CN113450643A

CN113450643A - Display module, preparation method thereof, middle frame structure and display device

Info

Publication number: CN113450643A
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: 2021-09-28
Anticipated expiration: 2041-07-28
Also published as: CN113450643B

Abstract

The embodiment of the application provides a display module, a preparation method of the display module, a middle frame structure and a display device. This center structure includes: 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 buckle. In the embodiment of the application, the first tooth part is accommodated in the first groove, the second tooth part is accommodated in the second groove, the first middle frame and the second middle frame are aligned in a third direction perpendicular to the first direction and the second direction, the first middle frame and the second middle frame are aligned in the second direction through clamping of the first clamping buckle and the first clamping groove, the connection structures of the first middle frame and the second middle frame are aligned in the two directions respectively, and the splicing precision of the middle frames is improved.

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 and a preparation method thereof, a middle frame structure and a display device.

Background

At present, the main components of the display module include 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 the display panel, and the middle frame structure is obtained by a splicing method.

However, the existing middle frame structure is poor in splicing precision.

Disclosure of Invention

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

In a first aspect, an embodiment of the present application provides 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; a second tooth part arranged at one end of the third sub-connecting plate is accommodated in a first groove formed at one end of the first sub-connecting plate, and a first tooth part arranged at one end of the second sub-connecting plate is accommodated in a second groove formed at one end of the fourth sub-connecting plate; and a first buckle arranged at one end of the fourth connecting plate is clamped in a first clamping groove formed at one end of the second connecting plate.

Optionally, a fourth tooth portion disposed at one end of the fourth sub-connecting plate is accommodated in a third groove formed at one end of the second sub-connecting plate, and a third tooth portion disposed at one end of the first sub-connecting plate is accommodated in a fourth groove formed at one end of the third sub-connecting plate.

Optionally, the first card slot includes a first sidewall surface and a second sidewall 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 the direction far 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 the 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, 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 includes a positioning slot and a positioning hole; the bottom of the positioning clamping groove faces to the direction far away from the first side plate and is used for being clamped with the positioning bulge of the back plate; the axial direction of locating hole is followed the third direction extends for with the location buckle joint of backplate.

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

Optionally, a distance from a side edge of the fourth connecting plate far 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 far away from the second side edge to the second side plate.

Optionally, one end of the first side plate close to the second side plate is provided with an arc-shaped surface.

Optionally, the middle frame structure further comprises a third middle frame extending along the second direction; the structure of the third middle frame is in mirror symmetry 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 the same as that of the third connecting plate of the second middle frame, the structure of the sixth connecting plate is the same as that of the fourth connecting plate of the second middle frame, and structural mirror symmetry means that, for example, when viewed from the first side of the backboard direction, 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 plane and are respectively fixedly connected with the backboard.

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, the third middle frame and the second middle frame are oppositely arranged, and a fourth cavity is formed by the third middle frame and the second middle frame.

Optionally, the third middle frame includes a fifth connecting plate, a third side plate and a sixth connecting plate, which are connected in sequence, and the fifth connecting plate and the sixth connecting plate are arranged oppositely 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 at 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 at one end of the sixth sub-connecting plate; and a second buckle arranged at one end of the sixth connecting plate is clamped in a second clamping groove formed at the other end of the first connecting plate.

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, which is far 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, which is far away from the third side edge, to the third side plate.

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

Optionally, the back panel comprises 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 do not coincide before 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 are overlapped after the screw is mounted.

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

In a third aspect, an embodiment of the present application provides a display device, including the display module set described in any one of the second aspects 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 manufacturing a display module according to the second aspect of the embodiment of the present application, including: the first middle frame is assembled to one side of the back plate after extending along the first direction; 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 arranged at one end of a first sub-connecting plate of the first middle frame, aligning a first tooth part arranged at one end of a second sub-connecting plate of the first middle frame with a second groove arranged 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 arranged at one end of a second connecting plate of the first middle frame; and inserting the first tooth part into the second groove while inserting the second tooth part into the first groove, and clamping the first buckle into the first clamping groove.

Optionally, after inserting the first tooth portion into the second groove and clamping the first snap in the first clamping groove while inserting the second tooth portion into the first groove, the method further includes: and the axial direction of the first mounting hole of the first middle frame and the axial direction of the first mounting hole of the second middle frame are parallel to and do not coincide with the axial direction of the second mounting hole of the back plate, 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 for mounting screws, so that the axial direction of the first mounting hole and the axial direction of the second mounting hole coincide after the screws are mounted.

