Vehicle

Abstract

A vehicle is provided with a transparent display having variable transmittance disposed between a rear seat and a front seat, the transparent display playing a prescribed video content having at least a first stage, a second stage after the first stage, a third stage after the second stage, and a fourth stage after the third stage. The variable transmittance of the transparent display is a first transmittance at a start portion of the first stage, and the variable transmittance of the transparent display is a second transmittance smaller than the first transmittance at an end portion of the first stage.

Description

Technical Field

[0001] The present disclosure relates to a vehicle. Background Art

[0002] Conventionally, a display device with variable light transmittance is known. For example, Patent Document 1 discloses a display device that is disposed in a vehicle compartment and includes: a transparent display that displays an information image on a display surface that allows light to pass through; and a light-shielding display that displays a light-shielding image that can adjust the light transmittance, wherein the display device obtains the intensity of direct light directed toward the transparent display, and the stronger the direct light, the lower the transmittance of the light-shielding image is adjusted.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2020-79917 Summary of the invention

[0006] Problem that the invention aims to solve

[0007] For example, a person sitting in the back seat of a vehicle may want to take a short break to recover from physical and mental fatigue. However, the back seat of a conventional vehicle is not designed for the purpose of recovering from physical and mental fatigue.

[0008] An object of the present disclosure is to provide a technology for assisting a person sitting in a back seat of a vehicle to recover from physical and mental fatigue.

[0009] Solutions for solving problems

[0010] One aspect of the present disclosure provides a vehicle, the vehicle comprising at least:

[0011] A first wheel connected to the vehicle body;

[0012] A second wheel connected to the vehicle body;

[0013] A third wheel connected to the vehicle body; and

[0014] a fourth wheel connected to the vehicle body,

[0015] The vehicle can travel in a predetermined direction using the first wheel, the second wheel, the third wheel, and the fourth wheel.

[0016] The vehicle body comprises:

[0017] a bottom surface portion and a top surface portion, wherein the bottom surface portion and the top surface portion are arranged along the specified direction;

[0018] a left side surface connecting the bottom surface and the top surface and arranged on the left side along the specified direction;

[0019] a right side face portion connecting the bottom face portion and the top face portion and arranged on the right side along the specified direction;

[0020] a front portion connecting the bottom portion and the top portion and arranged at the front in the specified direction;

[0021] a rear surface portion connecting the bottom surface portion and the top surface portion and arranged at the rear portion in the prescribed direction;

[0022] at least one front seat disposed on the bottom surface portion at a position closer to the front surface portion than to the rear surface portion; and

[0023] at least one rear seat arranged on the bottom surface portion at a position closer to the rear surface portion than to the front surface portion,

[0024] The front portion includes glass that enables visual confirmation of the outside of the vehicle from the front seat toward the predetermined direction.

[0025] The vehicle body is further provided with a transparent display having a variable transmittance between the rear seat and the front seat.

[0026] The outside of the vehicle can be visually confirmed from the rear seat through the transparent display and the glass.

[0027] The transparent display is set to play specified video content,

[0028] The prescribed video content has at least a first stage, a second stage after the first stage, a third stage after the second stage, and a fourth stage after the third stage.

[0029] At the beginning of the first phase, the variable transmittance of the transparent display is a first transmittance,

[0030] At the end of the first phase, the variable transmittance of the transparent display is a second transmittance that is smaller than the first transmittance.

[0031] In addition, these general or specific methods may be implemented by a system, an apparatus, a method, an integrated circuit, a computer program or a recording medium, or may be implemented by any combination of systems, apparatuses, methods, integrated circuits, computer programs and recording media.

[0032] Effects of the Invention

[0033] According to the present disclosure, it is possible to assist a person sitting in a back seat of a vehicle to recover from physical and mental fatigue. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 The figure shows a configuration example of the vehicle according to the first embodiment, and is a plan view showing the interior of the vehicle from above.

[0035] Figure 2 The figure shows a configuration example of the vehicle according to the first embodiment, and is a side view showing the interior of the vehicle from a lateral perspective.

[0036] Figure 3 This figure shows a configuration example of a vehicle according to the first embodiment, and is a diagram viewed from the rear seat in the vehicle.

[0037] Figure 4 This is a block diagram showing a configuration example of the fatigue recovery support system according to the first embodiment.

[0038] Figure 5 This is a graph showing an example of changes in the transmittance of the transparent display in each stage according to the first embodiment.

[0039] Figure 6 FIG. 1 is a diagram showing a first example of video content displayed on the transparent display in the first stage according to the first embodiment.

[0040] Figure 7 FIG. 2 is a diagram showing a second example of video content displayed on the transparent display in the first stage according to the first embodiment.

[0041] Figure 8 This is a diagram showing a first example of video content displayed on the transparent display in the third stage according to the first embodiment.

[0042] Fig. 9 This is a diagram showing a second example of video content displayed on the transparent display in the third stage according to the first embodiment.

[0043] Fig.10 This is a diagram showing an example of video content displayed on the transparent display in the first stage when a light-adjusting film is provided on a rear door window according to the second embodiment.

[0044] Fig.11 This is a diagram showing an example of video content displayed on the transparent display in the first stage when a shade is provided on the rear door window according to the second embodiment.

[0045] Fig.12 This is a diagram for explaining the time interval of scene switching in the third stage involved in Implementation Example 2. DETAILED DESCRIPTION

[0046] Below, the embodiments of the present disclosure are described in detail with appropriate reference to the drawings. However, sometimes an overly detailed description is omitted. For example, sometimes a detailed description of a well-known matter and a repeated description of a substantially identical structure are omitted. This is to avoid the following description from becoming unnecessarily lengthy so that it is easy for those skilled in the art to understand. In addition, the attached drawings and the following description are provided to enable those skilled in the art to fully understand the present disclosure, and it is not intended to limit the subject matter described in the claims through these.

[0047] (Implementation Method 1)

[0048] <Vehicle Structure>

[0049] Figure 1 The figure shows a configuration example of the vehicle 1 according to the first embodiment, and is a plan view showing the interior of the vehicle from above. Figure 2 The figure shows a configuration example of the vehicle 1 according to the first embodiment, and is a side view showing the interior of the vehicle from a lateral perspective. Figure 3 FIG. 1 shows a configuration example of the vehicle 1 according to the first embodiment, and is a diagram showing the front side viewed from the rear seat 22 in the vehicle. Figure 1 , Figure 2 as well as Figure 3 The structure of the vehicle 1 will be described.

[0050] In addition, for the sake of convenience, Figure 1 and Figure 2 As shown, the entire length direction of the vehicle 1 is set as the Y axis, the width direction of the vehicle 1 is set as the X axis, and the height direction of the vehicle 1 is set as the Z axis. In addition, for the convenience of explanation, the positive direction of the Z axis is sometimes referred to as "up", the negative direction of the Z axis is referred to as "down", the positive direction of the Y axis is referred to as "front", the negative direction of the Y axis is referred to as "back", the positive direction of the X axis is referred to as "right", and the negative direction of the X axis is referred to as "left". In addition, these expressions related to directions are used for the convenience of explanation and are not intended to limit the posture of the structure when it is actually used.

[0051] The vehicle 1 includes at least a body 2 and a first wheel 3A, a second wheel 3B, a third wheel 3C, and a fourth wheel 3D connected to the body 2, and can travel in a predetermined direction (for example, the direction of the Y axis) using the first wheel 3A, the second wheel 3B, the third wheel 3C, and the fourth wheel 3D. However, the vehicle 1 is not limited to a structure with four wheels, and may also be a structure with two or three wheels, or five or more wheels. In addition, the vehicle 1 may also be a private car, a commercial vehicle, a taxi, a truck, or a bus.

[0052] The vehicle body 2 includes a bottom surface portion 11 and a top surface portion 12 which are arranged along a predetermined direction.

[0053] The vehicle body 2 includes a left side surface 13 connecting the bottom surface 11 and the top surface 12 and arranged on the left side along a predetermined direction, and a right side surface 14 connecting the bottom surface 11 and the top surface 12 and arranged on the right side along a predetermined direction.

[0054] The vehicle body 2 includes a front surface portion 16 connecting the bottom surface portion 11 and the top surface portion 12 and disposed at the front portion 15 in a predetermined direction, and a rear surface portion 18 connecting the bottom surface portion 11 and the top surface portion 12 and disposed at the rear portion 17 in a predetermined direction.

[0055] Vehicle body 2 includes at least one front seat 21 disposed on bottom surface 11 closer to front surface 16 than rear surface 18 , and at least one rear seat 22 disposed on bottom surface 11 closer to rear surface 18 than front surface 16 .

[0056] The front portion 16 includes a front window 4 of glass that enables visual confirmation of the outside of the vehicle from the front seat 21 in a predetermined direction.

