KR100681415B1 - Glass bead screen and method of manufacturing thereof - Google Patents

Abstract

The present invention relates to a glass bead screen and a manufacturing method of the screen. The glass bead screen, the base disk; An adhesive layer applied to the front surface of the base disc and capable of reflecting the projected image; A glass bead layer comprising a plurality of glass beads for inducing light incident to the adhesive layer to the adhesive layer; It characterized in that it comprises a coating layer covering the glass bead layer.

In addition, the manufacturing method, the adhesive layer coating step of applying an adhesive force to the base disc by applying an adhesive layer of a predetermined thickness on the front surface of the base disc; A glass bead stacking step of applying glass beads on the base disc on which the adhesive layer is applied so that the glass beads cover and adhere to the adhesive layer; Forming a coating layer of a predetermined thickness on the entire surface of the glass bead layer laminated on the adhesive layer through the glass bead stacking step has a configuration comprising a coating step to cover the glass bead layer.

According to the present invention, the glass bead layer is stacked on the front of the screen, so that the image projected from the outside is not diffusely reflected, and the image is clear due to the high reflectance, and the screen surface is smooth, so that there is no distortion of the image. Furthermore, the glass bead layer may be coated with a light diffusing agent to realize a wide viewing angle by extending the reflection angle.

Description

Glass bead screen and method of manufacturing the screen

1 is a perspective view showing a conventional screen apparatus for displaying a video.

2 is a cross-sectional view showing the configuration of a glass bead screen according to an embodiment of the present invention.

3 is a cross-sectional view for explaining the operation of the glass bead and the coating layer in the glass bead screen shown in FIG.

4 is a block diagram illustrating a method of manufacturing a glass bead screen according to an embodiment of the present invention.

5 is a view illustrating an example of a coating process during the manufacturing step of the glass bead screen according to an embodiment of the present invention.

6 is a block diagram illustrating another method for manufacturing a glass bead screen according to an embodiment of the present invention.

FIG. 7 is a view for explaining the manufacturing method shown in FIG.

<Explanation of symbols for the main parts of the drawings>

10: screen device 12: screen

14: housing 20: glass bead screen

22: First sheet 24: Glass fiber sheet

26: second sheet 28: adhesive layer

30: glass bead 32: coating layer

34: base disc 36: glass bead layer

38: Coating liquid 39: Coating agent sheet

40: application roller 40a: groove

42: support roller 44: hot pressing plate

46: die 48: container

50: synthetic resin film 52: release agent

54: hotmelt adhesive 56: laminated body

The present invention relates to a glass bead screen and a manufacturing method of the glass bead screen.

For example, an image projector used for various conferences, lectures, or seminars is an optical system that allows a user to enlarge and project a prepared image on a screen, and is very useful because many people can be simultaneously viewed in proportion to the width of the screen.

By the way, most of the conventional screens are made of vinyl chloride or synthetic water support. These screens are usually rolled up and stored and spread out when needed.

FIG. 1 illustrates a conventional general video display screen device. There are many types of conventional screen devices, for example, a method of embedding in a ceiling or mounting on a stand.

As shown, the conventional screen device 10 includes a housing 14 having an accommodation space therein, which is housed in the housing 14 in a wound state and is released from the housing 14 in use and unfolded in the direction of arrow A. FIG. It consists of a screen 12 which receives the projected image.

However, since the screen 12 is made of vinyl chloride or synthetic water support, not only can the brightness be lowered, the clear image is not seen, but the screen surface is not smooth and the edge is slightly deteriorated as the use is long, so the image projected from the projector is slightly There was a problem that it was distorted. In addition, because the image projected on the fine wrinkles or sticky areas formed on the screen surface is diffusely reflected and scattered in all directions, the brightness is not very good.

