KR102650786B1 - Blackening prevention and protection device for outdoor environments - Google Patents

Abstract

An apparatus for preventing and protecting a display installed outdoors according to an embodiment of the present invention, comprising: at least one finishing layer bonded to the back and sides of a cover glass layer and supporting the display; A first optical film material used to combine the blackening prevention and protection device for outdoor environments and the display; A sensor layer formed by depositing or printing a sensor on the first optical film material; a second optical film material used to ground the sensor layer and the ceramic ink layer; a ceramic ink layer forming a method of printing ceramic ink on the upper surface of the second optical film material; The top and side covers of the blackening prevention and protection device for the outdoor environment are exposed to the outdoor environment and include a cover glass layer as the uppermost layer.

Description

Blackening prevention and protection device for outdoor environments}

The present invention relates to a blackening prevention and protection device for outdoor environments, and more specifically, to enable normal display without additional UV blocking and temperature control devices for products installed outdoors for a long time under high temperature and direct sunlight, thereby reducing the failure rate and protecting the product. This relates to blackening prevention and protection devices for outdoor environments that increase reliability.

LCD (Liquid Crystal Display) is a flat panel display using liquid crystal as its core material. Liquid crystal is a substance that has both liquid and solid properties. It is called liquid crystal, or liquid crystal for short, as it is a substance that has both the regularity of a solid crystal and the fluidity of a liquid.

LCD is a display that requires external light (light source) to display information. This is because the liquid crystal itself does not emit light. Therefore, a backlight that emits white light from the back of the panel must be used, and a color filter must be used to express various colors.

In LCD, a TFT (Thin Film Transistor) controls the liquid crystal and the light passing through the liquid crystal passes through a color filter to produce color, so there must be a liquid crystal between the two panels. Therefore, when two panels are joined, if they are completely adhered, liquid crystal cannot be inserted in the middle, so very small pillars called spacers are erected between the two panels to secure space. After that, liquid crystal is injected and the LCD panel module is completed by moving to the modularization stage and attaching the necessary devices such as PCB.

The liquid crystal of a typical LCD TV is manufactured to withstand temperatures up to approximately 75 degrees Celsius. This is because it is extremely rare for more heat to be generated in a typical indoor viewing environment. However, if sunlight continues to shine and the heat generated from the LCD panel itself combines, more heat may be generated.

At this time, if the 'phase transition temperature', which is the temperature at which the liquid crystal shape of a general TV changes, exceeds about 85 degrees, the liquid crystal moves slower than in a normal environment, causing an afterimage or a blackening phenomenon that looks like blackening, which drastically reduces the picture quality. drop it

In addition, the strong light from the sun deteriorates the characteristics of the TFT, preventing smooth screen operation. Therefore, outdoor PID must solve this problem by using 'HighTNI (Temperature Nematic Isotropic) liquid crystal', a heat-resistant material that does not undergo phase transition up to about 110 degrees, and the TFT must also be designed with further reinforcement.

The present invention provides a blackening prevention and protection device for outdoor environments that reduces the failure rate and increases product reliability by enabling normal display without additional UV blocking and temperature control devices for products installed outdoors for long periods of time under high temperature and direct sunlight. The purpose is to provide

In addition, the present invention is a configuration in which the size of the ceramic coating pattern of the ceramic ink layer increases or the spacing widens as it moves to the outer and edge areas, so that heat resistance is high and smooth air circulation is achieved for outdoor environments. The purpose is to prevent blackening and provide a protection device.

In addition, the present invention provides a blackening prevention and protection device for outdoor environments that can increase the UV blocking rate by using ceramic glass that has strong thermal shock and high temperature resistance because the thermal expansion coefficient of the top layer of cover glass exposed to ultraviolet rays is close to zero. The purpose is to

In addition, the present invention aims to provide a blackening prevention and protection device for outdoor environments in which a portion of the cover glass layer and the finishing layer are composed of an uneven pattern, and the cover glass layer and the finishing layer adhere to each other with high adhesion. .

In addition, the purpose of the present invention is to provide a blackening prevention and protection device for outdoor environments in which grooves are provided on the side of the cover glass layer to prevent heat deflection and facilitate internal circulation of air.

