Patent ID: 12216491

DETAILED DESCRIPTION

Technical solutions in some embodiments of the present disclosure will be described clearly and completely below with reference to the accompanying drawings. Obviously, the described embodiments are merely some but not all embodiments of the present disclosure. All other embodiments obtained on a basis of the embodiments of the present disclosure by a person of ordinary skill in the art shall be included in the protection scope of the present disclosure.

Unless the context requires otherwise, throughout the description and the claims, the term “comprise” and other forms thereof such as the third-person singular form “comprises” and the present participle form “comprising” are construed as an open and inclusive meaning, i.e., “including, but not limited to.” In the description, the terms such as “one embodiment”, “some embodiments”, “exemplary embodiments”, “example”, “specific example” or “some examples” are intended to indicate that specific features, structures, materials or characteristics related to the embodiment(s) or example(s) are included in at least one embodiment or example of the present disclosure. Schematic representations of the above terms do not necessarily refer to the same embodiment(s) or example(s). In addition, the specific features, structures, materials, or characteristics may be included in any one or more embodiments or examples in any suitable manner.

Below, the terms “first” and “second” are only used for descriptive purposes, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, a feature defined with “first” or “second” may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, the term “a/the plurality of” means two or more unless otherwise specified.

In the description of some embodiments, the term “connected” and its derivatives may be used. For example, the term “connected” may be used in the description of some embodiments to indicate that two or more components are in direct or indirect contact with each other. The embodiments disclosed herein are not necessarily limited to the contents herein.

The use of the phrase “applicable to” or “configured to” herein means an open and inclusive language, which does not exclude devices that are applicable to or configured to perform additional tasks or steps.

Exemplary embodiments are described herein with reference to sectional views and/or plan views as idealized exemplary drawings. The exemplary embodiments should not be construed as being limited to the shapes shown herein, but include shape deviations due to, for example, manufacturing.

Some embodiments of the present disclosure provide a frame. As shown inFIGS.1A and11, andFIGS.2A and2B, the frame1includes a support assembly11, two hemming brackets12, and at least two detachable fixing structures13.

The support assembly11extends in a first direction X, and the two hemming brackets12are respectively disposed at both sides of the support assembly11in the first direction X. Each hemming bracket12extends in a second direction Y, and an end of the hemming bracket12away from the support assembly11is a flanged portion121. The first direction X and the second direction Y are different, and a plane in which the first direction X and the second direction Y are located is perpendicular to a thickness direction Z of the frame1. In some embodiments, the first direction X is perpendicular to the second direction Y.

As shown inFIGS.2A and2B, each hemming bracket12is fixed to a corresponding end of the support assembly11through at least one detachable fixing structure13. That is, one of the two hemming brackets12is fixed to one end of the support assembly11through at least one detachable fixing structure13, and the other of the two hemming brackets12is fixed to the other end of the support assembly11through at least one detachable fixing structure13. Accordingly, the two hemming brackets12are connected through the support assembly11. In some embodiments, the hemming bracket12is fixed to the corresponding end of the support assembly11through a plurality of detachable fixing structures13.

One of each hemming bracket12and the end of the support assembly11has at least one via hole K, and each detachable fixing structure13passes through one via hole K to be fixed to the other of each hemming bracket12and the end of the support assembly11. In some examples, as shown inFIG.2A, the hemming bracket12has at least one via hole K, and each detachable fixing structure13passes through one via hole K to be fixed to the end of the support assembly11. In some other examples, as shown inFIG.2B, the end of the support assembly11has at least one via hole K, and each detachable fixing structure13passes through one via hole K to be fixed to the hemming bracket12. In a case where the hemming bracket12is fixed to the corresponding end of the support assembly11through a plurality of detachable fixing structures13, in some examples, one of the hemming bracket12and the end of the support assembly11has one via hole K, and each detachable fixing structure13passes through the via hole K to be fixed to the other of the hemming bracket12and the end of the support assembly11. In some other examples, one of the hemming bracket12and the end of the support assembly11has a plurality of via holes K, the plurality of via holes K are in a one-to-one correspondence with the plurality of detachable fixing structures13, and each detachable fixing structure13passes through a corresponding via hole K to be fixed to the other of the hemming bracket12and the end of the support assembly11.