The present invention has been made to solve the above problems, by laminating a glass bead layer on the front of the screen, the image projected from the outside is not diffusely reflected, the image is high because the reflectivity is high, and the screen surface by embedding a glass fiber sheet The overall smoothness, there is no distortion of the image, and furthermore, to provide a glass bead screen and a method of manufacturing the glass bead screen that can realize a wide viewing angle by coating the glass bead layer with a light diffusing agent to extend the reflection angle .

Glass bead screen of the present invention for achieving the above object, the base disk having a width that can receive and display the image projected from the outside; An adhesive layer laminated on the base disc and capable of reflecting the projected image; A glass bead layer made of a plurality of glass beads bonded to the adhesive layer to cover the entire surface of the base disc and having light having a predetermined particle size and passing light incident from the front to the adhesive layer; And a light-transmissive coating layer covering the glass bead layer, wherein the base disc is composed of two or more sheets of synthetic resin sheets and a glass fiber sheet sandwiched and fixed between the synthetic resin sheets.

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In addition, the glass bead constituting the glass bead layer is characterized in that it has a particle size of 200 mesh to 300 mesh.

In addition, the adhesive layer is characterized by comprising a urethane resin or acrylic resin, a curing agent, a fluorescent brightener.

In addition, the coating layer is characterized in that it comprises a urethane resin or acrylic resin, a curing agent, a light diffusing agent.

In addition, the manufacturing method of the glass bead screen, the base disk having a width that can receive and display the image projected from the outside, the adhesive layer is applied to the base disk and reflects the projected image, and the adhesive layer is bonded to the base A glass bead screen comprising a glass bead layer comprising a plurality of glass beads for covering the front surface of the disc and having light having a predetermined particle size passing through the light incident from the front to the adhesive layer, and a transparent coating layer covering the glass bead layer. As a production method,

An adhesive layer coating step of applying an adhesive force to the base disc by applying an adhesive layer having a predetermined thickness on the surface of the base disc; A glass bead stacking step of applying glass beads on the base disc on which the adhesive layer is applied so that the glass beads cover and adhere to the adhesive layer; The glass bead layer comprises a coating step of covering a glass bead layer by forming a coating layer having a predetermined thickness on the glass bead layer laminated on the adhesive layer through the glass bead stacking step, and the base disc includes two or more sheets of synthetic resin sheets and the synthetic resin sheet. Comprising a glass fiber sheet that is tightly fixed between the base fabric manufacturing step for producing the base disk; The adhesive coating step of placing the glass fiber sheet between the neighboring synthetic resin sheet and applying an adhesive therebetween, and the laminated bonding process of pressing and bonding the synthetic resin sheet to adhesively fix the glass fiber sheet between the synthetic resin sheet It is characterized by.

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In addition, the glass bead stacking step; And a scattering process of spraying the prepared glass bead onto the adhesive layer of the base disc to which the adhesive is applied to make the glass bead adhere to the adhesive layer.

In addition, the coating step of forming the coating layer, the roller coating step of applying a coating roller, the coating agent to be coated on the glass bead layer on the outer circumferential surface of the glass bead layer by rolling to the front surface of the glass bead layer to apply on the glass bead layer It is characterized by including.

In addition, another manufacturing method of the glass bead screen, the base disk manufacturing step of manufacturing a base disk of a width that can be displayed by reflecting the image projected from the outside; Manufacturing a laminate that receives and reflects an image projected from the outside while being laminated on one side of the base disc, preparing a synthetic resin film having a width corresponding to the base disc, and applying a release agent to one side of the film A release coating process, a coating layer lamination step of preparing a light-transmissive coating layer having an adhesive property on the applied release agent, and a glass bead lamination step of applying glass beads on the coating layer so that the glass beads cover and fix the coating layer. And a laminate comprising an adhesive layer coating step of coating an adhesive layer on the glass bead layer formed through the glass bead stacking process to cover the glass bead layer, and a hot melt adhesive coating step of applying a hot melt adhesive on the adhesive layer. Manufacturing step; An adhesion step of closely contacting the laminate to one surface of the base disc manufactured through the base disc manufacturing step, wherein the hot melt adhesive adheres to the base disc; A fusion step of melting the hot melt adhesive by pressing and heating the laminate to the base disc to fix the laminate to the base disc; After the fusion step is completed, characterized in that it comprises a peeling step of removing the synthetic resin film from the coating layer.

