JP2006323323A - Functional glass - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a functional glass that facilitates arrangement of a light emitting element on a single glass plate and that has ample light quantity, even when it is used for various purposes, such as a signboard, decorative lighting, and lighting. <P>SOLUTION: The functional glass comprises at least one glass sheet having a conductive film, and a light-emitting element. The light-emitting element can be disposed on the single glass sheet by forming a setting hole or the thin part of the glass plate on the surface of at least one glass sheet having the conductive film, and embedding the light-emitting element in the setting portion. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention provides functional glass that can be used as a display device or a lighting device by arranging light emitting elements such as LEDs on the glass.

Conventionally, a technique for displaying on the surface of glass has been widely used. Typically, a non-transparent member is placed on the back of the glass, and any character or image is displayed on the glass surface by transmitting light to the glass surface with a projector or other light projecting equipment. Things are known.

However, when using the above-described conventional technology, in addition to the glass having a non-transparent member disposed on the back surface, it is necessary to dispose light projector equipment such as a projector. There was a problem that the space utilization efficiency was bad.

In order to solve the above-mentioned problem, Japanese Patent Application Laid-Open No. 2003-034560 “Laminated glass and a transmission / reception device using the same” includes a light emitting element such as an LED in a notch provided in an intermediate film constituting the laminated glass. Is disclosed, and a conductive film is formed as a conductive wire connected to the light emitting element inside the laminated glass to cause the light emitting element to emit light and display. When using the technique described in JP-A-2003-034560, since the light emitting element is disposed in the interlayer film of the laminated glass, it is not necessary to separately arrange the light projecting equipment on the glass surface, There is no need to waste space. (See Patent Document 1)
JP 2003-034560 A

Problems to be solved by the invention

However, in the conventional example, a light emitting element such as an LED is arranged in a notch provided in an intermediate film constituting the laminated glass, and the conductive film for causing the light emitting element to emit light is a glass plate constituting the laminated glass. Therefore, the light emitted from the light emitting element such as an LED needs to pass through at least one glass plate in the entire thickness direction, and the light emitted from the LED or the like when viewed from the display surface side. There have been problems such as a decrease in the amount of light of the element itself and a display with unclear color.

In addition, the conventional example requires a configuration of laminated glass having at least two glass plates and an intermediate film in order to arrange the light emitting elements, and the light emitting elements cannot be arranged on a single glass plate. Had.

Means for solving the problem

The present invention is a functional glass including at least one glass having a conductive film and a light emitting element.

The surface of at least one glass having the conductive film is provided with an installation hole or a thin portion of a glass plate to form an installation part, and a light emitting element is embedded in the installation part, so that a laminated glass is formed. A plurality of glass plates and an intermediate film are not required, and a light-emitting element can be arranged on a single glass plate. In addition, when compared with a conventional technique in which a light emitting element is arranged in an interlayer film of laminated glass, the amount of light increases when viewed from the display surface side, the color becomes clear, and the visibility is improved.

In addition, the functional glass of the present invention can be used for a glass composed of a plurality of glass plates such as a multilayer glass or a laminated glass. In this case, the multilayer glass or the laminated glass is constituted. At least one of the two or more glass plates to be formed can be constituted by a glass plate in which a light emitting element is embedded in an installation portion formed on the surface of the glass having a conductive film. It is obvious to those skilled in the art that a structure in which a plurality of glass plates having the conductive film and an installation portion are formed and light emitting elements are embedded in the installation portion may be arranged.

Moreover, when using the functional glass of this invention as a double-glazed glass type | mold, it is possible to comprise from two or more glass plates, an air layer, and a spacer. In this case, the light emitting element can be arranged on the spacer so that the light emitting surface faces the air layer.

When the functional glass of the present invention is composed of a plurality of glass plates such as a multi-layer glass mold, a conductive film can be formed on the opposing surfaces of the glass plate. It is possible to use an opposing glass plate as an electrode by electrically connecting to the light emitting element.

