KR102171296B1 - Method for manufacturing hologram mirror - Google Patents

Abstract

The present invention relates to a method for manufacturing a hologram mirror formed by stacking a base layer made of translucent plastic or glass as an image-outputting outermost layer, a film assembly bonded to the bottom surface of the base layer with a metal-deposited film and a PET film sequentially stacked, and release paper bonded to the bottom surface of the film assembly. The base layer, the film assembly, and the release paper are bonded with an adhesive applied therebetween. The adhesive is manufactured through: a first solution manufacturing step of manufacturing a first solution by mixing 15 to 25 wt% of 1,6-hexanediol, 10 to 20 wt% of 1,4-butanediol, and 60 to 75 wt% of solvent as a mixture of one or more of acetone, ethyl acetate, and methyl ethyl ketone with respect to the total first solution weight; a second solution manufacturing step of manufacturing a second solution by mixing 85 to 90 wt% of the first solution, 5 to 10 wt% of toluene diisocyanate, and 0.1 to 5 wt% of dibutyl tin dilaurate with respect to the total second solution weight; and a step of mixing 65 to 80 wt% of the second solution and 20 to 35 wt% of adhesion aid for 20 to 60 hours at 20 to 30 degrees Celsius with respect to the total adhesive weight.

Description

Method of manufacturing a holographic mirror {METHOD FOR MANUFACTURING HOLOGRAM MIRROR}

The present invention provides a method of manufacturing a holographic mirror, and more particularly, to provide a method of manufacturing a holographic mirror having stain resistance while an image is clearly transmitted.

The hologram is a three-dimensional image and uses a technique to form an interference pattern on a photosensitive medium. Since the hologram records 1260 interference fringes per 1mm, it has a higher resolution than general photographs. These holograms are used for information storage and recording devices such as semiconductors and CD-ROMs, and are recently used as an important technology for image transmission to 3D TVs.

Holograms include a three-dimensional representation of a static image and a dynamic image, a method of expressing a photograph of a moment that cannot be seen by the eye, and a method of reproducing a virtual space that does not exist in reality by connecting it with a computer.

A holographic image reproducing apparatus projects an image with a reflector or a holographic mirror to reproduce it in a three-dimensional space, and above all, it is important to be manufactured to provide a natural image with a three-dimensional effect based on real-life images to the observer.

However, the known holographic image reproducing apparatus has a problem that the quality or three-dimensional effect of the holographic image is poor, so that the observer cannot recognize the holographic image as an actual three-dimensional image.

Korean Patent No. 10-1844843 is a device for processing a floating hologram image by receiving a current input image captured by a target to be photographed from a plurality of directions, respectively, by obtaining a difference image between the current input image and a previously captured background image, A background removal unit that determines a pixel whose pixel value is within a specified threshold value as a background pixel, and generates a target image by removing the background pixel from the current input image; A holographic image generator configured to generate a holographic image by arranging a plurality of target images to be viewed by a viewer as a floating hologram through a projector; And an input unit that receives a sensitivity adjustment input to increase or decrease the sensitivity, and if there is a sensitivity adjustment input through the input unit, the background removal unit converts the current input image and the background image into HSV (Hue, Saturation, Value) color. After converting to a model, dividing the pixel values of the converted current input image and background image by N1 (however, N1 is a positive rational number), the difference image is obtained, and the background removal unit is in the opposite direction to the one direction in which the sensitivity adjustment input is located. For the other side direction, the current input image and the HSV color model are converted, and the pixel values of the current input image and the background image converted to the HSV color model are divided by N3 (however, N3 is a positive rational number), and then the difference image It has been posted that there is a characteristic that the background can be effectively removed according to the change of lighting by characterized by obtaining.

However, when there is a moving object in the image, if the moving object moves to the edge of the image, there is a problem that the viewer is shown in an awkwardly cut state, and no other means or method to solve this problem is presented.

Therefore, in an image including a moving object, a novel and advanced holographic image reproduction system capable of enhancing the three-dimensional effect can be developed by compensating for the problem that the realism and the three-dimensional effect are clearly deteriorated due to the cut-off of the screen or the sudden disappearance of the moving object in the area around the image. The necessity is emerging.

The main object of the present invention is to provide a holographic mirror having stain resistance while an image is clearly transmitted and a method of manufacturing the same.

