WO2019095534A1

WO2019095534A1 - Screen and manufacturing method thereof

Info

Publication number: WO2019095534A1
Application number: PCT/CN2018/071442
Authority: WO
Inventors: 张红秀; 胡飞; 李屹
Original assignee: 深圳光峰科技股份有限公司
Priority date: 2017-11-15
Filing date: 2018-01-04
Publication date: 2019-05-23
Also published as: CN109814327A; CN109814327B

Abstract

An object of the present invention is to provide a screen, comprising a plurality of light absorption layers for absorbing ambient light and a plurality of reflection layers for reflecting projection light. The light absorption layers are of the same quantity as the reflection layers. The respective light absorption layers and the corresponding reflection layers form prismatic structures. The prismatic structures are stacked to form a serrated structure on a viewing surface.

Description

Screen and its making method

Technical field

The invention relates to a screen and a method of fabricating the same.

Background technique

Currently, the demand for projection screens under normal lighting conditions is relatively large. However, the projection screen itself used in darkroom conditions has its own limitations. For example, ambient light can have a large effect on the quality of the projected image, possibly reducing image contrast. Although a high-intensity projection light source can reduce the influence of ambient light and improve contrast, one of the disadvantages of a high-intensity light source is that it does not save energy, and more importantly, a high-intensity light source is liable to have a very glaring disadvantage.

In this case, the Black Grid Projection Screen is a next-generation optical screen designed specifically for high-brightness environments. In the black grid projection screen, the side of the prism constituting the screen facing the ambient light is blackened to form a light absorbing layer, and a reflective layer is coated on the side facing the projection light, thereby suppressing interference of ambient light. However, the size of the prism structure is substantially on the order of micrometers, and the purpose of selectively coating the reflective layer and the light absorbing layer on both sides of the prism is not easily achieved in this size range. Moreover, there is a problem of cross interference between the light absorbing layer and the reflective layer formed by selective coating, and a distinct light absorbing layer and a reflective layer cannot be formed.

Patent Document 1: US7262911B2

Patent Document 2: US2009046361

For example, Patent Document 1 mentions a method of forming a reflective layer on a micro rib of a black grid screen, which forms a coating of a reflective layer by spraying, coating or dip coating.

Patent Document 2 provides a reflective light-resistant curtain in which a diffusion-reflecting film is formed by coating or vapor deposition on one surface of a micro-protrusion of a transparent prism.

In Patent Documents 1 and 2, the reflective layer on the black grid screen is formed by coating or spraying, but as described above, the reflective layer and the light absorbing layer formed by this method have a problem of mutual cross interference.

Other anti-light curtains for black grid screen structures and prism structures mostly mention the preparation of light absorbing layers and reflective layers by spraying, evaporation, and the like. However, the conventional film preparation method such as spraying, vapor deposition or the like cannot form a reflection layer or a light absorbing layer only on one surface of the micron-sized micro ribs. For the spraying method, since the paint particles ejected from the nozzle have a problem of serious divergence, it is impossible to cover only one side of the micro ribs, and the reflection and light absorbing portions formed by these conventional methods overlap and interfere with each other. The problem.

Summary of the invention

In order to solve the above problems, the present invention is intended to provide a novel prismatic light-resistant projection screen (hereinafter simply referred to as "screen") structure having a simple preparation method and capable of achieving high contrast and a method of manufacturing the same.

According to an embodiment of the invention, a screen is disclosed comprising a plurality of light absorbing layers absorbing ambient light and a plurality of reflective layers reflecting the projected light, the light absorbing layer and the reflective layer being equal in number, each of the light absorbing The layer and each of the reflective layers form a prismatic structure as a unit, and the prismatic structures are laminated to form a zigzag structure on the viewing surface.

