LED display module and LED display device

Abstract

The utility model provides an LED display module and an LED display device.The LED display module comprises an LED lamp panel which comprises a substrate and a plurality of LED lamp beads arranged on the front side of the substrate, and the LED lamp beads are arranged at intervals; the waterproof glue layer is arranged on the front side of the substrate and located between the multiple LED lamp beads, the waterproof glue layer comprises a base body part and a climbing part, and the climbing part is located on the front side of the base body part and connected with the side walls of the LED lamp beads; the mask is arranged on the front side of the LED lamp panel, a plurality of light transmitting holes are formed in the mask, the light transmitting holes and the LED lamp beads are arranged in a one-to-one correspondence mode, each light transmitting hole comprises a first hole section and a second hole section which are arranged in a communicating mode, the first hole sections are located on the rear sides of the second hole sections, and the LED lamp beads can stretch into the second hole sections; and the cross section area of the first hole section is larger than that of the second hole section so as to avoid the climbing part. According to the technical scheme, the problem that in the prior art, a mask is not easy to install can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of LED display, and in particular to an LED display module and an LED display device. Background Art

[0002] With the continuous development of technology, various LED display devices appear in people's daily life to meet different viewing needs. Among them, an LED display device usually consists of a plurality of LED boxes and an LED display module arranged on the front side of the LED box. The LED display module usually includes a bottom shell, an LED light board arranged on the front side of the bottom shell, and a mask arranged on the front side of the LED light board. The LED light board includes a substrate and lamp beads arranged on the front side of the substrate. The lamp beads are welded on the substrate, so that there will be pins of the lamp beads on the front surface of the substrate. At this time, an adhesive layer will be arranged on the front surface of the substrate to block the pins.

[0003] In this field, the adhesive layer is usually formed by pouring silicone and waiting for it to cure. When pouring silicone, due to the self - characteristics of silicone, the formed adhesive layer includes a climbing part in addition to the matrix part. The climbing part is on the front side of the matrix part and is connected to the side wall of the lamp bead. When installing the mask subsequently, the mask is likely to interfere with the climbing part. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide an LED display module and an LED display device to solve the problem that the mask in the related technology is not easy to install.

[0005] To achieve the above purpose, according to one aspect of the utility model, an LED display module is provided, including: an LED light board, including a substrate and a plurality of LED lamp beads arranged on the front side of the substrate, the plurality of LED lamp beads being arranged at intervals; a waterproof adhesive layer, arranged on the front side of the substrate and between the plurality of LED lamp beads, the waterproof adhesive layer including a matrix part and a climbing part, the climbing part being on the front side of the matrix part and connected to the side wall of the LED lamp bead; a mask, arranged on the front side of the LED light board, the mask being provided with a plurality of light - transmitting holes, the plurality of light - transmitting holes being arranged in one - to - one correspondence with the plurality of LED lamp beads, the light - transmitting hole including a first hole section and a second hole section which are communicated, the first hole section being located behind the second hole section, the LED lamp bead being able to extend into the second hole section, and the cross - sectional area of the first hole section being larger than that of the second hole section to avoid the climbing part.

[0006] Furthermore, the mask includes a reinforcing part, and the reinforcing part is arranged between the front surface of the first hole section and the side wall of the first hole section.

[0007] Further, the distance between the side wall of the strengthening portion and the side wall of the LED lamp bead is between 0.2 mm and 0.4 mm; and / or, the distance between the side wall of the first hole section and the side wall of the LED lamp bead is between 0.45 mm and 0.65 mm; and / or, the distance between the rear surface of the strengthening portion and the rear surface of the mask is between 0.8 mm and 1.2 mm.

[0008] Further, the distance between the side wall of the second hole section and the side wall of the LED lamp bead is between 0 mm and 0.1 mm.

[0009] Further, in the direction away from the substrate, the cross-sectional area of the first hole section gradually decreases.

[0010] Further, the LED display module further includes a rear cover, and the rear cover covers the rear side of the substrate.

