JP3026262B1 - Display board - Google Patents

Abstract

The present invention provides a novel display device by largely changing a display mode between when a light source is turned on and when a light source is turned off, and also provides a display panel that can express a finer display in the display mode. . SOLUTION: An offset printing section 3 composed of a plurality of colored layers is provided on a translucent substrate 2, and the offset printing section 3 forms a display composed of characters, scales, symbols and the like and a background surrounding the display. . Offset printing unit 3
Is provided on the front surface side of the substrate, and is formed so as to cover the offset printing portion 3. A light source 6 is provided on the rear side of the translucent substrate 2, and the offset printing unit 3 is transmitted and illuminated by turning on the light source 6. At this time, due to the effect of the smoke layer 5, the display and the background are not visible when the light source is off, but the display and the background are transmitted and illuminated when the light source is on. An image can be displayed, and a display mode can be greatly changed between when the light source is turned on and when the light source is not turned on.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmissive illumination type display panel used as an instrument for an automobile or a motorcycle, for example.

[0002]

2. Description of the Related Art A display plate A used for an instrument such as an automobile or a motorcycle generally has a transparent substrate B as shown in FIG.
By providing a black light-shielding layer D while leaving a display C of predetermined characters, scales, symbols, and the like, only the display C is provided so as to be transmissible, and a light source E is provided behind the light-transmitting substrate B. In some cases, the display C is transmitted and illuminated when E is lit.

According to the display panel A, a light-transmitting layer F made of, for example, white is provided between the light-transmitting substrate B and the light-shielding layer D. In addition, the white light-transmitting layer F is visually recognized at a display location where there is no light-shielding layer D, and the white display C is visually recognized against the black background formed of the light-shielding layer D.

Further, when the light source E is in a lighting state, a portion corresponding to the light-shielding layer D is visually recognized as a black background, and only a display C portion without the light-shielding layer D is viewed from the light source E provided on the back surface. Is transmitted and illuminated through the white light-transmitting layer F.

[0005]

As described above, when the light source is turned on and when the light source is not turned on, there is no difference in the relation that the display C in white characters is visually recognized against the background in black characters, and there is no significant difference in the display form. Therefore, it lacked novelty.

The display C is formed by forming a light-shielding layer D on a light-transmitting substrate B by screen printing, thereby forming the display C as a portion having no light-shielding layer D. The display C is limited to monotonous characters such as linear characters and marks.

In other words, screen printing has a resolution limit depending on the mesh density of the screen.
However, there is a demand for products having freely designed shapes and colors, but at present, it is becoming impossible to meet such requirements by screen printing.

Therefore, the present invention provides a novel display panel by greatly changing the display mode between when the light source is turned on and when it is not illuminated, and also provides a display panel capable of expressing a finer display in the display mode. It is intended to provide.

[0009]

Means for Solving the Problems The present invention for achieving the above object, forms set <br/> fit allowed character combination from a plurality of colored layers on a transparent substrate, the scale, the display and the background of the symbols, etc. An offset printing section is provided, the offset printing section is provided so as to be able to be transmitted and illuminated by turning on a light source provided behind the translucent substrate, and a smoke layer covering the entire front side of the offset printing section is provided. It is a thing.

Also, screen printing is performed on a translucent substrate.
Forming a light-shielding layer, and forming a light-shielding layer on a part of the light-transmitting substrate;
Provided permeable portion without the layer, the permeable combination of a plurality of colored layers portion is provided offset printing unit for forming a predetermined image, the offset printing by lighting of the light source provided behind the light-transmitting substrate And a smoke layer for covering the front side of the offset printing section.

Further, a metallic layer is provided in place of the smoke layer.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A translucent substrate is provided with a plurality of colored layers, for example, an offset printing section composed of a combination of four colors of yellow, magenta, cyan, and black. And a background surrounding the display. Then, a dark-colored smoke layer is provided on the front side of the offset printing section, and is formed so as to cover the offset printing section. A light source is provided on the back side of the translucent substrate, and the offset printing unit is illuminated by transmission of the light source. At this time, due to the effect of the smoke layer, the display and the background are not visible when the light source is off, but the display and the background are transmitted and illuminated when the light source is on, so that a fine transmission image by offset printing can be obtained. Can be made to appear, and the display mode can be greatly different between when the light source is turned on and when the light source is not turned on.

For example, when the present invention is adopted as a warning display section, a transmissive section having no light-shielding layer is provided on a part of the translucent substrate, and the transmissive section is combined with a plurality of colored layers. The offset printing portion is provided, a light source is provided behind the translucent substrate, the offset printing portion is provided so as to be able to be illuminated by turning on the light source, and a smoke layer is provided to cover the front side of the offset printing portion. By configuring the board, it is usually invisible,
Light emission can be performed only when there is an abnormality or when necessary, and a predetermined fine display can be performed.

