Patent Publication Number: US-2022224369-A1

Title: Electronic Device, Screen Assembly, and Screen Protection Member and Manufacturing Method Thereof

Description:
This application claims priority to Chinese Patent Application No. 201910418353.6, filed with the China National Intellectual Property Administration on May 20, 2019 and entitled “ELECTRONIC DEVICE, SCREEN ASSEMBLY, AND SCREEN PROTECTION MEMBER AND MANUFACTURING METHOD THEREOF”, and claims priority to Chinese Patent Application No. 201910436599.6, filed with the China National Intellectual Property Administration on May 23, 2019 and entitled “ELECTRONIC DEVICE, SCREEN ASSEMBLY, AND SCREEN PROTECTION MEMBER AND MANUFACTURING METHOD THEREOF”, which are incorporated herein by reference in their entireties. 
     TECHNICAL FIELD 
     Embodiments of this application relate to the technical field of foldable apparatuses, and in particular, to an electronic device, a screen assembly, and a screen protection member and a manufacturing method thereof. 
     BACKGROUND 
     To pursue a larger display area and a higher screen-to-body ratio, a bar-type electronic device is continuously evolving into a foldable electronic device (for example, a foldable smartphone). The foldable electronic device includes a foldable frame and a flexible screen fixed to one side of the frame, and the flexible screen can be unfolded and folded with the frame. However, in a process of assembling the flexible screen of the foldable electronic device, the flexible screen needs to be tensioned first, and then the flexible screen in a tensioned state is fastened to a planar outer frame of the electronic device in a surface-to-surface bonding manner. Consequently, an assembling process of the flexible screen is cumbersome. 
     SUMMARY 
     Embodiments of this application provide a screen protection member, a screen assembly, and an electronic device that can improve assembly convenience, and further provide a method for manufacturing a screen protection member. 
     According to a first aspect, an embodiment of this application provides a screen protection member. The screen protection member may be applied to a screen assembly, to protect a flexible display panel of the screen assembly. The screen protection member includes a protection film and a frame. The protection film includes a bonding surface. The frame is fastened to a peripheral region of the bonding surface by surrounding the peripheral region. The frame has at least one notch group. A single notch group includes two notches that are disposed opposite to each other. The at least one notch group divides the frame into at least two frame parts that are spaced apart from each other. In this case, the at least two frame parts of the frame are separated from each other by the notch group and can move relative to each other, for example, can be folded relative to each other and unfolded relative to each other, so that the screen protection member can bend by using a position at which the notch group is located, and the screen assembly to which the screen protection member is applied can be folded and unfolded. 
     In this embodiment, the frame can stably support the protection film, so that the screen protection member can maintain good flatness. In this case, the screen assembly to which the screen protection member is applied can also maintain good flatness. Therefore, in an electronic device to which the screen assembly is applied, the screen assembly can be assembled by using a mounting procedure (for example, snap-fit) between a rigid frame and another rigid component (for example, a housing assembly) of the electronic device, to replace a conventional tension step and a conventional surface-to-surface bonding step of a flexible screen. Therefore, the mounting procedure between the rigid structures is simple with a low difficulty, and has a low requirement for devices and processes, so that assembly convenience of an assembly process of the entire electronic device is higher. 
     The protection film may be flexible. The frame may be rigid. Flexibility of the protection film and rigidity of the frame are relative. Strength of the protection film is far less than strength of the frame. In this application, the protection film easily bends when subject to force, and the frame does not easily bend when subject to force. 
     In an optional embodiment, the frame includes a first frame body and a second frame body and a third frame body that are opposite to each other and located on two sides of the first frame body. The first frame body includes a straight segment and a first bending segment and a second bending segment that are connected to two ends of the straight segment. One notch in each notch group is located on the straight segment. Both the first bending segment and the second bending segment bend toward a side that is of the straight segment and that is away from the protection film. The second frame body straightly extends and one end of the second frame body is connected to the first bending segment. The third frame body straightly extends and one end of the third frame body is connected to the second bending segment. 
     In this embodiment, the straight segment of the first frame body and the second frame body are connected by using the first bending segment, to be located in different planes, and the straight segment of the first frame body and the third frame body are connected by using the second bending segment, to be located in different planes. The frame is in a three-dimensional structure. In this way, a part that is of the protection film and that is fastened to the straight segment of the first frame body and parts of the protection film that are fastened to the second frame body and the third frame body are located in different planes. The parts of the protection film that are fastened to the second frame body and the third frame body bend relative to the part that is of the protection film and that is fastened to the straight segment of the first frame body. Therefore, the screen protection member has a three-dimensional structure. The three-dimensional structure includes a middle planar region and bending regions on edges on two sides, so that the screen assembly and the electronic device have two smooth side edges, and have better appearance experience and handholding experience. 
     The frame further includes a fourth frame body disposed opposite to the first frame body. The fourth frame body is connected between an end that is of the second frame body and that is away from the first frame body and an end that is of the third frame body and that is away from the first frame body. The fourth frame body includes a straight segment and two bending segments connected to two ends of the straight segment. The two bending segments are respectively connected to the second frame body and the third frame body. The other notch in each notch group is located on the straight segment of the fourth frame body. 
     The straight segment of the fourth frame body and the straight segment of the first frame body may be located in a same plane. The second frame body and the third frame body may be located in a same plane. 
     In another embodiment, the straight segment of the first frame body and the straight segment of the fourth frame body may alternatively be replaced with bending segments. In other words, the first frame body and the fourth frame body may include at least one bending segment. When the first frame body and the fourth frame body include a plurality of bending segments, the plurality of bending segments are smoothly connected to each other. 
     In an optional embodiment, the first frame body includes a first bearing surface connected to the protection film. A shape of a cross section of the first bearing surface is a straight line segment. The second frame body includes a second bearing surface connected to the protection film. A shape of a cross section of the second bearing surface is an arc segment or a spline curve segment. 
     In this embodiment, the first bearing surface and the second bearing surface jointly support the protection film, so that a middle part of the protection film is flat and edges on two sides of the protection film bend. In this way, the screen protection member forms a three-dimensional structure, so that the protection film can not only be well supported, but also have bending edges. 
     In an optional embodiment, the frame includes a first frame body and a second frame body and a third frame body that are opposite to each other and connected to two ends of the first frame body. The first frame body, the second frame body, and the third frame body all straightly extend. One notch in each notch group is located on the first frame body. In this embodiment, a processing difficulty of the frame is relatively low, and costs are relatively low. 
     In an optional embodiment, the first frame body includes a first bearing surface connected to the protection film. A shape of a cross section of the first bearing surface is a straight line segment. The second frame body includes a second bearing surface connected to the protection film. A shape of a cross section of the second bearing surface is an arc segment or a spline curve segment. 
     In this embodiment, the first bearing surface and the second bearing surface jointly support the protection film, so that a middle part of the protection film is flat and edges on two sides of the protection film bend. In this way, the screen protection member forms a three-dimensional structure, so that the protection film can not only be well supported, but also have bending edges. 