[0011] Further, the LED display module further includes a plurality of water blocking portions provided on the front side of the mask. The plurality of water blocking portions are provided in one-to-one correspondence with the plurality of light-transmitting holes. The water blocking portion is provided above the corresponding light-transmitting hole and extends in a direction away from the mask.

[0012] Further, the LED display module further includes a plurality of light-shielding portions provided on the front side of the mask. The plurality of light-shielding portions are provided in one-to-one correspondence with the plurality of light-transmitting holes. The light-shielding portion includes a first light-shielding body and a second light-shielding body. The first light-shielding body and the second light-shielding body are provided on both sides of the corresponding light-transmitting hole in the transverse direction.

[0013] Further, both the first light-shielding body and the second light-shielding body include a plurality of sub-blocking members, and the plurality of sub-blocking members are arranged at intervals.

[0014] According to another aspect of the present invention, there is provided an LED display device, including a box body and an LED display module provided on the front side of the box body, and the LED display module is the above-mentioned LED display module.

[0015] Applying the technical solution of the present utility model, the LED lamp board includes a substrate and a plurality of LED lamp beads arranged on the front side of the substrate. The plurality of LED lamp beads are arranged at intervals. The substrate provides an installation basis for each component of the LED lamp board. The LED lamp beads can emit light. The plurality of LED lamp beads cooperate to realize the display function of the LED display module. The LED lamp beads are soldered on the front side of the substrate; a waterproof glue layer is arranged on the front side of the substrate and between the plurality of LED lamp beads. The waterproof glue layer includes a matrix part and a climbing part. The matrix part can cover the circuits, pads, etc. on the front side of the substrate for connecting the plurality of LED lamp beads. The climbing part is located on the front side of the matrix part and is connected to the side wall of the LED lamp bead. Specifically, the waterproof glue layer is formed by pouring insulating glue and then waiting for the poured insulating glue to cure. When pouring the insulating glue, the matrix part will be formed first. In addition, at the part where the matrix part is connected to the side wall of the LED lamp bead, due to the self-property of the poured insulating glue, the insulating glue will climb along the side wall of the LED lamp bead in the direction away from the substrate, thereby forming the climbing part; a mask is arranged on the front side of the LED lamp board. A plurality of light-transmitting holes are arranged on the mask. The plurality of light-transmitting holes are arranged in one-to-one correspondence with the plurality of LED lamp beads. The light-transmitting hole includes a first hole section and a second hole section which are communicated. The first hole section is located behind the second hole section. The LED lamp bead can extend into the second hole section. The cross-sectional area of the first hole section is larger than that of the second hole section to avoid the climbing part. The mask can block other parts of the LED lamp board except the LED lamp beads to ensure the display uniformity of the LED display module. Since the cross-sectional area of the first hole section is larger than that of the second hole section, an avoidance space is formed between the side wall of the LED lamp bead and the side wall of the first hole section. When installing the mask, the avoidance space can avoid the climbing part to prevent interference between the mask and the climbing part, thereby making the installation of the mask easier. Therefore, the technical solution of the present application can effectively solve the problem that the mask is not easy to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The schematic diagrams in the specification which form a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0017] Figure 1 It shows a cross-sectional schematic view of a part of the structure of the first embodiment of the LED display module according to the present utility model;

[0018] Figure 2 It shows Figure 1 an enlarged schematic view of part A of the LED display module;

[0019] Figure 3 It shows a cross-sectional schematic view of a part of the structure of the second embodiment of the LED display module according to the present utility model;

[0020] Figure 4 shows Figure 1 a front view schematic diagram of a partial structure of the LED display module of

[0021] Figure 5 shows Figure 4 an enlarged schematic diagram of part B of the LED display module of

[0022] Among them, the above-mentioned drawings include the following reference numerals:

[0023] d1, the spacing distance between the side wall of the strengthening part and the side wall of the LED lamp bead;

