Supporting piece, display screen assembly and electronic equipment

Abstract

The invention discloses a supporting piece, a display screen assembly and electronic equipment, the supporting piece at least comprises a first bending part, the first bending part is used for being connected with a second bending part of a flexible display screen supported by the supporting piece, and the first face, facing the second bending part, of the first bending part is provided with a first hollow area; the second face, back on to the second bending part, of the first bending part is provided with a second hollowed-out area, and the second hollowed-out area is not completely communicated with the first hollowed-out area.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a support member, a display screen assembly, and an electronic device. Background Art

[0002] The flexible display screen itself has low rigidity and requires a support plate on its back (i.e., the side facing away from the display surface) to provide support. In some electronic devices with foldable functions (such as foldable mobile phones, etc.), the support plate is provided with a mesh structure at the position corresponding to the bending area of ​​the flexible display screen, so that the support plate can adapt to the foldable function of the flexible display screen.

[0003] Currently, in order to prevent foreign matter such as tiny gravel from penetrating the mesh structure on the support plate and hitting the flexible display screen, a support member is urgently needed to solve this problem. Summary of the Invention

[0004] This application provides the following technical solutions:

[0005] A support member includes at least a first bending portion, the first bending portion is used to connect to the second bending portion of a flexible display supported by the support member, the first bending portion has a first hollow area on the first surface facing the second bending portion, the first bending portion has a second hollow area on the second surface facing away from the second bending portion, and the second hollow area is not completely connected to the first hollow area.

[0006] Optionally, in the above-mentioned support member, the first hollow area includes a plurality of first elongated holes that meet a first condition, and the length direction of the first elongated holes meets a matching condition with the bending axis of the first bending portion; and / or,

[0007] The second hollow area includes a plurality of second elongated holes that meet the first condition, and the length direction of the second elongated holes meets the matching condition with the bending axis of the first bending portion.

[0008] Optionally, in the above-mentioned support member, the first hollow area includes multiple columns of the first elongated holes, each column is composed of at least two first elongated holes, and the first elongated holes in adjacent columns are staggered and overlapped along a direction that meets a matching condition with the bending axis of the first bending portion; and / or,

[0009] The second hollow area includes multiple columns of the second long strip holes, each column is composed of at least two second long strip holes, and the second long strip holes in adjacent columns are staggered and overlapped along a direction that meets the matching conditions with the bending axis of the first bending portion.

[0010] Optionally, in the above-mentioned support member, the overlapping portions of the first elongated holes in each column together form a plurality of dumbbell-shaped first grid patterns distributed along a direction that satisfies a matching condition with the bending axis of the first bending portion, and the middle portion of the first grid pattern is spindle-shaped; and / or,

[0011] The overlapping parts of the second long strip holes in each column together form a plurality of dumbbell-shaped second grid patterns distributed along a direction that meets the matching condition with the bending axis of the first bending portion, and the middle part of the second grid pattern is spindle-shaped.

[0012] A support member includes at least a third bending portion, the third bending portion is used to connect to the second bending portion of a flexible display supported by the support member, the third bending portion includes a first supporting layer and a second supporting layer stacked together, the first supporting layer has a third hollow area, and the second supporting layer is arranged at least corresponding to the third hollow area.

[0013] Optionally, in the above-mentioned support member, the first support layer is located on a side of the second support layer close to the second bending portion, and the third hollow area is filled with a lubricating medium.

[0014] Optionally, in the above-mentioned support member, the first support layer and the second support layer are provided as an integrally formed structure.

[0015] A display screen assembly includes a flexible display screen and a support member located on the back of the flexible display screen, the support member including at least a first bending portion, the first bending portion being connected to the second bending portion of the flexible display screen, the first bending portion having a first hollow area on a first surface facing the second bending portion, the first bending portion having a second hollow area on a second surface facing away from the second bending portion, and the second hollow area being incompletely connected to the first hollow area.

[0016] A display screen assembly includes a flexible display screen and a support member located on the back of the flexible display screen, the support member including at least a third bent portion connected to the second bent portion of the flexible display screen, the third bent portion including a first supporting layer and a second supporting layer stacked together, the first supporting layer having a third hollowed-out area, and the second supporting layer being arranged at least corresponding to the third hollowed-out area;

[0017] The display screen assembly further includes:

[0018] A covering film is made of an elastic material, connected to the side of the support member facing away from the flexible display screen and covering the third bending portion. The covering film can elastically deform along with the bending deformation of the third bending portion. The material of the support member is harder than that of the covering film.

