Display device for vehicle

Abstract

A display device for a vehicle may include: a screen; an image generation unit that outputs a projection image; a first reflection unit having a first reflection surface that reflects the projection image output from the image generation unit to a screen; a second reflection unit having a second reflection surface that reflects the projection image output from the image generation unit toward the windshield; and an adjuster that changes at least one of the position of the first reflection unit, the angle of the first reflection unit, the position of the second reflection unit, and the angle of the second reflection unit.

Description

Technical Field

[0001] The present invention relates to a display device for a vehicle. Background Art

[0002] For example, a display is configured in an instrument cluster to display various information. On the other hand, in order to display vehicle driving information, there is a trend of installing various displays such as AVN (Audio Video Navigation) displays and head-up displays that output projected images to the windshield in addition to the instrument cluster on the vehicle.

[0003] The United States authorized patent publication US10,298,890 (patent issued on May 21, 2019) relates to a vehicle display device, which discloses an instrument cluster display based on image projection, wherein the instrument cluster display includes a projector and a reflector that reflects display light generated in the projector toward a screen. Summary of the invention

[0004] Problem that the invention aims to solve

[0005] The present embodiment provides a vehicle display device, which can provide a screen image and a HUD image simultaneously using one image generation unit.

[0006] The present embodiment provides a vehicle display device, which can make the size or position of an image displayed on a screen variable.

[0007] This embodiment provides a vehicle display device that enables the size or position of a HUD image to be variable.

[0008] Means used to solve problems

[0009] The vehicle display device of the present embodiment includes: a screen; an image generating unit that outputs a projected image; a first reflecting unit having a first reflecting surface that reflects the projected image output from the image generating unit toward the screen; a second reflecting unit having a second reflecting surface that reflects the projected image output from the image generating unit toward the windshield; and an adjuster that changes at least one of a position of the first reflecting unit and an angle of the first reflecting unit and a position of the second reflecting unit and an angle of the second reflecting unit.

[0010] A distance between the image generating unit and the first reflecting unit may be shorter than a distance between the image generating unit and the second reflecting unit.

[0011] A distance between the windshield and the first reflecting unit may be longer than a distance between the windshield and the second reflecting unit.

[0012] The angle of the first reflecting unit and the angle of the second reflecting unit may be different.

[0013] The first reflecting unit and the second reflecting unit may be inclined in opposite directions.

[0014] The first reflecting unit and the second reflecting unit may be parallel.

[0015] The adjuster may include an elevator for moving the position of the first reflecting unit.

[0016] The first reflection unit can be moved to a first position and a second position by a lifter. The first position can be a position where the projection image output from the image generating unit is dispersed to the first reflection unit and the second reflection unit. The second position can be a position where the first reflection unit reflects all the projection images output from the image generating unit to the screen.

[0017] The first reflection unit may be configured to be movable to a third position using a lifter, and the third position may be a position where the projection image output from the image generation unit is not reflected by the first reflection unit.

[0018] The adjuster may include a rotor that changes the angle of the first reflecting unit.

[0019] The first reflection unit can be changed to a first angle or a second angle by a rotor.

[0020] The first angle may be an angle at which the first reflection unit reflects the projection image output from the image generation unit toward a first height of the screen.

[0021] The second angle may be an angle at which the first reflection unit reflects the projection image output from the image generation unit toward a second height of the screen, and the second height of the screen may be higher than the first height of the screen.

[0022] The adjuster may further include an elevator for moving the position of the second reflecting unit.

[0023] The adjuster may include a rotor that changes the angle of the second reflecting unit.

[0024] The second reflection unit can be changed to a first angle and a second angle by a rotor.

[0025] The first angle may be an angle at which the projection image output from the image generation unit is reflected toward a first height of the windshield.

[0026] The second angle may be an angle at which the projection image output from the image generation unit is reflected toward a second height of the windshield, and the second height of the windshield may be lower than the first height of the windshield.

[0027] The vehicle display device may further include: an input interface for user input; and an MCU for controlling at least one position or angle of the first reflecting unit and the second reflecting unit according to the input of the input interface.

[0028] Effects of the Invention

[0029] According to this embodiment, one image generation unit can use the first reflection unit and the second reflection unit to simultaneously generate an image of the screen and an image of the HUD.

[0030] In addition, the adjuster can change the size or position of the image displayed on the screen by changing at least one of the position of the first reflection unit, the angle of the first reflection unit, the position of the second reflection unit, and the angle of the second reflection unit, and can also change the size or position of the image displayed using the HUD. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a perspective view showing a first example of the vehicle display device according to the present embodiment.

[0032] Figure 2 It is a side view showing a first example of the vehicle display device according to the present embodiment.

[0033] Figure 3 It is shown Figure 2 FIG. 4 is a side view of an example in which the position of the first reflecting unit is adjusted.

