CN211454221U - Large-size front projection screen - Google Patents

Large-size front projection screen Download PDF

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CN211454221U
CN211454221U CN202020261779.3U CN202020261779U CN211454221U CN 211454221 U CN211454221 U CN 211454221U CN 202020261779 U CN202020261779 U CN 202020261779U CN 211454221 U CN211454221 U CN 211454221U
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micro
substrate layer
layer
projection
projection screen
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涂祥元
杨大海
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Guochuang Video Guangzhou Technology Co ltd
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Guochuang Video Guangzhou Technology Co ltd
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Abstract

A large-size projection screen comprises a first substrate layer, a second substrate layer, a micro-groove structure layer and a transparent microstructure, wherein the micro-groove structure layer is made of a transparent material and is compounded on the first substrate layer; the micro-groove structure layer is uniformly provided with a plurality of strip-shaped micro grooves, the cross sections of the micro grooves are isosceles trapezoids, the inner walls of the micro grooves are provided with light-reflecting materials, and the openings of the micro grooves deviate from the first substrate layer and face the second substrate layer; the transparent microstructure is made of transparent material and is filled in the micro groove to form an embedded structure with the micro groove structure layer. The utility model discloses a jumbo size is just throwing formula projection screen has two reflection angles, can set up two projection equipment at least and carry out the projection and use. The utility model discloses a jumbo size is just throwing formula projection screen can satisfy super large-size projection screen's projection demand to improve the degree of consistency and the display effect of projection picture, can divide the screen to use as required in addition, it uses the flexibility ratio high, and has very strong practicality, should widely popularize.

