JP7460382B2 - Display system and display device - Google Patents

Description

The present invention relates to a display system and a display device.

2. Description of the Related Art Conventionally, a technique for displaying an advertisement on a monitor provided on a seat used by a passenger in a moving object such as a taxi is known (see, for example, Patent Document 1).

Patent No. 6557434

One way to effectively display advertisements is to make the monitor larger. However, if the monitor is installed within the driver's field of vision when checking the situation outside the vehicle, the monitor blocks the driver's view, making it difficult for the driver to check the situation outside the vehicle. For example, if the monitor installed on the passenger seat is large, or if the monitor is installed on the window next to the passenger seat, the area in which the driver can see outside the vehicle becomes narrower.

Therefore, the present invention has been made in consideration of these points, and aims to provide, as an example, a display system and display device that allows passengers to use a monitor without blocking the driver's view.

A display system according to a first aspect of the present invention includes a display device with variable transmittance and provided in a taxi, and a control device that controls the display device, and the control device controls the state of the taxi. an information acquisition unit that acquires state information indicating the status information; a transmittance determining unit that determines a set transmittance that is a transmittance to be set for the display device based on the state information; and a transmittance determining unit that sets the set transmittance to the display device. and a display control section that changes the transmittance of the display device by changing the transmittance of the display device.

The information acquisition unit may acquire the status information indicating the status of the taxi inputted into an information terminal into which the taxi driver can input the status of the taxi.

The information acquisition unit may acquire the status information indicating the status of a seatbelt in a rear seat of the taxi.

The display control unit may cause the display device to display the content selected based on the status information.

The display device is provided at the rear of the driver's seat of the taxi, and the display control unit controls the transmittance when the status information indicates that the taxi is occupied, and the transmittance when the status information indicates that the taxi is vacant. The transmittance may be lower than that of .

The control device further includes a request reception unit that receives a request from a passenger sitting in the rear seat of the taxi, and the display control unit adjusts the transmittance based on the request received by the request reception unit. may be changed.

The display control unit may increase the transparency when the request receiving unit receives a request from the passenger to ask the driver a question, compared to when the request is not received.

The display device may be provided on a door glass of the taxi, and the display control unit may switch between displaying the content in an orientation suitable for viewing from inside the taxi and displaying the content in an orientation suitable for viewing from outside the taxi based on the state information.

The display control unit displays the content in an orientation suitable for viewing from inside the taxi when the status information indicates that the taxi is occupied, and when the status information indicates that the taxi is vacant, The content may be displayed in an orientation suitable for viewing from outside the taxi.

The display device may include a display panel with variable transmittance, and a projection device provided in the taxi at a position capable of projecting an image onto the display panel.

A display device according to a second aspect of the present invention is a display device provided in a taxi, and includes an information acquisition unit that acquires status information indicating the status of the taxi, and an information acquisition unit that acquires status information indicating the status of the taxi; The display device includes a transmittance determination unit that determines a set transmittance that is a set transmittance, and a display control unit that changes the transmittance of the display device by setting the set transmittance in the display device.

According to the present invention, for example, passengers can use the monitor without blocking the driver's view.

1 is a diagram showing a vehicle T provided with a display system S according to an embodiment of the present invention. 2 is a diagram showing an example of a state of a display panel 2. FIG. 1 is a diagram showing a configuration of a display system S according to an embodiment of the present invention. 1 is a diagram showing a vehicle T provided with a display system S according to a first modified example. It is a figure which shows the display state of the display system S when the vehicle is picking up a vehicle and when the vehicle is actually traveling according to a first modification. 7 is a diagram showing the relationship between state information and the states of display panel 2 and display panel 5 according to a first modification. FIG. FIG. 13 is a diagram showing a configuration of a display device 6 according to a fifth modified example.

