CN216118376U - Projection screen and projection equipment - Google Patents

Abstract

The present invention provides a projection screen, comprising: an ultra-thin glass lens layer; the projection reflection layer is arranged on the installation surface of the ultrathin glass lens layer; the polarizer layer is arranged on the projection surface of the ultrathin glass lens layer; wherein, the ultra-thin glass lens layer can be curled and folded in two directions. The projection screen of the scheme is light and thin, the hardness of the projection screen is high, the projection screen cannot be curled naturally, meanwhile, the projection screen can be curled and folded towards the plane direction of any side, and crease is not easy to generate after bending. And impact resistance is strong, and compared with the traditional projection screen, the projection screen has the characteristic of high light transmittance, so that the projection screen is more colorful in color, stronger in contrast, stronger in image color contrast, clearer in scenery, stronger in stereoscopic impression, and has good popularization and use values.

Description

Projection screen and projection equipment

Technical Field

The utility model relates to the field of projection equipment, in particular to a projection screen and projection equipment.

Background

At present, people have closer requirements on projection focal length in the field of projection display, and in recent years, a fire-heat ultra-short-focus laser projector is popularized in a plurality of environments, but in use, the fire-heat ultra-short-focus laser projector needs to be matched with a Fresnel projection screen; the screen has the characteristics of high gain, small visual angle, capability of furthest improving the brightness of human eyes when the human eyes are just watching, and good display effect.

However, the surface of the screen of this type reflects light, and reflects light to the upper side and the left and right sides of the screen, for example, to the ceiling, and if there are objects such as walls on the two sides of the screen, the light also reflects to the objects, and the images can be clearly imaged, and the images can also change with the change of the projector picture, and these reflected light images can seriously affect the viewing experience of the user.

Therefore, how to improve the display effect and the display quality of the projection curtain is a technical problem that needs to be solved at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a projection screen and projection equipment, which improve the display effect and the display quality, improve the stereoscopic impression of a user and improve double images generated by single Fresnel projection and reflected to a ceiling or walls on two sides of the screen.

The utility model provides a projection screen, comprising:

an ultra-thin glass lens layer;

the projection reflection layer is arranged on the installation surface of the ultrathin glass lens layer;

the polarizer layer is arranged on the projection surface of the ultrathin glass lens layer;

wherein, the ultra-thin glass lens layer can be curled and folded in two directions.

As a preferable technical solution, the projection screen further includes an anti-glare scratch layer, and the first anti-fouling layer is plated on the surface of the polarizer layer.

As a preferred technical scheme, the anti-glare and anti-scratch layer is made of perfluoropolyether silane polymer.

As a preferable technical scheme, the light transmittance of the anti-glare scratch layer is greater than 98%.

As a preferred technical scheme, the ultrathin glass lens layer is an ultrathin glass fresnel lens layer;

the thickness of the ultrathin glass Fresnel lens layer is 0.1 mm-0.15 mm, and the hardness is 9H.

According to the preferable technical scheme, the thickness of the projection reflecting layer is 0.02-0.15 mm, and the reflected light density is more than or equal to 4.5.

As a preferable technical scheme, the thickness of the polarizer layer is 0.03-0.15 mm.

Preferably, the polarizer layer is coated on the projection surface of the ultrathin glass lens layer through vacuum physical coating.

Preferably, the projection screen has a minimum bend radius of 65 mm.

The utility model also provides a projection device which comprises the projection screen and a projector.

In conclusion, the projection screen is light and thin, the thickness of the projection screen can be as low as 0.03 mm-0.15 mm, and the projection screen has high hardness and can not be curled naturally due to the adoption of the high-impact-resistance ultrathin glass as the ultrathin glass lens layer, and can be curled and folded towards the plane direction of any side, so that creases are not easy to generate after bending. And impact resistance is strong, the surface is smooth and flat, compared with the traditional projection screen, the light-transmitting screen has the characteristic of high light transmittance, so that the projection screen has more gorgeous colors and stronger contrast, the image color contrast is stronger, the scenery is clearer, the stereoscopic impression is stronger, and the light-transmitting screen has good popularization and use values.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic view of a projection screen in use;

FIG. 2 is a schematic cross-sectional view of a projection screen;

icon:

1 is a projection reflection layer, 2 is an ultrathin glass lens layer, 3 is a polarizer layer, 4 is an anti-glare scratch layer, 5 is a projection screen, and 6 is a viewing eye.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. 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.

Example one

In this embodiment, a projection screen is provided, as shown in fig. 2, the projection screen may be a regular polygon or a circle, which is not limited in this embodiment, and a viewing eye 6 is provided in front of the projection screen.

