JP2007232473A - Display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device capable of realizing a metalline material with posh appearance, by making up a print layer itself on the premise of a semi-transparent metalline print layer, which is formed on a substrate of the displaying device. <P>SOLUTION: In the displaying device, a first semi-transparent metalline print layer 11 which contains metal powder, is formed on the surface of a display plate 2, and a second semi-transparent metalline print layer 12 which contains metal powder and has a color identical to that of the first semi-transparent metalline print layer 11, is formed on the portion of the surface of the first semi-transparent metalline print layer 11 other than the shape area of an indicator section 8. Therefore, a metalline decorative effect can be realized, and the displaying device is made up such that the indicator section 8 being a displaying section cannot be seen when a light source 5 is turned off, and only when the light source 5 is turned on, the indicator section 8 being the displaying section can be displayed by transmitted illumination. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a display device that transmits and illuminates a display plate with light rays emitted from a light source.

  Conventionally, as an instrument device installed in special vehicles such as construction machinery, ships, automobiles, motorcycles, etc., an alarm for informing the driver of the status of instruments such as speedometers, tachometers, fuel gauges, and various devices Devices and the like are housed in an instrument case made of synthetic resin. In this case, for example, as shown in FIGS. 6 and 7, as a general configuration of an instrument device that displays various traveling information equipped in a vehicle such as an automobile, a speedometer is provided in the instrument case 1 of the instrument device. An indicator instrument for instructing the operation status of the vehicle such as a tachometer and a fuel gauge is housed. A display plate 2 made of a translucent substrate 2A is attached to the front side of the instrument body (not shown) as a display device in this indicator instrument. The indication of the pointer 3 formed on the instrument body is fixed and can be read in comparison with the indicator portion 4 such as a scale or a numerical value provided on the surface of the display board 2.

  Also, inside the instrument case 1, a light-emitting diode 5 or the like serving as a light source is lit to indicate various vehicle conditions such as engine oil pressure, light on, engine oil level, or remaining fuel level. In this case, the number of display items for notifying the state of the vehicle or the like is divided into the same number as that of the display items, and the irradiation light of the light emitting diode 5 is isolated so as not to leak to the outside. A wall portion 6 having a substantially cylindrical shape for guiding a light beam is provided, and light emitting diodes 5 are respectively disposed on the circuit board 7 below the wall portion 6. A display device is configured by printing a display unit (index unit) 8 with, for example, a graphic display on the surface of the display plate 2 above the wall 6.

  According to such a conventional display device, since the display unit 8 is usually printed in a chromatic color, the display unit 8 is provided on the display plate 2 even when the light-emitting diode 5 that is a light source is not lit. There was a problem that the display unit 8 was visually recognized and its presence was conspicuous, which was not preferable in appearance design.

Therefore, in consideration of this point, as in Patent Document 1, the indicator portion that is the display portion is not visible when the light source is not turned on, and the indicator portion that is the display portion is illuminated only when the light source is turned on. What has been proposed is proposed.
Japanese Utility Model Publication No. 4-17974

  However, in the display device such as Patent Document 1 described above, a black translucent layer is applied to the range of the display window portion of the transparent substrate, and the black matte layer is printed by removing the display window portion. Is provided by. As a result, the indicator part (display window part), which is the display part, is not seen when the light source is not lit, so the display window part can be made more black-faced. Since the surface portion of the substrate simply becomes a black display surface, there remains a problem that the display panel cannot be provided with a high-class feeling.

  Therefore, in order to address the above-mentioned problems, the present invention forms a printing layer itself applied to the substrate of the display device based on a semi-transparent metallic tone printing layer, thereby providing a high-quality metallic tone material. An object is to provide a display device capable of obtaining a feeling.

