CN220627839U - Waterproof LED display module assembly and display screen - Google Patents
Waterproof LED display module assembly and display screen Download PDFInfo
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- CN220627839U CN220627839U CN202322117597.5U CN202322117597U CN220627839U CN 220627839 U CN220627839 U CN 220627839U CN 202322117597 U CN202322117597 U CN 202322117597U CN 220627839 U CN220627839 U CN 220627839U
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- 239000000758 substrate Substances 0.000 claims abstract description 85
- 239000000463 material Substances 0.000 claims abstract description 54
- 238000004806 packaging method and process Methods 0.000 claims abstract description 9
- 238000005538 encapsulation Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 238000000576 coating method Methods 0.000 abstract description 6
- 239000011248 coating agent Substances 0.000 abstract description 5
- 238000011049 filling Methods 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 239000005060 rubber Substances 0.000 description 5
- 239000003292 glue Substances 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002086 nanomaterial Substances 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
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Abstract
The utility model discloses a waterproof LED display module and a display screen, wherein the waterproof LED display module comprises a substrate and a waterproof shell, the substrate is provided with a first side face and a second side face which are opposite along a first direction, the first side face of the substrate is provided with an LED chip and a packaging layer, one side, close to the substrate, of the waterproof shell is provided with a protruding structure so as to form a first cavity with the substrate, and a second waterproof material is filled in the first cavity. According to the utility model, the first side surface of the substrate and the LED chip are effectively waterproof through the packaging layer, the second side surface of the substrate is effectively waterproof through the waterproof shell, water vapor cannot enter the substrate from the two side surfaces in the second direction and the third direction of the substrate through coating the first waterproof material, good waterproof performance is achieved, the first waterproof material can reach the thickness of a micron level, the LED display module can be spliced seamlessly, no dark line exists visually, and good display effect is ensured.
Description
Technical Field
The utility model relates to the technical field of LED display screens, in particular to a waterproof LED display module and a display screen.
Background
With the progress of the semiconductor manufacturing process, the combination of the micro-nano manufacturing technology and the LED technology brings new possibility, the pixel spacing of the display screen manufactured by the micro-light emitting diode breaks through a new step on the basis of the original display screen, the image quality is finer, the LED display screen supports seamless splicing, the splicing size can be customized according to the requirements of customers to manufacture the large LED screen, and the high-end indoor and outdoor display scenes are met.
As shown in FIG. 1, the existing LED display module is waterproof by opening the plastic mold and putting the LED display module into the plastic mold and filling the glue, and the waterproof mode has a fence on the side surface of the LED display module, so that the LED display screen with small micro-spacing can lead to black edges after the LED display module is spliced, and the display effect is affected.
Disclosure of Invention
The utility model mainly aims to provide a waterproof LED display module and a display screen, and aims to solve the problem of poor display effect caused by the existing waterproof mode.
In order to achieve the above object, the present utility model provides a waterproof LED display module, comprising:
the LED packaging structure comprises a substrate, a first fixing structure and a second fixing structure, wherein the substrate is provided with a first side face and a second side face which are opposite along a first direction, the first side face of the substrate is provided with an LED chip and a packaging layer which covers the LED chip; the method comprises the steps of,
the waterproof shell is arranged on the second side face of the substrate, a second fixing structure matched with the first fixing structure is arranged on the waterproof shell, and the two side faces of the substrate opposite to each other along the second direction and the two side faces of the substrate opposite to each other along the third direction are coated with a first waterproof material;
wherein, the outer edge of the encapsulation layer and the waterproof shell does not exceed the outer edge of the substrate.
Optionally, a protruding structure is arranged on one side of the waterproof shell, which is close to the substrate, and a first cavity which is open outwards is formed by the protruding structure and the edge of the substrate, and a second waterproof material is filled in the first cavity.
Optionally, the second waterproof material is a liquid waterproof material; or alternatively, the first and second heat exchangers may be,
the second waterproof material is a semi-curing waterproof material.
Optionally, the first fixing structure includes a nut post disposed on the second side of the substrate;
the second fixing structure comprises a through hole penetrating through the waterproof shell and a screw which is arranged in the through hole and matched with the nut post, the through hole is used for the nut post to extend in, and the base plate and the waterproof shell are fixed through the screw and the nut post.
Optionally, a waterproof gasket for sealing the through hole is arranged between the screw and the waterproof shell.
Optionally, the protruding structure and the substrate are further formed with a second cavity close to the middle of the substrate and airtight, the second side surface of the substrate is provided with an electronic element and a driving circuit located in the second cavity, and the electronic element and the driving circuit are electrically connected with the LED chip.
