KR102630146B1 - Visual information display device in which a display and a power supply unit are integrally provided - Google Patents

Abstract

A visual information display device that provides visual information according to various embodiments of the present invention for realizing the above-described problems is disclosed. The visual information display device includes a transparent display unit including a plurality of LED pixels and a power supply unit for supplying electrical energy to the transparent display unit, wherein the transparent display unit controls lighting of the plurality of LED pixels to provide visual visual information. It may be characterized by providing information.

Description

{VISUAL INFORMATION DISPLAY DEVICE IN WHICH A DISPLAY AND A POWER SUPPLY UNIT ARE INTEGRALLY PROVIDED}

The present invention relates to a visual information display device. More specifically, the lifespan of the device can be improved even in an outdoor environment, and as transparency is secured, visual information display that can naturally become friendly with the surrounding environment without blocking the surrounding scenery. It's about devices.

Various banners made of fabric are installed on roads and city streets for advertising and publicity purposes. In general, a banner is a cloth-shaped screen with various information such as propaganda and slogans written on it so that an unspecified number of people can visually recognize it, and it is installed in a form where both ends are supported by supports such as streetlights or electric poles.

In the case of cloth banners, once they are produced, additional banners must be manufactured to display other advertisements. In other words, a new banner must be produced every time the advertising content is changed, and the process of removing the existing banner and reinstalling a new banner is necessary, which may consume manpower and cost. In addition, since the removed banners cannot be recycled and must be discarded in their entirety, resource efficiency may be low and there is a problem of causing environmental pollution due to waste.

Additionally, these cloth-type banners are less readable at night, lowering information transmission efficiency, and when installed outdoors, they can be easily damaged by the natural environment, damaging the cityscape.

In order to improve the above problems, electronic banners (or electronic signs) using displays have been recently provided. For example, Republic of Korea Patent Publication No. 10-2012-0109281 discloses an advertising system that displays multimedia data or advertising content through an LED display board.

However, in the case of these LED signboards, they are equipped with a PCB (Printed Circuit Board) or FPCB (Flexible Printed Circuit Board) necessary for LED control, and as circuit boards such as PCB or FPCB limit the transparency of the signboard, the LED signboard This could harm the surrounding landscape.

On the other hand, the printed circuit boards for controlling the LEDs can be compressed into the side frame to make the LED display transparent, but in this case, damage to the board or parts may occur due to moisture and temperature in the harsh outdoor environment. As a result, the lifespan of the device is significantly reduced, maintenance costs may continue to arise, and transparency of the frame is still not secured, so it cannot naturally blend into the urban landscape.

Additionally, in the case of electronic banners, significant power consumption costs may occur as power to drive the display is continuously consumed.

Therefore, it is naturally friendly to the surrounding environment without blocking the surrounding landscape, contributing to the improvement of the beautiful cityscape, and is a transparent substrate in a vacuum state that is free from contamination, corrosion of circuit boards such as PCBs and FPCBs, and failure of electronic components in devices installed outdoors. There may be a demand for research and development for transparent displays and transparent electronic banners using them that can reduce after-sales service costs by implementing the structure and reducing operation power consumption through self-generation and energy recycling.

The problem to be solved by the present invention was developed in response to the above-mentioned background technology, and the lifespan of the device can be improved even in an outdoor environment, and as transparency is secured, it can naturally become friendly with the surrounding environment without blocking the surrounding scenery. The purpose is to provide a visual information display device.

The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems not mentioned can be clearly understood by those skilled in the art from the description below.

A visual information display device according to an embodiment of the present invention for solving the above-described problems is disclosed. The visual information display device includes a transparent display unit including a plurality of LED pixels and a power supply unit for supplying electrical energy to the transparent display unit, wherein the transparent display unit controls lighting of the plurality of LED pixels to provide visual visual information. It may be characterized by providing information.

In an alternative embodiment, the transparent display unit includes a glass film, one or more light-emitting modules provided inside the glass film and including at least one LED pixel, transparent electrodes connecting the light-emitting modules, and a bonding material for fixing the light-emitting modules. can do.

In an alternative embodiment, the transparent display unit further includes a control board including one or more input terminals connectable to external devices, and is capable of communicating with an external server through the MQTT (Message Queuing Telemetry Transport) protocol. You can do this.

In an alternative embodiment, each of the one or more light emitting modules may include an individual controller, allowing individual lighting control.

In an alternative embodiment, each of the one or more light emitting modules may be implemented in at least one of a single module type including one LED pixel and a combined module type including a plurality of LED pixels. there is.

In an alternative embodiment, the combined module form may include at least one of a strip form and a wire mesh form.

In an alternative embodiment, the light emitting module may be provided as a film type.

In an alternative embodiment, the power supply unit may include a solar cell that converts light energy into electrical energy.

In an alternative embodiment, the solar cell may include at least one of an organic solar cell including an organic material and a silicon solar cell including a silicon-based material.

In an alternative embodiment, the solar cell may include a perovskite solar cell with a specific crystal structure.

In an alternative embodiment, the solar cell may include a dye-sensitized solar cell (DSSC).

In an alternative embodiment, the transparent display unit and the power supply unit are each provided in shapes corresponding to each other, and the visual information display device includes a bond between glass films provided on one side of each of the transparent display unit and the power supply unit. It can be characterized as being implemented through .

In an alternative embodiment, the visual information display device may be configured to include three glass films, as the transparent display unit is formed based on the glass film constituting one side of the power supply unit.

In an alternative embodiment, the visual information display device may be produced through a method of forming each of the transparent display unit and the dye-sensitized solar cell in response to each of the first and second surfaces of the glass film. there is.

In an alternative embodiment, the method of forming each of the transparent display unit and the dye-sensitized solar cell in response to each of the first and second surfaces of the glass film includes forming an LED module on each of the first and second surfaces. and providing a DSSC module, providing a protective film on a surface corresponding to the first side, performing TiO ₂ coating corresponding to the second side, and sintering the TiO ₂ to form a photo electrode. ), after the photoelectrode is formed, attaching a protector to the surface corresponding to the first surface, adsorbing dye on the surface of the photoelectrode, forming a counter electrode (counter) in response to the photoelectrode. electrode), after bonding of the counter electrode is completed, mounting one or more light emitting modules corresponding to the first surface, and after mounting of the one or more light emitting modules is completed, mounting one or more light emitting modules corresponding to the second surface. It may include performing sealing by injecting an electrolyte layer.