  In order to solve the above-described problems, the present invention includes a display plate in which an indicator portion is provided on a translucent substrate, and a light source provided on the back side of the display plate. In the display device, the display plate includes a first semi-transmissive metal tone print layer containing metal powder applied to a surface thereof, and the first semi-permeable metal tone print layer having the same color as the first semi-permeable metal tone print layer. A display device comprising: a second semi-permeable metal-like print layer containing metal powder applied on the surface of the semi-permeable metal-like print layer excluding the shape portion of the indicator portion. .

  Moreover, in Claim 2, the content rate of the metal powder contained in the said 2nd semi-permeable metallic tone printing layer is contained in the said 1st semi-permeable metallic tone printing layer in the display apparatus of Claim 1. It is characterized by being set higher than the metal powder content.

  According to a third aspect of the present invention, in the display device according to the first or second aspect, on the back surface of the display plate, the shape portion of the indicator portion is removed in accordance with the second semi-permeable metallic tone print layer. Thus, a light-shielding printing layer is applied.

  According to a fourth aspect of the present invention, in a display device comprising: a display board provided with an indicator portion on a translucent substrate; and a light source provided on the back side of the display board. A first semi-permeable metallic tone print layer containing metal powder corresponding to at least the area of the indicator portion is provided on the surface portion, and the indicator portion has the same color as the first semi-permeable metal tone print layer. A second semi-permeable metallic tone printing layer containing metal powder is provided except for the shape portion of the first semi-permeable metallic tone printing layer than the first semi-permeable metallic tone printing layer. The display device is characterized by being set low.

  Further, in claim 5, in the display device according to claim 4, the content ratio of the metal powder contained in the second semipermeable metal tone print layer is included in the first semipermeable metal tone print layer. It is characterized by being set higher than the metal powder content.

  Further, in claim 6, in the display device according to claim 4 or claim 5, a shape portion of the indicator portion is removed on the back surface of the display board in accordance with the second semi-permeable metallic tone print layer. Thus, a light-shielding printing layer is applied.

  In the present invention, the display panel has a first semi-transmissive metallic tone print layer containing metal powder applied to the surface thereof, and the first semi-permeable metallic tone print layer in the same color as the first semi-permeable metallic tone print layer. Because it is a display device characterized by comprising a second semi-permeable metal-like print layer containing metal powder applied on the surface of the transparent metal-like print layer excluding the shape portion of the indicator portion, A metallic decorative effect can be realized, and the indicator part that is the display part is not visible when the light source is not lit, and the indicator part that is the display part is transmitted and displayed only when the light source is lit Thus, the initial purpose can be achieved.

  According to claim 1 of the present invention, in a display device comprising: a display plate provided with an indicator portion on a translucent substrate; and a light source provided on the back side of the display plate, the display plate includes The surface of the first semi-permeable metallic tone print layer having the same color as the first semi-permeable metallic tone print layer containing the metal powder applied to the surface The display device is characterized by comprising a second semi-permeable metallic tone print layer containing metal powder applied excluding the shape portion of the indicator portion on the top, thereby realizing a metallic tone decorative effect In addition, the indicator portion which is the display portion is not visible when the light source is not lit, and the indicator portion which is the display portion is illuminated and displayed only when the light source is turned on. The printing layer itself applied to the substrate is formed based on the semi-permeable metallic tone printing layer. And it makes it possible to provide a display device capable of obtaining the material appearance of metallic feeling of luxury.

  Further, in the display device according to claim 1, the content of the metal powder contained in the second semi-permeable metallic tone print layer is the content of the metal powder contained in the first semi-permeable metallic tone print layer. By setting it higher than this, it is possible to illuminate and transmit the indicator part, which is the display part, brighter than the part other than the indicator part when the light source is turned on. (Claim 2)

  Further, in the display device according to claim 1 or 2, a light-shielding printing layer is provided on a back surface of the display board so as to remove a shape portion of the indicator portion in accordance with the second semi-transmissive metallic tone printing layer. Thus, only the indicator portion which is the display portion can be brightly transmitted and illuminated when the light source is turned on. (Claim 3)

