Bottom shell of LED display module, LED display module and display screen

Abstract

The utility model belongs to the technical field of LED display, and relates to a bottom shell of an LED display module, the LED display module and a display screen, the bottom shell is installed on the back face of an LED lamp panel, and the bottom shell comprises an outer square frame and a reinforcing beam; a first bonding area is arranged on the front face of the outer square frame, the first bonding area and the LED lamp panel are bonded together through an adhesive, and the LED lamp panel and the bottom shell are fixed together. The LED lamp has the advantages that the bottom shell and the LED lamp panel are bonded together through the adhesive, screw mounting hole positions and screw through holes do not need to be formed in the bottom shell, production is simpler, and assembling operation is simpler and faster; meanwhile, due to the fact that the adhesive is resistant to high temperature and low temperature and does not deform, the phenomenon that the bottom shell is heated to deform can be avoided, the problem of the corrugated phenomenon of the LED display screen is solved, the flatness of the screen body is high, and the display effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of LED display, in particular to a bottom shell of an LED display module, an LED display module and a display screen. Background Art

[0002] The assembly of the PCB board and the bottom shell of the existing LED display module is generally done by screwing the screws through the holes on the bottom shell and locking them on the PCB board, so that the PCB board and the bottom shell are locked together. The existing bottom shell has the following problems: due to the need to cooperate with various PCB boards, the positions and spacings of the screw holes of the bottom shell are various and the colors are different, which leads to increased complexity of the product and the problem of incorrect screw hole positions is prone to occur during installation. In addition, since the screw holes are located close to each other and there are many of them, a large number of tiny injection needles need to be set inside the plastic mold. However, during the injection molding process, problems such as broken needles and wrong needles frequently occur, which not only reduces production efficiency, but also may affect product quality and waste manpower and material resources.

[0003] Secondly, after the LED display module ages, it is easy to observe obvious corners or edges on the display plane of the LED display screen, that is, the LED display screen appears corrugated. This is usually because the bottom shell of the module will deform after being heated, causing the lamp plane at the screw locking position to sag. When each LED display module is dented, the LED display screen will appear corrugated, and the display effect will be poor. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a bottom shell of an LED display module, an LED display module and a display screen, which solve the technical problems that the bottom shell of the existing LED display module has a complex structure and is easily deformed after being heated, resulting in poor display effect of the LED display screen.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0008] In a first aspect, an embodiment of the utility model provides a bottom shell of an LED display module, which is installed on the back of an LED light board of the LED display module, and the bottom shell includes an outer frame and reinforcing beams connecting two opposite sides of the outer frame;

[0009] A first bonding area is provided on the front side of the outer frame along its circumferential direction, and the first bonding area is bonded to the back edge of the LED light board through an adhesive to fix the LED light board to the bottom shell.

[0010] Optionally, the reinforcing beam includes a longitudinal beam and a transverse beam that intersect each other perpendicularly, a second bonding area is provided on the front side of the longitudinal beam, and the second bonding area is bonded to the back side of the LED light board by an adhesive.

[0011] Optionally, the first bonding area and the second bonding area are both configured as planes; or

[0012] The front sides of the outer square frame and the longitudinal beam are both provided with accommodating grooves for adhesive, correspondingly forming a first bonding area and a second bonding area.

[0013] Optionally, the reinforcing beam includes a longitudinal beam and a transverse beam perpendicularly intersecting each other, and the front sides of the longitudinal beam and the transverse beam are in contact with the back side of the LED light board;

[0014] The longitudinal beam and / or the transverse beam are provided with screw installation holes, and each screw installation hole is provided with a plurality of screw through holes.

[0015] Optionally, the reinforcing beam includes a longitudinal beam and a transverse beam that intersect each other perpendicularly, and no screw installation holes are provided on the longitudinal beam and the transverse beam.

[0016] Optionally, a mounting ear is provided on the inner side of the outer frame along its circumferential direction, and a module mounting hole or a magnet is provided on the mounting ear.

[0017] Optionally, the adhesive includes two-component epoxy adhesive, polyurethane adhesive and silicone adhesive.

[0018] In a second aspect, an embodiment of the utility model provides an LED display module, including an LED light board and the aforementioned bottom shell, wherein the edges around the front side of the bottom shell are bonded to the back side of the LED light board by adhesive.

[0019] In a third aspect, an embodiment of the utility model provides an LED display screen, comprising a plurality of the aforementioned LED display modules.

[0020] (III) Beneficial effects

[0021] The beneficial effects of the utility model are:

[0022] 1. The utility model discloses a bottom shell of an LED display module, an LED display module and a display screen. Since a first bonding area is arranged around the front of the bottom shell, and the bottom shell is bonded to the LED light board by an adhesive, compared with the prior art, it abandons the bolt installation method, does not need to set screw installation holes on the bottom shell, and does not need to set screw through holes, so the production is simpler and the assembly operation is simpler and faster. At the same time, since the adhesive is resistant to high and low temperatures and does not deform, the bottom shell is prevented from being deformed by heat, which solves the problem of the corrugated phenomenon of the LED display screen, and the screen body has high flatness and good display effect.

