CN211180274U - Optical diffusion film - Google Patents
Optical diffusion film Download PDFInfo
- Publication number
- CN211180274U CN211180274U CN201922394940.4U CN201922394940U CN211180274U CN 211180274 U CN211180274 U CN 211180274U CN 201922394940 U CN201922394940 U CN 201922394940U CN 211180274 U CN211180274 U CN 211180274U
- Authority
- CN
- China
- Prior art keywords
- diffusion
- layer
- particles
- quantum dot
- optical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Laminated Bodies (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
The utility model discloses an optical diffusion film, which is provided with a first diffusion layer, a second diffusion layer, an ultraviolet blocking layer, a first quantum dot layer, a third diffusion layer, a second quantum dot layer and a hydrophobic dustproof layer from top to bottom in sequence, and the coatings are adhered and laminated with each other; the first diffusion layer, the second diffusion layer and the third diffusion layer are all polyacrylic resin layers; the first quantum dot layer and the second quantum dot layer are both PET films with quantum dots arranged inside; the hydrophobic dustproof layer is a nylon layer with taper holes; the first diffusion particles are spherical particles made of siloxane resin, the second diffusion particles and the third diffusion particles are spherical particles made of silicon dioxide, and the particle diameters of the first diffusion particles, the second diffusion particles and the third diffusion particles are gradually reduced. The utility model discloses an add quantum dot layer between the multilayer diffusion layer, utilize quantum dot's increase light intensity effect to increase the luminance of diffusion barrier.
Description
Technical Field
The utility model relates to an optical film technical field, concretely relates to optical diffusion barrier.
Background
The diffusion film is mainly used for a backlight source part of an L CD module, light penetrates through a diffusion layer with PET as a base material and passes through a medium with a refractive index different from that of the base material, so that the light is subjected to a plurality of refraction, reflection and scattering phenomena, the light can be corrected into a uniform surface light source to achieve an optical diffusion effect, the diffusion film mainly plays a role in correcting a diffusion angle in a backlight source structure, the light radiation area is increased, but the haze is larger, the light intensity of a unit area is reduced, and the brightness is reduced.
SUMMERY OF THE UTILITY MODEL
It is an object of the present invention to solve at least the above problems and to provide at least the advantages which will be described later.
It is still another object of the present invention to provide an optical diffusion film which increases the brightness of the diffusion film by utilizing the light intensifying effect of quantum dots by adding a quantum dot layer between a plurality of diffusion layers.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided an optical diffusion film including:
a first diffusion layer in which first diffusion particles are arranged;
the upper surface of the second diffusion layer is attached to the lower surface of the first diffusion layer, and second diffusion particles are arranged in the second diffusion layer;
a first quantum dot layer disposed below the second diffusion layer, an ultraviolet blocking layer being disposed between the second diffusion layer and the first quantum dot layer;
the upper surface of the third diffusion layer is attached to the lower surface of the first quantum dot layer, and third diffusion particles are arranged in the third diffusion layer;
the upper surface of the second quantum dot layer is attached to the lower surface of the third diffusion layer, and the lower surface of the second quantum dot layer is also provided with a hydrophobic dust-proof layer;
the first diffusion layer, the second diffusion layer and the third diffusion layer are all polyacrylic resin layers;
the first quantum dot layer and the second quantum dot layer are both PET films with quantum dots arranged inside;
the hydrophobic dustproof layer is a nylon layer with taper holes;
the first diffusion particles are spherical particles prepared from siloxane resin, the second diffusion particles and the third diffusion particles are spherical particles prepared from silicon dioxide, and the particle diameters of the first diffusion particles, the second diffusion particles and the third diffusion particles are gradually reduced.
Preferably, in the optical diffusion film, a scratch-resistant protective layer 1 is arranged on the upper surface of the first diffusion layer, and the scratch-resistant protective layer is an optical protective hardened resin film.
Preferably, in the optical diffusion film, nanoscale hydrophobic particles are arranged on the hydrophobic dust-proof layer, and the hydrophobic particles are silicon dioxide or ferroferric oxide.
Preferably, in the optical diffusion film, reflective particles of different shapes are arranged in the ultraviolet blocking layer, and the reflective particles are titanium dioxide or zinc dioxide.
Preferably, in the optical diffusion film, an ultraviolet absorber is provided in the ultraviolet blocking layer.
Preferably, in the optical diffusion film, the ultraviolet blocking layer contains a binder.
Preferably, in the optical diffusion film, the distribution density of the first diffusion particles, the second diffusion particles, and the third diffusion particles is gradually increased.