In addition, the base disc is composed of two or more synthetic resin sheets and a glass fiber sheet tightly fixed between the synthetic resin sheet, the base disc manufacturing step for producing the base disc; The adhesive coating step of placing the glass fiber sheet between the neighboring synthetic resin sheet and applying an adhesive therebetween, and the laminated bonding process of pressing and bonding the synthetic resin sheet to adhesively fix the glass fiber sheet between the synthetic resin sheet It is characterized by.

In addition, the glass bead stacking process; Spraying the prepared glass bead to the coating layer characterized in that it comprises a scattering process for adhering the glass bead to the coating layer.

Hereinafter, one embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a cross-sectional view showing the configuration of a glass bead screen according to an embodiment of the present invention.

Referring to the drawings, the glass bead screen 20 according to the present embodiment is applied to the base disc 34 and the front surface of the base disc 34 to provide an adhesive force to the base disc 34. (28), a glass bead layer (36) adhered to the adhesive layer (28) and evenly covering the entire surface of the base disc (34), and a coating layer (32) covering the glass bead layer (36). .

The base disc 34, the first sheet 22, the glass fiber sheet 24 is adhesively fixed to the front surface of the first sheet 22, and the glass fiber sheet 24 is adhesively fixed to the front surface of the The second sheet 26 has a laminated structure. The thickness of the base disc 34 varies depending on the size of the screen 20 but may be approximately 3 mm.

In addition, the first sheet 22 and the second sheet 26 are made of vinyl chloride (PVC) or urethane resin. However, in some cases, it may be made of a material other than the vinyl chloride or urethane resin. In addition, the first sheet 22 may have a black color and the second sheet 26 may have a white color.

The glass fiber sheet 24 may be a sheet-like member made of ordinary glass fibers, or may be constructed by weaving glass fibers, or may be manufactured in a sheet form by being pressed to a predetermined thickness without being woven.

In any case, the glass fiber sheet 24 is adhesively fixed to the first and second sheets 22 and 26 in a state interposed between the first and second sheets 22 and 26 to smooth the base disc 34 as a whole. Support. Accordingly, the edge portion of the screen 20 is not curled or crushed so that there is no distortion of the image. In addition, the glass fiber sheet 24 also serves as a heat insulator and prevents heat from being transferred from the first sheet 22 to the second sheet 26 and from the second sheet 26 to the first sheet 22. Prevent thermal deformation of (20).

The adhesive layer 28 applied to the entire surface of the second sheet 26 is a base disc 34 having adhesiveness as a mixture of a curing agent and a fluorescent brightener mixed with a urethane resin or an acrylic resin. Adhesively fix the glass bead 30 to the. The optical brightener brightly reflects the image incident on the glass bead 30 to make the image very clear. In addition, the composition ratio of the urethane resin or acrylic resin and the curing agent is produced in accordance with the known general adhesive composition ratio. The urethane and acrylic resins are optionally used, and other resins corresponding thereto may be used in some cases. Moreover, content of the said fluorescent brightener can be added or subtracted as needed.

The adhesive layer 28 is formed through a known method through a known comma coater, J-coater, or knife coater.

On the other hand, the glass bead layer 36 is laid on the front surface of the adhesive layer 28. The glass bead 30 constituting the glass bead layer 36 is a precision glass bead of various sizes and has a high refractive index almost the same as that of diamond. Effect.

In the present embodiment, the glass bead 30 has a reflection angle of about 1.9 degrees and a particle size of 200 mesh to 300 mesh is used.