Optionally, after extending the first middle frame along the first direction and before assembling the first middle frame to one side of the back plate, the method further includes: arranging a light guide plate and an optical diaphragm on one side of the back plate; and one sides of the light guide plate and the optical diaphragm, which are far away from the back plate, are provided with rubber frames.

The beneficial technical effects brought by the technical scheme provided by the embodiment of the application comprise:

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 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 vertical 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 connection structure of the first middle frame and the second middle frame realizes alignment in two directions, realizes accurate positioning and splicing of middle frame splicing, reduces the difficulty of middle frame splicing, improves the precision of middle frame splicing, can reduce the processing difficulty and the splicing difficulty of various middle frames, can reduce production cost, and improves the appearance attractiveness of middle frame splicing.

Additional aspects and advantages of the present 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 present 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 of which:

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

FIG. 2 is a rear 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 of FIG. 3 in the direction C;

FIG. 5 is a schematic view of the first middle frame and the second middle frame of FIG. 3 in a separated configuration;

FIG. 6 is a schematic view of the first middle frame and the second middle frame of FIG. 3 from another perspective separated;

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

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

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

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

fig. 10 is a schematic position diagram 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 disclosure;

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 structure of FIG. 14 in the direction H;

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

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

fig. 18 is a schematic flow chart illustrating a manufacturing method of a display module according to an embodiment of the present disclosure.

The reference numerals are introduced as follows:

100-a first middle frame; 110-a first connection board; 111-a first sub-connection plate; 1111-a first groove; 1112-a third tooth; 112-a second sub-connection plate; 1121-third recess; 1122-first tooth; 120-a first side panel; 121-arc-shaped surface; 130-a second connecting plate; 131-a first card slot; 1311-first slot wall surface; 1312-a second slot wall surface; 132-a positioning card slot; 133-positioning holes;

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

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

400-a back plate; 410-positioning protrusions; 420-positioning fastener; 430-second mounting hole;

500-a first mounting hole;

600-a light guide plate;

700-an optical film;

800-glue frame;

900-screw;

1000-a reflector sheet;

1100-display panel;

l1 — axial direction of second mounting hole;

l2 — axial direction of the first mounting hole.

Detailed Description

Reference will now be made in detail to the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar parts or parts having the same or similar functions throughout. In addition, if a detailed description of the known art is not necessary for illustrating the features of the present application, it is omitted. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

It will be understood by those within the art that, unless otherwise defined, 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. 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 the context clearly indicates otherwise. 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. As used herein, the term "and/or" includes all or any element and all combinations 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, at this time, a top view of the middle frame viewed from a side of the display panel 1100, and fig. 2 is a back view of fig. 1, that is, if a back plate 400 of a backlight module is assembled, a top view of the middle frame viewed from a side of the back plate 400. 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 comprises a first connecting plate 110, a first side plate 120 and a second connecting plate 130 which are sequentially connected, wherein the first connecting plate 110 and the second connecting plate 130 are oppositely arranged and form a first cavity with the first side plate 120; the first connection plate 110 includes a first sub-connection plate 111 and a second sub-connection plate 112 which are stacked; the second middle frame 200 comprises a third connecting plate 210, a second side plate 220 and a fourth connecting plate 230 which are sequentially connected, wherein the third connecting plate 210 and the fourth connecting plate 230 are oppositely arranged and form a second cavity with the second side plate 220; the third connecting plate 210 includes a third sub-connecting plate 211 and a fourth sub-connecting plate 212 which are stacked; a second tooth 2111 at one end of the third sub-connecting plate 211 is received in a first groove 1111 formed at one end of the first sub-connecting plate 111, and a first tooth 1122 at one end of the second sub-connecting plate 112 is received in a second groove 2122 formed at one end of the fourth sub-connecting plate 212; a first buckle 231 disposed at one end of the fourth connecting plate 230 is clamped in a 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 along a first direction, one end of the second middle frame 200 extends to the other end of the second middle frame 200 along a second direction, the first direction may be perpendicular to the second direction, one end of the first middle frame 100 is connected to one end of the second middle frame 200 in a splicing manner, the thickness directions of the first connecting plate 110 and the third connecting plate 210 are perpendicular to the first direction and the second direction, the first connecting plate 110 includes a first sub-connecting plate 111 and a second sub-connecting plate 112 which are stacked in the thickness direction, and the third connecting plate 210 includes a third sub-connecting plate 211 and a fourth sub-connecting plate 212 which are stacked in the thickness direction.

