JP2003034560A - Laminated glass and transmitting/receiving devise using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a laminated glass with a built-in light emitting/receiving element that can be used for a high mount stop lamp or a windshield having excellent visuality and design. SOLUTION: This laminated glass in which at least two individual glass boards are stuck together through an intermediate film, is characterized in that the intermediate film has cut parts or thinner parts in which a light emitting element and/or a light receiving element are sealed, and the light emitting element and/or the light receiving element are connected with a wiring installed inside the laminated glass.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, LEDs and Ps.
The present invention relates to a laminated glass including a light receiving / emitting element such as D.

[0002]

2. Description of the Related Art Conventionally, for example, in the field of automobiles,
A high mount stop lamp is used as a device for informing a driver of a following vehicle of brake operation.
Most of them have a lamp installed on the inside of the rear glass of the car, a LED installed on the spoiler installed on the upper part of the car trunk or a roof, or a part of the rear part of the trunk. It is a form.

Further, a receiver such as VICS and a communication device for an automatic toll collection system (ETC) on a highway are built in a vehicle installed in a dashboard.

[0004]

However, as described in the above-mentioned prior art, when the high mount stop lamp is mounted inside the rear glass of the vehicle, there is a problem that the space inside the vehicle is sacrificed. In the case of a sedan type car, there is no particular problem, but in the case of a wagon type car, the protrusion of the lamp part is an obstacle and the appearance is not good. This is particularly noticeable in glass hatch type automobiles.

In recent years, dark glass such as privacy glass has been increasingly used as a rear glass for automobiles. When installing a high-mount stop lamp inside a dark-colored glass car, the dark-colored glass reduces the light from the high-mount stop lamp. Many (for example, JP-A-11-157882)
issue).

In addition to the above, when a high mount stop lamp is incorporated in the spoiler on the upper part of the trunk of a car or the rear part of the trunk, the mounting position becomes low, and there is a tendency that the effect is lowered in terms of visibility. It also has the disadvantage that it easily gets dirty as the mud jumps up while driving.

Further, the designs of the above-mentioned high mount lamps of the prior art have many rectangular shapes for the in-vehicle installation type and many straight shapes for the spoiler mounting type. In this way, its design is limited and its design is poor.

On the other hand, ITS-related transceivers such as VICS are often installed on the dashboard. Due to the influence of the reflection on the windshield of the automobile, it is necessary to provide a space between the light emitting element and the light emitting element in order to avoid interference due to the signal directly entering the light receiving element. Therefore, there is a problem that the device cannot be manufactured compactly. In addition, when an object is placed on the dashboard and the light is shielded, there is a problem that a signal cannot be received or transmitted.

Therefore, the present invention has a built-in light emitting / receiving element,
A new laminated glass is provided. INDUSTRIAL APPLICABILITY The laminated glass according to the present invention is applied to, for example, a high mount stop lamp or a windshield glass, which has excellent visibility and is rich in design.

Further, the transmitting / receiving device using the laminated glass according to the present invention can be applied to the construction of a wireless LAN between buildings.

[0011]

The present invention provides a laminated glass in which at least two single glass plates are adhered via an intermediate film, and the intermediate film is a film. A thin portion or a cutout portion is provided, a light emitting element and / or a light receiving element is enclosed in the portion, and wiring provided inside the laminated glass and the light emitting element and / or the light receiving element It is a laminated glass characterized by being connected.

According to a second aspect of the present invention, in the laminated glass according to the first aspect, the laminated glass is attached to a rear opening of the vehicle, and the light emitting element is connected to a wiring of a warning light of the vehicle. It is a laminated glass characterized by.

A third aspect of the present invention is the laminated glass according to the first aspect, wherein the light emitting element comprises a plurality of light emitting elements, and the plurality of light emitting elements are arranged in a character shape and / or a graphic shape. It is a laminated glass.

According to a fourth aspect of the present invention, there is provided a laminated glass in which at least two single glass plates are adhered via an intermediate film, and the intermediate film is provided with a thin portion or a cutout portion. The light emitting element and / or the light receiving element is enclosed in the portion, the wiring provided inside the laminated glass and the light emitting element and / or the light receiving element are connected, and the light emitting element and the light receiving element transmit and receive. A transmitter / receiver using laminated glass characterized by being connected to a circuit.

As a fifth aspect of the present invention, there is provided a transmission / reception device using the laminated glass according to the fourth aspect, wherein the transmission / reception device is provided in a front opening of a vehicle and is capable of communicating with an ITS transmission / reception device provided on a road. It is the transmitter / receiver that was used.