[Overview of Display System S]
Fig. 1 is a diagram showing a vehicle T provided with a display system S according to an embodiment of the present invention. The display system S is installed in a vehicle T such as a taxi or a bus. Fig. 1(a) shows the vehicle T seen from the side. Fig. 1(b) shows the vehicle T seen from above. The vehicle T is provided with a projection device 1, a display panel 2, a fare meter 3, and a control device 4. The projection device 1 and the display panel 2 constitute a display device controlled by the control device 4.

The projection device 1 is a device that projects an image onto the display panel 2, and is, for example, a projector. The projection device 1 is provided at a position in the vehicle T where it can project an image onto the display panel 2. The projection device 1 is installed, for example, on the ceiling of the vehicle T, and projects content obtained from the control device 4 onto the display panel 2. The content is data including images and text.

The display panel 2 is, for example, a light-adjusting film or panel with variable transmittance that is provided in the vehicle T. The display panel 2 displays the image projected by the projection device 1. The display panel 2 changes the light transmittance based on a notification from the control device 4.

The display panel 2 is provided, for example, behind the driver's seat C3. In the example shown in FIG. 1(b), the display panel 2 is provided between the passenger seat C1 and the rear seat C2. The display panel 2 is used, for example, by attaching it to a security board provided between the passenger seat C1 and the rear seat C2. The display panel 2 may have a width equivalent to two seats, the passenger seat C1 and the driver's seat C3. The display panel 2 may also be attached to the entire security board or be integrated with the security board.

The fare meter 3 is a device that displays the fare. By operating the fare meter 3, the driver can set the status of the vehicle T in the fare meter 3, for example, empty, picking up a passenger, occupied, payment in progress, etc. The fare meter 3 notifies the control device 4 of status information indicating the set status.

The control device 4 controls a display device including a projection device 1 and a display panel 2. The control device 4 determines the transmittance to be set on the display panel 2 (hereinafter referred to as "set transmittance") based on the status information acquired from the charge meter 3, for example, and applies the determined set transmittance to the display panel 2. Send to. Further, the control device 4 determines content to be displayed on the display panel 2 based on the status information acquired from the charge meter 3, and transmits the determined content to the projection device 1.

Figure 2 is a diagram showing an example of the state of the display panel 2. Figure 2 (a) shows the state of the display panel 2 when the vehicle T is empty. When the vehicle T is empty, the control device 4 notifies the display panel 2 of a first set transmittance through which the display panel 2 can transmit light so that the driver can see the rear window. Upon receiving the first set transmittance, the display panel 2 increases the transmittance based on the received first set transmittance compared to when the vehicle is actually in motion. By increasing the transmittance in this way, the driver can drive without obstructing his or her view.

When the vehicle T is in an occupied state, the control device 4 notifies the display device of a second set transmittance that is lower than the first set transmittance when the vehicle T is empty. The second transmittance is a transmittance that corresponds to a state in which the passengers in the rear seats can view the image projected by the projection device 1 onto the display panel 2. The second transmittance may be a transmittance that corresponds to a state in which the driver cannot view the passengers in the rear seats. Upon receiving the second set transmittance, the display panel 2 lowers the set transmittance of the display panel 2 to a value lower than that when the vehicle T is empty, as shown in FIG. 2B, and the display panel 2 is in a state in which the content projected by the projection device 1 can be displayed. By lowering the transmittance of the display panel 2 in this manner, the passengers can view the content.
The configuration of the control device 4 will be described in detail below.

[Configuration of control device 4]
FIG. 3 is a diagram showing the configuration of the display system S according to the embodiment of the present invention. The control device 4 includes a storage section 41 and a control section 42. The control unit 42 includes an information acquisition unit 421, a transmittance determination unit 422, and a display control unit 423.

The storage unit 41 includes, for example, a ROM (Read Only Memory) and a RAM (Random Access Memory). The storage unit 41 stores programs executed by the control unit 42. Furthermore, the storage unit 41 stores content such as text or images projected by the projection device 1.

The control unit 42 includes, for example, a CPU (Central Processing Unit). The control unit 42 functions as an information acquisition unit 421, a transmittance determination unit 422, and a display control unit 423 by executing a program stored in the storage unit 41.