As shown in fig. 5 to 7, one end of the first sub-link plate 111 and one end of the second sub-link plate 112 have a step difference in the thickness direction of the first link plate 110, and a step structure is formed such that a first groove 1111 is formed at one end of the first sub-link plate 111, a first tooth 1122 is formed at one end of the second sub-link plate, a region where a projection of the first sub-link plate 111 in the thickness direction of the first link plate 110 and a projection of the second sub-link plate 112 in the thickness direction of the first link plate 110 do not overlap is the first tooth 1122, or if the thickness of the first link plate 110 is a, optionally, the depth of the first groove 1111 is a1, the thickness of the first tooth 1122 is a2, and a is a1+ a 2.

The third sub-link plate 211 and the fourth sub-link plate 212 have a step at an end of the third link plate 210 in a thickness direction of the third link plate 210, and a stepped structure is formed such that a second tooth 2111 is formed at one end of the third sub-link plate 211, a second groove 2122 is formed at one end of the fourth sub-link plate, a projection of the third sub-link plate 211 in the thickness direction of the third link plate 210 and a projection of the fourth sub-link plate 212 in the thickness direction of the third link plate 210 do not overlap each other, and the second tooth 2111 is formed in a region where a projection of the third sub-link plate 211 in the thickness direction of the third link plate 210 does not overlap each other, or if the thickness of the third link plate 210 is b, optionally, the depth of the second groove 2122 is b1, the thickness of the second tooth 2111 is b2, and b1+ b 2. Optionally, a is b, a2 is b1, and a1 is b2, so that the first middle frame and the second middle frame can be assembled on one side of the first connecting plate more smoothly, the module structure is more attractive, and the display panel 1100 is assembled later more easily.

By the first tooth 1122 being received in the second groove 2122 and the second tooth 2111 being received in the first groove 1111, the first sub-link plate 111 is connected to the third sub-link plate 211 in an opposing manner and the second sub-link plate 112 is connected to the fourth sub-link plate 212 in an opposing manner, the first tooth 1122 and the second tooth 2111 are connected at least partially 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 the direction perpendicular to the first direction and the second direction is achieved.

The groove bottom of the first locking groove 131 at one end of the second connecting plate 130 faces the first direction, so that the wall surface of the groove intersects with the second direction; the first 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 first direction, so that at least one surface of the first buckle 231 intersects with the second direction, the first buckle 231 is clamped in the first clamping groove 131, and a groove wall surface intersecting with the second direction and at least one surface of the first buckle 231 form a limiting structure in the second direction, thereby realizing the alignment of the first middle frame 100 and the second middle frame 200 in the second direction.

In this embodiment, the end of the first middle frame 100 extending in the first direction has a first groove 1111, a first tooth 1122 and a first slot 131, and the end of the second middle frame 200 extending in the second direction has a second groove 2122, a second tooth 2111 and a first catch 231; by the first tooth portion 1122 being received in the second groove 2122 and the second tooth portion 2111 being received in the first groove 1111, accurate 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 addition, the first middle frame 100 and the second middle frame 200 are precisely aligned in the second direction by the clamping of the first buckle 231 and the first clamping groove 131; the connection structure of the first middle frame 100 and the second middle frame 200 realizes alignment in two directions, realizes accurate positioning and splicing of middle frame splicing, reduces the difficulty of middle frame splicing, improves the precision of middle frame splicing, can reduce the processing difficulty and the splicing difficulty of various middle frames, can reduce the production cost, and improves the appearance attractiveness of middle frame splicing.

In some embodiments, as shown in fig. 5 to 7, the fourth tooth 2121 disposed at one end of the fourth sub-link plate 212 is received in the third groove 1121 formed at one end of the second sub-link plate 112, the third tooth 1112 disposed at one end of the second sub-link plate 112 is received in the fourth groove 2112 formed at one end of the fourth sub-link plate 212, or if the thickness of the third link plate 210 is b, the thickness of the fourth tooth 2121 is optionally b4, the depth of the fourth groove 2112 is b3, optionally, b3+ b4 is b, optionally, b4 is b1, and b2 is b 3.

Specifically, one end of the first sub-link plate 111 and one end of the second sub-link plate 112 have a step in the thickness direction of the first link plate 110, and a stepped structure is formed such that a third groove 1121 is formed at one end of the second sub-link plate 112, such that a third tooth 1112 is formed at one end of the first sub-link, a projection of the first sub-link plate 111 in the thickness direction of the first link plate 110 and a projection of the second sub-link plate 112 in the thickness direction of the first middle frame 100 do not overlap each other is the third tooth 1112, or if the thickness of the first link plate 110 is a, optionally, the thickness of the third tooth 1112 is a4, the depth of the third groove 1121 is a3, optionally, a3+ a4 is a, optionally, a4 is a1, and a2 is a 3. The third sub-link plate 211 and the fourth sub-link plate 212 have a step at an end of the third link plate 210 in a thickness direction of the third link plate 210, and a stepped structure is formed such that a fourth tooth 2121 is formed at one end of the fourth sub-link plate 212, a fourth groove 2112 is formed at one end of the third sub-link plate 211, and a region where a projection of the third sub-link plate 211 in the thickness direction of the third link plate 210 and a projection of the fourth sub-link plate 212 in the thickness direction of the third link plate 210 do not overlap is the fourth tooth 2121.

