CN214041784U - Friction-resistant light diffusion film - Google Patents
Friction-resistant light diffusion film Download PDFInfo
- Publication number
- CN214041784U CN214041784U CN202023215050.1U CN202023215050U CN214041784U CN 214041784 U CN214041784 U CN 214041784U CN 202023215050 U CN202023215050 U CN 202023215050U CN 214041784 U CN214041784 U CN 214041784U
- Authority
- CN
- China
- Prior art keywords
- layer
- light diffusion
- microsoft
- pet substrate
- resin coating
- 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
Abstract
The utility model discloses a antifriction light diffusion membrane, including the PET substrate layer, PET substrate layer upper surface is equipped with the light diffusion layer, PET substrate layer lower surface is equipped with the isolation layer, the isolation layer includes first resin coating and a plurality of microsoft particle, first resin coating adopts the coating mode to fix at PET substrate layer lower surface, microsoft particle inlays in first resin coating surface, microsoft particle makes isolation layer surface form unevenness's plane, PET substrate layer one side is kept away from to the isolation layer is equipped with the anti friction layer, the anti friction layer covers in the first resin coating and the microsoft particle surface of isolation layer. The utility model provides a antifriction light diffusion barrier film makes the particle on light diffusion barrier film surface can obtain better ground protection to reduce the coefficient of friction of light diffusion barrier film, improve the antifriction performance of light diffusion barrier film.
Description
Technical Field
The utility model relates to a light diffusion membrane technical field especially relates to a antifriction light diffusion membrane.
Background
The diffusion film is mainly used for a backlight source part of an LCD module, mainly plays a role of correcting a diffusion angle in a backlight source structure, can increase a light radiation area, but reduces light intensity of a unit area, namely luminance. After being diffused by the diffusion material, the luminous light source can be changed into a 2-time light source with larger area, better uniformity and stable chromaticity. The light scattering plate has the function of diffusing light, namely, the light can be scattered on the surface of the light scattering plate, and the light can be diffused out softly and uniformly; the basic structure of most diffuser films is to coat the transparent substrate, such as PET, with optically diffusing particles on both sides.
The diffusion barrier mainly used cell-phone backlight through the scattering effect of diffusion barrier, reaches the even of luminance in a poor light, divide into 3 layers through optical diffusion, and the first layer is the light diffusion layer, and the second floor is the PET substrate layer, and the third layer is the isolation layer, in order to improve the anti-scratch effect of isolation layer particle, can choose the PA that coefficient of friction is lower promptly the nylon particle for use, even the teflon particle. Because the surface friction coefficient of the particles is low, the bonding firmness is relatively poor when the glue is cured, and the particles are easy to fall off and damage in the using process, so that the light diffusion film does not have good friction resistance.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a antifriction light diffusion barrier film makes the particle on light diffusion barrier film surface can obtain better ground protection to reduce the coefficient of friction of light diffusion barrier film, improve the antifriction performance of light diffusion barrier film.
The utility model discloses a technical scheme that antifriction light diffusion barrier adopted is:
the utility model provides a antifriction light diffusion membrane, includes the PET substrate layer, PET substrate layer upper surface is equipped with the light diffusion layer, PET substrate layer lower surface is equipped with the isolation layer, the isolation layer includes first resin coating and a plurality of Microsoft particle, first resin coating adopts the coating mode to fix at PET substrate layer lower surface, Microsoft particle inlays in first resin coating surface, Microsoft particle makes the isolation layer surface form unevenness's plane, PET substrate layer one side is kept away from to the isolation layer is equipped with the antifriction layer, the antifriction layer covers in the first resin coating and the Microsoft particle surface of isolation layer.
Preferably, the light diffusion layer comprises a second resin coating and a plurality of diffusion particles, the second resin coating is fixed on the upper surface of the PET base material in a coating mode, and the diffusion particles are embedded in the surface of the second resin coating.
Preferably, the thickness of the PET base material layer is 38-100 μm, the thickness of the light diffusion layer is 9-11 μm, the thickness of the isolation layer is 8-10 μm, and the thickness of the anti-friction layer is 1-2 um.
Preferably, the microsoft particles are PBMA microspheres.
The utility model discloses a beneficial effect of antifriction light diffusion barrier is: be equipped with the light diffusion layer at PET substrate layer upper surface, play the effect of light diffusion through the light diffusion layer, be equipped with the isolation layer below the PET substrate layer, the isolation layer mainly plays spaced effect, prevent that antifriction light diffusion membrane from forming the condition of pasting and covering the interference with PC, and still be equipped with anti friction layer on the isolation layer surface, anti friction layer covers in the first resin coating and the microsoft particle surface of isolation layer, anti friction layer mainly reduces light diffusion membrane coefficient of surface friction, it is more smooth to make light diffusion membrane surface, the effect of difficult fish tail light guide plate simultaneously, and can also protect the microsoft particle on the isolation layer, avoid taking place to drop between microsoft particle and the first resin coating, thereby the microsoft particle that makes antifriction light diffusion membrane isolation layer surface obtains better protection.
