JP7136127B2 - vehicle display - Google Patents

Description

The present invention relates to a vehicle display device.

BACKGROUND ART A head-up display (HUD: Head-Up Display) device as disclosed in Patent Document 1 is known as a vehicle display device. The HUD device disclosed in Patent Literature 1 is a display device that allows a driver to visually recognize a virtual image by projecting display light from a liquid crystal display element onto a windshield along with light emission from a light source. In this HUD device, the liquid crystal display element is horizontally arranged in the lower part of the housing in order to secure the optical path length. The display light emitted from the liquid crystal display element is sequentially reflected by the plane boundary and the concave mirror and emitted toward the windshield.

JP 2016-9155 A

As shown in FIG. 1 of the HUD device disclosed in Patent Document 1, the housing of the HUD device has a protrusion that houses a liquid crystal display element and a light source that supplies illumination light to the liquid crystal display element. Prepare for department. That is, the HUD device disclosed in Patent Document 1 has a structure in which a portion of the lower surface of the housing protrudes. Therefore, the size of the HUD device is increased, making it difficult to mount it on a vehicle.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a compact vehicle display device.

In order to achieve the above object, a vehicle display device according to the present invention includes:
a display that emits display light;
a housing that accommodates the display;
a translucent part provided on the upper surface of the housing for transmitting the display light to the outside of the housing;
a reflecting mirror provided below the display for reflecting the display light emitted from the display to the translucent portion;
the indicator is provided on the side of the translucent part and at the same height as at least a part of the translucent part, and emits the display light downward toward the reflecting mirror;
The housing has an upper case and a lower case,
The display and the translucent part are arranged in the upper case,
The reflecting mirror is arranged on the lower case.

According to the present invention, it is possible to provide a small vehicle display device.

It is sectional drawing which cut|disconnected the display apparatus for vehicles which concerns on embodiment of this invention by xz plane in the position where a display device can be seen. 2 is an exploded perspective view of the vehicle display device shown in FIG. 1. FIG. 2 is a plan view of a lower case of the vehicle display device shown in FIG. 1. FIG. 2 is a bottom view of the upper case of the vehicle display device shown in FIG. 1. FIG. 2 is a cross-sectional view of the vehicular display device shown in FIG. 1 taken along the xz plane at a position where the periphery of the external light sensor can be seen; FIG. 2 is a plan view of the vehicle display device shown in FIG. 1 with the upper case and the light shielding member removed; FIG. 2 is a perspective view of the vehicle display device shown in FIG. 1 with an upper case removed; FIG. (a) is a rear perspective view of the vehicle display device shown in FIG. 1, and (b) is a front perspective view of the vehicle display device shown in FIG. 2 is a block diagram of a control unit of the vehicle display device shown in FIG. 1. FIG. (a) is an enlarged perspective view of the vicinity of the display element fixing portion of the blind portion with the upper case and the light blocking member removed, and (b) is an enlarged perspective view with the display element removed from (a). It is an enlarged perspective view near the plane mirror of a lower case. (a) is an enlarged perspective view of the vicinity of the concave mirror driving mechanism of the blind portion, and (b) is an enlarged perspective view of the blind portion removed from (a). (a) and (b) are enlarged perspective views of the vicinity of the concave mirror of the lower case. It is an enlarged cross-sectional view of the vicinity of the concave mirror holding portion of the lower case. 4 is an enlarged cross-sectional view of a portion where the blind portion is sandwiched between the upper case and the lower case; FIG. 4 is an enlarged perspective view of a blind portion, a display element, and a circuit board; FIG. It is an expansion perspective view near a light guide. It is a side view which shows the positional relationship of the attachment position of a display element, and a joint surface. (a) is a perspective view of the upper case where the connector cover can be seen, (b) is a perspective view of the dust-proof wall with the upper case removed from the vehicle display device, and (c) is an enlarged view of the dust-proof wall. It is a sectional view. (a) is a perspective view of the upper case at a position where the connector lid portion according to the modification can be seen; (b) is a perspective view of the dust-proof wall according to the modification with the upper case removed from the vehicle display device; c) is an enlarged cross-sectional view of a dust-proof wall according to a modification;

A vehicle display device according to an embodiment of the present invention will be described below with reference to the drawings. In the following description, for ease of understanding, xyz orthogonal coordinates are set in which the longitudinal direction of the vehicle is the x-axis direction, the left-right direction viewed from the vehicle occupant is the y-axis direction, and the height direction is the z-axis direction. and refer to it as appropriate. "Front" is the forward direction of the vehicle, which is the +x-axis direction.

A vehicle display device 100 according to the present embodiment is mounted in a dashboard of a vehicle 300 and emits display light L toward a windshield 210, which is a projected member of the vehicle 300, as shown in FIG. A viewer U who is a driver receives the display light L reflected by the windshield 210 and visually recognizes the virtual image V seen through the windshield 210 . In addition, the vehicle display device 100 has one or a plurality of gauges at its rear end to report measured values and the like.

As shown in FIGS. 1 and 5, the vehicle display device 100 includes a housing 110, a display 120, a plane mirror 130, a concave mirror 140, a circuit board 150, an instrument display section 160, and an external light sensor. 170, a light guide passage 180, a light blocking member 190, and a concave mirror driving mechanism. The vehicle display device 100 emits the display light L from the display 120 to the plane mirror 130 , reflects the display light L on the plane mirror 130 , and then reflects the display light L on the concave mirror 140 . The display light L reflected by the concave mirror 140 passes through a translucent portion 115 a of an upper case 111 (described later) of the housing 110 and is reflected by the windshield 210 . The display 120, the plane mirror 130, the concave mirror 140, and the head-up display (HUD) control section 12 constitute a head-up display section.

The housing 110 is made of, for example, black synthetic resin. As shown in FIG. 2, the housing 110 includes a lower case 112 formed in a box-like shape that opens upward, an upper case 111 mounted on the upper portion of the lower case 112 so as to close the lower case 112 from above, Prepare. Further, the housing 110 has a fitting portion 113 to which the meter display portion 160 is fitted on the rear side. The fitting portion 113 has a tubular shape surrounding the meter display portion 160 .

As shown in FIG. 1 , an opening 114 a is provided on the upper front surface of the upper case 111 to allow the display light L reflected by the concave mirror 140 to pass outside (outside) the housing 110 . A light-transmitting portion 115a for dust prevention is arranged on the front upper surface of the upper case 111 so as to transmit the display light L to the outside of the housing 110 so as to cover the opening portion 114a. The translucent portion 115a is, for example, laser-welded to the opening 114a.

The upper case 111 has a fitting upper portion 113 a that forms part of the fitting portion 113 . As shown in FIG. 2, the fitting upper portion 113a is substantially U-shaped so as to cover the upper surface and both side surfaces of the meter display portion 160. As shown in FIG. The upper case 111 also has a display device insertion hole 114b through which a display device 120, which will be described later, is inserted. The indicator insertion hole 114b has a rectangular shape elongated in the left-right direction, and is positioned between the fitting upper portion 113a and the opening 114a as shown in FIG. In addition, the indicator insertion hole 114b is positioned so as to face the plane mirror 130 in the vertical direction.

Upper case 111 has light shielding wall 115 at opening 114a. The light shielding wall 115 slopes downward from the rear edge of the opening 114a toward the front. The light shielding wall 115 prevents a phenomenon (washout) in which sunlight enters the display 120 through the opening 114a and the virtual image V becomes difficult to see. As shown in FIG. 5, the light shielding wall 115 has a light guiding hole 114c penetrating the light shielding wall 115 in its thickness direction. The light guide hole 114 c is a hole for introducing external light between the light shielding wall 115 and the circuit board 150 inside the housing 110 .

As shown in FIG. 19(a), the upper case 111 has a connector lid portion 116c on the rear left side. The connector lid portion 116c is provided along three side surfaces and an upper surface of the connector portion 151, which will be described later.

As shown in FIGS. 1 and 6, the lower case 112 accommodates a plane mirror 130, a concave mirror 140, and the like. As shown in FIG. 6, the lower case 112 has a lower bottom surface 112a located below the lower case 112, an upper bottom surface 117 located above the lower bottom surface 112a, and a space between the lower bottom surface 112a and the upper bottom surface 117. Partition walls 118a and 118b are connected.

As shown in FIGS. 3 and 6, the upper bottom surface 117 of the lower case 112 includes a lower fitting portion 113b forming a fitting portion 113 together with an upper fitting portion 113a, and a connector holding portion 116a for holding a connector portion 151, which will be described later. , and an upright portion 116 for fixing the circuit board 150 in an upright state. The fitting lower portion 113b is located on the rear end side of the upper bottom surface 117 and supports the meter display portion 160 located inside the fitting portion 113 from below. The rising portion 116 is located forward of the fitting lower portion 113b, extends perpendicularly to the upper bottom surface 117, and has a rectangular plate shape elongated in the left-right direction (Y direction). Further, the connector holding portion 116a provided along the connector portion 151, which will be described later, has a rectangular cylindrical shape in which the side wall on the rear side (circuit board 150 side) is omitted. A cable hole 116b communicating with the outside is formed in the upper bottom surface 117 in the connector holding portion 116a.

The lower case 112 also includes a pair of bearings 119a and 119b positioned in front of the bottom surface 112a to rotatably support the concave mirror 140, and a plane mirror fixing portion 112c positioned behind the bottom surface 112a to fix the plane mirror 130. And prepare. The pair of bearings 119a and 119b has a concave shape that rotatably accommodates the pair of shafts 141a and 141b of the concave mirror 140, and is positioned apart from each other so as to sandwich the concave mirror 140 in its longitudinal direction.

The plane mirror fixing portion 112c has a higher bottom toward the rear. The flat mirror fixing portion 112c has claws 112d, 112e, 112f, and 112g for fixing the lower end portion and side surfaces of the flat mirror 130. As shown in FIG.

As shown in FIG. 3, locking holes 112h, 112i, 112j, 112k, and 112l are formed in the outer peripheral surface of the lower case 112. As shown in FIG. Hooks 111a, 111b, 111c, 111d and 111e of the upper case 111 shown in FIG. Thereby, the lower case 112 is fixed to the upper case 111 .

Locking holes 112m and 112n for fixing the meter display portion 160 are formed in the lower case 112 at both ends in the horizontal direction of the fitting lower portion 113b.

As shown in FIG. 1, the display 120 includes a backlight 121 that emits light, a liquid crystal panel that receives light from the backlight 121 and generates display light L that represents an image, a DMD (Digital Micro Mirror Device), or the like. and a display element 123 of. The backlight 121 is mainly composed of a light source 124 and a lens member 125, for example. The display 120 is provided on the side of the translucent portion 115a and between the instrument display portion 160 and the translucent portion 115a, which will be described later. In addition, the display element 123 positioned below the display 120 is positioned so as to have the same height as the translucent portion 115a in the vertical direction. The display 120 emits display light L indicating a display image downward toward a plane mirror 130 at the lower right rear of the lower case 112 . The upper portion of the display 120 is inserted through the display insertion hole 114b on the upper left rear side of the upper case 111. As shown in FIG. At this time, the display 120 is positioned behind the translucent portion 115a and is positioned at the same height as the translucent portion 115a in the vertical direction.

The display 120 includes a radiator 122 that dissipates heat from the display 120 . The heat radiation part 122 is made of metal, for example, and has a rectangular plate shape. The heat radiation part 122 is positioned on the upper surface of the display 120 and is exposed to the outside of the vehicle display device 100 through the display insertion hole 114 b of the upper case 111 . The indicator 120 is supported at its lower portion by a light shielding member 190 which will be described later.

The display element flexible board 126 is made of a flexible substrate. As shown in FIG. 16, the display element flexible board 126 is erected near the display element flexible board 126 and the circuit board 150 to connect the display element 123 and the circuit board 150 . The display element flexible board 126 facilitates connection between the display element 123 and the circuit board 150 .

The display case 127 accommodates (houses) the light source 124, the lens member 125, and the like, as shown in FIG. The display element 123 generates display light L upon receiving light from the light source 124 .

The plane mirror 130, as shown in FIG. 6, is a substantially trapezoidal plate-like body arranged in the plane mirror fixing portion 112c on the lower right rear of the lower case. As shown in FIG. 1, the plane mirror 130 reflects the display light L incident from the display 120 on the upper right behind the upper case 111 to the concave mirror 140 in front of the lower case 112 . The plane mirror 130 is formed by forming a metal reflective film on one surface of a plate-like substrate made of synthetic resin, glass, or the like. The plane mirror 130 corresponds to a reflecting mirror.

The plane mirror 130 is supported by a plane mirror holder 131 fixed to the plane mirror fixing portion 112c of the lower case 112, as shown in FIGS.

The concave mirror 140, as shown in FIG. 6, has a substantially rectangular plate-like mirror surface curved along its longitudinal direction. The concave mirror 140 reflects the display light L from the plane mirror 130 toward the windshield 210, as shown in FIG. The concave mirror 140 is formed by forming a metallic reflective film on one surface of a substrate made of synthetic resin, glass, or the like. The plane mirror 130 and the concave mirror 140 constitute an optical system 220 that guides the display light L from the display 120 to the windshield 210 (translucent portion 115a) that constitutes the projected member. Note that not only the plane mirror 130 but also the concave mirror 140 may correspond to the reflecting mirror.

As shown in FIG. 6, the concave mirror 140 includes a body portion 140a having the mirror surface, and shafts 141a and 141b located at both ends of the body portion 140a. The tip of the shaft 141a is rotatably fitted in the bearing 119a shown in FIG. 3, and the tip of the shaft 141b is rotatably fitted in the bearing 119b.

The concave mirror drive mechanism 200 includes a motor 144 fixed to the lower bottom surface 112a on the front left side of the lower case 112, and a converter 145 that rotates the concave mirror 140 around its shafts 141a and 141b by being driven by the motor 144. Prepare.

The concave mirror driving mechanism 200 is provided with a conversion part fixture 146, as shown in FIG. 12(b). The conversion part fixture 146 attaches the conversion part 145 to the lower case 112 .

Circuit board 150 is, for example, a printed circuit board. 9, the external light sensor 170 shown in FIG. 5, and the instrument light source 161 shown in FIG. 8A are mounted on the circuit board 150. As shown in FIG.

The control unit 10 includes a CPU (Central Processing Unit), memory, etc., and executes a control program stored in the memory. As shown in FIG. 9, the control unit 10 functionally includes a motor control unit 11 that controls the motor 144, a HUD control unit 12 that controls the display 120, and an instrument display unit 160 (instrument light source 161, liquid crystal and a meter control unit 13 that controls the display panel 162).

The motor control unit 11 controls the tilt angle of the concave mirror 140 by driving the motor 144 shown in FIG.

The meter control unit 13 controls the meter light source 161 and the liquid crystal display panel 162 shown in FIG. 5 of the meter display unit 160 which will be described later. Specifically, the instrument control unit 13 generates information to be displayed on the instrument display unit 160 based on signals and information received from sensors and vehicle information received from an ECU (Electronic Control Unit) or the like. The vehicle information includes vehicle speed, travel distance, gear position, battery voltage, remaining amount of fuel, water pressure, water temperature, oil pressure, oil temperature, and warning information. The warning information includes, for example, speed warning, water temperature/oil temperature warning, water pressure/oil pressure warning, remaining fuel warning, and the like.

The instrument controller 13 sets on/off and output of the instrument light source 161 based on the detection result of the external light sensor 170 . For example, the instrument controller 13 sets the output of the instrument light source 161 higher as the light intensity of the outside light increases, and turns off the instrument light source 161 when the intensity is equal to or higher than the reference value.

A head-up display (HUD) controller 12 controls a backlight 121 and a display element 123 of the display 120 . For example, the HUD control unit 12 controls the indicator 120 so as to adjust the luminance of the display light L according to illuminance data in front of the vehicle 300 acquired from the external light sensor 170, which will be described later. More specifically, the HUD control unit 12 changes the display level of the display image (virtual image) V as the illuminance indicated by the illuminance data from the external light sensor 170 increases, that is, as the illuminance in front of the vehicle 300 increases. A process for adjusting the emission luminance (light intensity) of the display light L from the display 120 is executed so that the tone becomes higher.

As shown in FIG. 1, the circuit board 150 is provided vertically between the display 120 and a meter display section 160, which will be described later. The circuit board 150 is located on the front side of the meter display section 160 , in other words, on the back side of the display surface of the meter display section 160 .

As shown in FIG. 6, the circuit board 150 has a connector section 151 on its front surface. The connector portion 151 is held within the connector holding portion 116a. A cable as a predetermined wiring member (not shown) is connected to the connector portion 151 through the cable hole 116b shown in FIG.

The external light sensor 170 is composed of, for example, a photodiode that detects the intensity of light. The external light sensor 170 is mounted on the first surface 152 of the circuit board 150 facing the translucent portion 115a, as shown in FIG. The external light sensor 170 is located inside a light guide passage 180, which will be described later, at a position facing the light guide hole 114c of the light shielding wall 115 in the front-rear direction. The external light sensor 170 outputs the detected external light intensity to the HUD control unit 12 .

The light shielding member 190 is made of, for example, black synthetic resin. As shown in FIGS. 1 and 7, the light shielding member 190 includes a substantially rectangular plate-shaped blind portion 191 facing the lower bottom surface 112a, concave mirror holding portions 193 and 193 that hold down the shafts 141a and 141b of the concave mirror 140 from above, Prepare. The blind portion 191 suppresses the display light L from being mixed with external light. That is, the blind portion 191 partitions the space in which the circuit board 150 is located and the space through which the light emitted from the display 120 passes.

As shown in FIG. 2, the blind portion 191 includes a rectangular light-transmitting window 194 through which the display light L from the display 120 passes, and a plurality of display supports supporting the display 120 around the light-transmitting window 194. A portion 192 and are formed. The indicator support portion 192 is formed in a columnar shape extending upward.

A plurality of display element fixing portions 195 for fixing the display element 123 around the translucent window 194 are formed above the blind portion 191 as shown in FIGS. The display element fixing portion 195 is formed in a rectangular parallelepiped shape. The display element 123 is fixed around the translucent window 194 by a double-sided tape 196 attached around the translucent window 194 while being held by a plurality of display element fixing portions 195 . At this time, the display element 123 is arranged above the joint surface B between the upper case 111 and the lower case 112, as shown in FIG.

As shown in FIG. 10(b), the blind portion 191 is formed with a plurality of flat mirror holder fixing portions 198 that are approximately L-shaped when viewed from the side. As shown in FIG. 11, the tip of the L-shaped portion of the flat mirror holder fixing portion 198 contacts the flat mirror holder 131 to hold down the flat mirror holder 131 from above toward the bottom surface of the lower case 112 . The plane mirror holder fixing portion 198 prevents the plane mirror holder 131 from slipping or falling off from the plane mirror fixing portion 112c.

As shown in FIG. 12(a), the blind portion 191 is formed with a plurality of concave mirror drive mechanism fixing portions 199 that are approximately L-shaped when viewed from the side. The concave mirror driving mechanism fixing portion 199 presses the converting portion mounting member 146 from above toward the bottom surface of the lower case 112 by contacting the tip of the L-shaped portion thereof with the converting portion mounting member 146 of the concave mirror driving mechanism 200. . The concave mirror driving mechanism fixing portion 199 prevents the concave mirror driving mechanism 200 from slipping or falling off from the lower case 112 .

As shown in FIG. 15, the blind portion 191 is sandwiched between the upper case 111 and the lower case 112 (the upper bottom surface 117 thereof). Therefore, the blind portion 191 is firmly fixed inside the housing 110 formed by fitting the upper case 111 and the lower case 112 together.

As shown in FIG. 7, the concave mirror holding portions 193, 193 are positioned on the left and right sides of the blind portion 191, and hold down the shafts 141a, 141b of the concave mirror 140 from above so that the shafts 141a, 141b do not drop out of the bearings 119a, 119b.

As shown in FIGS. 13(a), 13(b) and 14, a pair of concave mirror holders 201 which are generally L-shaped in side view are formed on the concave mirror holding portions 193, 193 of the blind portion 191. As shown in FIGS. A pair of concave mirror holders 201 urge the shafts 141a and 141b of the concave mirror 140 from above to prevent them from slipping or falling off the bearings 119a and 119b. The biasing force of the concave mirror retainer 201 is set to such an extent that the rotation of the shafts 141a and 141b is not hindered.

As shown in FIGS. 5 and 8( a ), the instrument light source 161 is composed of a plurality of LEDs and mounted on the second surface 153 of the circuit board 150 facing the instrument display section 160 .

The instrument display unit 160 includes, in addition to the instrument light source 161 described above, a liquid crystal display panel (LCD: Liquid Crystal Display) 162 in which a plurality of pixels are formed in a matrix, and an instrument housing 163 . The liquid crystal display panel 162 forms a display image (image) based on the drawing data generated by the drawing circuit which is a part of the meter control section 13 described above.

The instrument housing 163 is made of light-shielding resin, and has a tubular shape surrounding the outer circumference of the instrument display section 160 as shown in FIGS. 5 and 8B. The instrument housing 163 is positioned on the peripheral edge of the second surface 153 of the circuit board 150 . As shown in FIG. 2 , the fitting portion 113 is positioned on the outer peripheral surface of the instrument housing 163 . As shown in FIG. 8(b), the instrument housing 163 includes a pair of board-holding locking claws 164a and 164b that sandwich the circuit board 150 from its longitudinal direction, and the lower case 112 shown in FIG. A pair of locking claws 165a and 165b for fixing the lower case are fitted into the stop holes 112m and 112n. The lower case fixing locking claws 165a and 165b are positioned at both ends in the left-right direction on the lower surface of the instrument housing 163 and extend downward.

As shown in FIG. 5, the light guide passage 180 as a light guide member is formed in a substantially cylindrical shape from, for example, black synthetic resin. The light guide passage 180 extends in the front-rear direction between the external light sensor 170 and the light guide hole 114 c of the light shielding wall 115 . The light guide passage 180 has a diameter that increases toward the rear, and the rear end of the light guide passage 180 is fixed to the first surface 152 . The front end of the light guide passage 180 faces the light guide hole 114 c of the light shielding wall 115 of the upper case 111 .
Light guide passage 180 guides external light from the front of vehicle 300 incident through light transmitting portion 115 a toward external light sensor 170 .

According to this vehicle display device 100, the display 120 is provided on the side of the translucent portion 115a provided on the upper surface of the housing 110 and at the same height as at least a part of the translucent portion 115a. ing. Therefore, the display device 120 does not protrude from the lower side of the housing 110 unlike the conventional vehicle display device, so that the vehicle display device 100 can be miniaturized.
Further, by sharing the circuit board 150 between the display device 120 and the meter display unit 160, the number of parts can be reduced, and the vehicle display device 100 can be made smaller. Therefore, costs can be reduced.
In addition, since the external light sensor 170 is mounted on the circuit board 150, a separate external light sensor board for mounting the external light sensor is not required, and the number of parts of the vehicle display device 100 can be reduced. As a result, size reduction of the display apparatus 100 for vehicles can be achieved.

In addition, since the vehicle display device 100 is provided with the indicator 120 between the gauge display portion 160 and the translucent portion 115a, the dead space behind the gauge display portion 160 can be effectively utilized. , the vehicle display device 100 can be miniaturized. Therefore, the mountability of the vehicle display device 100 on the vehicle is improved.

Since the vehicle display device 100 emits the display light L downward toward the plane mirror 130 from the display device 120 arranged in the upper part of the housing 110, the display device 120 can be arranged above the vehicle display device 100. can. Therefore, the optical path length of the display light L can be sufficiently ensured without increasing the size of the vehicle display device 100 .

In the vehicle display device 100, the display device 120 and the translucent portion 115a are arranged in the upper case 111, and the plane mirror 130 and the concave mirror 140 are arranged in the lower case 112. A sufficient optical path length for the light L can be ensured.

Further, the vehicle display device 100 has the display device support portion 192 that supports the display device 120 (display device case 127) and the display device fixing portion 195 that fixes the display device 123 in the blind portion 191. 120 and display element 123 can be placed at appropriate positions. Therefore, it is possible to prevent the display image V from being shadowed or the edge of the display element 123 from being reflected in the display image V. FIG. In a conventional vehicle display device, a connection member is interposed between the blind portion and the display device and the display element. The vehicle display device 100 in which the display device 120 and the display element 123 are directly fixed can arrange the display device 120 and the display element 123 with less error.

In the vehicle display device 100 , the display device support portion 192 and the display element fixing portion 195 are arranged above the joint surface B between the upper case 111 and the lower case 112 . That is, the display element 123 and the display 120 are arranged above the joint surface B between the upper case 111 and the lower case 112 . Therefore, while viewing the display element 123 and the display 120 arranged thereon, the display element 123 and the display are attached to the display element fixing portion 195 and the display support portion 192 on the blind portion 191 arranged in the lower case 112 . Since the work to attach 120 can be performed, assembly is facilitated.

Moreover, as shown in FIG. 19(c), the vehicle display device 100 is configured such that the connector holding portion 116a and the connector lid portion 116c are adhered to each other so that the connector holding portion 116a and the connector lid portion 116c are separated in the thickness direction thereof. A dust-proof wall 116d is formed to overlap the . Therefore, the inside of the housing 110 and the cable hole 116b can be partitioned by the dustproof wall 116d and the connector portion 151. FIG. Therefore, it is possible to reduce the entry of dust or the like into the housing 110 through the cable hole 116b. Further, as shown in FIG. 19(b), the rising portion 116 is provided continuously with the connector holding portion 116a, thereby further enhancing the dustproof effect. 20(a), 20(b), and 20(c) are used instead of providing the rising portion 116, the fitting lower portion 113c is lower than the upper bottom surface 117. By doing so, the dustproof effect can be enhanced. The dustproof effect may be enhanced by providing the raised portion 116 and making the fitting lower portion 113c lower than the upper bottom surface 117 .

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various applications and modifications are possible.

Although the light guide passage 180 is used in this embodiment, a light guide may be used instead of the light guide passage 180 . The light guide may be made of translucent resin such as PMMA (PolyMethylMethAcrylate).

Further, in the present embodiment, the meter display unit 160 is a liquid crystal display device, but the meter display unit 160 is a pointer-type meter display having a pointer and a display plate having a display of measured values such as a scale indicated by the pointer. It may be one using a part.

In this embodiment, the gauge display unit 160 is integrated with the vehicle display device, but the gauge display unit 160 may not be integrated with the vehicle display device. Moreover, the vehicle display device may omit the meter display section.

Moreover, although the light guide path 180 is provided in this embodiment, the light guide path 180 may not be provided. In this case, the external light sensor 170 is provided at a position facing the light guide hole 114c of the light shielding wall 115 .

