WO2018012141A1

WO2018012141A1 - Onboard display device

Info

Publication number: WO2018012141A1
Application number: PCT/JP2017/020742
Authority: WO
Inventors: 盛吾種; 正実間瀬; 高行柴田; 覚田村; 克己藤田
Original assignee: 株式会社デンソー
Priority date: 2016-07-14
Filing date: 2017-06-05
Publication date: 2018-01-18
Also published as: JP2018009900A; JP6504124B2

Abstract

In the present invention, a display panel (120) displays an indicator image (122a, 122b) in which a plurality of display indicators are formed side by side in the circumferential direction, and a background image (123a, 123b, 2123a, 3123a) forming a background of the indicator image. A rotational pointer (141) rotates in front of the display panel to denote a display indicator, and emits light so as to be visible by turning on a built-in pointer light source unit (143). A drive unit (150) drives the rotational pointer. A control unit (170) controls a display state of the indicator image and background image on the display panel, a light emission state of the rotational pointer from the pointer light source unit, and a drive state of the rotational pointer from the drive unit. The control unit (170) variably controls, in accordance with the rotational position of the rotational pointer, the display color of the background image to be combined with the light-emitting color of the rotational pointer.

Description

Vehicle display device

Cross-reference of related applications

This application is based on Japanese Patent Application No. 2016-139717 filed on July 14, 2016, the contents of which are incorporated herein by reference.

The present disclosure relates to a vehicle display device mounted on a vehicle.

In general, in a vehicle display device, a rotation pointer arranged to be rotatable in a circumferential direction in front of a display panel is rotationally driven by a drive unit. As a result, the rotation pointer indicates one of the display indexes formed side by side in the circumferential direction of the display panel and displayed so as to be visible from the front according to the rotation position.

In the device disclosed in Patent Document 1 as a kind of such a display device for a vehicle, the rotating pointer emits light so as to be visible from the front by turning on the pointer light source unit built in the rotating pointer. According to this, since it becomes difficult for light to be attenuated before reaching the front viewer from the pointer light source unit in the lit state in the emitted rotation pointer, it is possible to improve the gaze on the rotation pointer.

However, in the vehicle display device disclosed in Patent Document 1, the background color of the display index on the display panel is not changed by printing or the like. Therefore, the gazeability with respect to the rotation pointer is limited to that depending on the lighting state of the pointer light source unit.

Japanese Patent No. 4259250

This disclosure is intended to provide a display device for a vehicle in which the gaze of a rotation pointer is improved.

The vehicle display device according to the first aspect of the present disclosure is mounted on a vehicle. The vehicle display device includes a display panel that displays an indicator image formed by arranging a plurality of display indicators in a circumferential direction and a background image forming a background of the indicator image so as to be visible from the front. The vehicle display device is disposed in front of the display panel so as to be rotatable in the circumferential direction and capable of indicating the display index, and can be viewed from the front by turning on a built-in pointer light source unit. A rotation pointer that emits light is further provided. The vehicular display device further includes a drive unit that rotationally drives the rotation pointer. The vehicle display device includes a display state of the index image and the background image on the display panel, a light emission state of the rotation pointer by the pointer light source unit, and a rotation driving state of the rotation pointer by the drive unit. A control unit for controlling is further provided. The control unit variably controls the display color of the background image combined with the emission color of the rotation pointer according to the rotation position of the rotation pointer.

The above and other objects, features and advantages of the present disclosure will become more apparent from the following detailed description with reference to the accompanying drawings. The drawing
It is a perspective view which shows the display apparatus for vehicles of 1st embodiment. FIG. 2 is a sectional view taken along line II-II in FIG. It is a front view which expands and shows a part of display apparatus for vehicles in FIG. FIG. 3 is an enlarged cross-sectional view showing a part of each of a pointer unit and a drive unit in FIG. 2. FIG. 3 is a front view showing the drive unit of FIG. 2. It is a front view which shows a part of rotation guide of FIG. It is the VII-VII sectional view taken on the line of FIG. It is a front view which expands and shows a part of display panel in FIG. It is a front view which expands and shows a part of display panel in 2nd embodiment. It is a front view which expands and shows a part of display apparatus for vehicles in a second embodiment. It is a front view which expands and shows a part of display panel in 3rd embodiment. It is a front view which expands and shows a part of display apparatus for vehicles in a third embodiment.

