JPH08184471A - Displaying board for instrument - Google Patents

Abstract

PURPOSE: To provide a displaying board for instrument which displays data in an easily visible form by improving the visibility of its displaying sections so that the visibility can be maintained in an excellent state day and night even when the ambient brightness changes and the visibility of important displaying sections can be improved at dusk, etc. CONSTITUTION: A ground color section 5 is formed on the surface of a transparent substrate 1 composed of a resin material containing a luminous pigment by providing a dark-colored opaque layer 4 except displaying sections 2, 2A, and 2B composed of scale divisions and numerical characters. The thickness of the substrate 1 is set by providing projecting sections 6, 6A, and 6B or recessed sections on the rear surface of the substrate 1 at the positions corresponding to the displaying sections 2, 2A, and 2B.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an instrument display board used for instruments such as automobiles.

[0002]

2. Description of the Related Art FIG. 4 shows a sectional structure of a conventional display panel.
In the figure, the light emitted from the display parts 2, 2A, 2B such as scales, numbers, and display units on the surface of the substrate 1 made of a colorless and transparent resin material is excited by absorbing the ultraviolet light in the outside light (sunlight) and emitted. Is hard to see in bright places, but visible in dark places,
A luminous type luminous layer 3 which is a transparent ink of, for example, a pale yellowish green color and does not contain radioactive substances is formed by printing, and display portions 2 and 2A showing scales and numbers are further formed by the luminous type luminous layer 3 in order to increase the luminous amount. After performing the overprinting once or twice, the black impermeable layer 4 is provided by printing on the entire area excluding the display portions 2, 2A and 2B to form the ground color portion 5.

When the driver reads the display portions 2, 2A, 2B of such a display board, outside light (sunlight) is seen in the daytime.
By the display part 2, 2A, 2 formed by the luminous type luminous layer 3
B can be visually recognized, and in a dark environment such as dusk, a cloudy day, or a temporary dark place, the luminous type night-light layer 3 emits a light yellow green color. , 2B are visible. At this time, the display portions 2 and 2A showing the scale and the numbers on which the luminous type luminous layer 3 is overprinted have higher emission brightness than other display portions 2B such as display units, and the display showing the scales and the numbers desirable for safe driving. Since the parts 2 and 2A are visually recognized with priority over the other display parts 2B, the display plate is easy to see. Further, at night, an illumination lamp (not shown) arranged behind the display plate is turned on to display the display portions 2, 2A, 2B formed of the luminous type night-light layer 3 in a light yellow green color.

[0004]

However, the display plate is a colorless and transparent substrate, and a phosphorescent type luminescent layer for forming a display portion such as scales, numbers and display units is slightly wider than the display portion, for example, the scale. The width and the length of each are printed a little wider, respectively, and the scale and the display portion showing the numbers are similarly overprinted thereon. After that, the black impermeable layer is printed to form the ground color part except all the display parts. Therefore, the phosphorescent night-light layer that was overprinted in multiple layers was thick, and the black impermeable layer that was printed after that was difficult to stick around the phosphorescent night-light layer, causing ink shortage, and was placed behind the display plate at night. When the illumination lamp is turned on, there is a problem that the transmitted light leaks from the cut of the black impermeable layer forming the background color portion. In addition, there were large steps due to printing, and there was also the aspect that the design was unsightly, especially in the daytime.

The present invention has been made in view of the above-mentioned points, and it is possible to obtain good visibility of the display unit even if the brightness of the surroundings changes throughout the day and night, and to maintain the quality and the design without sacrificing the dusk. An object of the present invention is to provide a display panel for an instrument that is easy to see by enhancing the visibility of a display section that should be preferentially viewed at the time.

[0006]

In order to solve the above-mentioned problems, the present invention provides a display unit comprising a light-transmissive substrate made of a resin material containing a phosphorescent pigment, and a scale, numbers, etc. formed on the surface of the substrate. And a ground color part formed of a dark-colored non-transmissive layer provided on the surface of the substrate excluding the display part, and a convex part integrally provided with the substrate on at least the back surface of the substrate corresponding to the display part. Or an instrument display board in which the board thickness is set by the recess. In addition, the instrument display plate, in which a white transmissive reflective layer is provided on at least the back surface of the substrate corresponding to the display section.

