JP2012042501A - Glass plate structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a glass plate structure having excellent display property for an image on a television set, having a mirror effect as a whole, and effectively usable for a show window or an indoor interior material.SOLUTION: The glass plate structure is excellent in display property for a display screen of a television set and excellent in a mirror effect and is characterized in that: a glass plate is disposed on a display screen of a thin television set, the glass plate having an area larger than the display screen; a light-transmitting metal thin film is formed over the entire surface of the glass plate, the surface in a side close to the display screen of the television set; and a black coating film is further formed on the metal thin film surface of the glass plate, outside the frame of the display screen of the television set.

Description

  The present invention relates to a structure in which a glass plate having a larger area than the display surface is installed on the display surface of a thin television. More specifically, when the television is displayed, the television is displayed on the glass plate, and when the television is not displayed, the glass plate relates to a glass plate structure having an excellent mirror effect.

  A glass plate is excellent in transparency, durability and strength, and has been used for a long time as a window or partition material of a building or a house. On the other hand, special glass with various functions has been developed and put into practical use by variously processing the surface of the glass plate. One of them is a glass plate in which a metal thin film is formed on the surface of the glass plate by a vacuum deposition method or a sputtering method.

  The glass plate processed with a metal thin film has been widely used recently because it is excellent in sunlight (natural light) shielding performance and has an energy saving effect and an ultraviolet cut effect, although it depends on the type and thickness of the metal. On the other hand, among these glass plates processed with a metal thin film, a glass plate having a relatively low light transmittance and a high visible light reflectance has been attracting attention as a decorative crow window or an interior material. For example, when the metal thin film processed glass plate is used as a material for window glass, indoor partitions, exhibition panels, etc., the glass plate functions not only as a natural light shielding effect but also as a half mirror effect.

  When the half mirror effect is observed through the glass plate, the light shielding effect and the reflection effect change according to the brightness of the inside and outside. For example, if the room is viewed from the outside through the window of the glass plate, it is difficult to observe the state and condition of the room clearly in the daytime due to the mirror effect, but conversely, if the room becomes brighter than the outside, You can see the inside of the room relatively well.

  When the glass plate having the half mirror effect is installed in front of an image display surface of a television (hereinafter simply referred to as “TV”), when a TV image is displayed, However, when the TV is turned off, the TV image cannot be seen as a matter of course, but the existence of the TV itself is hardly understood.

A structure in which a TV is installed after the glass plate having the half mirror effect described above is used as a show window, for example, for advertisements, advertisements, guidance, exhibitions, etc. of a store, and as an interior partition material, It is used as a room interior that displays TV images simultaneously.
The glass plate having the half mirror function has an appropriate mirror effect and light transmittance. However, when a TV image is displayed, attention is concentrated on the TV image. However, when the TV is turned off, the presence of the TV main body becomes obvious, and the appearance of parts other than the TV main body can be seen relatively well. . Thus, even when the power of the TV is turned off, there is a case where a strong mirror effect that does not clearly show the state other than the TV main body through the glass plate may be desired.

Therefore, the present inventor can observe the TV image clearly through the glass plate when the TV image is displayed, and the TV main body through the glass plate when the TV is turned off. When the existence is hardly recognized and there is not much difference in brightness between the front and back of the glass plate, research has been conducted on the development of a structure in which one state cannot be clearly observed from the other or hardly discernable. .
As a result, a structure in which a glass plate having a half mirror function is installed on the TV image display surface, and a black paint is applied to the glass plate area other than the TV image display surface to form a coating film, If the structure is used as, for example, window glass or installed inside the window, the mirror effect is further enhanced, and even if the other becomes brighter, not only the appearance of the other can be observed, but also the TV image When it is displayed, the presence of the TV image is displayed more clearly, and when the TV is turned off, the presence of the TV body is hardly recognized, and the glass plate as a whole has an excellent mirror effect. It was found that can be played.

The present invention has been completed based on the above knowledge, and according to the present invention, a glass plate having a larger area than the display surface is installed on the display surface of a thin television, A light-transmitting metal thin film is formed over the entire surface of the television display surface, and a black coating film is further formed on the metal thin film on the glass plate and outside the frame of the television display surface. A glass plate structure excellent in display property of a television display surface and excellent in mirror effect is provided.
Furthermore, in the glass plate structure of the present invention, the following aspects (1) to (5) are preferable.
(1) The metal thin film is a metal thin film formed on the surface of a glass plate by vacuum deposition or sputtering.
(2) The metal thin film is an aluminum metal thin film.
(3) The glass plate on which the metal thin film is formed has a visible light transmittance (wavelength 550 nm) of 18.
~ 30%.
(4) The glass plate on which the metal thin film is formed has a reflectance of visible light of 20 to 30%.
(5) The black coating film is a coating film formed by applying a two-component epoxy resin paint containing a black pigment.

  The glass plate structure of the present invention has a strong mirror effect and is excellent in TV image display. Further, when the TV is turned off, not only the whole functions as a mirror effect but also the whole mirror effect of black pigment is emphasized. In addition, the display surface of the TV image is clearly projected with a strong contrast from the surrounding black pigment mirror surface, which is excellent in decoration and design.

The front view of the glass plate structure of this invention is shown. FIG. 2 shows a cross-sectional view in the X-X ′ direction of the glass plate structure of FIG. 1.

