Anti-tearing optical film
Technical Field
The utility model relates to the technical field of optical films, in particular to an anti-tearing optical film.
Background
The optical film refers to a film of one or more dielectric or metal or a combination of the two films coated or coated on an optical element or a separate substrate to change the transmission characteristics of light waves, including light projection, reflection, absorption, scattering, polarization, phase change, etc. The light with different polarization planes can have different characteristics by modulating the transmittance and the reflectivity of the surfaces with different wave bands. According to functions, the optical film can be divided into a reflective film, a polarizer, a diffusion film, a brightness enhancement film, a light filter and the like, is widely applied to devices such as an electronic display screen, a flat panel television and the like in the electronic industry to provide clearer and brighter image effects, and can also be used for manufacturing solar cells, lasers, photoelectric devices and the like, is used for anti-dazzle mirrors, rearview mirrors, window glass, automobile headlamps and the like in the automobile industry to improve driving safety, can be used for windows, glass curtain walls, roofs and the like to control indoor temperature, insulate heat, block transmission of ultraviolet rays, visible light and the like in the building industry, and is used for manufacturing optical fibers, optical filters, optical devices and the like in the communication industry to improve data transmission speed, wherein anti-tearing is an important function of the optical film.
For example, chinese patent publication No. CN206020703U, "an optical film", includes a first optical film and a second optical film, the first optical film including a substrate layer, a prism layer, and an adhesive layer, the prism layer including a plurality of prism structures, at least one of the prism structures having a first peak ridge and a second peak ridge, the first peak ridge and the second peak ridge forming a groove; the adhesive layer fills the trench; the first optical film is adhered to the second optical film through an adhesive layer, the adhesive layer is equal in height to the first peak ridge and the second peak ridge or protrudes out of a connecting line plane of the first peak ridge and the second peak ridge, the refractive index of a material of the prism structure is n1, the n1 is 1.47-1.67, the n2 is 1.35-1.62, the prism layer comprises a first prism structure and a second prism structure, the first prism structure is provided with the first peak ridge and the second peak ridge, the second prism structure is provided with a single peak ridge, any second prism structure is arranged between the first prism structure and the second prism structure alternately, the distance between the first peak ridge and the second peak ridge is 5-15 microns, preferably 7-10 microns, the depth of the groove is 2-10 microns, preferably 5-8 microns, the adhesive layer is selected from a pressure-sensitive adhesive, a heat-curable adhesive, a UV/heat-curable adhesive, a combination adhesive, an optical adhesive, a room-temperature-curable adhesive, or a transparent film, a diffusion film and a transparent film are arranged on the side of the diffusion film, and the diffusion film is further provided with the transparent film.
Although the above prior art can realize the use of the optical film, in actual use, on one hand, the optical film is easy to be damaged, and is directly exposed in the operation environment in the use process of the optical film, so that the situation that the optical film is easy to be torn is caused, thereby reducing the service life of the optical film, and on the other hand, the direct use of the optical film has poor electrostatic protection property, the optical film may generate static electricity due to friction and other reasons in the use process, and the spark generated by electrostatic discharge may damage the performance of the optical film, so that the prior requirements are not satisfied.
Disclosure of utility model
The utility model aims to provide an anti-tearing optical film, which solves the problems that the optical film proposed in the background art is easy to damage and the electrostatic protection performance of the optical film is poor when the optical film is directly used.
In order to achieve the above purpose, the utility model provides a tearing-proof optical film, which comprises a base layer and further comprises:
the functional layers are arranged at the upper end and the lower end of the base layer, and the functional layers are connected with the base layer through hot pressing;
The protective layer is arranged outside the functional layer, the protective layer is connected with the functional layer through hot pressing, and an anti-tearing layer is arranged at the middle position inside the protective layer.
Preferably, the upper end of the anti-tearing layer is provided with a wear-resistant layer, and the wear-resistant layer is connected with the anti-tearing layer through hot pressing.
Preferably, the lower end of the anti-tearing layer is provided with an anti-bending layer, and the anti-bending layer is connected with the anti-tearing layer through hot pressing.
Preferably, a light-transmitting layer is disposed at a middle position inside the functional layer.
Preferably, an antistatic layer is arranged at the upper end of the light-transmitting layer, and the antistatic layer is connected with the light-transmitting layer through hot pressing.
Preferably, the lower end of the light-transmitting layer is provided with a blue light prevention layer, and the blue light prevention layer is connected with the light-transmitting layer through hot pressing.
Preferably, the anti-tearing layer is internally provided with anti-tearing fibers, and the anti-tearing fibers are obliquely and alternately woven.
Compared with the prior art, the utility model has the beneficial effects that:
1. According to the utility model, the protective layer is arranged on the surface layer of the optical film, the optical film can protect the surface layer of the optical film from scratch in the daily use process through the wear-resistant layer on the outermost layer, scratch formed on the surface layer of the optical film is avoided, so that the light transmittance of the optical film is prevented from being reduced, the optical film can resist external pulling through the anti-tearing layer, the risk that the optical film is torn under the action of external force in the use or transportation process is reduced, the service life of the optical film is prolonged, the anti-bending capability of the optical film can be improved through the anti-bending layer arranged at last, the optical film can be kept flat under the action of external force after being used and fixed, and the situations of image distortion, uneven brightness and the like of display equipment caused by bending are avoided.