The objects of the present invention are not limited to the objects mentioned above, and other objects and advantages of the present invention that are not mentioned can be understood by the following description and will be more clearly understood by the examples of the present invention. Additionally, it will be readily apparent that the objects and advantages of the present invention can be realized by the means and combinations thereof indicated in the patent claims.

at least one finish layer bonded to the back and sides of the glass layer and supporting the display; A first optical film material used to combine the blackening prevention and protection device for outdoor environments and the display; A sensor layer formed by depositing or printing a sensor on the first optical film material; a second optical film material used to ground the sensor layer and the ceramic ink layer; a ceramic ink layer forming a method of printing ceramic ink on the upper surface of the second optical film material; and a cover glass layer, which is the uppermost layer and is exposed to the outdoor environment as a top and side cover of the blackening prevention and protection device for the outdoor environment.

Additionally, a method of manufacturing a blackening prevention and protection device for an outdoor environment to achieve this purpose includes forming a ceramic ink layer on the back of the cover glass layer; forming a second optical film layer behind the ceramic ink layer; forming a sensor layer on the backside of the second optical film layer; forming a first optical film layer on the backside of the sensor layer; forming the display on a backside of the first optical film layer; and forming a finishing layer on the back and sides of the display and the cover glass layer.

The means for solving the problem of the present invention are not limited to the above-mentioned solution means, and the solution methods not mentioned will be clearly understood by those skilled in the art from this specification and the attached drawings. You will be able to.

According to the present invention as described above, there is an advantage in that it is possible to reduce the failure rate and increase the reliability of the product by enabling normal display without additional UV blocking and temperature control devices for products that are installed outdoors for a long time under high temperature and direct sunlight.

In addition, the present invention has the advantage that the ceramic coating pattern of the ceramic ink layer increases in size or widens the gap as it moves toward the outer and edge areas, which has the advantage of high heat resistance and smooth air circulation.

In addition, according to the present invention, the UV blocking rate can be increased by using ceramic glass that has strong thermal shock and high temperature resistance because the thermal expansion coefficient of the top layer cover glass exposed to ultraviolet rays is close to zero.

In addition, the present invention has the advantage of high adhesion when adhering the cover glass layer and the finishing layer because a portion of the cover glass layer and the finishing layer are composed of an uneven pattern.

In addition, the present invention has a configuration in which grooves are provided on the side of the cover glass layer, which has the advantage of preventing heat deflection and allowing smooth internal circulation of air.

Figure 1 is a diagram for explaining a conventional display device.
Figure 2 is a diagram for explaining a blackening prevention and protection device for outdoor environments according to an embodiment of the present application.
Figure 3 is a diagram for explaining a blackening prevention and protection device for outdoor environments according to another embodiment of the present application.
Figure 4 is a diagram for explaining a blackening prevention and protection device for outdoor environments according to another embodiment of the present application.
Figure 5 is a diagram for explaining a ceramic pattern according to another embodiment of the present application.
Figure 6 is a diagram for explaining a groove formed in a cover glass layer according to another embodiment of the present application.
Figure 7 is a flow chart to explain the manufacturing process of the blackening prevention and protection device for outdoor environments according to the present invention.
Figure 8 is an exemplary diagram for explaining a display device combined with a blackening prevention and protection device for an outdoor environment according to an embodiment of the present invention.

The above-described objects, features and advantages of the present application will become more apparent through the following detailed description in conjunction with the accompanying drawings. However, since the present application can make various changes and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail below.

Like reference numerals throughout the specification in principle refer to the same elements. In addition, components with the same function within the scope of the same idea shown in the drawings of each embodiment will be described using the same reference numerals, and overlapping descriptions thereof will be omitted.

If it is determined that a detailed description of a known function or configuration related to the present application may unnecessarily obscure the gist of the present application, the detailed description will be omitted. In addition, numbers (eg, first, second, etc.) used in the description of this specification are merely identifiers to distinguish one component from another component.

In addition, the suffixes “module” and “part” for components used in the following examples are given or used interchangeably only considering the ease of writing the specification, and do not have distinct meanings or roles in themselves.

In the following examples, singular terms include plural terms unless the context clearly dictates otherwise.

In the following embodiments, terms such as include or have mean that the features or components described in the specification exist, and do not exclude in advance the possibility of adding one or more other features or components.

In the drawings, the sizes of components may be exaggerated or reduced for convenience of explanation. For example, the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of explanation, and the present invention is not necessarily limited to what is shown.

