Display device for vehicle

Abstract

The present disclosure relates to a display device for a vehicle. The display device for a vehicle according to an embodiment of the present disclosure includes: an image generation device which includes a light output device and outputs a projection image; a first mirror for reflecting a first projection image which is a part of the projection image from the image generation device; a screen having one surface onto which the first projection image reflected from the first mirror is projected; a second mirror for reflecting a second projection image, which is another part of the projection image from the image generation device, to a windshield; and a first actuator for changing the position or angle of the first mirror, wherein the size of the first projection image projected onto the screen is changed on the basis of the change of the position or angle of the first mirror. Accordingly, the size of a cluster display can be changed while multiple displays are integratedly implemented using one image generation device.

Description

Vehicle display device

[0001] The present disclosure relates to a vehicle display device, and more particularly, to a vehicle display device capable of varying the size of a cluster display while integrating and implementing a plurality of displays using a single image generating device.

[0002] A vehicle is a device that allows the user to move in the desired direction. A representative example is an automobile.

[0003] Meanwhile, for the convenience of vehicle users, vehicle display devices are being installed inside vehicles.

[0004] For example, displays are placed in clusters and other areas to display various types of information. Meanwhile, to display vehicle driving information and other information, vehicles are increasingly equipped with various displays, including a Center Information Display (CID) display and a head-up display that projects images onto the windshield, separate from the cluster display.

[0005] As such, as various displays are placed within vehicles, research is being conducted on ways to integrate and operate them.

[0006] Meanwhile, prior art document 1, Japanese Patent Application Laid-Open No. 11-59224, relates to a front window display device, and discloses controlling the brightness of a window display device (HUD) using data from a light sensor.

[0007] However, according to prior art document 1, only contents regarding a window display device are disclosed, so there is a disadvantage in that integrated operation of various displays is difficult.

[0008] Meanwhile, two prior art documents, U.S. Patent Publication No. US10298890, relate to a vehicle display device and disclose a cluster display using image projection.

[0009] However, according to prior art 2, only the contents for cluster displays are disclosed, so there is a disadvantage in that integrated operation of various displays is difficult.

[0010] The problem of the present disclosure is to provide a vehicle display device capable of varying the size of a cluster display while integrating and implementing multiple displays using a single image generating device.

[0011] Meanwhile, another problem of the present disclosure is to provide a vehicle display device capable of varying the size of a head-up display while integrating and implementing multiple displays using a single image generating device.

[0012] According to one embodiment of the present disclosure for achieving the above-described problem, a vehicle display device includes an image generating device that outputs a projection image, a first mirror that reflects a first projection image, which is a part of the projection image from the image generating device, a screen on which the first projection image reflected from the first mirror is projected onto one surface, a second mirror that reflects a second projection image, which is another part of the projection image from the image generating device, onto a windshield, and a first actuator that changes a position or angle of the first mirror, and the size of the first projection image projected onto the screen changes based on the change in the position or angle of the first mirror.

[0013] Meanwhile, the size of the second projection image reflected on the windshield can be varied based on the variation of the position or angle of the first mirror.

[0014] Meanwhile, a vehicle display device according to one embodiment of the present disclosure further includes a signal processing device that controls a first actuator, and the signal processing device can control the size of a first projection image projected on a screen to be varied based on variation in the position or angle of the first mirror.

[0015] Meanwhile, the signal processing device can control the size of the second projection image reflected on the windshield to vary based on the variation of the position or angle of the first mirror.

[0016] Meanwhile, the signal processing device can control the size of the first projection image projected on the screen to be reduced by increasing the height of the lower end of the first mirror when the height of the lower end of the first mirror is higher than the height of the lower end of the second mirror.

[0017] Meanwhile, the signal processing device can control the size of the first projection image projected on the screen to increase by reducing the height of the lower end of the first mirror when the height of the lower end of the first mirror is higher than the height of the lower end of the second mirror.

[0018] Meanwhile, the signal processing device can control, in the multiple display mode, a first projection image to be displayed on the screen and a second projection image to be projected and reflected on the windshield, and, in the cluster single display mode, can control, in the cluster single display mode, a first projection image to be displayed on the screen and a second projection image to not be projected on the windshield.

[0019] Meanwhile, in the multiple display mode, the size of the area where the first projection image is incident on the first mirror may be larger than the size of the area where the first projection image is incident on the first mirror in the cluster-only display mode.

[0020] Meanwhile, the signal processing device can control, in the multiple display mode, a first projection image to be displayed on the screen and a second projection image to be projected and reflected on the windshield, and in the head-up single display mode, the first projection image can be controlled not to be projected on the screen and a second projection image can be projected and reflected on the windshield.

[0021] Meanwhile, in the multiple display mode, the size of the area where the second projection image is incident on the second mirror may be larger than the size of the area where the second projection image is incident on the second mirror in the head-up only display mode.

[0022] Meanwhile, a vehicle display device according to one embodiment of the present disclosure further includes a second actuator for adjusting the height or angle of the screen, and the signal processing device can control the height of the screen to be adjusted.

[0023] Meanwhile, a vehicle display device according to one embodiment of the present disclosure further includes a third actuator for adjusting the height or angle of the second mirror, and the signal processing device can control the height or angle of the first mirror or the second mirror to be adjusted in response to the height adjustment of the screen.

[0024] Meanwhile, the signal processing device can control the size of the first projection image projected on the screen to be reduced by reducing the height of the lower end of the first mirror when the height of the lower end of the first mirror is lower than the height of the lower end of the second mirror.

[0025] Meanwhile, the signal processing device can control the size of the first projection image projected on the screen to increase by increasing the height of the lower end of the first mirror when the height of the lower end of the first mirror is lower than the height of the lower end of the second mirror.

[0026] According to another embodiment of the present disclosure, a vehicle display device includes an optical output device, an image generating device that outputs a projected image, a first mirror that reflects a first projected image, which is a part of the projected image from the image generating device, a screen on which the first projected image reflected from the first mirror is projected on one surface, a second mirror that reflects a second projected image, which is another part of the projected image from the image generating device, onto a windshield, and a first actuator that changes a position or angle of the first mirror, and based on the change in the position or angle of the first mirror, the size of the first projected image projected onto the screen or the size of the second projected image reflected onto the windshield is changed.

[0027] Meanwhile, a vehicle display device according to another embodiment of the present disclosure further includes a signal processing device that controls a first actuator, and the signal processing device can control the size of a first projection image projected on a screen or a size of a second projection image reflected on a windshield to be varied based on variation in the position or angle of the first mirror.

[0028] Meanwhile, the signal processing device can control the size of the first projection image projected on the screen or the size of the second projection image reflected on the windshield to be varied by varying the height of the lower end of the first mirror.

[0029] Meanwhile, the signal processing device can control the screen to display only the first projection image and not project the second projection image onto the windshield.

[0030] Meanwhile, the signal processing device can control the display of only the second projection image on the windshield and the first projection image not to be displayed on the screen.

[0031] According to one embodiment of the present disclosure, a vehicle display device includes an optical output device, an image generating device that outputs a projected image, a first mirror that reflects a first projected image, which is a portion of the projected image from the image generating device, a screen on which the first projected image reflected from the first mirror is projected onto one surface, a second mirror that reflects a second projected image, which is another portion of the projected image from the image generating device, onto a windshield, and a first actuator that changes a position or angle of the first mirror, and based on the change in the position or angle of the first mirror, the size of the first projected image projected onto the screen is changed. Accordingly, it is possible to change the size of a cluster display while integrating and implementing a plurality of displays using a single image generating device.

[0032] Meanwhile, the size of the second projection image reflected on the windshield can be varied based on the variation in the position or angle of the first mirror. Accordingly, the size of the head-up display can be varied while integrating multiple displays using a single image generating device.

[0033] Meanwhile, a vehicle display device according to one embodiment of the present disclosure further includes a signal processing device that controls a first actuator, and the signal processing device can control the size of a first projection image projected onto a screen to be varied based on variations in the position or angle of the first mirror. Accordingly, it is possible to vary the size of a cluster display while integrating and implementing multiple displays using a single image generating device.

[0034] Meanwhile, the signal processing device can control the size of the second projection image reflected on the windshield to vary based on variations in the position or angle of the first mirror. Accordingly, it is possible to vary the size of the head-up display while integrating multiple displays using a single image generating device.

[0035] Meanwhile, the signal processing device can control the size of the first projection image projected onto the screen to be reduced by increasing the height of the lower portion of the first mirror when the height of the lower portion of the first mirror is higher than the height of the lower portion of the second mirror. Accordingly, it is possible to vary the size of the cluster display while integrating multiple displays using a single image generating device.

[0036] Meanwhile, the signal processing device can control the size of the first projection image projected onto the screen to increase by reducing the height of the lower portion of the first mirror when the height of the lower portion of the first mirror is higher than the height of the lower portion of the second mirror. Accordingly, it is possible to vary the size of the cluster display while integrating multiple displays using a single image generating device.

[0037] Meanwhile, the signal processing device can control, in the multiple display mode, a first projection image to be displayed on the screen and a second projection image to be projected and reflected on the windshield, and, in the cluster-only display mode, can control, in the screen, a first projection image to be displayed and a second projection image to not be projected on the windshield. Accordingly, it is possible to implement multiple displays integratedly using a single image generating device while varying the size of the head-up display.

[0038] Meanwhile, in multiple display mode, the size of the area where the first projection image is incident on the first mirror may be larger than the size of the area where the first projection image is incident on the first mirror in cluster-only display mode. Accordingly, it is possible to vary the size of the cluster display while integrating multiple displays using a single image generating device.

[0039] Meanwhile, the signal processing device can control, in the multiple display mode, a first projection image to be displayed on the screen and a second projection image to be projected and reflected on the windshield, and in the head-up only display mode, the first projection image is not projected on the screen and a second projection image is projected and reflected on the windshield. Accordingly, it is possible to implement multiple displays integratedly using a single image generating device while varying the size of the head-up display.

[0040] Meanwhile, in multiple display mode, the size of the area where the second projection image is incident on the second mirror may be larger than the size of the area where the second projection image is incident on the second mirror in head-up display mode. Accordingly, it is possible to vary the size of the head-up display while integrating multiple displays using a single image generating device.

[0041] Meanwhile, a vehicle display device according to one embodiment of the present disclosure further includes a second actuator for adjusting the height or angle of the screen, and the signal processing device can control the height of the screen to be adjusted. Accordingly, it is possible to vary the height of the cluster display while integrating multiple displays using a single image generating device.

[0042] Meanwhile, a vehicle display device according to one embodiment of the present disclosure further includes a third actuator for adjusting the height or angle of the second mirror, and the signal processing device can control the height or angle of the first mirror or the second mirror to be adjusted in response to the height adjustment of the screen. Accordingly, it is possible to vary the height of the cluster display while integrating multiple displays using a single image generating device.

[0043] Meanwhile, the signal processing device can control the size of the first projection image projected onto the screen to be reduced by reducing the height of the lower portion of the first mirror when the height of the lower portion of the first mirror is lower than the height of the lower portion of the second mirror. Accordingly, it is possible to vary the size of the cluster display while integrating multiple displays using a single image generating device.

[0044] Meanwhile, the signal processing device can control the size of the first projection image projected onto the screen to increase by increasing the height of the lower portion of the first mirror when the height of the lower portion of the first mirror is lower than the height of the lower portion of the second mirror. Accordingly, it is possible to vary the size of the cluster display while integrating multiple displays using a single image generating device.

[0045] According to another embodiment of the present disclosure, a vehicle display device includes an optical output device, an image generating device that outputs a projected image, a first mirror that reflects a first projected image, which is a portion of the projected image from the image generating device, a screen on which the first projected image reflected from the first mirror is projected on one surface, a second mirror that reflects a second projected image, which is another portion of the projected image from the image generating device, onto a windshield, and a first actuator that changes a position or angle of the first mirror, wherein the size of the first projected image projected onto the screen or the size of the second projected image reflected onto the windshield is changed based on the change in the position or angle of the first mirror. Accordingly, it is possible to change the size of a cluster display or a head-up display while integrating and implementing a plurality of displays using a single image generating device.

[0046] Meanwhile, a vehicle display device according to another embodiment of the present disclosure further includes a signal processing device that controls a first actuator, and the signal processing device can control the size of a first projection image projected on a screen or the size of a second projection image reflected on a windshield to be varied based on a variation in the position or angle of the first mirror. Accordingly, it is possible to vary the size of a cluster display or a head-up display while integrating and implementing a plurality of displays using a single image generating device.

[0047] Meanwhile, the signal processing device can control the size of the first projection image projected onto the screen or the size of the second projection image reflected onto the windshield by varying the height of the lower portion of the first mirror. Accordingly, it is possible to vary the size of the cluster display or head-up display while integrating multiple displays using a single image generating device.

[0048] Meanwhile, the signal processing device can control the display so that only the first projection image is displayed on the screen, and the second projection image is not projected onto the windshield. This allows for the integration of multiple displays using a single image generation device, while allowing for variable cluster display size.

[0049] Meanwhile, the signal processing device can control the display of only the second projection image on the windshield, preventing the first projection image from being displayed on the screen. This allows for the integration of multiple displays using a single image generation device, while allowing for variable head-up display size.

[0050] Figure 1 is a drawing showing an example of the exterior and interior of a vehicle.

[0051] FIG. 2 is a drawing illustrating the appearance of a vehicle display device according to an embodiment of the present disclosure.

[0052] FIG. 3 illustrates an example of an internal block diagram of the vehicle display device of FIG. 2.

[0053] FIGS. 4A to 4E are drawings for reference in explaining the operation of a vehicle display device according to an embodiment of the present disclosure.

[0054] FIG. 5 illustrates an example of an internal block diagram of a vehicle display device according to an embodiment of the present disclosure.

[0055] Figures 6 to 14d are drawings referenced in the description of Figure 5.

[0056] Hereinafter, the present disclosure will be described in more detail with reference to the drawings.

[0057] The suffixes "module" and "part" used in the following description are given solely for the convenience of writing this specification and do not impart any particularly significant meaning or role to the components themselves. Therefore, the terms "module" and "part" may be used interchangeably.

[0058] Figure 1 is a drawing showing an example of the exterior and interior of a vehicle.

[0059] Referring to the drawing, the vehicle (200) is operated by a plurality of wheels (103FR, 103FL, 103RL, etc.) that rotate by a power source and a steering wheel (150) for controlling the direction of travel of the vehicle (200).

[0060] Meanwhile, the vehicle (200) may further be equipped with a camera (195) for capturing images of the front of the vehicle.

[0061] Meanwhile, the vehicle (200) may be equipped with multiple displays (180a, 180b, 180h) for displaying images, information, etc. inside.

[0062] For example, among the plurality of displays (180a, 180b, 180h), the first display (180a) may be a cluster display, the second display (180b) may be a center information display (CID) display or an AVN display, and the third display (180h) may be a head-up display (HUD) display that projects an image onto a predetermined area (Ara) of a windshield (WS).

[0063] Meanwhile, in the present disclosure, among multiple displays (180a, 180b, 180h), the first display (180a) and the third display (180h) are integrated and implemented as a single device.

[0064] To this end, the vehicle display device (100) according to the embodiment of the present disclosure includes one picture generation device (300).

[0065] That is, the vehicle display device (100) according to the embodiment of the present disclosure outputs a plurality of projection images using a single image generating device (300), separates the optical paths of the plurality of projection images, projects the first projection image onto a screen (Scr) through a first optical path to display cluster information, and projects the second projection image onto a windshield (WS) through a second optical path to display various information such as vehicle speed. Accordingly, it is possible to integrate and implement a plurality of displays.

[0066] Meanwhile, the vehicle (200) described in this specification may be a concept that includes all of a vehicle equipped with an engine as a power source, a hybrid vehicle equipped with an engine and an electric motor as a power source, and an electric vehicle equipped with an electric motor as a power source.

[0067] FIG. 2 is a drawing illustrating the appearance of a vehicle display device according to an embodiment of the present disclosure.

[0068] A vehicle display device (100) according to an embodiment of the present disclosure may include a signal processing device (170) that performs signal processing for displaying images, information, etc. on at least one of a plurality of displays (180a, 180b, 180h).

[0069] Among the plurality of displays (180a, 180b, 180h), the first display (180a) may be a cluster display (180a) for displaying driving status, operation information, etc., the second display (180b) may be a center information display (CID) display (180b) for displaying vehicle driving information, navigation maps, various entertainment information, or images, and the third display (180h) may be a HUD display for displaying vehicle driving information.

