WO2023055203A1 - Image glass and manufacturing method therefor - Google Patents

Abstract

The present invention relates to image glass and a manufacturing method therefor, and, more specifically, to: image glass having excellent sharpness of an image projected through the image glass and excellent durability; and a manufacturing method therefor.

Description

Image glass and its manufacturing method

The present invention relates to image glass and a method for manufacturing the same, and more particularly, to image glass having excellent sharpness of an image projected through the image glass and excellent durability, and a method for manufacturing the same.

Recently, local governments or companies have been using a lot of equipment called logo jector or logo light for promotion or advertisement. The logo projector or logo light is a device that transmits light through image glass and projects images and text desired by customers on various places such as walls, floors, and ceilings. You can maximize the promotional effect by using the same custom design.

These recently used devices are mainly called logo projectors, logo lights, etc., and are used by arranging image glass on which an image is printed on a light source to project an image onto the floor.

However, since the image glass is generally made of glass, and it is not easy to print an image on the glass, there is a problem in that only two or three color images are projected.

In addition, when the logo projector or the logo light is installed outside or inside and used, impact may occur due to various factors, and the resulting image glass is easily broken.

The present invention has been devised in view of the above points, and an object of the present invention is to provide an image glass having excellent sharpness of an image projected through the image glass and excellent durability, and a manufacturing method thereof.

In order to solve the above problems, the image glass of the present invention comprises a first sub-image glass, a second sub-image glass disposed on one surface of the first sub-image glass, and a third sub-image glass disposed on one surface of the second sub-image glass. include

As a preferred embodiment of the present invention, a first silicone-based transparent adhesive for attaching the first sub-image glass and the second sub-image glass may be provided between the first sub-image glass and the second sub-image glass.

As a preferred embodiment of the present invention, a second silicone-based transparent adhesive for attaching the second sub-image glass and the third sub-image glass may be provided between the second sub-image glass and the third sub-image glass.

As a preferred embodiment of the present invention, the first sub-image glass may include a first base glass and a first color layer disposed on one surface of the first base glass to project red.

As a preferred embodiment of the present invention, a first epoxy-based transparent adhesive for attaching the first base glass and the first color layer may be provided between the first base glass and the first color layer.

As a preferred embodiment of the present invention, the second sub-image glass may include a second base glass and a second color layer disposed on one surface of the second base glass and projecting green.

As a preferred embodiment of the present invention, a second epoxy-based transparent adhesive for attaching the second base glass and the second color layer may be provided between the second base glass and the second color layer.

As a preferred embodiment of the present invention, the third sub-image glass may include a third base glass and a third color layer disposed on one surface of the third base glass to project blue.

As a preferred embodiment of the present invention, a third epoxy-based transparent adhesive for attaching the third base glass and the third color layer may be provided between the third base glass and the third color layer.

As a preferred embodiment of the present invention, the first silicone-based transparent adhesive may include a compound represented by Formula 1 and a compound represented by Formula 2 below.

[Formula 1]

In Formula 1, R ₁ , R ₂ and R ₅ are each independently —H, a C1 to C12 straight-chain alkyl group or a C3 to C12 branched alkyl group, and R ₃ and R ₄ are each independently an alkoxy group. group, and B ₁ , B ₂ , B ₃ and B ₄ are each independently -CH ₂ -, -CH ₂ CH ₂ -, -CH ₂ CH ₂ CH ₂ -, -CH ₂ CH ₂ CH ₂ CH ₂ - , -CH ₂ CH ₂ CH ₂ CH ₂ CH ₂ -, -CH ₂ CH ₂ CH ₂ CH ₂ CH ₂ CH ₂ - or -CH ₂ CH ₂ CH ₂ CH ₂ CH ₂ CH ₂ CH ₂ -, and n is 5 is a rational number that satisfies ~ 50.

[Formula 2]

In Formula 2, R ₆ , R ₇ , R ₈ , R ₉ , R ₁₀ and R ₁₁ are each independently -H, a C1 to C12 linear alkyl group or a C3 to C12 branched alkyl group, and B ₅ And B ₆ are each independently -CH ₂ -, -CH ₂ CH ₂ -, -CH ₂ CH ₂ CH ₂ -, -CH ₂ CH ₂ CH ₂ CH ₂ - or -CH ₂ CH ₂ CH _{2 CH 2 CH 2} - is.

As a preferred embodiment of the present invention, the second silicone-based transparent adhesive may include a compound represented by Formula 1 and a compound represented by Formula 2 above.

As a preferred embodiment of the present invention, the first epoxy-based transparent adhesive may include a bisphenol A-type epoxy resin, a rubber-modified epoxy resin, and a cresol novolak epoxy resin.

As a preferred embodiment of the present invention, the second epoxy-based transparent adhesive may include a bisphenol A-type epoxy resin, a rubber-modified epoxy resin, and a cresol novolak epoxy resin.

As a preferred embodiment of the present invention, the third epoxy-based transparent adhesive may include a bisphenol A-type epoxy resin, a rubber-modified epoxy resin, and a cresol novolak epoxy resin.

Meanwhile, in the manufacturing method of the image glass of the present invention, the first base glass and the first color layer for projecting red are manufactured by cutting the first transparent glass, and the second base glass is cut by cutting the second transparent glass. and a first step of manufacturing a second color layer for projecting green, and cutting the third transparent glass to produce a third base glass and a third color layer for projecting blue, respectively. An epoxy-based transparent adhesive is provided between the glass and the first color layer to attach the first base glass and the first color layer to manufacture the first sub-image glass, and the epoxy is placed between the second base glass and the second color layer. The second sub-image glass is manufactured by attaching the second base glass and the second color layer using a transparent adhesive, and the third base glass is provided with an epoxy-based transparent adhesive between the third base glass and the third color layer. The second step of manufacturing the third sub-image glass by attaching the first and third color layers, respectively, and the first sub-image glass and the second sub-image glass by providing a silicon-based transparent adhesive between the first and second sub-image glasses. A third step of manufacturing the image glass by attaching the image glass and attaching the second sub-image glass and the third sub-image glass by providing a silicon-based transparent adhesive between the second and third sub-image glass. can do.

