CN111667780A

CN111667780A - Display screen

Info

Publication number: CN111667780A
Application number: CN202010711251.6A
Authority: CN
Inventors: 李振龙; 谭安春; 杨俊丰; 汪生和; 何东
Original assignee: Liya Wisdom Display Shenzhen Co ltd
Current assignee: Liya Wisdom Display Shenzhen Co ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2020-09-15

Abstract

The invention relates to a display screen, comprising: the substrate comprises a first surface and a second surface which are oppositely arranged; the light-emitting module is arranged on the first surface of the substrate; a bottom case mounted on the second surface of the substrate; and the connecting assembly comprises a first connecting piece and a second connecting piece, the first connecting piece is fixedly connected with the second surface, and the second connecting piece is connected with the bottom shell and mutually locked with the first connecting piece, so that the substrate is fixedly connected with the bottom shell. The display screen can fixedly connect the substrate with the bottom shell through the first connecting piece and the second connecting piece. Because the light-emitting modules are arranged on the first surface of the substrate, and the first connecting piece is fixedly connected to the second surface of the substrate, when the light-emitting modules are densely arranged on the substrate, the connection between the first connecting piece and the second surface of the substrate is not influenced.

Description

Display screen

Technical Field

The invention relates to the technical field of display devices, in particular to a display screen.

Background

An LED (Light Emitting Diode) display screen integrates an electronic technology, a computer technology and an information processing technology, is composed of LED lattices, and adopts a modular structure to perform display control, so that lamp beads are lightened or extinguished to replace screen display contents such as characters, animations, pictures or videos. The LED display screen has the advantages of bright color, wide dynamic range, high brightness, long service life, stable and reliable work and the like, is widely applied to commercial media, cultural performance markets, stadiums, information dissemination, news distribution, security trading and the like, and can meet the requirements of different environments.

To traditional LED display screen, including drain pan, base plate and the lamp pearl of setting on the base plate usually, the base plate passes through the bolt fastening on the drain pan usually. When the lamp beads on the display screen are distributed densely, the space between the lamp beads is not enough to accommodate the head of the bolt, so that the development of the LED display screen is limited.

Disclosure of Invention

In view of the above, it is necessary to provide a display screen to solve the above technical problems.

A display screen, comprising:

the substrate comprises a first surface and a second surface which are oppositely arranged;

the light-emitting module is arranged on the first surface of the substrate;

a bottom case mounted on the second surface of the substrate; and

the connecting assembly comprises a first connecting piece and a second connecting piece, the first connecting piece is fixedly connected to the second surface, and the second connecting piece is connected with the bottom shell and mutually locked with the first connecting piece, so that the substrate is fixedly connected with the bottom shell.

In one embodiment, the first connecting member includes a first fixing portion and a first connecting portion connected to the first fixing portion, the second connecting member includes a second fixing portion and a second connecting portion connected to the second fixing portion, the first fixing portion is connected to the second surface, the second fixing portion is connected to the bottom case, and the first connecting portion and the second connecting portion are locked to each other.

In one embodiment, a first positioning structure is arranged on the substrate, and a second positioning structure capable of being matched with the first positioning structure in an inserted manner is arranged on the first connecting piece.

In one embodiment, the first positioning structure is one of a positioning column and a positioning hole, and the second positioning structure is the other of the positioning column and the positioning hole.

In one embodiment, the first fixing portion is provided with a plurality of tooth-shaped structures arranged at intervals.

In one embodiment, the tooth-shaped structure is provided with an inclined portion so that the thickness of the tooth-shaped structure becomes thinner gradually along a direction from the middle of the first fixing portion to the outer periphery of the first fixing portion.

In one embodiment, the second connecting member includes a second fixing portion and a second connecting portion fixedly connected to the second fixing portion, the second fixing portion includes an operating portion and a protruding portion, the operating portion is provided with a groove portion, and the protruding portion protrudes relative to a side periphery of the operating portion.