2. The utility model can increase the functionality of the optical film by arranging the functional layer, can improve the antistatic performance of the optical film by the antistatic layer in the use process of the optical film, can prevent static generated by friction from damaging the optical film and can reduce dust adhesion generated by static, thereby improving the light transmittance of the optical film, and can improve the light transmittance of the optical film by the light transmission layer, thereby enabling the image on the display device to be clearer and brighter.
3. The anti-tearing fiber is arranged, so that the ductility of the optical film can be improved, and the anti-tearing layer has higher strength and flexibility and has anti-tearing performance compared with plain weave through alternate oblique weaving of the anti-tearing fiber, so that the anti-tearing performance of the optical film is improved.
Drawings
FIG. 1 is an exploded view of the internal structure of the present utility model;
FIG. 2 is an enlarged view of a portion of the protective layer structure of the present utility model;
FIG. 3 is a partial enlarged view of the functional layer structure of the present utility model;
FIG. 4 is a schematic diagram of the woven structure of the tear resistant layer of the present utility model.
In the figure, 1, a base layer, 2, a functional layer, 3, a protective layer, 201, an antistatic layer, 202, a light-transmitting layer, 203, a blue light-proof layer, 301, a wear-resistant layer, 302, an anti-tearing layer, 303, an anti-bending layer and 4, and anti-cracking fibers.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1-4, in one embodiment, the present utility model provides a tear-resistant optical film, which includes a base layer 1, and further includes:
the functional layer 2 is arranged at the upper end and the lower end of the base layer 1, and the functional layer 2 is connected with the base layer 1 through hot pressing;
The protective layer 3 is arranged outside the functional layer 2, the protective layer 3 is connected with the functional layer 2 through hot pressing, the anti-tearing layer 302 is arranged at the middle position inside the protective layer 3, and anti-tearing fibers 4 are arranged inside the anti-tearing layer 302 for filling.
During use, the optical film protects the surface layer of the optical film from scratch and scratch in the daily use process through the wear-resistant layer 301 on the outermost layer, so that scratch and scratch are prevented from forming on the surface layer of the optical film, the light transmittance of the optical film is prevented from being reduced, the optical film can resist external pulling through the anti-tearing layer 302, the risk that the optical film is torn under the action of external force in the use or transportation process is reduced, the service life of the optical film is prolonged, the anti-bending capability of the optical film can be improved through the anti-bending layer 303 finally arranged, the optical film can be kept flat under the action of external force after the optical film is used and fixed, and accordingly the situations of image distortion, uneven brightness and the like of display equipment due to the fact that the optical performance of the optical film is reduced due to bending are avoided.
Referring to fig. 2, an abrasion-resistant layer 301 is disposed at an upper end of the anti-tearing layer 302, and the abrasion-resistant layer 301 is connected with the anti-tearing layer 302 by hot pressing, wherein the abrasion-resistant layer 301 is made of glass fiber, so that scratch on a surface layer of the optical film is avoided through the abrasion-resistant layer 301.
Referring to fig. 2, an anti-bending layer 303 is disposed at a lower end of the anti-tearing layer 302, and the anti-bending layer 303 is connected with the anti-tearing layer 302 by hot pressing, wherein the anti-bending layer 303 is an ethylene-polytetrafluoroethylene copolymer coating, so as to facilitate improving anti-bending capability of the optical film through the anti-bending layer 303.
Referring to fig. 1 and 3, a light-transmitting layer 202 is disposed at a middle position inside the functional layer 2, so that the light-transmitting amount of the optical film is increased by the light-transmitting layer 202, wherein the light-transmitting layer 202 is filled with graphene, so that an image on the display device is clearer and brighter.
Referring to fig. 3, an anti-static layer 201 is disposed on the upper end of the light-transmitting layer 202, and the anti-static layer 201 is connected with the light-transmitting layer 202 by hot pressing, wherein the anti-static layer 201 is made of epoxy resin, so that damage to the optical film caused by static electricity generated by friction can be prevented by the anti-static layer 201, and meanwhile dust adhesion caused by static electricity can be reduced.
Referring to fig. 3, a blue light preventing layer 203 is disposed at a lower end of the light transmitting layer 202, and the blue light preventing layer 203 is connected with the light transmitting layer 202 by hot pressing, wherein the blue light preventing layer 203 is a blue light resistant coating, so as to facilitate improving color reproducibility and contrast of a picture through the blue light preventing layer 203.
Referring to fig. 1 and 4, the anti-tear layer 302 is internally provided with anti-tear fibers 4, and the anti-tear fibers 4 are alternately woven in an oblique direction, so that the anti-tear layer 302 has better toughness through the alternate oblique weaving of the anti-tear fibers 4.
The working principle is that the antistatic performance of the optical film can be improved through the antistatic layer 201 in the use process of the optical film, the damage to the optical film caused by static generated by friction can be prevented, meanwhile, the dust adhesion generated by static can be reduced, so that the light transmittance of the optical film is improved, the light transmittance of the optical film can be improved through the light transmission layer 202, the image on the display device is clearer and brighter, the color reduction degree and the contrast of the image can be improved through the finally arranged blue light prevention layer 203, the image is clearer and more natural, the tear prevention layer 302 has higher strength and flexibility through alternate oblique weaving of the anti-cracking fiber 4, and has better tear resistance compared with plain weaving, so that the tear resistance of the optical film is improved.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.