[0019] An electronic device includes a display screen assembly, the display screen assembly including a flexible display screen and a support member located on the back of the flexible display screen, the support member including at least a first bending portion, the first bending portion being connected to the second bending portion of the flexible display screen, the first bending portion having a first hollow area on a first surface facing the second bending portion, the first bending portion having a second hollow area on a second surface facing away from the second bending portion, and the second hollow area being not completely connected to the first hollow area.

[0020] An electronic device includes a display screen assembly, the display screen assembly including a flexible display screen and a support member located on the back of the flexible display screen, the support member including at least a third bent portion, the third bent portion connected to the second bent portion of the flexible display screen, the third bent portion including a first supporting layer and a second supporting layer stacked together, the first supporting layer having a third hollow area, and the second supporting layer being arranged at least corresponding to the third hollow area.

[0021] Optionally, in the electronic device, the display screen assembly further includes:

[0022] A covering film is made of an elastic material, connected to the side of the support member facing away from the flexible display screen and covering the third bending portion. The covering film can elastically deform along with the bending deformation of the third bending portion. The material of the support member is harder than that of the covering film. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without any creative work.

[0024] Figure 1 is a partial schematic diagram of the back of the display screen assembly provided in an embodiment of the present application;

[0025] Figure 2 yes Figure 1 A magnified schematic diagram of point A in the middle;

[0026] Figure 3 It is along Figure 2 Cross-section along the midline BB;

[0027] Figure 4 yes Figure 3 The enlarged schematic diagram of point D in the middle;

[0028] Figure 5 is a schematic diagram of a structural form of a support member according to an embodiment of the present application;

[0029] Figure 6 is a partial cross-sectional view of a display screen assembly according to an embodiment of the present application, showing another structural form of the support member;

[0030] Figure 7 is a partial cross-sectional view of a display screen assembly according to an embodiment of the present application, showing another structural form of the support member;

[0031] Figure 8 is a partial cross-sectional view of a display screen assembly according to an embodiment of the present application, showing another structural form of the support member;

[0032] Figure 9 This is a partial cross-sectional view of a display screen assembly according to an embodiment of the present application, showing the arrangement position of the cover film.

[0033] The following are marked in the figure:

[0034] 100, support member; 200, flexible display screen; 300, cover film;

[0035] 101. First hollow area; 102. Second hollow area;

[0036] 110, first supporting layer; 111, third hollow area; 120, second supporting layer; 121, fourth hollow area. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0038] In the description of this application, reference to the terms "one embodiment," "some embodiments," "example," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of this application. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification, as well as features of different embodiments or examples, unless they are mutually inconsistent.

[0039] In the description of this specification, relational terms such as first and second, etc. are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising the element.

[0040] Currently, to prevent tiny particles of sand and gravel from penetrating the mesh structure of the support plate and rubbing against the flexible display, a TPU film (thermoplastic polyurethane elastomer) is typically added to the side of the support plate facing away from the flexible display to cover the area of ​​the mesh structure. However, the TPU film itself is relatively soft, and small particles of sand and gravel contacting the area of ​​the TPU film corresponding to the mesh of the support plate can push the TPU film partially to the other side of the support plate and rub against the flexible display. To address this issue, a traditional solution is to add a protective sheet to the hinge area of ​​the electronic device to fill the gap in the hinge area as much as possible, thereby reducing the possibility of sand and gravel entering the hinge area of ​​the electronic device. However, this solution has the following disadvantages: the addition of a protective sheet increases the number of assembly steps, increasing the assembly cost of the electronic device and reducing the yield rate; the protective sheet reduces the smoothness of the bending and deformation process of the hinge portion of the electronic device, and the increased rebound force places higher requirements on the hinge's locking force. Based on this, the present application proposes a support member, a display assembly, and an electronic device.

[0041] See also Figures 1 to 6 The embodiment of the present application provides a support member 100, which can be used to support a flexible display screen 200. The flexible display screen 200 refers to a display screen that can be bent and deformed. For example, the flexible display screen 200 can be bent along Figure 3The flexible display 200 is bent in the direction of arrow W, thereby forming a concave shape on one side of its thickness direction K and a convex shape on the other side. The support member 100 includes at least a third bending portion S, which is used to connect with the second bending portion (not labeled in the figure) of the flexible display 200 supported by the support member 100. It should be understood that the second bending portion is the portion of the flexible display 200 that can bend and deform, and the third bending portion S is the portion of the support member 100 corresponding to the portion of the flexible display 200 that can bend and deform. The third bending portion S is also capable of bending and deforming. For example, the third bending portion S can be configured to switch between a teardrop-shaped folded configuration and a flat, unfolded configuration together with the flexible display 200. The third bending portion S of the support member 100 includes a first supporting layer 110 and a second supporting layer 120 which are stacked, wherein the first supporting layer 110 has a third hollow area 111, and the second supporting layer 120 is at least arranged corresponding to the third hollow area 111, that is, at least part of the second supporting layer 120 is arranged corresponding to the third hollow area 111, that is, part or all of the second supporting layer 120 is arranged corresponding to the third hollow area 111.

