the side of the mounting surface 120 of the display screen module 100. In order to simplify the manufacturing process of the display screen module 100 and ensure the stability of the connection between the display screen module 100 and the circuit board 210, a terminal bending process is usually used to bend the edge of the display screen module 100 and ensure the electrical connection between the display screen module 100 and the circuit board 210.

[0094] In the electronic device 200 using the terminal bending process, the display screen module 100 usually has a plurality of metal wires 60. One end of each of the plurality of metal wires 60 is connected to the display screen module 100. The other end of each of the plurality of metal wires 60 is gathered at the edge of the display screen module 100. The display screen module 100 is bent towards the side of the mounting surface 120 at the edge where the plurality of metal wires 60 are gathered, so that the plurality of metal wires 60 are simultaneously bent after being gathered. The other end of the plurality of metal wires 60 after being bent reaches the side of the mounting surface 120 of the display screen module 100, so that the plurality of metal wires 60 after being bent can be connected to the circuit board 210.

[0095] The relative ratio of the area of the display area 111 in the display screen module 100 and the area of the front panel of the electronic device 200 is the screen ratio. The larger the screen ratio is, the larger the screen is, and the better the visual experience is. The area where the metal wires 60 converge and bend at the edge of the display screen module 100 forms a terminal bending area 112. The terminal bending area 112 occupies the space at the edge of the display screen module 100, and the terminal bending area 112 cannot be used to display information, which leads to the compression of the display area 111 of the display screen module 100. Therefore, it is necessary to reduce the occupied space of the terminal bending area 112 and increase the occupied space of the display area 111, so as to form a larger screen ratio for the electronic device 200. Reducing the bending radius of the display screen module 100 at the terminal bending area 112 can reduce the area of the terminal bending area 112. However, as the bending radius decreases, the stress on the display screen module 100 increases, which limits the size of the bending radius of the terminal bending area 112. It is difficult to further reduce the area of the terminal bending area 112, and a smaller bending radius is accompanied by a larger stress, which is not conducive to ensuring the service life and manufacturing yield of the electronic device 200.

[0096] The display screen module 100 will be specifically introduced below.

[0097] The display screen module 100 provided in the present application is shown in FIG. 2, which shows a structural schematic diagram of the display screen module 100 provided in the embodiment of the present application. The display screen module 100 includes a substrate 40 and a display panel 10. The display panel 10 is bent, and the substrate 40 is used to support the display panel 10, so as to improve the structural strength and stability of the display panel 10. The display panel 10 includes a first laminated part 11, a connecting part 13 and a second laminated part 12. The first laminated part 11, the connecting part 13 and the second laminated part 12 are of an integrated structure. The connecting part 13 is located between the first laminated part 11 and the second laminated part 12. The connecting part 13 and the first laminated part 11 can be connected or have a spacing distance. Similarly, the connecting part 13 and the second laminated part 12 can be connected or have a spacing distance.

[0098] The first laminated portion 11 is located on a first side of the substrate 40 in a first direction (for example, the Z direction shown in FIG. 2), and the second laminated portion 12 is located on a second side of the substrate 40 in the first direction, so that the first laminated portion 11, the substrate 40, and the second laminated portion 12 are sequentially arranged in the first direction. For example, referring to FIG. 2, the first side and the second side are opposite sides of the substrate 40 in the first direction, so that the first laminated portion 11 and the second laminated portion 12 are located on opposite sides of the substrate 40 in the first direction. The connecting portion 13 is connected to the first laminated portion 11, and at least part of the connecting portion 13 is bent towards the second side of the substrate 40, so that the connecting portion 13 can also be connected to the second laminated portion 12. At least part of the connecting portion 13 is bent, that is, the display panel 10 is bent at the connecting portion 13. The display panel 10 is distributed on both the first side and the second side of the substrate 40, which is conducive to forming a terminal bending area 112 near the bending portion of the display panel 10, and facilitating the electrical connection between the display screen module 100 and the circuit board 210.

[0099] In an embodiment, referring to FIGS. 2 and 3, FIG. 3 shows a cross-sectional view of the display screen module 100 at A-A in the embodiment shown in FIG. 2. The first laminated portion 11, the substrate 40, and the second laminated portion 12 are sequentially arranged in the first direction (for example, the Z direction shown in FIGS. 2 and 3). In a plane perpendicular to the first direction, the orthographic projection of the first laminated portion 11 and the orthographic projection of the second laminated portion 12 are both located within the orthographic projection range of the substrate 40. The connecting portion 13 is located on a side of the substrate 40 perpendicular to the first direction. In a plane perpendicular to the first direction, the orthographic projection of the connecting portion 13 and the orthographic projection of the substrate 40 do not overlap. The orthographic projection of the connecting portion 13 and the orthographic projection of the substrate 40 can be connected at the edge, or the orthographic projection of the connecting portion 13 and the orthographic projection of the substrate 40 can be arranged with a spacing therebetween.

[0100] Referring to FIGS. 2 and 3, the connecting portion 13 is connected to the first laminated portion 11 and the second laminated portion 12. The first laminated portion 11 and the second laminated portion 12 are located on the first side and the second side of the substrate 40 in the first direction, respectively. At least part of the connecting portion 13 is bent from the first side towards the second side, so that at least part of the connecting portion 13 is located on a side of the substrate 40 in a second direction (for example, the X direction shown in FIGS. 2 and 3), and the second direction is perpendicular to the first direction. Referring to FIG. 3, after being bent, the connecting portion 13 protrudes away from the substrate 40 in the second direction, so that the side of the connecting portion 13 in the second direction towards the substrate 40 is the inner side of the bending of the connecting portion 13. At least part of the surface of the connecting portion 13 towards the substrate 40 is concave. The side of the connecting portion 13 in the second direction away from the substrate 40 is the outer side of the bending of the connecting portion 13. At least part of the surface of the connecting portion 13 away from the substrate 40 is convex. It can be understood that the surface of the connecting portion 13 towards the substrate 40 can be concave as a whole, or part of the surface of the connecting portion 13 towards the substrate 40 can be concave, and the other part of the surface of the connecting portion 13 towards the substrate 40 can be flat or convex.

[0101] The connecting portion 13 is bent, and a concave surface is formed on the inner side of the bent portion. The connecting portion 13 is pressed at the concave surface, and stress is generated to resist the bending of the connecting portion 13. In order to ensure the stability of the relative positions of the first laminated portion 11 and the second laminated portion 12 relative to the substrate 40, the length of the connecting portion 13 in the extension direction thereof needs to be increased, and the stress generated by the bending of the connecting portion 13 is dispersed in the extension direction of the connecting portion 13, which leads to an increase in the volume of the connecting portion 13, and is not conducive to reducing the occupied space at the bent portion of the display panel 10. At the same time, the inner side of the bent portion of the connecting portion 13 has a certain inherent volume, which leads to the fact that after the connecting portion 13 is bent to a certain extent, the connecting portion 13 cannot be further bent due to the limitation of the inner side of the bent portion, which is not conducive to further reducing the occupied space at the connecting portion 13.

[0102] Please refer to FIG. 2 and FIG. 3, the connecting portion 13 is formed with a groove portion 14 at the concave surface thereof facing the substrate 40. The thickness of the connecting portion 13 at the groove portion 14 is smaller, which reduces the inherent volume of the inner side of the bent portion of the connecting portion 13, is conducive to achieving a greater bending degree of the connecting portion 13, and reduces the occupied space of the connecting portion 13. At the same time, the groove portion 14 is located at the region where the connecting portion 13 is pressed, and provides a certain avoiding space for the inner side of the bent portion of the connecting portion 13, which can effectively alleviate the pressing of the inner side of the bent portion of the connecting portion 13, and further reduces the stress generated by the bending of the connecting portion 13, which is conducive to improving the service life of the connecting portion 13 and reducing the volume of the connecting portion 13.

[0103] After the connecting portion 13 is bent, the convex surface of the connecting portion 13 facing away from the substrate 40 is stretched. The groove portion 14 is located at the concave surface of the connecting portion 13 facing the substrate 40, so that the convex surface of the connecting portion 13 facing away from the substrate 40 is relatively smooth, which is conducive to ensuring the structural strength of the connecting portion 13, and further ensuring that the display screen module 100 has a good service life. The groove portion 14 is located at the connecting portion 13, so that the first laminated portion 11 and the second laminated portion 12 can have a larger connecting area with the substrate 40, which is conducive to ensuring the stability of the relative positions of the first laminated portion 11 and the second laminated portion 12 relative to the substrate 40.