In order to achieve the above object, the present invention is a base layer made of any one of translucent plastic and glass as the outermost layer on which an image is output, adhered to the bottom of the base layer, and a metal-deposited film and a PET film are sequentially stacked. A method of manufacturing a holographic mirror in which an adhesive is applied between the base layer, the film assembly, and the release paper, and is made of a film assembly and a release paper bonded to the bottom of the film assembly, wherein the adhesive comprises: Based on the weight of the first solution, 1,6-hexanediol 15 to 25% by weight, 1,4-butanediol 10 to 20% by weight, acetone, ethyl acetate, methyl ethyl ketone or a mixture of one or more solvents 60 to 75% by weight A first solution preparation step of preparing a first solution by mixing them; Based on the total weight of the second solution, 85 to 90% by weight of the first solution, 5 to 10% by weight of toluene diisocyanate, and 0.1 to 5% by weight of dibutyl tin dilaurate are mixed and the second Preparing a solution, preparing a second solution; It characterized in that it is produced through a step of mixing 65 to 80% by weight of the second solution and 20 to 35% by weight of the adhesive auxiliary agent for 20 to 60 hours at 20 to 30°C, based on the total weight of the adhesive.

According to the method of manufacturing a hologram mirror according to the present invention, it is possible to provide an effect of providing a holographic mirror having stain resistance while an image is clearly transmitted.

1 is a cross-sectional view showing a schematic overall structure of a holographic image reproducing system of the present invention.
Fig. 2 is a side view showing a position of a holographic image projected onto a space on a screen and a three-dimensional decoration according to the present invention.
3 is a cross-sectional view showing an embodiment of a filter mounted on a lighting device.
4 is a conceptual diagram illustrating the operation of an additional embodiment of an image editing unit.
5 is a cross-sectional view showing a laminated structure of a holographic mirror.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The accompanying drawings are not drawn to scale, and the same reference numerals in each drawing refer to the same elements.

1 is a perspective view showing a schematic overall structure of a holographic image reproducing system of the present invention.

As can be seen from FIG. 1, the holographic image reproduction system of the present invention includes an image management device 10, a hologram mirror 20, an intermediate partition wall 30, a lighting device 40, a screen 50, and a reflector 60. Includes.

The image management device 10 is a device that stores, outputs, and edits images through the monitor 15 in a state including the monitor 15, which may be similar to a known image playback device. For example, a PC or a laptop computer , A professional video playback device, etc. may be used, and may be made in a portable size for convenience of movement and storage, and is not limited to a specific type.

In addition, the image is projected on the hologram mirror 20 to be described later, as a base content for generating a holographic image, and it is possible to exhibit an advantage of delivering a sense of vitality and a three-dimensional effect rather than processing an image such as a photo as a hologram. In particular, the image of the present invention includes a'moving object'. In other words, it is not only a still object (mountain, field) like a landscape image, but, for example, a fish swimming in an aquarium or a bird flying in the sky. In the present invention, an object including a moving object and moving in this manner is defined as a moving object. This moving object, which will be described later, is used as an object to give a sense of realism and realism by gradation processing.

The monitor 15 outputs an image stored in the image management device, and may be formed of various types of displays such as LED, LCD, and OLED.

The image management apparatus 10 of the present invention is characterized by including a video editing unit 11 in a known video player.

The image editing unit 11 is capable of editing the editing function when the image stored in the image management device is played back. The image editing unit 11 filters the image or otherwise applies a blur effect or a dimming effect. It provides a function of giving a special effect to a frame, and this function is the same as that of a known video editing unit. In other words, a general image may be formed in units of pixels. This means that the image can be processed to exhibit various special effects by filtering while adjusting the brightness, saturation, and brightness of the image by filtering the pixel values.

In particular, the image editing unit 11 of the present invention has a core function of applying a gradation effect to a peripheral region of an image among images (to be precise, an image frame). At this time, the circumferential region of the image refers to a portion corresponding to the circumferential region of the holographic image (or the screen serving as the background of the image) to be described later, and the gradation effect is from the inside to the outside, that is, at the center of the image. It means that the brightness or saturation gradually decreases toward the outside.

In other words, the gradation effect is to adjust the brightness to gradually increase or decrease.If the image is gradated in this way, the brightness or saturation decreases as it goes outward from the peripheral area of the image, resulting in a color close to white or becoming transparent. This can provide some sort of faint-looking fade-out effect.

If an image of a moving object, a fish swimming in the sea, is described as an example, the moving object may not be completely displayed, such as half the fish in the circumferential area of the image, but a cropped image may be output. If the hologram image is transparent, not in a complete shape, but in a cut state, there is a problem that the sense of reality and vitality are reduced. In order to prevent such a problem, in the present invention, a gradation effect in which the saturation and brightness of the image is adjusted to be lowered as the image goes to the outer area of the image is provided to induce a visual illusion effect so that the image appears to disappear instead of being cut off. I made it possible. At this time, when the image is displayed as a rectangular frame, the circumferential region of the image generally includes four circumferential regions of the upper, lower, left, and right. Not only can it be processed, but it is also possible to gradate only part of the lower circumference, not all of them.

