CN214011693U - Reflective film structure, Mini-LED backlight module and display equipment - Google Patents
Reflective film structure, Mini-LED backlight module and display equipment Download PDFInfo
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- CN214011693U CN214011693U CN202023334915.6U CN202023334915U CN214011693U CN 214011693 U CN214011693 U CN 214011693U CN 202023334915 U CN202023334915 U CN 202023334915U CN 214011693 U CN214011693 U CN 214011693U
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Abstract
The utility model relates to a reflective membrane structure, include: the protective film comprises a protective film and a second adhesive layer which is arranged on the protective film in a stacking mode. The utility model discloses still relate to a Mini-LED backlight unit and display device. The utility model discloses a reflectance coating structure only needs to isolate the reflectance coating subassembly when using, and the reflectance coating subassembly can be fixed in Mini-LED backlight unit through first glue film bonding, and assembly process is simple, and is with low costs, and simultaneously, the reflectivity of reflectance coating subassembly is high, can make Mini-LED backlight unit's luminance promote 20% -50%, consequently, can further improve the luminance of using Mini-LED backlight unit's display device.
Description
Technical Field
The utility model relates to the field of photoelectric technology, especially, relate to reflectance coating structure, Mini-LED backlight unit and display device.
Background
The Mini-LED is a small LED with the size of about 100 microns, and the Mini-LED is applied to the backlight module, so that the increase of the thickness of the liquid crystal display device can be reduced while a narrow frame is realized.
The Mini-LED backlight module has a similar structure to the conventional backlight module, but generally uses a printed white reflective ink (white oil) or a sprayed white reflective silica gel to replace the reflective film, however, the printed white reflective ink (white oil) or the sprayed white reflective silica gel has a low reflectivity, a low printing precision and a large surface roughness, which results in an inconvenient assembly.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is desirable to provide a reflective film structure, a Mini-LED backlight module and a display device.
A reflective film structure, comprising:
a release film;
the reflection film assembly comprises a reflection film and a first adhesive layer which is arranged in a stacking mode with the reflection film, the first adhesive layer is arranged on the release film in a stacking mode, and a plurality of through holes penetrating through the reflection film and the first adhesive layer are formed in the reflection film assembly at intervals;
the protective film component comprises a protective film and a second adhesive layer which is arranged on the protective film in a laminated mode, and the second adhesive layer is arranged on the reflecting film in a laminated mode.
In one embodiment, the distance between the centers of two adjacent through holes is 0.5mm-20 mm.
In one embodiment, the through hole is a round hole, and the diameter of the round hole is 0.5mm-20 mm;
or the through hole is a square hole, and the size of the square hole is 0.5mm multiplied by 0.5mm-20mm multiplied by 20 mm.
In one embodiment, a plurality of the through holes are distributed in an array.
In one embodiment, the reflective film has a reflectance of 90% or more, a surface glossiness (60 °) of 5GU to 120GU, and a surface roughness of 0.05 μm to 1.5 μm.
In one embodiment, the release film is a release film with antistatic double surfaces, the protective film is a protective film with antistatic double surfaces, and the surface impedance of the release film and the surface impedance of the protective film are both independently selected from 106Ω/□-1010Ω/□。
In one embodiment, the first adhesive layer is at least one selected from an acrylic adhesive layer, a silica gel layer and a polyurethane adhesive layer, the peeling force of the first adhesive layer is 500gf/inch to 5000gf/inch, and the holding force is 0.1mm @25 ℃/24h to 5.0mm @25 ℃/24 h.
In one embodiment, the thickness of the release film is 20 μm to 150 μm, the thickness of the reflective film is 20 μm to 500 μm, the thickness of the protective film is 20 μm to 150 μm, the thickness of the first adhesive layer is 5 μm to 50 μm, and the thickness of the second adhesive layer is 5 μm to 15 μm.
A Mini-LED backlight module comprises the reflection film assembly in the reflection film structure.
A display device comprises the Mini-LED backlight module.
The utility model discloses an among the reflectance coating structure, including the reflectance coating subassembly of range upon range of constitution of reflectance coating and first glue film, simultaneously, the interval is equipped with a plurality of through-holes that run through reflectance coating and first glue film in the reflectance coating subassembly, and the through-hole is used as the light-emitting light path of light source. Therefore, only need follow the utility model discloses an in the reflectance coating structure isolate the reflectance coating subassembly, the reflectance coating subassembly can be fixed in Mini-LED backlight unit through first glue film bonding, and assembly process is simple, and is with low costs, and simultaneously, the reflectivity of reflectance coating subassembly is high, can make Mini-LED backlight unit's luminance promote 20% -50%. Therefore, the brightness of the display equipment applying the Mini-LED backlight module can be further improved.