[0042] The first supporting layer 110 and the second supporting layer 120 are two parts of the supporting member 100 stacked along the thickness direction K of the flexible display screen 200. It should be noted that during the bending deformation process of the third bending portion S of the supporting member 100, due to the different deformation amounts of the inner and outer sides (the inner side is compressed and shortened, and the outer side is stretched and extended), there is a local misalignment movement between the first supporting layer 110 and the second supporting layer 120 along the tangential direction of the bending line. Figures 3 to 5 In some embodiments, the gap P between the first supporting layer 110 and the second supporting layer 120 can be set to a small distance greater than 0 mm. For example, the gap P can be set to no greater than 0.5 mm. Of course, in other embodiments, the gap P between the first supporting layer 110 and the second supporting layer 120 can also be set to 0 mm, that is, the first supporting layer 110 and the second supporting layer 120 are in contact.

[0043] The first supporting layer 110 is used to connect to the flexible display 200, and the second supporting layer 120 is disposed at least in correspondence with the third hollow region 111 of the first supporting layer 110. This means that the second supporting layer 120 partially or completely blocks the third hollow region 111 along the thickness direction K of the flexible display 200. In other words, due to the presence of the second supporting layer 120, the third hollow region 111 of the first supporting layer 110 is not exposed to the back of the display assembly. Because the second supporting layer 120, as a component of the support member 100, has a certain supporting strength, it can provide sufficient protection against foreign matter (such as small pieces of sand) on the back of the display assembly, preventing a portion of the foreign matter from passing through the third hollow region 111 and pushing against the side of the flexible display 200, thereby causing the portion of the flexible display 200 corresponding to the third hollow region 111 to be damaged. That is, the second supporting layer 120, as a component of the support member 100, has a stronger ability to resist deformation than the TPU film, thus effectively solving the problem of the flexible display 200 being rubbed by foreign matter on the side of the support plate close to the flexible display 200. Furthermore, because the second supporting layer 120 is a component of the support member 100, compared to the traditional solution of adding a protective sheet, the solution of the present application can reduce the assembly process of the display assembly, thereby reducing the difficulty of controlling product yield.

[0044] The material of the support member 100 can be flexibly selected according to the need for support strength, including but not limited to stainless steel, carbon fiber and other materials. Figure 5 In the exemplary embodiment, the first support layer 110 and the second support layer 120 can be set as an integrally formed structure. Of course, in other embodiments, the first support layer 110 and the second support layer 120 can also be made separately and then connected together by, for example, welding, bonding, etc. In the case where the first support layer 110 and the second support layer 120 are integrally formed, the materials of the two are the same, for example, stainless steel or carbon fiber. During the production, the production of the support member 100 can be completed by existing 3D printing technology, or the production of the support member 100 can be completed by machining. It should be noted that, in the case where the first support layer 110 and the second support layer 120 are integrally formed, the two are at the edge position of the third bend S (i.e. Figure 5 The upper and lower ends of the third bent portion S shown are integrally connected. When the first supporting layer 110 and the second supporting layer 120 are made separately and then connected together, the edge positions of the corresponding third bent portion S (i.e. Figure 5The upper and lower ends of the third bent portion (S) are fixedly connected by welding, bonding, or other methods. Since the first support layer 110 and the second support layer 120 are manufactured separately and then connected together, their materials can be the same or different, as long as they are within the range of materials available for the support member 100. Furthermore, as will be understood from the foregoing description, the term "hollowed-out region" in this specification is intended to indicate a structural form, and does not limit the hollowed-out region to being manufactured using methods other than hollowing processes.