The utility model discloses at least, include following beneficial effect: the utility model utilizes the light intensifying effect of the quantum dot layer, and adds the first quantum dot layer and the second quantum dot layer in the diffusion layer, thereby effectively improving the brightness of the scattered light; the scratch-resistant protective layer prevents the first diffusion layer from being damaged by scratching of the optical diffusion film in use so as to ensure the light diffusion effect of the optical diffusion film; the ultraviolet blocking layer can effectively absorb ultraviolet rays in light rays, reduce damage of the ultraviolet rays to the optical diffusion film and prolong the service life of the optical diffusion film; four, the utility model discloses well light is in proper order through the scattering effect by the multilayer diffusion barrier, strengthens the scattering effect of optics diffusion barrier to the light gradually, increases the irradiation area of light, makes the pointolite diffusion be the line source, makes the line source diffusion be the area source.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic structural diagram of an optical diffusion film according to one embodiment of the present invention.
Wherein: 1-scratch-resistant protective layer, 2-first diffusion layer, 3-second diffusion layer, 4-ultraviolet blocking layer, 5-first quantum dot layer, 6-third diffusion layer, 7-second quantum dot layer, 8-hydrophobic dust-proof layer, 9-first diffusion particles, 10-second diffusion particles, 11-reflective particles and 12-third diffusion particles.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials, if not otherwise specified, are commercially available; in the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "disposed" are to be construed broadly, and may for example be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The terms "lateral," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
In one of the technical solutions, as shown in fig. 1, the present invention provides an optical diffusion film, including:
a first diffusion layer 2 in which first diffusion particles 9 are provided;
the upper surface of the second diffusion layer 3 is attached to the lower surface of the first diffusion layer 2, and second diffusion particles 10 are arranged in the second diffusion layer;
a first quantum dot layer 5 disposed below the second diffusion layer 3, and an ultraviolet blocking layer 4 disposed between the second diffusion layer 3 and the first quantum dot layer 5;
a third diffusion layer 6, the upper surface of which is attached to the lower surface of the first quantum dot layer 5, wherein third diffusion particles 12 are arranged in the third diffusion layer 6;
the upper surface of the second quantum dot layer 7 is attached to the lower surface of the third diffusion layer 6, and a hydrophobic dust-proof layer 8 is further arranged on the lower surface of the second quantum dot layer 7;
wherein the first diffusion layer 2, the second diffusion layer 3 and the third diffusion layer 6 are all polyacrylic resin layers;
the first quantum dot layer 5 and the second quantum dot layer 7 are both PET films with quantum dots arranged inside;
the hydrophobic dustproof layer 8 is a nylon layer with taper holes;
the first diffusion particles 9 are spherical particles made of a silicone resin, the second diffusion particles 10 and the third diffusion particles 12 are spherical particles made of silica, and the particle diameters of the first diffusion particles 9, the second diffusion particles 10 and the third diffusion particles 12 are gradually reduced.
The optical diffusion film provided by the technical scheme is characterized in that a first diffusion layer 2, a second diffusion layer 3, an ultraviolet blocking layer 4, a first quantum dot layer 5, a third diffusion layer 6, a second quantum dot layer 7 and a hydrophobic dust-proof layer 8 are sequentially arranged from top to bottom, and all the layers are adhered to each other;
the first diffusion layer 2, the second diffusion layer 3 and the third diffusion layer 6 are all polyacrylic resin layers;
the first quantum dot layer 5 and the second quantum dot layer 7 are both PET films with quantum dots arranged inside;
the hydrophobic dustproof layer 8 is a nylon layer with taper holes;
the first diffusion layer is provided with first diffusion particles, the second diffusion layer is provided with second diffusion particles, and the third diffusion layer is provided with third diffusion particles;
the first diffusion particles 9 are spherical particles made of a silicone resin, the second diffusion particles 10 and the third diffusion particles 12 are spherical particles made of silica, and the particle diameters of the first diffusion particles 9, the second diffusion particles 10 and the third diffusion particles 12 are gradually reduced. The diffusion effect that the diffusion particle size is the smaller the diffusion angle is wider the better, the utility model discloses well light is in proper order through the scattering effect by big first diffusion particle, second diffusion particle, third diffusion particle little to, but reinforcing optics diffusion barrier is to the scattering effect of light many times, effectively increases the irradiation area of light.
The utility model provides an each diffusion layer and each quantum dot layer all are that macromolecular material makes, and the ultraviolet ray can destroy macromolecular polymer material's molecular structure, makes its mechanics and optical property descend, and the ultraviolet ray in the ultraviolet barrier layer can the effective absorption light to reduce the destruction of ultraviolet ray to diffusion layer and quantum dot layer, lengthen its life.