[0104] The display module 100 provided by the present application comprises a substrate 40 and a display panel 10, the display panel 10 comprises a first laminated part 11, a connecting part 13 and a second laminated part 12, the first laminated part 11 and the second laminated part 12 are respectively located on the first side and the second side of the substrate 40 in the first direction, the connecting part 13 is connected to the first laminated part 11 and is at least partially bent towards the second side of the substrate 40, so that the connecting part 13 and the second laminated part 12 are connected, and the display panel 10 is bent at the connecting part 13, the concave surface of the connecting part 13 towards the substrate 40 is provided with a groove part 14, which reduces the inherent volume of the inner side of the bending of the connecting part 13 and provides a space for the inner side of the bending of the connecting part 13, which can effectively slow down the extrusion of the inner side of the bending of the connecting part 13, thereby reducing the stress at the bending of the display panel 10, which is beneficial to reduce the volume of the display panel 10 at the bending, thereby realizing a larger screen ratio.

[0105] It should be noted that the concave surface of the connecting part 13 towards the substrate 40 can be provided with one or more groove parts 14, and the present application does not limit the number of groove parts 14. In one possible implementation, please refer to FIG. 3 and FIG. 4, FIG. 4 shows a cross-sectional view of the display module 100 provided by the embodiment of the present application, which has groove parts 14 on both sides of the connecting part 13. The concave surface of the connecting part 13 towards the substrate 40 is provided with a groove part 14, and the size of the groove part 14 can be set according to actual needs, so that the groove part 14 provides sufficient space for the inner side of the bending of the connecting part 13, effectively slows down the extrusion of the inner side of the bending of the connecting part 13, and at the same time ensures that the connecting part 13 has sufficient structural strength.

[0106] The connecting part 13 extends from the first side to the second side, and in the extension direction of the connecting part 13, the extension length of the groove part 14 can be less than the extension length of the connecting part 13, so that the groove part 14 is only partially distributed on the surface of the connecting part 13 towards the substrate 40, and the connecting part 13 has a smaller thickness in the partial area with the groove part 14; or the extension length of the groove part 14 can be equal to the extension length of the connecting part 13, so that the entire connecting part 13 has a smaller thickness.

[0107] The setting position of the groove part 14 when the extension length of the groove part 14 is less than the extension length of the connecting part 13 will be described in detail below in combination with the embodiments shown in FIG. 3 to FIG. 6.

[0108] In one embodiment, referring to FIG. 3 and FIG. 4, in the extending direction of the connecting portion 13, one part of the connecting portion 13 is bent to extend, and the other part of the connecting portion 13 is straight to extend, so that one part of the surface of the connecting portion 13 towards the substrate 40 is concave, and the other part of the surface of the connecting portion 13 towards the substrate 40 is flat, the bending degree of the connecting portion 13 at the concave part is larger, so that the connecting portion 13 is easily pressed at the concave part, and the stress of the connecting portion 13 at the concave part is larger. The groove portion 14 is located at the concave part of the connecting portion 13 towards the substrate 40, which can effectively slow down the pressing of the connecting portion 13 at the concave part, reduce the stress of the connecting portion 13 at the concave part, and is beneficial to reduce the volume of the connecting portion 13, and realize the miniaturization of the connecting portion 13. Since only one part of the surface of the connecting portion 13 towards the substrate 40 is concave, the length of the groove portion 14 is smaller than the extending length of the connecting portion 13, and the connecting portion 13 has a larger thickness at the region without the groove portion 14, which is beneficial to ensure that the connecting portion 13 has a certain mechanical strength.

[0109] Exemplarily, referring to FIG. 3, the connecting portion 13 is bent at the side close to the first laminated portion 11, and the groove portion 14 is located at the bending part, so that the groove portion 14 is located at the side of the connecting portion 13 close to the first laminated portion 11, and the connecting portion 13 has a larger bending degree at the side close to the first laminated portion 11, which is beneficial to reduce the bending radius of the connecting portion 13, and further reduce the volume of the connecting portion 13; at the same time, the connecting portion 13 at the side close to the second laminated portion 12 can be tightened towards the substrate 40 in the second direction (such as the X direction shown in FIG. 3 and FIG. 4), the stress is concentrated at the side of the connecting portion 13 close to the first laminated portion 11, and is reduced by the groove portion 14 arranged at the side, which is beneficial to simplify the arrangement of the connecting portion 13 and the groove portion 14, and ensure that the connecting portion 13 has a smaller volume.

[0110] Similarly, the connecting portion 13 can also be bent at the side close to the second laminated portion 12, so that the groove portion 14 is located at the bending part of the connecting portion 13 at the side close to the second laminated portion 12, so that the connecting portion 13 has a larger bending degree at the side close to the second laminated portion 12, and the connecting portion 13 at the side close to the first laminated portion 11 can be tightened towards the substrate 40 in the second direction, the stress is concentrated at the side of the connecting portion 13 close to the second laminated portion 12, and is reduced by the groove portion 14 arranged at the side, which is beneficial to reduce the bending radius of the connecting portion 13, and further reduce the volume of the connecting portion 13, and simplify the arrangement of the connecting portion 13 and the groove portion 14.

[0111] Exemplarily, referring to FIG. 4, the connecting portion 13 is bent on both sides close to the first laminated portion 11 and the second laminated portion 12, and the connecting portion 13 is provided with a first groove portion 141 on the side close to the first laminated portion 11 and a second groove portion 142 on the side close to the second laminated portion 12, so that the connecting portion 13 has a large bending degree on both sides close to the first laminated portion 11 and the second laminated portion 12, which is beneficial to reduce the bending radius of the connecting portion 13 and further reduce the volume of the connecting portion 13. At the same time, the stress is dispersed to both sides of the connecting portion 13 close to the first laminated portion 11 and the second laminated portion 12, and the first groove portion 141 and the second groove portion 142 can both realize the reduction of stress, so that the stress distribution on the connecting portion 13 is more uniform, which is beneficial to ensure the mechanical strength of the connecting portion 13.

[0112] When the groove portion 14 is located on the side of the connecting portion 13 close to the first laminated portion 11, the groove portion 14 can have a certain interval distance from the first laminated portion 11, or the groove portion 14 can be in contact with the first laminated portion 11; similarly, when the groove portion 14 is located on the side of the connecting portion 13 close to the second laminated portion 12, the groove portion 14 can have a certain interval distance from the second laminated portion 12, or the groove portion 14 can be in contact with the second laminated portion 12. The relative positional relationship between the groove portion 14 and the first laminated portion 11 and the second laminated portion 12 will be described in detail below in combination with FIGS. 3 to 6.

[0113] In an embodiment, referring to FIG. 3, the connecting portion 13 is bent on the side close to the first laminated portion 11, and the groove portion 14 is located at the bending position on the side of the connecting portion 13 close to the first laminated portion 11, and the groove portion 14 is arranged in an interval from the first laminated portion 11, which is beneficial to simplify the setting mode of the groove portion 14 and avoid the setting of the groove portion 14 interfering with the setting of the first laminated portion 11 and the substrate 40.

[0114] In an embodiment, referring to FIG. 5, FIG. 5 shows a sectional view of the display screen module 100 provided by the embodiment of the present application, in which the first laminated portion 11 and the groove portion 14 are in contact, the connecting portion 13 is bent on the side close to the first laminated portion 11, the groove portion 14 is located at the bending position on the side of the connecting portion 13 close to the first laminated portion 11, and the groove portion 14 is in contact with the first laminated portion 11, and the side wall of the first laminated portion 11 close to the connecting portion 13 constitutes the side wall of the groove portion 14, so that the side of the connecting portion 13 connected with the first laminated portion 11 has a small thickness, and the bending starting point of the connecting portion 13 is closer to the side of the first laminated portion 11, which is beneficial to reduce the length of the connecting portion 13 in the second direction (X direction shown in FIG. 5), and further reduce the volume of the connecting portion 13.

[0115] Similarly, the connecting portion 13 can also be bent on the side close to the second laminated portion 12, so that the groove portion 14 is located at the bent portion of the connecting portion 13 on the side close to the second laminated portion 12. When the groove portion 14 and the second laminated portion 12 are spaced apart, the setting mode of the groove portion 14 is relatively simple, which is conducive to avoiding the setting of the groove portion 14 interfering with the setting of the second laminated portion 12 and the substrate 40; when the groove portion 14 and the second laminated portion 12 are connected, the starting point of the bending of the connecting portion 13 is closer to the side of the second laminated portion 12, which is conducive to reducing the length of the connecting portion 13 in the second direction, and further reducing the volume of the connecting portion 13.

[0116] In an embodiment, referring to FIG. 6, FIG. 6 shows a cross-sectional view of a display screen module 100 provided by the embodiment of the present application, in which the first laminated portion 11 and the second laminated portion 12 are both connected with the groove portion 14, the connecting portion 13 is bent on both sides close to the first laminated portion 11 and the second laminated portion 12, and the connecting portion 13 has a first groove portion 141 on the side close to the first laminated portion 11 and a second groove portion 142 on the side close to the second laminated portion 12. The first groove portion 141 is connected with the first laminated portion 11, and the side wall of the side of the first laminated portion 11 close to the connecting portion 13 constitutes the side wall of the first laminated portion 11. The second groove portion 142 is connected with the second laminated portion 12, and the side wall of the side of the second laminated portion 12 close to the connecting portion 13 constitutes the side wall of the second groove portion 142, so that the starting point of the bending of the connecting portion 13 is closer to the first laminated portion 11 and the second laminated portion 12, which is conducive to reducing the length of the connecting portion 13 in the second direction (e.g., the X direction shown in FIG. 6), and further reducing the volume of the connecting portion 13.

