CN216084161U - Display module and display device - Google Patents

Abstract

The utility model provides a display module and a display device, comprising a circuit board assembly, a display module and a display device, wherein the circuit board assembly comprises a circuit board body; a plurality of light-emitting units are distributed on the circuit board body; a lens grid assembly comprising a lens grid body; a plurality of lens grating units which are consistent with the light-emitting units in arrangement are distributed on the lens grating body; each of the lens grid cells includes an integrally assembled lens and grid structure. The assembly of the components is designed to be fool-proof, the lens and the grating structure are integrally assembled, the lens assembly step in the assembly of the display module is omitted, the production cost is saved, and the assembly efficiency is improved; the assembly of each component can be realized by using the fool-proof structure, the assembly steps of each component of the display module are simplified, the display problem caused by poor positioning during assembly is avoided, the assembly error rate is reduced, the automation degree of the assembly of the display module is improved, and the reject ratio of the display module and the finished product of the display device is effectively reduced.

Description

Display module and display device

Technical Field

The utility model relates to the technical field of display screens, in particular to a display module and a display device.

Background

The LED display screen has the advantages of high brightness, low power consumption, long service life, impact resistance, stable performance and the like, and can be widely applied. But the inside accessory of current display screen is various, and the assembly is complicated, can lead to the display screen trouble because of manual assembly error inevitable, has greatly influenced assembly efficiency and product defective rate.

SUMMERY OF THE UTILITY MODEL

In view of the above disadvantages of the prior art, the present invention provides a display module and a display device, which are used to solve the technical problems of the prior LED display device, such as many internal fittings, complex assembly, and inevitable display screen failure due to manual assembly error.

To achieve the above object, the present invention provides a display module, comprising: a circuit board assembly including a circuit board body; a plurality of light-emitting units are distributed on the circuit board body; a lens grid assembly comprising a lens grid body; a plurality of lens grating units which are consistent with the light-emitting units in arrangement are distributed on the lens grating body; each of the lens grid cells includes an integrally assembled lens and grid structure.

In some embodiments of the present invention, a light blocking cover assembly is disposed between the lens grid assembly and the circuit board assembly.

In some embodiments of the present invention, the lens grid assembly is provided with a plurality of first positioning portions on a surface facing the light blocking cover assembly, the first positioning portions being arranged in line with the light emitting units; the light blocking cover assembly comprises a light blocking cover body and a plurality of light-passing parts which are arranged on the light blocking cover body and are consistent with the arrangement of the light-emitting units; the light blocking cover assembly is embedded in the lens grid assembly by correspondingly inserting the first positioning part into the light passing part.

In some embodiments of the present invention, the lens grid assembly further has a plurality of second positioning portions on a surface facing the light barrier assembly; the circuit board assembly is correspondingly provided with a plurality of third positioning parts on one surface facing the light blocking cover assembly; the second positioning portion and the third positioning portion are respectively one and the other of a male member and a female member, and fix the relative position between the circuit board assembly and the lens grid assembly by mutually engaging the male member and the female member.

In some embodiments of the utility model, the display module further comprises a mask assembly; the face shield component covers the surface of the lens grid component.

In some embodiments of the present invention, the outer edge of the lens grid assembly is provided with a plurality of first locking portions; the inner edge of the mask component is correspondingly provided with a plurality of second buckling parts; and the lens grille assembly and the face cover assembly are clamped and assembled by mutually clamping and connecting the first clamping part and the second clamping part.

In some embodiments of the present invention, a fixing portion is disposed on a side of the mask assembly facing the lens grille assembly for fastening the mask assembly to the lens grille assembly.

In some embodiments of the present invention, a groove is formed on an edge of the lens grid assembly, so that the housing edge of the housing assembly is inserted into the groove when the housing assembly is fastened to the lens grid assembly; the groove comprises an anti-overflow glue groove.

In some embodiments of the present invention, the housing assembly is provided with an exhaust portion.

The present invention also provides a display device, including: one or more of the display modules are spliced with each other.

As described above, the display module and the display device according to the present invention have the following advantageous effects: the assembly of the components is designed to be foolproof, and the lens and the grating structure are integrally assembled, so that an operator can directly and correctly complete correct operation without paying attention and experience and professional knowledge, and the lens assembly step in the display screen assembly can be omitted, the assembly time is shortened, the production cost is saved, and the assembly efficiency is effectively improved; the lens grid assembly, the light blocking cover assembly, the mask assembly and the circuit board assembly can be assembled quickly by using the fool-proof structure during mutual assembly, the assembly steps of all the components of the display module are simplified, the display problem caused by poor positioning during assembly is avoided, the assembly error rate among the components is reduced, the automation degree of assembly of the display module is improved, and the reject ratio of the display module and a display device is effectively reduced.