Drawings
Fig. 1 is a schematic structural view of the friction-resistant light diffusion film of the present invention.
Detailed Description
The invention will be further elucidated and described with reference to the following embodiments and drawings in which:
referring to fig. 1, a friction-resistant light diffusion film includes a PET substrate layer 10, a light diffusion layer 20 disposed on an upper surface of the PET substrate layer 10, and an isolation layer 30 disposed on a lower surface of the PET substrate layer 10.
The isolation layer 30 comprises a first resin coating 31 and a plurality of microsoft particles 32, wherein the first resin coating 31 is fixed on the lower surface of the PET substrate layer 10 in a coating mode, the microsoft particles 32 are embedded on the surface of the first resin coating 31, and the microsoft particles 32 enable the surface of the isolation layer 30 to form an uneven plane.
An anti-friction layer 40 is arranged on one side of the isolation layer 30, which is far away from the PET substrate layer 10, and the anti-friction layer 40 covers the surfaces of the first resin coating 31 and the Microsoft particles 32 of the isolation layer 30.
The upper surface of the PET base material layer 10 is provided with a light diffusion layer 20, and the light diffusion layer 20 plays a role in light diffusion; an isolation layer 30 is arranged below the PET base material layer 10, and the isolation layer 30 mainly plays a role in spacing and prevents the friction-resistant light diffusion film from being attached to the PC to interfere with the PC.
And the surface of the isolation layer 30 is also provided with an anti-friction layer 40, the anti-friction layer 40 covers the surfaces of the first resin coating 31 and the microsoft particles 32 of the isolation layer 30, and the anti-friction layer 40 mainly reduces the surface friction coefficient of the light diffusion film, so that the surface of the light diffusion film is smoother, and the light guide plate is not easy to scratch. The microsoft particles 32 on the isolation layer 30 can be protected, and the microsoft particles 32 and the first resin coating 31 are prevented from falling off, so that the microsoft particles 32 on the surface of the friction-resistant light diffusion film isolation layer 30 are well protected.
The light diffusion layer 20 comprises a second resin coating 21 and a plurality of diffusion particles 22, the second resin coating 21 is fixed on the upper surface of the PET base material by adopting a coating mode, and the diffusion particles 22 are embedded in the surface of the second resin coating 21. The diffusion particles 22 are fixed by the second resin coating layer 21, so that the diffusion particles 22 are prevented from loosening, and the upper surface of the PET substrate layer 10 can be protected by the second resin coating layer 21.
In the scheme, the thickness of the PET substrate layer 10 is 38-100 μm, the thickness of the light diffusion layer 20 is 9-11 μm, the thickness of the isolation layer 30 is 8-10 μm, and the thickness of the anti-friction layer 40 is 1-2 um. People can select the PET substrate layer 10 with different thicknesses according to different backlight sources to carry out coating treatment, thereby forming optical diffusion films with different thicknesses, and the optical diffusion films are applied to different backlight sources, and the thicknesses of the light diffusion layer 20, the isolation layer 30 and the anti-friction layer 40 can be controlled, so that the phenomenon that the use is influenced due to the overlarge thickness of the anti-friction light diffusion film is avoided.
The microsoft particle 32 adopts the PBMA microsphere, and the PBMA microsphere has better elasticity, thereby having the anti-compression effect.
A preparation method of a friction-resistant light diffusion film comprises the following steps:
firstly, preparing a coating, namely preparing a light diffusion layer coating, an isolation layer coating and an anti-friction layer coating in advance; thereby facilitating subsequent multiple different coating treatments of the PET substrate layer.
And secondly, coating the light diffusion layer, namely coating the light diffusion layer paint prepared in the first step on the upper surface of the PET substrate layer.
And thirdly, drying the light diffusion layer, and drying the upper surface of the PET substrate layer coated in the second step to cure the light diffusion layer coating on the upper surface of the PET substrate layer. Thereby forming a light diffusion layer on the upper surface of the PET base material layer.
And fourthly, coating the isolation layer, and coating the isolation layer coating prepared in the first step on the lower surface of the PET substrate layer.
And fifthly, drying the isolation layer, and drying the lower surface of the PET substrate layer coated in the fourth step to cure the isolation layer coating on the lower surface of the PET substrate layer.
And sixthly, coating the anti-friction layer, namely coating the anti-friction layer coating prepared in the first step on the surface of the isolation layer formed by curing in the fifth step.
And seventhly, drying the anti-friction layer coating coated in the sixth step to form an anti-friction layer on the surface of the isolation layer, and protecting the isolation layer by using the anti-friction layer.