The image glass and its manufacturing method of the present invention have excellent sharpness of an image projected through the image glass.

In addition, the image glass and the manufacturing method of the present invention are excellent in durability.

1 is a cross-sectional view of an image glass according to a preferred embodiment of the present invention.

2 is a cross-sectional view of an image glass according to another preferred embodiment of the present invention.

3 is a cross-sectional view of a sub-image glass according to a preferred embodiment of the present invention.

4 is a cross-sectional view of a sub-image glass according to another preferred embodiment of the present invention.

5 is a block diagram showing an image glass manufacturing system according to an embodiment of the present invention.

6 is a view showing a state in which image glass according to an embodiment of the present invention is mounted on a logo projector.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily carry out the present invention. This invention may be embodied in many different forms and is not limited to the embodiments set forth herein. In order to clearly describe the present invention in the drawings, parts irrelevant to the description are omitted, and the same reference numerals are added to the same or similar components throughout the specification.

The manufacturing method of the image glass of the present invention includes first to third steps.

Specifically, the image glass of the present invention may be manufactured through the image glass manufacturing system 10 shown in FIG. 5 . The image glass manufacturing system 10 may include a color analysis unit 100 , a cutting unit 200 and a glass bonding unit 300 . The color analyzer 100 may analyze the color of an original image to be projected. The image to be projected may be composed of colors, and the color analysis unit 100 divides the original image into unit pixels divided into predetermined sizes, and each unit pixel is red, green, and blue ( blue) can be analyzed. In this case, colors of various colors may be created by combining red, green, and blue colors and light emitted from the logo projector. All images may be composed of a combination of the red, green, and blue colors and light emitted from the logo projector. Therefore, when the color analyzer 100 analyzes the color of the original image to be projected, the colors of each unit pixel are the red, green, and blue colors and the light emitted from the logo projector. It is possible to calculate how the ratios of Accordingly, the color analyzer 100 may calculate the color of a unit pixel as a combination ratio of red, green, and blue. At this time, when the ratio of red, green, and blue is calculated, the density of the combined colors can be adjusted by cutting each transparent glass to prepare a color layer projecting a desired color.

The cutting unit 200 may cut the surface of the transparent glass using a laser based on the data analyzed by the color analysis unit 100 . The transparent glass may be cut to include a base glass and a color layer, and the cutting unit 200 may manufacture a color layer projecting only a desired color by cutting the color layer of the transparent glass.

In this way, through the image glass manufacturing system 10, in the first step of the manufacturing method of the image glass of the present invention, the first base glass and the first color layer for projecting red are formed by cutting the first transparent glass. can be manufactured In addition, the second base glass and the second color layer for projecting green may be manufactured by cutting the second transparent glass. In addition, a third base glass and a third color layer for projecting blue may be manufactured by cutting the third transparent glass.

The glass bonding unit 300 may manufacture sub-image glass by bonding the base glass cut by the cutting unit 200 and the color layer. In addition, the glass joint 300 may manufacture image glass by bonding between sub-image glasses. In this way, an adhesive may be used to bond between the base glass and the color layer or between the image glasses through the glass bonding portion 300 .

Specifically, in the second step of the manufacturing method of the image glass of the present invention, an epoxy-based transparent adhesive is provided between the first base glass and the first color layer to attach the first base glass and the first color layer to form the first sub Image glass can be manufactured. In addition, the second sub-image glass may be manufactured by attaching the second base glass and the second color layer by providing an epoxy-based transparent adhesive between the second base glass and the second color layer. In addition, the third sub-image glass may be manufactured by attaching the third base glass and the third color layer by providing an epoxy-based transparent adhesive between the third base glass and the third color layer.

Furthermore, in the third step of the manufacturing method of the image glass of the present invention, a silicon-based transparent adhesive is provided between the first sub-image glass and the second sub-image glass to attach the first sub-image glass and the second sub-image glass, The image glass may be manufactured by attaching the second sub-image glass and the third sub-image glass by providing a silicon-based transparent adhesive between the second and third sub-image glasses.

On the other hand, as the epoxy-based transparent adhesive, an epoxy-based adhesive in which a bisphenol A-type epoxy resin, a rubber-modified epoxy resin, and a cresol novolac epoxy resin are mixed may be used, preferably based on 100 parts by weight of the bisphenol-A-type epoxy resin, rubber-modified An epoxy adhesive in which 40 to 60 parts by weight of an epoxy resin and 40 to 60 parts by weight of a cresol novolak epoxy resin are mixed may be used, more preferably 45 to 55 parts by weight of a rubber-modified epoxy resin based on 100 parts by weight of a bisphenol A type epoxy resin An epoxy-based adhesive in which 45 to 55 parts by weight of cresol novolak epoxy resin is mixed may be used. If, as an epoxy-based adhesive, bisphenol A type epoxy resin, rubber-modified epoxy resin, and cresol novolak epoxy resin are not all mixed, or if a mixture outside the range of parts by weight described above is used, not only the sharpness of the projected image is excellent, but also However, there may be a problem in that it is difficult to manufacture image glass having excellent durability.

Additionally, the epoxy-based transparent adhesive may further mix one selected from a curing agent, a curing accelerator, and a solvent, and preferably may further mix a curing agent, a curing accelerator, and a solvent. At this time, based on 100 parts by weight of the epoxy adhesive, 1 to 10 parts by weight, preferably 1 to 5 parts by weight of the curing agent, 0.1 to 5 parts by weight, preferably 0.5 to 2 parts by weight of the curing accelerator, and 50 to 150 parts by weight of the solvent. Part, preferably 40 to 60 parts by weight may be mixed.