  The glass plate structure of the present invention will be specifically described below with reference to the drawings. FIG. 1 shows a front view of a glass plate structure 1 of the present invention. In FIG. 1, a display surface 3 for a TV image is shown in a dotted frame within a glass plate. The glass plate 2 in FIG. 1 has a rectangular shape in which the horizontal direction is longer than the vertical direction. It may be a regular square. In FIG. 1, there is one TV image display surface 3, but there may be a plurality of TV image display surfaces 3.

  On the back side of the TV image display surface 3 in the glass plate 2 of FIG. 1 (the opposite surface of FIG. 1), the TV is installed with the display surface facing the glass plate. The glass plate 2 is formed with a light-transmitting metal thin film on the entire surface of the back surface (TV side surface). By forming this metal thin film, a half mirror effect can be obtained. Further, a black coating film is formed on the surface of the metal thin film outside the frame of the display surface 3 of the TV image of the glass plate 2 (that is, the portion outside the region surrounded by the dotted line). In other words, in the frame area (inside the dotted line) of the TV image display surface 3, only the metal thin film is formed on the surface of the glass plate 2, and outside the TV image display surface 3 frame on the surface of the glass plate. A metal thin film and a black coating film are formed. A sensor window 7 may be provided in the vicinity of the outer frame of the TV image display surface 3.

FIG. 2 is a cross-sectional view in the XX ′ direction in the plan view of the glass plate structure 1 in FIG. A thin metal film 5 is formed on the entire surface of the glass plate 2 of FIG. 2 on the TV body 4 side. Further, a TV body 4 is installed on the glass plate 2 of FIG. Further, as shown in FIG. 2, a black coating film 6 is formed on the surface of the metal thin film 5 on the surface of the glass plate 2 outside the frame of the TV image display surface.
In FIG. 2, the TV main body 4 may be installed on the glass plate 2 so that the image display surface is located within the dotted frame in FIG. 1, and the installation means is not particularly limited. It is desirable that the glass plate 2 and the TV image display surface have an interval of preferably 5 to 10 mm.

  The TV main body 4 may be fixed in a state of being joined to the glass plate 2 via a frame around the TV image display surface, and the TV main body 4 may be installed independently of the glass plate 2. . When the TV main body 4 is installed independently of the glass plate 2, the TV main body 4 may be hung from the ceiling, or may be installed on a floor with an installation table. As the glass plate 2, a single-plate float glass is generally used, and a thickness of 5 to 10 mm, preferably 6 to 8 mm is appropriate. For example, a sash frame can be installed around the glass plate 2.

  The metal thin film 5 formed on one surface of the glass plate 2 is usually formed by vacuum deposition or sputtering. As this metal thin film 5, when it is formed on the glass plate 2, one having a normal half mirror effect is suitable. The type of the metal thin film 5 is preferably an aluminum thin film from the viewpoints of ease of formation of the thin film, cost, durability, color reproducibility, transparency, and reflectance.

  When the metal thin film 5 is formed on the glass plate 2, its visible light transmittance (550 nm wavelength) is preferably in the range of 18-30%, and the visible light reflectance is in the range of 20-30%. It is desirable that

  Although the black coating film 6 is formed on the surface on which the metal thin film 5 is formed, as described above, the black coating film 6 should not be formed on the display surface 3 of the TV image. The black coating film 6 is formed in a region outside the frame of the TV image display surface.

  The black coating film 6 may be formed by applying a coating liquid containing a black pigment (for example, carbon black) onto a metal thin film by a spray method or a calendar printing method and drying it. A particularly preferable coating film is formed by applying a two-pack type epoxy resin containing a black pigment by spraying, drying and baking. The coating film made of this two-pack type epoxy resin film is excellent in heat resistance and durability. The black coating film has a thickness of 10 to 50 μm, preferably 15 to 40 μm.

  The formation of the black coating film 6 enhances the mirror effect when viewed from the surface of the glass plate 2 and further enhances the presence of the TV image. Further, when the TV is turned off, the presence of the TV main body can hardly be confirmed, and the whole has a mirror effect.

  In the glass plate structure of the present invention, the mirror effect of the black pigment is emphasized around the TV image, and has an effect of excellent display properties of the TV image. Even when the TV is turned off, the whole has a mirror effect so that the presence of the TV main body is hardly felt. Therefore, it is a glass plate excellent in display, design, and decorativeness, and can be effectively used as a material for a show window, indoor interior, and the like.

DESCRIPTION OF SYMBOLS 1; Glass plate structure 2; Glass plate 3; Television image display surface 4; Television main body 5; Metal thin film 6; Black coating film 7;

Claims (6)

  A glass plate having a larger area than the display surface is installed on the display surface of the thin television, and a light-transmitting metal thin film is formed over the entire surface of the glass plate on the display surface side. In addition, a black coating film is further formed on the glass thin film surface of the glass plate and outside the frame of the television display surface. Excellent glass plate structure.   2. The glass plate structure according to claim 1, wherein the metal thin film is a metal thin film formed on a glass plate surface by a vacuum deposition method or a sputtering method.   The glass plate structure according to claim 1, wherein the metal thin film is an aluminum metal thin film.   The glass plate structure according to claim 1, wherein the glass plate on which the metal thin film is formed has a visible light transmittance (wavelength 550 nm) of 18 to 30%.   The glass plate structure according to claim 1, wherein the glass plate on which the metal thin film is formed has a visible light reflectance of 20 to 30%.   The glass plate structure according to claim 1, wherein the black coating film is a coating film formed by applying a two-component epoxy resin paint containing a black pigment.

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