CN220604258U - LED display module and LED display screen - Google Patents
LED display module and LED display screen Download PDFInfo
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- CN220604258U CN220604258U CN202322226107.5U CN202322226107U CN220604258U CN 220604258 U CN220604258 U CN 220604258U CN 202322226107 U CN202322226107 U CN 202322226107U CN 220604258 U CN220604258 U CN 220604258U
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- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical group N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 114
- 239000000758 substrate Substances 0.000 claims abstract description 41
- 239000003063 flame retardant Substances 0.000 claims abstract description 36
- 230000008901 benefit Effects 0.000 abstract description 4
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- 230000007480 spreading Effects 0.000 abstract description 3
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 239000011347 resin Substances 0.000 description 11
- 229920005989 resin Polymers 0.000 description 11
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- 239000011256 inorganic filler Substances 0.000 description 6
- 229910003475 inorganic filler Inorganic materials 0.000 description 6
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- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
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- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 4
- 239000000347 magnesium hydroxide Substances 0.000 description 4
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 4
- 229920000647 polyepoxide Polymers 0.000 description 4
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- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical group [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000217776 Holocentridae Species 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
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Abstract
The application provides an LED display module and an LED display screen, wherein the LED display module comprises a substrate, a plurality of luminous pieces, a first flame-retardant structure and a second flame-retardant structure, and the luminous pieces are arranged on the substrate at intervals; the first flame-retardant structure covers and locates on each light-emitting part, and the second flame-retardant structure covers and locates on the base plate, and is located the interval department of each light-emitting part, and first flame-retardant structure and second flame-retardant structure are used for keeping apart base plate and light-emitting part and external world. When an environmental fire disaster occurs, the first flame retardant structure and the second flame retardant structure are used for isolating the open fire from the base plate and the luminous piece, so that the base plate and the luminous piece are not ignited, and the fire disaster is prevented from spreading in time, so that the fire disaster cannot be accelerated as a combustion supporting object. The first flame retardant structure and the second flame retardant structure can improve the fireproof flame retardant level of the LED display module, and reduce the risk of fire. The LED display screen has the advantages of the LED display module, and therefore, the LED display screen also has the advantages of the LED display module.
Description
Technical Field
The application belongs to the technical field of display equipment, and more specifically relates to an LED display module and an LED display screen.
Background
With the wide application of LED display screens, the safety problem of LED display screens is becoming more and more interesting. Under the ageing state of the LED display screen, the vapor easily permeates the LED display screen to cause short circuit of electronic elements and circuits, and the LED display screen can be ignited by a heating source to cause fire risks. Because the LED electronic display screen belongs to electronic products, most of main materials of the LED electronic display screen belong to combustible materials, such as LED lamp beads, masks, ICs, connecting devices and other combustible components, when a fire disaster occurs in a use environment, the LED electronic display screen can be used as fuel to accelerate the development of the fire disaster, and further increase the intensity of the fire disaster.
Disclosure of Invention
An aim of the embodiment of the application is to provide an LED display module and an LED display screen, so as to solve the technical problem that the LED display screen in the prior art is easy to ignite.
In order to achieve the above purpose, the technical scheme adopted in the application is as follows:
an LED display module is provided, which comprises a substrate, a plurality of luminous pieces, a first flame-retardant structure and a second flame-retardant structure, wherein the luminous pieces are arranged on the substrate at intervals; the first flame-retardant structure is covered on each light-emitting piece, the second flame-retardant structure is covered on the substrate and located at the interval of each light-emitting piece, and the first flame-retardant structure and the second flame-retardant structure are used for isolating the substrate and the light-emitting pieces from the outside.
As a further improvement of the above technical scheme:
optionally, the second flame retardant structure is provided with a plurality of grooves, and each groove is located at a space of each light emitting element.
Optionally, the plurality of light emitting elements are sequentially arranged at intervals along the first direction to form a light emitting element row group, the number of the light emitting element row group is a plurality, and each light emitting element row group is sequentially arranged at intervals along the second direction to form a light emitting element array.
Optionally, the grooves include a first groove, and the first groove is located between the light emitting elements of each light emitting element row group.
