CN211577653U - Ultra-short-focus hard curtain - Google Patents

Abstract

The ultra-short-focus hard curtain is characterized by comprising a transparent PET film, a hard substrate layer and a transparent functional layer, wherein the transparent PET film is in a transparent film shape; the hard base material layer is made of hard materials; the transparent functional layer is made of transparent materials, a plurality of strip-shaped unit grooves are uniformly formed in the transparent functional layer, each unit groove is provided with a first inner wall perpendicular to the hard base material layer and a second inner wall inclined to the hard base material layer, the first inner wall and the second inner wall are adjacent to each other, a light absorption material is covered on the first inner wall, and a light reflection material is covered on the second inner wall; the transparent functional layer is compounded between the transparent PET film and the hard substrate layer. The utility model discloses a transparent functional layer both can be used for the reflection formation of image, can absorb the interference of environment light in order to reduce the environment light again, and its contrast that can improve the projection picture guarantees the display effect of projection picture. The utility model discloses an ultrashort burnt hard curtain is applicable to ultrashort burnt projection apparatus and just throws the use.

Description

Ultra-short-focus hard curtain

[ technical field ] A method for producing a semiconductor device

The utility model relates to a projection screen, in particular to ultrashort burnt hard curtain.

[ 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 to solve the above problems, and provides an ultrashort burnt hard curtain that can reduce ambient light interference.

In order to solve the problems, the utility model provides an ultra-short-focus hard curtain which is characterized in that the ultra-short-focus hard curtain comprises a transparent PET film, a hard substrate layer and a transparent functional layer, wherein the transparent PET film is in a transparent film shape; the hard base material layer is made of hard materials; the transparent functional layer is made of transparent materials, a plurality of strip-shaped unit grooves are uniformly formed in the transparent functional layer, each unit groove is provided with a first inner wall perpendicular to the hard base material layer and a second inner wall inclined to the hard base material layer, the first inner wall and the second inner wall are adjacent to each other, a light absorption material is covered on the first inner wall, and a light reflection material is covered on the second inner wall; the transparent functional layer is compounded between the transparent PET film and the hard substrate layer.

Further, the opening of the unit groove faces the hard base material layer.

Further, the first inner wall and the second inner wall of two adjacent unit grooves are spaced, the distance between the first inner wall and the second inner wall is 1-2 mm, and the width distance of the opening of each unit groove is 1-5 mm.

Further, the hard base material layer is made of a black material.

Further, the light absorption material is black ink, and the light reflection material is silver gray paint.

Further, the unit groove extends from one end of the transparent functional layer to the other end of the transparent functional layer along the transverse direction.

Further, an anti-glare layer is compounded on the surface of the transparent PET film.

The beneficial contributions of the utility model reside in that, it has effectively solved above-mentioned problem. The utility model discloses an ultrashort burnt curtain firmly is equipped with transparent functional layer, is equipped with the unit groove in the transparent functional layer, is equipped with the extinction material on the first inner wall in unit groove, can be used to absorb the ambient light, is equipped with the light reflection material on the second inner wall in unit groove, can be used to carry out the reflection imaging to projection light. The utility model discloses a transparent functional layer both can be used for the reflection formation of image, can absorb the interference of environment light in order to reduce the environment light again, and its contrast that can improve the projection picture guarantees the display effect of projection picture. The utility model discloses a hard curtain of ultrashort burnt is applicable to short burnt projection apparatus and just throws the use, and its range of application is extensive to have very strong practicality, should widely popularize.

[ description of the drawings ]

Fig. 1 is a schematic view of the structural principle of the present invention.

The anti-glare layer 1, the transparent PET film 2, the transparent functional layer 3, the unit groove 31, the first inner wall 311, the second inner wall 312, the hard substrate layer 4, the light absorption material 5, the light reflection material 6 and the projection equipment 7.

[ 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.

As shown in fig. 1, the ultra-short-focus hard curtain of the present invention includes a transparent PET film 2, a hard substrate layer 4, a transparent functional layer 3, and an anti-glare layer 1.

As shown in fig. 1, the anti-glare layer 1 is used to improve the scattering of light, and prevent the light from exiting in a single direction, so as to achieve the purpose of anti-glare. The anti-glare layer 1 is transparent, and the outermost surface of the anti-glare layer has certain roughness, so that the diffuse reflection of light can be enhanced. The inner side surface of the anti-glare layer 1 is a smooth flat surface and is used for being compounded with the transparent PET film 2. The antiglare layer 1 may be a known antiglare layer 1.

