Display System

Abstract

To provide a display system which enables a state of a seat and a projection position of a projector to be linked without providing a large scale device at a vehicle interior.SOLUTION: A display system 1 includes: a seat S which is provided at a vehicle interior 2 and configured to be at least partially movable; a projector 30 which is provided at the vehicle interior and can project images on a wall surface 3 at the vehicle interior; and a control part 40 which acquires a state of the seat and controls a projection position of the projector. The control part changes the projection position of the projector in accordance with the state of the seat.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a display system, and more particularly to a display system including a projection device that is linked to the state of a seat in a vehicle. [Background technology]

[0002] Conventionally, a display system is known in which a monitor is attached to the roof to display images inside a vehicle. Patent Document 1 discloses a display that uses a sensor to determine the position of a vehicle seat and automatically adjusts the position of the vehicle display based on the position. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2015-098317 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the display system described in Patent Document 1, in order to change the position of the display while supporting the display itself, it is necessary to provide a large-scale device for moving the display inside the vehicle, such as a rail on the roof. However, there is a problem in that the cost is high when a large-scale device for mounting the display is separately installed inside the vehicle. There has been a demand for a system that displays images inside the vehicle in a simpler way.

[0005] The present invention has been made in consideration of the above problems, and aims to provide a display system in which the state of the seat is linked to the display position of the image without the need to install large-scale equipment inside the vehicle. [Means for solving the problem]

[0006] The above problem is solved by a display system according to the present invention, which includes a seat provided in a vehicle and at least a portion of which is movable, a projection device provided in the vehicle and capable of projecting an image onto a wall surface in the vehicle, and a control unit that acquires a state of the seat and controls a projection position of the projection device. a center console disposed on one side of the seat; and a switch for operating the projection device on an upper surface of the center console. Equipped with The projection device is provided in the center console, and the projection device and the switch are arranged side by side in the front-rear direction of the vehicle in a side view. This is solved by:

[0007] In the display system of the present invention, a projection device capable of projecting an image onto a wall surface inside a vehicle is used as a display device for an image. Also, a control unit acquires the state of the seat and , throw Projection position of the imaging device Place Therefore, for example, a large-scale device for supporting the display in the vehicle is not required. ,table It is possible to provide a display system.

[0008] At this time, The seat has a seat back portion, and the switch is disposed forward of a front end of the seat back portion and rearward of a front end of the center console when the seat back portion is in an upright state. good.

[0010] The seat includes a seat cushion portion connected to the seat back portion, an ottoman portion supported at a front end of the seat cushion portion, and a seat rotation mechanism that rotates the seat around an axis in the vertical direction of the seat, and the front end portion of the center console is provided forward of the front end portion of the seat rotation mechanism and rearward of the front end portion of the ottoman portion. good.

[0012] The seat cushion section includes a lifting section that is rotatable so that a front end portion of the seat cushion section moves up and down, and an inclination angle of the seat cushion section can be changed by the lifting section, and the control section changes a projection angle of the projection device based on the inclination angle of the seat cushion section. good.

[0014] A front end of the projection device is provided rearward of a rear end of the ottoman portion in a front-rear direction of the vehicle, and the control unit operates the projection device based on a state of the seat. good 。

[0015] The center console is provided on a vehicle body floor, and when the ottoman section is deployed, a front end portion of the center console is located forward of a rear end of the ottoman section and rearward of the front end of the ottoman section in a side view. good 。

[0016] The ottoman portion is extendable in length from a base end supported by the seat cushion portion to a tip end which is a free end. good 。

[0017] The seat back portion is switchable between a reclined position and an upright position, and when the seat back portion is in the reclined position, the front end portion of the center console is disposed rearward of the front end of the seat cushion portion, and when the seat back portion is in the upright position, the front end portion of the center console is disposed forward of the front end of the seat cushion portion. good 。

[0018] The seat includes a headrest attached to the seat back and a headrest moving mechanism for moving the headrest up and down relative to the seat back, and the control unit changes the projection position of the projection device in accordance with the state of the seat. good 。

[0019] The control unit is provided below an upper end of the seat rotation mechanism and above a lower end of the seat rotation mechanism. good 。 Effect of the Invention