Meanwhile, a dicyandiamide-based curing agent may be preferably used as a curing agent, 2-undecylimidazole may be preferably used as a curing accelerator, and methyl ethyl ketone may be preferably used as a solvent.

Furthermore, as a silicone-based transparent adhesive, a compound represented by Formula 1 and a compound represented by Formula 2 may be mixed.

[Formula 1]

In Formula 1, R ₁ , R ₂ and R ₅ are each independently -H, a C1-C12 straight-chain alkyl group or a C3-C12 branched alkyl group, preferably a C1-C12 straight-chain alkyl group, , more preferably a C1-C3 straight-chain alkyl group.

In Formula 1, R ₃ and R ₄ are each independently an alkoxy group, preferably a methoxy group or an ethoxy group.

In Formula 1, B ₁ , B ₂ , B ₃ and B ₄ are each independently -CH ₂ -, -CH ₂ CH ₂ -, -CH ₂ CH ₂ CH ₂ -, -CH ₂ CH ₂ CH ₂ CH ₂ -, -CH ₂ CH ₂ CH ₂ CH ₂ CH ₂ -, -CH ₂ CH ₂ CH ₂ CH ₂ CH ₂ CH ₂ - or -CH ₂ CH ₂ CH ₂ CH ₂ CH ₂ CH ₂ CH ₂ -; Preferably -CH ₂ CH ₂ -, -CH ₂ CH ₂ CH ₂ - or -CH ₂ CH ₂ CH ₂ CH ₂ -, -CH ₂ CH ₂ CH ₂ CH ₂ CH ₂ -.

In Formula 1, n is a rational number that satisfies 5 to 50, preferably a rational number that satisfies 15 to 25.

[Formula 2]

In Formula 2, R ₆ , R ₇ , R ₈ , R ₉ , R ₁₀ and R ₁₁ are each independently -H, a C1-C12 linear alkyl group or a C3-C12 branched alkyl group, preferably is a C1-C12 straight-chain alkyl group, more preferably a C1-C3 straight-chain alkyl group.

In Formula 2, B ₅ and B ₆ are each independently -CH ₂ -, -CH ₂ CH ₂ -, -CH ₂ CH ₂ CH ₂ -, -CH ₂ CH ₂ CH ₂ CH ₂ - or -CH ₂ CH ₂ CH ₂ CH ₂ CH ₂ -, preferably -CH ₂ CH ₂ -, -CH ₂ CH ₂ CH ₂ - or -CH ₂ CH ₂ CH ₂ CH ₂ -.

Specifically, the silicone-based transparent adhesive may be a mixture of 10 to 30 parts by weight, preferably 15 to 25 parts by weight of the compound represented by Formula 2, based on 100 parts by weight of the compound represented by Formula 1. If it is out of the weight part range, it may be difficult to manufacture image glass having excellent sharpness of a projected image and excellent durability.

Additionally, the silicone-based transparent adhesive may further mix one selected from a crosslinking agent and a solvent, and preferably may further mix a crosslinking agent and a solvent. At this time, based on 100 parts by weight of the compound represented by Formula 1, 1 to 10 parts by weight of a crosslinking agent, preferably 3 to 7 parts by weight, and 100 to 200 parts by weight of a solvent, preferably 110 to 130 parts by weight may be mixed. there is.

On the other hand, N,N,N',N'-tetraglycidyl-m-xylenediamine can be preferably used as a crosslinking agent, and methyl ethyl ketone can be preferably used as a solvent.

Furthermore, referring to FIGS. 1 and 2, the image glass of the present invention includes a first sub-image glass 3, a second sub-image glass 2 disposed on one surface of the first sub-image glass 3, and a second sub-image glass 3. A third sub-image glass 1 disposed on one surface of the image glass 2 may be included.

At this time, the first silicone-based transparent adhesive for attaching the first sub-image glass 3 and the second sub-image glass 2 between the first sub-image glass 3 and the second sub-image glass 2 ( 5) may be provided. Specifically, as shown in FIG. 1 , the first silicone-based transparent adhesive 5 may be provided along the edge of one surface where the first sub-image glass 3 and the second sub-image glass 2 face each other, as shown in FIG. 2 . As shown, the first sub-image glass 3 and the second sub-image glass 2 may be provided on all surfaces facing each other.

In addition, a second silicone-based transparent adhesive 4 for attaching the second sub-image glass 2 and the third sub-image glass 1 between the second sub-image glass 2 and the third sub-image glass 1 . ) may be provided. Specifically, as shown in FIG. 1 , the second silicone-based transparent adhesive 4 may be provided along the edge of one surface where the second sub-image glass 2 and the third sub-image glass 1 face each other, as shown in FIG. 2 . As shown, the second sub-image glass 2 and the third sub-image glass 1 may be provided on all surfaces facing each other.

Meanwhile, referring to FIGS. 3 and 4 , the first sub-image glass 3 projects the first base glass 7 and a red color disposed on one surface of the first base glass 7 , and the first color is projected. Layer 8 may be included. At this time, a first epoxy-based transparent adhesive 8 for attaching the first base glass 7 and the first color layer 6 is provided between the first base glass 7 and the first color layer 6. may be provided. Specifically, the first epoxy-based transparent adhesive 8 may be provided along the edge of one surface on which the first base glass 7 and the first color layer 6 face each other, as shown in FIG. As shown, the first base glass 7 and the first color layer 6 may be provided on all surfaces facing each other.

In addition, the second sub-image glass 2 may include a second base glass 7 and a second color layer 6 disposed on one surface of the second base glass 7 and projecting green. At this time, a second epoxy-based transparent adhesive 8 for attaching the second base glass 7 and the second color layer 6 is provided between the second base glass 7 and the second color layer 6. may be provided. Specifically, the second epoxy-based transparent adhesive 8 may be provided along the edge of one side of the second base glass 7 and the second color layer 6 facing each other, as shown in FIG. As shown, the second base glass 7 and the second color layer 6 may be provided on all surfaces facing each other.