[0045] In some embodiments, the second supporting layer 120 may be provided with a fourth hollow area 121, and the fourth hollow area 121 may be provided at a position avoiding the second supporting layer 120 corresponding to the third hollow area 111, so that the third hollow area 111 is blocked by the area outside the fourth hollow area 121 of the second supporting layer 120. Figure 2 and Figure 3 , what can be seen through the fourth hollow area 121 is the portion of the first supporting layer 110 outside the third hollow area 111. There are many options for the shapes of the third hollow area 111 and the fourth hollow area 121. In some embodiments, the fourth hollow area 121 may include a plurality of fourth long strip holes that meet the first condition, and the length direction of the fourth long strip holes meets the matching condition with the bending axis of the third bending portion S. The fourth long strip holes meeting the first condition means that the length directions of the respective fourth long strip holes are parallel to each other or the angle between them and the length direction of any other fourth long strip holes is not greater than a preset small angle, and the preset small angle can be, for example, an angle value of 5°, 8°, 10°, etc. It should be understood that the bending axis of the third bending portion S is a motion plane formed by bending and deforming the third bending portion S (for example Figure 2 The matching condition between the length direction of the fourth elongated hole and the bending axis of the third bent portion S means that the length direction of the fourth elongated hole is parallel to the bending axis, or the angle between the length direction of the fourth elongated hole and the bending axis is no greater than a predetermined small angle, which can be, for example, 5°, 8°, or 10°.

[0046] Similarly, in some embodiments, the third hollow area 111 may include a plurality of third elongated holes that meet the first condition, and the length direction of the third elongated holes matches the bending axis of the third bent portion S. Of course, in other embodiments, the fourth hollow area 121 and the third hollow area 111 may be configured as other shapes, and the shape of the third hollow area 111 and the shape of the fourth hollow area 121 may be the same or different, for example, one of the two may be configured as an elongated hole shape and the other as a circular hole shape. It is understood that a plurality of circular holes distributed in a dot matrix can also form a mesh structure that reduces bending resistance.

[0047] In some embodiments, the fourth hollow area 121 may include multiple rows of fourth elongated holes, each row consisting of at least two fourth elongated holes, and the fourth elongated holes in adjacent rows are staggered and overlapped along a direction that satisfies the matching condition with the bending axis of the third bending portion S. Figure 2 The length direction of the fourth long strip hole, that is, the length direction of the fourth hollow area 121 is Figure 2 In the horizontal direction, the fourth long hole in each column is along Figure 2 The fourth long strip holes arranged in the horizontal direction, the fourth long strip holes in different columns are arranged along Figure 2 In the vertical direction of the arrangement, in two adjacent rows of fourth long strip holes, the fourth long strip holes are alternately distributed along the end-to-end overlap, that is, the head of the fourth long strip holes in one row and the tail of the fourth long strip holes in the other row are at the same position. Figure 2 The horizontal directions are not completely staggered, but overlapped, forming a shape similar to crossed fingers.

[0048] In some embodiments, the fourth elongated holes in the same column can be set to have the same width or slightly different widths. The equal width setting of the fourth elongated holes in the same column is convenient for uniform production on the one hand, and helps to improve the hollow area acquisition rate on the surface of the support member 100 on the other hand, that is, it is conducive to setting as many columns of fourth elongated holes as possible within a limited area. In addition, the fourth elongated holes in different columns can be set to have the same width or slightly different widths, which is not limited in this application. At the same time, the spacing between adjacent columns can be equal or unequal, that is, in the width direction of the fourth elongated holes, the fourth elongated holes can be evenly distributed with equal density, or can be distributed with varying density. For example, the fourth elongated holes in adjacent columns are more densely arranged in the middle position of the bending portion of the support member 100 than at the two end positions in the width direction of the fourth elongated holes, so as to improve the bending and deformation ability of the middle position.

[0049] In some embodiments, the fourth hollow area 121 can be configured as follows: the end-to-end overlapped portions of each row of fourth elongated holes together form a plurality of dumbbell-shaped first grid patterns distributed along the direction that meets the matching condition with the bending axis of the third bending portion S, and the middle portion of the first grid pattern is spindle-shaped. The shape of the first grid pattern can refer to Figure 2 The grid pattern in the middle rectangular frame C can be understood as a spindle shape that is large in the middle and small at both ends. The middle of the first grid pattern is spindle-shaped, and the entire first grid pattern is dumbbell-shaped.

[0050] Similarly, in some embodiments, the third hollow region 111 may include multiple rows of third elongated holes, each row consisting of at least two third elongated holes, with adjacent rows of third elongated holes staggered and arranged end-to-end in a direction that matches the bending axis of the third bent portion S. Based on this, the third hollow region 111 may be configured such that the overlapping portions of the rows of third elongated holes collectively form a plurality of dumbbell-shaped second grid patterns distributed along a direction that matches the bending axis of the third bent portion S, with the center portion of the second grid pattern being spindle-shaped.