[0117] The setting of the groove portion 14 when the extension length of the groove portion 14 is equal to the extension length of the connecting portion 13 will be described in detail below with reference to the embodiment shown in FIG. 7.

[0118] In an embodiment, referring to FIG. 7, FIG. 7 shows a cross-sectional view of a display screen module 100 provided by the embodiment of the present application, in which the extension length of the groove portion 14 is equal to the extension length of the connecting portion 13, the overall thickness of the connecting portion 13 is less than the thickness of the first laminated portion 11, and the overall thickness of the connecting portion 13 is less than the thickness of the second laminated portion 12, so that the side wall of the side of the first laminated portion 11 close to the connecting portion 13 constitutes one of the side walls of the groove portion 14, the side wall of the side of the second laminated portion 12 close to the connecting portion 13 constitutes another side wall of the groove portion 14, and the surface of the connecting portion 13 facing the substrate 40 constitutes the bottom wall of the groove portion 14. The extension length of the groove portion 14 is equal to the length of the connecting portion 13, so that the overall thickness of the connecting portion 13 is relatively small, the stress generated by the bending of the connecting portion 13 is small, the connecting portion 13 can have a large bending degree, which is conducive to reducing the bending radius of the connecting portion 13, and further reducing the volume of the connecting portion 13.

[0119] It can be understood that when the thickness of the connection part 13 as a whole is less than the thickness of the first laminated part 11 and the thickness of the second laminated part 12, the extension length of the groove part 14 can be less than the extension length of the connection part 13, so that the connection part 13 has a smaller thickness at the groove part 14, further reducing the stress generated by the bending of the connection part 13.

[0120] In a possible implementation, referring to FIGS.2 and 3, the substrate 40 further includes a first back film 20 and a second back film 30, the first back film 20 is located between the first laminated part 11 and the substrate 40, and the second back film 30 is located between the substrate 40 and the second laminated part 12, the first back film 20 is used to support the first laminated part 11, and the second back film 30 is used to support the second laminated part 12, thereby ensuring the stability of the positions of the first laminated part 11 and the second laminated part 12. To ensure the stability of the support of the first back film 20 and the second back film 30 on the first laminated part 11 and the second laminated part 12 respectively, the area of the first back film 20 is greater than or equal to the area of the first laminated part 11, and the area of the second back film 30 is greater than or equal to the area of the second laminated part 12.

[0121] The first back film 20 is located between the first laminated part 11 and the substrate 40, and the second back film 30 is located between the substrate 40 and the second laminated part 12, and the connection part 13 is connected with the first laminated part 11 and the second laminated part 12, so that in the second direction (for example, the X direction shown in FIGS.2 and 3), the connection part 13 is located on the same side of the first back film 20, the substrate 40 and the second back film 30.

[0122] The first laminated part 11 and the first back film 20 are arranged in a laminated manner in the first direction (for example, the Z direction shown in FIGS.2 and 3), and in a plane perpendicular to the first direction, the orthographic projection of the first laminated part 11 is located within the orthographic projection range of the first back film 20, and the edge of the first laminated part 11 close to the connection part 13 coincides with the edge of the first back film 20 close to the connection part 13, thereby ensuring that the first laminated part 11 and the first back film 20 have a larger connection area, and further ensuring the stability of the relative position of the first laminated part 11. At the same time, the connection part 13 and the first back film 20 are not arranged in a laminated manner, thereby realizing clear area division between the first laminated part 11 and the connection part 13, and the groove part 14 is located at the connection part 13, thereby avoiding the problem that the groove part 14 is located between the first laminated part 11 and the first back film 20, thereby affecting the connection area of the first laminated part 11 and the first back film 20.

[0123] Similarly, the second layer 12 and the second back film 30 are stacked in the first direction, and the orthographic projection of the second layer 12 is located within the orthographic projection range of the second back film 30 in the plane perpendicular to the first direction. The edge of the second layer 12 close to the connecting portion 13 coincides with the edge of the second back film 30 close to the connecting portion 13, which ensures that the second layer 12 and the second back film 30 have a large connection area, and further ensures the stability of the relative position of the second layer 12. The connecting portion 13 and the second back film 30 are not stacked, which realizes clear area division between the second layer 12 and the connecting portion 13, and the groove portion 14 does not affect the connection stability of the second layer 12 and the second back film 30.

[0124] In an embodiment, referring to FIG. 3, in the second direction, the length of the first layer 11 and the length of the first back film 20 are both L1, and the length of the second layer 12 and the length of the second back film 30 are both L2. The connecting portion 13 is between the first layer 11 and the second layer 12. The length of the first layer 11 can be equal to the length of the second layer 12, so that the structure of the display screen module 100 has better symmetry in the first direction, simplifying the manufacturing of the display screen module 100. Alternatively, the length of the first layer 11 and the length of the second layer 12 can be different, so as to reduce the volume of the display screen module 100 according to actual needs in cooperation with the groove portion 14, and realize a larger screen ratio.

[0125] In an embodiment, referring to FIGS. 2 and 3, the first layer 11 is connected to the first back film 20, the first back film 20 is connected to the substrate 40, and the display screen module 100 further comprises an elastic adhesive layer 50. The elastic adhesive layer 50 is located on the side of the substrate 40 away from the first back film 20, and is located between the substrate 40 and the second back film 30. The surface of the second back film 30 facing away from the elastic adhesive layer 50 is connected to the second layer 12, so that the first layer 11, the first back film 20, the substrate 40, the elastic adhesive layer 50, the second back film 30 and the second layer 12 are sequentially stacked in the first direction. The elastic adhesive layer 50 has adhesion, which is used to bond the substrate 40 and the second back film 30 on both sides of the elastic adhesive layer 50 in the first direction, thereby improving the connection stability of the substrate 40 and the second back film 30. The elastic adhesive layer 50 can deform after being stressed, and also has a buffering function, which can absorb the impact force received by the display screen module 100, thereby ensuring the structural stability of the display screen module 100.

[0126] In a possible implementation, referring to FIG. 8, FIG. 8 shows a sectional view of the display screen module 100 provided by the embodiment of the present application, the first back film 20 has the first groove 21, the first back film 20 includes a main body area and a thinning area, the thinning area is located on a side of the main body area close to the connecting part 13, the thickness of the first back film 20 in the thinning area is smaller than the thickness of the first back film 20 in the main body area, so that the first back film 20 has a smaller thickness on the side close to the connecting part 13, and the first back film 20 is at least partially bent in the thinning area, due to the laminated arrangement of the first laminated part 11 and the first back film 20, so that the first laminated part 11 also has partial bending on the side close to the connecting part 13, and part of the first back film 20 and part of the first laminated part 11 are synchronously bent, the bending starting point of the display panel 10 is closer to the side of the first laminated part 11 away from the connecting part 13, which is conducive to reducing the ratio of the length of the connecting part 13 in the second direction (for example, the X direction shown in FIG. 8) to the total length of the display panel 10 in the second direction, and further improving the screen-to-body ratio.

[0127] Similarly, referring to FIG. 9, FIG. 9 shows a sectional view of the display screen module 100 provided by the embodiment of the present application, the second back film 30 has the second groove 31, the second back film 30 includes a main body area and a thinning area, the thinning area is located on a side of the main body area close to the connecting part 13, the thickness of the second back film 30 in the thinning area is smaller than the thickness of the second back film 30 in the main body area, so that the second back film 30 has a smaller thickness on the side close to the connecting part 13, and the second back film 30 is at least partially bent in the thinning area, due to the laminated arrangement of the second laminated part 12 and the second back film 30, so that the second laminated part 12 also has partial bending on the side close to the connecting part 13, and at least part of the second back film 30 and part of the second laminated part 12 are synchronously bent, the bending starting point of the display panel 10 is closer to the side of the second laminated part 12 away from the connecting part 13, which is conducive to reducing the ratio of the length of the connecting part 13 in the second direction to the total length of the display panel 10 in the second direction (for example, the X direction shown in FIG. 9), and further improving the screen-to-body ratio.

[0128] In an embodiment, referring to FIG. 9, the first back film 20 and the second back film 30 both include a main body area and a thinning area, that is, in the display screen module 100, the first back film 20 has the first groove 21, and the second back film 30 has the second groove 31, so that the first back film 20 and the second back film 30 both have a smaller thickness on the side close to the connecting part 13, part of the first back film 20 and part of the first laminated part 11 are synchronously bent on the side close to the connecting part 13, part of the second back film 30 and part of the second laminated part 12 are synchronously bent on the side close to the connecting part 13, and the bending starting point of the display panel 10 is closer to the side of the first laminated part 11 and the second laminated part 12 away from the connecting part 13, which is conducive to reducing the length of the display panel 10 in the second direction, and further reducing the volume of the display panel 10.