As shown in fig. 1, the transparent PET film 2 is transparent, which allows light to pass therethrough. The transparent PET film 2 is compounded on the inner side surface of the anti-glare layer 1.

As shown in fig. 1, the transparent functional layer 3 is compounded on the transparent PET film 2. The transparent functional layer 3 is made of a transparent material, such as a PET material, a PVC material, an EVA material, a PC material, a PMMA material, a TPU material, a glass material, and the like. The transparent functional layer 3 is provided with a plurality of strip-shaped unit grooves 31. The unit groove 31 is a hollow groove recessed in one side surface of the transparent functional layer 3. The opening of the cell groove 31 faces away from the transparent PET film 2 and toward the hard base material layer 4.

As shown in fig. 1, the unit groove 31 extends from one end of the transparent functional layer 3 to the other end thereof in a transverse direction. Two adjacent unit grooves 31 are spaced in parallel. The unit grooves 31 are uniform in size and are uniformly arranged.

As shown in fig. 1, the unit cell 31 has a right-angled triangle cross-section. The unit cell 31 is provided with a first inner wall 311 and a second inner wall 312. The first inner wall 311 and the second inner wall 312 are adjacent to each other, and an angle therebetween is an acute angle. The first inner wall 311 is perpendicular to the transparent PET film 2 and the hard base material layer 4. The second inner wall 312 is inclined to the transparent PET film 2 and the hard base material layer 4. The inclination angle of the second inner wall 312 can be set according to the attribute of the short-focus projection device 7, and when the angle between the second inner wall 312 and the first inner wall 311 is smaller, the focal length of the projection device 7 is shorter, and the setting position of the projection device 7 is closer to the projection screen.

As shown in fig. 1, a light absorbing material 5 is disposed on the first inner wall 311. The light absorbing material 5 is used to absorb ambient light to reduce ambient light interference. The light absorbing material 5 includes, but is not limited to, black ink, black paint, black colloid, black powder, or other dark colored material. In this embodiment, the light absorbing material 5 is black ink, and is coated on the first inner wall 311 by a known coating process. When the light absorbing material 5 is coated on the first inner wall 311, it forms a black opaque thin layer on the first inner wall 311.

As shown in fig. 1, a light reflective material 6 is disposed on the second inner wall 312. The light reflecting material 6 is used to reflect the projection light. The light reflecting material 6 can be selected according to the known technology, and materials with reflecting function can be selected as the light reflecting material 6, such as light bead materials, light color ink, metal paint and the like. In this embodiment, the light reflective material 6 is a silver gray metal coating, which is coated on the second inner wall 312 by a known process. When the light reflecting material 6 is coated on the second inner wall 312, it forms a thin silver gray opaque layer on the second inner wall 312.

It should be noted that the light absorbing material 5 and the light reflecting material 6 are relative terms, and the light absorbing material 5 means that the material has a far greater absorption capacity than the material has a reflection capacity for light, for example, a dark material generally has a far greater absorption capacity than the material has a reflection capacity for light. By light-reflecting material 6 is meant a material that reflects light far more and absorbs light, e.g. a light-colored material typically reflects light much more than absorbs light.

After the light absorbing material 5 and the light reflecting material 6 are coated on the inner walls of the unit grooves 31, ambient light can be absorbed and projected light can be reflected.

As shown in fig. 1, the distance between the unit grooves 31 is 1 to 2mm, specifically, the minimum distance between the first inner wall 311 and the second inner wall 312 of two adjacent unit grooves 31 is 1 to 2mm, and in this embodiment, it is preferably 1 mm. The width of the opening of the unit groove 31 is 1-5 mm, and in this embodiment, it is preferably 3 mm.

As shown in fig. 1, the hard base material layer 4 is laminated on the transparent functional layer 3, and the hard base material layer 4 closes the opening of the cell groove 31 in the transparent functional layer 3. In other words, the transparent functional layer 3 is located between the transparent PET film 2 and the hard base material layer 4, and the unit groove 31 of the transparent functional layer 3 opens toward the hard base material layer 4.

The hard substrate layer 4 is used for improving the overall hardness of the screen and for protection. Further, the hard substrate layer 4 can also be used for improving the surface performance of the screen.

The hard substrate layer 4 is made of a hard material, and the whole hard substrate layer is black and light-tight. The hard substrate layer 4 is made of materials including but not limited to PET materials, PVC materials, EVA materials, PC materials, PMMA materials, TPU materials, glass materials and the like.

