CN215648067U - COB-LED box shielding device - Google Patents

Abstract

The utility model relates to the technical field of display equipment, in particular to a COB-LED box body shielding device which comprises a shell and a main board arranged in the shell, wherein a plurality of LED chips are arranged on the end face of the main board at equal intervals, and shielding wires are filled in gaps among the LED chips. According to the utility model, the shielding wires made of the electromagnetic wave shielding material are creatively filled between the adjacent LED chips, so that the electromagnetic waves emitted from the light emitting surface of the LED display screen are greatly reduced on the premise of not influencing the display effect of the LED chips, and the external electromagnetic waves can be reduced when entering the display, thereby being beneficial to the health of a user and prolonging the service life of the display.

Description

COB-LED box shielding device

Technical Field

The utility model relates to the technical field of display equipment, in particular to a COB-LED box body shielding device.

Background

Electromagnetic waves generated in electronic, electrical and communication equipment interfere with a signal processing system in the circuit to cause malfunction and performance degradation, and various diseases are caused by damage to human health caused by excessive electromagnetic waves.

The LED liquid crystal display is formed by mutually assembling components such as a display screen, a front shell, a main board (main board), a shielding case and a rear shell in sequence, wherein the shielding case is positioned between the main board and the rear shell, and a plug wire plug of the display sequentially penetrates through the rear shell and the shielding case and is inserted into an input/output interface on the main board to realize signal transmission between the display and external equipment.

The current LED LCD mainly has two kinds of LED packaging methods, and SMD is the surface mounting packaging technique promptly, means and just adopts the welding of one LED chip to make the cell board on the mainboard, and COB is integrated the LED chip in the mainboard, compares in SMD packaging method, and COB's advantage shows in production output batchization, the demonstration interval is tiny, has good luminous and have good crashproof waterproof characteristic.

At present, electromagnetic waves generated by a display in use are mainly reduced or weakened through a shielding cover in a display shell, which is a shielding means adopted by most displays at present, but the electromagnetic waves emitted by a light emitting surface of the display have no better shielding scheme, and the display effect is considered, so that the light emitting surface cannot be shielded by the shielding scheme, but if the shielding cover is only additionally arranged at a frame, the shielding effect is greatly reduced, and the requirement of the market on a novel shielding scheme cannot be met.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above technical problems, it is an object of the present invention to provide a COB-LED box shielding apparatus capable of preventing external electromagnetic waves from entering the inside of a display and preventing internal electromagnetic waves from being emitted from the display.

The purpose of the utility model can be realized by the following technical scheme:

the utility model provides a COB-LED box shield assembly, includes the casing and installs at its inside mainboard, the terminal surface equidistance of mainboard is provided with a plurality of LED chips, and is a plurality of the gap intussuseption between the LED chip is filled with the shielding silk.

The LED lamp is characterized in that the mainboard faces the end face of the shell with the notch and is equidistantly provided with a plurality of mounting holes, a driving component is arranged in each mounting hole, and the LED chips are connected with the driving component through media.

Further, the shielding wires may be divided into a plurality of shielding horizontal wires and a plurality of shielding vertical wires according to a linear extending direction thereof, and the plurality of shielding horizontal wires and the plurality of shielding vertical wires are connected at intersections therebetween.

Further characterized in that the shielding wire is made of an electromagnetic wave shielding material.

The utility model has the beneficial effects that:

1. the shielding wires made of electromagnetic wave shielding materials are creatively filled between the adjacent LED chips, so that the electromagnetic waves emitted from the light emitting surface of the LED display screen are greatly reduced on the premise of not influencing the display effect of the LED chips, and the external electromagnetic waves can be reduced when entering the display, thereby being beneficial to the health of a user and prolonging the service life of the display.

Drawings

The utility model will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic view of the present invention mounted on a display screen;

FIG. 2 is a schematic view of the microstructure of the present invention in a localized area;

FIG. 3 is a schematic cross-sectional view of a portion of the scope of the present invention;

fig. 4 is a partial structural view of the shield wire of the present invention.