[0129] In one embodiment, referring to FIGS. 8 and 9, the first back film 20 has a first groove 21 on the surface facing the substrate 40, and the first groove 21 has a smaller thickness of the first back film 20, so that the first groove 21 constitutes a thinned area of the first back film 20, which is beneficial to simplify the setting process of the thinned area of the first back film 20. The first groove 21 can be located near the edge of the first back film 20 close to the connecting portion 13, and form a notch at the edge of the first back film 20, so that the first back film 20 has a smaller thickness at the edge, which is convenient for bending the first back film 20. Alternatively, the first groove 21 can be located near the edge of the first back film 20 close to the connecting portion 13, and the first groove 21 and the edge of the first back film 20 close to the connecting portion 13 have a spacing distance, which can also reduce the thickness of the first back film 20 at the edge, and is convenient for bending the first back film 20.

[0130] Similarly, in one embodiment, referring to FIG. 9, the second back film 30 has a second groove 31 on the surface facing the substrate 40, and the second groove 31 has a smaller thickness of the second back film 30, so that the second groove 31 constitutes a thinned area of the second back film 30, which is beneficial to simplify the setting process of the thinned area of the second back film 30. The second groove 31 is located near the edge of the second back film 30 close to the connecting portion 13, and the second groove 31 can form a notch at the edge of the second back film 30, or the second groove 31 and the edge of the second back film 30 close to the connecting portion 13 have a spacing distance, which can also reduce the thickness of the second back film 30 at the edge, and is convenient for bending the second back film 30.

[0131] The shapes of the first groove 21 and the second groove 31 can be the same or different.

[0132] In one embodiment, referring to FIGS. 8 and 9, the first back film 20 has a first groove 21 on the surface facing the substrate 40, and the first groove 21 is a stepped groove, the first groove 21 forms a notch at the edge of the first back film 20, and the thickness of the first back film 20 gradually decreases in the direction of the first back film 20 close to the connecting portion 13, which realizes the smooth transition of the thickness of the first back film 20 on the side close to the connecting portion 13, and is beneficial to guarantee the mechanical strength of the first back film 20 on the side close to the connecting portion 13, and further guarantees the service life of the first back film 20.

[0133] Similarly, in one embodiment, referring to FIG. 9, the second back film 30 has a second groove 31 on the surface facing the substrate 40, and the second groove 31 is a stepped groove, the second groove 31 forms a notch at the edge of the second back film 30, and the thickness of the second back film 30 gradually decreases in the direction of the second back film 30 close to the connecting portion 13, which realizes the smooth transition of the thickness of the second back film 30 on the side close to the connecting portion 13, and is beneficial to guarantee the mechanical strength of the second back film 30 on the side close to the connecting portion 13, and further guarantees the service life of the second back film 30.

[0134] In a possible implementation, as shown in FIGS. 3 and 4, when the positions and the number of the groove portions 14 are changed at the connection portion 13, the shape of the connection portion 13 can also be changed so as to reach the maximum bending degree at the connection portion 13, to reduce the length of the terminal bending area 112 in the display panel 10 in the second direction (for example, the X direction shown in FIGS. 3 and 4) as much as possible, to reduce the occupied space of the terminal bending area 112, and to further facilitate a larger screen-to-body ratio.

[0135] The first layer stack portion 11 extends along the second direction, the first layer stack portion 11 is parallel to the second direction, the first layer stack portion 11 is directly connected with the connection portion 13, and the connection portion 13 is located on one side of the first layer stack portion 11 in the second direction, so that the bending starting point of the display panel 10 is closer to the side of the first layer stack portion 11 in the second direction, which is conducive to reducing the length of the display panel 10 in the second direction, and further reducing the occupied space of the terminal bending area 112. In addition, the first layer stack portion 11 and the connection portion 13 are not spaced apart, so that the problem of increasing the length of the display panel 10 in the second direction due to the occupied space of other structures arranged between the first layer stack portion 11 and the connection portion 13 is avoided.

[0136] The second layer stack portion 12 extends along the second direction, the second layer stack portion 12 is parallel to the second direction, the first layer stack portion 11 and the second layer stack portion 12 are respectively located on the first side and the second side of the substrate 40 in the first direction (for example, the Z direction shown in FIGS. 3 and 4), and the second direction is perpendicular to the first direction, so that the second layer stack portion 12 is parallel to the first layer stack portion 11, which is conducive to simplifying the arrangement process of the display panel 10. Similarly, the second layer stack portion 12 is directly connected with the connection portion 13, and the connection portion 13 is located on one side of the second layer stack portion 12 in the second direction, so that the bending starting point of the display panel 10 is closer to the side of the second layer stack portion 12 in the second direction, which is conducive to reducing the length of the display panel 10 in the second direction, and further reducing the occupied space of the terminal bending area 112.

[0137] In an embodiment, as shown in FIGS. 2 and 3, the connection portion 13 has a single groove portion 14, the single groove portion 14 is located on the side of the connection portion 13 close to the first layer stack portion 11, and the groove portion 14 is spaced apart from the first layer stack portion 11. The connection portion 13 includes a first connection segment 131, a second connection segment 132, and a third connection segment 133 connected in sequence, the first connection segment 131, the second connection segment 132, and the third connection segment 133 all extend along a straight line, the first connection segment 131 is connected with the first layer stack portion 11 and is coplanar with the first layer stack portion 11, the extension direction of the second connection segment 132 and the extension direction of the first connection segment 131 have an included angle, and the groove portion 14 is located between the second connection segment 132 and the first connection segment 131, for reducing the bending stress at the connection between the second connection segment 132 and the first connection segment 131.

[0138] Please refer to FIG. 2 and FIG. 3, in this embodiment, the third connecting segment 133 is connected with the second layer stack 12, and the third connecting segment 133 and the second layer stack 12 are coplanar. Since the second layer stack 12 and the first layer stack 11 are parallel, the third connecting segment 133 is parallel to the first connecting segment 131, the third connecting segment 133 has an included angle with the extension direction of the second connecting segment 132, the included angle between the third connecting segment 133 and the second connecting segment 132 is larger than the included angle between the first connecting segment 131 and the second connecting segment 132, so that the connection part 13 has a larger bending degree at the connection between the first connecting segment 131 and the second connecting segment 132, and the groove part 14 is arranged between the second connecting segment 132 and the first connecting segment 131, which can better reduce the stress at the connection part 13.

[0139] Please refer to FIG. 3, in this embodiment, in order to ensure that the included angle between the third connecting segment 133 and the second connecting segment 132 is larger than the included angle between the first connecting segment 131 and the second connecting segment 132, the length of the first connecting segment 131 in the second direction is larger than the length of the third connecting segment 133 in the second direction, so that the length of the first connecting segment 131 is the maximum length of the connection part 13 in the second direction, which is beneficial to reduce the length of the connection part 13 in the second direction by controlling the length of the first connecting segment 131 in the second direction, to realize the miniaturization of the connection part 13, and further reduce the occupied space of the terminal bending area 112.

[0140] In one embodiment, referring to FIG. 4, the connecting portion 13 has a first groove portion 141 and a second groove portion 142. The first groove portion 141 is located on the side of the connecting portion 13 close to the first laminated portion 11, and the first groove portion 141 is spaced apart from the first laminated portion 11. The second groove portion 142 is located on the side of the connecting portion 13 close to the second laminated portion 12, and the second groove portion 142 is spaced apart from the second laminated portion 12. The connecting portion 13 includes a first connecting segment 131, a second connecting segment 132, and a third connecting segment 133 connected in sequence. The first connecting segment 131, the second connecting segment 132, and the third connecting segment 133 all extend along a straight line. The first connecting segment 131 is connected to and coplanar with the first laminated portion 11. The third connecting segment 133 is connected to and coplanar with the second laminated portion 12. The second connecting segment 132 is parallel to the first direction (the Z direction shown in FIG. 4). The included angle between the first connecting segment 131 and the second connecting segment 132 and the included angle between the third connecting segment 133 and the second connecting segment 132 are both 90 degrees. The first groove portion 141 is located at the connection between the first connecting segment 131 and the second connecting segment 132. The second groove portion 142 is located at the connection between the third connecting segment 133 and the second connecting segment 132. The first groove portion 141 and the second groove portion 142 can both reduce the corresponding stress, so that the stress distribution of the connecting portion 13 is more uniform, which is beneficial to ensuring the mechanical strength of the connecting portion 13.

