JPH11327476A - Curved surface display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a display device a thin structure and to enable the use of a reflection manuscript by utilizing a surface illumination using transparent plates. SOLUTION: The reflection manuscript 4 is installed on a substrate 1 having a surface curved by bending, on which a curved transparent plate 3 is provided. A fluorescent lamp 3 is arranged at an end part of the transparent plate 3 while attached thereto, thereby making the entire device a thin structure. Light beams radiated from the fluorescent lamp 3 are made incident on the transparent plate 2 and are transmitted while reflection is repeated with the curved surface, thereby illuminating the entire manuscript 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device such as an outdoor display, an advertisement display plate on a platform of a station, a passageway, or a wall of a building, and a display device such as a time display plate, a road display plate, an indoor display in a store or a restaurant. Things.

[0002]

2. Description of the Related Art Conventionally, on an advertising display board or a timetable using a wall of a building, items to be displayed on a translucent display board are drawn, and illumination light is applied from the back of the display board with a light source such as a fluorescent lamp. , The display was raised.

Information signs and rooftop signboards on expressways and the like illuminate a display surface with lights to make display items stand out. In recent years, a light scatterer is provided on or inside the transparent plate, and light from a light source placed outside the edge of the transparent plate is irregularly reflected by the light scatterer and guided to the surface of the transparent plate. 2. Description of the Related Art An advertising display board using a surface lighting device that illuminates the whole has been proposed.

For example, JP-A-57-128383, JP-A-55-124104, and JP-A-63-1
No. 09409, JP-B-2-43282, and the like.

[0005]

However, since these display devices illuminate the original from the back with a surface light source, the original must be made of a transparent sheet. However, the transparent sheet is expensive and is simple. Can not create a manuscript. In recent years, color copying and DTP using a personal computer have become inexpensive, and it has become possible to easily create originals depicting the display contents. Therefore, a thin display device using a transparent plate capable of using these reflective originals has been developed. Was desired. An object of the present invention is to provide a display device which can make a display device thinner so that display contents can be easily changed, and can use a reflection original.

[0006]

Accordingly, the present invention provides a curved substrate having a curved transparent plate on the upper surface thereof, a light source provided at an end of the transparent plate, and a light beam illuminating the entire original. I did it.

[0007]

[Function] Since the substrate has a curved surface, the light emitted from the light source provided at the end of the transparent plate is illuminated while being repeatedly reflected within the transparent plate, so that the original can be raised brightly, and the reflective original can be used. The original can be easily created by a color copy or a color printer. Therefore, the display contents can be easily and inexpensively exchanged.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the display device according to the present invention will be described with reference to the drawings. As shown in the plan view of FIG. 1, the display device includes a curved aluminum substrate 1 having a curved surface, and a substrate 1.
A transparent plate 2 that adheres to the substrate with the same curved surface as
A fluorescent lamp 3 as a light source provided at the end of
An original 4 on which display contents are drawn is placed between the substrate 1 and the transparent plate 2. The substrate 1 only needs to have a curved surface on which the document 4 is supported. No fluorescent film is formed on the side surface of the fluorescent lamp 3 on the transparent plate 2 side, and the fluorescent lamp 3 is transparent, and light emitted from the fluorescent lamp 3 directly enters the transparent plate 2 through the transparent body 31 without passing through the fluorescent film. . A reflector 5 is provided on the back surface of the fluorescent lamp 3, and the light of the fluorescent lamp 3 is efficiently used for illumination.

The light source 3 may be provided at any end of the transparent plate 2. To increase the illuminance, the fluorescent lamps 3 are provided on the upper and lower sides or on both sides.

The material of the transparent plate 2 and the transparent body 31 is preferably acrylic resin, polycarbonate, or polystyrene having excellent transparency. The bending strength of these transparent resin materials is as follows: acrylic resin: 500 to 1300 kgf / cm ² ,
Polycarbonate: around 950 kgf / cm ² , Polystyrene: 210-980 kgf / cm ²
Large format can be created without the need for reinforcement.

Examples of the flexible transparent plate 2 include flexible acrylic resins such as polymethyl methacrylate and polyethyl methacrylate, which are resin materials having high transparency, and acrylic copolymers such as epoxy acrylate and urethane acrylate; Transparent silicon rubber or the like, in particular, the refractive index of light is 1.3 to 1.5, and the bending strength is 50 kgf / cm.
A silicone rubber of ² or less is preferred.

The light source 3 is a fluorescent lamp or an arrangement of a plurality of incandescent lamps. Similarly light emitting diodes,
Various light sources, such as a neon tube, can be used. Since the light source has a service life, make it easy to replace
Labor saving replacement work. In the case of a fluorescent lamp, if the fluorescent lamp is a cassette type in which the fluorescent lamp is set in advance and the light source can be replaced simply by attaching the cassette to the end of the transparent plate 2, the plug of the fluorescent lamp is inserted into the receptacle and rotated and fixed. Work can be omitted, and the replacement work can be performed quickly.

[0013]

According to the display device of the present invention, since the substrate has a curved surface, the light emitted from the light source repeatedly reflects in the transparent plate to irradiate the entire surface, and the direct light reaches the entire display surface. Therefore, it is possible to use a reflective document, that is, a document printed using a computer or a color copy on a normal sheet, even though it is a thin display device using surface light emission.

[Brief description of the drawings]

FIG. 1 is a plan sectional view of a display device of the present invention.

[Explanation of symbols]

 1 substrate 2 transparent plate 3 light source (fluorescent lamp) 4 original

Claims (2)

[Claims] 1. A display device comprising a curved substrate having a curved surface, a transparent plate having a curved surface provided on an upper surface thereof, and a light source provided at an end of the transparent plate. 2. The display device according to claim 1, wherein the light source is detachable.