[0051] See also Figure 3 and Figure 4 The first supporting layer 110 is located on the side of the second supporting layer 120 near the second bend of the flexible display 200. Therefore, the third hollow area 111 is obscured on both sides by the flexible display 200 and the second supporting layer 120, respectively. In some embodiments, the third hollow area 111 can be filled with a lubricant to reduce frictional resistance between the first supporting layer 110 and the second supporting layer 120 during bending and deformation of the third bend S. This also helps prevent abnormal noise from occurring during tangential displacement of the first supporting layer 110 and the second supporting layer 120 along the bending line. A variety of lubricant options are available, such as lubricating grease, lubricating oil, etc.

[0052] See also Figure 6 In some embodiments, a protrusion extending into the third hollow region 111 may be provided on the side of the second supporting layer 120 facing the first supporting layer 110. The protrusion has a height less than the thickness of the first supporting layer 110, so the protrusion does not contact the back of the flexible display 200. At the same time, the width of the protrusion (i.e., the dimension along the tangent direction of the bending line) is Figure 6 The vertical dimension (reflected in the figure) is smaller than the width of the third hollow region 111, thus preventing any localized misalignment between the first and second supporting layers 110, 120 along the tangential direction of the curve. The aforementioned protrusions allow the second supporting layer 120 to better shield the third hollow region 111, preventing dust and other fine impurities from entering the third hollow region 111. For example, if gap P is greater than 0 mm, even if fine dust enters gap P, the side surfaces of the protrusions on the second supporting layer 120 can provide a barrier, preventing it from penetrating deeper into the third hollow region 111. Furthermore, if the third hollow region 111 is filled with a lubricant, the side surfaces of the protrusions on the second supporting layer 120 facilitate guiding the lubricant into gap P for lubrication.

[0053] See also Figures 1 to 6The present application also provides a display assembly including a flexible display 200 and a support member 100 positioned on the back of the flexible display 200. The support member 100 includes at least a third bent portion S, which is connected to the second bent portion of the flexible display 200. The third bent portion S includes a first supporting layer 110 and a second supporting layer 120 stacked together. The first supporting layer 110 has a third hollowed-out region 111, and the second supporting layer 120 is disposed at least corresponding to the third hollowed-out region 111. The structural design and beneficial effects of the support member 100 can be found in the previous description of the support member 100 and will not be elaborated upon here.

[0054] See also Figure 9 In some embodiments, the display assembly may further include a cover film 300 made of an elastic material, connected to the side of the support member 100 facing away from the flexible display 200 and covering the third bent portion S. The cover film 300 is elastically deformable with the bending of the third bent portion S. The material of the support member 100 is harder than that of the cover film 300. The cover film 300 serves to block external dust and can be made of a variety of materials. For example, the cover film 300 can be configured as various types of TPE films (thermoplastic elastomers, also known as artificial rubber), with common examples being polyurethane (TPU) and terephthalate (TPEE).

[0055] exist Figure 3 In the exemplary embodiment, the display assembly can be configured to bend in the direction of arrow W, that is, the flexible display 200 can be bent inward toward the side where its display surface (the side for outputting display content) is located. Of course, in other embodiments, the display assembly can also be configured to bend in the opposite direction of arrow W, that is, the flexible display 200 can be bent outward toward the side where its back surface (the side facing away from the display surface) is located. Alternatively, the display assembly can be configured to bend both inward and outward. For example, the display assembly can be configured to bend and deform within a range of 0° to a preset angle, where the preset angle is greater than 180°.

[0056] See also Figure 7 and Figure 8The embodiment of the present application also provides a support member 100, which includes at least a first bending portion (not marked in the figure). The first bending portion is used to connect to the second bending portion of the flexible display screen 200 supported by the support member 100. The position of the first bending portion on the support member 100 and the bending and deformation function that can be achieved are consistent with the third bending portion S introduced above. Therefore, the position and bending and deformation function of the first bending portion can be understood by referring to the relevant content describing the third bending portion S, which will not be repeated here. The difference between the first bending portion and the third bending portion S is that the structural forms of the two are different. The first surface M1 of the second bending portion of the first bending portion facing the flexible display screen 200 has a first hollow area 101, and the second surface M2 of the second bending portion of the first bending portion facing away from the flexible display screen 200 has a second hollow area 102. The second hollow area 102 is not completely connected to the first hollow area 101. The differences between the first bending portion and the third bending portion S include at least one aspect: the first bending portion does not have a layered structure like the third bending portion S. That is, the first bending portion can be understood as a single-layer structure, except that the first bending portion has a first hollow area 101 and a second hollow area 102 on its first surface M1 and second surface M2, respectively. It should be understood that the presence of the first hollow area 101 and the second hollow area 102 facilitates bending of the first bending portion. In other words, one of the purposes of providing the first bending portion with these hollow areas is to achieve a more labor-saving bending and deformation function.