As a sixth aspect, a transmitter / receiver using the laminated glass according to the fourth aspect is provided in an opening of a building and forms a wireless LAN with the transmitter / receiver provided in another building. It is a transmission / reception device using glass.

The laminated glass containing the light emitting / receiving element according to the present invention can be applied to the following various uses. Laminated glass with high mount stop lamp for automobiles, windshield glass for automobiles equipped with communication light receiving and emitting elements used for ITS communication, wireless LAN
Building laminated glass with built-in light receiving and emitting elements.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION (First Embodiment) First, as an example of a laminated glass containing a light emitting / receiving element according to the present invention,
An embodiment of a glass plate with a high mount stop lamp will be described in detail with reference to the accompanying drawings.

Example 1 FIG. 1 shows a laminated glass 1 with L
It is sectional drawing which showed the mode that ED2 was enclosed. less than,
An example of a method for manufacturing a laminated glass including a light emitting / receiving element will be described. First, the intermediate film 5 constituting the laminated glass is
Partially thin or cut out. For example, a package of an LED chip that emits red light is fitted in that portion, and this LED chip is wired with a thin copper wire. The thus-obtained interlayer film is sandwiched between two glass plates, and pressure-bonded in an autoclave to obtain a laminated glass according to a usual method for producing a laminated glass.

FIG. 2 shows an example in which this laminated glass is used as a rear window 13 with a high mount stop lamp, and a package 2 of a plurality of LED chips is incorporated. Note that in the example of FIG. 2, a plurality of LED chips are connected in series. Also, a thin copper wire is used for the wiring 31,
It's not noticeable.

A power supply terminal 33 is provided on the stepped portion provided around the laminated glass (see FIG. 3).
The end of the copper wire 31 is connected to the power supply terminal 33,
Further, it is connected to a power source (not shown) via switch means. The switch means is interlocked with the switch means of the brake lamp, and the LED built in the laminated glass can be turned on by stepping on the brake pedal.

An outline of the LED package is shown in FIGS. This LED package was manufactured by using a black heat-resistant resin case 26 of 5 × 5 mm size with the thickness of the intermediate film being 0.7 mm. The cathode side of the LED chip 21 was connected to the base electrode 22 side, the anode side was connected to the anode electrode 23 by wire bonding 24, and the package was sealed with an epoxy resin 25.

Since the size of this LED package is 5 mm square, even if the user looks rearward through the rearview mirror or directly looks at the rear window when retracting, there is no particular obstruction.

Further, since the light emitting direction of the LED is directed to the outside of the vehicle, the LED light does not enter the eyes of the driver even when the driver looks at the rearview mirror even at night, which greatly affects the rear view. Does not reach.

In the first embodiment, the package size is 5 × 5 mm, but the LED chip size is 0.3 ×.
Since it is 0.3 mm or less, the package size can be further reduced.

If a thin LED is used, a laminated glass can be obtained without performing any special processing on the intermediate film in advance.

When the rear glass is dark glass, the glass inside the vehicle is preferably dark glass and the glass outside the vehicle is transparent glass. In this way, a dark rear glass can be obtained without significantly reducing the light amount of the LED.

(Embodiment 2) In the above-mentioned Embodiment 1, the wiring is performed by using the copper wire, but the transparent conductive film may be pattern-printed. First, a high-brightness LED chip (N: R4A manufactured by Dowa Mining Co., Ltd.) is mounted on a glass plate on which a patterned transparent conductive film is wired.
23) was attached. With the emitting surface of the LED as the outside of the vehicle,
Through an intermediate film (for example, polyvinyl butyral film),
By sandwiching it with another glass plate, a laminated glass for automobile as shown in FIG. 6 was manufactured. A power supply terminal was provided at the end of the transparent conductive film and connected to the wiring of the brake lamp. The LED 2 and the transparent conductive film 32 were connected by wire bonding.

(Embodiment 3) Further, as shown in FIG.
The laminated glass on which the LED 2 is arranged is displayed on the rear window 13 of the vehicle so that the message "OP" is displayed.
It is also possible to apply to. In this case, since the wiring becomes complicated, it is preferable to use a transparent conductive film. Of course, it is not difficult to insert characters or figures other than "STOP".

(Embodiment 4) It is also possible to use an orange LED 2 and arrange it in the shape of an arrow, for example, to give it the function of a turn signal (see FIG. 8).

(Embodiment 5) In a laminated glass having a built-in light emitting / receiving element, a heat ray group 6 may be provided on the surface of the laminated glass on the inner side of the vehicle in order to have an antifogging function (see FIG. 9). At that time, the LED 2 may be arranged at a position behind the heat ray formed by the driver. LE
Since the size of the D chip is as small as 0.3 × 0.3 × 0.2 mm, there is no particular obstruction when viewed through the rearview mirror. Further, a transparent conductive film may be formed almost in the field of view, and the transparent conductive film may be used for antifogging.