According to still another embodiment of the present invention, a method of fabricating a screen includes the steps of: forming a light absorbing layer having a light absorbing surface facing the ambient light, wherein the light absorbing layer is formed at a width of the screen a first prism structure extending in a direction, and the first prism structure has at least two first prism faces perpendicular to a viewing surface of the screen and parallel to each other; forming a reflective layer having a reflective surface facing the projection light, wherein The reflective layer is formed as a second prism structure extending in a width direction of the screen, and the second prism structure has at least two second prism faces perpendicular to a viewing surface of the screen and parallel to each other; And in a height direction of the screen, wherein the light absorbing layer is located on the reflective layer such that the first prism surface fits the adjacent second prism surface, thereby causing one of the light absorbing layers And one of the reflective layers forming a prismatic structure as a unit, and the plurality of prismatic structures are laminated and pressed together to form a zigzag structure on the viewing surface

In a preferred embodiment, the light absorbing layer material is formed by adding a light absorbing component to the light absorbing layer base material, and the light absorbing layer material is formed by molding the light absorbing layer material, and wherein the light absorbing layer is formed in the light reflecting layer base material. The reflective particles are added to form a reflective layer material, and the reflective layer is formed by molding the reflective layer material.

In another preferred embodiment, the light absorbing layer base material is shaped, and a light absorbing material is coated on the formed light absorbing layer base material to form the light absorbing layer and wherein the light reflecting layer base material is formed, and A reflective material is coated on the reflective layer substrate raw material after molding to form the reflective layer.

As described above, the screen according to the present invention and the method of manufacturing the same have at least the following advantages:

(1) Since the reflective layer having the retroreflective function and the light absorbing layer having the light absorbing function are formed first in the present invention, and then laminated by lamination to form a screen having a light-resistant function, the manufacturing process is simple and the light-resisting effect is good. ;

(2) Since the light absorbing layer and the reflective layer are integrated by the press-forming type in the present invention, the solidity of the screen of the integrally formed zigzag structure is apparently better from the viewpoint of firmness;

(3) Since the reflective layer and the light absorbing layer are respectively formed in the present invention, and the reflective layer and the light absorbing layer are laminated and integrated into one body, the light absorbing layer caused by coating the reflective layer or the like in the prior art manufacturing process is solved. The problem of cross interference with the reflective layer;

(4) enables the projection light to be better diffused and reflected, thereby making the picture more uniform and eliminating glare;

(5) controlling the surface structure of the reflective layer to achieve the effect of controlling the angle of view;

(6) In the process of using the screen, if the screen portion is damaged, the separately formed reflective layer or the light absorbing layer can be used to replace only the damaged portion without replacing the entire screen, thus saving maintenance costs.

It should be understood that the beneficial effects of the present invention are not limited to the above effects, but may be any of the advantageous effects described herein.

DRAWINGS

1 is a perspective view showing a screen of an embodiment of the present invention.

2 is a cross-sectional view showing a screen in a height direction according to an embodiment of the present invention.

FIG. 3 is a cross-sectional view showing the screen in FIG. 1 in the height direction.

4 is a perspective view showing a screen of an embodiment of the present invention.

Figure 5 is a perspective view showing a single reflective layer and a light absorbing layer in the screen of Figure 2, respectively.

6a-6c are cross-sectional views showing a screen in a height direction according to an embodiment of the present invention.

Figure 7 is a cross-sectional view showing the screen in the height direction of an embodiment of the present invention.

Figure 8 is a cross-sectional view showing the screen in the height direction according to an embodiment of the present invention.

Detailed ways

Hereinafter, various embodiments in accordance with the present invention will be described in detail with reference to the accompanying drawings. It is to be emphasized that all the dimensions in the drawings are only schematic and are not necessarily illustrated in a true scale, and thus are not limiting. For example, it should be understood that the dimensions, proportions, and angles of the components of the reflective layer, the light absorbing layer, and the substrate in the drawings are not shown in actual size and scale, and are merely for convenience of illustration, but are not intended to limit the present. The specific scope of the invention.

As shown in FIG. 1, the screen 100 of the present invention comprises a plurality of light absorbing layers 101 for absorbing ambient light and a plurality of reflective layers 102 for reflecting projected light. The number of light absorbing layers 101 and reflecting layers 102 is equal, and each light absorbing layer 101 and Each of the reflective layers 102 forms a prismatic structure as a unit, and the prismatic structures are laminated to form a zigzag structure on the viewing surface.

