CN113450643B

CN113450643B - Display module, preparation method thereof, middle frame structure and display device

Info

Publication number: CN113450643B
Application number: CN202110859901.6A
Authority: CN
Inventors: 胡义平; 杨光; 吴时锋; 刘兴强; 陈存领
Original assignee: BOE Technology Group Co Ltd; K Tronics Suzhou Technology Co Ltd
Current assignee: BOE Technology Group Co Ltd; K Tronics Suzhou Technology Co Ltd
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2023-05-09
Anticipated expiration: 2041-07-28
Also published as: CN113450643A

Abstract

The embodiment of the application provides a display module, a preparation method thereof, a middle frame structure and a display device. The middle frame structure comprises: a first middle frame extending along a first direction and a second middle frame extending along a second direction; the end of the first middle frame is provided with a first groove, a first tooth part and a first clamping groove, and the end of the second middle frame is provided with a second groove, a second tooth part and a first clamping buckle. In this embodiment, first tooth portion holds in first recess, and second tooth portion holds in the second recess, and the third direction of realizing first center and second center in perpendicular first direction and second direction is aimed at, aligns in the second direction through the joint of first buckle and first draw-in groove, aligns in the connection structure through first center and second center respectively in two directions, has improved the precision of center concatenation.

Description

Display module, preparation method thereof, middle frame structure and display device

Technical Field

The application relates to the technical field of display, in particular to a display module, a preparation method of the display module, a middle frame structure and a display device.

Background

At present, the main component of the display module includes a frame structure and an optical component fixed in the frame structure, the frame structure includes a back plate and a middle frame structure, the middle frame structure includes a bearing structure for bearing a display panel, and the middle frame structure is obtained by a splicing mode.

However, the splicing accuracy of the existing middle frame structure is poor.

Disclosure of Invention

The application provides a display module, a preparation method thereof, a middle frame structure and a display device aiming at the defects of the prior art, and is used for solving the technical problem that the splicing precision of the middle frame structure is poor in the prior art.

In a first aspect, embodiments of the present application provide a middle frame structure, including: a first middle frame extending along a first direction and a second middle frame extending along a second direction; the first middle frame comprises a first connecting plate, a first side plate and a second connecting plate which are sequentially connected, wherein the first connecting plate and the second connecting plate are oppositely arranged and form a first cavity with the first side plate; the first connecting plate comprises a first sub-connecting plate and a second sub-connecting plate which are stacked; the second middle frame comprises a third connecting plate, a second side plate and a fourth connecting plate which are sequentially connected, wherein the third connecting plate and the fourth connecting plate are oppositely arranged and form a second cavity with the second side plate; the third connecting plate comprises a third sub-connecting plate and a fourth sub-connecting plate which are stacked; the second tooth part arranged at one end of the third sub-connecting plate is accommodated in the first groove formed at one end of the first sub-connecting plate, and the first tooth part arranged at one end of the second sub-connecting plate is accommodated in the second groove formed at one end of the fourth sub-connecting plate; the first buckle that fourth connecting plate one end set up is clamped in the first draw-in groove that second connecting plate one end was seted up.

Optionally, the fourth tooth portion that fourth sub-connecting plate one end set up is held in the third recess that second sub-connecting plate one end was seted up, the third tooth portion that first sub-connecting plate one end set up is held in the fourth recess that third sub-connecting plate one end was seted up.

Optionally, the first clamping groove comprises a first side wall surface and a second side wall surface; the first side wall surface is obliquely arranged, and an included angle between the first side wall surface and a plane parallel to the first side plate in a direction away from the second side wall surface is not more than 2 degrees; the second side wall surface is obliquely arranged, and an included angle between the second side wall surface and a plane parallel to the first side plate in a direction away from the first side wall surface is not more than 5 degrees.

Optionally, the second connecting plate and the fourth connecting plate further include a first mounting hole, and an axial direction of the first mounting hole extends along a third direction, and the third direction is perpendicular to the first direction and the second direction.

Optionally, the second connecting plate comprises a positioning clamping groove and a positioning hole; the bottom of the positioning clamping groove faces away from the first side plate and is used for being clamped with the positioning protrusion of the backboard; the axial direction of the positioning hole extends along the third direction and is used for being clamped with the positioning buckle of the backboard.

Optionally, a distance from a side edge of the second connecting plate away from the first side plate to the first side plate is greater than a distance from a side edge of the first connecting plate away from the first side edge to the first side plate.

Optionally, a distance from a side edge of the fourth connecting plate away from the second side plate to the second side plate is greater than a distance from a side edge of the third connecting plate away from the second side plate to the second side plate.

Optionally, the ends of the first side plate and the second side plate, which are close to each other, are provided with arc surfaces.

Optionally, the middle frame structure further comprises a third middle frame extending along the second direction; the structure of the third middle frame is mirror-symmetrical with the structure of the second middle frame; the third middle frame, the first middle frame and the second middle frame are sequentially connected, the third middle frame and the second middle frame are oppositely arranged and form a third cavity with the first middle frame, the third middle frame comprises a fifth connecting plate, a third side plate and a sixth connecting plate which are sequentially connected, the structure of the fifth connecting plate is identical to the structure of the third connecting plate of the second middle frame, the structure of the sixth connecting plate is identical to the structure of the fourth connecting plate of the second middle frame, and structural mirror symmetry means that, for example, when the second connecting plate of the first middle frame, the fourth connecting plate of the second middle frame and the sixth connecting plate of the third middle frame are arranged on the same surface and are fixedly connected with the back plate respectively.

Optionally, the middle frame structure further comprises a third middle frame extending along the second direction; the structure of the third middle frame is the same as that of the second middle frame; the third middle frame, the first middle frame and the second middle frame are sequentially connected, and the third middle frame and the second middle frame are oppositely arranged and form a fourth cavity with the first middle frame.

Optionally, the third middle frame includes a fifth connecting plate, a third side plate and a sixth connecting plate which are sequentially connected, wherein the fifth connecting plate and the sixth connecting plate are oppositely arranged and form a fifth cavity with the third side plate; the fifth connecting plate comprises a fifth sub-connecting plate and a sixth sub-connecting plate which are stacked; the second connecting plate comprises a seventh sub connecting plate and an eighth sub connecting plate which are stacked; a fifth tooth part arranged at one end of the fifth sub-connecting plate is accommodated in a fifth groove formed in one end, far away from the first clamping groove, of the seventh sub-connecting plate, and a sixth tooth part arranged at one end, far away from the first clamping groove, of the eighth sub-connecting plate is accommodated in a sixth groove formed in one end of the sixth sub-connecting plate; the second buckle that sixth connecting plate one end set up is clamped in the second draw-in groove that first connecting plate other end was seted up.

Optionally, the fifth connecting plate includes a third mounting hole, an axial direction of the third mounting hole extends along a thickness direction of the fifth connecting plate, and the thickness direction of the fifth connecting plate is perpendicular to the first direction and the second direction.

Optionally, a distance from a side edge of the fifth connecting plate away from the third side plate to the third side plate is greater than a distance from a side edge of the sixth connecting plate away from the third side plate to the third side plate.

In a second aspect, an embodiment of the present application provides a display module, including a back plate and any one of the middle frame structures provided in the first aspect of the present application; the backboard is assembled on one side of the middle frame structure.

