CN219456550U - Eye-protecting light screen for display equipment - Google Patents

Abstract

The utility model is suitable for the technical field of display screens, and provides an eye protection light screen for display equipment, which comprises a yellow planar film, a plurality of layers of scattering films and concave lens frosting films which are sequentially overlapped, wherein the scattering films are arranged between the planar film and the concave lens frosting films, the planar film is adhered to one side of the scattering films, the concave lens frosting films are adhered to the other side of the scattering films, and a concave part is formed on one side surface of the concave lens frosting films opposite to the scattering films and the other side surface of the concave lens frosting films, which is far away from the scattering films. The utility model uses the yellow plane film to neutralize the short wave blue light emitted by the screen and then scatter the light through the multi-layer scattering film, thereby achieving the effect of normal light scattering, finally uses the concave lens frosted film to scatter the backlight light again by using the concave lens imaging principle, and uses multi-layer diffuse reflection to ensure that the light of the screen enters the eyes as far as possible without direct irradiation, thereby reducing the harmful blue light entering the eyes, greatly reducing the damage of the display equipment to the eyes of the user, and achieving the effect of eye protection.

Description

Eye-protecting light screen for display equipment

Technical Field

The utility model belongs to the technical field of display screens, and particularly relates to an eye-protection light screen for display equipment.

Background

The existing flat panel is widely used with an LCD screen, and the LCD (Liquid Crystal Display) screen is provided with LED lamp beads, so that the blue light intensity is extremely high, the stimulation of the screen to eyes of a user is increased, and the eyesight of teenagers is greatly influenced. Therefore, it is necessary to design an eye-protecting screen suitable for a display device such as a tablet or a notebook computer.

Disclosure of Invention

The technical problem to be solved by the embodiment of the utility model is to provide an eye protection screen for display equipment, which aims to solve the problem that an LCD screen in the prior art has great eye irritation to a user.

The embodiment of the utility model is realized by providing an eye protection screen for display equipment, which comprises a yellow plane film, a plurality of layers of scattering films and concave lens frosting films which are sequentially overlapped, wherein the scattering films are arranged between the plane film and the concave lens frosting films, the plane film is adhered to one side of the scattering films, the concave lens frosting films are adhered to the other side of the scattering films, and a concave part is formed on one side surface of the concave lens frosting films opposite to the scattering films and the other side surface of the concave lens frosting films, which is far away from the scattering films.

Further, the scattering film is composed of two layers of transparent substrates and scattering particles arranged between the two layers of transparent substrates, the transparent substrates are made of polyester resin or polycarbonate, and the scattering particles are polymethyl methacrylate microspheres or organosilicon light dispersing agent microspheres.

Further, refractive indexes of the light scattering particles in the diffusion films of the respective layers decrease in order along the direction of the planar film toward the concave lens frosted film.

Further, the scattering film has 5 layers or 6 layers or 7 layers.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model uses the yellow plane film to neutralize the short wave blue light emitted by the screen and then scatter the light through the multi-layer scattering film, so as to achieve the effect of normal light dispersion, finally uses the concave lens frosted film to disperse the backlight light again by using the concave lens imaging principle, and properly reduces the definition of the screen to obtain the more proper light dispersion and light reflection prevention effect on the premise of not affecting the normal use of the user, combines the three protective films of the yellow plane film, the scattering film and the concave lens frosted film, and uses multi-layer diffuse reflection to enable the light of the screen to enter eyes as soon as possible, reduce the damage of the display equipment such as a tablet or a notebook computer to the eyes of the user, and achieve the effect of protecting the eyes.

Drawings

Fig. 1 is a schematic view of an eye-shielding screen for a display device according to an embodiment of the present utility model;

fig. 2 is a schematic view of the structure of the concave lens frosted film in fig. 1.

The reference numerals in the drawings are as follows:

1. a planar film; 2. A scattering film; 3. a concave lens frosted film; 4. a concave portion.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

As shown in fig. 1 and 2, an embodiment of the present utility model provides an eye-shielding screen for a display device. The eye protection light screen comprises a yellow planar film 1, a plurality of layers of scattering films 2 and concave lens frosting films 3 which are sequentially overlapped, wherein the scattering films 2 are arranged between the planar film 1 and the concave lens frosting films 3, the planar film 1 is adhered to one side of the scattering films 2, the concave lens frosting films 3 are adhered to the other side of the scattering films 2, namely, the planar film 1, the scattering films 2 and the concave lens frosting films 3 are sequentially overlapped and connected together, one side, deviating from the scattering films 2, of the planar film 1 is used for being adhered to a screen of a display device such as a tablet, a computer and the like, and a concave portion 4 is formed on one side, opposite to the scattering films 2, of the concave lens frosting films 3 and the other side, deviating from the scattering films 2, of the concave lens frosting films 3.