Hereinafter, a plurality of embodiments of the present disclosure will be described with reference to the drawings. In addition, the overlapping description may be abbreviate | omitted by attaching | subjecting the same code | symbol to the corresponding component in each embodiment. When only a part of the configuration is described in each embodiment, the configuration of the other embodiment described above can be applied to the other part of the configuration. Moreover, not only the combination of the configurations explicitly described in the description of each embodiment, but also the configuration of a plurality of embodiments can be partially combined even if they are not explicitly described, as long as there is no problem in the combination.

(First embodiment)
As shown in FIG. 1, the vehicle display device 100 according to the first embodiment of the present disclosure is mounted on a vehicle. The vehicle display device 100 is a combination meter that performs display for a viewer who is an occupant seated in a seat in the vehicle. For such display, the vehicle display device 100 is installed on an instrument panel in the vehicle. Here, “front” in the vehicle display device 100 indicates a direction in which display is performed for a viewer in the vehicle, that is, a viewer's viewing side.

1 and 2, the vehicle display device 100 includes a display case 110, a display panel 120, a pointer unit 140, a drive unit 150, and a control unit 170. The display case 110 is configured from a plurality of resin members in a hollow box shape. The display case 110 forms a display window 111 that opens forward when installed on the instrument panel.

The display panel 120 is, for example, a liquid crystal panel or an organic EL panel, and is formed in a substantially rectangular plate shape as a whole. The display panel 120 is accommodated in the display case 110 and is held by the case 110. The display panel 120 has a screen 121 exposed forward through the display window 111. As shown in FIG. 1, the display panel 120 displays various color images such as the

index images

122a and 122b and the

background images

123a and 123b on the screen 121 so as to be visible from a front viewer. At this time, the screen 121 is transmitted and illuminated by the backlight built in the display panel 120 in the display state of the

index images

122a and 122b and the

background images

123a and 123b.

1 and 3, the

index images

122a and 122b form

numerical indexes

124a and 124b and

scale indexes

125a and 125b, respectively, as display indexes related to the vehicle. Here, in the present embodiment, an index image 122a for informing vehicle speed information of the vehicle is displayed on the circular display unit 121a set on one side of the screen 121 in the horizontal direction. The indicator image 122a is formed by arranging a plurality of numerical indicators 124a and scale indicators 125a corresponding to the vehicle speed information in the circumferential direction along the outer peripheral edge of the display portion 121a. On the other hand, an indicator image 122b for informing vehicle engine speed information is displayed on the circular display portion 121b set on the other side of the screen 121 in the horizontal direction. The index image 122b is formed by arranging a plurality of numerical indexes 124b and scale indexes 125b corresponding to the engine speed information in the circumferential direction along the outer peripheral edge of the display portion 121b.

The

background images

123a and 123b form the backgrounds of the

corresponding index images

122a and 122b in the

circular display portions

121a and 121b, respectively. In particular, in each of the

circular display portions

121a and 121b of the present embodiment, the display colors of the

background images

123a and 123b are variably controlled in order to improve the gazeability with respect to the rotation pointer 141 described in detail later. Yes.

The pointer unit 140 and the drive unit 150 shown in FIGS. 1 and 2 are provided one by one corresponding to each of the

circular display portions

121a and 121b and having substantially the same configuration. In addition, a control unit 170 is provided in common with the pointer unit 140 and the drive unit 150 of each of the

circular display portions

121a and 121b. Therefore, hereinafter, the pointer unit 140 and the drive unit 150 will be described on the circular display unit 121a side as a representative. In the following, the control unit 170 will be described as a representative of the relationship between the pointer unit 140 and the drive unit 150 on the circular display portion 121a side.

