CN211061846U

CN211061846U - Transverse grating structure light-resistant projection screen

Info

Publication number: CN211061846U
Application number: CN202020006878.7U
Authority: CN
Inventors: 杨大海
Original assignee: Shenzhen Zhenping Technology Development Co ltd
Current assignee: Shenzhen Zhenping Technology Development Co ltd
Priority date: 2020-01-01
Filing date: 2020-01-01
Publication date: 2020-07-21
Anticipated expiration: 2030-01-01

Abstract

A transverse grating structure light-resistant projection screen is characterized by comprising a transparent substrate layer, an imaging layer and a grating structure layer, wherein the imaging layer is arranged on one side of the transparent substrate layer; the grating structure layer is arranged on the surface of one side, back to the back, of the transparent substrate layer, the grating structure layer is provided with a plurality of protruding grating microstructures, and the grating microstructures are spaced from each other and have a light absorption effect. The utility model discloses an anti light projection screen of horizontal grating structure is equipped with the grating structure layer that is pellicle black form, grating structure layer integrated into one piece, and it includes grating microstructure and connecting portion, and wherein, the grating microstructure is outstanding form, and it has the effect of sheltering from absorption ambient light, and consequently, its reducible ambient light is to the influence of projection formation of image, and then makes projection picture contrast higher, and the display effect is better. The utility model discloses an anti light projection screen of horizontal grating structure has simple structure, easily processing, advantage that the projection is effectual, and it has very strong practicality, should widely popularize.

Description

Transverse grating structure light-resistant projection screen

[ technical field ] A method for producing a semiconductor device

The utility model relates to an anti light projection screen of horizontal grating structure.

[ background of the invention ]

Projection screens are tools that cooperate with projectors to display images, video screens, etc., and are commonly used in commercial advertising, teaching, office, home or theater entertainment, etc. As for the liquid crystal screen for displaying images, in the occasion of large-size requirement, the liquid crystal screen has high cost and is not easy to carry and store, and cannot be instantly stored when not used; and the liquid crystal screen larger than 50 inches is expensive, which is not beneficial to the purchase and use of common families; in addition, when the liquid crystal screen is watched for a long time, the eyesight of human eyes is easily affected by radiation, and the human health is not facilitated. However, the projection screen of the same size does not have the above problems, and not only is the cost and the selling price far lower than those of the liquid crystal screen of the same size, but also the projection screen is easy to carry, roll up and store, and meanwhile, the projection screen does not affect the health of human eyes, so the projection screen is widely applied. However, the existing projection screen is often interfered by ambient light when in use; when the ambient light is stronger, the projection image becomes more white and more grey, so that the contrast of the projection image cannot meet the requirement, and therefore, the audience cannot see clearly, and the basic demonstration effect is lost.

[ Utility model ] content

The utility model aims at solving the above problem, and provides an anti light projection screen of horizontal grating structure that processing is simple, can reduce ambient light interference.

In order to solve the above problems, the present invention provides a transverse grating structure light-resistant projection screen, which is characterized in that the screen comprises a transparent substrate layer, an imaging layer and a grating structure layer, wherein the imaging layer is arranged on one side of the transparent substrate layer; the grating structure layer is arranged on the surface of one side, back to the back, of the transparent substrate layer, the grating structure layer is provided with a plurality of protruding grating microstructures, and the grating microstructures are spaced from each other and have a light absorption effect.

Further, the grating structure layer is made of a semitransparent black material.

Further, the grating structure layer comprises the grating microstructures and a connecting part arranged between the grating microstructures, and the grating microstructures and the connecting part are integrally formed.

Furthermore, the grating microstructure is flush with the surface of one side of the connecting part and is attached to the surface of the transparent substrate layer together.

Furthermore, on the side away from the transparent substrate layer, the grating microstructures protrude out of the surface of the connecting part.

Furthermore, the cross section of the grating microstructure is trapezoidal or triangular.

Further, the distance from the top of the grating microstructure to the connecting part is 100-600 um, and the width of the bottom of the grating microstructure is less than 200 um.

Further, the surface of the grating structure layer is frosted.

Further, the side of the imaging layer, which is far away from the transparent base material layer, is compounded with a release film which can be torn off.

The beneficial contributions of the utility model reside in that, it has effectively solved above-mentioned problem. The utility model discloses an anti light projection screen of horizontal grating structure is equipped with the grating structure layer that is pellicle black form, grating structure layer integrated into one piece, and it includes grating microstructure and connecting portion, and wherein, the grating microstructure is outstanding form, and it has the effect of sheltering from absorption ambient light, and consequently, its reducible ambient light is to the influence of projection formation of image, and then makes projection picture contrast higher, and the display effect is better. The utility model discloses an anti light projection screen of horizontal grating structure has simple structure, easily processing, advantage that the projection is effectual, and it has very strong practicality, should widely popularize.

[ description of the drawings ]

Fig. 1 is a schematic view of the entire structure of embodiment 1.

Fig. 2 is a schematic view of embodiment 1.

Fig. 3 is a schematic view of embodiment 1.