The alignment of the first middle frame 100 and the second middle frame 200 in the direction perpendicular to the first direction and the second direction is achieved by the third teeth 1112 being received in the third grooves 1121, the fourth teeth 2121 being received in the fourth grooves 2112, such that the first sub-connection plate 111 is connected to the third sub-connection plate 211 in opposition, and the second sub-connection plate 112 is connected to the fourth sub-connection plate 212 in opposition, and the third teeth 1112 and the fourth teeth 2121 are at least partially connected in the direction perpendicular to the first direction and the second direction.

In a possible embodiment, the projections of the first tooth 1122 and the third tooth 1112 in the thickness direction of the first link 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 connection plate 130 do not overlap; projections of the second groove 2122 and the fourth groove 2112 in the thickness direction of the second connection plate 130 do not overlap.

In this embodiment, the first connection plate 110 and the second connection plate 130 have two offset structures at their ends, and the first middle frame 100 and the second middle frame 200 are aligned in a direction perpendicular to the first direction and the second direction by receiving the first tooth 1122 in the second groove 2122, the second tooth 2111 in the first groove 1111, the third tooth 1112 in the fourth groove 2112, and the fourth tooth 2121 in the third groove 1121.

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

In the direction away from the groove bottom of the first engaging groove 131, the first sidewall 1311 and the second sidewall 1312 which are correspondingly away form a wider opening, so that the protrusion of the first buckle 231 is inserted into the first engaging groove 131 from multiple angles, and the first sidewall 1311 and the second sidewall 1312 slide relatively, which reduces the difficulty of splicing the first middle frame 100 and the second middle frame 200 in the second direction, and further improves the splicing accuracy in the second direction.

In a possible embodiment, the depth of first catch 231 along is less than or equal to the depth of first card slot 131.

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

Specifically, the thickness directions of the first connecting plate 110, the second connecting plate 130, the third connecting plate 210 and the fourth connecting plate 230 are the same, the third direction is the thickness direction of the first connecting plate 110, the second connecting plate 130, the third connecting plate 210 or the fourth connecting plate 230, and the third direction is perpendicular to both the first direction and the second direction. A first mounting hole 500 is formed through the second connecting plate 130 and the fourth connecting plate 230, the first mounting hole 500 is a salad hole, and the first mounting hole 500 is used for mounting a countersunk screw 900, so that the first middle frame 100 and the second middle frame 200 are connected with the backboard 400.

In some embodiments, as shown in fig. 11 and 13, the second connecting plate 130 includes positioning slots 132 and positioning holes 133; the groove bottom of the positioning clamping groove 132 faces to the direction far away from the first side plate 120 and is used for being clamped with the positioning bulge 410 of the back plate 400; the axial direction of the positioning hole 133 extends along the third direction 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 arranged at intervals, 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 in the third direction, a groove wall of the second connecting plate 130 extends to a side edge of the second connecting plate 130 far away from the first side wall, and a groove bottom of the positioning clamping groove 132 faces the direction far away from the first side plate 120, so that the positioning protrusion 410 of the back plate 400 is inserted into the positioning clamping groove 132 in the direction towards the first side plate 120; the positioning hole 133 penetrates through the second connecting plate 130 along a third direction, so that the positioning buckle 420 of the back plate 400 is inserted into the positioning hole 133 along the third direction and is clamped with the positioning hole 133.

In some embodiments, as shown in fig. 5 to 7, the distance from the side of the second connecting plate 130 far from the first side plate 120 to the first side plate 120 is greater than the distance from the side of the first connecting plate 110 far from the first side to the first side plate 120, so that the first locking groove 131, the positioning locking groove 132 and the positioning hole 133 can be disposed in a sufficient space.

Specifically, in the second reverse direction, the length of the second connecting plate 130 is greater than the length of the first connecting plate 110. The first cavity of the first middle frame 100 is used for accommodating the side of the backboard 400, and the longer second connecting plate 130 provides sufficient support for supporting the backboard 400.