Drawings

Fig. 1 is a schematic structural diagram of a display module according to an embodiment of the utility model.

Fig. 2 is a schematic structural diagram of a display module according to an embodiment of the utility model.

Fig. 3 is a schematic view of the assembly between the mask assembly and the lens grille assembly in an embodiment of the present invention.

Fig. 4 is an overall schematic view of the display module after the assembly is completed according to an embodiment of the utility model.

Fig. 5 is a schematic cross-sectional view of a display module after assembly according to an embodiment of the utility model.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. The following detailed description is not to be taken in a limiting sense, and the scope of embodiments of the present application is defined only by the claims of the issued patent. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Spatially relative terms, such as "upper," "lower," "left," "right," "lower," "below," "lower," "above," "upper," and the like, may be used herein to facilitate describing one element or feature's relationship to another element or feature as illustrated in the figures.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," "retained," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Also, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," and/or "comprising," when used in this specification, specify the presence of stated features, operations, elements, components, items, species, and/or groups, but do not preclude the presence, or addition of one or more other features, operations, elements, components, items, species, and/or groups thereof. The terms "or" and/or "as used herein are to be construed as inclusive or meaning any one or any combination. Thus, "A, B or C" or "A, B and/or C" means "any of the following: a; b; c; a and B; a and C; b and C; A. b and C ". An exception to this definition will occur only when a combination of elements, functions or operations are inherently mutually exclusive in some way.

In view of the technical problems of inconvenient assembly of the display module in the prior art, the utility model provides the display module and the display device which are simplified in assembly and have a foolproof positioning design. In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions in the embodiments of the present invention are further described in detail by the following embodiments in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

It should be noted that the display module and the display device in this embodiment include an LED display screen, which is an electronic display screen formed by an LED dot matrix, and the display content forms of the screen, such as the conversion of characters, animations, pictures, and videos, are changed by turning on and off the red and green beads, and the display of the components is controlled by the modular structure. The display screens are of various types, including but not limited to LED digital display screens for making clock screens, interest rate screens, etc. to display numbers, LED dot matrix graphic display screens for playing text or image information, synchronous LED display screens for real-time synchronous image mapping, asynchronous LED display screens capable of being networked by multiple screens and mainly used for offline automatic playing, etc., which is not limited in this embodiment.

Fig. 1 is a schematic structural diagram of a display module according to an embodiment of the utility model. The display module of the embodiment includes a mask assembly 11, a lens grid assembly 12, a light blocking cover assembly 13, a circuit board assembly 14 and a shell assembly 15, and the display module is assembled by the mask assembly 11, the lens grid assembly 12, the light blocking cover assembly 13, the circuit board assembly 14, the shell assembly 15 and spare and accessory parts in sequence.

In some examples, the circuit board assembly 14 includes a circuit board body; a plurality of light emitting units (not shown) are arranged on the circuit board body. The light-emitting unit is, for example, an LED lamp bead, namely, a light-emitting diode, is made of a semiconductor material, can convert electric energy into light energy, and is divided into a round-head lamp bead, an inward-concave lamp bead, an oval D-shaped lamp bead, a square bullet lamp bead, a flat-head lamp bead and the like according to different shapes, and can also be divided into a front light-emitting lamp bead, a side light-emitting lamp bead and the like according to different light-emitting angles.

It should be noted that, the circuit board assembly 14 is not only provided with the LED lamp beads, but also is provided with other electronic components for the display module to normally work, such as an LED driver, a power supply, and the like; in addition, the circuit board assembly is provided with a grounding member with a metal contact point.

The lens grid assembly 12 includes a circuit board body; a plurality of light-emitting units are distributed on the circuit board body; each of the lens grid cells includes an integrally assembled lens and grid structure. Specifically, each of the lens grid units is arranged according to the arrangement of the light emitting units on the circuit board assembly 14, so that the lens grid units and the light emitting units are in one-to-one correspondence. The lens is used for amplifying the light emitting times of the LED lamp beads, and therefore the overall display brightness of the LED display module and the display device is improved. Therefore, when the lens grid assembly 12 is correspondingly covered on the circuit board assembly 14, each lens grid unit on the lens grid assembly 12 corresponds to one light-emitting unit, and the lens cover in each lens grid unit is arranged on the surface of each light-emitting unit.

It is worth noting that the display module of the embodiment carries out fool-proof design on assembly among all components, carries out integrated assembly on the lens and the grating structure, an operator can directly and unmistakably complete correct assembly operation without spending attention, experience and professional knowledge, and therefore the lens assembly step in display module assembly can be omitted, production cost is saved, and assembly efficiency is effectively improved.

In some examples, a light blocking cover assembly 13 is mounted between the lens grid assembly 12 and the circuit board assembly 14, and the light blocking cover assembly 13 can effectively reduce the influence of stray light between the lenses.