FIG. 4 is a schematic structural view of embodiment 2.

The optical grating structure comprises a transparent substrate layer 10, an imaging layer 20, a grating structure layer 30, a grating microstructure 31, a connecting part 32, a release film 40 and an adhesive 50.

[ detailed description ] embodiments

The following examples are further to explain and supplement the present invention, and do not constitute any limitation to the present invention.

Example 1

As shown in fig. 1, the lateral grating structure light-resistant projection screen of the present invention includes a transparent substrate layer 10, an imaging layer 20, and a grating structure layer 30.

The transparent substrate layer 10 is used for bearing other structural layers and is transparent. The thickness of the transparent substrate layer 10 can be set as required, and in this embodiment, the thickness of the transparent substrate layer 10 is 0.05-0.5 mm, and preferably 0.25 mm.

The transparent substrate layer 10 may be made of a known material, such as PET, PP, PC, PVC, etc. In this embodiment, the transparent substrate layer 10 is made of a PET material.

The imaging layer 20 is used for projection imaging and is arranged on one side surface of the transparent substrate layer 10. In some embodiments, the imaging layer 20 may be provided according to a front projection imaging film, for example, the imaging layer 20 is formed by attaching a front projection imaging film to the transparent substrate layer 10. In some embodiments, the imaging layer 20 may be provided according to a rear projection imaging film, for example, the imaging layer 20 may be formed by attaching a rear projection imaging film to the transparent substrate layer 10. In some embodiments, the imaging layer 20 may be formed by applying an imaging ink varnish to the surface of the transparent substrate layer 10 by a coating printing process.

The color of the imaging layer 20 may be light or dark, and is usually set to be light such as silver gray or silver white.

The grating structure layer 30 is used for absorbing ambient light to improve the contrast of the projection image, so as to improve the display effect of the projection image. The grating structure layer 30 is disposed on a surface of the transparent substrate layer 10 facing away from the imaging layer 20.

The grating structure layer 30 includes a plurality of grating microstructures 31 arranged at intervals and a connecting portion 32 arranged between the grating microstructures 31. The grating microstructures 31 are flush with one side surface of the connecting portion 32, and are attached to the surface of the transparent substrate layer 10 together. On the side away from the transparent substrate layer 10, the grating microstructures 31 protrude from the surface of the connecting portion 32.

The grating microstructure 31 and the connecting portion 32 are integrally formed, and the whole is in a semi-permeable membrane black shape. Wherein, black is used for absorbing light to improve the display effect of the projection picture. The translucent shape is used to allow the projection light to pass through.

The grating microstructures 31 of the grating structure layer 30 may be identical in shape and size, or may be different in shape and size, and may be specifically arranged as required. In this embodiment, the grating microstructures 31 in the grating structure layer 30 have the same shape and size. The distances between the grating microstructures 31 may be uniform or non-uniform, and may be specifically set as required. In this embodiment, the distances between the grating microstructures 31 are the same.

The cross section of the grating microstructure 31 is trapezoidal, triangular or arc-shaped, in this embodiment, the cross section of the grating microstructure 31 is trapezoidal, and a corner of the grating microstructure can be provided with a fillet to facilitate processing and demolding.

The connecting portion 32 is a flat film with a small thickness to facilitate light transmission.

The size of the grating microstructure 31 is very fine, and the distance from the top of the grating microstructure to the connecting portion 32 is 100-600 um, preferably 400um in the embodiment. The width of the bottom of the grating microstructure 31 is 30-300 um, and in the embodiment, the width is preferably 70 um. In addition, the width of the top of the grating microstructure 31 is 20-200 umm, and in the embodiment, it is preferably 40 um.

The surface of the grating structure layer 30 is frosted, which can prevent the reflection of light on the surface of the projection screen and reduce the influence of the external environment on the projection effect. The surface of the grating structure layer 30 is frosted, and a known technology can be referred to.

In this embodiment, the grating structure layer 30 is formed by UV curing. In practice, the black liquid UV glue of the semi-permeable membrane is coated on the surface of the transparent substrate layer 10, and then is cured and molded by ultraviolet irradiation, and then is engraved by using a die roller to form the concave-convex structure having the grating microstructure 31 and the connecting portion 32, thereby forming the grating structure layer 30.

The protruding grating microstructure 31 in the grating structure layer 30 can be used for absorbing and shielding ambient light, thereby improving the display effect of the projection picture.

Therefore, the utility model discloses an anti light projection screen of horizontal grating structure has just formed the utility model discloses a it includes formation of image layer 20, transparent substrate layer 10 and grating structure layer 30 in proper order. The utility model discloses an anti light projection screen of horizontal grating structure both can be used to positive projection formula projection screen, can be used to rear-projection formula projection screen again, it depends on the setting of formation of image layer 20.

