CN220961907U - Reflection film for lamp - Google Patents
Reflection film for lamp Download PDFInfo
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- CN220961907U CN220961907U CN202322090734.0U CN202322090734U CN220961907U CN 220961907 U CN220961907 U CN 220961907U CN 202322090734 U CN202322090734 U CN 202322090734U CN 220961907 U CN220961907 U CN 220961907U
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- 239000010410 layer Substances 0.000 claims abstract description 185
- 239000002131 composite material Substances 0.000 claims abstract description 47
- 239000012790 adhesive layer Substances 0.000 claims abstract description 45
- 229920001721 polyimide Polymers 0.000 claims abstract description 10
- 239000000758 substrate Substances 0.000 claims abstract description 4
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 9
- 239000011127 biaxially oriented polypropylene Substances 0.000 claims description 5
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- 229920006259 thermoplastic polyimide Polymers 0.000 claims description 5
- 229920006378 biaxially oriented polypropylene Polymers 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 3
- 229920002799 BoPET Polymers 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- 239000002313 adhesive film Substances 0.000 claims description 2
- 238000013329 compounding Methods 0.000 claims description 2
- 229920006335 epoxy glue Polymers 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 7
- 238000002360 preparation method Methods 0.000 abstract description 5
- 239000004642 Polyimide Substances 0.000 abstract description 4
- 238000010030 laminating Methods 0.000 abstract description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000003475 lamination Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000004595 color masterbatch Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000004594 Masterbatch (MB) Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- 239000003522 acrylic cement Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Laminated Bodies (AREA)
Abstract
The utility model discloses a reflecting film for a lamp, which comprises: the laminating layer is used for being connected with the substrate and provided with a first surface and a second surface; the composite layer is connected with the first surface through the first adhesive layer; the material of the bonding layer comprises polyimide; the composite layer comprises at least one colored unit layer and/or the first adhesive layer is a colored adhesive layer. The reflecting film for the lamp is reasonable in structure by combining the bonding layer and the composite layer, the bonding layer made of polyimide has the advantages of high temperature resistance, long service life and the like, and the bonding layer is combined with the composite layer and/or the colored adhesive layer with the colored unit layer, so that the brightness of reflected light is enhanced after the light rays emitted by the light source are reflected, and the light utilization rate is improved; the colored unit layer or the first adhesive layer is arranged on the composite layer to be a colored adhesive layer, so that the obtained reflecting film is more economical, the preparation process is simple, and the rejection rate is low.
Description
Technical Field
The utility model relates to the technical field of films, in particular to a reflecting film for a lamp.
Background
Light Emitting Diodes (LEDs) are commonly used light emitting devices, have the advantages of long service life, high light efficiency, no radiation, impact resistance, low power consumption and the like, and can be suitable for different scenes. The LCD is a non-luminous display technology, and a backlight is used to display images. Therefore, the development of the backlight module plays a crucial role in the development of the display.
The backlight module is mainly assembled by an LED light source, a lampshade, a reflecting film, a light guide plate, a diffusion film, a brightness enhancement film, an outer frame and the like. The reflective film is used for efficiently and non-destructively reflecting light leaked from the bottom of the light guide plate, so that the light loss is reduced, the electricity consumption is reduced, the light saturation of the liquid crystal display is improved, and the color of the reflective film is determined according to the LED light source. The conventional reflective film is commonly used for combining a polyimide film and a glue layer, has high cost and has a thickness which does not meet the ultrathin standard.
Therefore, there is a need for an improvement in the reflective film for lamps in the prior art.
Disclosure of utility model
The utility model aims to overcome the defects in the prior art, and provides the reflecting film for the lamp, which has the advantages of high temperature resistance, long service life and the like, and the bonding layer is combined with the composite layer and/or the colored adhesive layer with the colored unit layer, so that the brightness of the reflected light is enhanced after the light emitted by the light source is reflected, and the utilization rate of the light is improved; the obtained reflecting film is more economical, the preparation process is simple, and the rejection rate is low.
In order to achieve the technical effects, the technical scheme of the utility model is as follows: a reflective film for a lamp, comprising:
the laminating layer is used for being connected with the substrate and provided with a first surface and a second surface;
The composite layer is connected with the first surface through a first adhesive layer;
The material of the bonding layer comprises polyimide;
the composite layer comprises at least one colored unit layer and/or the first adhesive layer is a colored adhesive layer.
The preferable technical scheme is that the attaching layer is a thermoplastic polyimide adhesive film.
The preferable technical scheme is that the attaching layer is formed by compounding a polyimide film and a second adhesive layer, and the surface of the second adhesive layer is a second surface.
The preferable technical scheme is that the composite layer further comprises a transparent unit layer, the laminated structure of the composite layer is one of a colored unit layer/transparent unit layer, a transparent unit layer/colored unit layer/transparent unit layer, and a colored unit layer/transparent unit layer, and the transparent unit layer is the outermost layer of the reflecting film.