If an embodiment can be implemented differently, the order of specific processes may be performed differently from the order described. For example, two processes described in succession may be performed substantially simultaneously, or may proceed in an order opposite to that in which they are described.

In the following embodiments, when components are connected, this includes not only the case where the components are directly connected, but also the case where the components are indirectly connected by intervening between the components.

For example, in this specification, when components, etc. are said to be electrically connected, this includes not only cases where the components are directly electrically connected, but also cases where components, etc. are interposed and indirectly electrically connected.

Figure 1 is a diagram for explaining a conventional display device.

Referring to Figure 1, it includes a TFT LCD display and a touch panel. The TFT LCD includes a cover glass layer, a silk print layer, an SCA layer, a sensor layer, and an SCA for the LCD panel, and the touch panel includes a PDL layer, an SCA layer for the PDL, an LCD glass layer, an SCA layer for the PDL, and a PDL layer. .

As mentioned above, the SCA layer may be deformed when exposed to direct sunlight for a long period of time, which may cause abnormalities to occur on the LCD screen.

Relatedly, if there is only an LCD display without a touch panel at the top layer, the SCA layer of the LCD is destroyed, causing a change in the adhesion of the POL (polarizer) and preventing a normal display. Additionally, when exposed to ultraviolet rays for a long time, organic substances within the TFT-LCD are deformed and blackening occurs.

Figures 2 to 4 are diagrams for explaining a blackening prevention and protection device for outdoor environments according to an embodiment of the application.

Referring to FIG. 2, the blackening prevention and protection device 100 for an outdoor environment includes a finishing layer 110, a first optical film layer 130, a sensor layer 140, a second optical film layer 150, It includes a ceramic ink layer 160 and a cover glass layer 170.

An anti-blackening and protection device 100 for an outdoor environment includes a finishing layer 110. Finish layer 100 may be bonded to the back and sides of cover glass layer 170 . Additionally, the finishing layer 110 may support the display and may be composed of at least one layer. Finish layer 100 may be comprised of materials such as natural rubber, synthetic rubber, carbon nanotubes, elastomers, polyurethane, silicone, and nylon. The blackening prevention and protection device 100 for outdoor environments can protect the display 120 and the cover glass layer 170 from external shock through the finishing layer 110. In addition, through the finishing layer 110, a space can be provided at the rear of the display 120, which allows heat generated from the display 120 to be easily dissipated, thereby preventing blackening and heat resistance of the protection device 100 for outdoor environments. can be circulated smoothly to the outside.

The cover glass layer 170 and the finish layer 110 may include uneven portions 105 . The uneven portion 105 may be formed on the surface where the cover glass layer 170 and the finishing layer 110 are in contact and on the surface to which the cover glass layer 170 and the finishing layer 110 are glued. may include irregularities of contrasting shapes. For example, the uneven portion 105 may have a concave-convex or embossed shape, and the irregularities may be square, triangular, or star-shaped.

As another example, the finishing layer 110 may include at least one perforation 113. The blackening prevention and protection device 100 for an outdoor environment can assist in smoother circulation of internal and external heat through the perforation part 113.

The blackening prevention and protection device 100 for outdoor environments is coupled to the upper side of the display device through the first optical film layer 130 to enable normal display without additional UV blocking and temperature control devices, thereby reducing the failure rate and reducing the product failure rate. can increase reliability.

The first optical film layer 130 is used to combine the blackening prevention and protection device 100 and the display device 200 for outdoor environments. The present invention processes the air gap portion by closely adhering the blackening prevention and protection device 100 and the display device 200 for outdoor environments using the first optical film layer 130 to improve light transmittance, luminance, and C/R value. By improving , power consumption can be lowered.

The first optical film layer 130 may be composed of a film with strong heat resistance, such as polyimide film, polytetrafluoroethylene film (PTFE film), polyetherimide film (PEI film), and polyethylene naphthalate film. You can. Films made of such materials enable stable operation without failure due to high temperatures and chemicals.

In addition, the first optical film layer 130 may be an optical film without an adhesive component, which facilitates the adhesion of components while maintaining transparency and optical properties, and maintains high adhesion. Additionally, the first optical film layer 130 may be a radiation blocking film, which can minimize component failure due to the radiation blocking function.