In particular, since the glass bead 30 is attached to the adhesive layer 28 through a scattering process to be described later, the glass bead 30 is not stacked on the adhesive layer 28 but forms a single layer, and is arranged as densely as possible in the lateral direction, so that the overall density is uniform. Has

The transparent coating layer 32 is formed on the front surface of the glass bead layer 36. Since the coating layer 32 has an adhesive ability and is coated with a predetermined thickness on the entire surface of the glass bead layer 36, the coating layer 32 is convex and convex to reflect the outline of the glass bead layer 36. The coating method of the coating layer 32 is in accordance with the roller coating method or thermal transfer method described later.

The coating layer 32 is a mixture of a urethane resin or an acrylic resin, a curing agent, and a light diffusing agent to cover the glass bead layer 36 to protect the glass bead layer 36 from scratches or impacts from outside. 30) does not fall off from the adhesive layer 28. The composition ratio of the urethane resin or acrylic resin and the curing agent and the light diffusing agent may vary depending on the embodiment, and in particular, the mixing amount of the light diffusing agent may be added or decreased depending on the degree of light diffusion required.

The light diffusing agent diffuses the reflection angle of the image reflected from the outside to the maximum to allow the screen 20 to have a wider viewing angle, and adjusts the brightness, sharpness and viewing angle of the screen by adding or subtracting the amount of the composition. Can be.

In addition, the overall thickness of the glass bead screen 20 may vary depending on the case, for example, the base disc 34 is about 2.7mm to 3.3mm, the adhesive layer 28, the glass bead layer 36 and the coating layer 32 The sum of the thickness can be formed to about 0.7mm to 0.8mm.

3 is a cross-sectional view for explaining the operation of the glass bead and the coating layer in the glass bead screen shown in FIG.

Referring to the drawings, the image projected from the outside in the direction of arrow a is diffused by an angle of θ1 while passing through the transparent coating layer 32 and then reflected through the glass beads 30 to the surface of the adhesive layer 28 and in the direction of arrow b It can be seen that the display is diffused at an angle of θ2. This phenomenon is realized by the action of the light diffusing agent included in the coating layer (32).

4 is a block diagram illustrating a method of manufacturing a glass bead screen according to an embodiment of the present invention.

Referring to the drawings, the manufacturing method of the glass vis screen according to the present embodiment, the base disk manufacturing step 100, the adhesive layer coating step 102, the glass bead stacking step 104 and the coating step 106 .

The base disc manufacturing step 100 is a step of producing the base disc 34. This is an adhesive coating process (100a) for separately manufacturing the first and second sheets 22, 26 and glass fiber sheet 24 and applying the adhesive to the opposite surfaces of the first and second sheets 22, 26, and After the adhesive is applied through the process (100a) laminated adhesive to press the first and second sheets (22, 26) in a state where the glass fiber sheet 24 is located between the first and second sheets (22, 26) Step 100b is included.

If the base disc 34 is produced through the above process, the adhesive layer coating step 102 is followed. The adhesive layer applying step 102 is a step of coating the adhesive layer (28 in FIG. 2) on the entire surface of the second sheet 26. As described above, the adhesive layer is a mixture of a urethane resin or an acrylic resin, a curing agent, and an optical brightener to fix the glass bead layer 36 to the entire surface of the base disc 34.

The adhesive layer 28 coated in the adhesive layer coating step 102 is a known method using a known comma coater, J coater or knife coater. In some cases, gravure coating may be applied.

The glass bead stacking step 104 of laminating the glass beads 30 to the adhesive layer 28 formed through the adhesive layer applying step 102 is performed through a scattering process 104a. In the scattering process 104a, the glass beads 30 are evenly sprayed on the adhesive layer 28 on the base disk 34 to which the adhesive layer 28 is applied so that the glass beads 30 adhere to the upper portion of the adhesive layer 28. It is a process. The scattering itself is a known manner. In some cases, when sprinkling glass beads, the base disk 34 may be tilted or a slight vibration may be applied to the base disk 34 so that the surplus glass beads flow down.