     In an optional embodiment, the first frame body includes a first bearing surface connected to the protection film. A shape of a cross section of the first bearing surface is an arc segment or a spline curve segment. The second frame body includes a second bearing surface connected to the protection film. A shape of a cross section of the second bearing surface is an arc segment or a spline curve segment. 
     In this embodiment, the first bearing surface and the second bearing surface jointly support the protection film, so that a middle part of the protection film is flat and edges on a periphery of the protection film bend. In this way, the screen protection member forms a three-dimensional structure, so that the protection film can not only be well supported, but also have bending edges. 
     In an optional embodiment, the bonding surface further includes a middle region, and the middle region is surrounded by the peripheral region. The middle region is planar. In this case, when the flexible display panel is fastened to the middle region of the bonding surface, planar display can be performed. Alternatively, a central part of the middle region protrudes in a direction away from the frame relative to a periphery of the middle region, and the periphery of the middle region is located between the central part of the middle region and the peripheral region. In this case, the periphery of the middle region of the bonding surface bends, and continuously bends together with the peripheral region of the bonding surface. The flexible display panel may be partially located on the periphery of the middle region of the bonding surface, to implement four-side-curved-surface display. 
     In an optional embodiment, the frame is made of a plastic material or a metal material. The protection film may be a plastic film. 
     In an optional embodiment, a region that is of the protection film and that directly faces the at least one notch group is hollowed out. In this case, when the screen protection member bends by using the position at which the notch group is located, resistance is smaller, and folding and unfolding actions of the screen protection member are easier to implement. 
     In addition, in a process of manufacturing the screen protection member, a complete frame base member may be fastened to the protection film first, and then a partial material on the frame base member is removed, to form a frame having at least one notch group. In this case, a risk of damaging the protection film can be reduced in a process of removing the partial material on the frame base member, to ensure a manufacturing yield of the screen protection member. Certainly, in the process of manufacturing the screen protection member, alternatively, a complete frame base member may be fastened to a complete protection film base member, and then a partial material on the frame base member and a partial material on the protection film base member are removed synchronously, to form a frame having at least one notch group and a protection film having a hollowed-out region. In this case, a degree of matching between an edge of the notch group and an edge of the hollowed-out region of the protection film is high, and appearance consistency of the screen protection member is better. Certainly, the protection film and the frame may alternatively form the screen protection member by using other steps. 
     In another embodiment, the region that is of the protection film and that directly faces the at least one notch group may alternatively not be hollowed out. In other words, the protection film is a complete film layer. In this case, the formed frame may be fastened to the protection film to form the screen protection member, to avoid damaging the protection film in a process of processing the frame, so that a product yield of the screen protection member is higher. Certainly, when processing precision is sufficiently high, a complete frame base member may alternatively be fastened to the protection film first, and then a partial material on the frame base member is removed, to form a frame having at least one notch group. 
     In an optional embodiment, there is one notch group, there are two frame parts, and the two frame parts are symmetrically disposed. In this case, bendable regions of the screen protection member and the screen assembly correspond to a position of the notch group between the two frame parts; in other words, the bendable regions of the screen protection member and the screen assembly are located in central parts of the screen protection member and the screen assembly. The screen assembly can be approximately symmetrically arranged on a first part and a second part that are of the electronic device and that can be unfolded or folded relative to each other, to improve appearance consistency of the electronic device. In addition, the frame may include two frame parts with a same structure, and a requirement of the frame can be satisfied by processing frame parts of only one size, so that material types and costs of the frame can be reduced. 
     In an optional embodiment, there are two notch groups, there are three frame parts, and two frame parts that are in the three frame parts and that are located on an edge are symmetrically disposed. In this case, the screen protection member has a relatively small quantity of material types and relatively low costs. 
     According to a second aspect, an embodiment of this application further provides a screen assembly. The screen assembly includes a flexible display panel and the screen protection member in any one of the foregoing embodiments. The flexible display panel is fastened to the bonding surface and is located on an inner side of the frame. 
     In this embodiment, because the screen protection member has good flatness, the flexible display panel can also be flatly bonded to the bonding surface of the screen protection member, so that the flatness of the screen assembly is high. In addition, during assembly, the screen assembly and another component of the electronic device may be fastened by using a mounting procedure (for example, snap-fit) between a rigid frame and another rigid component (for example, a housing assembly) of the electronic device, to replace a conventional tension step and a conventional surface-to-surface bonding step of a flexible screen. Therefore, the mounting procedure between the rigid structures is simple with a low difficulty, and has a low requirement for devices and processes, so that assembly convenience of an assembly process of the entire electronic device is higher. 
     According to a third aspect, an embodiment of this application further provides an electronic device. The electronic device includes a foldable housing assembly and the foregoing screen assembly. The housing assembly includes at least two housing parts that can be folded or unfolded relative to each other. The at least two frame parts of the frame of the screen assembly are respectively fastened to different housing parts. In this embodiment, assembly convenience of the screen assembly is high, so that assembly efficiency of the electronic device is high and an assembly difficulty of the electronic device is low. 
     According to a fourth aspect, an embodiment of this application further provides a method for manufacturing a screen protection member. The method for manufacturing a screen protection member includes: 
     fastening a protection film to a frame base member, where the frame base member continuously surrounds a peripheral region of a bonding surface of the protection film; and 
     removing a partial material on the frame base member, to form a frame having at least one notch group, where a single notch group includes two notches that are disposed opposite to each other, and the at least one notch group divides the frame into at least two frame parts that are spaced apart from each other. 
     In this embodiment, based on the method for manufacturing a screen protection member, the integral frame base member is fastened to the protection film first, and then a part of the frame base member is removed to form the frame having at least two frame parts. Therefore, all the at least two frame parts can be fastened to the protection film by using one positioning procedure and one fastening procedure, and a position relationship between the at least two frame parts is accurate and reliable, so that production efficiency is improved, and a product yield is relatively high. 
     The protection film may be flexible. The frame base member may be rigid. For example, the protection film may be a plastic film. The frame base member may use a plastic material or a metal material with particular strength. 
     In an optional embodiment, the protection film is fastened to the frame base member through thermoforming or compression molding. In this case, there is no bonding gap between the protection film and the frame, and a connection between the protection film and the frame is firm and reliable, and the protection film does not easily fall off. 
     According to a fifth aspect, an embodiment of this application further provides another method for manufacturing a screen protection member. The method for manufacturing a screen protection member includes: 
     providing a protection film and a frame, where the frame includes at least two frame parts independent of each other; and 
     fastening the at least two frame parts to a peripheral region of a bonding surface of the protection film, where a notch group is formed between two adjacent frame parts in the at least two frame parts, and a single notch group includes two notches disposed opposite to each other. 
     In this embodiment, based on the method for manufacturing a screen protection member, the frame is formed first, and then the frame is fastened to the protection film. Therefore, a processing step of the frame and a processing step of the protection film can be independent of each other with high controllability and do not adversely affect each other. This helps improve manufacturing precision of the screen protection member formed after the frame is fastened to the protection film. 