In addition, by using the first optical film layer 130, when a failure occurs inside the blackening prevention and protection device 100 for outdoor environments, there is no adhesive, so the internal parts can be easily separated, reducing repair costs. This has the effect of reducing parts costs.

The sensor layer 140 may be formed by depositing or printing a sensor on glass or film. If the sensor layer 140 is formed by depositing or printing a sensor on glass, the sensor layer 140 may be formed of sensor glass, and if the sensor layer 140 is formed by depositing or printing a sensor on a film, the sensor layer 140 may be formed of sensor glass. (140) may be formed of a sensor film.

A second optical film layer 150 is used to join the ceramic ink layer 160 and the cover glass layer 170. The second optical film layer 150 may be composed of a film with strong heat resistance, such as polyimide film, polytetrafluoroethylene film (PTFE film), polyetherimide film (PEI film), and polyethylene naphthalate film. You can. Films made of such materials enable stable operation without failure due to high temperatures and chemicals.

Additionally, the second optical film layer 150 may be an optical film without an adhesive component, which facilitates the adhesion of components while maintaining transparency and optical properties, and maintains high adhesion. Additionally, the second optical film layer 150 may be a radiation blocking film, which can minimize component failure due to the radiation blocking function. In addition, by using the second optical film layer 150, when a failure occurs inside the blackening prevention and protection device 100 for outdoor environments, there is no adhesive, so the internal parts can be easily separated, reducing repair costs, This has the effect of reducing parts costs.

The ceramic ink layer 160 is formed by printing ceramic ink on the upper surface of the second optical film layer 150. At this time, the ceramic ink layer 160 may be printed on the upper surface of the second optical film layer 150 by applying a silk screen printing method or a pad printing method.

The silkscreen printing method involves placing a silkscreen plate with an engraved pattern on a ceramic surface, pouring ink for ceramic surface printing on the silkscreen plate, and printing by pushing it with a roller or blade.

The pad printing method is a method of pouring ink for ceramic surface printing on a copper plate with an engraved pattern, pressing the silicon pad to transfer the pattern to the silicon pad, and then printing by pressing the silicon pad with the pattern transferred onto the ceramic surface.

The ceramic ink layer 160 is printed with ceramic on the upper surface of the second optical film layer 150, and has high temperature oxidation resistance, heat resistance, non-flammability, far infrared radiation, high hardness, wear resistance, contamination resistance, moisture resistance, water repellency, and water resistance. It has excellent effects in chemical resistance, acid resistance, insulation, antibacterial and deodorizing properties.

At this time, the step is to print ceramic ink on the upper surface of the second optical film layer 150 and then dry it at room temperature (20 to 25°C) for 5 to 20 minutes. If the drying time is less than 5 minutes, the printed ink There is a risk that the ink may not dry completely, and if it exceeds 20 minutes, the degree of drying of the ink may no longer improve compared to the drying time, which may reduce production efficiency.

Afterwards, the ink printed on the ceramic surface is cured in a curing furnace at 250~320℃ for 10~30 minutes. The curing furnace can use various means for curing ink, and not only a normal curing furnace but also an oven can be used.

On the other hand, if the curing temperature and time of the ink are outside the above conditions, there is a risk that the curing degree of the ink is insufficient or the curing degree of the ink is no longer improved compared to the curing time, thereby reducing production efficiency.

The cover glass layer 170 is the top layer exposed to the outdoor environment as a cover of the blackening prevention and protection device 100 for the outdoor environment. This cover glass layer 170 can be implemented as ceramic glass with a thermal expansion coefficient close to 0 and thus highly resistant to thermal shock and high temperatures.

Figure 5 is a diagram for explaining a ceramic pattern according to another embodiment of the present application.

Figure 5 is a top view of ceramic ink layer 160. The ceramic ink layer 160 is formed by printing ceramic ink on the upper surface of the second optical film layer 150. At this time, the ceramic ink layer 160 may be printed on the upper surface of the second optical film layer 150 by applying a silk screen printing method or a pad printing method.

The silkscreen printing method involves placing a silkscreen plate with an engraved pattern on a ceramic surface, pouring ink for ceramic surface printing on the silkscreen plate, and printing by pushing it with a roller or blade.