In addition, the third sub-image glass 1 may include a third base glass 7 and a third color layer 8 disposed on one surface of the third base glass 7 and projecting blue. At this time, a third epoxy-based transparent adhesive 8 for attaching the third base glass 7 and the third color layer 8 is provided between the third base glass 7 and the third color layer 8. may be provided. Specifically, the third epoxy-based transparent adhesive 8 may be provided along the edge of one surface where the third base glass 7 and the third color layer 6 face each other as shown in FIG. 3, and in FIG. As shown, the third base glass 7 and the third color layer 6 may be provided on all surfaces facing each other.

Meanwhile, each of the first sub-image glass 3 , the second sub-image glass 2 , and the third sub-image glass 1 may be manufactured through the aforementioned manufacturing method of the sub-image glass.

In addition, each of the first silicone-based transparent adhesive 5 and the second silicone-based transparent adhesive 4 may include a compound represented by Chemical Formula 1 and a compound represented by Chemical Formula 2 below.

[Formula 1]

In Formula 1, R ₁ , R ₂ and R ₅ are each independently -H, a C1-C12 straight-chain alkyl group or a C3-C12 branched alkyl group, preferably a C1-C12 straight-chain alkyl group, , more preferably a C1-C3 straight-chain alkyl group.

In Formula 1, R ₃ and R ₄ are each independently an alkoxy group, preferably a methoxy group or an ethoxy group.

In Formula 1, B ₁ , B ₂ , B ₃ and B ₄ are each independently -CH ₂ -, -CH ₂ CH ₂ -, -CH ₂ CH ₂ CH ₂ -, -CH ₂ CH ₂ CH ₂ CH ₂ -, -CH ₂ CH ₂ CH ₂ CH ₂ CH ₂ -, -CH ₂ CH ₂ CH ₂ CH ₂ CH ₂ CH ₂ - or -CH ₂ CH ₂ CH ₂ CH ₂ CH ₂ CH ₂ CH ₂ -; Preferably -CH ₂ CH ₂ -, -CH ₂ CH ₂ CH ₂ - or -CH ₂ CH ₂ CH ₂ CH ₂ -, -CH ₂ CH ₂ CH ₂ CH ₂ CH ₂ -.

In Formula 1, n is a rational number that satisfies 5 to 50, preferably a rational number that satisfies 15 to 25.

[Formula 2]

In Formula 2, R ₆ , R ₇ , R ₈ , R ₉ , R ₁₀ and R ₁₁ are each independently -H, a C1-C12 linear alkyl group or a C3-C12 branched alkyl group, preferably is a C1-C12 straight-chain alkyl group, more preferably a C1-C3 straight-chain alkyl group.

In Formula 2, B ₅ and B ₆ are each independently -CH ₂ -, -CH ₂ CH ₂ -, -CH ₂ CH ₂ CH ₂ -, -CH ₂ CH ₂ CH ₂ CH ₂ - or -CH ₂ CH ₂ CH ₂ CH ₂ CH ₂ -, preferably -CH ₂ CH ₂ -, -CH ₂ CH ₂ CH ₂ - or -CH ₂ CH ₂ CH ₂ CH ₂ -.

Specifically, the first silicone-based transparent adhesive and the second silicone-based transparent adhesive are each 10 to 30 parts by weight, preferably 15 to 25 parts by weight of the compound represented by Formula 2 based on 100 parts by weight of the compound represented by Formula 1 If it is out of this weight part range, it may be difficult to manufacture image glass having excellent sharpness of a projected image and excellent durability.

Additionally, each of the first silicone-based transparent adhesive and the second silicone-based transparent adhesive may further include one selected from a crosslinking agent and a solvent, and preferably further include a crosslinking agent and a solvent. At this time, based on 100 parts by weight of the compound represented by Formula 1, 1 to 10 parts by weight, preferably 3 to 7 parts by weight of a crosslinking agent and 100 to 200 parts by weight, preferably 110 to 130 parts by weight of a solvent may be included. there is.

Meanwhile, N,N,N',N'-tetraglycidyl-m-xylenediamine may be preferably included as a crosslinking agent, and methyl ethyl ketone may be preferably included as a solvent.

In addition, each of the first epoxy-based transparent adhesive 8, the second epoxy-based transparent adhesive 8, and the third epoxy-based transparent adhesive 8 includes a bisphenol A-type epoxy resin, a rubber-modified epoxy resin, and a cresol novolac epoxy resin. An epoxy adhesive containing 40 to 60 parts by weight of a rubber-modified epoxy resin and 40 to 60 parts by weight of a cresol novolac epoxy resin based on 100 parts by weight of a bisphenol A type epoxy resin. It may include, more preferably, an epoxy-based adhesive comprising 45 to 55 parts by weight of a rubber-modified epoxy resin and 45 to 55 parts by weight of a cresol novolac epoxy resin based on 100 parts by weight of a bisphenol A type epoxy resin. there is. If, as the epoxy adhesive, bisphenol A type epoxy resin, rubber-modified epoxy resin, and cresol novolac epoxy resin are not included or included outside the range of parts by weight described above, not only the sharpness of the projected image is excellent, but also the durability is excellent. Manufacturing of image glass may be a difficult problem.

Additionally, the epoxy-based transparent adhesive may further include one selected from a curing agent, a curing accelerator, and a solvent, and preferably may further include a curing agent, a curing accelerator, and a solvent. At this time, based on 100 parts by weight of the epoxy adhesive, 1 to 10 parts by weight, preferably 1 to 5 parts by weight of the curing agent, 0.1 to 5 parts by weight, preferably 0.5 to 2 parts by weight of the curing accelerator, and 50 to 150 parts by weight of the solvent. part, preferably 40 to 60 parts by weight.