Description

Large-size front projection screen
[ technical field ] A method for producing a semiconductor device
The utility model relates to a projection screen, in particular to jumbo size is projection screen just throwing formula.
[ 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.
For the existing large-size projection screen, the large-size projection screen is generally suitable for being used by a single projection device. Due to the fact that the size of a projection screen is large, when a single projection device projects, due to the fact that the projection angle and the projection capacity are insufficient, the problem that a projection picture is not uniform often occurs, and the phenomena that the projection picture is gray and white, and the picture is not clear and bright enough often occur. Therefore, the existing large-size projection screen needs to be further improved to improve the projection picture effect.
[ Utility model ] content
The utility model aims at solving the above problem, and provides a jumbo size front projection screen that is applicable in many projection equipment, and the projection picture is even clear.
In order to solve the above problems, the present invention provides a large-sized projection screen, which comprises a transparent first substrate layer, a non-transparent second substrate layer, a micro-groove structure layer and a transparent microstructure, wherein the micro-groove structure layer is made of a transparent material and is composited on the first substrate layer; the micro-groove structure layer is uniformly provided with a plurality of strip-shaped micro grooves, the cross sections of the micro grooves are isosceles trapezoids, the inner walls of the micro grooves are provided with reflecting materials, and the openings of the micro grooves deviate from the first substrate layer and face the second substrate layer; the transparent microstructure is made of transparent materials and is filled in the micro groove to form an embedded structure with the micro groove structure layer.
Further, the miniature groove comprises a first inner wall, a second inner wall and a third inner wall, the first inner wall is parallel to the first base material layer and the second base material layer, the second inner wall and the third inner wall are symmetrically arranged, and the second inner wall and the third inner wall are respectively inclined to the first base material layer and the second base material layer.
Further, the tip looks interval of the second inner wall of two adjacent miniature recesses and third inner wall, its spaced distance is 1 ~ 2mm, the width distance of the opening of miniature recess is 1 ~ 5 mm.
Further, the micro grooves are uniform in size and spaced at a uniform distance.
Further, the second base material layer is made of a black material.
Further, the light reflecting material comprises one of a light micro-bead material, light-colored ink and metal paint.
Further, the micro groove extends from one end of the micro groove structure layer to the other end of the micro groove structure layer along the transverse direction.
Further, an anti-glare layer is compounded on the surface of the first substrate layer.
Further, the surface of the transparent microstructure is flush with the surface of the micro-groove structure layer; the transparent microstructures and the micro-groove structure layer are formed between the first substrate layer and the second substrate layer.
Further, the manufacturing material of the first substrate layer, the second substrate layer, the micro-groove structure layer and the transparent microstructure comprises one of a PET material, a PVC material, an EVA material, a PC material, a PMMA material, a TPU material and a glass material.
The beneficial contributions of the utility model reside in that, it has effectively solved above-mentioned problem. The utility model discloses a big size orthographic projection screen is provided with a micro-groove structure layer, a micro-groove is arranged in the micro-groove structure layer, the cross section of the micro-groove is isosceles trapezoid, and a reflective material is arranged on the inner wall of the micro-groove, which can reflect and image projection light; because miniature recess is isosceles trapezoid, consequently the utility model discloses a jumbo size is just throwing formula projection screen has two reflection angle to can set up two projection equipment at least and carry out the projection and use. The utility model discloses a jumbo size is just throwing formula projection screen can satisfy super large-size projection screen's projection demand to improve the degree of consistency and the display effect of projection picture, can divide the screen to use as required in addition, it uses the flexibility ratio high, and has very strong practicality, should widely popularize.
[ description of the drawings ]
Fig. 1 is a schematic view of the structural principle of the present invention.
Fig. 2 is a schematic diagram of a micro-groove structure layer.
Fig. 3 is a schematic view of the usage principle of the present invention.
The micro-groove structure comprises a first substrate layer 1, a micro-groove structure layer 2, a micro-groove 21, a first inner wall 211, a second inner wall 212, a third inner wall 213, a transparent microstructure 3, a second substrate layer 4, a reflective material 5, an anti-glare layer 6, a first projection device 71 and a second projection device 72.
[ 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. 1-3, the large-size front projection screen of the present invention includes a first substrate layer 1, a second substrate layer 4, a micro-groove structure layer 2, a transparent microstructure 3, and an anti-glare layer 6.
As shown in fig. 1 to 3, the anti-glare layer 6 is used to improve light scattering and prevent light from being emitted in a single direction, so as to achieve the purpose of anti-glare. The anti-glare layer 6 is transparent, and the outermost surface of the anti-glare layer has certain roughness, so that diffuse reflection of light can be enhanced. The inner side surface of the anti-glare layer 6 is a smooth flat surface, and the anti-glare layer is used for being compounded with the first base material layer 1. The antiglare layer 6 may be a known antiglare layer 6.
As shown in fig. 1 to 3, the first substrate layer 1 is transparent and allows light to pass through. The first substrate layer 1 is compounded on the inner side surface of the anti-glare layer 6. The first substrate layer 1 is made of a material including but not limited to one of a PET material, a PVC material, an EVA material, a PC material, a PMMA material, a TPU material and a glass material. In this embodiment, the first substrate layer 1 is made of a PET material.
As shown in fig. 1 to 3, the micro-groove structure layer 2 is compounded on the first substrate layer 1. The micro-groove structure layer 2 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. In this embodiment, the micro-groove structure layer 2 is made of PC material.
The micro-groove structure layer 2 is provided with a plurality of strip-shaped micro grooves 21. The micro grooves 21 are hollow grooves, and can be used for filling the reflective material 5 and the transparent microstructures 3. The micro groove 21 is recessed in one side surface of the micro groove structure layer 2. The opening of the micro groove 21 faces away from the first substrate layer 1 and faces toward the second substrate layer 4.
As shown in fig. 1 to 3, the micro grooves 21 extend from one end of the micro groove structure layer 2 to the other end thereof in the transverse direction. Two adjacent micro grooves 21 are spaced in parallel. The micro grooves 21 are uniform in size and are uniformly arranged.
As shown in fig. 1 to 3, the cross section of the micro groove 21 is an isosceles trapezoid, which is provided with a first inner wall 211, a second inner wall 212 and a third inner wall 213. The first inner wall 211 is parallel to the first substrate layer 1 and the second substrate layer 4. The second inner wall 212 and the third inner wall 213 are symmetrically arranged. The second inner wall 212 and the third inner wall 213 are inclined to the first substrate layer 1 and the second substrate layer 4, respectively. The tilt angles of the second inner wall 212 and the third inner wall 213 can be set according to the size of the projection screen and the focal length of the projection device.
As shown in fig. 1 to 3, a reflective material 5 is disposed on an inner wall of the micro groove 21. The reflective material 5 is used to reflect the projection light. The reflective material 5 can be selected by referring to the known technology, and materials with reflection function can be selected as the reflective material 5, such as light bead materials, light-colored ink, metal paint and the like. In this embodiment, the reflective material 5 is a silver gray metal coating, which is coated on the first inner wall 211, the second inner wall 212, and the third inner wall 213 by a known process. When the reflective material 5 is coated on the inner wall of the micro groove 21, it forms a silver gray opaque thin layer on the inner wall of the micro groove 21.