In addition, it is possible to induce a visual optical illusion effect as if the moving object has disappeared so as to be more complete and realistic secondarily, which will be described later.

The hologram mirror 20 is formed to be inclined in the front area of the monitor 15 and serves to reflect (project) an image output from the monitor 15 into the space on the screen. In other words, the hologram mirror 20 is obliquely disposed in front of the monitor 15 in order to reflect and refract the image output from the monitor 15 (reflected at a right angle of 90 degrees from the image output direction in FIG. 1). Is the same as a reflective mirror in a known holographic image reproducing apparatus.

In this way, an image reflected from the hologram mirror 20 and projected onto the space in front of the screen 50 is referred to as a holographic image.

The intermediate partition wall 30 is located on the side in the direction reflected by the hologram mirror 20, and although not shown in the drawing, the image management device 10 to the hologram mirror 20 through this front wall including the front wall It can provide a hidden role to prevent exposure to the outside.

In addition, the intermediate partition wall 30 has an opening 31 for passing the image projected from the hologram mirror 20, so that the image projected from the hologram mirror 20 passes through the opening 31 to the screen 50 It is projected in the front space.

The intermediate partition wall 30 serves as a physical medium through which the screen 50, the lighting device 40, and the reflector 60, which will be described later, can be installed.

The screen 50 is a background panel located at the rear of the space where the hologram image is projected, and may have a white color like a general screen so as not to disturb the original color of the hologram image, and the hologram image is directly projected like a known screen. It is not, but a holographic image is projected on the space on the screen (in front of the screen), but it provides the role of a colorless background that can naturally project such a holographic image.

The lighting device 40 is mounted on one side of the intermediate partition wall 30 in a state with lighting, and serves to irradiate illumination light to a space in front of the screen 50, that is, a space on which a holographic image is projected. Not only can the illuminance of the holographic image be adjusted by this lighting device 40, but also direct lighting that directly irradiates the space on the screen, as well as indirectly illuminating the space in front of the screen 50 by irradiating a reflector 60 to be described later. It can provide a function as indirect lighting.

The reflector 60 is installed on one side in the direction in which the illumination light of the illumination device 40 is irradiated, so that the illumination light can indirectly irradiate the space in front of the screen 50, that is, to perform a role as indirect illumination.

2 is a side view showing a position of a holographic image projected onto a space on a screen and a three-dimensional ornament according to the present invention.

In addition to the above configuration, in the space in front of the screen 50, a three-dimensional ornament 100 is arranged in the circumferential area, and further, the three-dimensional ornament 100 is arranged in a plurality so as to have a perspective along the front and rear (front and rear) directions of the space on the screen. Can be.

The three-dimensional decoration 100 is not necessarily disposed only in the circumferential area of the screen space (the edge of the image projection area), but may be more naturally disposed in the middle area or other areas.

The basic functions and operations of the video reproducing system of the present invention according to FIGS. 1 and 2 will be described as follows.

The image output from the image management device 10 through the monitor 15 is reflected by the hologram mirror 20 and passes through the opening 31 of the intermediate partition wall 30 to be projected as a holographic image in the space in front of the screen 50 Since it is similar to a known holographic image reproducing apparatus, a detailed description thereof will be omitted.

The key to the holographic image projected on the space in front of the screen 50 is that the observer gives a real sense of reality.If the moving object moves within the image as if a fish swims in an aquarium rather than a still image, the moving object is the screen If it suddenly disappears from the edge of the image space, that is, the circumferential region, or is exposed in a cut-off state, the sense of reality that can be felt in the three-dimensional image to the observer may disappear in an instant.

In order to prevent such a problem, in the present invention, the size of the holographic image projected from the space in front of the screen 50 is determined in advance, and the size and position (coordinates, etc.) of the area in which the corresponding holographic image is located in the space in front of the screen is also determined in advance. , In the image editing unit 11, the gradation process is performed on the circumferential area of the image corresponding to the circumferential area of the space in front of the screen where the holographic image is projected, and more specifically, the gradation process is performed to lower the brightness or saturation from the inside to the outside. Project it into space.

In this case, for example, even if a moving object such as a fish is moved to the edge of the area where the hologram image is displayed, it does not disappear suddenly or is not cut off, but it naturally fades out and disappears. It gives a characteristic that can give the same liveliness.

Furthermore, by arranging the three-dimensional ornament 100 in the circumferential area of the space in front of the screen, the vividness of the holographic image as well as the three-dimensional effect may be doubled.