[0034] Figure 4 It is a diagram showing a display formed as a first example of the vehicle display device according to the present embodiment.

[0035] Figure 5 It is a side view showing a second example of the vehicle display device according to the present embodiment.

[0036] Figure 6 It is shown Figure 5 FIG. 4 is a side view of an example in which the position of the first reflecting unit is adjusted.

[0037] Figure 7 It is a diagram showing a display formed as a second example of the vehicle display device according to the present embodiment.

[0038] Figure 8 It is a side view showing a third example of the vehicle display device according to the present embodiment.

[0039] Fig. 9 It is shown Figure 8 0 is a side view of an example in which the angle of the first reflecting unit and the angle of the second reflecting unit are adjusted.

[0040] Fig.10It is a side view showing a fourth example of the vehicle display device according to the present embodiment.

[0041] Fig.11 It is shown in Fig.10 0 is a side view of an example in which the position and angle of the first reflecting unit are adjusted.

[0042] Fig.12 It is a side view showing a fifth example of the vehicle display device according to the present embodiment.

[0043] Fig.13 It is shown in Fig.12 0 is a side view of an example in which at least one of the position and the angle of the first reflecting unit is adjusted, and at least one of the position and the angle of the second reflecting unit is adjusted.

[0044] Fig.14 2 is a control block diagram showing the vehicle display device of the present embodiment. DETAILED DESCRIPTION

[0045] Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0046] Figure 1 1 is a perspective view showing a first example of a vehicle display device according to the present embodiment, Figure 2 is a side view showing a first example of a vehicle display device according to the present embodiment, Figure 3 It is shown Figure 2 A side view of an example in which the position of the first reflecting unit is adjusted is shown in FIG. Figure 4 It is a diagram showing a display formed as a first example of the vehicle display device according to the present embodiment.

[0047] The vehicle display device may be installed in a vehicle and may project images onto a screen and a vehicle windshield (hereinafter referred to as a windshield).

[0048] The vehicle display device may include an image generating unit 1 , a first reflecting unit 2 , a second reflecting unit 3 , and a screen 4 .

[0049] The vehicle display device can emit a first image to a screen 4 and a second image to a windshield 5 by using the image generation unit 1 .

[0050] The vehicle display device may be a dual projection display (DPD) that projects two images using the image generation unit 1 .

[0051] The screen 4 can constitute a cluster display of the vehicle together with the image generation unit 1 and the first reflection unit 2. The vehicle display device can use the screen 4 to display driving status, action information, and the like.

[0052] The windshield 5 can constitute a HUD (Head Up Display) together with the image generation unit 1 and the second reflection unit 3. The vehicle display device can display vehicle driving information using the windshield 5.

[0053] The vehicle display device can emit the first image to the screen 4 and the second image to the windshield 5 at the same time. The vehicle display device can prevent the image from being emitted to the screen 4 and can focus the image on the windshield 5. The vehicle display device can prevent the image from being emitted to the windshield 5 and can focus the image on the screen 4.

[0054] The picture generation unit 1 (Picture Generation Unit; PGU) can output a projection image.

[0055] The image generating unit 1 may include a light output unit for outputting light.

[0056] The light output unit may include a light source and a digital mirror unit reflecting light output from the light source.

[0057] The light source may include an LED diode or a laser diode, etc.

[0058] The digital mirror unit may include a plurality of digital mirrors. An example of a digital micromirror unit may include a digital micromirror device (DMD).

[0059] The image generation unit 1 may further include a display device such as a liquid crystal panel that reflects light output from the light source.

[0060] If the display element is a liquid crystal panel, the liquid crystal panel may have a plurality of pixels for driving liquid crystals.

[0061] The image generating unit 1 may include a digital mirror control section for controlling the digital mirror unit, a light source control section for controlling the light source, and a panel control section for controlling the liquid crystal panel.

[0062] The image generation unit 1 may include a processor, and the processor may include a digital mirror control unit for controlling the digital mirror unit, a light source control unit for controlling the light source, and a panel control unit for controlling the liquid crystal panel.

[0063] The image generation unit 1 can output a projection image in a forward direction or in an oblique direction upward and forward.

[0064] The first reflection unit 2 may be configured to reflect the projection image output from the image generation unit 1 toward the screen 4. The first reflection unit 2 may be configured vertically or obliquely.

[0065] The back surface of the first reflection unit 2 may be a reflection surface 2 (first reflection surface) that reflects light. The first reflection unit 2 may be a reflection mirror having a first reflection surface 21 formed on the back surface.

[0066] The second reflecting unit 3 may be configured to reflect the projection image output from the image generating unit 1 toward the windshield 5. The second reflecting unit 3 may be configured vertically or obliquely.

[0067] The back side of the second reflection unit 3 may be a reflection surface 31 (second reflection surface) for reflecting light. The second reflection unit 3 may be a reflection mirror with the back side forming the first reflection surface 31 .

[0068] The screen 4 may be a transmissive screen. The screen 4 may include a transmissive medium, an optical sheet having a transmittance, or a variable transmittance portion having a variable transmittance, and the variable transmittance portion may include an electrical transmittance variable material such as PDLC (Polymer Dispersed Liquid Crystal).

[0069] The windshield 5 may be a reflective screen and may include a reflective medium.

[0070] The driver (ie, eye box) can recognize the image formed on the screen 4 and the image formed in front of the windshield 2 by the windshield 5 .

[0071] The angle of the first reflecting unit 2 and the angle of the second reflecting unit 3 may be different.

[0072] The first reflecting unit 2 and the second reflecting unit 3 may be inclined in opposite directions to each other.

[0073] The reflection surface 21 of the first reflection unit 2 may face the rear lower side, and the reflection surface 31 of the second reflection unit 3 may face the rear upper side.

[0074] A portion of the first reflection unit 2 may be located between the image generation unit 1 and the second reflection unit 3 .

[0075] A distance L1 (hereinafter referred to as a first distance) between the image generating unit 1 and the first reflecting unit 2 may be shorter than a distance L2 (hereinafter referred to as a second distance) between the image generating unit 1 and the second reflecting unit 3 .

[0076] The first distance L1 may be the shortest distance between the image generating unit 1 and the first reflecting unit 2 .

[0077] The second distance L2 may be the shortest distance between the image generating unit 1 and the second reflecting unit 3 .

[0078] A distance L3 (hereinafter referred to as a third distance) between the windshield 5 and the first reflecting unit 2 may be longer than a distance L4 (hereinafter referred to as a fourth distance) between the windshield 5 and the second reflecting unit 3 .

[0079] The third distance L3 may be the shortest distance between the windshield 5 and the first reflecting unit 2 .

[0080] The fourth distance P4 may be the shortest distance between the windshield 5 and the second reflecting unit 3 .

[0081] like Figure 3 As shown in (a), if the first reflecting unit 2 is at the first position P1, the third distance L3 and the fourth distance L4 may be the same or similar. Figure 3 As shown in (b), if the first reflecting unit 2 is at the second position P2, the third distance L3 may be longer than the fourth distance L4.

[0082] The vehicle display device can form a first light path (Path1, Path 1) connected by the image generating unit 1, the first reflecting unit 2 and the screen 4, and a second light path (Path 2, Path 2) connected by the image generating unit 1, the second reflecting unit 3 and the windshield 5.

[0083] The vehicle display device may make at least one of the first light path (Path 1) and the second light path (Path 2) variable. The vehicle display device may include an adjuster 6. The adjuster 6 may adjust the first light path (Path 1) or the second light path (Path 2).

[0084] The adjuster 6 can change at least one of the position of the first reflecting unit 2 , the angle of the first reflecting unit 2 , the position of the second reflecting unit 3 , and the angle of the second reflecting unit 3 .

[0085] The adjuster 6 can change the position of the first reflection unit 2. The adjuster 6 can include a lifter 61 (see Figure 2 ).

[0086] An example of the lifter 61 may include a lift motor 62 and at least one power transmission component 63, 64 that transmits the driving force of the lift motor 62 to the first reflection unit 2. Examples of the power transmission components 63, 64 may include a pinion 63 provided on the rotation shaft of the lift motor 62 and a rack 64 formed on the first reflection unit 2 and meshing with the pinion 63. Another example of the lifter 61 may be a linear motor or a power cylinder connected to the first reflection unit 2.

[0087] Of course, the lifter 61 is not limited to any type as long as it can move the first reflecting unit 2 , and all types can be applied.

[0088] The lifter 61 can change the position of the first reflecting unit 2 by moving the first reflecting unit 2 , thereby changing the position of the first reflecting surface 21 formed on the first reflecting unit 2 .

[0089] The adjuster 6 may further include a rotor 66 (see Figure 2 ).

[0090] The rotor 66 may be a rotation driving source for rotating the first reflecting unit 2. The rotor 66 may include a rotation motor connected to the first reflecting unit 2. Hereinafter, the reference numeral 66 is used together with the rotor and the rotation motor.

[0091] An example of the rotor 66 may include a rotary motor including a rotary shaft connected to the first reflecting unit 2. Another example of the rotor 66 may include a motor, an input shaft connected to the rotary shaft of the motor, and a reducer having an output shaft connected to the first reflecting unit 2. Of course, the rotor 66 is not limited to any type as long as it can rotate the first reflecting unit 2, and all structures are applicable.

[0092] The adjuster 6 may include either the lifter 61 or the rotor 66 , or may include both the lifter 61 and the rotor 66 .

[0093] If the adjuster 6 includes both the lifter 61 and the rotor 66 , in one example of the adjuster 6 , the rotor 66 can be connected to the first reflection unit 2 to rotate the first reflection unit 2 , and the lifter 61 can be connected to the rotor 66 to move the positions of the rotor 66 and the first reflection unit 2 .

[0094] In another example of the adjuster 6 , the lifter 61 may be connected to the first reflecting unit 2 to move the first reflecting unit 2 , and the rotor 66 may be connected to the lifter 61 to rotate the lifter 61 and the first reflecting unit 2 .

[0095] Figure 3 (a) is a diagram when the first reflection unit is in the first position, Figure 3 (b) is a diagram when the first reflecting unit is in the second position.

[0096] Figure 4 (a) is the image when the image is displayed on both the screen and the windshield. Figure 4 (b) is a diagram showing an image displayed on the screen but not on the windshield.

[0097] The first reflecting unit 2 may be moved to the first position P1 and the second position P2 by the lifter 61 .

[0098] like Figure 3As shown in (a), the first position P1 may be a position where the projection image output from the image generating unit 1 is dispersed toward the first reflecting unit 2 and the second reflecting unit 3 .

[0099] The first position P1 may be a position where the first reflective unit 2 is located on the first light path (Path 1). The first position P1 may be a position where the first reflective unit 2 does not block the second light path (Path 2).

[0100] The first reflecting unit 2 may be configured to move to a first position P1 excluding the second light path (Path 2) and a second position P2 located on the second light path (Path 2).

[0101] If the first reflection unit 2 is in the first position P1, the projected image emitted from the image generating device 1 can be divided into the first reflection surface 21 of the first reflection unit 2 and the second reflection surface 31 of the second reflection unit 3. The first reflection unit 2 can reflect a part of the projected image (first image) emitted from the image generating device 1 toward the screen 4, and the second reflection unit 3 can reflect the remaining projected image (second image) emitted from the image generating device 1 toward the windshield 5.

[0102] Figure 4 As shown in (a) of FIG. 4 , the user can check the image SI displayed on the screen 4 and the image WI displayed on the windshield 5 .

[0103] The second position P2 may be a position where the first reflection unit 2 reflects all of the projection image output from the image generation unit 1 toward the screen 4 .

[0104] like Figure 3 As shown in (b), the second position P2 may be a position where the first reflection unit 2 can block the second light path (Path2).

[0105] like Figure 3 As shown in (b), if the first reflection unit 2 is at the second position P2, the projection image emitted from the image generating device 1 can be completely reflected toward the screen 4 by the first reflection surface 21 of the first reflection unit 2.

[0106] If the first reflecting unit 2 is at the second position P2 , the second reflecting unit 3 may not be able to reflect the projection image emitted from the image generating device 1 toward the windshield 5 .

[0107] If the first reflection unit 2 is at the second position P2, the area of ​​the region reflecting the projected image in the first reflection surface 21 of the first reflection unit 2 can be wider than when the first reflection unit 2 is at the first position P1, and the image of the screen 4 can be enlarged than when the first reflection unit 2 is at the first position P1.

[0108] like Figure 4As shown in (b), the passenger can confirm the image displayed by the screen 4.

[0109] The angle of the first reflecting surface 21 of the first reflecting unit 2 can be changed by the rotor 66 .

[0110] If the rotor 66 rotates the first reflecting unit 2 , the position (ie, height) of the image displayed on the screen 4 can be changed.

[0111] The vehicle display device may include a housing 7 (see Figure 1 ).

[0112] The housing 7 may be disposed below the windshield 5. The housing 7 and the windshield 5 may be spaced apart from each other in the up-down direction.

[0113] The interior of the housing 7 may form a space.

[0114] The image display unit 1 , the first reflection unit 2 , the second reflection unit 3 and the adjuster 6 can be accommodated in the space of the housing 7 .

[0115] An opening may be formed on the back side of the housing 7 , and the screen 4 may be disposed on the back side of the housing 7 .

[0116] Figure 5 is a side view showing a second example of the vehicle display device of this embodiment, Figure 6 It is shown Figure 5 A side view of an example in which the position of the first reflecting unit is adjusted is shown in FIG. Figure 7 It is a diagram showing a display formed as a second example of the vehicle display device according to the present embodiment.

[0117] The second example of the vehicle display device may include an adjuster 6 , and the adjuster 6 may include an elevator 61 that moves the position of the first reflection unit 2 and a rotor 66 that changes the angle of the first reflection unit 2 .

[0118] The image display unit 1 , the first reflection unit 2 , and the second reflection unit 3 may be the same as those in the second example of the vehicle display device.

[0119] The lifter 61 may be the same as or similar to the lifter 61 of the first example of the vehicle display device, and the same reference numerals are used to avoid repeated descriptions, and detailed descriptions of the components are omitted.

[0120] The rotor 66 may be the same as or similar to the rotor 66 of the first example of the vehicle display device, and the same reference numerals are used to avoid duplication of description, and detailed description of the components is omitted.

[0121] Figure 6 (a) is a diagram when the first reflection unit is in the first position, Figure 6(b) is a diagram when the first reflecting unit is in the third position.

[0122] Figure 7 (a) is a diagram showing images on the screen and windshield, respectively. Figure 7 (b) is a diagram showing a case where the image is not displayed on the screen but is displayed on the windshield.

[0123] like Figure 6 As shown in (a), if the first reflection unit 2 is located at the first position P1, the projection image output from the image generation unit 1 may be dispersed toward the screen 4 and the windshield 5.

[0124] like Figure 7 As shown in FIG. 2 (a), if the first reflecting unit 2 is at the first position P1, the passenger can check the image SI displayed on the screen 4 and the image WI displayed on the windshield 5.

[0125] If the first reflecting unit 2 is located at the first position P1 , it is the same as the first example of the vehicle display device, and thus a detailed description thereof will be omitted to avoid duplication of descriptions.

[0126] The first reflecting unit 2 may be configured to be movable to the third position P3 using the lifter 61 .

[0127] The third position P3 may be a position where the projection image output from the image generating unit 1 is not reflected by the first reflecting unit 2 , the third position P3 may be a position where the first reflecting unit 2 does not form the first light path (Path 1 ), and the projection image output from the image generating unit 1 may not reach the screen 4 .

[0128] The third position P3 may be a position of the first reflecting unit 1 where the second reflecting unit 3 forms the second light path (Path 2).

[0129] like Figure 6 As shown in (b), the projection image emitted from the image generating unit 1 may all be directed toward the second reflection surface 31 of the second reflection unit 3 and may be reflected toward the windshield 5 .

[0130] If the first reflecting unit 2 is at the third position P3 , the passenger can only check the image WI displayed by the windshield 5 .

[0131] If the first reflecting unit 2 is at the third position P3, the size of the area in the second reflecting unit 3 that reflects the projected image may be larger than when the first reflecting unit 2 is at the first position P1.

[0132] If the first reflection unit 2 is at the third position P3, the size of the area where the projection image is displayed using the windshield 5 may be the same as the sum of the area where the screen 4 displays the projection image and the area where the projection image is displayed using the windshield 5 when the first reflection unit 2 is at the first position P1.

[0133] If the first reflecting unit 2 is changed to the third position P3 , the adjuster 6 may further change the angle of the first reflecting unit 2 by using the rotor 66 .

[0134] On the other hand, the adjuster 6 may further include a rotor 76 for changing the angle of the second reflecting unit 3. The rotor 76 for changing the angle of the second reflecting unit 3 may be a rotation drive source for rotating the second reflecting unit 3, and may include a rotation motor connected to the second reflecting unit 3. Hereinafter, the reference numeral 76 is used together for the rotor and the rotation motor.

[0135] In the following description, the rotor 76 that changes the angle of the second reflecting unit 3 is referred to as a second rotor.

[0136] If the first reflecting unit 2 is changed to the third position P3, the second rotor 76 can change the angle of the second reflecting unit 3, and the size of the area in the windshield 5 that reflects the projected image can be changed.

[0137] The second example of the vehicle display device can make the size of the image SI displayed on the screen 4 and the size of the image WI displayed on the windshield 5 variable, and can expand the size of the image SI displayed on the screen 4 or the size of the image WI displayed on the windshield 5 according to the requirements of the passenger.

[0138] Moving the first reflective unit 2 to the third position P3 may mean that the entire area of ​​the projected image is used as a HUD environment, and large-screen information such as AR-HUD may be provided during vehicle driving. On the other hand, in an autonomous driving mode or when the vehicle is not driving, the HUD may provide large-screen information of entertainment (video / movie).

[0139] Figure 8 is a side view showing a third example of the vehicle display device of this embodiment, Fig. 9 It is shown Figure 8 0 is a side view of an example in which the angle of the first reflecting unit and the angle of the second reflecting unit are adjusted.

[0140] The adjuster 6 of the third example of the vehicle display device may include a rotor 66 that changes the angle of the first reflecting unit 2 and a rotor 76 that changes the angle of the second reflecting unit 3 .

[0141] The third example of the vehicle display device can change the height of the image displayed on the screen 4 and the height of the image displayed on the windshield 5 by changing the angle of the first reflecting unit 2 and the angle of the second reflecting unit 3 .

[0142] Fig. 9 (a) is a diagram in which the height of the image displayed on the screen is low and the height of the image displayed using the windshield is high. Fig. 9 (b) is a diagram when the height of the image displayed on the screen is high and the height of the image displayed using the windshield is low.

[0143] In the following description, the rotor 66 that changes the angle of the first reflecting unit 2 is referred to as a first rotor, and the rotor 76 that changes the angle of the second reflecting unit 3 is referred to as a second rotor.