  According to a fourth aspect of the present invention, there is provided a display device comprising: a display plate provided with an indicator portion on a translucent substrate; and a light source provided behind the display plate. The surface portion is provided with a first semipermeable metallic tone print layer containing metal powder corresponding to at least the area of the indicator portion, and the same color as the first semipermeable metallic tone print layer. A second semi-permeable metallic tone printing layer containing metal powder is provided except for the shape portion of the indicator portion, and the transmittance of the second semi-permeable metallic tone printing layer is determined by the first semi-permeable metal tone. Since it is a display device characterized by being set lower than the tone print layer, it is possible to realize a metallic effect and to prevent the indicator part from being seen when the light source is not lit. When the light source is turned on, the indicator part, which is the display part, is brightly lit and illuminated. In addition, by providing the printing layer itself applied to the substrate of the display device based on the semi-transparent metallic tone printing layer, a display device capable of obtaining a high-quality metallic tone material feel is provided. can do.

  5. The display device according to claim 4, wherein the content of the metal powder contained in the second semi-permeable metallic tone print layer is the content of the metal powder contained in the first semi-permeable metallic tone print layer. By setting it higher than this, it is possible to set the transmittance of the second semi-permeable metallic tone print layer to be lower than the transmittance of the first semi-permeable metallic tone print layer. Thus, when the light source is turned on, the indicator portion that is the display portion can be transmitted and illuminated brighter than the portion other than the indicator portion. (Claim 5)

  Further, in the display device according to claim 4, a light-shielding printing layer is provided on the back surface of the display board so as to remove the shape portion of the indicator portion in accordance with the second semi-transmissive metallic tone printing layer. Thus, only the indicator portion which is the display portion can be brightly transmitted and illuminated when the light source is turned on. (Claim 6)

  Hereinafter, based on the attached drawings, an embodiment in which the display device of the present invention is applied to an instrument for a vehicle will be described. Note that the same reference numerals are used for the same or equivalent portions as in the conventional example described above.

  A first embodiment of the present invention is shown in FIGS. As a display device incorporated in this type of instrument device, an indicator instrument consisting of a speedometer in the center, an indicator instrument consisting of a tachometer on the left side, an indicator instrument consisting of a fuel gauge on the right side, a mileage indicator and a gear position display Display devices such as instruments and various detection indicators are arranged, and each is accommodated in the instrument case 1.

  In this case, as a display device in the indicating instrument, the display plate 2 is attached and fixed to the front side of the not-shown instrument body, and the indication of the pointer 3 formed on the instrument body is a scale or numerical value provided on the surface of the display plate 2. It is configured to be able to read in contrast to the indicator portion 4 of the above.

  Similarly to the conventional example, the instrument case 1 includes various vehicles such as an engine oil pressure state, a light lighting state, an engine oil level state, a fuel remaining amount display and a seat belt display state display. A display device is provided for informing the state by turning on the light emitting diode 5 or the like serving as a light source. In this case, the number of display items for informing the state of the vehicle or the like is divided into the same number as the number of display items. The wall 6 is formed in a cylindrical shape that is isolated so as not to leak to the outside and guides light rays toward the display device, and the light emitting diodes 5 are disposed on the circuit board 7 below the wall 6. In addition, a display unit (index unit) 8 is provided on the surface of the display panel 2 on the surface side of the instrument device, that is, above each cylindrical wall 6, for example, by a pictorial display.

  The display board 2 is composed of a substantially flat substrate 2A made of a transparent synthetic resin. In the display device area on the display board 2, a silver-colored first metal containing aluminum powder on the surface of the display board 2 is provided. 1 is formed by printing a semi-transparent metal-like print layer 11 on the surface of the first semi-permeable metal-like print layer 11 except for a shape portion of a display portion (index portion) 8 by a graphic display or the like. Thus, a silver-colored second semi-permeable metal-like print layer 12 having the same color as the first semi-permeable metal-like print layer 11 and containing metal powder made of aluminum is formed by printing.

