CN221678245U - Multilayer optical composite film - Google Patents

Abstract

The utility model discloses a multilayer optical composite film, including: a functional film, which is a supporting and mounting structure of the multilayer optical composite film; and a protective film, which is arranged on the functional film and is used to protect the multilayer optical composite film. The utility model can increase the reflectivity of the multilayer optical composite film, reduce or eliminate the reflected light of the multilayer optical composite film, reduce or eliminate the stray light, and make the light display more uniform and soft through the functional film composed of a reflective film, an anti-reflective film, a polarizer, a diffusion film and a brightness enhancement film; and can effectively isolate ultraviolet radiation and prevent the multilayer optical composite film from being scratched through the protective film composed of an ultraviolet blocking layer and an anti-scratch layer, which can fully guarantee the normal use of the multilayer optical composite film and extend the service life of the multilayer optical composite film.

Description

Multilayer optical composite film

Technical Field

The utility model relates to the technical field of optical composite films, in particular to a multi-layer optical composite film.

Background Art

Optical thin films are a type of optical dielectric material composed of thin layered media that propagate light beams through interfaces. Optical thin films have been widely used in the fields of optics and optoelectronics to manufacture various optical instruments.

The Chinese patent with publication number CN206161881U discloses a multi-layer composite optical functional film, which includes a release layer arranged on the inner side and a polyester layer arranged on the outer side, a polymer adhesive layer is arranged between the release layer and the polyester layer, and a surface coating is also arranged on the outer surface of the polyester layer away from the polymer adhesive layer; it has the advantages of no adhesive, easy adhesion, high light transmittance, etc., and can be used for glass surface decoration, material surface protection, etc. However, the above patent has the following defects:

The existing multi-layer optical composite film cannot effectively isolate ultraviolet radiation and prevent scratches when in use, resulting in poor use effect of the multi-layer optical composite film.

Utility Model Content

The purpose of the utility model is to provide a multilayer optical composite film, which can effectively isolate ultraviolet radiation and prevent the multilayer optical composite film from being scratched, fully guarantee the normal use of the multilayer optical composite film, extend the service life of the multilayer optical composite film, and solve the problems in the prior art.

In order to achieve the above purpose, the utility model provides the following technical solutions:

A multilayer optical composite film, comprising:

Functional film, which is a supporting and mounting structure for multi-layer optical composite film;

The protective film is arranged on the functional film and is used for protecting the multi-layer optical composite film.

Preferably, the functional film comprises a reflective film, an anti-reflective film and a polarizer, the anti-reflective film is arranged on the reflective film, and the polarizer is arranged on the anti-reflective film.

Preferably, the functional film further comprises a diffusion film and a brightness enhancement film, the diffusion film is arranged on the polarizer, and the brightness enhancement film is arranged on the diffusion film.

Preferably, the protective film comprises an ultraviolet blocking layer, and the ultraviolet blocking layer is arranged on the brightness enhancement film.

Preferably, the ultraviolet blocking layer is made of ultraviolet blocking material.

Preferably, the protective film further comprises an anti-scratch layer, and the anti-scratch layer is disposed on the UV blocking layer.

Compared with the prior art, the beneficial effects of the utility model are as follows:

The utility model can increase the reflectivity of the multi-layer optical composite film, reduce or eliminate the reflected light of the multi-layer optical composite film, reduce or eliminate stray light, and make the light display more uniform and soft through the functional film composed of the reflective film, the anti-reflective film, the polarizer, the diffusion film and the brightening film; the protective film composed of the ultraviolet blocking layer and the anti-scratch layer can effectively isolate ultraviolet radiation and prevent the multi-layer optical composite film from being scratched, which can fully guarantee the normal use of the multi-layer optical composite film and extend the service life of the multi-layer optical composite film.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of a multilayer optical composite film of the present invention;

FIG2 is a cross-sectional schematic diagram of a functional membrane of the present invention;

FIG. 3 is a schematic diagram of the unfolding of the protective film of the present invention.

In the figure: 1. functional film; 11. reflective film; 12. anti-reflective film; 13. polarizer; 14. diffusion film; 15. brightness enhancement film; 2. protective film; 21. UV blocking layer; 22. anti-scratch layer.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

In order to solve the technical problem that the existing multilayer optical composite film cannot effectively isolate ultraviolet radiation and prevent scratches during use, resulting in poor use effect of the multilayer optical composite film, please refer to Figures 1 to 3. This embodiment provides the following technical solutions:

A multilayer optical composite film, comprising:

Functional film 1 is a supporting and mounting structure of a multi-layer optical composite film;

The protective film 2 is disposed on the functional film 1 and is used to protect the multi-layer optical composite film.

In this embodiment, as a preferred technical solution of the utility model, the functional film 1 includes a reflective film 11 , an anti-reflective film 12 and a polarizer 13 . The anti-reflective film 12 is disposed on the reflective film 11 , and the polarizer 13 is disposed on the anti-reflective film 12 .