In one embodiment, a sealing member is further disposed between the second connecting member and the bottom case.

In one embodiment, the display screen further comprises a mask and a fastening assembly, the substrate and the light-emitting module are arranged between the mask and the bottom shell, and the mask is connected to the bottom shell through the fastening assembly;

the drain pan includes the shell main part and sets up erection column in the shell main part, the erection column include the main cylinder and connect in the protruding muscle of main cylinder, the main cylinder with protruding muscle all connect in the shell main part, protruding muscle along the axial setting of main cylinder is at the outer peripheral face of main cylinder, be provided with first mounting hole on the face guard, fastening component passes behind the first mounting hole closure in the erection column, so that the face guard with drain pan fixed connection.

A display screen, comprising:

the light-emitting module is arranged on the first surface of the substrate;

the bottom shell is arranged on the second surface of the substrate and comprises a second connecting piece; and

the first connecting piece is fixedly connected to the second surface and can be locked with the second connecting piece, so that the substrate is fixedly connected with the bottom shell.

The display screen can fixedly connect the substrate with the bottom shell through the first connecting piece and the second connecting piece. Because the light-emitting modules are arranged on the first surface of the substrate, and the first connecting piece is fixedly connected to the second surface of the substrate, when the light-emitting modules are densely arranged on the substrate, the connection between the first connecting piece and the second surface of the substrate is not influenced.

Drawings

FIG. 1 is a schematic diagram of an exploded view of a display screen in one embodiment of the present application;

FIG. 2 is a perspective view of a first connector included in a display screen in one embodiment of the present application;

FIG. 3 is a top view of the first connector shown in FIG. 2;

FIG. 4 is a cross-sectional view taken along A-A of the first connector shown in FIG. 3;

fig. 5 and fig. 6 are schematic perspective views of two views of a second connecting member included in a display screen according to an embodiment of the present application;

FIG. 7 is an exploded view of a display screen in the thickness direction in one embodiment of the present application;

fig. 8 is a schematic structural diagram of a bottom case included in a display screen according to an embodiment of the present application.

Reference numerals: 100. a bottom case; 110. a housing main body; 120. an outer frame; 130. mounting a column; 130A, a main column; 130B, convex ribs; 130C, a threaded connection hole; 200. a substrate; 200A, a first positioning structure; 300. a light emitting module; 310. a first side; 320. a second face; 330. a second mounting hole; 400. a face mask; 410. an outer surface; 420. an inner surface; 430. a first mounting hole; 510. a first connecting member; 510A, a second positioning structure; 511. a first fixed part; 511A, a tooth-shaped structure; 511B, an inclined part; 511C, a positioning surface; 512. a first connection portion; 512A, a threaded hole; 520. a second connecting member; 521. a second fixed part; 521A, an operation unit; 521B, a boss; 521C, groove part; 521D, a pressing surface; 522. a second connecting portion; 600. a seal member; 700. and (4) fastening the assembly.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

As shown in fig. 1, fig. 1 is an exploded schematic view of a display screen in an embodiment of the present application, the display screen is used for displaying various information such as text, images, and videos, the display screen may include a substrate 200, the substrate 200 includes a first surface 310 and a second surface 320, and further includes a side peripheral surface connecting the first surface 310 and the second surface 320, the first surface 310 of the substrate 200 is mounted with a light emitting module 300, and the second surface 320 of the substrate 200 is mounted with a bottom case 100. The light emitting module 300 is mounted on the first surface 310 of the substrate 200, and it should be understood that the light emitting module 300 may be in direct contact with the first surface 310, and the light emitting module 300 may be connected to the first surface 310 through other components. Bottom case 100 is mounted on second side 320 of substrate 200, and it should be understood that bottom case 100 may directly contact first side 310, and bottom case 100 may be connected to first side 310 through other parts. The substrate 200 may be a Printed Circuit Board (PCB), which is also called a PCB and used for carrying electronic components such as the light emitting module 300, wherein the light emitting module 300 is electrically connected to the substrate 200 to transmit electrical signals for the light emitting module 300 through the substrate 200. The substrate 200 is fixedly connected to the bottom case 100 through a connecting assembly. Typically the connection assembly may be a screw. For example, screws may be inserted through the base plate 200 and then screwed to the bottom chassis 100.