As shown in FIGS. 1 to 5, the pointer unit 140 includes a rotation pointer 141 and a movable gear 142. The rotation pointer 141 is formed in an elongated plate shape that is transparent or semi-transparent as a whole (hereinafter simply referred to as “transparent or translucent”). The rotation pointer 141 is accommodated in front of the display panel 120 in the display case 110. As shown in FIGS. 1 to 3, the rotation pointer 141 is disposed so as to be rotatable in the circumferential direction of the display portion 121a while maintaining a state of extending along the radial direction of the circular display portion 121a. The rotation pointer 141 can indicate the

formation indexes

124a and 125a of the index image 122a corresponding to its rotation position in order to display the vehicle speed information of the vehicle.

As shown in FIGS. 4 to 7, the rotation pointer 141 has a plurality of pointer light source sections 143 built therein. The pointer light source units 143 are arranged at equal intervals in the longitudinal direction of the rotation pointer 141 (that is, the radial direction of the circular display unit 121a). Each pointer light source unit 143 is formed in a size that is difficult for a viewer to visually recognize from the front (for example, a diameter of about 100 μm). However, in FIGS. 4 to 7, each pointer light source unit 143 is schematically drawn larger than the actual size in order to facilitate understanding of the explanation.

Each pointer light source unit 143 is composed of LED light sources of three colors, which are red, green and blue in this embodiment. Each pointer light source unit 143 is turned on in response to energization of at least one of the three color LED light sources, thereby causing the built-in portion of the rotation pointer 141 to emit light so that it can be viewed from the front viewer. Here, as shown in FIGS. 4, 6, and 7, each pointer light source unit 143 of the present embodiment is transparent or translucent translucent laminated on the rear with respect to the translucent or translucent translucent resin substrate 146. Between the

resin films

147 and 149, it is embedded together with a transparent or translucent translucent electrode (not shown). Thereby, the attenuation of light from each pointer light source unit 143 can be suppressed and the emission intensity can be increased. Further, with respect to such light emission, each pointer light source unit 143 is turned off in response to the stop of energization to all three color LED light sources, thereby stopping light emission at its own built-in location in the rotation pointer 141. .

2 and 4, the rotation pointer 141 is provided with a pointer transmission portion 144 that covers each pointer light source unit 143 from the front. The pointer transmission part 144 is formed in an elongated block shape with a transparent or translucent translucent resin. The pointer transmitting portion 144 is disposed so as to be rotatable integrally with all the pointer light source portions 143 in front of the circular display portion 121a. On the front surface or the back surface of the pointer transmission portion 144, a plurality of minute irregularities (for example, a height difference of about 300 μm) are provided so as to be able to diffuse light. The pointer transmission unit 144 transmits and diffuses the light from each of the lit pointer light source units 143 through a plurality of projections and depressions, thereby making it possible to suppress light emission variations in the rotation pointer 141.

As shown in FIGS. 2, 4, and 5, the movable gear 142 is formed of a metal in an annular plate shape. The movable gear 142 is accommodated in the display case 110 in front of the display panel 120. The movable gear 142 exposes the circular display portion 121a on the inner peripheral side so that it can be viewed by a viewer in front. The movable gear 142 is disposed so as to be rotatable in the circumferential direction of the circular display portion 121a while maintaining the exposed state. As shown in FIGS. 4 and 5, the movable gear 142 forms an external gear portion 148 having a tip circle on the outer peripheral side of the root circle. At the same time, the movable gear 142 forms an annular groove-shaped guide rail 142a that opens forward on the front surface 142b facing forward. Furthermore, the movable gear 142 can rotate integrally with the pointer 141 by supporting the rotation pointer 141 in a part of the circumferential direction.

As shown in FIGS. 2 and 4, the movable gear 142 is provided with a plurality of metal conduction terminals 145 so as to be integrally rotatable via a rotation pointer 141. As shown in FIGS. 4, 6, and 7, each conduction terminal 145 protrudes in the form of an elongated plate behind the rotation pointer 141. Each conduction terminal 145 is electrically connected to the corresponding pointer light source unit 143 through the above-described translucent electrode in the rotary pointer 141.

Specifically, the first conduction terminal 145a is electrically connected to the minus terminal of the red LED light source in each pointer light source unit 143. The second conduction terminal 145b is electrically connected to the negative terminal of the green LED light source in each pointer light source unit 143. The third conduction terminal 145c is electrically connected to the minus terminal of the blue LED light source in each pointer light source unit 143. The fourth conduction terminal 145d is electrically connected to the plus terminals of all three color LED light sources in each pointer light source unit 143.

As shown in FIGS. 2, 4 and 5, the drive unit 150 includes a cover base 151, a decorative ring 152, an elastic member 153, a bearing 154, a fixed contact 155, and an actuator 156. As shown in FIGS. 2 and 4, the cover base 151 is formed in an annular plate shape from resin. The cover base 151 is accommodated in the display case 110 in front of the display panel 120 and behind the movable gear 142, that is, between the

elements

120 and 142. The base 151 is held by the display case 110. The cover base 151 exposes the circular display part 121a on the inner peripheral side so that it can be seen by a front viewer.

The decoration ring 152 is formed in the shape of an annular plate with an opaque resin. The decoration ring 152 is accommodated in the display case 110 from the front of the movable gear 142 to the outer peripheral side. The decoration ring 152 is attached to the cover base 151 and is held by the display case 110 via the base 151. The decoration ring 152 covers the movable gear 142 provided with the conduction terminal 145 and the cover base 151 from the front and outer peripheral sides so as to be substantially invisible to the front viewer. On the other hand, the decoration ring 152 exposes the circular display part 121a to the inner peripheral side so that it can be visually recognized from the front viewer. The decorative ring 152 has a substantially U-shaped section that protrudes forward and continues in the circumferential direction, so that the exposed circular display portion 121a is three-dimensionally decorated as shown in FIG.

As shown in FIG. 4, the plurality of elastic members 153 are each formed in a curved plate shape from resin. Each elastic member 153 is accommodated from the front of the movable gear 142 to the outer peripheral side in the display case 110. The elastic members 153 are arranged at equal intervals in the circumferential direction of the circular display portion 121a. Each elastic member 153 is covered with the decorative ring 152 from the front side and the outer peripheral side, so that it is substantially invisible to the front viewer. Each elastic member 153 is held by the display case 110 via the base 151 by being attached to the cover base 151. Under such a holding state, each elastic member 153 has a substantially cross-sectional U-shape that curves forward, so that it can be elastically deformed.

The plurality of bearings 154 are arranged along the outer peripheral edge of the circular display portion 121a, and are arranged at equal intervals in the circumferential direction of the display portion 121a. Each bearing 154 is accommodated in the display case 110 in front of the movable gear 142. Each bearing 154 is covered with the decorative ring 152 from the front side and the outer peripheral side, so that it is substantially invisible to the front viewer. Each metal bearing 154 is formed in a disk shape as a whole, and the inner ring is supported by the corresponding elastic member 153. At the same time, each bearing 154 has an outer ring inserted into the guide rail 142a. Under such a configuration, the restoring force of each elastic member 153 acts on the movable gear 142 and the rotation pointer 141 via each bearing 154, so that the gear 142 and the pointer 141 are pressed against the base 151, and the circular display portion 121a and The concentric state of can be maintained.

As shown in FIGS. 2 and 4, the plurality of fixed contacts 155 are formed in an annular plate shape from metal. Each fixed contact 155 is accommodated in a portion of the display case 110 that overlaps behind the corresponding conduction terminal 145. The fixed contacts 155 are arranged at equal intervals in the radial direction of the circular display portion 121a. Each fixed contact 155 is held by the display case 110 via the base 151 by being attached to the cover base 151. Accordingly, the positions of the fixed contacts 155 are fixed with respect to the display panel 120. Each fixed contact 155 can be electrically connected to the corresponding terminal 145 by being in sliding contact with the corresponding conductive terminal 145.

2 and 5, the actuator 156 has a drive source 157 and a pair of drive gears 158 and 159. The drive source 157 is a stepping motor in this embodiment, and has a drive shaft 157a. The drive source 157 is housed in the display case 110 on the outer peripheral side of the movable gear 142, in particular, on the lower side of the movable gear 142 in this embodiment, and is held by the case 110. Each

drive gear

158, 159 is formed in a spur gear shape from metal. The drive gears 158 and 159 respectively form

external gear portions

158a and 159a having tooth tip circles on the outer peripheral side of the root circle. The drive gears 158 and 159 are accommodated between the movable gear 142 and the drive source 157 in the display case 110.

Here, the first drive gear 158 is connected to the drive shaft 157a so as to be integrally rotatable. The second drive gear 159 is rotatably supported by the display case 110. The external gear portion 159 a of the second drive gear 159 is gear-connected to the external gear portion 158 a of the first drive gear 158 and the external gear portion 148 of the movable gear 142 by meshing. Under such a configuration, when rotational torque is applied to the drive shaft 157 a by the energized drive source 157, the drive gears 158 and 159 rotate to rotate the rotation pointer 141 integrally with the movable gear 142. It becomes.

The control unit 170 shown in FIG. 2 is mainly composed of a microcomputer. The control unit 170 is disposed inside or outside the display case 110. The control unit 170 is electrically connected to each fixed contact 155, the display panel 120, and the drive source 157 by electrical connection. Thereby, the control unit 170 controls the light emission state of the rotation pointer 141 by the light source unit 143 by executing the adjustment of energization to each pointer light source unit 143 conducted through the fixed contact 155 and the conduction terminal 145 as needed. . At the same time, the control unit 170 controls the display state of various color images such as the

images

122a and 123a on the panel 120 by outputting an energization command to the conductive display panel 120 as needed. Furthermore, the control unit 170 controls the rotational driving state of the rotation pointer 141 by the actuator 156 by outputting a power supply command to the conductive drive source 157 as needed. Here, on the circular display portion 121a side, vehicle speed information is input to the control unit 170 in order to control the rotation driving of the rotation pointer 141.

Hereinafter, display control on the circular display unit 121a side by the control unit 170 will be described in detail.

As shown in FIGS. 3 and 8, the control unit 170 variably controls the display color of the background image 123 a to be combined with the light emission color of the rotation pointer 141 on the circular display portion 121 a side according to the rotation position of the rotation pointer 141. .

Specifically, the control unit 170 changes the display color of the overlapped portion 123s to be superimposed behind the transparent or semi-transparent rotation pointer 141 in the background image 123a (see, for example, the diagonally upward hatched portion in FIG. 8). The display color of the normal portion 123n other than the overlapping portion 123s (for example, refer to the cross-hatched portion in FIG. 8) is different. Here, in particular, in the background image 123a of the present embodiment, the display color of the overlapping portion 123s is controlled to, for example, red, for example, with respect to the normal portion 123n whose display color is controlled to, for example, black. At the same time, in the background image 123 a, the place where the display color is controlled as the superimposed portion 123 s is changed according to the rotation position of the rotation pointer 141.

Further, at this time, the control unit 170 changes the light emission color of the rotation pointer 141 (for example, refer to the dot hatched portion in FIG. 3) to the display color of the overlapping portion 123s and the normal portion 123n. Here, in the rotation pointer 141 of the present embodiment, the light emission colors when the light sources 143 are turned on are all controlled to the same color, for example, blue. By the above control, the emission color of the rotation pointer 141 and the display color of the overlapping portion 123s are mixed at any rotation position of the rotation pointer 141, so that the viewer can visually recognize, for example, purple. .

Note that the display control on the circular display unit 121b side is executed in accordance with the display control on the circular display unit 121a side.

(Function and effect)
The effects of the first embodiment described above will be described below.

According to the first embodiment, the display state of the

index images

122 a and 122 b and the

background images

123 a and 123 b on the display panel 120, the light emission state of the rotation pointer 141 by the pointer light source unit 143, and the rotation driving of the rotation pointer 141 by the drive unit 150. The state is controlled by the control unit 170. At this time, in particular, the display colors of the

background images

123a and 123b combined with the light emission color of the rotation pointer 141 are variably controlled according to the rotation position of the rotation pointer 141. According to this, the combination state of the display color of the

background images

123a and 123b and the emission color of the rotation pointer 141 can be changed according to the rotation position of the rotation pointer 141. Therefore, the gazeability with respect to the rotation pointer 141 can be improved depending on not only the lighting state of the pointer light source unit 143 but also such a combined state.

Further, according to the first embodiment, the display color of the overlapping portion 123s that is superimposed behind the transparent or semi-transparent rotation pointer 141 in the

background images

123a and 123b is different from the display color other than the overlapping portion 123s. According to this, since the display color of the overlapping portion 123 s is in a color mixture state combined with the light emission color of the rotation pointer 141, the rotation pointer is caused by the color mixture state that cannot be displayed by only the display panel 120 or the pointer light source unit 143. 141 can improve the gaze improvement effect on 141.

Furthermore, in the rotation pointer 141 according to the first embodiment, the pointer transmission unit 144 diffuses the light by transmitting light from the pointer light source unit 143 through a plurality of front projections and depressions. According to this, the light emitting area of the rotation pointer 141 can be increased while the pointer light source unit 143 built in the rotation pointer 141 is accommodated in a small size. Therefore, the improvement effect of the gaze property with respect to the rotation pointer 141 can be enhanced together with the rotation driveability of the rotation pointer 141.

In addition, according to the driving unit 150 of the first embodiment, the fixed contact 155 that is fixed to the display panel 120 and is electrically connected to the control unit 170 is connected to the conductive terminal 145 provided on the movable gear 142 of the pointer unit 140. Conducted by sliding contact. Here, the conduction terminal 145 is provided for lighting the pointer light source unit 143. Therefore, the control unit 170 is able to reliably control the light emission of the rotation pointer 141 by conducting with the pointer light source unit 143 via the fixed contact 155 and the conduction terminal 145. Moreover, according to the drive unit 150, the actuator 156 that is electrically connected to the control unit 170 rotates the drive gears 158 and 159 linked to the movable gear 142 that supports the rotation pointer 141, so that the rotation pointer 141 is integrated with the movable gear 142. Driven by rotation. Therefore, the control unit 170 can also reliably control the rotation driving of the rotation pointer 141. According to the above, in the configuration in which the light emission state of the rotation pointer 141 and the rotation driving state of the rotation pointer 141 are realized by the control of the control unit 170, the general-purpose display panel 120 is relatively small in front of the display panel 120. It can be constructed at low cost.

(Second embodiment)
As shown in FIGS. 9 and 10, the second embodiment of the present disclosure is a modification of the first embodiment.

In the second embodiment, the control unit 170 changes the display color of the overlapping portion 123s that overlaps behind the rotation pointer 141 in the background image 2123a on the circular display portion 121a side (see, for example, the diagonally upward hatching portion in FIG. 9). On the other hand, the display color of the adjacent portion 2123c adjacent to the overlapped portion 123s (for example, refer to the diagonally hatched portion that rises to the left in FIG. 9) is made different. At this time, the control unit 170 changes the display color of the adjacent portion 2123c to the display color of the normal portion 123n that is the portion excluding the overlapped portion 123s and the adjacent portion 2123c in the background image 2123a (see, for example, the cross-hatched portion in FIG. 9). Also make it different.

Here, in particular, in the background image 2123a of the second embodiment, as shown in FIG. 9, for each pair of adjacent portions 2123c adjacent to both sides in the circumferential direction of the overlapping portion 123s, the respective display colors are the overlapping portion 123s and It is different from the normal portion 123n. At the same time, in the background image 2123a, the locations where the display colors are controlled as the adjacent portions 2123c and the overlapping portions 123s are changed according to the rotation position of the rotation pointer 141. Furthermore, in the background image 2123a, the display color of each adjacent portion 2123c is, for example, purple, with respect to the normal portion 123n in which the display color is controlled to, for example, black, and the superimposed portion 123s, in which the display color is controlled to, for example, red. Be controlled. As a result, as in the first embodiment, the emission color of the rotation pointer 141 (for example, see the dot hatched portion in FIG. 10) and the display color of the overlapping portion 123s are mixed and visually recognized as a mixed color such as purple. In this case, a display color that is similar to the mixed color and lighter than the mixed color is given to each adjacent portion 2123c.

As described above, according to the second embodiment, the adjacent portions 2123c adjacent in the circumferential direction to the overlapping portion 123s overlapping behind the transparent or translucent rotation pointer 141 in the background image 2123a The display color is made different from that of the normal portion 123n excluding the adjacent portion 2123c. As a result, the display color of each adjacent portion 2123c is combined with the light emission color of the rotary pointer 141 in a state where contrast is given to the display color of the normal portion 123n. Here, in particular, in the second embodiment having the same features as the first embodiment, the display color of each adjacent portion 2123c is the overlapping portion 123s in a state where contrast is given to the display color of the normal portion 123n. Are combined in a state adjacent to the emission color of the rotary pointer 141 mixed with the display color. Therefore, according to such a combination, it is possible to enhance the effect of improving the gaze on the rotation pointer 141.

(Third embodiment)
As shown in FIGS. 11 and 12, the third embodiment of the present disclosure is a modification of the first embodiment.

In the third embodiment, the control unit 170 displays the display color of the overlapping portion 3123s that overlaps behind the rotation pointer 141 in the background image 3123a on the circular display portion 121a side (for example, cross-hatching that is narrower than the normal portion 123n in FIG. 11). Is controlled to a dark color such as black, which is substantially the same as the normal portion 123n. In the background image 3123a of the third embodiment, the place where the display color is controlled as the overlapped portion 3123s is changed according to the rotational position of the rotation pointer 141.

The superposed portion 3123 s is illuminated by the light from each pointer light source unit 143 as a result of such control. At this time, the peripheral portion 3123m surrounding the overlapped portion 3123s in the normal portion 123n of the background image 3123a (see, for example, a dot hatching portion rougher than the light emitting portion of the rotation pointer 141 in FIG. 12) is supplied from each pointer light source unit 143. When the irradiation light leaks in the shape of a tree leaking day, the leaked light can be visually recognized by a viewer in front. According to this, the ambient display on the rotation pointer 141 can be realized by combining the illumination color of the peripheral portion 3123m adjacent to the emission color of the rotation pointer 141. Therefore, the effect of improving the gazeability with respect to the rotation pointer 141 can be enhanced.

(Other embodiments)
Although a plurality of embodiments of the present disclosure have been described above, the present disclosure is not construed as being limited to those embodiments, and various embodiments and combinations can be made without departing from the scope of the present disclosure. Can be applied.

Specifically, as a first modification regarding the first to third embodiments, the pointer transmission unit 144 may not have a light diffusing function. As a second modification related to the first to third embodiments, the rotation pointer 141 may be rotationally driven by various mechanisms other than the speed reduction mechanism in which the movable gear 142 and the actuator 156 are combined.

As a third modification related to the second embodiment, the adjacent portion 2123c may be displayed adjacent to only one side in the circumferential direction with respect to the overlapping portion 123s, that is, only on the rotation side of the rotation pointer 141 or the opposite side. As a fourth modification related to the second embodiment, the display color of the overlapping portion 123s is controlled to a dark color such as black, which is substantially the same as the normal portion 123n, according to the third embodiment. It may be illuminated by the light.

As a fifth modified example related to the first to third embodiments, the rotation pointer 141 transmits a part or all of the light to the back display panel 120 as long as the light from each pointer light source unit 143 is transmitted forward. May be provided with an opaque property capable of shielding the light. As a sixth modified example related to the second embodiment, the display color of the overlapped portion 123s that is not substantially illuminated by the light from each pointer light source unit 143 or weakly illuminated in response to the configuration change of the modified example 5 or the like is the third embodiment. Accordingly, it may be controlled to a dark color such as black, which is substantially the same as the normal portion 123n, and may not be substantially combined with the light emission color of the rotation pointer 141. However, in the case of the sixth modification, a combination of the display color of the adjacent portion 2123c and the emission color of the rotation pointer 141 is realized. As a modification example 7 related to the third embodiment, the display color of the overlapping portion 123 s that is not substantially illuminated by the light from each pointer light source unit 143 or is weakly illuminated due to the configuration change of the modification example 5 or the like is the light emission of the rotation indicator 141. It may not be substantially combined with the color.

The vehicle display device 100 mounted on the vehicle described above includes a display panel 120, a rotation pointer 141, a drive unit 150, and a control unit 170. The display panel 120 includes

index images

122a and 122b formed by arranging a plurality of

display indexes

124a, 124b, 125a, and 125b in the circumferential direction, and

background images

123a, 123b, 2123a, and 3123a that form the background of the index image. It is displayed so as to be visible from. The rotation pointer 141 is arranged to be rotatable in the circumferential direction in front of the display panel and to be able to indicate a display index, and emits light so as to be visible from the front when the built-in pointer light source unit 143 is turned on. The drive unit 150 rotationally drives the rotation pointer. The control unit 170 controls the display state of the index image and the background image on the display panel, the light emission state of the rotation pointer by the pointer light source unit, and the rotation driving state of the rotation pointer by the drive unit. The control unit 170 variably controls the display color of the background image combined with the emission color of the rotation pointer according to the rotation position of the rotation pointer.

According to such a configuration, the display state of the index image and the background image on the display panel, the light emission state of the rotation pointer by the pointer light source unit, and the rotation driving state of the rotation pointer by the drive unit are controlled by the control unit. At this time, in particular, the display color of the background image combined with the emission color of the rotation pointer is variably controlled according to the rotation position of the rotation pointer. According to this, the combination state of the display color of the background image and the emission color of the rotation pointer can change according to the rotation position of the rotation pointer. Therefore, the gazeability with respect to the rotation pointer can be improved depending on not only the lighting state of the pointer light source unit but also such a combination state.

Although the present disclosure has been described based on the embodiments, it is understood that the present disclosure is not limited to the embodiments and structures. The present disclosure includes various modifications and modifications within the equivalent range. In addition, various combinations and forms, as well as other combinations and forms including only one element, more or less, are within the scope and spirit of the present disclosure.

Claims

A vehicle display device (100) mounted on a vehicle,
An index image (122a, 122b) formed by arranging a plurality of display indexes (124a, 124b, 125a, 125b) in the circumferential direction and a background image (123a, 123b, 2123a, 3123a) that forms the background of the index image. A display panel (120) that is visible from the front,
A rotating pointer which is arranged in front of the display panel so as to be rotatable in the circumferential direction and capable of indicating the display index, and which emits light so as to be visible from the front by lighting of a built-in pointer light source unit (143). (141),
A drive unit (150) for rotationally driving the rotation pointer;
A control unit (170) for controlling a display state of the index image and the background image on the display panel, a light emission state of the rotation pointer by the pointer light source unit, and a rotation driving state of the rotation pointer by the drive unit. A vehicle display device comprising: a control unit that variably controls a display color of the background image combined with a light emission color of the rotation pointer according to a rotation position of the rotation pointer.
2. The control unit according to claim 1, wherein the display color of the overlapping portion (123 s) superimposed behind the rotation pointer that is transparent or translucent in the background image (123 a) is different from the display color other than the overlapping portion. The vehicle display device described.
The control unit displays the display color of the adjacent portion (2123c) adjacent in the circumferential direction with respect to the overlapping portion (123s) overlapping behind the rotation pointer in the background image (2123a). The vehicle display device according to claim 1, wherein the display color is different from a display color of a portion excluding the point.
The rotating pointer illuminates a superimposed portion (3123s) that overlaps behind the rotating pointer in the background image (3123a) with light from the pointer light source unit. Vehicle display device.
The vehicle display device according to any one of claims 1 to 4, wherein the rotation pointer includes a pointer transmission portion (144) that transmits light from the pointer light source portion through a plurality of projections and depressions in front.
A pointer unit (140) configured to include the rotation pointer;
The pointer unit is
A movable gear (142) that is rotatably arranged in the circumferential direction and is provided with a conduction terminal (145) for turning on the pointer light source unit and supports the rotation pointer;
The drive unit is
A fixed contact (155) fixed to the display panel and conducting with the control unit, and conducting with the conducting terminal by sliding contact;
An actuator (156) that is electrically connected to the control unit and that rotates the drive gear (158, 159) linked to the movable gear to rotate the rotation pointer integrally with the movable gear. Item 6. The vehicle display device according to any one of Items 1 to 5.