TWM461811U - Optical film filtering blue light and screen protector made for the same - Google Patents

Description

Optical film for filtering blue light and screen protector

The invention relates to an optical film and a screen protection sticker manufactured thereby, in particular to an optical film for filtering blue light and a screen protection sticker manufactured thereby.

The various electronic products produced by modernization use a large number of screens, and because the screens exhibit various colors and brightness, blue light is often emitted. Since blue light has been medically researched, excessive intake into the eyes generates a large amount of free radicals, which may cause cataracts to the eyes. Even the macular degeneration is caused, and the eye damage caused by the blue light is continuous and accumulated, so the damage to the eyes is very large. However, for modern people, long-term attention to computer screens has become a kind of civilization harmful to the eyes. After a large number of tablet computers and smart phones are listed, more people become so-called "low-headed people", making them look at the size of the screen. The eye damage caused by it has become a more popular civilization. On the other hand, because the user can prevent scratches or damage to various screens, the screen protector is often used to protect the screen, and the screen protector usually adopts a transparent film, which does not hinder the display of the screen. In terms of protection against scratches or bumps on the screen. However, the current screen protectors often only have the function of protecting the screen as described above, and although it can also produce a slight filtering effect, it is still insufficient for protecting the user from the blue light. As is known in medicine, the projected blue light is very harmful to the eyes.

The present invention relates to an optical film for filtering blue light and a screen protection made thereby The optical film sequentially comprises a transparent substrate and an ultraviolet curing coating layer from the bottom to the bottom: the ultraviolet curing coating layer is filled with particles formed by a plurality of filterable blue materials.

The optical film can be further formed into a multi-layer structure by using the optical film, and the above-mentioned multi-layering, in addition to the screen protection sticker, the effect of protecting the screen can also be Filters or blocks blue light harmful to the eyes (about 400-500nm), reduces free radical activation of human eye tissue cells, avoids cell necrosis of the retina or crystal, and degeneration or cataract of the macula, making the screen protector effect. Moreover, the present invention can be used on screens of different sizes to increase the protection of a wide range of protection.

(1) ‧‧‧Optical diaphragm

(11) ‧‧‧Transparent substrate

(12) ‧‧‧UV hardened coating layer

(121) ‧‧‧Parts of filterable blue light

(A) ‧‧‧Screen Protector

(2) ‧ ‧ adhesive layer

(3) ‧ ‧ detachment film

The first figure is a cross-sectional view of the optical blue filter optical film structure of the present invention.

The second picture is a cross-sectional view of the screen filter made of the blue light-filtering optical film of the present invention.

The structure, features and examples of the creation are explained below with the aid of the schema, so that your reviewers have a better understanding of the new creation.

Referring to the first figure, the present invention relates to an optical film for filtering blue light. The optical film (1) sequentially comprises a transparent substrate (11) from bottom to top, and the transparent substrate (11) can be It is a plastic or glass, and an ultraviolet hardening coating layer (12): the ultraviolet curing coating layer (12) is filled with a plurality of filterable blue material (121).

The present invention forms a multi-layer structure by the optical film (1), and the above-mentioned multi-layer lamination, in addition to the screen protection sticker still has the effect of protecting the screen, and can also filter or block the blue light harmful to the eyes (about Wavelength 400-500nm), which reduces the free radical activation of human eye tissue cells, avoids cell necrosis of the retina or crystal, and macular degeneration or cataract, making the screen protector have a composite effect. And this new type can be used in different sizes of fire Curtain, increasing the role of extensive protection.

Furthermore, in order to achieve sufficient diffusion and uniform density, the average particle diameter of the particles (121) formed by the plurality of filterable blue materials may be less than the nanometer level, and the refractive index may be between 1.3 and 1.8. And the mass of the powder (121) formed by the plurality of filterable blue materials accounts for the mass of the powder (121) formed by the plurality of filterable blue materials and the quality of the ultraviolet hardened coating layer (12) It is between 5% and 40%. According to the empirical value, the blue light in the light can be filtered out by 30~45%.

The material (121) formed by the filterable blue material may be made of acrylic material or polymethyl methacrylate or polycarbonate. The ultraviolet curable coating is mainly composed of an oligomer (Oligomer) to which a diluent monomer and a photo initiator are added to increase its properties and reaction rate. The main components of the ultraviolet curable coating used in the present invention are, for example, Polyester acrylic oligomer, Epoxy acrylic oligomer or Polyurethane acrylic oligomer. ).

Referring to the second figure, the blue light optical film (1) can be further manufactured as a blue light screen protection sticker, and the blue light shielding optical can be formed as a screen protection sticker (A). The diaphragm (1), one side includes an adhesive layer (2), and the outer side of the adhesive layer (2) includes a release film (3). When used, the release film (3) of the screen protector (A) can be peeled off, and the adhesive layer (2) can be exposed, and thus can be attached to the screen of various products.

In summary, this creation is indeed in line with the industrial use, and it has not been seen in the publication or public use before the application, nor is it known to the public, and it has non-obvious knowledge, meets the requirements of patentability, and filed a patent application according to law. .

However, the above-mentioned statements are the preferred embodiment of the creative industry. The equal changes made by the scope of patent application for this creation are all within the scope of the claim.

(1) ‧‧‧Optical diaphragm

(11) ‧‧‧Transparent substrate

(12) ‧‧‧UV hardened coating layer

(121) ‧‧‧Parts of filterable blue light

Claims (4)

The optical filter for filtering blue light comprises, in order from bottom to top, a transparent substrate: an ultraviolet curing coating layer: the ultraviolet curing coating layer is formed by mixing a plurality of filterable blue materials. The optical filter for filtering blue light according to claim 1, wherein the filter formed by the filterable blue material has a refractive index of between 1.3 and 1.8, and the plurality of filterable blue materials The mass of the formed powder accounts for the mass of the powder formed by the plurality of filterable blue materials and the quality of the ultraviolet hardened coating layer, and the value is between 5% and 40%. The optical filter for filtering blue light according to claim 1, wherein the plurality of filterable blue materials have an average particle diameter smaller than a nanometer. A filter blue screen protector comprising one of the optical filters for filtering blue light according to the first to third aspects of the patent application, wherein the side of the optical filter for filtering blue light comprises an adhesive layer, and the adhesive layer The outer side includes a release film.