[0070] Meanwhile, among the plurality of displays (180a, 180b, 180h), the first display (180a) may be provided with a screen (Scr) that displays a first projection image, and the third display (180h) may be provided with a windshield (WS) on which a second projection image is projected.

[0071] The signal processing device (170) has a memory (508) and a processor (175) inside and can control at least one of a plurality of displays (180a, 180b, 180h).

[0072] Meanwhile, the signal processing device (170) can execute a first virtual machine to a third virtual machine (not shown) on a hypervisor (505) within a processor (175).

[0073] The first virtual machine (not shown) is a server virtual machine and can control the second virtual machine (not shown) and the third virtual machine (not shown), which are guest virtual machines.

[0074] Meanwhile, the second virtual machine can be named the first guest virtual machine (Guest Virtual Maschine), and the third virtual machine can be named the second guest virtual machine.

[0075] The first guest virtualization machine (not shown) operates for the first display (180a), and the second guest virtualization machine (not shown) can operate for the second display (180b) or the third display (180h).

[0076] Meanwhile, the server virtualization machine (not shown) within the processor (175) can control the memory (508) based on the hypervisor (505) to be set for the same data transmission to the first guest virtualization machine (not shown) and the second guest virtualization machine (not shown). Accordingly, the same information or the same image can be displayed in synchronization on the first display (180a) and the second display (180b) within the vehicle.

[0077] Meanwhile, a server virtualization machine (not shown) within the processor (175) can receive and process wheel speed sensor data of the vehicle, and transmit the processed wheel speed sensor data to at least one of the first guest virtualization machine (not shown) or the second guest virtualization machine (not shown). Accordingly, the wheel speed sensor data of the vehicle can be shared with at least one virtual machine, etc.

[0078] Accordingly, it is possible to control multiple displays (180a, 180b, 180h) using one signal processing device (170).

[0079] Meanwhile, some of the multiple displays (180a, 180b, 180h) may operate under a Linux OS, while others may operate under a web OS.

[0080] The signal processing device (170) according to the embodiment of the present disclosure can control multiple displays (180a, 180b, 180h) operating under various operating systems (OS) to display the same information or the same image in synchronization.

[0081] FIG. 3 illustrates an example of an internal block diagram of a vehicle display device according to an embodiment of the present disclosure.

[0082] Referring to the drawings, a vehicle display device (100) according to an embodiment of the present disclosure may include an input unit (110), a communication device (120), an interface (130), a memory (140), a signal processing device (170), a plurality of displays (180a, 180b, 180h), an audio output unit (185), and a power supply unit (190).

[0083] The input unit (110) may be equipped with physical buttons, pads, etc. for button input, touch input, etc.

[0084] Meanwhile, the input unit (110) may be equipped with a microphone (not shown) for user voice input.

[0085] The communication device (120) can exchange data wirelessly with a mobile terminal (800) or a server (not shown).

[0086] In particular, the communication device (120) can wirelessly exchange data with the vehicle driver's mobile terminal. Various data communication methods are possible, such as Bluetooth, WiFi, WiFi Direct, and APiX.

[0087] The communication device (120) can receive weather information, road traffic information, for example, TPEG (Transport Protocol Expert Group) information, from a mobile terminal (800) or a server (not shown). To this end, the communication device (120) may be equipped with a mobile communication module (not shown).

[0088] The interface (130) can receive sensor information, etc. from the ECU (770) or sensor device (760) and transmit the received information to the signal processing device (170).

[0089] Here, the sensor information may include at least one of vehicle direction information, vehicle location information (GPS information), vehicle angle information, vehicle speed information, vehicle acceleration information, vehicle inclination information, vehicle forward / backward information, battery information, fuel information, tire information, vehicle lamp information, vehicle interior temperature information, and vehicle interior humidity information.

[0090] Such sensor information may be obtained from a heading sensor, a yaw sensor, a gyro sensor, a position module, a vehicle forward / backward sensor, a wheel sensor, a vehicle speed sensor, a body tilt detection sensor, a battery sensor, a fuel sensor, a tire sensor, a steering sensor based on steering wheel rotation, a vehicle internal temperature sensor, a vehicle internal humidity sensor, etc. Meanwhile, the position module may include a GPS module for receiving GPS information.

[0091] Meanwhile, the interface (130) can receive vehicle front image data, vehicle side image data, vehicle rear image data, vehicle surrounding obstacle distance information, etc. from a camera (195) or a rider (not shown), and transmit the received information to a signal processing device (170).

[0092] The memory (140) can store various data for the overall operation of the vehicle display device (100), such as a program for processing or controlling the signal processing device (170).

[0093] For example, the memory (140) may store data regarding a hypervisor, a server virtualization machine (not shown), and multiple guest virtualization machines for execution within the processor (175).

[0094] The audio output unit (185) converts an electric signal from the signal processing device (170) into an audio signal and outputs it. For this purpose, a speaker or the like may be provided.

[0095] The power supply unit (190) can supply power required for the operation of each component under the control of the signal processing device (170). In particular, the power supply unit (190) can receive power from a battery or the like inside the vehicle.

[0096] The third display, a head-up (HUD) display (180h), includes an image generating device (300 in FIG. 1) for image projection and can output an augmented reality-based object under the control of a signal processing device (170).

[0097] For example, the HUD display (180h) can output vehicle speed information, vehicle direction information, front vehicle object, distance indicator from the front vehicle, etc.

[0098] As another example, the HUD display (180h) can output an augmented reality rain carpet, an augmented reality route carpet, or an augmented reality dynamic carpet corresponding to the lane image.

[0099] The signal processing device (170) can control multiple displays (180a, 180b, 180h).

[0100] The signal processing device (170) controls the overall operation of each unit within the vehicle display device (100).

[0101] For example, the signal processing device (170) may include a memory (508) and a processor (175) that performs signal processing for a vehicle display (180a, 180b).

[0102] The processor (175) executes a hypervisor (not shown), and can execute a server virtualization machine (not shown) and multiple guest virtualization machines (not shown) on the executed hypervisor.

[0103] At this time, the first guest virtualization machine (not shown) operates for the first display (180a), and the second guest virtualization machine (not shown) can operate for the second display (180b) or the third display (180h).

[0104] Meanwhile, the signal processing device (170) can process various signals such as audio signals, video signals, and data signals. To this end, the signal processing device (170) can be implemented in the form of a system on chip (SOC).

[0105] The vehicle display device (100) according to the embodiment of the present disclosure may further include a plurality of actuators (ACTa to ACTc) that change the positions or angles of a plurality of mirrors or screens (Scr) described later.

[0106] FIGS. 4A to 4E are drawings for reference in explaining the operation of a vehicle display device according to an embodiment of the present disclosure.

[0107] First, FIG. 4c illustrates that a cluster image (410) is displayed on a screen (Scr) which is a first display (180a), and a virtual HUD image (420) is displayed in a predetermined area (Ara) in front of a windshield (WS) corresponding to a third display (180h).

[0108] According to the vehicle display device (100) of FIG. 3, using one image generating device (300), a cluster image (410) can be displayed on a screen (Scr), and a HUD image (430) can be displayed on a predetermined area (Ara) of a windshield (WS), as in FIG. 4c.

[0109] Meanwhile, a vehicle display device (100) according to one embodiment of the present disclosure changes the size of a projection image projected onto a screen (Scr) using an actuator. This will be described with reference to FIGS. 4b to 4e.

[0110] FIG. 4b illustrates that the first projection image projected on the screen (Scr), which is the first display (180a), is of the first size (Arb), and the second projection image projected on the windshield (WS), which is the third display (180h), is of the second size (Ara).

[0111] As shown in the drawing, the first size (Ara) may be larger than the second size (Arb). For example, the first size (Arb) may be approximately twice the size of the second size (Ara).

[0112] FIG. 4c illustrates that the first projection image projected on the screen (Scr), which is the first display (180a), is a third size (Arb2), and the second projection image projected on the windshield (WS), which is the third display (180h), is a fourth size (Ara2).

[0113] As shown in the drawing, the third size (Arb2) may be smaller than the fourth size (Ara2). For example, the third size (Arb2) may be approximately 0.5 times the fourth size (Ara2).

[0114] FIG. 4d illustrates that the first projection image projected on the screen (Scr), which is the first display (180a), is the fifth size (Arb3) and that there is no projection image projected on the windshield (WS), which is the third display (180h).

[0115] As shown in the drawing, the fifth size (Arb) may be a size that is the sum of the first size (Arb) and the second size (Ara) of FIG. 4b or a size that is the sum of the third size (Arb2) and the fourth size (Ara2) of FIG. 4c.

[0116] FIG. 4e illustrates that there is no projection image projected on the screen (Scr), which is the first display (180a), and the second projection image projected on the windshield (WS), which is the third display (180h), is of the sixth size (Ara4).

[0117] As shown in the drawing, the sixth size (Ara4) may be a size that is the sum of the first size (Arb) and the second size (Ara) of FIG. 4b or a size that is the sum of the third size (Arb2) and the fourth size (Ara2) of FIG. 4c.

[0118] A vehicle display device (100) according to one embodiment of the present disclosure uses an actuator to vary the size of a first projection image projected onto a screen (Scr), as illustrated in FIGS. 4b to 4d . Accordingly, it is possible to vary the size of a cluster display while integrating multiple displays using a single image generating device (300).

[0119] Meanwhile, a vehicle display device (100) according to one embodiment of the present disclosure uses an actuator to vary the size of a second projection image projected onto a windshield (WS), as illustrated in FIGS. 4b to 4d . Accordingly, it is possible to vary the size of a head-up display while integrating and implementing multiple displays using a single image generating device (300).

[0120] FIG. 5 illustrates an example of an internal block diagram of a vehicle display device according to an embodiment of the present disclosure.

[0121] Referring to the drawings, a vehicle display device (100) according to an embodiment of the present disclosure includes an optical output device (400), an image generating device (300) that outputs a projection image, a first mirror (310) that reflects a first projection image (LTa) that is a part of the projection images from the image generating device (300), a screen (Scr) on which the first projection image (LTa) reflected from the first mirror (310) is projected on one surface, a second mirror (320) that reflects a second projection image (LTb) that is another part of the projection images from the image generating device (300) onto a windshield (WS), and a first actuator (ACTa) that changes a position or angle of the first mirror (310).

[0122] Meanwhile, the first projection image (LTa), which is a portion of the projection images output from the image generating device (300), is projected onto one side of the screen (Scr) via the first mirror (310). Accordingly, a cluster image can be displayed on the first display (180a) including the screen (Scr).

[0123] Meanwhile, the second projection image (LTb), which is another part of the projection image output from the image generating device (300), is projected onto one side of the windshield (WS) via the second mirror (320). Accordingly, various information or images can be displayed on the third display (180h) including the windshield (WS).

[0124] Meanwhile, based on the variation in the position or angle of the first mirror (310), the size of the first projection image (LTa) projected onto the screen (Scr) is varied. Accordingly, the size of the cluster display can be varied while integrating multiple displays using a single image generating device (300).

[0125] Meanwhile, the size of the second projection image (LTb) reflected on the windshield (WS) can be varied based on the variation in the position or angle of the first mirror (310). Accordingly, the size of the head-up display can be varied while integrating multiple displays using a single image generating device (300).

[0126] Meanwhile, a vehicle display device (100) according to one embodiment of the present disclosure may further include a signal processing device (170) that controls a first actuator (ACTa).

[0127] Meanwhile, the signal processing device (170) can control the size of the first projection image (LTa) projected onto the screen (Scr) to be varied based on the variation in the position or angle of the first mirror (310). Accordingly, it is possible to vary the size of the cluster display while integrating and implementing multiple displays using a single image generating device (300).

[0128] Meanwhile, the signal processing device (170) can control the size of the second projection image (LTb) reflected on the windshield (WS) to be varied based on the variation in the position or angle of the first mirror (310). Accordingly, it is possible to vary the size of the head-up display while integrating and implementing multiple displays using a single image generating device (300).

[0129] Meanwhile, the signal processing device (170) can control the image generation device (300).

[0130] Meanwhile, the signal processing device (170) can control, in the first mode, the brightness of the first projection image (LTa) or the second projection image (LTb) to be at the first level, and, in the second mode, can control, in the second mode, the brightness of the first projection image (LTa) or the second projection image (LTb) to be at the second level. Accordingly, the brightness of the first projection image (LTa) or the second projection image (LTb) can be varied.

[0131] Meanwhile, the vehicle display device (100) according to the embodiment of the present disclosure may further include an external light sensor (711), an internal light sensor (713), or a user input unit (110).

[0132] The signal processing device (170) can output a control signal for varying the brightness of the first projection image (LTa) or the second projection image (LTb) based on the external illuminance (Cso) from the external illuminance sensor (711), the internal illuminance (Csi) from the internal illuminance sensor (713), or the setting input (Csp) from the user input unit (110).

[0133] For example, the signal processing device (170) can control the brightness of the first projection image (LTa) or the second projection image (LTb) to increase as the external illuminance (Cso) increases.

[0134] As another example, the signal processing device (170) can control the brightness of the first projection image (LTa) or the second projection image (LTb) to increase as the internal illuminance (Csi) decreases.

[0135] As another example, the signal processing device (170) can control the brightness of the first projection image (LTa) or the second projection image (LTb) to decrease as the setting input (Csp) decreases. Accordingly, the brightness of the first projection image (LTa) or the second projection image (LTb) projected on the screen (Scr) or the windshield (WS) can be varied.

[0136] Meanwhile, the image generation device (300) includes an optical output device (400) for optical output.

[0137] Meanwhile, the light output device (400) may include a light source (309) and a digital mirror device (308) that reflects light output from the light source (309).

[0138] For example, the light source (309) may include an LED diode or a laser diode.

[0139] Meanwhile, the digital mirror device (308) may be equipped with a plurality of digital mirrors. For example, it may be equipped with a digital micromirror device (DMD).

[0140] Meanwhile, the image generation device (300) may further include a digital mirror control unit (305) for controlling a digital mirror device (308) and a light source control unit (306) for controlling a light source (309).

[0141] In particular, the image generation device (300) has a processor (370), and the processor (370) may include a digital mirror control unit (305) for controlling a digital mirror device (308) and a light source control unit (306) for controlling a light source (309).

[0142] Meanwhile, the signal processing device (170) may be equipped with an image generation control unit (173) for controlling the image generation device (300) and a position control unit (174) for controlling the position or angle of a plurality of mirrors (310 to 330).

[0143] Meanwhile, the signal processing device (170) may perform operation control of the digital mirror device (308) or operation control of the light source (309) based on external illuminance (Cso) from the external illuminance sensor (711), internal illuminance (Csi) from the internal illuminance sensor (713), or setting input (Csp) from the user input unit (110).

[0144] For example, the signal processing device (170) can control the brightness of the first projection image (LTa) to be smaller than the brightness of the second projection image (LTb) output from the light output device (400) for each frame as the external illuminance (Cso) increases.

[0145] As another example, the signal processing device (170) can control the brightness of the first projection image (LTa) to be lower than the brightness of the second projection image (LTb) output from the light output device (400) for each frame as the internal illuminance (Csi) decreases.

[0146] As another example, the signal processing device (170) can control the brightness of the first projection image (LTa) to be smaller than the brightness of the second projection image (LTb) output from the light output device (400) for each frame as the setting input (Csp) becomes smaller.

[0147] Meanwhile, a vehicle display device (100) according to one embodiment of the present disclosure may further include a second actuator (ACTc) for adjusting the height or angle of the screen (Scr).

[0148] For example, the signal processing device (170) can control the height of the screen (Scr) to be adjusted. Accordingly, it is possible to vary the height of the cluster display while integrating multiple displays using a single image generating device (300).

[0149] Meanwhile, a vehicle display device (100) according to one embodiment of the present disclosure may further include a third actuator (ACTb) for adjusting the height or angle of the second mirror (320).

[0150] For example, the signal processing device (170) can control the height or angle of the first mirror (310) or the second mirror (320) to be adjusted in response to the height adjustment of the screen (Scr). Accordingly, it is possible to vary the height of the cluster display while integrating and implementing multiple displays using a single image generating device (300).

[0151] Figures 6 to 14d are drawings referenced in the description of Figure 5.

[0152] FIG. 6 illustrates an example in which the first projection image and the second projection image are displayed as in FIG. 4b, and then only the first projection image is displayed as in FIG. 4d.

[0153] Referring to the drawing, the image generating device (300) in the vehicle display device (100) according to one embodiment of the present disclosure outputs a first projection image (LTa) and a second projection image (LTb), as shown in (a) of FIG. 6.

[0154] At this time, the size of the first projection image (LTa) output from the image generation device (300) may be larger than the size of the second projection image (LTb).

[0155] The first projection image (LTa) output from the image generating device (300) is reflected from a portion (SZa) of the first mirror (310) and projected onto one surface of the screen (Scr).

[0156] At this time, the size of the first projection image (LTa) projected on one side of the screen (Scr) can correspond to the first size (Arb) in the vertical direction.

[0157] Meanwhile, the second projection image (LTb) output from the image generating device (300) is reflected in a part of the second mirror (320) and projected onto one surface of the windshield (WS).

[0158] At this time, the size of the second projection image (LTb) projected on one side of the windshield (WS) can correspond to the second size (Ara) in the vertical direction.

[0159] According to (a) of Fig. 6, the image generating device (300) outputs the first projection image (LTa) in an upward direction rather than the second projection image (LTb).

[0160] And, according to (a) of FIG. 6, the height (Ha) of the lower end (TEa) of the first mirror (310) may be higher than the height of the lower end (TEb) of the second mirror (320).

[0161] Meanwhile, the signal processing device (170) can control the size of the first projection image (LTa) projected on the screen (Scr) to increase by reducing the height of the lower end (TEa) of the first mirror (310) when the height of the lower end (TEa) of the first mirror (310) is higher than the height of the lower end (TEb) of the second mirror (320). Accordingly, it is possible to vary the size of the cluster display while integrating and implementing multiple displays using one image generating device (300).

[0162] Figure 6 (b) illustrates that the size of the first projection image (LTa) projected on the screen (Scr) is maximum.

[0163] That is, (b) of FIG. 6 illustrates that the second projection image (LTb) projected onto one surface of the windshield (WS) is not projected.

[0164] For example, when the height of the lower end (TEa) of the first mirror (310) is Ha, the signal processing device (170) can control the height of the lower end (TEa) of the first mirror (310) to be reduced to Hb, as shown in the drawing.

[0165] Meanwhile, the signal processing device (170) can control, in a display mode such as (a) of FIG. 6, a first projection image (LTa) to be displayed on the screen (Scr) and a second projection image (LTb) to be projected and reflected on the windshield (WS), and in a cluster-only display mode such as (b) of FIG. 6, the first projection image (LTa) to be displayed on the screen (Scr) and the second projection image (LTb) to not be projected on the windshield (WS). Accordingly, it is possible to change the size of the cluster display while integrating and implementing multiple displays using one image generating device (300).

[0166] Meanwhile, in a multiple display mode such as (a) of FIG. 6, the size (SZa) of the area where the first projection image (LTa) is incident on the first mirror (310) may be larger than the size (SZb) of the area where the first projection image (LTa) is incident on the first mirror (310) in a cluster-only display mode such as (b) of FIG. 6.

[0167] That is, compared to (a) of FIG. 6, in the case of (b) of FIG. 6, the size of the first projection image (LTa) output from the image generating device (300) becomes larger, and accordingly, the size of the area incident on the first mirror (310) becomes larger, and ultimately, the size of the first projection image (LTa) projected on the screen (Scr) becomes larger.

[0168] At this time, the size of the first projection image (LTa) projected on one side of the screen (Scr) can correspond to the fifth size (Arb3) in the vertical direction. That is, the fifth size (Arb3) can be larger than the first size (Arb).

[0169] Accordingly, it is possible to change the size of the cluster display while integrating and implementing multiple displays using one image generation device (300).

[0170] FIG. 7 illustrates an example in which the first projection image and the second projection image are displayed as in FIG. 4b, and then the size of the first projection image decreases as in FIG. 4c.

[0171] Referring to the drawing, the image generating device (300) in the vehicle display device (100) according to one embodiment of the present disclosure outputs a first projection image (LTa) and a second projection image (LTb), as shown in (a) of FIG. 7.

[0172] The first projection image (LTa) output from the image generating device (300) is reflected from a portion (SZa) of the first mirror (310) and projected onto one surface of the screen (Scr).

[0173] At this time, the size of the first projection image (LTa) projected on one side of the screen (Scr) can correspond to the first size (Arb) in the vertical direction.

[0174] Meanwhile, the second projection image (LTb) output from the image generating device (300) is reflected in a part of the second mirror (320) and projected onto one surface of the windshield (WS).

[0175] At this time, the size of the second projection image (LTb) projected on one side of the windshield (WS) can correspond to the second size (Ara) in the vertical direction.

[0176] According to (a) of Fig. 7, the image generating device (300) outputs the first projection image (LTa) in an upward direction rather than the second projection image (LTb).

[0177] And, according to (a) of FIG. 7, the height (Ha) of the lower end (TEa) of the first mirror (310) may be higher than the height of the lower end (TEb) of the second mirror (320).

[0178] Meanwhile, the signal processing device (170) can control the size of the first projection image (LTa) projected on the screen (Scr) to be reduced by increasing the height of the lower end (TEa) of the first mirror (310) when the height of the lower end (TEa) of the first mirror (310) is higher than the height of the lower end (TEb) of the second mirror (320). Accordingly, it is possible to vary the size of the cluster display while integrating and implementing multiple displays using one image generating device (300).

[0179] Figure 7 (b) illustrates that the size of the first projection image (LTa) projected onto the screen (Scr) is smaller than that of Figure 7 (a).

[0180] That is, (b) of FIG. 7 illustrates that, as in FIG. 4c, the size of the second projection image (LTb) projected onto one side of the windshield (WS) is larger than the size of the first projection image (LTa) projected onto the screen (Scr).

[0181] For example, when the height of the lower end (TEa) of the first mirror (310) is Ha, the signal processing device (170) can control the height of the lower end (TEa) of the first mirror (310) to increase to Hc, as shown in the drawing.

[0182] Meanwhile, in a multiple display mode such as (a) of FIG. 7, the size (SZc) of the area where the first projection image (LTa) is incident on the first mirror (310) may be smaller than the size (SZa) of the area where the first projection image (LTa) is incident on the first mirror (310) in a multiple display mode such as (b) of FIG. 7.

[0183] That is, compared to (a) of FIG. 7, in the case of (b) of FIG. 7, the size of the first projection image (LTa) output from the image generating device (300) becomes smaller, and accordingly, the size of the area incident on the first mirror (310) becomes smaller, and ultimately, the size of the first projection image (LTa) projected on the screen (Scr) becomes smaller.

[0184] At this time, the size of the first projection image (LTa) projected on one side of the screen (Scr) can correspond to the third size (Arb2) in the vertical direction. That is, the third size (Arb2) can be smaller than the first size (Arb).

[0185] Accordingly, it is possible to change the size of the cluster display while integrating and implementing multiple displays using one image generation device (300).

[0186] Meanwhile, in a multiple display mode such as (a) of FIG. 7, the size of the area where the second projection image (LTb) is incident on the second mirror (320) may be larger than the size of the area where the second projection image (LTb) is incident on the second mirror (320) in a multiple display mode such as (b) of FIG. 7.

[0187] That is, compared to (a) of FIG. 7, in the case of (b) of FIG. 7, the size of the second projection image (LTb) output from the image generating device (300) becomes larger, and accordingly, the size of the area incident on the second mirror (320) becomes larger, and ultimately, the size of the second projection image (LTb) projected onto the windshield (WS) becomes larger.

[0188] At this time, the size of the second projection image (LTb) projected on one side of the windshield (WS) can correspond to the fourth size (Ara2) in the vertical direction. That is, the fourth size (Ara2) can be larger than the second size (Ara).

[0189] Accordingly, it is possible to change the size of the head-up display while integrating and implementing multiple displays using one image generating device (300).

[0190] FIG. 8 illustrates an example in which the first projection image and the second projection image are displayed as in FIG. 4b, and then only the second projection image is displayed as in FIG. 4e.

[0191] Referring to the drawing, the image generating device (300) in the vehicle display device (100) according to one embodiment of the present disclosure outputs a first projection image (LTa) and a second projection image (LTb), as shown in (a) of FIG. 8.

[0192] At this time, the size of the first projection image (LTa) projected on one side of the screen (Scr) may correspond to the first size (Arb) in the vertical direction, and the size of the second projection image (LTb) projected on one side of the windshield (WS) may correspond to the second size (Ara) in the vertical direction.

[0193] According to (a) of Fig. 8, the image generating device (300) outputs the first projection image (LTa) in an upward direction rather than the second projection image (LTb).

[0194] And, according to (a) of FIG. 8, the height (Ha) of the lower end (TEa) of the first mirror (310) may be higher than the height of the lower end (TEb) of the second mirror (320).

[0195] Meanwhile, the signal processing device (170) can control the size of the first projection image (LTa) projected on the screen (Scr) to be reduced by increasing the height of the lower end (TEa) of the first mirror (310) when the height of the lower end (TEa) of the first mirror (310) is higher than the height of the lower end (TEb) of the second mirror (320).

[0196] Figure 8 (b) illustrates that the first projection image is not projected on the screen (Scr), and the size of the second projection image (LTb) projected on one surface of the windshield (WS) is maximum.

[0197] For example, when the height of the lower end (TEa) of the first mirror (310) is Ha, the signal processing device (170) can control the height of the lower end (TEa) of the first mirror (310) to increase to Hd, as shown in the drawing.

[0198] Meanwhile, the signal processing device (170) can control, in a display mode such as (a) of FIG. 8, a first projection image (LTa) to be displayed on the screen (Scr) and a second projection image (LTb) to be projected and reflected on the windshield (WS), and in a head-up only display mode such as (b) of FIG. 8, the first projection image (LTa) is not projected on the screen (Scr), but a second projection image (LTb) to be projected and reflected on the windshield (WS). Accordingly, it is possible to change the size of the head-up display while integrating and implementing multiple displays using one image generating device (300).

[0199] Meanwhile, in a multiple display mode such as (a) of FIG. 8, the size of the area where the second projection image (LTb) is incident on the second mirror (320) may be larger than the size of the area where the second projection image (LTb) is incident on the second mirror (320) in a head-up only display mode such as (b) of FIG. 8.

[0200] At this time, the size of the second projection image (LTb) projected on one side of the windshield (WS) can correspond to the sixth size (Ara4) in the vertical direction. That is, the sixth size (Ara4) can be larger than the second size (Ara).

[0201] Accordingly, it is possible to change the size of the head-up display while integrating and implementing multiple displays using one image generating device (300).

[0202] Figure 9 illustrates an example of a screen in which the height of the screen changes while the first projection image and the second projection image are displayed, as in Figure 4b.

[0203] Referring to the drawing, the image generating device (300) in the vehicle display device (100) according to one embodiment of the present disclosure outputs a first projection image (LTa) and a second projection image (LTb), as shown in (a) of FIG. 9.

[0204] At this time, the size of the first projection image (LTa) projected on one side of the screen (Scr) may correspond to the first size (Arb) in the vertical direction, and the size of the second projection image (LTb) projected on one side of the windshield (WS) may correspond to the second size (Ara) in the vertical direction.

[0205] According to (a) of Fig. 9, the image generating device (300) outputs the first projection image (LTa) in an upward direction rather than the second projection image (LTb).

[0206] And, according to (a) of FIG. 9, the height (Ha) of the lower end (TEa) of the first mirror (310) may be higher than the height of the lower end (TEb) of the second mirror (320).

[0207] Meanwhile, the signal processing device (170) can control the height of the screen (Scr) to be adjusted.

[0208] For example, the signal processing device (170) can control a second actuator (ACTc) that adjusts the height or angle of the screen (Scr).

[0209] Figure 9 (b) illustrates that the height of the screen (Scr) increases from the first height (H1) to the second height (H2) according to the operation of the second actuator (ACTc).

[0210] Meanwhile, the signal processing device (170) can control the first actuator (ACTa) to change the position or angle of the first mirror (310) when the height of the screen (Scr) is changed, or control the third actuator (ACTb) to adjust the height or angle of the second mirror (320).

[0211] For example, the signal processing device (170) can control the first size (Arb) of the first projection image (LTa) projected on one side of the screen (Scr) and the size of the second projection image (LTb) to maintain the second size (Ara) in the vertical direction even when the height of the screen (Scr) increases.

[0212] In the drawing, as the height of the screen (Scr) increases from the first height (H1) to the second height (H2), the position or angle of the first mirror (310) is changed, so that the incident angle of the first projection image (LTa) to the first mirror (310) increases, and the height or angle of the second mirror (310) is changed, so that the incident angle of the second projection image (LTb) to the second mirror (320) decreases.

[0213] Accordingly, the size of the cluster display and head-up display can be maintained while setting the height of the cluster display for the driver.

[0214] Fig. 10 illustrates another example in which the first projection image and the second projection image are displayed as in Fig. 4b, and then only the first projection image is displayed as in Fig. 4d.

[0215] Fig. 10 is similar to Fig. 6, but the difference is that the image generating device (300) outputs the first projection image (LTa) in a downward direction rather than the second projection image (LTb).

[0216] Referring to the drawing, the image generating device (300) in the vehicle display device (100) according to one embodiment of the present disclosure outputs a first projection image (LTa) and a second projection image (LTb), as shown in (a) of FIG. 10.

[0217] At this time, the size of the first projection image (LTa) projected on one side of the screen (Scr) corresponds to the first size (Arb) in the vertical direction, and the size of the second projection image (LTb) projected on one side of the windshield (WS) can correspond to the second size (Ara) in the vertical direction.

[0218] According to (a) of Fig. 10, the image generating device (300) outputs the first projection image (LTa) in a lower direction than the second projection image (LTb).

[0219] And, according to (a) of FIG. 10, the height (Hma) of the lower end (TEa) of the first mirror (310) may be lower than the height of the lower end (TEb) of the second mirror (320).

[0220] Meanwhile, the signal processing device (170) can control the size of the first projection image (LTa) projected on the screen (Scr) to increase by increasing the height of the lower end (TEa) of the first mirror (310) when the height of the lower end (TEa) of the first mirror (310) is lower than the height of the lower end (TEb) of the second mirror (320). Accordingly, it is possible to vary the size of the cluster display while integrating and implementing multiple displays using one image generating device (300).

[0221] Figure 10 (b) illustrates that the size of the first projection image (LTa) projected on the screen (Scr) is maximum.

[0222] That is, (b) of FIG. 10 illustrates that the second projection image (LTb) projected on one surface of the windshield (WS) is not projected.

[0223] For example, when the height of the lower end (TEa) of the first mirror (310) is Hma, the signal processing device (170) can control the height of the lower end (TEa) of the first mirror (310) to increase to Hmb, as shown in the drawing.

[0224] Meanwhile, the signal processing device (170) can control, in a display mode such as (a) of FIG. 10, a first projection image (LTa) to be displayed on the screen (Scr) and a second projection image (LTb) to be projected and reflected on the windshield (WS), and in a cluster-only display mode such as (b) of FIG. 10, the first projection image (LTa) to be displayed on the screen (Scr) and the second projection image (LTb) to not be projected on the windshield (WS). Accordingly, it is possible to change the size of the cluster display while integrating and implementing multiple displays using one image generating device (300).

[0225] Meanwhile, in a multiple display mode such as (a) of FIG. 10, the size (SZa) of the area where the first projection image (LTa) is incident on the first mirror (310) may be larger than the size (SZb) of the area where the first projection image (LTa) is incident on the first mirror (310) in a cluster-only display mode such as (b) of FIG. 10.

[0226] That is, compared to (a) of FIG. 10, in the case of (b) of FIG. 10, the size of the first projection image (LTa) output from the image generating device (300) becomes larger, and accordingly, the size of the area incident on the first mirror (310) becomes larger, and ultimately, the size of the first projection image (LTa) projected on the screen (Scr) becomes larger.

[0227] At this time, the size of the first projection image (LTa) projected on one side of the screen (Scr) can correspond to the fifth size (Arb3) in the vertical direction. That is, the fifth size (Arb3) can be larger than the first size (Arb).

[0228] Accordingly, it is possible to change the size of the cluster display while integrating and implementing multiple displays using one image generation device (300).

[0229] Fig. 11 illustrates another example in which the first projection image and the second projection image are displayed as in Fig. 4b, and then the size of the first projection image decreases as in Fig. 4c.

[0230] Referring to the drawing, the image generating device (300) in the vehicle display device (100) according to one embodiment of the present disclosure outputs a first projection image (LTa) and a second projection image (LTb), as shown in (a) of FIG. 11.

[0231] At this time, the size of the first projection image (LTa) projected on one side of the screen (Scr) corresponds to the first size (Arb) in the vertical direction, and the size of the second projection image (LTb) projected on one side of the windshield (WS) can correspond to the second size (Ara) in the vertical direction.

[0232] According to (a) of Fig. 11, the image generating device (300) outputs the first projection image (LTa) in a lower direction than the second projection image (LTb).

[0233] And, according to (a) of FIG. 11, the height (Hma) of the lower end (TEa) of the first mirror (310) may be higher than the height of the lower end (TEb) of the second mirror (320).

[0234] Meanwhile, the signal processing device (170) can control the size of the first projection image (LTa) projected on the screen (Scr) to be reduced by reducing the height of the lower end (TEa) of the first mirror (310) when the height of the lower end (TEa) of the first mirror (310) is lower than the height of the lower end (TEb) of the second mirror (320). Accordingly, it is possible to vary the size of the cluster display while integrating and implementing multiple displays using one image generating device (300).

[0235] Figure 11 (b) illustrates that the size of the first projection image (LTa) projected onto the screen (Scr) is smaller than that of Figure 11 (a).

[0236] That is, (b) of FIG. 11 illustrates that, as in FIG. 4c, the size of the second projection image (LTb) projected onto one side of the windshield (WS) is larger than the size of the first projection image (LTa) projected onto the screen (Scr).

[0237] For example, when the height of the lower end (TEa) of the first mirror (310) is Hma, the signal processing device (170) can control the height of the lower end (TEa) of the first mirror (310) to be reduced to Hmc, as shown in the drawing.

[0238] Meanwhile, in a multiple display mode such as (a) of FIG. 11, the size (SZc) of the area where the first projection image (LTa) is incident on the first mirror (310) may be smaller than the size (SZa) of the area where the first projection image (LTa) is incident on the first mirror (310) in a multiple display mode such as (b) of FIG. 11.

[0239] That is, compared to (a) of FIG. 11, in the case of (b) of FIG. 11, the size of the first projection image (LTa) output from the image generating device (300) becomes smaller, and accordingly, the size of the area incident on the first mirror (310) becomes smaller, and ultimately, the size of the first projection image (LTa) projected on the screen (Scr) becomes smaller.

[0240] At this time, the size of the first projection image (LTa) projected on one side of the screen (Scr) can correspond to the third size (Arb2) in the vertical direction. That is, the third size (Arb2) can be smaller than the first size (Arb).

[0241] Accordingly, it is possible to change the size of the cluster display while integrating and implementing multiple displays using one image generation device (300).

[0242] Meanwhile, in a multiple display mode such as (a) of FIG. 11, the size of the area where the second projection image (LTb) is incident on the second mirror (320) may be larger than the size of the area where the second projection image (LTb) is incident on the second mirror (320) in a multiple display mode such as (b) of FIG. 11.

[0243] That is, compared to (a) of FIG. 11, in the case of (b) of FIG. 11, the size of the second projection image (LTb) output from the image generating device (300) becomes larger, and accordingly, the size of the area incident on the second mirror (320) becomes larger, and ultimately, the size of the second projection image (LTb) projected onto the windshield (WS) becomes larger.

[0244] At this time, the size of the second projection image (LTb) projected on one side of the windshield (WS) can correspond to the fourth size (Ara2) in the vertical direction. That is, the fourth size (Ara2) can be larger than the second size (Ara).

[0245] Accordingly, it is possible to change the size of the head-up display while integrating and implementing multiple displays using one image generating device (300).

[0246] Figure 12 illustrates another example in which the first projection image and the second projection image are displayed as in Figure 4b, and then only the second projection image is displayed as in Figure 4e.

[0247] Referring to the drawing, the image generating device (300) in the vehicle display device (100) according to one embodiment of the present disclosure outputs a first projection image (LTa) and a second projection image (LTb), as shown in (a) of FIG. 12.

[0248] At this time, the size of the first projection image (LTa) projected on one side of the screen (Scr) may correspond to the first size (Arb) in the vertical direction, and the size of the second projection image (LTb) projected on one side of the windshield (WS) may correspond to the second size (Ara) in the vertical direction.

[0249] According to (a) of Fig. 12, the image generating device (300) outputs the first projection image (LTa) in a lower direction than the second projection image (LTb).

[0250] And, according to (a) of FIG. 12, the height (Hma) of the lower end (TEa) of the first mirror (310) may be higher than the height of the lower end (TEb) of the second mirror (320).

[0251] Meanwhile, the signal processing device (170) can control the size of the first projection image (LTa) projected on the screen (Scr) to be reduced by reducing the height of the lower end (TEa) of the first mirror (310) when the height of the lower end (TEa) of the first mirror (310) is lower than the height of the lower end (TEb) of the second mirror (320).

[0252] Figure 12 (b) illustrates that the first projection image is not projected on the screen (Scr), and the size of the second projection image (LTb) projected on one side of the windshield (WS) is at its maximum.

[0253] For example, when the height of the lower end (TEa) of the first mirror (310) is Hma, the signal processing device (170) can control the height of the lower end (TEa) of the first mirror (310) to be reduced to Hmd, as shown in the drawing.

[0254] Meanwhile, the signal processing device (170) can control, in a display mode such as (a) of FIG. 12, a first projection image (LTa) to be displayed on the screen (Scr) and a second projection image (LTb) to be projected and reflected on the windshield (WS), and in a head-up only display mode such as (b) of FIG. 12, the first projection image (LTa) is not projected on the screen (Scr), but a second projection image (LTb) to be projected and reflected on the windshield (WS). Accordingly, it is possible to change the size of the head-up display while integrating and implementing multiple displays using one image generating device (300).

[0255] Meanwhile, in a multiple display mode such as (a) of FIG. 12, the size of the area where the second projection image (LTb) is incident on the second mirror (320) may be larger than the size of the area where the second projection image (LTb) is incident on the second mirror (320) in a head-up only display mode such as (b) of FIG. 12.

[0256] At this time, the size of the second projection image (LTb) projected on one side of the windshield (WS) can correspond to the sixth size (Ara4) in the vertical direction. That is, the sixth size (Ara4) can be larger than the second size (Ara).

[0257] Accordingly, it is possible to change the size of the head-up display while integrating and implementing multiple displays using one image generating device (300).

[0258] Figure 13 illustrates another example of a screen in which the height of the screen is varied while the first projection image and the second projection image are displayed, as in Figure 4b.

[0259] Referring to the drawing, the image generating device (300) in the vehicle display device (100) according to one embodiment of the present disclosure outputs a first projection image (LTa) and a second projection image (LTb), as shown in (a) of FIG. 13.

[0260] At this time, the size of the first projection image (LTa) projected on one side of the screen (Scr) may correspond to the first size (Arb) in the vertical direction, and the size of the second projection image (LTb) projected on one side of the windshield (WS) may correspond to the second size (Ara) in the vertical direction.

[0261] According to (a) of Fig. 13, the image generating device (300) outputs the first projection image (LTa) in a lower direction than the second projection image (LTb).

[0262] And, according to (a) of FIG. 13, the height (Hma) of the lower end (TEa) of the first mirror (310) may be lower than the height of the lower end (TEb) of the second mirror (320).

[0263] Meanwhile, the signal processing device (170) can control the height of the screen (Scr) to be adjusted.

[0264] For example, the signal processing device (170) can control a second actuator (ACTc) that adjusts the height or angle of the screen (Scr).

[0265] Figure 13 (b) illustrates that the height of the screen (Scr) increases from the third height (H3) to the fourth height (H4) according to the operation of the second actuator (ACTc).

[0266] Meanwhile, the signal processing device (170) can control the first actuator (ACTa) to change the position or angle of the first mirror (310) when the height of the screen (Scr) is changed, or control the third actuator (ACTb) to adjust the height or angle of the second mirror (320).

[0267] For example, the signal processing device (170) can control the first size (Arb) of the first projection image (LTa) projected on one side of the screen (Scr) and the size of the second projection image (LTb) to maintain the second size (Ara) in the vertical direction even when the height of the screen (Scr) increases.

[0268] In the drawing, it is illustrated that the position or angle of the first mirror (310) changes as the height of the screen (Scr) increases from the first height (H1) to the second height (H2).

[0269] Accordingly, the size of the cluster display and head-up display can be maintained while setting the height of the cluster display for the driver.

[0270] Figures 14a to 14d are drawings referred to in the description of Figure 5.

[0271] FIG. 14a corresponds to FIG. 4b and illustrates that the first display (180a) has a first size (Arb) and the third display (180h) has a second size (Ara) smaller than the first size (Arb).

[0272] Referring to the drawing, a first projection image (810) of a first size (Arb) may be displayed on a first display (180a) which is a cluster display, and a second projection image (820) of a second size (Ara) may be displayed on a third display (180h) which is a head-up display.

[0273] FIG. 14b corresponds to FIG. 4c and illustrates that the first display (180a) is a third size (Arb2) and the third display (180h) is a fourth size (Ara2) larger than the third size (Arb2).

[0274] Referring to the drawing, a first projection image (810b) of a third size (Arb2) may be displayed on a first display (180a) which is a cluster display, and a second projection image (820b) of a fourth size (Ara2) may be displayed on a third display (180h) which is a head-up display.

[0275] FIG. 14c corresponds to FIG. 4d and illustrates that the first display (180a) is the fifth size (Arb3) and that there is no projection image projected onto the windshield (WS), which is the third display (180h).

[0276] Referring to the drawing, a first projection image (810c) of the fifth size (Arb3) is displayed on the first display (180a), which is a cluster display, and no projection image is displayed on the third display (180h), which is a head-up display.

[0277] FIG. 14d corresponds to FIG. 4e and illustrates that there is no projection image projected on the first display (180a) and that the third display (180h) is a large sixth size (Ara4).

[0278] Referring to the drawing, there is no projection image projected on the first display (180a), which is a cluster display, and a second projection image (820d) of the sixth size (Ara4) can be displayed on the third display (180h), which is a head-up display.

[0279] Meanwhile, a vehicle display device (100) according to another embodiment of the present disclosure includes an optical output device (400), an image generating device (300) that outputs a projection image, a first mirror (310) that reflects a first projection image (LTa) that is a part of the projection image from the image generating device (300), a screen (Scr) on which the first projection image (LTa) reflected from the first mirror (310) is projected on one surface, a second mirror (320) that reflects a second projection image (LTb) that is another part of the projection image from the image generating device (300) onto a windshield (WS), and a first actuator (ACTa) that changes the position or angle of the first mirror (310), and based on the variation of the position or angle of the first mirror (310), the size of the first projection image (LTa) projected onto the screen (Scr) or the second projection image (LTb) reflected onto the windshield (WS) is changed. The size of the image (LTb) is variable. Accordingly, the size of the cluster display or head-up display can be varied while integrating multiple displays using a single image generation device (300).

[0280] Meanwhile, a vehicle display device (100) according to another embodiment of the present disclosure further includes a signal processing device (170) that controls a first actuator (ACTa), and the signal processing device (170) can control the size of a first projection image (LTa) projected on a screen (Scr) or the size of a second projection image (LTb) reflected on a windshield (WS) to be varied based on variation in the position or angle of the first mirror (310). Accordingly, it is possible to vary the size of a cluster display or a head-up display while integrating and implementing a plurality of displays using a single image generating device (300).

[0281] Meanwhile, the signal processing device (170) can control the size of the first projection image (LTa) projected onto the screen (Scr) or the size of the second projection image (LTb) reflected onto the windshield (WS) to be varied by varying the height of the lower end (TEa) of the first mirror (310). Accordingly, it is possible to vary the size of the cluster display or head-up display while integrating and implementing multiple displays using one image generating device (300).

[0282] Although the preferred embodiments of the present disclosure have been illustrated and described above, the present disclosure is not limited to the specific embodiments described above, and various modifications may be made by a person skilled in the art to which the present invention pertains without departing from the gist of the present disclosure as claimed in the claims, and such modifications should not be understood individually from the technical idea or prospect of the present disclosure.

Claims

1. An image generating device including an optical output device and outputting a projection image; A first mirror that reflects a first projection image, which is a part of the projection image from the image generating device; A screen on which the first projection image reflected from the first mirror is projected on one surface; A second mirror that reflects a second projection image, which is another portion of the projection image from the image generating device, onto the windshield; A first actuator for changing the position or angle of the first mirror; A vehicle display device in which the size of the first projection image projected onto the screen is varied based on variation in the position or angle of the first mirror.

2. In paragraph 1, A vehicle display device in which the size of the second projection image reflected on the windshield is varied based on variation in the position or angle of the first mirror.

3. In paragraph 1, It further includes a signal processing device that controls the first actuator; The above signal processing device, A vehicle display device that controls the size of the first projection image projected on the screen to vary based on variation in the position or angle of the first mirror.

4. In paragraph 3, The above signal processing device, A vehicle display device that controls the size of the second projection image reflected on the windshield to vary based on variation in the position or angle of the first mirror.

5. In paragraph 3, The above signal processing device, A vehicle display device that controls the size of the first projection image projected on the screen to be reduced by increasing the height of the lower end of the first mirror when the height of the lower end of the first mirror is higher than the height of the lower end of the second mirror.

6. In paragraph 3, The above signal processing device, A vehicle display device that controls the size of the first projection image projected on the screen to increase by reducing the height of the lower end of the first mirror when the height of the lower end of the first mirror is higher than the height of the lower end of the second mirror.

7. In paragraph 3, The above signal processing device, In the multiple display mode, the first projection image is displayed on the screen, and the second projection image is projected and reflected on the windshield, A vehicle display device in which, in a cluster-only display mode, the first projection image is displayed on the screen and the second projection image is controlled not to be projected on the windshield.

8. In paragraph 1, In the multiple display mode, the size of the area where the first projection image is incident on the first mirror is larger than that of the first projection image. A vehicle display device in which, in a cluster-only display mode, the size of the area where the first projection image is incident on the first mirror is larger.

9. In paragraph 3, The above signal processing device, In the multiple display mode, the first projection image is displayed on the screen, and the second projection image is projected and reflected on the windshield, A vehicle display device that, in a head-up only display mode, controls the first projection image not to be projected on the screen, but the second projection image to be projected and reflected on the windshield.

10. In paragraph 1, In the multiple display mode, the size of the area where the second projection image is incident on the second mirror is larger than that of the area where the second projection image is incident on the second mirror. A vehicle display device in which, in a head-up only display mode, the size of the area where the second projection image is incident on the second mirror is larger.

11. In paragraph 3, Further comprising a second actuator for adjusting the height or angle of the screen; The above signal processing device, A vehicle display device that controls the height of the above screen to be adjusted.

12. In paragraph 11, Further comprising a third actuator for adjusting the height or angle of the second mirror; The above signal processing device, A vehicle display device that controls the height or angle of the first mirror or the second mirror to be adjusted in response to the height adjustment of the screen.

13. In paragraph 3, The above signal processing device, A vehicle display device that reduces the height of the lower end of the first mirror when the height of the lower end of the first mirror is lower than the height of the lower end of the second mirror, thereby reducing the size of the first projection image projected on the screen.

14. In paragraph 3, The above signal processing device, A vehicle display device that controls the size of the first projection image projected on the screen to increase by increasing the height of the lower end of the first mirror when the height of the lower end of the first mirror is lower than the height of the lower end of the second mirror.

15. An image generating device including an optical output device and outputting a projection image; A first mirror that reflects a first projection image, which is a part of the projection image from the image generating device; A screen on which the first projection image reflected from the first mirror is projected on one surface; A second mirror that reflects a second projection image, which is another portion of the projection image from the image generating device, onto the windshield; A first actuator for changing the position or angle of the first mirror; A vehicle display device in which the size of the first projection image projected on the screen or the size of the second projection image reflected on the windshield is varied based on the variation of the position or angle of the first mirror.

16. In paragraph 15, It further includes a signal processing device that controls the first actuator; The above signal processing device, A vehicle display device that controls the size of the first projection image projected on the screen or the size of the second projection image reflected on the windshield to be varied based on the variation of the position or angle of the first mirror.

17. In paragraph 15, The above signal processing device, A vehicle display device that controls the size of the first projection image projected on the screen or the size of the second projection image reflected on the windshield by varying the height of the lower portion of the first mirror.

18. In paragraph 15, The above signal processing device, A vehicle display device that controls the display of only the first projection image on the screen and prevents the second projection image from being projected onto the windshield.

19. In paragraph 15, The above signal processing device, A vehicle display device that controls so that only the second projection image is displayed on the windshield and the first projection image is not displayed on the screen.

Images