     The protection film is flexible. The frame is rigid. For example, the protection film may be a plastic film. The frame may use a plastic material or a metal material with particular strength. 
     The protection film is fastened to the frame through thermoforming or compression molding. In this case, there is no bonding gap between the protection film and the frame, and a connection relationship between the protection film and the frame is firm and reliable, and the protection film does not easily fall off. 
     The protection film may be a film layer with a hollowed-out region (for corresponding to a position at which the notch group of the frame is located), or may be a complete film layer without a hollowed-out region. When the protection film is a complete film layer, in a process of removing a partial material on a frame base member, a partial material of the film layer may be removed synchronously, or the material of the film layer may be not removed. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG. 1  is a schematic structural diagram of an electronic device in an embodiment according to an embodiment of this application; 
         FIG. 2  is a schematic structural diagram of the electronic device shown in  FIG. 1  in another use state; 
         FIG. 3  is a front view of a screen assembly of the electronic device shown in  FIG. 1  in a first embodiment; 
         FIG. 4  is a bottom view of the screen assembly shown in  FIG. 3 ; 
         FIG. 5  is a schematic structural diagram of a protection film of a screen protection member of the screen assembly shown in  FIG. 4 ; 
         FIG. 6A  is a schematic structural diagram of the screen assembly shown in  FIG. 3  in a use state; 
         FIG. 6B  is a schematic structural diagram of the screen assembly shown in  FIG. 3  in another use state; 
         FIG. 7  is a schematic structural diagram of a frame of the screen assembly shown in  FIG. 4 ; 
         FIG. 8  is a cross-sectional view of the screen assembly shown in  FIG. 4  cut along a line A-A; 
         FIG. 9  is a cross-sectional view of the screen assembly shown in  FIG. 4  cut along a line B-B; 
         FIG. 10  is a bottom view of the screen assembly of the electronic device shown in  FIG. 1  in a second embodiment; 
         FIG. 11  is a schematic structural diagram of a frame of the screen assembly shown in  FIG. 10 ; 
         FIG. 12  is a cross-sectional view of the screen assembly shown in  FIG. 10  cut along a line C-C; 
         FIG. 13  is a cross-sectional view of the screen assembly shown in  FIG. 10  cut along a line D-D; 
         FIG. 14  is a bottom view of the screen assembly of the electronic device shown in  FIG. 1  in a third embodiment; 
         FIG. 15  is a cross-sectional view of the screen assembly shown in  FIG. 14  cut along a line E-E; 
         FIG. 16  is a cross-sectional view of the screen assembly shown in  FIG. 14  cut along a line F-F; 
         FIG. 17  is a bottom view of the screen assembly of the electronic device shown in  FIG. 1  in a fourth embodiment; 
         FIG. 18  is a cross-sectional view of the screen assembly shown in  FIG. 17  cut along a line G-G; 
         FIG. 19  is a cross-sectional view of the screen assembly shown in  FIG. 17  cut along a line H-H; 
         FIG. 20  is a schematic structural diagram of a protection film of the screen assembly shown in  FIG. 17 ; 
         FIG. 21  is a schematic structural diagram of an electronic device in another embodiment according to an embodiment of this application; 
         FIG. 22  is a schematic structural diagram of a screen protection member of a screen assembly of the electronic device shown in  FIG. 21 ; 
         FIG. 23  is a schematic structural diagram corresponding to a method for manufacturing a screen protection member according to an embodiment of this application; and 
         FIG. 24  is a schematic structural diagram corresponding to another method for manufacturing a screen protection member according to an embodiment of this application. 
     
    
    
     DESCRIPTION OF EMBODIMENTS 
     The following describes the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. 
     Refer to both  FIG. 1  and  FIG. 2 .  FIG. 1  is a schematic structural diagram of an electronic device  1000  in an embodiment according to an embodiment of this application.  FIG. 2  is a schematic structural diagram of the electronic device  1000  shown in  FIG. 1  in another use state. 
     The electronic device  1000  shown in this embodiment of this application may be a mobile phone, a tablet computer, a wearable device, or the like. The electronic device  1000  shown in  FIG. 1  is described by using a mobile phone as an example. 
     The electronic device  1000  shown in this embodiment of this application is a foldable electronic device. To be specific, the electronic device  1000  includes at least two parts that can move relative to each other. The at least two parts of the electronic device  1000  can be folded relative to each other to a closed state in a use state, and can be unfolded relative to each other to an open state in another use state. The electronic device  1000  shown in  FIG. 1  includes a first part  100  and a second part  200  that can move relative to each other. As shown in  FIG. 1 , the first part  100  and the second part  200  are unfolded relative to each other to the open state. As shown in  FIG. 2 , the first part  100  and the second part  200  are folded relative to each other to the closed state. The electronic device  1000  further includes a bending part  300  connected between the first part  100  and the second part  200 , and the bending part  300  can deform, so that the first part  100  and the second part  200  can move relative to each other. 
     As shown in  FIG. 1  and  FIG. 2 , the electronic device  1000  includes a screen assembly  10 . The screen assembly  10  is located on the first part  100 , the second part  200 , and the bending part  300  of the electronic device  1000 . A part that is of the screen assembly  10  and that is located on the bending part  300  can bend. In an implementation, as shown in  FIG. 2 , when the first part  100  and the second part  200  are folded relative to each other to the closed state, the screen assembly  10  is located on an outer side of the electronic device  1000 . In another implementation, when the first part  100  and the second part  200  are folded relative to each other to the closed state, the screen assembly  10  may alternatively be located on an inner side of the electronic device  1000 . 
     In an implementation, the electronic device  1000  includes a foldable housing assembly  20 . The housing assembly  20  includes at least two housing parts  201  that can be folded or unfolded relative to each other. The at least two housing parts  201  are arranged on at least two parts that are of the electronic device  1000  and that can move relative to each other. In this embodiment, there are two housing parts  201 , and the two housing parts  201  are respectively located on the first part  100  and the second part  200 . The screen assembly  10  is fastened to the housing assembly  20 , to move with the housing assembly  20 . 
     Refer to both  FIG. 3  and  FIG. 4 .  FIG. 3  is a front view of the screen assembly  10  of the electronic device  1000  shown in  FIG. 1  in a first embodiment.  FIG. 4  is a bottom view of the screen assembly  10  shown in  FIG. 3 . 
     Optionally, the screen assembly  10  includes a flexible display panel  1  and a screen protection member  2 . The flexible display panel  1  is fastened to the screen protection member  2 . The screen protection member  2  can protect the flexible display panel  1 , and reduce a risk of damaging the flexible display panel  1 , to prolong a service life of the screen assembly  10  and a service life of the electronic device  1000 . 