[0020] According to the display system of the present invention, it is possible to provide a display system that links the state of the seat in which the occupant is seated with the projection position, without providing a large-scale device for supporting a display inside the vehicle. In addition, the projection position of the projection device can be changed to an optimal position for the occupant depending on the deformation and position of the seat. Furthermore, by making the projection device movable, the projection position can be changed to the optimal position for the occupant. By providing the projection device in the headrest section, it becomes easier to project the image onto the roof of the vehicle cabin. By providing the projection device in the center console, the projection device is positioned approximately in the center of the vehicle, making it possible to project the image over a wide area inside the vehicle. Furthermore, by the control unit arbitrarily setting which of multiple seats the operation of the projection device should be synchronized with, it is possible to project the image in the optimal position for a person who needs to follow. In addition, by moving the wall surface onto which the image is projected, the image can be displayed at an angle that is easy for passengers to see. [Brief description of the drawings]

[0021] [Figure 1] FIG. 1 is a side view illustrating a display system according to an embodiment of the present invention. [Diagram 2] FIG. 1 is a plan view illustrating a display system according to an embodiment of the present invention. [Diagram 3] FIG. 2 is a side view showing the display system with the seat reclined. [Figure 4] FIG. 2 is a diagram illustrating an ECU and an object controlled by the ECU. [Diagram 5] FIG. 11 is a flow diagram for controlling a projector in conjunction with the operation of a sheet. [Figure 6] FIG. 11 is a side view showing another example of the display system, showing a case where a projection device is attached to a headrest. [Figure 7] FIG. 7 is an enlarged view of the headrest shown in FIG. 6. [Figure 8]FIG. 11 is a side view showing another example of the display system, showing a case where a projector is attached to the front seat. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] Hereinafter, an image display system for a vehicle according to an embodiment of the present invention will be described with reference to FIGS. The embodiment described below is merely an example for facilitating understanding of the present invention, and is not intended to limit the present invention. In other words, the shapes, dimensions, arrangements, and other aspects of the components described below may be modified or improved without departing from the spirit of the present invention, and the present invention naturally includes equivalents thereof.

[0023] This embodiment relates to a display system comprising a seat provided inside a vehicle and configured to be at least partially movable, a projection device provided inside the vehicle and capable of projecting images onto a wall surface inside the vehicle, and a control unit that acquires the state of the seat and controls the projection position of the projection device, wherein the projection device changes the projection position of the projection device in accordance with the state of the seat.

[0024] In the following description, the "front-rear direction" refers to the front-rear direction when viewed from an occupant (sometimes called a seated person) of the vehicle seat S as shown in Fig. 1, and is the direction that coincides with the direction in which the vehicle travels. The "seat width direction" refers to the width direction of the vehicle seat S as shown in Fig. 2, and is the direction that coincides with the left-right direction when viewed from an occupant of the vehicle seat S. Additionally, the "up-down direction" refers to the height direction of the vehicle seat S, and is the direction that coincides with the up-down direction when viewed from the side of the vehicle seat S as shown in Fig. 1.

[0025] First, the configuration of a vehicle seat S will be described with reference to Fig. 1 to Fig. 4. The vehicle seat S is a seat in which an occupant H can be seated in a vehicle. The following description will focus on the rear seat S2 disposed at the rear of the vehicle, but the front seat S1 disposed at the front has the same configuration. The vehicle seat S according to this embodiment can be transformed into at least two states, from an upright position (see FIG. 1) in which the seat back portion 10 is upright, to a reclined position (see FIG. 2) in which the seat back portion 10 is tilted backward. When the vehicle seat S is in the upright position, the occupant H takes a normal standing position (e.g., a driving position) with respect to the vehicle seat S. On the other hand, when the vehicle seat S is in the reclined position, the occupant H takes a neutral position with respect to the vehicle seat S.

[0026] As shown in Figures 1 to 3, the display system 1 includes a vehicle seat S in which an occupant H is seated, a projector 30 that projects an image 31 onto a wall surface inside the vehicle, and an ECU 40 (Electronic Control Unit) as a control unit that controls the operation of each part of the vehicle seat S.

[0027] The projector 30 is attached to a center console 5 provided on the side of a vehicle seat S. The projector 30 can project an image by itself by changing the direction of the lens. It is possible to change the projection position, angle, etc. Also, the projector 30 body is attached to a projector moving mechanism 32, so that the vertical angle and horizontal angle of the projector 30 with respect to the vehicle can be changed.