For example, when a swimming fish is said to swim outward in the circumferential area of the space in front of the screen, and the three-dimensional ornament 100 is a bush, it fades out by gradation processing and the fish naturally enter the bush and disappear from the view. It can have the same effect.

In addition, such three-dimensional ornaments are not only arranged two-dimensionally on a single horizontal plane, but three-dimensionally arranged in perspective in the front and rear direction of the space in front of the screen, thereby providing a characteristic that can further improve the sense of realism and three-dimensional effect. .

Due to these characteristics, the present invention can provide a holographic image with a three-dimensional effect as if an actual aquarium is located in front of the viewer's eyes in the above example and a fish swims in front of the viewer, as well as educational showcases, exhibitions, exhibitions, product advertisements. It can be used for various purposes and functions, such as providing purpose data and introducing local specialties.

3 is a cross-sectional view showing an embodiment of a filter mounted on a lighting device.

The lighting device 40 of the present invention is composed of an LED module in which a plurality of LEDs are mounted along the length direction, for example, the width or width direction of the intermediate bulkhead 30, and can utilize LED lighting characteristics that boast straightness and excellent illuminance. have.

When such an LED module directly illuminates the hologram image, the visibility of the hologram image may be lowered by the interference of light. Therefore, the amount of light of the LED module is adjusted according to the level of illumination of the hologram image or the surrounding situation. In addition to adjusting the irradiation width, a filter that performs a role of removing light reflection, such as a known camera lens filter, may be mounted on the front side of the LED module.

As can be seen from Figure 3, such a filter 70 is formed through a plurality of through holes 71 in a region corresponding to the LED module in a state extending along the length direction of the LED module, or a single through hole ( It can be mounted in such a way that it can be mounted around the LED module by taking the structure pierced by 71). At this time, the diameter of the through hole 71 may be smaller than the diameter of the LED module, or the through hole 71 may be shifted from the area where the LED module is located to reduce the amount of light emitted from the LED module.

4 is a conceptual diagram illustrating an operation of an additional embodiment of an image editing unit.

Since the gradation processing function of the image editing unit 11 is variably processed according to the external situation, particularly the illuminance irradiated to the holographic image, it is desirable to make the visual illusion caused by the gradation change reasonably according to the illuminance.

For this purpose, first of all, the system of the present invention may further include an illuminance sensor 80 for measuring illuminance of the lighting device 40, and such an illuminance sensor 80 is mounted on one side of the intermediate partition wall 30, for example. It may be mounted in a front position of the lighting device 40 or mounted in a variety of positions that can measure the illuminance of the lighting device by mounting on one side of the reflector 60.

Correspondingly, the image editing unit 11 may include a saturation adjustment part 11a that adjusts the saturation of a specific gradation-processed color according to the level of luminance measured by the luminance sensor 80.

When explaining the action of the saturation control part 11a as an example, when implementing a holographic image of a fish swimming in an aquarium, a specific color that is subjected to gradation is set to blue, which is the color of the water, and the saturation of this blue is the luminance of the lighting device. The saturation value of the gradation-processed circumferential area is adjusted upward in each step according to the gradation process in response to the case where the illuminance of the lighting device is high and the illuminance of the lighting device is low. By adjusting the saturation down, the gradation-processed image part can be controlled so that it can be seen as natural as possible without being seen as heterogeneous by external lighting.

Furthermore, the system of the present invention may include an additional illuminance measurement sensor in the intermediate partition wall 30 or the reflector 60 in addition to the illuminance sensor 80 described above. Specifically, the illuminance of the reflective illumination of the reflector 60 It may include a reflector illuminance sensor 81 to measure and an external light illuminance sensor 82 that is mounted on one side of the intermediate partition wall 30 to measure illuminance of external light.

At this time, the external light means light by an indoor light such as a fluorescent lamp if the holographic image is implemented indoors, and the external light illuminance sensor 81 detects at which position according to the irradiation angle of the external light or the size of the screen. Since variations in illuminance may occur depending on whether or not, it is desirable to set a plurality of locations based on the space on the screen, install a plurality of locations accordingly, and obtain an average value of them to accurately measure external light as much as possible.

That is, according to this configuration, the illuminance by the lighting device 40, the illuminance by the illumination reflected from the reflector 60, and the illuminance by external light are all measured. Through this, a more reasonable and accurate illuminance is measured. It provides a characteristic that the saturation can be variably adjusted in the saturation control part 11a.

Particularly, the saturation control part includes a function of differentially adjusting the saturation of the color based on the height of the total value by calculating a total number based on Equation 1 below.

