JPH0243484A - Crime preventing window - Google Patents

Abstract

PURPOSE:To improve economical efficiency by providing a transparent conductive film with a conducting layer side faced to the surface on top of a transparent plate, providing a protecting layer on top of the conducting layer, and electrically connecting a plurality of electrodes to the conducting layer. CONSTITUTION:A transparent conductive film in which a transparent thin film of a conductive material as a conducting layer 2 is provided on the surface of an organic polymer film, etc., while having slits 3 on the conducting layer 2, is joined to the top of a rigid transparent plate 1 of a glass, etc. A protecting layer 5 composed of an organic polymer layer, etc. or a protecting film composed of a film of a polyester resin, etc., is joined to the top of the conducting layer 2. Also, at least two electrodes 4 are provided on both ends of the flow passage of electricity of the conducting layer 2.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a security window, and particularly to a security window using a conductive film.

In recent years, the proportion of glass windows has increased due to improvements in the living environment and the purpose of daylighting, and the number of large-area glass windows has increased due to improvements in technologies such as aluminum sash and glass plate manufacturing technology.

Although this tendency is suitable for the above-mentioned purpose, it poses a very big problem from the perspective of crime prevention.

Various attempts have been made to improve the security performance of such large-area glass windows, but so far nothing has been achieved that is satisfactory in terms of economy and durability.

The present inventors have discovered that conventional touch panels and cooling
The present invention was achieved as a result of intensive research to obtain a window configuration that achieves this objective using a transparent conductive film that was used to reduce the load on the 9 ct cell.

That is, the present invention includes: a rigid transparent plate 1; a transparent conductive film l provided thereon, which is bonded with the conductive layer side facing up and having at least a slit in the conductive layer; The security window comprises a protective layer or protective film and at least two electrodes electrically connected to the conductive layer.

The rigid transparent plate 1 in the present invention may be made of any inorganic or organic material as long as it constitutes a transparent window, but a glass plate, which is a common window material, is most suitable.

Next, the transparent conductive film l consists of a film-like substrate, for example, an organic polymer film such as a polyester film, with a transparent thin film (conductive layer) of a conductive material provided on the surface, which determines the flow and resistance of electricity. In the present invention, the transparent conductive film l has the film substrate side bonded to the transparent plate, and the conductive layer on the film substrate As mentioned above, the insulating raw slit is provided. Various materials and methods for forming such conductive layers have been proposed in the past, including metal films, metal oxide films, and combinations of metal films and metal oxide films. "Handbook" December 10, 1981, published by Ohmsha, p. 494 et seq.: [Nikkei Electronics J
1978 10-30. Nikkei McGraw-Hill, 1972
Published on October 30, 2015; other known techniques are exemplified.

Among these, those in which a thin film of indium and/or tin oxide or silver and/or gold is provided by a physical paper deposition (PVD) method are preferred from the viewpoint of color tone and durability.

The above guide 1! A protective layer or protective film is provided on the layer to ensure the abrasion resistance and environmental resistance of the conductive layer.

Examples of the protective layer include organic polymer layers such as acrylic resin, urethane resin, epoxy resin, and acrylate resin, and 5in2. 'r'io2. Examples include coating layers of non-conductive inorganic materials such as TiN and Tic.

Examples of the protective film include films made of polyester resins such as polyethylene terephthalate, polyolefin resins such as polypropylene, polyamide resins, polyacrylonitrile resins, and the like.

These films may have their surfaces coated with the protective layer listed above. Among these, those with low moisture permeability are preferred in the sense of preventing moisture from entering. It may have a conventionally known heat ray reflecting function.

These may also be subjected to anti-glare treatment.

In the present invention, T-poles are provided at both ends of the electrical flow path in the conductive layer. A weak current is passed between these electrodes in order to detect when at least a portion of the transparent plate is damaged and the conductive layer of the transparent conductive film bonded thereto is broken. There is. Since this current is intended to detect breakage, faf! is the temperature of the transparent body itself. Therefore, it is not necessary to increase the temperature significantly, so an extremely weak value is sufficient. For example, it is less than 10 (llllA). A detector is connected to this electric circuit for detecting a change in resistance or a change in current caused by the rupture.

The security window of the present invention is preferably protected by providing a sealing material on the end face in order to prevent disturbance of the electrical circuit due to infiltration of water removed during cleaning or the like.

The security window of the present invention is, in principle, a transparent window.

Here, transparent includes not only a state with extremely good transparency, but also a state with reduced transparency, and even a state with no transparency but which allows light to be let in. These may be colorless or even colored.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing a transparent conductive film pasted on a transparent plate, with slits and electrodes attached. FIG. 2 is an example in which the number of electrodes in FIG. 1 is large. FIG. 3 shows a cross-sectional view of the vicinity of the electrode. 1. Transparent plate 2. Conductive layer 3, 31. Slit 4, electric f
! 5. Protective layer 6. Adhesion J- 7. Transparent conductive film base material 20. Sensor patent applicant: Teijin Co., Ltd. Funeral map, Figure 2, Figure 3

Claims (1)

[Claims] Rigid transparent plate ￥1￥; A transparent conductive film provided on the conductive layer, bonded with the conductive layer side facing up, and having at least a slit in the conductive layer ￥2￥; Provided on the conductive layer A security window comprising a protective layer or protective film for 3 yen and at least two electrodes 4 yen electrically connected to the conductive layer.