Guide display device and guide display method, and display device and method for switching display contents

Abstract

The present invention provides the simple operation for displaying the information that is expected to be necessary for the user and the simplified procedure of the hands-free operation when displaying the map information on the screen. The display device 20 in which an arrangement state of the screen can be selected between a first state and a second state displays on the screen the detailed information of a destination or its surrounding area such as parking lot information, an access route guide to the transportation facilities, and information of the facility of the destination is displayed on the screen if a change of the arrangement of the screen is detected, if the destination has been set in advance, and if a distance between a current position and the destination is within a predetermined distance. Further, it comprises a display control means 27 for displaying at least a portion of the information acquired by the information acquisition means 23 if the change in the arrangement state of the screen is detected after the external equipment detection means 25 detected the connection of the external equipment 4.

Description

TECHNICAL FIELD

The present invention relates to a guide display device and a guide display method, and a display device and a method for switching display contents.

BACKGROUND ART

Car navigation systems and PNDs (Personal/Potable Navigation Device) have been widely used as guide display devices for displaying a user's current position on a map and guiding a route to its destination. In these devices, the current position is detected by the GPS (Global Positioning System), the map of the area around the current position is extracted from map information stored in a storage device or acquired through a communication line, and the map and the current position on the map are displayed. Then, the destination and, if necessary, the way point are registered so that the route to the destination can be searched to provide the route navigation to the user. Typically, the map can be displayed not only in two-dimensional map but also in bird's eye view in which the landmark can be viewed.

The car navigation system may use a hard disc or a DVD having a large capacity as the storage device for storing the map information and provide the detailed information and various functions to the user. On the other hand, the PND use a flash memory having a relatively small capacity as the storage device, so that, while the amount of the stored information and the functions are limited, it is advantageous for its inexpensiveness and easy use. Therefore, the PND is used for other purposes than the vehicle-mounted use. Further, devices in which the limited map information only is stored in the storage device and the detailed map information is acquired through the communication line are well known.

Further, with respect to the car navigation system and the PND, there disclosed a device in which, when the screen is switched between a horizontal arrangement and a vertical arrangement, a horizontally arranged map and a vertically arranged map are switched alternatively according to the arrangement of the screen (for example, Patent document 1), and a device in which, among the information of the shop, facility, and the like located in the destination, the information which matches the user taste is displayed (for example, Patent document 2).

Patent Document 1: JP Patent Application Publication No. H8-166245

Patent Document 2: JP Patent Application Publication No. 2006-58193

It is prohibited by the Road Traffic Act to directly touch a portable telephone device to talk on the phone when driving a vehicle. But, it is not prohibited to talk on the phone without touching the portable telephone device by using the hands-free function. Patent document 3 discloses a hands-free device for achieving such a hands-free function.

This hands-free device is used with the portable telephone device connected thereto. When the portable telephone device is connected to the hands-free device, the information stored in the portable telephone device is transferred to the hands-free device. Further, buttons of the hands-free device correspond to buttons of the portable telephone device. This allows the operation with larger buttons on the hands-free device instead of the smaller buttons on the portable telephone device. Therefore, the driver can make a calling operation of the portable telephone device safely and correctly even when driving the vehicle.

FIG. 29 is a flowchart showing an operation flow when the hands-free device is used. As shown in FIG. 29, first, a hands-free button is pressed down (step S40). A telephone directory or a calling/called operation history is then read out (step S41). A destination is then selected (step S42). Finally, a send button is pressed down (step S43). Thereby, the originating process is made (step S44).

Further, Patent document 4 discloses a device in which the destinations are sequentially indicated by voice. This eliminates the need for the driver to look at the list of the destinations. Therefore, safer drive can be achieved.

Patent document 3: JP Patent Application Publication No. 2004-134977

Patent document 4: JP Patent Application Publication No. H10-190810

DISCLOSURE OF THE INVENTION

Problems to be Solved by the Invention

The above-described hands-free device is useful for reducing the burden at the driver. However, the driver is still required to perform the multiple procedures as shown in FIG. 29. Therefore, it will be useful that apart of these procedures can be omitted.

The first objective of the present invention is to provide a guide display device and a guide display method that can display, with a simple operation, the information that is expected to be necessary for the user.

Further, the present invention is invented under such a background, and therefore the second purpose is to provide a display device and a method for switching the display contents that can simplify the procedures of the hands-free operation.

Hereafter, for the purpose of explanation, the inventions that achieve the first purpose and the second purpose are referred to as an invention I and an invention II, respectively.

Means for Solving the Problems

Invention I

In order to achieve the first objective, a guide display device comprises a current position acquisition means for acquiring a current position; a destination storage means for storing a destination; a display means for displaying an image; a display control means for controlling a display content; and an arrangement change detection means for detecting that an arrangement of a screen of the display means has been changed, wherein the display control means causes the display means to display detailed information of the destination or its surrounding area if the arrangement of the screen is changed under a state where a distance between the current position and the destination is less than a predetermined distance. It is preferable that the display means displays map information.