Meanwhile, as a curing agent, preferably, a dicyandiamide-based curing agent may be included, as a curing accelerator, preferably 2-undecylimidazole may be included, and as a solvent, preferably methyl ethyl ketone may be included. .

Furthermore, referring to FIG. 6 , the image glass 400 of the present invention may be mounted inside the logo projector 500 . The logo projector 500 includes a lamp 502 that emits electricity, a heat sink 507 that dissipates and cools heat generated by the lamp 502, and a through passage 505 that transmits the light source of the lamp 502. , Image glass 400 that generates an image while light passes through the through passage 505, and a lens 503 that can adjust the magnification and projected resolution of the image screen image passing through the image glass 400. there is.

In the above, the present invention has been described with a focus on embodiments, but this is only an example and does not limit the embodiments of the present invention, and those skilled in the art to which the embodiments of the present invention belong will appreciate the essential characteristics of the present invention. It will be appreciated that various modifications and applications not exemplified above are possible within a range that does not deviate. For example, each component specifically shown in the embodiment of the present invention can be modified and implemented. And differences related to these modifications and applications should be construed as being included in the scope of the present invention as defined in the appended claims.

Preparation Example 1-1: Preparation of silicone-based transparent adhesive

Based on 100 parts by weight of the compound represented by Formula 1-1, 20 parts by weight of the compound represented by Formula 2-1, N,N,N',N'-tetraglycidyl-m-xylenediamine as a crosslinking agent A silicone-based transparent adhesive was prepared by mixing 5 parts by weight and 120 parts by weight of methyl ethyl ketone as a solvent.

[Formula 1-1]

In Formula 1-1, R ₁ , R ₂ and R ₅ are methyl groups, R ₃ and R ₄ are methoxy groups, B ₁ and B ₂ are -CH ₂ CH ₂ CH ₂ -, and B ₃ and B ₄ is -CH ₂ CH ₂ -, and n is a rational number satisfying 20.

[Formula 2-1]

In Formula 2-1, R ₆ , R ₇ , R ₈ , R ₉ , R ₁₀ and R ₁₁ are methyl groups, and B ₅ and B ₆ are -CH ₂ CH ₂ CH ₂ -.

Preparation Example 1-2: Preparation of silicone-based transparent adhesive

With respect to 100 parts by weight of the compound represented by Formula 1-1, 5 parts by weight of N,N,N',N'-tetraglycidyl-m-xylenediamine as a crosslinking agent and 120 parts by weight of methyl ethyl ketone as a solvent were mixed Thus, a silicone-based transparent adhesive was prepared.

Preparation Example 1-3: Preparation of silicone-based transparent adhesive

Based on 100 parts by weight of the compound represented by Formula 1-1, 5 parts by weight of the compound represented by Formula 2-1, N,N,N',N'-tetraglycidyl-m-xylenediamine as a crosslinking agent A silicone-based transparent adhesive was prepared by mixing 5 parts by weight and 120 parts by weight of methyl ethyl ketone as a solvent.

Preparation Example 1-4: Preparation of silicone-based transparent adhesive

Based on 100 parts by weight of the compound represented by Formula 1-1, 5 parts by weight of the compound represented by Formula 2-1, N,N,N',N'-tetraglycidyl-m-xylenediamine as a crosslinking agent A silicone-based transparent adhesive was prepared by mixing 35 parts by weight and 120 parts by weight of methyl ethyl ketone as a solvent.

Preparation Example 2-1: Preparation of Epoxy-Based Transparent Adhesive

An epoxy-based transparent adhesive was prepared by mixing 3 parts by weight of a dicyandiamide-based curing agent, 1 part by weight of 2-undecylimidazole as a curing accelerator, and 80 parts by weight of methyl ethyl ketone as a solvent with respect to 100 parts by weight of the epoxy-based adhesive. At this time, the epoxy adhesive is based on 100 parts by weight of bisphenol A type epoxy resin (YD128, Kukdo Chemical), 50 parts by weight of rubber-modified epoxy resin (TSR-601, EPICLON) and cresol novolak epoxy resin (YDCN-500-7P , Kukdo Chemical) 50 parts by weight was used.

Preparation Example 2-2: Preparation of Epoxy-Based Transparent Adhesive

An epoxy-based transparent adhesive was prepared by mixing 3 parts by weight of a dicyandiamide-based curing agent, 1 part by weight of 2-undecylimidazole as a curing accelerator, and 80 parts by weight of methyl ethyl ketone as a solvent with respect to 100 parts by weight of the epoxy-based adhesive. At this time, as the epoxy adhesive, a mixture of 50 parts by weight of a rubber-modified epoxy resin (TSR-601, EPICLON) was used with respect to 100 parts by weight of a bisphenol A type epoxy resin (YD128, Kukdo Chemical).

Preparation Example 2-3: Preparation of epoxy-based transparent adhesive

An epoxy-based transparent adhesive was prepared by mixing 3 parts by weight of a dicyandiamide-based curing agent, 1 part by weight of 2-undecylimidazole as a curing accelerator, and 80 parts by weight of methyl ethyl ketone as a solvent with respect to 100 parts by weight of the epoxy-based adhesive. At this time, the epoxy adhesive was a mixture of 50 parts by weight of cresol novolac epoxy resin (YDCN-500-7P, Kukdo Chemical) with respect to 100 parts by weight of bisphenol A type epoxy resin (YD128, Kukdo Chemical).

Preparation Example 2-4: Preparation of epoxy-based transparent adhesive

An epoxy-based transparent adhesive was prepared by mixing 3 parts by weight of a dicyandiamide-based curing agent, 1 part by weight of 2-undecylimidazole as a curing accelerator, and 80 parts by weight of methyl ethyl ketone as a solvent with respect to 100 parts by weight of the epoxy-based adhesive. At this time, the epoxy adhesive is 35 parts by weight of rubber-modified epoxy resin (TSR-601, EPICLON) and cresol novolak epoxy resin (YDCN-500-7P) based on 100 parts by weight of bisphenol A type epoxy resin (YD128, Kukdo Chemical) , Kukdo Chemical) 50 parts by weight was used.