It should be noted that the reflective material 5 means a material having a reflection capability for light and an absorption capability for light, for example, a light-colored material generally has a reflection capability for light much larger than an absorption capability for light.
After the inner wall of the micro groove 21 is coated with the reflective material 5, the projection light can be reflected. Because the micro-groove 21 has the second inner wall 212 and the third inner wall 213 which are symmetrically arranged, the projection device can be symmetrically distributed at the upper and lower positions for projection, thereby meeting the projection requirement of the oversized projection screen.
As shown in fig. 1 to 3, the distance between the micro grooves 21 is 1 to 2mm, specifically, the distance between the ends of the second inner wall 212 and the third inner wall 213 of two adjacent micro grooves 21 ranges from 1 to 2mm, and in this embodiment, it is preferably 1 mm. The width range of the opening of the micro-groove 21 is 1-5 mm, and in the embodiment, the width range is preferably 3 mm.
The transparent microstructure 3 is made of a transparent material, such as one of a PET material, a PVC material, an EVA material, a PC material, a PMMA material, a TPU material, and a glass material. The transparent microstructures 3 are filled in the micro grooves 21 to form a mosaic structure with the micro groove structure layer 2. In specific implementation, after the reflective material 5 is coated on the inner wall of the micro groove 21, and after the reflective material 5 is dried, the fluid material used by the transparent microstructure 3 is filled in the micro groove 21, and after the fluid material is cured, the transparent microstructure 3 can be formed.
After the transparent microstructure 3 and the micro-groove structure layer 2 form an embedded structure, the surface of the transparent microstructure 3 is flush with the surface of the micro-groove structure layer 2.
As shown in fig. 1 to fig. 3, the second substrate layer 4 is compounded on the micro-groove structure layer 2 and the transparent microstructure 3. In other words, the mosaic structure of the micro-groove structure layer 2 and the transparent microstructures 3 is located between the first substrate layer 1 and the second substrate layer 4, and the surface of the transparent microstructures 3 is attached to the second substrate layer 4.
The second substrate layer 4 is used to improve the overall hardness of the screen and to protect the screen. Further, the second substrate layer 4 can also be used for improving the surface performance of the screen.
The second substrate layer 4 is black and opaque. The second substrate layer 4 is made of a material including but not limited to a PET material, a PVC material, an EVA material, a PC material, a PMMA material, a TPU material, a glass material and the like.
Second substrate layer 4 chooses for use the black material to make, is favorable to promoting projection screen display contrast, improves the projection display effect.
The thicknesses of the first substrate layer 1 and the second substrate layer 4 can be set according to requirements, and the hardness can be set according to requirements; when first substrate layer 1 and second substrate layer 4 are thinner, the utility model discloses a jumbo size is just throwing formula projection screen for the soft curtain, and it can curl the rolling. For a large-size projection screen, the projection screen is preferably configured as a soft curtain for convenient transportation and installation, and therefore, in this embodiment, the first substrate layer 1 and the second substrate layer 4 are preferably flexible thin layers, and have certain hardness, so that a protection effect can be achieved, the projection screen can be prevented from being damaged, and the projection screen can be curled.
By this, just formed the utility model discloses a jumbo size is just throwing formula projection screen: as shown in fig. 1 to 3, the antiglare layer 6, the first substrate layer 1, the micro-groove structure layer 2, and the second substrate layer 4 are sequentially combined, wherein the antiglare layer 6, the first substrate layer 1, and the micro-groove structure layer 2 are transparent, and the second substrate layer 4 is opaque. The micro-groove structure layer 2 is provided with a micro-groove 21, the inner wall of the micro-groove 21 is coated with a reflective material 5, and the micro-groove 21 is filled with a transparent micro-structure 3.
The large-size front projection type projection screen of the utility model is a front projection type projection screen, wherein, one side of the anti-glare layer 6 is the side watched by audiences, namely the front side; the second substrate layer 4 side is the side facing away from the viewer, i.e. the back side. The utility model discloses a jumbo size is just throwing formula projection screen both can be applicable to short burnt projection equipment, also can be applicable to long burnt projection equipment.
The utility model discloses a jumbo size is thrown formula projection screen's theory of use as follows:
because the cross section of the micro groove 21 is isosceles trapezoid, and the micro groove has the first inner wall 211 and the second inner wall 212 which are symmetrically arranged, the micro groove can well reflect projection light rays emitted by projection equipment from different directions. Therefore, the position of the projection equipment can be set according to projection requirements, and the projection equipment with double machine positions or four machine positions can be set so as to meet the projection requirements of a large-size projection screen.
In use, the first projection device 71 may be disposed in front of and above the projection screen and the second projection device 72 may be disposed in front of and below the projection screen. The first projection device 71 and the second projection device 72 are symmetrical with respect to the central axis L of the projection screen. The projection light emitted by the first projection device 71 sequentially passes through the antiglare layer 6 and the first substrate layer 1 and is incident on the reflective material 5 on the second inner wall 212 of the micro-groove structure layer 2, and is reflected out towards the audience direction after being reflected by the reflective material 5, so that the projection light is incident into human eyes to enable a user to watch an imaging picture. The projection light emitted by the second projection device 72 sequentially passes through the antiglare layer 6 and the first substrate layer 1 and is incident on the reflective material 5 on the third inner wall 213 of the micro-groove structure layer 2, and is reflected by the reflective material 5 and then is reflected towards the audience, so that the projection light is incident on human eyes to enable a user to watch an imaging picture. The projection light rays emitted by the first projection device 71 and the second projection device 72 are reflected and imaged by different reflecting surfaces, so that the device is more flexible in practical application.
When the contents of the first projection device 71 and the second projection device 72 are completely the same, the projection lights reflected by the reflective materials 5 on the second inner wall 212 and the third inner wall 213 will be overlapped, so that the amount of the emergent light is increased, and the projection picture viewed by the viewer is brighter and has higher contrast. Use two projection equipment to carry out the projection, when comparing in single projection equipment projection, can strengthen projection display effect for the projection picture is brighter more clear. In addition, when the size of the projection screen is overlarge, the projection capacity of a single projection device is limited, the light loss amount of the single projection device is large, the projection picture is displayed unevenly due to the limitation of the reflection angle, and the two projection devices are used for projecting from different directions, so that the light amount can be increased, and the projection picture is more even.
When a plurality of projection screens need to be displayed in a split-screen manner, the first projection device 71 and the second projection device 72 can display different contents, for example, the first projection device 71 occupies the upper half screen of the projection screen for projection imaging, and the second projection device 72 occupies the lower half screen of the projection screen for projection imaging; or the first projection device 71 occupies the left half screen of the projection screen for projection imaging, and the second projection device 72 occupies the right half screen of the projection screen for projection imaging.
In addition, because the second substrate layer 4 is black, when ambient light in other directions enters, the ambient light will pass through the antiglare layer 6, the first substrate layer 1 and the micro-groove structure layer 2 and enter the surface of the second substrate layer 4 to be absorbed, so that the interference of the ambient light on projection imaging can be reduced, and the display effect of a projection picture is further improved.
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 (10)