As shown in fig. 2 in particular, the lens grid assembly 12 is provided with a plurality of first positioning portions 121 on a surface facing the light blocking cover assembly 13, the first positioning portions being arranged in line with the light emitting units; the light blocking cover assembly 13 comprises a light blocking cover body and a plurality of light-passing parts 131 which are arranged on the light blocking cover body and are consistent with the arrangement of the light-emitting units; the light blocking cover assembly is inserted into the lens grid assembly by inserting the first positioning portion 121 into the light passing portion 131. It should be understood that the first positioning portion 121 may be a positioning post, and the light-passing portion 131 may be a through hole.

In some examples, the lens grid assembly 12 is further provided with a plurality of second positioning portions 122 on a surface thereof facing the light barrier cover assembly 13 for assembling the circuit board assembly 14; the circuit board assembly 14 is correspondingly provided with a plurality of third positioning portions 141 on one surface facing the light blocking cover assembly 13; the second positioning portion 122 and the third positioning portion 141 are one and the other of a male member and a female member, respectively, and fix the relative position between the circuit board assembly 14 and the lens grid assembly 12 by engaging the male member and the female member with each other. For example, the second positioning portion 122 may be a positioning column, and the third positioning portion 141 may be a positioning hole; alternatively, the second positioning portion 122 is a positioning hole, and the third positioning portion 141 is a positioning column.

Further, the circuit board assembly 14 and the lens grid assembly 12 may be threaded to further secure the connection between the two assemblies. Specifically, threaded holes may be provided in the circuit board assembly 14 and the lens grid assembly 12 and fastened to the threaded holes in the circuit board assembly 14 and the lens grid assembly 12, respectively, using screws 17. Therefore, in the present embodiment, the circuit board assembly 14 and the lens grid assembly 12 are directly fixed and assembled, so that the problem of poor display caused by poor positioning can be well avoided.

In some examples, the lens grille assembly 12 and the mask assembly 11 are assembled by clamping, so that the module effect of the display module can be effectively reduced, and a better display effect can be realized. Specifically, a plurality of first buckling parts are arranged on the outer edge of the lens grid assembly 12; the inner edge of the mask component is correspondingly provided with a plurality of second buckling parts; and the lens grille assembly and the face cover assembly are clamped and assembled by mutually clamping and connecting the first clamping part and the second clamping part. It should be noted that the first fastening portion and the second fastening portion are respectively one and the other of the protruding portion and the fastening hole; for example, a plurality of protrusions are disposed on the outer edge of the lens grille assembly 12, a plurality of fastening holes are correspondingly disposed on the inner edge of the mask assembly 11, and the protrusions are fastened into the fastening holes, so that the mask assembly 11 is fastened to the outer surface of the lens grille assembly 12.

In some examples, the side of the face shield assembly 11 facing the lens grille assembly 12 is provided with a securing portion 111, as shown in fig. 3, for further securing the face shield assembly 11 to the lens grille assembly 12, serving to locate and prevent arching of the face shield assembly. The fixing portion 111 preferably adopts fixing posts, positioning holes are formed in the lens grid assembly 12 in an aligned mode, and the fixing posts are correspondingly inserted into the positioning holes to fix the mask assembly 11 and the lens grid assembly 12. It should be understood that the fixing posts are limited in the positioning holes, so that the relative displacement between the mask assembly 11 and the lens grille assembly 12 can be prevented; in addition, the fixing posts are further fastened in the positioning holes after thermal expansion, so that the connection between the mask assembly 11 and the lens grill assembly 12 is more stable.

Further, in order to stably combine the mask assembly and the lens grille assembly under uniform stress, the fixing holes on the lens grille are uniformly and dispersedly provided with a plurality of fixing parts in the middle of the inner side of the mask assembly, so that the local area is prevented from arching or even falling off due to non-uniform fastening force. Additionally, in some examples, the mask assembly may be further secured using fasteners (e.g., screws, etc.) to prevent the mask assembly from arching.

In some examples, the edge of the lens grille assembly 12 is provided with a groove into which the shell edge of the housing assembly 15 is inserted. Specifically, the mask assembly 11, the light blocking cover assembly 13 and the circuit board assembly 14 are assembled into the lens grid assembly 12, the housing assembly 15 is fastened to the lens grid assembly 12, and the shell edge of the housing assembly 15 is inserted into the groove of the lens grid assembly 12, so that the limiting and fixing functions are realized.

Further, the recess is an anti-glue-overflow groove, which is pre-coated with a glue to adhesively connect the lens grid assembly 12 and the housing assembly 15. In addition, the housing assembly 15 and the lens grill assembly 12 are then threaded (e.g., by way of screw-fitting into threaded holes) to further reinforce the lens grill assembly 12 and the housing assembly 15. For ease of understanding, fig. 4 shows an overall view of the display module after assembly, and fig. 5 shows a cross-sectional view of the display module after assembly.