In an alternative embodiment, the protective film may be provided to protect the surface of the transparent display unit and may be removed before forming the photoelectrode.

Other specific details of the invention are included in the detailed description and drawings.

According to various embodiments of the present invention, as the transparency of the visual information display device is secured, it can naturally become friendly with the surrounding environment without blocking the surrounding scenery, thereby contributing to improving the urban landscape.

In addition, since circuit boards such as PCB and FPCB are not provided, the possibility of failure is significantly reduced even in an outdoor environment, thereby improving the stability of the device and minimizing glass management costs.

Additionally, the electricity required for the LED to display information is recovered by the dye-sensitized solar cell on the back where the LED light is projected, and energy consumption is minimized through an energy recycling structure that generates electricity again, thereby securing carbon emissions rights for public facilities. And it can help solve climate problems through ESG management and energy savings.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

1 is an exemplary diagram for comparing a conventional banner related to an embodiment of the present invention and the visual information display device of the present invention.
Figure 2 shows an exemplary cross-sectional view of a visual information display device related to an embodiment of the present invention.
Figure 3 is an example diagram to explain that visual information can be expressed using a plurality of LED pixels related to an embodiment of the present invention.
Figure 4 is an exemplary diagram illustrating a transparent display unit related to an embodiment of the present invention.
Figure 5 is an exemplary diagram for explaining a general addressable LED related to an embodiment of the present invention.
Figure 6 is an exemplary diagram illustrating a current loop interface related to an embodiment of the present invention.
Figure 7 is an exemplary view from the top of a visual information display device related to an embodiment of the present invention.
Figure 8 is an example diagram showing that a light emitting module related to an embodiment of the present invention can be implemented through various types.
Figure 9 is an exemplary diagram illustrating a power supply unit related to an embodiment of the present invention.
Figure 10 is an exemplary diagram for explaining a process of acquiring electrical energy through light related to an embodiment of the present invention.
Figure 11 is an exemplary diagram showing a visual information display device related to an embodiment of the present invention.
Figure 12 is an exemplary diagram showing a visual information display device related to another embodiment of the present invention.

Various embodiments and/or aspects are now disclosed with reference to the drawings. In the following description, for purposes of explanation, numerous specific details are set forth to facilitate a general understanding of one or more aspects. However, it will be appreciated by those skilled in the art that this aspect(s) may be practiced without these specific details. The following description and accompanying drawings set forth in detail certain example aspects of one or more aspects. However, these aspects are illustrative and some of the various methods in the principles of the various aspects may be utilized, and the written description is intended to encompass all such aspects and their equivalents. Specifically, as used herein, “embodiment,” “example,” “aspect,” “example,” etc. are not to be construed as indicating that any aspect or design described is better or advantageous over other aspects or designs. Maybe not.

Hereinafter, regardless of the reference numerals, identical or similar components will be assigned the same reference numbers and duplicate descriptions thereof will be omitted. Additionally, in describing the embodiments disclosed in this specification, if it is determined that detailed descriptions of related known technologies may obscure the gist of the embodiments disclosed in this specification, the detailed descriptions will be omitted. In addition, the attached drawings are only intended to facilitate understanding of the embodiments disclosed in this specification, and the technical idea disclosed in this specification is not limited by the attached drawings.

Although first, second, etc. are used to describe various elements or components, these elements or components are of course not limited by these terms. These terms are merely used to distinguish one device or component from another device or component. Therefore, it goes without saying that the first element or component mentioned below may also be a second element or component within the technical spirit of the present invention.

Unless otherwise defined, all terms (including technical and scientific terms) used in this specification may be used with meanings that can be commonly understood by those skilled in the art to which the present invention pertains. Additionally, terms defined in commonly used dictionaries are not interpreted ideally or excessively unless clearly specifically defined.

Additionally, the term “or” is intended to mean an inclusive “or” and not an exclusive “or.” That is, unless otherwise specified or clear from context, “X utilizes A or B” is intended to mean one of the natural implicit substitutions. That is, either X uses A; X uses B; Or, if X uses both A and B, “X uses A or B” can apply to either of these cases. Additionally, the term “and/or” as used herein should be understood to refer to and include all possible combinations of one or more of the related listed items.

Additionally, the terms “comprise” and/or “comprising” mean that the feature and/or element is present, but exclude the presence or addition of one or more other features, elements and/or groups thereof. It should be understood as not doing so. Additionally, unless otherwise specified or the context is clear to indicate a singular form, the singular terms herein and in the claims should generally be construed to mean “one or more.”

When a component is said to be “connected” or “connected” to another component, it is understood that it may be directly connected to or connected to that other component, but that other components may also exist in between. It should be. On the other hand, when a component is said to be “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between.

The suffixes “module” and “part” for the components used in the following description are given or used interchangeably only for the ease of preparing the specification, and do not have distinct meanings or roles in and of themselves.

When an element or layer is referred to as “on” or “on” another element or layer, it means that it is not only directly on top of, but also intervening with, the other element or layer. Includes all intervening cases. On the other hand, when a component is referred to as “directly on” or “directly on,” it indicates that there is no intervening other component or layer.

Spatially relative terms such as “below”, “beneath”, “lower”, “above”, “upper”, etc. are used as a single term as shown in the drawing. It can be used to easily describe a component or its correlation with other components. Spatially relative terms should be understood as terms that include different directions of the element during use or operation in addition to the direction shown in the drawings.

For example, if a component shown in a drawing is turned over, a component described as “below” or “beneath” another component would be placed “above” the other component. You can. Accordingly, the illustrative term “down” may include both downward and upward directions. Components can also be oriented in different directions, so spatially relative terms can be interpreted according to orientation.

The purpose and effects of the present invention, and technical configurations for achieving them, will become clear by referring to the embodiments described in detail below along with the accompanying drawings. In explaining the present invention, if it is determined that a detailed description of a known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. In addition, the terms described below are terms defined in consideration of the functions in the present invention, and may vary depending on the intention or custom of the user or operator.