[0141] Referring to FIG. 4, in this embodiment, the length of the first connecting segment 131 in the second direction is equal to the length of the third connecting segment 133 in the second direction. The length of the first connecting segment 131 and the length of the third connecting segment 133 are the maximum length of the connecting portion 13 in the second direction. This is beneficial to reducing the length of the connecting portion 13 in the second direction by adjusting the length of the first connecting segment 131 and the length of the third connecting segment 133, so as to realize the miniaturization of the connecting portion 13, and further reduce the occupied space of the terminal bending area 112.

[0142] In one embodiment, referring to FIG. 8, the connecting portion 13 has a single groove portion 14. Part of the first back film 20 and part of the first laminated portion 11 close to the side of the connecting portion 13 are bent synchronously. Compared with the case where the first back film 20 and the first laminated portion 11 are parallel to the second direction, the bending of part of the first back film 20 and part of the first laminated portion 11 reduces the length of the first back film 20 and the first laminated portion 11 in the second direction, which is beneficial to reducing the length of the display panel 10 in the second direction. The connecting portion 13 is located on the same side of the first back film 20 and the first laminated portion 11 in the second direction, and the connecting portion 13 is bent to reduce the length of the connecting portion 13 in the second direction, further reducing the length of the display panel 10 in the second direction, and reducing the occupied space of the terminal bending area 112.

[0143] It can be understood that in the embodiments shown in FIG. 3, FIG. 4 and FIG. 8, the connecting portion 13 is not limited to the shape mentioned above, and the shape of the connecting portion 13 should be adjusted according to actual needs so that the connecting portion 13 has a smaller volume. As shown in the embodiments of FIG. 3 and FIG. 4, the second connecting segment 132 can also extend in a bent manner; in the embodiment shown in FIG. 8, the connecting portion 13 can also have a region extending in a partially straight manner. When the shape and size of the recess portion 14 change, the shape of the connecting portion 13 can remain unchanged, as shown in the comparison between the embodiments of FIG. 3 and FIG. 5, and the embodiments of FIG. 4 and FIG. 6; or the shape of the connecting portion 13 can change, as shown in the embodiment of FIG. 7, in which the overall thickness of the connecting portion 13 is smaller, and the bending of the connecting portion 13 enables the connecting portion 13 to have the smallest volume.

[0144] The specific size of the connecting portion 13 will be described below.

[0145] In an embodiment, referring to FIG. 3, FIG. 4 and FIG. 8, the connecting portion 13 is located on one side of the first back film 20 or the second back film 30 in the second direction, and the vertex of the connecting portion 13 away from the first back film 20 or the second back film 30 in the second direction is the endpoint of the display panel 10 in the second direction. The maximum distance between the first back film 20 and the connecting portion 13 in the second direction is 0.1 mm to 0.9 mm; and / or, the maximum distance between the second back film 30 and the connecting portion 13 in the second direction is 0.1 mm to 0.9 mm. By making the length of the connecting portion 13 protruding from the first back film 20 and / or the second back film 30 in the second direction within the above range, it is beneficial to reasonably limit the length of the connecting portion 13 in the second direction, to realize the miniaturization of the connecting portion 13, and thus to reduce the occupied space of the terminal bending area 112.

[0146] In a possible implementation, referring to FIG. 10 and FIG. 11, FIG. 10 shows a structural schematic diagram of a display panel 10 provided by an embodiment of the present application, and FIG. 11 shows a bottom view of the display panel 10 after unfolding of a recess portion 14 being a through slot according to an embodiment of the present application. The connecting portion 13 is bent from a first side to a second side in a first direction (such as the Z direction shown in FIG. 10), the first laminated portion 11 extends along a second direction (such as the X direction shown in FIG. 10 and FIG. 11), the connecting portion 13 is located on one side of the first laminated portion 11 in the second direction, the second direction is perpendicular to the first direction, and the first laminated portion 11 also extends along a third direction (such as the Y direction shown in FIG. 10), the third direction has an included angle with the second direction and the first direction, so that the first laminated portion 11 has a certain volume. Exemplarily, the first direction, the second direction and the third direction are perpendicular to each other, which is beneficial to simplify the display panel 10.

[0147] The recessed portions 14 are uniformly distributed in the third direction to uniformly reduce the inherent volume of the connection portion 13 inside the bending, so that the connection portion 13 reaches a greater bending degree, and the occupied space of the connection portion 13 is reduced. The size and shape of the recessed portions 14 can be set according to actual needs, and the size and shape of the recessed portions 14 will be described in detail below in combination with the embodiments shown in FIGS. 11-13.

[0148] In an embodiment, referring to FIG. 11, the recessed portions 14 are formed as through grooves penetrating in the third direction (Y direction shown in FIG. 11), which is perpendicular to the depth direction of the recessed portions 14 and the first direction. In the third direction, the depth of the recessed portions 14 is consistent, which is beneficial to simplify the setting of the recessed portions 14 and uniformly reduce the inherent volume of the connection portion 13 inside the bending, so that the connection portion 13 reaches a greater bending degree, and the occupied space of the connection portion 13 is reduced.

[0149] In an embodiment, referring to FIG. 12, FIG. 12 shows a bottom view of the unfolded display panel 10 provided by the embodiments of the present application, and the at least two recessed portions 14 are parallel. The recessed portions 14 are through grooves penetrating in the third direction (Y direction shown in FIG. 12), and the number of the recessed portions 14 is at least two. The at least two recessed portions 14 are arranged in parallel to uniformly reduce the inherent volume of the connection portion 13 inside the bending, so that the connection portion 13 reaches a greater bending degree, the occupied space of the connection portion 13 is reduced, and the area where the thickness of the connection portion 13 is small is avoided to be too large, which is beneficial to ensure the mechanical strength of the connection portion 13 at the setting position of the recessed portions 14.

[0150] In an embodiment, referring to FIG. 13, FIG. 13 shows a bottom view of the unfolded display panel 10 provided by the embodiments of the present application, and the at least two recessed portions 14 are arranged at intervals. The recessed portions 14 are grooves, and the number of the recessed portions 14 is at least two. The at least two recessed portions 14 are arranged in sequence at intervals on the same straight line parallel to the third direction (Y direction shown in FIG. 13) to uniformly reduce the inherent volume of the connection portion 13 inside the bending, so that the connection portion 13 reaches a greater bending degree, the occupied space of the connection portion 13 is reduced, and the area where the thickness of the connection portion 13 is small is avoided to be too large, which is beneficial to ensure the mechanical strength of the connection portion 13 at the setting position of the recessed portions 14.

[0151] In an embodiment, referring to FIG. 11 and FIG. 14, FIG. 14 shows a front view of the display panel 10 after unfolding in the embodiment shown in FIG. 11. The depth of the recessed portion 14 is h, the thickness of the display panel 10 is H, and the recessed portion 14 and the display panel 10 satisfy the relationship: h≤2 / 3H. By making the recessed portion 14 and the display panel 10 satisfy the above relationship, the depth of the recessed portion 14 is reasonably set, the reduction of the bending inner volume of the connecting portion 13 by the recessed portion 14 is ensured, the connecting portion 13 can achieve a greater bending degree, and the occupied space of the connecting portion 13 is reduced; at the same time, the depth of the recessed portion 14 is avoided to be too large, the mechanical strength of the connecting portion 13 at the setting position of the recessed portion 14 is ensured, and the service life of the connecting portion 13 is further ensured.

[0152] In an embodiment, referring to FIG. 11 and FIG. 14, the width of the recessed portion 14 is w, and the recessed portion 14 satisfies the relationship: w≤2mm. By making the recessed portion 14 satisfy the above relationship, the width of the recessed portion 14 is reasonably set, the area of the region with smaller thickness of the connecting portion 13 is reasonably set, the setting process of the recessed portion 14 is simplified, the mechanical strength of the connecting portion 13 at the setting position of the recessed portion 14 is ensured, and the service life of the connecting portion 13 is further ensured.

[0153] In a possible implementation, referring to FIG. 1, FIG. 2 and FIG. 15, FIG. 15 shows a structural schematic diagram of the display screen module 100 provided by the embodiment of the present application, in which the reinforcing portion 62 connects the first metal wire 611 and the second metal wire 612. The display screen module 100 further includes a metal wire 60, which is located on the side of the display panel 10 away from the substrate 40. In an embodiment, referring to FIG. 15, the metal wire 60 is directly connected with the surface of the display panel 10 away from the substrate 40.

[0154] The metal wire 60 is distributed on the side of the first laminated portion 11 away from the substrate 40, the side of the connecting portion 13 away from the substrate 40, and the side of the second laminated portion 12 away from the substrate 40. The metal wire 60 includes a wire portion 61 and a reinforcing portion 62. The reinforcing portion 62 is located on the side of the connecting portion 13 away from the substrate 40, and the reinforcing portion 62 and the recessed portion 14 are oppositely arranged on the connecting portion 13, i.e., the reinforcing portion 62 and the recessed portion 14 are respectively located on the opposite sides of the connecting portion 13 in the thickness direction thereof. The wire portion 61 is located on the side of the first laminated portion 11 and the second laminated portion 12 away from the substrate 40, and part of the wire portion 61 can be located on the side of the connecting portion 13 away from the substrate 40, so that the metal wire 60 is continuously distributed on the side of the display panel 10 away from the substrate 40, and the substrate 40 has the metal wire 60 on the first side and the second side in the first direction (e.g., the Z direction shown in FIG. 15), which facilitates the subsequent electrical connection between the display screen module 100 and the circuit board 210 through the metal wire 60.