When the conductive film is partially formed, an electric circuit pattern can be formed to serve also as a power supply line to the light emitting element. In this case, since it is not necessary to separately arrange a power supply line in the light emitting element, the structure of the functional glass of the present invention can be simplified.

In addition, when the functional glass of the present invention is used for glass composed of a plurality of glass plates such as multilayer glass and laminated glass, the glass having the conductive film is composed of two or more, and conductive By arranging the surfaces on which the films are formed to face each other, two glass plates can be used as electrodes, and the structure of the functional glass of the present invention can be simplified.

In addition, the conductive film can be partially formed to form characters, designs, and the like, so that the functional glass has a decorative property.

When the conductive film is partially formed as described above, the surface of the conductive film can be formed using a method such as cutting or etching.

In addition, the conductive film can have not only a decorative function and a function as an electrode, but also a heat generation function. In particular, by using the functional glass of the present invention for a double-layer glass, the interior can be more effectively used. It is possible to adjust the air environment.

In the functional glass of the present invention, a power source that supplies power to a light emitting element such as an LED can operate efficiently by connecting a self-contained electric circuit such as a solar cell or a storage battery.

FIG. 1 is a side sectional view showing a first embodiment of the functional glass of the present invention, FIG. 2 is a front view showing the functional glass described in FIG. 1, and FIG. FIG. 4 is a side sectional view showing a second embodiment of the functional glass of the present invention, FIG. 4 is a side sectional view showing a third embodiment of the functional glass of the present invention, and FIG. It is side surface sectional drawing showing the 3rd Example of this functional glass.

In the first embodiment of the present invention shown in FIGS. 1 and 2, an installation portion 7 is formed on one side of a glass plate 2 having a conductive film 4, and a light emitting element 3 composed of an LED is formed on the installation portion 7. It is the functional glass 1 embedded.

The installation part 7 is a hole formed on the surface of the glass plate 2, and the light emitting element 3 can be embedded in the installation part 7 formed as a hole. The installation portion 7 is formed in a hole shape by cutting the surface of the glass plate 2.

The light emitting element 3 is disposed so that the light emitting surface is positioned in the bottom direction of the installation portion 7 formed on the glass plate 2, and particularly when viewed from the display surface side of the glass plate 2, The color increases and the color is clearly reflected. The light emitting element 3 is arranged in such a direction, and the conductive film 4 is formed on the surface opposite to the display surface of the glass plate 2.

A part of the conductive film 4 can be selectively formed as an electric circuit pattern 41 on the back surface, which is the surface opposite to the display surface of the glass 2. Thereby, the electric circuit pattern 41 can be electrically connected to the light emitting element 3 by the solder 8, and it is not necessary to provide a connection structure for supplying power to the light emitting element 3. It is possible to simplify the structure of 1. The electric power supplied to the light emitting element 3 through the electric circuit pattern 41 is supplied by a power source (not shown) made of a solar cell.

Furthermore, another part of the conductive film 4 can be selectively formed as a pattern 42, and the decorativeness of the functional glass 1 can be improved. The electric circuit pattern 41 and the pattern 42 are selectively formed by etching.

In addition, the conductive film 4 can generate heat when energized. In particular, when the functional glass 1 of the present invention is used in a building or a vehicle, it is possible to prevent condensation by generating heat. .

The second embodiment of the present invention shown in FIG. 3 is a double-glazed functional glass in which the glass plate 20 and a glass plate 21 made of light control glass are arranged with an air layer 5 interposed therebetween. 1. In the present embodiment, the glass plate 20 is disposed so that the surface on which the installation portion 7 is formed faces the air layer 5.

Further, in the case of the multi-layer glass type functional glass 1, the air layer 5 has a higher heat-shielding property as in the case of a general multi-layer glass, so that the conductive film 4 is used when used for a building or a vehicle. It is possible to adjust the indoor air environment more effectively by the heat generated by.