The pad printing method is a method of pouring ink for ceramic surface printing on a copper plate with an engraved pattern, pressing the silicon pad to transfer the pattern to the silicon pad, and then printing by pressing the silicon pad with the pattern transferred onto the ceramic surface.

The ceramic ink layer 160 may be composed of a ceramic pattern 165 formed by printing ink with ceramic patterns of different sizes. The ceramic patterns 165 are maintained at regular intervals, but the size of the ceramic patterns 165 may increase toward the edge. For example, the ceramic pattern 165 may be formed into a square, triangle, circle, star, linear, non-linear, or irregular shape. The blackening prevention and protection device 100 for outdoor environments has the effect of allowing internal and external heat to circulate smoothly through the ceramic pattern 165.

At this time, ceramic ink is printed on the upper surface of the second optical film layer 150 and then dried at room temperature (20-25°C) for 5-20 minutes. If the drying time is less than 5 minutes, the printed ink is completely dried. There is a risk that it may not dry, and if it exceeds 20 minutes, the degree of drying of the ink may no longer improve compared to the drying time, which may reduce production efficiency.

Afterwards, the ink printed on the ceramic surface is cured in a curing furnace at 250~320℃ for 10~30 minutes. The curing furnace can use various means for curing ink, and not only a normal curing furnace but also an oven can be used.

Figure 6 is a diagram for explaining a groove formed in a cover glass layer according to another embodiment of the present application.

Figure 6 is a cross-sectional view of the blackening prevention and protection device 100 for outdoor environments. The cover glass layer 170 is the top layer exposed to the outdoor environment as a cover of the blackening prevention and protection device 100 for the outdoor environment. This cover glass layer 170 can be implemented as ceramic glass with a thermal expansion coefficient close to 0 and thus highly resistant to thermal shock and high temperatures. For example, cover glass layer 170 may include grooves 175 . The groove 175 may be formed on the inner back or slope of the cover glass layer 170, and may be formed as a groove 175 whose back or slope is symmetrical. Through the groove 175, the cover glass layer 170, the ceramic ink layer 160, the second optical film layer 150, the sensor layer 140, the first optical film layer 130, and the display 120. are spaced at regular intervals so that the heat inside can circulate smoothly. In addition, the internal heat circulates and is not deflected to one side, thereby assisting in lowering the internal temperature.

Figure 7 is a flowchart for explaining the manufacturing process of the blackening prevention and protection device for outdoor environments according to the present invention. Figure 8 is an exemplary diagram for explaining a display device combined with a blackening prevention and protection device for an outdoor environment according to an embodiment of the present invention.

Referring to FIG. 7, a ceramic ink layer is formed on the back of the cover glass layer (S410). The cover glass layer is the top layer exposed to the outdoor environment as a cover for the blackening prevention and protection device for the outdoor environment. This cover glass layer can be implemented with ceramic glass that has a thermal expansion coefficient close to zero and is therefore highly resistant to thermal shock and high temperatures. For example, the cover glass layer may include grooves. The groove may be formed on the inner back surface or oblique surface of the cover glass layer, and may be configured as a groove in which the back surface or oblique surface is symmetrical. Through the grooves, the cover glass layer, ceramic ink layer, second optical film layer, sensor layer, first optical film layer, and display are spaced apart at regular intervals, allowing internal heat to circulate smoothly. In addition, the internal heat circulates and is not deflected to one side, thereby assisting in lowering the internal temperature.

A second optical film layer is formed on the back of the ceramic ink layer (S420). A second optical film layer is used to join the ceramic ink layer and the cover glass layer.

A second optical film layer is used to join the ceramic ink layer and the cover glass layer. The second optical film layer may be composed of a film with strong heat resistance, such as polyimide film, polytetrafluoroethylene film (PTFE film), polyetherimide film (PEI film), and polyethylene naphthalate film. Films made of such materials enable stable operation without failure due to high temperatures and chemicals.

Additionally, the second optical film layer may be an optical film without an adhesive component, which facilitates the adhesion of components while maintaining transparency and optical properties, and maintains high adhesion. Additionally, the second optical film layer may be a radiation blocking film, thereby minimizing component failure due to the radiation blocking function. In addition, by using the second optical film layer, there is no adhesive when a failure occurs inside the blackening prevention and protection device for outdoor environments, so the internal parts can be easily separated, reducing repair costs and parts costs. There is a possible effect.