It should be noted that the viewing surface of the present invention is understood to be a continuous flat surface. When the screen is a linear screen as shown in FIG. 1, the viewing surface is perpendicular to that shown in FIG. 2 and/or FIG. The cross section and the vertical plane parallel to the height direction of the screen. When the screen is a profiled screen having a curved surface as shown in FIG. 4, the viewing surface is a continuously flat curved surface.

The screen of the present invention is capable of achieving a better light resistance effect and is capable of preventing a portion of ambient light from reaching the eyes of the viewer. As shown in FIGS. 2 and 3, in some embodiments, the cross-sectional shape of the light absorbing layer 101 has four sides and four vertices, wherein the upper base and the lower base are parallel to each other and perpendicular to the height direction of the screen.

1 and 5, the above four sides and four vertices extend in the width direction of the screen 100 (in the directions of FIG. 2 and FIG. 3, the width direction is perpendicular to the plane of the paper), so that it is possible to obtain It is understood that the light absorbing layer 101 is formed as a prism structure having four faces and four edges extending in the width direction, and for the upper bottom edge and the lower bottom edge parallel to each other in the cross-sectional shape, the upper portion in the prism structure The bottom surface and the bottom bottom surface are also parallel to each other and perpendicular to the viewing surface of the screen.

Similarly, the reflective layer 102 is also formed to have a prismatic structure which may be the same as or different from the prismatic structure of the light absorbing layer. In FIGS. 1 and 5, the prism structure of the reflective layer 102 has four edges extending in the width direction of the screen, and has two prism faces perpendicular to the viewing surface of the screen and parallel to each other.

When the light absorbing layer 101 and the reflective layer 102 are alternately stacked, the adjacent and parallel prism faces of the light absorbing layer 101 and the reflective layer 102 are bonded to form a light absorbing layer 101 and a reflective layer 102 as a unit. A prismatic structure in which a plurality of such prismatic structural units are sequentially arranged along the height direction of the screen to form a zigzag structure of the screen surface. The two prism faces that are attached have the same length in the cross-sectional view of the screen in the height direction.

Although the prism structures of the light absorbing layer 101 and the reflective layer 102 have four edges and two prism faces parallel to each other in FIGS. 2 and 3, as can be seen from the modification shown in FIG. 6a, the light absorbing layer 101 can also have five strips. The edge can even be three edges. However, the present invention is not limited thereto, and the prism structure of the light absorbing layer 101 and the reflective layer 102 may include at least three edges, and at least one of the edges may be attached so that the light absorbing layer 101 and the reflective layer 102 form a prismatic structure. Any shape that meets the requirements of the stacked combination described in other portions of the invention.

That is, the light absorbing layer 101 is a first prism extending in the width direction of the screen 100, and the reflective layer 102 is a second prism extending in the width direction of the screen 100.

In some embodiments, the first prism has at least two first prism faces that are perpendicular to the viewing surface and parallel to each other; the second prism has at least two second prism faces that are perpendicular to the viewing surface and parallel to each other.

In addition, as shown in FIG. 6b, the light absorbing layer and the reflective layer may be formed into a prismatic structure having a trapezoidal cross-sectional view. As shown in FIG. 6c, the light absorbing layer and the reflective layer may be formed into a prismatic structure having a rectangular cross section.

Further, although the light absorbing layer 101 and the reflective layer 102 formed in a linear prism shape are described in FIG. 1, as shown in an embodiment of FIG. 4, the light absorbing layer and the reflective layer may be formed in a shape having curved prisms. The material described in the present invention can form the light absorbing layer and the reflective layer to have a curved shape. The screen thus formed is a curved screen having a curvature, which enables the user to obtain a better sense of presence and three-dimensionality.

It should be noted that when the screen is a curved screen having a curvature, the width direction should be the direction of the isolated line.