However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms. These embodiments are merely provided to ensure that the present invention is complete and to fully inform those skilled in the art of the scope of the disclosure to which the present invention pertains, and that the present invention is only defined by the scope of the claims. . Therefore, the definition should be made based on the contents throughout this specification.

1 is an exemplary diagram for comparing a conventional banner related to an embodiment of the present invention and the visual information display device of the present invention. Figure 2 shows an exemplary cross-sectional view of a visual information display device related to an embodiment of the present invention. Figure 3 is an example diagram to explain that visual information can be expressed using a plurality of LED pixels related to an embodiment of the present invention. Figure 4 is an exemplary diagram illustrating a transparent display unit related to an embodiment of the present invention. Figure 5 is an exemplary diagram for explaining a general addressable LED related to an embodiment of the present invention. Figure 6 is an exemplary diagram illustrating a current loop interface related to an embodiment of the present invention. Figure 7 is an exemplary view from the top of a visual information display device related to an embodiment of the present invention. Figure 8 is an example diagram showing that a light emitting module related to an embodiment of the present invention can be implemented through various types. Figure 9 is an exemplary diagram illustrating a power supply unit related to an embodiment of the present invention. Figure 10 is an exemplary diagram for explaining a process of acquiring electrical energy through light related to an embodiment of the present invention. Figure 11 is an exemplary diagram showing a visual information display device related to an embodiment of the present invention. Figure 12 is an exemplary diagram showing a visual information display device related to another embodiment of the present invention.

The visual information display device 100 of the present invention can be used as an electronic banner. An electronic banner is intended to improve the decrease in efficiency that occurs in the process of using a cloth-type banner, and may refer to a banner that displays images or text in an electronic manner. Electronic banners may be intended to provide various visual information (for example, visual information about advertising, publicity, convenience, or safety accident prevention, etc.) to an unspecified number of people. With these electronic banners, there is no need to remove or reinstall the banner in the process of changing the displayed visual information, and there is no need to dispose of the removed banner, minimizing the consumption of manpower and costs for maintenance. , can prevent environmental pollution. Additionally, electronic banners have the advantage of being highly efficient in conveying information as they are easy to identify even at night.

According to one embodiment, the visual information display device 100 of the present invention may be characterized as having transparency above a certain level.

In the case of a general visual information display device (eg, an electronic banner or electronic billboard, etc.), it may include a PCB or FPCB circuit board for controlling a plurality of LEDs. Generally, circuit boards related to PCBs and FPCBs are provided adjacent to an LED display to control the display of the display. For example, as circuit boards are provided on the back of the display, transparency of the display may be limited. For a specific example, as shown in FIG. 1, looking at the conventional electronic banner 100a supported by the support 10, it cannot have transparency because a circuit board is provided on the back of the display. That is, the surrounding background is completely obscured by the conventional electronic banner 100a. When a plurality of such conventional electronic banners 100a are provided in various locations (e.g., roads, bridges, trails, bus shelters, etc.), the surrounding scenery is obscured by the substrates on the back side, which is a factor that harms the cityscape. It can act as

In addition, in an embodiment, when electronic products containing circuit boards such as PCB or FPCB are used indoors, the stability or sustainability of the device is guaranteed, but when installed outdoors, they are exposed to large temperature changes, rain, snow, and wind. Depending on the influence of various environmental factors, failure of the board or components can easily occur. For example, moisture can cause device failure by contaminating or corroding PCB and FPCB circuit boards.

According to one embodiment of the present invention, the visual information display device 100, as shown in FIG. 1, may be equipped with transparency above a certain level, so that the rear part of the device can be identified by transmitting the background. In other words, the visual information display device 100 can contribute to improving the beautiful cityscape by naturally becoming friendly with the surrounding environment without blocking the surrounding scenery. In other words, the present invention can provide an aesthetic visual information display device that does not obscure the surrounding scenery. For example, it is possible to create a cutting-edge city image suitable for a smart city by creating a mysterious yet luxurious feeling, as if lights are floating in the air.

In a specific embodiment, the visual information display device 100 of the present invention can implement a transparent display by constructing a display without using a PCB and FPCB circuit board required for LED control.

Since the visual information display device 100 does not include a PCB or FPCB circuit board that is vulnerable to temperature changes and moisture, it has the advantage of ensuring improved stability of the device even in an outdoor environment and reducing maintenance costs.

Additionally, the visual information display device 100 of the present invention converts solar energy into electrical energy during the day and uses this to emit a light source (i.e., LED) to display visual information, and at night, it displays visual information using streetlights, car headlights, or By utilizing the light emitted through the light source, it can be collected as electricity and reused to form a virtuous cycle of energy. In other words, since electrical energy can be independently acquired and supplied based on light energy, the power supply cost for displaying the display can be minimized. In other words, the visual information display device 100 has the advantage of saving energy by being able to collect electricity for 24 hours.

Hereinafter, with reference to FIGS. 2 to 11, in order to ensure transparency and stability, a method of implementing the visual information display device 100 without a PCB and FPCB circuit board for LED control and the effects caused thereby will be described in detail. Let's do it.

According to one embodiment, the visual information display device 100 may include a transparent display unit 110 and a power supply unit 120, as shown in FIG. 2. The above-described components are examples, and the visual information display device of the present invention is not limited to the above-described components. That is, depending on the implementation aspect of the embodiments of the present invention, additional components may be included, or at least some of the above-described components may be omitted.

In one embodiment, the visual information display device 100 may be formed by bonding one side of the transparent display unit 110 and one side of the power supply unit 120. For example, the transparent display unit 110 and the power supply unit 120 may be integrated through a bonding process between glass films. Additionally, for example, the visual information display device 100 may be manufactured through a process in which a transparent display unit 110 is created on one side of the power supply unit 120.

The visual information display device 100 may include a transparent display unit 110 including a plurality of pixels. The transparent display unit 110 may include a plurality of pixels and may display visual information by controlling lighting of the plurality of pixels.

