阅读说明：本技术 增光膜及其制作方法 (Brightness enhancement film and manufacturing method thereof ) 是由 李日锦 于 2021-09-09 设计创作，主要内容包括：本发明提供增光膜及其制作方法,涉及新材料技术领域。该增光膜及其制作方法,包括基膜和增亮膜,所述增亮膜共有两层,且分别通过UV树脂胶水粘贴在基膜两侧表面,所述增亮膜包括中间一层的基材,所述基材一侧表面设置有UV树脂胶水,且基材另一侧表面设置有扩散粒子。通过在基材一面涂覆UV树脂胶水,并使UV树脂胶水表面形成角度为90°的锯齿阵列,然后在另一面喷射形成扩散粒子,进而制成增亮膜,然后将两张增亮膜再通过UV树脂胶水粘贴在基膜两面制成增光膜,这样就可以通过两层增亮膜上的UV树脂胶水上的锯齿阵列和扩散粒子对光线进行反射、折射和扩散,从而实现了不需要光源装置就能增光的效果,更加节能,值得大力推广。(The invention provides a brightness enhancement film and a manufacturing method thereof, and relates to the technical field of new materials. The brightness enhancement film comprises a base film and two layers of brightness enhancement films, wherein the two layers of brightness enhancement films are respectively adhered to the surfaces of two sides of the base film through UV resin glue, each brightness enhancement film comprises a base material with a middle layer, the UV resin glue is arranged on the surface of one side of the base material, and diffusion particles are arranged on the surface of the other side of the base material. Through at substrate one side coating UV resin glue, and make UV resin glue surface shape become the sawtooth array that the angle is 90, then spray at the another side and form the diffusion particle, and then make brightness enhancement film, then paste two brightness enhancement films at the two sides of the base film through UV resin glue again and make the brightness enhancement film, sawtooth array and diffusion particle on the UV resin glue that just so can be through two-layer brightness enhancement film reflect light, refraction and diffusion, thereby realized not needing the effect that light source device just can add light, more energy-conservation, be worth wideling popularize.)

1. The bright enhancement film comprises a base film and a bright enhancement film, and is characterized in that: the brightness enhancement film is two-layer in total, and pastes at base film both sides surface through UV resin glue respectively, the brightness enhancement film includes the substrate of middle one deck, substrate one side surface is provided with UV resin glue, and substrate opposite side surface is provided with the diffusion particle.

2. The brightness enhancement film according to claim 1, wherein: the base film and the base material are both made of polyethylene terephthalate.

3. The brightness enhancement film according to claim 1, wherein: the refractive index of the UV resin glue is 1.54-1.59.

4. The brightness enhancement film according to claim 1, wherein: the matrix of the diffusion particles is made of a high-molecular light-transmitting material, and the diameter of the matrix of the diffusion particles is 60-120 nm.

5. The method for manufacturing a brightness enhancement film according to claims 1 to 4, characterized in that: the method comprises the following steps:

s1, firstly coating a layer of UV resin glue on the surface of one side of a substrate, then pressing the UV resin glue by using a mould plate to enable the surface of the UV resin glue to form a sawtooth array with an angle of 90 degrees, and then curing and shaping the UV resin glue by using a UV curing furnace;

s2, forming a layer of diffusion particles on the other side surface of the base material in a sand spraying mode to obtain a brightness enhancement film;

and S3, repeating S1-S2 to manufacture a brightness enhancement film, adhering two brightness enhancement films to the upper surface and the lower surface of the base film through UV resin glue, and keeping the two brightness enhancement films to be arranged in a staggered mode to manufacture the brightness enhancement film.

6. The method for manufacturing a brightness enhancement film according to claim 5, wherein: the thickness of the UV resin glue on the surface of the base material is 13-16 mu m, and the thickness of the UV resin glue between the base film and the brightness enhancement film is 5-7 mu m.

7. The method for manufacturing a brightness enhancement film according to claim 5, wherein: the thickness of the diffusion particles is 9 to 11 μm.

8. The method for manufacturing a brightness enhancement film according to claim 5, wherein: the curing time of the curing oven is 180-250 s, and the curing temperature is 120-140 ℃.

Technical Field

The invention relates to the technical field of new materials, in particular to a brightness enhancement film and a manufacturing method thereof.

Background

The brightness enhancement film is also called BEF, and is an optical film which uses acrylic resin on the surface of PET with excellent transparency and is precisely formed into a layer of uniform prism pattern.