With the increase of the distribution density of the light emitting modules 300 on the substrate 200, in order to connect the substrate 200 and the bottom case 100, a connecting assembly in an embodiment of the present application includes a first connecting member 510 and a second connecting member 520, the first connecting member 510 is fixedly connected to the second side 320 of the substrate 200, and the second connecting member 520 is connected to the bottom case 100 and is locked with the first connecting member 510, so that the substrate 200 and the bottom case 100 are fixedly connected.

For example, as shown in fig. 1, the first connector 510 includes a first fixing portion 511 and a first connection portion 512 connected to the first fixing portion 511; the second connector 520 includes a second fixing portion 521 and a second connecting portion 522 connected to the second fixing portion 521. The first connecting member 510 is fixedly connected to a side of the substrate 200 away from the light emitting module 300, specifically, the first fixing portion 511 is fixedly connected to a side of the substrate 200 away from the light emitting module 300, that is, the first fixing portion 511 is fixedly connected to the second surface 320 of the substrate 200. The second connecting member 520 may be a screw, that is, the second fixing portion 521 is a head portion of the screw, and the second connecting portion 522 is a shaft portion of the screw, in which case the first connecting portion 512 is a threaded sleeve. The second connecting portion 522 passes through the hole of the bottom case 100, so that the second fixing portion 521 is supported by one side of the bottom case 100, and the second connecting portion 522 passes through the hole of the bottom case 100 and then is screwed to the first connecting portion 512.

For another example, the first connector 510 includes a first fixing portion 511 and a first connecting portion 512 connected to the first fixing portion 511; the second connector 520 includes a second fixing portion 521 and a second connecting portion 522 connected to the second fixing portion 521. The first fixing portion 511 may be fixedly connected to the second surface 320 of the substrate 200 by glue, and the second fixing portion 521 may be fixedly connected to the bottom case 100 by glue. The first connection portion 512 may be a first buckle, the second connection portion 522 may be a second buckle, and the first buckle and the second buckle may be locked with each other. When in use, the first connecting portion 512 and the second connecting portion 522 are aligned and fastened, so that the substrate 200 is fixedly connected to the bottom case 100.

In one embodiment, a display screen is further provided, which includes a substrate 200 having a first side 310 and a second side 320 opposite to each other, a light emitting module 300 disposed on the first side 310 of the substrate 200, and a bottom case 100 disposed on the second side 320 of the substrate 200. The bottom chassis 100 includes a second connector 520, that is, the second connector 520 may be a component of the bottom chassis 100, the second connector 520 is disposed on a surface of the bottom chassis 100 facing the substrate 200, and the second connector 520 may be integrally formed with the bottom chassis 100. The display screen further includes a first connector 510, the first connector 510 is fixedly connected to the second surface 320 of the substrate 200, and the connection manner of the first connector 510 and the substrate 200 is not limited to glue connection. The first connector 510 and the second connector 520 can be locked with each other, so that the substrate 200 is fixedly connected with the bottom case 100.

In the above embodiments, the substrate 200 and the bottom case 100 can be fixedly connected through the first connector 510 and the second connector 520. Since the light emitting modules 300 are disposed on the first surface 310 of the substrate 200 and the first connectors 510 are fixedly connected to the second surface 320 of the substrate 200, when the light emitting modules 300 are densely arranged on the substrate 200, the connection between the first connectors 510 and the second surface 320 of the substrate 200 is not affected.

