JP6130539B2 - Display device - Google Patents

Description

  The present invention relates to a display device mounted on a vehicle such as an automobile, and more particularly to an analog type display device in which a pointer is rotatably provided on a dial.

  Conventionally, various proposals have been made on display devices (so-called meters) mounted on vehicles such as automobiles.

  For example, the pointer is provided on a dial so as to be rotatable, and an analog that emits and displays a display shape formed on the dial by irradiating light from a light source such as an LED from the back side of the dial. Types of display devices are known. In this analog type display device, it is difficult to change the display format of the dial.

  Therefore, a graphic type display device capable of switching between a first mode for displaying a first image such as a scale of an analog meter on the image display device and a second display mode for displaying a second image different from the first image. Is known (see, for example, Patent Document 1). In this graphic type display device, the image of the image display device can be changed, and the design (so-called design) as the interior of the vehicle interior is improved.

JP 2007-218682 A

  However, in the conventional graphic type display device described above, various parts such as wiring connected to the image display are necessary, and the number of parts increases, resulting in high cost. In addition, since an expensive image display is used as compared with an analog type display device, there is a limit to achieving both improvement in design and cost reduction.

  In view of the above, an object of the present invention is to provide a display device capable of suppressing an increase in cost and improving design without causing an increase in the number of parts.

In order to solve the above-described problems, the present invention has the following features. First, the first feature of the present invention is that a display is formed on the dial by irradiating light from a light source from the back side of the dial, wherein the pointer is rotatably provided on the dial. A display device that emits and displays a shape, wherein the light source includes a first light emitting unit that emits a first light emitting color, and a second light emitting unit that emits a second light emitting color that is complementary to the first light emitting color. A first display mode in which the first light emitting unit is lit to display the display shape, and a second display mode in which the second light emitting unit is lit to display the display shape different from the first display mode. The dial is formed so that a portion which becomes a background in both the first display mode and the second display mode transmits the first light emission color and shields the second light emission color. A first display area, and the first display area includes the first table. The display shape in the mode is formed as a light-shielding display shape that shields the first light emission color and the second light emission color, and the display shape in the second display mode is the first light emission color and the second light emission color. The light-shielding display shape and the light-emitting display shape are formed so as to partially overlap at the same location in the first display area. The light-shielding display shape and the light-emitting display shape The gist of the overlapping region of the shape is that only the second emission color is transmitted .

  According to this feature, the display device includes a first display mode in which the first light emitting unit is turned on to display the display shape, and a second display unit in which the second light emitting unit is turned on to display a display shape different from the first display mode. The display mode can be switched.

  For this reason, the display format of the dial can be changed without using an expensive image display as compared with a conventional graphic type display device. Therefore, it is possible to suppress an increase in cost without causing an increase in the number of parts, and to improve design (so-called design) as interior of the vehicle interior.

  According to this feature, the light-shielding display shape and the transmissive display shape are formed at the same location in the first display area. Thereby, since a plurality of display shapes can be displayed in a light emitting manner with a small area, the display size of each display shape can be maintained.

  According to the characteristics of the present invention, it is possible to provide a display device capable of suppressing an increase in cost and improving design without causing an increase in the number of parts.

FIG. 1 is a cross-sectional view showing a display device according to the present embodiment. Fig.2 (a) is a front view which shows the dial in speedometer display mode, FIG.2 (b) is a partially expanded view of Fig.2 (a). Fig.3 (a) is a front view which shows the dial plate in tachometer display mode, and FIG.3 (b) is a partially expanded view of Fig.3 (a). 4A is a diagram showing a region of the black display shape 32A, FIG. 4B is a diagram showing a region of the transparent display shape 32B, and FIG. 4C is a diagram of the red display shape 32C. It is a figure which shows an area | region.

  Next, an embodiment of a display device according to the present invention will be described with reference to the drawings. Specifically, (1) the configuration of the display device, (2) the configuration of the dial, (3) the display mode of the display device, (4) the operation and effect, and (5) other embodiments will be described.

  In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic and ratios of dimensions and the like are different from actual ones.

  Accordingly, specific dimensions and the like should be determined in consideration of the following description. Moreover, the part from which the relationship and ratio of a mutual dimension differ also in between drawings may be contained.

(1) Configuration of Display Device First, the configuration of the display device 1 according to the present embodiment will be described with reference to the drawings. FIG. 1 is a cross-sectional view showing a display device 1 according to this embodiment. In addition, the display apparatus 1 which concerns on this embodiment shall be an apparatus (what is called a meter) mounted in vehicles, such as a motor vehicle.

  As shown in FIG. 1, in the display device 1, the pointer 40 is rotatably provided on the dial 30, and the dial 30 is irradiated on the dial 30 by irradiating light from the light source 20 from the back side of the dial 30. The formed display shape (a speedometer and a tachometer, which will be described later) is lit and displayed.

  Specifically, the display device 1 includes a box-shaped casing 10 formed of synthetic resin or the like. The casing 10 is formed by a front side case 11 and a back side case 12.

  In the casing 10, a light source 20 including an LED that irradiates light to the front side (the dial plate 30 and the pointer 40) of the casing 10 is provided. The light source 20 includes a blue LED 21 (first light emitting unit) that emits blue light as a first light emission color, and a red LED 22 (second light emission) that emits red light as a second light emission color that is complementary to the blue light. Part) and a pointer LED 23 that irradiates the pointer 40.

  On the front side of the light source 20 (left side in FIG. 1), a dial 30 that is irradiated with light from the light source 20 from the back side, a pointer 40 that rotates on the dial 30, and an outer wall of the dial 30 are formed. The facing 50 and the permeable surface glass 60 which covers the front surface of the facing 50 are provided. The configuration of the dial 30 will be described later.

  On the back side of the light source 20 (right side in FIG. 1), a wiring board 70 for a combination meter that is electrically connected to the light source 20 and controls turning on and off of the light source 20, and an internal unit 80 that drives the pointer 40 Is provided.

(2) Configuration of Dial Next, the configuration of the dial 30 described above will be described with reference to the drawings. Fig.2 (a) is a front view which shows the dial 30 in a speedometer display mode, FIG.2 (b) is a partially expanded view of Fig.2 (a). FIG. 3A is a front view showing the dial 30 in the tachometer display mode, and FIG. 3B is a partially enlarged view of FIG. 4A is a diagram showing a region of the black display shape 32A, FIG. 4B is a diagram showing a region of the transparent display shape 32B, and FIG. 4C is a diagram of the red display shape 32C. It is a figure which shows an area | region.

  As shown in FIGS. 2 and 3, the dial 30 has a circular shape when viewed from the front. The dial 30 includes a black print area 31 (light-shielding area) that blocks blue light and red light, a blue print area 32 (first display area) that can transmit blue light, and a red color that can transmit red light. A print area 33 (second display area) is formed.

  The black print area 31 is provided at the center of the dial 30. In the black print region 31, red characters 31A (see FIG. 3A) that transmit only red light are formed. A blue print area 32 is provided on the outer peripheral side of the black print area 31.

  The blue print region 32 is formed in a disk shape (band shape) having a predetermined width on the outer peripheral side of the black print region 31. As shown in FIGS. 2B and 3B, the blue print area 32 has a black display shape 32A (light-shielding display shape), a transparent display shape 32B (transparent display shape), and a red display shape 32C ( Light emitting display shape).

  The black display shape 32A indicates characters 32A1, scales 32A2, and units 32A3 (see FIG. 2A) that shield blue light and red light. This character 32A1 indicates the speed in the speedometer, and is represented by a part (shaded portion) of “40” of the speed (km / h) in FIG.

  The transparent display shape 32B shows characters 32B1 and scales 32B2 that transmit blue light and red light. This character 32B1 indicates the number of times in the tachometer, and is represented by a part (shaded portion) of “2” of the number of times (× 1000 rpm) in FIG. 4B. The transparent display shape 32B is formed in the same place as the black display shape 32A in the blue printing region 32.

  The red display shape 32C transmits only red light and indicates an overlapping portion between the character 32A1 and the character 32B1. The red display shape 32C shows an overlapping portion (shaded portion) of “40” and “2” in FIG.

  The black display shape 32A, the transparent display shape 32B, and the red display shape 32C are all formed in the blue print region 32 in the present embodiment, but the present invention is not limited to this, and the black print region 31, It may be provided in at least one of the blue printing area 32 and the red printing area 33.

  The red print area 33 is adjacent to the blue print area 32 and is formed by a circular line so as to indicate the inner outline and the outer outline of the blue print area 32. The red print area 33 does not necessarily need to indicate the inner outline and the outer outline of the blue print area 32, and may only show at least one of the outer inner outline and the outer outline.

  Such black print region 31, blue print region 32, and red display shape 32C may be formed by printing ink of each color on the back surface of the base material of the dial plate 30. It may be formed by affixing a film or the like on the back surface.

(3) Display Mode of Display Device Next, the display mode of the display device 1 described above will be described with reference to FIG.

  As shown in FIG. 2, the display device 1 according to this embodiment has a speedometer display mode (first display mode) in which the blue LED 21 is turned on and the red LED 22 is turned off to display a speedometer, and FIG. As described above, when the red LED 22 is turned on and the blue LED 21 is turned off, the tachometer display mode (second display mode) for displaying a tachometer different from the speedometer display mode can be switched.

  In the speedometer display mode, as shown in FIG. 2, the blue light from the blue LED 21 is shaded by the black print region 31 and the black display shape 32 </ b> A to become black, and has a complementary color relationship with the blue light. The red characters 31A, the red display shape 32C, and the red print area 33 are also shielded from light and become black. At this time, the blue light from the blue LED 21 is transmitted and transmitted through the blue printing region 32 and the transparent display shape 32B. As a result, the speedometer is displayed on the dial 30.

  On the other hand, in the tachometer display mode, as shown in FIG. 3, the red light from the red LED 22 is blocked by the black print region 31 and the black display shape 32 </ b> A to become black, and the relationship between the red light and the complementary color. The blue print area 32 is also shielded from light and becomes black. At this time, the red light from the red LED 22 is transmitted through the red characters 31A, the transparent display shape 32B, the red display shape 32C, and the red print area 33 and is emitted and displayed. Thereby, a tachometer is displayed on the dial 30.

(4) Action / Effect In the present embodiment described above, the dial 30 is formed with the black display shape 32A, the transparent display shape 32B, and the red display shape 32C, and the display device 1 includes the blue LED 21. Can be switched between a speedometer display mode in which is lit and a tachometer display mode different from the speedometer display mode in which the red LED 22 is lit.

  That is, in the speedometer display mode, the blue light from the blue LED 21 is shielded by the black display shape 32A and becomes black, and is also shielded by the red display shape 32C and becomes black. At this time, the blue light from the blue LED 21 is transmitted and transmitted through the transparent display shape 32B.

  On the other hand, in the tachometer display mode, the red light from the red LED 22 is blocked by the black display shape 32A and becomes black. At this time, the red light from the red LED 22 is transmitted and transmitted through the transparent display shape 32B and the red display shape 32C.

  Therefore, the display format of the dial 30 can be changed without using an expensive image display as compared with a conventional graphic type display device. Therefore, it is possible to suppress an increase in cost without causing an increase in the number of parts, and to improve design (so-called design) as interior of the vehicle interior.

  In the present embodiment, the transparent display shape 32 </ b> B and the red display shape 32 </ b> C are provided in the blue print region 32, and the red print region 33 is adjacent to the blue print region 32. As a result, the red print area 33 that becomes black in the speedometer display mode is lit and displayed around the blue print area 32 by red light in the tachometer display mode. For this reason, the design as interior of a vehicle interior can be improved more.

  In the present embodiment, the black display shape 32 </ b> A and the transparent display shape 32 </ b> B are formed at the same location in the blue print region 32. Thereby, since a plurality of display shapes can be displayed in a light emitting manner with a small area, the display size of each display shape can be maintained.

(5) Other Embodiments As described above, the contents of the present invention have been disclosed through the embodiments of the present invention. However, it is understood that the description and drawings constituting a part of this disclosure limit the present invention. Should not. From this disclosure, various alternative embodiments, examples, and operational techniques will be apparent to those skilled in the art.

  For example, the embodiment of the present invention can be modified as follows. Specifically, the display device 1 has been described as being mounted on a vehicle such as an automobile. However, the display device 1 is not limited thereto, and may be mounted on a device that requires a display device such as a motorcycle or a ship. .

  Moreover, the light source 20 does not necessarily need to be formed by LED (light emitting diode), and should just be what can irradiate light. Moreover, although the light source 20 was demonstrated as what was equipped with blue LED21 and red LED22, it does not necessarily need to be blue and red, and what is necessary is just the color which satisfy | fills a complementary color relationship mutually. Similarly, the blue printing region 32 and the red printing region 33 may be any color that satisfies the complementary color relationship, and the arrangement location may also be reversed.

  Further, the speedometer display mode and the tachometer display mode are merely examples, and need not necessarily be those shown in FIGS. 2 and 3, and indicate other instruments such as a fuel meter, a water meter, and a transmission. It may be.

  Further, the black display shape 32A and the red display shape 32C have been described as being formed at the same place in the blue print region 32, but the present invention is not limited to this, and the black display shape 32A and the red display shape 32C are formed at different places in the blue print region 32. It may be formed.

  As described above, the present invention naturally includes various embodiments that are not described herein. Therefore, the technical scope of the present invention is determined only by the invention specifying matters according to the scope of claims reasonable from the above description.

DESCRIPTION OF SYMBOLS 1 ... Display apparatus 10 ... Casing 20 ... Light source 21 ... Blue LED (1st light emission part)
22 ... Red LED (second light emitting part)
30 ... Dial 31 ... Black printing area (light-shielding area)
32 ... Blue printing area (first display area)
32A ... Black display shape (shading display shape)
32B ... Transparent display shape (transparent display shape)
32C ... Red display shape (light emission display shape)
33 ... Red printing area (second display area)
40 ... Guideline 60 ... Front glass 70 ... Wiring board 80 ... Internal machine

Claims (1)

A pointer is provided on the dial so as to be rotatable, and is a display device that emits and displays a display shape formed on the dial by irradiating light from a light source from the back side of the dial,
The light source includes a first light emitting unit that emits a first emission color, and a second light emitting unit that emits a second emission color that is complementary to the first emission color,
Switching between a first display mode in which the first light emitting unit is lit to display the display shape and a second display mode in which the second light emitting unit is lit to display the display shape different from the first display mode. Is possible,
The dial has a first display area formed such that a portion serving as a background in the first display mode and the second display mode transmits the first emission color and blocks the second emission color. And
In the first display area, the display shape in the first display mode is formed as a light-shielding display shape that shields the first light emission color and the second light emission color, and the display shape in the second display mode. Is formed in a transmissive display shape that transmits the first emission color and the second emission color ,
The shading display shape and the light emitting display shape are formed so as to partially overlap at the same location in the first display area,
The overlapping area of the light-shielding display shape and the light emitting display shape transmits only the second light emitting color .

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