[0057] The vehicle body 2 also has a rectangular transparent display 102 between the rear seat 22 and the front seat 21. The transparent display 102 is arranged in a manner that the long side direction of the rectangle is along the horizontal direction (X-axis direction). The transparent display 102 has at least a self-luminous display 103 and a dimming film 104 with a variable light transmittance. The dimming film can also be replaced by a sheet. In the following, in order to make the description easier to understand, it is sometimes described as changing the transmittance of the transparent display 102, but this can also be replaced by changing the transmittance of the dimming film 104. As examples of the self-luminous display 103, an organic EL display or an LED display can be cited.

[0058] The user sitting in the rear seat 22 can visually check the outside of the vehicle through the transparent display 102 and the front window 4 .

[0059] The transparent display 102 is set to play a predetermined video content. In this embodiment, the video content is set as a dynamic image for description, but the video content may also be a static image. In addition, the details of the video content will be described later.

[0060] The vehicle 1 includes a front room 23 in which the front seats 21 are arranged and a rear room 24 in which the rear seats 22 are arranged. The vehicle 1 further includes a partition wall 31 provided to partition the front room 23 from the rear room 24, and the transparent display 102 is arranged on the partition wall 31.

[0061] The vehicle 1 includes a light emitting unit 107 capable of adjusting light color and light intensity in the vehicle. The light emitting unit 107 is disposed on at least one of the rear compartment side surface 32 of the partition wall 31 on the rear compartment 24 side, the bottom surface 11 connected to the rear compartment 24, the top surface 12 connected to the rear compartment 24, the rear surface 18 connected to the rear compartment 24, the left side surface 13 connected to the rear compartment 24, and the right side surface 14 connected to the rear compartment 24. Figure 3 1 shows a part of the light emitting unit 107. As an example of the light emitting unit 107, an LED (Light Emitting Diode) lamp can be given.

[0062] The vehicle 1 includes a fragrance generating unit 108 that generates fragrance. The fragrance generating unit 108 is provided, for example, in the rear compartment 24. An example of the fragrance generating unit 108 is a fragrance diffuser. Details of the fragrance generated by the fragrance generating unit 108 will be described later.

[0063] The vehicle 1 is provided with a speaker 106 in the rear room 24 inside the vehicle. Figure 3 As shown, speakers 106 may be provided at the upper and lower parts of the transparent display 102, respectively. In addition, speakers 106 (not shown) may also be provided at the rear seat 22. At least a portion of the speakers 106 provided (e.g., speakers 106 provided at the rear seat 22) may be tweeters. At least a portion of the speakers 106 provided may also be woofers.

[0064] The vehicle 1 is provided with an operation unit 109 near the rear seat 22 in the vehicle. The operation unit 109 may be a tablet terminal provided in the vehicle. Alternatively, the operation unit 109 may be a smartphone held by a user connected to the vehicle 1 by wire or wirelessly. In addition, the details of the operations that the user can perform through the operation unit 109 will be described later.

[0065] <System Structure>

[0066] Figure 4 This is a block diagram showing a configuration example of the fatigue recovery support system according to the first embodiment.

[0067] The fatigue recovery assistance system according to the first embodiment mounted on the vehicle 1 includes an ECU 100, an IVI system 101, a transparent display 102, a self-luminous display 103, a dimming film 104, an amplifier 105, a speaker 106, a light-emitting unit 107, a fragrance generating unit 108, and an operating unit 109. ECU is an abbreviation of Electronic Control Unit. They can send and receive information via a vehicle network 110, for example. Examples of the vehicle network 110 include CAN (Controller Area Network), LIN, or FlexRay.

[0068] The transparent display 102, the self-luminous display 103, the dimming film 104, the speaker 106, the light-emitting unit 107, the flavor generating unit 108, and the operating unit 109 have been described above, so the description thereof is omitted here.

[0069] The amplifier 105 amplifies the audio signal output from the speaker 106. The amplifier 105 can support high resolution. Thus, the speaker 106 can output audio with higher sound quality.

[0070] IVI is an abbreviation of “In-Vehicle Infotainment”, which is a coined word combining information and entertainment. The IVI system 101 is a system that provides information and entertainment to passengers through electronic devices installed in the vehicle 1 .

[0071] The ECU 100 receives information from the IVI system 101 via the vehicle network 110, or transmits a command to the IVI system 101. In addition, the number of ECUs 100 mounted in the vehicle 1 is not limited to one, and a plurality of ECUs may be provided.

[0072] In addition, ECU 100 may include a non-volatile memory. Video content may be stored in the memory. The memory may store content about audio output from the speaker 106 in conjunction with the video content (hereinafter referred to as audio content). Content for changing the transmittance of light of the dimming film 104 in conjunction with the video content (hereinafter referred to as dimming content) may also be stored in the memory. Content for causing the light-emitting unit 107 to emit light in conjunction with the video content (hereinafter referred to as light-emitting content) may also be stored in the memory. Content for generating a fragrance from the fragrance generating unit 108 in conjunction with the video content (hereinafter referred to as fragrance content) may also be stored in the memory. These contents may be pre-stored in the memory. In addition, these contents may also be appropriately updated.

[0073] The ECU 100 performs processing for playing video content and displaying it on the transparent display 102. The ECU 100 performs processing for transmitting audio content to the amplifier 105 and outputting the audio content from the speaker 106 in conjunction with the playing of the video content. The ECU 100 performs processing for changing the transmittance of the transparent display 102 based on the dimming content in conjunction with the playing of the video content. The ECU 100 performs processing for changing the light color and / or light intensity of the light emitting unit 107 based on the light emission content in conjunction with the playing of the video content. The ECU 100 performs processing for changing whether to generate a fragrance from the fragrance generating unit 108, the type of the generated fragrance, and / or the intensity of the generated fragrance in conjunction with the playing of the video content based on the fragrance content.

[0074] The ECU 100 receives information indicating the operation content (hereinafter referred to as operation information) from the operation unit 109, and controls at least one of the transparent display 102, the dimming film 104, the amplifier 105, the light emitting unit 107, and the aroma generating unit 108 based on the operation information. For example, the ECU 100 controls the transparent display 102 based on the operation information, thereby starting or stopping the playback of the video content. For example, the ECU 100 controls the amplifier 105 based on the operation information, thereby adjusting the volume of the audio content. For example, the ECU 100 controls the dimming film 104 based on the operation information, thereby adjusting the maximum value and / or minimum value of the transmittance, etc. For example, the ECU 100 controls the light emitting unit 107 based on the operation information, thereby setting whether the light emitting unit 107 is allowed to emit light and adjusting the light amount, etc. For example, the ECU 100 controls the aroma generating unit 108 based on the operation information, thereby setting whether the aroma generating unit 108 is allowed to generate aroma and setting the intensity of the aroma (for example, the intensity of the air volume for sending the aroma), etc. In addition, the ECU 100 may be replaced with other terms such as a processor, a controller, a control unit, or a control circuit.

[0075] <Processing for assisting fatigue recovery>

[0076] Figure 5 : is a graph showing an example of changes in the transmittance of the transparent display 102 in each stage according to Embodiment 1. Figure 5 In the graph shown, the horizontal axis represents time, the vertical axis represents transmittance, and a thick line 201 represents a change in transmittance. Figure 6 FIG. 1 is a diagram showing a first example of video content displayed on the transparent display 102 in the first stage according to the first embodiment. Figure 7 FIG. 2 is a diagram showing a second example of video content displayed on the transparent display 102 in the first stage according to the first embodiment. Figure 8This is a diagram showing a first example of video content displayed on the transparent display 102 in the third stage according to the first embodiment. Fig. 9 FIG. 2 is a diagram showing a second example of video content displayed on the transparent display 102 in the third stage according to the first embodiment.

[0077] Next, refer to Figure 5 , Figure 6 , Figure 7 , Figure 8 as well as Fig. 9 The processing performed to assist the user sitting in the rear seat 22 in recovering from fatigue will be described in detail.

[0078] The video content is an image that changes over time, and has at least a first stage, a second stage after the first stage, a third stage after the second stage, and a fourth stage after the third stage. That is, when the video content is played, the video is displayed in the transparent display 102 in the order of the first stage, the second stage, the third stage, and the fourth stage. In addition, a blackout curtain (not shown) can also be set on the rear door window 5, and the blackout curtain can be closed when the video content is played. Alternatively, a dimming film that can change the transmittance of light can also be set on the rear door window 5, and the ECU 100 automatically reduces the transmittance of the dimming film when the video content is played. In this way, the rear room 24 can be darkened. Next, each stage is described in detail.

[0079] <Phase 1>

[0080] In the first stage, a video that encourages the user (viewer) sitting in the rear seat 22 to relax is displayed on the transparent display 102. The transmittance (second transmittance) of the transparent display 102 at the end of the first stage may be smaller than the transmittance (first transmittance) of the transparent display 102 at the start of the first stage. Figure 5 As shown, the transmittance of the transparent display 102 can be changed in a manner that decreases over time. Thus, the user's sight of the scenery outside the vehicle through the front window 4 can be gradually guided to the video content displayed on the transparent display 102, and the user's consciousness can be smoothly turned to the video content.