In some embodiments, the distance from the side 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 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 locking member 231 and the positioning locking groove 132.

Specifically, in the first reverse direction, the length of the fourth connecting plate 230 is greater than the length of the third connecting plate 210. The second cavity of the second middle frame 200 is used for accommodating the side of the backboard 400, and the longer fourth connecting plate 230 provides sufficient support for supporting the backboard 400.

In some embodiments, as shown in fig. 9a-9b, the first side plate 120 and the second side plate 220 have an arcuate face 121 near one end.

Specifically, one surface of the first side plate 120, which is far away from the first connecting plate 110 and the second connecting plate 130, extends 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 of the first side plate 120, which is close to the second side 220, the arc-shaped surface 121 has a radian which can improve the attractiveness of the middle frame, and the arc-shaped surface 121 does not have a sharp protruding structure, so that the middle frame is not easily scratched; in addition, after the screw 900 is installed, even if the second middle frame 200 is moved away from the first middle frame 100 along the first direction, the position of the first side plate 120 where the assembled second middle frame 200 and the first middle frame 100 contact can still be ensured to be 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 that 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, the third middle frame 300 and the second middle frame 200 are oppositely arranged, and a third cavity is formed by the third middle frame 300 and 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 structure of the third middle frame 300 along the plane where the perpendicular bisector of the first middle frame 100 is located. 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 which is symmetrical to the second middle frame 200 in a mirror-image manner, so that the third middle frame 300 and the second middle frame 200 are oppositely arranged. The third cavity formed by sequentially connecting the third middle frame 300, the first middle frame 100 and the second middle frame 200 is used for accommodating the back plate 400. Here, the third middle frame 300 may include a fifth connecting plate 310, a third connecting plate 320 and a sixth connecting plate 330 which are connected in sequence, the structure of the fifth connecting plate 310 is the same as that of the third connecting plate 210 of the second middle frame 200, the structure of the sixth connecting plate 330 is the same as that of the fourth connecting plate 230 of the second middle frame 200, and the structural mirror symmetry means that, for example, when viewed from one side in the direction of the rear plate 400, the second connecting plate 130 of the first middle frame 100, the fourth connecting plate 230 of the second middle frame 200 and the sixth connecting plate 330 of the third middle frame 300 are disposed on the same plane and are fixedly connected to the rear 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, easy to identify, and not easy to select by mistake.

In some embodiments, the middle frame structure includes a third middle frame 300 extending in the second direction; the structure of the third middle frame 300 is the same as that 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, the third middle frame 300 and the second middle frame 200 are oppositely arranged, and a fourth cavity is formed between the third middle frame 300 and the first middle frame 100.

Specifically, the third middle frame 300, the first middle frame 100 and the second middle frame 200 are connected in sequence, two end structures of the first middle frame 100 are different, taking the viewing angle at the side where the backboard 400 is arranged as an example, the connecting position of the first middle frame 100 and the second middle frame 200 is that the second connecting plate 130 provided with the first clamping groove 131 is connected with the fourth connecting plate 230 provided with the first buckle 231, similarly, taking the viewing angle at the side where the backboard 400 is arranged as an example, the connecting 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 connected with the tooth and/or groove structure provided by the third middle frame in a matching manner, that is, at this time, taking the viewing angle at the side where the backboard 400 is arranged as an example, two end structures of the second connecting plate 130 included in the first middle frame 100 are different, one end of which is the first clamping groove 131 structure, and the other end which is the groove or tooth structure. Taking the viewing angle at the side of the display panel 1100 as an example, the connection position of the first middle frame 100 and the second middle frame 200 is that the first connection plate 110 provided with the groove and/or the tooth structure is connected with the third connection plate 210 provided with the tooth and/or the groove, and similarly, taking the viewing angle at the side of the display panel 1100 as an example, the connection position of the first middle frame 100 and the third middle frame 300 is that the first connection plate 110 provided with the first card slot 131 is connected with the third connection plate 210 provided with the first card slot 231, that is, taking the viewing angle at the side of the display panel 1100 as an example, the first middle frame 100 includes the first connection plate 110 with different end structures, one end of which is provided with the first card slot 131 structure, and the other end of which is provided with the groove or the tooth structure. Specifically, 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 two ends of the second connecting plate 130 are respectively provided with a slot for connecting with the other connecting plate of the second middle frame 200 and the third middle frame 300; correspondingly, one end of one connecting plate of the second middle frame 200 and the third middle frame 300 is provided with a tooth part and a groove for connecting with the first connecting plate 110, and one end of the other connecting plate of the second middle frame 200 and the third middle frame 300 is provided with a buckle for connecting with the second connecting plate 130.