General membrane of adding lustre to all has several layers pressfittings, it is central usually to be the base film, the membrane of adding lustre to bond around, the effect of membrane of adding lustre to is whether because the refracting index and the luminousness of membrane of adding lustre to are different respectively, but its effect is uneven a bit, general membrane of adding lustre to is in the display screen below, there is light source device also in the below of membrane of adding lustre to, when the display screen during operation, except that the display screen is luminous, the below light source device that still needs membrane of adding lustre to give out light, then increase luminosity through membrane of adding lustre to again, although the effect can reach, but to whole display device's power consumption just than higher, if the membrane of adding lustre to can strengthen the luminosity of display screen, need not increase light source device again, just so saved a lot of standby electric quantity.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the brightness enhancement film and the manufacturing method thereof, and solves the problem of high energy consumption caused by the fact that the brightness enhancement film needs to be matched with a light source device.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: the brightness enhancement film comprises a base film and a brightness enhancement film, the brightness enhancement film is totally two-layer, and is respectively adhered to the surfaces of two sides of the base film through UV resin glue, the brightness enhancement film comprises a base material of a middle layer, one side surface of the base material is provided with the UV resin glue, and the surface of the other side of the base material is provided with diffusion particles.

Preferably, the base film and the base material are both made of polyethylene terephthalate.

Preferably, the refractive index of the UV resin glue is 1.54-1.59.

Preferably, the matrix of the diffusion particles is made of a high-molecular light-transmitting material, and the diameter of the matrix of the diffusion particles is 60-120 nm.

Preferably, the method for manufacturing the brightness enhancement film comprises the following steps:

s1, firstly coating a layer of UV resin glue on the surface of one side of a substrate, then pressing the UV resin glue by using a mould plate to enable the surface of the UV resin glue to form a sawtooth array with an angle of 90 degrees, and then curing and shaping the UV resin glue by using a UV curing furnace;

s2, forming a layer of diffusion particles on the other side surface of the base material in a sand spraying mode to obtain a brightness enhancement film;

and S3, repeating S1-S2 to manufacture a brightness enhancement film, adhering two brightness enhancement films to the upper surface and the lower surface of the base film through UV resin glue, and keeping the two brightness enhancement films to be arranged in a staggered mode to manufacture the brightness enhancement film.

Preferably, the thickness of the UV resin glue on the surface of the base material is 13-16 μm, and the thickness of the UV resin glue between the base film and the brightness enhancement film is 5-7 μm.

Preferably, the thickness of the diffusion particles is 9 to 11 μm.

Preferably, the curing time of the curing oven is 180-250 s, and the curing temperature is 120-140 ℃.

(III) advantageous effects

The invention provides a brightness enhancement film and a manufacturing method thereof. The method has the following beneficial effects:

according to the invention, one surface of the substrate is coated with the UV resin glue, the surface of the UV resin glue forms the sawtooth arrays with the angle of 90 degrees in a mode of pressing the die plate, then the other surface is sprayed to form the diffusion particles, so that the brightness enhancement film is prepared, and then two brightness enhancement films are adhered to two surfaces of the base film through the UV resin glue to prepare the brightness enhancement film, so that when the brightness enhancement film is used, light rays are reflected, refracted and diffused through the sawtooth arrays and the diffusion particles on the UV resin glue on the two brightness enhancement films, the brightness enhancement effect can be realized without a light source device, the standby power consumption is greatly reduced, the energy is saved, and the method is worthy of great popularization.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

the embodiment of the invention provides a brightness enhancement film, which comprises a base film and two brightness enhancement films, wherein the brightness enhancement films are respectively adhered to the surfaces of two sides of the base film through UV resin glue, each brightness enhancement film comprises a base material with a middle layer, the UV resin glue is arranged on the surface of one side of each base material, and diffusion particles are arranged on the surface of the other side of each base material.

The base film and the base material are both made of polyethylene terephthalate.

The refractive index of the UV resin glue is 1.54-1.59.

The matrix of the diffusion particles is made of a high-molecular light-transmitting material, the diameter of the matrix of the diffusion particles is 60-120 nm, and the diffusion particles can diffuse the optical fiber, so that the effect of intensifying light is achieved.

The embodiment of the invention provides a manufacturing method of a brightness enhancement film, which comprises the following steps:

s1, firstly coating a layer of UV resin glue on the surface of one side of a substrate, then pressing the UV resin glue by using a die plate, so that the surface of the UV resin glue is provided with a sawtooth array with an angle of 90 degrees, the sawtooth array formed by the UV resin glue can better reflect and refract light rays, thereby better realizing the effect of intensifying light, and then curing and shaping the UV resin glue by using a UV curing furnace;

s2, forming a layer of diffusion particles on the other side surface of the base material in a sand spraying mode to obtain a brightness enhancement film;

s3, repeating S1-S2 to manufacture a brightness enhancement film, adhering two brightness enhancement films to the upper surface and the lower surface of the base film through UV resin glue, and keeping the two brightness enhancement films to be arranged in a staggered mode, so that the brightness enhancement film can be manufactured, and the brightness enhancement effect of the brightness enhancement film can be better due to the two layers of brightness enhancement films.