After the glass bead layer 36 is formed through the glass bead stacking step 104, the coating step 106 is continued. The coating step 106 is a step of forming a coating layer 32 on the entire surface of the glass bead layer 36 is implemented through a roller coating process (106a). The roller coating process 106a will be described in detail with reference to FIG. 5.

Through the coating step 106 to complete the manufacturing process of the glass bead screen 20 of the present embodiment.

5 is a view illustrating a roller coating process 106a during the manufacturing step of the glass bead screen according to the embodiment of the present invention.

As shown, the liquid coating liquid 38 to cure and form the coating layer 32 is contained in the container 48. In addition, the coating roller 40 is partially locked to the container 48, and the support roller 42 is provided on the vertical upper portion of the coating roller 40.

In addition, between the support roller 42 and the application roller 40, the screen before the coating layer 32 is formed is entered so that the linear movement in the direction of the arrow Y or the opposite direction. At this time, the screen moves in a state where the glass bead layer 36 is supported downward.

 The coating roller 40 is a roller rotatable in the direction of the arrow z or vice versa, a plurality of grooves (40a) is formed on the outer peripheral surface. The interval between the grooves 40a corresponds to the interval between the glass beads 30 and has a volume sufficient to accommodate the glass beads 30 therein. Basically, the groove 40a serves to pour the coating liquid 38 upwards as the application roller 40 rotates, so as to be buried in the linearly moving glass bead 30.

The coating liquid 38 contained in the container 48 is applied to the glass bead 30 by coating the screen between the rollers 40 and 42 configured as described above in the direction of the arrow Y or the opposite direction. When 38 is cured, the coating layer 32 is formed. When the coating amount of the coating liquid 38 is small in one coating process, the screen is reciprocated several times to apply a desired amount of coating liquid, followed by drying to complete the manufacturing process of the screen 20.

FIG. 6 is a block diagram illustrating another manufacturing method of a glass bead screen according to an embodiment of the present invention, and FIG. 7 is a view illustrating the manufacturing method described with reference to FIG. 6.

The manufacturing method described with reference to FIG. 4 has a configuration in which the adhesive layer 28, the glass bead layer 36, and the coating layer 32 are sequentially stacked on the pre-fabricated base disc 34, but will be described below. The method has a process of separately fabricating the base disc 34 and the laminate 56, then laminating and fusing them.

Referring to FIG. 6, the method for manufacturing a glass bead screen includes a base disc manufacturing step 100, a laminate production step 201, and an adhesion step 301 for laminating a laminate on the base disc, It can be seen that the laminated body 56 is composed of a fusion step 303 and a peeling step 305 for mutually fusion by heating and pressing the side of the base disc 34.

The base disc manufacturing step 100 is as described with reference to FIG. 4, and the base disc 34 produced through the base disc manufacturing step 100 is illustrated in FIG. 7A.

The laminate manufacturing step 201 is a process of manufacturing the laminate 56. The laminate 56 has a laminate structure shown in FIG. 7B and is thermally fused to the base disc 34 as described later. The laminate 56 includes the adhesive layer 28, the glass bead layer 36, and the coating layer 32.

The laminate production step 201 is a release coating step 203 for coating a release agent 52 on one side of the synthetic resin film 50, as shown in Figure 7b, and the release agent ( 52 is a coating layer lamination process 205 for applying an adhesive coating layer 32 on the upper surface of the coating layer 32, and the glass bead 30 covers the coating layer 32 by spraying the glass bead 30 on the upper surface of the coating layer 32. Glass bead stacking process 207 to form a glass bead layer 36, an adhesive layer coating process 209 for applying an adhesive layer 28 on the upper surface of the glass bead layer 36, and a hot melt on the adhesive layer 28 and a hot melt adhesive coating step 211 for applying the hot melt 54.

The composition or configuration of the coating layer 32, the glass bead layer 35, and the adhesive layer 28 itself is the same as described with reference to FIG. 4.