  Moreover, in this 1st Example, the content rate of the metal powder contained in the 2nd semi-permeable metallic tone printing layer 12 is set to the metal powder contained in the 1st semi-permeable metallic tone printing layer 11. It is set higher than the content rate.

  Therefore, when the light emitting diode 5 as the light source is not lit, the surface portion of the display panel 2 is formed by the first semi-transmissive metal tone print layer 11 and the second semi-transmissive metal tone print layer 12 having the same color. By covering the surface, the indicator portion 8 which is a display portion is almost invisible, a metallic effect can be realized, and the printing layer itself applied to the substrate 2A of the display device can be a semi-transparent metallic printing layer 11. , 12 is used as a base tone, and a high-quality metallic feel can be obtained.

  Further, when the light emitting diode 5 as the light source is turned on, the indicator portion 8 as the display portion is illuminated and displayed. In this case, in the first embodiment, the second semi-transmissive metallic tone printed layer 12 is provided. By setting the content rate of the metal powder contained higher than the content rate of the metal powder contained in the first semipermeable metal tone print layer 11, the second semipermeable metal tone print layer 12 The transmittance can be set to be lower than the transmittance of the first semi-transmissive metal tone print layer 11, thereby allowing the second semi-transparent metal tone print layer to be printed rather than overprinting. By setting the transmissivity of the semi-transmissive metal tone print layer 12 to be lower than the transmissivity of the first semi-transparent metal tone print layer 11, the display unit is turned on when the light-emitting diode 5 which is a light source is turned on. The indicator part 8 is brighter than the part other than the indicator part 8, and the finger Are those which may be relatively dim transmitted illumination to portions other than the part 8, there is an effect that it is possible to clearly illuminate the display the indicator portion 8 points by transmission illumination by light and dark. At this time, by setting the transmittance arbitrarily, the first semi-transmissive metallic tone print layer 11 and the second semi-transmissive metallic tone print layer 12 are overprinted to set the non-transmissive state. It is possible.

  FIG. 4 is a cross-sectional view of the main part showing the outline of the display board 2 according to the second embodiment of the present invention. In this case, the display board 2 is the same as the first embodiment described above. A silver-colored first translucent metallic print layer 11 containing metal powder made of aluminum is printed on the surface of the substrate, and a graphic image is formed on the surface of the first translucent metallic print layer 11. Silver-colored second semi-transparent metallic tone that is the same color as the first semi-permeable metallic tone printed layer 11 except for the shape portion of the display portion (index portion) 8 by display or the like, and contains metal powder made of aluminum. A print layer 12 is formed by printing.

  Further, a light-shielding printing layer 13 made of black ink or the like is provided on the back surface of the display board 2 so as to exclude the shape portion of the indicator portion 8 in accordance with the printing area of the second semi-transmissive metal tone printing layer 12. ing.

  Therefore, when the light emitting diode 5 as the light source is not lit, the first semi-transmissive metal tone printing layer 11 and the second semi-transmissive metal tone printing having the same color are used as in the first embodiment. By covering the surface portion of the display panel 2 with the layer 12, the indicator portion 8 which is a display portion becomes almost invisible, and a metallic decorative effect can be realized and applied to the surface of the substrate 2A of the display device. By forming the printing layer itself based on the semi-permeable metallic tone printing layers 11 and 12, it is possible to obtain a high-quality metallic tone.

  In addition, when the light-emitting diode 5 that is a light source is turned on, only the indicator portion 8 that is a display portion is displayed in a transmitted illumination manner. That is, since the light from the light source 8 is blocked by the light-shielding print layer 13 formed on the back surface of the display panel 2, only the indicator portion 8 that is the display portion can be brightly transmitted and illuminated when the light-emitting diode 5 is turned on. .