The information acquisition unit 421 acquires status information indicating the status of the vehicle T from the fare meter 3 via a communication interface for transmitting and receiving data to and from the fare meter 3. The information acquisition unit 421 notifies the transmittance determination unit 422 of the status information acquired from the fare meter 3. The transmittance determination unit 422 determines the set transmittance, which is the transmittance to be set in the display panel 2, based on the status information received from the information acquisition unit 421.

For example, when the status information received from the fare meter 3 indicates that the vehicle is empty, the transmittance determination unit 422 determines the transmittance of the display panel 2 to the first set transmittance so that the display panel 2 is in a transparent state to prevent blocking of the view of the driver of the vehicle T as shown in FIG. 2(a).

On the other hand, if the status information received from the fare meter 3 indicates that the vehicle is in operation, the display panel 2 is set to a non-transparent state so that the display panel 2 can display content as shown in FIG. 2(b). The transmittance of the display panel 2 is determined to be the second set transmittance so that. The transmittance determination unit 422 notifies the display control unit 423 of the determined set transmittance and the status information received from the charge meter 3.

The display control unit 423 controls the projection device 1 and the display panel 2 via a cable or wirelessly. The display control unit 423 changes the transmittance of the display panel 2 by setting the set transmittance received from the transmittance determination unit 422 to the display panel 2. Based on the set transmittance received from the transmittance determination unit 422, the display control unit 423 sets the second set transmittance when the status information indicates that the vehicle is in operation to be lower than the first set transmittance when the status information indicates that the vehicle is empty.

The display control unit 423 causes the display panel 2 to display the selected content based on the status information. The display control unit 423 acquires the content stored in the storage unit 41 in association with the state information, and transmits the acquired content to the projection device 1. The display control unit 423 controls the transmittance of the display panel 2 based on the set transmittance received from the transmittance determining unit 422. Specifically, when the display control unit 423 acquires the first set transmittance from the transmittance determining unit 422, the display control unit 423 sets the transmittance of the display panel 2 higher than the second set transmittance, and sets the transmittance of the display panel 2 to be higher than the second set transmittance. When the second set transmittance is acquired from 422, the transmittance of the display panel 2 is set lower than the first set transmittance.

The display control unit 423 causes the projection device 1 to project the content corresponding to the status information, and causes the display panel 2 to display the content. For example, when the status information indicates that the vehicle is in operation, the display control unit 423 acquires advertising content to be shown to passengers from the storage unit 41 and causes the projection device 1 to project the advertisement content. If the status information indicates that the fare is being paid, the fare acquired from the fare meter 3 may be displayed on the display device.

As described above, the control device 4 controls the transmittance of the display panel 2 based on the state of the vehicle T, and also controls whether the projection device 1 projects content onto the display panel 2. By operating the control device 4 in this manner, the display system S can display content to be shown to passengers on the display panel 2 when the vehicle is in use, and can widen the driver's field of view when the vehicle is empty.

[First modification]
FIG. 4 is a diagram showing a vehicle T equipped with a display system S according to this modification. In the above explanation, the case where the display device including the projection device 1 and the display panel 2 is provided at the rear of the driver's seat C3 of the vehicle T has been exemplified, but for example, as shown in FIG. The display panel 5 may be installed on the door glass. The display panel 5 has the same function as the display panel 2.

When the display panel 5 is provided on the door glass of the vehicle T, the display control unit 423 displays the content in an orientation suitable for viewing from inside the vehicle T, or displays the content in an orientation suitable for viewing from the outside of the vehicle T, based on the status information. Switch whether the content is displayed in an orientation suitable for viewing. Specifically, the display control unit 423 displays the content in an orientation suitable for viewing from inside the vehicle T when the status information indicates that the vehicle is in use. The display control unit 423 displays the content in an orientation suitable for viewing from the outside of the vehicle T when the status information indicates that the vehicle T is empty or being picked up.