Hard substrate layer 4 chooses for use the black material to make, is favorable to promoting projection screen display contrast, improves the projection display effect.

By this, just formed the utility model discloses an ultrashort burnt hard curtain: as shown in fig. 1, an antiglare layer 1, a transparent PET film 2, a transparent functional layer 3, and a hard substrate layer 4 are sequentially compounded, wherein the antiglare layer 1, the transparent PET film 2, and the transparent functional layer 3 are transparent and transparent, and the hard substrate layer 4 is opaque in black. The transparent functional layer 3 is provided with a unit groove 31, a first inner wall 311 of the unit groove 31 is coated with a light absorbing material 5, and a second inner wall 312 of the unit groove 31 is coated with a light reflecting material 6.

The ultra-short-focus hard curtain of the utility model is a front projection type projection screen, wherein, one side of the anti-glare layer 1 is the side watched by audiences, namely the front side; the side of the hard substrate layer 4 is the side facing away from the viewer, i.e., the back side.

The utility model discloses a use principle of the hard curtain of ultrashort burnt is as follows:

as shown in fig. 1, the short-focus projection device 7 is disposed at a position below the front side of the projection screen, and when the projection light emitted by the short-focus projection device 7 enters the ultra-short-focus hard screen, the projection light sequentially passes through the antiglare layer 1 and the transparent PET film 2 and enters the light reflective material 6 layer of the transparent functional layer 3, and is reflected by the light reflective material 6 toward the viewer, so that the projection light enters the human eyes to enable the user to view the image. The anti-glare layer 1 can improve the diffuse reflection effect of the emergent light, so that audiences at various positions can view an imaging picture.

Ambient light, such as light, is typically emitted from obliquely above the projection device 7. When the ambient light passes through the anti-glare layer 1 and the transparent PET film 2, the ambient light is emitted to the light absorption material 5 layer of the transparent functional layer 3 and is absorbed, so that the ambient light cannot enter human eyes as projection light, the interference of the ambient light such as sunlight and lamplight to projection imaging can be greatly reduced, the display effect of a projection picture can be improved, and the contrast and the brightness are improved. In addition, because the hard substrate layer 4 is black, when ambient light in other directions enters, the ambient light will pass through the antiglare layer 1, the transparent PET film 2 and the transparent functional layer 3 and enter the surface of the hard substrate layer 4 to be absorbed, so that the interference of the ambient light on projection imaging can be further reduced, and the display effect of a projection picture is further improved.

The utility model discloses a hard curtain of ultrashort burnt is applicable to short burnt projection equipment 7, and the interference of its reducible ambient light improves the display effect and the contrast of projection picture.

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 (7)

1. An ultra-short-focus hard curtain, comprising:

a transparent PET film (2) in the form of a transparent film;

a hard base material layer (4) made of a hard material;

the transparent functional layer (3) is made of transparent materials and uniformly provided with a plurality of strip-shaped unit grooves (31), the unit grooves (31) are provided with first inner walls (311) perpendicular to the hard base material layer (4) and second inner walls (312) inclined to the hard base material layer (4), the first inner walls (311) and the second inner walls (312) are adjacent, the first inner walls (311) are covered with light absorption materials (5), and the second inner walls (312) are covered with light reflection materials (6); the transparent functional layer (3) is compounded between the transparent PET film (2) and the hard base material layer (4).

2. The ultra-short-focus hard curtain as claimed in claim 1, wherein the opening of the unit groove (31) faces the hard substrate layer (4).

3. The ultra-short-focus hard curtain as claimed in claim 1, wherein the first inner wall (311) and the second inner wall (312) of two adjacent unit grooves (31) are spaced apart by a distance of 1-2 mm, and the width of the opening of the unit groove (31) is spaced apart by a distance of 1-5 mm.

4. The ultra-short-focus hard curtain as claimed in claim 1, wherein the hard substrate layer (4) is made of a black material.

5. Ultra short-focus hard screen according to claim 1, wherein the light absorbing material (5) is black ink and the light reflecting material (6) is silver gray paint.

6. Ultra short-focal hard curtain as claimed in claim 1, wherein said unit grooves (31) extend laterally from one end of said transparent functional layer (3) to the other end thereof.

7. The ultra-short-focus hard curtain as claimed in claim 1, wherein an anti-glare layer (1) is compounded on the surface of the transparent PET film (2).

Images