CN212011242U - Backlight module with built-in antenna and electronic equipment - Google Patents

Abstract

The utility model discloses a built-in backlight unit of antenna and electronic equipment, backlight unit wherein includes metal backplate, light emitting component, non-metal shrouding and antenna PCB, light emitting component set up in metal backplate is towards one side of display surface, the metal backplate have with light emitting component keeps staggered perforating hole, non-metal shrouding imbeds partially at least and seals the perforating hole makes backlight unit's rear surface levels, antenna PCB is located non-metal shrouding with between the display surface, antenna PCB is located the axial projection within range of perforating hole. The backlight module and the electronic equipment realize the built-in integration of the antenna PCB on the premise of ensuring the strength of wireless signals, so that the overall appearance of the product is flat, light and thin, and the product integration level is high.

Description

Backlight module with built-in antenna and electronic equipment

Technical Field

The utility model relates to a display device technical field, in particular to built-in backlight unit of antenna and electronic equipment.

Background

The metal shell is mostly adopted in large-size display screen products, and when the antenna PCB is arranged, the antenna PCB needs to be arranged at a mounting position outside the metal shell in order to avoid shielding signals. The problem that from this brings is that, the great arch of big screen product outward appearance formation influences the whole outward appearance and the whole size of product, is unfavorable for big screen product to realize the platformization, frivolousization.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a built-in backlight unit of antenna and electronic equipment has realized antenna PCB's built-in integration under the prerequisite of guaranteeing wireless signal intensity, makes the whole outward appearance of product level and thin, the product integrated level is high.

The utility model provides a built-in backlight unit of antenna, including metal backplate, light emitting component, non-metal shrouding and antenna PCB, light emitting component set up in metal backplate is towards one side of display surface, the metal backplate have with light emitting component keeps staggered perforating hole, non-metal shrouding imbeds partially at least and seals the perforating hole makes backlight unit's rear surface levels, antenna PCB is located non-metal shrouding with between backlight unit's the display surface, antenna PCB is located the axial projection within range of perforating hole.

Optionally, a rib groove is formed in a surface of one side, facing the display surface, of the metal back plate, and the rib groove is used for accommodating and arranging an electrical connection wire.

Optionally, the rib groove is provided with a wire passing hole through which a power supply connecting wire passes.

Optionally, a single-side distance between an axial projection profile of the through hole and an outer profile of the antenna PCB is not less than 10 mm.

Optionally, a single-side distance between an axial projection profile of the through hole and an outer profile of the antenna PCB is 10mm to 20 mm.

Optionally, a containing groove is formed in one side, close to the display surface, of the non-metal sealing plate, and the antenna PCB is arranged in the containing groove.

Optionally, the antenna PCB is bonded to the non-metal sealing plate.

Optionally, the non-metal sealing plate is a plastic sealing plate.

The utility model provides an electronic equipment, including above built-in backlight unit of antenna.

The embodiment of the utility model provides an in one or more technical scheme, following technological effect or advantage have at least:

offer a through hole on the metal backplate, seal this perforating hole with the embedding of non-metal shrouding, set up antenna PCB between non-metal shrouding and backlight unit's display surface, and make antenna PCB be located the axial projection within range of perforating hole, make antenna PCB's radio signal pass through behind the non-metal shrouding external transmission, do not receive shielding or decay influence, antenna PCB can embed in the metal casing of product, make backlight unit whole outward appearance very level, easily realize frivolous design effect, product integrated level is high.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic back view of a backlight module with a built-in antenna according to an embodiment of the present invention;

FIG. 2 is a first schematic view of a front surface of a metal back plate of the backlight module with the antenna built therein in FIG. 1;

FIG. 3 is a schematic view of a metal back plate of the backlight module built in the antenna of FIG. 2 at position M;

FIG. 4 is a second schematic diagram of a front surface of a metal back plate of the backlight module embedded in the antenna in FIG. 1;

fig. 5 is a schematic diagram of a metal back plate of the backlight module with the antenna built in fig. 4 at N positions.