Optionally, the back plate includes a second mounting hole configured to be opposite to the first mounting hole of the middle frame structure; the axial direction of the first mounting hole and the axial direction of the second mounting hole are parallel and not overlapped before the screws are mounted, the axial direction of the second mounting hole is far away from the second side plate, and the axial direction of the first mounting hole is close to the second side plate; the axial direction of the first mounting hole and the axial direction of the second mounting hole coincide after the screw is mounted.

Optionally, the display module includes: a light guide plate, an optical film and a rubber frame; the light guide plate and the optical film are arranged on one side of the backboard; the rubber frame is arranged on one side of the light guide plate and one side of the optical film, which is far away from the backboard.

In a third aspect, an embodiment of the present application provides a display device, including a display module set according to any one of the second aspects of the embodiments of the present application; the display panel is assembled on the display side of the display module.

In a fourth aspect, an embodiment of the present application provides a method for preparing a display module provided in the second aspect of the embodiment of the present application, including: after the first middle frame extends along the first direction, the first middle frame is assembled to one side of the backboard; extending the second middle frame along a second direction; aligning a second tooth part arranged at one end of a third sub-connecting plate of the second middle frame with a first groove formed at one end of a first sub-connecting plate of the first middle frame, aligning a first tooth part arranged at one end of the second sub-connecting plate of the first middle frame with a second groove formed at one end of a fourth sub-connecting plate of the second middle frame, and aligning a first buckle arranged at one end of a fourth connecting plate of the second middle frame with a first clamping groove formed at one end of a second connecting plate of the first middle frame; and inserting the second tooth part into the first groove, inserting the first tooth part into the second groove, and clamping the first buckle into the first clamping groove.

Optionally, after the second tooth portion is inserted into the second groove while the second tooth portion is inserted into the first groove and the first buckle is clamped in the first clamping groove, the method further includes: the axial direction of the first mounting holes of the first middle frame and the second middle frame is parallel to and is not coincident with the axial direction of the second mounting holes of the back plate, the axial direction of the second mounting holes is far away from the second side plate, the axial direction of the first mounting holes is close to the second side plate and is used for mounting screws, and the axial directions of the first mounting holes and the second mounting holes after the screws are coincident.

Optionally, after the first middle frame is extended along the first direction, before being assembled to one side of the back plate, the method further includes: a light guide plate and an optical membrane are arranged on one side of the backboard; and a rubber frame is arranged on one side of the light guide plate and one side of the optical film, which is far away from the back plate.

The beneficial technical effects that technical scheme that this application embodiment provided brought include:

the end part of the first middle frame extending along the first direction is provided with a first groove, a first tooth part and a first clamping groove, and the end part of the second middle frame extending along the second direction is provided with a second groove, a second tooth part and a first clamping buckle; the first tooth part is accommodated in the second groove, and the second tooth part is accommodated in the first groove, so that the first middle frame and the second middle frame are accurately aligned in the direction perpendicular to the first direction and the second direction; in addition, the first middle frame and the second middle frame are accurately aligned in the second direction through the clamping connection of the first buckle and the first clamping groove; the connecting structure through first center and second center realizes aligning in two directions, realizes the accurate location and the concatenation of center concatenation, has reduced the degree of difficulty of center concatenation, has improved the precision of center concatenation, can reduce the processing degree of difficulty and the concatenation degree of difficulty of various center, can reduce manufacturing cost, has improved the outward appearance aesthetic measure of center concatenation.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic structural diagram of a middle frame structure according to an embodiment of the present application;

FIG. 2 is a back view of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 1 at A;

FIG. 4 is a schematic view of the structure in the direction C in FIG. 3;

FIG. 5 is a schematic diagram showing a separation structure of the first middle frame and the second middle frame in FIG. 3;

FIG. 6 is a schematic diagram showing a separation structure of the first middle frame and the second middle frame in FIG. 3 from another view angle;

fig. 7 is a schematic structural diagram of one end of a second middle frame of a middle frame structure according to an embodiment of the present disclosure;

fig. 8 is a schematic structural diagram of one end of a first middle frame of a middle frame structure according to an embodiment of the present disclosure;

FIG. 9a is an enlarged view of a portion of FIG. 2B;

FIG. 9b is an enlarged view of a portion of FIG. 9a at I;

fig. 10 is a schematic diagram of positions of a third middle frame and a first middle frame of a middle frame structure according to an embodiment of the present application;

Fig. 11 is a schematic structural diagram of a display module according to an embodiment of the present application;

FIG. 12 is a left side view of FIG. 11;

FIG. 13 is an enlarged view of a portion of FIG. 11 at F;

FIG. 14 is an enlarged view of a portion of FIG. 11 at E;

FIG. 15 is a schematic view of the H-direction structure of FIG. 14;

FIG. 16 is an enlarged view of a portion of FIG. 11 at D;

FIG. 17 is a schematic view of the structure in the G direction of FIG. 16;

fig. 18 is a flow chart of a method for manufacturing a display module according to an embodiment of the present application.

The reference numerals are introduced as follows:

100-a first middle frame; 110-a first connection plate; 111-a first sub-connection board; 1111-a first groove; 1112-third teeth; 112-a second sub-connection board; 1121-a third groove; 1122-first tooth; 120-a first side plate; 121-an arc surface; 130-a second connection plate; 131-a first clamping groove; 1311—a first groove wall surface; 1312-a second groove wall surface; 132-positioning a clamping groove; 133-locating holes;

200-a second middle frame; 210-a third connection plate; 211-a third sub-connection board; 2111-second teeth; 2112-fourth grooves; 212-a fourth sub-connection board; 2121-fourth teeth; 2122-second groove; 220-a second side panel; 230-a fourth connection plate; 231-first catch;

300-a third middle frame; 310-a fifth connection plate; 320-a third side panel; 330-a sixth connection plate;

400-backboard; 410-positioning the protrusions; 420-positioning buckle; 430-a second mounting hole;

500-a first mounting hole;

600-light guide plate;

700-an optical film;

800-a rubber frame;

900-screws;

1000-reflecting sheet;

1100-a display panel;

l1-the axial direction of the second mounting hole;

l2-axial direction of the first mounting hole.

Detailed Description

Examples of embodiments of the present application are illustrated in the accompanying drawings, in which like or similar reference numerals refer to like or similar elements or elements having like or similar functionality throughout. Further, if detailed description of the known technology is not necessary for the illustrated features of the present application, it will be omitted. The embodiments described below by referring to the drawings are exemplary only for the purpose of illustrating the present application and are not to be construed as limiting the present application.

It will be understood by those skilled in the art that all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. The term "and/or" as used herein includes all or any element and all combination of one or more of the associated listed items.