     The flexible display panel  1  may be an organic light-emitting diode (organic light-emitting diode, OLED) panel, an active-matrix organic light-emitting diode (active-matrix organic light-emitting diode, AMOLED) panel, a mini light-emitting diode (mini organic light-emitting diode) panel, a micro light-emitting diode (micro organic light-emitting diode) panel, a micro organic light-emitting diode (micro organic light-emitting diode) panel, a quantum dot light-emitting diode (quantum dot light-emitting diode, QLED) panel, or the like. 
     Optionally, the screen protection member  2  includes a protection film  21  and a frame  22 . The protection film  21  may be flexible. The frame  22  may be rigid. Flexibility of the protection film  21  and rigidity of the frame  22  are relative. Strength of the protection film  21  is far less than strength of the frame  22 . In this application, the protection film  21  easily bends when subject to force, and the frame  22  does not easily bend when subject to force. For example, the protection film  21  may be a plastic film. The frame  22  may use a plastic material or a metal material with particular strength. 
     Refer to both  FIG. 4  and  FIG. 5 .  FIG. 5  is a schematic structural diagram of the protection film  21  of the screen protection member  2  of the screen assembly  10  shown in  FIG. 4 . 
     The protection film  21  includes a bonding surface  211 . The bonding surface  211  includes a middle region  2111  and a peripheral region  2112 . The middle region  2111  of the bonding surface  211  is surrounded by the peripheral region  2112  of the bonding surface  211 . The frame  22  is fastened to the peripheral region  2112  of the bonding surface  211  by surrounding the peripheral region  2112 . The flexible display panel  1  is fastened to the bonding surface  211  and is located on an inner side of the frame  22 . The flexible display panel  1  is fastened to the middle region  2111  of the bonding surface  211 . The frame  22  has at least one notch group  221 . A single notch group  221  includes two notches  2211  that are disposed opposite to each other. The at least one notch group  221  divides the frame  22  into at least two frame parts  222  that are spaced apart from each other. In this case, the at least two frame parts  222  of the frame  22  are separated from each other by the notch group  221  and can move relative to each other, for example, can be folded relative to each other and unfolded relative to each other, so that the screen protection member  2  can bend by using a position at which the notch group  221  is located, and the screen assembly  10  to which the screen protection member  2  is applied can be folded and unfolded. 
     In this embodiment, the frame  22  can stably support the protection film  21 , so that the screen protection member  2  can maintain good flatness. In this case, the screen assembly  10  to which the screen protection member  2  is applied can also maintain good flatness. Therefore, in the electronic device  1000 , the screen assembly  10  can be assembled by using a mounting procedure (for example, snap-fit) between the rigid frame  22  and another rigid component (for example, the housing assembly  20 ) of the electronic device  1000 , to replace a conventional tension step and a conventional surface-to-surface bonding step of a flexible screen. Therefore, the mounting procedure between the rigid structures is simple with a low difficulty, and has a low requirement for devices and processes, so that assembly convenience of an assembly process of the entire electronic device  1000  is higher. 
     It may be understood that there may be a plurality of manners of the mounting procedure between the rigid frame  22  of the screen assembly  10  and the another rigid component of the electronic device  1000 , for example, snap-fit mentioned above, or fastening implemented by using an adhesive. This is not strictly limited in this application. 
     Optionally, the protection film  21  may be fastened to the frame  22  by using a thermoforming process or a compression molding process. In this case, there is no bonding gap between the protection film  21  and the frame  22 , and a connection between the protection film  21  and the frame  22  is firm and reliable, so that air-tightness between the screen assembly  10  and the electronic device  1000  is better. 
     Optionally, the at least two frame parts  222  of the frame  22  of the screen assembly  10  are respectively fastened to different housing parts  201  (refer to  FIG. 1 ). When the at least two housing parts  201  are folded or unfolded relative to each other, the flexible display panel  1  is driven by the at least two frame parts  222  to be folded or unfolded relative to each other, so that the electronic device  1000  can meet a requirement for large-screen display, and can also meet requirements for miniaturization and convenient carrying. In an embodiment, a quantity of housing parts  201  is the same as a quantity of frame parts  222 , the at least two frame parts  222  of the frame  22  are fastened to the at least two housing parts  201  of the housing assembly  20  in a one-to-one correspondence, and one corresponding frame part  222  is mounted on each housing part  201 . In the embodiment shown in  FIG. 1  and  FIG. 3 , two frame parts  222  of the frame  22  are mounted on two housing parts  201  of the housing assembly  20  in a one-to-one correspondence. In another embodiment, if the quantity of housing parts  201  is greater than the quantity of frame parts  222 , one frame part  222  is mounted on each of some housing parts  201 , and no frame part  222  is mounted on some other housing parts  201 . 
     Optionally, the flexible display panel  1  may be fastened to the bonding surface  211  of the protection film  21  by using an adhesive layer (not shown in the figure). The adhesive layer may use an optically clear adhesive (optically clear adhesive, OCA) material. In this case, there is no air gap between the flexible display panel  1  and the bonding surface  211 , so that display quality of the screen assembly  10  is better. 
     It may be understood that, in this application, the screen protection member  2  may be formed first, and then the flexible display panel  1  is fastened to the bonding surface  211  of the protection film  21 , to form the screen assembly  10 . Alternatively, the flexible display panel  1  may be fastened to the middle region  2111  of the bonding surface  211  of the protection film  21  first, and then the frame  22  is fastened to the peripheral region  2112  of the bonding surface  211  of the protection film  21 , to form the screen assembly  10 . Steps of a method for manufacturing a screen assembly are not strictly limited in this application. 
     Refer to  FIG. 4 ,  FIG. 6A , and  FIG. 6B  together.  FIG. 6A  is a schematic structural diagram of the screen assembly  10  shown in  FIG. 3  in a use state.  FIG. 6B  is a schematic structural diagram of the screen assembly  10  shown in  FIG. 3  in another use state. 
     Optionally, the screen assembly  10  includes a bendable region  101  and a non-bendable region  102 . The bendable region  101  corresponds to a position at which the notch group  221  of the frame  22  is located. The non-bendable region  102  corresponds to a position at which the frame part  222  of the frame  22  is located. The screen assembly  10  may bend by using the bendable region  101 . For example, as shown in  FIG. 6A , the screen assembly  10  may execute, by using the bendable region  101 , a folding action for making the flexible display panel  1  outside. As shown in  FIG. 6B , the screen assembly  10  may alternatively execute, by using the bendable region, a folding action for making the flexible display panel  1  inside. 
     Optionally, in the embodiment shown in  FIG. 4  and  FIG. 5 , a region that is of the protection film  21  and that directly faces the at least one notch group  221  is hollowed out. In this case, when the screen assembly  10  bends by using the bendable region  101 , resistance is smaller, and folding and unfolding actions of the electronic device  1000  are easier to implement. In addition, in a process of manufacturing the screen protection member  2 , a complete frame base member may be fastened to the protection film  21  first, and then a partial material on the frame base member is removed, to form the frame  22  having the at least one notch group  221 . In this case, a risk of damaging the protection film  21  can be reduced in a process of removing the partial material on the frame base member, to ensure a manufacturing yield of the screen protection member  2 . Certainly, in the process of manufacturing the screen protection member  2 , alternatively, a complete frame base member may be fastened to a complete protection film base member, and then a partial material on the frame base member and a partial material on the protection film base member are removed synchronously, to form the frame  22  having the at least one notch group  221  and the protection film  21  having a hollowed-out region. In this case, a degree of matching between an edge of the notch group  221  and an edge of the hollowed-out region of the protection film  21  is high, and appearance consistency of the screen protection member  2  is better. Certainly, the protection film  21  and the frame  22  may alternatively form the screen protection member  2  by using other steps. 