There is a gap between an outer wall of the detachable fixing structure13and a hole wall of the via hole K, so as to enable the hemming bracket12and the support assembly11to move relatively when the support assembly11and the hemming bracket12are assembled, thereby adjusting a relative position between the hemming bracket and the support assembly11. In some embodiments, the hemming bracket12moves in the first direction X relative to the support assembly11when the support assembly11and the hemming bracket12are assembled, and after the adjustment of the relative position between the hemming bracket12and the support assembly11, the hemming bracket12and the support assembly11are completely locked through the detachable fixing structure13, so that a relative movement between the hemming bracket12and the support assembly11does not occur any more.

It will be noted that, a maximum distance that the hemming bracket12and the support assembly11may move relatively to each other may be set according to actual needs. Based on this, the set maximum distance may be achieved by reasonably setting a size of the via hole K and a size of the detachable fixing structure13.

When the frame1and a component to be fixed (e.g., a display assembly) are assembled, the component to be fixed is disposed at a side of the support assembly11in the thickness direction Z of the frame1, and flanged portions121of the two hemming brackets12are located at both sides of the component to be fixed in the first direction X. Each flanged portion121is opposite to one of two opposite side faces of the component to be fixed in the first direction X, so as to protect the side face. In some examples, a distance between the flanged portion121and the side face of the component to be fixed is less than or equal to a preset width. The preset width may be set according to actual conditions. For example, the preset width is less than or equal to 1 mm. Since the relative position of the hemming bracket12and the support assembly11in the first direction X is adjustable, a distance between the flanged portions121of the two hemming brackets12is adjustable. As a result, the distance between the flanged portion121and the side face of the component to be fixed may be adjusted, so that the distance may be adjusted to be within a desired range. Since there is an arrangement of the detachable fixing structure13in the frame1, when the frame1and the component to be fixed are assembled, the relative position of the hemming bracket12and the support assembly11in the first direction X may be adjusted at any time by operating the detachable fixing structure13.

In some embodiments, as shown inFIGS.2A and2B, the hemming bracket12further includes a connection portion122. The connection portion122and the flanged portion121form an L-shaped structure. The connection portion122and the end of the support assembly11are stacked in the thickness direction Z of the frame1, and the at least one via hole K is disposed in one of the connection portion122and the end of the support assembly11. In some examples, as shown inFIG.2A, the at least one via hole K is disposed in the connection portion122, and each detachable fixing structure13passes through one via hole K to be fixed to the end of the support assembly11. In some other examples, as shown inFIG.2B, the at least one via hole K is disposed in the end of the support assembly122, and each detachable fixing structure13passes through one via hole K to be fixed to the connection portion11.

As shown inFIG.3, in some examples, an angle formed by the connection portion122and the flanged portion121at a connection therebetween is an arc-shaped chamfering124. In this way, the connection portion122and the flanged portion121are smoothly transited at a connecting position, which avoids stress concentration, thereby improving structural performance. In addition, presence of burrs may also be avoided to prevent damage to the component to be fixed.

In some examples, as shown inFIGS.2A and3, the connection portion122includes a first connection sub-portion1221and a second connection sub-portion1222. The first connection sub-portion1221is located between the second connection sub-portion1222and the flanged portion121, and the first connection sub-portion1221is connected to the second connection sub-portion1222and the flanged portion121. The second connection sub-portion1222and the end of the support assembly11are stacked in the thickness direction Z of the frame1, and the first connection sub-portion1221and the support assembly11are non-overlapping in the thickness direction Z of the frame1. In embodiments in which the at least one via hole K is disposed in the connection portion122, the at least one via hole K is disposed in the second connection sub-portion1222.

In some embodiments, as shown inFIG.2A, at least one threaded hole is disposed at a surface of the end of the support assembly11facing the second connection sub-portion1222(for convenience of description, the threaded hole is hereinafter referred to as a first threaded hole111B). The detachable fixing structure13includes a fastener with a thread, and the fastener with the thread passes through one via hole K disposed in the second connection sub-portion1222to be fixedly connected to a corresponding first threaded hole111B. Herein, the first threaded hole111B may or may not penetrate the end of the support assembly11.

In some examples, the via hole K is a counter bore, and the fastener with the thread is placed in the counter bore. The fastener with the thread does not protrude out of a surface of the second connection sub-portion1222away from the support assembly11, so that an outer surface of the frame1at this position is flat.