An embodiment of the present application provides a middle frame structure, where the middle frame structure is shown in fig. 1-6, fig. 1 is a schematic structural diagram of the middle frame structure provided in the embodiment of the present application, if a display panel 1100 is disposed on the middle frame in fig. 1, that is, a top view of the middle frame seen from one side of the display panel 1100 at this time, and fig. 2 is a back view of fig. 1, that is, a top view of the middle frame seen from one side of the back plate 400 if the back plate 400 of the backlight module is assembled. The middle frame structure mainly comprises a first middle frame 100 extending along a first direction and a second middle frame 200 extending along a second direction; the first middle frame 100 includes a first connection plate 110, a first side plate 120 and a second connection plate 130 connected in sequence, the first connection plate 110 and the second connection plate 130 being disposed opposite to each other and forming a first cavity with the first side plate 120; the first connection board 110 includes a first sub connection board 111 and a second sub connection board 112 which are stacked; the second middle frame 200 includes a third connection plate 210, a second side plate 220 and a fourth connection plate 230 connected in sequence, the third connection plate 210 and the fourth connection plate 230 being disposed opposite to each other and forming a second cavity with the second side plate 220; the third connection board 210 includes a third sub-connection board 211 and a fourth sub-connection board 212 which are stacked; the second tooth portion 2111 provided at one end of the third sub-connecting plate 211 is accommodated in the first groove 1111 provided at one end of the first sub-connecting plate 111, and the first tooth portion 1122 provided at one end of the second sub-connecting plate 112 is accommodated in the second groove 2122 provided at one end of the fourth sub-connecting plate 212; the first buckle 231 disposed at one end of the fourth connecting plate 230 is clamped in the first clamping groove 131 disposed at one end of the second connecting plate 130.

Specifically, one end of the first middle frame 100 extends to the other end of the first middle frame 100 in a first direction, one end of the second middle frame 200 extends to the other end of the second middle frame 200 in a second direction, the first direction may be perpendicular to the second direction, one end of the first middle frame 100 is spliced with one end of the second middle frame 200, the thickness directions of the first connection plate 110 and the third connection plate 210 are perpendicular to the first direction and the second direction, the stacked first sub-connection plate 111 and second sub-connection plate 112 are included in the thickness direction of the first connection plate 110, and the stacked third sub-connection plate 211 and fourth sub-connection plate 212 are included in the thickness direction of the third connection plate 210.

As shown in fig. 5 to 7, one ends of the first sub-connection plate 111 and the second sub-connection plate 112 are offset in the thickness direction of the first connection plate 110, a stepped structure is formed such that a first groove 1111 is formed at one end of the first sub-connection plate 111 such that a first tooth 1122 is formed at one end of the second sub-connection plate, a region where projections of the first sub-connection plate 111 in the thickness direction of the first connection plate 110 and projections of the second sub-connection plate 112 in the thickness direction of the first connection plate 110 do not overlap is the first tooth 1122, or alternatively, if the thickness of the first connection plate 110 is a, the depth of the first groove 1111 is a1, and the thickness of the first tooth 1122 is a2, a=a1+a2.

The third sub-connection plate 211 and the fourth sub-connection plate 212 have a stepped structure in which a step is formed at an end of the third connection plate 210 in a thickness direction of the third connection plate 210 such that a second tooth portion 2111 is formed at one end of the third sub-connection plate 211 such that a second groove 2122 is formed at one end of the fourth sub-connection plate, a region where projections of the third sub-connection plate 211 in the thickness direction of the third connection plate 210 and projections of the fourth sub-connection plate 212 in the thickness direction of the third connection plate 210 do not overlap is the second tooth portion 2111, or if the thickness of the third connection plate 210 is b, alternatively, the depth of the second groove 2122 is b1 and the thickness of the second tooth portion 2111 is b2, b=b1+b2. Optionally, a=b, a2=b1, a1=b2, so that the first middle frame and the second middle frame can be more flat when assembled at one side of the first connecting plate, the module structure is more attractive, and the subsequent assembly of the display panel 1100 is easier.

By the first tooth 1122 being received in the second groove 2122 and the second tooth 2111 being received in the first groove 1111 such that the first sub-connecting plate 111 is connected opposite to the third sub-connecting plate 211 and the second sub-connecting plate 112 is connected opposite to the fourth sub-connecting plate 212, the first tooth 1122 and the second tooth 2111 are at least partially connected in a direction perpendicular to the first direction and the second direction, and alignment of the first middle frame 100 and the second middle frame 200 in a direction perpendicular to the first direction and the second direction is achieved.

The bottom of the first clamping groove 131 at one end of the second connecting plate 130 faces to the first direction, so that the groove wall surface is intersected with the second direction; the first buckle 231 of fourth connecting plate 230 one end is protruding in the side of fourth connecting plate 230 in first orientation direction for first buckle 231's at least one side intersects with the second direction, and first buckle 231 joint is in first draw-in groove 131, and the cell wall face that intersects with the second direction respectively and at least one side of first buckle 231 form limit structure in the second direction, have realized that first center 100 and second center 200 are aimed at in the second direction.

In the present embodiment, the end of the first middle frame 100 extending along the first direction has a first groove 1111, a first tooth 1122 and a first clamping groove 131, and the end of the second middle frame 200 extending along the second direction has a second groove 2122, a second tooth 2111 and a first buckle 231; by the first tooth 1122 being received in the second groove 2122 and the second tooth 2111 being received in the first groove 1111, precise alignment of the first and second

middle frames

100, 200 in a direction perpendicular to the first and second directions is achieved; in addition, by the clamping connection between the first buckle 231 and the first clamping groove 131, the first middle frame 100 and the second middle frame 200 are accurately aligned in the second direction; the connecting structure of the first middle frame 100 and the second middle frame 200 is used for realizing alignment in two directions, realizing accurate positioning and splicing of the middle frame splicing, reducing the difficulty of middle frame splicing, improving the accuracy of middle frame splicing, reducing the processing difficulty and splicing difficulty of various middle frames, reducing the production cost and improving the appearance attractiveness of middle frame splicing.

In some embodiments, as shown in fig. 5-7, the fourth tooth 2121 disposed at one end of the fourth sub-connecting plate 212 is received in the third groove 1121 disposed at one end of the second sub-connecting plate 112, and the third tooth 1112 disposed at one end of the second sub-connecting plate 112 is received in the fourth groove 2112 disposed at one end of the fourth sub-connecting plate 212, or if the thickness of the third connecting plate 210 is b, then optionally the thickness of the fourth tooth 2121 is b4, the depth of the fourth groove 2112 is b3, optionally b3+b4=b, optionally b4=b1, b2=b3.

Specifically, there is a difference in the thickness direction of the first sub-connection plate 111 and the second sub-connection plate 112 at one end thereof, a stepped structure is formed such that a third groove 1121 is formed at one end of the second sub-connection plate 112 such that a third tooth 1112 is formed at one end of the first sub-connection plate, a region where the projection of the first sub-connection plate 111 in the thickness direction of the first connection plate 110 and the projection of the second sub-connection plate 112 in the thickness direction of the first middle frame 100 do not overlap is the third tooth 1112, or if the thickness of the first connection plate 110 is a, the thickness of the third tooth 1112 is a4, the depth of the third groove 1121 is a3, or, alternatively, a3+a4=a 1, a2=a3. The third sub-connection plate 211 and the fourth sub-connection plate 212 have a stepped structure in which a step is formed at an end of the third connection plate 210 in a thickness direction of the third connection plate 210 such that a fourth tooth 2121 is formed at one end of the fourth sub-connection plate 212 such that a fourth groove 2112 is formed at one end of the third sub-connection plate 211, and a region where projections of the third sub-connection plate 211 in the thickness direction of the third connection plate 210 and projections of the fourth sub-connection plate 212 in the thickness direction of the third connection plate 210 do not overlap is the fourth tooth 2121.