Description of the main element symbols:

1-metal back plate, 11-through hole, 12-rib groove, 13-wire through hole, 2-light emitting element, 3-nonmetal sealing plate, 31-accommodating groove, 4-antenna PCB, 5-electric connecting wire and 6-double-sided adhesive tape.

Detailed Description

It will be understood that when an element is referred to as being "secured to" 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. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 5, the present embodiment discloses a specific structure of a backlight module with an internal antenna, which includes a metal back plate 1, a light emitting device 2, a non-metal sealing plate 3 and an antenna PCB4, so as to realize the internal integration of the antenna PCB4, and make the backlight module have a flat, light and thin appearance.

The light emitting element 2 is disposed on a side of the metal back plate 1 facing the display surface of the backlight module. The display surface is a display surface of the backlight module, namely the front surface of the display screen, and is used for a user to view images displayed by the display screen. The light emitting device 2 is used to provide a light source for the backlight module, and may be of the type of LED, min-LED, etc. Exemplarily, the light emitting elements 2 constitute a plurality of light bars. The light bar has a strip structure and is formed by sequentially distributing a plurality of light emitting elements 2 along a distribution line. Correspondingly, a plurality of light-emitting lamp strips are arranged on one side of the metal back plate 1 facing the display surface of the backlight module. Exemplarily, the light emitting elements 2 belonging to the same light bar are electrically connected. Optionally, each light bar is distributed in parallel.

The metal back plate 1 has through holes 11 penetrating through the front and rear wall surfaces of the metal back plate 1, and the through holes 11 are offset from the light emitting elements 2. In other words, the light emitting element 2 is not exposed in the through hole 11. For example, the through-hole 11 is located at a position between the plurality of light emitting elements 2; when the light emitting element 2 is implemented in the form of a light emitting bar, the through hole 11 is located between the two light emitting bars.

The non-metal sealing plate 3 is at least partially inserted into the through hole 11, for example, one end of the non-metal sealing plate 3 may be inserted into the through hole 11, or the entire non-metal sealing plate 3 may be inserted into the through hole 11. When the non-metal sealing plate 3 is inserted into the position, the through hole 11 is completely filled and sealed, and the back surface of the backlight module is kept flat. When one end of the non-metal sealing plate 3 is embedded in the through hole 11, the non-metal sealing plate 3 may have a step structure.

Exemplarily, the surface of one side of the non-metal sealing plate 3, which is far away from the display surface, is flush with the outer surface of one side of the metal back plate 1, which is far away from the display surface, so as to ensure the smooth surface of the back side of the backlight module. It should be understood that the non-metal sealing plate 3 may be inserted into the through hole 11 from the side of the metal back plate 1 facing the display surface, or may be inserted into the through hole 11 from the side of the metal back plate 1 away from the display surface. The non-metallic closure plate 3 may be made of different non-metallic materials, and the non-metallic closure plate 3 is illustratively a plastic closure plate.

The antenna PCB4 is positioned between the nonmetal seal plate 3 and the display surface of the backlight module, and the nonmetal seal plate 3 is used for realizing sealing, so that the antenna PCB4 is completely arranged in the shell of the backlight module. And the antenna PCB4 is located in the axial projection range of the through hole 11, that is, the outer contour of the antenna PCB4 is smaller than the outer contour of the non-metal sealing plate 3, so that the channel space required by the wireless signal transmission of the antenna PCB4 is ensured, the shielding or attenuation influence of the metal back plate 1 is avoided, and the signal strength meets the application requirement.

Exemplarily, the one-side distance between the axial projection contour of the through hole 11 and the outer contour of the antenna PCB4 is not less than 10 mm. Correspondingly, the single-side distance between the part of the non-metal sealing plate 3 in the through hole 11 and the antenna PCB4 is not less than 10mm, so that the channel space required by the wireless signal transmission of the antenna PCB4 is ensured, and the spatial positions in all directions are relatively even. Exemplarily, the one-side distance between the axial projection contour of the through hole 11 and the outer contour of the antenna PCB4 is 10mm to 20 mm.