The ceramic ink layer is formed by printing ceramic ink on the upper surface of the second optical film layer. At this time, the ceramic ink layer may be printed on the upper surface of the second optical film layer by applying a silkscreen printing method or a pad printing method.

The silkscreen printing method involves placing a silkscreen plate with an engraved pattern on a ceramic surface, pouring ink for ceramic surface printing on the silkscreen plate, and printing by pushing it with a roller or blade.

The pad printing method is a method of pouring ink for ceramic surface printing on a copper plate with an engraved pattern, pressing the silicon pad to transfer the pattern to the silicon pad, and then printing by pressing the silicon pad with the pattern transferred onto the ceramic surface.

The ceramic ink layer may consist of a ceramic pattern formed by printing ink into a ceramic pattern of different sizes. Ceramic patterns are kept at regular intervals, but the size of the ceramic pattern may increase toward the edge. For example, ceramic patterns can be formed into squares, triangles, circles, stars, linear, non-linear, and irregular shapes. Blackening prevention and protection devices for outdoor environments have the effect of allowing internal and external heat to circulate smoothly through ceramic patterns.

At this time, this is the step of printing ceramic ink on the upper surface of the second optical film layer and drying it at room temperature (20-25°C) for 5-20 minutes. If the drying time is less than 5 minutes, the printed ink is completely dried. There is a concern that this may not be done, and if it exceeds 20 minutes, there is a concern that the drying degree of the ink will no longer improve compared to the drying time, which may reduce production efficiency.

Afterwards, the ink printed on the ceramic surface is cured in a curing furnace at 250~320℃ for 10~30 minutes. The curing furnace can use various means for curing ink, and not only a normal curing furnace but also an oven can be used.

On the other hand, if the curing temperature and time of the ink are outside the above conditions, there is a risk that the curing degree of the ink is insufficient or the curing degree of the ink is no longer improved compared to the curing time, thereby reducing production efficiency.

A sensor layer is formed on the back of the second optical film layer (S430). The sensor layer may be formed by depositing or printing sensors on glass or film. When a sensor layer is formed by depositing or printing a sensor on glass, the sensor layer can be formed of sensor glass, and when a sensor layer is formed by depositing or printing a sensor on a film, the sensor layer can be formed by a sensor film. .

A first optical film layer is formed on the back of the sensor layer (S440), and a display is formed on the back of the first optical film layer (S450). The present invention improves light transmittance, luminance, and C/R value by processing the air gap portion by closely adhering the display device and blackening prevention and protection device for outdoor environments using the first optical film layer, thereby lowering power consumption. You can.

The first optical film layer may be composed of a film with strong heat resistance, such as polyimide film, polytetrafluoroethylene film (PTFE film), polyetherimide film (PEI film), or polyethylene naphthalate film. Films made of such materials enable stable operation without failure due to high temperatures and chemicals.

Additionally, the first optical film layer may be an optical film without an adhesive component, which facilitates the adhesion of components while maintaining transparency and optical properties, and maintains high adhesion. Additionally, the first optical film layer may be a radiation blocking film, thereby minimizing component failure due to the radiation blocking function. In addition, by using the first optical film layer, when a breakdown occurs inside the blackening prevention and protection device for outdoor environments, there is no adhesive, so the internal parts can be easily separated, reducing repair costs and parts costs. There is an effect.

A finishing layer is formed on the back and sides of the display and cover glass layer (S460). Additionally, the finishing layer may support the display and may be composed of at least one layer. The finishing layer can be composed of materials such as natural rubber, synthetic rubber, carbon nanotubes, elastomers, polyurethane, silicone, and nylon. Blackening prevention and protection devices for outdoor environments can protect the display and cover glass layers from external impacts through the finishing layer. In addition, through the finishing layer, space can be provided at the rear of the display, which can easily dissipate heat generated from the display and smoothly circulate the heat of the blackening prevention and protection device for outdoor environments to the outside.

The cover glass layer and the finish layer may include uneven portions. The irregularities may be formed on the surface where the cover glass layer and the finishing layer are in contact and on the surface to which they are bonded, and the cover glass layer and the finishing layer may include irregularities in a form that contrasts with each other on a portion of the surface where the cover glass layer and the finishing layer are bonded. For example, the irregularities may be concave-convex or embossed, and the irregularities may be square, triangular, or star-shaped. As another example, the finishing layer may include at least one perforation. Blackening prevention and protection devices for outdoor environments assist in smoother circulation of internal and external heat through perforations.