By the third tooth portion 1112 being received in the third recess 1121 and the fourth tooth portion 2121 being received in the fourth recess 2112 such that the first sub-connecting plate 111 is connected opposite to the third sub-connecting plate 211 and the second sub-connecting plate 112 is connected opposite to the fourth sub-connecting plate 212, the third tooth portion 1112 and the fourth tooth portion 2121 are at least partially connected in a direction perpendicular to the first direction and the second direction, and alignment of the first middle frame 100 and the second middle frame 200 in a direction perpendicular to the first direction and the second direction is achieved.

In a possible embodiment, the projections of the first teeth 1122 and the third teeth 1112 in the thickness direction of the first connection plate 110 do not overlap; projections of the first groove 1111 and the third groove 1121 in the thickness direction of the first connection plate 110 do not overlap; projections of the second tooth portion 2111 and the fourth tooth portion 2121 in the thickness direction of the second connecting plate 130 do not overlap; the projections of the second groove 2122 and the fourth groove 2112 in the thickness direction of the second connecting plate 130 do not overlap.

In this embodiment, two offset structures are respectively disposed at the ends of the first connecting plate 110 and the second connecting plate 130, the first tooth portion 1122 is accommodated in the second groove 2122, the second tooth portion 2111 is accommodated in the first groove 1111, the third tooth portion 1112 is accommodated in the fourth groove 2112, and the fourth tooth portion 2121 is accommodated in the third groove 1121, so as to align the first middle frame 100 and the second middle frame 200 in a direction perpendicular to the first direction and the second direction.

In some embodiments, as shown in fig. 8, the first card slot 131 includes a first sidewall surface 1311 and a second sidewall surface 1312; the first side wall surface 1311 is obliquely arranged, and an included angle between the first side wall surface 1311 and a plane parallel to the first side plate 120 in a direction away from the second side wall surface 1312 is not more than 2 degrees; the second side wall surface 1312 is disposed obliquely, and an included angle between the second side wall surface 1312 and a plane parallel to the first side plate 120 in a direction away from the first side wall surface 1311 is not more than 5 degrees.

In the direction away from the bottom of the first slot 131, the first side wall surface 1311 and the second side wall surface 1312, which are correspondingly far away from each other, form an opening which is wider and wider, so that the protruding portion of the first buckle 231 is inserted into the first slot 131 from multiple angles, and the first side wall surface 1311 and the second side wall surface 1312 slide relatively, so that the difficulty of splicing the first middle frame 100 and the second middle frame 200 in the second direction is reduced, and the splicing accuracy in the second direction is improved.

In a possible embodiment, the depth of the edge of the first buckle 231 is less than or equal to the depth of the first slot 131.

In some embodiments, as shown in fig. 9a, fig. 9a is a partial enlarged view of a top view of a side of the assembled back plate, and the second connection plate 130 and the fourth connection plate 230 include first mounting holes 500, and an axial direction of the first mounting holes 500 extends along a third direction, which is perpendicular to the first direction and the second direction.

Specifically, the thickness directions of the first connection plate 110, the second connection plate 130, the third connection plate 210 and the fourth connection plate 230 are the same, and the third direction is the thickness direction of the first connection plate 110, the second connection plate 130, the third connection plate 210 or the fourth connection plate 230, and is perpendicular to both the first direction and the second direction. First mounting holes 500 are formed through the second connecting plate 130 and the fourth connecting plate 230, the first mounting holes 500 are salad holes, and the first mounting holes 500 are used for mounting countersunk screws 900 so as to realize connection of the first middle frame 100 and the second middle frame 200 with the backboard 400.

In some embodiments, as shown in fig. 11 and 13, the second connecting plate 130 includes a positioning slot 132 and a positioning hole 133; the bottom of the positioning slot 132 faces away from the first side plate 120, and is used for being clamped with the positioning protrusion 410 of the back plate 400; the axial direction of the positioning hole 133 extends along the third direction, and is used for being clamped with the positioning buckle 420 of the back plate 400.

Specifically, the second connecting plate 130 is uniformly provided with a plurality of positioning slots 132 and a plurality of positioning holes 133, the positioning slots 132 and the positioning holes 133 are spaced apart, and the first middle frame 100 is fixedly connected with the back plate 400 through the positioning slots 132 and the positioning holes 133. The positioning clamping groove 132 penetrates through the second connecting plate 130 along the third direction, the groove wall of the second connecting plate 130 extends to the side edge of the second connecting plate 130 away from the first side wall, the groove bottom of the positioning clamping groove 132 faces away from the first side plate 120, and the positioning protrusion 410 of the backboard 400 is inserted into the positioning clamping groove 132 along the direction facing the first side plate 120; the positioning hole 133 penetrates the second connecting plate 130 along the third party, so that the positioning buckle 420 of the back plate 400 is inserted into the positioning hole 133 along the third party and is clamped with the positioning hole 133.

In some embodiments, as shown in fig. 5-7, the distance from the side edge of the second connecting plate 130 away from the first side plate 120 to the first side plate 120 is greater than the distance from the side edge of the first connecting plate 110 away from the first side edge to the first side plate 120, which has the advantage of providing enough space for the first clamping groove 131, the positioning clamping groove 132 and the positioning hole 133.

Specifically, in the second reverse direction, the length of the second connection plate 130 is greater than the length of the first connection plate 110. The first cavity of the first middle frame 100 is configured to receive a side edge of the back plate 400, and the longer second connection plate 130 provides sufficient support for supporting the back plate 400.

In some embodiments, the distance from the side edge of the fourth connecting plate 230 away from the second side plate 220 to the second side plate 220 is greater than the distance from the side edge of the third connecting plate 210 away from the second side edge to the second side plate 220, which has the advantage of providing enough space for the first buckle 231 and the positioning slot 132.

Specifically, in the first reverse direction, the length of the fourth connection plate 230 is greater than the length of the third connection plate 210. The second cavity of the second middle frame 200 is configured to receive a side edge of the back plate 400, and the longer fourth connection plate 230 provides sufficient support for supporting the back plate 400.

In some embodiments, as shown in fig. 9a-9b, the end of the first side panel 120 and the second side panel 220 that is adjacent has an arcuate surface 121.

Specifically, the first side plate 120 extends away from one surface of the first connecting plate 110 and the second connecting plate 130 and is connected with one surface of the first side plate 120, which is close to the first connecting plate 110 and the second connecting plate 130, so that an arc-shaped surface is formed at one end, which is close to the first side plate 120 and the second side plate 220, the arc-shaped surface 121 has an arc degree which can improve the aesthetic degree of the middle frame, and the arc-shaped surface 121 has no sharp protruding structure, so that scratch is not easy to cause; in addition, when the screw 900 is installed, even if the second middle frame 200 is moved away from the first middle frame 100 in the first direction, it is still possible to ensure that the assembled second middle frame 200 and the first side plate 120 contacted with the first middle frame 100 are positioned in the arc-shaped surface 121.

In some embodiments, as shown in fig. 11, 12 and 14, the middle frame structure includes a third middle frame 300 extending in the second direction; the structure of the third middle frame 300 is mirror-symmetrical to the structure of the second middle frame 200; the third middle frame 300, the first middle frame 100 and the second middle frame 200 are sequentially connected, and the third middle frame 300 and the second middle frame 200 are oppositely arranged and form a third cavity with the first middle frame 100.