Next, the screen structure of the present invention will be described with reference to Figs. 2 and 5. It should be noted that the specific structures in the drawings are only used to illustrate the present invention, but are not intended to limit the concept of the present invention.

As shown in FIG. 2 and FIG. 3, in some embodiments, the first prism in which the light absorption layer 101 is located has a first right-angled trapezoidal shape along the height direction of the screen, and the second prism on which the reflective layer 102 is located along the screen. The sections in the height direction each have the shape of a second right-angled trapezoid. At this time, the first prism and the second prism are both quadrangular prisms. Wherein, the lower base side length of the first right angle trapezoid is equal to the upper base side length of the second right angle trapezoid, the lower base side length of the first right angle trapezoid is longer than the upper side of the first right angle trapezoid, and the upper base of the second right angle trapezoid The length is greater than the length of the lower right side of the second right angle trapezoid.

In the cross-sectional view of an embodiment shown in FIG. 2, the light absorbing layer 101 and the reflective layer 102 have the following shape of a right-angled trapezoid, that is, the upper base length a and the reflection in the right-angled trapezoid of the light-absorbing layer 101 adjacent to the right angle. The right-angled trapezoid of the layer 102 is the same as the lower base length a adjacent to the right angle, and the lower base length b adjacent to the right angle in the right-angled trapezoid of the light-absorbing layer 101 and the upper base adjacent to the right angle in the right-angled trapezoid of the reflective layer 102 The side lengths b are the same, and the height c of the right-angled trapezoid of the light-absorbing layer 101 is also the same as the height d of the right-angled trapezoid of the reflective layer 102, wherein the sides having the heights c and d are perpendicular to the upper and lower bases of the trapezoid.

As can be seen from the perspective view shown in FIG. 5, the lower surface of the light absorbing layer 101 forms an angle α with the light absorbing surface 103, and the upper surface of the reflective layer 102 forms an angle β with the light reflecting surface 104. The light absorbing layer 101 and the reflective layer 102 in the cross-sectional view shown in Fig. 2 also have the same angles α and β. In practical applications, the heights c, d and the angles α and β can be adjusted according to parameters such as projection distance, screen size, and projector height to achieve an optimal effect.

In the screen cross-sectional view shown in FIG. 2, the sum c+d of the heights of the right-angled trapezoids of the light absorbing layer 101 and the reflective layer 102 is the size of one period of the screen, and the sum of the heights c+d is 30-300 μm. In the range, it is preferably in the range of 50 to 200 μm. The upper base length a of the right-angled trapezoid of the light absorbing layer and the lower base length a of the right-angled trapezoid of the reflective layer are in the range of 0.1 mm to 0.5 mm, preferably in the range of 0.125 mm to 0.3 mm. The lower base length b of the right-angled trapezoid of the light absorbing layer and the upper base length b of the right-angled trapezoid of the reflective layer are in the range of 80 to 500 μm, preferably in the range of 100 to 300 μm. In the present invention, the magnitude relationship between the side length a and the side length b in the right-angled trapezoid of the light absorbing layer and the reflective layer is such that the value of b-a is in the range of 20 to 150 μm, preferably in the range of 30 to 100 μm.

Further, the prism structure of the light absorbing layer 101 and the reflective layer 102 has a length e in the width direction of the screen (ie, a direction perpendicular to a plane in which the upper base and the lower base of the right-angled trapezoid are located), the light absorbing layer 101 and the reflective layer 102. The lengths e of the four sides along the width direction of the screen are equal and equal to the width of the screen.

Since the light absorbing layer 101 has the light absorbing surface 103 facing the ambient light, the ambient light incident from above can be absorbed, and the reflective layer 102 has the light reflecting surface 104 facing the projection signal light, and the light of the projection signal is incident on the light reflecting surface 104 from the bottom to the top. Therefore, in order to ensure the effect of the screen reflecting the projected picture, as shown in FIGS. 2 and 3, the height of the first right-angled trapezoid is not greater than the height of the second right-angled trapezoid, that is, c≤d. When c>d, the quality of the projected image of the screen is deteriorated, and even the light absorbing layer absorbs the projected light. In this case, the user may observe a degraded image with a stripe shape on the screen. Thereby feeling a bad viewing effect.