After the manufacturing of the blackening prevention and protection device for an outdoor environment is completed through the above process, the blackening prevention and protection device for an outdoor environment is coupled to the display device as shown in FIG. 8 through the first optical film layer. Therefore, the cover glass layer and the finishing layer serve as a protective layer for the display device.

Below, with reference to [Table 1], the ultraviolet ray blocking rate of the ceramic ink layer 160 used in the manufacture of the blackening prevention and protection device for outdoor environments will be described. To test the ultraviolet blocking rate of the ceramic ink layer used in the manufacture of blackening prevention and protection devices for outdoor environments, the lamp type uses UVA-340nm, the irradiation intensity is 0.63w/m2/nm@340nm, and the ultraviolet radiation at 60℃ The test was conducted for 4 hours and then left at 50°C for 4 hours, taking a total of 8 hours.

After repeating the above process for 96 hours, 250 hours, 500 hours, 750 hours, and 1000 hours, the product was left at room temperature for 2 hours to check for any defects such as fading, discoloration, patterns, or ink separation, and to test the adhesion.

[Table 1]

As described above, the present invention uses Ceramic Glass, which has a thermal expansion coefficient close to 0 and is highly resistant to thermal shock and high temperatures, as the top cover glass layer exposed to ultraviolet rays (UV), and also uses ceramic ink that is effective in blocking ultraviolet rays (UV). use.

The features, structures, effects, etc. described in the embodiments above are included in at least one embodiment of the present invention and are not necessarily limited to only one embodiment. Furthermore, the features, structures, effects, etc. illustrated in each embodiment can be combined or modified and implemented in other embodiments by a person with ordinary knowledge in the field to which the embodiments belong. Therefore, contents related to such combinations and modifications should be construed as being included in the scope of the present invention.

In addition, although the above description focuses on the embodiment, this is only an example and does not limit the present invention, and those skilled in the art will be able to understand the above without departing from the essential characteristics of the present embodiment. You will see that various modifications and applications not illustrated are possible. In other words, each component specifically shown in the embodiment can be modified and implemented. And these variations and differences in application should be construed as being included in the scope of the present invention as defined in the appended claims.

100: Blackening prevention and protection device for outdoor environments
110: Finishing layer
113: perforation part
115: uneven portion
120: display
130: first optical film layer
140: Sensor layer
150: second optical film layer
160: Ceramic ink layer
170: Cover glass layer
175: Home

Claims (5)

In the device for preventing and protecting displays installed outdoors,
at least one finish layer bonded to the back and sides of the cover glass layer and supporting the display;
A first optical film material used to combine the blackening prevention and protection device for outdoor environments and the display;
A sensor layer formed by depositing or printing a sensor on the first optical film material;
a second optical film material used to ground the sensor layer and the ceramic ink layer;
the ceramic ink layer forming a method of printing ceramic ink on the upper surface of the second optical film material; and
A blackening prevention and protection device for an outdoor environment comprising a cover glass layer, which is the uppermost layer and is exposed to the outdoor environment as an upper and side cover of the blackening prevention and protection device for an outdoor environment.
According to claim 1,
The cover glass layer and the finishing layer are,
On the surface where the cover glass layer and the finish layer come into contact
A blackening prevention and protection device for an outdoor environment comprising: an uneven portion having a contrasting shape between the cover glass layer and the finishing layer.
According to claim 1,
The finishing layer is,
A blackening prevention and protection device for an outdoor environment comprising at least one perforation.
According to claim 1,
The ceramic ink layer is,
Anti-blackening and protection device for outdoor environments formed by printing ink into ceramic patterns of different sizes.
In a method of manufacturing a device for preventing and protecting a display installed outdoors from blackening,
forming a ceramic ink layer behind the cover glass layer;
forming a second optical film layer behind the ceramic ink layer;
forming a sensor layer on the backside of the second optical film layer;
forming a first optical film layer on the backside of the sensor layer;
forming the display on a backside of the first optical film layer; and
A method of manufacturing a blackening prevention and protection device for an outdoor environment comprising: forming a finishing layer on the rear and side surfaces of the display and the cover glass layer.