[0144] The first reflection unit 2 can be changed to a first angle θ1 and a second angle θ2 by using the first rotor 66. The first angle θ1 can be an angle at which the projection image output from the image generating unit 1 is reflected to a first height H1 of the screen 4. The second angle θ2 can be an angle at which the projection image output from the image generating unit 1 is reflected to a second height H2 of the screen 4.

[0145] The second height H2 of the screen 4 may be higher than the first height H1 of the screen 4 .

[0146] The third example of the vehicle display device can adjust the heights H1 and H2 of the image displayed on the screen 4 by using the first rotor 66 to suit the eye height of the passenger.

[0147] That is, the position of the display image displayed by the screen 4 can be changed.

[0148] The second reflection unit 3 can be changed to a first angle θ3 and a second angle θ4 by the second rotor 76. The first angle θ3 may be an angle at which the projection image output from the image generation unit 1 is reflected toward the first height H3 of the windshield 5, and the second angle θ4 may be an angle at which the projection image output from the image generation unit 1 is reflected toward the second height H4 of the windshield 5.

[0149] The second height H4 of the windshield 5 may be lower than the first height H3 of the windshield 5 .

[0150] The third example of the vehicle display device can change the position, ie, the height H3 and H4 of the image displayed on the windshield 5 by using the second rotor 76 .

[0151] That is, the position (height) of the image displayed by the HUD can be changed.

[0152] The third example of the vehicle display device may provide both the first rotor 66 for changing the angle of the first reflecting unit 2 and the second rotor 76 for changing the angle of the second reflecting unit 3 .

[0153] The first modified example of the third example of the vehicle display device may be an example in which only the first rotor 66 of the first rotor 66 and the second rotor 76 is provided.

[0154] The second modified example of the third example of the vehicle display device may be an example in which only the second rotor 76 is provided out of the first rotor 66 and the second rotor 76 .

[0155] Fig.10 1 is a side view showing a fourth example of the vehicle display device of the present embodiment, Fig.11 It is shown in Fig.10 0 is a side view of an example in which the position and angle of the first reflecting unit are adjusted.

[0156] The first reflecting unit 2 and the second reflecting unit 3 may be inclined in the same direction.

[0157] The first reflection surface 21 of the first reflection unit 2 may face the upper rear side, and the first reflection surface 31 of the second reflection unit 3 may face the upper rear side.

[0158] The first reflecting unit 2 and the second reflecting unit 3 may be parallel.

[0159] The height of the first reflecting unit 2 may be lower than that of the second reflecting unit 3 .

[0160] Fig.11 (a) is a diagram showing images on the screen and windshield, respectively. Fig.11 (b) is a diagram showing an image on the screen.

[0161] The adjuster 6 of the fourth example of the vehicle display device may include a lifter 61 that moves the position of the first reflection unit 2 and a rotor 66 that changes the angle of the first reflection unit 2 .

[0162] In the fourth example of the vehicle display device, the rotor 66 may be connected to the first reflection unit 2 to rotate the first reflection unit 2 , and the lifter 61 may be connected to the rotor 66 to move the positions of the rotor 66 and the first reflection unit 2 .

[0163] If the motor of the lifter 61 is driven, the position of the first reflecting unit 2 can be changed.

[0164] The lifter 61 can make the first reflective unit 2 descend to the first position P1 , at which time the first reflective unit 2 forms a first light path ( Path1 ) and the first reflective unit 3 forms a second light path ( Path 2 ).

[0165] The lifter 61 can lift the first reflective unit 2 to the second position P1 , at which time the first reflective unit 2 forms a first light path ( Path 1 ) and the first reflective unit 3 blocks the second light path ( Path 2 ).

[0166] If the rotation motor of the rotor 66 is driven, the angle of the first reflecting unit 2 can be changed.

[0167] The rotor 66 may rotate the first reflecting unit 2 to a first angle θ1 at which the first reflecting unit 2 forms the first light path (Path 1 ) and does not block the second light path (Path 2 ).

[0168] The rotor 66 may rotate the first reflecting unit 2 to a second angle θ2 at which the first reflecting unit 2 forms the first light path (Path 1 ) and blocks the second light path (Path 2 ).

[0169] If the motor of the lifter 61 is driven and the rotation motor of the rotor 66 is driven, the projection image output from the image generating device 1 can be entirely reflected toward the screen 4 by the first reflection unit 2. The size of the image displayed on the screen 4 can be expanded.

[0170] If the first reflection unit 2 is in the second position or the second angle, the size of the image displayed on the screen 4 can be the same as the sum of the area where the screen 4 displays the projected image and the area where the projected image is displayed using the windshield 5 when the first reflection unit 2 is in the first position or the first angle.