[0024] d2, the spacing distance between the side wall of the first hole section and the side wall of the LED lamp bead;

[0025] d3, the spacing distance between the rear surface of the strengthening part and the rear surface of the mask;

[0026] 10, LED lamp board; 11, substrate; 12, LED lamp bead;

[0027] 20, waterproof glue layer; 21, matrix part; 22, climbing part;

[0028] 30, mask; 31, light-transmitting hole; 311, first hole section; 312, second hole section; 32, strengthening part;

[0029] 40, rear cover;

[0030] 50, water-blocking part;

[0031] 60, light-shielding part; 61, sub-shielding member. Specific embodiments

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way restricts the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0033] Such as Figure 1 and Figure 2As shown in the figure, the present application provides an LED display module. The first embodiment of the LED display module of the present application includes: an LED lamp board 10, a waterproof glue layer 20, and a mask 30. The LED lamp board 10 includes a substrate 11 and a plurality of LED lamp beads 12 disposed on the front side of the substrate 11. The plurality of LED lamp beads 12 are spaced apart; the waterproof glue layer 20 is disposed on the front side of the substrate 11 and between the plurality of LED lamp beads 12. The waterproof glue layer 20 includes a matrix portion 21 and a climbing portion 22. The climbing portion 22 is located on the front side of the matrix portion 21 and is connected to the side wall of the LED lamp bead 12; the mask 30 is disposed on the front side of the LED lamp board 10. A plurality of light-transmitting holes 31 are provided on the mask 30. The plurality of light-transmitting holes 31 are provided in one-to-one correspondence with the plurality of LED lamp beads 12. The light-transmitting hole 31 includes a first hole section 311 and a second hole section 312 that are connected in communication. The first hole section 311 is located behind the second hole section 312. The LED lamp bead 12 can extend into the second hole section 312. The cross-sectional area of the first hole section 311 is larger than the cross-sectional area of the second hole section 312 to avoid the climbing portion 22.

[0034] Applying the technical solution of this embodiment, the LED lamp board 10 includes a substrate 11 and a plurality of LED lamp beads 12 arranged on the front side of the substrate 11. The plurality of LED lamp beads 12 are arranged at intervals. The substrate 11 provides an installation basis for each component of the LED lamp board 10. The LED lamp beads 12 can emit light. The plurality of LED lamp beads 12 cooperate to realize the display function of the LED display module. The LED lamp beads 12 are soldered on the front side of the substrate 11; a waterproof glue layer 20 is arranged on the front side of the substrate 11 and between the plurality of LED lamp beads 12. The waterproof glue layer 20 includes a matrix part 21 and a climbing part 22. The matrix part 21 can cover the circuits, pads, etc. on the front side of the substrate 11 for connecting the plurality of LED lamp beads 12. The climbing part 22 is located on the front side of the matrix part 21 and is connected to the side wall of the LED lamp bead 12. Specifically, the waterproof glue layer 20 is formed by pouring insulating glue and then waiting for the poured insulating glue to cure. When pouring the insulating glue, the matrix part 21 will be formed first. In addition, at the part where the matrix part 21 is connected to the side wall of the LED lamp bead 12, due to the self-property of the poured insulating glue, the insulating glue will climb along the side wall of the LED lamp bead 12 in a direction away from the substrate 11, thereby forming the climbing part 22; a mask 30 is arranged on the front side of the LED lamp board 10. A plurality of light-transmitting holes 31 are arranged on the mask 30. The plurality of light-transmitting holes 31 are arranged in one-to-one correspondence with the plurality of LED lamp beads 12. The light-transmitting hole 31 includes a first hole section 311 and a second hole section 312 which are connected in communication. The first hole section 311 is located behind the second hole section 312. The LED lamp bead 12 can extend into the second hole section 312. The cross-sectional area of the first hole section 311 is larger than that of the second hole section 312 to avoid the climbing part 22. The mask 30 can block other parts of the LED lamp board 10 except the LED lamp beads 12 to ensure the display uniformity of the LED display module. Since the cross-sectional area of the first hole section 311 is larger than that of the second hole section 312, an avoidance space is formed between the side wall of the LED lamp bead 12 and the side wall of the first hole section 311. When installing the mask 30, the avoidance space can avoid the climbing part 22 to prevent interference between the mask 30 and the climbing part 22, thereby making the installation of the mask 30 easier. Therefore, the technical solution of this embodiment can effectively solve the problem that the mask is not easy to install.