(Embodiment 6) Furthermore, the laminated glass according to the present invention can be applied to side glasses that are fitted and killed. For example, it is also possible to use a white LED and use the emitting surface of the LED as the inside of the vehicle, instead of the room lamp.

(Second Embodiment) This embodiment is an example in which the laminated glass incorporating the high mount stop lamp described in the first embodiment is used as a small LED module. As shown in FIG. 10, the laminated glass module 1 is attached to the inside of a rear glass 13 of an automobile, which is made of tempered single glass. This module can also be configured by using, for example, an acrylic plate other than glass as the transparent plate.

(Embodiment 9) Furthermore, a laminated glass 1 in which LEDs 2 are arranged in a matrix on a front window
As a head-up display, it is also possible to display speed (see FIG. 11). In this case, the emitting surface of the LED faces the driver side.

(Embodiment 10) Furthermore, the room lamp can be used by using it as a room lamp by installing it on the window glass of an automobile so that the light emitting surface faces the inside of the vehicle, or by combining a number of LEDs into a planar illumination body. It is also possible to use as.

(Embodiment 11) In the above embodiment, an example of application to an automobile has been described. However, the present invention is not limited to this, and a glass plate in which LEDs are sandwiched between laminated glasses can be used for shop window glasses (show windows), showcases (see FIG. 12), signboards, and the like.
It is also possible to emit light to both the front and back of the glass plate by wiring the LED with a transparent conductive film.

It is also possible to fabricate the mirror 15 provided with illumination by forming one of the laminated glasses as a mirror and further disposing the LED by sandwiching it around the glass (see FIG. 13).

(Third Embodiment) It is also possible to provide LEDs or PDs, which are communication elements related to ITS, on the window glass of an automobile. For example, an LED or PD may be provided on a portion of the windshield that does not obstruct the field of view (a blurred portion or a ceramic printed portion), a rear glass plate, or a glass plate of a sunroof.

In this case, an LED or PD which is a light emitting / receiving element
Are preferably connected to a transceiver which controls these elements.

FIG. 14 shows L for VICS communication related to ITS.
An example in which ED2 and PD4 are sandwiched between front laminated glass 12 of an automobile is shown.

In this embodiment, the LED 2 and PD 4 used for VICS transmission / reception are 0.7 mm thick and 10 mm ×
A 20 mm module was manufactured and fitted into a cut-out portion of a laminated glass to manufacture an automobile windshield. The lead wire from this light emitting / receiving element was taken out from the end face of the laminated glass and connected to a VICS device (not shown).

In the present embodiment, the VICS module is arranged on the lower side of the windshield on the driver's seat side, but for example, a portion which does not obstruct the visual field (a blurred portion or a ceramic print portion), the rear glass or the glass of the sunroof. It is also possible to provide it on the plate.

Further, in the present embodiment, the LED which is the transmitting element and the PD which is the receiving element are formed as one module, but it is of course possible to separate them.

Although this embodiment has shown an example of using as a communication module related to ITS for automobiles, it is used as a window glass for other communication applications such as indoor optical communication devices and optical communication between buildings. It is also possible to use a laminated glass in which the transmitting / receiving module of the present invention is enclosed (FIG. 1).
5). In this case, the two buildings are built apart from each other by a road and have a distance of about ten meters.

[0045]

As described above, in the glass plate of the present invention, the transparent conductive film formed on the glass plate is used as the wiring, and the LED is connected to this wiring. Therefore, there is no limitation on the arrangement of the LEDs on the glass plate, and the glass plate can be made to have a good design.

Further, the glass plate according to the present invention comprises a plurality of LEs.
It is also possible to arrange D to represent a character shape or a figure.

As described above, according to the present invention, by enclosing a light emitting body such as an LED or a light receiving body such as a PD in a laminated glass, a high mount lamp for an automobile or a transmission / reception module such as a VICS is provided. There is no need to sacrifice space for installing the mount stop lamp or the VICS device, or to damage the appearance of the installation.

When the laminated glass according to the present invention is used as a high mount stop lamp, the light source can be arranged at an arbitrary position of the rear window, so that in addition to the conventional line shape, an arbitrary character or It becomes possible to light up with a design, which improves the design. It is also possible to use it as a warning light for winkers other than the stop lamp.

In the laminated glass according to the present invention, a warning light such as a high mount stop lamp and a VICS transmitter / receiver are installed within a wiping range of an automobile glass wiper to enable cleaning when dirt is caused by mud or the like. Therefore, the functional deterioration due to dirt is eliminated.