Optionally, the substrate is a planar multilayer circuit board, and the LED chip is connected with the electronic element and the driving circuit through a circuit of the planar multilayer circuit board.
In addition, the utility model also provides a display screen, which comprises the waterproof LED display module.
According to the LED display module, the first side surface of the substrate and the LED chip obtain an effective waterproof effect through the packaging layer, the second side surface of the substrate reaches the effective waterproof effect through the waterproof shell, water vapor cannot enter the substrate from the two side surfaces in the second direction and the third direction of the substrate through coating the first waterproof material, good waterproof performance is achieved, the first waterproof material can reach the micrometer-level thickness, the LED display module can be spliced seamlessly, no dark line exists in vision, and good display effect is guaranteed;
the display screen is formed by splicing the LED display modules, and has strong waterproof capability and good display effect.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a waterproof structure of a conventional LED display module;
FIG. 2 is a schematic diagram of a portion of an LED display module according to the present utility model;
FIG. 3 is a partial schematic view of a base plate and waterproof housing of the present utility model;
FIG. 4 is a schematic view showing the base plate and waterproof case of the present utility model disassembled;
FIG. 5 is a schematic view of a portion of a substrate according to the present utility model;
fig. 6 is a schematic diagram of the LED display module assembly according to the present utility model.
Reference numerals illustrate:
101. a substrate; 102. an LED chip; 103. an encapsulation layer; 104. a nut post; 105. a waterproof case; 106. a waterproof gasket; 107. a screw; 108. a second waterproof material; 109. a first waterproof material; 110. a bump structure; 111. a first cavity; 112. a second cavity; 201. and (5) enclosing.
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all 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, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if the meaning of "and/or" is presented throughout this document, it is intended to include three schemes in parallel, taking "a and/or B" as an example, including a scheme, or B scheme, or a scheme where a and B meet simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
At present, as shown in fig. 1, the existing LED display module is waterproof by opening the plastic mold and putting the LED display module into the plastic mold and filling the glue, and the enclosure 201 is arranged on the side surface of the LED display module in the waterproof manner, so that the LED display module is spliced by the small-micro-space LED display screen to leave black edges, and the display effect is affected.
In order to solve the above problems, the present utility model provides a waterproof LED display module and a display screen, and fig. 2 to 6 are specific embodiments of the waterproof LED display module and the display screen provided by the present utility model.
Referring to fig. 2 to 6, the waterproof LED display module includes a substrate 101 and a waterproof housing 105, the substrate 101 has a first side and a second side opposite to each other along a first direction, the first side of the substrate 101 is provided with an LED chip 102 and an encapsulation layer 103 covering the LED chip 102, the second side of the substrate 101 is provided with a first fixing structure, the waterproof housing 105 is provided on the second side of the substrate 101, a second fixing structure matched with the first fixing structure is provided on the waterproof housing 105, both sides of the substrate 101 opposite to each other along the second direction and both sides of the substrate 101 opposite to each other along a third direction are coated with a first waterproof material 109, wherein the outer edges of the encapsulation layer 103 and the waterproof housing 105 do not exceed the outer edges of the substrate 101.
Specifically, the waterproof housing 105 needs to have a certain structural strength, and the waterproof housing 105 may be made of a formable material such as a metal material, a resin material, a plastic material, a silica gel material, or a rubber material.
It should be noted that, the first direction, the second direction and the third direction in the present utility model are not limited herein, the specific arrangement may be selected according to actual needs, for convenience of description below, the first direction is defined as an up-down direction, the second direction is defined as a left-right direction, the third direction is a front-back direction, the first side and the second side of the substrate 101 are respectively an upper side and a lower side, and since the LED display screen is generally a square structure, the corresponding substrate 101 is also a square structure, two sides of the substrate 101 opposite along the second direction and two sides of the substrate 101 opposite along the third direction are both coated with the first waterproof material 109, that is, four sides of the substrate 101 in the horizontal direction are both provided with the first waterproof material 109.
The outer edges of the encapsulation layer 103 and the waterproof housing 105 in the horizontal direction do not extend out of the outer edge of the substrate 101, when the LED display module is spliced, it is ensured that no interference occurs between the encapsulation layer 103 and between the waterproof housings 105, optionally, the outer edges of the encapsulation layer 103 and the waterproof housing 105 in the horizontal direction are flush with the outer edge of the substrate 101, and at this time, when the first waterproof material is coated, the first waterproof material 109 may be coated onto a part of the encapsulation layer 103 and may be coated onto a part of the waterproof housing 105 downward, so as to prevent water vapor from entering from the gap between the substrate 101 and the encapsulation layer 103 and the gap between the substrate 101 and the waterproof housing, and further ensure tightness.