[0057] It should be noted that neither the first hollow area 101 nor the second hollow area 102 penetrates the thickness direction of the support member 100, that is, whether it is the first hollow area 101 or the second hollow area 102, the structure formed is a groove cavity with a depth less than the thickness of the support member 100. The second hollow area 102 is not completely connected to the first hollow area 101, which means that the groove cavity formed by the two can be completely disconnected or partially connected, wherein partially connected means that when observing through either one in a direction perpendicular to the surface of the support member 100, only a portion of the bottom of the other groove can be seen. Since this portion is smaller than the area of ​​the first surface M1 occupied by the first hollow area 101, even if the second hollow area 102 is partially connected to the first hollow area 101, compared with the case where the first hollow area 101 is directly opened along the thickness direction of the support member 100 (i.e., the case of a traditional mesh structure), it can also reduce the risk of foreign matter penetrating the first hollow area 101 and hitting the flexible display 200. Of course, it is easy to understand that when the second hollow area 102 is completely disconnected from the first hollow area 101, there is no part of the first hollow area 101 that is connected to the second surface M2 of the support member 100, and therefore completely eliminates the possibility of foreign matter from outside passing through the first hollow area 101 and hitting the flexible display screen 200. In this case, the purpose of setting the second hollow area 102 on the second surface M2 of the support member is to enable the support member 100 to obtain roughly the same bending and deformation ability as the case where the first hollow area 101 is directly opened along the thickness direction of the support member 100 (that is, the case of the traditional mesh structure), that is, one of the functions of the second hollow area 102 is to reduce the loss of bending and deformation ability of the support member 100 caused by the first hollow area 101 not being opened.

[0058] See also Figure 7 In some embodiments, in order to achieve that the second hollow area 102 is completely disconnected from the first hollow area 101, the first hollow area 101 and the second hollow area 102 can be arranged along a direction perpendicular to the thickness direction K of the flexible display screen 200 (i.e. Figure 7 In this case, the sum of the groove depths of the second hollow area 102 and the first hollow area 101 can be equal to or even greater than the thickness of the support member 100. Of course, in other embodiments, the first hollow area 101 and the second hollow area 102 can also be partially offset. In this case, in order to completely disconnect the second hollow area 102 from the first hollow area 101, the sum of the groove depths of the second hollow area 102 and the first hollow area 101 needs to be less than the thickness of the support member 100.

[0059] See also Figure 8In some embodiments, the first hollow area 101 and the second hollow area 102 can be configured such that: the two are partially connected, and the sum of the groove depths of the two is equal to the thickness of the support member 100. Of course, in other embodiments, the first hollow area 101 and the second hollow area 102 are partially connected, and the sum of the groove depths of the two can be greater than the thickness of the support member 100. For example, Figure 8 The groove depth (ie, the dimension along the thickness direction K) of the first hollow area 101 and / or the second hollow area 102 increases.

[0060] The shape of the first hollow area 101 on the first surface M1 of the support member 100 and the shape of the second hollow area 102 on the second surface M2 of the support member 100 can be flexibly set as needed. In some embodiments, the shape of the first hollow area 101 can be set with reference to the shape of the third hollow area 111 or the fourth hollow area 121 introduced above. For example, the first hollow area 101 can include a plurality of first elongated holes that meet the first condition, and the length direction of the first elongated holes and the bending axis of the first bending portion meet the matching condition. The first elongated holes meeting the first condition means that the length directions of the various first elongated holes are parallel to each other or the angle between them and the length direction of any other first elongated holes is not greater than a preset small angle, and the preset small angle can be, for example, an angle value of 5°, 8°, 10°, etc. It should be understood that the bending axis of the first bending portion is the motion plane formed by bending and deforming the first bending portion (for example Figure 2 The cross section formed by line BB in the figure is a straight line that meets the perpendicular condition. The matching condition between the length direction of the first elongated hole and the bending axis of the first bending portion means that the length direction of the first elongated hole is parallel to the bending axis or the angle between the two is no greater than a preset small angle, which can be, for example, an angle value of 5°, 8°, 10°, etc. Similarly, the second hollow area 102 can be configured with reference to the shape of the third hollow area 111 or the fourth hollow area 121 described above. For example, the second hollow area 102 includes multiple second elongated holes that meet the first condition, and the length direction of the second elongated holes meets the matching condition with the bending axis of the first bending portion. Of course, in other embodiments, the first hollow area 101 and the second hollow area 102 can be configured as other shapes, and the shape of the second hollow area 102 can be the same as or different from that of the first hollow area 101, for example, one of the two can be configured as an elongated hole shape and the other as a circular hole shape. It is understandable that multiple circular holes distributed in a dot matrix can also form a mesh structure that reduces bending resistance.

