JP5310601B2 - Vehicle display device - Google Patents

Description

  The present invention relates to a vehicle display device including a back light source and a dial whose back surface is illuminated by the back light source.

  Conventionally, as disclosed in Patent Document 1, for example, a first display unit that displays measurement information, a second display unit that displays notification information or alarm information by light emission, and a decoration display unit that performs decoration display by light emission A display device for a vehicle is proposed. In this vehicular display device, the discriminability and discriminability (visibility of the vehicle state) of the notification information and alarm information are improved by changing the emission color of the decoration display unit according to the emission color of the second display unit. I am letting.

JP 2005-331493 A

  By the way, the above-mentioned decoration display part consists of a light emitting element and a translucent body, and this translucent body is provided on a display board provided with a scale, a pointer, and the like. As a result, there is a problem that the physique of the display panel increases and the physique of the vehicle display device increases due to the provision of the translucent body.

  In view of the above problems, an object of the present invention is to provide a vehicular display device in which an increase in physique is suppressed and visibility of a vehicle state is improved.

In order to achieve the above-mentioned object, the invention according to claim 1 is a display device for a vehicle comprising a back light source and a dial whose back surface is illuminated by the back light source. The dial has a front light source that illuminates the front side, and the dial has a reflector that reflects the light of the front light source to the observer, and a design portion that is illuminated by the back light source. There are a plurality of marks for displaying the status, the back light source has a plurality of colored light sources that irradiate the mark with light of a color corresponding to the mark, and the front light source is provided at a predetermined distance from the dial. The area in front of the dial illuminated by is an area including at least a part of the reflector on the front of the dial, and the front light source is linked to the light emission of the colored light source and emits light emitted from the colored light source. It is intended to irradiate the same color of light and color, the vehicle The state has a plurality of states with different priorities, the mark has a plurality of marks with different priorities, the colored light source has a plurality of colored light sources according to each of the plurality of marks with different priorities, When a plurality of colored light sources with different priorities are turned on at the same time, the front light source lights for the specified time the same color as the light emitted by the colored light source with the highest priority among the colored light sources that are turned on simultaneously. Or it blinks .

  As described above, according to the present invention, the dial has the reflecting plate, and the region including at least a part of the reflecting plate in front of the dial is illuminated by the front light source. The front light source emits light of the same color as the color emitted by the colored light source in conjunction with the emission of the colored light source that emits light of the color corresponding to the mark indicating the vehicle state. According to this, at least a part of the region of the reflector has the same color as the mark illuminated by the colored light source. As a result, since the color representing the vehicle state is displayed not only on the mark but also on the reflector, the visibility of the vehicle state is improved.

Further, in the present invention, since the reflecting plate itself functions to display the vehicle state, the dial has an increased physique compared to the configuration in which the dial has a decorative portion that reflects the light emitted from the front light source. Is suppressed. As a result, an increase in the size of the vehicle display device is suppressed. Further, in the present invention, the vehicle state has a plurality of states having different priorities, the mark has a plurality of marks having different priorities, and the colored light source has a color corresponding to each of the plurality of marks having different priorities. When there are multiple colored light sources, the front light source has the same color as the light emitted by the colored light source with the highest priority among the colored light sources that are lit simultaneously when multiple colored light sources with different priorities are lit simultaneously. Light or blink colored light for a predetermined time. According to this, the visibility of the vehicle state with high priority can be improved. Further, when the front light source blinks, the visibility of the vehicle state having a high priority can be improved as compared with the case where the front light source is turned on.

A front light source for illuminating the front side of the dial on the observer side, comprising: a back light source; and a dial whose back surface is illuminated by the back light source. The dial has an impermeable plate and a design part, and the design part has a plurality of marks for displaying the vehicle state and a measurement display part for displaying measurement information, respectively. The light source includes a plurality of colored light sources that irradiate the mark with light of a color corresponding to the mark and a display light source that irradiates the measurement display unit with light, and the measurement display unit transmits light from the display light source. A transmission part and a reflection part for reflecting the light of the front light source, the front light source is provided at a predetermined distance from the dial, and the area in front of the dial illuminated by the front light source is It is an area including at least one of the measurement display units on the front, and the front light Is in conjunction with the emission of colored light sources, which irradiate the organic color light source color identical to the color of the light emitted light, the vehicle state, there are multiple different states priorities, mark, There are a plurality of marks with different priorities, the colored light source has a plurality of colored light sources according to each of the plurality of marks with different priorities, and the front light source has a plurality of colored light sources with different priorities turned on simultaneously. In this case, light having the same color as the light emitted from the colored light source having the highest priority among the colored light sources that are turned on simultaneously is lit or blinked for a predetermined time .

  As described above, according to the present invention, the design unit includes a plurality of measurement display units that display measurement information and a plurality of marks that display the vehicle state, and the measurement display unit emits light from the display light source. A transmissive portion that transmits light, and a reflective portion that reflects light from the front light source. And the area | region containing at least 1 of the measurement display part in the front of a dial face is illuminated by a front light source. The front light source emits light of the same color as the color emitted by the colored light source in conjunction with the emission of the colored light source that emits light of the color corresponding to the mark. According to this, the reflection part of at least one measurement display part becomes the same color as the mark illuminated by the colored light source. As a result, since the color representing the vehicle state is displayed not only on the mark but also on at least one measurement display unit, the visibility of the vehicle state is improved.

In the present invention, since the measurement display unit itself functions to display the vehicle state, the dial has a physique of the dial as compared with a configuration having a decorative part that reflects light emitted from the front light source. Increase is suppressed. As a result, an increase in the size of the vehicle display device is suppressed. Further, in the present invention, the vehicle state has a plurality of states having different priorities, the mark has a plurality of marks having different priorities, and the colored light source has a color corresponding to each of the plurality of marks having different priorities. When there are multiple colored light sources, the front light source has the same color as the light emitted by the colored light source with the highest priority among the colored light sources that are lit simultaneously when multiple colored light sources with different priorities are lit simultaneously. Light or blink colored light for a predetermined time. According to this, the visibility of the vehicle state with high priority can be improved. Further, when the front light source blinks, the visibility of the vehicle state having a high priority can be improved as compared with the case where the front light source is turned on.

According to a third aspect of the present invention, when a plurality of colored light sources having different priorities are turned on at the same time, the front light source emits light having the same color as the light emitted from the colored light source having the highest priority for a predetermined time. after lighting or flashing simultaneously lighted of colored light sources, sequentially in that priority is same lighting or flashing the color of light a predetermined time and color of light low colored sources priority is lit even higher color light source Repeated configuration is good. According to this, visibility of a plurality of vehicle states can be improved.

According to a fourth aspect of the present invention, it is preferable to have a notification sound part that emits a warning sound when a colored light source having the highest priority is turned on. According to this, the recognizability of the vehicle state having a high priority can be improved.

As described in claim 5 , the vehicle state includes a warning state, a caution state, an economic state, and a normal state. The warning state has a higher priority than the attention state, the attention state has a higher priority than the economic state, and the economic state has a higher priority than the normal state. In this case, as described in claim 6 , the colored light source includes a warning color light source that emits light of a color according to a warning state, a caution color light source that emits light of a color according to a caution state, and an economic state And an economical color light source that emits light of a color corresponding to the color. According to a seventh aspect of the present invention, the colored light source has a normal color light source that emits light of a color corresponding to a normal state.

As described in claim 8, the illuminance of the front light source is less configuration than the illuminance of the colored light sources are preferred. According to this, the visibility of the mark illuminated by the colored light source is suppressed from being lowered by the light from the front light source. In this case, as described in claim 9 , the mark includes a transmission part that transmits the light of the colored light source and a reflection part that reflects the light of the front light source, and includes the mark in front of the dial. However, the structure illuminated with a front light source is employable.

According to a tenth aspect of the present invention, it is preferable that the area excluding the mark illuminated by the colored light source in front of the dial is illuminated by the front light source. According to this, the visibility of the mark illuminated by the colored light source is suppressed from being lowered by the light from the front light source.

As described in claim 11 , the design part has a plurality of measurement display parts for displaying measurement information, the back light source has a plurality of display light sources for irradiating the measurement display part with light, A pointer pointing to the measurement display unit is provided, and the pointer preferably has a light guide unit that is illuminated by light from the back light source and a cover that reflects light from the front light source. According to this, since the area where the color representing the vehicle state is displayed is increased by the front light source, the visibility of the vehicle state is improved.

It is a front view which shows schematic structure of the combination meter which concerns on 1st Embodiment. It is sectional drawing which follows the II-II line | wire of FIG. It is sectional drawing which follows the III-III line of FIG. It is a figure for demonstrating schematic structure of a dial, (a) is an enlarged front view, (b) is sectional drawing which follows the IVb-IVb line. It is a front view for demonstrating a back light source. It is a front view which shows schematic structure of a front light source. It is a figure for demonstrating the modification of a dial, (a) is an enlarged front view, (b) is sectional drawing which follows the VIIb-VIIb line. It is a figure for demonstrating the modification of a dial, (a) is an enlarged front view, (b) is sectional drawing which follows a VIIIb-VIIIb line. It is a figure for demonstrating the modification of a dial, (a) is an enlarged front view, (b) is sectional drawing which follows the IXb-IXb line.

Hereinafter, an embodiment in which the display device for a vehicle described in the present invention is applied to a combination meter of a vehicle will be described with reference to the drawings.
(First embodiment)
FIG. 1 is a front view showing a schematic configuration of the combination meter according to the first embodiment. 2 is a cross-sectional view taken along line II-II in FIG. 3 is a cross-sectional view taken along line III-III in FIG. 4A and 4B are diagrams for explaining a schematic configuration of the dial, in which FIG. 4A is an enlarged front view, and FIG. 4B is a cross-sectional view taken along line IVb-IVb. FIG. 5 is a front view for explaining the back light source. FIG. 6 is a front view showing a schematic configuration of the front light source. In FIG. 5, for convenience, the back light source 41 located on the back surface of the dial 20 is indicated by a solid line, and the design portion 23, the pointer 60, and the image display portion 70 are omitted.

  As shown in FIGS. 1 to 3, the combination meter 100 includes, as main parts, a speedometer 10 that displays the traveling speed of the vehicle, a tachometer 11 that displays the engine speed of the vehicle, a section traveling distance and a total of the vehicle. It has the image display part 70 which shows a travel distance, and the indicator 80 which shows vehicle states, such as an operation state and an abnormal state of a vehicle. Each of the speedometer 10 and the tachometer 11 is provided in a cutout portion 91 formed in the turnback member 90, and a turntable plate that hides the boundary between the speedometer 10, the tachometer 11 and the turnback member 90 at the edge of the cutout portion 91. 92 is provided. An image display unit 70 is provided on the speedometer 10, and an indicator mark that is a constituent element of the indicator 80 is provided on the tachometer 11 and the turning member 90. As shown in FIGS. 2 and 3, the speedometer 10, the tachometer 11, the image display unit 70, and the turning member 90 are each in a closed space constituted by a front case 93, a rear case 94, and a front panel 95. It is arranged and can be observed through the front panel 95.

  In the following, since there are many elements common to the components of the speedometer 10 and the tachometer 11, first, the components common to the speedometer 10 and the tachometer 11 will be described, and then the speedometer 10 and the tachometer 11. The different components will be described.

  Each of the speedometer 10 and the tachometer 11 includes a dial 20, a light source 40, a circuit board 50, and a pointer 60 as main parts.

  The dial plate 20 includes a transparent substrate 21, a reflection portion 22 and a design portion 23 formed on the transparent substrate 21, and is supported on the circuit substrate 50 by a support portion 96. The transparent substrate 21 is a light-transmitting disk-shaped plate, and a through-hole 21c that penetrates the back surface 21a and the front surface 21b is formed in the center of the transparent substrate 21. A support shaft 61 of a pointer 60 described later is inserted through the through hole 21c.

  Although not shown, on the back surface 21 a of the transparent substrate 21, a light diffusion layer that reduces illumination unevenness of the design portion 23, a light shielding layer that suppresses light emitted from the back surface 21 a side from being emitted from the reflection portion 22, A reflective layer for improving the illumination brightness of the design portion 23 is formed. On the other hand, as shown in FIG. 4, paints 24 to 26 that form the reflecting portion 22 and the design portion 23 are applied to the front surface 21 b that is the back surface of the back surface 21 a by a technique such as silk screen printing or hot stamping. ing. A light-shielding paint 24 having a light-shielding property is applied to the formation region of the reflection part 22 on the front surface 21b, and a semi-transparent paint 25 having a semi-transmission property is formed on the surface of the design region 23 and the light-shielding paint 24 on the front surface 21b. It has been applied. Then, the reflective paint 26 is applied to the formation region of the reflective portion 22 in the semi-transmissive paint 25 so that the end of the light-shielding paint 24 applied to the front surface 21b can be observed through the semi-transmissive paint 25. As described above, the outer shape of the design portion 23 is formed by the light-shielding paint 24, and the inside of the design portion 23 is formed by the semi-transmissive paint 25. Then, the outer surface of the reflection portion 22 is formed by the reflective paint 26. The light-shielding paint 24 that forms the outer shape of the design portion 23 corresponds to the light-shielding portion described in the claims, and the translucent paint 25 that forms the inside of the design portion 23 is the transmission portion described in the claims. It corresponds to.

  As described above, when light is applied to the back surface 20 a of the dial 20, light is emitted from the inside of the design portion 23, and when light is applied to the front surface 20 b of the dial 20, the light is reflected by the reflecting portion 22. The light is absorbed by the light-shielding paint 24 that borders the design portion 23. Therefore, the edge of the design portion 23 is displayed in black, the inside thereof is displayed in the color of light that irradiates the back surface 20a, and the reflection portion 22 is displayed in the color of light that irradiates the front surface 20b.

  The reflection part 22 is formed by a part of the light shielding paint 24 and the reflection paint 26, and the reflection part 22 and the transparent substrate 21 on which the reflection part 22 is formed are described in the claims. The reflector is configured. The formation area of the reflection part 22 in the dial 20 is an area excluding the formation area of the design part 23 in the dial 20, and the formation area of the reflection part 22 is wider than the formation area of the design part 23.

  The design unit 23 includes a measurement display unit 27 that displays measurement information. As illustrated in FIG. 1, the measurement display unit 27 includes a character unit 27 a that displays a measured value, and a scale unit 27 b that indicates a scale. And a unit portion 27c indicating a unit of the measured value. Each of the character part 27 a and the scale part 27 b is formed along an arcuate end of the transparent substrate 21, and the unit part 27 c is formed inside the transparent substrate 21.

  The light source 40 includes a back light source 41 and a front light source 42. The back light source 41 irradiates the back surface 20 a of the dial 20, and the front light source 42 irradiates the front surface 20 b of the dial 20. The back light source 41 is mounted on a wiring board 51 of a circuit board 50 described later, and the front light source 42 is mounted on a wiring board 43. The back light source 41 and a battery (not shown) mounted on the vehicle are electrically connected via the wiring board 51, and the front light source 42 and the battery are the wiring board 43, the lead 44, the wiring board 51, and the like. It is electrically connected via. The wiring board 43 on which the front light source 42 is mounted is attached and fixed to a casing 97 having an opening provided in the facing plate 92 as shown in FIGS.

  The back light source 41 includes a display light source 41a for displaying the measurement display unit 27 and a pointer light source 41b for illuminating the pointer 62, as shown in FIGS. The display light source 41a according to the present embodiment is an LED that emits white light, and the pointer light source 41b is an LED that emits red light. As shown in FIGS. 2 and 3, the back light source 41 is surrounded by a support portion 96, and the design portion where the light emitted from the back light source 41 does not correspond to the back light source 41 in the dial 20. 23 is suppressed from being irradiated.

  The front light source 42 includes a plurality of LEDs each having a different light color. As shown in FIG. 6, the front light source 42 according to the present embodiment includes a red LED 42a that emits red light, a yellow LED 42b that emits yellow light, a green LED 42c that emits green light, and a white light that emits white light. LED 42d. A set of LEDs 42 a to 42 d constituted by these four LEDs 42 a to 42 d are arranged in a line in the direction from the speedometer 10 to the tachometer 11. The illuminance of each of these LEDs 42 a to 42 d is lower than the illuminance of the back light source 41. Specifically, the illuminance of the LEDs 42 a to 42 d is about one-tenth of the illuminance of the back light source 41. The front light source 42 irradiates the front surface 20 b of the dial 20 with light having the same color as the light emitted from the colored light source 45 in conjunction with the lighting of the colored light source 45 described later. Since the lighting operation of the front light source 42 is a characteristic point of the combination meter 100 according to the present embodiment, it will be described in detail later.

  The circuit board 50 includes a wiring board 51, a control unit 52, and a rotation unit 53. The wiring board 51 is formed by forming a wiring pattern on a printed board, and a control unit 52 and a rotation unit 53 are mounted on the back surface 51a of the wiring board 51, and a back light source 41 is mounted on the front surface 51b. . The wiring board 51 is formed with a through hole 51c penetrating the back surface 51a and the front surface 51b, and a support shaft 61 of a pointer 60 described later is inserted into the through hole 51c.

  The control unit 52 controls the lighting state of the light source 40 and the driving of the rotation unit 53, and the rotation unit 53 rotates the pointer 60. The control unit 52 controls turning on and off of the light source 40 according to the vehicle state, and controls driving of the rotating unit 53 according to the vehicle speed. A lighting operation of the front light source 42 described later is performed by the control unit 52.

  The pointer 60 includes a support shaft 61, a pointer 62, and a cover 63. One end of the support shaft 61 is connected to the rotating portion 53, and the other end is connected to the pointer 62. When the support shaft 61 is rotated by the driving force of the rotation unit 53, the pointer 62 rotates on the dial 20 as the support shaft 61 rotates.

  The pointer 62 is formed of a light transmissive member. A slope for reflecting the light emitted from the pointer light source 41b to the end on the measurement display unit 27 side is formed at the end of the pointer 62 on the support shaft 61 side. When the light emitted from the pointer light source 41b is incident on the pointer 62 through the through hole 21c, the light incident on the pointer 62 is reflected on the end of the pointer 62 on the measurement display unit 27 side by the slope described above. As a result, the pointer 62 is displayed in red. The pointer 62 corresponds to the light guide unit described in the claims.

  The cover 63 is formed of a resin having a light shielding property, and the surface thereof is coated with a paint having a light reflecting property. The cover 63 is provided on the pointer 62 so as to cover a connecting portion of the pointer 62 with the support shaft 61 and both side surfaces along the longitudinal direction of the pointer 62. When the light emitted from the front light source 42 enters the surface of the cover 63, the surface of the cover 63 is displayed in the same color as the light emitted from the front light source 42.

  Next, constituent elements different from the constituent elements constituting the tachometer 11 in the constituent elements constituting the speedometer 10 will be described. In addition, the different component shown below is unrelated to the function which displays the traveling speed and engine speed which are the functions of the speedometer 10 and the tachometer 11, respectively. Therefore, the tachometer 11 may have components that only the speedometer 10 has, or the speedometer 10 may have components that only the tachometer 11 has. These constituent elements can be appropriately changed in the content relationship.

  As shown in FIGS. 1 and 2, the transparent substrate 21 of the speedometer 10 is formed with a rectangular cutout portion 21d, and a liquid crystal display that is a component of the image display unit 70 is formed in the cutout portion 21d. A portion 71 is provided. The edge of the liquid crystal display unit 71 is covered with the edge of the cutout part 21 d, and the edge forming the liquid crystal part of the liquid crystal display unit 71 is formed by the reflection part 22 of the transparent substrate 21.

  The back light source 41 of the speedometer 10 includes a liquid crystal light source 41c that illuminates the liquid crystal display unit 71 in addition to the display light source 41a and the pointer light source 41b. The liquid crystal light source 41c is an LED that emits white light.

  In addition to the back light source 41, the control unit 52, and the rotation unit 53, a processing unit 72 that processes the segment display of the liquid crystal display unit 71 is mounted on the wiring board 51 of the speedometer 10.

  Next, constituent elements different from the constituent elements constituting the speedometer 10 in the constituent elements constituting the tachometer 11 will be described.

  The design part 23 of the tachometer 11 has a mark 28 indicating the vehicle state in addition to the measurement display part 27 for displaying measurement information. The mark 28 includes a warning mark 29 indicating a warning state, a caution mark 30 indicating a caution state, and an economic mark 31 indicating an economic state. Each of the marks 29 to 31 has a priority, the warning mark 29 has a higher priority than the caution mark 30, and the caution mark 30 has a higher priority than the economic mark 31. The economic state has a higher priority than the normal state indicating that the vehicle is in the normal state, and the normal state has the lowest priority. The warning mark 29 has a brake mark 29a and a seat belt mark 29b. The caution mark 30 includes a check engine mark 30a and a fuel remaining amount mark 30b. The economic mark 31 has an ECO mark 31a. The mark 28 displays the vehicle state, and has an operation mark 32 for displaying the vehicle operation in addition to the priority marks 29 to 31. The operation mark 32 has a turn operation mark 32 a, and the turn operation mark 32 a is formed on the turning member 90. The operation mark 32 has no priority.

  The back light source 41 of the tachometer 11 includes a colored light source 45 that illuminates the mark 28 in addition to the display light source 41a and the pointer light source 41b. As shown in FIG. 5, the colored light source 45 includes a warning color light source 45 a that illuminates the warning mark 29, a caution color light source 45 b that illuminates the caution mark 30, and an economic color light source 45 c that illuminates the economic mark 31. . Each of the light sources 45a to 45c has a priority, the warning color light source 45a has a higher priority than the caution color light source 45b, and the caution color light source 45b has a higher priority than the economic color light source 45c. The warning color light source 45a according to the present embodiment is an LED that emits red light, the attention color light source 45b is an LED that emits yellow light, and the economic color light source 45c is an LED that emits green light. The colored light source 45 includes an operation color light source 45d that irradiates the operation mark 32 in addition to the light sources 45a to 45c described above. The working color light source 45d is an LED that emits orange light. The working color light source 45d has no priority.

  Next, the image display unit 70 and the indicator 80 will be described. The image display unit 70 includes a liquid crystal display unit 71 that displays the travel distance of the vehicle, and a processing unit 72 that processes an image displayed on the liquid crystal display unit 71. The liquid crystal display unit 71 displays the mileage of the vehicle by the segment method. As shown in FIG. 1, the TRIP segment 73 indicating the section travel distance and the ODO segment 74 indicating the total travel distance are displayed on the left side of the liquid crystal display unit 71, and the TRIP segment is displayed on the right side of the liquid crystal display unit 71. A km segment 75 corresponding to the segment 73 and a km segment 76 corresponding to the ODO segment 74 are displayed. In the center of the liquid crystal display unit 71, a plurality of symbol segments 77 capable of displaying numerical values and symbols and a decimal point segment 78 are displayed. The symbol segment 77 is composed of seven segments in the shape of a “day” character. Various combinations of segments constituting the “date” character are lit and blinked to display numerical values and symbols. .

  The processing unit 72 controls the lighting and blinking of the segments 73 to 78 by performing predetermined arithmetic processing in response to output signals of various sensors mounted on the vehicle, reset information and switching information of various switches, and the like. To do. The processing unit 72 includes a microcomputer including a CPU, ROM, and RAM, a peripheral circuit, and the like.

  The indicator 80 includes an indicator mark that indicates a vehicle state and a light source that illuminates the indicator mark. The indicator mark corresponds to the mark 28, and the light source that illuminates the indicator mark corresponds to the colored light source 45.

  Next, the lighting operation of the front light source 42, which is a characteristic point of the present embodiment, will be described. As described above, the front light source 42 is turned on in conjunction with the lighting of the colored light source 45. The front light source 42 irradiates the front surface 20 b of the dial 20 with light having the same color as the light emitted from the colored light source 45. In this embodiment, the light of the front light source 42 is irradiated on the entire dial 20 of each of the speedometer 10 and the tachometer 11. Accordingly, the front light source 42 displays all of the reflecting portions 22 of the speedometer 10 and the tachometer 11 in the color of light emitted from the front light source 42. Hereinafter, the lighting operation of the front light source 42 when the marks 29 to 31 having different priorities are lit and displayed by the light sources 45a to 45c will be described.

  For example, when the warning mark 29 having the highest priority is displayed in red by the warning color light source 45a, the red LED 42a of the front light source 42 is turned on. As a result, the light of the red LED 42a is applied to the front surface 20b of the dial plate 20, and the reflecting portion 22 is displayed in red. That is, the reflection part 22 is displayed in the same color as the warning mark 29 displayed in red by the warning color light source 45a.

  When the attention mark 30 having the second highest priority is displayed in yellow by the attention color light source 45b, the yellow LED 42b of the front light source 42 is turned on. As a result, the light from the yellow LED 42b is applied to the front surface 20b of the dial plate 20, and the reflecting portion 22 is displayed in yellow. That is, the reflection part 22 is displayed in the same color as the caution mark 30 displayed in yellow by the caution color light source 45b.

  When the economic mark 31 having the third highest priority is displayed in green by the economic color light source 45c, the green LED 42c of the front light source 42 is turned on. As a result, the light of the green LED 42c is irradiated on the front surface 20b of the dial plate 20, and the reflecting portion 22 is displayed in green. That is, the reflection part 22 is displayed in the same color as the economic mark 31 displayed in green by the economic color light source 45c.

  When a plurality of marks 28 having different priorities are lit and displayed simultaneously (when a plurality of colored light sources 45 having different priorities are lit simultaneously), among the colored light sources 45 that are lit simultaneously, the colored light source 45 having the highest priority. Light of the same color as that of the light emitted from the front light source 42 is emitted. Then, after the light having the same color as the light emitted from the colored light source 45 having the highest priority is emitted from the front light source 42 for a predetermined time, the colored light source 45 having a low priority among the plurality of colored light sources 45 that are turned on simultaneously. The same light color as the light emitted from the light source 45 is sequentially emitted from the front light source 42 for a predetermined time.

  For example, when the warning mark 29 and the caution mark 30 are turned on at the same time, the red LED 42a of the front light source 42 is turned on to display the vehicle state with the highest priority. Then, after the red LED 42a is lit for a predetermined time, the yellow LED 42b is lit for a predetermined time in order to display the vehicle state having the second highest priority. Hereinafter, the red LED 42a and the yellow LED 42b are alternately turned on for a predetermined time sequentially.

  In addition, when the attention mark 30 and the economic mark 31 are turned on at the same time, the yellow LED 42b of the front light source 42 is turned on in order to report the vehicle state having the second highest priority. Then, after the yellow LED 42b is lit for a predetermined time, the green LED 42c is lit for a predetermined time in order to report a vehicle state having the third highest priority. Hereinafter, it is sequentially repeated that the yellow LED 42b and the green LED 42c are alternately lit for a predetermined time.

  Further, when the warning mark 29 and the economic mark 31 are turned on at the same time, the red LED 42a of the front light source 42 is turned on in order to report the vehicle state with the highest priority. Then, after the red LED 42a is lit for a predetermined time, the green LED 42c is lit for a predetermined time in order to report the vehicle state having the third highest priority. Hereinafter, it is sequentially repeated that the red LED 42a and the green LED 42c are alternately lit for a predetermined time.

  Furthermore, when the warning mark 29, the caution mark 30, and the economic mark 31 are turned on at the same time, the red LED 42a of the front light source 42 is turned on. Then, after the red LED 42a is lit for a predetermined time, the yellow LED 42b is lit for a predetermined time. Finally, after the yellow LED 42b is lit for a predetermined time, the green LED 42c is lit for a predetermined time. Hereinafter, according to the lighting sequence described above, it is sequentially repeated that any one of the LEDs 42a to 42c is lit for a predetermined time.

  When the vehicle is in a normal state, the white LED 42d of the front light source 42 is turned on, and the light of the white LED 42d is applied to the front surface 20b of the dial plate 20.

  Next, the function and effect of the combination meter 100 according to the present embodiment will be described. As described above, the light of the color corresponding to the mark 28 that is lit up is irradiated from the front light source 42 to the entire front surface 20 b of the dial 20. As a result, the reflecting portion 22 of the dial 20 is displayed in the same color as the lit mark 28. As described above, the color representing the vehicle state is displayed not only on the mark 28 but also on the reflecting portion 22, so that the visibility of the vehicle state is improved.

  Moreover, since the reflection part 22 itself which is a part of the dial 20 fulfills the function of displaying the vehicle state, the dial has a character compared to a configuration having a decorative part that reflects light emitted from the front light source. An increase in the size of the board 20 is suppressed. As a result, the increase in the physique of the combination meter 100 is suppressed.

  When the plurality of colored light sources 45 having different priorities are turned on simultaneously, the front light source 42 is light having the same color as the light emitted from the colored light source 45 having the highest priority among the colored light sources 45 that are simultaneously turned on. Emits light. Thereby, the visibility of the colored light source 45 with the highest priority is improved.

  The front light source 42 emits the colored light source 45 having the highest priority among the colored light sources 45 lit simultaneously for a predetermined time, and then emits the colored light source 45 having the lower priority among the colored light sources lit simultaneously for a predetermined time. , And so on. According to this, the recognizability of a plurality of vehicle states is improved.

  In the present embodiment, the entire front surface 20 b of the dial 20 is illuminated by the front light source 42, but the illuminance of the front light source 42 is lower than the illuminance of the colored light source 45. According to this, the visibility of the mark 28 illuminated by the colored light source 45 is suppressed from being lowered by the light of the front light source 42.

  A cover 63 covering the pointer 62 is formed of a light-shielding resin, and the surface thereof is coated with a light-reflecting paint. According to this, when the light emitted from the front light source 42 enters the surface of the cover 63, the surface of the cover 63 is displayed in the same color as the light emitted from the front light source 42. According to this, since the area where the color representing the vehicle state is displayed is increased by the front light source 42, the visibility of the vehicle state is improved.

  The edge of the liquid crystal display unit 71 is covered by the edge of the cutout part 21 d formed on the transparent substrate 21 of the speedometer 10, and the edge forming the liquid crystal part of the liquid crystal display unit 71 is the reflection part 22 of the transparent substrate 21. Is formed by. According to this, since the edge of the liquid crystal display unit 71 is displayed in the same color as the light emitted from the front light source 42, the vehicle state can be observed simultaneously with the observation of the liquid crystal display unit 71.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

  In this embodiment, the dial 20 has shown the example which has the reflection part 22 and the design part 23. FIG. However, as shown in FIGS. 7 and 8, the dial plate 20 may include a transparent substrate 21, a light shielding portion 33, and a design portion 23. In the case of this modification, the back surface 21a of the transparent substrate 21 has a light diffusion layer that reduces illumination unevenness of the design portion 23, or a light shielding that suppresses light emitted from the back surface 21a side from being emitted from the reflection portion 22. The reflective layer which improves the illumination brightness of the layer and the design part 23 is formed, and the coating materials 24 to 26 forming the above-described light shielding part 33 and the design part 23 are applied to the front surface 21b. As shown in FIG. 7, the reflective paint 26 is applied to the formation area of the measurement display section 27 on the front surface 21b, and the translucent paint 25 is applied to the formation area of the mark 28 on the front surface 21b as shown in FIG. Then, the light-shielding paint 24 is applied to the coating regions 25 and 26 and the formation region of the light-shielding portion 33 in the front surface 21 b exposed from the paints 25 and 26. As described above, the outer shapes of the measurement display unit 27 and the mark 28 are formed by the light-shielding paint 24, and the outer surface of the light-shielding part 33 is formed by the light-shielding paint 24. Further, the inside of the measurement display unit 27 is formed by the reflective paint 26, and the inside of the mark 28 is formed by the semi-transmissive paint 25.

  As described above, when light is irradiated on the back surface 20 a of the dial 20, light is emitted from the inside of the mark 28, and when light is irradiated on the front surface 20 b of the dial 20, the light is reflected by the measurement display unit 27. The light is absorbed by the light shielding portion 33. Therefore, the mark 28 is displayed in the color of light that irradiates the back surface 20a, the measurement display unit 27 is displayed in the color of light that irradiates the front surface 20b, and the light shielding unit 33 is displayed in black.

  Thus, in the above-described modification, the color representing the vehicle state is displayed not only on the mark 28 but also on the measurement display unit 27, so that the visibility of the vehicle state is improved. In addition, since the measurement display unit 27 itself that is a part of the dial 20 functions to display the vehicle state, the dial has a decoration unit that reflects the light emitted from the front light source. An increase in the size of the dial 20 is suppressed. As a result, the increase in the physique of the combination meter 100 is suppressed. The light-shielding portion 33 of the above modification is configured by a part of each of the light-shielding paint 24 and the reflective paint 26 applied to the front surface 21b and the light-shielding paint 24 applied to each of the light-shielding paint 24 and the reflective paint 26. The opaque plate described in the claims is formed by the light shielding portion 33 and the transparent substrate 21 on which the light shielding portion 33 is formed. 7 and 8 are diagrams for explaining a modification of the dial.

  In addition, when the dial 20 is the structure which has the light-shielding part 33 and the design part 23, the structure shown in FIG. 9 is also employable. In the case of this modification, the light-shielding paint 24 is applied to the formation region of the light-shielding portion 33 on the front surface 21b, and the semi-transmissive paint 25 having semi-transparency is formed on the surface of the design region 23 and the light-shielding coating material 24 on the front surface 21b. Applied. Then, the reflective paint 26 is applied to the formation region of the design portion 23 in the semi-transmissive paint 25 so that the end of the light-shielding paint 24 applied to the front surface 21b can be observed through the semi-transmissive paint 25. The light-shielding paint 24 is applied to a part of the reflective paint 26 and the formation region of the light-shielding portion 33 in the semi-transmissive paint 25 so that the edge is exposed to the outside. As described above, the outer shape of the design portion 23 is formed by the light-shielding paint 24 and a part of the reflective paint 26, and the inside of the design portion 23 is formed by the semi-transmissive paint 25. The outer surface of the light shielding portion 33 is formed by the light shielding paint 24 applied to the semi-transmissive paint 25.

  By the above, when light is irradiated to the back surface 20a of the dial 20, light is emitted from the inside of the design part 23, and when light is irradiated to the front 20b of the dial 20, the inner edge of the design part 23 Light is reflected, and light is absorbed by the outer edge of the design portion 23 and the light shielding portion 33. Therefore, the inner side of the design portion 23 is displayed in the color of light that irradiates the back surface 20a, the inner edge of the design portion 23 is displayed in the color of the light that irradiates the front surface 20b, and the outer edge of the design portion 23 and The light shielding portion 33 is displayed in black. Also by this, since the color representing the vehicle state is displayed not only on the mark 28 but also on the edge of the design portion 23, the visibility of the vehicle state is improved. Moreover, since the design part 23 itself which is a part of the dial 20 functions to display the vehicle state, the dial has a character compared to a configuration having a decorative part that reflects light emitted from the front light source. An increase in the size of the board 20 is suppressed. As a result, the increase in the physique of the combination meter 100 is suppressed. The light-shielding portion 33 of the above modification is configured by a part of the light-shielding paint 24 applied to the front surface 21b, the semi-transmissive paint 25, and the light-shielding paint 24 applied to the semi-transmissive paint 25. The opaque plate according to the claims is formed by the light shielding portion 33 and the transparent substrate 21 on which the light shielding portion 33 is formed. 9A and 9B are diagrams for explaining a modification of the dial, in which FIG. 9A is an enlarged front view, and FIG. 9B is a cross-sectional view taken along line IXb-IXb.

  In this embodiment, when the warning mark 29 with the highest priority is displayed in red by the warning color light source 45a, the red LED 42a of the front light source 42 is turned on. However, when the warning mark 29 is displayed in red by the warning color light source 45a, the red LED 42a of the front light source 42 may blink. According to this, the visibility in the warning state is improved.

  In this embodiment, the structure which improves the recognizability of the vehicle state visually is shown. However, for example, when the warning mark 29 is displayed in red by the warning color light source 45a, a warning sound part (not shown) that emits a warning sound may be included. This improves the recognizability of the warning state.

  In this embodiment, the example in which the light of the front light source 42 is irradiated on the entire surface of the dial 20 of each of the speedometer 10 and the tachometer 11 is shown. However, the light from the front light source 42 is not limited to the above example as long as it irradiates the area including the reflection portion 22 in the dial 20. For example, only the dial 20 of the speedometer 10 or only the dial 20 of the tachometer 11 may be irradiated with light from the front light source 42. When only the dial 20 of the speedometer 10 is irradiated with light, any one of the LEDs 42a to 42d on the speedometer 10 side in the front light source 42 is turned on, and only the dial 20 of the tachometer 11 is irradiated with light. When doing so, any one of the LEDs 42a to 42d on the tachometer 11 side in the front light source 42 is turned on.

  In the present embodiment, an example in which the illuminance of each of the LEDs 42 a to 42 d configuring the front light source 42 is lower than the illuminance of the back light source 41 is shown. However, in the case where only the dial 20 of the speedometer 10 on which the mark 28 is not formed is irradiated with light from the front light source 42, the illuminance of the front light source 42 is equal to or higher than the illuminance of the rear light source 41. Illuminance can be employed. According to this, since the light of the front light source 42 is not irradiated on the mark 28 formed on the dial 20 of the tachometer 11, the visibility of the mark 28 illuminated by the colored light source 45 is lowered by the light of the front light source 42. Is suppressed.

  In the present embodiment, the surface shape of the reflection portion 22 is not particularly mentioned, but the shape is formed in a satin finish or a substantially parallel or arcuate stripe shape. According to this, unevenness is formed on the surface of the reflection portion 22, and the light irradiated from the front light source 42 is irregularly reflected by the unevenness, so that the antiglare property is improved. In the stripe forming portion, the reflected light can be displayed in a stripe shape. In addition, when a semi-light-transmitting / semi-light-reflective metallic paint is used as the reflective paint 26, it can be displayed in a metallic glossy appearance.

  In the present embodiment, the semi-transmission property of the semi-transparent coating material 25 is not particularly mentioned, but its property is to transmit / reflect light of a specific wavelength. For example, when light including light of various wavelengths such as external light is incident on the semi-transmissive paint 25, only light of a specific wavelength included in the external light is transmitted / reflected. As a result, when external light is applied to the semi-transmissive paint 25, the semi-transmissive paint 25 is displayed dimly. In this embodiment, since the inner side of the design part 23 is formed by the translucent paint 25, when the design part 23 is not illuminated by the back light source 41, the inner side of the design part 23 is displayed dimly. Thereby, when the back light source 41 is not turned on, the design unit 23 becomes difficult to be observed by the driver who is an observer, so it is easy to determine whether or not the back light source 41 is turned on.

  In this embodiment, the warning mark 29 has shown the example which has the brake mark 29a and the seatbelt mark 29b. However, the mark included in the warning mark 29 is not limited to the above example, and may include, for example, a battery mark or an airbag mark. Moreover, in this embodiment, the caution mark 30 showed the example which has the check engine mark 30a and the fuel remaining amount mark 30b. However, the mark included in the caution mark 30 is not limited to the above example, and may include, for example, an ABS mark or a smart key mark.

  In the present embodiment, an example in which the speedometer 10 is provided with the image display unit 70 is shown. However, the image display unit 70 may be provided on the look-back member 90 or the tachometer 11.

  In the present embodiment, an example in which the mark 28 is provided on the tachometer 11 and the turning member 90 is shown. However, the mark 28 may be provided on the speedometer 10.

  In the present embodiment, the example in which the combination meter 100 includes the speedometer 10 and the tachometer 11 is shown. However, the combination meter 100 may have a FUEL gauge or a TEMP gauge.

  In this embodiment, the example in which each of the back light source 41 and the front light source 42 is formed by LEDs has been shown. However, each of the back light source 41 and the front light source 42 may not be formed by LEDs. Each of the light sources 41 and 42 may be configured to include, for example, a halogen lamp and a colored filter that emits light having a specific wavelength (colored light) out of light emitted from the halogen lamp. The colored filter described above has light transmissivity such as red and yellow.

  Further, in the present embodiment, the color emitted by each LED constituting the light sources 41 and 42 is defined, but the light of the same color as the color emitted by each LED constituting the light sources 45a to 45c having priority. If each LED constituting the front light source 42 emits light, the color emitted by each LED constituting the light sources 41 and 42 can be appropriately changed according to the setting.

  The combination meter 100 according to the present embodiment may include a decoration ring and an EL display unit. In this case, it is preferable to apply the reflective paint 26 that forms the reflective portion 22 shown in the present embodiment to the decorative ring and the EL display portion. In this case, the reflective paint 26 may be applied to the entire surface of the EL display unit or a part of the edge of the EL display unit. According to this, the color indicating the vehicle state is also reflected and displayed on the decorative ring and the EL display unit.

  In addition, when the mark 28 has the normal mark which shows the normal state of a vehicle, the colored light source 45 has a normal color light source which illuminates a normal mark.

DESCRIPTION OF SYMBOLS 10 ... Speedometer 11 ... Tachometer 22 ... Reflection part 23 ... Design part 24 ... Measurement display part 28 ... Mark 41 ... Back light source 42 ... Front light source 45 ... -Colored light source 90 ... turning member 92 ... turning plate 100 ... combination meter

Claims (11)

A back light source;
A vehicle display device comprising a dial whose back surface is illuminated by the back light source,
A front light source that illuminates the front of the dial on the observer side;
The dial has a reflector that reflects the light of the front light source to an observer, and a design portion illuminated by the back light source,
The design part has a plurality of marks for displaying the vehicle state,
The back light source has a plurality of colored light sources that irradiate the mark with light of a color corresponding to the mark,
The front light source is provided at a predetermined distance from the dial, and a region in front of the dial illuminated by the front light source is a region including at least a part of the reflector on the front of the dial. ,
The front light source emits light of the same color as the light emitted by the colored light source in conjunction with the light emission of the colored light source ,
The vehicle state has a plurality of states with different priorities,
The mark has a plurality of marks with different priorities,
The colored light source has a plurality of colored light sources according to each of a plurality of marks having different priorities,
When the plurality of colored light sources having different priorities are turned on simultaneously, the front light source has the same color as the light emitted from the colored light source having the highest priority among the colored light sources that are simultaneously turned on. Is turned on or blinking for a predetermined time . A back light source;
A vehicle display device comprising a dial whose back surface is illuminated by the back light source,
A front light source that illuminates the front of the dial on the observer side;
The dial has an impermeable plate and a design portion,
The design part has a plurality of marks for displaying a vehicle state and a measurement display part for displaying measurement information, respectively.
The back light source includes a plurality of colored light sources that irradiate the mark with light of a color corresponding to the mark and a display light source that irradiates the measurement display unit with light.
The measurement display unit includes a transmission unit that transmits light from the display light source, and a reflection unit that reflects light from the front light source.
The front light source is provided at a predetermined distance from the dial, and a front area of the dial illuminated by the front light source is an area including at least one of the measurement display units on the front of the dial. Yes,
The front light source emits light of the same color as the light emitted by the colored light source in conjunction with the light emission of the colored light source ,
The vehicle state has a plurality of states with different priorities,
The mark has a plurality of marks with different priorities,
The colored light source has a plurality of colored light sources according to each of a plurality of marks having different priorities,
When the plurality of colored light sources having different priorities are turned on simultaneously, the front light source has the same color as the light emitted from the colored light source having the highest priority among the colored light sources that are simultaneously turned on. Is turned on or blinking for a predetermined time . The front light source , when a plurality of colored light sources with different priorities are turned on simultaneously, after lighting or blinking light of the same color as the light emitted by the colored light source with the highest priority for a predetermined time, Sequentially repeating lighting or blinking light of the same color as the light of the colored light source with lower priority than the colored light source with higher priority among the colored light sources that are simultaneously lit. The vehicle display device according to claim 1, wherein the display device is a vehicle display device. The vehicular display device according to any one of claims 1 to 3 , further comprising an alarm part that emits a warning sound when the colored light source having the highest priority is turned on . The vehicle state includes a warning state, a caution state, an economic state, and a normal state. The warning state has a higher priority than the caution state, and the caution state has a higher priority than the economic state. the economic situation is the display device for a vehicle according to item 1 or one of claims 1-4, characterized in that a higher priority than the normal state. The colored light source emits a warning color light source that emits light of a color according to the warning state, a caution color light source that emits light of a color according to the caution state, and a light of a color according to the economic state The vehicle display device according to claim 5 , further comprising an economical color light source . The vehicle display device according to claim 6 , wherein the colored light source includes a normal color light source that emits light of a color corresponding to the normal state . The illuminance of the front light source is lower than the illuminance of the colored light source, The vehicle display device according to any one of claims 1 to 7 . The mark has a transmission part that transmits light of the colored light source, and a reflection part that reflects light of the front light source,
Region including the mark on the front of the dial is the display device for a vehicle according to claim 8, characterized in Rukoto illuminated by the front light source. The vehicle display device according to any one of claims 1 to 9 , wherein a region excluding the mark illuminated by the colored light source in front of the dial is illuminated by the front light source . The design part has a plurality of measurement display parts for displaying measurement information,
The dial is provided with a pointer indicating the measurement display unit,
The back light source has a plurality of display light sources for irradiating light to the measurement display unit, and a pointer light source for illuminating the pointer,
The pointer has a light guiding portion which is illuminated by the light of the guidelines light source, according to claim 10 any one, characterized in Rukoto to have a, a cover which reflects light of the front light source Vehicle display device.

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