JPH0731220Y2 - Laminated glass - Google Patents

Description

[Detailed description of the device] Industrial field of application This device is used for windows of buildings, shops, houses, openings of entrances,
Alternatively, the present invention relates to a laminated glass used as an indoor partition or an outdoor signboard, an electronic bulletin board, or the like.

Conventional technology As a sheet glass used for windows of high-rise buildings, openings such as entrances, or for shop show windows, etc., tempered by heating sheet glass to near the softening point and then uniformly blowing air at room temperature to quench it. Glass or laminated glass in which a synthetic resin film is sandwiched between two glasses is used.

Problems to be Solved by the Invention Although the above-mentioned conventional laminated glass is suitable for daylighting, it does not have a light-shielding property, so that there is a problem that it cannot be shielded without using a blind or a curtain for light-shielding. Also, when used for outdoor signboards, electronic bulletin boards, etc.,
Since the structure is only for protecting the front of the advertising display part and the sign display part, there are problems such as difficulty in viewing depending on the light conditions.

Means for Solving the Problems In order to solve the problems of the laminated glass described above, the present invention proposes an active layer consisting of a group of microcapsules enclosing a liquid crystal in a transparent support substrate having a transparent conductive thin film on its inner surface. Is sandwiched so that the left or right or the upper and lower positions of the support substrate are slightly displaced, and a conductive metal foil electrode is provided in the displaced portion to form the shutter device portion. This is to form a laminated glass plate that is sandwiched and formed by a flat glass plate. Further, the lead wire of the power supply for driving the liquid crystal for enclosing the active layer is connected to the conductive metal foil electrode exposing a part of the conductive metal foil electrode by cutting out a part of the plate glass.

Action The liquid crystal molecules are aligned by applying an electrical load that changes the optical properties (light transmission / scattering property) of the liquid crystal encapsulation active layer through the lead-in line of the power source for driving the liquid crystal encapsulation layer. Light can be transmitted or blocked between the plates.

Embodiment An embodiment of the present invention will be described with reference to the drawings. In FIGS. 1 and 2, a transparent conductive film 2, 2a is formed on the inner surface of a supporting substrate 1, 1a made of two transparent plastic films. Provided,
An active layer 3 containing a liquid crystal is enclosed between the supporting substrates 1 and 1a to form a liquid crystal-encapsulated laminated film. Active layer 3 containing liquid crystal
Is a particle in which liquid crystal is encapsulated in a fine microcapsule of several microns to several tens of microns and dispersed and encapsulated in a liquid crystal and a plastic substance whose optical properties are adjusted, and is itself a spacer. Therefore, it is enclosed in two transparent support substrates 1 and 1a without using a spacer. The supporting substrates 1 and 1a are made of a polyester film or a flexible plastic film similar to this, and a transparent conductive film 2 or 2a made of a material such as indium oxide or tin oxide is applied, printed, or vapor-deposited on the inner surface. The supporting substrate 1, 1a is slightly shifted to the left or right or the upper and lower sides to enclose the active layer 3 in which the liquid crystal is enclosed, and the conductive metal foil is formed on the mutually offset portions of the supporting substrate 1, 1a. Electrodes 4 and 4a, and the metal foil electrodes 4 and 4a
Only the transparent conductive films 2 and 2a provided on the inner surface of 1a are electrically conductively bonded to form the shutter device section 10.

The shutter device section 10 configured as described above is laminated with a transparent adhesive 6,6a on a pair of transparent plate glasses 5,5a to form a laminated plate glass, which is formed on a part of the plate glass 5,5a, respectively. A power supply for driving the liquid crystal enclosed in the active layer 3 by providing notches 7 and 7a to partially expose the conductive metal foil electrodes 4 and 4a to the outside from the exposed portions 8 and 8a, respectively. By providing the lead-in lines 9 and 9a and applying an electrical load through which the optical physical properties (light transmission / scattering property) of the liquid crystal active layer 3 can be changed through the power supply lead-in lines 9 and 9a for driving the liquid crystal, This is to form a laminated glass plate having a visual image opening / closing effect separated from this.

Further, for example, as shown in FIG. 3, three shutter device parts 10 each composed of a supporting substrate 1, 1a in which an active layer 3 containing liquid crystal is enclosed are sandwiched by a pair of plate glasses 5, 5a to form a laminated glass plate. In this case, in each shutter device section 10, the conductive metal foil electrodes 4 and 4a exposed in the cutouts of the sheet glass as well as the single laminated sheet glass shown in FIGS. A power supply lead-in wire 9 for driving each shutter device section may be formed on the laminated glass plate.

In the figure, 11 is an insulating material.

Effect of the Invention Since the laminated glass of the present invention has the structure as described above, when it is used for windows of high-rise buildings, entrances and exits of shops, houses and other openings, there is no need to provide blinds or curtains for shading. By applying an external voltage to the active layer in the supporting substrate sandwiched between the inner surfaces of the plate glass, the liquid crystal in the active layer can transmit and block the light under the influence of the electric field, so that it is possible to collect light in the room. It is easy and can be easily shielded by stopping the application of the voltage from the external power supply.

Further, the laminated glass provided with one shutter device section of the first embodiment shown in FIG. 1 is a partition for an interior room for the purpose of simply partitioning without having to worry about the incident angle of the sun,
Alternatively, it is suitable for a partition window of an in-store counter.

Furthermore, when using laminated glass provided with a plurality of shutter device parts shown in FIG. 3, since the light-collecting or light-shielding position can be selected according to the incident angle of sunlight, the same effect can be obtained without using a blind. ..

Since the metal foil electrodes are all enclosed in the laminated glass except for the electrode lead-in wire take-out port, it is possible to enhance the safety from electric leakage.

[Brief description of drawings]

1 is a front view, FIG. 2 is a sectional view taken along the line II-II in FIG. 1, and FIG. 3 is a front view of another embodiment. is there. 1,1a …… Transparent support substrate 2,2a …… Transparent conductive film 3 …… Liquid crystal active layer 4,4a …… Metal foil electrode 5,5a… Plate glass 6,6a …… Transparent adhesive 7,7a ...... Notch part 8,8a …… Metal foil electrode exposed part 9,9a …… LCD power supply lead-in wire 10 …… Shutter device part 11,11a …… Insulation material

Claims (1)

[Scope of utility model registration request] 1. An active layer composed of a group of microcapsules in which liquid crystal is enclosed by a transparent support substrate having a transparent conductive film inside, and sandwiched so that any one of the left and right or upper and lower positions of the support substrate is slightly displaced. In addition, one or a plurality of shutter device portions each having a conductive metal foil electrode provided on the offset portion are integrally sandwiched by transparent plate glasses, and a part of the plate glasses is cut away to form the shutter device. 1. A laminated glass sheet, characterized in that one end of the conductive metal foil electrode of the part is exposed and a lead-in line of the power source for driving the enclosed liquid crystal of the active layer is connected to the conductive metal foil electrode.