For example, as shown in FIG. 3, the transparent display unit 110 lights up at least some of the plurality of pixels to express the current time (e.g., 3:04) in text form to provide visual information. Alternatively, visual information may be provided by expressing the current weather (e.g., rain) in the form of a picture. The visual information included in FIG. 3 is only an example, and various forms of visual representation of various information (e.g., emergency disaster information, forward accident information, advertising information, weather information, local public information, etc.) are provided more than the display device of the present invention. It will be obvious to those skilled in the art that it can be provided through . For example, the transparent display unit 110 can provide a dynamic visual expression, such as text moving in one direction or movement being given to an object, through gradual lighting between a plurality of pixels. For another example, the transparent display unit 110 may display more vivid objects or characters by lighting each pixel in various colors.

According to one embodiment of the present invention, the transparent display unit 110 may include a glass film 111, one or more light emitting modules 112, a transparent electrode 113, and a bonding material 114, as shown in FIG. 4. You can.

The transparent display unit 110 may include a glass film 111 that forms the outer surface of the transparent display unit 110. In one embodiment, the glass film 111 forms the outer surface of the transparent display unit 110 and serves to protect electronic devices (eg, LED pixels and electrodes, etc.) provided therein. Since the transparent display unit 110 can be installed outdoors, the glass film 111 is preferably made of a material having a mechanical strength of a certain level or higher to protect the internal electronic elements from impact. In an embodiment, the glass film 111 may refer to tempered glass or a film plate.

In various embodiments, two glass films 111 of the present invention may be provided to correspond to each of the first and second surfaces of the transparent display unit 110, and the glass films 111 provided on each side may be different from each other. It can be characterized as being provided through materials.

According to one embodiment, the glass film corresponding to the first side (eg, front) exposed to the user may be provided through AR (anti-reflective) tempered glass. Because AR tempered glass has high mechanical strength, it is excellent for protecting internal elements from shocks that may occur from the outside, and because it has low reflective power, it has the advantage of being able to provide high information transmission.

Additionally, the glass film corresponding to the second surface (eg, back) in contact with the power supply unit (or solar cell) may be provided using non-tempered glass, that is, normal glass. In an embodiment, the glass film corresponding to the second surface may be provided through general glass for easy contact with the glass film of the power supply unit 120. For example, if the glass film corresponding to the second side is provided using the same AR tempered glass as the first side, the bonding process with the glass film of the power supply unit 120 may be difficult. For example, during the bonding process between glass films, the sintering temperature rises, and the elements inside the transparent display unit 110 are lifted due to the increased sintering temperature (in this case, the raised sintering temperature may be higher than the manufacturing process temperature of the transparent display unit). There is a risk that the device may come off or become disorganized. Accordingly, the glass film forming the second surface in contact with the power supply unit 120 is preferably made of general glass.

Additionally, the transparent display unit 110 is provided inside the glass film 111 and may include one or more light emitting modules 112 including at least one LED pixel. In one embodiment, the LED pixel may refer to a smart pixel or Micro LED that can be individually controlled.

In an embodiment, each of the one or more light emitting modules may include an individual controller, allowing individual lighting control. That is, the transparent display unit 110 of the present invention may be characterized by not being provided with a separate LED driver for controlling each light-emitting module.

For example, in the case of displays using general LEDs, light is controlled by directly changing the voltage on the LED elements. For example, the light of an LED device can be controlled through voltage related to RGB. In this case, all LEDs on the same line emit the same color. Accordingly, when using general LEDs, a rainbow effect (e.g., an effect in which LEDs display different colors at once) or a wave effect (e.g., a sequential operation effect that causes LEDs to grow sequentially or turn off) Various effects cannot be provided, and as a result, there is a limitation in that the diversity of visual information that can be expressed through the display is limited.

Additionally, a separate LED driver may be required to control multiple LEDs, and this driver is implemented in the form of a PCB. Since this PCB must be provided close to the display (eg, on the side or back), it acts as a factor limiting the transparency of the display.

Accordingly, various effects can be implemented using addressable LEDs (ALED, Addressable LED, or LED pixels) that can be individually controlled through digital signals.

Meanwhile, a plurality of ALEDs may be connected in series to form a loop. In this case, as shown in FIG. 5, each ALED must use a Zener diode (ZD) as a voltage regulator because the voltage must not change in order to avoid interference with data transmission. Additionally, a separate voltage regulator (eg, Zener diode) and a series of capacitors (C) in the line to overcome the ground potential must be provided.

The present invention can provide a current loop interface for implementing ALED (i.e., LED pixel) that can reduce power while completely eliminating voltage regulators such as Zener diodes. In other words, serial data communication between LED pixels is not interrupted, and a current loop interface can be provided that allows a bunch of LED pixels to have flexible energy consumption.

In a more specific embodiment, referring to FIG. 6, the LED pixels are not directly connected, but a current loop is implemented by interposing a MOSFET between two LED pixels, but GND1 < VDD2 - Uth (threshold voltage of MOSFET (Q2)) In this case, the circuits of two LED pixels (ALED(U1) and ALED(U2)) can be combined through a current loop. In this case, the source of the MOSFET (Q1) is connected to GND1 of the first LED pixel (U1), the gate is connected to D0, the drain of the MOSFET (Q1) is connected to the gate of the MOSFET (Q2) through the resistor (RG), A resistor (R2) is connected between the gate and source of the MOSFET (Q1), XDD2 is connected to the source of the MOSFET (Q2), and an LED pixel is connected to the drain of the MOSFET (Q1).

In addition, according to an embodiment, a current loop is implemented by interposing a MOSFET between two LED pixels instead of directly connecting the LED pixels. However, if VDD1 > GND2 + Uth, the two LED pixels (ALED(U1) are connected through the current loop. and ALED (U2)) circuits can be combined. The specific details of the current loop interface implementation method for the addressable LED of the transparent display are specifically discussed in Republic of Korea Patent Publication No. 10-2036603, which is incorporated by reference in its entirety in this application.

When utilizing this current loop interface, Zener diodes and voltage regulators can be completely eliminated because data transfer operates unchanged as long as a sufficiently high operating voltage is supplied.