FIG. 5 is a diagram showing the display state of the display system S when the vehicle is picking up the vehicle and when the vehicle is actually driving according to the present modification. FIG. 5(a) shows a case where the status information indicates that the vehicle is picking up a vehicle. When the status information indicates that the passenger is on the outside of the vehicle T, the display control unit 423 adjusts the projection device so that the content is projected onto the display panel 5 in an orientation that allows the passenger to easily view the content from outside the vehicle T. Control 1. For example, the display control unit 423 causes the projection device 1 to project content that appears as mirror text when viewed from inside the vehicle.

Figure 5 (b) shows a case where the status information is in a real vehicle. When the status information is in a real vehicle, the passenger is inside the vehicle T, and so the display control unit 423 causes the projection device 1 to project the content so that the passenger can see it from inside the vehicle T. The display control unit 423 switches the orientation of the content according to the status information in this way, allowing the passenger to view the content without feeling uncomfortable.

Note that multiple display panels may be installed in vehicle T. For example, display panel 2 may be installed behind the driver's seat C3 of vehicle T, and display panel 5 may be installed on the door glass next to the rear seat C2. When multiple display panels are installed in vehicle T in this manner, display control unit 423 may switch the display panel that displays content based on the status information, or display content simultaneously on multiple display panels.

FIG. 6 is a diagram showing the relationship between the state information and the states of the display panel 2 and the display panel 5 according to the first modification. As shown in FIG. 6, when the status information indicates "vacant", the display control unit 423 increases the transmittance of the display panel 2 and the display panel 5, and displays the content on the display panel 2 and the display panel 5. will not be displayed.

When the status information indicates "picking up", the display control unit 423 increases the transmittance of the display panel 2 to the same level as when the vehicle is empty, and does not display content on the display panel 2. On the other hand, the display control unit 423 decreases the transmittance of the display panel 5, and causes the display panel 5 to display, for example, the name of the passenger who has reserved the vehicle T.

When the status information indicates "actual vehicle in progress", the display control unit 423 lowers the transmittance of the display panels 2 and 5, and displays advertisements on the display panels 2 and 5 to be shown to passengers, for example. Display content.

When the status information indicates "Paying", the display control unit 423 lowers the transmittance of the display panel 2 as in the case of the actual vehicle, and displays the boarding fare obtained from the fare meter 3 on the display panel 2, for example. indicate. On the other hand, the display control unit 423 lowers the transmittance of the display panel 5 as in the actual vehicle, and causes the display panel 5 to display advertising content for passengers to see as in the actual vehicle. The display control unit 423 may cause the display panel 5 to display a message prompting the user to check for lost items, a thank you message, or the like.

[Second Modification]
In the above description, an example has been given in which the control device 4 determines the set transmittance and the content based on the status information acquired from the fare meter 3, but the method of determining the set transmittance and the content is not limited to the method based on the status information acquired from the fare meter 3. For example, the information acquisition unit 421 may acquire status information indicating the status of the vehicle T inputted into an information terminal such as a tablet or smartphone that allows the driver of the vehicle T to input the status of the vehicle T, or status information indicating the status of the seat belts in the rear seats of the vehicle T. When the information acquisition unit 421 acquires information indicating the status of the seat belts in the rear seats, the information acquisition unit 421 determines that a state in which the seat belts are not fastened means that the vehicle is empty, and that a state in which the seat belts are fastened means that the vehicle is in operation.

[Third modification]
In the above description, the display control unit 423 changes the transmittance of the display panel 2 based on the status information, but the display control unit 423 changes the transmittance based on the passenger's instructions. Good too.

In this case, the display panel 2 is provided with a touch panel, and the display control unit 423 further functions as a request receiving unit that receives requests from a passenger sitting in the rear seat C2 of the vehicle T. The display control unit 423 changes the transmittance of the display panel 2 based on the received request.

Specifically, the display control unit 423 causes the display panel 2 to display an operation screen for setting the transmittance of the display panel 2 while a passenger is riding in the vehicle T. The display control unit 423 determines the set transmittance based on the operation performed by the passenger on the operation screen, and changes the transmittance of the display panel 2 based on the determined set transmittance. By operating the display control unit 423 in this manner, it is possible to prevent the passenger's line of sight from being obstructed by the display panel 2 when the passenger wants to see the outside scene.