Drawings
Fig. 1 is a schematic structural diagram of the reflective film structure of the present invention.
In the figure: 1. a release film; 2. a reflective film assembly; 21. a first glue layer; 22. a reflective film; 23. a through hole; 3. a protective membrane module; 31. a second adhesive layer; 32. and (5) protecting the film.
Detailed Description
The reflective film structure, the Mini-LED backlight module and the display device provided by the present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, for the reflective film structure provided by the present invention, the reflective film structure includes a release film 1, a reflective film assembly 2 and a protective film assembly 3. The reflective film assembly 2 comprises a reflective film 22 and a first adhesive layer 21 laminated with the reflective film 22, the first adhesive layer 21 is laminated on the release film 1, and a plurality of through holes 23 penetrating through the reflective film 22 and the first adhesive layer 21 are arranged at intervals on the reflective film assembly 2; the protective film assembly 3 comprises a protective film 32 and a second adhesive layer 31 stacked on the protective film 32, wherein the second adhesive layer 31 is stacked on the reflective film 22.
When the reflection film assembly 2 is used, the through hole 23 is used as an outgoing light path of the light source. Considering that the central distance (pitch) of the LED lamp beads in the Mini-LED backlight module is relatively short, in an embodiment, the central distance between two adjacent through holes 23 is preferably 0.5mm to 20mm, and is specifically selected according to the distribution of the LED lamp beads.
The shape of the through hole 23 is not limited, and the through hole can be a circular hole, an elliptical hole, a square hole, a triangular hole, etc., in an embodiment, the through hole 23 is preferably a circular hole or a square hole, in order to enable the light emitted by the Mini-LED to effectively pass through the through hole 23, when the through hole 23 is a circular hole, the diameter of the circular hole is preferably 0.5mm to 20mm, when the through hole 23 is a square hole, the size of the square hole is preferably 0.5mm × 0.5mm to 20mm × 20mm, and the through hole is specifically selected according to the diameter of the LED lamp bead.
In the Mini-LED backlight module, a large number of Mini-LED lamp beads are usually distributed in an array, and in order to enable light emitted by each Mini-LED lamp bead to pass through the through holes 23, a plurality of the through holes 23 are also distributed in an array and correspond to the Mini-LED lamp beads one by one.
In the reflective film module 2, the thickness of the reflective film 22 is preferably 20 μm to 500. mu.m. In order to ensure the reflectivity of the reflective film assembly 2, the reflectivity of the reflective film 22 is preferably greater than or equal to 90%, and more preferably greater than 90%. The 60-degree specular gloss of the reflecting film 22 is 5GU-120GU, the surface roughness (Ra) is 0.05 mu m-1.5 mu m, and the reflecting film is specifically selected according to the application scene of the Mini-LED backlight module.
In the reflective film assembly 2, the thickness of the first adhesive layer 21 is preferably 5 μm to 50 μm, and more preferably 15 μm to 30 μm, so that the thickness of the reflective film assembly 2 is thinner while the bonding strength is ensured, which is beneficial to cutting, and further improves the production efficiency and reduces the cost.
In order to ensure the bonding strength of the first adhesive layer 21, the peeling force of the first adhesive layer 21 is preferably 500gf/inch to 5000gf/inch (test standard reference GB/T2792-.
In one embodiment, the first adhesive layer 21 is at least one selected from an acrylic adhesive layer, a silicone adhesive layer, a polyurethane adhesive layer, and the like.
The protective film assembly 3 is mainly used for protecting the reflective film assembly 2, in an embodiment, the thickness of the protective film 32 is 20 μm to 150 μm, and the protective film 32 is fixed on the reflective film 22 by the second adhesive layer 31. In order to make the protective film assembly 3 more easily separated from the reflective film assembly 2, the thickness of the second glue layer 31 is preferably 5 μm to 15 μm, and more preferably 10 μm; the peel force of the second adhesive layer 31 is much smaller than that of the first adhesive layer 21, and preferably 3gf/inch to 20 gf/inch. Further, the peeling becomes easier as the holding force of the second adhesive layer is smaller.
In one embodiment, the second adhesive layer 31 may also be at least one selected from an acrylic adhesive layer, a silicone adhesive layer, a polyurethane adhesive layer, and the like.