[0028] The vehicle seat S includes a seat back portion 10, a seat cushion portion 11, an ottoman portion 12, a headrest portion 13, and a seat support portion 19. It also includes a reclining mechanism 15 that tilts the seat back portion 10, and a tilt mechanism 16 that tilts the seat cushion portion 11. The seat support portion 19 also includes a seat sliding mechanism 20 that moves the vehicle seat S in the front-rear or left-right direction, and a seat rotation mechanism 24 that rotates the vehicle seat S around an axis in the up-down direction.

[0029] The seat back portion 10 supports the back of the occupant H from behind, and is configured by supporting a cushioning material on a frame (not shown) and covering the cushioning material with a skin.

[0030] The seat back portion 10 according to this embodiment is divided into upper and lower portions, and has a seat back upper portion 10a and a seat back lower portion 10b. The seat back upper portion 10a supports a portion of the back of the occupant H that is at the same height as the chest. The seat back lower portion 10b supports a portion of the back of the occupant H that extends from the abdomen to the waist. Further, the seat back portion 10 can be moved (strictly speaking, rotated) by a reclining mechanism 15 so as to be tilted backward with respect to the seat cushion portion 11, that is, can be reclined.

[0031] The reclining mechanism 15 is a mechanism that moves (rotates) the seat back portion 10 so as to change the angle at which the seat back portion 10 is reclined relative to the vehicle (reclining angle α), and is realized, for example, by driving a motor (not shown). When the reclining mechanism 15 operates, the seat back portion 10 rotates about an axis member that connects the seat back portion 10 and the seat cushion portion 11. The motor provided in the reclining mechanism 15 is provided with a Hall IC, which outputs a pulse every time the motor rotates once. The pulse is received by the ECU 40, and the reclining angle α of the seat back portion 10 can be measured.

[0032] The seat cushion portion 11 supports the buttocks of the occupant H from below, and is configured by placing a cushioning material on a frame (not shown) and covering the cushioning material with a skin. The rear end of the seat cushion portion 11 is connected to the lower end of the seat back portion 10 (strictly speaking, the lower end of the seat back lower portion 10b) via a shaft extending along the seat width direction.

[0033] Moreover, the seat cushion portion 11 according to this embodiment can be rotated by the tilt mechanism 16 so that the front end portion can be raised and lowered in the vertical direction.

[0034] The tilt mechanism 16 is a mechanism for moving (rotating) the seat cushion part 11 so that the front end part of the seat cushion part 11 moves up and down, and is configured by, for example, a jack-type electric lift mechanism. When the tilt mechanism 16 operates, the front end of the seat cushion part 11 rotates relative to the rear end of the seat cushion part 11. A Hall IC is provided in the motor that drives the tilt mechanism 16, and a pulse is output every time the motor rotates once. The output pulse is received by the ECU 40, and it is possible to measure the angle at which the seat cushion part 11 is tilted with respect to the vehicle floor F (tilt angle β).

[0035] The ottoman portion 12 supports the lower legs of the occupant H from below, and is configured by placing a cushioning material on a frame board (not shown) and covering the cushioning material with a skin. The ottoman portion 12 is supported at the front end portion of the seat cushion portion 11 via a rotation shaft extending along the seat width direction. In other words, the ottoman portion 12 is rotatable around the rotation shaft.

[0036] The ottoman section 12 moves between the deployed position and the stored position by rotating. The stored position is the position of the ottoman section 12 when not in use, and is the position when the ottoman section 12 hangs down and the tip end (free end) of the ottoman section 12 is closest to the seat cushion section 11. The deployed position is the position when the ottoman section 12 is used (more simply, a position where the ottoman section 12 can support the lower legs of the occupant), and is the position when the ottoman section 12 protrudes forward of the front end of the seat cushion section 11.

[0037] In addition, the ottoman section 12 is extendable in length (hereinafter, the total length) from the base end supported by the seat cushion section 11 to the tip end, which is the free end. In other words, the ottoman section 12 is configured so that the total length is shortest when in the stored position and gradually increases as it approaches the deployed position.

[0038] In this embodiment, the headrest portion 13 can be moved up and down with respect to the seat back portion 10 by a headrest moving mechanism (not shown). That is, in this embodiment, the position where the occupant's head is supported can be changed according to the movement of the headrest portion 13 by the headrest moving mechanism.