Equation 1,

,

,

는 가중치,

는 H,I,J의 표준편차)(Where S is the overall value, H is the illuminance of the lighting device, I is the illuminance of the reflector, J is the illuminance of the external light,

,

,

Is the weight,

Is the standard deviation of H,I,J)

The overall numerical value calculated through Equation 1 reflects the weight of the illuminance of the lighting device 40, the illuminance of the reflector 60, and the illuminance of the external light to determine the importance of each factor, and the importance of each factor reflecting the importance The overall numerical value was calculated by using the standard deviation and the average value, and the color saturation was determined based on the height of the overall numerical value.

In this case, instead of simply calculating the average or standard deviation with only the score, the weight is reflected together, and the value reflected by the weight can be calculated so that it can be applied even in various external environments or situations where external light measurement has deviations depending on the location. I did.

In addition, in this case, each of the three weights may be designated by the system operator of the present invention, or an average value may be obtained for each weight designated by a plurality of manufacturers (experts) and the value may be set as a weight. Therefore, there is no particular limitation on the method of setting the illuminance weight of the lighting device, the illuminance weight of the reflector, and the illuminance weight of external light.

5 is a cross-sectional view showing a stacked structure of a holographic mirror.

The holographic mirror described above is a base layer 21 made of any one of translucent plastic and glass as the outermost layer (ie, the closest surface when viewed by the user), and a metal-deposited film adhered to the bottom surface of the base layer 21 The film assembly 22 in which (22a) and the PET film 22b are sequentially stacked, and the release paper 23 adhered to the bottom surface of the film assembly 22 may be formed in a laminated structure, and the base layer 21, An adhesive 24 may be applied between the film assembly 22 and the release paper 230 to adhere them.

First, the base layer 21 is made of plastic or glass that has the property that the opposite side is blurred when viewed through an object, and has a lower VL transmittance (visible light transmittance) and a lower VL reflectance than the intermediate layer film assembly 22 ( Visible light reflectance). At this time, in the film assembly 22, a double image phenomenon (a phenomenon in which one object appears in two, and the image is not clearly visible, which may increase eye fatigue) may occur. However, this double image phenomenon is caused by stacking with the translucent base layer 21. It can be controlled, and the hologram mirror 20 made of such a structure may have a VL transmittance of 35% or less and a VL reflectance of about 30%.

Next, in the film assembly 22, it was said that a metal-deposited film 22a and a PET film 22b are sequentially stacked. In the metal-deposited film 22a, gaseous metal particles are deposited on a glass plate. As a thin metallic solid film is formed, it has higher clarity (the degree of visibility from a distance) and clarity under bright lighting compared to the PET film (22b), enabling it to respond to various exhibition environments and to watch holographic images. It can improve the viewer's viewing satisfaction.

In addition, the PET film 22b is a polyester film, which is widely used for industrial, optical display, and solar cell materials, and is made by thinly processing TPA, a petrochemical raw material. The PET film 22b has higher reflectance and lower transmittance than the metal-deposited film 21a, and when adjusting the transmittance and reflectance of the hologram mirror 20 by using these characteristics (that is, when adjusting the contrast ratio of the screen appropriately ) It can be used, and has the advantage of being excellent in heat resistance and resistant to scratches.

In addition, the PET film 22b has a mirror effect, that is, reflectivity, which affects the reflectance of the hologram mirror 20, but is less reflective as the hologram mirror 20 than the metal vapor deposition film 21a. It is adhered to the bottom surface of the film 21a and serves to assist its function. That is, the film assembly 22 provides characteristics that efficiently highlight their advantages by laminating the metal-deposited film 21a and the PET film 22b.

Lastly, the release paper 23 is the base layer 21 and the film assembly 22 are stacked well to perform the function, which is located at the farthest from the base layer 21 from which an image is output. Layer.

The hologram mirror 20 of the present invention has a low VL transmittance and a high VL reflectance compared to the conventional hologram display mirror, and thus, the reflection is clearer than the known hologram mirror made of glass, and the image is clear. It has the advantage of being able to look bright and bright.

At this time, it is said that an adhesive 24 is applied between each of the above-described layers so that they can be bonded. This adhesive 24 is used for the hologram mirror 20 in order to maintain the reflectivity and transmittance of the hologram mirror 20. Basically, it should have high transparency, and it should have strong adhesiveness to effectively bond each layer. To this end, the adhesive 24 of the present invention provides properties that exhibit the above-described characteristics, and may be specifically manufactured through a first solution manufacturing step, a second solution manufacturing step, and an adhesive completion step.

