CN206411286U - Optical reflectance coating with micro-structure - Google Patents
Optical reflectance coating with micro-structure Download PDFInfo
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- CN206411286U CN206411286U CN201621477814.5U CN201621477814U CN206411286U CN 206411286 U CN206411286 U CN 206411286U CN 201621477814 U CN201621477814 U CN 201621477814U CN 206411286 U CN206411286 U CN 206411286U
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- film
- micro
- prism film
- light
- reflectance coating
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Abstract
The utility model is related to a kind of optical reflectance coating with micro-structure, and it includes PET basement membranes（1）, in the PET basement membranes（1）On be bonded with the light guiding film with high index of refraction and light transmittance（2）, in the light guiding film（2）Surface bonding have diffusion barrier（3）, have multiple micropores on diaphragm every square centimeter, aperture is 0.01 0.03 microns, in the diffusion barrier（3）Surface be disposed with prism film（4）With lower prism film（5）, the prism film on described（4）With lower prism film（5）Surface be provided with the micro-structural that periodically continued section is triangle, and upper prism film（4）With lower prism film（5）Micro-structural above and below be mutually perpendicular to arrangement, the prism film on described（4）Surface post layer protecting film（6）.The utility model using micro-structural launch the regulation and control of light, and can change the direction of reflected light makes its positive light extraction so that can reduce thickness using the backlight module after this kind of reflectance coating, and improve reflection efficiency.
Description
Technical field
The utility model reflects technical field of membrane, and more specifically, more particularly to a kind of optics with micro-structure is anti-
Film is penetrated, in the backlight module for being mainly used in the display devices such as mobile phone, display.
Background technology
By taking the liquid crystal panel of current main flow as an example, product includes antireflection film, polaroid, view film, prismatic lens, expansion
Dissipate the optical films such as film, reflectance coating.Reflectance coating, bright enhancement film and diffusion barrier wherein in backlight module are the functional opticals of most critical
Film.The backlight module of such as one piece panel of LCD, wherein containing the optical level polyester film of eight layers of different size when most
The optical film of composition, also needs 7-8 layers of different size and the optical level polyester film of kind to be protected as release in an assembling process
Cuticula.Backlight module（BLU, Back Light Unit) it is main by light source (cold cathode fluorescent tube CCFL/ light-emittingdiodes LED
Deng), reflecting plate (Reflector), light guide plate (LGP, Light guide plate), diffusion barrier, brightness enhancement film/prismatic lens and outer
The assembling components such as frame are formed.Backlight module is really made up of blooming piece from level to level, by light source, by various in module
Function of the diaphragm material to light, realization is redistributed to luminous energy, finally light is projected with normal direction.
Because back light must use the optical thin film of reflectance coating, diffusion barrier etc., to reach light source average optical transmission
Purpose, but often produce the phenomenon of light consume.Root it was found that from traditional backlight light source come out just if 100%, pass through
After the optical thin films such as reflectance coating, diffusion barrier, the light for only having about 60% enters light polarizing film by backlight module, eventually passes liquid
Brilliant, Surface comes out only remaining 4-8% or so light.
In the panel, backlight module（About 20-30%）It is cost highest spare part.For BLU, 15 " -17 " about 20-
25%, more than 30 cun then up to more than 25%.With the arriving in large size panel epoch, its status in panel cost structure is also got over
Come more important.And its optical film also accounts for the cost of backlight module nearly 40%, hold the balance.Silver used in general backlight module is anti-
The recycling of light can be carried out by penetrating piece, but because its surface is even surface, therefore the incidence angle of light can be equal to angle of reflection, nothing
Light is effectively oriented to normal direction by method.
Utility model content
Technical problem to be solved in the utility model provides a kind of with micro-structure for above-mentioned prior art
Optical reflectance coating, using micro-structural launch the regulation and control of light, can change the direction of reflected light makes its positive light extraction so that use
Backlight module after this kind of reflectance coating can reduce thickness, and improve reflection efficiency.
The technical scheme in the invention for solving the above technical problem is：A kind of optical reflection with micro-structure
Film, it includes PET basement membranes, the light guiding film with high index of refraction and light transmittance is bonded with the PET basement membranes, is led described
The surface bonding of light film, which has, multiple micropores on diffusion barrier, diaphragm every square centimeter, aperture is 0.01-0.03 microns, in institute
The surface for stating diffusion barrier is disposed with prism film and lower prism film, and the surface of prism film and lower prism film is all provided with described
It is equipped with periodically continued section and is the micro-structural of triangle, and is mutually perpendicular to above and below the micro-structural of upper prism film and lower prism film
Arrangement, layer protecting film is posted on the surface of prism film on described.
Preferably, the diffusion barrier is made up of diffusion layer, PET intermediate layers and resist blocking and that layer.
Preferably, the angle of total reflection of the upper prism film and lower prism film surface micro-structure is 0-4 °, effective output angle
For 5-65 °, birefringence angle is 66 ° -90 °.
Compared with prior art, the utility model has the advantage of：
The utility model using micro-structural launch the regulation and control of light, and can change the direction of reflected light makes its positive light extraction,
Allow and thickness is reduced using the backlight module after this kind of reflectance coating, and improve reflection efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of reflectance coating in the utility model embodiment.
Fig. 2 is the structural representation of diffusion barrier in the utility model embodiment.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing embodiment.
It is shown in Figure 1, a kind of optical reflectance coating with micro-structure in the present embodiment, including PET basement membranes 1,
Light guiding film 2 is bonded with the PET basement membranes 1, light guiding film has the transparent membrane of high index of refraction and light transmittance, and surface has not
With the site micro-structural of density, there is diffusion barrier 3 in the surface bonding of the light guiding film 2, diffusion barrier uses sintrered nickel（Also there is use
Ceramics or polytetrafluoroethylene (PTFE)）It is made, there are several hundred million micropores on diaphragm every square centimeter, aperture is about 0.01-0.03 microns, such as
Shown in Fig. 2, the diffusion barrier 3 is made up of diffusion layer 3.1, PET intermediate layers 3.2 and resist blocking and that layer 3.3, and light is passing through diffusion layer
When, constantly it can be passed through in the different medium of 2 refractive indexes, therefore many refractions, the phenomenon of reflection and scattering will occur for light,
The effect of optics diffusion is so just caused, prism film 4 and lower prism film 5 are disposed with the surface of the diffusion barrier 3,
On described the surface of prism film 4 and lower prism film 5 be provided with periodically continued section be triangle micro-structural, and on
Arrangement, the upper prism film 4 and the lower surface micro-structure of prism film 5 are mutually perpendicular to above and below the micro-structural of prism film 4 and lower prism film 5
The angle of total reflection be 0-4 °, effective output angle be 5-65 °, birefringence angle be 66 ° -90 °, the table of prism film 4 on described
Layer protecting film 6 is posted in face, can effectively prevent the damage of outer bound pair prism film surface micro-structure.
In addition to the implementation, the utility model also includes other embodiment, all use equivalents or equivalent
The technical scheme of substitute mode formation, all should fall within the utility model scope of the claims.
Claims (3)
1. a kind of optical reflectance coating with micro-structure, it includes PET basement membranes（1）, it is characterised in that：In the PET basement membranes
（1）On be bonded with the light guiding film with high index of refraction and light transmittance（2）, in the light guiding film（2）Surface bonding have diffusion
Film（3）, have multiple micropores on diaphragm every square centimeter, aperture is 0.01-0.03 microns, in the diffusion barrier（3）Surface
It is disposed with prism film（4）With lower prism film（5）, the prism film on described（4）With lower prism film（5）Surface be respectively provided with
There are the micro-structural that periodically continued section is triangle, and upper prism film（4）With lower prism film（5）Micro-structural it is mutual up and down
It is arranged vertically, the prism film on described（4）Surface post layer protecting film（6）.
2. a kind of optical reflectance coating with micro-structure according to claim 1, it is characterised in that：The diffusion barrier
（3）By diffusion layer（3.1）, PET intermediate layers（3.2）With resist blocking and that layer（3.3）Constitute.
3. a kind of optical reflectance coating with micro-structure according to claim 1 or 2, it is characterised in that：The upper rib
Mirror film（4）With lower prism film（5）The angle of total reflection of surface micro-structure is 0-4 °, and effective output angle is 5-65 °, birefringence angle
For 66 ° -90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621477814.5U CN206411286U (en) | 2016-12-30 | 2016-12-30 | Optical reflectance coating with micro-structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621477814.5U CN206411286U (en) | 2016-12-30 | 2016-12-30 | Optical reflectance coating with micro-structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206411286U true CN206411286U (en) | 2017-08-15 |
Family
ID=59552758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621477814.5U Expired - Fee Related CN206411286U (en) | 2016-12-30 | 2016-12-30 | Optical reflectance coating with micro-structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206411286U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113189687A (en) * | 2021-05-18 | 2021-07-30 | 合肥翰博星辰高新材料有限公司 | Diffusion film, backlight module and display device |
| CN113655662A (en) * | 2021-08-26 | 2021-11-16 | 合肥工业大学 | Optical film for MiniLED backlight module and preparation method thereof |
-
2016
- 2016-12-30 CN CN201621477814.5U patent/CN206411286U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113189687A (en) * | 2021-05-18 | 2021-07-30 | 合肥翰博星辰高新材料有限公司 | Diffusion film, backlight module and display device |
| CN113655662A (en) * | 2021-08-26 | 2021-11-16 | 合肥工业大学 | Optical film for MiniLED backlight module and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170815 Termination date: 20211230 |