[0155] The display panel 10 is bent at the connecting portion 13, the metal wire 60 is bent synchronously with the bending of the display panel 10, the connecting portion 13 has a large bending degree at the position where the groove portion 14 is arranged, so that the metal wire 60 has a large bending degree at the reinforcing portion 62 arranged opposite to the groove portion 14, the thickness of the reinforcing portion 62 is greater than or equal to the thickness of the circuit portion 61, which is beneficial to guarantee the mechanical strength of the metal wire 60 at the reinforcing portion 62, and further guarantee the service life of the metal wire 60, so as to avoid that the metal wire 60 is easily broken by force at the reinforcing portion 62.

[0156] In an embodiment, referring to FIG. 15 and FIG. 16, FIG. 16 shows a sectional view of the display screen module 100 at B-B in the embodiment shown in FIG. 15, the circuit portion 61 includes a first metal wire 611 and a second metal wire 612, the first metal wire 611 is located on the side of the first laminated portion 11 away from the substrate 40, the first metal wire 611 and the first laminated portion 11 are laminated, part of the second metal wire 612 is located on the side of the connecting portion 13 away from the substrate 40, and the part of the second metal wire 612 and the connecting portion 13 are laminated, another part of the second metal wire 612 is located on the side of the second laminated portion 12 away from the substrate 40, and the part of the second metal wire 612 and the second laminated portion 12 are laminated, so that the metal wire 60 is distributed on the first side and the second side of the display panel 10 in the first direction (such as the Z direction shown in FIG. 15 and FIG. 16), that is, the display screen module 100 has the metal wire 60 on both sides of the display surface 110 and the mounting surface 120, which is convenient for the display screen module 100 and the circuit board 210 to be electrically connected through the metal wire 60.

[0157] Referring to FIG. 16, in this embodiment, there is a gap between the first metal wire 611 and the second metal wire 612, the gap is arranged opposite to the groove portion 14, the reinforcing portion 62 is located at the gap between the first metal wire 611 and the second metal wire 612, and the reinforcing portion 62 connects the first metal wire 611 and the second metal wire 612, so that the first metal wire 611, the reinforcing portion 62 and the second metal wire 612 can be electrically connected. At the same time, since the gap between the first metal wire 611 and the second metal wire 612 is arranged opposite to the groove portion 14, the reinforcing portion 62 is arranged opposite to the groove portion 14, the reinforcing portion 62 is located in the region where the connecting portion 13 has a large bending degree, the thickness of the reinforcing portion 62 is greater than or equal to the thickness of the circuit portion 61, so that the metal wire 60 has a large mechanical strength at the reinforcing portion 62, that is, the mechanical strength of the metal wire 60 and the groove portion 14 corresponding position is guaranteed; the material of the reinforcing portion 62 and the material of the circuit portion 61 can be different, so that the reinforcing portion 62 has a larger mechanical strength than the circuit portion 61, which is beneficial to guarantee the service life of the metal wire 60, and avoid that the metal wire 60 is easily broken by force at the reinforcing portion 62.

[0158] Exemplarily, refer to FIG. 17, which shows a structural schematic diagram of the display module 100 provided by the embodiment of the present application and having the first widened portion 613 and the second widened portion 614. The first metal wire 611 has the first widened portion 613 near one end of the second metal wire 612, and the second metal wire 612 has the second widened portion 614 near one end of the first metal wire 611, so that the one end of the first metal wire 611 near the second metal wire 612 has a larger volume, and the one end of the second metal wire 612 near the first metal wire 611 has a larger volume, which is beneficial to simplify the connection process of the reinforcing portion 62 and the first metal wire 611 and the second metal wire 612, and improve the connection yield of the reinforcing portion 62 and the first metal wire 611 and the second metal wire 612. The shapes and sizes of the first widened portion 613 and the second widened portion 614 can be the same or different. The shape of the first widened portion 613 or the second widened portion 614 includes but is not limited to a rectangle, a triangle, and a circle.

[0159] In an embodiment, refer to FIG. 18 and FIG. 19, FIG. 18 shows a structural schematic diagram of the display module 100 provided by the embodiment of the present application and having the reinforcing portion 62 covering the line portion 61, and FIG. 19 shows a sectional view of the display module 100 at C-C in the embodiment shown in FIG. 18. The line portion 61 extends from the first laminated portion 11 to the connecting portion 13 and the second laminated portion 12 in sequence, so that the line portion 61 is distributed on the side of the first laminated portion 11, the connecting portion 13, and the second laminated portion 12 away from the substrate 40, which ensures that the metal wire 60 is distributed on the first side and the second side of the display panel 10 in the first direction (Z direction shown in FIG. 18 and FIG. 19), and further ensures that the display module 100 and the circuit board 210 are electrically connected through the metal wire 60.

[0160] Refer to FIG. 19, in this embodiment, since part of the line portion 61 is located on the side of the connecting portion 13 away from the substrate 40, the part of the line portion 61 is oppositely arranged with the groove portion 14 on the connecting portion 13. The reinforcing portion 62 covers the line portion 61, and the reinforcing portion 62 is located on the side of the line portion 61 away from the connecting portion 13. The reinforcing portion 62 corresponds to the groove portion 14, and the reinforcing portion 62 has a certain thickness. The total thickness of the metal wire 60 at the position of the reinforcing portion 62 is the sum of the thickness of the reinforcing portion 62 and the thickness of the line portion 61, which is beneficial to improve the mechanical strength of the metal wire 60 at the position of the reinforcing portion 62. The part of the metal wire 60 oppositely arranged with the groove portion 14 has a larger mechanical strength, which further ensures the service life of the metal wire 60 and avoids the metal wire 60 from being easily broken at the reinforcing portion 62.

[0161] In a possible implementation, referring to FIG. 20, FIG. 20 shows a cross-sectional view of the display module 100 provided by the embodiments of the present application, the display module 100 further comprises a protective layer 70, the protective layer 70 is located on the side of the display panel 10 away from the substrate 40, the material of the protective layer 70 comprises at least one of acrylic resin, epoxy resin, silicone resin, and polyurethane, and the protective layer 70 is used to protect the display panel 10. In an embodiment, referring to FIG. 20, the metal wire 60 is embedded in the protective layer 70, and the protective layer 70 is also used to protect the metal wire 60 to avoid the metal wire 60 from being broken after being impacted.

[0162] After the protective layer 70 is arranged on the side of the display panel 10 away from the substrate 40, the display panel 10 is connected with the back film and the substrate 40 on the side of the display panel 10 facing the substrate 40, and the display panel 10 is connected with the metal wire 60 and the protective layer 70 on the side of the display panel 10 away from the substrate 40, so that the thicknesses of the structures connected on both sides of the display panel 10 are equivalent, the stress on the display panel 10 is moved to the side of the display panel 10 away from the substrate 40, and the stress on the display panel 10 is avoided from being concentrated on the side of the display panel 10 facing the substrate 40, which is beneficial to ensure that the display panel 10 is uniformly stressed and improve the service life of the display panel 10.

[0163] The surface of the protective layer 70 away from the display panel 10 has a third groove 71, the third groove 71 can reduce the stress generated by the bending of the protective layer 70, and avoid that the arrangement of the protective layer 70 affects the bending of the display panel 10. The third groove 71 and the groove portion 14 are arranged alternately, that is, in the thickness direction of the display panel 10, the third groove 71 and the groove portion 14 do not correspond to each other, so that the thicknesses of the structures connected on both sides of the display panel 10 are equivalent, and the effect of balancing the stress on both sides of the display panel 10 by the arrangement of the protective layer 70 is ensured.

[0164] In a possible implementation, referring to FIG. 20, the substrate 40, the first laminated portion 11, the connecting portion 13, and the second laminated portion 12 jointly enclose a containing space, the display module 100 further comprises a filler 80, and the containing space is filled with the filler 80, at least part of the filler 80 fills the groove portion 14, which is beneficial to ensure the mechanical strength of the display panel 10 at the arrangement position of the groove portion 14, and further ensure the use stability and service life of the display module 100. The material of the filler 80 comprises at least one of acrylic resin, epoxy resin, silicone resin, and polyurethane, and the material of the filler 80 can be the same as that of the protective layer 70.