[0007]

[Function] The light emission amount is increased and light emission luminance is increased at the substrate portion where the plate thickness is thick due to the convex portion, and the light emission luminance is suppressed at the substrate portion where the plate thickness is thin due to the recess portion so that the light emission luminance is suppressed. The emission brightness of the section is arbitrarily set, and an easy-to-see instrument display plate can be obtained.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described based on each embodiment, but the same or corresponding portions as those of the conventional example are designated by the same reference numerals. FIG.
2 shows a first embodiment of the present invention, in which, for example, a light-transmissive substrate 1 made of a resin material containing a phosphorescent pigment has a display portion 2, such as scales, numbers, and display units, on the surface of the light-transmissive substrate 1. Two
A black impermeable layer 4 is provided by printing on the entire area excluding A and 2B to form a ground color portion 5. Then, convex portions 6, 6A, 6B are provided integrally with the substrate 1 on the back surface of the substrate 1 corresponding to the display portions 2, 2A, 2B, respectively. This time,
The convex portion 6B corresponding to the display portion 2B indicating the display unit is the convex portion 6 or 6A corresponding to the display portion 2 or 2A indicating the scale and the number.
It is formed lower.

In such an instrument display board, when the driver reads the display on the instrument display board, in a bright environment such as daytime, a pale yellowish green color formed of a resin material containing a phosphorescent pigment by external light. The display portions 2, 2A, 2B of are visible.

In a dimly lit environment such as at dusk, since the display portions 2, 2A and 2B are made of a resin material containing a light yellow green phosphorescent pigment, the display portions 2, 2A and 2B emit a light yellow green light. It becomes visible. At this time, since the convex portions 6 and 6A corresponding to the display portions 2 and 2A indicating the scales and numbers are higher than the convex portion 6B corresponding to the display portion 2B indicating the display unit, that is, the board 1 is thick, the daytime In this case, the amount of stored light due to the external light is increased, and thus the emission brightness is higher than that of the display unit 2B showing the display unit.

In a dark environment such as at night,
By lighting an illumination lamp (not shown) disposed behind the instrument display plate, the light yellow green display portions 2, 2A, 2B formed of a resin material containing a phosphorescent pigment are transparently displayed in light yellow green. To do.

As described above, in this embodiment, the black impermeable layer 4 is provided on the surface of the substrate 1 made of a resin material containing a phosphorescent pigment except for the display portions 2, 2A and 2B such as scales, numbers and display units. To form the ground color portion 5 on the back surface of the substrate 1 corresponding to the display portions 2, 2A, 2B, and the convex portions 6, 6A, 6B integrally with the substrate 1.
By providing each of them, it is possible to increase the amount of stored light without providing a light-storing type night-light layer, and there is no possibility of running out of ink or printing steps caused by printing.

Further, display units 2 and 2 showing scales and numbers
Since the heights of the convex portions 6 and 6A corresponding to A are made higher than those of the other convex portions 6B, the amount of light accumulated during the daytime increases, and the scales and numeral display portions 2 and 2A that are preferentially viewed at dusk etc. Since it emits light brighter than the display section 2B, the instrument display plate is easy to see.

FIG. 3 shows a second embodiment of the present invention.
For example, a display portion 2C showing a scale every 10 km / h and a display portion 2D showing a scale every 5 km / h on the surface of a light-transmissive substrate 1 made of a resin containing a phosphorescent pigment, for example, a numeral and a display. A black impermeable layer 4 is provided by printing on the entire area excluding the display portions 2A and 2B indicating units and the like, and a ground color portion 5 is formed. Then, on the back surface of the substrate 1 corresponding to the display portions 2C, 2D, 2A and 2B, the convex portions 6C and 6 are integrally formed with the substrate 1.
D and 6A and the concave portion 7 are provided respectively. At this time, the convex portion 6D provided on the back surface of the substrate 1 corresponding to the display portion 2D showing the scale every 5 km / h has the display portion 2 showing the scale and the number every 10 km / h.
It is formed lower than the convex portions 6C and 6A corresponding to C and 2A. Then, a transmissive reflective layer 8 made of a white transmissive coating is provided on the entire back surface of the substrate 1 by coating.

In such an instrument display panel, when the driver reads the display on the instrument display panel, in a bright environment such as daytime, as in the first embodiment, a resin containing a phosphorescent pigment by external light is used. The light yellowish green display portions 2C, 2D, 2A, and 2B formed of the material can be visually recognized.

