JP2004094102A - Display - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display that can achieve inexpensive manufacturing costs and make a design surface look more attractive. <P>SOLUTION: The display has at least first and second mark sections 22, 26. At the first mark section 22, there are a translucent substrate 32 being illuminated with light from a back side by a light source 14, a shielding surface layer 18 that is provided at the front side of the substrate 32 and forms an opening in a shape such as cut out figures at a specific position, and a highly bright translucent design layer 20 that is formed between the substrate 32 and the surface layer 18, and the design layer 20 is exposed from the opening of the surface layer 18. At the second mark section 26, a translucent colored layer 24 in a specific color is formed inside the opening of the surface layer 18. The substrate 32 is colored in a specific color where desired lighting color for illuminating the first mark section 22 with light can be obtained and a thin section 34 is provided at a position corresponding to the second mark section 26 for the substrate 32. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a display device used for a display panel of a heater control device mounted on a vehicle, for example.
[0002]
[Prior art]
[Patent Document 1]
None [0003]
2. Description of the Related Art Conventionally, a display panel of a heater control device 10 mounted on a vehicle or the like as shown in FIG. 3 illuminates a plurality of marks (numbers, characters, patterns, etc.) of different colors with a single light source. It has been known.
[0004]
FIG. 4 shows an enlarged partial cross section of the display panel 12 of the heater control device 10. The display panel 12 has a light-transmitting substrate 16 which is a transparent synthetic resin molded product in which white light is illuminated from the back side by a light source 14, and is provided on the front surface side of the substrate 16, and a numeral or a numeral is provided at a predetermined position. A light-shielding surface layer 18 made of, for example, a black printing layer having openings in the form of cutout characters or patterns, and a lightness made of, for example, a white printing layer formed between the substrate 16 and the surface layer 18 are provided. A high-color semi-transparent design layer 20 is provided.
[0005]
The surface layer 18 has a first mark portion 22 from which the design layer 20 is exposed through an opening having a shape such as a number, a character, or a pattern, and a predetermined mark such as blue, red, or orange in the opening of the surface layer 18. And a second mark portion 26 on which a semi-transparent colored layer 24 of color is formed.
[0006]
In the display panel 12 configured as described above, the first mark portion 22 looks white as the color of the design layer 20 exposed from the opening during the daytime when the light source 14 is not lit, At the time of lighting, it is illuminated in white by the light of the light source 14 transmitted through the design layer 20. In addition, the second mark portion 26 looks red, for example, which is the color of the colored layer 24 formed in the opening during the daytime when the light source 14 is not lit, and transmits through the colored layer 24 when the light source 14 is lit. The light from the light source 14 is illuminated in red, for example.
[0007]
As described above, the first mark portion 22 usually looks like the color of the design layer 20 (that is, white) regardless of whether the light source 14 is turned on. However, depending on the display panel, the first mark portion 22 is moved to the design layer during daytime. There are some which appear as 20 colors but are illuminated with another color (for example, red) when the light source is turned on.
[0008]
As described above, as a method of changing the color of the first mark portion 22 between when the light source is not turned on and when the light source is turned on, the first light source 14 may be covered with a colored silicon cap or the substrate 16 may be colored. There is a method of coloring the illumination light transmitted through the mark portion 22 of FIG. However, according to this method, when the colored illumination light is a dark color such as red, for example, the second mark portion 26 is illuminated via the colored layer 24 by the dark color illumination light, so There has been a problem that the luminance is reduced and a desired color tone and luminance cannot be obtained for the second mark portion 26.
[0009]
In order to change the color of the first mark portion 22 between when the light source is not lit and when it is lit without causing such a problem, a display panel 13 having a configuration as shown in FIG. Was. The configuration of the display panel 13 is different from the above-described display panel 12 in that, for example, a red illumination coloring printing section 28 is provided between the substrate 16 and the design layer 20 at a position corresponding to the first mark section 22. Only. By providing the illumination coloring section 28 in this manner, the white illumination light from the light source 14 is colored red by transmitting through the illumination coloring printing section 28, so that the first mark section 22 is illuminated red when the light source is turned on. Will be done. On the other hand, the second mark portion 22 is illuminated with a desired color tone and luminance because the illumination light from the light source 14 is white.
[0010]
[Problems to be solved by the invention]
However, in the display panel 13 having the configuration shown in FIG. 5, the number of printing steps for forming the illumination coloring printing section 28 increases by one, so that the manufacturing cost increases accordingly, and the first provision of the illumination coloring printing section 28 increases There is a problem that the mark portion 22 of the mark rises and the appearance of the design surface deteriorates.
[0011]
[Means for Solving the Problems]
Therefore, in order to solve the above-mentioned problem, the present invention provides a light-transmitting substrate illuminated from the back side by a light source, and a shape of a number, a letter, or a pattern provided at a predetermined position provided on the front side of the substrate. A light-shielding surface layer in which an opening is formed, and a semi-transparent design layer of a color having a high brightness formed between the substrate and the surface layer are provided,
At least a first mark portion in which the design layer is exposed from an opening in the surface layer, and a second mark portion in which a semi-transparent colored layer of a predetermined color is formed in the opening in the surface layer Display device,
The substrate is colored in a predetermined color to obtain a desired illumination color for illuminating the first mark portion, and a thin portion or a through hole is provided on the substrate at a position corresponding to the second mark portion. It is characterized by the following.
[0012]