When the imaging layer 20 is a front projection type imaging film, the grating structure layer 30 is a side facing the viewer, i.e., a front side, as shown in fig. 2. The imaging film is the side facing away from the viewer, i.e. the back side. When the projection device is used, the projection device is arranged on the front side of the projection screen. When the projection light emitted by the projection apparatus enters the projection screen, the projection light passes through the connecting portion 32 of the grating structure layer 30 and the transparent substrate layer 10 and enters the surface of the imaging layer 20, and after being reflected by the imaging layer 20, the projection light passes through the transparent substrate layer 10 and the connecting portion 32 and exits toward the viewer, so that the viewer can view the projection picture projected on the projection screen. The ambient light is generally emitted from the front upper side of the projection screen, and when the ambient light is emitted to the projection screen, the ambient light reaches the grating microstructure 31 of the grating structure layer 30, because the grating microstructure 31 is black and the grating microstructure 31 is thicker than the connecting portion 32, the grating microstructure 31 has a shielding and absorbing effect on the ambient light, so that the ambient light is difficult to be emitted to the imaging layer 20. Since the ambient light is hard to be incident on the imaging layer 20 to interfere with the projection imaging, the contrast of the projection screen is higher and the projection screen is displayed more clearly without being whitish and grayed.

As shown in fig. 3, when the imaging layer 20 is a rear projection type imaging film, the grating structure layer 30 is a side facing the viewer, i.e. a front side; the imaging film is the side facing away from the viewer, i.e. the back side. In use, the projection device is arranged on the back side of the projection screen, i.e. the side facing the imaging layer 20. When the projection light emitted by the projection device is incident on the projection screen, the projection light passes through the imaging layer 20, the transparent substrate layer 10 and the connecting portion 32 and is emitted towards the viewer, so that the viewer views the projection picture imaged on the imaging layer 20. Since the rear projection type imaging film is generally semi-transparent, it projects images by the transmission principle, and the grating structure layer 30 is semi-transparent, so that the viewer can see the scene behind the projection screen through the projection screen. When the ambient light from the front of the projection screen is obliquely incident on the projection screen, it reaches the grating microstructures 31 of the grating structure layer 30. Since the grating microstructure 31 is black and the grating microstructure 31 is thicker than the connecting portion 32, the grating microstructure 31 has a shielding and absorbing effect on ambient light, so that the ambient light is difficult to enter the imaging layer 20. Since the ambient light is hard to be incident on the imaging layer 20 to interfere with the projection imaging, the contrast of the projection screen is higher and the projection screen is displayed more clearly without being whitish and grayed.

The utility model discloses an anti light projection screen of horizontal grating structure, its grating structure layer 30 integrated into one piece does benefit to processing, and its grating microstructure 31 layer has the function of absorbing the ambient light, and consequently, projection picture display effect is better. The utility model discloses an anti light projection screen of horizontal grating structure has easily processing, with low costs, the good having a few of display effect, and it has very strong practicality.

Example 2

The basic structure of this embodiment is the same as that of embodiment 2, except that, as shown in fig. 4, a release film 40 is compounded on the surface of the imaging layer 20. The release film 40 is compounded on the imaging layer 20 by means of an adhesive 50, and can be torn off when in use, so that the whole transverse grating structure light-resistant projection screen can be adhered to a plane such as glass, a wall and the like.

While the invention has been described with reference to the above embodiments, the scope of the invention is not limited thereto, and the above components may be replaced with similar or equivalent elements known to those skilled in the art without departing from the concept of the invention.

Claims

1. A lateral grating structure light-resistant projection screen, comprising:

a transparent substrate layer (10);

an imaging layer (20) provided on one side of the transparent base material layer (10);

the grating structure layer (30) is arranged on the surface, opposite to the imaging layer (20), of the transparent substrate layer (10), the grating structure layer (30) is provided with a plurality of grating microstructures (31) which are protruding, and the grating microstructures (31) are spaced from each other and have a light absorption effect.

2. The lateral grating structure light-resistant projection screen of claim 1, wherein the grating structure layer (30) is formed of a translucent black material.

3. The lateral grating structure light-resistant projection screen of claim 1, wherein the grating structure layer (30) comprises the grating microstructures (31) and connecting portions (32) arranged between the grating microstructures (31), and the grating microstructures (31) and the connecting portions (32) are integrally formed.

4. The lateral grating structure light-resistant projection screen of claim 3, characterized in that the grating microstructures (31) are flush with a side surface of the connecting portion (32), which jointly adhere to the surface of the transparent substrate layer (10).

5. The lateral grating structure light-resistant projection screen of claim 3, characterized in that the grating microstructures (31) protrude from the surface of the connecting portion (32) on the side facing away from the transparent substrate layer (10).

6. The lateral grating structure light-resistant projection screen of claim 1, wherein the cross-section of the grating microstructures (31) is trapezoidal, triangular or arc-shaped.

7. The lateral grating structure light-resistant projection screen of claim 3, wherein the distance from the top of the grating microstructure (31) to the connecting portion (32) is 100-600 um, and the width of the bottom of the grating microstructure (31) is less than 200 um.

8. The lateral grating structure light-resistant projection screen of claim 1, wherein the surface of the grating structure layer (30) is frosted.

9. The lateral grating structure light-resistant projection screen of claim 1, wherein a release film (40) is laminated on a side of the imaging layer (20) facing away from the transparent substrate layer (10).