JPH0116127Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a display board for various instruments such as speedometers, tachometers, and fuel gauges in automobiles, and display boards for displaying frequency, recording level value, and selection status of various switches in audio equipment. , More specifically, it is a display body that guides light from a light source below a convex display section to emit and express a desired display three-dimensionally.

Among the display bodies conventionally attached to automobiles, stereos, information boards, etc., the display bodies that restrict the light emitted from the light source with a plate-like body provided with through holes to display the desired display are: It was a method in which a light bulb was used to illuminate the back of a stencil in which only the characters and patterns desired to be displayed were cut out. However, the display body using this method has the following problems.

When illuminating and displaying characters or patterns scattered over a large area, a large number of lighting bulbs are required, which increases the amount of electrode consumption.

Since it is a method in which light is transmitted through cutouts formed in a plate-shaped body, there is no three-dimensional effect, and only a superficial expression can be achieved.

Due to the heat generated by the light bulb placed behind the display board,
It may have an adverse effect on nearby equipment.

The present invention was developed to solve the problems described above, and its gist is that one surface has at least a convex display part and a concave part, and the other smooth surface has a convex display part and a concave part. A display board is provided with reflective parts at locations facing the recessed parts, and a luminescence promoter is selectively filled only in the convex display part, and a smooth surface is provided on one surface, and a smooth surface is provided on the other side. A backing board comprising at least a convex non-display part, a concave part, and a reflective layer covering the entire surfaces of these parts is arranged so that their smooth surfaces are in contact with each other, and the display part of the display board is and a non-display part of the backing plate, and a reflective part of the display board and a recessed part of the backing plate are attached so as to face one-on-one.

The present invention will be described in detail below with reference to the drawings.

FIG. 1 is an explanatory cross-sectional view of a display body 1 according to the present invention, and 2 has a convex display portion 3 and a concave portion 4 on one surface, and faces the concave portion 4 on the other smooth surface. A display board 10 is provided with at least reflective parts 6 and a luminescence promoter is filled only in the convex display part 3, and has a smooth surface 11 on one surface and a convex surface on the other surface. A backing plate is shown, which is provided with at least a shaped non-display portion 12, a recessed portion 13, and a reflective layer 14 covering these. 18 is a luminescence promoter, 19 is a protective layer, and 20 is a light source.

As can be understood from FIG. 1, the display board 2 is
A smooth surface 5 is provided on one surface, and a display section 3 is provided on the other surface.
and a recessed portion 4, respectively.
It also includes a reflective portion 6 provided at a location facing the recessed portion 4 on the smooth surface 5 of the uneven pattern plate 26. The uneven pattern board 26 is mainly made of resin such as thermoplastic resin or reactive resin such as vinyl chloride resin, acrylic resin, ABS resin, urethane resin, polyethylene, polyester, etc., and only the display part 3 has a light emitting element as described above. A fluorescent substance, pearl powder, glass powder, etc. as a promoter are selectively filled in, and the material may be produced by an intaglio printing method or a screen printing method. In producing the uneven pattern board 26, if an intaglio printing method is used, an intaglio printing plate in which only the cells forming the display area are deeper is used, and a screen printing method is used. In this case, it is necessary to overprint only the display part containing the luminescence promoter, and to raise the display part 3 higher than the recess 4.

On the other hand, the reflecting portion 6 may be formed of a material that reflects a high percentage of visible light, and specifically, it is provided by partially attaching aluminum foil or partially vapor depositing aluminum. (See Fig. 1) Also, as can be understood from the drawing, the backing plate 10 has a smooth surface 10 on one side, and a convex hidden portion 12 and a concave portion 13 on the other side. At least a concavo-convex pattern plate 24 and a reflective layer 14 covering the entire surfaces of the non-display portion 12 and the recessed portions 13 of the concavo-convex pattern plate 24 are provided. The uneven pattern board 24 is made of vinyl chloride resin, acrylic resin,
It may be produced by an intaglio printing method or a screen printing method using a resin such as a thermoplastic resin such as ABS resin, urethane resin, polyethylene, or polyester, or a reactive resin. Further, the reflective layer 14 may be formed of a material that has a high rate of reflecting visible light, and specifically, the reflective layer 14 may be formed of a material that reflects visible light at a high rate. Provided by vapor deposition or by laminating aluminum foil.

A protective layer 19 is provided on this reflective layer 14 as necessary.
may be formed.

Display board 2 and backing board 10 formed in this way
are the respective smooth surfaces 5 and 1 as shown in FIG.
1 and in contact with the display part 3 of the display board 2.
and the non-display part 12 of the backing board 10, and furthermore, the reflective part 6 of the display board 2 and the recessed part 13 of the backing board 10 are attached so as to face one-on-one, thereby forming the display body 1 according to the present invention. . Therefore, the reflective layer 6 and the recessed portions 13 of the backing plate 10 also face each other one-on-one with the uneven pattern plate 24 in between. With this configuration, the light source 20
The light emitted from the is guided into the uneven pattern board 24 while being reflected by the reflective part 6 and the reflective layer 14, reaches each display part 3, and displays only the desired characters or patterns according to the shape of the display part 3. Lights up and displays in three dimensions.

Note that the luminescence promoter 18 referred to in the present specification refers to fine particles that emit secondary light or cause light scattering when irradiated with light, and are particles that are reflected by the reflective portion 6 and the reflective layer 14. However, even if the light that is guided into the uneven pattern plate 24 and reaches the bottom of the display section 3 is weak, it can function sufficiently as light for emitting and displaying the display section 3. This is used so that the meat display section 3 emits light on its wall surface and top and stands out three-dimensionally from the recessed section 4 around it.

Because of the above-described configuration, the present invention has the following effects compared to conventional display bodies.

The characters and patterns to be displayed are formed on a convex display section, and since this display section is filled with a luminescence enhancer such as fluorescent material, pearl powder, and glass powder, it does not reflect on the reflective section or layer. Even the weak light that is guided by the LED lights can be displayed effectively on the display.
Moreover, it is possible to display a display with a rich three-dimensional effect based on the light emission of the luminescence promoter contained only in the convex display portion.

Even when the display area is large or the display areas are scattered over a wide area, the display section can efficiently emit light and display with a single light source.

Since the display part has a convex shape corresponding to the characters and patterns to be displayed, even people who are visually impaired and cannot read Braille can recognize the displayed content by memorizing the convex shape.

[Brief explanation of the drawing]

FIG. 1 is an explanatory cross-sectional view of a display body according to the present invention, and FIG. 2 is an explanatory diagram of a schematic configuration of an apparatus for manufacturing a display body. 1... display body, 2... display board, 3... display section,
4, 13... recess, 5, 11... smooth surface, 6...
Reflective part, 10... Backing plate, 12... Non-display part,
14... Reflective layer, 30, 31... Gravure cylinder, 32... Aluminum partially vapor deposited polyester film, 35... Aluminum vapor deposited polyester film, 36... Cold air blowing nozzle.

Claims (1)

[Scope of utility model registration request] One surface has at least a convex display section and a concave section, and the other smooth surface has a reflective section facing the concave section, and a luminescence promoter is selected only for the convex display section. A backing comprising at least a display board with a flat surface embedded therein, a smooth surface on one side, a convex non-display area and a recess on the other side, and a reflective layer covering all of these surfaces. so that their smooth surfaces are in contact with each other, and the display part of the display board and the non-surface part of the backing board, as well as the reflective part of the display board and the recessed part of the backing board, face one-on-one. A display body characterized by being affixed to.