In some other examples, the via hole K is a waist shaped hole, and a length of the via hole K in the first direction X is greater than a width of the via hole K in the second direction Y.

For example, the fastener with the thread is a bolt. The bolt includes a screw and a nut. The screw of the bolt extends into the first threaded hole111B after passing through the via hole K. By rotating the screw, a depth of the screw into the support assembly22gradually increases, and when a surface of the nut facing the screw is pressed against the second connection sub-portion1222, and a surface of the second connection sub-portion1222facing the support assembly11is also pressed against the support assembly11, the hemming bracket12is fixedly connected to the support assembly11.

As another example, the fastener with the thread is a double-end stud. The detachable fixing structure13further includes a nut, and the nut is sleeved on one end of the double-end stud. The other end of the double-end stud extends into the first threaded hole111B after passing through the via hole K. By rotating the screw, a depth of the double-end stud into the support assembly22gradually increases, and when a surface of the nut facing the support assembly11is pressed against the second connection sub-portion1222, and the surface of the second connection sub-portion1222facing the support assembly11is also pressed against the support assembly11, the hemming bracket12is fixedly connected to the support assembly11.

In some other embodiments, as shown inFIG.2B, the end of the support assembly11has at least one via hole K, and at least one second threaded hole123is disposed at a surface, of the connection portion122of the hemming bracket12, facing the end of the support assembly11. The detachable fixing structure13includes a fastener with a thread, and the fastener with the thread passes through one via hole K disposed at the end of the support assembly11to be fixedly connected to a corresponding second threaded hole123. Herein, the second threaded hole123may or may not penetrate the connection portion122. For an exemplary structure of the fastener with the thread, reference may be made to the above, which will not be repeated herein.

In some embodiments, as shown inFIGS.2A and2B, the support assembly11has an upper surface112and a lower surface113disposed oppositely. A portion of the lower surface113at each end of the support assembly11is recessed toward the upper surface112relative to a portion of the lower surface113in a remaining region of the support assembly11. The second connection sub-portion1222is located at a side of the lower surface113of the support assembly11. That is, the end of the support assembly11has a cutaway groove, and the second connection sub-portion1222extends into the cutaway groove. The connection portion122has a top surface122A and a bottom surface122B that are disposed oppositely. A portion of the top surface122A at the second connection sub-portion1222is in contact with a portion of the lower surface113of the support assembly11at the end of the support assembly11.

In some examples, as shown inFIG.2A, the bottom surface122B of the connection portion122and the portion of the lower surface113of the support assembly11in the remaining region of the support assembly11are located in a same plane, and the plane is perpendicular to the thickness direction Z of the frame1. After the hemming bracket12and the support assembly11are assembled, the bottom surface122B of the connection portion122and the portion of the lower surface113of the support assembly11in the remaining region of the support assembly11constitute a lateral outer surface of the frame1, so that the lateral outer surface of the frame1is flat. In this way, the lateral outer surface of the frame1may be directly placed on a mounting table, and the frame1may be used as an assembly jig of the component to be fixed, so that additional jigs are reduced.

In some embodiments, as shown inFIGS.1A and1B, the upper surface112of the support assembly11is an arc-shaped surface, an extending direction of an orthographic projection of each of curved sides C112of the arc-shaped surface on the plane in which the first direction X and the second direction Y are located is parallel to the first direction X, and the arc-shaped surface and the flanged portion121are located at the same side of the frame1. For example, the component to be fixed has a curved surface structure, and the arc-shaped surface may be suitably connected to the curved surface of the component to be fixed, and the flanged portion121protects a side face of the component to be fixed, so that the frame1may be applied to the component to be fixed with the curved surface structure.

In some examples, as shown inFIG.2A, a portion of the top surface122A of the connection portion122in the first connection sub-portion1221is an inclined surface, and the inclined surface is tangent to an edge of the arc-shaped surface of the support assembly11proximate to the inclined surface. In this way, the inclined surface and the edge of the arc-shaped surface may be smoothly transited without a sharp transition portion. Accordingly, when the component to be fixed is in contact with a transition portion of the inclined surface and the arc-shaped surface, the component to be fixed may not be scratched by the transition portion.