[0081] The relaxation video can be the first half of the first stage, such as Figure 6 The natural video including the forest and the river (hereinafter referred to as the natural video 210) as shown in the example. By displaying such a natural video 210, the user's tension can be relieved and the user can be prompted to relax. The video that promotes relaxation can be as follows: Figure 7The video of the sunset sun sinking toward the horizon or the horizontal line (hereinafter referred to as the sunset video 220) as illustrated in the example. By displaying such a sunset video 220, the user can be made aware of the end of the active daytime and be prompted to relax.

[0082] The sunset video 220 may have a horizon or a horizontal line along the long side direction of the rectangular transparent display 102. Furthermore, the sunset video 220 may include a circularly luminous portion (the sunset sun) that partially contacts the horizon or the horizontal line. The sunset video 220 may be configured so that the horizon or the horizontal line of the sunset video 220 is consistent with or parallel to the boundary line 300 of the front window 4 and the instrument panel 7 when viewed by the user sitting in the back seat 22.

[0083] Thus, the scenery outside the vehicle seen through the front window 4 above the boundary line 300 overlaps with the part of the sky above the horizon or the horizontal line of the sunset video 220, and the instrument panel 7 below the boundary line 300 overlaps with the part of the ground or the sea below the horizon or the horizontal line of the sunset video 220. Typically, the part of the ground or the sea below the horizon or the horizontal line of the sunset video 220 is darker than the part of the sky above the horizon or the horizontal line of the sunset video 220, so the instrument panel 7 is almost invisible through the transparent display 102. Therefore, the unnatural feeling caused to the user by the overlap of the video content displayed on the transparent display 102 and the scenery seen through the transparent display 102 can be reduced. In addition, the user's consciousness directed toward the scenery outside the vehicle seen through the front window 4 can be smoothly guided to the video content displayed on the transparent display 102.

[0084] In the first stage, when the natural video 210 is displayed, audio corresponding to the natural video 210 is output from the speaker 106, the light emitting unit 107 emits light with a light color and / or light intensity corresponding to the natural video 210, and the fragrance generating unit 108 generates a fragrance corresponding to the natural video 210. In addition, in the first stage, when the sunset video 220 is displayed, audio corresponding to the sunset video 220 is output from the speaker 106, the light emitting unit 107 emits light with a light color and / or light intensity corresponding to the sunset video 220, and the fragrance generating unit 108 generates a fragrance corresponding to the sunset video 220. Thus, the user is encouraged to relax not only through vision but also through hearing and smell.

[0085] <Phase 2>

[0086] In the second stage, a video that induces the user (viewer) sitting in the back seat 22 to sleep (that is, hypnotize) is displayed on the transparent display 102. The video that induces sleep can be, for example, a video with relatively low brightness. Alternatively, in the second stage, the transparent display 102 may not display the video content.

[0087] The average value of the transmittance of the transparent display 102 during the first stage (the first average transmittance) may be greater than the average value of the transmittance of the transparent display 102 during the second stage (the second average transmittance). In other words, the average value of the transmittance of the transparent display 102 during the second stage (the second average transmittance) may be smaller than the average value of the transmittance of the transparent display 102 during the first stage (the first average transmittance). For example, the transmittance of the transparent display 102 in the second stage may be the minimum value that can be set within the range of transmittance. As a result, the back room 24 becomes darker in the second stage, so that the user who has relaxed in the first stage can be guided to fall asleep.

[0088] In the second stage, the audio corresponding to the video that encourages sleep is output from the speaker 106, the light emitting unit 107 emits light with a light color and / or light intensity corresponding to the video that encourages sleep, and the fragrance generating unit 108 generates a fragrance corresponding to the video that encourages sleep. Alternatively, in the second stage, the speaker 106 may not output the audio and the light emitting unit 107 may not emit light. In this way, the user is encouraged to sleep not only through vision but also through hearing and smell.

[0089] <Phase 3>

[0090] In the third stage, a video that prompts the user (viewer) sitting in the back seat 22 to wake up is displayed on the transparent display 102. The transmittance of the transparent display 102 in the third stage may be a third transmittance that is smaller than the first transmittance. In addition, the third transmittance may be equal to the second transmittance. For example, the transmittance of the transparent display 102 in the third stage may be the minimum value within the range of transmittances that can be set.

[0091] The awakening video can be the first half of the third stage as follows Figure 8 The video of the rising sun as shown in the example (hereinafter referred to as the rising sun video 230) can make the user aware that the active daytime has begun, thereby prompting the user to wake up. The video prompting the user to wake up can be the second half of the third stage as shown in the example. Fig. 9 The video including a flower as shown in the example (hereinafter referred to as the flower video 240 ) can attract the user's attention and make the user sober by displaying such a flower video 240 .

[0092] The video 230 of the rising sun may have a horizon or a horizontal line along the long side direction of the transparent display 102 which is a rectangle. Furthermore, the video 230 of the rising sun may include a circularly luminous portion (the rising sun) which is partially in contact with the horizon or the horizontal line. The video 230 of the rising sun may be configured so that the horizon or the horizontal line of the video 230 of the rising sun is consistent with or parallel to the boundary line 300 of the front window 4 and the instrument panel 7 when viewed by the user sitting in the rear seat 22.

[0093] Thus, the scenery outside the vehicle seen through the front window 4 above the boundary line 300 overlaps with the part of the sky above the horizon or the horizontal line of the video 230 of the rising sun, and the instrument panel 7 below the boundary line 300 overlaps with the part of the ground or the sea below the horizon or the horizontal line of the video 230 of the rising sun. Typically, the part of the ground or the sea below the horizon or the horizontal line of the video 230 of the rising sun is darker than the part of the sky above the horizon or the horizontal line of the video 230 of the rising sun, so the instrument panel 7 is almost invisible through the transparent display 102. Therefore, the unnatural feeling caused to the user by the overlap of the video content displayed on the transparent display 102 and the scenery seen through the transparent display 102 can be reduced.

[0094] In the third stage, when the video 230 of the rising sun is displayed, the audio corresponding to the video 230 of the rising sun is output from the speaker 106, the light emitting unit 107 emits light with a light color and / or light intensity corresponding to the video 230 of the rising sun, and the fragrance generating unit 108 generates a fragrance corresponding to the video 230 of the rising sun. In addition, in the third stage, when the video 240 of the flower is displayed, the audio corresponding to the video 240 of the flower is output from the speaker 106, the light emitting unit 107 emits light with a light color and / or light intensity corresponding to the video 240 of the flower, and the fragrance generating unit 108 generates a fragrance corresponding to the video 240 of the flower. Thus, the user is prompted to wake up not only through vision but also through hearing and smell.

[0095] <Stage 4>

[0096] In the fourth stage, for the user (viewer) sitting in the back seat 22, a video that at least does not encourage relaxation, sleep or wakefulness is displayed on the transparent display 102. The video displayed in the fourth stage may be, for example, a video with relatively high brightness. Alternatively, in the fourth stage, no video content may be displayed on the transparent display 102.

[0097] After a certain time has passed since the fourth stage, the transmittance of the transparent display 102 may be a fourth transmittance greater than the third transmittance. That is, the fourth transmittance may be a relatively high transmittance. For example, in the fourth stage, Figure 5As shown, the transmittance of the transparent display 102 can be changed in a manner that increases over time. Thus, the user's line of sight toward the video content displayed on the transparent display 102 can be gradually guided to the scenery outside the vehicle through the front window 4, and the user's consciousness can be smoothly turned to the scenery outside the vehicle.

[0098] The average value of the transmittance of the transparent display 102 during the fourth stage (the third average transmittance) may be greater than the average value of the transmittance of the transparent display 102 during the third stage (the fourth average transmittance). Figure 5 As shown, the transmittance of the transparent display 102 in the fourth stage can increase with the passage of time, and finally become the maximum value within the range that can be set as the transmittance. As a result, the transmittance of the transparent display 102 increases, so that the user's sight toward the video content in the third stage can be gradually guided to the scenery outside the vehicle through the front window 4, and the user's consciousness can be smoothly turned to the real scenery outside the vehicle.

[0099] In the fourth stage, the speaker 106 may not output audio, the light emitting unit 107 may not emit light, and the fragrance generating unit 108 may not generate fragrance.

[0100] <About transmittance>

[0101] When the rear room 24 is completely darkened and the outside of the vehicle cannot be visually confirmed at all, the user may be prone to motion sickness. Therefore, the minimum value of the transmittance of the transparent display 102 may be greater than 0. In other words, the transparent display 102 may be a structure that does not completely block the light from outside the vehicle. Alternatively, the minimum value of the transmittance of the transparent display 102 may be arbitrarily changed. For example, the minimum value of the transmittance of the transparent display 102 when a user who is prone to motion sickness sits in the rear seat 22 may be set higher than the minimum value of the transmittance of the transparent display 102 when a user who is not prone to motion sickness sits in the rear seat 22.