Therefore, a separate external printed circuit board with built-in Zener diodes and condensers can be removed, and the FPCB connecting the PCB and the transparent display unit 110 can also be removed, ensuring transparency and not blocking the surrounding scenery. Chronic circuit board errors and failures can be minimized. This has the advantage of reducing maintenance costs and enabling semi-permanent use.

In various embodiments, each of the one or more light emitting modules 112 may be implemented in at least one of a single module form including one LED pixel and a combined module form including a plurality of LED pixels. You can.

A single module form may mean that one light emitting module consists of one LED pixel. That is, as shown in FIG. 7, this may mean that one LED pixel forms one light emitting module itself. When one or more light emitting modules are provided in the form of a single module, transparent electrodes 113 may be provided to connect each module 112.

According to an embodiment, when the light emitting module is provided in the form of a single module, an individual controller may be provided for each LED pixel. As an example, an individual controller may be miniaturized and provided near each LED pixel, and each LED pixel may be connected through a transparent transparent electrode 113. Accordingly, transparency can be secured in areas excluding the area provided with LED pixels. According to the embodiment, when the light emitting module is provided in the form of a single module, there is an advantage that transparency is secured to the greatest extent. That is, in order to secure the highest transparency, it is desirable to configure the light emitting module in the form of a single module.

The combined module form may mean that one light emitting module is composed of a plurality of LED pixels. When each light-emitting module consists of a plurality of LED pixels, manufacturing efficiency of the light-emitting module can be improved. For example, when implementing a display by connecting each pixel, such as in the form of a single module, each pixel must be connected through a transparent electrode and each pixel must be placed in each area through a certain arrangement, increasing the difficulty of the process. do. On the other hand, when the light emitting module is provided in the form of a combined module, a plurality of LED pixels are integrated to form one light emitting module, so the transparent electrodes for connecting the light emitting modules are minimized, and the process for aligning the pixels is minimized. It can also become easier.

According to an embodiment, the combined module form may include at least one of a strip form and a wire mesh form. For example, in order for one or more light emitting modules to be provided in a combined module form, a separate frame may be required to form one light emitting module by integrating a plurality of pixels.

More specifically, referring to FIG. 8, each light emitting module may be formed in a strip shape in which a plurality of LED pixels 122a form one row. For a specific example, one light emitting module can be formed by connecting seven LED pixels in a regular strip shape. That is, each of the first light-emitting module 112-1, the second light-emitting module 112-2, and the third light-emitting module 112-3 shown in FIG. 8 is configured by integrating a plurality of LED pixels. You can. In an embodiment, when one or more light emitting modules are provided in the form of a strip, a certain gap may be formed between each strip, and a certain level of transparency may be secured through the gap between the strips and the gap between each pixel.

Additionally, one or more light emitting modules may be configured through a wire mesh type. The wire mesh type may be formed by connecting 224 LED pixels in a mesh form, as shown in FIG. 8. The description of specific values of LED pixels is only an example, and the present invention is not limited thereto.

In various embodiments, the light emitting module 112 may be provided as a film type. That is, the light emitting module 112 may be implemented in the form of an LED film. In the case of the film type, transparency is secured, providing users with an excellent sense of openness. For example, in the case of the film type, it looks like transparent regular glass during the day and does not harm the surrounding scenery, but at night when it gets dark, it can be used as a display to display various visual information.

That is, the light emitting module of the present invention may be provided in at least one of a single module, a combined module, and a film form, depending on the arrangement shape and provision form. In a specific embodiment, the light emitting module may be provided in at least one of a single module form, a strip form, a wire mesh form, and a film form, as needed. All of the above four types can have transparency above a certain level, thereby making it possible to implement a transparent display. For example, high transparency can be secured in the following order: single module form, film form, strip form, and wire mesh form.

In various embodiments, the transparent display unit 110 may include a transparent electrode 113 connecting the light emitting module 112. The transparent electrode 113 may refer to a film in which an electrode is formed by thinly depositing PET, a plastic material, in an indium acid plasma state. This transparent electrode 113 is implemented through deposition of a metal material, but may be provided in a transparent form. In an embodiment, the transparent electrode is characterized by increasing the transparency of the glass and allowing the movement of electricity, and can be formed through various process methods such as the Electron Beam process, Ion Plating process, or Sputtering process.

Additionally, the transparent display unit 110 may include a bonding material 114 that secures the light emitting module 112. In one embodiment, the bonding material 114 may refer to resin or film filled between glass films. If electrical elements can be fixed to each area inside the glass film 111 through the bonding material 114, the inside of the glass film 111 can be maintained in a vacuum state.

In various embodiments, the transparent display unit 110 may further include a control board (not shown) including one or more input terminals that can be connected to external devices. In an embodiment, the control board is provided with a plurality of input terminals, and external devices can be connected through the corresponding input terminals. The transparent display unit 110 can be linked with external devices through the input terminal of the control board, and can display various visual information by controlling the lighting of LED pixels in response to linkage with the external device.

According to one embodiment, the transparent display unit 110 may be equipped to communicate with an external server through the MQTT protocol. The MQTT protocol is a protocol for M2M (Machine To Machine) or IOT (Internet Of Things), and may be a protocol that communicates with minimal power and packet volume. In an embodiment, MQTT may be configured through a Broker, Publisher, and Subscriber structure, rather than a client-server structure like HTTP, TCP, etc. communication. Publisher creates topics, Subscriber can subscribe to published topics, and Broker plays the role of relaying them. Since multiple subscribers can subscribe to a single topic, it is very useful in establishing 1:N communication, and through this, data such as IOT sensors can be easily managed. In other words, MQTT is advantageous for controlling small devices and collecting sensor information, and has the advantage of being easy to implement in the IOT area and delivering data efficiently. Since the transparent display unit 110 of the present invention is equipped to communicate with an external server through the MQTT protocol, it can display visual information through linkage through IOT. That is, the transparent display unit 110 may be implemented through linkage with various devices to provide visual recognition information related to the area where the transparent display unit 110 is located. For example, the transparent display unit 110 may display visual information based on connection through the Internet of Things, such as a temperature sensor device, a humidity sensor device, a speed sensor device, an illumination sensor device, and a wind volume sensor device. The detailed description of the above-described sensor devices is merely an example, and the present invention is not limited thereto.