[0035] It should be noted that in this article, "front" used to describe the orientation refers to the direction in which the LED lamp board 10 faces the viewer when the LED display module is hung on the wall; "rear" refers to the direction in which the LED lamp board 10 faces away from the viewer when the LED display module is hung on the wall; "up" refers to the direction in which the ED display module is away from the ground when the LED display module is hung on the wall; "down" refers to the direction in which the ED display module is close to the ground when the LED display module is hung on the wall.

[0036] Such as Figure 1 AndFigure 2 As shown, the mask 30 includes a reinforcing portion 32, and the reinforcing portion 32 is disposed between the front surface of the first hole section 311 and the side wall of the first hole section 311. Specifically, the reinforcing portion 32 is in an annular structure. Since the first hole section 311 is located at the rear side of the second hole section 312 and the cross-sectional area of the first hole section 311 is larger than that of the second hole section 312, a stepped surface (i.e., the front surface of the first hole section 311) is formed between the first hole section 311 and the second hole section 312. The reinforcing portion 32 is disposed between the front surface of the first hole section 311 and the side wall of the first hole section 311 to increase the thickness of this part, thereby enhancing the structural strength of the mask 30. At the same time, the part of the first hole section 311 behind the reinforcing portion 32 can still avoid the climbing portion 22.

[0037] As Figure 1 well as Figure 2 As shown, the spacing distance d1 between the side wall of the reinforcing portion 32 and the side wall of the LED lamp bead 12 is between 0.2 mm and 0.4 mm. With such a setting, the thickness of the reinforcing portion 32 can be relatively large, thereby ensuring the structural strength of the mask 30. Specifically, "between 0.2 mm and 0.4 mm" means greater than or equal to 0.2 mm and less than or equal to 0.4 mm. The spacing distance d1 between the side wall of the reinforcing portion 32 and the side wall of the LED lamp bead 12 can be 0.2 mm, 0.22 mm, 0.245 mm, 0.8 mm, 0.3 mm, 0.36 mm, 0.378 mm or 0.4 mm; the spacing distance d2 between the side wall of the first hole section 311 and the side wall of the LED lamp bead 12 is between 0.45 mm and 0.65 mm. "Between 0.45 mm and 0.65 mm" means greater than or equal to 0.45 mm and less than or equal to 0.65 mm. With such a setting, the size of the avoidance space in the lateral direction is relatively large, so that the avoidance space can realize the function of avoiding the climbing portion 22. Specifically, the spacing distance d2 between the side wall of the first hole section 311 and the side wall of the LED lamp bead 12 can be 0.45 mm, 0.46 mm, 0.48 mm, 0.5 mm, 0.57 mm, 0.6 mm, 0.63 mm or 0.65 mm; the spacing distance d3 between the rear surface of the reinforcing portion 32 and the rear surface of the mask 30 is between 0.8 mm and 1.2 mm. With such a setting, the size of the avoidance space in the front-rear direction is relatively large, so that the avoidance space can realize the function of avoiding the climbing portion 22. Specifically, "between 0.8 mm and 1.2 mm" means greater than or equal to 0.8 mm and less than or equal to 1.2 mm. The spacing distance d3 between the rear surface of the reinforcing portion 32 and the rear surface of the mask 30 can be 0.8 mm, 0.9 mm, 0.94 mm, 1 mm, 1.07 mm, 1.1 mm, 1.13 mm or 1.2 mm.