[0102] (Summary of Implementation Method 1)

[0103] The following technology is disclosed through the description of the above-mentioned first embodiment.

[0104] <Technology A1>

[0105] The vehicle 1 has at least:

[0106] A first wheel 3A connected to the vehicle body 2;

[0107] A second wheel 3B connected to the vehicle body 2;

[0108] A third wheel 3C connected to the vehicle body 2; and

[0109] a fourth wheel 3D, which is connected to the vehicle body 2,

[0110] The vehicle 1 can travel in a predetermined direction using the first wheel 3A, the second wheel 3B, the third wheel 3C, and the fourth wheel 3D.

[0111] The vehicle body 2 has:

[0112] A bottom surface portion 11 and a top surface portion 12, wherein the bottom surface portion 11 and the top surface portion 12 are arranged along the specified direction;

[0113] a left side surface 13, which connects the bottom surface 11 and the top surface 12 and is arranged on the left side along the specified direction;

[0114] a right side surface 14, which connects the bottom surface 11 and the top surface 12 and is arranged on the right side along the specified direction;

[0115] a front portion 16 connecting the bottom portion 11 and the top portion 12 and arranged at the front portion 15 in the prescribed direction;

[0116] a rear surface portion 18 connecting the bottom surface portion 11 and the top surface portion 12 and arranged at the rear portion 17 in the prescribed direction;

[0117] at least one front seat 21 disposed on the bottom surface portion 11 at a position closer to the front surface portion 16 than to the rear surface portion 18 ; and

[0118] At least one rear seat 22 is disposed on the bottom portion 11 at a position closer to the rear portion 18 than to the front portion 16 .

[0119] The front portion 16 includes glass (for example, a front window 4) that enables visual confirmation of the outside of the vehicle from the front seat 21 toward the predetermined direction.

[0120] The vehicle body 2 is further provided with a transparent display 102 with variable transmittance between the rear seat 22 and the front seat 21.

[0121] The outside of the vehicle can be visually confirmed from the rear seat 22 through the transparent display 102 and the glass (e.g., the front window 4).

[0122] The transparent display 102 is configured to play a specified video content.

[0123] The prescribed video content has at least a first stage, a second stage after the first stage, a third stage after the second stage, and a fourth stage after the third stage.

[0124] At the beginning of the first phase, the variable transmittance of the transparent display is a first transmittance,

[0125] At the end of the first phase, the variable transmittance of the transparent display is a second transmittance that is smaller than the first transmittance.

[0126] <Technique A2>

[0127] In the vehicle 1 described in the technique A1,

[0128] In the third stage of the prescribed video content, the variable transmittance of the transparent display is a third transmittance smaller than the first transmittance,

[0129] After a certain time has passed since the fourth stage started, the variable transmittance of the transparent display is a fourth transmittance greater than the third transmittance.

[0130] <Technology A3>

[0131] In the vehicle 1 described in the technique A2,

[0132] The third transmittance is equal to the second transmittance.

[0133] <Technology A4>

[0134] In the vehicle 1 described in any one of Techniques A1 to A3,

[0135] The first stage of the prescribed video content encourages the viewer to relax,

[0136] The second stage of the prescribed video content induces the viewer to sleep,

[0137] The third stage of the prescribed video content causes the viewer to wake up.

[0138] The fourth stage of the prescribed video content at least does not induce relaxation, sleep or wakefulness to the viewer.

[0139] <Technology A5>

[0140] In the vehicle 1 described in any one of Techniques A1 to A4,

[0141] The first average transmittance is greater than the second average transmittance, the first average transmittance being the average of the variable transmittance of the transparent display 102 in the first stage of the specified video content, and the second average transmittance being the average of the variable transmittance of the transparent display 102 in the second stage of the specified video content.

[0142] <Technology A6>

[0143] In the vehicle 1 described in any one of Techniques A1 to A4,

[0144] The third average transmittance is greater than the fourth average transmittance, and the third average transmittance is the average of the variable transmittance of the transparent display 102 in the fourth stage of the specified video content, and the fourth average transmittance is the average of the variable transmittance of the transparent display 102 in the third stage of the specified video content.

[0145] <Technology A7>

[0146] In the vehicle 1 described in any one of Techniques A1 to A6,

[0147] The transparent display 102 includes at least a self-luminous display 103 and a sheet with variable light transmittance (eg, a dimming film 104 ).

[0148] <Technology A8>

[0149] The vehicle 1 described in any one of Techniques A1 to A7 further includes:

[0150] A front room 23 in which the front seat 21 is arranged;

[0151] a rear room 24 in which the rear seat 22 is disposed; and

[0152] The partition wall 31 is provided to separate the front chamber 23 from the rear chamber 24, and the transparent display 102 is arranged on the partition wall 31.

[0153] The vehicle 1 includes a light emitting unit 107 capable of adjusting light color and light intensity, and the light emitting unit 107 is disposed in at least one of the following parts:

[0154] A partition wall rear chamber side surface portion 32 of the partition wall 31 close to the rear chamber 24;

[0155] The bottom portion 11 connected to the rear chamber 24;

[0156] The top surface portion 12 connected to the rear chamber 24;

[0157] The rear portion 18 connected to the rear chamber 24;

[0158] The left side surface 13 connected to the rear chamber 24; and

[0159] At least one of the right side surfaces 14 connected to the rear chamber 24,

[0160] The light color and / or the light intensity of the light emitting unit 107 changes in accordance with the predetermined video content and the passage of time of the predetermined video content.

[0161] <Technology A9>

[0162] In the vehicle 1 described in any one of Techniques A1 to A8,

[0163] It also includes a fragrance generating unit 108 for generating fragrance.

[0164] The fragrance generated by the fragrance generating unit 108 changes in accordance with the predetermined video content and the passage of time of the predetermined video content.

[0165] <Technology B1>

[0166] The vehicle 1 has at least:

[0167] A first wheel 3A connected to the vehicle body 2;

[0168] A second wheel 3B connected to the vehicle body 2;

[0169] A third wheel 3C connected to the vehicle body 2; and

[0170] a fourth wheel 3D, which is connected to the vehicle body 2,

[0171] The vehicle 1 can travel in a predetermined direction using the first wheel 3A, the second wheel 3B, the third wheel 3C, and the fourth wheel 3D.

[0172] The vehicle body 2 has:

[0173] A bottom surface portion 11 and a top surface portion 12, wherein the bottom surface portion 11 and the top surface portion 12 are arranged along the specified direction;

[0174] a left side surface 13, which connects the bottom surface 11 and the top surface 12 and is arranged on the left side along the specified direction;

[0175] a right side surface 14, which connects the bottom surface 11 and the top surface 12 and is arranged on the right side along the specified direction;

[0176] a front portion 16 connecting the bottom portion 11 and the top portion 12 and arranged at the front portion 15 in the prescribed direction;

[0177] a rear surface portion 18 connecting the bottom surface portion 11 and the top surface portion 12 and arranged at the rear portion 17 in the prescribed direction;

[0178] at least one front seat 21 disposed on the bottom surface portion 11 at a position closer to the front surface portion 16 than to the rear surface portion 18 ; and

[0179] At least one rear seat 22 is disposed on the bottom portion 11 at a position closer to the rear portion 18 than to the front portion 16 .

[0180] The front portion 16 includes glass (for example, a front window 4) that enables visual confirmation of the outside of the vehicle from the front seat 21 toward the predetermined direction.

[0181] The vehicle body 2 is also provided with a rectangular transparent display 102 between the rear seat 22 and the front seat 21.

[0182] The transparent display 102 is arranged in a manner that the long side of the rectangle is along the horizontal direction.

[0183] The outside of the vehicle can be visually confirmed from the rear seat 22 through the transparent display 102 and the glass (e.g., the front window 4).

[0184] The transparent display 102 is configured to play a specified video content.

[0185] The prescribed video content has at least a first stage, a second stage after the first stage, and a third stage after the second stage.

[0186] The prescribed video content includes, in at least a portion of the first stage, a video having a horizon or a horizontal line along a long side direction of the rectangle.

[0187] <Technology B2>

[0188] In the vehicle 1 described in the technique B1,

[0189] The video having the horizon line or the horizontal line displays a circularly luminous portion that is partially in contact with the horizon line or the horizontal line.

[0190] <Technology B3>

[0191] In the vehicle 1 described in the technique B2,

[0192] The circularly glowing portion in the video having the horizon or horizontal line represents the sun.

[0193] <Technique B4>

[0194] In the vehicle 1 described in any one of the techniques B1 to B3,

[0195] The first stage of the prescribed video content encourages the viewer to relax,

[0196] The second stage of the prescribed video content induces the viewer to sleep,

[0197] The third stage of the prescribed video content prompts viewers to wake up.

[0198] <Technique B5>

[0199] In the vehicle 1 described in any one of Technique 1 to Technique B4,

[0200] At least a portion of the third stage includes a video having a horizon or a horizontal line along the long side of the rectangle,

[0201] The video having the horizon line or the horizontal line displays a circularly luminous portion that is partially in contact with the horizon line or the horizontal line.