Specifically, the two ends of the first middle frame 100 have the same structure, and the structure of the second middle frame 200 is mirror-symmetrical to the plane of the third middle frame 300 along the perpendicular bisector of the first middle frame 100. One end of the first middle frame 100 is spliced with the second middle frame 200, and the other end of the first middle frame 100 is spliced with a third middle frame 300 with a mirror symmetry structure of the second middle frame 200, so that the third middle frame 300 and the second middle frame 200 are oppositely arranged. The third cavity formed by the connection of the third middle frame 300, the first middle frame 100 and the second middle frame 200 in sequence is used for accommodating the back plate 400. Here, the third middle frame 300 may include a fifth connection plate 310, a third side plate 320, and a sixth connection plate 330 connected in sequence, the structure of the fifth connection plate 310 is the same as that of the third connection plate 210 of the second middle frame 200, the structure of the sixth connection plate 330 is the same as that of the fourth connection plate 230 of the second middle frame 200, and the structural mirror symmetry means that, for example, when seen from one side of the back plate 400 direction, the second connection plate 130 of the first middle frame 100, the fourth connection plate 230 of the second middle frame 200, and the sixth connection plate 330 of the third middle frame 300 are disposed on the same surface and fixedly connected to the back plate 400, respectively

In this embodiment, the first middle frame 100 and the second middle frame 200 that are mirror-symmetrical are easy to distinguish during assembly, are easy to identify, and are not easy to choose mistakes.

In some embodiments, the middle frame structure includes a third middle frame 300 extending in the second direction; the third middle frame 300 has the same structure as the second middle frame 200; the third middle frame 300, the first middle frame 100 and the second middle frame 200 are sequentially connected, and the third middle frame 300 and the second middle frame 200 are oppositely arranged and form a fourth cavity with the first middle frame 100.

Specifically, the third middle frame 300, the first middle frame 100 and the second middle frame 200 are sequentially connected, two end structures of the first middle frame 100 are different, taking the example of viewing angle at one side of the back plate 400, the connection position of the first middle frame 100 and the second middle frame 200 is that the second connection plate 130 provided with the first clamping groove 131 is connected with the fourth connection plate 230 provided with the first buckle 231, taking the example of viewing angle at one side of the back plate 400, the connection position of the first middle frame 100 and the third middle frame 300 is that the groove and/or tooth structure provided by the first middle frame 100 is in matched connection with the tooth and/or groove structure provided by the third middle frame, that is, at this time, taking the example of viewing angle at one side of the back plate 400, the two end structures of the second connection plate 130 included in the first middle frame 100 are different, one end is the first clamping groove 131 structure, and the other end is the groove or tooth structure. Taking the example of setting the viewing angle at one side of the display panel 1100, the connection position of the first middle frame 100 and the second middle frame 200 is that the first connection plate 110 with the groove and/or the tooth structure is connected with the third connection plate 210 with the tooth and/or the groove, and taking the example of setting the viewing angle at one side of the display panel 1100, the connection position of the first middle frame 100 and the third middle frame 300 is that the first connection plate 110 with the first clamping groove 131 is connected with the third connection plate 210 with the first clamping buckle 231, that is, taking the example of setting the viewing angle at one side of the display panel 1100, the structures of two ends of the first connection plate 110 included in the first middle frame 100 are different, one end of the first connection plate is the first clamping groove 131 structure, and the other end of the first connection plate 110 is the groove or the tooth structure. Specifically, the two ends of the first connecting plate 110 are respectively provided with a tooth part and a groove for connecting with one connecting plate of the second middle frame 200 and the third middle frame 300, and the two ends of the second connecting plate 130 are respectively provided with a clamping groove for connecting with the other connecting plate of the second middle frame 200 and the third middle frame 300; correspondingly, one end of one of the second middle frame 200 and the third middle frame 300 has a tooth and a groove for connecting with the first connecting plate 110, and one end of the other of the second middle frame 200 and the third middle frame 300 has a buckle for connecting with the second connecting plate 130.

In some embodiments, the third middle frame 300 includes a fifth connection plate 310, a third side plate 320, and a sixth connection plate 330 connected in sequence, the fifth connection plate 310 and the sixth connection plate 330 being disposed opposite to each other and forming a fifth cavity with the third side plate 320; the fifth connection board 310 includes a fifth sub-connection board and a sixth sub-connection board stacked; the second connection board 130 includes a seventh sub-connection board and an eighth sub-connection board stacked; a fifth tooth part arranged at one end of the fifth sub-connecting plate is accommodated in a fifth groove formed at one end, far away from the first clamping groove 131, of the seventh sub-connecting plate 111, and a sixth tooth part arranged at the other end of the eighth sub-connecting plate 111 is accommodated in a sixth groove formed at one end, far away from the first clamping groove 131, of the sixth sub-connecting plate; the second buckle disposed at one end of the sixth connecting plate 330 is locked in the second slot disposed at the other end of the first connecting plate 130.

Specifically, the first middle frame 100 has different structures at both ends. The first groove 1111 and the first tooth 1122 are formed at the end of the first connecting plate 110 connected to the second middle frame 200, and the first clamping groove 131 is formed at the end of the second connecting plate 130 connected to the second middle frame 200; the first connecting plate 110 is provided with a second clamping groove at one end connected with the third middle frame 300, and a second groove and a second tooth portion are provided at one end connected with the third middle frame 300 of the second connecting plate 130.

In this embodiment, the structure of the third middle frame 300 is the same as that of the second middle frame 200, so that the third middle frame 300 and the first middle frame are aligned in a direction perpendicular to the first direction and the second direction, and in the second direction. In addition, the second middle frame 200 and the third middle frame 300 with the same structure can use the same mold, and no additional mold opening is needed, so as to reduce the manufacturing cost.

In some embodiments, the fifth connection plate 330 includes a third mounting hole, an axial direction of the third mounting hole extends along a thickness direction of the fifth connection plate 330, and the thickness direction of the fifth connection plate 330 is perpendicular to the first direction and the second direction.

Specifically, the thickness directions of the first connection plate 110, the second connection plate 130, the third connection plate 210, the fourth connection plate 230, the fifth connection plate 310, and the sixth connection plate 330 are the same. The thickness direction of the fifth connection plate 330 is a third direction, and a third mounting hole is formed through the fifth connection plate 330, the third mounting hole is a salad hole, and the third mounting hole is used for mounting the countersunk head screw 900 so as to realize connection between the third middle frame 300 and the back plate 400.

In some embodiments, the distance from the side of the fifth connecting plate 310 away from the third side plate 320 to the third side plate 320 is greater than the distance from the side of the sixth connecting plate 330 away from the third side plate to the third side plate 320.

Specifically, in the first reverse direction, the length of the sixth connection plate 330 is greater than the length of the fifth connection plate 310. The fourth cavity of the third middle frame 300 is for receiving the side edge of the back plate 400, and the longer sixth connection plate 330 provides sufficient support for supporting the back plate 400.