The synthetic resin film 50 is a flat plate having a thickness of about 1 mm and is equal to the width of the base disc 34. As the synthetic resin film 50, for example, a polyethylene series resin may be used.

The release agent 52 is interposed between the coating layer 32 and the synthetic resin film 50 as a known material so that the synthetic resin film 50 easily falls off from the coating layer 32 when the peeling step 305 will be described later. do.

The lamination method of the coating layer 32 laminated on the release agent 52 is performed through the comma coater, J coater, J-coater or knife coater, and optionally, a gravure coating method. It can also be used.

The glass bead stacking process 207 is to scatter the glass bead 30 in the coating layer 32 through a scattering process (207a) so that the glass bead 30 is bonded to the coating layer 32 to form a single layer It is a process. The glass bead stacking process 207 is the same as the glass bead stacking step 104 described with reference to FIG. 4.

If the glass bead layer 36 is formed through the glass bead stacking process 207, the adhesive layer spreading process 209 is performed. The adhesive layer coating process 209 is a process of coating the adhesive layer 28 covering the glass bead layer 36. The adhesive layer 28 may be coated by the roller coating method 106a described above.

When the adhesive layer 28 is applied, the hot melt adhesive 54 is applied to the upper portion of the adhesive layer through a hot melt adhesive coating process 211. The hot melt adhesive is known and melts upon application of heat to have adhesiveness.

If the manufacturing of the laminate 56 is completed through the hot melt adhesive coating process 211, as shown in FIG. 7C, the base disc 34 is placed on the die 46, and the base 56 is turned upside down. The adhesion step 301 for laminating on the disc 34 is followed.

The laminated structure of the base disc 34 in the inverted state is from the bottom to the hot melt adhesive 54, the adhesive layer 28, the glass bead layer 36, the coating layer 32, the release agent 52, the synthetic resin film 50 Is done. In particular, the hot melt adhesive 54 interviews the base disc 34.

In this state, the fusion step 303 for heating and pressing the laminate 56 is continued by moving the heat press plate 44 downward. The hot pressing plate 44 is a known pressing plate that generates heat by high frequency, and when the laminate 56 is pressed, the hot melt adhesive 54 melts to have an adhesive force, and the laminate 56 is adhered to the base disc 34. To combine.

At this time, the coating layer 32 is also softened by heat to have a convex surface reflecting the shape of the glass bead 30 as shown in FIG. 7D.

When the laminate 56 is fixed to the base disc 34 by performing the fusion step 303, the synthetic resin film 50 is separated from the coating layer 32 through the peeling step 305. As described above, since the release film 52 for separating the synthetic resin film 50 and the coating layer 32 is coated on the synthetic resin film 50, the synthetic film 50 may be easily peeled off in the direction of the arrow z.

Through the peeling step 305 is finished the manufacturing process of the glass bead screen.

As mentioned above, although this invention was demonstrated in detail through the specific Example, this invention is not limited to the said Example, A various deformation | transformation is possible for a person with ordinary knowledge within the scope of the technical idea of this invention.

According to the present invention, the glass bead layer is stacked on the front of the screen, so that the image projected from the outside is not diffusely reflected, and the image is clear due to high reflectance, and the screen surface is smooth, so that there is no distortion of the image. Furthermore, the glass bead layer may be coated with a light diffusing agent to realize a wide viewing angle by extending the reflection angle.

Claims (12)