In some embodiments, as shown inFIGS.1A and1B, the support assembly11includes at least one support member111. As shown inFIGS.1A,1B, and4, each support member111is in an arcuate shape, and the upper surface112of the support member111is an arc-shaped surface. An extending direction of an orthographic projection of each of curved sides C112of the arc-shaped surface on the plane in which the first direction X and the second direction Y are located is parallel to the first direction X, and the arc-shaped surface and the flanged portion121are located at the same side of the frame1.

As shown inFIG.1A, in some examples, the support assembly11includes at least two support members111, and any two adjacent support members111of the at least two support members111are space apart in the second direction Y. An end of each support member111is fixed to one hemming bracket12through at least one detachable fixing structure13, and the other end is fixed to the other hemming bracket12through at least one detachable fixing structure13. Herein, the two hemming brackets12are connected through at least two support members111to form the frame1of a stable structure.

Based on this, in some examples, as shown inFIG.1A, the frame1further includes at least one bracket14, and each bracket14extends in the second direction Y. The at least one bracket14is disposed between the two hemming brackets12, and the at least one bracket14and the at least two support members111are fixedly connected.

In some examples, the at least one bracket14includes two brackets14, and the two brackets14are space apart in the first direction X. A distance between one bracket14and a corresponding hemming bracket12is equal to a distance between the other bracket14and the other corresponding hemming bracket12.

In some examples, as shown inFIGS.1A,1B, and4, at least one opening111A is disposed on each support member111, and the at least one opening111A penetrates the support member111in the second direction Y. By providing the opening111A, the support member111may be hollowed out at a position where the opening111A is located, so as to reduce a weight of the support member111on the premise that a structural performance of the support member111is not affected. Moreover, the opening111A may be used as a storage space for other components, so as to increase a storage capacity of the frame1. In addition, the opening111A may be used as a heat-dissipating channel to increase a speed of heat dissipation and enhance a heat-dissipating capability of the frame1.

In some examples, as shown inFIG.1A, a plurality of mounting holes15are disposed on the support assembly11, the bracket14and the hemming brackets12. The plurality of mounting holes15and the flanged portions121are located at the same side of the frame1. In this way, by providing a plurality of protrusions on the component to be fixed, when the frame1and the component to be fixed are assembled, the connection between the frame1and the component to be fixed may be made tight by matching the plurality of protrusions into the plurality of mounting holes15in a one-to-one correspondence manner, which avoids local warping.

In some examples, the plurality of mounting holes15are uniformly distributed, so that a connection force between the frame1and the component to be fixed is uniformly dispersed, and stress concentration is avoided.

For example, as shown inFIG.1A, N mounting holes15are disposed on each hemming bracket12, and the N mounting holes15are spaced apart in the second direction Y. N mounting holes15are disposed on each bracket14, and the N mounting holes15are spaced apart in the second direction Y. All the mounting holes15on the hemming brackets12and the brackets14are arranged in N rows, and a plurality of mounting holes15in each row are spaced apart in the first direction X. In a case where the support assembly11includes at least two support members111, M mounting holes15are disposed on each support member111, and the M mounting holes15are spaced apart in the first direction X. All the mounting holes15on the support members111are arranged in M columns, and a plurality of mounting holes15in each column are spaced apart in the second direction Y. For example, N is 3 and M is 11.

Some embodiments of the present disclosure provide a display apparatus. As shown inFIGS.5to7, the display apparatus100includes a display assembly2and the frame1described above. The display assembly2is the component to be fixed described above.

The display assembly2includes a display panel21and a backplate22. The backplate22is disposed on the support assembly11and is in contact with the support assembly11. The display panel21is located at a side of the backplate22away from the support assembly11. The two hemming brackets12are located at two edges of the display assembly2in the first direction X, and the flanged portion121of each hemming bracket12is opposite to one edge of the display assembly2in the first direction X to protect the edge.

The display panel21may be fixed to the backplate22in a variety of ways. For example, the display panel21bonds with the backplate22using an adhesive material.

In a case where a material of the backplate22is a metal conductive material, an insulating film layer is further disposed on a surface of the backplate22proximate to the display panel21, so as to prevent the backplate22from conducting electricity and affecting normal operation of the display panel21. The insulating film layer may be a film layer made of insulating tape or other insulating materials. In a case where the insulating film layer is double-sided tape, the display panel21may be directly disposed on the backplate22using the double-sided tape.