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

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

In this embodiment, the structure of the third middle frame 300 is the same as that of the second middle frame 200, and the third middle frame 300 and the first middle frame are aligned in the direction perpendicular to the first direction and the second direction, and the second direction. In addition, the second middle frame 200 and the third middle frame 300 with the same structure can adopt the same mold, and additional mold opening is not needed, so that the manufacturing cost is reduced.

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

Specifically, the first connecting plate 110, the second connecting plate 130, the third connecting plate 210, the fourth connecting plate 230, the fifth connecting plate 310, and the sixth connecting plate 330 have the same thickness direction. The thickness direction of the fifth connecting plate 330 is a third direction, a third mounting hole is formed through the fifth connecting plate 330, the third mounting hole is a salad hole, and the third mounting hole is used for mounting a countersunk screw 900, so that the third middle frame 300 is connected with the backboard 400.

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

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

In a possible embodiment, the third middle frame 300, the first middle frame 100 and the second middle frame 300 connected in sequence form a cavity structure, and a reserved space is formed at an opening of the cavity structure, namely, at a side opposite to the first middle frame 100, and the reserved space can be used for accommodating a decorative part of a display device, such as a speaker of the display device. The decoration part of the display device may be located at a side of a 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 12, an embodiment of the present application provides a display module, including a back panel 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 mounted on one side of the center frame structure.

In a possible embodiment, the back view of the display module is shown in fig. 10, 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 middle frame, the upper middle frame and the left middle frame are connected in sequence to form a middle frame structure, the back plate 400 is assembled in a cavity defined by the middle frame structure, and the middle frame structure provides enough support for supporting the back plate 400.

In some embodiments, the back panel 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 do not coincide 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 the screw 900 is mounted.

Specifically, as shown in fig. 14, before the screw 900 is installed, the first installation hole 500 and the second installation hole 430 are eccentrically arranged in the first direction, and optionally, the axial direction L2 of the first installation hole and the axial direction L2 of the first installation hole are separated by 0.1 mm in the first direction, that is, the first installation hole is eccentric by 0.1 mm. When the screw 900 is installed, the eccentric arrangement causes the second middle frame 200 (or the third middle frame 300) having the first installation hole 500 and the back plate 400 to move relatively close to each other until the first installation hole 500 and the second installation hole 430 are concentrically arranged, so that the second middle frame 200 is accurately positioned in the first direction, and thus, the alignment of the first middle frame 100 and the second middle frame 200 in the first direction is achieved.

In some embodiments, as shown in fig. 14-17, the display module includes a light guide plate 600, an optical film 700 and a plastic frame 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 the light guide plate 600 and the optical film 700 on a side 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 group is fixedly disposed on one side of the light guide plate 600 away from the reflective sheet 1000, a part of the side of the light guide plate 600 is fixedly connected with the frame of the back plate 400 for the back plate 400 to support the light guide plate 600 and the optical film 700, 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 middle frame structure includes a first middle frame 100 and a second middle frame 200, which are aligned, assembled and fixed in a first direction, a second opposite direction and a third direction perpendicular to each other, specifically, the first middle frame 100 is assembled with the backplate 400 through the positioning slot 132 and the positioning hole 133, an axial direction L2 of a first mounting hole of the second middle frame 200 and an axial direction L1 of a second mounting hole on the backplate 400 are parallel and do not coincide in the first direction, so that when the screw 900 is installed, the second middle frame 200 and the backplate 400 move relatively 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 first middle frame 100 and the second middle frame 200 are aligned in the first direction; one end of the first middle frame 100 is provided with a first clamping groove 131, and the groove bottom of the first clamping groove 131 faces to the first direction, so that the wall surface of the groove is intersected with the second direction; one end of the second middle frame 200 is provided with a first buckle 231, the first buckle 231 protrudes along the first direction, so that at least one surface of the first buckle 231 intersects with the second direction, the first buckle 231 is clamped in the first clamping groove 131, and a groove wall surface intersecting with the second direction and at least one surface of the first buckle 231 form a limiting structure in the second direction, so that the first middle frame 100 and the second middle frame 200 are aligned in 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 step-shaped offset structure in the 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 step-shaped offset structure in the third direction, the first tooth portion 1122 is placed in the second groove 2122, the second tooth portion 2111 is placed in the first groove 1111, a limit structure in the third direction is formed, and alignment of the first middle frame 100 and the second middle frame 200 in the third direction is achieved.