According to one embodiment, the power supply unit 120 may supply power to the transparent display unit 110. The power supply unit 120 can supply electric energy to the transparent display unit 110, and the transparent display unit 110 can display visual information by emitting light from the light emitting module through the supplied electric energy.

According to one embodiment, the power supply unit 120 may include a solar cell that converts light energy into electrical energy. The power supply unit 120 of the present invention may refer to a solar cell that converts light energy to obtain electrical energy. Electrical energy obtained through solar cells is supplied to the transparent display unit 110, allowing light to be expressed through a plurality of LED pixels.

According to an embodiment, the solar cell may include at least one of an organic solar cell including an organic material and a silicon solar cell including a silicon-based material.

An organic solar cell may be a solar cell made of organic materials. Organic solar cells can be expanded to a large area, ensuring convenience in the manufacturing process, and mass production may be possible. In addition, as it is provided using an organic material, it can be provided flexibly and has the advantage of low manufacturing cost.

In an embodiment, a silicon-based solar cell is implemented using a semiconductor material such as silicon, and may refer to a device that converts light energy into electrical energy using a silicon wafer. Silicon-based solar cells may have somewhat low efficiency, but they have the advantage of easy availability of materials and low manufacturing costs.

Additionally, according to an embodiment, the solar cell may include a perovskite solar cell having a specific crystal structure. Perovskite is a semiconductor material with a hexagonal structure and can refer to gray titanium stone. Perovskite solar cells are realized through a simple manufacturing process and have the advantage of being able to be deposited on a variety of substrates. For example, in the case of silicon-based solar cells, processing is performed at temperatures above 1400 degrees Celsius using expensive equipment, but perovskite can be processed as a liquid solution at a relatively low temperature of about 100 degrees Celsius using inexpensive equipment. . Additionally, perovskites can be deposited on a variety of substrates, including flexible plastics. This has the advantage of being able to be used in a variety of ways, unlike thick and highly rigid silicon wafers.

Additionally, according to an embodiment, the solar cell may include a dye-sensitized solar cell (DSSC). As an example, a dye-sensitized solar cell may be a solar cell that operates through a principle similar to the photosynthetic principle of plants.

Specifically, dye-sensitized solar cells operate on the principle that special dye molecules chemically adsorbed on the surface of metal oxide absorb light to generate electrons, and collect the generated electrons at the electrode to produce electrical energy. In an embodiment, dye-sensitized solar cells can be provided transparently using transparent dyes or in various colors using dyes of various colors, making them highly versatile.

Because these dye-sensitized solar cells have a relatively simple structure, their manufacturing cost is only 20 to 50% of that of silicon-based solar cells. In addition, dye-sensitized solar cells have the advantage that there is almost no decrease in efficiency depending on the angle of incidence of light and that the power generation during the day and night is higher than that of other solar cells. In other words, in the case of dye-sensitized solar cells, there is almost no decrease in efficiency depending on the angle of incidence, so they do not need to be installed in the direction where sunlight is incident, so they have high autonomy and flexibility in where they are installed, and even when there is no sun, It has the advantage of generating electrical energy based on various light energies (for example, car headlights, light emitted from LEDs, or street lamps, etc.).

Since transparency can be guaranteed when using a dye-sensitized solar cell, it is most preferable that the visual information display device 100 of the present invention includes a dye-sensitized solar cell to ensure transparency.

According to one embodiment of the present invention, the power supply unit 120 may be provided through a dye-sensitized solar cell, as shown in FIG. 9.

As shown in FIG. 9, the dye-sensitized solar cell may include a battery glass film 121 and a dye 123 (dyestuff) and an electrolyte 122 (electrolyte) provided between the glass films.

As the solar cell included in the visual information display device 100 of the present invention is implemented through a fuel-sensitive solar cell, as shown in FIG. 10, electrical energy is collected through sunlight during the day, and the vehicle is used at night. By collecting headlight, streetlight, and LED light, electrical energy can be continuously obtained and supplied to the transparent display unit 110 even at night when there is no sun. In particular, light energy emitted from a plurality of LED pixels of the transparent display unit 110 provided in contact with one side of the fuel-sensitive solar cell can be recycled into electrical energy, thereby realizing a virtuous cycle of energy. You can.

In summary, the transparent display unit 110 included in the visual information display device 100 of the present invention is in the form of a single module in which each light-emitting module is implemented with one LED pixel, and a combination in which each light-emitting module is implemented with a plurality of LED pixels. It can be implemented through at least one of a type module form (i.e., strip type and wire mesh type) and a film form. In addition, the power supply unit 120 provided in contact with one surface of the transparent display unit 110 may be provided through at least one of an organic solar cell, a silicon solar cell, a perovskite solar cell, and a dye-sensitized solar cell. .

In a more specific embodiment, the visual information display device 100 of the present invention uses a transparent display unit 110 implemented as a single module and a power supply unit 120 implemented as a dye-sensitized solar cell in order to maximize transparency. It is most desirable to be configured. In this case, since both the transparent display unit 110 and the power supply unit 120 have transparency, they can naturally become friendly with the surrounding environment without blocking the surrounding scenery. For example, it is possible to create a cutting-edge city image suitable for a smart city by creating a mysterious yet luxurious feeling, as if lights are floating in the air. Also, for example, during the day when no visual information is displayed, it appears like transparent ordinary glass and does not harm the surrounding scenery.

According to one embodiment of the present invention, the transparent display unit 110 and the power supply unit 120 may each be provided in shapes corresponding to each other. In this case, the visual information display device 100 can be implemented through bonding between glass films provided on one side of each of the transparent display unit 110 and the power supply unit 120.

That is, the visual information display device 100 of the present invention is, as shown in FIG. 11, one side of the glass film 111 of the transparent display unit 110 and one side of the battery glass film 121 of the power supply unit 120 are bonded. It can be formed according to In this case, after the transparent display unit 110 and the power supply unit 120 are created through each manufacturing process, the visual information display device 100 can be created through the bonding process of each glass film, so the process process is Easy and simple.