Furthermore, the display control unit 423 functioning as a request receiving unit may cause the display panel 2 to display an operation screen for receiving a request for a passenger to ask the driver a question. In this case, when a request for a passenger to ask the driver a question is received, the display control unit 423 causes the display device to display the screen with a higher transmittance than when the request is not received. By operating the display control unit 423 in this manner, it becomes less likely that a situation will occur in which a passenger wants to ask the driver a question but is unable to do so because the display panel 2 is blocking the view.

[Fourth Modification]
In the above description, the control device 4 is a device separate from the projection device 1 and the display panel 2 . However, the projection device 1 may include the control device 4 .

[Fifth modification]
In the above description, the case where the display device is constituted by the projection device 1 and the display panel 2 has been exemplified, but the display device may be a display having a light emitting function.

FIG. 7 is a diagram showing the configuration of a display device 6 according to this modification. The display device 6 includes a display section 43 in addition to the configuration that the control device 4 has. The display section 43 is a display whose transmittance can be changed, and has, for example, a structure in which a transparent scattering liquid crystal and an electrode are sandwiched between glass substrates.

The information acquisition unit 421 and the transmittance determination unit 422 of the display device 6 shown in FIG. 7 have the same functions as the information acquisition unit 421 and the transmittance determination unit 422 of the control device 4 shown in FIG. 4. The display control unit 423 controls the display unit 43 so that the transmittance is determined by the transmittance determination unit 422. When displaying content on the display unit 43, the display control unit 423 lowers the transmittance of the display unit 43 compared to when content is not displayed. In this way, the display device 6 has a display unit 43 that can change the transmittance, so there is no need to install a projection device 1 in the vehicle T, and the space inside the vehicle is increased.

[Effects of display system S according to this embodiment]
As described above, when the vehicle T is empty, the display system S can widen the driver's field of view by increasing the transmittance of the display device. Furthermore, when the status information of the vehicle T indicates that the vehicle is actually in operation, passengers can use the display device as a monitor by lowering the transmittance of the display device.

Further, when a display device is provided on the window of the vehicle T, the display system S displays the content toward the outside of the vehicle T when the status information of the vehicle T is "picking up", and displays the content toward the outside of the vehicle T. When the vehicle T is in a real vehicle, the content is displayed toward the inside of the vehicle T. As a result, the display device can display content appropriate for the location of the passenger. Furthermore, by providing the display panel 2 between the passenger seat C1, the driver seat C3, and the rear seat C2, the space inside the vehicle T can be used effectively and the effect of displaying content such as advertisements can be enhanced. can.

Although the present invention has been described above using the embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments, and various modifications and changes can be made within the scope of the gist. be. For example, all or part of the device can be functionally or physically distributed and integrated into arbitrary units. In addition, new embodiments created by arbitrary combinations of multiple embodiments are also included in the embodiments of the present invention. The effects of the new embodiment resulting from the combination have the effects of the original embodiment.

Reference Signs List 1 Projection device 2 Display panel 3 Fee meter 4 Control device 5 Display panel 6 Display device 41 Storage unit 42 Control unit 43 Display unit 421 Information acquisition unit 422 Transmittance determination unit 423 Display control unit

Claims (13)