In order to avoid static electricity generated when the protective film assembly 3 is separated, in one embodiment, the protective film 32 is preferably formed of a material having a low dielectric constantIs a protective film 32 with two antistatic surfaces, the surface impedance of the protective film 32 is 106Ω/□-1010Omega/□, more preferably 106Ω/□-109Ω/□。
In the reflective film structure, the thickness of the release film 1 is preferably 20 μm to 150 μm. Similarly, in order to avoid the generation of static electricity when the release film 1 is separated from the reflective film assembly 2, in one embodiment, the release film 1 is preferably a release film 1 with both sides being antistatic, and the surface impedance of the release film 1 is 106Ω/□-1010Omega/□, more preferably 106Ω/□-109Ω/□。
The utility model also provides a Mini-LED backlight unit, Mini-LED backlight unit includes as above reflectance coating subassembly 2 in the reflectance coating structure.
Specifically, when the reflective film structure is used, only the reflective film component 2 needs to be separated, the reflective film component 2 can be bonded and fixed in the Mini-LED backlight module through the first adhesive layer 21, and specifically can be bonded and fixed on substrates such as a Mini-LED backlight module PCB and an FPC, the assembling process is simple, the cost is low, and meanwhile, the reflectivity of the reflective film component 2 is high, so that the brightness of the Mini-LED backlight module can be improved by 20% -50%.
The utility model also provides a display device, display device includes as above Mini-LED backlight unit, this display device has higher luminance and less thickness.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A reflective film structure, comprising:
a release film;
the reflection film assembly comprises a reflection film and a first adhesive layer which is arranged in a stacking mode with the reflection film, the first adhesive layer is arranged on the release film in a stacking mode, and a plurality of through holes penetrating through the reflection film and the first adhesive layer are formed in the reflection film assembly at intervals;
the protective film component comprises a protective film and a second adhesive layer which is arranged on the protective film in a laminated mode, and the second adhesive layer is arranged on the reflecting film in a laminated mode.
2. The structure of claim 1, wherein the distance between the centers of two adjacent through holes is 0.5mm-20 mm.
3. The reflective film structure of claim 1, wherein the through holes are circular holes having a diameter of 0.5mm to 20 mm;
or the through hole is a square hole, and the size of the square hole is 0.5mm multiplied by 0.5mm-20mm multiplied by 20 mm.
4. The reflective film structure of claim 1, wherein a plurality of the through holes are distributed in an array.
5. The reflective film structure of claim 1, wherein the reflective film has a reflectance of 90% or more, a surface gloss of 5GU to 120GU, and a surface roughness of 0.05 μm to 1.5 μm.
6. The reflective film structure of claim 1, wherein the release film is a release film with both sides being antistatic, and the protective film is a protective film with both sides being antistaticThe surface impedances of the release film and the protective film are respectively and independently selected from 106Ω/□-1010Ω/□。
7. The reflective film structure of claim 1, wherein the first adhesive layer is at least one selected from an acrylic adhesive layer, a silicone adhesive layer, and a polyurethane adhesive layer, the first adhesive layer has a peel force of 500gf/inch to 5000gf/inch, and a holding force of 0.1mm @25 ℃/24h to 5.0mm @25 ℃/24 h.
8. The reflective film structure according to claim 1, wherein the release film has a thickness of 20 μm to 150 μm, the reflective film has a thickness of 20 μm to 500 μm, the protective film has a thickness of 20 μm to 150 μm, the first adhesive layer has a thickness of 5 μm to 50 μm, and the second adhesive layer has a thickness of 5 μm to 15 μm.
9. A Mini-LED backlight module, wherein the Mini-LED backlight module comprises the reflective film assembly of any one of claims 1 to 8.
10. A display device, characterized in that the display device comprises a Mini-LED backlight module according to claim 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023334915.6U CN214011693U (en) | 2020-12-30 | 2020-12-30 | Reflective film structure, Mini-LED backlight module and display equipment |
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| CN202023334915.6U CN214011693U (en) | 2020-12-30 | 2020-12-30 | Reflective film structure, Mini-LED backlight module and display equipment |
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| CN214011693U true CN214011693U (en) | 2021-08-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115268126A (en) * | 2022-07-29 | 2022-11-01 | 京东方晶芯科技有限公司 | Reflective film, reflective sheet attaching apparatus and method, light-emitting substrate, and display device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115268126A (en) * | 2022-07-29 | 2022-11-01 | 京东方晶芯科技有限公司 | Reflective film, reflective sheet attaching apparatus and method, light-emitting substrate, and display device |
| CN115268126B (en) * | 2022-07-29 | 2024-01-30 | 京东方晶芯科技有限公司 | Reflective film, reflective sheet attaching apparatus and method, light-emitting substrate, and display device |
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