[0039] The seat support part 19 is a device that supports the vehicle seat S from below, and is attached to the lower part of the seat cushion part 11. Specifically, the seat support part 19 is configured by covering a frame member that connects the vehicle seat S to the seat slide mechanism 20 and the seat rotation mechanism 24 with a cover member. An ECU 40 serving as a control part that controls each part of the vehicle seat S is accommodated inside the seat support part 19. Of course, the ECU 40 is not limited to being accommodated in the seat support part 19, and may be accommodated inside the seat back part 10, the seat cushion part 11, or the like, or may be attached externally to the vehicle seat S.

[0040] The seat slide mechanism 20 is a mechanism for sliding the vehicle seat S in the front-rear and left-right directions relative to the vehicle body floor F. The seat slide mechanism 20 includes an upper rail 21, a lower rail 22, and a slide motor for sliding the upper rail 21 relative to the lower rail 22. A Hall IC is also attached to the slide motor, and a pulse is output each time the motor rotates once.

[0041] The upper rails 21 are fixed to the vehicle seat S via the seat support parts 19, and the lower rails 22 are fixed to the vehicle floor F. By operating the slide motor to slide the upper rails 21 back and forth or left and right relative to the lower rails 22, the vehicle seat S, i.e., the seat back part 10, the seat cushion part 11, the headrest part 13 and the ottoman part 12, can be moved back and forth or left and right relative to the vehicle floor F as a whole.

[0042] The seat rotation mechanism 24 is a mechanism for rotating the vehicle seat S about a vertical axis relative to the vehicle floor F. The seat rotation mechanism 24 is equipped with a seat rotation motor. A Hall IC is also attached to the seat rotation motor, which outputs a pulse every time the motor rotates once. The pulse is received by the ECU 40, which makes it possible to measure the rotation angle of the vehicle seat S relative to the vehicle movement direction.

[0043] The vehicle seat S also includes an operation switch 25. The operation switch 25 is provided on a side of the seat cushion portion 11 of the vehicle seat S, and is an operation portion for instructing a change in posture of the vehicle seat S. For example, the operation switch 25 may include a first switch for changing the posture of the vehicle seat S from an upright posture to a reclined posture, and a second switch for changing the posture of the vehicle seat S from the reclined posture to an upright posture.

[0044] The ECU 40 is a control unit that controls the reclining mechanism 15, tilt mechanism 16, seat slide mechanism 20, seat rotation mechanism 24, projector 30, and projector moving mechanism 32. The ECU 40 also receives pulses from motors provided in the reclining mechanism 15, tilt mechanism 16, seat slide mechanism 20, seat rotation mechanism 24, and projector moving mechanism 32 (hereinafter, may be collectively referred to as moving mechanisms). As shown in FIG. 3, the ECU 40 includes a processor 41, a memory 42, and an input / output interface 43.

[0045] The processor 41 is a central processing unit that executes various types of arithmetic processing based on programs and data stored in the memory 42 and signals received from each device connected via the input / output interface 43, and also controls each part of the display system 1. The memory 42 is, for example, a semiconductor memory, and in addition to storing various programs and data, it also functions as a work memory for the processor 41. The input / output interface 43 is connected to the reclining mechanism 15, the tilt mechanism 16, the seat sliding mechanism 20, the seat rotating mechanism 24, the projector 30, the projector moving mechanism 32, and the operation switch 25, and communicates with each device.

[0046] As described above, the vehicle seat S is provided with the position-changing operation switch 25. The operation switch 25 is a push-button type switch provided on the door or armrest of the vehicle, and is operated when an occupant seated in the vehicle seat S changes the position of the seat back portion 10 or the like. In this embodiment, the posture of the vehicle seat S is switched by turning the operation switch 25 ON / OFF, but while the operation switch 25 is pressed, the reclining mechanism 15 operates and the seat back portion 10 gradually tilts to suit the preference of the occupant H. The seat cushion 11 also includes a projection start switch 34. By pressing the projection start switch 34, the projector 30 starts projecting an image. At this time, the ECU 40 determines the state of the vehicle seat S, for example, whether it is in a reclined position or an upright position. Specifically, the ECU 40 acquires the reclining angle α of the seat back 10, the inclination angle β of the seat cushion 11, and the height h of the seat cushion 11 based on information on the rotation speed of the motors of each movable mechanism, and calculates the projection angle θ (angle θ between the vehicle floor F and the projection axis 33) at which the projector 30 projects the image from the information.