A display device having a variable transmittance and installed in a taxi; and a control device for controlling the display device,
The control device includes:
An information acquisition unit that acquires status information indicating the status of the taxi;
a transmittance determination unit that determines a set transmittance, which is a transmittance to be set on the display device, based on the state information;
a display control unit that changes the transmittance of the display device by setting the set transmittance on the display device;
A request receiving unit that receives a request from a passenger sitting in a back seat provided in the taxi;
having
The display control unit changes the transmittance further based on the request accepted by the request acceptance unit.
Display system. When the request receiving unit receives the request for the passenger to ask a question to the driver, the display control unit increases the transmittance compared to when the request is not received.
The display system of claim 1 . comprising a display device with variable transmittance and installed in a taxi, and a control device for controlling the display device,
The control device includes:
an information acquisition unit that acquires status information indicating the status of the taxi;
a transmittance determination unit that determines a set transmittance that is a transmittance to be set for the display device based on the state information;
a display control unit that changes the transmittance of the display device by setting the set transmittance in the display device;
a request receiving unit provided in the taxi that receives requests from passengers sitting in a rear seat;
has
The display control unit makes the transmittance higher when the request reception unit accepts the request for the passenger to ask a question to the driver than when the request is not accepted.
display system. A display device having a variable transmittance and installed in a taxi; and a control device for controlling the display device,
The control device includes:
An information acquisition unit that acquires status information indicating the status of the taxi;
a transmittance determination unit that determines a set transmittance, which is a transmittance to be set on the display device, based on the state information;
a display control unit that changes the transmittance of the display device by setting the set transmittance on the display device;
having
The display control unit increases the transmittance when the status information indicates that the vehicle is empty or in a waiting state to be picked up, to be higher than the transmittance when the status information indicates that the vehicle is in a waiting state.
Display system. The information acquisition unit acquires the status information indicating the status of the taxi inputted into an information terminal into which the taxi driver can input the status of the taxi.
A display system according to any one of claims 1 to 4. The information acquisition unit acquires the state information indicating a state of a seat belt in a rear seat of the taxi as a state of the taxi.
A display system according to any one of claims 1 to 4. the display control unit causes the display device to display the content selected based on the state information.
A display system according to any one of claims 1 to 6. The display device is provided on a door glass of the taxi,
The display control unit switches between displaying the content in an orientation suitable for viewing from inside the taxi and displaying the content in an orientation suitable for viewing from outside the taxi, based on the state information.
8. The display system of claim 7. The display control unit displays the content in an orientation suitable for viewing from inside the taxi when the status information indicates that the taxi is occupied, and when the status information indicates that the taxi is vacant, displaying the content in an orientation suitable for viewing from outside the taxi;
The display system according to claim 8. The display device includes:
A display panel with variable transmittance,
a projection device provided at a position capable of projecting an image onto the display panel in the taxi;
has,
A display system according to any one of claims 1 to 9. A display device provided in a taxi,
A display panel with variable transmittance;
a projection device for projecting an image onto the display panel;
An information acquisition unit that acquires status information indicating the status of the taxi;
a transmittance determination unit that determines a set transmittance, which is a transmittance to be set on the display panel , based on the state information;
a display control unit that changes the transmittance of the display panel by setting the set transmittance on the display panel ;
A request receiving unit that receives a request from a passenger sitting in a back seat provided in the taxi;
having
the display control unit changes the transmittance of the display panel further based on the request accepted by the request acceptance unit.
Display device. A display device provided in a taxi,
A display panel with variable transmittance;
a projection device for projecting an image onto the display panel;
An information acquisition unit that acquires status information indicating the status of the taxi;
a transmittance determination unit that determines a set transmittance, which is a transmittance to be set on the display panel , based on the state information;
a display control unit that changes the transmittance of the display panel by setting the set transmittance on the display panel ;
a request receiving unit configured to receive a request from a passenger seated in a back seat of the taxi;
having
When the request receiving unit receives the request for the passenger to ask a question to the driver, the display control unit increases the transmittance of the display panel compared to when the request has not been received.
Display device. A display device provided in a taxi,
A display panel with variable transmittance;
a projection device for projecting an image onto the display panel;
An information acquisition unit that acquires status information indicating the status of the taxi;
a transmittance determination unit that determines a set transmittance, which is a transmittance to be set on the display panel , based on the state information;
a display control unit that changes the transmittance of the display panel by setting the set transmittance on the display panel ;
having
The display control unit increases a transmittance of the display panel when the status information indicates that the vehicle is empty or in a waiting state to be picked up, to be higher than a transmittance of the display panel when the status information indicates that the vehicle is in a waiting state.
Display device.

Images