In a possible embodiment, the third middle frame 300, the first middle frame 100 and the second middle frame 300, which are sequentially connected, form a cavity structure, and a reserved space is formed at an opening of the cavity structure, i.e., at one side opposite to the first middle frame 100, and may be used to accommodate a decoration member of a display device, such as a horn of the display device. The decoration member of the display device may be located at one side of the case of the display device, and the third middle frame 300, the first middle frame 100, and the second middle frame 300, which are sequentially connected, are assembled on the case of the display device.

Based on the same inventive concept, as shown in fig. 11 and fig. 12, an embodiment of the present application provides a display module, including a back plate 400 and any one of the middle frame structures provided in the first aspect of the embodiment of the present application; the back plate 400 is assembled on one side of the middle frame structure.

In a possible embodiment, as shown in fig. 10, the back view of the display module, the second middle frame 200 may be a right middle frame, the first middle frame 100 may be an upper middle frame, and the third middle frame 300 may be a left middle frame. The right center, upper center and left center are connected in sequence to form a center structure, and the back plate 400 fits within a cavity defined by the center structure, the center structure providing sufficient support for supporting the back plate 400.

In some embodiments, the back plate 400 includes a second mounting hole 430, the second mounting hole 430 being configured opposite the first mounting hole 500 of the middle frame structure; the axial direction L2 of the first mounting hole and the axial direction L1 of the second mounting hole are parallel and not overlapped before the mounting screw 900, the axial direction L1 of the second mounting hole is far away from the second side plate 220, and the axial direction of the first mounting hole 500 is close to the second side plate 220; the axial direction L2 of the first mounting hole and the axial direction L1 of the second mounting hole coincide after mounting the screw 900.

Specifically, as shown in fig. 14, before the screw 900 is mounted, the first mounting hole 500 and the second mounting hole 430 are eccentrically disposed in the first direction, and optionally, the axial direction L2 of the first mounting hole and the axial direction L2 of the first mounting hole are spaced apart from each other by 0.1 mm in the first direction, that is, are eccentric by 0.1 mm. When the screw 900 is installed, the eccentric arrangement may cause the second middle frame 200 (or the third middle frame 300) having the first mounting hole 500 and the back plate 400 to relatively move close until the first mounting hole 500 and the second mounting hole 430 are concentrically arranged, so that the second middle frame 200 is precisely positioned in the first direction, thereby achieving alignment of the first middle frame 100 and the second middle frame 200 in the first direction.

In some embodiments, as shown in fig. 14-17, the display module includes a light guide plate 600, an optical film 700, and a bezel 800; the light guide plate 600 and the optical film 700 are disposed at one side of the back plate 400; the adhesive frame 800 is disposed on a side of the light guide plate 600 and the optical film 700 away from the back plate 400.

In a possible embodiment, the reflective sheet 1000 is disposed on one side of the inner side of the back plate 400, the light guide plate 600 is disposed on one side of the reflective sheet 1000 away from the back plate 400, the optical film 700 set is fixedly disposed on one side of the light guide plate 600 away from the reflective sheet 1000, a portion of the side surface of the light guide plate 600 is fixedly connected with the frame of the back plate 400 for supporting the light guide plate 600 and the optical film 700 by the back plate 400, and the adhesive frame 800 is disposed on the outer side of the back plate 400 and between the back plate 400 and the middle frame structure.

In this embodiment, the first middle frame 100 and the second middle frame 200 included in the middle frame structure are aligned, assembled and fixed in the first direction, the second direction and the third direction which are perpendicular to each other, specifically, the first middle frame 100 is assembled with the back plate 400 through the positioning clamping groove 132 and the positioning hole 133, the axial direction L2 of the first mounting hole of the second middle frame 200 and the axial direction L1 of the second mounting hole on the back plate 400 are parallel and not coincident in the first direction, and in this way, when the screw 900 is mounted, the second middle frame 200 and the back plate 400 are relatively moved close to each other until the first mounting hole 500 and the second mounting hole 430 are concentric, so that the second middle frame 200 is accurately positioned in the first direction, and further, the alignment of the first middle frame 100 and the second middle frame 200 in the first direction is realized; a first clamping groove 131 is formed at one end of the first middle frame 100, and the groove bottom of the first clamping groove 131 faces to a first direction, so that the groove wall surface is intersected with a second direction; one end of the second middle frame 200 is provided with a first buckle 231, the first buckle 231 protrudes upwards along a first direction, so that at least one surface of the first buckle 231 is intersected with a second direction, the first buckle 231 is clamped in the first clamping groove 131, a groove wall surface intersected with the second direction and at least one surface of the first buckle 231 form a limit structure along the second direction, and the first middle frame 100 and the second middle frame 200 are aligned along the second direction; one end of the first middle frame 100 is provided with a first groove 1111 and a first tooth portion 1122, the first groove 1111 and the first tooth portion 1122 form a stepped difference structure in a third direction, one end of the second middle frame 200 is provided with a second groove 2122 and a second tooth portion 2111, the second groove 2122 and the second tooth portion 2111 form a stepped difference structure in the third direction, the first tooth portion 1122 is arranged in the second groove 2122, the second tooth portion 2111 is arranged in the first groove 1111, a limiting structure in the third direction is formed, and the first middle frame 100 and the second middle frame 200 are aligned in the third direction.

Based on the same inventive concept, an embodiment of the present application provides a display device, including a display module set according to any one of the second aspects of the embodiments of the present application; the display panel 1100 is mounted on the display side of the display module.

Specifically, the display panel 1100 is mounted on the light emitting side of the display module.

Based on the same inventive concept, the embodiment of the present application provides a method for manufacturing the foregoing display module, as shown in fig. 18, mainly including steps S110 to S140:

step S110: after the first middle frame 100 is extended in the first direction, it is assembled to one side of the back plate 400.

Step S120: extending the second middle frame 200 in a second direction; the second tooth portion 2111 provided at one end of the third sub-connection plate 211 of the second middle frame 200 is aligned with the first groove 1111 provided at one end of the first sub-connection plate 111 of the first middle frame 100, the first tooth portion 1122 provided at one end of the second sub-connection plate 112 of the first middle frame 100 is aligned with the second groove 2122 provided at one end of the fourth sub-connection plate 212 of the second middle frame 200, and the first buckle 231 provided at one end of the fourth connection plate 230 of the second middle frame 200 is aligned with the first slot 131 provided at one end of the second connection plate 130 of the first middle frame 100.

Step S130: at the same time as the second tooth portion 2111 is inserted into the first groove 1111, the first tooth portion 1122 is inserted into the second groove 2122, and the first clip 231 is clipped into the first clip groove 131.

The second connecting plate 130 includes a positioning slot 132 and a positioning hole 133, and the first middle frame 100 is clamped with the positioning protrusion 410 of the back plate 400 through the positioning slot 132, and is clamped with the positioning buckle 420 of the back plate 400 through the positioning hole 133, so as to assemble the first middle frame 100 on the back plate 400.

A stepped structure is formed such that a first groove 1111 is formed at one end of the first sub-connection plate 111 such that a first tooth 1122 is formed at one end of the second sub-connection plate, and a region where projections of the first sub-connection plate 111 in the thickness direction of the first connection plate 110 and projections of the second sub-connection plate 112 in the thickness direction of the first connection plate 110 do not overlap is the first tooth 1122, with one end of the first sub-connection plate 111 and one end of the second sub-connection plate 112 being a stepped structure.