  FIG. 5 is a cross-sectional view of the main part showing the outline of the display board 2 showing the third embodiment of the present invention. In this case, the display board 2 corresponds to at least the area of the indicator part 8 on the surface portion. The first semi-permeable metallic tone print layer 11 containing metal powder is provided, and the first semi-permeable metallic tone print layer 11 is provided with the same color as the first semi-permeable metal tone print layer 11 except for the shape portion of the indicator portion 8. The second translucent metallic tone print layer 12 is provided, and the transmittance of the second semipermeable metallic tone print layer 12 is set lower than that of the first semipermeable metallic tone print layer 11. ing.

  At this time, as a means for setting the transmittance, in the third embodiment, the content of the metal powder contained in the second semi-permeable metallic tone print layer 12 is changed to the first semi-permeable metallic tone print layer 11. By setting it higher than the content rate of the contained metal powder, the transmittance of the second semi-permeable metallic tone print layer 12 can be kept lower than the transmittance of the first semi-permeable metallic tone print layer 11. It is set as follows.

  Therefore, when the light emitting diode 5 as the light source is not lit, the first semi-transmissive metal tone print layer 11 and the second semi-transmissive metal tone print layer having the same color as in the above-described embodiments are used. 12, the display portion 2 is covered with the surface portion of the display plate 2 so that the indicator portion 8 which is a display portion is hardly visible, and the printing layer itself applied to the surface of the substrate 2 </ b> A of the display device is made to be a semi-transmissive metallic tone printing layer 11. , 12 is used as a base tone, and a high-quality metallic feel can be obtained.

  Further, when the light emitting diode 5 as the light source is turned on, the indicator portion 8 as the display portion is illuminated and displayed. In this case, in the first embodiment, the second semi-transmissive metallic tone printed layer 12 is provided. By setting the content rate of the metal powder contained higher than the content rate of the metal powder contained in the first semipermeable metal tone print layer 11, the second semipermeable metal tone print layer 12 The transmittance can be set to be lower than the transmittance of the first translucent metallic tone printed layer 11, and thereby the indicator portion 8 that is a display portion when the light-emitting diode 5 that is a light source is turned on is an indicator. It is possible to illuminate and transmit brighter than the portion other than the portion 8.

  FIG. 6 is a cross-sectional view of the main part showing the outline of the display board 2 according to the fourth embodiment of the present invention. In this case, the display board 2 is substantially the same as the third embodiment described above. 2 is provided with a first semi-permeable metallic tone printing layer 11 containing a metal powder corresponding to at least the area of the indicator portion 8 on the surface portion, and the first semi-permeable metallic tone printing layer 11. The second semi-permeable metallic tone printed layer 12 containing the metal powder except for the shape portion of the indicator portion 8 in the same color is provided.

  Further, a light-shielding printing layer 13 made of black ink or the like is provided on the back surface of the display board 2 so as to exclude the shape portion of the indicator portion 8 in accordance with the printing area of the second semi-transmissive metal tone printing layer 12. ing.

  Therefore, when the light emitting diode 5 as the light source is not lit, the first semi-transmissive metal tone print layer 11 and the second semi-transmissive metal tone print layer having the same color as in the above-described embodiments are used. 12, the display portion 2 is covered with the surface portion of the display plate 2 so that the indicator portion 8 which is a display portion is almost invisible, and the printing layer itself applied to the surface of the substrate 10 of the display device is made to be a semi-transmissive metallic tone printing layer 11. , 12 is used as a base tone, and a high-quality metallic feel can be obtained.

In addition, when the light-emitting diode 5 that is a light source is turned on, only the indicator portion 8 that is a display portion is displayed in a transmitted illumination manner. That is, since the light from the light source 8 is blocked by the light-shielding print layer 13 formed on the back surface of the display board 2, only the indicator portion 8 that is the display portion is brightly transmitted and illuminated when the light-emitting diode 5 is turned on.