     It may be understood that, in another embodiment, the region that is of the protection film  21  and that directly faces the at least one notch group  221  may alternatively not be hollowed out. In other words, the protection film  21  is a complete film layer. In this case, the formed frame  22  may be fastened to the protection film  21  to form the screen protection member  2 , to avoid damaging the protection film  21  in a process of processing the frame  22 , so that a product yield of the screen protection member  2  is higher. Certainly, when processing precision is sufficiently high, a complete frame base member may alternatively be fastened to the protection film  21  first, and then a partial material on the frame base member is removed, to form the frame  22  having the at least one notch group  221 . This is not strictly limited in this application. 
     Optionally, in the embodiment shown in  FIG. 4 , there is one notch group  221 , and there are two frame parts  222 . The two frame parts  222  are symmetrically disposed. In this case, the bendable region  101  of the screen assembly  10  is located on a central part of the screen assembly  10 , and a bendable region of the screen protection member  2  is located on a central part of the screen protection member  2 . The screen assembly  10  can be approximately symmetrically arranged on the first part  100  and the second part  200  of the electronic device  1000 , to improve appearance consistency of the electronic device  1000 . In addition, the frame  22  may include two frame parts  222  with a same structure, and a requirement of the frame  22  can be satisfied by processing frame parts  222  of only one size, so that material types and costs of the frame  22  can be reduced. 
       FIG. 7  is a schematic structural diagram of the frame  22  of the screen assembly  10  shown in  FIG. 4 . 
     Optionally, the frame  22  includes a first frame body  223  and a second frame body  224  and a third frame body  225  that are opposite to each other and located on two sides of the first frame body  223 . The first frame body  223  includes a straight segment  2231  and a first bending segment  2232  and a second bending segment  2233  that are connected to two ends of the straight segment  2231 . One notch  2211  in each notch group  221  is located on the straight segment  2231 . Both the first bending segment  2232  and the second bending segment  2233  bend toward a side that is of the straight segment  2231  and that is away from the protection film  21  (refer to  FIG. 3 ). The second frame body  224  straightly extends and one end of the second frame body  224  is connected to the first bending segment  2232 . The third frame body  225  straightly extends and one end of the third frame body  225  is connected to the second bending segment  2233 . The straight segment in this application is a structure whose extending direction is straight, and the bending segment is a structure whose extending direction bends. 
     In this embodiment, the straight segment  2231  of the first frame body  223  and the second frame body  224  are connected by using the first bending segment  2232 , to be located in different planes, and the straight segment  2231  of the first frame body  223  and the third frame body  225  are connected by using the second bending segment  2233 , to be located in different planes. The frame  22  is in a three-dimensional structure. In this way, a part that is of the protection film  21  and that is fastened to the straight segment  2231  of the first frame body  223  and parts of the protection film  21  that are fastened to the second frame body  224  and the third frame body  225  are located in different planes. The parts of the protection film  21  that are fastened to the second frame body  224  and the third frame body  225  bend relative to the part that is of the protection film  21  and that is fastened to the straight segment  2231  of the first frame body  223 . Therefore, the screen protection member  2  has a three-dimensional structure. The three-dimensional structure includes a middle planar region and bending regions on edges on two sides, so that the screen assembly  10  and the electronic device  1000  have two smooth side edges, and have better appearance experience and handholding experience. 
     The frame  22  further includes a fourth frame body  226  disposed opposite to the first frame body  223 . The fourth frame body  226  is connected between an end that is of the second frame body  224  and that is away from the first frame body  223  and an end that is of the third frame body  225  and that is away from the first frame body  223 . The fourth frame body  226  includes a straight segment  2261  and two bending segments ( 2262 / 2263 ) connected to two ends of the straight segment  2261 . The two bending segments ( 2262 / 2263 ) are respectively connected to the second frame body  224  and the third frame body  225 . The other notch  2211  in each notch group  221  is located on the straight segment  2261  of the fourth frame body  226 . Refer to the first frame body  223  for a structural design of the fourth frame body  226 . 
     The straight segment  2261  of the fourth frame body  226  and the straight segment  2231  of the first frame body  223  may be located in a same plane. The second frame body  224  and the third frame body  225  may be located in a same plane. 
     In another embodiment, the straight segment  2231  of the first frame body  223  and the straight segment  2261  of the fourth frame body  226  may alternatively be replaced with bending segments. In other words, the first frame body  223  and the fourth frame body  226  may include at least one bending segment. When the first frame body  223  and the fourth frame body  226  include a plurality of bending segments, the plurality of bending segments are smoothly connected to each other. 
     Refer to  FIG. 7  to  FIG. 9  together.  FIG. 8  is a cross-sectional view of the screen assembly  10  shown in  FIG. 4  cut along a line A-A.  FIG. 9  is a cross-sectional view of the screen assembly  10  shown in  FIG. 4  cut along a line B-B. 
     Optionally, as shown in  FIG. 7  and  FIG. 8 , the first frame body  223  includes a first bearing surface  2234  connected to the protection film  21 . A size of the first bearing surface  2234  in an extending direction of the first bearing surface  2234  is far greater than a size in a vertical direction of the extending direction of the first bearing surface  2234 . In this embodiment, the first bearing surface  2234  extends in a direction from the second frame body  224  to the third frame body  225 . The first bearing surface  2234  includes at least two parts that are disconnected in the extending direction of the first bearing surface  2234  (two parts are shown in this embodiment, and there may be a plurality of parts in another embodiment). These parts are separated from each other by the notch  2211 . A shape of a cross section of the first bearing surface  2234  is a straight line segment. The shape of the cross section of the first bearing surface  2234  is a shape of a cross-section of the first bearing surface  2234  in the vertical direction of the extending direction of the first bearing surface  2234 . A cross section shown in  FIG. 8  is perpendicular to the extending direction of the first bearing surface  2234 , and the first bearing surface  2234  shown in  FIG. 8  shows that the shape of the cross-section of the first bearing surface  2234  is a straight line segment. 