[0165] The application further provides a preparation method of the display module 100, which is used for preparing the display module 100 in any of the above embodiments. Please refer to FIG. 21, which shows a flow chart of the preparation method of the display module 100 according to the embodiment of the application. The preparation method of the display module 100 comprises the following steps:

[0166] Step S10: placing the first laminated part 11 of the display panel 10 on the first side of the substrate 40 in the first direction, wherein the display panel 10 comprises the first laminated part 11, the connecting part 13 and the second laminated part 12, the connecting part 13 is connected between the first laminated part 11 and the second laminated part 12, and the connecting part 13 is formed with the groove part 14;

[0167] Step S20: bending the connecting part 13 so that the second laminated part 12 is located on the second side of the substrate 40 in the first direction, and the groove part 14 is located at the concave surface of the connecting part 13 facing the substrate 40.

[0168] In an embodiment, please refer to FIG. 21 and FIG. 22, which shows a flow chart of the preparation method of the display module 100 in which the reinforcing part 62 is connected to the circuit part 61 according to the embodiment of the application. Step S10 comprises step S11 and step S12.

[0169] Step S11: connecting the first back film 20 and the second back film 30 to the same surface of the display panel 10, wherein the display panel 10 comprises the first laminated part 11, the connecting part 13 and the second laminated part 12, the connecting part 13 is connected between the first laminated part 11 and the second laminated part 12, the first back film 20 is connected to the first laminated part 11, the second back film 30 is connected to the second laminated part 12, and the connecting part 13 is formed with the groove part 14;

[0170] Step S12: placing the first laminated part 11 of the display panel 10 on the first side of the substrate 40 in the first direction, so that the first back film 20 is located between the first laminated part 11 and the substrate 40.

[0171] Correspondingly, please refer to FIG. 24 and FIG. 25, which shows the front view of the display module 100 before being bent according to the embodiment of the application, and FIG. 25 shows the front view of the display module 100 after the display panel 10 is bent in the embodiment shown in FIG. 24. After the step S20 of “bending the connecting part 13”, the step S20 further comprises: the second back film 30 is located between the substrate 40 and the second laminated part 12.

[0172] Please refer to FIG. 24, before the display panel 10 is bent, the first back film 20 and the second back film 30 correspond to the first laminated part 11 and the second laminated part 12 respectively, and the connecting part 13 is arranged between the first laminated part 11 and the second laminated part 12, so that the first back film 20 and the second back film 30 are arranged in a spaced manner, and the first back film 20, the second back film 30 and the groove part 14 are located on the same side of the display panel 10 in the thickness direction thereof. Please refer to FIG. 25, after the display panel 10 is bent, the first back film 20 is located between the first laminated part 11 and the substrate 40, and the second back film 30 is located between the substrate 40 and the second laminated part 12, the first back film 20 is used to support the first laminated part 11, and the second back film 30 is used to support the second laminated part 12, which is beneficial to improve the mechanical strength and position stability of the first laminated part 11 and the second laminated part 12.

[0173] In an embodiment, please refer to FIG. 21 and FIG. 22, the step S10 further comprises a step S13.

[0174] The step S13: connecting the elastic adhesive layer 50 and the substrate 40, so that the substrate 40 is located between the elastic adhesive layer 50 and the first back film 20.

[0175] Correspondingly, please refer to FIG. 24 and FIG. 25, after the step S20 of bending the connecting part 13, the step S20 further comprises: the elastic adhesive layer 50 is located between the substrate 40 and the second back film 30.

[0176] Please refer to FIG. 24, before the display panel 10 is bent, the elastic adhesive layer 50 is located on the second side of the substrate 40 in the first direction, and the elastic adhesive layer 50 corresponds to the first laminated part 11 only. Please refer to FIG. 25, after the display panel 10 is bent, the elastic adhesive layer 50 is located between the substrate 40 and the second back film 30, the elastic adhesive layer 50 has adhesion, and is used to bond the substrate 40 and the second back film 30 on both sides thereof in the first direction, so as to improve the connection stability of the substrate 40 and the second back film 30, the elastic adhesive layer 50 can be deformed after being stressed, and also has the function of buffering, can absorb the impact force received by the display screen module 100, and ensure the structural stability of the display screen module 100.

[0177] It can be understood that the preparation method of the display screen module 100 provided in the embodiment is used to prepare the display screen module 100 in the above-mentioned embodiments, and therefore the preparation method of the display screen module 100 in the embodiment has all the technical effects of the display screen module 100 in the above-mentioned embodiments. Since the technical effects of the display screen module 100 have been fully described in the above-mentioned embodiments, they will not be repeated here.

[0178] In a possible implementation, referring to FIG. 24 and FIG. 25, the display module 100 includes a circuit portion 61, the circuit portion 61 includes a first metal line 611 and a second metal line 612, the first metal line 611 is located at the first laminated portion 11, part of the second metal line 612 is located at the connecting portion 13, and the first metal line 611 and the second metal line 612 have a gap therebetween, and the gap is located opposite to the groove portion 14.

[0179] Referring to FIG. 21 and FIG. 22, the preparation method of the display module 100 includes a step S30, the step S30 is after the step S20.

[0180] The step S30: forming a reinforcing portion 62 on the side of the display panel 10 away from the substrate 40, the reinforcing portion 62 connects the first metal line 611 and the second metal line 612, and the reinforcing portion 62 is located opposite to the groove portion 14.

[0181] Referring to FIG. 16 and FIG. 25, when the display panel 10 is bent, the display panel 10 has a larger bending degree at the groove portion 14, if the first metal line 611 and the second metal line 612 are connected before bending, the first metal line 611 and the second metal line 612 will generate a larger tensile force at the connection position of the first metal line 611 and the second metal line 612 after the display panel 10 is bent, which will cause the connection position of the first metal line 611 and the second metal line 612 to be easily broken. By having a gap between the first metal line 611 and the second metal line 612, and connecting the first metal line 611 and the second metal line 612 by the reinforcing portion 62 after the display panel 10 is bent, it is beneficial to set the reinforcing portion 62 according to the shape of the display panel 10 at the gap, which ensures the mechanical strength of the metal line 60 at the reinforcing portion 62, and further ensures the service life of the metal line 60.

[0182] In an embodiment, the reinforcing portion 62 is set by metal printing, so that the reinforcing portion 62 more accurately connects the first metal line 611 and the second metal line 612.

[0183] In a possible implementation, referring to FIG. 19, the display module 100 includes a circuit portion 61, the circuit portion 61 extends from the first laminated portion 11 to the connecting portion 13 and the second laminated portion 12 in sequence.

[0184] Referring to FIG. 21 and FIG. 23, the preparation method of the display module 100 includes a step S40, the step S40 is after the step S20.

[0185] The step S40: forming a reinforcing portion 62 on the side of the display panel 10 away from the substrate 40, the reinforcing portion 62 covers the circuit portion 61, and the reinforcing portion 62 is located opposite to the groove portion 14.

[0186] Please refer to FIG. 18 and FIG. 19, when the display panel 10 is bent, the display panel 10 has a large bending degree at the groove portion 14. When the display panel 10 is bent, a large tensile force is generated in the area opposite to the groove portion 14 of the circuit portion 61, which causes the circuit portion 61 in the area to be easily broken. By covering the circuit portion 61 with the reinforcing portion 62 and arranging the reinforcing portion 62 opposite to the groove portion 14, the area opposite to the groove portion 14 of the metal wire 60 has both the circuit portion 61 and the reinforcing portion 62, the thickness of the area opposite to the groove portion 14 of the metal wire 60 is increased, the mechanical strength of the area opposite to the groove portion 14 of the metal wire 60 is increased, and the service life of the metal wire 60 is ensured.

[0187] In a possible implementation, please refer to FIG. 24, FIG. 25 and FIG. 26, FIG. 26 shows a right view of the display screen module 100 provided with the filling layer 90 in the embodiment shown in FIG. 24, and step S10 further includes step S14.

[0188] Step S14: forming the filling layer 90 on the side of the display panel 10 away from the substrate 40, and the filling layer 90 is formed with the filling groove 91, so that the circuit portion 61 is exposed from the filling groove 91.

[0189] Please refer to FIG. 26, the filling layer 90 is arranged on the first side of the first layer stack 11 in the first direction (for example, the Z direction shown in FIG. 26), so that the filling layer 90 and the circuit portion 61 are both located on the first side of the first layer stack 11 in the first direction. The filling layer 90 is arranged with the filling groove 91, and the circuit portion 61 is exposed from the filling groove 91. When the reinforcing portion 62 is arranged, the arrangement position of the reinforcing portion 62 corresponds to the filling groove 91, which is beneficial to simplify the arrangement mode of the reinforcing portion 62.

[0190] In a possible implementation, please refer to FIG. 27 and FIG. 28, FIG. 27 shows a front view of the display screen module 100 before being bent, which is provided with the first groove 21 according to the embodiment of the present application, and FIG. 28 shows a front view of the display screen module 100 after the display panel 10 is bent according to the embodiment shown in FIG. 27. Step S10 includes step S11 and step S12.