[0202] <Technique B6>

[0203] In the vehicle 1 described in the technique B5,

[0204] The circularly glowing portion in the video having the horizon or horizontal line represents the sun.

[0205] <Technique B7>

[0206] In the vehicle 1 described in any one of the techniques B1 to B6,

[0207] The transparent display 102 at least includes a self-luminous display 103 and a sheet with variable light transmittance (such as a dimming film).

[0208] <Technique B8>

[0209] The vehicle 1 described in any one of the techniques B1 to B7 further includes:

[0210] A front room 23 in which the front seat 21 is arranged;

[0211] a rear room 24 in which the rear seat 22 is disposed; and

[0212] The partition wall 31 is provided to separate the front chamber 23 from the rear chamber 24, and the transparent display 102 is arranged on the partition wall 31.

[0213] The vehicle 1 includes a light emitting unit 107 capable of adjusting light color and light intensity, and the light emitting unit 107 is disposed in at least one of the following parts:

[0214] A partition wall rear chamber side surface portion 32 of the partition wall 31 close to the rear chamber 24;

[0215] The bottom portion 11 connected to the rear chamber 24;

[0216] The top surface portion 12 connected to the rear chamber 24;

[0217] The rear portion 18 connected to the rear chamber 24;

[0218] The left side surface 13 connected to the rear chamber 24; and

[0219] The right side surface 14 connected to the rear chamber 24,

[0220] The light color and / or the light intensity of the light emitting unit 107 changes in accordance with the predetermined video content and the passage of time of the predetermined video content.

[0221] <Technique B9>

[0222] In the vehicle 1 described in any one of the techniques B1 to B8,

[0223] It also includes a fragrance generating unit 108 for generating fragrance.

[0224] The fragrance generated by the fragrance generating unit 108 changes in accordance with the predetermined video content and the passage of time of the predetermined video content.

[0225] (Implementation Method 2)

[0226] In the second embodiment, description will be given of contents that are added to or changed from those described in the first embodiment. Therefore, all the contents of the first embodiment are incorporated into the second embodiment unless otherwise specified.

[0227] <Phase 1>

[0228] Fig.10 This is a diagram showing an example of video content displayed on the transparent display 102 in the first stage when the light-adjusting film 401 is provided on the rear door window 5 according to the second embodiment. Fig.11 This is a diagram showing an example of video content displayed on the transparent display 102 in the first stage when the rear door window 5 is provided with the shade 411 according to the second embodiment.

[0229] like Fig.10 As shown, a dimming film 401 can be provided on the rear door window 5. In addition, a dimming film 402 can also be provided on the rear window 6 (refer to Figure 1). Moreover, when the first stage starts, the ECU 100 may control the transmittance of the dimming film 401 of the rear door window 5 and the dimming film 402 of the rear window 6 to be lower than the transmittance before the first stage starts (for example, the transmittance is changed to the minimum value). In this way, the rear room 24 can be darkened.

[0230] Or, if Fig.11 As shown, a shade curtain 411 may be provided on the rear door window 5. In addition, a shade curtain (not shown) may be provided on the rear window 6. Moreover, when the first stage is started, the ECU 100 may also control the automatic closing of the shade curtain 411 of the rear door window 5 and the shade curtain (not shown) of the rear window 6. Thus, the rear room 24 can be darkened.

[0231] After darkening rear room 24 in this manner, ECU 100 outputs a voice urging deep breathing, such as “Please take a deep breath slowly”, from speaker 106 in at least a portion of the first stage (eg, a portion immediately after the start of the first stage).

[0232] Then, as the first stage, the ECU 100 displays a video that promotes relaxation on the transparent display 102. The video that promotes relaxation may be a video that includes an object that moves at a predetermined cycle, in addition to the natural video 210 and the sunset video 220 described in the first embodiment. The object that moves at a predetermined cycle may be a rotating waterwheel. That is, in the first stage, as a video that promotes relaxation, a video such as Fig.10 or Fig.11 The video of the waterwheel 421 rotating at a predetermined period as illustrated (hereinafter referred to as the waterwheel video 420) is shown. In addition, the waterwheel video 420 may be a real shot or a computer graphic (Computer Graphics (CG)). The waterwheel video 420 may be displayed after the natural video 210 described in Embodiment 1. However, the waterwheel video 420 may be displayed at any time in the first stage.

[0233] Thus, by outputting a broadcast to encourage deep breathing and displaying water wheel video 420 including water wheel 421 rotating at a predetermined cycle, the user of rear seat 22 can be guided to take deep breaths at regular intervals. As a result, the user can be encouraged to relax and increase the user's sleepiness.

[0234] In addition, the object that moves at a predetermined period is not limited to a waterwheel, and may be, for example, a windmill or waves that surge at predetermined time intervals. That is, in the first stage, as a video that promotes relaxation, a video containing a windmill rotating at a predetermined period (hereinafter referred to as a windmill video) or a video containing waves that surge at predetermined time intervals (hereinafter referred to as a wave video) may be displayed. In addition, the windmill video or the wave video may be a real shot or a CG video.

[0235] The relaxing video shown in the first stage may also be Figure 6 or Fig.10 As shown in the example, the video that does not focus on a specific object (such as a natural scenery) can be used to relax the user and increase the user's sleepiness. The video that does not focus on a specific object can be a video shot at a wide angle.

[0236] <Phase 3>

[0237] Fig.12 This is a diagram for explaining the time interval of scene switching in the third stage involved in Implementation Example 2.

[0238] like Fig.12 As shown, the average time interval of scene switching in the third stage (hereinafter referred to as the second average time interval) can be shorter than the average time interval of scene switching in the first stage (hereinafter referred to as the first average time interval). In other words, the average time interval of scene switching in the first stage (the first average time interval) can be longer than the average time interval of scene switching in the third stage (the second average time interval). In this way, in the third stage, by displaying video content that switches scenes in a relatively short time, a strong stimulation can be given to the vision of the user in the rear seat 22 to prompt the user to wake up. In addition, the first average time interval can be a value obtained by dividing the total time of the time of each scene in the first stage by the number of scenes included in the first stage. The second average time interval can be a value obtained by dividing the total time of the time of each scene in the third stage by the number of scenes included in the third stage.

[0239] In at least a part of the third stage, the ECU 100 may output the chirping sound of a bird from the speaker 106. Thus, in the third stage, by outputting the chirping sound of a bird, the user can be reminded of the impression of the morning, so as to prompt the user to wake up.

[0240] The wakefulness-inducing video displayed in the third stage may be as follows: Fig. 9As shown in the example, a video focusing on a specific object (such as a flower) is shown. By displaying such a video focusing on a specific object, the user becomes more likely to concentrate and can be prompted to be awake. The video focusing on a specific object can be a video obtained by zooming in.

[0241] At the beginning of the third stage or at the end of the third stage, the ECU 100 may control the transmittance of the dimming film 401 of the rear door window 5 and the dimming film 402 of the rear window 6 to be higher than the transmittance in the second stage (for example, the transmittance is changed to the maximum value). In this way, the rear room 24 can be brightened to help the user wake up.

[0242] Alternatively, when the third stage starts or ends, the ECU 100 may control opening of the shade 411 of the rear door window 5 and the shade (not shown) of the rear window 6. This allows the rear room 24 to be brightened to wake the user up.

[0243] <Light-shielding properties of the back room>

[0244] As described in the first embodiment, the partition wall 31 for partitioning the front seat 21 and the rear seat 22 and the transparent display 102 disposed on the partition wall 31 are provided between the front seat 21 and the rear seat 22. Fig.10 or Fig.11 As shown, the transparent display 102 may be arranged so as to be accommodated in the partition wall 31. Hereinafter, the portion of the partition wall 31 other than the transparent display 102 is referred to as a frame 450.

[0245] The user of the rear seat 22 can visually check the outside of the vehicle through the transparent display 102 and the front window 4. The transparent display 102 has a variable transmittance that can be changed between a first transmittance and a second transmittance greater than the first transmittance. The variable transmittance changes in accordance with the video content played by the transparent display 102 and the passage of time of the video content.

[0246] The transparent display 102 includes at least a self-luminous display 103 and a sheet with variable light transmittance (a light-adjusting film 104 ).

[0247] In the partition wall 31, the average transmittance (hereinafter referred to as the third transmittance) of the portion other than the transparent display 102 (outer frame 450) can be made smaller than the first transmittance. That is, the third transmittance of the outer frame 450 can be relatively small. Thus, it is possible to suppress the light from outside the vehicle from passing through the outer frame 450 and entering the rear chamber 24, and the rear chamber 24 can be darkened. The outer frame 450 can be composed of dimming glass. In this case, the ECU 100 can control the transmittance of the outer frame 450 (dimming glass) to be reduced at the beginning of the first stage. Alternatively, the outer frame 450 can also be composed only of components with high light-shielding properties.