First, the first solution preparation step is one or more of 1,6-hexanediol 15 to 25% by weight, 1,4-butanediol 10 to 20% by weight, acetone, ethyl acetate, and methyl ethyl ketone based on the total weight of the first solution. This is a process of preparing a first solution by mixing 60 to 75% by weight of a solvent which is a mixture of two. Here, 1,6-hexanediol (1,6-Hexanediol) and 1,4-butanediol (1,4-butandiol) are polyester-based polyols, which are the main materials of the adhesive, and are bonded with isocyanates to be described later to represent adhesive components. In addition, 1,6-hexanediol is a higher alcohol having a hydroxyl group at both ends, and this functional group is very suitable for use in adhesives because its chemical reactivity is very fast. At this time, acetone, ethyl acetate, and methyl ethyl ketone are preferable to be used as a solvent for preparing an adhesive because they play a role as an organic solvent and are less harmful to the human body than other industrially used solvents.

Next, the second solution preparation step is from 85 to 90% by weight of the first solution, 5 to 10% by weight of toluene diisocyanate, and 0.1 to dibutyl tin dilaurate, based on the total weight of the second solution. This is a process of preparing a second solution by mixing 5% by weight. Here, toluene diisocyanate has an isocyanate group (NCO-) at the terminal, so it is mixed and polymerized with polyester-based polyols in the primary solution, so that it has adhesive strength.Dibutyltindyaurate is a reaction catalyst, polyester-based It plays a role as a catalyst that accelerates the reaction between polyol and toluene diisocyanate and accelerates the speed of completion of the adhesive.

Finally, the adhesive completion step is a process of completing the adhesive by mixing 65 to 80% by weight of the second solution and 20 to 35% by weight of the adhesive auxiliary agent at 20 to 30°C for 20 to 60 hours based on the total weight of the adhesive.

Here, the adhesion aid is a highly viscous material and can improve adhesion and spreadability, and a specific manufacturing method will be described later.

The adhesive prepared in this way plays a role of strongly maintaining the adhesion of each layer of the hologram mirror 20, and at the same time, it can also improve the durability of the hologram mirror 20, and has excellent resistance to heat. Even when heat is released, it is not affected by it and can maintain adhesion.

In this case, the manufacturing method of the adhesion aid may be manufactured through a first material manufacturing step, a second material manufacturing step, a third material manufacturing step, and an adhesion aid completion step.

First, the primary material preparation step is a primary material by mixing 70 to 85% by weight of water, 1 to 10% by weight of PVA, 0.05 to 0.5% by weight of glycerin, and 5 to 20% by weight of sodium siemsi based on the total weight of the primary material. It is the process of manufacturing.

Here, water plays a role as a solvent, and glycerin is a material that is generally used for lubrication and can improve application properties. In addition, sodium siemsi (Na-CMC) serves as a thickener that can increase viscosity, and polyvinyl alcohol (PVA) is a silica-based material and can provide a function of improving adhesion.

Next, the secondary material manufacturing step is a secondary material by mixing 55 to 70% by weight of ethanol, 25 to 40% by weight of polybutene, 0.05 to 1% by weight of histoacrylic, and 0.1 to 5% by weight of preservative, based on the total weight of the secondary material. It is the process of manufacturing a substance.

Here, ethanol serves as a solvent, and cyanoacrylate-based materials, histoacryl and polybutene, were added to impart elasticity. In addition, OIT (octylisothiazolone) can be used as a preservative that can prevent mold and bacteria and improve the shelf life of the adhesion aid.

Thereafter, in the step of preparing the third material, 40 to 60% by weight of the primary material and 40 to 60% by weight of the secondary material are heated at 55 to 70°C for 40 to 80 minutes, and then 10 to 30°C. It is a process of manufacturing a tertiary material by cooling in.

Finally, the bonding aid completion step is 10 to 30 at a speed of 1000 to 3000 rpm after mixing 80 to 95% by weight of the tertiary material, 1 to 10% by weight of guar gum, and 1 to 10% by weight of casein based on the total weight of the adhesion aid. It is a process of stirring for minutes to complete the adhesion aid.

As another embodiment, a coating agent may be applied to the surface (outer surface) of the base layer 21 to form a coating film. This coating film can improve the stain resistance of the holographic mirror, thus implementing a holographic image due to dust and contamination. Interference can be prevented, and durability of the hologram mirror 20 can be improved.

In this case, the coating agent may be prepared through a first solution preparation step, a second solution preparation step, and a coating agent completion step.

First, the first solution preparation step is a process of preparing a first solution by mixing 30 to 70% by weight of methyl ethyl ketone and 30 to 70% by weight of THF, based on the total weight of the first solution, and is a process of preparing a solvent for the coating agent. . Here, methyl ethyl ketone (Methyl Ethyl Ketone) is a material that is photo-cured through UV, does not cause whitening, and is a suitable component as a solvent for a coating agent, and a colorless organic material, THF (Tetrahydrofuran), is used as an organic solvent.