Optionally, the grooves include a second groove, the second groove being located between each light emitting element row group.
Optionally, the first flame retardant structure is a light-transmitting flame retardant layer.
Optionally, the second flame retardant structure is a black shading flame retardant layer.
Optionally, the protruding height of the first flame retardant structure protruding from the substrate is equal to the protruding height of the second flame retardant structure protruding from the substrate.
Optionally, the first flame retardant structure is covered on the light emitting part, and the thickness of the cover is in the range of 0.5mm-0.7mm.
The application also provides an LED display screen, comprising the LED display module.
The application provides a LED display module assembly and LED display screen's beneficial effect lies in:
the LED display module comprises a substrate, a plurality of luminous pieces, a first flame-retardant structure and a second flame-retardant structure, wherein the luminous pieces are arranged on the substrate at intervals; the first flame-retardant structure covers and locates on each light-emitting part, and the second flame-retardant structure covers and locates on the base plate, and is located the interval department of each light-emitting part, and first flame-retardant structure and second flame-retardant structure are used for keeping apart base plate and light-emitting part and external world.
The substrate is specifically a circuit board of the LED display module, such as a PCB board, a PCBA board, etc. The luminous element is a light emitting diode, an LED chip and the like. The first flame-retardant structure covers the light-emitting piece, and prevents the open flame from directly contacting the light-emitting piece to prevent the light-emitting piece from being ignited; the second flame retardant structure covers the substrate, and prevents the open flame from directly contacting the substrate to prevent the substrate from being ignited. The base plate and the luminous piece are covered by the first flame-retardant structure and the second flame-retardant structure, the luminous piece is not easy to damp, the service life of the luminous piece can be prolonged, when an environmental fire disaster occurs, the first flame-retardant structure and the second flame-retardant structure are used for isolating open fire from the base plate and the luminous piece, so that the base plate and the luminous piece are not ignited, and fire is prevented from spreading in time, and the luminous piece cannot be used as a combustion-supporting substance to accelerate the development of the fire disaster. The first flame retardant structure and the second flame retardant structure can improve the fireproof flame retardant level of the LED display module, and reduce the risk of fire disaster of the LED display module.
The application also provides an LED display screen, which comprises the LED display module, a display screen shell, a driving module, a heat dissipation structure and the like. Because the LED display screen of this application has the LED display module assembly of this application, consequently, also have the advantage of the LED display module assembly of this application.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following description will briefly introduce the drawings that are needed in the embodiments or the description of the prior art, it is obvious that the drawings in the following description are only some embodiments of the present application, and that other 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 front view structure of an LED display module provided in the present application;
FIG. 2 is a schematic view of a partial enlarged structure in FIG. 1;
FIG. 3 is a schematic cross-sectional view of the structure at A-A in FIG. 1;
FIG. 4 is a schematic view of a partial enlarged structure in FIG. 3;
FIG. 5 is a schematic cross-sectional view of the structure at B-B in FIG. 1;
fig. 6 is a partially enlarged schematic view of the structure of fig. 5.
Wherein, each reference sign in the figure:
1. a substrate; 2. A light emitting member;
3. a first flame retardant structure; 4. A second flame retardant structure;
5. a first groove; 6. And a second groove.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved by the present application more clear, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are 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 one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
With the wide application of LED display screens, the safety problem of LED display screens is becoming more and more interesting. Under the ageing state of the LED display screen, the vapor easily permeates the LED display screen to cause short circuit of electronic elements and circuits, and the LED display screen can be ignited by a heating source to cause fire risks. Because the LED electronic display screen belongs to electronic products, most of main materials of the LED electronic display screen belong to combustible materials, such as LED lamp beads, masks, ICs, connecting devices and other combustible components, when a fire disaster occurs in a use environment, the LED electronic display screen can be used as fuel to accelerate the development of the fire disaster, and further increase the intensity of the fire disaster.