Since relative positions of the hemming brackets12and the support assembly11in the frame1in the first direction X may be adjusted, a distance between the flanged portion121and a side face of the display assembly2opposite to and proximate to the flanged portion121may be adjusted during a process of assembling the display assembly2and the frame1, so that the distance is adjusted to be within a desired range.

In some embodiments, the display assembly2is a curved display assembly.

In some examples, an extending direction of a side of a projection of the curved display assembly on a plane perpendicular to a thickness direction Z of the curved display assembly is parallel to the first direction X, and an extending direction of another side of the projection of the curved display assembly on the plane is parallel to the second direction Y, and the side and the another side are two adjacent sides of the projection of the curved display assembly on the plane. For example, an extending direction of long sides of the projection of the curved display assembly2on the plane is parallel to the first direction X, and an extending direction of short sides of the projection of the curved display assembly2on the plane is parallel to the second direction Y. As another example, an extending direction of a projection of each of curved sides of a surface of the curved display assembly2on the plane away from the frame1is parallel to the first direction X, and an extending direction of non-curved sides of the surface of the curved display assembly2away from the frame1is parallel to the second direction Y.

For the curved display assembly, both the display panel21and the backplate22are curved. In some examples, as shown inFIG.8A, the display panel21and the backplate22are assembled in a planar structure first. Then, when the display panel21and the backplate22that are assembled together are assembled with the frame1, the display panel21and the backplate22are bent to obtain the curved display assembly. Since materials of the display panel21and the backplate22are different, and characteristics of the display panel21and the backplate22are different, which leads to different deformation capacities of the display panel21and the backplate22during the bending process, so that the display panel21and the backplate22that are bent have certain misalignment on a side of the curved display assembly. Moreover, as bending degrees of the display panel21and the backplate22increase, the misalignment will become more and more serious.

For example, as shown inFIG.8B, the display panel21and the backplate22are bent downward. An extending direction of a projection of each of curved sides of a surface of the display panel21on the plane away from the frame1is parallel to the first direction X, and an extending direction of non-curved sides of the surface of the display panel21away from the frame1is parallel to the second direction Y. Since the deformation capacities of the display panel21and the backplate22are different during the bending process, there is a misalignment dx between a face of the display panel21and a corresponding face of the backplate22in the first direction X, so that the face of the display panel21cannot be aligned with the corresponding face of the backplate22.

Although the misalignment may be controlled during manufacturing of the display panel21and the backplate22, and a degree of the misalignment may be reduced to a certain extent, a phenomenon of the misalignment of the display panel21and the backplate22after bending is still inevitable because a curvature radius of the curved display assembly in actual bending and a curvature radius thereof in design cannot be completely matched. Meanwhile, misalignment degrees are poor in consistency, and different misalignments may be presented on different curved display assemblies.

As shown inFIG.7, when the frame1in the embodiments of the present disclosure is used to be assembled with the curved display assembly, since the relative positions of the hemming brackets12and the support assembly11are adjustable, the relative positions of the hemming brackets12and the support assembly11may be adjusted according to actual situations of the curved display assembly, thereby adjusting a distance G1between the flanged portion121and the side face of the curved display assembly. As a result, the distance G1may be adjusted to be within a prescribed range, so that gaps on edges of different display apparatuses100are substantially equal to meet consistency requirements of industrial production.

In some embodiments, as shown inFIGS.9and10, the display assembly2further includes two protection frames3. The two protection frames3are disposed at two edges, of the display assembly2, that are oppositely disposed in the second direction Y. Each protection frame3is in contact with one of two side faces, of the display panel21, that are oppositely disposed in the second direction Y. In this way, it is possible to reduce or eliminate a gap between the protection frame3and the side face of the display panel21, improve a reliability of the display apparatus100, and ensure an aesthetic appearance of the display device100.

In some examples, as shown inFIG.10, the protection frame3includes a side frame31and an elastic clamping portion32connected to the side frame. The elastic clamping portion32is clamped into the edge of the display assembly2and the gap between the backplate22and the display panels21. The side frame31is in contact with the side face of the display panel21. The elastic clamping portion32may be elastically deformed, which generates elastic force enabling the elastic clamping portion32to be fixed in the gap and not to be separated from the gap.