[0023] 2. The bottom shell and the LED light board are bonded together with adhesive, which can match all PCB circuit boards on the market and is not restricted by PCB circuit board brands.

[0024] 3. The bottom shell and the LED light board are bonded together by adhesive. The bonding method does not limit the size of the bottom shell and the PCB circuit board. It can be applied to all specifications and sizes. The shape of the bottom shell can be diversified and suitable for different environments and scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a front view schematic diagram of a bottom shell of an LED display module, an LED display module and a display screen in Embodiment 1 of the present invention;

[0026] Figure 2 It is a front view schematic diagram of a bottom shell of an LED display module, an LED display module and a display screen according to Embodiment 2 of the present invention;

[0027] Figure 3 A schematic rear view of a bottom shell of an LED display module, an LED display module and a display screen according to Embodiment 3 of the present invention;

[0028] Figure 4 It is a front view schematic diagram of a bottom shell of an LED display module, an LED display module and a display screen of Example 3 of the utility model;

[0029] Figure 5 A schematic rear view of a bottom shell of an LED display module, an LED display module and a display screen according to a fourth embodiment of the present invention;

[0030] Figure 6 A schematic front view of a bottom shell of an LED display module, an LED display module and a display screen of Embodiment 4 of the utility model (the crossbeam is not shown);

[0031] Figure 7 This is a schematic diagram (partial) of an LED display module test of Example 5 of a bottom shell of an LED display module, an LED display module and a display screen of the utility model.

[0032] [Description of Reference Numerals]

[0033] 1. LED lamp beads;

[0034] 2. PCB circuit board;

[0035] 3. Adhesive;

[0036] 4. Bottom shell;

[0037] 41. Outer frame; 410. First bonding area; 42. Longitudinal beam; 420. Second bonding area; 43. Horizontal beam; 44. Mounting ear; 45. Screw mounting hole. DETAILED DESCRIPTION

[0038] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below in conjunction with the accompanying drawings through specific implementation methods. Figure 7 The orientation is taken as a reference, with the direction where the LED lamp bead 1 is located being the “front”, and the direction where the bottom shell 4 is located being the “back”.

[0039] The embodiment of the utility model proposes a bottom shell of an LED display module, an LED display module and a display screen, wherein the bottom shell is installed on the back of an LED light board of the LED display module, and the bottom shell includes an outer square frame and reinforcing beams connecting two opposite sides of the outer frame; a first bonding area is provided on the front side of the outer square frame along its circumferential direction, and the first bonding area is bonded to the back edge of the LED light board by an adhesive to fix the LED light board and the bottom shell together; since the bottom shell and the LED light board are bonded together by an adhesive, compared with the prior art, it abandons the bolt installation method, does not need to set screw installation holes on the bottom shell, does not need to set screw through holes, and is simpler to produce and simpler and quicker to assemble; at the same time, since the adhesive is resistant to high and low temperatures and does not deform, deformation of the bottom shell due to heat is avoided, the problem of the corrugated phenomenon of the LED display screen is solved, the screen body has high flatness and good display effect.

[0040] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0041] Embodiment 1:

[0042] Reference Figure 1 , this embodiment 1 provides a bottom shell of an LED display module.

[0043] The bottom shell 4 includes an outer frame 41 and reinforcing beams connecting two opposite sides of the outer frame 41. The front of the outer frame 41 is provided with a first bonding area 410 along its circumferential direction. The first bonding area 410 is set as a plane, and the front of the outer frame 41 is provided with a receiving groove for receiving the adhesive 3, forming the first bonding area 410. The first bonding area 410 is bonded to the back edge of the LED light board through the adhesive 3, and the LED light board is fixed to the bottom shell 4.

[0044] The reinforcing beam includes a longitudinal beam 42 and a transverse beam 43 that intersect each other perpendicularly, and no screw mounting holes 45 are provided on the longitudinal beam 42 and the transverse beam 43. The inner side of the outer frame 41 is provided with mounting ears 44 along its circumferential direction, and the mounting ears 44 are provided with module mounting holes or magnets, so that the LED display module and the display box are fixed together by bolts or magnets.

[0045] In actual application, the adhesive 3 can be made of a material that is resistant to high and low temperatures and does not deform, such as a two-component epoxy adhesive, a polyurethane adhesive, and an organic silicone adhesive.

[0046] Due to the use of adhesive 3, the existing bolt installation method of the bottom shell 4 and the LED light board is abandoned, and the bottom shell 4 no longer needs to be provided with screw installation holes 45 and screw through holes, so the production is simpler, and the assembly operation with the LED light board is simpler and faster, thereby improving the production efficiency; at the same time, due to the high and low temperature resistance and non-deformation characteristics of the adhesive 3, the bottom shell 4 bonded thereto can be prevented from being deformed due to heat, thereby solving the problem of the corrugated phenomenon of the LED display screen, and the display surface has high flatness and good display effect.