[0248] The average light transmittance of the rear portion 18 connected to the rear chamber 24 (hereinafter referred to as the fourth light transmittance) can be set to be smaller than the first light transmittance. For example, the fourth light transmittance of the rear window 6 can be relatively small. As a result, it is possible to suppress the light from outside the vehicle from passing through the rear window 6 and entering the rear chamber 24, and the rear chamber 24 can be darkened. In the case where the rear window 6 is provided with a dimming film 402, the ECU 100 can control the reduction of the transmittance of the dimming film 402 at the beginning of the first stage. In the case where the rear window 6 is provided with a blackout curtain (not shown), the ECU 100 can control the closing of the blackout curtain at the beginning of the first stage. In addition, the blackout curtain can also be closed manually. Alternatively, a sheet with high light-shielding properties can be pasted on the rear window 6.

[0249] The average light transmittance of the left side surface 13 connected to the rear chamber 24 (hereinafter referred to as the fifth light transmittance) can be set smaller than the first light transmittance. For example, the fifth light transmittance of the rear door window 5A can be relatively small. As a result, it is possible to suppress the light from outside the vehicle from passing through the rear door window 5A and entering the rear chamber 24, and the rear chamber 24 can be darkened. In the case where the rear door window 5A is provided with a dimming film 401A, the ECU 100 can control the reduction of the transmittance of the dimming film 401A at the beginning of the first stage. In the case where the rear door window 5A is provided with a blackout curtain 411A, the ECU 100 can control the closing of the blackout curtain 411A at the beginning of the first stage. In addition, the blackout curtain 411A can also be closed manually. Alternatively, a sheet with high light-shielding properties can be pasted on the rear door window 5A.

[0250] The average light transmittance of the right side face 14 connected to the rear chamber 24 (hereinafter referred to as the sixth light transmittance) can be set smaller than the first light transmittance. For example, the sixth light transmittance of the rear door window 5B can be relatively small. As a result, it is possible to suppress the light from outside the vehicle from passing through the rear door window 5B and entering the rear chamber 24, and the rear chamber 24 can be darkened. In the case where the rear door window 5B is provided with a dimming film 401B, the ECU 100 can control the reduction of the transmittance of the dimming film 401B at the beginning of the first stage. In the case where the rear door window 5B is provided with a blackout curtain 411B, the ECU 100 can control the closing of the blackout curtain 411B at the beginning of the first stage. In addition, the blackout curtain 411B can also be closed manually. Alternatively, a sheet with high light-shielding properties can be pasted on the rear door window 5B.

[0251] (Summary of Implementation Method 2)

[0252] The following technology is disclosed through the description of the above embodiment 2.

[0253] <Technology C1>

[0254] The vehicle 1 has at least:

[0255] A first wheel 3A connected to the vehicle body 2;

[0256] A second wheel 3B connected to the vehicle body 2;

[0257] A third wheel 3C connected to the vehicle body 2; and

[0258] a fourth wheel 3D, which is connected to the vehicle body 2,

[0259] The vehicle 1 can travel in a predetermined direction using the first wheel 3A, the second wheel 3B, the third wheel 3C, and the fourth wheel 3D.

[0260] In the vehicle 1, the vehicle body 2 includes:

[0261] A bottom surface portion 11 and a top surface portion 12, wherein the bottom surface portion 11 and the top surface portion 12 are arranged along the specified direction;

[0262] a left side surface 13, which connects the bottom surface 11 and the top surface 12 and is arranged on the left side along the specified direction;

[0263] a right side surface 14, which connects the bottom surface 11 and the top surface 12 and is arranged on the right side along the specified direction;

[0264] a front portion 16 connecting the bottom portion 11 and the top portion 12 and arranged at the front portion 15 in the prescribed direction;

[0265] a rear surface portion 18 connecting the bottom surface portion 11 and the top surface portion 12 and arranged at the rear portion 17 in the prescribed direction;

[0266] at least one front seat 21 disposed on the bottom surface portion 11 at a position closer to the front surface portion 16 than to the rear surface portion 18 ; and

[0267] At least one rear seat 22 is disposed on the bottom portion 11 at a position closer to the rear portion 18 than to the front portion 16 .

[0268] The front portion 16 includes glass (for example, a front window 4) that enables visual confirmation of the outside of the vehicle from the front seat 21 toward the predetermined direction.

[0269] The vehicle body 2 is further provided with a transparent display 102 between the rear seat 22 and the front seat 21 and a speaker 106 for playing sound toward the rear seat 22.

[0270] The display and the speaker 106 are configured to play specified video content and sound respectively.

[0271] The prescribed video content has at least a first stage, a second stage after the first stage, and a third stage after the second stage.

[0272] In at least a part of the first phase, the speaker 106 outputs a sound that encourages deep breathing, and the display displays an object that moves in a predetermined cycle.

[0273] <Technology C2>

[0274] In the vehicle 1 described in technology C1,

[0275] The object that moves at a predetermined period is a rotating water wheel 421 or a windmill.

[0276] <Technology C3>

[0277] In the vehicle 1 described in technology C1,

[0278] The object moving at a predetermined period is a wave coming at predetermined time intervals.

[0279] <Technology C4>

[0280] In the vehicle 1 described in any one of Techniques C1 to C3,

[0281] The first stage of the prescribed video content encourages the viewer to relax,

[0282] The second stage of the prescribed video content induces the viewer to sleep,

[0283] The third stage of the prescribed video content prompts viewers to wake up.

[0284] <Technology C5>

[0285] The vehicle 1 according to any one of Techniques C1 to C4 further includes:

[0286] A front room 23 in which the front seat 21 is arranged;

[0287] a rear room 24 in which the rear seat 22 is disposed; and

[0288] The partition wall 31 is provided to separate the front chamber 23 from the rear chamber 24, and the transparent display is arranged on the partition wall 31.

[0289] The vehicle 1 includes a light emitting unit 107 capable of adjusting light color and light intensity, and the light emitting unit 107 is disposed in at least one of the following parts:

[0290] A partition wall rear chamber side surface portion 32 on the rear chamber 24 side of the partition wall 31;

[0291] The bottom portion 11 connected to the rear chamber 24;

[0292] The top surface portion 12 connected to the rear chamber 24;

[0293] The rear portion 18 connected to the rear chamber 24;

[0294] The left side surface 13 connected to the rear chamber 24; and

[0295] The right side surface 14 connected to the rear chamber 24,

[0296] The light color and / or the light intensity of the light emitting unit 107 changes in accordance with the predetermined video content and the passage of time of the predetermined video content.

[0297] <Technology C6>

[0298] In the vehicle 1 described in any one of techniques C1 to C5,

[0299] It also includes a fragrance generating unit 108 for generating fragrance.

[0300] The fragrance generated by the fragrance generating unit 108 changes in accordance with the predetermined video content and the passage of time of the predetermined video content.

[0301] <Technology D1>

[0302] The vehicle 1 has at least:

[0303] A first wheel 3A connected to the vehicle body 2;

[0304] A second wheel 3B connected to the vehicle body 2;

[0305] A third wheel 3C connected to the vehicle body 2; and

[0306] a fourth wheel 3D, which is connected to the vehicle body 2,

[0307] The vehicle 1 can travel in a predetermined direction using the first wheel 3A, the second wheel 3B, the third wheel 3C, and the fourth wheel 3D.

[0308] The vehicle body 2 has:

[0309] A bottom surface portion 11 and a top surface portion 12, wherein the bottom surface portion 11 and the top surface portion 12 are arranged along the specified direction;

[0310] a left side surface 13, which connects the bottom surface 11 and the top surface 12 and is arranged on the left side along the specified direction;

[0311] a right side surface 14, which connects the bottom surface 11 and the top surface 12 and is arranged on the right side along the specified direction;

[0312] a front portion 16 connecting the bottom portion 11 and the top portion 12 and arranged at the front portion 15 in the prescribed direction;

[0313] a rear surface portion 18 connecting the bottom surface portion 11 and the top surface portion 12 and arranged at the rear portion 17 in the prescribed direction;

[0314] at least one front seat 21 disposed on the bottom surface portion 11 at a position closer to the front surface portion 16 than to the rear surface portion 18 ; and

[0315] At least one rear seat 22 is disposed on the bottom portion 11 at a position closer to the rear portion 18 than to the front portion 16 .

[0316] The front portion 16 includes glass (for example, a front window 4) that enables visual confirmation of the outside of the vehicle from the front seat 21 toward the predetermined direction.

[0317] The vehicle body 2 further includes a transparent display 102 between the rear seat 22 and the front seat 21, wherein the transparent display 102 has a variable transmittance that can be changed between a first transmittance and a second transmittance greater than the first transmittance.

[0318] The rear seat 22 can visually check the outside of the vehicle through the transparent display 102 and the glass.

[0319] The variable transmittance changes in correspondence with the video content played by the transparent display 102 and the passage of time of the video content.