In some examples, as shown inFIG.10, the protection frame3further has a position-limiting platform33at an edge of a surface of the elastic clamping portion32away from the display panel21. An edge portion of the backplate22is disposed on the surface of the elastic clamping portion32away from the display panel21, and there is a gap dy between a side face of the backplate22located at the edge portion and a side wall of the position-limiting platform33. In this way, a squeeze between the protection frame3and the backplate22and a displacement of the protection frame3may be avoided, and a reliable contact between the protection frame3and the side face of the display panel21may be further ensured.

In some embodiments, as shown inFIGS.9and10, the display assembly2further includes at least one first driving circuit board4, and the at least one first driving circuit board4is disposed at at least one edge of two edges, of the display panel21, that are oppositely disposed in the second direction Y. In some examples, the display assembly2includes a plurality of first driving circuit boards4. The plurality of first driving circuit boards4are disposed at one of the two edges, of the display panel21, that are oppositely disposed in the second direction Y. In some other examples, as shown inFIG.9, the display assembly2includes a plurality of first driving circuit boards4. Some of the plurality of first driving circuit boards4is disposed at one of the two edges, of the display panel21, that are oppositely disposed in the second direction Y, and the rest of the plurality of first driving circuit boards4is disposed at the other of the two edges, of the display panel21, that are oppositely disposed in the second direction Y.

As shown inFIG.10, each first driving circuit board4is located on a side of the display panel21proximate to the backplate22and extends beyond the edge of the display panel21. The first driving circuit board4is located among the side frame, the elastic clamping portion32, and the display panel21. In this way, it is possible to ensure that the first driving circuit boards4will not be exposed outside the display assembly2, thus the first driving circuit boards4may be protected, and a tidy and aesthetic appearance of the display assembly2is ensured. For example, the first driving circuit board4includes a first film41and a source driving integrated circuit (IC)42disposed on the first film41, and the source driving IC42is located on a surface of the first film41away from the display panel21. When the first driving circuit board4is fixed, an end of the first film41is fixed to a back side of the display panel21facing the backplate22, and a remaining portion of the first film41extends out of the display panel21, and is then reversely folded to the back side of the display panel21.

In some embodiments, as shown inFIGS.9and11, the curved display assembly2further includes at least one second driving circuit board5, and the at least one second driving circuit board5is disposed at at least one of the two edges, of the display panel21, that are oppositely disposed in the first direction X. In some examples, as shown inFIG.9, the display assembly2includes a plurality of second driving circuit boards5. The plurality of second driving circuit boards5are disposed at one of the two edges, of the display panel21, that are oppositely disposed in the first direction X. In some other examples, the display assembly2includes a plurality of second driving circuit boards5. Some of the plurality of second driving circuit boards5is disposed at one of the two edges, of the display panel21, that are oppositely disposed in the first direction X, and the rest of the plurality of second driving circuit boards5is disposed at the other of the two edges, of the display panel21, that are oppositely disposed in the first direction X.

As shown inFIG.11, each second driving circuit board5is located on the side of the display panel21proximate to the backplate22, and an orthographic projection of the second driving circuit board5on the backplate22is located within a range of an orthographic projection of the display panel21on the backplate22. The second driving circuit board5does not extend beyond the edge of the display panel21, and is always shielded by the display panel21and the backplate22, and cannot be seen from the outside. Based on this, there is no need to design a corresponding structure at the flanged portion121of the hemming bracket12to shield and avoid the second driving circuit board5. For example, the second driving circuit board5includes a second film51and a source driving IC52disposed on the second film51, and the source driving IC52is located on a surface of the second film51away from the display panel21.

In some embodiments, as shown inFIG.1A, in a case where a plurality of mounting holes15are disposed on the frame1, as shown inFIG.12, a plurality of protrusions221are disposed on a surface of the backplate22facing the support assembly11. The plurality of protrusions221are configured to cooperate with the plurality of mounting holes15, so that the frame1and the backplate22may be positioned quickly. For example, as shown inFIG.13, the plurality of protrusions221are in a one-to-one correspondence with the plurality of mounting holes15, and each protrusion221may be inserted into one mounting hole15to form a shaft-hole type positioning relationship.

In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in any suitable manner.

The foregoing descriptions are merely specific implementations of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Changes or replacements that a person skilled in the art could conceive of within the technical scope of the present disclosure shall be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.