Exemplarily, the non-metal sealing plate 3 is provided with a receiving groove 31 on a side facing the display surface, and the antenna PCB4 is disposed in the receiving groove 31, so as to further shorten a distance between the antenna PCB4 and an external environment and enhance signal strength. The antenna PCB4 can be fixed in different modes, exemplarily, the antenna PCB4 is bonded on the nonmetal sealing plate 3, the distance between the antenna PCB4 and the external environment is further shortened, and the signal intensity is enhanced. For example, the antenna PCB4 is attached to the surface of the receiving groove 31 of the non-metal sealing plate 3 by the double-sided adhesive tape 6.

Exemplarily, one side surface of the metal back plate 1 facing the display surface has a rib groove 12, and the rib groove 12 is used for accommodating and arranging the electrical connection wire 5. The rib groove 12 is a groove formed in the reinforcing rib. Therefore, the electric connecting wires 5 can be arranged by fully utilizing the space, extra occupied space is not needed, and the internal compactness and the integration level of the backlight module are improved. For example, when the antenna PCB4 needs to be electrically connected to other electrical components (such as a driving main board), the electrical connection line 5 between the antenna PCB4 and the electrical components is arranged along the rib groove 12. Exemplarily, the rib groove 12 is opened with a wire passing hole 13 through which the power connection wire 5 can pass, so that the power connection wire 5 can be conveniently connected and arranged through the wire passing hole 13. For example, in the case where the antenna PCB4 needs to be electrically connected to other electrical components (e.g., a control board), the electrical connection wire 5 has one end connected to the antenna PCB4 and the other end connected to the electrical components after passing through the wire passing hole 13.

The embodiment also discloses an electronic device which comprises the backlight module with the built-in antenna. The electronic device can be a display screen product, and can also be other electronic devices with a display screen (such as a smart phone, a tablet computer, a computer all-in-one machine, an electronic whiteboard, a television, an intelligent wearable device, and the like). Based on the advantages of the backlight module with the built-in antenna, the electronic device has high integration level and is easy to realize light and thin design.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims (9)

1. The backlight module with the built-in antenna is characterized by comprising a metal back plate, a light-emitting element, a non-metal sealing plate and an antenna PCB, wherein the light-emitting element is arranged on one side, facing a display surface of the backlight module, of the metal back plate, the metal back plate is provided with a through hole staggered with the light-emitting element, the non-metal sealing plate is at least partially embedded into the through hole to seal the through hole and enable the surface of the back side of the backlight module to be flat, the antenna PCB is located between the non-metal sealing plate and the display surface, and the antenna PCB is located within the axial projection range of the through hole.

2. The backlight module with a built-in antenna as claimed in claim 1, wherein a surface of the metal back plate facing the display surface has a rib groove for receiving and disposing an electrical connection wire.

3. The backlight module of claim 2, wherein the rib grooves are provided with wire holes for passing a connecting wire therethrough.

4. The backlight module with an internal antenna as claimed in claim 1, wherein a single side distance between an axial projection profile of the through hole and an outer profile of the antenna PCB is not less than 10 mm.

5. The backlight module with an internal antenna as claimed in claim 4, wherein a single side distance between an axial projection profile of the through hole and an outer profile of the antenna PCB is 10mm to 20 mm.

6. The backlight module with an internal antenna as claimed in claim 1, wherein a receiving groove is formed on a side of the non-metal sealing plate close to the display surface, and the antenna PCB is disposed in the receiving groove.

7. The backlight module with an internal antenna as claimed in claim 1, wherein the antenna PCB is bonded to the non-metal sealing plate.

8. The backlight module with built-in antenna as claimed in claim 1, wherein the non-metal sealing plate is a plastic sealing plate.

9. An electronic device, comprising the antenna-embedded backlight module according to any one of claims 1 to 8.

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