[0047] At this time, the projection angle θ of the projector 30 is set based on a correspondence table in which the tilt angle α and the optimal projection angle θ of the projector corresponding to the tilt angle α are recorded, for example, as shown in Table 1. For example, when the tilt angle is 75°, the projection angle θ of the projector is set to 15°. Basically, the projection angle θ is determined so that the image is positioned in the line of sight of the occupant H when seated. For this reason, for example, in an upright position as shown in Fig. 1, the image may be projected onto the front seat S1 in front, and in a reclined position as shown in Fig. 2, the image may be projected onto a screen 4 provided on the roof 3. Based on the set value of the projection angle θ, the ECU 40 moves the projector 30 or the projector moving mechanism 32 to set the projector at an optimal projection angle, and determines the display position of the image 31. [Table 1]

[0048] In the above example, the projection angle θ is calculated based on a correspondence table between the reclining angle α and the projection angle θ, but the projection angle θ of the projector 30 may be calculated based on a correspondence table that includes the inclination angle β of the seat cushion portion 11 and the height h of the seat cushion, which is previously determined. Also, the projection angle θ may be calculated based on the position and rotation angle of the entire vehicle seat S to determine the display position of the image. In this case, the entire projector 30 may rotate not only vertically but also horizontally.

[0049] Hereinafter, with reference to FIG. 5, a process of the display system 1 from when the projection start switch 34 is pressed until the projector 30 determines the display position of the image 31 will be described.

[0050] First, when the occupant H presses the projection start switch 34, the ECU 40 starts the image projection process by the projector 30. Then, the ECU 40 acquires the state of the vehicle seat S that synchronizes the operation of the projector 30 and the state of the projection angle θ of the projector 30 (S101).

[0051] Next, it is determined whether the state of the vehicle seat S has changed from the state at the time when the projection by the projector 30 was terminated last time (S102). If the state of the vehicle seat S has not changed, for example, if the state was not changed from an upright state last time and is also in an upright state this time (No), there is no need to change the projection angle θ of the projector 30, and the process of changing the projection angle θ of the projector 30 is terminated.

[0052] In step 102, if the ECU 40 determines that there has been a change in the state of the vehicle seat S (Yes in step 102), the ECU 40 uses the correspondence table stored in the memory 42 to determine the optimal projection angle θ of the projector 30 based on the state of the vehicle seat S after the change, for example, the reclining angle α (S103).

[0053] Next, the ECU 40 operates or moves the projector 30 using the projector 30 or the projector moving mechanism 32 so that the projection angle θ of the projector 30 becomes the angle obtained in step 103 (S104). By using the ECU 40 in this manner, the projection angle θ of the projector 30 can be set in accordance with the state of the vehicle seat S, and the display position of the image 31 is determined.

[0054] Next, a display system 601, which is another example, will be described with reference to Figs. 6 and 7. In the display system 1 shown in Figs. 1 to 3, the projector 30 is disposed in the center console 5, but in the display system 601 shown in Fig. 6, the projector 630 is mounted on the headrest portion 613 where the occupant H sits. As shown in Fig. 7, the projection angle θ is changed by the projection portion 635 of the projector 630 rotating about an axis in the width direction. By providing the projector 630 on the headrest portion 613, an image is displayed on the roof inside the vehicle. Other than the structure of the projector 630, the display system is the same as the display system 1 shown in Fig. 1, and therefore detailed description of the other configurations will be omitted.

[0055] Next, a display system 801 as another example will be described with reference to Fig. 8. In the display system 1 shown in Figs. 1 to 3, the projector 30 is disposed in the center console 5, but in the display system 801 shown in Fig. 8, the projector 830 is provided in the seat back portion 10 of the front seat S1 provided in front of the rear seat S2 in which the occupant H sits. When the rear seat S2 is in an upright position, the projector 830 provided in the seat back portion 10 of the front seat S1 may project an image onto the headrest portion 13 of the front seat S1. When the vehicle seat S is in a reclined position, the projector 830 may project an image onto a screen 4 provided on the roof 3.

[0056] In the display system 1 shown in this embodiment, the projection image is projected onto the rear surface of the seat back of the front seat S1 or onto the roof, but the position onto which the image is projected is not limited to this and may be onto a window or a door. In addition, the projector 30 is provided in the center console 5, the headrest portion 13, and the seat back portion 10, but the location where the projector 30 is installed is not limited to this, and the projector 30 may be installed in the armrest of the vehicle seat S.