According to another embodiment of the present invention, the visual information display device 100 is configured to include three glass films as the transparent display unit 110 is formed based on the glass film constituting one side of the power supply unit 120. It can be characterized.

For example, as shown in FIG. 11, when the transparent display unit 110 and the power supply unit 120 are each manufactured and the visual information display device 100 is produced through a bonding process between the glass films of both components, the manufacturing process is Although it has the advantage of being easy, as a relatively high sintering temperature occurs during the bonding process between glass films, the elements of the transparent display unit 110 may become unstable. Additionally, when the visual information display device 100 is implemented through bonding between glass membranes, the thickness may become thick and the weight may become heavy as four glass membranes are included.

For a specific example, the sintering temperature in the compression sputtering process that forms the electrode in the process of implementing the transparent display unit 110 may be about 120°C. Meanwhile, the temperature generated during the glass film bonding process between the transparent display unit 110 and the power supply unit 120 may be 120°C or higher, and accordingly, the arrangement of the elements of the transparent display unit 110 already manufactured during the bonding process The arrangement may be disturbed or lifted, which deteriorates the quality and durability of the transparent display unit 110. Accordingly, in the present invention, as shown in FIG. 12, a dye-sensitized solar cell can first be manufactured, and then the transparent display unit 110 can be formed on one side of the solar cell.

In one embodiment, since the sintering temperature during the manufacturing process of a dye-sensitized solar cell is 400 to 500°C, the dye-sensitized solar cell is first manufactured, and then a transparent display unit 110 with a relatively low sintering temperature is placed on one side of the dye-sensitized solar cell. It is desirable to form.

Through the above-described process, the dye-sensitized solar cell and the transparent display unit are connected by sharing a single glass film, so a bonding process between the glass films is not required. This can prevent deterioration in durability or quality of the transparent display unit 110.

Additionally, in this case, as shown in FIG. 12, the visual information display device 100 may be comprised of three glass membranes, and thus, the overall weight of the visual information display device 100 may be reduced. Generally, the visual information display device 100 (or electronic banner) is installed at a high place so that multiple users can see it. For example, the visual information display device 100 may be installed on a support such as a streetlight or electric pole. In the case of the visual information display device 100 of the present invention, both the dye-sensitized solar cell and the transparent display unit 110 are transparent and are provided to include only three glass films, so they can be implemented with relatively low weight and thin thickness. This allows it to blend more naturally into the surrounding landscape, and can be more stably coupled to the support through lightening.

In various embodiments, the visual information display device 100 is characterized in that it is produced through a method of forming a transparent display unit 110 and a dye-sensitized solar cell respectively corresponding to the first and second surfaces of the glass film. can do. That is, a dye-sensitized solar cell (DSSC) may be provided as the power supply unit 120 to be in contact with the transparent display unit 110. In this case, as described above, the visual information display device 100 may be provided including three glass membranes. In an embodiment, a dye-sensitized solar cell is a solar cell that has the principle of converting light energy into electrons through dye and generating electricity through redox action, similar to the photosynthetic action of plants. A dye-sensitized solar cell consists of a photo electrode, a counter electrode, and an electrolyte in which dye is adsorbed on a semiconductor oxide.

According to the embodiment, as the dye-sensitized solar cell is provided on the back of the transparent display unit 110, the transparent display unit 110 is affected by the high temperature generated during the electrode sintering process of the dye-sensitized solar cell. It can be. Specifically, sintering the photoelectrode of a dye-sensitized solar cell may require a high temperature of 500°C, and this high temperature of 500°C may be applied to the bonding material of the transparent display unit 110 provided behind the dye-sensitized solar cell. (114) can be affected. The bonding material 114 serves to fix the light emitting module and may refer to resin or film filled between the glass films. If electrical elements can be fixed to each area inside the glass film 111 through the bonding material 114, the inside of the glass film 111 can be maintained in a vacuum state. For example, under the influence of the high temperature of 500°C required for sintering the photoelectrode, the bonding material 114 made of resin may melt and the light emitting module may be separated, or the inside of the glass film may not be maintained in a vacuum state. Accordingly, it is very important to plan the process sequence and process method so as not to be affected by both processes during the production process between the dye-sensitized solar cell and the transparent display unit 110.

In a specific embodiment, the method of forming each of the transparent display unit 110 and the dye-sensitized solar cell in response to each of the first and second sides of the glass film includes an LED module and a DSSC on each of the first and second sides. providing a module, providing a protective film on the surface corresponding to the first side, performing TiO ₂ coating corresponding to the second side, sintering TiO ₂ to form a photoelectrode, the photoelectrode After being formed, attaching a guard to the surface corresponding to the first surface, adsorbing dye on the surface of the photoelectrode, bonding a counter electrode corresponding to the photoelectrode, after bonding of the counter electrode is completed, It may include mounting one or more light emitting modules on one side, and after the mounting of one or more light emitting modules is completed, sealing by injecting an electrolyte layer on the second side.

The order of the steps described above may be changed as needed, and at least one step may be omitted or added. That is, the above-described steps are only an example of the present invention, and the present invention is not limited thereto.

In one embodiment, the method may include providing a light emitting module and a DSSC module on each of the first and second surfaces of the glass film. For example, the glass film may be FTO glass, and an LED module for implementing the transparent display unit 110 and a DSSC module for implementing a dye-sensitized solar cell are implemented on both sides of the glass film. The LED module and DSSC module may refer to electrodes for electrically connecting the transparent display unit and each electronic device of the dye-sensitized solar cell.

In one embodiment, the method may include providing a protective film on a surface corresponding to the first surface. In various embodiments, the protective film is provided to protect the surface of the transparent display unit 110 and may be removed before forming the photoelectrode. The protective film may be used to prevent damage to the LED electrode. When designing an FTO-based double-sided electrode, a protective film must be provided to prevent damage to the LED electrode. This protective film may be deteriorated or adsorbed due to high temperature during the photoelectrode firing process of a dye-sensitized solar cell, so it must be removed before photoelectrode firing.

