CN219534005U

CN219534005U - Display module and display screen

Info

Publication number: CN219534005U
Application number: CN202320460493.1U
Authority: CN
Inventors: 龙平芳; 毛强军; 刘军
Original assignee: Shenzhen Lianchengfa Technology Co ltd
Current assignee: Shenzhen Lianchengfa Technology Co ltd
Priority date: 2023-02-28
Filing date: 2023-02-28
Publication date: 2023-08-15
Anticipated expiration: 2033-02-28

Abstract

The utility model discloses a display module and a display screen, and relates to the technical field of display screens. The utility model provides a display module assembly, its characterized in that, includes the drain pan, and be in the PCB board that drain pan one side set up, array mounting has a plurality of LED lamp pearls on the PCB board, the drain pan orientation the outer lane of one side of PCB board is provided with the bead of end-to-end connection, the PCB board deviate from one side of lamp pearl with the bead supports to hold, so that the outer lane of bead forms the recess, the recess with be provided with nano glue on the PCB board, in order will the drain pan the PCB board with LED lamp pearl encapsulates into an organic wholely. The glue joint of the PCB and the bottom shell can be prevented from cracking and leaking after the display module is used for a long time.

Description

Display module and display screen

Technical Field

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

Background

LDE display screens are widely applied to life, the basic unit of the LDE display screen is a display module, and the LDE display screen is formed by splicing display modules. Typically, a single display module is composed of a bottom case, a PCB board and LED beads.

For the LED display screen, the waterproof problem is the most important, and current display module is that install the LED lamp pearl in one side of PCB board to glue water proof treatment is irritated on LED lamp pearl surface, and the opposite side and the drain pan veneer of PCB board constitute the display module, but after the display module is used for a long time, because of PCB or drain pan deformation to and sun, the glue joint fracture that the expend with heat and cold that the repetition rose and cooled leads to leaks.

Disclosure of Invention

The utility model aims to provide a display module and a display screen, which can prevent the glued joint of a PCB and a bottom shell from cracking and leaking after the display module is used for a long time.

Embodiments of the present utility model are implemented as follows:

the embodiment of the utility model provides a display module, which comprises a bottom shell and a PCB (printed circuit board) arranged on one side of the bottom shell, wherein a plurality of LED (light-emitting diode) lamp beads are arranged on the PCB in an array manner, a convex rib connected end to end is arranged on the outer ring of one side of the bottom shell, which faces towards the PCB, one side of the PCB, which faces away from the LED lamp beads, is propped against the convex rib, so that grooves are formed on the outer ring of the convex rib, and nanometer glue is arranged on the grooves and the PCB to package the bottom shell, the PCB and the LED lamp beads into a whole.

Optionally, the display module assembly further includes a case, the bottom shell with a sidewall of the case is connected, and a waterproof ring is disposed between the bottom shell and a sidewall of the case.

Optionally, a waterproof groove is arranged on one side of the bottom shell facing the box body, and the waterproof ring is positioned at the waterproof groove.

Optionally, a positioning column is arranged in the waterproof groove, and a through hole is arranged in the waterproof ring corresponding to the positioning column.

Optionally, a hollowed-out area is arranged on the bottom shell, and the hollowed-out area is positioned at the inner ring of the waterproof groove.

Optionally, the bottom shell is made of plastic, steel or aluminum alloy.

Optionally, the outer shape of the bottom shell is rectangular.

Optionally, the waterproof ring is made of silica gel.

Optionally, the nano glue is an optical heat conduction transparent nano filling material

In another aspect of the embodiments of the present utility model, a display screen is provided, including the foregoing display module.

The beneficial effects of the embodiment of the utility model include:

according to the display module and the display screen provided by the embodiment of the utility model, the convex ribs which are connected end to end are arranged on the outer ring of the side, facing the PCB, of the bottom shell, and the side, facing away from the lamp beads, of the PCB is abutted against the convex ribs, so that grooves are formed on the outer ring of the convex ribs, and nano glue is arranged on the grooves and the PCB, so that the bottom shell, the PCB and the LED lamp beads are packaged into a whole, the joint of the bottom shell and the PCB is sealed, and cracking and water leakage of the glued joint of the PCB and the bottom shell can be prevented after the service time of the display module is long.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

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

FIG. 2 is a schematic diagram of a bottom chassis according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a bottom chassis with a partially enlarged structure according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of a bottom chassis according to an embodiment of the present utility model;

fig. 5 is a schematic structural view of a waterproof ring according to an embodiment of the present utility model.

Icon: 10-bottom shell; 11-ribs; 12-grooves; 13-a waterproof groove; 131-positioning columns; 14-waterproof rings; 141-a through hole; 20-a PCB board; 30-LED lamp beads.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, the azimuth or positional relationship indicated by the terms "inner", "outer", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship that is commonly put in use of the product of this application, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The existing display module is characterized in that LED lamp beads are arranged on one side of a PCB, glue is filled on the surface of the LED lamp beads for waterproof treatment, the other side of the PCB is glued with a bottom shell to form the display module, but after the display module is used for a long time, the glued part is cracked and leaked due to deformation of the PCB or the bottom shell, and thermal expansion and contraction of sunlight and repeated temperature rise and fall. In order to solve the above problems, the embodiments of the present utility model provide the following technical solutions to overcome the above problems.

Referring to fig. 1 to 4, an embodiment of the present utility model provides a display module, including a bottom case 10, and a PCB 20 disposed on one side of the bottom case 10, a plurality of LED lamp beads 30 are disposed on the PCB 20 in an array, a protruding rib 11 connected end to end is disposed on an outer ring of one side of the bottom case 10 facing the PCB 20, one side of the PCB 20 facing away from the LED lamp beads 30 abuts against the protruding rib 11, so that a groove 12 is formed on an outer ring of the protruding rib 11, and nano glue is disposed on the groove 12 and the PCB 20 to encapsulate the bottom case 10, the PCB 20 and the LED lamp beads 30 into an integral body.

Specifically, the plurality of LED lamp beads 30 are arranged on the PCB 20 in an array, one side of the PCB 20 away from the LED lamp beads 30 abuts against the convex edge 11, so that a groove 12 is defined among the outer ring of the convex edge 11, the PCB 20 and the bottom shell 10, nano glue is filled in the groove 12, and the nano glue is poured on the PCB 20 by combining a plate glue pouring process, so that the bottom shell 10, the PCB 20 and the LED lamp beads 30 are packaged into a whole. It should be noted that, when the nano glue is filled in the groove 12 and the nano glue is poured on the PCB 20, the phenomena of bubbles, air holes, flooding points on the glue bonding surface, voids, underfill, etc. cannot occur.

According to the display module provided by the embodiment of the utility model, the convex edges 11 which are connected end to end are arranged on the bottom shell 10, so that the grooves 12 are formed by surrounding the convex edges 11, the outer ring of the convex edges 11, the PCB 20 and the bottom shell 10, the grooves 12 and the PCB 20 are provided with the nano glue, the bottom shell 10, the PCB 20 and the LED lamp beads 30 are packaged into a whole, the joint of the bottom shell 10 and the PCB 20 is ensured to be sealed, and the glued joint of the PCB 20 and the bottom shell 10 can be prevented from cracking and leaking after the display module is used for a long time.

Referring to fig. 1 and 5, in the embodiment of the utility model, the display module further includes a case, the bottom case 10 is connected to a sidewall of the case, and a waterproof ring 14 is disposed between the bottom case 10 and the sidewall of the case.

Further, the PCB board 20, the LED lamp beads 30 and the bottom case 10, which are integrally packaged, are mounted to the case, one side of the bottom case 10 facing away from the PCB board 20 is tightly connected with a sidewall of the case, and a waterproof ring 14 is provided between the case and the bottom case 10, and when the bottom case 10 is mounted to the case, the case and the bottom case 10 are tightly connected and the waterproof ring 14 is pressed to eliminate a gap between the bottom case 10 and the case.

According to the display module provided by the embodiment of the utility model, the waterproof ring 14 is arranged between the box body and the bottom shell 10, and the waterproof ring 14 is extruded in installation, so that the tightness between the bottom shell 10 and the box body is ensured through the waterproof ring 14, and the waterproof between the box body and the bottom shell 10 is realized.

Referring to fig. 4, in the embodiment of the utility model, a waterproof groove 13 is disposed on a side of the bottom case 10 facing the case, and a waterproof ring 14 is disposed at the waterproof groove 13.

Specifically, waterproof groove 13 end to end sets up in the drain pan 10 towards one side of box, and waterproof circle 14 is placed in waterproof groove 13 to make waterproof circle 14 fix in waterproof groove 13, made things convenient for waterproof circle 14's installation, improved the production efficiency of display module assembly.

Referring to fig. 4 and 5, in the embodiment of the utility model, a positioning post 131 is disposed in the waterproof slot 13, and a through hole 141 is disposed in the waterproof ring 14 corresponding to the positioning post 131.

Specifically, through hole 141 on waterproof circle 14 corresponds the setting with the reference column 131 in the waterproof groove 13, when placing waterproof circle 14 at waterproof groove 13, passes reference column 131 from through hole 141 at first to make waterproof circle 14 location, and make waterproof circle 14 be difficult for dropping from waterproof groove 13, made things convenient for the equipment of display module assembly, improved display module assembly's production efficiency.

In this embodiment, the number of the positioning posts 131 and the through holes 141 is not specifically limited, and the positioning effect is only required.

Referring to fig. 4, in the embodiment of the utility model, a hollowed-out area is disposed on the bottom shell 10, and the hollowed-out area is located at an inner ring of the waterproof tank 13.

Specifically, the hollowed-out area is arranged on the bottom shell 10, so that the overall quality of the display module is reduced, the material for manufacturing the bottom shell 10 is saved, and the production cost of the display module is reduced. It should be noted that, the hollowed-out area needs to be disposed in the inner ring of the waterproof groove 13, and cannot exceed the waterproof groove 13, so as to ensure the waterproof effect between the bottom shell 10 and the box.

In the embodiment of the present utility model, the bottom shell 10 is made of plastic, steel or aluminum alloy.

Specifically, when the bottom shell 10 is made of plastic, the overall quality of the product is reduced, and the product is convenient to transport and move, and it is required to be noted that the bottom shell 10 made of plastic also needs to meet certain strength. When the bottom shell 10 is made of steel or aluminum alloy, the structural strength of the product is ensured, so that the product is not easy to damage under the action of external force. It can be appreciated that the material of the bottom shell 10 can be selected according to practical requirements.

In the embodiment of the present utility model, the outer shape of the bottom chassis 10 is rectangular.

Specifically, the viewing angle range of the human eye is larger in the lateral direction than in the vertical direction, that is, approximately 16:9, the bottom shell 10 is rectangular in shape, accords with human engineering, and enhances the experience of a user.

In the embodiment of the present utility model, the waterproof ring 14 is made of silica gel.

It should be noted that, the silica gel has advantages of heat resistance, low temperature elasticity, and particularly excellent oxidation resistance, and the selection of the silica gel as the material of the waterproof ring 14 can prolong the waterproof time of the waterproof ring 14 and further prolong the service life of the display module.

In an embodiment of the utility model, the nano-glue is an optically conductive transparent nano-filler material.

The optical heat-conducting transparent nano filling material has the advantages of moisture resistance, water resistance, dust resistance, collision resistance, static resistance, oxidation resistance, good heat dissipation, blue light radiation resistance, ultraviolet resistance and the like. Because of the matte effect, the point light source is converted into the surface light source, the light emission of the product is more uniform, the visual angle (the horizontal visual angle and the vertical visual angle can reach approximately 180 degrees) of the product is greatly improved, and the moire is effectively eliminated. And the product contrast is improved due to the matte effect, the glare and the thorn sense are reduced, the visual fatigue is lightened, and the safety and the health of a user are effectively protected.

The embodiment of the utility model also discloses a display screen, which comprises the display module in the embodiment. The display screen has the same structure and beneficial effects as the display module in the previous embodiment. The structure and the beneficial effects of the display module have been described in detail in the foregoing embodiments, and are not described herein again.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a display module assembly, its characterized in that, includes the drain pan, and be in the PCB board that drain pan one side set up, array mounting has a plurality of LED lamp pearls on the PCB board, the drain pan orientation the outer lane of one side of PCB board is provided with the bead of end-to-end connection, the PCB board deviate from one side of LED lamp pearl with the bead supports to hold, so that the outer lane of bead forms the recess, the recess with be provided with nano glue on the PCB board, in order to with the drain pan the PCB board with LED lamp pearl encapsulation becomes an organic wholely.

2. The display module assembly of claim 1, further comprising a case, wherein the bottom case is connected to a sidewall of the case, and a waterproof ring is disposed between the bottom case and the sidewall.

3. The display module assembly of claim 2, wherein a side of the bottom case facing the case body is provided with a waterproof groove, and the waterproof ring is positioned at the waterproof groove.

4. A display module according to claim 3, wherein a positioning column is provided in the waterproof tank, and the waterproof ring is provided with a through hole corresponding to the positioning column.

5. The display module assembly of claim 3 or 4, wherein the bottom shell is provided with a hollowed-out area, and the hollowed-out area is located at an inner ring of the waterproof groove.

6. The display module of claim 5, wherein the bottom shell is made of plastic, steel or aluminum alloy.

7. The display module assembly of claim 6, wherein the bottom case has a rectangular shape.

8. The display module assembly of claim 5, wherein the waterproof ring is made of silica gel.

9. The display module of claim 8, wherein the nano-glue is an optically conductive transparent nano-filler material.

10. A display screen comprising a display module according to any one of claims 1-9.