In the figure: 1. a housing; 2. a main board; 21. mounting holes; 3. a shielding wire; 31. shielding the transverse wire; 32. shielding the vertical wires; 4. and an LED chip.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Fig. 1 is a schematic view showing an application structure of a COB-LED box shielding device in an LED display, most of LED displays in the market at present are usually used as a total solution of electromagnetic wave shielding of the LED display only by installing a shielding cover inside a housing when shielding electromagnetic waves entering from the outside and radiating from the inside to the outside, but as a light emitting surface of the LED display, specifications of electromagnetic wave entering and radiating are not as small as possible, and there is no corresponding means for shielding at present, which has a certain disadvantage for stability of the LED display and physical health of a user, based on analysis and understanding of the above problems, a skilled in the art proposes a mosaic shielding device as a further solution in the field of electromagnetic wave shielding of the current LED display, and the present invention can be understood as laying a shielding net consisting of a shielding horizontal filament 31 and a shielding vertical filament 32 on an end surface of a main board 2, the LED chips 4 are arranged in the space between the adjacent shielding transverse wires 31 and the shielding vertical wires 32, so that the absorption and reduction of electromagnetic waves transmitted from the outside and emitted from the inside are realized under the condition of no shielding of the display effect of the LED chips 4, the problem of poor electromagnetic wave shielding effect at present is solved at one stroke, and the method has guiding significance for promoting the development of the field of electromagnetic wave shielding.

As shown in fig. 1, a COB-LED box shielding device includes a housing 1 and a main board 2 installed inside the housing 1, in this embodiment, the housing 1 and the main board 2 inside the housing can be used as a single display screen, or a plurality of housings 1 can be spliced to form a large display screen, a plurality of LED chips 4 are equidistantly disposed on an end surface of the main board 2, and shielding wires 3 are filled in gaps between the plurality of LED chips 4, as shown in fig. 4, the shielding wires 3 can be divided into shielding transverse wires 31 and shielding vertical wires 32 according to a linear extending direction thereof, the plurality of shielding transverse wires 31 and the plurality of shielding vertical wires 32 are connected at intersections, in the present invention, by creatively filling shielding wires 3 made of electromagnetic wave shielding material between adjacent LED chips 4, electromagnetic waves emitted from a light emitting surface of the LED display screen are greatly reduced on the premise of not affecting a display effect of the LED chips 4, also can cut down when outside electromagnetic wave gets into the display inside, not only be favorable to user's healthy, also can increase the life of display, in this embodiment, shielding filament 3 is divided into shielding horizontal filament 31 and shielding vertical filament 32 according to its linear extending direction, LED chip 4's arrangement is different or the configuration is different on mainboard 2, certain change also can take place for the structure of shielding filament 3, shielding filament 3 should be on the basis of laminating LED chip 4 as far as possible, accomplish not influencing LED chip 4's display effect, realize best electromagnetic wave shielding ability.

As shown in fig. 2 and 3, the end surface of the main board 2 facing the housing 1 with the notch is equidistantly provided with a plurality of mounting holes 21, the mounting holes 21 are internally provided with driving components, and the LED chips 4 are connected with the driving components through media, so that the COB packaging mode can improve the protection grade of the LED display and reduce glare, but it should be understood that the device can also be applied to displays adopting SMDs or other packaging modes, the electromagnetic shielding effect of the device depends on selection of shielding materials and running-in of production and assembly processes, and the distance between adjacent LED chips 4 is smaller, usually within 0.3mm-0.8mm, so that the processing requirement on the shielding wire 3 is higher.

The shielding wire 3 is made of electromagnetic wave shielding material, and the currently available electromagnetic wave shielding material includes conductive elastomer lining, EMI conductive foam lining, metal EMI lining, etc., and the metal EM I lining is such as steel wire, iron wire, copper wire, aluminum wire, iron aluminum alloy wire, and in the experiment, researchers found that the "penetration depth" of electromagnetic wave around 1 mhz in the metal EMI lining is about several hundredths of millimeter, so the metal can basically shield the electromagnetic wave of I mhz as long as the thickness of the metal is as thick as a piece of paper, especially iron, and the shielding effect is particularly good because of its high magnetic permeability.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the utility model to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the utility model as defined in the following claims.

Claims (4)

1. The utility model provides a COB-LED box shield assembly, includes casing (1) and installs mainboard (2) inside it, its characterized in that, the terminal surface equidistance of mainboard (2) is provided with a plurality of LED chips (4), and is a plurality of the gap intussuseption between LED chip (4) is filled with shielding silk (3).

2. The COB-LED box shielding device according to claim 1, wherein a plurality of mounting holes (21) are equidistantly formed in one end face of the main board (2) facing the shell (1) with the notch, driving components are arranged in the mounting holes (21), and the LED chip (4) is connected with the driving components through a medium.

3. COB-LED cabinet shielding device according to claim 1, characterized in that said shielding wire (3) is divided into a shielding transverse wire (31) and a shielding vertical wire (32) according to its linear extension direction, a plurality of said shielding transverse wires (31) and a plurality of said shielding vertical wires (32) being connected at the crossing.

4. COB-LED box shielding device according to claim 1 or 3, characterized in that said shielding wire (3) is made of electromagnetic wave shielding material.

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