As shown in fig. 1 to 6, the present application provides an LED display module, including a substrate 1, a plurality of light emitting members 2, a first flame retardant structure 3 and a second flame retardant structure 4, each light emitting member 2 being arranged on the substrate 1 at intervals from each other; the first flame retardant structure 3 is covered on each light emitting piece 2, the second flame retardant structure 4 is covered on the substrate 1 and is positioned at the interval of each light emitting piece 2, and the first flame retardant structure 3 and the second flame retardant structure 4 are used for isolating the substrate 1 and the light emitting pieces 2 from the outside.
The substrate 1 is specifically a circuit board of an LED display module, such as a PCB board, a PCBA board, etc. The light emitting element 2 is a light emitting diode, an LED chip, or the like. The first flame-retardant structure 3 is covered on the light-emitting piece 2, and can prevent the open flame from directly contacting with the light-emitting piece 2 to prevent the light-emitting piece 2 from being ignited; the second flame retardant structure 4 is covered on the substrate 1, and prevents the direct contact of the open flame with the substrate 1, so as to prevent ignition of the substrate 1. The base plate 1 and the light-emitting piece 2 are covered by the first flame-retardant structure 3 and the second flame-retardant structure 4, the light-emitting piece 2 is not easy to damp, the service life of the light-emitting piece 2 can be prolonged, when an environmental fire disaster occurs, the first flame-retardant structure 3 and the second flame-retardant structure 4 are used for isolating open fire from the base plate 1 and the light-emitting piece 2, so that the base plate 1 and the light-emitting piece 2 are not ignited, fire spreading is prevented in time, and the fire cannot be accelerated as a combustion-supporting substance. The first flame retardant structure 3 and the second flame retardant structure 4 can improve the fireproof flame retardant level of the LED display module, and reduce the risk of fire disaster of the LED display module.
In one embodiment of the present application, the first flame retardant structure 3 is a light transmissive flame retardant layer.
The light-transmitting flame-retardant layer consists of substrate resin, light-transmitting inorganic filler, curing agent, flame retardant and the like. When the substrate resin is proportioned, one or more of epoxy resin, modified epoxy resin, acrylic resin, unsaturated resin and modified unsaturated resin can be selected as the substrate resin, and the substrate resin accounts for 50-60% of the light-transmitting flame-retardant layer. The light-transmitting inorganic filler can be selected from nano aluminum hydroxide, nano structure modified aluminum hydroxide, nano magnesium hydroxide, micron magnesium hydroxide and the like, and the light-transmitting inorganic filler accounts for 20% -30% of the light-transmitting flame-retardant layer. The curing agent accounts for 5% -10% of the light-transmitting flame-retardant layer. The flame retardant is a nanoscale inorganic silicon flame retardant, and the proportion of the flame retardant in the light-transmitting flame-retardant layer is 1% -20%.
After the materials are prepared in proportion, the materials are covered on the luminous piece 2 in a dispensing mode, and a light-transmitting flame-retardant layer is formed after heating and curing.
In one embodiment of the present application, the second flame retardant structure 4 is a black light shielding flame retardant layer.
The black shading flame retardant layer consists of substrate resin, coloring inorganic filler, curing agent, flame retardant and the like. In the proportioning, the substrate resin can be one or more of epoxy resin, modified epoxy resin, acrylic resin, unsaturated resin and modified unsaturated resin, and the substrate resin accounts for 30-40% of the black shading flame retardant layer. The coloring inorganic filler comprises nano oxyhydrogen compound and inorganic pigment filler, wherein the mass ratio of the oxyhydrogen compound to the inorganic pigment filler is 75:25, the oxyhydrogen compound can be selected from nano aluminum hydroxide, nano structure modified aluminum hydroxide, nano magnesium hydroxide, micron magnesium hydroxide and the like; the inorganic pigment filler is copper chrome black, iron chrome black and the like; the colored inorganic filler accounts for 60-70% of the black shading flame retardant layer. The curing agent accounts for 5-10% of the black shading flame retardant layer. The flame retardant is calcium carbonate and silicon dioxide in the ratio of 50:50; the flame retardant accounts for 1-20% of the black shading flame retardant layer.