[0038] In addition, in this embodiment, the distance between the side wall of the second hole section 312 and the side wall of the LED lamp bead 12 is between 0 mm and 0.1 mm. Specifically, with such a setting, the mask 30 can block more of the front surface of the substrate 11 except for the part of the LED lamp bead 12, thereby further ensuring the display uniformity of the LED display module. "Between 0 mm and 0.1 mm" means greater than or equal to 0 and less than or equal to 0.1 mm. The distance between the side wall of the second hole section 312 and the side wall of the LED lamp bead 12 can be 0, 0.02 mm, 0.03 mm, 0.05 mm, 0.07 mm, 0.09 mm or 0.1 mm.

[0039] As Figure 1 and Figure 2 shown, the LED display module further includes a rear cover 40, and the rear cover 40 covers the rear side of the substrate 11. Specifically, the LED lamp board 10 further includes a plurality of plug-in connectors for plugging and mating with the plug-in mating parts on the box body. The plug-in connectors are arranged on the rear side of the substrate 11, and the rear cover 40 covers the rear side of the substrate 11 to protect the plug-in connectors on the rear side of the substrate 11.

[0040] In addition, as Figure 4 and Figure 5 shown, the LED display module further includes a plurality of water blocking parts 50 arranged on the front side of the mask 30. The plurality of water blocking parts 50 are arranged corresponding to the plurality of light transmission holes 31 one by one. The water blocking part 50 is arranged on the upper side of the corresponding light transmission hole 31 and extends in a direction away from the mask 30. Specifically, the water blocking part 50 extends in a direction away from the mask 30, that is, the water blocking part 50 extends forward. When encountering rainy or snowy weather, the water blocking part 50 can block the light transmission hole 31 to reduce the possibility of water entering the interior of the LED display module through the light transmission hole 31.

[0041] As Figure 4 and Figure 5 shown, the LED display module further includes a plurality of light shielding parts 60 arranged on the front side of the mask 30. The plurality of light shielding parts 60 are arranged corresponding to the plurality of light transmission holes 31 one by one. The light shielding part 60 includes a first light shielding body and a second light shielding body, and the first light shielding body and the second light shielding body are arranged on both sides of the corresponding light transmission hole 31 in the horizontal direction. Specifically, the first light shielding body and the second light shielding body of the light shielding part 60 can block the light emitted by the corresponding LED lamp bead 12 in the horizontal direction, so that this part of the light does not affect the LED lamp beads 12 adjacent to the left and right of this LED lamp bead 12, reducing the light diffusion, thereby improving the contrast of the LED display module.

[0042] As Figure 4 and Figure 5As shown, both the first light-shielding body and the second light-shielding body include a plurality of sub-shielding members 61, and the plurality of sub-shielding members 61 are arranged at intervals. Specifically, by setting like this, it can not only reduce the diffuse reflection of light and improve the contrast of the LED display module, but also ensure that viewers can view the content displayed by the LED display module within a relatively large horizontal range.

[0043] In addition, as Figure 3 shown, the present application also provides a second embodiment. Compared with the first embodiment, the difference in the second embodiment of the present application is that: in the direction away from the substrate 11, the cross-sectional area of the first hole section 311 gradually decreases. Due to the self-characteristics of the insulating glue, when the insulating glue climbs along the side wall of the LED lamp bead 12 in the direction away from the substrate 11, its climbing amount gradually decreases, so that the lateral dimension of the formed climbing part 22 in the direction away from the substrate 11 gradually decreases, so that in the direction away from the substrate 11, the cross-sectional area of the second hole section 312 gradually decreases, so that the first hole section 311 can not only avoid the climbing part 22, but also ensure the overall structural strength of the mask 30.

[0044] The present application also provides an LED display device. The LED display device of the present application includes a box body and an LED display module arranged on the front side of the box body, wherein the LED display module is the above-mentioned LED display module. The above-mentioned LED display module can effectively solve the problem that the mask in the related art is not easy to install, and the LED display device with the above-mentioned LED display module also has the above-mentioned advantages.