A base disc having an area capable of receiving and displaying an image projected from the outside; An adhesive layer laminated on the base disc and capable of reflecting the projected image; A glass bead layer made of a plurality of glass beads bonded to the adhesive layer to cover the entire surface of the base disc and having light having a predetermined particle size and passing light incident from the front to the adhesive layer; It includes a light-transmissive coating layer for covering the glass bead layer, The base disc is a glass bead screen, characterized in that composed of two or more sheets of synthetic resin sheets, and a glass fiber sheet that is sandwiched and fixed between the synthetic resin sheets. delete The method of claim 1, The glass bead screen constituting the glass bead layer has a particle size of 200 mesh to 300 mesh. The method of claim 1, The adhesive layer is a glass bead screen comprising urethane resin or acrylic resin, curing agent, optical brightener. The method of claim 1, The coating layer is a glass bead screen, characterized in that comprises a urethane resin or acrylic resin, a curing agent, a light diffusing agent. A base disc having an area capable of receiving and displaying an image projected from the outside, an adhesive layer applied to the base disc and capable of reflecting the projected image, and bonded to the adhesive layer to cover a front surface of the base disc. As a method of manufacturing a glass bead screen consisting of a glass bead layer consisting of a plurality of glass beads to pass the light incident from the front to the adhesive layer and a light-transmissive coating layer covering the glass bead layer, An adhesive layer coating step of applying an adhesive force to the base disc by applying an adhesive layer having a predetermined thickness on the surface of the base disc; A glass bead stacking step of applying glass beads on the base disc on which the adhesive layer is applied so that the glass beads cover and adhere to the adhesive layer; And a coating step of covering a glass bead layer by forming a coating layer having a predetermined thickness on the glass bead layer laminated on the adhesive layer through the glass bead stacking step. The base disc is composed of two or more sheets of synthetic resin sheets and a glass fiber sheet tightly fixed between the synthetic resin sheets, A base disc manufacturing step for manufacturing the base disc; An adhesive coating step of placing a glass fiber sheet between adjacent synthetic resin sheets and applying an adhesive therebetween; The glass bead screen manufacturing method characterized in that it comprises a laminated adhesive bonding step of pressing and fixing the glass sheet between the synthetic resin sheet by pressing the synthetic resin sheet. delete The method of claim 6, The glass bead stacking step; And a scattering process of spraying the prepared glass bead onto the adhesive layer of the base disc to which the adhesive is applied to make the glass bead adhere to the adhesive layer. The method of claim 6, The coating step of forming the coating layer, Glass bead screen manufacturing method comprising a roller coating process for coating on the glass bead layer by rolling the coating roller, the coating agent to be coated on the glass bead layer on the outer peripheral surface of the glass bead layer to the front of the glass bead layer . A base disc manufacturing step of manufacturing a base disc having an area capable of reflecting and projecting an image projected from the outside; Manufacturing a laminate that receives and reflects an image projected from the outside while being laminated on one side of the base disc, preparing a synthetic resin film having a width corresponding to the base disc, and applying a release agent to one side of the film A release coating process, a coating layer lamination step of preparing a light-transmissive coating layer having an adhesive property on the applied release agent, and a glass bead lamination step of applying glass beads on the coating layer so that the glass beads cover and fix the coating layer. And a laminate comprising an adhesive layer coating step of coating an adhesive layer on the glass bead layer formed through the glass bead stacking process to cover the glass bead layer, and a hot melt adhesive coating step of applying a hot melt adhesive on the adhesive layer. Manufacturing step; An adhesion step of closely contacting the laminate to one surface of the base disc manufactured through the base disc manufacturing step, wherein the hot melt adhesive adheres to the base disc; A fusion step of melting the hot melt adhesive by pressing and heating the laminate to the base disc to fix the laminate to the base disc; Glass bead screen manufacturing method comprising the step of peeling off the synthetic film from the coating layer after the completion of the fusion step. The method of claim 10, The base disc is composed of two or more synthetic resin sheets and a glass fiber sheet that is tightly fixed between the synthetic resin sheets, A base disc manufacturing step for manufacturing the base disc; An adhesive coating step of placing a glass fiber sheet between adjacent synthetic resin sheets and applying an adhesive therebetween; The glass bead screen manufacturing method characterized in that it comprises a laminated adhesive bonding step of pressing and fixing the glass sheet between the synthetic resin sheet by pressing the synthetic resin sheet. The method of claim 10, The glass bead stacking process; And a scattering process of spraying the prepared glass beads onto the coating layer to cause the glass beads to adhere to the coating layer.

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