[0057] A plurality of projectors may be installed in the vehicle interior, and the ECU 40 may set a vehicle seat to follow each projector.

[0058] In the above embodiment, a display system used in an automobile has been described as a specific example, but the present invention is not limited to this, and the display system of the present application can be installed in trains, buses, etc., and can also be used in airplanes, ships, etc.

[0059] In this embodiment, the display system according to the present invention has been mainly described. However, the above embodiment is merely an example for facilitating understanding of the present invention, and does not limit the present invention. The present invention can be modified and improved without departing from the spirit thereof, and the present invention naturally includes equivalents. In particular, the shape, arrangement, and configuration of the through-holes described in the above embodiment are merely an example, and do not limit the present invention. [Explanation of symbols]

[0060] 1, 601, 801 Vehicle display system (display system) 2. Inside the car 3. Roof 4 Screens 5. Centre console 10 Seat back section 10a Upper part of seat back 10b Lower part of seat back 11 Seat cushion section 12 Ottoman section 13, 613 Headrest section 15 Reclining mechanism 16 Tilt mechanism 19 Seat support 20 Seat slide mechanism 21 Upper Rail 22 Lower rail 24 Seat rotation mechanism 25 Operation switch 30, 630, 830 Projector (Projection Device) 31 Projected Images 32 Projector movement mechanism 33 Projector's projection axis 34 Projection start switch 635 Projection section 40 ECU 41 Processor (control unit) 42 Memory (storage section) 43 Input / Output Interface F Body floor S Vehicle seat S1 Front seat S2 Rear seat α Inclination angle β Tilt angle θ Projection angle H Crew

Claims

1. A seat provided in a vehicle interior and at least a portion of which is movable; a projection device provided in the vehicle and capable of projecting an image onto a wall surface in the vehicle; a control unit that acquires a state of the sheet and controls a projection position of the projection device; A center console disposed to the side of the seat; a switch for operating the projection device on an upper surface of the center console, the projection device is provided in the center console, A display system, characterized in that, in a side view, the projection device and the switch are arranged side by side in a fore-and-aft direction of the vehicle.

2. The seat has a seat back portion, 2. The display system according to claim 1, wherein the switch is disposed forward of a front end of the seat back portion and rearward of a front end of the center console when the seat back portion is in an upright position.

3. The seat includes a seat cushion portion connected to the seat back portion, an ottoman portion supported at a front end of the seat cushion portion, and a seat rotation mechanism that rotates the seat about an axis in a vertical direction of the seat, 3. The display system according to claim 2, wherein a front end of the center console is provided forward of a front end of the seat rotating mechanism and rearward of a front end of the ottoman portion.

4. the seat cushion portion includes a lifting portion that is rotatable so that a front end portion of the seat cushion portion can be raised and lowered in a vertical direction, The lifting / lowering unit is capable of changing the inclination angle of the seat cushion unit, The display system according to claim 3 , wherein the control unit changes a projection angle of the projection device based on the inclination angle of the seat cushion unit.

5. a front end portion of the projection device is provided rearward of a rear end portion of the ottoman portion in a front-rear direction of the vehicle, The display system according to claim 4 , wherein the control unit operates the projection device based on a state of the seat.

6. The display system according to claim 5, characterized in that the center console is provided on a vehicle floor, and when the ottoman portion is deployed, the front end portion of the center console is located forward of the rear end of the ottoman portion in a side view and is located rearward of the front end of the ottoman portion.

7. The display system according to claim 6, wherein the ottoman portion is extendable in length from a base end supported by the seat cushion portion to a tip end serving as a free end.

8. The seat back portion is switchable between a reclined position and an upright position, The display system according to claim 7, characterized in that, when the seat back portion is in the reclined position, the front end portion of the center console is positioned rearward of the front end of the seat cushion portion, and, when the seat back portion is in the upright position, the front end portion of the center console is positioned forward of the front end of the seat cushion portion.

9. The seat includes a headrest portion attached to the seat back portion and a headrest moving mechanism portion that moves the headrest portion up and down relative to the seat back portion, The display system according to claim 8 , wherein the control unit changes the projection position of the projection device in accordance with a state of the seat.

10. 4. The display system according to claim 3, wherein the control unit is provided below an upper end of the seat rotation mechanism and above a lower end of the seat rotation mechanism.

Images