1. A large size front projection screen, comprising:
a first base material layer (1) which is transparent;
a second base material layer (4) which is non-transparent;
the micro-groove structure layer (2) is made of transparent materials and is compounded on the first substrate layer (1); the micro-groove structure layer (2) is uniformly provided with a plurality of strip-shaped micro grooves (21), the cross sections of the micro grooves (21) are isosceles trapezoids, the inner walls of the micro grooves (21) are provided with light-reflecting materials (5), and the openings of the micro grooves (21) deviate from the first substrate layer (1) and face the second substrate layer (4);
and the transparent micro structure (3) is made of transparent materials, is filled in the micro groove (21) and forms an embedded structure with the micro groove structure layer (2).
2. The large-size front projection screen of claim 1, wherein the micro-grooves (21) comprise a first inner wall (211), a second inner wall (212) and a third inner wall (213), the first inner wall (211) is parallel to the first substrate layer (1) and the second substrate layer (4), the second inner wall (212) and the third inner wall (213) are symmetrically arranged, and the second inner wall (212) and the third inner wall (213) are respectively inclined to the first substrate layer (1) and the second substrate layer (4).
3. The large-size front projection screen of claim 2, wherein the ends of the second inner wall (212) and the third inner wall (213) of two adjacent micro grooves (21) are spaced apart by a distance of 1-2 mm, and the width of the opening of the micro groove (21) is 1-5 mm.
4. A large size front projection screen according to claim 1 wherein each of the micro-grooves (21) is of uniform size and spaced apart by a uniform distance.
5. The large-size front projection screen according to claim 1, wherein the second substrate layer (4) is made of a black material.
6. The large format front projection screen of claim 1 wherein the reflective material (5) comprises one of a photo microbead material, a light ink, a metallic paint.
7. The large-size front projection screen according to claim 1, wherein the micro-grooves (21) extend from one end of the micro-groove structure layer (2) to the other end thereof in a lateral direction.
8. The large-size front projection screen according to claim 1, wherein an antiglare layer (6) is compounded on the surface of the first substrate layer (1).
9. The large-size front projection screen according to claim 1, wherein the surface of the transparent microstructure (3) is flush with the surface of the micro-groove structure layer (2); the transparent microstructures (3) and the micro-groove structure layer (2) are formed between the first substrate layer (1) and the second substrate layer (4).
10. The large-size front projection screen of claim 1,
the manufacturing materials of the first substrate layer (1), the second substrate layer (4), the micro-groove structure layer (2) and the transparent microstructure (3) comprise one of PET materials, PVC materials, EVA materials, PC materials, PMMA materials, TPU materials and glass materials.
CN202020261779.3U 2020-03-05 2020-03-05 Large-size front projection screen Active CN211454221U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020261779.3U CN211454221U (en) 2020-03-05 2020-03-05 Large-size front projection screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020261779.3U CN211454221U (en) 2020-03-05 2020-03-05 Large-size front projection screen

Publications (1)

Publication Number Publication Date
CN211454221U true CN211454221U (en) 2020-09-08

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Country Status (1)

Country Link
CN (1) CN211454221U (en)

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