After the materials are prepared in proportion, the substrate 1 is covered by the modes of mould pressing, injection molding and the like, and a black shading flame retardant layer is formed after heating and curing. The black shading flame-retardant layer is used for absorbing ambient light or interference light, so that the contrast ratio or display effect of the LED display module is improved. Meanwhile, the ultra-black fireproof layer can also protect the LED display module from falling off the lamp easily when colliding with. The protruding height of the black shading flame retardant layer on the substrate 1 is 0.5mm-0.7mm higher than that of the light emitting piece 2 on the substrate 1, and the hardness of the black shading flame retardant layer is 40D-80D.
As shown in fig. 3 to 6, in one embodiment of the present application, the second flame retardant structure 4 is provided with a plurality of grooves, and each groove is located at a space between each light emitting element 2.
Wherein, the first groove can absorb or refract the ambient light and the interference light to improve the contrast ratio or the display effect of the LED display module, and the second groove and the first groove can reduce the weight of the second flame retardant structure 4 to lighten the load on the LED display module.
As shown in fig. 1 and 2, in one embodiment of the present application, a plurality of light emitting elements 2 are sequentially arranged at intervals along a first direction to form a light emitting element row group, the number of the light emitting element row groups is plural, and each light emitting element row group is sequentially arranged at intervals along a second direction to form a light emitting element array.
The first direction is the width direction of the LED display module, and the second direction is the length direction of the LED display module; or the first direction is the length direction of the LED display module, and the second direction is the width direction of the LED display module.
As shown in fig. 3 to 6, in one embodiment of the present application, the grooves include first grooves 5, the first grooves 5 being located between the light emitting elements 2 of the light emitting element row groups.
Wherein, the distance range from the first groove 5 to the nearest edge of the luminous element 2 is 1.2mm-1.5mm, the length of the first groove 5 is consistent with the length of the luminous element 2, the width range of the first groove 5 is 0.7mm-1mm, and the depth of the first groove 5 is 0.5mm-0.7mm. The number of first grooves 5 may be one or more between the light emitting members 2. When the number of the first grooves 5 is plural, the first grooves 5 are arranged parallel to each other and at intervals. The first groove 5 is used for absorbing ambient light or interference light, when the ambient light or interference light irradiates into the first groove 5, the ambient light or interference light cannot irradiate to the viewing direction through multiple reflections of the inner wall of the first groove 5, and then the contrast ratio or display effect of each luminous element row group is improved.
As shown in fig. 3 to 6, in one embodiment of the present application, the grooves include second grooves 6, the second grooves 6 being located between each light emitting element row group.
Wherein the distance from the second groove 6 to the nearest edge of the luminous element 2 is 1.6mm-2mm, the width of the second groove 6 is 1mm-2mm, the depth of the second groove 6 is 0.5mm-0.7mm, and the inner wall of the second groove 6 is provided with a drawing angle, and the drawing angle is 2-5 degrees. The number of second grooves 6 may be one or more between each light emitting element row group. When the number of the second grooves 6 is plural, the second grooves 6 are arranged in parallel with and spaced apart from each other. The second groove 6 is used for absorbing ambient light or interference light, when the ambient light or interference light irradiates into the second groove 6, the ambient light or interference light cannot irradiate to the viewing direction through multiple reflections on the inner wall of the second groove 6, and therefore the overall contrast ratio or display effect of the LED display module is improved.
In one embodiment of the present application, the protruding height of the first flame retardant structure 3 protruding from the substrate 1 is equal to the protruding height of the second flame retardant structure 4 protruding from the substrate 1, that is, the top surface of the first flame retardant structure 3 is level with the top surface of the second flame retardant structure 4, so that the surface of the LED display module is smoother; when an environmental fire disaster occurs, the flat surface of the LED display module can also reduce the contact area with open fire.
In one embodiment of the present application, the thickness of the cover of the first flame retardant structure 3 (as shown by h in fig. 4) covering the light emitting member 2 is in the range of 0.5mm to 0.7mm.