Preparation Example 2-5: Preparation of epoxy-based transparent adhesive

An epoxy-based transparent adhesive was prepared by mixing 3 parts by weight of a dicyandiamide-based curing agent, 1 part by weight of 2-undecylimidazole as a curing accelerator, and 80 parts by weight of methyl ethyl ketone as a solvent with respect to 100 parts by weight of the epoxy-based adhesive. At this time, the epoxy adhesive is based on 100 parts by weight of bisphenol A type epoxy resin (YD128, Kukdo Chemical), 65 parts by weight of rubber-modified epoxy resin (TSR-601, EPICLON) and cresol novolak epoxy resin (YDCN-500-7P , Kukdo Chemical) 50 parts by weight was used.

Preparation Example 2-6: Preparation of epoxy-based transparent adhesive

An epoxy-based transparent adhesive was prepared by mixing 3 parts by weight of a dicyandiamide-based curing agent, 1 part by weight of 2-undecylimidazole as a curing accelerator, and 80 parts by weight of methyl ethyl ketone as a solvent with respect to 100 parts by weight of the epoxy-based adhesive. At this time, the epoxy adhesive is based on 100 parts by weight of bisphenol A type epoxy resin (YD128, Kukdo Chemical), 50 parts by weight of rubber-modified epoxy resin (TSR-601, EPICLON) and cresol novolak epoxy resin (YDCN-500-7P , Kukdo Chemical) 35 parts by weight was used.

Preparation Example 2-7: Preparation of epoxy-based transparent adhesive

An epoxy-based transparent adhesive was prepared by mixing 3 parts by weight of a dicyandiamide-based curing agent, 1 part by weight of 2-undecylimidazole as a curing accelerator, and 80 parts by weight of methyl ethyl ketone as a solvent with respect to 100 parts by weight of the epoxy-based adhesive. At this time, the epoxy adhesive is based on 100 parts by weight of bisphenol A type epoxy resin (YD128, Kukdo Chemical), 50 parts by weight of rubber-modified epoxy resin (TSR-601, EPICLON) and cresol novolak epoxy resin (YDCN-500-7P , Kukdo Chemical) 65 parts by weight was used.

Example 1: Manufacturing of image glass

(1) Using the image glass manufacturing system shown in FIG. 5, the first transparent glass was cut. Specifically, the first transparent glass was cut using a laser based on the data analyzed by the color analysis unit of the image glass manufacturing system, and the first transparent glass projected the first base glass and red color by cutting. Shiki was separated into a first color layer. Thereafter, the epoxy-based transparent adhesive prepared in Preparation Example 2-1 was provided between the first base glass and the first color layer to attach the first base glass and the first color layer to manufacture a first sub-image glass. .

(2) The second transparent glass was cut using the image glass manufacturing system shown in FIG. 5 . Specifically, based on the data analyzed by the color analysis unit of the image glass manufacturing system, the second transparent glass was cut using a laser, and the second transparent glass by cutting projected the second base glass and green. It was separated into a second color layer. Then, the second sub-image glass was manufactured by attaching the second base glass and the second color layer by providing the epoxy-based transparent adhesive prepared in Preparation Example 2-1 between the second base glass and the second color layer. .

(3) Using the image glass manufacturing system shown in FIG. 5, the third transparent glass was cut. Specifically, based on the data analyzed by the color analysis unit of the image glass manufacturing system, the third transparent glass was cut using a laser, and the third transparent glass by cutting projected the third base glass and blue. It was separated into a third color layer. Thereafter, the third base glass and the third color layer were attached by providing the epoxy-based transparent adhesive prepared in Preparation Example 2-1 between the third base glass and the third color layer to manufacture a third sub-image glass. .

(4) An image glass in which a first sub-image glass, a second sub-image glass, and a third sub-image glass are sequentially stacked was manufactured using the image glass manufacturing system shown in FIG. 5 . Specifically, the silicone-based transparent adhesive prepared in Preparation Example 1-1 is provided between the first sub-image glass and the second sub-image glass to attach the first sub-image glass and the second sub-image glass, and The image glass was manufactured by attaching the second sub-image glass and the third sub-image glass by providing the silicone-based transparent adhesive prepared in Preparation Example 1-1 between the glass and the third sub-image glass.

Example 2: Manufacturing of image glass

Image glass was manufactured in the same manner as in Example 1. However, unlike Example 1, the first base glass and the first color layer are attached by providing the silicon-based transparent adhesive prepared in Preparation Example 1-1 between the first base glass and the first color layer to form the first sub-image glass. The second sub-image glass was manufactured by attaching the second base glass and the second color layer by providing the silicon-based transparent adhesive prepared in Preparation Example 1-1 between the second base glass and the second color layer, The third base glass and the third color layer are attached by providing the silicon-based transparent adhesive prepared in Preparation Example 1-1 between the third base glass and the third color layer to manufacture a third sub-image glass, and finally image glass was made.

Example 3: Manufacturing of image glass

Image glass was manufactured in the same manner as in Example 1. However, unlike Example 1, the silicon-based transparent adhesive prepared in Preparation Example 1-2 is provided between the first sub-image glass and the second sub-image glass to attach the first and second sub-image glasses, and Image glass was manufactured by attaching the second sub-image glass and the third sub-image glass by providing the silicon-based transparent adhesive prepared in Preparation Example 1-2 between the second and third sub-image glasses.

Example 4: Manufacturing of image glass

Image glass was manufactured in the same manner as in Example 1. However, unlike Example 1, the silicone-based transparent adhesive prepared in Preparation Example 1-3 is provided between the first and second sub-image glasses to attach the first and second sub-image glasses, and Image glass was manufactured by attaching the second sub-image glass and the third sub-image glass by providing the silicone-based transparent adhesive prepared in Preparation Example 1-3 between the second and third sub-image glasses.