Referring to the structure of the first connector 510 in detail, fig. 2 is a perspective view of the first connector 510 in one embodiment, fig. 3 is a plan view of the first connector 510 shown in fig. 2, and fig. 4 is a sectional view of the first connector 510 shown in fig. 3 taken along a direction a-a.

As shown in fig. 2 to 4, the first connector 510 includes a first fixing portion 511 and a first connecting portion 512, and the first fixing portion 511 and the first connecting portion 512 are fixedly connected. The first connecting portion 512 is provided with a threaded hole 512A, and the threaded hole 512A is used for being in threaded fit with the second connecting portion 522. The first fixing portion 511 is provided with a positioning surface 511C, and the positioning surface 511C is used for abutting against the second surface 320 of the substrate 200. The positioning surface 511C is a plane so as to flatly abut against the second surface 320, and particularly, when the first connecting member 510 is fixedly connected to the second surface 320 by glue, the plane structure can be uniformly coated with the glue. In addition, the first fixing portion 511 is provided with a plurality of tooth-shaped structures 511A at intervals on the lateral periphery thereof, when the first connecting member 510 and the substrate 200 need to be disassembled, each tooth-shaped structure 511A is more easily bent and deformed due to the plurality of tooth-shaped structures 511A at intervals, and a tool can be inserted between one tooth-shaped structure 511A and the substrate 200 to tilt the first connecting member 510 from the substrate 200.

Further, as shown in fig. 2 and 4, the tooth-shaped structure 511A of the first fixing portion 511 is provided with an inclined portion 511B, so that the thickness of the tooth-shaped structure 511A gradually becomes thinner along a direction from the middle of the first fixing portion 511 to the outer periphery of the first fixing portion 511, when the first connecting element 510 and the substrate 200 need to be detached, the thin portion of the tooth-shaped structure 511A is easier to be tilted, and the thin portion can be easily inserted between the tooth-shaped structure 511A and the substrate 200 by a tool, so as to tilt the first connecting element 510 from the substrate 200.

As shown in fig. 2 to 4, the first fixing portion 511 of the first connecting element 510 is provided with a second positioning structure 510A, as shown in fig. 1, the substrate 200 is provided with a first positioning structure 200A, and the first positioning structure 200A and the second positioning structure 510A can be inserted and matched. For example, when the area of the substrate 200 is large, in order to quickly and accurately mount the first connector 510 to a predetermined position of the substrate 200, the first positioning structure 200A may be provided on the substrate 200 in advance, and when it is necessary to mount the first connector 510 on the substrate 200, the second positioning structure 510A on the first connector 510 is mounted in alignment with the first positioning structure 200A on the substrate 200, so that the first connector 510 may be accurately mounted on the substrate 200 according to the predetermined position.

For example, the first positioning structure 200A may be a positioning hole, and the second positioning structure 510A may be a positioning column, which is inserted into and matched with the positioning hole. For another example, the first positioning structure 200A may be a positioning post, and the second positioning structure 510A may be a positioning hole. When the first positioning structure 200A is a positioning hole, the positioning hole may penetrate through the substrate 200 along the thickness direction of the substrate 200, or the positioning hole may be a blind hole.

As shown in fig. 5 and 6, fig. 5 and 6 are schematic perspective views of two views of the second connector 520 in one embodiment. The second connecting member 520 includes a second fixing portion 521 and a second connecting portion 522 fixedly connected to the second fixing portion 521. The second connecting portion 522 is a cylindrical structure, a threaded section is disposed on the second connecting portion 522, and the second fixing portion 521 is fixedly connected to one end of the second connecting portion 522. The second fixing portion 521 includes an operating portion 521A and a protruding portion 521B, which are fixedly connected, a recessed portion 521C is disposed on the operating portion 521A, the recessed portion 521C is used for being engaged with an external tool, and the recessed portion 521C is inserted into the tool to drive the second connecting member 520 to rotate, so that the threaded section of the second connecting portion 522 is in threaded engagement with the threaded hole 512A of the first connecting portion 512. The side periphery of the protruding portion 521B opposite to the operating portion 521A is protruded, a surface of the protruding portion 521B away from the operating portion 521A is a pressing surface 521D, the pressing surface 521D is a plane, and when the second connector 520 is assembled with the bottom case 100, the pressing surface 521D of the protruding portion 521B presses against the bottom case 100. Since the protruding portion 521B is convex, the pressing surface 521D of the protruding portion 521B has a larger contact area with the bottom case 100, so that the contact pressure between the protruding portion 521B and the bottom case 100 is small, and the bottom case 100 is prevented from being broken by too much locking force.