In a dimly lit environment such as at dusk, the display units 2C, 2D, 2 are arranged similarly to the first embodiment.
Since A and 2B are resin materials containing a light yellowish green phosphorescent pigment, the display portions 2C, 2D, 2A and 2B emit light in a light yellowish green color and are visible. At this time, the convex portions 6C and 6A corresponding to the display portions 2C and 2A showing the scale and the numbers every 10 km / h are the highest, and the convex portion 6D corresponding to the display portion 2D showing the scale every 5 km / h is the highest. The next highest position, which corresponds to the display unit 2B indicating the display unit, is the recess 7, and thus the substrate 1 has the smallest plate thickness. Therefore, the amount of stored light due to external light during the daytime is also different, and the emission brightness of the display unit 2D showing the scale every 5 km / h is higher than that of the display unit 2B showing the display unit.
The emission brightness of the display unit 2C showing the scale every 10 km / h and the display unit 2A showing the numbers is higher than that of D.

In a dark environment such as at night,
By lighting an illumination lamp (not shown) arranged behind the instrument display plate, the display portions 2C, 2D, 2A, 2B are made of a resin material containing a phosphorescent pigment and a white transparent material provided on the back surface of the substrate 1. Transmissive display is performed in a mixed color (white-based light yellowish green) with the reflective layer 8.

With this configuration, this embodiment can also obtain the same effect as that of the first embodiment. In addition, since the white transmissive reflective layer 8 is provided on the entire back surface of the substrate 1, the external light entering the substrate 1 is reflected by the transmissive reflective layer 8 during the daytime and each display unit during the daytime. Has good visibility.
Further, the transmissive reflective layer 8 allows the substrate 1
Since the external light that has entered the inside is less likely to pass through to the back surface side of the substrate 1, the amount of accumulated light increases, and the light emission luminance increases during dusk and the like, and good visibility is obtained.

In this embodiment, the white transmissive reflective layer is provided over the entire back surface of the substrate, but it may be provided only on the back surface of the substrate corresponding to the display section.

The present invention is not limited to the above-described embodiments. For example, in the case of a thick substrate, the size of the recess may be formed stepwise or the thin substrate may be formed in accordance with the thickness of the substrate. In this case, the plate thickness of the substrate is appropriately set according to the display part that is desired to be viewed preferentially in the dusk, for example, by forming the convex part in stages and by combining the concave part and the convex part in the middle plate thickness dimension. Just set it. Further, the convex portion or the concave portion may be provided not only on each scale or on each number but continuously provided, for example, over a necessary range.

[0021]

Industrial Applicability The present invention provides a light-transmissive substrate made of a resin material containing a phosphorescent pigment, a display portion formed on the surface of the substrate, including scales and numbers, and the substrate excluding the display portion. A background color portion formed of a dark-colored non-transmissive layer provided on the front surface, and the plate thickness of the substrate is set by at least a convex portion or a concave portion integrally provided with the substrate on the back surface of the substrate corresponding to the display portion. As a result, there is no possibility of running out of ink or printing steps caused by overprinting the display portion, and quality and designability are not impaired. Further, since it is possible to increase the light emission brightness of the display section to be preferentially viewed at dusk, it is possible to obtain an easy-to-see instrument display plate. In addition, since the white transmissive reflective layer is provided on at least the back surface of the substrate corresponding to the display section, the visibility of the display section is good during the daytime and twilight.

[Brief description of drawings]

FIG. 1 is a front view of an instrument display plate showing a first embodiment of the present invention.

FIG. 2 is a partial cross-sectional view of an instrument display board showing the same embodiment.

FIG. 3 is a partial cross-sectional view of an instrument display plate showing a second embodiment of the present invention.

FIG. 4 is a partial cross-sectional view of a conventional instrument display plate.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Substrate 2, 2A, 2B, 2C, 2D Display part 4 Non-transmissive layer 5 Ground color part 6, 6A, 6B, 6C, 6D Convex part 7 Recessed part 8 Reflective layer

Claims (2)

[Claims] 1. A light-transmissive substrate made of a resin material containing a phosphorescent pigment, a display portion including scales and numbers formed on the surface of the substrate, and a surface of the substrate excluding the display portion. And a background color part consisting of a dark color impermeable layer,
An instrument display board, characterized in that the thickness of the board is set at least by a convex portion or a concave portion provided integrally with the substrate on the back surface of the substrate corresponding to the display portion. 2. The instrument display board according to claim 1, wherein a white transmissive reflective layer is provided on at least the back surface of the substrate corresponding to the display section.