[0061] In some embodiments, the first hollow region 101 may include multiple rows of first elongated holes, each row consisting of at least two first elongated holes. Adjacent rows of first elongated holes are staggered and overlapped along a direction that satisfies the matching condition with the bending axis of the first bent portion. The staggered and overlapped arrangements can be understood by referring to the above description of the third hollow region 111 or the fourth hollow region 121, and will not be further elaborated here.

[0062] In some embodiments, the first elongated holes in the same column can be set to have the same width or slightly different widths. The equal width setting of the first elongated holes in the same column not only facilitates uniform production, but also helps to improve the rate of obtaining the hollow area on the surface of the support member 100, that is, it is conducive to setting as many columns of first elongated holes as possible within a limited area. In addition, the first elongated holes in different columns can be set to have the same width or slightly different widths, which is not limited in this application. At the same time, the spacing between adjacent columns can be equal or unequal, that is, in the width direction of the first elongated holes, the first elongated holes can be evenly distributed with equal density, or can be distributed with varying density. For example, the first elongated holes of adjacent columns are more densely arranged in the middle position of the bending portion of the support member 100 than at the two end positions in the width direction of the first elongated holes, so as to improve the bending deformation ability of the middle position.

[0063] In some embodiments, the first hollow area 101 can be configured as follows: the overlapping parts of the first long strip holes in each column together form a plurality of dumbbell-shaped first grid patterns distributed along the direction that meets the matching conditions with the bending axis of the first bending portion, and the middle part of the first grid pattern is spindle-shaped. The shape of the first grid pattern can refer to Figure 2 The grid pattern in the middle rectangular frame C can be understood as a spindle shape that is large in the middle and small at both ends. The middle of the first grid pattern is spindle-shaped, and the entire first grid pattern is dumbbell-shaped.

[0064] Similarly, in some embodiments, the second hollow region 102 may include multiple rows of second elongated holes, each row consisting of at least two second elongated holes, with adjacent rows of second elongated holes staggered and arranged end-to-end in a direction that satisfies the bending axis of the first bend. Based on this, the second hollow region 102 may be configured such that the overlapping portions of the second elongated holes in each row collectively form a plurality of dumbbell-shaped second grid patterns distributed along a direction that satisfies the bending axis of the first bend, with the center portion of the second grid pattern being spindle-shaped.

[0065] See also Figure 7 and Figure 8The present application also provides a display assembly including a flexible display 200 and a support member 100 positioned on the back of the flexible display 200. The support member 100 includes at least a first bend portion connected to a second bend portion of the flexible display 200. A first surface M1 of the first bend portion facing the second bend portion includes a first hollow region 101. A second surface M2 of the first bend portion facing away from the second bend portion includes a second hollow region 102. The second hollow region 102 is not fully connected to the first hollow region 101. The structural design and beneficial effects of the support member 100 can be found in the previous description of the support member 100 and will not be elaborated upon here.

[0066] In some embodiments, the display screen assembly may further include: a covering film 300, made of an elastic material, connected to the side of the support member 100 facing away from the flexible display screen 200 and covering the first bending portion, and the covering film 300 can elastically deform with the bending deformation of the first bending portion; the material of the support member 100 is harder than the material of the covering film 300.

[0067] Based on the display screen assembly provided by the present application, an embodiment of the present application further provides an electronic device, which can be of various types such as a folding mobile phone, a laptop computer, a folding tablet, etc. In some embodiments, the electronic device can be configured as follows: including a display screen assembly, the display screen assembly including a flexible display screen 200 and a support member 100 located on the back of the flexible display screen 200. The support member 100 includes at least a first bending portion, the first bending portion is connected to the second bending portion of the flexible display screen 200, the first surface M1 of the first bending portion facing the second bending portion has a first hollow area 101, and the second surface M2 of the first bending portion facing away from the second bending portion has a second hollow area 102, and the second hollow area 102 is not completely connected to the first hollow area 101.