When the thickness of the first flame retardant structure 3 is less than 0.5mm, the first flame retardant structure 3 is easily peeled off from the light emitting member 2 by burning with an open flame. When the thickness of the first flame retardant structure 3 is greater than 0.7mm, the weight of the first flame retardant structure 3 is heavy to the load of the light emitting member 2, and is easy to squeeze the light emitting member 2. After this test, it was found that the optimum thickness range for the covering thickness of the first flame-retardant structure 3 on the luminous element 2 was 0.5mm to 0.7mm.
The LED display module of this application at first welds drive IC and each light-emitting part 2 respectively at the both ends face of base plate 1, covers the mode that passes through the printing opacity flame retardant coating again on each light-emitting part 2 through the point gum, fills black shading flame retardant coating to between each printing opacity flame retardant coating at last, treats printing opacity flame retardant coating and black shading flame retardant coating solidification back and forms the LED display module of this application.
The application also provides an LED display screen, including the LED display module among the above-mentioned embodiment, still include display screen casing, drive module, heat radiation structure etc..
The LED display module is a core component of the LED display screen and is used for emitting light, displaying images and the like. The display screen shell is used for protecting internal components and parts and providing waterproof, dustproof and other functions. The driving module is electrically connected with a light emitting part (LED lamp wick) in the LED display module, provides electric energy for the light emitting part, and is also used for controlling the brightness, color, display content and the like of the display screen. The heat radiation structure is used for discharging heat on the LED display module and preventing the LED display module from overheating.
Because the LED display screen of this application has the LED display module assembly of this application, consequently, also have the advantage of the LED display module assembly of this application.
The foregoing description of the preferred embodiments of the present application is not intended to be limiting, but is intended to cover any and all modifications, equivalents, and alternatives falling within the spirit and principles of the present application.
Claims (10)
1. An LED display module, characterized by comprising a substrate (1), a plurality of light emitting members (2), a first flame retardant structure (3) and a second flame retardant structure (4), each of the light emitting members (2) being arranged on the substrate (1) at a distance from each other; the first flame-retardant structures (3) are covered on the light-emitting pieces (2), the second flame-retardant structures (4) are covered on the substrate (1) and located at intervals of the light-emitting pieces (2), and the first flame-retardant structures (3) and the second flame-retardant structures (4) are used for isolating the substrate (1) and the light-emitting pieces (2) from the outside.
2. The LED display module according to claim 1, wherein the second flame retardant structure (4) is provided with a plurality of grooves, and each groove is located at a space between each light emitting element (2).
3. The LED display module according to claim 2, wherein a plurality of the light emitting elements (2) are sequentially arranged at intervals along a first direction to form a light emitting element row group, the number of the light emitting element row group is plural, and each of the light emitting element row groups is sequentially arranged at intervals along a second direction to form a light emitting element array.
4. A LED display module according to claim 3, characterized in that the recess comprises a first recess (5), the first recess (5) being located between the light emitting elements (2) of the light emitting element row groups.
5. A LED display module according to claim 3, characterized in that the recess comprises a second recess (6), the second recess (6) being located between each row of light emitting elements.
6. The LED display module according to claim 1, wherein the first flame retardant structure (3) is a light transmissive flame retardant layer.
7. The LED display module according to claim 1, wherein the second flame retardant structure (4) is a black light shielding flame retardant layer.
8. The LED display module according to claim 1, wherein the protruding height of the first flame retardant structure (3) protruding from the substrate (1) is equal to the protruding height of the second flame retardant structure (4) protruding from the substrate (1).
9. The LED display module according to claim 1, wherein the first flame retardant structure (3) is covered on the light emitting member (2) and has a covering thickness ranging from 0.5mm to 0.7mm.
10. An LED display screen comprising an LED display module according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322226107.5U CN220604258U (en) | 2023-08-17 | 2023-08-17 | LED display module and LED display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322226107.5U CN220604258U (en) | 2023-08-17 | 2023-08-17 | LED display module and LED display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220604258U true CN220604258U (en) | 2024-03-15 |
Family
ID=90182923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322226107.5U Active CN220604258U (en) | 2023-08-17 | 2023-08-17 | LED display module and LED display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220604258U (en) |
-
2023
- 2023-08-17 CN CN202322226107.5U patent/CN220604258U/en active Active
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