  The present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the gist of the present invention. For example, in the embodiment, the illumination color of the light-emitting diode 5 which is a light source is not specified, but the illumination color is appropriately set according to the contents of the display unit 8 (index unit), such as blue, green, blue, and white The illumination color can be switched by using a light source capable of emitting three primary colors for the light-emitting diode 5 itself, which is a light source, and the color of the light source can be changed. For example, the illumination color may be set on the back surface of the display board 2 by a color filter or color printing. In the embodiment, the translucency metallic tone printing layers 11 and 12 are set by changing the metal powder content while arbitrarily changing the thickness. It is also possible to change the transmittance by applying.

  The display device has been described as an example of a display device that displays a warning in the event of a vehicle condition or abnormality, but the display of the indicator part of the instrument that indicates the running state of the indicator instrument or the illumination of the display part of a remote controller other than the vehicle The present invention can also be applied to a display device for performing display, a display device for transmitting illumination of a display unit of operation switches of a copy machine, and the like.

FIG. 1 is a front view showing a display device incorporated in an instrument device in a first embodiment of the present invention. FIG. 2 is a cross-sectional view showing the location of the line AA in FIG. 1 and a schematic cross-sectional view showing the main part of the display board. FIG. 3 is a cross-sectional view of a display device showing a second embodiment of the present invention and a schematic cross-sectional view showing the main part of the display panel. FIG. 4 is a cross-sectional view of a display device showing a third embodiment of the present invention and a schematic cross-sectional view showing the main part of the display panel. FIG. 5 is a cross-sectional view of a display device showing a fourth embodiment of the present invention and a schematic cross-sectional view showing the main part of the display panel. FIG. 6 is a front view showing a display device incorporated in a conventional instrument device. FIG. 7 is a cross-sectional view taken along the line AA in FIG.

Explanation of symbols

1 Instrument case 2 Display board 2A Substrate 3 Pointer 4 Indicator section (scale, numerical value)
5 Light-emitting diode 5 (light source)
6 Wall part 7 Circuit board 8 Indicator part (display part by picture display etc.)
11 1st translucent metallic tone printing layer 12 2nd semipermeable metallic tone printing layer 13 Shading printing layer

Claims (6)

  In a display device comprising a display plate provided with an indicator on a light-transmitting substrate and a light source provided on the back side of the display plate, the display plate has a metal powder applied to the surface thereof. The shape part of the said index part on the surface of the 1st semi-permeable metallic tone printing layer containing the 1st semi-permeable metallic tone printing layer containing the 1st semi-permeable metallic tone printing layer in the same color And a second semi-permeable metal-tone printed layer containing the metal powder applied except for.   The content rate of the metal powder contained in the second semipermeable metal tone print layer is set higher than the content rate of the metal powder contained in the first semipermeable metal tone print layer. The display device according to claim 1.   The light-shielding printing layer is given to the back surface of the said display board so that the shape part of the said indicator part may be remove | excluded according to a said 2nd semipermeable metallic tone printing layer. 2. The display device according to 2.   In a display device comprising: a display plate provided with an indicator portion on a translucent substrate; and a light source provided behind the display plate. The display plate includes at least the indicator on a surface portion thereof. In addition to providing a first semi-permeable metallic tone print layer containing metal powder corresponding to the area of the portion, except for the shape portion of the indicator portion in the same color as the first semi-permeable metallic tone print layer A second semi-permeable metallic tone printing layer containing metal powder is provided, and the transmittance of the second semi-permeable metallic tone printing layer is set lower than that of the first semi-permeable metallic tone printing layer. A display device.   The content rate of the metal powder contained in the second semipermeable metal tone print layer is set higher than the content rate of the metal powder contained in the first semipermeable metal tone print layer. The display device according to claim 4.   The light-shielding printing layer is given to the back surface of the said display board so that the shape part of the said indicator part may be remove | excluded according to a said 2nd semipermeable metallic tone printing layer. 5. The display device according to 5.

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