Although the HUD controller 12 is provided on the circuit board 150 in this embodiment, the HUD controller 12 may not be on the circuit board 150 . In this case, for example, the HUD controller 12 may be provided on another board.

In the above-described embodiment, the circuit board 150 is erected between the display 120 and the meter display section 160, but the position and orientation of the circuit board 150 are not limited to this. For example, the circuit board 150 may be placed on the light blocking member 190 .

In the present embodiment, the projected member is the windshield, but the projected member may be a combiner or the like.

Further, in the present embodiment, the vehicle display device is mounted on a vehicle, but it is not limited to being mounted on a vehicle, and may be mounted on any moving object such as an airplane or a ship.

In this embodiment, the HUD control unit 12 of the circuit board 150 adjusts the luminance of the display light L according to the illuminance data from the external light sensor 170. A configuration may be adopted in which the emission brightness of the display light L can be adjusted according to data, and the viewer U can adjust the emission brightness of the display light L by himself/herself.

Further, in the present embodiment, the light source 124 of the backlight 121 of the display 120 is arranged above the display 120, but as shown in FIG. A light source 124a may be mounted on the surface. At this time, the light from the light source 124a to the display 120 may be guided through the display light guide 202 instead of the lens portion 125 . This eliminates the need to separately provide a substrate for the light source in the display device 120 and eliminates the need for a connection for power supply to the display device 120 .

REFERENCE SIGNS LIST 10 control unit 11 motor control unit 12 head-up display (HUD) control unit 13 instrument control unit 100 vehicle display device 110 housing 111 upper case 112 lower case 113 fitting portion 115 light shielding wall 115a translucent portion 116d dustproof wall 120 display Instrument 123 Display element 127 Display case 130 Plane mirror 140 Concave mirror 150 Circuit board 152 First surface 153 Second surface 160 Instrument display unit 161 Instrument light source 170 External light sensor 180 Light guide passage (light guide member)
191 Blind Part 200 Concave Mirror Driving Mechanism 202 Light Guide for Indicator 210 Windshield (Projected Member)
220 optical system 300 vehicle B joint surface L display light U viewer

Claims (6)

a display that emits display light;
a housing that accommodates the display;
a translucent part provided on the upper surface of the housing for transmitting the display light to the outside of the housing;
a reflecting mirror provided below the display for reflecting the display light emitted from the display to the translucent portion;
the indicator is provided on the side of the translucent part and at the same height as at least a part of the translucent part, and emits the display light downward toward the reflecting mirror;
The housing has an upper case and a lower case,
The display and the translucent part are arranged in the upper case,
the reflector is disposed in the lower case;
A vehicle display device characterized by: further equipped with an instrument display that displays vehicle information,
The display is provided between the meter display unit and the translucent unit,
The vehicle display device according to claim 1, characterized in that: further comprising a blind portion that separates a space in which the display is located and a space through which the display light emitted from the display passes, in the interior of the housing;
The display has a display element that receives light from a light source and generates the display light, and a display case that houses the light source,
The blind part has a display support part that supports the display case and a display element fixing part that fixes the display element,
The vehicle display device according to claim 1 , characterized in that: further comprising a circuit board for controlling the indicator and the instrument display,
The circuit board is provided between the display and the meter display,
The light source is mounted on the surface of the circuit board on the side where the display is located,
The display has a display light guide that guides the light from the light source to the display.
3. The vehicle display device according to claim 2 , wherein: The display support portion and the display element fixing portion are arranged above a joint surface between the upper case and the lower case,
The vehicle display device according to claim 3 , characterized in that: The circuit board has a connector portion connectable to a predetermined wiring member,
The connector portion is arranged from the circuit board toward the inside of the housing,
The upper case has a connector lid portion provided along the connector portion,
The lower case has a connector holding portion provided along the connector portion,
The connector lid portion and the connector holding portion form a dustproof wall by overlapping in the thickness direction of the connector lid portion and the connector holding portion.
5. The vehicle display device according to claim 4 , wherein:

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