In the display device having such a configuration, the first mark portion looks like the color of the design layer in the daytime when the light source is not lit, while the illumination light from the light source transmits through the colored substrate when the light source is lit. As a result, a desired color different from that of the design layer appears by being illuminated with the colored illumination light. Further, the second mark portion is illuminated with the color of the colored layer because the illumination light from the light source is hardly or not colored even if it passes through the thin portion or through hole of the colored substrate, There is no effect on the color tone or brightness when the second mark portion is illuminated.
[0013]
Therefore, according to the display device of the present invention, it is not necessary to provide the illumination coloring printing portion for the first mark portion between the substrate and the design layer as in the display panel described with reference to FIG. The manufacturing cost can be reduced by eliminating one printing step, and the swelling of the first mark portion can be eliminated, so that the appearance of the design surface can be improved.
[0014]
In the display device according to the aspect of the invention, it is preferable that the hue of the substrate be dark.
When the hue of the substrate is dark, the effect of suppressing discoloration of light transmitted through the thin portion or the through hole of the substrate becomes more remarkable.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is an enlarged partial cross-sectional view of a display panel 30 which is an embodiment of the display device of the present invention. The display panel 30 is used for the heater control device 10 mounted on a vehicle or the like as shown in FIG.
[0016]
The display panel 30 includes a light-transmitting substrate 32, which is, for example, a synthetic resin molded product from which a white light is illuminated from the back side by the light source 14, and a surface provided on the surface of the substrate 32. A light-shielding surface layer 18 formed of, for example, a black print layer having openings in the form of characters or a cut pattern, and a high brightness formed of, for example, a white print layer formed between the substrate 32 and the surface layer 18 is high. A semi-transparent design layer 20 of a color is provided.
[0017]
The surface layer 18 has a first mark portion 22 where the design layer 20 is exposed from an opening having a shape such as a number, a character, and a pattern, and a predetermined mark such as blue, red, or orange in the opening of the surface layer 18. And a second mark portion 26 on which a semi-transparent colored layer 24 of a color is formed by printing.
[0018]
The substrate 32 is colored in a predetermined color (for example, red) so that a desired illumination color for illuminating the first mark portion 22 can be obtained. The hue of the substrate 32 is preferably a dark color such as red or blue. The substrate 32 is provided with a thin portion 34 at a position corresponding to the second mark portion 26.
[0019]
In addition, as shown in FIG. 2, a through hole 36 may be provided in the substrate 32 instead of the thin portion 34. In this case, since the design layer 20 cannot be printed in the through hole 36, a transparent film 38 may be provided on the substrate 32, and the design layer 20 may be printed thereon.
[0020]
In the display panel 30 having the above-described configuration, the first mark portion 22 looks white in the design layer 20 in the daytime when the light source 14 is not turned on, while the illumination light from the light source 14 is turned on when the light source 14 is turned on. The color of the design layer 20 looks red different from the color of the design layer 20 by being illuminated with the colored illumination light because the substrate is colored red by transmitting through the substrate 32 colored red. The second mark portion 26 is hardly or not colored even when the illumination light from the light source 14 passes through the thin portion 34 or the through hole 36 of the substrate 32 that is colored red. , And does not affect the color tone or luminance when the second mark portion 26 is illuminated.
[0021]
Therefore, according to the display panel 30, the illumination coloring print portion 28 for the first mark portion 22 is provided between the substrate 32 and the design layer 20 as in the display panel 13 of the conventional example described with reference to FIG. Since there is no need to provide this, one printing step can be omitted, the manufacturing cost can be reduced, and the swelling of the first mark portion 22 can be eliminated, so that the appearance of the design surface can be improved.
[0022]
When the hue of the substrate 32 is dark, the effect of suppressing discoloration of light transmitted through the thin portion 34 or the through hole 36 of the substrate 32 becomes more remarkable.
[0023]
【The invention's effect】
As is clear from the above description, according to the present invention, the printing process can be omitted, so that the manufacturing cost can be reduced and the appearance of the design surface can be improved by eliminating the swelling of the first mark portion.
[Brief description of the drawings]
FIG. 1 is an enlarged partial cross-sectional view of a display panel according to an embodiment of the present invention.
FIG. 2 is a partially enlarged cross-sectional view showing a modification of the display panel of FIG.
FIG. 3 is a front view of a heater control device mounted on a vehicle or the like.
FIG. 4 is an enlarged partial cross-sectional view showing an example of a conventional display panel.
FIG. 5 is an enlarged partial cross-sectional view showing another example of a conventional display panel.
[Explanation of symbols]
14 light source, 18 surface layer, 20 design layer, 22 first mark part, 24 colored layer, 26 second mark part, 32 substrate, 34 thin part, 36 through hole.

Claims (2)

A light-transmitting substrate illuminated from the back side by a light source, and a light-shielding surface layer provided on the front surface side of the substrate and having openings in the form of cutout numbers, cutout letters, and cutout patterns at predetermined positions, A semi-transparent design layer of a color having a high brightness formed between the substrate and the surface layer is provided,
At least a first mark portion in which the design layer is exposed from an opening in the surface layer, and a second mark portion in which a semi-transparent colored layer of a predetermined color is formed in the opening in the surface layer Display device,
The substrate is colored in a predetermined color to obtain a desired illumination color for illuminating the first mark portion, and a thin portion or a through hole is provided on the substrate at a position corresponding to the second mark portion. A display device characterized by the above-mentioned. The display device according to claim 1, wherein the hue of the substrate is dark.

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