The thickness of the UV resin glue on the surface of the base material is 15 micrometers, and the thickness of the UV resin glue between the base film and the brightness enhancement film is 6 micrometers.

The thickness of the diffusion particles was 10 μm.

The curing time of the curing oven was 210s, and the curing temperature was 120 ℃.

Example two:

the embodiment of the invention provides a brightness enhancement film, which comprises a base film and two brightness enhancement films, wherein the brightness enhancement films are respectively adhered to the surfaces of two sides of the base film through UV resin glue, each brightness enhancement film comprises a base material with a middle layer, the UV resin glue is arranged on the surface of one side of each base material, and diffusion particles are arranged on the surface of the other side of each base material.

The base film and the base material are both made of polyethylene terephthalate.

The refractive index of the UV resin glue is 1.54-1.59.

The matrix of the diffusion particles is made of a high-molecular light-transmitting material, the diameter of the matrix of the diffusion particles is 60-120 nm, and the diffusion particles can diffuse the optical fiber, so that the effect of intensifying light is achieved.

The embodiment of the invention provides a manufacturing method of a brightness enhancement film, which comprises the following steps:

s1, firstly coating a layer of UV resin glue on the surface of one side of a substrate, then pressing the UV resin glue by using a die plate, so that the surface of the UV resin glue is provided with a sawtooth array with an angle of 90 degrees, the sawtooth array formed by the UV resin glue can better reflect and refract light rays, thereby better realizing the effect of intensifying light, and then curing and shaping the UV resin glue by using a UV curing furnace;

s2, forming a layer of diffusion particles on the other side surface of the base material in a sand spraying mode to obtain a brightness enhancement film;

s3, repeating S1-S2 to manufacture a brightness enhancement film, adhering two brightness enhancement films to the upper surface and the lower surface of the base film through UV resin glue, and keeping the two brightness enhancement films to be arranged in a staggered mode, so that the brightness enhancement film can be manufactured, and the brightness enhancement effect of the brightness enhancement film can be better due to the two layers of brightness enhancement films.

The thickness of the UV resin glue on the surface of the base material is 14 μm, and the thickness of the UV resin glue between the base film and the brightness enhancement film is 5 μm.

The thickness of the diffusion particles was 9 μm.

The curing time of the curing oven was 220s, and the curing temperature was 120 ℃.

Example three:

the embodiment of the invention provides a brightness enhancement film, which comprises a base film and two brightness enhancement films, wherein the brightness enhancement films are respectively adhered to the surfaces of two sides of the base film through UV resin glue, each brightness enhancement film comprises a base material with a middle layer, the UV resin glue is arranged on the surface of one side of each base material, and diffusion particles are arranged on the surface of the other side of each base material.

The base film and the base material are both made of polyethylene terephthalate.

The refractive index of the UV resin glue is 1.54-1.59.

The matrix of the diffusion particles is made of a high-molecular light-transmitting material, the diameter of the matrix of the diffusion particles is 60-120 nm, and the diffusion particles can diffuse the optical fiber, so that the effect of intensifying light is achieved.

The embodiment of the invention provides a manufacturing method of a brightness enhancement film, which comprises the following steps:

s1, firstly coating a layer of UV resin glue on the surface of one side of a substrate, then pressing the UV resin glue by using a die plate, so that the surface of the UV resin glue is provided with a sawtooth array with an angle of 90 degrees, the sawtooth array formed by the UV resin glue can better reflect and refract light rays, thereby better realizing the effect of intensifying light, and then curing and shaping the UV resin glue by using a UV curing furnace;

s2, forming a layer of diffusion particles on the other side surface of the base material in a sand spraying mode to obtain a brightness enhancement film;

s3, repeating S1-S2 to manufacture a brightness enhancement film, adhering two brightness enhancement films to the upper surface and the lower surface of the base film through UV resin glue, and keeping the two brightness enhancement films to be arranged in a staggered mode, so that the brightness enhancement film can be manufactured, and the brightness enhancement effect of the brightness enhancement film can be better due to the two layers of brightness enhancement films.

The thickness of the UV resin glue on the surface of the base material is 16 mu m, and the thickness of the UV resin glue between the base film and the brightness enhancement film is 7 mu m.

The thickness of the diffusion particles was 11 μm.

The curing time of the curing oven was 250s, and the curing temperature was 140 ℃.

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