The working principle of the optical diffusion film provided by the technical scheme is as follows: light gets into from the upper surface of preventing scraping the protective layer, diffusion particle's scattering effect in through first diffusion layer and the second diffusion layer, enlarge the irradiation area of light, the light of scattering through first diffusion layer and second diffusion layer spreads into ultraviolet barrier layer and filters into first quantum dot layer after the ultraviolet ray in the light, spread into the third diffusion layer after the intensifying effect of quantum dot in the first quantum dot layer, further enlarge the irradiation area of light under the scattering effect of third diffusion particle, then light gets into second quantum dot layer, permeate through the water transport dust layer behind the intensifying effect of quantum dot in the second quantum dot layer and wear out this optical diffusion membrane.
The utility model discloses at least, include following beneficial effect: the utility model utilizes the light intensifying effect of the quantum dot layer, and adds the first quantum dot layer and the second quantum dot layer in the diffusion layer, thereby effectively achieving the purpose of improving the brightness of the scattered light; the scratch-resistant protective layer prevents the first diffusion layer from being damaged by scratching of the optical diffusion film in use so as to ensure the light diffusion effect of the optical diffusion film; the ultraviolet blocking layer can effectively absorb ultraviolet rays in light rays, reduce damage of the ultraviolet rays to the optical diffusion film and prolong the service life of the optical diffusion film; the utility model discloses well light is in proper order through the scattering effect by multilayer diffusion barrier, strengthens the scattering effect of optics diffusion barrier to the light gradually, increases the irradiation area of light, makes the pointolite diffusion be the line source, makes the line source diffusion be the area source.
In another technical solution, as shown in fig. 1, in the optical diffusion film, a scratch-resistant protective layer 1 is disposed on an upper surface of the first diffusion layer, and the scratch-resistant protective layer is an optical protective hardened resin film. The scratch-resistant protective layer prevents the optical diffusion film from being scratched and rubbed in use to damage the first diffusion layer, and reduces the light diffusion effect of the optical diffusion film.
In another technical scheme, in the optical diffusion film, nanoscale hydrophobic particles are arranged on the hydrophobic dust-proof layer, and the hydrophobic particles are silicon dioxide or ferroferric oxide. The refraction of drop of water and the scattering effect of dust can exert an influence to the homogeneity of light luminance, and dust and moisture adhesion in the hydrophobic dust prevention layer ability effective separation air are on the optics diffusion barrier, reduce drop of water and dust and to the influence of light propagation angle, guarantee to propagate the homogeneity of light.
In another technical solution, as shown in fig. 1, in the optical diffusion film, reflective particles 11 with different shapes are disposed in the ultraviolet blocking layer, and the reflective particles are titanium dioxide or zinc dioxide. A part of light rays scattered into various angles by the second diffusion particles penetrate through the ultraviolet blocking layer and directly enter the first quantum dot layer, and a part of light rays changes the angle of the light rays which cannot directly enter the first quantum dot layer through the reflection effect of the reflective particles and then enter the first quantum dot layer, so that the utilization rate of the light rays is increased.
In another technical solution, in the optical diffusion film, an ultraviolet absorber is disposed in the ultraviolet blocking layer. The ultraviolet absorbent can effectively absorb ultraviolet rays in light, reduce damage of the ultraviolet rays to the optical diffusion film and prolong the service life of the optical diffusion film.
In another embodiment, in the optical diffusion film, the uv blocking layer contains a binder. The binder further increases the adhesion of the reflective particles to the uv blocking layer.
In another technical solution, in the optical diffusion film, distribution densities of the first diffusion particles, the second diffusion particles, and the third diffusion particles are gradually increased. The smaller the diffusion particles, the more necessary it is to increase the distribution density of the diffusion particles to improve the diffusion effect of the entire diffusion layer on light.
The number of apparatuses and the scale of the process described here are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (7)
1. An optical diffuser film, comprising:
a first diffusion layer in which first diffusion particles are arranged;
the upper surface of the second diffusion layer is attached to the lower surface of the first diffusion layer, and second diffusion particles are arranged in the second diffusion layer;
a first quantum dot layer disposed below the second diffusion layer, an ultraviolet blocking layer being disposed between the second diffusion layer and the first quantum dot layer;
the upper surface of the third diffusion layer is attached to the lower surface of the first quantum dot layer, and third diffusion particles are arranged in the third diffusion layer;
the upper surface of the second quantum dot layer is attached to the lower surface of the third diffusion layer, and the lower surface of the second quantum dot layer is also provided with a hydrophobic dust-proof layer;
the first diffusion layer, the second diffusion layer and the third diffusion layer are all polyacrylic resin layers;
the first quantum dot layer and the second quantum dot layer are both PET films with quantum dots arranged inside;
the hydrophobic dustproof layer is a nylon layer with taper holes;
the first diffusion particles are spherical particles prepared from siloxane resin, the second diffusion particles and the third diffusion particles are spherical particles prepared from silicon dioxide, and the particle diameters of the first diffusion particles, the second diffusion particles and the third diffusion particles are gradually reduced.