Furthermore, in this embodiment, the glass plate 20 constituting the multi-layer glass type functional glass 1 forms the conductive film 4 on the air layer side surface and attaches the light emitting element 3 to the air layer side surface. The installation portion 7 is formed in a hole shape, and the light emitting element 3 made of LED can be embedded in the installation portion 7.

In the present embodiment, light control glass is used for the glass plate 21 constituting the double-glazed functional glass 1. The light control glass is coated with a metal oxide or the like on the side of the air layer 5, and the electrochromic glass that returns to the original state and closes to the transparent glass when used when the current flows is reduced. .

Further, a temperature sensor (not shown) for detecting the glass temperature is installed on the indoor side of the functional glass 1, and the glass temperature on the indoor side is set to a predetermined value in consideration of the temperature of the glass plate 21 from the calculation of heat transfer. When the temperature is reached, an electric current is applied, and the transmittance of the glass plate 21 can be reduced.

In this embodiment, the electrochromic glass used for the glass plate 21 controls the application of current based on the temperature change detected by the temperature sensor installed on the indoor side of the functional glass 1. For example, the transmittance may be controlled by applying a current to the light emitting element 3.

Moreover, in a present Example, the example which uses light control glass for the glass plate 21 arrange | positioned on the outdoor side of the multilayer glass type functional glass 1 is shown, and electrochromic glass is used as light control glass. However, for example, thermochromic glass using silver iodide or the like to shield solar radiation when the glass temperature rises, or rare earth such as nickel or magnesium coated on the glass surface by adding hydrogen to argon gas in the multilayer glass Gas chromic glass that changes the transmittance and reflectance of the thin film can be used as well.

Further, in this embodiment, the electric circuit pattern 41 is electrically connected by the solder 8. However, the electric circuit pattern 41 and the light emitting element 3 such as various types of solder such as yarn solder and paste solder and silver paste are electrically connected. Various materials and methods that can be connected together can be used as well.

The third embodiment of the present invention shown in FIG. 4 is a multilayer glass type functional glass 1 composed of the glass plate 22, the glass plate 23, the spacer 51, and the air layer 5. In the present embodiment, the light emitting element 3 made of LED is disposed on the spacer 51 so that the light emitting surface faces the air layer 5.

Further, in the case of the multi-layer glass type functional glass 1, the air layer 5 has a higher heat-shielding property as in the case of a general multi-layer glass, so that the conductive film 4 is used when used for a building or a vehicle. It is possible to adjust the indoor air environment more effectively by the heat generated by.

The glass plates 22 and 23 are disposed so as to face each other with the air layer 5 interposed therebetween, and a conductive film 4 is formed on the side of the glass plates 22 and 23 facing the air layer 5, and the conductive film 4 is the spacer. The light emitting element 3 arranged at 51 is electrically connected. In such a configuration, the two glass plates 22 and 23 can be used as electrodes.

The fourth embodiment of the present invention shown in FIG. 5 is a laminated glass type functional glass 1 in which the glass plate 24 and the glass plate 25 are arranged via an intermediate film 6. In this embodiment, the glass plate 2 is disposed so that the surface on which the installation portion 7 is formed faces the intermediate film 6.

In the present embodiment, the intermediate film 6 can be a liquid crystal sheet whose transparency can be changed by energization. In this case, an electric circuit pattern 41 formed on a part of the conductive film 4. It is possible to energize the intermediate film 6 using. As described above, when the liquid crystal sheet whose transparency is changed by energization is used for the intermediate film 6, it is further combined with the light emission by the light emitting element 3 and the pattern 42 formed by a part of the conductive film 4. Visibility can be improved.

In the present embodiment, the intermediate film 6 can be a liquid crystal sheet whose transparency can be changed by energization. In this case, an electric circuit pattern 41 formed on a part of the conductive film 4. It is possible to energize the intermediate film 6 using. As described above, when the liquid crystal sheet whose transparency is changed by energization is used for the intermediate film 6, it is further combined with the light emission by the light emitting element 3 and the pattern 42 formed by a part of the conductive film 4. Visibility can be improved.