     As shown in  FIG. 7  and  FIG. 9 , the second frame body  224  includes a second bearing surface  2241  connected to the protection film  21 . A size of the second bearing surface  2241  in an extending direction of the second bearing surface  2241  is far greater than a size in a vertical direction of the extending direction of the second bearing surface  2241 . In this embodiment, the second bearing surface  2241  extends in a direction from the first frame body  223  to the fourth frame body  226 . A shape of a cross section of the second bearing surface  2241  is an arc segment or a spline curve segment. The second bearing surface  2241  is smoothly connected to the first bearing surface  2234 . The embodiment shown in  FIG. 9  is described by using an example in which the shape of the cross section of the second bearing surface  2241  is an arc segment. In this case, the second bearing surface  2241  has a particular radian, and the frame  22  is a three-dimensional frame  22  with arc-shaped edges. The shape of the cross section of the second bearing surface  2241  is a shape of a cross section of the second bearing surface  2241  in the vertical direction of the extending direction of the second bearing surface  2241 . A cross section shown in  FIG. 9  is perpendicular to the extending direction of the second bearing surface  2241 , and the second bearing surface  2241  shown in  FIG. 9  shows that the shape of the cross section of the second bearing surface  2241  is an arc segment. 
     In this embodiment, the first bearing surface  2234  and the second bearing surface  2241  jointly support the protection film  21 , so that a middle part of the protection film  21  is flat and edges on two sides of the protection film  21  bend. In this way, the screen protection member  2  forms a three-dimensional structure, so that the protection film  21  can not only be well supported, but also have bending edges. 
     The third frame body  225  includes a third bearing surface  2251  connected to the protection film  21 . A shape of a cross section of the third bearing surface  2251  is an arc segment or a spline curve segment. The third bearing surface  2251  is smoothly connected to the first bearing surface  2234 . The fourth frame body  226  includes a fourth bearing surface  2264  connected to the protection film  21 . A shape of a cross section of the fourth bearing surface  2264  is a straight line segment. The fourth bearing surface  2264  is smoothly connected to the second bearing surface  2241  and the third bearing surface  2251 . The first bearing surface  2234 , the second bearing surface  2241 , the third bearing surface  2251 , and the fourth bearing surface  2264  jointly support edge regions on a periphery of the protection film  21 . 
     It may be understood that, shapes of other surfaces of the frame bodies of the frame  22  are not strictly limited in this application. For example, as shown in  FIG. 8 , the first frame body  223  further includes a first mounting surface  2235  disposed opposite to the first bearing surface  2234 . The first mounting surface  2235  may be disposed parallel to the first bearing surface  2234 . In this case, the first frame body  223  is approximately in a shape of an elongated flat plate. In another embodiment, alternatively, an included angle may be formed between the first mounting surface  2235  and the first bearing surface  2234 . In other words, the first mounting surface  2235  is tilted relative to the first bearing surface  2234 . As shown in  FIG. 9 , the second frame body  224  further includes a second mounting surface  2242  disposed opposite to the second bearing surface  2241 . The second mounting surface  2242  may be disposed parallel to the second bearing surface  2241 . In this case, the second frame body  224  is approximately in a shape of an elongated bending plate. In another embodiment, alternatively, an included angle may be formed between the second mounting surface  2242  and the second bearing surface  2241 . In other words, the second mounting surface  2242  is tilted relative to the second bearing surface  2241 . For example, the second frame body  224  may be in a shape of a triangular strip. 
     Optionally, as shown in  FIG. 9 , in this embodiment, the flexible display panel  1  may be planar as a whole. The screen assembly  10  forms a planar display form. In this case, the middle region  2111  of the bonding surface  211  of the protection film  21  is planar as a whole. Alternatively, a central part of the middle region  2111  of the bonding surface  211  is planar, and a periphery (connected to the peripheral region  2112 ) of the middle region  2111  of the bonding surface  211  is in a shape of a curved surface. A bending angle of a side part of the middle region  2111  of the bonding surface  211  may be set to be relatively small. This is not strictly limited in this application. In another embodiment, when the bending angle of the side part of the middle region  2111  of the bonding surface  211  is relatively large, and space is relatively large, an edge of the flexible display panel  1  may also appropriately bend with the side part of the middle region  2111 , to implement display on a side edge of the screen assembly  10 , so that the screen assembly  10  has a larger display area. 
     In another embodiment, a shape of the cross section of the first bearing surface  2234  in  FIG. 8  may alternatively include a straight line segment and an arc segment connected to an end of the straight line segment. The arc segment is located on a side that is of the straight line segment and that is away from the flexible display panel  1 . In this case, the periphery of the protection film  21  can be in a shape of a curved surface. Two sides (for example, left and right sides) of the protection film  21  have large curved surfaces, and the other two sides (for example, upper and lower sides) have small curved surfaces. 
     Refer to both  FIG. 10  and  FIG. 11 .  FIG. 10  is a bottom view of the screen assembly  10  of the electronic device  1000  shown in  FIG. 1  in a second embodiment.  FIG. 11  is a schematic structural diagram of the frame  22  of the screen assembly  10  shown in  FIG. 10 . Some technical content of the screen assembly  10  shown in the second embodiment that is the same as that of the screen assembly  10  shown in the first embodiment is not described again in the following descriptions. 
     The frame  22  of the screen protection member  2  of the screen assembly  10  includes a first frame body  223  and a second frame body  224  and a third frame body  225  that are opposite to each other and connected to two ends of the first frame body  223 . The frame  22  further includes a fourth frame body  226  disposed opposite to the first frame body  223 . The fourth frame body  226  is connected between an end part that is of the second frame body  224  and that is away from the first frame body  223  and an end part that is of the third frame body  225  and that is away from the first frame body  223 . One notch  2211  in each notch group  221  is located on the first frame body  223 . The other notch  2211  in each notch group  221  is located on the fourth frame body  226 . In this embodiment, if the frame  22  includes one notch group  221 , one notch  2211  is provided on the first frame body  223 , and one notch  2211  is provided on the fourth frame body  226 . The first frame body  223 , the second frame body  224 , and the third frame body  225  all straightly extend. The fourth frame body  226  also straightly extends. In this case, a processing difficulty of the frame  22  is relatively low. 
     Refer to  FIG. 11  to  FIG. 13  together.  FIG. 12  is a cross-sectional view of the screen assembly  10  shown in  FIG. 10  cut along a line C-C.  FIG. 13  is a cross-sectional view of the screen assembly  10  shown in  FIG. 10  cut along a line D-D. 
     The first frame body  223  includes a first bearing surface  2234  connected to the protection film  21 , and a shape of a cross section of the first bearing surface  2234  is a straight line segment. The second frame body  224  includes a second bearing surface  2241  connected to the protection film  21 , and a shape of a cross section of the second bearing surface  2241  is an arc segment or a spline curve segment. In this embodiment, the first bearing surface  2234  and the second bearing surface  2241  jointly support the protection film  21 , so that a middle part of the protection film  21  is flat and edges on two sides of the protection film  21  bend. In this way, the screen protection member  2  forms a three-dimensional structure, so that the protection film  21  can not only be well supported, but also have bending edges. 