[0045] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description. Without contrary instructions, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as a limitation on the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0046] In addition, it should be noted that using words such as "first" and "second" to limit the components is only for the convenience of distinguishing the corresponding components. Without additional statements, the above words have no special meaning, so it cannot be understood as a limitation on the protection scope of the present invention.

[0047] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An LED display module, characterized in that: include: An LED lamp board (10) comprises a substrate (11) and a plurality of LED lamp beads (12) arranged on the front side of the substrate (11), wherein the plurality of LED lamp beads (12) are arranged at intervals; a waterproof adhesive layer (20) disposed on the front side of the substrate (11) and located between the plurality of LED lamp beads (12), the waterproof adhesive layer (20) comprising a base portion (21) and a climbing portion (22), the climbing portion (22) being located on the front side of the base portion (21) and connected to the side wall of the LED lamp bead (12); A mask (30) is arranged on the front side of the LED light board (10), and a plurality of light-transmitting holes (31) are arranged on the mask (30), and the plurality of light-transmitting holes (31) are arranged in a one-to-one correspondence with the plurality of LED lamp beads (12), and the light-transmitting holes (31) include a first hole segment (311) and a second hole segment (312) which are arranged in communication, and the first hole segment (311) is located at the rear side of the second hole segment (312), and the LED lamp bead (12) can extend into the second hole segment (312), and the cross-sectional area of ​​the first hole segment (311) is larger than the cross-sectional area of ​​the second hole segment (312) to avoid the climbing portion (22).

2. The LED display module according to claim 1, characterized in that: The mask (30) comprises a reinforcement portion (32), wherein the reinforcement portion (32) is arranged between a front surface of the first hole segment (311) and a side wall of the first hole segment (311).

3. The LED display module according to claim 2, characterized in that: The spacing distance (d1) between the side wall of the reinforcing portion (32) and the side wall of the LED lamp bead (12) is between 0.2 mm and 0.4 mm; and / or, The spacing distance (d2) between the side wall of the first hole segment (311) and the side wall of the LED lamp bead (12) is between 0.45 mm and 0.65 mm; and / or, The spacing distance (d3) between the rear surface of the reinforcement portion (32) and the rear surface of the mask (30) is between 0.8 mm and 1.2 mm.

4. The LED display module according to claim 1, characterized in that: The spacing distance between the side wall of the second hole section (312) and the side wall of the LED lamp bead (12) is between 0 mm and 0.1 mm.

5. The LED display module according to claim 1, characterized in that: In a direction away from the substrate (11), the cross-sectional area of ​​the first hole segment (311) gradually decreases.

6. The LED display module according to any one of claims 1 to 5, characterized in that: The LED display module further comprises a rear cover (40), wherein the rear cover (40) is arranged on the rear side of the substrate (11).

7. The LED display module according to any one of claims 1 to 5, characterized in that: The LED display module further comprises a plurality of water retaining portions (50) arranged on the front side of the mask (30), the plurality of water retaining portions (50) being arranged in one-to-one correspondence with the plurality of light transmission holes (31), the water retaining portions (50) being arranged on the upper side of the corresponding light transmission holes (31) and extending in a direction away from the mask (30).

8. The LED display module according to claim 7, characterized in that: The LED display module further comprises a plurality of light shielding portions (60) arranged on the front side of the mask (30), the plurality of light shielding portions (60) being arranged in one-to-one correspondence with the plurality of light transmission holes (31), the light shielding portions (60) comprising a first light shielding body and a second light shielding body, the first light shielding body and the second light shielding body being arranged on both sides of the corresponding light transmission holes (31) in a lateral direction.

9. The LED display module according to claim 8, characterized in that: The first light shielding body and the second light shielding body both comprise a plurality of sub-shielding members (61), and the plurality of sub-shielding members (61) are arranged at intervals.

10. An LED display device, comprising a box and an LED display module arranged on the front side of the box, characterized in that: The LED display module is the LED display module according to any one of claims 1 to 9.

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