Example 5: Manufacturing of image glass

Image glass was manufactured in the same manner as in Example 1. However, unlike Example 1, the silicon-based transparent adhesive prepared in Preparation Examples 1-4 is provided between the first sub-image glass and the second sub-image glass to attach the first and second sub-image glasses, Image glass was manufactured by attaching the second sub-image glass and the third sub-image glass by providing the silicon-based transparent adhesive prepared in Preparation Example 1-4 between the second and third sub-image glasses.

Example 6: Manufacturing of image glass

Image glass was manufactured in the same manner as in Example 1. However, unlike Example 1, the first base glass and the first color layer are attached by providing the epoxy-based transparent adhesive prepared in Preparation Example 2-2 between the first base glass and the first color layer to form the first sub-image glass. was prepared, and the second sub-image glass was manufactured by attaching the second base glass and the second color layer by providing the epoxy-based transparent adhesive prepared in Preparation Example 2-2 between the second base glass and the second color layer. And, the third base glass and the third color layer were attached by providing the epoxy-based transparent adhesive prepared in Preparation Example 2-2 between the third base glass and the third color layer to prepare a third sub-image glass, Finally, image glass was manufactured.

Example 7: Manufacturing of image glass

Image glass was manufactured in the same manner as in Example 1. However, unlike Example 1, the first base glass and the first color layer are attached by providing the epoxy-based transparent adhesive prepared in Preparation Example 2-3 between the first base glass and the first color layer to form the first sub-image glass. was prepared, and the second sub-image glass was manufactured by attaching the second base glass and the second color layer by providing the epoxy-based transparent adhesive prepared in Preparation Example 2-3 between the second base glass and the second color layer. And, the third base glass and the third color layer are attached by providing the epoxy-based transparent adhesive prepared in Preparation Example 2-3 between the third base glass and the third color layer to manufacture a third sub-image glass, Finally, image glass was manufactured.

Example 8: Manufacturing of image glass

Image glass was manufactured in the same manner as in Example 1. However, unlike Example 1, the first base glass and the first color layer are attached by providing the epoxy-based transparent adhesive prepared in Preparation Examples 2-4 between the first base glass and the first color layer, thereby forming the first sub-image glass. was prepared, and the second sub-image glass was manufactured by attaching the second base glass and the second color layer by providing the epoxy-based transparent adhesive prepared in Preparation Example 2-4 between the second base glass and the second color layer. And, the third base glass and the third color layer are attached by providing the epoxy-based transparent adhesive prepared in Preparation Example 2-4 between the third base glass and the third color layer to prepare a third sub-image glass, Finally, image glass was manufactured.

Example 9: Manufacturing of image glass

Image glass was manufactured in the same manner as in Example 1. However, unlike Example 1, the first base glass and the first color layer are attached by providing the epoxy-based transparent adhesive prepared in Preparation Examples 2-5 between the first base glass and the first color layer to form the first sub-image glass. was prepared, and the second sub-image glass was manufactured by attaching the second base glass and the second color layer by providing the epoxy-based transparent adhesive prepared in Preparation Example 2-5 between the second base glass and the second color layer. And, the third base glass and the third color layer are attached by providing the epoxy-based transparent adhesive prepared in Preparation Example 2-5 between the third base glass and the third color layer to prepare a third sub-image glass, Finally, image glass was manufactured.

Example 10: Manufacturing of image glass

Image glass was manufactured in the same manner as in Example 1. However, unlike Example 1, the first base glass and the first color layer are attached by providing the epoxy-based transparent adhesive prepared in Preparation Examples 2-6 between the first base glass and the first color layer to form the first sub-image glass. was prepared, and the second sub-image glass was manufactured by attaching the second base glass and the second color layer by providing the epoxy-based transparent adhesive prepared in Preparation Example 2-6 between the second base glass and the second color layer. And, the third base glass and the third color layer are attached by providing the epoxy-based transparent adhesive prepared in Preparation Example 2-6 between the third base glass and the third color layer to prepare a third sub-image glass, Finally, image glass was manufactured.

Example 11: Manufacturing of image glass

Image glass was manufactured in the same manner as in Example 1. However, unlike Example 1, the first base glass and the first color layer are attached by providing the epoxy-based transparent adhesive prepared in Preparation Examples 2-7 between the first base glass and the first color layer to form the first sub-image glass. was prepared, and the second sub-image glass was manufactured by attaching the second base glass and the second color layer by providing the epoxy-based transparent adhesive prepared in Preparation Example 2-7 between the second base glass and the second color layer. The third base glass and the third color layer were provided with the epoxy-based transparent adhesive prepared in Preparation Example 2-7 between the third base glass and the third color layer to attach the third base glass and the third color layer to manufacture a third sub-image glass, Finally, image glass was prepared.

Comparative Example 1: Manufacturing of image glass

Image glass was manufactured in the same manner as in Example 1. However, unlike Example 1, the epoxy-based transparent adhesive prepared in Preparation Example 2-1 is provided between the first and second sub-image glasses to attach the first and second sub-image glasses, An image glass was manufactured by attaching the second sub-image glass and the third sub-image glass by providing the epoxy-based transparent adhesive prepared in Preparation Example 2-1 between the second and third sub-image glasses.

Experimental Example 1

For each of the image glasses manufactured through Examples 1 to 11 and Comparative Example 1, the following physical properties were measured and are shown in Table 1 below.