     The third frame body  225  includes a third bearing surface  2251  connected to the protection film  21 . A shape of a cross section of the third bearing surface  2251  is an arc segment or a spline curve segment. The fourth frame body  226  includes a fourth bearing surface  2264  connected to the protection film  21 . A shape of a cross section of the fourth bearing surface  2264  is a straight line segment. The first bearing surface  2234 , the second bearing surface  2241 , the third bearing surface  2251 , and the fourth bearing surface  2264  are smoothly connected to each other. The first bearing surface  2234 , the second bearing surface  2241 , the third bearing surface  2251 , and the fourth bearing surface  2264  jointly support edge regions on four edges of the protection film  21 . 
     In this embodiment, as shown in  FIG. 9 , the middle region  2111  of the bonding surface  211  of the protection film  21  is planar as a whole, and the peripheral region  2112  of the bonding surface  211  is in a shape of a curved surface. The flexible display panel  1  is bonded to the middle region  2111  of the bonding surface  211  for planar display. 
     In another embodiment, the shape of the cross section of the second bearing surface  2241  may alternatively be a straight line segment. The shape of the cross section of the third bearing surface  2251  is also a straight line segment. In this case, the first bearing surface  2234 , the second bearing surface  2241 , the third bearing surface  2251 , and the fourth bearing surface  2264  are coplanar. 
     Refer to  FIG. 14  to  FIG. 16  together.  FIG. 14  is a bottom view of the screen assembly  10  of the electronic device  1000  shown in  FIG. 1  in a third embodiment.  FIG. 15  is a cross-sectional view of the screen assembly  10  shown in  FIG. 14  cut along a line E-E.  FIG. 16  is a cross-sectional view of the screen assembly  10  shown in  FIG. 14  cut along a line F-F. Some technical content of the screen assembly  10  shown in the third embodiment that is the same as that of the screen assembly  10  shown in the foregoing embodiments is not described again in the following descriptions. 
     The frame  22  of the screen protection member  2  of the screen assembly  10  includes a first frame body  223  and a second frame body  224  and a third frame body  225  that are opposite to each other and connected to two ends of the first frame body  223 . The frame  22  further includes a fourth frame body  226  disposed opposite to the first frame body  223 . The fourth frame body  226  is connected between an end part that is of the second frame body  224  and that is away from the first frame body  223  and an end part that is of the third frame body  225  and that is away from the first frame body  223 . One notch  2211  in each notch group  221  is located on the first frame body  223 . The other notch  2211  in each notch group  221  is located on the fourth frame body  226 . In this embodiment, if the frame  22  includes one notch group  221 , one notch  2211  is provided on the first frame body  223 , and one notch  2211  is provided on the fourth frame body  226 . The first frame body  223 , the second frame body  224 , and the third frame body  225  all straightly extend. The fourth frame body  226  also straightly extends. 
     That the first frame body  223  straightly extends means that a main body of the first frame body  223  straightly extends, and end parts of the first frame body  223  that are connected to the second frame body  224  and the third frame body  225  may extend in a bending manner, to be smoothly connected to the second frame body  224  and the third frame body  225 . A length of the end part of the first frame body  223  is far less than a length of the main body of the first frame body  223 . Similarly, end parts of the second frame body  224  are smoothly connected to an end part of the first frame body  223  and an end part of the fourth frame body  226 . The third frame body  225  is smoothly connected to an end part of the first frame body  223  and an end part of the fourth frame body  226 . The fourth frame body  226  is smoothly connected to an end part of the second frame body  224  and an end part of the third frame body  225 . Straight extension of the second frame body  224 , straight extension of the third frame body  225 , and straight extension of the fourth frame body  226  are understood in a same way. 
     The first frame body  223  includes a first bearing surface  2234  connected to the protection film  21 , and a shape of a cross section of the first bearing surface  2234  is an arc segment or a spline curve segment. The second frame body  224  includes a second bearing surface  2241  connected to the protection film  21 , and a shape of a cross section of the second bearing surface  2241  is an arc segment or a spline curve segment. The first bearing surface  2234  and the second bearing surface  2241  jointly support the protection film  21 , so that a middle part of the protection film  21  is flat and edges on a periphery of the protection film  21  bend. In this way, the screen protection member  2  forms a three-dimensional structure, so that the protection film  21  can not only be well supported, but also have bending edges. 
     The third frame body  225  includes a third bearing surface  2251  connected to the protection film  21 . A shape of a cross section of the third bearing surface  2251  is an arc segment or a spline curve segment. The fourth frame body  226  includes a fourth bearing surface  2264  connected to the protection film  21 . A shape of a cross section of the fourth bearing surface  2264  is an arc segment or a spline curve segment. The first bearing surface  2234 , the second bearing surface  2241 , the third bearing surface  2251 , and the fourth bearing surface  2264  are smoothly connected to each other. The first bearing surface  2234 , the second bearing surface  2241 , the third bearing surface  2251 , and the fourth bearing surface  2264  jointly support edge regions on four edges of the protection film  21 . 
     The bonding surface  211  further includes a middle region  2111 , and the middle region  2111  is surrounded by the peripheral region  2112 . The middle region  2111  of the bonding surface  211  is planar. The flexible display panel  1  is fastened to the middle region  2111  of the bonding surface  211  for planar display. The frame  22  is supported on the peripheral region  2112  of the bonding surface  211 , so that the peripheral region  2112  on four edges bends. 
     Refer to  FIG. 17  to  FIG. 20  together.  FIG. 17  is a bottom view of the screen assembly  10  of the electronic device  1000  shown in  FIG. 1  in a fourth embodiment.  FIG. 18  is a cross-sectional view of the screen assembly  10  shown in  FIG. 17  cut along a line G-G.  FIG. 19  is a cross-sectional view of the screen assembly  10  shown in  FIG. 17  cut along a line H-H.  FIG. 20  is a schematic structural diagram of the protection film  21  of the screen assembly  10  shown in  FIG. 17 . Some technical content of the screen assembly  10  shown in the fourth embodiment that is the same as that of the screen assembly  10  shown in the foregoing embodiments is not described again in the following descriptions. 
     In this embodiment, the frame  22  of the screen protection member  2  of the screen assembly  10  includes a first frame body  223 , a second frame body  224 , a third frame body  225 , and a fourth frame body  226  that straightly extend. The two notches  2211  in the notch group  221  are respectively provided on the first frame body  223  and the fourth frame body  226 . 
     The first frame body  223  includes a first bearing surface  2234  connected to the protection film  21 . The second frame body  224  includes a second bearing surface  2241  connected to the protection film  21 . The third frame body  225  includes a third bearing surface  2251  connected to the protection film  21 . The fourth frame body  226  includes a fourth bearing surface  2264  connected to the protection film  21 . Shapes of cross sections of the first bearing surface  2234 , the second bearing surface  2241 , the third bearing surface  2251 , and the fourth bearing surface  2264  are arc segments or spline curve segments. The frame  22  is fastened to the peripheral region  2112  of the bonding surface  211  of the protection film  21 . The first bearing surface  2234 , the second bearing surface  2241 , the third bearing surface  2251 , and the fourth bearing surface  2264  jointly support the protection film  21 , so that edges on the periphery of the protection film  21  keep bending. 