[0171] In the modification of the fourth example of the vehicle display device, the lifter 61 is connected to the first reflection unit 2 to move the position of the first reflection unit 2 , and the rotor 66 is connected to the lifter 61 to rotate the lifter 61 and the first reflection unit 2 .

[0172] The fourth example of the vehicle display device of this embodiment is similar to the first example of the vehicle display device, and can change the position of the first reflection unit 2 or the angle of the first reflection unit 2, and can also change the size of the image displayed on the screen 3.

[0173] Fig.12 1 is a side view showing a fifth example of the vehicle display device of the present embodiment, Fig.13 It is shown in Fig.12 0 is a side view of an example in which at least one of the position and the angle of the first reflecting unit is adjusted, and at least one of the position and the angle of the second reflecting unit is adjusted.

[0174] The first reflecting unit 2 and the second reflecting unit 3 may be inclined in the same direction.

[0175] The reflection surface 21 of the first reflection unit 2 may face the upper rear side, and the reflection surface 31 of the second reflection unit 3 may face the upper rear side.

[0176] The first reflecting unit 2 and the second reflecting unit 3 may be parallel.

[0177] The height of the first reflecting unit 2 may be lower than that of the second reflecting unit 3 .

[0178] In the fifth example of the vehicle display device, the adjuster 6 may include a lifter 61 that moves the position of the first reflecting unit 2 and a rotor 66 that changes the angle of the first reflecting unit 2 .

[0179] The case where the position of the first reflecting unit 2 is moved and the angle of the first reflecting unit 2 is changed may be the same as or similar to the fourth example of the vehicle display device.

[0180] In the fifth example of the vehicle display device, the adjuster 6 may include a lifter 71 that moves the position of the second reflecting unit 3 and a rotor 76 that changes the angle of the second reflecting unit 3 .

[0181] In the following, the lifter 61 that moves the position of the first reflecting unit 2 will be referred to as the first lifter 61, the rotor 66 that changes the angle of the first reflecting unit 2 will be referred to as the first rotor 66, the lifter 71 that moves the position of the second reflecting unit 3 will be referred to as the second lifter 71, and the rotor 76 that changes the angle of the second reflecting unit 3 will be referred to as the second rotor 76.

[0182] The second lifter 71 may have the same structure as the first lifter 61 .

[0183] The second lifter 71 may further include a lift motor 72, and at least one power transmission component 73, 74 for transmitting the driving force of the lift motor 72 to the second reflection unit 3. Examples of the power transmission components 73, 74 may include a pinion 73 provided on the rotation shaft of the lift motor 72, and a rack 74 formed on the second reflection unit 3 and meshing with the pinion 73. Another example of the second lifter 71 may be a linear motor or a cylinder connected to the second reflection unit 3.

[0184] The second rotor 76 may have the same structure as the first rotor 66 .

[0185] The second rotor 76 may include a second motor 76 connected to the second reflecting unit 3 .

[0186] In the fifth example of the vehicle display device, the second rotor 76 may be connected to the second reflection unit 3 to rotate the second reflection unit 3 , and the second lifter 71 may be connected to the second rotor 71 to move the second rotor 71 and the second reflection unit 3 .

[0187] In a variation of the fifth example of the vehicle display device, the second lifter 71 can be connected to the second reflection unit 3 to move the position of the second reflection unit 3, and the second rotor 76 can be connected to the second lifter 71 to rotate the second lifter 71 and the second reflection unit 3.

[0188] The fifth example of the vehicle display device may be similar to the second example of the vehicle display device.

[0189] Fig.13 (a) is a diagram showing a state where the first reflection unit 2 is located at a first position and reflects the projection image emitted from the image generation unit 1 toward the screen. Fig.13 (b) is a diagram in which the first reflecting unit 2 does not reflect the projection image emitted from the image generating unit 1 toward the screen, and the second reflecting unit 3 reflects the projection image emitted from the image generating unit 1 toward the windshield.

[0190] If the first reflection unit 2 is at the first position P1, a first light path (Path 1) that reflects the projection image emitted from the image generation unit 1 toward the screen may be formed.

[0191] If the first reflection unit 2 is at the second position P2, the first light path (Path 1) for reflecting the projection image emitted from the image generation unit 1 toward the screen may not be formed.

[0192] If the first reflection unit 2 is at the second position P2 , it may be a position that does not block the second light path (Path 2 ) of the projection image emitted from the image generation unit 1 and reflected toward the windshield by the second reflection unit 3 .

[0193] If the first reflecting unit 2 is at the second position P2 , the size of the image displayed using the windshield 5 may be the sum of the size of the image displayed on the screen 4 and the size of the image displayed using the windshield 5 when the first reflecting unit 2 is at the second position P2 .

[0194] In the fifth example of the vehicle display device, vehicle information can be provided in the maximum size of the HUD, and entertainment information such as movies and games can be provided.