1. Evaluate the sharpness of the projected image

After each of the image glasses manufactured through Examples 1 to 11 and Comparative Example 1 was mounted on the logo projector shown in FIG. 6, the image projected through the logo projector was visually observed to evaluate the sharpness of the image glass. It is shown in Table 1 below. Evaluation of sharpness is based on the image glass manufactured in Example 1, if the sharpness is the same as that of the image glass manufactured in Example 1, ◎, if the sharpness is slightly lower than that of the image glass manufactured in Example 1, but excellent sharpness is shown ○, if the sharpness was significantly lower than that of the image glass manufactured in Example 1, △, and if the sharpness was difficult to clearly determine the image, it was evaluated as ×.

2. Durability evaluation by vibration

After mounting each of the image glasses manufactured through Examples 1 to 11 and Comparative Example 1 on the logo jector shown in FIG. 6, the logo jector was vibrated through a vibration tester (YMRTC, YM-VTS400) . The vibration tester was set to a vibration range of 2.0 mm and a vibration frequency of 50 Hz to perform vibration for 1 hour. To evaluate the durability by vibration, after attaching and detaching the image glass from the logo projector, observe the degree of adhesion between the base glass and the color layer of the detached image glass or between the sub image glasses with the naked eye, and if no separation occurs, ◎, separation According to the degree of ○ (slightly opened), △ (opened), × (completely separated), it was evaluated and shown in Table 1 below.

division	Example 1	Example 2	Example 3	Example 4
definition	◎	○	◎	◎
durability	◎	△	×	△
division	Example 5	Example 6	Example 7	Example 8
definition	○	○	○	◎
durability	○	△	△	○
division	Example 9	Example 10	Example 11	Comparative Example 1
definition	○	◎	○	○
durability	○	○	○	×

As can be seen from Table 1, it was confirmed that the image glass manufactured in Example 1 not only had the best sharpness, but also had excellent durability.

Simple modifications or changes of the present invention can be easily performed by those skilled in the art, and all such modifications or changes can be considered to be included in the scope of the present invention.

Claims (5)

1. An image glass comprising a first sub-image glass, a second sub-image glass disposed on one surface of the first sub-image glass, and a third sub-image glass disposed on one surface of the second sub-image glass,

   A first silicone-based transparent adhesive is provided between the first sub-image glass and the second sub-image glass to adhere the first and second sub-image glass,

   and a second silicone-based transparent adhesive for adhering the second sub-image glass and the third sub-image glass is provided between the second and third sub-image glasses.
2. According to claim 1,

   The first sub-image glass includes a first base glass and a first color layer disposed on one side of the first base glass and projecting a red color,

   A first epoxy-based transparent adhesive for attaching the first base glass and the first color layer is provided between the first base glass and the first color layer,

   The second sub-image glass includes a second base glass and a second color layer disposed on one side of the second base glass and projecting green,

   A second epoxy-based transparent adhesive for attaching the second base glass and the second color layer is provided between the second base glass and the second color layer,

   The third sub-image glass includes a third base glass and a third color layer disposed on one surface of the third base glass and projecting blue,

   Image glass, characterized in that a third epoxy-based transparent adhesive for attaching the third base glass and the third color layer is provided between the third base glass and the third color layer.
3. According to claim 1,

   Image glass, characterized in that the first silicone-based transparent adhesive and the second silicone-based transparent adhesive include a compound represented by the following formula (1) and a compound represented by the following formula (2), respectively.

   [Formula 1]

   

   [Formula 2]

   

   In Formula 1, R ₁ , R ₂ and R ₅ are each independently —H, a C1 to C12 straight-chain alkyl group or a C3 to C12 branched alkyl group, and R ₃ and R ₄ are each independently an alkoxy group. group, and B ₁ , B ₂ , B ₃ and B ₄ are each independently -CH ₂ -, -CH ₂ CH ₂ -, -CH ₂ CH ₂ CH ₂ -, -CH ₂ CH ₂ CH ₂ CH ₂ - , -CH ₂ CH ₂ CH ₂ CH ₂ CH ₂ -, -CH ₂ CH ₂ CH ₂ CH ₂ CH ₂ CH ₂ - or -CH ₂ CH ₂ CH ₂ CH ₂ CH ₂ CH ₂ CH ₂ -, and n is 5 is a rational number that satisfies ~ 50,

   In Formula 2, R ₆ , R ₇ , R ₈ , R ₉ , R ₁₀ and R ₁₁ are each independently -H, a C1 to C12 linear alkyl group or a C3 to C12 branched alkyl group, and B ₅ And B ₆ are each independently -CH ₂ -, -CH ₂ CH ₂ -, -CH ₂ CH ₂ CH ₂ -, -CH ₂ CH ₂ CH ₂ CH ₂ - or -CH ₂ CH ₂ CH _{2 CH 2 CH 2} - is.
4. According to claim 1,

   The first epoxy-based transparent adhesive, the second epoxy-based transparent adhesive, and the third epoxy-based transparent adhesive may each include a bisphenol A-type epoxy resin, a rubber-modified epoxy resin, and a cresol novolak epoxy resin.
5. A first base glass and a first color layer projecting red are manufactured by cutting the first transparent glass, and a second base glass and a second color layer projecting green are manufactured by cutting the second transparent glass. A first step of manufacturing a third base glass and a third color layer for projecting blue by cutting the third transparent glass, respectively;

   A first sub-image glass is manufactured by attaching the first base glass and the first color layer by providing an epoxy-based transparent adhesive between the first base glass and the first color layer, and manufacturing the second base glass and the second color layer. The second sub image glass is manufactured by attaching the second base glass and the second color layer by providing an epoxy-based transparent adhesive therebetween, and by providing an epoxy-based transparent adhesive between the third base glass and the third color layer. a second step of manufacturing third sub-image glass, respectively, by attaching three base glasses and a third color layer; and

   A silicone-based transparent adhesive is provided between the first sub-image glass and the second sub-image glass to attach the first and second sub-image glasses, and the silicon-based transparent adhesive is provided between the second and third sub-image glasses. A method of manufacturing image glass, comprising: a third step of manufacturing the image glass by attaching the second sub-image glass and the third sub-image glass with a transparent adhesive.

Images