JP3974839B2 - Head up display - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention provides a head-up that displays a combined image by projecting and reflecting an image on a combiner in a moving object, for example, a driver's seat of an automobile in front of a driver's seat. It belongs to the technical field of displays.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there is a head-up display (hereinafter referred to as HUD) as a display device that displays a moving object and its peripheral information within the moving object front view. There are a combiner (display device) as a display destination that is processed or mounted on a windshield and another that is used separately from the windshield. The advantage such as visibility is in the windshield integrated combiner, but the visibility may be significantly lowered depending on the surrounding conditions (brightness and the like).
For this reason, there is one that detects the scenery outside the vehicle and changes the color and transparency of the display screen (see, for example, Patent Document 1).
[0003]
In some cases, a display device integrated with a windshield is made of polymer-dispersed liquid crystal, and the transmittance is changed by applying a voltage (see, for example, Patent Document 2).
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 10-311732
[0005]
[Patent Document 2]
JP-A-11-139179
[0006]
[Problems to be solved by the invention]
However, the conventional head-up display has a problem that a control unit or the like is required and the entire system is enlarged.
[0007]
The present invention has been made paying attention to the above problems, and its purpose is to respond to the brightness of the surrounding situation and the necessary display contents of the head-up display.
An object of the present invention is to provide a head-up display capable of selecting and using a combiner.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, according to the first aspect of the present invention, in a head-up display that displays an image on a combiner that transmits light and reflects a projected image,
A windshield integrated combiner is provided integrally with the windshield of an automobile, and an image irradiation unit for projecting an image is provided on the windshield integrated combiner. With different transmittance than the windshield integrated combiner The combiner of the windshield is provided in the front part of the vehicle interior so that the position of the combiner can be changed, and the combiner for selecting the windshield and the combiner selecting means block the projection from the image irradiation unit to the windshield integrated combiner. And a state in which the separate combiner is positioned so as not to block projection from the image irradiation unit to the windshield integrated combiner. It was.
[0015]
Claim 2 In the described invention, the image irradiation unit is provided inside the instrument panel below the windshield, the opening for projection from the image irradiation unit is provided in the instrument panel, and the windshield integrated combiner and the combiner selection means are: Projecting a separate combiner upward from the opening to project the image onto a separate combiner so as to block projection from the image irradiation unit to the windshield integrated combiner, and projecting the image from the image irradiation unit to the windshield integrated combiner It is characterized by selecting a state in which a separate combiner is stored inside the instrument panel so as not to block the screen, and a state in which the separate combiner is positioned so as to close the opening when the head-up display is not used. As a means.
[0016]
Claim 3 In the described invention, the windshield-integrated combiner and the selecting means for the combiner are connected so that the expansion / contraction part that expands and contracts by driving and the link member is arranged in a rectangular shape so as to be a rotary node that can rotate back and forth, so that the rectangular shape is crushed. A rectangular link portion that accumulates, a protruding portion that protrudes from the upper and lower sides of the rectangular link portion, and an engaging portion that contacts the protruding portion at a predetermined position,
Attach the upper side of the rectangular link part to the lower surface of the combiner, connect the elastic part and rectangular link part, retract the elastic part to collapse the rectangular link part, store it inside the instrument panel, and extend the elastic part The state in which the combiner closes the opening of the instrument panel and moves upward from the opening by moving the rectangular link to a rectangular shape by rotating the one side of the rectangular link by bringing the protruding portion into contact with the engaging portion. It was set as the means characterized by making it the use condition which protrudes.
[0017]
[Operation and effect of the invention]
In the invention according to claim 1, by providing a plurality of combiners having different transmittances and providing a combiner selection means, a combiner having different transmittances is selected according to the surrounding situation and display contents, and the surrounding situation is selected. The head-up display is easy to see without being affected.
[0023]
Also The image is projected from the image irradiator to the windshield integrated combiner of the car, and when selecting a separate combiner, the image is emitted from the separate combiner provided at the front of the car interior so that the position can be changed. It is positioned so as to block the projection from the front to the windshield integrated combiner, and projected from the image irradiator to a separate combiner. If a windshield combiner that can see less is difficult to see depending on the surrounding conditions, select it as a separate combiner from the windshield, and it is easy to see without being influenced by the situation. Can be.
[0024]
Claim 2 In the described invention, in a state where it is not used, a separate combiner is positioned so as to block the opening of the instrument panel, and dust and dust are prevented from adhering to the image irradiation unit provided in the instrument panel. When it is used in good condition and projected onto the windshield-integrated combiner, a separate combiner can be stored in the instrument panel so that it does not get in the way of other equipment and improve its appearance. . When using a separate combiner, the separate combiner is used by protruding from the opening. Therefore, it can be used in a good state, has a good appearance, and can be an easy-to-see automotive head-up display without being influenced by the situation.
[0025]
Claim 3 In the described invention, when the combiner is stored inside the instrument panel, the expansion / contraction part is contracted to collapse the rectangular link part. Since the lower surface of the combiner is attached to the upper side of the rectangular link portion, the combiner becomes a folded side of the rectangular link portion and is stored in a space-saving manner.
[0026]
The combiner closes the opening of the instrument panel, and the combiner
To use this, the extendable part is extended by driving and the combiner is moved upward together with the rectangular link part. When reaching a predetermined position, the projecting part and the engaging part come into contact with each other, and the extension part is further extended, so that the projecting part is stopped moving, and one side of the rectangular link part provided with the projecting part can freely rotate. When the knot is further moved, one side of the rectangular link portion provided with the protruding portion rotates. As a result, the rectangular link portion moves back to a rectangular shape, and the combiner rises. The rising position of the combiner is stopped halfway to close the opening of the instrument panel, and the combiner is raised to the use state.
[0027]
In this way, by changing the state of the separate combiner between the rectangular link part and the expansion / contraction part with a simple structure, the cost can be reduced and the space can be saved, and the degree of freedom in designing the front part in the vehicle interior can be secured. .
[0028]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment for realizing the head-up display of the present invention will be described based on examples corresponding to the inventions according to claims 1 to 9.
[0029]
(Example)
[0030]
First, the configuration will be described.
FIG. 1 is a block diagram illustrating a head-up display control apparatus according to an embodiment. FIG. 2 is a flowchart showing the control of the head-up display of the embodiment. FIG. 3 is a perspective view illustrating a night mode state of the head-up display according to the embodiment. 1-3, 1 is a control unit, 2 is a display control unit, 3 is a display unit, 41 is an operation unit, 42 is an operation unit (light detection means), 5 is a mechanism unit, and 6 is a clock. , 7 is a sensor (irradiation detecting means), 8 is GPS, 11 is a combiner, 12 is a combiner bracket, 13 and 14 are combiner holders, 15 is a stopper (protrusion), 16 is a connecting bar (12, 13, 14, 16 , 17 is a guide plate, 18, 19 and 20 are link bars (expandable parts), 21 is an actuator, (12 to 21 constitute a selection means), 22 is a combiner cover, and 23 is Image irradiation device, 231 is an image display element, 232 is a mirror, 24 is an integrated windshield combiner, 30 is an instrument panel, A1 is light including image (information), A2 is the front limit Light containing image (information), A3 is light including the rear limit image (information), A4 is a light containing image (information).
[0031]
The present embodiment is an example of a head-up display provided on the instrument panel 30 at the front of the automobile.
[0032]
First, as shown in FIGS. 3 to 8, in the head-up display of the embodiment, an image irradiation device 23 that irradiates an image is provided inside the instrument panel 30 that is below an opening provided in the instrument panel 30. A frame-shaped combiner cover 22 is provided in the opening provided in the instrument panel 30.
[0033]
The image irradiation device 23 is configured to reflect light including an image (information) emitted from the image display element 231 by a mirror 232 and irradiate upward from the opening of the combiner cover 22.
[0034]
Next, the combiner bracket 12 is disposed on the upper side of the rectangle, the combiner holders 13 and 14 are disposed on the side of the rectangle, and the connecting bar 16 is disposed on the lower side of the rectangle. The rectangular portion can be freely folded so that the rectangle is crushed by a rotatable node.
[0035]
Next, combiner brackets 12 are attached to the lower surfaces of both sides of the combiner 11 that transmits light with a predetermined transmittance and reflects and displays an image, and rectangular portions are provided on both sides of the combiner 11.
[0036]
A guide plate 17 having slits extending obliquely downward on the front side is provided on both lower sides of the opening of the instrument panel 30, and the connection bars 16 are engaged so that both nodes can slide along the slits. To.
[0037]
The connecting bars 16 on both sides are connected by a horizontally long link bar 18 so as to slide integrally.
[0038]
An actuator 21 that is rotationally driven by control from the control unit 1 is provided obliquely below the front side of the image irradiation device 23. A link bar 20 extending in the outer peripheral direction is fixed to the output shaft of the actuator 21, and the link bar 20 and the link bar 18 are further connected via a link bar 19. These link bars 18, 19, and 20 are connected so as to be rotatable nodes on a rotation axis parallel to the output shaft of the actuator 21.
[0039]
Further, a stopper 15 is provided at the lower end portion of the combiner holder 13 on the near side, and an engaging portion that abuts against the protruding portion is provided at a predetermined position above the guide plate 17.
[0040]
Moreover, as shown in FIGS. 6-8, the windshield integrated combiner 24 which changed the transmittance | permeability so that it could be used as the combiner 11 was provided in the windshield above the image irradiation apparatus 23. FIG.
[0041]
These link mechanism and actuator 21 are referred to as a mechanism unit 5. Further, the vehicle equipped with the head-up display of this embodiment is equipped with a solar radiation sensor 7, a clock 6, and a GPS 8.
[0042]
As shown in FIG. 1, the control device for controlling the head-up display includes a timepiece 6 that outputs time as a signal, a solar radiation sensor 7 that detects the intensity of sunlight and emits a signal, and a vehicle from a signal from a satellite. GPS 8 for detecting the position of the vehicle, an operation unit 41 for outputting the ON / OFF signal of the ignition switch, and an operation unit 42 for outputting the ON / OFF signal of the headlight, and inputting and processing these information as signals The control unit 1 is provided, the mechanism unit 5 that drives the actuator 21 with the output signal from the control unit 1 is provided, and the display control unit 21 that controls the image irradiation device 23 with the output signal from the control unit 1 is provided.
[0043]
The image irradiation device 23, the combiner 11, and the windshield integrated combiner 24 are referred to as the display unit 3.
[0044]
Next, a flowchart showing a flow of information processing in the control unit 1 will be described.
[0045]
In step S <b> 1, it is determined whether the ignition is ON or OFF based on a signal from the ignition switch of the operation unit 41.
[0046]
In step S2, it is determined whether the headlight is ON or OFF based on a signal from the light switch of the operation unit 42.
[0047]
In step S3, it is determined whether or not the surrounding environment is dark based on the signal from the sensor 7 and the time signal of the clock 6.
[0048]
In step S4, it is determined whether or not the vehicle is in a tunnel based on a signal from GPS8.
[0049]
In step S5, a signal is sent to the mechanism unit 5 so that the combiner 11 is raised and used as a daytime mode.
[0050]
In step S6, a signal is sent to the mechanism unit 5 so that the combiner 11 is stored in the night mode.
In the present embodiment, the combiner 11 is housed in the instrument panel 30, the state in which the windshield integrated combiner 24 is used is the night mode, the state in which the combiner 11 is erected is the day mode, and the head-up display is not used. Is the initial state (lid closed state).
[0051]
Next, the operation will be described.
[0052]
First, control will be described.
[0053]
[Judgment of the surrounding environment]
[0054]
1 Engine start / stop judgment
In step S1, if the ignition switch is OFF, it is determined that the engine has stopped, and an initial state (lid closed state) is set.
[0055]
2 When driving at night
When the driver turns on the headlight when traveling at night, it is determined that the light is turned on in step S2 in the state where it is determined that the engine is starting in step S1, and the night mode is set.
[0056]
3In the evening, morning, dark road
If the light is not lighted or if the light is not lighted because the driver does not notice it, or if the light is not lighted but dark, such as in a crowded road or a mountainous road If it is determined in step S2 that the light is off, and if it is determined in step S3 that the ambient environment is dark from the time and solar sensor 7, the night mode is set.
[0057]
When going through the tunnel in the daytime
When passing through the tunnel without turning on the light in the daytime, even if it is determined in step S3 that the surrounding environment is bright, if it is determined in step S4 that the vehicle is traveling in the tunnel based on information from the GPS 8 , Switch to night mode.
[0058]
Next, the display switching action of the head-up display will be described.
[0059]
[Change from initial mode to night mode]
[0060]
In order to change from the initial state shown in FIGS. 4 and 7 to the night mode, when the actuator 21 is operated by a signal from the control unit 1, the link bars 19 and 20 are folded by the rotation of the output shaft. Pull diagonally downward. As a result, the connecting bar 16 moves obliquely downward along the slit of the guide plate 17, and the combiner 11 and the entire rectangular link portion are drawn into the instrument panel 30.
[0061]
The position where the combiner 11 is drawn is emitted from the image irradiating device 23 to the place where there is no combiner 11 between the vehicle rear limit A3 and the vehicle front limit A2 of the light including the image, that is, from the image irradiating device 23 to the windshield integrated combiner 24. Until the position where the optical path is not blocked. If it moves to this position, the actuator 21 is stopped by the limit switch. As a result, as shown in FIGS. 3 and 6, the light emitted from the image irradiation device 23 is reflected by the windshield integrated combiner 24 to display an image, so that the driver can use the windscreen integrated combiner 24 from the image irradiation device 23. You can see the video.
[0062]
[Change from night mode to initial mode and day mode]
[0063]
In order to change the combiner 11 from the night mode stored in the instrument panel 30 to the initial mode and the day mode, the actuator 21 is rotated by a signal from the control unit 1 so as to rotate in the reverse direction to the change to the night mode. Operate. As a result, the link bars 19 and 20 are folded, and the connecting bar 16 moves obliquely upward along the slits of the guide plate 17. Therefore, the combiner 11 and the rectangular link portion are directed toward the combiner cover 22 that is the opening of the instrument panel 30 as a whole.
[0064]
Further, when the combiner 11 approaches the combiner cover 22, the stopper 15 comes into contact with the engaging portion. When the combiner 11 and the rectangular link portion further move upward from this state, the rotatable attachment portion of the combiner holder 13 and the connecting bar 16 provided with the stopper 15 also moves, and the stopper 15 cannot be moved. The holder 13 rotates.
[0065]
When the combiner holder 13 rotates, the combiner 11 rises so that the combiner bracket 12, the combiner holders 13 and 14, and the connecting bar 16 return from a folded shape to a rectangular shape.
[0066]
In this way, when the combiner 11 reaches a position where it closes the opening of the combiner cover 22 of the instrument panel 30, the actuator 21 is stopped by the limit switch. As a result, the combiner 11 is brought into an initial state as shown in FIGS.
[0067]
When the actuator 21 is further operated from this state, the combiner holder 13 provided with the stopper 15 and the rotatable mounting portion of the connecting bar 16 are further moved, and the stopper 15 cannot be moved. Rotate further.
[0068]
When the combiner holder 13 further rotates, the combiner 11 rises so that the combiner bracket 12, the combiner holders 13 and 14, and the connecting bar 16 return to the rectangular shape from the folded shape, and the combiner 11 and the combiner holders 13 and 14 become the combiner. The cover 11 protrudes from the opening of the cover 22, and the combiner 11 receives light from the image irradiation device 23 at a predetermined angle. When this position is reached, the actuator 21 is stopped by the limit switch. Accordingly, as shown in FIGS. 5 and 8, the daytime mode in which the combiner 11 is used can be set, and the driver can view the image from the image irradiation device 23 by the combiner 11.
[0069]
Next, the effect will be described.
[0070]
In the head-up display of the embodiment, the effects listed below can be obtained.
[0071]
(1) In the head-up display that displays an image on the combiner 11 that transmits light and reflects the projected image, a plurality of combiners 11 having different transmittances are provided, and the control unit 1 and the mechanism unit 5 of the combiner 11 are provided. By selecting a combiner 11 having a different transmittance according to the surrounding situation and display contents, the head-up display can be easily seen regardless of the surrounding situation.
[0072]
(2) The windshield integrated combiner 24 is provided as a first combiner integrally with the windshield of the automobile, and the combiner 11 is provided as a second combiner separate from the windshield in the front of the automobile interior. Since the control unit 1 and the mechanism unit 5 of the combiner 11 are provided, the windshield integrated combiner 24 provided on the windshield of the automobile and the separate combiner 11 are selected according to the surrounding situation and display contents. In this way, it is easy to see regardless of the surrounding situation.
[0073]
(3) Since a light switch for detecting whether the headlight of the automobile is turned on or off is provided, the control unit 1 and the mechanism unit 5 select the combiner 11 based on the on / off information from the light switch. A head that is easy to see without being influenced by the surroundings by selecting the combiner 11 according to the situation by discriminating between the dark surroundings such as at night or inside the tunnel and the bright surroundings such as daytime or outside the tunnel based on the lighting on / off information from the switch. Can be an up display.
[0074]
(4) Since the solar sensor 7 for detecting the intensity of sunlight is provided, and the control unit 1 and the mechanism unit 5 select the combiner 11 based on the solar radiation information from the solar sensor 7, the solar sensor 7 By determining the day and night, the weather, etc., and selecting the combiner 11 according to the situation, the head-up display can be easily seen regardless of the surrounding situation.
[0075]
(5) Since the control unit 1 selects the combiner 11 based on the time information from the clock 6, the time information from the clock 6 is used to discriminate between day and night, and the combiner according to the situation. 11 can be selected to make the head-up display easy to see without being influenced by the surrounding situation.
[0076]
(6) Since the controller 1 is provided with a tunnel inside / outside determination unit that determines whether the vehicle is in the tunnel based on information from the GPS 8, and the control unit 1 selects the combiner 11 based on the information in the tunnel inside / outside determination unit. The control unit 1 determines whether the vehicle is inside the tunnel based on information from the GPS 8, selects the combiner 11 according to the dark surrounding situation inside the tunnel and the bright surrounding situation outside the tunnel, and is not affected by the surrounding situation. Easy-to-read head-up display.
[0077]
(7) The windshield integrated combiner 24 is provided integrally with the windshield of the automobile, the image irradiation device 23 for projecting an image onto the windshield integrated combiner 24 is provided, and the combiner 11 separate from the windshield is attached to the front of the automobile interior. The windshield integrated combiner 24 and the control unit 1 and the mechanism unit 5 of the combiner 11 are imaged on the separate combiner 11 so as to block the projection from the image irradiation device 23 onto the windshield integrated combiner 24. In the daytime mode for projecting the image and the night mode in which the separate combiner 11 is positioned so as not to block the projection from the image irradiating device 23 to the windshield integrated combiner 24. Fluorocarbon can be seen with little change from the state of eyes looking through the windshield When the glass-integrated combiner 24 becomes difficult to see depending on the surrounding conditions, it is selected as the combiner 11 that is separate from the windshield and used in the night mode, so that the head-up display for automobiles is easy to see regardless of the situation. it can.
[0078]
(8) The image irradiation device 23 is provided inside the instrument panel 30 below the windshield, the opening for projection from the image irradiation device 23 is provided in the instrument panel 30, and the windshield integrated combiner 24 and the combiner 11 A daytime mode in which the separate combiner 11 projects upward from the opening so as to block the projection from the image irradiation device 23 to the windshield integrated combiner 24, and the image is projected onto the separate combiner 11; The night mode in which the separate combiner 11 is stored inside the instrument panel 30 so as not to block the projection from the device 23 to the windshield integrated combiner 24, and the separate combiner 11 is opened when the head-up display is not used. It is characterized by selecting the initial state to be positioned so as to block In the state, dust and dust are prevented from adhering to the image irradiation device 23 provided in the instrument panel 30 so that it can be used in a good state. In the night mode, the separate combiner 11 is attached to the instrument panel 30. It can be stored inside to prevent other devices from getting in the way and improve its appearance. Further, in the daytime mode, the separate combiner 11 is used by projecting from the opening, so that it can be used in a good state, has a good appearance, and is easy to see without being affected by the situation.
[0079]
(9) The windshield-integrated combiner 24 and the combiner 11 are selected by means of link bars 19 and 20 that expand and contract by driving, a combiner bracket 12, a combiner holder 13 and 14, a connecting bar 16 that collapses to collapse a rectangle, and a combiner holder 13 includes a stopper 15 projecting from one side, and an engaging portion that contacts the stopper 15 at a predetermined position. The upper side of the combiner bracket 12 is attached to the lower surface of the combiner 11, and the link bars 19, 20 and the connecting bar 16 are linked. Connected via the bar 18, the link bars 19, 20 are shrunk and folded into a rectangular shape so that they are collapsed and stored inside the instrument panel 30, the link bars 19, 20 are extended, and the stopper 15 is Rotate the combiner holder 13 of the rectangular link part in contact with the engaging part In order to make the combiner 11 into a state in which the combiner 11 closes the combiner cover 22 and in a use state that protrudes upward from the combiner cover 22, the combiner 11 is instrumented. When storing in the panel 30, the space can be saved.
[0080]
Moreover, in order to make the combiner 11 block the combiner cover 22 and use the combiner 11, the state of the separate combiner 11 is changed with a rectangular link portion with simple configuration and the link bars 18, 19, 20. As a result, the cost can be reduced and the space can be saved, and the degree of freedom in designing the front part in the automobile compartment can be secured.
[0081]
The head-up display according to the present invention has been described above based on the implementation. However, the specific configuration is not limited to the embodiment, and unless it departs from the gist of the invention according to each claim of the claims. Design changes and additions are allowed.
[0082]
For example, in the embodiment, the combiner 11 is moved up from the instrument panel 30 by the expansion and contraction part and the rectangular link part. However, the combiner 11 is stored in a state where it is stood on the back side of the image irradiation device 23. It is also possible to tilt the front side after pulling upward while standing.
[Brief description of the drawings]
FIG. 1 is a block diagram illustrating a head-up display control apparatus according to an embodiment.
FIG. 2 is a flowchart illustrating control of the head-up display according to the embodiment.
FIG. 3 is a perspective view illustrating a night mode state of the head-up display according to the embodiment.
FIG. 4 is a perspective view illustrating an initial state of the head-up display according to the embodiment.
FIG. 5 is a perspective view illustrating a day mode state of the head-up display according to the embodiment.
FIG. 6 is a perspective view illustrating a night mode state of the head-up display according to the embodiment.
FIG. 7 is an explanatory diagram illustrating an initial state of the head-up display according to the embodiment.
FIG. 8 is a perspective view illustrating a day mode state of the head-up display according to the embodiment.
FIG. 9 is an explanatory diagram illustrating a day mode state of the head-up display according to the embodiment.
[Explanation of symbols]
1 Control unit
2 Display controller
3 Display section
41 Operation unit
42 Operation unit
5 Mechanism part
6 Clock
7 Sensor
8 GPS
11 Combiner
12 Combiner bracket
13 Combiner holder
14 Combiner holder
15 Stopper
16 Connecting bar
17 Guide plate
18 Link bar
19 Link bar
20 Link bar
21 Actuator
22 Combiner cover
23 Image irradiation device
231 Image display element
232 mirror
24 Combined windshield combiner
30 Instrument panel
A1 Light including video (information)
A2 Light including video (information) at the front limit
A3 Light including rear limit image (information)
A4 Light including video (information)

Claims (3)

In a head-up display that displays an image on a combiner that transmits light and reflects a projected image,
A windshield integrated combiner is provided integrally with the windshield of an automobile, and an image irradiation unit for projecting an image onto the windshield integrated combiner is provided. The combiner is separate from the windshield and has a different transmittance from the windshield integrated combiner. The windshield-integrated combiner and the combiner selecting means are arranged on the front part of the vehicle interior so that the projection from the image irradiation unit to the windshield-integrated combiner is blocked. And a state in which the separate combiner is positioned so as not to block projection from the image irradiation unit to the windshield-integrated combiner. . The head-up display according to claim 1,
An image irradiation unit is provided inside the instrument panel below the windshield, an opening for projection from the image irradiation unit is provided in the instrument panel, and the windshield-integrated combiner and the selection means of the combiner include the image and a state of projecting an image on the combiner separate the combiner of the separate so as to block a projection projecting upward from the opening to the windshield integral combiner from the irradiation portion, the front glass from the image irradiation portion A state in which the separate combiner is stored inside the instrument panel so as not to block projection onto the integrated combiner, and a state in which the separate combiner is positioned so as to block the opening when the head-up display is not used. Head-up display, characterized in that it is configured to select B. The head-up display according to claim 2,
A rectangle that collapses to collapse the rectangle by connecting the windshield-integrated combiner and the selection means of the combiner so that the expansion and contraction part that expands and contracts by driving and the link member is arranged in a rectangle so that it becomes a rotary node that can rotate back and forth A link part, a protrusion part protruded from the upper and lower sides of the rectangular link part, and an engagement part that contacts the protrusion part at a predetermined position,
The upper side of the rectangular link portion is attached to the lower surface of the combiner, the expansion / contraction portion and the rectangular link portion are connected, the expansion / contraction portion is shrunk to collapse the rectangular link portion, and stored inside the instrument panel, and the expansion / contraction portion The state in which the combiner closes the opening of the instrument panel with the movement of returning the rectangular link portion to a rectangular shape by rotating the one side of the rectangular link portion by bringing the protrusion into contact with the engaging portion and opening the A head-up display, wherein the head-up display protrudes upward from the part.

Images