     The flexible display panel  1  is fastened to the middle region  2111  of the bonding surface  211 . A periphery  21112  of the middle region  2111  of the bonding surface  211  is located between a central part  21111  of the middle region  2111  and the peripheral region  2112 . The central part  21111  of the middle region  2111  of the bonding surface  211  protrudes in a direction away from the frame  22  relative to the periphery  21112  of the middle region  2111  (embodied as being recessed downwardly relative to a plane in which the peripheral region  2112  is located in  FIG. 20 ). In this case, the periphery  21112  of the middle region  2111  of the bonding surface  211  bends, and continuously bends together with the peripheral region  2112  of the bonding surface  211 . The flexible display panel  1  may be partially located on the periphery  21112  of the middle region  2111  of the bonding surface  211 , to implement four-side-curved-surface display. 
     Refer to both  FIG. 21  and  FIG. 22 .  FIG. 21  is a schematic structural diagram of the electronic device  1000  in another embodiment according to an embodiment of this application.  FIG. 22  is a schematic structural diagram of the screen protection member  2  of the screen assembly  10  of the electronic device  1000  shown in  FIG. 21 . Some technical content of the electronic device  1000  shown in this embodiment that is the same as that of the electronic device  1000  shown in the foregoing embodiment is not described again in the following descriptions. 
     In this embodiment, the electronic device  1000  includes a first part  100 , a second part  200 , and a third part  400  that can move relative to each other, and the third part  400  is located between the first part  100  and the second part  200 . The electronic device  1000  further includes a first bending part  500  located between the first part  100  and the third part  400  and a second bending part  600  located between the third part  400  and the second part  200 . The first bending part  500  and the second bending part  600  can deform, to enable the first part  100 , the second part  200 , and the third part  400  to be folded or unfolded relative to each other. There are a plurality of manners of folding or unfolding the first part  100 , the second part  200 , and the third part  400  relative to each other. This is not strictly limited in this application. 
     The electronic device  1000  includes a screen assembly  10 , and the screen assembly  10  is continuously located on the first part  100 , the first bending part  500 , the third part  400 , the second bending part  600 , and the second part  200 . There are two notch groups  221  on the frame  22  of the screen protection member  2  of the screen assembly  10 , and there are three frame parts  222 . In an implementation, two frame parts  222  that are in the three frame parts  222  and that are located on an edge are symmetrically disposed. In this case, the screen protection member  2  has a relatively small quantity of material types and relatively low costs. In another embodiment, two frame parts  222  that are in the three frame parts  222  and that are located on an edge may alternatively have a different structural design. 
     An embodiment of this application further provides a method for manufacturing a screen protection member. The manufacturing method may be used for manufacturing the screen protection member  2  shown in the foregoing embodiments.  FIG. 23  is a schematic structural diagram corresponding to a method for manufacturing a screen protection member according to an embodiment of this application. A structure shown in  FIG. 23  is described by using an example in which the screen protection member  2  has one notch group  221 . 
     The method for manufacturing a screen protection member includes: 
     Step  011 : Fasten a protection film  21  to a frame base member  220 . The frame base member  220  continuously surrounds a peripheral region  2112  of a bonding surface  211  of the protection film  21  (refer to  FIG. 5 ). The protection film  21  may be flexible. The frame base member  220  may be rigid. For example, the protection film  21  may be a plastic film. The frame base member  220  may use a plastic material or a metal material with particular strength. 
     Step  013 : Remove a partial material on the frame base member  220 , to form a frame  22  having at least one notch group  221 . A single notch group  221  includes two notches that are disposed opposite to each other. The at least one notch group  221  divides the frame  22  into at least two frame parts  222  that are spaced apart from each other. 
     In this embodiment, based on the method for manufacturing a screen protection member, the integral frame base member  220  is fastened to the protection film  21  first, and then a part of the frame base member  220  is removed to form the frame  22  having at least two frame parts  222 . Therefore, all the at least two frame parts  222  can be fastened to the protection film  21  by using one positioning procedure and one fastening procedure, and a position relationship between the at least two frame parts  222  is accurate and reliable, so that production efficiency is improved, and a product yield is relatively high. 
     It may be understood that, in step  021 , the protection film  21  may be a film layer with a hollowed-out region (for corresponding to a position at which a notch group  221  in step  023  is located), or may be a complete film layer without a hollowed-out region. When the protection film  21  is a complete film layer, in a process of removing the partial material on the frame base member  220  in step  023 , a partial material of the film layer may be removed synchronously, or the material of the film layer may not be removed. 
     The protection film  21  is fastened to the frame base member  220  through thermoforming or compression molding. In this case, there is no bonding gap between the protection film  21  and the frame  22 , and a connection relationship between the protection film  21  and the frame  22  is firm and reliable, and the protection film  21  does not easily fall off. 
     An embodiment of this application further provides another method for manufacturing a screen protection member. The manufacturing method may be used for manufacturing the screen protection member  2  shown in the foregoing embodiments.  FIG. 24  is a schematic structural diagram corresponding to another method for manufacturing a screen protection member according to an embodiment of this application. A structure shown in  FIG. 24  is described by using an example in which the screen protection member  2  has one notch group  221 . 
     The method for manufacturing a screen protection member includes: 
     Step  021 : Provide a protection film  21  and a frame  22 . The frame  22  includes at least two frame parts  222  independent of each other. The protection film  21  is flexible. The frame  22  is rigid. For example, the protection film  21  may be a plastic film. The frame  22  may use a plastic material or a metal material with particular strength. 
     Step  023 : Fasten the at least two frame parts  222  to a peripheral region  2112  of a bonding surface  211  of the protection film  21  (refer to  FIG. 5 ). A notch group  221  is formed between two adjacent frame parts  222  in the at least two frame parts  222 , and a single notch group  221  includes two notches disposed opposite to each other. 
     In this embodiment, based on the method for manufacturing a screen protection member, the frame  22  is formed first, and then the frame  22  is fastened to the protection film  21 . Therefore, a processing step of the frame  22  and a processing step of the protection film  21  can be independent of each other with high controllability and do not adversely affect each other. This helps improve manufacturing precision of the screen protection member  2  formed after the frame  22  is fastened to the protection film  21 . 
     It may be understood that, in step  021 , the protection film  21  may be a film layer with a hollowed-out region (for corresponding to a position at which a notch group  221  in step  023  is located), or may be a complete film layer without a hollowed-out region. 
     The protection film  21  is fastened to the frame  22  through thermoforming or compression molding. In this case, there is no bonding gap between the protection film  21  and the frame  22 , and a connection relationship between the protection film  21  and the frame  22  is firm and reliable, and the protection film  21  does not easily fall off. 
     The foregoing descriptions are merely specific implementations of this application, but are not intended to limit the protection scope of this application. Any variation or replacement readily figured out by a person skilled in the art within the technical scope disclosed in this application shall fall within the protection scope of this application. If there is no conflict, the embodiments of this application and the features in the embodiments may be combined with each other. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.