As shown in fig. 1, the display panel is locked to each other by the first connector 510 and the second connector 520 to fixedly connect the substrate 200 to the bottom chassis 100. The second connecting member 520 passes through the hole of the bottom case 100, so that the second fixing portion 521 is supported by one side of the bottom case 100, and the second connecting portion 522 passes through the hole of the bottom case 100 and then is screwed to the first connecting portion 512. In order to increase the waterproof property of the display screen, water outside the bottom chassis 100 is prevented from entering between the bottom chassis 100 and the substrate 200 through the hole on the bottom chassis 100, and a sealing member 600 is further provided between the second connector 520 and the bottom chassis 100. When the sealing member 600 is installed, the sealing member 600 is disposed between the second fixing portion 521 and the bottom case 100, and the sealing member 600 is pressed by the second fixing portion 521 to seal the hole of the bottom case 100. For example, the sealing member 600 may be made of an elastic material, and the sealing member 600 is elastically deformed by the second fixing portion 521 and the bottom case 100 co-pressing the sealing member 600, and specifically, the sealing member 600 may be elastically deformed according to the shape of the surface of the second fixing portion 521 contacting the sealing member 600, and the sealing member 600 may also be elastically deformed according to the shape of the surface of the bottom case 100 contacting the sealing member 600. Therefore, even if the bottom case 100 has a minute projection or the second non-fixed portion has a minute projection, the sealing member 600 can provide an excellent sealing effect.

For example, the sealing member 600 may have a ring structure, that is, the sealing member 600 is provided with an insertion hole into which the second connection portion 522 is inserted, and an outer circumference of the second connection portion 522 can be closely fitted to an inner circumference of the insertion hole, thereby achieving excellent waterproof and dustproof effects.

As shown in fig. 7, fig. 7 is an exploded view of a display screen in a thickness direction in an embodiment, and the display screen includes a substrate 200, a light emitting module 300, a mask 400, a fastening assembly 700, and a bottom chassis 100. The cover 400 and the bottom chassis 100 enclose a space for accommodating the light emitting module 300 and the substrate 200. Specifically, the light emitting module 300 is disposed on the substrate 200, the substrate 200 is disposed on the bottom case 100, and the fastening assembly 700 is used for fixedly connecting the cover 400 and the bottom case 100. Further, the light emitting module 300 is located between the substrate 200 and the mask 400.

The bottom chassis 100 and the cover 400 enclose a space for accommodating the light emitting module 300 and the substrate 200, and the cover 400 is connected to the bottom chassis 100 by a fastening assembly 700. Fig. 8 is a schematic structural view of the bottom chassis 100 in an embodiment, and the bottom chassis 100 includes a housing main body 110 and a mounting post 130 disposed on the housing main body 110. Referring to fig. 7 and 8, the substrate 200 is provided with a second mounting hole 330, the mask 400 is provided with a first mounting hole 430, the mounting post 130 can be inserted into the second mounting hole 330, and the fastening assembly 700 can be inserted into the first mounting hole 430 and then locked with the mounting post 130, so that the mask 400 and the bottom case 100 are fixedly connected. For example, as shown in fig. 8, a threaded connection hole 130C may be formed on the mounting post 130, the fastening assembly 700 may be a structure, such as a bolt or a screw, having a threaded section, and the threaded section of the fastening assembly 700 is threaded into the threaded connection hole 130C of the mounting post 130 after passing through the first mounting hole 430. For another example, the mounting post 130 may be provided with a first snap structure, the fastener may be provided with a second snap structure, and after the fastening assembly 700 passes through the first mounting hole 430, the first snap structure is locked to the second snap structure on the mounting post 130.