And eighthly, detecting the finished product dried in the seventh step to obtain the finished product meeting the detection requirement, namely the formed friction-resistant light diffusion film.
In the actual production and processing process, the sequential coating sequence of the upper surface and the lower surface of the PET substrate layer does not influence the final coating effect, and the sequential coating sequence can be adjusted according to the actual production requirement.
In addition, in the whole coating process, automatic coating equipment can be adopted for coating treatment, so that the coating efficiency is improved, the labor is reduced, and the product quality is improved.
Wherein the weight percentage of the raw materials of the light diffusion layer coating is 100 percent of hydroxyl acrylic resin, 20-25 percent of ethyl acetate, 10-20 percent of butyl acetate, 5-10 percent of PMMA, and 1-3 percent of curing agent. Mixing PMMA particles with a diluent, dispersing by using a high-speed dispersing machine, adding hydroxyl acrylic resin, continuously dispersing by using a high-speed dispersing agent, finally adding a curing agent, and dispersing by using the high-speed dispersing agent to finish the coating preparation process of the coating diffusion layer.
The light diffusion film has excellent light diffusion function, high optical brightness, good haze and light transmittance, high aging resistance and stable quality. The PMMA particles are mainly used for light diffusion, the acrylic resin is used for fixing the PMMA particles, and the diluent is mainly used for controlling the viscosity and the solid content.
The weight percentage of the raw materials of the isolating layer coating is that acrylic resin 100, ethyl acetate 40-50, PBMA particle resin 25-35 and curing agent 1-3, PBMA particles and diluent are dispersed by using a high-speed dispersion machine, then acrylic resin is added for continuous dispersion, finally the curing agent is added for continuous dispersion for 10 minutes, and the coating preparation process of the isolating layer is completed. The particles required by the isolation layer have certain elasticity, and the soft particle PBMA microspheres can be better elastically deformed by selecting the material of the particles, so that the light guide plate is prevented from being crushed.
The anti-friction layer coating comprises a main agent and a curing agent, wherein the mass percentage of the main agent to the curing agent is 8-10: 1; the main agent comprises the following components in percentage by weight: 55-60% of tetrafluoro resin, 1-3% of film forming additive, 25-32% of filler and 5-19% of solvent; the curing agent of (1) comprises: and (3) adding the tetrafluoro resin, the film-forming assistant, the filler and the solvent into the high-speed dispersion machine for dispersion, and then adding the curing agent into the high-speed dispersion machine for continuous dispersion for 10 minutes to finish the preparation process of the coating for coating the anti-friction layer.
And the tetrafluoro resin is vinyl tetrafluoro resin, and the fluororesin is a thermoplastic resin containing fluorine atoms in an edited molecular structure. Has the characteristics of excellent high and low temperature resistance, dielectric property, chemical stability, weather resistance, incombustibility, non-adhesiveness, low friction coefficient and the like. By utilizing the non-adhesiveness and the low friction coefficient of the fluororesin, the product is smoother as the friction coefficient is lower, and the PC board is not easy to scratch.
Above-mentioned drying process adopts many gradients drying process, including 6 sections stoving casees, adopts different temperatures to carry out many gradients drying process. The temperature range of the drying box is that the temperature of the drying box in section 1 is 40-60 ℃, the temperature of the drying box in section 2 is 60-90 ℃, the temperature of the drying box in section 3 is 70-90 ℃, the temperature of the drying box in section 4 is 90-110 ℃, the temperature of the drying box in section 5 is 70-90 ℃, and the temperature of the drying box in section 6 is 30-50 ℃. Thereby enabling better curing of different coatings.
The coated finished product is subjected to haze and light transmittance tests, hundred-grid adhesion tests, friction resistance tests, compression resistance tests, pencil hardness tests, aging resistance tests, environment RA tests, yellowing resistance tests and the like, and the finished product with good quality can be used or sold.
The following table shows the comparison of the friction coefficient after the friction resistant layer is adopted in the scheme
| Serial number | Isolation layer particle material | Coefficient of dynamic friction | Coefficient of static friction | Remarks for note |
| 1 | PMMA | 0.288 | 0.180 | Rubbing against PC board |
| 2 | PU | 0.293 | 0.193 | Rubbing against PC board |
| 3 | PA | 0.247 | 0.157 | Rubbing against PC board |
| 4 | This scheme | 0.153 | 0.102 | Rubbing against PC board |
Thereby reducing the friction coefficient of the light diffusion film and improving the friction resistance of the light diffusion film.