2. The optical diffusion film according to claim 1, wherein the first diffusion layer is provided on an upper surface thereof with a scratch-resistant protective layer, and the scratch-resistant protective layer is an optical protective hardened resin film.
3. The optical diffusion film of claim 1, wherein the hydrophobic dust layer has nanoscale hydrophobic particles disposed thereon, and the hydrophobic particles are silica or ferroferric oxide.
4. The optical diffusion film as claimed in claim 1, wherein reflective particles of different shapes are disposed in the ultraviolet blocking layer, and the reflective particles are titanium dioxide or zinc dioxide.
5. The optical diffuser film of claim 4, wherein a uv absorber is disposed within the uv blocking layer.
6. The optical diffuser film as defined in claim 4, wherein said UV blocking layer comprises a binder.
7. The optical diffusion film according to claim 1, wherein the distribution density of the first diffusion particles, the second diffusion particles, and the third diffusion particles is gradually increased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922394940.4U CN211180274U (en) | 2019-12-26 | 2019-12-26 | Optical diffusion film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922394940.4U CN211180274U (en) | 2019-12-26 | 2019-12-26 | Optical diffusion film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211180274U true CN211180274U (en) | 2020-08-04 |
Family
ID=71797466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922394940.4U Active CN211180274U (en) | 2019-12-26 | 2019-12-26 | Optical diffusion film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211180274U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114690289A (en) * | 2022-03-18 | 2022-07-01 | Tcl华星光电技术有限公司 | Optical film layer, manufacturing method thereof, polarizer and display panel |
| CN114764201A (en) * | 2021-01-15 | 2022-07-19 | 纳晶科技股份有限公司 | Light conversion device and backlight module comprising same |
-
2019
- 2019-12-26 CN CN201922394940.4U patent/CN211180274U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114764201A (en) * | 2021-01-15 | 2022-07-19 | 纳晶科技股份有限公司 | Light conversion device and backlight module comprising same |
| CN114690289A (en) * | 2022-03-18 | 2022-07-01 | Tcl华星光电技术有限公司 | Optical film layer, manufacturing method thereof, polarizer and display panel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102594424B1 (en) | Optical sheet, polarizer, optical sheet sorting method and optical sheet manufacturing method, and display device | |
| CN211180274U (en) | Optical diffusion film | |
| KR101751157B1 (en) | Anti-glare film, polarizer, liquid-crystal panel, and image display device | |
| TWI461761B (en) | Light guide panel for liquid crystal display having light diffusion material and back light unit using thereof | |
| KR20230073167A (en) | Anti reflection film, display device, method for selecting anti reflection film for display device | |
| US20160115340A1 (en) | Hard coat film and hard coat film wound body | |
| KR100955173B1 (en) | Light control film and backlight device using it | |
| TWI662300B (en) | Light diffusing sheet and backlight device including the same | |
| JP6634685B2 (en) | Image display device | |
| JP5657759B2 (en) | Window system and light guide film therein | |
| TWI702414B (en) | Optical film and display device with touch panel | |
| JP6515377B2 (en) | Touch panel, display device, optical sheet, method of sorting optical sheet, and method of manufacturing optical sheet | |
| JP2016022661A (en) | Optical laminate | |
| JP3442247B2 (en) | Light guide for surface light source element and surface light source element | |
| TWM369473U (en) | Gradient non-uniform light type backlight module | |
| KR102614320B1 (en) | Optical film for shielding thermal radiation and optical display comprising the same | |
| US20240162359A1 (en) | Backsheet of solar cell module and solar cell module including thereof | |
| JP3773129B2 (en) | Light guide for surface light source element and surface light source element | |
| JPH09304601A (en) | Optical film | |
| JP6256661B2 (en) | Daylighting member | |
| JP6880592B2 (en) | Near-infrared shielding laminates, vehicle glass and vehicles | |
| CN218158400U (en) | Anti-scraping and anti-static optical diffusion film | |
| EP4354014A1 (en) | Light guide member for illumination device, and illumination device | |
| KR102614318B1 (en) | Optical film for shielding thermal radiation and optical display comprising the same | |
| CN216052262U (en) | Light guide plate with frosted structure on surface |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |