Display device for vehicle

Abstract

A display device for a vehicle may comprise: a screen; an image generating unit that outputs a projection image; a reflection unit having a first reflection surface that reflects the projected image outputted from the first image generating unit onto the screen; a second reflection unit having a second reflection surface that reflects the projected image outputted from the image generating unit onto a 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

Vehicle display device

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

[0002] For example, displays are placed in clusters and other areas to display various types of information. Meanwhile, vehicles are increasingly equipped with various displays, including AVN (Audio Video Navigation) displays and head-up displays that project images onto the windshield, separate from the cluster, to display driving information and other information.

[0003] U.S. Patent Publication No. US10,298,890 (patent dated May 21, 2019) relates to a vehicle display device, and discloses a cluster display by image projection, wherein the cluster display includes a projector and a reflective mirror that reflects display light generated from the projector onto a screen.

[0004] The present embodiment provides a vehicle display device capable of providing both a screen image and a HUD image using one image generating unit.

[0005] The present embodiment provides a vehicle display device capable of changing the size or position of an image displayed on a screen.

[0006] The present embodiment provides a vehicle display device capable of changing the size or position of a HUD image.

[0007] A vehicle display device according to the present embodiment may include a screen; an image generating unit that outputs a projection image; a first reflection unit having a first reflection surface that reflects the projection image output from the image generating unit onto the screen; a second reflection unit having a second reflection surface that reflects the projection image output from the image generating unit onto a windshield; and an adjuster that changes at least one of a position of the first reflection unit and an angle of the first reflection unit and a position of the second reflection unit and an angle of the second reflection unit.

[0008] The distance between the image generating unit and the first reflecting unit may be shorter than the distance between the image generating unit and the second reflecting unit.

[0009] The distance between the windshield and the first reflective unit may be longer than the distance between the windshield and the second reflective unit.

[0010] The angle of the first reflection unit and the angle of the second reflection unit may be different.

[0011] The first reflection unit and the second reflection unit can be tilted in opposite directions.

[0012] The first reflection unit and the second reflection unit can be parallel.

[0013] The controller may include a lifter that moves the first reflector unit into position.

[0014] The first reflection unit can be moved by the lifter to a first position and a second position, the first position can be a position where the projection image output from the image generating unit is distributed to the first reflection unit and the second reflection unit, and the second position can be a position where the first reflection unit reflects all the projection images output from the image generating unit onto the screen.

[0015] The first reflection unit may be movably arranged to a third position by the lifter, and the third position may be a position where the projection image output from the image generating unit is not reflected by the first reflection unit.

[0016] The regulator may include a rotor that changes the angle of the first reflector unit.

[0017] The first reflector unit can be changed to a first angle or a second angle by the rotor.

[0018] The first angle may be an angle at which the first reflection unit reflects the projection image output from the image generating unit to the first height of the screen.

[0019] The second angle may be an angle at which the first reflection unit reflects the projection image output from the image generating unit to a second height of the screen, and the second height of the screen may be higher than the first height of the screen.

[0020] The controller may further include a lifter for positioning the second reflector unit.

[0021] The controller may include a rotor that changes the angle of the second reflector unit.

[0022] The second reflection unit can be changed to the first angle and the second angle by the rotor,

[0023] The first angle may be an angle at which the projection image output from the image generating unit is reflected to the first height of the wind shield,

[0024] The second angle may be an angle that reflects the projection image output from the image generating unit to a second height of the wind shield, and the second height of the wind shield may be lower than the first height of the wind shield.

[0025] The vehicle display device may further include an input interface for user input; and an MCU for controlling the position or angle of at least one of the first reflection unit and the second reflection unit according to an input of the input interface.

[0026] According to the present embodiment, one image generating unit can generate an image of a screen and an image of a HUD together by a first reflection unit and a second reflection unit.

[0027] Additionally, the controller can change at least one of the position of the first reflection unit and the angle of the first reflection unit and the position of the second reflection unit and the angle of the second reflection unit, thereby varying the size or position of the image displayed on the screen and varying the size or position of the image displayed through the HUD.

[0028] Fig. 1 is a perspective view illustrating a first example of a vehicle display device according to the present embodiment.

[0029] Figure 2 is a side view illustrating a first example of a vehicle display device according to the present embodiment;

[0030] Fig. 3 is a side view showing an example in which the position of the first reflective unit illustrated in Fig. 2 is adjusted.

[0031] FIG. 4 is a diagram illustrating a display formed by a first example of a vehicle display device according to the present embodiment.

[0032] Fig. 5 is a side view illustrating a second example of a vehicle display device according to the present embodiment;

[0033] Fig. 6 is a side view showing an example of adjusting the position of the first reflective unit shown in Fig. 5;

[0034] FIG. 7 is a diagram illustrating a display formed by a second vehicle display device according to the present embodiment.

[0035] Fig. 8 is a side view illustrating a third example of a vehicle display device according to the present embodiment.

[0036] Fig. 9 is a side view showing an example in which the angle of the first reflection unit and the angle of the second reflection unit shown in Fig. 8 are adjusted.

[0037] Fig. 10 is a side view showing a fourth example of a vehicle display device according to the present embodiment.

[0038] Fig. 11 is a side view showing an example of the first reflective unit illustrated in Fig. 10 having its position and angle adjusted;

[0039] Fig. 12 is a side view illustrating a fifth example of a vehicle display device according to the present embodiment.

[0040] FIG. 13 is a side view showing an example in which at least one of the position and angle of the first reflection unit shown in FIG. 12 is adjusted, and at least one of the position and angle of the second reflection unit is adjusted.

[0041] Fig. 14 is a control block diagram of a vehicle display device according to the present embodiment.

[0042] Hereinafter, specific embodiments of the present invention will be described in detail with drawings.

[0043] FIG. 1 is a perspective view illustrating a first example of a vehicle display device according to the present embodiment, FIG. 2 is a side view illustrating a first example of a vehicle display device according to the present embodiment, FIG. 3 is a side view illustrating an example in which the position of the first reflection unit illustrated in FIG. 2 is adjusted, and FIG. 4 is a diagram illustrating a display formed by the first example of a vehicle display device according to the present embodiment.

[0044] A vehicle display device can be installed in a vehicle and can project images onto a screen and a windshield (hereinafter referred to as a windshield) of the vehicle.

[0045] A vehicle display device may include an image generating unit (1), a first reflection unit (2), a second reflection unit (3), and a screen (4).

[0046] A vehicle display device can output a first image to a screen (4) and a second image to a windshield (5) using an image generating unit (1).

[0047] The vehicle display device may be a dual projection display (DPD) capable of projecting two images using an image generating unit (1).

[0048] The screen (4) can form a cluster display of a vehicle together with the image generating unit (1) and the first reflection unit (2). The vehicle display device can display driving status, operation information, etc. through the screen (4).

[0049] The windshield (5) can form a HUD (Head Up Display) together with the image generating unit (1) and the second reflection unit (3). The vehicle display device can display vehicle driving information through the windshield (5).

[0050] The vehicle display device can project a first image onto the screen (4) and a second image onto the windshield (5). The vehicle display device can prevent the image from being projected onto the screen (4) and focus the image onto the windshield (5). The vehicle display device can prevent the image from being projected onto the windshield (5) and focus the image onto the screen (4).

[0051] The picture generation unit (PGU) can output a projection image.

[0052] The image generation unit (1) may include a light output unit for light output.

[0053] The light output unit may include a light source and a digital mirror unit that reflects light output from the light source.

[0054] The light source may include an LED diode or a laser diode.

[0055] A digital mirror unit may include a plurality of digital mirrors. An example of a digital mirror unit may include a digital micromirror device (DMD).

[0056] The image generation unit (1) may further include a display element such as a liquid crystal panel that reflects light output from a light source.

[0057] If the display element is a liquid crystal panel, the liquid crystal panel may have a plurality of pixels for driving the liquid crystal.

[0058] The image generation unit (1) 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.

[0059] The image generation unit (1) may be equipped with a processor, and the processor may include a digital mirror control unit for controlling a digital mirror unit, a light source control unit for controlling a light source, and a panel control unit for controlling a liquid crystal panel.

[0060] The image generation unit (1) can output a projection image in a forward direction or an oblique direction toward the upper front.

[0061] The first reflection unit (2) can be arranged to reflect the projection image output from the image generating unit (1) onto the screen (4). The first reflection unit (2) can be arranged vertically or inclined.

[0062] 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.

[0063] The second reflection unit (3) can be arranged to reflect the projection image output from the image generation unit (1) to the wind shield (5). The second reflection unit (3) can be arranged vertically or inclined.

[0064] The back surface of the second reflection unit (3) can be a reflection surface (31, second reflection surface) that reflects light. The second reflection unit (3) can be a reflection mirror having a first reflection surface (31) formed on the back surface.

[0065] The screen (4) may be a transmissive screen. The screen (4) may include a transmissive medium, and the screen (4) may include an optical sheet having a transmissivity. The screen (4) may include a variable transmissive portion having a variable transmissivity, and the variable transmissive portion may include an electrically transmissive variable material such as PDLC (Polymer Dispersed Liquid Crystal).

[0066] The windshield (5) may be a reflective screen and may include a reflective medium.

[0067] The driver (i.e., the eye box) can recognize the image formed on the screen (4) and the image formed in front of the windshield (2) through the windshield (5).

[0068] The angle of the first reflection unit (2) and the angle of the second reflection unit (3) may be different.

[0069] The first reflection unit (2) and the second reflection unit (3) can be tilted in opposite directions.

[0070] The reflective surface (21) of the first reflective unit (2) may face the lower rear side, and the reflective surface (31) of the second reflective unit (3) may face the upper rear side.

[0071] A part of the first reflection unit (2) may be positioned between the image generating unit (1) and the second reflection unit (3).

[0072] The distance (L1, hereinafter referred to as the first distance) between the image generating unit (1) and the first reflection unit (2) may be shorter than the distance (L2, hereinafter referred to as the second distance) between the image generating unit (1) and the second reflection unit (3).

[0073] The first distance (L1) may be the shortest distance between the image generating unit (1) and the first reflection unit (2).

[0074] The second distance (L2) may be the shortest distance between the image generating unit (1) and the second reflection unit (3).

[0075] The distance (L3, hereinafter referred to as the third distance) between the wind shield (5) and the first reflection unit (2) may be longer than the distance (L4, hereinafter referred to as the fourth distance) between the wind shield (5) and the second reflection unit (3).

[0076] The third distance (L3) may be the shortest distance between the wind shield (5) and the first reflective unit (2).

[0077] The fourth distance (P4) may be the shortest distance between the wind shield (5) and the second reflective unit (3).

[0078] When the first reflection unit (2) is at the first position (P1) as shown in (a) of Fig. 3, the third distance (L3) and the fourth distance (L4) may be the same or similar. When the first reflection unit (2) is at the second position (P2) as shown in (b) of Fig. 3, the third distance (L3) may be longer than the fourth distance (L4).

[0079] A vehicle display device can form a first optical path (Path 1) connecting an image generating unit (1), a first reflective unit (2), and a screen (4), and a second optical path (Path 2) connecting an image generating unit (1), a second reflective unit (3), and a windshield (5).

[0080] The vehicle display device can vary at least one of a first optical path (Path 1) and a second optical path (Path 2). The vehicle display device can include a controller (6). The controller (6) can adjust the first optical path (Path 1) or the second optical path (Path 2).

[0081] The controller (6) can change at least one of the position of the first reflection unit (2), the angle of the first reflection unit (2), the position of the second reflection unit (3), and the angle of the second reflection unit (3).

[0082] The controller (6) can change the position of the first reflection unit (2). The controller (6) can include a lifter (61, see FIG. 2) that moves the position of the first reflection unit (2).

[0083] An example of a lifter (61) may include a lifting motor (62) and at least one power transmission member (63)(64) that transmits the driving force of the lifting motor (62) to the first reflection unit (2). An example of the power transmission member (63)(64) may include a pinion (63) installed on the rotational shaft of the lifting motor (62) and a rack (64) formed on the first reflection unit (2) and meshed with the pinion (63). Another example of the lifter (61) may be a linear motor or cylinder connected to the first reflection unit (2).

[0084] The lifter (61) is not limited to the type of the first reflection unit (2), and can be applied to any configuration that can be moved.

[0085] The lifter (61) can change the position of the first reflection unit (2) by moving the first reflection unit (2), and the position of the first reflection surface (21) formed on the first reflection unit (2) can be changed.

[0086] The regulator (6) may further include a rotor (66, see FIG. 2) that changes the angle of the first reflection unit (2).

[0087] The rotor (66) may be a rotational driving source that rotates the first reflection unit (2). The rotor (66) may include a rotational motor connected to the first reflection unit (2). Hereinafter, the rotor and the rotational motor are designated by the reference numeral 66.

[0088] An example of a rotor (66) may include a rotary motor having a rotary shaft connected to the first reflection unit (2). Another example of a rotor (66) may include a motor, a reducer having an input shaft connected to the rotary shaft of the motor, and an output shaft connected to the first reflection unit (2). The rotor (66) may be applied to any type of structure capable of rotating the first reflection unit (2), without limitation thereto.

[0089] The regulator (6) may include only one of the lifter (61) and the rotor (66), or may include both the lifter (61) and the rotor (66).

[0090] When the controller (6) includes both a lifter (61) and a rotor (66), an example of the controller (6) is that the rotor (66) is connected to the first reflection unit (2) to rotate the first reflection unit (2), and the lifter (61) is connected to the rotor (66) to move the rotor (66) and the first reflection unit (2) in position.

[0091] Another example of a controller (6) is a lifter (61) connected to a first reflection unit (2) to move the first reflection unit (2) and a rotor (66) connected to the lifter (61) to rotate the lifter (61) and the first reflection unit (2).

[0092] Figure 3 (a) is a diagram when the first reflection unit is in the first position, and Figure 3 (b) is a diagram when the first reflection unit is in the second position.

[0093] Figure 4 (a) is a diagram when an image is displayed on each of the screen and the windshield, and Figure 4 (b) is a diagram when an image is displayed on the screen and no image is displayed on the windshield.

[0094] The first reflection unit (2) can be moved to a first position (P1) and a second position (P2) by a lifter (61).

[0095] The first position (P1) may be a position where the projection image output from the image generation unit (1) is distributed to the first reflection unit (2) and the second reflection unit (3), as shown in (a) of FIG. 3.

[0096] The first position (P1) may be a position when the first reflection unit (2) is positioned in the first optical path (Path 1). The first position (P1) may be a position where the first reflection unit (2) does not block the second optical path (Path 2).

[0097] The first reflection unit (2) can be arranged to move to a first position (P1) other than the second optical path (Path 2) and a second position (P2) located in the second optical path (Path 2).

[0098] When the first reflection unit (2) is at the first position (P1), the projection 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), and the first reflection unit (2) can reflect a part (the first image) of the projection image emitted from the image generating device (1) to the screen (4), and the second reflection unit (3) can reflect the remainder (the second image) of the projection image emitted from the image generating device (1) to the wind shield (5).

[0099] 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).

[0100] The second position (P2) may be a position where the first reflection unit (2) reflects all of the projection images output from the image generation unit (1) onto the screen (4).

[0101] The second position (P2) may be a position where the first reflection unit (2) can block the second optical path (Path 2), as in (b) of Fig. 3.

[0102] When the first reflection unit (2) is at the second position (P2), the projection image emitted from the image generating device (1) can be reflected onto the screen (4) by the first reflection surface (21) of the first reflection unit (2), as shown in (b) of FIG. 3.

[0103] When the first reflection unit (2) is at the second position (P2), the second reflection unit (3) may not reflect the projection image emitted from the image generating device (1) to the wind shield (5).

[0104] When the first reflection unit (2) is at the second position (P2), the area of ​​the region reflecting the projection image among 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).

[0105] The passenger can check the image displayed on the screen (4), as shown in (b) of Fig. 4.

[0106] The first reflective surface (21) of the first reflective unit (2) can have its angle changed by the rotor (66).

[0107] When the rotor (66) rotates the first reflection unit (2), the position (i.e., height) of the image displayed on the screen (4) can be changed.

[0108] The vehicle display device may include a housing (7, see FIG. 1).

[0109] The housing (7) can be placed below the wind shield (5). The housing (7) can be spaced apart from the wind shield (5) in the vertical direction.

[0110] A space can be formed inside the housing (7).

[0111] The image display unit (1), the first reflection unit (2), the second reflection unit (3), and the controller (6) can be accommodated in the space of the housing (7).

[0112] An opening can be formed on the back surface of the housing (7), and a screen (4) can be placed on the back surface of the housing (7).

[0113] FIG. 5 is a side view illustrating a second example of a vehicle display device according to the present embodiment, FIG. 6 is a side view illustrating an example of adjusting the position of the first reflective unit illustrated in FIG. 5, and FIG. 7 is a view illustrating a display formed by a second example of a vehicle display device according to the present embodiment.

[0114] A second example of a vehicle display device may include a controller (6), and the controller (6) 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).

[0115] The image display unit (1), the first reflection unit (2) and the second reflection unit (3) may each be the same as the second example of the vehicle display device.

[0116] The lifter (61) may be identical or similar to the lifter (61) of the first example of the vehicle display device, and to avoid duplicate description, the same symbol is used, and a detailed description thereof is omitted.

[0117] The rotor (66) may be identical or similar to the rotor (66) of the first example of the vehicle display device, and to avoid duplicate description, the same reference numerals are used, and a detailed description thereof is omitted.

[0118] Figure 6 (a) is a diagram when the first reflection unit is in the first position, and Figure 6 (b) is a diagram when the first reflection unit is in the third position.

[0119] Figure 7 (a) is a diagram when an image is displayed on each of the screen and the windshield, and Figure 7 (b) is a diagram when an image is displayed on the windshield and not on the screen.

[0120] When the first reflection unit (2) is positioned at the first position (P1), the projection image output from the image generation unit (1) can be distributed and directed toward the screen (4) and the wind shield (5), as shown in (a) of Fig. 6.

[0121] When the first reflection 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), as shown in (a) of Fig. 7.

[0122] Since the first reflection unit (2) is positioned at the first position (P1), it is the same as the first example of the vehicle display device, and thus, in order to avoid duplicate description, a detailed description thereof is omitted.

[0123] The first reflection unit (2) can be arranged to be movable to the third position (P3) by the lifter (61).

[0124] 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 reflection unit (2), and the third position (P3) may be a position where the first reflection 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).

[0125] The third position (P3) may be the position of the first reflection unit (1) where the second reflection unit (3) forms the second optical path (Path 2).

[0126] The projection image emitted from the image generation unit (1) can be directed toward the second reflection surface (31) of the second reflection unit (3), as shown in (b) of Fig. 6, and can be reflected by the wind shield (5).

[0127] When the first reflection unit (2) is in the third position (P3), the passenger can only see the image (WI) displayed on the windshield (5).

[0128] When the first reflection unit (2) is at the third position (P3), the size of the area reflecting the projection image among the second reflection units (3) may be larger than when the first reflection unit (2) is at the first position (P1).

[0129] When the first reflection unit (2) is at the third position (P3), the size of the area where the projection image is displayed through the wind shield (5) may be equal to the sum of the area where the screen (4) displays the projection image when the first reflection unit (2) is at the first position (P1) and the area where the projection image is displayed through the wind shield (5).

[0130] The controller (6) can also change the angle of the first reflection unit (2) by the rotor (66) when the first reflection unit (2) is changed to the third position (P3).

[0131] Meanwhile, the controller (6) may further include a rotor (76) that changes the angle of the second reflection unit (3). The rotor (76) that changes the angle of the second reflection unit (3) may be a rotational driving source that rotates the second reflection unit (3) and may include a rotational motor connected to the second reflection unit (3). Hereinafter, the rotor and the rotational motor are indicated by the reference numeral 76.

[0132] Hereinafter, the rotor (76) that changes the angle of the second reflection unit (3) will be referred to as the second rotor.

[0133] The second rotor (76) can change the angle of the second reflection unit (3) when the first reflection unit (2) is changed to the third position (P3), and the size of the area of ​​the wind shield (5) where the projection image is reflected can be varied.

[0134] The second example of a vehicle display device can vary the size of an image (SI) displayed through a screen (4) and the size of an image (WI) displayed through a windshield (5), and can enlarge the size of an image (SI) displayed through a screen (4) or enlarge the size of an image (WI) displayed through a windshield (5) according to the request of a passenger.

[0135] The first reflection unit (2) being moved to the third position (P3) may mean that the entire area where the projection image is displayed is used as a HUD, and can provide large-screen information such as AR-HUD while the vehicle is in motion. Meanwhile, in autonomous driving mode or when the vehicle is not in motion, the HUD can provide large-screen entertainment (video / movie) information.

[0136] FIG. 8 is a side view illustrating a third example of a vehicle display device according to the present embodiment, and FIG. 9 is a side view illustrating an example in which the angle of the first reflection unit and the angle of the second reflection unit illustrated in FIG. 8 are adjusted.

[0137] The third example of the vehicle display device controller (6) may include a rotor (66) that changes the angle of the first reflection unit (2) and a rotor (76) that changes the angle of the second reflection unit (3).

[0138] A third example of a vehicle display device can vary the height of an image displayed on a screen (4) and the height of an image displayed through a windshield (5) by changing the angle of the first reflection unit (2) and the angle of the second reflection unit (3).

[0139] Fig. 9 (a) is a diagram when the height of the image displayed on the screen is low and the height of the image displayed through the windshield is high, and 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 through the windshield is low.

[0140] Hereinafter, the rotor (66) that changes the angle of the first reflection unit (2) is referred to as the first rotor, and the rotor (76) that changes the angle of the second reflection unit (3) is referred to as the second rotor.

[0141] The first reflection unit (2) can be changed to a first angle (θ1) and a second angle (θ2) by the first rotor (66), and the first angle (θ1) can be an angle that reflects the projection image output from the image generation unit (1) to a first height (H1) of the screen (4), and the second angle (θ2) can be an angle that reflects the projection image output from the image generation unit (1) to a second height (H2) of the screen (4).

[0142] The second height (H2) of the screen (4) may be higher than the first height (H1) of the screen (4).

[0143] The third example of a vehicle display device can adjust the height (H1, H2) of the image displayed on the screen (4) to the eye level of the passenger by the first rotor (66).

[0144] That is, the position of the displayed image displayed through the screen (4) can be changed.

[0145] 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 that reflects the projection image output from the image generation unit (1) to the first height (H3) of the wind shield (5), and the second angle (θ4) may be an angle that reflects the projection image output from the image generation unit (1) to the second height (H4) of the wind shield (5).

[0146] The second height (H4) of the wind shield (5) may be lower than the first height (H3) of the wind shield (5).

[0147] The third example of a vehicle display device can change the position, i.e., the height (H3, H4), of the image displayed through the windshield (5) by the second rotor (76).

[0148] That is, the position (height) of the image displayed through the HUD can be changed.

[0149] A third example of a vehicle display device may be provided with a first rotor (66) that changes the angle of the first reflection unit (2) and a second rotor (76) that changes the angle of the second reflection unit (3).

[0150] A first modified example of the third example of the vehicle display device may be an example in which only the first rotor (66) among the first rotor (66) and the second rotor (76) is provided.

[0151] A second modified example of the third example of the vehicle display device may be an example in which only the second rotor (76) among the first rotor (66) and the second rotor (76) is provided.

[0152] FIG. 10 is a side view illustrating a fourth example of a vehicle display device according to the present embodiment, and FIG. 11 is a side view illustrating an example in which the position and angle of the first reflection unit illustrated in FIG. 10 are adjusted.

[0153] The first reflection unit (2) and the second reflection unit (3) can be tilted in the same direction.

[0154] The first reflective surface (21) of the first reflective unit (2) may face toward the rear upper side, and the first reflective surface (31) of the second reflective unit (3) may face toward the rear upper side.

[0155] The first reflection unit (2) and the second reflection unit (3) can be parallel.

[0156] The height of the first reflection unit (2) may be lower than the height of the second reflection unit (3).

[0157] Figure 11 (a) is a diagram showing when an image is displayed on each of the screen and the windshield, and Figure 11 (b) is a diagram showing when an image is displayed on the screen.

[0158] A fourth example of a vehicle display device may include a controller (6) that includes 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).

[0159] A fourth example of a vehicle display device is a device in which a rotor (66) is connected to a first reflection unit (2) to rotate the first reflection unit (2), and a lifter (61) is connected to the rotor (66) to move the rotor (66) and the first reflection unit (2) in position.

[0160] When the motor of the lifter (61) is driven, the position of the first reflection unit (2) can be changed.

[0161] The lifter (61) can lower the first reflection unit (2) to a first position (P1) where the first reflection unit (2) forms a first optical path (Path 1) and the first reflection unit (3) forms a second optical path (Path 2).

[0162] The lifter (61) can raise the first reflection unit (2) to a second position (P1) where the first reflection unit (2) forms a first light path (Path 1) and the first reflection unit (3) blocks a second light path (Path 2).

[0163] When the rotation motor of the rotor (66) is driven, the angle of the first reflection unit (2) can be changed.

[0164] The rotor (66) can rotate the first reflection unit (2) at a first angle (θ1) such that the first reflection unit (2) forms a first optical path (Path 1) while not blocking a second optical path (Path 2).

[0165] The rotor (66) can rotate the first reflection unit (2) at a second angle (θ2) such that the first reflection unit (2) forms a first optical path (Path 1) while blocking a second optical path (Path 2).

[0166] When the motor of the lifter (61) is driven and the rotation motor of the rotor (66) is driven, all projection images output from the image generating device (1) can be reflected onto the screen (4) by the first reflection unit (2). The size of the image displayed on the screen (4) can be expanded.

[0167] When the first reflection unit (2) is at the second position or the second angle, the size of the image displayed by the screen (4) may be equal to the sum of the area where the screen (4) displays the projection image when the first reflection unit (2) is at the first position or the first angle and the area where the projection image is displayed through the wind shield (5).

[0168] A fourth example of a vehicle display device is a modified example in which a lifter (61) is connected to a first reflection unit (2) to move the first reflection unit (2) in position, and a rotor (66) is connected to the lifter (61) to rotate the lifter (61) and the first reflection unit (2).

[0169] The fourth example of a vehicle display device according to the present embodiment is similar to the first example of a vehicle display device in that the position of the first reflection unit (2) or the angle of the first reflection unit (2) can be changed, and the size of the image displayed through the screen (3) can be varied.

[0170] FIG. 12 is a side view illustrating a fifth example of a vehicle display device according to the present embodiment, and FIG. 13 is a side view illustrating an example in which at least one of the position and angle of the first reflection unit illustrated in FIG. 12 is adjusted, and at least one of the position and angle of the second reflection unit is adjusted.

[0171] The first reflection unit (2) and the second reflection unit (3) can be tilted in the same direction.

[0172] The reflective surface (21) of the first reflective unit (2) may face toward the rear upper side, and the reflective surface (31) of the second reflective unit (3) may face toward the rear upper side.

[0173] The first reflection unit (2) and the second reflection unit (3) can be parallel.

[0174] The height of the first reflection unit (2) may be lower than the height of the second reflection unit (3).

[0175] A fifth example of a vehicle display device may include a controller (6) that includes 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).

[0176] The first reflection unit (2) may be moved in position and the angle of the first reflection unit (2) may be changed in the same manner as or similar to the fourth example of the vehicle display device.

[0177] A fifth example of a vehicle display device may include a controller (6) that includes a lifter (71) that moves the position of the second reflection unit (3) and a rotor (76) that changes the angle of the second reflection unit (3).

[0178] Hereinafter, the lifter (61) that moves the position of the first reflection unit (2) is referred to as the first lifter (61), the rotor (66) that changes the angle of the first reflection unit (2) is referred to as the first rotor (66), the lifter (71) that moves the position of the second reflection unit (3) is referred to as the second lifter (71), and the rotor (76) that changes the angle of the second reflection unit (3) is referred to as the second rotor (76).

[0179] The second lifter (71) may have the same structure as the first lifter (61).

[0180] The second lifter (71) may include a lifting motor (72) and at least one power transmission member (73)(74) that transmits the driving force of the lifting motor (72) to the second reflection unit (3). Examples of the power transmission member (73)(74) may include a pinion (73) installed on the rotational shaft of the lifting motor (72) and a rack (74) formed on the second reflection unit (3) and meshed with the pinion (73). Another example of the second lifter (71) may be a linear motor or cylinder connected to the second reflection unit (3).

[0181] The second rotor (76) may have the same structure as the first rotor (66).

[0182] The second rotor (76) may include a second motor (76) connected to the second reflection unit (3).

[0183] In the fifth example of the vehicle display device, the second rotor (76) is connected to the second reflection unit (3) to rotate the second reflection unit (3), and the second lifter (71) is connected to the second rotor (71) to move the second rotor (71) and the second reflection unit (3) in position.

[0184] A fifth example of a vehicle display device is a modified example in which a second lifter (71) is connected to a second reflection unit (3) to move the second reflection unit (3) and a second rotor (76) is connected to the second lifter (71) to rotate the second lifter (71) and the second reflection unit (3).

[0185] The fifth example of the vehicle display device may be similar to the second example of the vehicle display device.

[0186] Fig. 13 (a) is a diagram when the first reflection unit (2) is positioned at a first position to reflect the projection image emitted from the image generation unit (1) onto a screen, and Fig. 13 (b) is a diagram when the first reflection unit (2) does not reflect the projection image emitted from the image generation unit (1) onto a screen, and the second reflection unit 3) reflects the projection image emitted from the image generation unit (1) onto a wind shield.

[0187] The first reflection unit (2) can form a first optical path (Path 1) that reflects the projection image emitted from the image generation unit (1) to the screen when at the first position (P1).

[0188] When the first reflection unit (2) is at the second position (P2), it may not form a first optical path (Path 1) that reflects the projection image emitted from the image generation unit (1) onto the screen.

[0189] The first reflection unit (2) may be at a position where the second optical path (Path 2) along which the projection image emitted from the image generation unit (1) is reflected to the wind shield by the second reflection unit (3) may not be blocked when at the second position (P2).

[0190] When the first reflection unit (2) is at the second position (P2), the size of the image displayed through the wind shield (5) can be the sum of the size of the image displayed on the screen (4) when the first reflection unit (2) is at the second position (P2) and the size of the image displayed through the wind shield (5).

[0191] The fifth example of a vehicle display device can provide vehicle information in the largest size of a HUD and can provide entertainment information such as movies or games.

[0192] Meanwhile, a modified example of the fifth example of the vehicle display device may include a first rotor (66) and a second rotor (76) without including a first lifter (61) and a second lifter (71).

[0193] A fifth example of a vehicle display device can vary the position of an image displayed on a screen (4) by the first rotor (66) and the second rotor (76), and can vary the position of an image displayed through a windshield (5).

[0194] Fig. 14 is a control block diagram of a vehicle display device according to the present embodiment.

[0195] The vehicle may further include an input interface (8) and an MCU (9, Micro controller unit).

[0196] The input interface (8) may be a button, switch, pad, microphone (not shown) for user voice input installed in the vehicle, or a touch screen placed on the screen (4).

[0197] The MCU (9) may be a vehicle MCU or a display MCU that communicates with the vehicle MCU. If the MCU (9) is a display MCU, the MCU (9) may be placed in a housing (7, see Fig. 1).

[0198] The MCU (9) can output a control signal to the DMD of the image display unit (1) or output a control signal to the display element of the image display unit (1).

[0199] The MCU (9) can output a control signal to the lifting motor (62) (72) and the rotation motor (66) (76) of the controller (6).

[0200] The above description is merely an example of the technical idea of ​​the present invention, and those skilled in the art will appreciate that various modifications and variations can be made without departing from the essential characteristics of the present invention.

[0201] Accordingly, 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 by these embodiments.

[0202] The scope of protection of the present invention should be interpreted by the claims below, and all technical ideas within the scope equivalent thereto should be interpreted as being included in the scope of the rights of the present invention.

Claims

1. Screen; An image generating unit that outputs a projection image; A first reflection unit having a first reflection surface that reflects a projection image output from the image generating unit onto the screen; A second reflection unit having a second reflection surface that reflects the projection image output from the image generating unit onto a wind shield; A vehicle display device comprising an adjuster that changes at least one of the position of the first reflective unit and the angle of the first reflective unit and the position of the second reflective unit and the angle of the second reflective unit.

2. In paragraph 1, The distance between the image generating unit and the first reflection unit is A vehicle display device having a shorter distance between the image generating unit and the second reflecting unit.

3. In paragraph 1, The distance between the above wind shield and the first reflective unit is A vehicle display device having a distance longer than the distance between the windshield and the second reflective unit.

4. In paragraph 1, A vehicle display device wherein the angle of the first reflective unit and the angle of the second reflective unit are different.

5. In paragraph 1, A vehicle display device wherein the first reflective unit and the second reflective unit are inclined in opposite directions.

6. In paragraph 1, The above first reflection unit and second reflection unit are a parallel vehicle display device.

7. In paragraph 1, A vehicle display device including a lifter that moves the position of the first reflective unit.

8. In paragraph 7, The above first reflection unit is moved to the first position or the second position by the lifter, The first position is a position where the projection image output from the image generating unit is distributed to the first reflection unit and the second reflection unit, A vehicle display device wherein the second position is a position where the first reflection unit reflects all of the projection images output from the image generating unit onto the screen.

9. In paragraph 8, The above first reflection unit is arranged to be movable to a third position by the lifter, A vehicle display device wherein the third position is a position where the projection image output from the image generating unit is not reflected by the first reflection unit.

10. In paragraph 1, A vehicle display device, wherein the controller includes a rotor that changes the angle of the first reflective unit.

11. In paragraph 10, The above 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 generating unit to the 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 generating unit to the second height of the screen, A vehicle display device wherein the second height of the above screen is higher than the first height of the above screen.

12. In paragraph 1, A vehicle display device, wherein the controller further includes a lifter for moving the second reflective unit.

13. In paragraph 1, A vehicle display device wherein the controller includes a rotor that changes the angle of the second reflective unit.

14. In paragraph 13, The second reflective unit is changed to a first angle or a second angle by the rotor, The first angle is an angle that reflects the projection image output from the image generating unit to the first height of the wind shield, The second angle is an angle that reflects the projection image output from the image generating unit to the second height of the wind shield, A vehicle display device wherein the second height of the windshield is lower than the first height of the windshield.

15. In paragraph 1, Input interface through which the user inputs; A vehicle display device further comprising an MCU that controls the position or angle of at least one of the first reflection unit and the second reflection unit according to an input of the input interface.

Images