According to the utility model, the upper side surface of the substrate 101 and the LED chip 102 are effectively waterproof through the packaging layer 103, the lower side surface of the substrate 101 is effectively waterproof through the waterproof shell 105, the first waterproof material 109 is coated on the four side surfaces of the substrate 101 in the horizontal direction, the first waterproof material 109 is formed into an ultrathin waterproof layer on the side surface of the substrate 101 to protect, so that water vapor cannot enter a circuit in the substrate 101 through the side surface of the substrate 101, good waterproof performance is achieved, comprehensive protection of the substrate 101 and the LED chip 102 is achieved, compared with a waterproof mode of the traditional LED display module, a surrounding block 201 does not exist on the side surface of the substrate 101 in the mode of coating the first waterproof material 109, the first waterproof material 109 can reach the micron-sized thickness, the LED display module is spliced seamlessly, no dark line is visually formed, and good display effect is ensured.
The configuration of the first waterproof material 109 and the method of coating the same on the substrate 101 are not limited, the first waterproof material 109 may be a resin, a silicone, a rubber, a nanomaterial, etc., the coating method may be printing, spraying, coating, pressing, filling, etc., and the thickness of the first waterproof material 109 is not limited, so long as the waterproof of the four sides of the substrate 101 in the horizontal direction can be achieved after the first waterproof material 109 is coated, alternatively, when the waterproof LED module is applied to a small micro-pitch display screen, the first waterproof material 109 may be a nanomaterial or other waterproof material with a very thin thickness, so that the waterproof LED module has no black edge after being spliced, and has good display effect.
Referring to fig. 2 and 3, a protruding structure 110 is disposed on a side of the waterproof housing 105 near the substrate 101, the protruding structure 110 and the edge of the substrate 101 form a first cavity 111 that is open outwards, and a second waterproof material 108 is filled in the first cavity 111, where it should be noted that, without limiting the configuration of the second waterproof material 108 and a method of filling the second waterproof material into the first cavity 111, the second waterproof material 108 may be a liquid waterproof material, for example, waterproof glue, etc., the second waterproof material 108 may also be a semi-cured waterproof material, for example, semi-cured resin material, etc., in addition, the second waterproof material 108 may also be silica gel, rubber, nano material, etc., and a filling method thereof may be printing, spraying, laminating, pressing, filling, etc., optionally, the second waterproof material 108 is waterproof glue, so that, on one hand, the substrate 101 and the waterproof housing 105 may be tightly adhered at a position near the edge, and on the other hand, water may be prevented from entering into the driving circuit from the substrate 101 and the waterproof housing 105 or the driving circuit may be damaged.
The waterproof effect can be achieved by mainly adopting mechanical pressure to enable the waterproof rubber ring to deform between the substrate and the waterproof shell of the existing LED display module, but the LED display module can generate local stress deformation, on one hand, the stress leads to poor flatness, the LED display module is tile-shaped after being spliced, the display effect is seriously affected, on the other hand, the stress is not released, finally, the LED display module is acted on the LED chip, the long-time stress influence can lead to welding fatigue, finally, welding cracks can appear, and the LED chip is invalid in a large area.
The protrusion structure 110 may have a certain structural strength and a contact area with the substrate 101 as large as possible to provide a supporting effect on the substrate 101, and the protrusion structure 110 may be made of a metal material, a resin material, a plastic material, a silica gel material, a rubber material, or the like, and optionally, the protrusion structure 110 and the waterproof housing 105 are integrally formed.
Referring to fig. 2 to 5, the first fixing structure includes a nut post 104 disposed on the second side of the substrate 101, the second fixing structure includes a through hole disposed on the waterproof housing 105 and a screw 107 disposed in the through hole and engaged with the nut post 104, the through hole is configured to allow the nut post 104 to extend into the through hole, the substrate 101 and the waterproof housing 105 are fixed by the screw 107 and the nut post 104, wherein the nut post 104 is welded on the substrate 101, the nut post 104 is provided with a threaded hole adapted to the screw 107, and the shape of the through hole corresponds to the nut post 104, when the nut post 104 extends into the through hole, the waterproof housing 105 can be limited in a horizontal direction by the nut post 104, after the screw 107 is installed, the screw 107 fixes the waterproof housing 105 in an up-down direction, and the number of the nut post 104, the through hole and the screw 107 can be determined according to an actual area of a display panel, which is not limited.