The third sub-connection plate 211 and the fourth sub-connection plate 212 have a stepped structure in which a step is formed at an end of the third connection plate 210 in a thickness direction of the third connection plate 210 such that a second tooth portion 2111 is formed at one end of the third sub-connection plate 211 such that a second groove 2122 is formed at one end of the fourth sub-connection plate, and a region where projections of the third sub-connection plate 211 in the thickness direction of the third connection plate 210 and projections of the fourth sub-connection plate 212 in the thickness direction of the third connection plate 210 do not overlap is the second tooth portion 2111.

The bottom of the first clamping groove 131 at one end of the second connecting plate 130 faces the second direction, the first clamping buckle 231 at one end of the fourth connecting plate 230 protrudes out of the side surface of the fourth connecting plate 230 in the second direction, and the first clamping buckle 231 is clamped in the first clamping groove 131, so that the first middle frame 100 and the second middle frame 200 are aligned in the second direction.

middle frames

100, 200 in a direction perpendicular to the first and second directions is achieved; in addition, by the clamping connection between the first buckle 231 and the first clamping groove 131, the first middle frame 100 and the second middle frame 200 are accurately aligned in the second direction; the connecting structure of the first middle frame 100 and the second middle frame 200 is used for realizing alignment in two directions, realizing accurate positioning and splicing of the middle frame splicing, reducing the difficulty of the middle frame splicing, improving the accuracy of the middle frame splicing and improving the appearance attractiveness of the middle frame splicing.

In some embodiments, step S120 described above: after inserting the second tooth portion 2111 into the first groove 1111 and simultaneously inserting the first tooth portion 1122 into the second groove 2122 and clamping the first clip 231 to the first clamping groove 131, it includes:

the fourth tooth 2121 provided at one end of the fourth sub-link plate 212 of the second middle frame 200 is aligned with the third groove 1121 provided at one end of the second sub-link plate 112 accommodated in the first middle frame 100, and at the same time, the third tooth 1112 provided at one end of the first sub-link plate 111 of the first middle frame 100 is aligned with the fourth groove 2112 provided at one end of the third sub-link plate 211 of the second middle frame 200.

In some embodiments, step S130 described above: after inserting the second tooth portion 2111 into the first groove 1111 and simultaneously inserting the first tooth portion 1122 into the second groove 2122 and clamping the first clip 231 to the first clamping groove 131, it includes:

the third tooth 1112 is inserted into the fourth groove 2112 at the same time as the fourth tooth 2121 is inserted into the third groove 1121.

In the present embodiment, the first middle frame 100 and the second middle frame 200 are aligned in the direction perpendicular to the first direction and the second direction by the first tooth portion 1122 being received in the second groove 2122, the second tooth portion 2111 being received in the first groove 1111, the third tooth portion 1112 being received in the fourth groove 2112, and the fourth tooth portion 2121 being received in the third groove 1121.

the axial direction L2 of the first mounting hole of the first middle frame 100 and the second middle frame 200 is parallel to and not coincident with the axial direction L1 of the second mounting hole of the back plate 400, and the axial direction L1 of the second mounting hole is far away from the second side plate 220, the axial direction L2 of the first mounting hole is close to the second side plate 220, and the screw 900 is mounted, so that the axial direction L1 of the first mounting hole 500 and the second mounting hole after the screw 900 is mounted are coincident.

In this embodiment, before the screw 900 is mounted, the first mounting hole 500 and the second mounting hole 430 are eccentrically disposed in the first direction, and optionally, the axial direction L2 of the first mounting hole and the axial direction L2 of the first mounting hole are spaced apart from each other by 0.1 mm in the first direction, that is, are eccentric by 0.1 mm. When the screw 900 is installed, the eccentric arrangement may cause the second middle frame 200 (or the third middle frame 300) having the first mounting hole 500 and the back plate 400 to relatively move close until the first mounting hole 500 and the second mounting hole 430 are concentrically arranged, so that the second middle frame 200 is precisely positioned in the first direction, thereby achieving alignment of the first middle frame 100 and the second middle frame 200 in the first direction.

In some embodiments, in step S101 described above: after the first middle frame 100 is extended along the first direction, before being assembled to one side of the back plate 400, it includes:

a light guide plate 600 and an optical film 700 are disposed at one side of the back plate 400; a glue frame 800 is provided at a side of the light guide plate 600 and the optical film 700 remote from the back plate 400.

In a possible embodiment, the reflective sheet 1000 is assembled on the inner side of the back plate 400, the light guide plate 600 is disposed on the side of the reflective sheet 1000 away from the back plate 400, the optical film 700 set is fixedly disposed on the side of the light guide plate 600 away from the reflective sheet 1000, and the glue frame 800 is disposed on the outer side of the back plate 400 and between the back plate 400 and the middle frame structure.

the end of the first middle frame 100 extending along the first direction has a first groove 1111, a first tooth 1122 and a first clamping groove 131, and the end of the second middle frame 200 extending along the second direction has a second groove 2122, a second tooth 2111 and a first clamp 231; by the first tooth 1122 being received in the second groove 2122 and the second tooth 2111 being received in the first groove 1111, precise alignment of the first and second

middle frames

Those of skill in the art will appreciate that the various operations, methods, steps in the flow, actions, schemes, and alternatives discussed in the present application may be alternated, altered, combined, or eliminated. Further, other steps, means, or steps in a process having various operations, methods, or procedures discussed in this application may be alternated, altered, rearranged, split, combined, or eliminated. Further, steps, measures, schemes in the prior art with various operations, methods, flows disclosed in the present application may also be alternated, altered, rearranged, decomposed, combined, or deleted.

In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

In the description of the present specification, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.

It should be understood that, although the steps in the flowcharts of the figures are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited in order and may be performed in other orders, unless explicitly stated herein. Moreover, at least some of the steps in the flowcharts of the figures may include a plurality of sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, the order of their execution not necessarily being sequential, but may be performed in turn or alternately with other steps or at least a portion of the other steps or stages.

The foregoing is only a partial embodiment of the present application, and it should be noted that, for a person skilled in the art, several improvements and modifications can be made without departing from the principle of the present application, and these improvements and modifications should also be considered as the protection scope of the present application.

Claims

1. A center structure, comprising: a first middle frame extending along a first direction and a second middle frame extending along a second direction;

the first middle frame comprises a first connecting plate, a first side plate and a second connecting plate which are sequentially connected, wherein the first connecting plate and the second connecting plate are oppositely arranged and form a first cavity with the first side plate;

the first connecting plate comprises a first sub-connecting plate and a second sub-connecting plate which are stacked; one end of the first sub-connecting plate and one end of the second sub-connecting plate are in a broken difference along the thickness direction of the first connecting plate to form a step structure, so that a first groove is formed at one end of the first sub-connecting plate, and a first tooth part is formed at one end of the second sub-connecting plate;

the second middle frame comprises a third connecting plate, a second side plate and a fourth connecting plate which are sequentially connected, wherein the third connecting plate and the fourth connecting plate are oppositely arranged and form a second cavity with the second side plate;

the third connecting plate comprises a third sub-connecting plate and a fourth sub-connecting plate which are stacked; the third sub-connecting plate and the fourth sub-connecting plate have a break difference along the thickness direction of the third connecting plate at the end part of the third connecting plate, and form a step structure, so that a second tooth part is formed at one end of the third sub-connecting plate, and a second groove is formed at one end of the fourth sub-connecting plate;

The second tooth part arranged at one end of the third sub-connecting plate is accommodated in the first groove formed at one end of the first sub-connecting plate, and the first tooth part arranged at one end of the second sub-connecting plate is accommodated in the second groove formed at one end of the fourth sub-connecting plate; the first buckle that fourth connecting plate one end set up is clamped in the first draw-in groove that second connecting plate one end was seted up.