[0047] Embodiment 2:

[0048] See also Figure 2 On the basis of Example 1, the reinforcing beam of the bottom shell 4 of this Example 2 is additionally provided with screw installation holes 45, that is, the inner area of ​​the bottom shell 4 is connected to the LED light board by bolt connection.

[0049] Specifically, the front sides of the longitudinal beam 42 and the transverse beam 43 are in contact with the back side of the LED light board; the longitudinal beam 42 is provided with screw mounting holes 45 at the intersection of the transverse beam 43, and each screw mounting hole 45 is provided with a plurality of screw through holes, which can be compatible with LED light boards of various specifications.

[0050] Embodiment 3:

[0051] See also Figure 3 and Figure 4Different from Example 2, the inner edges of the cross beam 43 and the outer frame 41 of Example 3 are both provided with mounting ears 44, and the mounting ears 44 are provided with module mounting holes or magnets, so that the LED display module and the display box can be fixed together by bolts or magnets.

[0052] Embodiment 4:

[0053] See also Figure 5 and Figure 6 In this embodiment, the outer frame of the bottom shell 4 and the longitudinal beam 42 are bonded to the LED light board by adhesive, and are compatible with LED light boards of any specifications without screw through holes.

[0054] The front of the longitudinal beam 42 is provided with a second bonding area 420, and the second bonding area 420 is bonded to the back of the LED light board by the adhesive 3. The second bonding area 420 is set as a plane; or the front of the longitudinal beam 42 is provided with a receiving groove for receiving the adhesive 3, correspondingly forming the second bonding area 420. The second bonding area 420 is connected to the first bonding area 410.

[0055] Embodiment 5:

[0056] See also Figure 7 The present embodiment 5 provides an LED display module, including an LED light board and the aforementioned bottom shell 4, wherein the edges of the front side of the bottom shell 4 are bonded to the back side of the LED light board by an adhesive 3. The LED light board includes a PCB circuit board 2 and an LED lamp bead 1 laid on the front side of the PCB circuit board 2.

[0057] Embodiment 6:

[0058] See also Figures 1 to 7 Based on Example 5, this embodiment provides an LED display screen, including multiple aforementioned LED display modules.

[0059] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0060] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] In the present utility model, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0062] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0063] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A bottom shell of an LED display module, mounted on the back of an LED light board of the LED display module, characterized in that: The bottom shell (4) comprises an outer frame (41) and a reinforcing beam connecting two opposite sides of the outer frame (41); The front side of the outer frame (41) is provided with a first bonding area (410) along its circumferential direction, and the first bonding area (410) is used to bond with the back edge of the LED light board through an adhesive (3) to fix the LED light board and the bottom shell (4) together.

2. The bottom shell of the LED display module according to claim 1, characterized in that: The reinforcing beam comprises a longitudinal beam (42) and a transverse beam (43) which intersect each other perpendicularly, the front side of the longitudinal beam (42) is provided with a second bonding area (420), and the second bonding area (420) is bonded to the back side of the LED light panel by an adhesive (3).

3. The bottom shell of the LED display module according to claim 2, characterized in that: The first bonding area (410) and the second bonding area (420) are both configured as planes; or The front sides of the outer frame (41) and the longitudinal beam (42) are both provided with accommodating grooves for accommodating the adhesive (3), correspondingly forming the first bonding area (410) and the second bonding area (420).

4. The bottom shell of the LED display module according to claim 1, characterized in that: The reinforcing beam comprises a longitudinal beam (42) and a transverse beam (43) which intersect each other perpendicularly, and the front surfaces of the longitudinal beam (42) and the transverse beam (43) are in contact with the back surface of the LED light board; The longitudinal beam (42) and / or the transverse beam (43) are provided with screw installation holes (45), and each of the screw installation holes (45) is provided with a plurality of screw through holes.

5. The bottom shell of the LED display module according to claim 1, characterized in that: The reinforcing beam comprises a longitudinal beam (42) and a transverse beam (43) which intersect each other perpendicularly, and no screw installation holes (45) are arranged on the longitudinal beam (42) and the transverse beam (43).

6. The bottom shell of the LED display module according to claim 4 or 5, characterized in that: The inner side of the outer frame (41) is provided with a mounting ear (44) along its circumferential direction, and the mounting ear (44) is provided with a module mounting hole or a magnet.

7. An LED display module, characterized in that: The LED display module comprises an LED light board and a bottom shell (4) as described in any one of claims 1 to 6, and the edges around the front side of the bottom shell (4) are bonded to the back side of the LED light board by an adhesive (3).

8. An LED display screen, characterized in that: It comprises a plurality of LED display modules as claimed in claim 7.

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