Further, after the waterproof housing 105 is mounted by the screw 107 and the nut post 104, due to processing reasons, a gap is easily formed between the screw 107 and the waterproof housing 105, so that water easily enters from the gap and flows to the substrate 101 through the through hole, and waterproof effect is affected.
Referring to fig. 2 and 3, the protruding structure 110 and the substrate 101 are further formed with a second airtight cavity 112 near the middle of the substrate 101, the second side of the substrate 101 is provided with an electronic component and a driving circuit located in the second cavity 112, and the electronic component and the driving circuit are electrically connected with the LED chip 102, where the first cavity 111 is used for avoiding the electronic component and the driving circuit, so as to avoid the electronic component and the driving circuit from being crushed by the waterproof casing 105 when the waterproof casing 105 is installed.
Referring to fig. 2, the substrate 101 is a planar multilayer circuit board, the LED chip 102 is connected with the electronic component and the driving circuit through the circuit of the planar multilayer circuit board, the circuit of the planar multilayer circuit board is located inside the planar multilayer circuit board and is not easy to contact with water, the packaging layer 103 and the waterproof housing 105 are respectively disposed on the upper side and the lower side of the planar multilayer circuit board, and the four sides in the horizontal direction of the planar multilayer circuit board are coated with the first waterproof material 109, so that the circuit of the planar multilayer circuit board is further ensured not to contact with water.
The thickness of the encapsulation layer 103 is not limited here, as long as the encapsulation layer 103 can cover the LED chip 102 and can realize waterproof protection of the LED chip 102, and the thickness of the encapsulation layer 103 is optionally 200 μm.
The utility model also provides a display screen, which comprises the waterproof LED display module, and the specific structure of the waterproof LED display module refers to the embodiment, and because the display screen comprises all the schemes of all the embodiments of the waterproof LED display module, the display screen at least has the same technical effects as the waterproof LED display module, and the technical effects are not described one by one.
The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.
Claims (8)
1. The utility model provides a waterproof LED display module assembly which characterized in that includes:
the LED packaging structure comprises a substrate, a first fixing structure and a second fixing structure, wherein the substrate is provided with a first side face and a second side face which are opposite along a first direction, the first side face of the substrate is provided with an LED chip and a packaging layer which covers the LED chip; the method comprises the steps of,
the waterproof shell is arranged on the second side face of the substrate, a second fixing structure matched with the first fixing structure is arranged on the waterproof shell, and the two side faces of the substrate opposite to each other along the second direction and the two side faces of the substrate opposite to each other along the third direction are coated with a first waterproof material;
wherein, the outer edge of the encapsulation layer and the waterproof shell does not exceed the outer edge of the substrate.
2. The waterproof LED display module of claim 1, wherein a protruding structure is arranged on one side of the waterproof housing close to the substrate, the protruding structure and the edge of the substrate form a first cavity opening outwards, and the first cavity is filled with a second waterproof material.
3. The waterproof LED display module of claim 2, wherein the second waterproof material is a liquid-based waterproof material; or alternatively, the first and second heat exchangers may be,
the second waterproof material is a semi-curing waterproof material.
4. The waterproof LED display module of claim 1, wherein said first securing structure comprises a nut post disposed on said second side of said substrate;
the second fixing structure comprises a through hole penetrating through the waterproof shell and a screw which is arranged in the through hole and matched with the nut post, the through hole is used for the nut post to extend in, and the base plate and the waterproof shell are fixed through the screw and the nut post.
5. The waterproof LED display module of claim 4, wherein a waterproof gasket sealing said through hole is provided between said screw and said waterproof housing.
6. The waterproof LED display module of claim 2, wherein said bump structure and said substrate further form a second cavity closed near the middle of the substrate, and said second side of the substrate is provided with an electronic component and a driving circuit located in said second cavity, said electronic component and said driving circuit being electrically connected to said LED chip.
7. The waterproof LED display module of claim 6, wherein said substrate is a planar multilayer circuit board, and said LED chip is connected to said electronic component and said driving circuit via lines of said planar multilayer circuit board.
8. A display screen comprising a waterproof LED display module according to any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322117597.5U CN220627839U (en) | 2023-08-04 | 2023-08-04 | Waterproof LED display module assembly and display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322117597.5U CN220627839U (en) | 2023-08-04 | 2023-08-04 | Waterproof LED display module assembly and display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220627839U true CN220627839U (en) | 2024-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322117597.5U Active CN220627839U (en) | 2023-08-04 | 2023-08-04 | Waterproof LED display module assembly and display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220627839U (en) |
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2023
- 2023-08-04 CN CN202322117597.5U patent/CN220627839U/en active Active
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