2. The middle frame structure of claim 1, wherein,

the fourth tooth portion that fourth son connecting plate one end set up holds in the third recess that second son connecting plate one end was seted up, the third tooth portion that second son connecting plate one end set up holds in the fourth recess that fourth son connecting plate one end was seted up.

3. The middle frame structure of claim 1, wherein,

the first clamping groove comprises a first side wall surface and a second side wall surface;

the first side wall surface is obliquely arranged, and an included angle between the first side wall surface and a plane parallel to the first side plate in a direction away from the second side wall surface is not more than 2 degrees;

the second side wall surface is obliquely arranged, and an included angle between the second side wall surface and a plane parallel to the first side plate in a direction away from the first side wall surface is not more than 5 degrees.

4. The mullion structure of claim 1, wherein the first connection plate and the third connection plate further comprise a first mounting hole, an axial direction of the first mounting hole extending along a third direction, the third direction being perpendicular to the first direction and the second direction.

5. The middle frame structure of claim 4, wherein the second connection plate further comprises a positioning slot and a positioning hole;

the bottom of the positioning clamping groove faces away from the first side plate and is used for being clamped with the positioning protrusion of the backboard;

the axial direction of the positioning hole extends along the third direction and is used for being clamped with the positioning buckle of the backboard.

6. The middle frame structure of claim 1, wherein,

the distance from the side edge of the second connecting plate far away from the first side plate to the first side plate is greater than the distance from the side edge of the first connecting plate far away from the first side edge to the first side plate.

7. The middle frame structure of claim 1, wherein,

the distance from the side edge of the fourth connecting plate far away from the second side plate to the second side plate is greater than the distance from the side edge of the third connecting plate far away from the second side plate to the second side plate.

8. The middle frame structure of claim 1, wherein,

the first side plate and one end of the second side plate, which is close to the first side plate, are provided with arc-shaped surfaces.

9. The mullion structure of any one of claims 1-8, further comprising a third mullion extending in the second direction;

the structure of the third middle frame is mirror-symmetrical with the structure of the second middle frame;

the third middle frame, the first middle frame and the second middle frame are sequentially connected, and the third middle frame and the second middle frame are oppositely arranged and form a third cavity with the first middle frame.

10. The mullion structure of any one of claims 1-8, further comprising a third mullion extending in the second direction;

the structure of the third middle frame is the same as that of the second middle frame;

the third middle frame, the first middle frame and the second middle frame are sequentially connected, and the third middle frame and the second middle frame are oppositely arranged and form a fourth cavity with the first middle frame.

11. The middle frame structure according to claim 10, wherein the third middle frame comprises a fifth connecting plate, a third side plate and a sixth connecting plate which are sequentially connected, wherein the fifth connecting plate and the sixth connecting plate are oppositely arranged and form a fifth cavity with the third side plate;

The fifth connecting plate comprises a fifth sub-connecting plate and a sixth sub-connecting plate which are stacked;

the second connecting plate comprises a seventh sub connecting plate and an eighth sub connecting plate which are stacked;

a fifth tooth part arranged at one end of the fifth sub-connecting plate is accommodated in a fifth groove formed in one end, far away from the first clamping groove, of the seventh sub-connecting plate, and a sixth tooth part arranged at one end, far away from the first clamping groove, of the eighth sub-connecting plate is accommodated in a sixth groove formed in one end of the sixth sub-connecting plate;

the second buckle that sixth connecting plate one end set up is clamped in the second draw-in groove that first connecting plate other end was seted up.

12. The middle frame structure of claim 11, wherein the frame structure comprises a plurality of side walls,

the fifth connecting plate comprises a third mounting hole, the axial direction of the third mounting hole extends along the thickness direction of the fifth connecting plate, and the thickness direction of the fifth connecting plate is perpendicular to the first direction and the second direction.

13. The middle frame structure of claim 11, wherein the frame structure comprises a plurality of side walls,

the distance from the side edge of the fifth connecting plate far away from the third side plate to the third side plate is larger than the distance from the side edge of the sixth connecting plate far away from the third side plate to the third side plate.

14. A display module comprising a back plate and the middle frame structure of any one of claims 1-3;

the backboard is assembled on one side of the middle frame structure.

15. The display module assembly of claim 14, wherein the display module assembly comprises,

the back plate includes a second mounting hole configured to be opposite to the first mounting hole of the middle frame structure;

the axial direction of the first mounting hole and the axial direction of the second mounting hole are parallel and not overlapped before the screws are mounted, the axial direction of the second mounting hole is far away from the second side plate, and the axial direction of the first mounting hole is close to the second side plate;

the axial direction of the first mounting hole and the axial direction of the second mounting hole coincide after the screw is mounted.

16. The display module of claim 14 or 15, further comprising: a light guide plate, an optical film and a rubber frame;

the light guide plate and the optical film are arranged on one side of the backboard;

the rubber frame is arranged on one side of the light guide plate and one side of the optical film, which is far away from the backboard.

17. A display device comprising a display panel and a display module according to any one of claims 14-16;

the display panel is assembled on the display side of the display module.

18. A method of manufacturing a display module according to any one of claims 14 to 16, comprising:

after the first middle frame extends along the first direction, the first middle frame is assembled to one side of the backboard;

extending the second middle frame along a second direction;

aligning a second tooth part arranged at one end of a third sub-connecting plate of the second middle frame with a first groove formed at one end of a first sub-connecting plate of the first middle frame, aligning a first tooth part arranged at one end of the second sub-connecting plate of the first middle frame with a second groove formed at one end of a fourth sub-connecting plate of the second middle frame, and aligning a first buckle arranged at one end of a fourth connecting plate of the second middle frame with a first clamping groove formed at one end of a second connecting plate of the first middle frame;

and inserting the second tooth part into the first groove, inserting the first tooth part into the second groove, and clamping the first buckle into the first clamping groove.

19. The method for manufacturing a display module according to claim 18, wherein the inserting the second tooth into the first groove and inserting the first tooth into the second groove and clamping the first buckle into the first clamping groove simultaneously comprises:

The axial direction of the first mounting holes of the first middle frame and the second middle frame is parallel to and is not overlapped with the axial direction of the second mounting hole of the backboard, the axial direction of the second mounting hole is far away from the second side plate, the axial direction of the first mounting hole is close to the second side plate, and the screws are mounted, so that the axial directions of the first mounting hole and the second mounting hole after the screws are mounted are overlapped.

20. The method for manufacturing a display module according to claim 18 or 19, wherein after the first middle frame is extended along the first direction, before being assembled to one side of the back plate, the method further comprises:

a light guide plate and an optical membrane are arranged on one side of the backboard;

and a rubber frame is arranged on one side of the light guide plate and one side of the optical film, which is far away from the back plate.