Next, the second solution preparation step is, based on the total weight of the secondary solution, bisphenol ethyl glycerolate 20 to 35% by weight, diacrylate 20 to 35% by weight, 1,6 hexanediol diacrylate 10 to 25% by weight, glycerol proxy 10 to 25% by weight of a rate and 10 to 25% by weight of triacrylate are mixed and heated at 100 to 300°C for 10 to 30 minutes to prepare a secondary solution, which is a process of preparing a solute of a coating agent.

Here, bisphenol a glycerolate, diacrylate, 1,6 hexanediol diacrylate (1.6-Hexanediol diacrylate), glycerol propoxylate, and triacrylate are all As a material that can provide an antistatic effect, it can help to prevent the adsorption of dust due to static electricity by reducing static electricity in the coating. Here, all of the above-described materials are one type of surfactant, and these surfactants can electrically neutralize static electricity.

Thereafter, the coating agent completion step is 30 to 60 seconds at a speed of 2000 to 4000 rpm after mixing 25 to 45% by weight of the first solution, 25 to 45% by weight of the second solution, and 15 to 30% by weight of the coating aid based on the total weight of the coating agent. It is a process of stirring while completing the coating.

Here, the coating aid is a material that can improve the durability of the holographic mirror by adding it to the coating agent to provide high hardness when cured.

The coating agent is applied to the surface of the base layer 21 and cured. At this time, the coating agent may be applied through a spray or a brush, and the method is not limited. In addition, for curing the coating agent, UV light curing should be performed for 30 to 60 seconds using a UV lamp.

The coating agent manufactured through this process helps to prevent the phenomenon of dust adhering to the surface of the hologram mirror 20 by reducing the generation of static electricity, and thus may help to implement a holographic image through the hologram mirror 20. .

At this time, the coating aid may be prepared through the manufacturing step of the coating aid.

The step of preparing the coating aid is a process of preparing a coating aid by mixing 10 to 50% by weight of spherical silica and 50 to 90% by weight of hybrid sol, and stirring for 10 to 15 hours, based on the total weight of the coating aid. At this time, it is preferable to use a spherical silica having a size of 70 to 100 nm, and is a material having hydrophobicity, heat resistance, and chemical resistance. Next, as an organic-inorganic composite material, a hybrid sol containing fluorine and having a hydrophobic property can serve as a binder to provide assistance in forming a coating film, and a specific manufacturing method will be described later.

The manufacturing method of the hybrid sol described above may be manufactured through a sub-solution manufacturing step and a hybrid sol completion step.

First, the sub-solution preparation step is based on the total weight of the sub-solution, GPTMS 5 to 20% by weight, PTMS 5 to 20% by weight, TTiP 5 to 20% by weight, ethanol 40 to 60% by weight, 0.1M hydrochloric acid 1 to 5% by weight. This is a process of preparing a sub solution after mixing and heating at 60 to 70°C for 30 to 50 hours.

Here, the organosilane compounds GPTMS ((3-Glycidyloxypropyl)trimethoxysilane), PTMS (Trimethoxypropylsilane), and TiO2 inorganic compound TTiP (Titanium(IV) isopropoxide) are the main materials of the hybrid sol.

Next, the hybrid sol completion step is a process of completing the hybrid sol after mixing 95 to 99.9% by weight of the sub solution and 0.1 to 5% by weight of PFOTES and heating at 60 to 70°C for 30 to 50 hours based on the total weight of the hybrid sol. to be. Here, PFOTES (Perfluorooctyltriethoxysilane) is a material containing fluorine and serves to impart hydrophobicity.

The hybrid sol thus prepared is a new material that can complement each other's strengths and weaknesses of organic and inorganic compounds. It effectively disperses spherical silica, which is a material of a coating aid, and makes it possible to firmly adhere to the holographic mirror 20. By containing PFOTES, it has hydrophobic properties.

As described so far, the configuration and operation of the holographic image reproducing system with enhanced three-dimensional effect according to the present invention has been expressed in the above description and drawings, but these are only described as examples, and the spirit of the present invention is not limited to the above description and drawings. It goes without saying that various changes and changes are possible within the scope of the technical idea of the present invention.