Based on the same inventive concept, the embodiment of the present application provides a display device, including the display module of any one of the aspects provided in the second aspect of the embodiment 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 display module, as shown in fig. 18, the method mainly includes steps S110 to S140:

step S110: the first middle frame 100 is assembled to one side of the rear plate 400 after extending in the first direction.

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

Step S130: while second tooth 2111 is inserted into first notch 1111, first tooth 1122 is inserted into second notch 2122, and first hook 231 is engaged with first slot 131.

The second connecting plate 130 includes a positioning slot 132 and a positioning hole 133, 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.

One end of the first sub-link plate 111 and one end of the second sub-link plate 112 have a step along the thickness direction of the first link plate 110, a step structure is formed, such that a first groove 1111 is formed at one end of the first sub-link plate 111, such that a first tooth 1122 is formed at one end of the second sub-link, and a region where a projection of the first sub-link plate 111 in the thickness direction of the first link plate 110 and a projection of the second sub-link plate 112 in the thickness direction of the first link plate 110 do not overlap is the first tooth 1122.

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

The groove bottom of the first clamping groove 131 at one end of the second connecting plate 130 faces the second direction, the first buckle 231 at one end of the fourth connecting plate 230 protrudes out of the side face of the fourth connecting plate 230 in the second direction, and the first 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.

In this embodiment, the end of the first middle frame 100 extending in the first direction has a first groove 1111, a first tooth 1122 and a first slot 131, and the end of the second middle frame 200 extending in the second direction has a second groove 2122, a second tooth 2111 and a first catch 231; by the first tooth portion 1122 being received in the second groove 2122 and the second tooth portion 2111 being received in the first groove 1111, accurate 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 addition, the first middle frame 100 and the second middle frame 200 are precisely aligned in the second direction by the clamping of the first buckle 231 and the first clamping groove 131; the connection structure of the first middle frame 100 and the second middle frame 200 realizes alignment in two directions, realizes accurate positioning and splicing of middle frame splicing, reduces the difficulty of middle frame splicing, improves the splicing precision of the middle frames, and improves the appearance attractiveness of the middle frame splicing.

In some embodiments, the step S120: after inserting the second tooth 2111 into the first groove 1111 and inserting the first tooth 1122 into the second groove 2122 to engage the first catch 231 with the first catch groove 131, the method includes:

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

In some embodiments, the step S130: after inserting the second tooth 2111 into the first groove 1111 and inserting the first tooth 1122 into the second groove 2122 to engage the first catch 231 with the first catch groove 131, the method includes:

while the fourth tooth 2121 is inserted into the third groove 1121, the third tooth 1112 is inserted into the fourth groove 2112.

In this embodiment, the first middle frame 100 and the second middle frame 200 are aligned in a direction perpendicular to the first direction and the second direction by the first tooth 1122 being received in the second groove 2122, the second tooth 2111 being received in the first groove 1111, the third tooth 1112 being received in the fourth groove 2112, and the fourth tooth 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 does not coincide with the axial direction L1 of the second mounting hole of the back plate 400, 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 axial direction L1 of the second mounting hole after the screw 900 is mounted coincide.

In this embodiment, before the screw 900 is installed, the first installation hole 500 and the second installation hole 430 are eccentrically arranged in the first direction, and optionally, the axial direction L2 of the first installation hole and the axial direction L2 of the first installation hole are separated 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 causes the second middle frame 200 (or the third middle frame 300) having the first installation hole 500 and the back plate 400 to move relatively close to each other until the first installation hole 500 and the second installation hole 430 are concentrically arranged, so that the second middle frame 200 is accurately positioned in the first direction, and thus, the alignment of the first middle frame 100 and the second middle frame 200 in the first direction is achieved.

In some embodiments, in step S101 above: after extending the first middle frame 100 along the first direction and before assembling to one side of the back plate 400, the method includes:

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

In a possible embodiment, the reflective sheet 1000 is assembled 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 group of optical films 700 is fixedly disposed on one side of the light guide plate 600 away from the reflective sheet 1000, 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.

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 slot 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 catch 231; by the first tooth portion 1122 being received in the second groove 2122 and the second tooth portion 2111 being received in the first groove 1111, accurate 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 addition, the first middle frame 100 and the second middle frame 200 are precisely aligned in the second direction by the clamping of the first buckle 231 and the first clamping groove 131; the connection structure of the first middle frame 100 and the second middle frame 200 realizes alignment in two directions, realizes accurate positioning and splicing of middle frame splicing, reduces the difficulty of middle frame splicing, improves the precision of middle frame splicing, can reduce the processing difficulty and the splicing difficulty of various middle frames, can reduce the production cost, and improves the appearance attractiveness of middle frame splicing.