Further, in the present invention, by providing a metallic layer instead of the smoke layer on the front side of the offset printing section, the same operation and effect as in the embodiment using the smoke layer can be obtained.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIGS. 1 and 2 show a first embodiment of the present invention, in which a display panel 1 is formed by combining a plurality of colored layers, for example, four colors of yellow, magenta, cyan, and black, on a transparent substrate 2. A translucent offset printing section 3 is provided, and the offset printing section 3 forms a display including characters, scales, symbols, and the like, and forms a background pattern and ground color. According to the offset printing unit 3, since a higher resolution can be reproduced as compared with screen printing,
It can form a fine gradation pattern, a woodgrain pattern, a metal pattern, a stone pattern, and a fine image such as a photograph on a display panel.

In offset printing, for example, a predetermined image is decomposed into a plurality of color components by image processing, printing plates for each of a plurality of colors are prepared, and the coloring layers are sequentially applied to the light-transmitting substrate using the plates. By forming these layers, it is possible to reproduce rich and precise images by synthesizing these colored layers.By applying this offset printing technology to a display panel such as an instrument, By using not only characters, graduations and symbols but also fine image reproducibility that has never existed in the past, it is possible to produce, for example, colorful gradation patterns and ground color images such as photographs on the display panel, An excellent display board can be provided.

A white light-transmitting layer 4 is formed between the offset printing portion 3 and the light-transmitting substrate 2 by, for example, screen printing, and the white light-transmitting layer 4 is formed on the back side of the offset printing portion 3. By the formation of 4, the color of the offset printing portion clearly appears when the light source is turned on, which will be described later.

In the present invention, a dark smoke layer 5 is formed on the surface side of the offset printing section 3.
In this embodiment, the smoke layer 5 is formed by performing thin black printing by screen printing. However, by using a black coloring layer which is a part of the offset printing portion 3, the smoke layer 5 is formed. May be formed.

A light source 6 is provided on the rear side of the translucent substrate 2.
Approximately the entire surface of the display panel 1 including the display and the background is transmitted and illuminated. At this time, due to the effect of the smoke layer 5, the display and the background are not visible when the light source is off (FIG. 2).
(See FIG. 2A.) When the light source is turned on, the display of numbers and scales and the background are illuminated by transmission (see FIG. 2B). As described above, the display mode can be largely changed between the light source non-lighting state and the light source lighting state.

FIG. 3 and FIG. 4 show a second embodiment of the present invention, in which the scales and numerals are formed as a display 8 without a light-shielding layer 7 on a light-transmitting substrate 2, and a display plate 1 is formed. Only the central portion of the display panel 9 is configured as the display 9 by the offset printing unit 3, and shows an example of the display panel 1 in which a screen printing area and an offset printing area are mixed.

That is, the display 8 such as a numeral and a scale is formed as a blank portion having no light-shielding layer 7 formed by black screen printing, and the light-shielding layer 7 is not provided at the center of the display panel 1. The transmissive section 10 is provided, and the offset printing section 3 is provided in the transmissible section 10 to constitute the display 9 composed of a predetermined color image.

The light-shielding layer 7 and the offset printing section 3
By providing the white light-transmitting layer 4 between the light-transmitting substrate 2 and the light-transmitting substrate 2, the display 9 including the offset printing portion 3 has no effect of clearly coloring the offset printing portion 3 when the light source is turned on. In a portion corresponding to the display 8 of numbers and scales, when the light source is not lit, the display 3 consisting of numbers and scales is made to appear white.

In the present invention, a smoke layer 5 is provided on the front side of the offset printing section 3. The smoke layer 5 is formed in the same manner as in the first embodiment, and is disposed so as to overlap with the light-shielding layer 7 so that the boundary between the offset printing unit 3 and the light-shielding layer 7 stands out. It is difficult to create a sense of unity on the front side of the display panel 1.

According to the present configuration, the display 8 that wants to clearly display light and darkness such as graduations and numbers is constituted by screen printing with high light-shielding property, and light and dark are not so important but a fine image with high resolution is displayed. The required display 9 can be constituted by offset printing.

In addition, it is possible to reduce the cost by configuring the normal display portion by inexpensive screen printing and forming only the portion requiring a fine image by the relatively expensive offset printing portion. There is also.

A light source 6 is provided on the back side of the translucent substrate 2. By turning on the light source 6, a display 8 such as a character or a scale can be displayed by screen printing so as to make the contrast clear. In addition, the display 9 formed by the offset printing unit 3 enables a high-resolution and fine display. At this time, due to the effect of the smoke layer 5 provided on the front surface of the display composed of the offset printing section 3, the display composed of the offset printing section 3 is not visible when the light source is not lit (see FIG. 4A). In the lighting state, the display is transmitted and illuminated, and a predetermined color image appears (see FIG. 4B). As described above, the display mode can be largely changed between the light source non-lighting state and the light source lighting state.