The projection screen includes:

the ultrathin glass lens layer 2 is an ultrathin glass Fresnel lens layer, one surface of the ultrathin glass lens layer 2 is provided with textures which serve as a projection surface, concentric circular teeth from small to large are recorded on the projection surface and are arranged into a sawtooth shape, the textures are designed and manufactured according to the requirements of relative sensitivity and receiving angle by utilizing interference of light, and the other surface of the ultrathin glass lens layer 2 is a smooth surface and serves as an installation surface. The thickness of the ultrathin glass Fresnel lens layer is 0.1-0.15 mm, and the hardness is 9H;

the projection reflection layer 1 is positioned on the installation surface of the ultrathin glass lens layer 2;

the polarizer layer 3 is positioned on the projection surface of the ultrathin glass lens layer 2;

wherein, the ultra-thin glass lens layer 2 can be curled and folded in two directions.

Due to the adoption of the ultrathin glass material, the projection screen is lighter and thinner, and the minimum bending radius of the projection screen can reach 65 mm. On the other hand, the projection screen has higher rigidity, can not be naturally curled, can be curled and folded towards any side plane direction, is not easy to generate crease after being bent, and has strong impact resistance.

It is worth mentioning that the projection reflection layer 1 is formed by solidifying the ultra-thin glass lens layer 2 on the installation surface through vacuum physical coating; preferably, the thickness of the transparent conductive film can be 0.02-0.15 mm, the reflected light density is more than or equal to 4.5, the average visible light transmittance is more than 95%, and the average reflectivity is less than 4%. The polarizer layer 3 is coated on the projection surface of the ultrathin glass lens layer 2 through vacuum physical coating, the thickness of the polarizer layer 3 can be 0.03-0.15mm, and the polarizer layer 3 can increase the high definition of images, so that the color is more gorgeous and the reduction is more vivid.

Compared with the traditional projection screen, the projection screen has the advantages that the color of the projection screen is more gorgeous and the contrast is stronger due to the fact that the polarizer layer 3 and the projection reflecting layer 1 have the characteristic of high light transmittance, so that the image color contrast is stronger, scenery is clearer, the stereoscopic impression is stronger, and the projection screen has good popularization and use values.

In order to ensure the clarity of the picture and prevent water drops or fingerprints from influencing the clarity, the projection screen further comprises an anti-glare scratch layer 4, and the anti-glare scratch layer 4 is plated on the surface of the polarizer layer 3.

As is common, the anti-glare and anti-scratch layer 4 is made of perfluoropolyether silane polymer; the glare-resistant scratch layer 4 made of the material has the light transmittance of more than 98 percent, vivid color without whitening, effectively ensures the definition of pictures and simultaneously prevents water drops or fingerprints from influencing the definition.

Example two

The embodiment also provides a projection device, as shown in fig. 1, including the projection screen 5 as described above, and further including a projector. The projection screen 5 may be attached to a wall, a flat panel, or a support frame, and the projection screen 5 may be rolled, retracted, or folded as desired.

The projection screen 5 has the characteristics of smooth surface, high gain, high resolution, high definition, impact resistance, explosion resistance and the like, is suitable for various lumen projectors, can obtain clear and bright projection in dark or bright environments, has vivid color and image and real stereoscopic impression, and has good popularization and use values.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A projection screen, comprising:

an ultra-thin glass lens layer;

the projection reflection layer is arranged on the installation surface of the ultrathin glass lens layer;

the polarizer layer is arranged on the projection surface of the ultrathin glass lens layer;

wherein, the ultra-thin glass lens layer can be curled and folded in two directions.

2. The projection screen of claim 1, further comprising an anti-glare scratch layer, the first anti-smudge layer being plated on a surface of the polarizer layer.

3. The projection screen of claim 2, wherein the anti-glare scratch layer is made from a perfluoropolyether silane polymer.

4. The projection screen of claim 3, wherein the anti-glare scratch layer has a light transmittance of greater than 98%.

5. The projection screen of claim 1, wherein the ultra-thin glass lenticular layer is an ultra-thin glass fresnel lenticular layer;

the thickness of the ultrathin glass Fresnel lens layer is 0.1 mm-0.15 mm, and the hardness is 9H.

6. The projection screen of claim 1, wherein the projection reflective layer has a thickness of 0.02-0.15 mm and a reflected light density of 4.5 or more.

7. The projection screen of claim 1, wherein the polarizer layer has a thickness of 0.03-0.15 mm.

8. The projection screen of claim 1, wherein the polarizer layer is physically coated on the projection surface of the ultra-thin glass lens layer by vacuum.

9. The projection screen of claim 1 wherein the projection screen has a minimum bend radius of 65 mm.

10. A projection device comprising the projection screen of any one of claims 1-9, and further comprising a projector.

Images