In one embodiment, the method may include performing TiO ₂ coating corresponding to the second surface. According to examples, TiO ₂ is widely used as a photoelectrode material because it has a high internal surface area, ease of manufacture, and chemical stability. Dye molecules chemically adsorbed on the TiO ₂ surface of the photoelectrode receive light and generate electrons. In embodiments, TiO ₂ may be coated through various processing methods such as doctor blade, spin coating, and screen printing.

In one embodiment, the method may include sintering TiO ₂ to form a photoelectrode. In a specific embodiment, TiO ₂ paste is coated on the second side of the FTO glass using a doctor blade method after tape casting, and then sintered at a temperature of 500°C for a certain period of time (eg, 60 minutes).

In one embodiment, the method may include attaching a guard to a surface corresponding to the first surface after the photoelectrode is formed. In an embodiment, the guard is provided to protect the LED electrode when firing or handling the photoelectrode, and may be made of a material that does not deform at high temperatures. This protector is attached to the first side to protect the LED electrode after the photoelectrode sintering process.

In one embodiment, the method may include adsorbing a dye to the surface of the photoelectrode. For example, after the photoelectrode is formed, cooling may be performed in an electric furnace to a certain temperature (e.g., 80°C), and the cooled substrate may be impregnated with dye for a certain period of time (e.g., 24 hours) to allow the dye to adsorb. It can be.

In one embodiment, the method may include bonding a counter electrode corresponding to the photoelectrode. In an example, Pt paste may be coated on the second side of FTO glass using a doctor blade method after tape casting, and the Pt counter electrode is formed by firing at 500°C and then cooling to room temperature.

In one embodiment, the method may include mounting one or more light emitting modules corresponding to the first surface after the bonding of the counter electrode is completed. That is, after the production of the positive electrodes (i.e., photoelectrode and counter electrode) of the dye-sensitized solar cell is completed, the light emitting module for display is mounted on the circuit of the LED electrode.

In one embodiment, the method may include performing sealing by injecting an electrolyte layer corresponding to the second surface after the mounting of one or more light emitting modules is completed. That is, after the creation of the transparent display unit 110 is completed, electrolyte is injected and sealing is performed to implement a dye-sensitized solar cell.

The present invention can prevent each of the dye-sensitized solar cell and the transparent display unit 110 from being affected by performance degradation during each production process through the above-described process sequence or process. In other words, the visual information display device 100 of the present invention can be implemented by providing the dye-sensitized solar cell and the transparent display unit 110 on the back so as not to be affected during each production process.

Above, embodiments of the present invention have been described with reference to the attached drawings, but those skilled in the art will understand that the present invention can be implemented in other specific forms without changing its technical idea or essential features. You will be able to understand it. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive.

The specific implementations described in the present invention are examples and do not limit the scope of the present invention in any way. For the sake of brevity of the specification, descriptions of conventional electronic components, control systems, software, and other functional aspects of the systems may be omitted. In addition, the connections or connection members of lines between components shown in the drawings exemplify functional connections and/or physical or circuit connections, and in actual devices, various functional connections or physical connections may be replaced or added. Can be represented as connections, or circuit connections. Additionally, if there is no specific mention such as “essential,” “important,” etc., it may not be a necessary component for the application of the present invention.

It is to be understood that the specific order or hierarchy of steps in the processes presented is an example of illustrative approaches. It is to be understood that the specific order or hierarchy of steps in processes may be rearranged within the scope of the present invention, based on design priorities. The appended method claims present elements of the various steps in a sample order but are not meant to be limited to the particular order or hierarchy presented.

The description of the presented embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments without departing from the scope of the invention. Thus, the present invention is not limited to the embodiments presented herein, but is to be construed in the broadest scope consistent with the principles and novel features presented herein.

10: support
100: Visual information display device
100a: Conventional electronic banner
110: Transparent display unit
111: Glass membrane
112: light emitting module
112-1: First light emitting module
112-2: Second light emitting module
112-4: Third light emitting module
112a: LED pixel
113: transparent electrode
114: Bonding material
120: Power supply unit
121: Battery glass membrane
122: electrolyte
123: dye

Claims (5)

In a display device that provides visual information,
A transparent display unit including a plurality of LED pixels; and
a power supply unit that supplies electrical energy to the transparent display unit;
Includes,
The transparent display unit provides visual information by controlling lighting of the plurality of LED pixels,
The transparent display unit,
two glass curtains;
One or more light emitting modules provided between the two glass films and including at least one LED pixel;
A transparent electrode connecting the light emitting module; and
A bonding material that secures the light emitting module; Including,
The two glass membranes are,
It includes a first glass film corresponding to a first surface exposed to the user and a second glass film corresponding to a second surface in contact with the power supply unit,
The first glass film is provided through AR tempered glass, and the second glass film is provided through regular glass,
Each of the one or more light emitting modules includes an individual controller, so that individual lighting control is possible,
The power supply unit,
It is constructed to have transparency through a dye-sensitized solar cell (DSSC), and is characterized by converting light energy into the electrical energy,
The dye-sensitized solar cell,
A battery glass membrane, a photo electrode provided between the battery glass membranes and a transparent dye adsorbed on a semiconductor oxide, a counter electrode connected to the photo electrode, and an electrolyte provided between the battery glass membranes. Containing (electrolyte),
A visual information display device in which a display and a power supply unit are integrated.
According to paragraph 1,
The transparent electrode is,
Characterized in that it is formed in the form of a film by depositing plastic PET in an indium acid plasma state.
A visual information display device in which a display and a power supply unit are integrated.
According to paragraph 1,
Each of the one or more light emitting modules,
A single module type containing one LED pixel; and
A combined module form including a plurality of LED pixels;
Characterized by being implemented through at least one form of,
A visual information display device in which a display and a power supply unit are integrated.
According to paragraph 1,
The transparent display unit and the power supply unit are each provided in shapes corresponding to each other,
The visual information display device,
Characterized in that it is implemented through bonding between a glass film provided on one side of each of the transparent display unit and the power supply unit.
A visual information display device in which a display and a power supply unit are integrated.
According to paragraph 1,
The visual information display device,
As the transparent display unit is formed based on the glass film constituting one side of the power supply unit, it is characterized in that it includes three glass films,
A visual information display device in which a display and a power supply unit are integrated.

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