The display module of this embodiment has carried out the fool-proof structural design respectively to the assembly between face guard subassembly 11, lens grid subassembly 12, the light shield subassembly 13, the assembly between circuit board subassembly 14, lens grid subassembly 12 and light shield subassembly 13 can directly nestedly assemble through first location portion 121 and light portion 131, utilize second location portion 122 and third location portion 141 to confirm the relative position between lens grid subassembly 12 and the circuit board subassembly 14, in addition, the assembly of face guard subassembly 11 then can make use of buckle portion to realize quick assembly, the error rate when the fool-proof structure of each subassembly can effectively reduce the assembly, reduce the holistic assemble duration of display module.

After the assembly is completed, the light blocking cover assembly 13 and the circuit board assembly 14 are compressed to the inner space, so that the light blocking cover assembly 13 and the circuit board assembly 14 are clamped between the shell assembly 15 and the lens grid assembly 12, and a closed structure is formed inside the cavity of the shell. In order to further improve the sealing performance of the whole display module, it is preferable to provide a sealing groove on the outer ring of the housing assembly 15, and to place a sealing ring 16 in the sealing groove, as shown in fig. 1.

In some examples, the housing assembly 15 is further provided with an exhaust portion for exhausting moisture generated inside the display module during operation. It should be understood that the exhaust portion may be an exhaust valve and/or an exhaust hole, and the exhaust valve may be a heating type exhaust valve, a micro type exhaust valve, a quick type exhaust valve, or a composite type exhaust valve, and the embodiment is not limited thereto.

The utility model also provides a display device, which comprises one or more display modules spliced with each other, and each display module can be independently used as the display device; alternatively, a plurality of display modules may be spliced together to form a display device.

In summary, the present invention provides a display module and a display device, wherein the assembling of the components is designed to be fool-proof, and the lens and the grid structure are integrally assembled, so that an operator can directly and correctly complete correct operation without paying attention, experience and professional knowledge, and thus, the lens assembling step in the assembling of the display module can be omitted, the assembling time can be reduced, the production cost can be saved, and the assembling efficiency can be improved; the lens grid assembly, the light blocking cover assembly, the mask assembly and the circuit board assembly can be assembled quickly by using the fool-proof structure during mutual assembly, the assembly steps of all the components of the display module are simplified, the display problem caused by poor positioning during assembly is avoided, the assembly error rate among the components is reduced, the automation degree of assembly of the display module is improved, and the reject ratio of the display module and a display device is effectively reduced. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (7)

1. A display module, comprising:

a circuit board assembly including a circuit board body; a plurality of light-emitting units are distributed on the circuit board body;

a lens grid assembly comprising a lens grid body; a plurality of lens grating units which are consistent with the light-emitting units in arrangement are distributed on the lens grating body; each lens grid unit comprises a lens and a grid structure which are integrally assembled;

a light blocking cover assembly is assembled between the lens grid assembly and the circuit board assembly; the lens grid assembly is provided with a plurality of first positioning parts which are consistent with the arrangement of the light emitting units on one surface facing the light blocking cover assembly; the light blocking cover assembly comprises a light blocking cover body and a plurality of light-passing parts which are arranged on the light blocking cover body and are consistent with the arrangement of the light-emitting units; inserting the first positioning part into the light passing part correspondingly to enable the light blocking cover assembly to be embedded into the lens grating assembly;

the display module further comprises a mask assembly; the face shield component covers the surface of the lens grid component.

2. The display module according to claim 1, wherein the lens grid assembly is further provided with a plurality of second positioning portions on a surface thereof facing the light barrier cover assembly; the circuit board assembly is correspondingly provided with a plurality of third positioning parts on one surface facing the light blocking cover assembly; the second positioning portion and the third positioning portion are respectively one and the other of a male member and a female member, and fix the relative position between the circuit board assembly and the lens grid assembly by mutually engaging the male member and the female member.

3. The display module of claim 1, wherein the outer edge of the lens grid assembly is provided with a plurality of first snap-fit portions; the inner edge of the mask component is correspondingly provided with a plurality of second buckling parts; and the lens grille assembly and the face cover assembly are clamped and assembled by mutually clamping and connecting the first clamping part and the second clamping part.

4. The display module of claim 1, wherein a face of the face shield assembly facing the lens grid assembly is provided with a securing portion for securing the face shield assembly to the lens grid assembly.

5. The display module of claim 1, wherein the edge of the lens grid assembly has a groove for inserting the housing edge into the groove when the housing assembly is fastened to the lens grid assembly; the groove comprises an anti-overflow glue groove.

6. The display module of claim 5, wherein the housing assembly is provided with an exhaust.

7. A display device, characterized in that the display device comprises: one or more mutually tiled display modules according to claims 1-6.

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