The light absorbing layer base material of the light absorbing layer 101 and the light reflecting layer base material of the reflective layer 102 may be materials such as PET (polyethylene terephthalate), PC (polycarbonate), polymethyl methacrylate (PMMA), and the like. The light absorbing layer base material and the light reflecting layer base material may be the same material or different materials.

In the present invention, the screen is formed by the following method:

A light absorbing layer is formed. The light absorbing layer can be formed by adding a light absorbing component (for example, carbon black) to the light absorbing layer base material to obtain a light absorbing layer material, and then molding the light absorbing layer material to which the light absorbing component is added to form a light absorbing layer having the above shape. . Further, the light absorbing layer may be formed by another method of molding the light absorbing layer base material, and applying a light absorbing material to the formed light absorbing layer base material to form a light absorbing layer having the above shape.

A reflective layer is formed. The reflective layer can be formed by adding reflective particles to the base material of the light-reflecting layer to obtain a light-reflecting layer material, and then molding the light-reflecting layer material to which the reflective particles are added to form a reflective layer having the above shape. Further, the light-reflecting layer may be formed by another method of molding the light-reflecting layer base material, and coating the light-reflecting layer base material after the molding with a light-reflecting material to form a reflective layer having the above shape.

In the preparation method of the present invention, the light absorbing layer and the reflective layer are separately formed, and the lower surface of the light absorbing layer is applied to the upper surface of the reflective layer in such a manner that the light absorbing layer is on the reflective layer, so that one light absorbing layer and one reflective layer are used as One unit forms a prismatic structure, and then a plurality of the prismatic structures are laminated and pressed together in the height direction of the screen to form a zigzag structure on the viewing surface of the screen. Therefore, it is possible to solve the problem of cross interference of the light absorbing layer and the reflective layer which are caused by spraying, coating, or the like in the prior art such as Patent Documents 1 and 2.

The prismatic structure formed by the light absorbing layer and the reflective layer is stacked in a plurality of layers in the height direction of the screen. Before bonding the light absorbing layer and the reflective layer, it is possible to determine whether to apply the adhesive on the bonding surface according to factors such as the materials used for the light absorbing layer and the reflective layer, and then alternately stack the formed prismatic structures and perform heat treatment. The laminate is integrally formed, or the adhesive is applied only to the bonding surface without being subjected to hot pressing. The plurality of prismatic structures superimposed and pressed form a screen height that satisfies the actual requirements.

Since the light absorbing layer and the reflective layer are separately formed in the present invention, if part of the damage occurs on the screen of the screen during the later use of the screen, only the light absorbing layer and the reflective layer of the damaged portion can be replaced without Replace the entire screen, saving maintenance costs.

In addition, in order to increase the adhesion of the adhesive, the surface of the prism surface in the light absorbing layer and the reflective layer may be subjected to corona treatment or plasma treatment/chemical treatment to increase the surface energy before the light absorbing layer and the reflective layer are bonded together. Processing. In order to enable better alignment and prevention of displacement of the light absorbing layer and the reflective layer, the light absorbing layer and the light reflecting layer can be placed in a mold of a suitable size.

Further, it is also possible to form the screen by increasing the upper base length a and the lower base length b of the trapezoidal structure in FIG. 5 by the same size, but keeping the angles α and β constant, and making the light absorbing layer and the reflective layer The prism faces are completely coincident. After the prismatic structure formed by the light absorbing layer and the reflective layer is superposed, the zigzag structure is pressed by a suitable pressure, temperature, or the like by a jig. After the pressing is completed, the excess thickness portion of the light absorbing layer and the reflective layer is cut away from the viewing surface side along the sawtooth structure by a cutting method such as laser cutting, so that the screen surface has a zigzag structure formed by the light absorbing layer and the reflective layer and has A desired predetermined thickness perpendicular to the viewing surface, that is, the light absorbing layer and the reflective layer after the cutting is performed has a predetermined thickness perpendicular to the viewing surface of the screen, and has a zigzag structure in a cross-sectional view of the screen. In this method, the bonding or treatment of the superposed faces of the light absorbing layer and the reflecting layer is the same as in the foregoing method.