It should be understood that, since the mounting posts 130 are used for locking with the fastening assembly 700, so as to fixedly connect the cover 400 and the bottom case 100, the mounting posts 130 are required to bear a large locking force, the bottom case 100 is usually made of plastic material, the bottom case 100 has a certain bending resistance, but when the locking force between the fastening assembly 700 and the mounting posts 130 is large, the mounting posts 130 are still easy to break. In order to prevent the mounting post 130 from being broken, i.e., to increase the structural strength of the mounting post 130, the mounting post 130 may include a main cylinder 130A and a rib 130B connected to the main cylinder 130A, the main cylinder 130A and the rib 130B are both connected to the housing main body 110, and the rib 130B is disposed on the outer circumferential surface of the main cylinder 130A along the extending direction of the main cylinder 130A. Here, the extending direction may be understood as an extending direction of the main column 130A when the main column 130A is a cylinder, which is an axial direction thereof, or may be understood as a height direction of the mounting column 130. The convex rib 130B is arranged on the main column 130A, so that the structural strength of the main column 130A is increased, and compared with the single thin main column 130A, the mounting column 130 has stronger tensile and bending resistance, can bear larger locking force, and is not easy to break.

In one embodiment, as shown in fig. 8, the mounting post 130 includes a main cylinder 130A and at least two ribs 130B, the two ribs 130B and the main cylinder 130A are both connected to the housing main body 110, the two ribs 130B are disposed on the outer circumferential surface of the main cylinder 130A along the extending direction of the main cylinder 130A, and the two ribs 130B are disposed opposite to each other in the circumferential direction of the main cylinder 130A, for example, the two ribs 130B are disposed on both sides of the main cylinder 130A along the radial direction of the main cylinder 130A, that is, the two ribs 130B are disposed at intervals of 180 degrees in the circumferential direction of the main cylinder 130A. When the mounting post 130 is bent, one of the ribs 130B is under tensile stress, the other rib 130B is under compressive stress, and the two ribs 130B cooperate to reinforce the structural strength of the main column 130A.

For another example, as shown in fig. 2, the mounting post 130 includes a main column 130A and at least two ribs 130B, the two ribs 130B and the main column 130A are both connected to the shell main body 110, the two ribs 130B are disposed on the outer circumferential surface of the main column 130A along the extending direction of the main column 130A, and the two ribs 130B are disposed at intervals of 90 degrees in the circumferential direction of the main column 130A. When the mounting post 130 is bent, the two ribs 130B may both receive tensile stress, or the two ribs 130B may both receive compressive stress, and the two ribs 130B act together to reinforce the structural strength of the main column 130A.

Of course, the relative position of the rib 130B and the main column 130A is not limited to the structure in the above embodiment, for example, four ribs 130B may be provided, and the four ribs 130B are arranged at equal intervals along the circumferential direction of the main column 130A.

In the present application, the strength of the mounting post 130 is increased by disposing the ribs 130B at intervals on the outer circumference of the main column 130A, rather than increasing the cross section of the main column 130A as a whole to increase the strength of the main column 130A. As shown in fig. 7, the second mounting hole 330 is formed in the base plate 200, and the mounting post 130 needs to be inserted into the second mounting hole 330 to lock with the fastening assembly 700, so that if the cross section of the main post 130A is increased to increase the strength of the main post 130A, the diameter of the second mounting hole 330 is increased. Since the substrate 200 may be a PCB on which the light emitting modules 300 and the printed circuits are disposed, when the light emitting modules 300 or the printed circuits are densely distributed, the second mounting holes 330 having a large aperture interfere with the light emitting modules 300 and the printed circuits.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, 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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A display screen, comprising:

a substrate (200), the substrate (200) comprising a first face (310) and a second face (320) arranged opposite to each other;

a light emitting module (300) mounted on a first surface (310) of the substrate (200);

a bottom case (100) attached to a second surface (320) of the substrate (200); and

the connecting assembly comprises a first connecting piece (510) and a second connecting piece (520), the first connecting piece (510) is fixedly connected to the second surface (320), the second connecting piece (520) is connected with the bottom shell (100) and is mutually locked with the first connecting piece (510), and therefore the substrate (200) is fixedly connected with the bottom shell (100).

2. The display screen according to claim 1, wherein the first connecting member (510) comprises a first fixing portion (511) and a first connecting portion (512) connected with the first fixing portion (511), the second connecting member (520) comprises a second fixing portion (521) and a second connecting portion (522) connected with the second fixing portion (521), the first fixing portion (511) is connected with the second surface (320), the second fixing portion (521) is connected with the bottom shell (100), and the first connecting portion (512) and the second connecting portion (522) are locked with each other.

3. The display screen according to claim 1, wherein a first positioning structure (200A) is disposed on the substrate (200), and a second positioning structure (510A) capable of being inserted into and matched with the first positioning structure (200A) is disposed on the first connecting member (510).

4. A display screen according to claim 3, wherein the first positioning structure (200A) is one of a positioning post and a positioning hole, and the second positioning structure (510A) is the other of the positioning post and the positioning hole.

5. The display screen according to claim 2, wherein the first fixing portion (511) is provided with a plurality of tooth-like structures (511A) arranged at intervals.

6. A display screen according to claim 5, wherein the tooth-like structure (511A) is provided with an inclined portion (511B) so that the thickness of the tooth-like structure (511A) becomes thinner gradually in a direction from the middle of the first fixing portion (511) to the outer periphery of the first fixing portion (511).

7. The display screen according to claim 1, wherein the second connecting member (520) comprises a second fixing portion (521) and a second connecting portion (522) fixedly connected with the second fixing portion (521), the second fixing portion (521) comprises an operating portion (521A) and a protruding portion (521B), a groove portion (521C) is arranged on the operating portion (521A), and the protruding portion (521B) protrudes relative to the side periphery of the operating portion (521A).

8. The display screen of claim 7, wherein a seal (600) is further disposed between the second connector (520) and the bottom housing (100).

9. The display screen of claim 1, further comprising a cover (400) and a fastening assembly (700), wherein the substrate (200) and the light module (300) are disposed between the cover (400) and the bottom housing (100), and wherein the cover (400) is connected to the bottom housing (100) by the fastening assembly (700);

the bottom shell (100) comprises a shell main body (110) and a mounting column (130) arranged on the shell main body (110), the mounting column (130) comprises a main column body (130A) and a convex rib (130B) connected to the main column body (130A), the main column body (130A) and the convex rib (130B) are both connected to the shell main body (110), the convex rib (130B) is arranged on the outer peripheral surface of the main column body (130A) along the axial direction of the main column body (130A), a first mounting hole (430) is formed in the face shield (400), and the fastening assembly (700) penetrates through the first mounting hole (430) and then is locked on the mounting column (130), so that the face shield (400) is fixedly connected with the bottom shell (100).

10. A display screen, comprising:

a light emitting module (300) disposed on a first surface (310) of the substrate (200);

a bottom case (100) disposed on the second surface (320) of the substrate (200), the bottom case (100) including a second connection member (520); and

the first connecting piece (510) is fixedly connected to the second surface (320), and the first connecting piece (510) and the second connecting piece (520) can be locked with each other to fixedly connect the base plate (200) and the bottom case (100).