It should be noted that the reflective film 11 selects a metal with a large extinction coefficient and relatively stable optical properties as the metal film material. When the light beam is incident from the air to the metal surface, the amplitude of the light entering the metal decays rapidly, causing the light energy entering the metal to decrease accordingly, while the reflected light energy increases. The larger the extinction coefficient, the faster the light amplitude decays, the less light energy entering the metal, and the higher the reflectivity. Therefore, the reflectivity of the multilayer optical composite film is increased by the reflective film 11.

It should be noted that the anti-reflection film 12 reduces or eliminates the reflected light of the multi-layer optical composite film, thereby increasing the light transmittance of the multi-layer optical composite film and reducing or eliminating stray light.

It should be noted that the natural light of the multi-layer optical composite film is converted into polarized light by the polarizer 13 .

In this embodiment, as a preferred technical solution of the utility model, the functional film 1 further includes a diffusion film 14 and a brightness enhancement film 15 . The diffusion film 14 is arranged on the polarizer 13 , and the brightness enhancement film 15 is arranged on the diffusion film 14 .

It should be noted that the diffusion film 14 can cause the light to be refracted and diffracted multiple times through the diffusion film 14 , thereby playing a role in light uniformity, making the light display more uniform and soft.

It should be noted that the brightness enhancement film 15 can be used to recycle and focus light, thereby producing a brightening effect, thereby eliminating the optical coupling phenomenon and making the light display more uniform and soft.

In this embodiment, as a preferred technical solution of the utility model, the protective film 2 includes an ultraviolet blocking layer 21 , and the ultraviolet blocking layer 21 is disposed on the brightness enhancement film 15 .

It should be noted that the ultraviolet blocking layer 21 is made of ultraviolet blocking material, wherein the ultraviolet blocking material is a salicylate compound, a benzophenone compound or an aliphatic polyol compound.

It should be noted that the ultraviolet blocking layer 21 can effectively isolate ultraviolet radiation, fully guarantee the normal use of the multilayer optical composite film, and extend the service life of the multilayer optical composite film.

In this embodiment, as a preferred technical solution of the utility model, the protective film 2 further includes an anti-scratch layer 22 , and the anti-scratch layer 22 is disposed on the ultraviolet blocking layer 21 .

It should be noted that the anti-scratch layer 22 is a scratch-resistant protective film composed of a transparent optical polyester film coated with a special protective glue, a transparent polyester film release film, and a transparent polyester film protective film bonded to the hardened surface. The anti-scratch layer 22 can effectively prevent the multi-layer optical composite film from being scratched, fully guarantee the normal use of the multi-layer optical composite film, and extend the service life of the multi-layer optical composite film.

Working principle: the reflectivity of the multilayer optical composite film is increased by the reflective film 11, and the reflected light of the multilayer optical composite film is reduced or eliminated by the anti-reflective film 12, thereby increasing the light transmittance of the multilayer optical composite film and reducing or eliminating stray light. The natural light of the multilayer optical composite film is converted into polarized light by the polarizer 13. The light can be refracted and diffracted multiple times by the diffusion film 14, thereby playing a role of light uniformity, making the light display more uniform and soft. The light can be recycled and focused by the brightness enhancement film 15 to produce a brightening effect, thereby eliminating the light coupling phenomenon and making the light display more uniform and soft. The ultraviolet blocking layer 21 can effectively isolate ultraviolet radiation, fully guarantee the normal use of the multilayer optical composite film, and extend the service life of the multilayer optical composite film. The anti-scratch layer 22 can effectively prevent the multilayer optical composite film from being scratched, fully guarantee the normal use of the multilayer optical composite film, and extend the service life of the multilayer optical composite film.

It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (4)

1. A multilayer optical composite film, comprising: The functional film (1) is a supporting and mounting structure of the multilayer optical composite film; A protective film (2) is disposed on the functional film (1) and is used to protect the multilayer optical composite film; The functional film (1) comprises a reflective film (11), an anti-reflective film (12) and a polarizer (13); the anti-reflective film (12) is arranged on the reflective film (11); the polarizer (13) is arranged on the anti-reflective film (12); the functional film (1) further comprises a diffusion film (14) and a brightness enhancement film (15); the diffusion film (14) is arranged on the polarizer (13); the brightness enhancement film (15) is arranged on the diffusion film (14). 2. A multilayer optical composite film according to claim 1, characterized in that: the protective film (2) comprises an ultraviolet blocking layer (21), and the ultraviolet blocking layer (21) is arranged on the brightness enhancement film (15). 3. A multilayer optical composite film according to claim 2, characterized in that the ultraviolet blocking layer (21) is made of ultraviolet blocking material. 4. A multilayer optical composite film according to claim 3, characterized in that: the protective film (2) further comprises an anti-scratch layer (22), and the anti-scratch layer (22) is arranged on the ultraviolet blocking layer (21).