[0195] On the other hand, a modified example of the fifth example of the vehicle display device may not include the first lifter 61 and the second lifter 71 , but may include the first rotor 66 and the second rotor 76 .

[0196] The modification of the fifth example of the vehicle display device can make the position of the image displayed on the screen 4 variable by using the first rotor 66 and the second rotor 76 , and can also make the position of the image displayed on the windshield 5 variable.

[0197] Fig.141 is a control block diagram showing the vehicle display device of the present embodiment.

[0198] The vehicle may further include an input interface 8 and an MCU 9 (Micro controller unit).

[0199] The input interface 8 may be a button, a switch, a touch pad, or a microphone (not shown) for inputting user voice, etc., provided on the vehicle, or may be a touch screen provided on the screen 4, etc.

[0200] MCU 9 may be a vehicle MCU or a display MCU that communicates with the vehicle MCU. In the case where MCU 9 is a display MCU, MCU 9 may be disposed in housing 7 (see Figure 1 ).

[0201] The MCU 9 may output a control signal to the DMD of the image display unit 1 , or output a control signal to the display device of the image display unit 1 .

[0202] The MCU 9 may output control signals to the lifting motors 62 , 72 and the rotating motors 66 , 76 of the adjuster 6 .

[0203] The above description is merely an illustrative description of the technical concept of the present invention, and a person having ordinary knowledge in the technical field to which the present invention belongs can make various modifications and variations without exceeding the essential characteristics of the present invention.

[0204] Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of ​​the present invention but to explain it, and the scope of the technical idea of ​​the present invention is not limited to these embodiments.

[0205] The protection scope of the present invention should be interpreted by the following claims, and should be interpreted as all technical ideas within the equivalent scope thereof are included in the right scope of the present invention.

Claims

1. A display device for a vehicle, wherein: include: Screen; An image generation unit outputs a projected image; A first reflection unit having a first reflection surface for reflecting the projection image outputted from the image generation unit toward the screen; A second reflecting unit having a second reflecting surface for reflecting the projection image outputted from the image generating unit toward the windshield; The adjuster changes at least one of a position of the first reflecting unit, an angle of the first reflecting unit, a position of the second reflecting unit, and an angle of the second reflecting unit.

2. The vehicle display device according to claim 1, wherein: A distance between the image generating unit and the first reflecting unit is shorter than a distance between the image generating unit and the second reflecting unit.

3. The vehicle display device according to claim 1, wherein: A distance between the windshield and the first reflecting unit is longer than a distance between the windshield and the second reflecting unit.

4. The vehicle display device according to claim 1, wherein: An angle of the first reflection unit is different from an angle of the second reflection unit.

5. The vehicle display device according to claim 1, wherein: The first reflecting unit and the second reflecting unit are inclined in opposite directions.

6. The vehicle display device according to claim 1, wherein: The first reflecting unit and the second reflecting unit are parallel.

7. The vehicle display device according to claim 1, wherein: The adjuster includes a lifter for moving the position of the first reflecting unit.

8. The vehicle display device according to claim 7, wherein: The first reflecting unit is moved to a first position or a second position by the lifter, The first position is a position where the projection image output from the image generation unit is dispersed toward the first reflection unit and the second reflection unit. The second position is a position where the first reflection unit reflects all of the projection image output from the image generation unit toward the screen.

9. The vehicle display device according to claim 8, wherein: The first reflecting unit is configured to be movable to a third position by the lifter, The third position is a position where the projection image output from the image generating unit is not reflected by the first reflecting unit.

10. The vehicle display device according to claim 1, wherein: The adjuster includes a rotor that changes an angle of the first reflecting unit.

11. The vehicle display device according to claim 10, wherein: The first reflection unit is changed to a first angle or a second angle by the rotor, The first angle is an angle at which the first reflection unit reflects the projection image output from the image generation unit toward a first height of the screen. The second angle is an angle at which the first reflection unit reflects the projection image output from the image generation unit toward a second height of the screen. The second height of the screen is higher than the first height of the screen.

12. The vehicle display device according to claim 1, wherein: The adjuster further includes a lifter for moving the position of the second reflecting unit.

13. The vehicle display device according to claim 1, wherein: The adjuster includes a rotor that changes an angle of the second reflecting unit.

14. The vehicle display device according to claim 13, wherein: The second reflection unit is changed to a first angle or a second angle by the rotor, The first angle is an angle at which the projection image output from the image generation unit is reflected toward a first height of the windshield. The second angle is an angle at which the projection image output from the image generation unit is reflected toward a second height of the windshield. The second height of the windshield is lower than the first height of the windshield.

15. The vehicle display device according to claim 1, wherein: Also includes: Input interface, used for user input; The MCU controls the position or angle of at least one of the first reflecting unit and the second reflecting unit according to the input of the input interface.

Images