Those of skill in the art will appreciate that the various operations, methods, steps in the processes, acts, or solutions discussed in this application can be interchanged, modified, combined, or eliminated. Further, other steps, measures, or schemes in various operations, methods, or flows that have been discussed in this application can be alternated, altered, rearranged, broken down, combined, or deleted. Further, steps, measures, schemes in the prior art having various operations, methods, procedures disclosed in the present application may also be alternated, modified, rearranged, decomposed, combined, or deleted.

In the description of the present application, it is to 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 those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

The terms "first", "second" and "first" 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 defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any 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, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless explicitly stated herein. Moreover, at least a portion of the steps in the flow chart of the figure may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed alternately or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

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

Claims

1. A middle frame 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;

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;

a second tooth part arranged at one end of the third sub-connecting plate is accommodated in a first groove formed at one end of the first sub-connecting plate, and a first tooth part arranged at one end of the second sub-connecting plate is accommodated in a second groove formed at one end of the fourth sub-connecting plate;

and a first buckle arranged at one end of the fourth connecting plate is clamped in a first clamping groove formed at one end of the second connecting plate.

2. The middle frame structure according to claim 1,

a fourth tooth portion arranged at one end of the fourth sub-connecting plate is accommodated in a third groove formed at one end of the second sub-connecting plate, and a third tooth portion arranged at one end of the second sub-connecting plate is accommodated in a fourth groove formed at one end of the fourth sub-connecting plate.

3. The middle frame structure according to claim 1,

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 the direction far 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 the direction away from the first side wall surface is not more than 5 degrees.

4. The middle frame structure according to claim 1, wherein the first connecting plate and the third connecting plate further include a first mounting hole, and an axial direction of the first mounting hole extends in a third direction perpendicular to the first direction and the second direction.

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

the bottom of the positioning clamping groove faces to the direction far away from the first side plate and is used for being clamped with the positioning bulge of the back plate;

the axial direction of locating hole is followed the third direction extends for with the location buckle joint of backplate.

6. The middle frame structure according to claim 1,

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 according to claim 1,

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

8. The middle frame structure according to claim 1,

one end of the first side plate close to the second side plate is provided with an arc-shaped surface.

9. The middle frame structure according to any one of claims 1 to 8, further comprising a third middle frame extending in the second direction;

the structure of the third middle frame is in mirror symmetry 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 a third cavity is formed by the third middle frame and the second middle frame.

10. The middle frame structure according to any one of claims 1 to 8, further comprising a third middle frame 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, the third middle frame and the second middle frame are oppositely arranged, and a fourth cavity is formed by the third middle frame and the second 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 connected in sequence, the fifth connecting plate and the sixth connecting plate being disposed opposite to each other and forming 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 at 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 at one end of the sixth sub-connecting plate;

and a second buckle arranged at one end of the sixth connecting plate is clamped in a second clamping groove formed at the other end of the first connecting plate.

12. The middle frame structure according to claim 11,

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 according to claim 11,

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

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

the back plate is assembled on one side of the middle frame structure.

15. The display module of claim 14,

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 do not coincide before 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 are overlapped after the screw is mounted.

16. The display module according to claim 14 or 15, further comprising: the light guide plate, the optical film and the rubber frame;

the light guide plate and the optical diaphragm are arranged on one side of the back plate;

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

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 for manufacturing a display module according to any one of claims 14 to 16, comprising:

the first middle frame is assembled to one side of the back plate after extending along the first direction;

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 arranged at one end of a first sub-connecting plate of the first middle frame, aligning a first tooth part arranged at one end of a second sub-connecting plate of the first middle frame with a second groove arranged 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 arranged at one end of a second connecting plate of the first middle frame;

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

19. The method for manufacturing a display module according to claim 18, wherein after the inserting the second tooth portion into the first groove, the inserting the first tooth portion into the second groove, and the engaging the first snap with the first engaging groove, the method further comprises:

and enabling the axial direction of the first mounting hole of the first middle frame and the axial direction of the first mounting hole of the second middle frame to be parallel to and not coincident with the axial direction of the second mounting hole of the back plate, enabling the axial direction of the second mounting hole to be far away from the second side plate, enabling the axial direction of the first mounting hole to be close to the second side plate, and mounting screws, so that the axial direction of the first mounting hole and the axial direction of the second mounting hole after the screws are mounted are coincident.

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

arranging a light guide plate and an optical diaphragm on one side of the back plate;

and one sides of the light guide plate and the optical diaphragm, which are far away from the back plate, are provided with rubber frames.