FIGS. 5 and 6 show a third embodiment of the present invention. For example, in a vehicle instrument or the like, a warning display section for warning or notifying a vehicle abnormality or the operation of a predetermined function is provided. It shows an example employing the invention.
Transmissive portion 10 having no light-shielding layer 7 on a part of light-transmitting substrate 2
Is provided on the transmissive portion 10, and an offset printing portion 3 formed by combining a plurality of coloring layers is provided. The offset printing portion 3 forms a predetermined color image. Also,
A light source 6 is provided behind the translucent substrate 2, and the offset printing unit 3 is provided so as to be capable of transmitting illumination by turning on the light source 6. In addition, a white light-transmitting layer 4 is formed between the offset printing unit 3 and the light-transmitting substrate 2 for clearly coloring the offset printing unit 3 for transmission illumination.

In the present invention, the smoke layer 5 is provided to cover the front side of the offset printing section 3, and the smoke layer 5 is formed over the entire display panel 1.

The display panel 1 is provided with a plurality of transmissible portions 10, and each of the transmissible portions 10 forms a color image composed of the offset printing portion 3, and a light source 6.
Is stored in a plurality of compartments 11 so that only the necessary display is displayed by appropriately turning on the light source 6. The display in which the light source 6 is not turned on is not visually recognized due to the effect of the smoke layer 5 provided on the front side of the offset printing unit 3 (see FIG. 6A). The display is transmitted and illuminated only when the light source is turned on, and a predetermined color image appears (see FIG. 6B).

By doing so, it is possible to form a display panel which is normally invisible and emits light only when there is an abnormality or when necessary to display a predetermined display. In the operation explanatory diagram of FIG. 6, an example in which all the displays are turned on or off is shown. However, the display that appears by turning on or off the displays as necessary. It goes without saying that you can select.

Further, in the first and second embodiments of the present invention, the display mode is made different between when the light source is turned on and when the light source is not turned on to obtain a new display panel. , A smoke layer was provided for the purpose of making only necessary displays visible and making unnecessary displays invisible.
By providing a metallic layer in place of the smoke layer, the same effect can be obtained in each of the embodiments described above.

That is, this metallic layer is formed on the front side of the offset printed portion of the display panel by, for example, aluminum evaporation. When the light source is not lit, only the metallic surface is visually recognized due to the effect of the metallic layer, and the display is visually recognized. This is configured so that the display can be visually recognized by transmitting and illuminating the offset printing unit only when the light source is turned on. In this case, by applying the same coloring as the metallic layer to the light-shielding layer in the second embodiment, it is possible to make the boundary between the offset printed portion and the light-shielding layer inconspicuous and to produce a sense of unity as a metallic surface. it can.

The offset printing section 3 in this embodiment has four colored layers, yellow, magenta, cyan,
Although it was constituted by black, a plurality of colored layers may be appropriately selected and formed, or may be constituted by a plurality of colored layers other than these four. In some cases, the same color layer may be printed a plurality of times.

The smoke layer is not limited to black and may be colored such as dark red, dark blue or dark brown.

The white light-transmitting layer provided between the offset printing portion and the light-transmitting substrate can be eliminated by forming the light-transmitting substrate with a white light-transmitting member.

Further, in this embodiment, only the example in which the offset printing section is provided on the front side of the light transmitting substrate is shown, but the offset printing section may be provided on the rear side of the light transmitting substrate. In this case, for example, the light-transmitting substrate may be made of a smoke material colored in a dark color so as to have both the function as the light-transmitting substrate and the function as the smoke layer.

[0037]

As described above, according to the present invention, a new display device is provided by greatly changing the display mode between when the light source is turned on and when the light source is not turned on, and a finer display is expressed in the display mode. A display panel that can be provided.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a display panel according to a first embodiment of the present invention.

FIG. 2 is a front view showing the operation of the first embodiment of the present invention.

FIG. 3 is a cross-sectional view illustrating a display panel according to a second embodiment of the present invention.

FIG. 4 is a front view showing the operation of the second embodiment of the present invention.

FIG. 5 is a sectional view showing a display panel according to a third embodiment of the present invention.

FIG. 6 is a front view showing the operation of the third embodiment of the present invention.

FIG. 7 is a sectional view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Display board 2 Translucent board 3 Offset printing part 4 Light transmissive layer 5 Smoke layer 6 Light source 7 Light shielding layer 8, 9 Display 10 Transmissive part 11 Division room

Claims (3)

(57) [Claims] 1. A combination of a plurality of colored layers on a light-transmitting substrate.
An offset printing section for displaying characters, scales, symbols, etc. and for forming a background, and the offset printing section is provided so as to be capable of transmitting illumination by turning on a light source provided behind the translucent substrate. A display panel provided with a smoke layer covering the entire front side of the offset printing section. 2. Light shielding by screen printing on a light transmitting substrate.
Forming a sexual layer, wherein the permeable portion having no light-shielding layer is provided, provided the offset printing unit for forming a predetermined image combination from a plurality of colored layers on the permeable portion in a part of the translucent substrate A display panel, wherein the offset printing portion is provided so as to be able to be transmitted and illuminated by turning on a light source provided behind the translucent substrate, and a smoke layer covering a front side of the offset printing portion is provided. 3. The display device according to claim 1, wherein a metallic layer is provided instead of the smoke layer.