[0068] In some embodiments, the electronic device can be configured as: including a display assembly, the display assembly including a flexible display 200 and a support member 100 located on the back of the flexible display 200, the support member 100 including at least a third bending portion S, the third bending portion S being connected to the second bending portion of the flexible display 200, the third bending portion S including a first supporting layer 110 and a second supporting layer 120 arranged in a stacked manner, the first supporting layer 110 having a third hollow area 111, and the second supporting layer 120 being arranged at least corresponding to the third hollow area 111.

[0069] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0070] The above description of the disclosed embodiments will enable those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is to be construed in the widest manner consistent with the principles and novel features disclosed herein.

Claims

1. A support member, comprising at least a first bending portion, wherein the first bending portion is used to connect to a second bending portion of a flexible display supported by the support member, wherein a first surface of the first bending portion facing the second bending portion has a first hollow area, and a second surface of the first bending portion facing away from the second bending portion has a second hollow area, and the second hollow area is not completely connected to the first hollow area.

2. The support member according to claim 1, wherein the first hollow area comprises a plurality of first elongated holes satisfying a first condition, and the length direction of the first elongated holes satisfies a matching condition with the bending axis of the first bending portion; and / or, The second hollow area includes a plurality of second elongated holes that meet the first condition, and the length direction of the second elongated holes meets the matching condition with the bending axis of the first bending portion.

3. The support member according to claim 2, wherein the first hollow area comprises a plurality of rows of the first elongated holes, each row is composed of at least two of the first elongated holes, and the first elongated holes in adjacent rows are staggered and overlapped along a direction that satisfies a matching condition with the bending axis of the first bending portion; and / or, The second hollow area includes multiple columns of the second elongated holes, each column is composed of at least two second elongated holes, and the second elongated holes in adjacent columns are staggered and overlapped along a direction that meets matching conditions with the bending axis of the first bending portion.

4. The support member according to claim 3, the overlapping parts of the first long strip holes in each column together form a plurality of dumbbell-shaped first grid patterns distributed along a direction that satisfies a matching condition with the bending axis of the first bending portion, and the middle part of the first grid pattern is spindle-shaped; and / or, The overlapping parts of the second long strip holes in each column together form a plurality of dumbbell-shaped second grid patterns distributed along a direction that satisfies the matching condition with the bending axis of the first bending portion, and the middle part of the second grid pattern is spindle-shaped.

5. A support member, comprising at least a third bending portion, wherein the third bending portion is used to connect to the second bending portion of a flexible display screen supported by the support member, wherein the third bending portion comprises a first supporting layer and a second supporting layer stacked together, wherein the first supporting layer has a third hollow area, and the second supporting layer is arranged at least corresponding to the third hollow area. 6 . The support member according to claim 5 , wherein the first support layer is located on a side of the second support layer close to the second bending portion, and the third hollow area is filled with a lubricating medium. 7 . The support member according to claim 5 , wherein the first support layer and the second support layer are configured as an integrally formed structure.

8. A display screen assembly, comprising a flexible display screen and a support member located on the back of the flexible display screen, the support member comprising at least a first bending portion, the first bending portion being connected to a second bending portion of the flexible display screen, the first bending portion having a first hollow area on a first surface facing the second bending portion, the first bending portion having a second hollow area on a second surface facing away from the second bending portion, and the second hollow area being not completely connected to the first hollow area.

9. A display screen assembly, comprising a flexible display screen and a support member located at the back of the flexible display screen, the support member comprising at least a third bending portion, the third bending portion being connected to the second bending portion of the flexible display screen, the third bending portion comprising a first supporting layer and a second supporting layer stacked, the first supporting layer having a third hollow area, and the second supporting layer being arranged at least corresponding to the third hollow area; The display screen assembly also includes: The covering film is made of elastic material, connected to the side of the support member facing away from the flexible display screen and covering the third bending portion, and the covering film can be elastically deformed along with the bending deformation of the third bending portion; the material of the support member is harder than that of the covering film.

10. An electronic device, comprising a display screen assembly, the display screen assembly comprising a flexible display screen and a support member located on the back of the flexible display screen, the support member comprising at least a first bending portion, the first bending portion being connected to a second bending portion of the flexible display screen, the first bending portion having a first hollow area on a first surface facing the second bending portion, the first bending portion having a second hollow area on a second surface facing away from the second bending portion, and the second hollow area being not completely connected to the first hollow area.

Images