10: image management device 11: image editing unit
11a: Saturation Control Part 15: Monitor
20: holographic mirror 21: base layer
22: film assembly 22a: metal-deposited film
22b: PET film 23: release paper
24: adhesive 30: intermediate bulkhead
31: opening 40: lighting device
50: screen 60: reflector
70: filter 71: through hole
80: illuminance sensor 81: reflector illuminance sensor
82: external light illuminance sensor 100: three-dimensional decoration

Claims (5)

As the outermost layer on which an image is output, a base layer made of any one of translucent plastic and glass,
A film assembly bonded to the bottom of the base layer, in which a metal-deposited film and a PET film are sequentially laminated, and
It is made by laminating with a release paper adhered to the bottom of the film assembly,
An adhesive is applied between the base layer, the film assembly, and the release paper, and a method of manufacturing a holographic mirror to which these are bonded,
The adhesive,
Based on the total weight of the first solution, 1,6-hexanediol 15 to 25% by weight, 1,4-butanediol 10 to 20% by weight, acetone, ethyl acetate, methyl ethyl ketone or a mixture of one or more solvents 60 to 75% by weight Mixing% to prepare a first solution;
The second solution by mixing 85 to 90% by weight of the first solution, 5 to 10% by weight of toluene diisocyanate, and 0.1 to 5% by weight of dibutyl tin dilaurate, based on the total weight of the second solution. Preparing a solution, preparing a second solution;
Characterized in that produced through the step of mixing 65 to 80% by weight of the second solution and 20 to 35% by weight of an adhesion aid including PVA based on the total weight of the adhesive at 20 to 30°C for 20 to 60 hours, How to make a holographic mirror. The method of claim 1,
The adhesion aid,
Preparation of a primary material by mixing 70 to 85% by weight of water, 1 to 10% by weight of PVA, 0.05 to 0.5% by weight of glycerin, and 5 to 20% by weight of sodium siemsi based on the total weight of the primary material step;
A secondary material for preparing a secondary material by mixing 55 to 70% by weight of ethanol, 25 to 40% by weight of polybutene, 0.05 to 1% by weight of histoacrylic, and 0.1 to 5% by weight of a preservative based on the total weight of the secondary material Manufacturing steps;
To prepare a tertiary material, 40 to 60% by weight of the primary material and 40 to 60% by weight of the secondary material are heated at 55 to 70°C for 40 to 80 minutes, and then cooled at 10 to 30°C, based on the total weight of the tertiary material. A third material manufacturing step;
After mixing 80 to 95% by weight of a tertiary substance, 1 to 10% by weight of guar gum, and 1 to 10% by weight of casein, based on the total weight of the adhesion aid, stirring at a speed of 1000 to 3000 rpm for 10 to 30 minutes to complete the adhesion aid A method of manufacturing a holographic mirror, characterized in that it is manufactured through the step of. The method of claim 1,
The base layer,
A method of manufacturing a holographic mirror, characterized in that the coating film is formed after UV light curing for 30 to 60 seconds by applying a coating agent to the surface of the translucent plastic layer or the translucent glass layer. The method of claim 3,
The coating agent,
A first solution preparation step of preparing a first solution by mixing 30 to 70% by weight of methyl ethyl ketone and 30 to 70% by weight of THF based on the total weight of the first solution;
Based on the total weight of the secondary solution, bisphenol ethyl glycerolate 20 to 35% by weight, diacrylate 20 to 35% by weight, 1,6 hexanediol diacrylate 10 to 25% by weight, glycerol proxylate 10 to 25% by weight, tri After mixing 10 to 25% by weight of acrylate and heating at 100 to 300 °C for 10 to 30 minutes to prepare a second solution, a second solution preparation step;
Based on the total weight of the coating agent, 25 to 45% by weight of the first solution, 25 to 45% by weight of the second solution, and 15 to 30% by weight of a coating aid including spherical silica are mixed and then stirred at a speed of 2000 to 4000 rpm for 30 to 60 seconds. A method of manufacturing a holographic mirror, characterized in that it is manufactured through a step of completing the coating agent to prepare a coating agent. The method of claim 4,
The coating aid,
Prepared through a step of preparing a coating aid by mixing 10 to 50% by weight of spherical silica and 50 to 90% by weight of hybrid sol based on the total weight of the coating aid and then stirring for 10 to 15 hours
The hybrid sol,
Based on the total weight of the sub-solution, after mixing 5 to 20% by weight of GPTMS, 5 to 20% by weight of PTMS, 5 to 20% by weight of TTiP, 40 to 60% by weight of ethanol, and 1 to 5% by weight of 0.1M hydrochloric acid, 60 to 70°C After heating for 30 to 50 hours to prepare a sub solution, a sub solution preparation step;
After mixing 95 to 99.9% by weight of the sub solution and 0.1 to 5% by weight of PFOTES based on the total weight of the hybrid sol, heating at 60 to 70° C. for 30 to 50 hours and then completing the hybrid sol; Characterized in, a method of manufacturing a holographic mirror.

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