The preferable technical scheme is that the layer thickness of the transparent unit layer is larger than or equal to the layer thickness of the colored unit layer.
The preferable technical scheme is that the material of the composite layer is biaxially oriented polypropylene and/or polyethylene terephthalate.
The preferable technical scheme is that the second adhesive layer is epoxy resin adhesive.
The preferable technical scheme is that the first adhesive layer is epoxy resin adhesive and/or acrylic acid adhesive.
The preferable technical scheme is that the layer thickness of the bonding layer is 5-10 mu m, the layer thickness of the composite layer is 8-15 mu m, and the layer thickness of the first adhesive layer is 3-5 mu m.
The preferable technical scheme is that the second surface of the attaching layer is provided with a first release layer, and the surface of the transparent unit layer of the composite layer is provided with a second release layer.
The utility model has the advantages and beneficial effects that:
The reflecting film for the lamp is reasonable in structure by combining the bonding layer and the composite layer, the bonding layer made of polyimide has the advantages of high temperature resistance, long service life and the like, and the bonding layer is combined with the composite layer and/or the colored adhesive layer with the colored unit layer, so that the brightness of reflected light is enhanced after the light rays emitted by the light source are reflected, and the light utilization rate is improved; the colored unit layer or the first adhesive layer is arranged on the composite layer to be a colored adhesive layer, so that the obtained reflecting film is more economical, the preparation process is simple, and the rejection rate is low.
Drawings
FIG. 1 is a schematic view showing the structure of a reflecting film for a lamp according to example 1 of the present utility model;
FIG. 2 is a schematic view showing the structure of a reflective film for a lamp according to example 2 of the present utility model;
Fig. 3 is a schematic view of the structure of example 3 of the reflection film for a lamp of the present utility model.
In the figure: 1. a bonding layer; 2. a composite layer; 10. a second adhesive layer; 11. a polyimide film; 12. a first adhesive layer; 20. a colored cell layer; 21. a transparent unit layer; 31. a first release layer; 32. and a second release layer.
Detailed Description
The following describes the embodiments of the present utility model further with reference to the drawings and examples. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not intended to limit the scope of the present utility model.
In the description of the utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the creation of the present utility model can be understood by those of ordinary skill in the art in a specific case.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The utility model discloses a reflecting film for a lamp, which comprises a bonding layer 1 and a composite layer 2, wherein the bonding layer 1 is used for being connected with a substrate, and the bonding layer 1 is provided with a first surface and a second surface; the composite layer 2 is connected to the first surface by means of a first adhesive layer 12.
In some embodiments, the lamination layer 1 is a thermoplastic polyimide film. Thermoplastic Polyimide (TPI) has excellent heat resistance, can realize the light and thin reflection film, and meets the products with higher light and thin requirements.
In some embodiments, the lamination layer 1 is a composite of a polyimide film 11 and a second adhesive layer 10, and the surface of the second adhesive layer 10 is a second surface. In order to improve the high temperature resistance, corrosion resistance and chemical resistance of the bonding layer, the second adhesive layer 10 is an epoxy resin adhesive.
In some embodiments, the composite layer 2 includes a colored unit layer 20, the composite layer 2 further includes a transparent unit layer 21, the laminated structure of the composite layer 2 is the colored unit layer 20/the transparent unit layer 21, and the transparent unit layer 21 is the outermost layer of the reflective film, that is, the colored unit layer 20 is close to and attached to the attaching layer 1.
In some embodiments, the composite layer 2 includes a colored unit layer 20, the composite layer 2 further includes a transparent unit layer 21, and the laminated structure of the composite layer 2 is the transparent unit layer 21/the colored unit layer 20/the transparent unit layer 21.
The transparent unit layer 21 is the outermost layer of the reflecting film in the laminated structure of the colored unit layer 20/transparent unit layer 21, and the colored unit layer 20 is clamped between the bonding layer 1 and the transparent unit layer 21, so that the color master batch of the colored unit layer 20 is effectively prevented from being easily precipitated under high temperature in long-term use, and the physical property and optical property of the reflecting film are reduced. In the same way, the laminated structure of the transparent unit layer 21/the colored unit layer 20/the transparent unit layer 21 also effectively prevents the color master batch of the colored unit layer 20 from being easily precipitated under high temperature in long-term use.
Wherein the material of the composite layer 2 is biaxially oriented polypropylene (BOPP) and/or polyethylene terephthalate (PET). I.e. the composite layer 2 is compounded by PET, BOPP, or PET and BOPP. In order to improve the high temperature resistance of the reflecting film, satisfy the economy, realize the frivolity of the reflecting film while guaranteeing the performance, be applicable to the products that frivolous requirement is higher, further, the lamination structure of composite layer 2 is colored unit layer 20/transparent unit layer 21. Further, the material of the composite layer 2 is PET. Further, the transparent unit layer has a layer thickness larger than that of the colored unit layer. In the preparation of the composite layer, the raw materials of the colored unit layer 20 comprise 1-5% of colored master batch and 95-99% of optical grade polyester chips; the transparent unit layer 21 is made of optical polyester chips.