For a rear window using dark glass such as privacy glass, which has been increasingly used in recent years, by making the glass inside the vehicle dark glass and the glass outside the vehicle transparent, It can be applied without reducing the light amount of the mount stop lamp.

Show windows and showcases of shops,
When it is used for a signboard or the like, it is possible to display a message by turning on the LED without hindering the view from the outside, and therefore, the design becomes very high. Further, since the surface is made of glass, it is easy to clean.

[Brief description of drawings]

FIG. 1 is a diagram schematically illustrating a cross-sectional structure of a laminated glass according to the present invention.

FIG. 2 is a diagram illustrating an example in which a laminated glass according to the present invention is used as a rear window with a high mount stop lamp.

FIG. 3 is a diagram illustrating terminals for power supply, which are provided in a peripheral step portion of a laminated glass.

FIG. 4 is a diagram illustrating a schematic structure of an LED package.

FIG. 5 is a diagram illustrating a schematic structure of an LED package.

FIG. 6 is a diagram illustrating a laminated glass for an automobile, which is patterned by a transparent conductive film.

FIG. 7 is a diagram illustrating a laminated glass configured to display a text message.

FIG. 8 is a diagram illustrating a laminated glass in which the shape of an arrow is displayed.

FIG. 9 is a view for explaining the arrangement relationship between a heat ray group of laminated glass and a light emitting / receiving element according to the present invention.

FIG. 10 is a diagram illustrating an example in which the laminated glass according to the present invention is used as a small module.

FIG. 11 is a diagram illustrating an example in which a laminated glass according to the present invention is used as a head-up display.

FIG. 12 is a diagram illustrating an example in which a laminated glass according to the present invention is applied to a showcase.

FIG. 13 is a diagram illustrating an example in which a laminated glass according to the present invention is applied to a mirror.

FIG. 14 is a diagram illustrating an example in which an LED for VICS communication and a PD are sandwiched between windshields of an automobile.

FIG. 15 is a diagram illustrating an example in which the laminated glass according to the present invention is applied to optical communication between buildings.

[Explanation of symbols]

1: laminated glass, 11, 12: transparent plate (glass plate), 13: Rear glass, 14: Windshield glass, 15: Mirror, 2: Light emitting element (LED), 21: LED chip, 22: base electrode, 23: Anode electrode, 24: Wire bonding, 25: Epoxy resin, 26: Black heat-resistant resin case, 31: Wiring (copper wire), 32: wiring (transparent conductive film), 33: terminal, 4: Light receiving element (PD), 5: intermediate film, 6: heat ray group, 7: Building

Continued front page    (72) Inventor Keiji Tsunetomo             7-28 Kitahama 4-28, Chuo-ku, Osaka City, Osaka Prefecture             Within Nippon Sheet Glass Co., Ltd. F term (reference) 3D127 AA17 CB10 CC03 DD09                 4G061 AA02 AA04 BA02 CA02 CB03                       CB12 CD02 CD18 DA23 DA38                       DA46

Claims (6)

[Claims] 1. A laminated glass in which at least two single glass plates are adhered via an intermediate film, wherein the intermediate film is provided with a thin film thickness portion or a cutout portion, and the thin film portion is provided in the portion. A laminated glass in which a light emitting element and / or a light receiving element is enclosed, and the wiring provided inside the laminated glass is connected to the light emitting element and / or the light receiving element. 2. The laminated glass according to claim 1, wherein the laminated glass is attached to a rear opening of a vehicle, and the light emitting element is connected to a wiring of a warning light of the vehicle. Laminated glass. 3. The laminated glass according to claim 1, wherein the light emitting element is composed of a plurality of light emitting elements, and the plurality of light emitting elements are arranged in a character shape and / or a graphic shape. 4. A laminated glass in which at least two single glass plates are adhered through an intermediate film, wherein the intermediate film is provided with a thin film thickness portion or a cutout portion, and A light emitting element and / or a light receiving element is enclosed in a part, and the wiring provided inside the laminated glass is connected to the light emitting element and / or the light receiving element, and the light emitting element and the light receiving element are connected to a transmission / reception circuit. A transmitter / receiver using laminated glass, which is characterized in that 5. A transmitting / receiving device using the laminated glass according to claim 4, which is provided in a front opening of a vehicle and is capable of communicating with an ITS transmitting / receiving device provided on a road. . 6. A transmission / reception device using the laminated glass according to claim 4, which is provided in an opening of a building and is used in a transmission / reception device in another building and laminated glass forming a wireless LAN. Transmitter / receiver that was present.