[0191] Step S11: connecting the first back film 20 and the second back film 30 with the same surface of the display panel 10, wherein the display panel 10 includes the first layer stack 11, the connecting portion 13 and the second layer stack 12, the connecting portion 13 is connected between the first layer stack 11 and the second layer stack 12, the first back film 20 is connected with the first layer stack 11, and the second back film 30 is connected with the second layer stack 12. The connecting portion 13 is formed with the groove portion 14, and the first back film 20 is formed with the first groove 21.

[0192] Step S12: Place the first laminated portion 11 of the display panel 10 on the first side of the substrate 40 in the first direction, with the first back film 20 between the first laminated portion 11 and the substrate 40.

[0193] Please refer to FIG. 27, before the display panel 10 is bent, the first recess 21 is arranged on the surface of the first back film 20 facing the substrate 40, the first recess 21 is located on the side of the first back film 20 close to the connecting portion 13, the first recess 21 is a stepped groove, and the first recess 21 forms a gap at the edge of the first back film 20, so that the thickness of the first back film 20 gradually decreases in the direction close to the connecting portion 13, which realizes the smooth transition of the thickness of the first back film 20 on the side close to the connecting portion 13, and is beneficial to guarantee the mechanical strength of the first back film 20 on the side close to the connecting portion 13. Please refer to FIG. 28, after the display panel 10 is bent, the partial first back film 20 and the partial first laminated portion 11 on the side close to the connecting portion 13 are bent synchronously with the connecting portion 13, because the first back film 20, the first laminated portion 11 and the connecting portion 13 are all bent, so that the display panel 10 has a relatively gentle bending degree, the metal wire 60 bears a smaller tensile force, the metal wire 60 has sufficient mechanical strength, and it is not necessary to arrange the reinforcing portion 62 to strengthen the mechanical strength of the metal wire 60, which is beneficial to simplify the process flow, improve the production efficiency and reduce the production cost.

[0194] The application further provides an electronic device 200, please refer to FIG. 1 and FIG. 2, the electronic device 200 includes a circuit board 210 and the display screen module 100 prepared by the display screen module 100 or the preparation method of the display screen module 100 according to any one of the above embodiments, and the circuit board 210 and the display screen module 100 are electrically connected.

[0195] It can be understood that the electronic device 200 in the embodiment has the display screen module 100 in the above embodiments, and therefore the electronic device 200 in the embodiment has all the technical effects of the display screen module 100 in the above embodiments. Since the technical effects of the display screen module 100 have been fully described in the above embodiments, they will not be repeated here.

[0196] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit it; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A display screen module, characterized by The display panel comprises a first laminated portion, a connecting portion and a second laminated portion, the first laminated portion is located on a first side of the substrate in a first direction, the second laminated portion is located on a second side of the substrate in the first direction, the connecting portion is connected to the first laminated portion and at least partially bends towards the second side of the substrate to connect the second laminated portion, and a groove portion is formed on the connecting portion towards the concave surface of the substrate. The groove portion is located on a side of the connecting portion close to the first laminated portion, and a side wall of the first laminated portion close to the connecting portion constitutes a side wall of the groove portion; and / or The groove portion is located on a side of the connecting portion close to the second laminated portion, and a side wall of the second laminated portion close to the connecting portion constitutes a side wall of the groove portion.

2. The display module of claim 1, wherein, The thickness of the connecting portion is smaller than the thickness of the first laminated portion and the thickness of the second laminated portion. The display substrate further comprises a first back film and a second back film, the first back film is located between the first laminated portion and the substrate, the first laminated portion and the first back film are laminated, and the second back film is located between the substrate and the second laminated portion, the second laminated portion and the second back film are laminated.

3. The display module of claim 1 or 2, wherein, The first back film comprises a main area and a thinning area, the thinning area is located on a side of the main area close to the connecting portion, the thickness of the first back film in the thinning area is smaller than the thickness of the first back film in the main area, and the first back film at least partially bends in the thinning area; and / or 4. The display module of any one of claims 1 to 3, wherein, The second back film comprises a main area and a thinning area, the thinning area is located on a side of the main area close to the connecting portion, the thickness of the second back film in the thinning area is smaller than the thickness of the second back film in the main area, and the second back film at least partially bends in the thinning area.

5. The display module of claim 4, wherein, The surface of the first back film towards the substrate has a first groove, and the first groove constitutes the thinning area; and / or The surface of the second back film towards the substrate has a second groove, and the second groove constitutes the thinning area.

6. The display module of claim 5, wherein, The first laminated portion extends along a second direction and is connected to the connecting portion, the second direction is perpendicular to the first direction, and the maximum distance between the first back film and the connecting portion in the second direction is 0.1mm to 0.9mm; and / or The second laminated portion extends along a second direction and is connected to the connecting portion, and the maximum distance between the second back film and the connecting portion in the second direction is 0.1mm to 0.9mm.

7. The display module of any of claims 4 to 6, wherein the display module further comprises a display screen. The groove portion is formed as a through groove penetrating in a third direction, the third direction is perpendicular to the depth direction of the groove portion and the first direction. The number of groove portions is at least two, and at least two groove portions are arranged in parallel.

8. The display module of any one of claims 1 to 7, wherein, The depth of the groove portion is smaller than or equal to 2 / 3 of the thickness of the display panel.

9. The display module of claim 8, wherein, The width of the groove portion is smaller than or equal to 2mm.

10. The display module of any one of claims 1 to 9, wherein, ​ 11. The display module of any of claims 1 to 9, wherein, ​ 12. The display module of any one of claims 1 to 11, wherein, The display screen module further comprises a metal wire, the metal wire is located on the side of the display panel away from the substrate, the metal wire comprises a wire part and a reinforcing part, the reinforcing part is oppositely arranged with the groove part on the connecting part, and the thickness of the reinforcing part is greater than or equal to the thickness of the wire part.

13. The display module of claim 12, wherein, The wire part extends from the first laminated part to the connecting part and the second laminated part in sequence, and the reinforcing part covers the wire part oppositely arranged with the groove part.

14. The display module of claim 12, wherein, The wire part comprises a first metal wire and a second metal wire, the first metal wire is located on the first laminated part, part of the second metal wire is located on the connecting part, and there is a gap between the first metal wire and the second metal wire, the gap is oppositely arranged with the groove part, and the reinforcing part connects the first metal wire and the second metal wire.

15. The display module of any of claims 1 to 14, wherein, The display screen module further comprises a protective layer, the protective layer is located on the side of the display panel away from the substrate, the surface of the protective layer away from the display panel has a third groove, and the third groove and the groove part are staggered.

16. The display module of any one of claims 1 to 15, wherein, The substrate, the first laminated part, the connecting part and the second laminated part jointly enclose a containing space, and the containing space is filled with a filling piece, and at least part of the filling piece fills the groove part.

17. A method for manufacturing a display module, for manufacturing a display module according to any one of claims 1 to 16, characterized in that The preparation method comprises: placing a first laminated part of a display panel on a first side of a substrate in a first direction, wherein the display panel comprises the first laminated part, a connecting part and a second laminated part, the connecting part is connected between the first laminated part and the second laminated part, and the connecting part is formed with a groove part; bending the connecting part so that the second laminated part is located on a second side of the substrate in the first direction, and the groove part is located at a concave surface of the connecting part facing the substrate.

18. The method of claim 17, wherein the display module is prepared by the steps of: The display screen module comprises a wire part, the wire part comprises a first metal wire and a second metal wire, the first metal wire is located on the first laminated part, part of the second metal wire is located on the connecting part, and there is a gap between the first metal wire and the second metal wire, the gap is oppositely arranged with the groove part; ​ After the step of "bending the connecting part so that the second laminated part is located on a second side of the substrate in the first direction, and the groove part is located at a concave surface of the connecting part facing the substrate", the preparation method further comprises: forming a reinforcing part on the side of the display panel away from the substrate, the reinforcing part connects the first metal wire and the second metal wire, and the reinforcing part and the groove part are oppositely arranged.

19. The method for manufacturing a display module according to claim 17, characterized in that, The display screen module comprises a wire part, the wire part extends from the first laminated part to the connecting part and the second laminated part in sequence; After the step of "bending the connecting part so that the second laminated part is located on a second side of the substrate in the first direction, and the groove part is located at a concave surface of the connecting part facing the substrate", the preparation method further comprises: forming a reinforcing part on the side of the display panel away from the substrate, the reinforcing part covers the wire part, and the reinforcing part and the groove part are oppositely arranged.

20. The method of claim 18 or 19, wherein the display module is prepared by the steps of: After the step of "placing the first laminated part of the display panel on the first side of the substrate in the first direction", the preparation method further comprises: ​ A filling layer is formed on the side of the display panel away from the substrate, the filling layer is formed with a filling groove, and the circuit part is exposed from the filling groove.

21. An electronic device, comprising: A display screen module prepared by the preparation method of any one of claims 17 to 20, and a circuit board, wherein the circuit board and the display screen module are electrically connected.

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