In the present embodiment, the intermediate film 6 uses a liquid crystal sheet whose transparency is changed by energization. However, the present invention is not limited to this, but a normal resin intermediate film such as EVA (ethylene vinyl acetate), PVB ( Polyvinyl butyral) may be used to improve penetration resistance.

The invention's effect

The functional glass of the present invention can be used for various applications such as signboards, electrical decorations, and lighting by incorporating a light emitting element in the glass.

In the functional glass of the present invention, a glass plate is provided with a hole or a thin portion of the glass plate to form an installation part, and a light emitting element is arranged in the installation part, and a single glass plate also emits light on the glass. Functions can be added.

Further, the functional glass of the present invention can be used for a glass composed of a plurality of glass plates such as a multilayer glass and a laminated glass. In this case, the functional glass of the present invention is conventionally used. Compared with a laminated glass in which a light emitting element is disposed in an intermediate film, which is a technology, the amount of light when viewed from the outside increases, the color becomes clear, and the visibility is improved.

The conductive film can be selectively formed to form an electric circuit pattern. In this case, there is no need to arrange an electric wire with respect to the light emitting element, and the functional glass can be further downsized. Is possible.

In the case where the conductive film is selectively formed, it is also possible to provide decoration by forming characters or designs.

Furthermore, the glass having the conductive film can have not only a decorative property and a function as an electrode but also a heat generating function.

In the case where the functional glass of the present invention is composed of a plurality of glass plates such as multilayer glass and laminated glass, by arranging the glass having the conductive film so that the conductive film surface faces, Two glasses can be used as electrodes, and the functional glass can be further reduced in size.

The functional glass of the present invention can supply power by a self-contained electric circuit such as a solar battery or a storage battery, but an energy saving effect can be expected by using the solar battery.

Side surface sectional drawing showing 1st Example of the functional glass of this invention Front view showing the functional glass shown in FIG. Side surface sectional drawing showing 2nd Example of the functional glass of this invention Side surface sectional drawing showing 3rd Example of the functional glass of this invention Side surface sectional drawing showing 4th Example of the functional glass of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Functional glass 2 Glass plate 3 Light emitting element 4 Conductive film 5 Air layer 6 Intermediate film 7 Installation part 8 Solder 20 Glass plate 21 Light control glass 22 Glass plate 23 Glass plate 24 Glass plate 41 Electric circuit pattern 42 Design 51 Spacer

Claims (13)

  Functional glass comprising at least one glass having a conductive film and a light-emitting element.   A functional glass comprising a glass having a conductive film and a light emitting element, wherein a hole is formed in the surface of the glass, and the light emitting element is embedded in the hole.   The functional glass according to claim 1, wherein the conductive film forms a circuit pattern by being partially disposed.   The functional glass according to claim 1, wherein the conductive film has a decorative property by being partially disposed.   The functional glass according to claim 3 or 4, wherein the partially disposed conductive film is formed by cutting a surface.   Functional glass comprising at least one glass having a conductive film, a light emitting element, and a spacer inserted between a plurality of glasses.   The functional glass according to claim 6, wherein the light emitting element is disposed in a spacer.   The functional glass according to claim 6 or 7, wherein the light emitting element is disposed on a spacer and emits light toward an air layer formed between the glasses.   The functional glass according to claim 1, wherein two glasses are used as electrodes by disposing the glass having the conductive film so that the conductive films face each other.   The functional glass according to claim 1, wherein the glass having the conductive film has a heat generation function.   A functional glass according to claim 1, wherein a self-contained electric circuit is connected to the functional glass according to claim 1.   The functional glass according to claim 11, wherein the self-contained electrical circuit includes a solar cell.   The functional glass according to claim 11, wherein the self-contained electrical circuit includes a storage battery.

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