The utility model provides a antifriction light diffusion membrane, be equipped with the light diffusion layer at PET substrate layer upper surface, play the effect of light diffusion through the light diffusion layer, be equipped with the isolation layer below the PET substrate layer, the isolation layer mainly plays spaced effect, prevent that antifriction light diffusion membrane from forming with PC and paste the condition of covering the interference, and still be equipped with anti friction layer on the isolation layer surface, anti friction layer covers in the first resin coating and the microsoft particle surface of isolation layer, anti friction layer mainly reduces light diffusion membrane coefficient of surface friction, it is more smooth to make light diffusion membrane surface, the effect of difficult fish tail light guide plate simultaneously, and can also protect the microsoft particle on the isolation layer, avoid taking place to drop between microsoft particle and the first resin coating, thereby the microsoft particle that makes antifriction light diffusion membrane isolation layer surface obtains better protection.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (4)
1. The utility model provides a antifriction light diffusion membrane, its characterized in that, includes the PET substrate layer, PET substrate layer upper surface is equipped with the light diffusion layer, PET substrate layer lower surface is equipped with the isolation layer, the isolation layer includes first resin coating and a plurality of Microsoft particle, first resin coating adopts the coating mode to fix at PET substrate layer lower surface, Microsoft particle inlays in first resin coating surface, Microsoft particle makes isolation layer surface form unevenness's plane, PET substrate layer one side is kept away from to the isolation layer is equipped with the antifriction layer, the antifriction layer covers in the first resin coating and the Microsoft particle surface of isolation layer.
2. The abrasion-resistant light diffusion film according to claim 1, wherein the light diffusion layer comprises a second resin coating layer and a plurality of diffusion particles, the second resin coating layer is fixed on the upper surface of the PET base material by coating, and the diffusion particles are embedded in the surface of the second resin coating layer.
3. The abrasion-resistant light diffusion film according to claim 2, wherein the thickness of the PET base layer is 38 to 100 μm, the thickness of the light diffusion layer is 9 to 11 μm, the thickness of the spacer layer is 8 to 10 μm, and the thickness of the anti-friction layer is 1 to 2 μm.
4. The abrasion-resistant light diffusion film of claim 1, wherein the microsoft particles are PBMA microspheres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023215050.1U CN214041784U (en) | 2020-12-28 | 2020-12-28 | Friction-resistant light diffusion film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023215050.1U CN214041784U (en) | 2020-12-28 | 2020-12-28 | Friction-resistant light diffusion film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214041784U true CN214041784U (en) | 2021-08-24 |
Family
ID=77343822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023215050.1U Active CN214041784U (en) | 2020-12-28 | 2020-12-28 | Friction-resistant light diffusion film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214041784U (en) |
-
2020
- 2020-12-28 CN CN202023215050.1U patent/CN214041784U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100338692C (en) | Transparent conductive laminate film, touch panel having this transparent conductive laminate film, and production method for this transparent conductive laminate film | |
| CN103345012B (en) | Brightening diffusion film and preparation method thereof | |
| KR20090093867A (en) | Brightness enhancement reflective film | |
| CN101680972B (en) | Antidazzle, light-transmitting hard coat film | |
| CN1918252A (en) | Coating material, preparation of optical film, optical film, polarizing plate and image display device | |
| CN108027461B (en) | Low-flash matte coating and preparation method thereof | |
| CN104459842A (en) | Optical composite membrane and manufacturing method of optical composite membrane | |
| KR100886027B1 (en) | Antistatic light diffusion film | |
| CN112882142A (en) | Friction-resistant light diffusion film and manufacturing method thereof | |
| JP2008151996A (en) | Laminated plastic film for optical filter | |
| KR20160049168A (en) | Uv curing type matt paint composition, a decoration sheet applied the same and methods for manufacturing the decoration sheet | |
| CN102681053B (en) | Photoelectric diffusion film and process for manufacturing same | |
| CN214041784U (en) | Friction-resistant light diffusion film | |
| CN106908880A (en) | A kind of diffusing reflection reflectance coating high and preparation method thereof | |
| CN109575721B (en) | High-reliability antistatic silver reflective film | |
| JP2019006086A (en) | Decorative molded article, manufacturing method of decorative molded article, transfer sheet and display device | |
| KR100963248B1 (en) | Method for producing anti-glare film | |
| TW201413295A (en) | Anti-glare film, polarizing plate and display device | |
| CN104641171B (en) | Optical reflector and optical reflectance coating and sheet material | |
| JPH10128899A (en) | Film for preventing glass scattering having light diffusing function | |
| KR20160150335A (en) | Anti-reflection film with excellent adhesive power | |
| KR20100036871A (en) | Optical film for led | |
| KR102208205B1 (en) | 2 Component type Light Diffusion Coating Agent | |
| KR20110024443A (en) | Polymer substrate having primer layer with improved adhesion and optical substrate using the same | |
| KR20110024442A (en) | Polymer substrate having primer layer having with improved adhesion and optical substrate using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |