JP2018009902A - Display device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device for a vehicle, capable of securing notification property of information, by instruction of a display index by a rotary pointer.SOLUTION: A display device for a vehicle comprises: a display panel for arranging plural number indexes 124a and scale indexes 125b in a circumferential direction, and displaying them in a visible state from a front side; a rotary pointer 141 provided on a front side of the display panel, rotating in a circumferential direction and indicating the indexes 124b, 125b; and a drive unit for rotating and driving the rotary pointer 141. The display panel forms the number indexes 124b on a specific display area 126 which is assumed along a circumferential direction. The rotary pointer 141 has a transparent or translucent lens part 144a for enlarging and transmitting the number indexes 124b, on a front side of the specific display area 126.SELECTED DRAWING: Figure 8

Description

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

  In general, in a display device for a vehicle, 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 so as to be visible from the front according to the rotation position.

  As a type of such a display device for vehicles, the one disclosed in Patent Document 1 is such that the light from the light source unit is guided by turning on the external light source unit fixed in position outside the rotation pointer, and the rotation pointer is visually recognized from the front. It emits light as possible. According to this, it is possible to ensure gazeability with respect to the emitted rotation pointer.

Japanese Patent Laid-Open No. 2003-121212

  However, in the vehicle display device disclosed in Patent Document 1, when the rotation pointer rotates in front of the numerical index among the display indexes, the numerical index is behind the rotation pointer that emits light entirely when the external light source unit is lit. It becomes difficult to see from the front. For this reason, there is a possibility that the notification performance may be reduced with respect to information that should be notified to the viewer by the rotation pointer indicating the numerical index.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a display device for a vehicle that ensures notification of information when a rotation pointer indicates a display index. .

  The technical means of the invention for achieving the object will be described below. The reference numerals in parentheses described in the claims and in this section disclosing the technical means of the invention indicate the correspondence with the specific means described in the embodiment described in detail later. It is not intended to limit the technical scope of the invention.

The invention disclosed in order to solve the above problems
A vehicle display device (100) mounted on a vehicle,
A display panel (120) that displays a plurality of display indicators (124a, 124b, 125a, 125b) arranged in the circumferential direction so as to be visible from the front;
A rotation pointer (141, 2141) that is arranged in front of the display panel and indicates a display index while rotating in the circumferential direction;
A drive unit (150, 2150) for rotationally driving the rotation pointer,
The display panel
Forming specific indicators (124a, 124b) as display indicators in the specific display region (126) assumed along the circumferential direction;
The rotation pointer is
A transparent or translucent lens part (144a, 2144a) that magnifies and transmits the specific index is provided in front of the specific display area.

  According to such a disclosed invention, in front of the specific display area assumed on the display panel along the circumferential direction, the specific index formed in the area is enlarged and transmitted by the lens portion of the rotation pointer. As a result, the specific index is visible from the front in an enlarged state without being hidden behind the rotation pointer. Therefore, it is possible to ensure the information reporting property when the rotation pointer indicates the specific index.

It is a perspective view which shows the display apparatus for vehicles by 1st embodiment. It is sectional drawing which shows the display apparatus for vehicles by 1st embodiment, Comprising: It is the II-II sectional view taken on the line of 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 illustrating a part of the pointer unit and the drive unit in FIG. 2. It is a front view which shows the drive unit in FIG. 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 shows the operation state different from FIG. It is sectional drawing which shows the display apparatus for vehicles by 1st embodiment, Comprising: It is sectional drawing corresponding to FIG. It is a front view which expands and shows a part of display apparatus for vehicles by a second embodiment. It is a front view which shows the drive unit in FIG. It is a front view which shows the operation state different from FIG. It is sectional drawing which shows the modification of FIG.

  Hereinafter, a plurality of embodiments of the present invention 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 invention 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.

  As shown in FIGS. 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 a liquid crystal panel or an organic EL panel, for example, 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.

  As shown in FIGS. 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. Here, in each of the circular display portions 121a and 121b, the display colors (background colors 123a and 123b) are displayed in order to improve the gazeability of the display indicators such as the numerical indicators 124a and 124b and the rotation pointer 141 in the pointer unit 140. Here, graphics and patterns including combinations of a plurality of colors) may be variably controlled by the control unit 170.

  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, in the following, the pointer unit 140 and the drive unit 150 will be described on behalf of the circular display unit 121b side shown in FIGS. 2 and 3, and the circular display unit 121a side is different from the circular display unit 121b side. In particular, it will be explained. 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 121b 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 as a whole. 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 121 b while maintaining a state of extending along the radial direction of the circular display portion 121 b. The rotation pointer 141 can indicate the formation indexes 124b and 125b of the index image 122b corresponding to the rotation position of the rotation pointer 141 in order to display the engine rotation speed information of the vehicle.

  As shown in FIGS. 4 to 7, the rotation pointer 141 has a plurality of pointer light source units 143 built therein. The pointer light source parts 143 are provided apart from each other in the longitudinal direction of the rotary pointer 141 (that is, the radial direction of the circular display part 121b). 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 description.

  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, each pointer light source unit 143 is transparent or translucent (not shown) between the transparent or translucent translucent resin films 147 and 149 laminated on the rear side of the translucent or translucent translucent resin substrate 146. It is buried with a transparent electrode. 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. .

  As shown in FIG. 3, on the side of the circular display portion 121b, a predetermined number of pointer light source portions 143 are provided in front of each side portion sandwiching the specific display region 126 assumed in the display panel 120 in the radial direction (FIG. 3). In the example shown in FIG. Specifically, in the circular band-shaped specific display region 126 assumed along the circumferential direction of the circular display portion 121b (see, for example, the region partitioned by the two-dot chain line in FIG. 3), Among them, a numerical index 124b as a specific index is formed by the index image 122b, and a background image 123b is displayed. On the other hand, in the circular display portion 121b, an annular belt-shaped outer periphery display region 127 (see, for example, an area partitioned by a two-dot chain line in FIG. 3) assumed to be outside the specific display region 126 is displayed. A scale index 125b of the indices is formed by the index image 122b, and a background image 123b is displayed. In addition, the circular inner peripheral display region 128 (for example, a region partitioned by a two-dot chain line in FIG. 3) that is assumed along the circumferential direction and deviates to the inner peripheral side of the specific display region 126 in the circular display portion 121 b. Only the background image 123b is displayed. In this way, a predetermined number of pointer light source sections 143 are arranged in front of the areas 127 and 128 outside the specific display area 126 and are built in the rotation pointer 141. On the circular display portion 121a side, a predetermined number of pointer light source portions 143 are disposed in front of the regions 127 and 128 outside the specific display region 126 that forms the number indicator 124a, and are incorporated in the rotation pointer 141. Yes.

  As shown in FIGS. 2 to 5, the rotation pointer 141 is provided with a pointer cover portion 144 that covers each pointer light source portion 143 from the front. The pointer cover portion 144 is formed in a substantially rectangular plate shape as a whole, and is disposed so as to be integrally rotatable with all the pointer light source portions 143 in front of the circular display portion 121b. The pointer cover portion 144 includes a lens portion 144a, a frame portion 144b, and a transmission portion 144c.

  As shown in FIGS. 2, 3, and 5, the lens portion 144 a is formed into a Fresnel lens shape using a transparent or colored translucent resin (hereinafter simply referred to as “transparent or translucent”). The lens portion 144a is disposed in front of the specific display area 126 in the circular display portion 121b. As a result, the lens unit 144a enlarges and transmits the index 124b behind when it reaches the front of the numerical index 124b according to the rotation of the rotation pointer 141 as shown in FIG. On the circular display part 121a side, the numerical index 124a of the specific display area 126 is enlarged and transmitted by the lens part 144a.

  As shown in FIGS. 2 to 5, the frame portion 144 b is formed in a substantially rectangular frame shape when viewed from the front by a metal-like opaque resin. The frame part 144b is provided along the most part of the periphery of the lens part 144a, and is disposed across the front of each region 126, 127, 128 in the circular display part 121b. The frame portion 144b has a size on the inner side so that the number indicator 124b enlarged by the lens portion 144a can be viewed from the front viewer in a state where the numerical indicator 124b is surrounded by a gap 144d at least on both sides in the radial direction. Yes. In the frame portion 144b on the circular display portion 121a side, the inner size is secured so as to surround the numerical index 124a enlarged by the lens portion 144a with a gap 144d at least on both radial sides when viewed from the front. The

  As shown in FIGS. 2, 3, and 5, the transmission part 144c is integrally formed with the lens part 144a by a transparent or translucent translucent resin. The transmission part 144c extends from the lens part 144a to the outer peripheral display area 127 side and the inner peripheral display area 128 side along the radial direction of the circular display part 121b, and is disposed in front of the areas 127 and 128. . A plurality of minute irregularities (for example, an elevation difference of about 300 μm) are provided on the front surface or the back surface of the transmission portion 144c so as to be able to diffuse light. The transmission unit 144c transmits and diffuses the light from each of the lit pointer light source units 143 through a plurality of projections and depressions, thereby suppressing light emission variation in the rotation pointer 141.

  As shown in FIGS. 2, 4, and 5, the movable gear 142 is formed in an annular plate shape from an opaque metal. 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 121b 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 121b while maintaining the exposed state. As shown in FIGS. 4 and 5, the movable gear 142 forms an external gear portion 142 c 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 that can rotate together 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 negative 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 decoration ring 152, an elastic member 153 and 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 121b on the inner peripheral side so that it can be seen by a front viewer.

  The decorative ring 152 is formed in an annular plate shape from 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 121b to the inner peripheral side so that it can be visually recognized from a front viewer. The decorative ring 152 has a substantially U-shaped section that protrudes forward and continues in the circumferential direction, thereby three-dimensionally decorating the exposed circular display portion 121b as shown in FIG.

  As shown in FIG. 4, each of the plurality of elastic members 153 is 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 121b. 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 121b, and are arranged at equal intervals in the circumferential direction of the display portion 121b. 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 rotating 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 121b 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 121b. 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.

  As shown in FIGS. 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 142 c 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 122b and 123b on the panel 120 by outputting energization commands 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 121b side, the engine speed information is input to the control unit 170 in order to control the rotational drive of the rotation pointer 141.

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

  According to such a first embodiment, in front of the specific display area 126 assumed on the display panel 120 along the circumferential direction, the numerical indexes 124 a and 124 b formed in the area 126 are the lens portions 144 a of the rotation pointer 141. Is enlarged and transmitted. As a result, the numerical indicators 124a and 124b can be visually recognized from the front in an enlarged state without being hidden behind the rotation pointer 141. Therefore, it is possible to ensure information reporting by the rotation pointer 141 indicating the numerical indicators 124a and 124b.

  In addition, the frame portion 144b of the rotation pointer 141 according to the first embodiment is visible from the front in a state of enclosing the numerical indicators 124a and 124b enlarged by the lens portion 144a. According to this, the enlarged numerical indicators 124a and 124b in the frame portion 144b are easily watched by the viewer. Therefore, it is possible to improve the information reporting property when the rotation pointer 141 indicates the numerical indicators 124a and 124b.

  Furthermore, since the rotation pointer 141 according to the first embodiment emits light when the pointer light source unit 143 incorporated therein is turned on, attenuation of light from the pointer light source unit 143 in the lighting state until reaching the viewer in front is reduced. It can be made difficult to occur. Therefore, in front of the regions 127 and 128 outside the specific display region 126 of the display panel 120, the built-in pointer light source unit 143 can improve the gaze on the rotation pointer 141, and the front of the specific display region 126 is rotated. The gazeability with respect to the numerical indicators 124a and 124b enlarged by the lens portion 144a formed on the pointer 141 can be improved. From the above, it is possible to improve the information reporting property when the rotation pointer 141 with improved gazeability points to the numerical indicators 124a and 124b with improved gazeability.

  Furthermore, according to the drive unit 150 of the first embodiment, the fixed contact 155 that is fixed with respect to the display panel 120 and is electrically connected to the control unit 170 is connected to the conduction 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, in the actuator 156 of the drive unit 150, the drive gears 158 and 159 connected to the movable gear 142 that supports the rotation pointer 141 rotate, so that the pointer 141 is rotationally driven integrally with the movable gear 142. Therefore, the control unit 170 connected to the actuator 156 can also reliably control the rotational 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)
The second embodiment of the present invention is a modification of the first embodiment. In the second embodiment, as in the first embodiment, the circular display portion 121b side shown in FIGS. 9 to 12 will be described as a representative, and the circular display portion 121a side is not illustrated, but the circular display portion 121b side is illustrated. Different parts will be explained in particular.

  As shown in FIGS. 9 to 11, the pointer unit 2140 of the second embodiment includes a translucent rotating plate 2148 and a plurality of outer peripheral light source units 2143 together with a movable gear 2142 changed to translucency. Yes. Specifically, the movable gear 2142 is formed of a transparent or translucent translucent resin. The rotating plate 2148 is formed integrally with the movable gear 2142 using a transparent or translucent translucent resin. The rotating plate 2148 is accommodated in the display case 110 in front of the display panel 120. The rotating plate 2148 has a curved concave shape that is recessed at the front surface 2148a facing forward. The rotating plate 2148 is concentrically disposed so as to be integrally rotatable behind the movable gear 2142 having an annular plate shape along the outer peripheral edge of the rotating plate 2148. As a result, on the circular display portion 121b side, the entire display portion 121b is transmitted through the rotating plate 2148 so that it can be viewed by a front viewer.

  The transparent or semi-transparent rotating plate 2148 has a plurality of minute irregularities (for example, a height difference of about 5 μm) that are transparent or semi-transparent with a predetermined length so that light irradiated from the outer periphery side is reflected forward. It is formed in the shape area. As a result, the elongated region that will be visually recognized as the rotation pointer 2141 by the viewer in front of the light irradiation is maintained in a state of extending along the radial direction of the circular display portion 121b, while the circle of the display portion 121b is maintained. It can rotate in the circumferential direction. Here, in the second embodiment, the drive gears 158 and 159 of the actuator 156 of the drive unit 2150 rotate in the same manner as in the first embodiment, so that the elongated region formed on the rotation plate 2148 as the rotation pointer 2141 is It will be rotationally driven integrally with the movable gear 142.

  Of the elongated area as the rotation pointer 2141, the radial intermediate portion located in front of the specific display area 126 is not provided with minute irregularities, and the convex lens-shaped lens portion 2144 a is provided transparently or translucently. It has been. As a result, when the lens unit 2144a reaches the front position with respect to any numerical index 124b according to the rotation of the rotation pointer 2141 as shown in FIG. 12, the rear index 124b is enlarged and transmitted. Here, the lens portion 2144a secures an outer peripheral contour size that can be viewed from the front viewer in a state where the enlarged numerical index 124b is surrounded with a gap 2144d at least on both radial sides. On the circular display portion 121a side, the numerical indicator 124a of the specific display area 126 that is enlarged and transmitted by the lens portion 2144a is surrounded by a gap 2144d at least on both radial sides in a state of being visually recognized from the front. The outer periphery contour size is ensured.

  As shown in FIG. 10, the plurality of outer peripheral light source units 2143 are accommodated on the outer peripheral side of the rotating plate 2148 and the movable gear 2142 in the display case 110. Each outer light source unit 2143 is covered and held by the decorative ring 152 from the front and outer peripheral sides, so that it is substantially invisible to the front viewer. The respective outer light source parts 2143 are arranged at equal intervals in the circumferential direction of the circular display part 121b. Each outer light source unit 2143 is composed of LED light sources of three colors, which are red, green and blue in this embodiment. Each pointer light source unit 143 illuminates the rotating plate 2148 and the movable gear 2142 with light when at least one of the three color LED light sources is energized. As a result, the light from each pointer light source unit 143 is emitted to the elongated region of the rotating plate 2148 that has reached the corresponding rotational position, and the region emits light as the rotating pointer 2141 that is visible to the viewer in front. To do.

  In the second embodiment including such a pointer unit 2140, the plurality of fixed contacts 155 are not provided in the drive unit 2150 as shown in FIG. At the same time, in the second embodiment, the control unit 2170 connected to each outer light source unit 2143 controls the light emission state of the rotation pointer 2141 by the light source unit 2143. At this time, the control unit 2170 adjusts the energization of each outer peripheral light source unit 2143 so that at least one outer peripheral light source unit 2143 capable of irradiating light on the elongated region of the rotating plate 2148 is turned on according to the rotational position of the rotation pointer 2141. Is executed from time to time.

(Function and effect)
Of the operational effects of the second embodiment described above, differences from the operational effects of the first embodiment will be described below.

  According to the pointer unit 2140 of the second embodiment, the rotating plate 2148 that can be rotated in the circumferential direction in front of the display panel 120 is transparent or translucent, so that the rotating pointer 2141 having the lens portion 2144a is moved forward. It can be formed to be visible from. Here, in the actuator 156 of the drive unit 2150, the drive gears 158 and 159 linked to the movable gear 2142 rotate, so that the rotation pointer 2141 of the rotation plate 2148 is rotationally driven integrally with the movable gear 2142. Therefore, as in the first embodiment, the control unit 2170 that is electrically connected to the actuator 156 can reliably control the rotation driving of the rotation pointer 2141.

  Further, according to the pointer unit 2140 of the second embodiment, a plurality of outer light source portions 2143 are arranged side by side in the circumferential direction on the outer peripheral side with respect to the rotating plate 2148 and the annular movable gear 2142 along the outer peripheral edge thereof. Yes. Here, the movable gear 2142 is transparent or translucent like the rotating plate 2148. Therefore, the rotation pointer 2141 formed on the rotation plate 2148 can receive light from the at least one outer light source unit 2143 that is turned on according to its rotation position through the transparent or translucent elements 2142 and 2148. Therefore, the control unit 2170 connected to each of the outer peripheral light source units 2143 can control the light emission of the rotation pointer 2141 with certainty.

  According to the above, in the configuration in which the rotation driving state of the rotation pointer 2141 and the light emission state of the rotation pointer 2141 are realized by the control of the control unit 2170, the general-purpose display panel 120 is relatively small in front of the display panel 120. It can be constructed at low cost.

  Further, the rotating plate 2148 according to the second embodiment is transparent or translucent, so that even if the front viewer's image reflected by the front surface 2148a facing forward is reflected, the reflected image is reflected by the front surface 2148a recessed in a curved concave shape. Can be made difficult for the viewer to see. According to this, due to the rotating plate 2148 that is transparent or translucent to integrally form the lens portion 2144a for enlarging the numerical indicators 124a and 124b, the visual recognition of the numerical indicators 124a and 124b is made by the reflected image of the viewer. It is possible to avoid the situation that is obstructed. Therefore, it is possible to reliably ensure the information informing property by the rotation pointer 2141 indicating the numerical indicators 124a and 124b.

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

  As a first modification related to the first and second embodiments, scale indicators 125a and 125b are enlarged by the lens portions 144a and 2144a as specific indicators formed in the specific display area 126 instead of or in addition to the numerical indicators 124a and 124b. May be. As a second modification related to the first embodiment, the lens portion 144a may be formed in a convex lens shape in accordance with the second embodiment. As a third modified example related to the second embodiment, the lens portion 2144a may be formed in a Fresnel lens shape in accordance with the first embodiment.

  As a fourth modification related to the first embodiment, the frame portion 144b may not be provided on the rotation pointer 141 according to the second embodiment. As a fifth modified example related to the second embodiment, the frame portion 144b may be provided so as to be able to rotate integrally with the rotating plate 2148 according to the first embodiment.

  As a sixth modified example related to the first embodiment, the pointer light source unit 143 may not be disposed in front of one of the areas 127 and 128 outside the specific display area 126. As a seventh modified example related to the second embodiment, the light source unit 2143 may be provided so as to be integrally rotatable with the rotating plate 2148.

  As a modification 8 related to the second embodiment, a translucent resin-made rotating plate 2148 is separately formed and attached to a movable gear 2142 made of translucent resin or non-translucent metal. May be. As a ninth modified example related to the second embodiment, a rotation indicator 2141 is formed from a transparent or translucent translucent fluorescent layer that is laminated on the rotating plate 2148 and can emit light by ultraviolet light or infrared light from the outer peripheral light source unit 2143. It may be formed so as to be visible from the front. As a tenth modification related to the second embodiment, the rotation pointer 2141 may be formed so as to be visible from the front from a non-transparent colored print layer laminated on the rotation plate 2148.

  As a modification 11 related to the second embodiment, instead of or in addition to the curved concave front surface 2148a, a front surface 2148a provided with an anti-reflection function that suppresses reflection of a viewer image is employed in the rotating plate 2148. Also good. Here, the anti-reflection function can be realized by, for example, anti-reflection processing on the front surface 2148a, lamination of an anti-reflection layer on the front surface 2148a, and mounting of an anti-reflection sheet on the front surface 2148a. As a twelfth modified example related to the second embodiment, the front surface 2148a of the rotating plate 2148 may be formed in a planar shape other than a curved concave shape, for example.

  As a modification 13 related to the first and second embodiments, a display panel 120 in which the background color of the display index is not changed by printing or the like may be employed. As a fourteenth modification related to the second embodiment, as shown in FIG. 13, the rotation pointer 2141 may be rotationally driven by various mechanisms other than the speed reduction mechanism that combines the movable gear 142 and the actuator 156. Here, FIG. 13 shows a modification 14 in which an arm 1157 rotated and driven by a drive source 157 behind the display panel 120 supports the rotating plate 2148 so as to be integrally rotatable in front of the panel 120. . In the modification example 14, the arm 1157 can be made of a transparent or translucent translucent resin, an opaque metal, or the like.

DESCRIPTION OF SYMBOLS 100 Display apparatus for vehicles, 120 Display panel, 121a, 121b Circular display part, 124a, 124b Numerical index, 125a, 125b Scale index, 126 Specific display area, 127 Outer periphery display area, 128 Inner periphery display area, 140, 2140 Pointer unit 141, 2141 Rotating pointer, 142, 2142 Movable gear, 143 Pointer light source section, 144a, 2144a Lens section, 144b Frame section, 144c transmission section, 144d, 2144d clearance, 145 conduction terminal, 146 Translucent resin substrate, 147 transmission Optical resin film, 149 Translucent resin film, 150, 2150 drive unit, 155 fixed contact, 156 actuator, 157 drive source, 158 first drive gear, 159 second drive gear, 170, 2170 control unit, 1 57 arms, 2143 outer peripheral light source unit, 2148 rotating plate, 2148a front

Claims (7)

A vehicle display device (100) mounted on a vehicle,
A display panel (120) that displays a plurality of display indicators (124a, 124b, 125a, 125b) arranged in the circumferential direction so as to be visible from the front;
A rotation pointer (141, 2141) disposed in front of the display panel and indicating the display indicator while rotating in the circumferential direction;
A drive unit (150, 2150) for rotationally driving the rotation pointer,
The display panel is
Forming specific indicators (124a, 124b) as the display indicators in the specific display region (126) assumed along the circumferential direction;
The rotation pointer is
The display apparatus for vehicles which has the transparent or translucent lens part (144a, 2144a) which expands and transmits the said specific parameter | index in front of the said specific display area. The rotation pointer (141)
The vehicle display device according to claim 1, further comprising a frame portion (144 b) visible from the front in a state surrounding the specific index enlarged by the lens portion.   The rotation pointer emits light so as to be visible from the front by turning on a pointer light source unit (143) built in front of a position (127, 128) out of the specific display area of the display panel. The vehicle display device according to 1 or 2. A pointer unit (140) configured to include the rotation pointer (141);
A control unit (170) for controlling 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 (150);
The pointer unit is
A movable gear (142) that is rotatably arranged in the circumferential direction and is provided with a conduction terminal (145) to turn 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 4. The vehicle display device according to Item 3. A pointer unit (2140) configured to include the rotation pointer (2141);
A control unit (2170) for controlling the rotational driving state of the rotary pointer by the drive unit (2150),
The pointer unit is
A transparent or translucent rotating plate (disposed in front of the display panel) that is rotatable in the circumferential direction, and is formed so that the rotating pointer having the lens portion (2144a) is visible from the front. 2148),
A movable gear (2142) that is rotatably arranged integrally with the rotating plate,
The drive unit is
An actuator (156) that is electrically connected to the control unit and that rotates the drive pointer (158, 159) linked to the movable gear in an integrated manner with the movable gear by rotating the drive gear (158, 159); The vehicle display device according to claim 1, comprising: The movable gear is formed in a transparent or translucent annular shape along the outer peripheral edge of the rotating plate,
The pointer unit is
On the outer peripheral side of the rotating plate and the movable gear, they are arranged side by side in the circumferential direction and are connected to the control unit, and at least one lighting according to the rotation position of the rotating pointer causes the rotation pointer A plurality of peripheral light sources (2143) that emit light so as to be visible from the front,
The vehicle display device according to claim 5, wherein the control unit controls a light emission state of the rotation pointer by the plurality of outer peripheral light source units.   The vehicle display device according to claim 5 or 6, wherein the rotating plate has a curved concave shape that is recessed at a front surface (2148a) facing forward.

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