[0320] <Technology D2>

[0321] In the vehicle 1 described in the technique D1,

[0322] The transparent display 102 at least includes a self-luminous display 103 and a sheet with variable light transmittance (eg, a dimming film 104 ).

[0323] <Technology D3>

[0324] The vehicle 1 described in the technique D1 or the technique D2 further includes:

[0325] A front room 23, in which the front seat 21 is arranged, and the front room 23 is connected to at least the front portion 16;

[0326] a rear chamber 24 in which the rear seat 22 is disposed, and the rear chamber 24 is at least connected to the rear surface portion 18; and

[0327] The partition wall 31 is disposed between the front chamber 23 and the rear chamber 24 to separate the front chamber 23 from the rear chamber 24. The transparent display 102 is disposed on the partition wall 31.

[0328] The average light transmittance of the portion (eg, the outer frame 450 ) other than the transparent display 102 in the partition wall 31 is the third light transmittance.

[0329] The third light transmittance can be set to be smaller than the first light transmittance.

[0330] <Technology D4>

[0331] In the vehicle 1 described in the technique D3,

[0332] The average light transmittance of the rear portion 18 connected to the rear chamber 24 is the fourth light transmittance.

[0333] The fourth light transmittance can be set to be smaller than the first light transmittance.

[0334] <Technique D5>

[0335] In the vehicle 1 described in the technique D3 or the technique D4,

[0336] The average light transmittance of the left side surface 13 connected to the rear chamber 24 is the fifth light transmittance.

[0337] The fifth light transmittance can be set to be smaller than the first light transmittance.

[0338] <Technology D6>

[0339] In the vehicle 1 described in any one of the techniques D3 to D5,

[0340] The average light transmittance of the right side surface 14 connected to the rear chamber 24 is the sixth light transmittance.

[0341] The sixth light transmittance can be set to be smaller than the first light transmittance.

[0342] <Technology D7>

[0343] In the vehicle 1 described in any one of the techniques D3 to D6,

[0344] A light emitting unit 107 capable of adjusting light color and light intensity is provided, wherein the light emitting unit 107 is disposed in at least one of the following parts:

[0345] A partition wall 31 connected to the rear chamber 24;

[0346] A bottom portion 11 connected to the rear chamber 24;

[0347] A top surface portion 12 connected to the rear chamber 24;

[0348] A rear portion 18 connected to the rear chamber 24;

[0349] A left side surface 13 connected to the rear chamber 24; and

[0350] The right side surface 14 connected to the rear chamber 24,

[0351] The color of the light and / or the intensity of the light of the light emitting unit 107 changes in accordance with the video content played by the transparent display 102 and the passage of time of the video content.

[0352] <Technology D8>

[0353] In the vehicle 1 described in the techniques D3 to D7,

[0354] It also includes a fragrance generating unit 108 for generating fragrance.

[0355] The fragrance generated by the fragrance generating unit 108 changes in accordance with the video content played by the transparent display 102 and the passage of time of the video content.

[0356] <Technology D9>

[0357] A transparent display 102 is provided on a vehicle 1, wherein the vehicle 1 at least comprises:

[0358] A first wheel 3A connected to the vehicle body 2;

[0359] A second wheel 3B connected to the vehicle body 2;

[0360] A third wheel 3C connected to the vehicle body 2; and

[0361] a fourth wheel 3D, which is connected to the vehicle body 2,

[0362] The vehicle 1 can travel in a predetermined direction using the first wheel 3A, the second wheel 3B, the third wheel 3C, and the fourth wheel 3D.

[0363] The vehicle body 2 has:

[0364] A bottom surface portion 11 and a top surface portion 12, wherein the bottom surface portion 11 and the top surface portion 12 are arranged along the specified direction;

[0365] a left side surface 13, which connects the bottom surface 11 and the top surface 12 and is arranged on the left side along the specified direction;

[0366] a right side surface 14, which connects the bottom surface 11 and the top surface 12 and is arranged on the right side along the specified direction;

[0367] a front portion 16 connecting the bottom portion 11 and the top portion 12 and arranged at the front portion 15 in the prescribed direction;

[0368] a rear surface portion 18 connecting the bottom surface portion 11 and the top surface portion 12 and arranged at the rear portion 17 in the prescribed direction;

[0369] at least one front seat 21 disposed on the bottom surface portion 11 at a position closer to the front surface portion 16 than to the rear surface portion 18 ; and

[0370] At least one rear seat 22 is disposed on the bottom portion 11 at a position closer to the rear portion 18 than to the front portion 16 .

[0371] The front portion 16 includes glass (for example, a front window 4) that enables visual confirmation of the outside of the vehicle from the front seat 21 in the predetermined direction.

[0372] The transparent display 102 can be disposed between the rear seat and the front seat of the vehicle body 2, and can be configured to enable visual confirmation of the outside of the vehicle from the rear seat through the transparent display and the glass.

[0373] The transparent display 102 has a variable transmittance that can be changed between a first transmittance and a second transmittance greater than the first transmittance.

[0374] The variable light transmittance changes in correspondence with the video content being played and the passage of time of the video content.

[0375] <Technique D10>

[0376] In the transparent display 102 described in technology D9,

[0377] It at least includes a self-luminous display 103 and a sheet with variable light transmittance (eg, a dimming film 104).

[0378] <Technique D11>

[0379] In the transparent display 102 described in the technique D9, the vehicle 1 further includes:

[0380] A front room 23, in which the front seat 21 is arranged, and the front room 23 is connected to at least the front portion 16;

[0381] a rear chamber 24 in which the rear seat 22 is disposed, and the rear chamber 24 is at least connected to the rear surface portion 18; and

[0382] The partition wall is disposed between the front chamber 23 and the rear chamber 24 to separate the front chamber 23 from the rear chamber 24. The transparent display 102 is disposed on the partition wall.

[0383] The average light transmittance of the portion (eg, the outer frame 450 ) other than the transparent display 102 in the partition wall 31 is the third light transmittance.

[0384] The third light transmittance can be set to be smaller than the first light transmittance.

[0385] <Technology D12>

[0386] In the transparent display 102 described in technology D11,

[0387] The average light transmittance of the rear portion 18 connected to the rear chamber 24 is the fourth light transmittance.

[0388] The fourth light transmittance can be set to be smaller than the first light transmittance.

[0389] <Technology D13>

[0390] In the transparent display 102 described in the technique D11 or the technique D12,

[0391] The average light transmittance of the left side surface 13 connected to the rear chamber 24 is the fifth light transmittance.

[0392] The fifth light transmittance can be set to be smaller than the first light transmittance.

[0393] <Technology D14>

[0394] In the transparent display 102 described in any one of the techniques D11 to D13,

[0395] The average light transmittance of the right side surface 14 connected to the rear chamber 24 is the sixth light transmittance.

[0396] The sixth light transmittance can be set to be smaller than the first light transmittance.

[0397] <Technology D15>

[0398] In the transparent display 102 described in any one of the techniques D11 to D14,

[0399] The vehicle 1 includes a light emitting unit 107 capable of adjusting light color and light intensity. The light emitting unit 107 can be disposed in at least one of the following parts:

[0400] A partition wall 31 connected to the rear chamber 24;

[0401] A bottom portion 11 connected to the rear chamber 24;

[0402] A top surface portion 12 connected to the rear chamber 24;

[0403] A rear portion 18 connected to the rear chamber 24;

[0404] A left side surface 13 connected to the rear chamber 24; and

[0405] The right side surface 14 connected to the rear chamber 24,

[0406] The color of the light and / or the intensity of the light of the light emitting unit 107 changes in accordance with the video content played by the transparent display 102 and the passage of time of the video content.

[0407] <Technology D16>

[0408] In the transparent display 102 described in any one of the techniques D11 to D15,

[0409] The vehicle 1 includes a fragrance generating unit 108 for generating fragrance.

[0410] The fragrance generated by the fragrance generating unit 108 changes in accordance with the video content played by the transparent display 102 and the passage of time of the video content.

[0411] <Technology E1>

[0412] The vehicle 1 has at least:

[0413] A first wheel 3A connected to the vehicle body 2;

[0414] A second wheel 3B connected to the vehicle body 2;

[0415] A third wheel 3C connected to the vehicle body 2; and

[0416] a fourth wheel 3D, which is connected to the vehicle body 2,

[0417] The vehicle 1 can travel in a predetermined direction using the first wheel 3A, the second wheel 3B, the third wheel 3C, and the fourth wheel 3D.

[0418] In the vehicle 1, the vehicle body 2 includes:

[0419] A bottom surface portion 11 and a top surface portion 12, wherein the bottom surface portion 11 and the top surface portion 12 are arranged along the specified direction;

[0420] a left side surface 13, which connects the bottom surface 11 and the top surface 12 and is arranged on the left side along the specified direction;

[0421] a right side surface 14, which connects the bottom surface 11 and the top surface 12 and is arranged on the right side along the specified direction;

[0422] a front portion 16 connecting the bottom portion 11 and the top portion 12 and arranged at the front portion 15 in the prescribed direction;

[0423] a rear surface portion 18 connecting the bottom surface portion 11 and the top surface portion 12 and arranged at the rear portion 17 in the prescribed direction;

[0424] at least one front seat 21 disposed on the bottom surface portion 11 at a position closer to the front surface portion 16 than to the rear surface portion 18 ; and

[0425] At least one rear seat 22 is disposed on the bottom portion 11 at a position closer to the rear portion 18 than to the front portion 16 .

[0426] The front portion 16 includes glass (for example, a front window 4) that enables visual confirmation of the outside of the vehicle from the front seat 21 in the predetermined direction.

[0427] The vehicle body 2 is further provided with a transparent display 102 between the rear seat 22 and the front seat 21.

[0428] The transparent display 102 is configured to play a specified video content.

[0429] The prescribed video content has at least a first stage, a second stage after the first stage, and a third stage after the second stage.

[0430] A first average time interval of scene switches in the first stage is longer than a second average time interval of scene switches in the third stage.

[0431] <Technology E2>

[0432] In the vehicle 1 described in the technique E1,

[0433] The device further includes a speaker 106 for broadcasting sound to the rear seat 22.

[0434] During at least a portion of the third phase, the speaker 106 outputs bird chirping sounds.

[0435] <Technology E3>

[0436] In the vehicle 1 described in the technique 1 or the technique E2,

[0437] The first stage of the prescribed video content encourages the viewer to relax,

[0438] The second stage of the prescribed video content induces the viewer to sleep,

[0439] The third stage of the prescribed video content prompts viewers to wake up.

[0440] <Technology E4>

[0441] The vehicle 1 according to any one of Techniques E1 to E3 further includes:

[0442] A front room 23 in which the front seat 21 is arranged;

[0443] a rear room 24 in which the rear seat 22 is disposed; and

[0444] The partition wall 31 is provided to separate the front chamber 23 from the rear chamber 24, and the transparent display 102 is arranged on the partition wall 31.

[0445] The vehicle 1 includes a light emitting unit 107 capable of adjusting light color and light intensity, and the light emitting unit 107 is disposed in at least one of the following parts:

[0446] A partition wall rear chamber side surface portion 32 on the rear chamber 24 side of the partition wall 31;

[0447] The bottom portion 11 connected to the rear chamber 24;

[0448] The top surface portion 12 connected to the rear chamber 24;

[0449] The rear portion 18 connected to the rear chamber 24;

[0450] The left side surface 13 connected to the rear chamber 24; and

[0451] The right side surface 14 connected to the rear chamber 24,

[0452] The light color and / or the light intensity of the light emitting unit 107 changes in accordance with the predetermined video content and the passage of time of the predetermined video content.

[0453] <Technology E5>

[0454] In the vehicle 1 described in any one of Techniques E1 to E4,

[0455] It also includes a fragrance generating unit 108 for generating fragrance.

[0456] The fragrance generated by the fragrance generating unit 108 changes in accordance with the predetermined video content and the passage of time of the predetermined video content.

[0457] The above embodiment is described with reference to the attached drawings, but the present disclosure is not limited to this example. It is obvious that those skilled in the art can think of various modification examples, correction examples, replacement examples, additional examples, deletion examples, and equivalent examples within the scope of the claims, and it can be understood that these examples also belong to the protection scope of the present disclosure. In addition, the various constituent elements in the above embodiment can be arbitrarily combined within the scope of the main purpose of the invention.

[0458] In addition, the present application is based on Japanese patent applications filed on November 30, 2022 (Japanese Patent Application No. 2022-191768, Japanese Patent Application No. 2022-191769) and Japanese patent applications filed on March 24, 2023 (Japanese Patent Application No. 2023-048200, Japanese Patent Application No. 2023-048201, Japanese Patent Application No. 2023-048202), and the contents of these applications are incorporated herein by reference.

[0459] Industrial Applicability

[0460] The technology disclosed herein contributes to the realization of a vehicle that enables passengers to travel more comfortably.

[0461] Description of Reference Numerals

[0462] 1: vehicle; 2: vehicle body; 3A: first wheel; 3B: second wheel; 3C: third wheel; 3D: fourth wheel; 4: front window; 5: rear door window; 6: rear window; 7: instrument panel; 11: bottom face; 12: top face; 13: left face; 14: right face; 15: front; 16: front face; 17: rear; 18: rear face; 21: front seat; 22: rear seat; 23: front room; 24: rear room; 31: next door; 32: next door rear room side face; 100: ECU; 101: IV I system; 102: transparent display; 103: self-luminous display; 104: dimming film; 105: amplifier; 106: speaker; 107: light-emitting unit; 108: fragrance generating unit; 109: operating unit; 110: vehicle network; 210: video of nature; 220: video of sunset; 230: video of sunrise; 240: video of flowers; 300: boundary line; 401, 402: dimming film; 411: blackout curtain; 420: video of waterwheel; 421: waterwheel; 450: outer frame.

Claims

1. A vehicle, comprising at least: A first wheel connected to the vehicle body; A second wheel connected to the vehicle body; A third wheel connected to the vehicle body; and a fourth wheel connected to the vehicle body, in, The vehicle can travel in a predetermined direction using the first wheel, the second wheel, the third wheel, and the fourth wheel. The vehicle body comprises: a bottom surface portion and a top surface portion, wherein the bottom surface portion and the top surface portion are arranged along the specified direction; a left side surface connecting the bottom surface and the top surface and arranged on the left side along the specified direction; a right side face portion connecting the bottom face portion and the top face portion and arranged on the right side along the specified direction; a front portion connecting the bottom portion and the top portion and arranged at the front in the specified direction; a rear surface portion connecting the bottom surface portion and the top surface portion and arranged at the rear portion in the prescribed direction; at least one front seat disposed on the bottom surface portion at a position closer to the front surface portion than to the rear surface portion; and at least one rear seat arranged on the bottom surface portion at a position closer to the rear surface portion than to the front surface portion, The front portion includes glass that enables visual confirmation of the outside of the vehicle from the front seat toward the predetermined direction. The vehicle body is further provided with a transparent display having a variable transmittance between the rear seat and the front seat. The outside of the vehicle can be visually confirmed from the rear seat through the transparent display and the glass. The transparent display is set to play specified video content, The prescribed video content has at least a first stage, a second stage after the first stage, a third stage after the second stage, and a fourth stage after the third stage. At the beginning of the first phase, the variable transmittance of the transparent display is a first transmittance, At the end of the first phase, the variable transmittance of the transparent display is a second transmittance that is smaller than the first transmittance.

2. The vehicle according to claim 1, wherein: In the third stage of the prescribed video content, the variable transmittance of the transparent display is a third transmittance smaller than the first transmittance, After a certain time has passed since the fourth stage started, the variable transmittance of the transparent display is a fourth transmittance greater than the third transmittance.

3. The vehicle according to claim 2, wherein: The third transmittance is equal to the second transmittance.

4. The vehicle according to claim 1, wherein: The first stage of the prescribed video content encourages the viewer to relax, The second stage of the prescribed video content induces the viewer to sleep, The third stage of the prescribed video content causes the viewer to wake up. The fourth stage of the prescribed video content at least does not induce relaxation, sleep or wakefulness to the viewer.

5. The vehicle according to any one of claims 1 to 4, wherein: The first average transmittance is greater than the second average transmittance, the first average transmittance being the average of the variable transmittance of the transparent display in the first stage of the prescribed video content, and the second average transmittance being the average of the variable transmittance of the transparent display in the second stage of the prescribed video content.

6. The vehicle according to any one of claims 1 to 4, wherein: The third average transmittance is greater than the fourth average transmittance, the third average transmittance being the average of the variable transmittance of the transparent display in the fourth stage of the prescribed video content, and the fourth average transmittance being the average of the variable transmittance of the transparent display in the third stage of the prescribed video content.

7. The vehicle according to claim 1, wherein: The transparent display includes at least a self-luminous display and a sheet having variable light transmittance.

8. The vehicle according to claim 1, further comprising: a front room in which the front seat is arranged; a rear room in which the rear seat is arranged; and a partition wall provided to separate the front room from the rear room, wherein the transparent display is arranged on the partition wall, The vehicle includes a light emitting unit capable of adjusting light color and light intensity, wherein the light emitting unit is disposed in at least one of the following parts: a side surface of the bulkhead adjacent to the rear chamber; The bottom portion connected to the rear chamber; The top surface connected to the rear chamber; The rear portion connected to the rear chamber; The left side face connected to the rear chamber; and The right side of the face connected to the rear chamber, The light color and / or the light intensity of the light emitting unit changes in accordance with the predetermined video content and the passage of time of the predetermined video content.

9. The vehicle of claim 1, wherein: It also includes a fragrance generating unit for generating fragrance, The fragrance generated by the fragrance generating unit changes in accordance with the predetermined video content and the passage of time of the predetermined video content.

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