In the above embodiment, the scattering film 2 is composed of two layers of transparent substrates and scattering particles disposed between the two layers of transparent substrates, the transparent substrates are made of polyester resin or polycarbonate, and the scattering particles are polymethyl methacrylate microspheres or organosilicon light diffusing agent microspheres. The refractive index of the light scattering particles in the scattering film 2 of each layer decreases in order along the direction of the planar film 1 toward the concave lens frosted film 3.

In this embodiment, the transparent substrate is preferably made of polyester resin, the light-scattering particles are preferably polymethyl methacrylate microspheres, and after the light emitted from the light-emitting source of the display device passes through the planar film 1, the direction sequence of the light passing through each layer of the scattering film 2 is polyester resin, light-scattering particles and polyester resin, and the light is continuously refracted and diverged in two media with different refractive indexes when passing through the scattering film 2. When passing through the scattering films 2 of different layers, the refractive indexes of the scattering films 2 of each layer are different, so that the refractive and divergence angles of the scattering films 2 of each layer are different, and the occurrence of the total reflection phenomenon (the total reflection phenomenon can be caused when a medium with a large refractive index [ optical dense medium ] enters a medium with a small refractive index [ optical sparse medium ]) is required to be prevented according to the difference of the refractive indexes of the adjacent two layers of the scattering films 2, and the effect of the total reflection phenomenon is finally presented that the light source softness is increased by utilizing multiple diffuse reflection, so that the backlight light source is gradually diffused.

In the above embodiment, the diffusion film 2 has 5 layers, 6 layers or 7 layers, and in this embodiment, the diffusion film 2 is preferably 7 layers, which is designed on the premise that the user's look and feel are not damaged and the eye protection effect is maximally achieved, and too many diffusion films 2 may cause the user's look and feel to be significantly reduced, and too few diffusion films 2 may cause the eye protection effect to be poor.

In addition, it should be noted that the blue light and the yellow light are complementary light, the complementary light can form a mutual blocking effect, the control of the yellowish degree of the bottom film needs to be noted, under the condition that the user's look and feel is not affected, the 400-450 nm short-wave blue light emitted by the light source is absorbed as middle as possible, the frosting degree of the outermost concave lens frosting film 3 also needs to be tested according to the indoor bright light in the normal day, and the user experience of using the display device such as a flat panel or a pen power is tested, so that the external strong light is prevented from being stimulated by screen reflection.

In summary, the planar film 1 with yellow color at the innermost layer can change the backlight of the display device such as a tablet or a notebook computer into yellow color, and the reflection degree of yellow color is low, so the planar film is used as the eye protection at the innermost layer; the yellow planar film 1 is used for neutralizing short-wave blue light emitted by a screen and then scattering the short-wave blue light through the multi-layer scattering films 2, and the multi-layer scattering films 2 which are sequentially overlapped and positioned in the middle layer are used for achieving the effect of normally scattering light; a layer of concave lens frosted film 3 is added on the outermost layer, backlight light is diffused again by utilizing a concave lens imaging principle, and the screen definition is properly reduced on the premise of not affecting normal use of a user so as to obtain more proper light diffusion and reflection prevention effects; the three protective films, namely the yellow plane film 1, the scattering film 2 and the concave lens frosted film 3, are combined, and the light of the screen of the display device is prevented from directly entering eyes as far as possible by utilizing multilayer diffuse reflection, so that harmful blue light entering eyes is reduced, the damage of the display device such as a tablet or a notebook computer to eyes of a user is greatly reduced, and the effect of protecting eyes is achieved.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (4)

1. An eyeshield light screen for display device, its characterized in that, including being yellow plane membrane, multilayer superimposed scattering film and concave lens dull polish membrane in proper order, the scattering film set up in the plane membrane with between the concave lens dull polish membrane, the plane membrane paste is located one side of scattering film, concave lens dull polish membrane paste is located the opposite side of scattering film, concave lens dull polish membrane with the opposite side of scattering film reaches the concave lens dull polish membrane deviate from the another side of scattering film all forms the depressed part.

2. An eye-protection screen for a display device according to claim 1, wherein the scattering film comprises two layers of transparent substrates and scattering particles arranged between the two layers of transparent substrates, the transparent substrates are made of polyester resin or polycarbonate, and the scattering particles are polymethyl methacrylate microspheres or organosilicon light dispersing agent microspheres.

3. An eye-protecting light screen for a display device as claimed in claim 2, wherein refractive indexes of the light-diffusing particles in the diffusion film of each layer decrease in order along the direction of the planar film toward the concave lens frosted film.

4. An eye-shield screen for a display device according to any one of claims 1 to 3, wherein the diffusion film has 5 layers or 6 layers or 7 layers.