As shown in FIG. 7, the present invention can also bond the light absorbing layer 101 and the reflective layer 102 to the carrier substrate 105 parallel to the screen viewing surface, and alternately stack the light absorbing layer 101 and the reflective layer 102 on the carrier substrate 105. (ie, a prismatic structure formed by the light absorbing layer 101 and the reflective layer 102 is laminated) and pressed together. The carrier substrate 105 may be a planar flexible or rigid sheet of the same material as the light absorbing layer 101 or the reflective layer 102 and has a thickness t in the range of 80-300 μm. When such a structure is employed, the first prism structure in which the light absorption layer 101 is located and the second prism structure in which the reflective layer 102 is located may be a triangular prism.

As shown in FIG. 8, in order to make the projected light better diffuse and reflect, to make the picture more uniform, and to eliminate glare, the reflective surface 104 of the reflective layer 102 can be set before laminating and pressing the light absorbing layer and the reflective layer. Rough surface. For example, a rough surface of a surface having an undulating structure can be formed by sanding, sand blasting, or other coating means. Of course, it is also possible to obtain an effect of controlling the angle of view by controlling the surface structure of the reflective layer 102, for example, designing the reflective surface 104 as a surface having a convex-concave microstructure.

Other contents and features of the embodiments of the present invention may be combined, substituted, or alternately used according to actual needs, unless otherwise specified in the specification.

Regarding the conditions of the specific temperature and the like of the lamination process in the above embodiment, although no specific numerical value or content is provided in the specification of the present invention, those skilled in the art can appropriately adjust the parameters according to the temperature, thermal expansion coefficient and the like of the materials used in the screen.

According to the method for forming a screen in the present invention, the light absorbing layer and the reflective layer are separately formed, and then the light absorbing layer and the reflective layer are alternately laminated and laminated by bonding, laminating, or laminating and laminating. The integral structure can prevent problems such as cross interference between the light absorbing layer and the reflective layer formed in the prior art, can achieve high contrast, and the preparation method of the invention is simple and has better light resistance.

It will be understood by those skilled in the art that <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt;

Claims

A screen comprising a plurality of light absorbing layers that absorb ambient light and a plurality of reflective layers that reflect projected light, the light absorbing layer and the reflective layer being equal in number, each of the light absorbing layers and each of the reflective layers acting as One unit forms a prismatic structure which is laminated to form a zigzag structure on the viewing surface.
The screen according to claim 1, further comprising a carrier substrate on which the prismatic structure is placed and laminated to form a zigzag structure on the viewing surface.
The screen according to claim 1 or 2, wherein the light absorbing layer is a first prism extending in a width direction of the screen, the first prism having at least two perpendicular to the viewing surface and parallel to each other a prismatic surface; the reflective layer being a second prism extending in a width direction of the screen, the second prism having at least two second prism faces perpendicular to the viewing surface and parallel to each other.
The screen according to claim 3, wherein a cross section of the first prism in a height direction of the screen has a shape of a first right-angled trapezoid, and a cross section of the second prism along a height direction of the screen has The shape of the second right angle trapezoid.
The screen according to claim 4, wherein a lower base length of the first right-angled trapezoid is equal to an upper base length of the second right-angled trapezoid, and a lower base length of the first right-angled trapezoid is greater than the first The base of the straight trapezoid is long, and the length of the upper base of the second right angle trapezoid is longer than the length of the lower base of the second right angle trapezoid.
The screen of claim 5, wherein the height of the first right angle trapezoid is not greater than the height of the second right angle trapezoid.
A screen according to claim 4 or 5, wherein the sum of the height of each of said first right-angled trapezoids and the height of each of said second right-angled trapezoids is between 30 and 300 μm, preferably between 50 μm and 200 μm. .
The screen according to claim 4 or 5, wherein said upper base side length of said first right angle trapezoid and said lower base side length of said second right angle trapezoid are between 0.1 mm and 0.5 mm, preferably Between 0.125mm and 0.3mm.
The screen according to claim 4 or 5, wherein said lower base length of said first right-angled trapezoid and said upper base side of said second right-angled trapezoid are between 80 μm and 500 μm, preferably at 100 μm -300μm.
The screen according to claim 4 or 5, wherein a difference between the length of the lower base and the length of the upper base in the first right-angled trapezoid is between 20 μm and 150 μm, preferably between 30 μm and 100 μm. The difference between the upper base length and the lower base length in the second right angle is between 20 μm and 150 μm, preferably between 30 μm and 100 μm.
A method of manufacturing a screen, comprising the steps of:

Forming a light absorbing layer having a light absorbing surface facing the ambient light, wherein the light absorbing layer is formed as a first prism structure extending in a width direction of the screen, and the first prism structure has at least two perpendicular to the a first prism face of the viewing surface of the screen and parallel to each other;

Forming a reflective layer having a reflective surface facing the projected light, wherein the reflective layer is formed as a second prism structure extending in a width direction of the screen, and the second prism structure has at least two perpendicular to the a second prism face that views the surface of the screen and is parallel to each other;

In the height direction of the screen, the light absorbing layer is located on the reflective layer such that the first prism face fits the adjacent second prism face, thereby causing one of the light absorbing layer and One of the reflective layers forms a prismatic structure as a unit, and the plurality of prismatic structures are laminated and pressed together to form a zigzag structure on the viewing surface.
The manufacturing method according to claim 11, wherein the light absorbing layer material is formed by adding a light absorbing component to the light absorbing layer base material, and the light absorbing layer material is formed by molding the light absorbing layer material, and

Here, the reflective layer is formed by adding reflective particles to the reflective layer base material, and the reflective layer is formed by molding the reflective layer material.
The manufacturing method according to claim 11, wherein a light absorbing layer base material is molded, and a light absorbing material is coated on the formed light absorbing layer base material to form the light absorbing layer.

Wherein, the reflective layer base material is molded, and a reflective material is coated on the formed reflective layer base material to form the reflective layer.
The manufacturing method according to claim 12 or 13, wherein the light absorbing layer base material and the light reflecting layer base material are polyethylene terephthalate (PET), polycarbonate (PC) or poly Methyl methacrylate (PMMA).
The manufacturing method according to any one of claims 11 to 13, wherein the bonding is performed on the first prism face and the second prism face and lamination after heat treatment, or only The light absorbing layer and the reflective layer are bonded to each other by applying an adhesive on the first prism face and the second prism face.
The manufacturing method according to claim 15, wherein the first prism face and the second prism face are subjected to a treatment capable of increasing surface energy before the step of applying the binder, wherein Treatments capable of increasing surface energy include corona treatment, plasma treatment, and chemical treatment.
The manufacturing method according to any one of claims 11 to 13, wherein after the light absorbing layer and the reflective layer are formed, a plurality of the prismatic structures are laminated and adhered along a height direction of the screen The bond is bonded to the carrier substrate and laminated, the carrier substrate being parallel to the viewing surface of the screen.
The manufacturing method according to claim 17, wherein the carrier substrate is the same flexible material or hard sheet as the material of the light absorbing layer base material or the light reflecting layer base material, and has a range of 80 μm to 300 μm The thickness inside.
The fabricating method according to claim 12, further comprising the step of forming the reflective surface in the reflective layer into a rough surface before the step of laminating the light absorbing layer and the reflective layer, wherein Sandblasting or coating, forming the reflective surface as a rough surface.
The manufacturing method according to any one of claims 11 to 13, wherein the light absorbing layer and the reflective layer are formed in a shape having a curved prism, and the screen is formed as a curved screen having a curvature.