In some embodiments, the first adhesive layer 12 is a colored adhesive layer, the first adhesive layer 12 is an epoxy resin adhesive and/or an acrylic adhesive, and in the preparation of the colored adhesive layer, corresponding color master batches are added into the adhesive according to the color emitted by the light source, so that corresponding light is generated when the light is reflected out through the film with the colored adhesive layer. A white protective film is commonly used, and therefore, a white master batch is added to the raw materials of the colored adhesive layer and the colored unit layer.
In order to optimize the layer thickness of the reflective film, the layer thickness of the adhesive layer 1 is 5 to 10 μm, the layer thickness of the composite layer 2 is 8 to 15 μm, and the layer thickness of the first adhesive layer 12 is 3 to 5 μm.
The second surface of the laminating layer 1 is provided with a first release layer 31, and the surface of the transparent unit layer 21 of the composite layer 2 is provided with a second release layer 32. Wherein, the material of the first release layer 31 and the second release layer 32 is PET release film, and the thickness of both release films is 100-150 μm.
In embodiment 1, as shown in fig. 1, the reflective film includes a bonding layer 1 and a composite layer 2, the composite layer 2 is connected to a first surface of the bonding layer 1 through a first adhesive layer 12, the bonding layer 1 is a polyimide film 11 and a second adhesive layer 10 are compounded, a surface of the second adhesive layer 10 is a second surface, a lamination structure of the composite layer 2 is a colored unit layer 20/a transparent unit layer 21, the transparent unit layer 21 is an outermost layer of the reflective film, and a material of the composite layer 2 is PET. The second surface of the laminating layer 1 is provided with a first release layer 31, and the surface of the transparent unit layer 21 of the composite layer 2 is provided with a second release layer 32.
In example 2, as shown in fig. 2, based on example 1, the difference is that the composite layer 2 is a single transparent unit layer 21, and the first adhesive layer 12 is a colored adhesive layer. The other layers are unchanged.
In example 3, as shown in fig. 3, the difference is that the laminated structure of the composite layer 2 is transparent cell layer 21/colored cell layer 20/transparent cell layer 21, and the other layers are unchanged, based on example 1.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.
Claims (7)
1. A reflective film for a lamp, comprising:
A bonding layer (1) for connecting with a substrate, having a first surface and a second surface;
The composite layer (2) is connected with the first surface through a first adhesive layer (12);
The bonding layer (1) is a thermoplastic polyimide adhesive film or is formed by compounding a polyimide film (11) and a second adhesive layer (10), and the surface of the second adhesive layer (10) is a second surface;
the composite layer (2) comprises at least one colored unit layer (20) and/or the first adhesive layer (12) is a colored adhesive layer;
the composite layer (2) is made of biaxially oriented polypropylene and/or polyethylene terephthalate.
2. The reflective film for a lamp according to claim 1, wherein the composite layer (2) further includes a transparent unit layer (21), the laminated structure of the composite layer (2) is one of a colored unit layer (20)/transparent unit layer (21), a transparent unit layer (21)/colored unit layer (20)/transparent unit layer (21), and a colored unit layer (20)/transparent unit layer (21), the transparent unit layer being an outermost layer of the reflective film.
3. The reflective film for a lamp according to claim 2, wherein the layer thickness of the transparent unit layer (21) is greater than or equal to the layer thickness of the colored unit layer (20).
4. A reflective film for a lamp according to claim 1, characterized in that the second adhesive layer (10) is an epoxy resin glue.
5. A reflective film for a lamp according to claim 1, characterized in that the first adhesive layer (12) is an epoxy glue and/or an acrylic glue.
6. The reflective film for a lamp according to claim 1, wherein the layer thickness of the bonding layer (1) is 5 to 10 μm, the layer thickness of the composite layer (2) is 8 to 15 μm, and the layer thickness of the first adhesive layer (12) is 3 to 5 μm.
7. The reflective film for a lamp according to claim 2, wherein a first release layer (31) is provided on the second surface of the bonding layer (1), and a second release layer (32) is provided on the surface of the transparent unit layer (21) of the composite layer (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322090734.0U CN220961907U (en) | 2023-08-04 | 2023-08-04 | Reflection film for lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322090734.0U CN220961907U (en) | 2023-08-04 | 2023-08-04 | Reflection film for lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220961907U true CN220961907U (en) | 2024-05-14 |
Family
ID=90974787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322090734.0U Active CN220961907U (en) | 2023-08-04 | 2023-08-04 | Reflection film for lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220961907U (en) |
-
2023
- 2023-08-04 CN CN202322090734.0U patent/CN220961907U/en active Active
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