The display control means may cause the display means to display information of a facility of the destination or its peripheral facility as the detailed information. If the destination is a facility of transportation facilities or if there is a facility of transportation facilities around the destination, the display control means preferably causes the display means to display information of an access route to the facility as the detailed information.

The guide display device may further comprises a means for determining what transportation is used. In this case, if the transportation is a vehicle, the display control means may cause the display means to display information of a parking lot and, otherwise, to display information of a facility of the destination or its peripheral facility.

As the detailed information of the destination or its surrounding area, information stored in the storage means together with the map information and/or information downloaded by using a communication means may be used.

Regarding a guide display method of the present invention, the guide display method for displaying guide information on a screen comprises the step of displaying detailed information of a destination or its surrounding area on the screen if a change in an arrangement of the screen is detected, if the destination has been set in advance, and if a distance between a current position and the destination is less than a predetermined distance.

Invention II

In order to achieve the second objective, a display device in which an arrangement state of the screen can be selected between a first state and a second state that comprises an external equipment detection means for detecting a connection of external equipment; an information acquisition means for acquiring information from the external equipment if the external equipment detection means detects the connection of the external equipment; a screen state detection means for detecting whether the arrangement state of the screen is in the first state or the second state; and a display control means for displaying at least a portion of the information acquired by the information acquisition means if the change in the arrangement state of the screen is detected by the screen state detection means after the external equipment detection means detected the connection of the external equipment.

Here, the external equipment is a portable telephone device, and the display control means displays predetermined image information on the screen if a calling operation of the portable telephone device has not been made and the change in the arrangement state of the screen is again detected by the screen state detection means after the at least a portion of the information acquired by the information acquisition means was displayed on the screen. For example, the predetermined image information is image information of a keyboard.

Further, the display control means may prohibit the display of the information acquired by the information acquisition means if there is no predetermined operation input even if the change in the arrangement state of the screen is detected by the screen state detection means after the external equipment detection means detected the connection of the external equipment.

Further, another aspect of the present invention is a method for switching a display content. The method for switching a display content of the present invention is a method for switching a display content for use in a display device in which an arrangement state of the screen can be selected between a first state and a second state. The method comprises the steps of detecting a connection of external equipment; acquiring information from the external equipment if the connection of the external equipment is detected; detecting whether the arrangement state of the screen is in the first state or the second state; and displaying at least a portion of the information acquired by the step of acquiring, if the change in the arrangement state of the screen is detected after the connection of the external equipment was detected.

Here, the display of the information acquired by the step of acquiring may be prohibited if there is no predetermined operation input even if the change in the arrangement state of the screen is detected after the connection of the external equipment was detected.

Another aspect of the present invention is a program. That is, a program of the present invention, when installed in an information processing device, instructs the information processing device to perform a function as a display device in which an arrangement state of a screen can be selected between a first state and a second state. The program is configured to implement an external equipment detection function for detecting a connection of external equipment; an information acquisition function for acquiring information from the external equipment if the external equipment detection function detects the connection of the external equipment; a screen state detection function for detecting whether the arrangement state of the screen is in the first state or the second state; and a display control function for displaying at least a portion of the information acquired by the information acquisition function if the change in the arrangement state of the screen is detected by the screen state detection function after the external equipment detection function detected the connection of the external equipment.

Advantage of the Invention

According to the invention I, the information that is expected to be necessary for the user can be displayed by a simple operation of changing the arrangement of the screen.

According to the invention II, the procedure of the hands-free operation can be simplified.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows a first embodiment of the invention I, which illustrates a usage of a guide display device.

FIG. 2 is a block diagram showing a circuit arrangement of the guide display device of FIG. 1 according to the invention I.

FIG. 3 is a flowchart showing an example of an operation of the guide display device of FIG. 1 according to the invention I.

FIG. 4 illustrates (A) a change in arrangement and (B) an associated display switching of the screen of the guide display device of FIG. 1 according to the invention I.

FIG. 5 shows an example display when a parking lot C is selected in the lower window of FIG. 4.

FIG. 6 shows an example view in the guide display device of FIG. 1 according to the invention I in which an item selected from the display of FIG. 5 is displayed with a horizontal arrangement.

FIG. 7 shows an example view in the guide display device of FIG. 1 according to the invention I for displaying detailed information of a destination or its surrounding area in a balloon form when the arrangement of the screen has been changed.

FIG. 8 shows an example view in the guide display device of FIG. 1 according to the invention I for displaying detailed information of a destination or its surrounding area by dividing the screen into an upper and a lower windows where the route guide display is in the upper and the list display is in the lower when the arrangement of the screen is changed.

FIG. 9 is a block diagram showing a second embodiment of the invention I, which illustrates another example of a circuit arrangement of the guide display device of FIG. 1.

FIG. 10 is a flowchart showing an example operation of the guide display device of FIG. 9 according to the invention I, which illustrates an example for displaying information related to parking lots if a transportation is a vehicle and, otherwise, displaying information related to a facility of a destination and facilities nearby.

FIG. 11 shows an example of a process for detecting the change in arrangement of the screen of the guide display device of FIG. 1 according to the invention I.

FIG. 12 shows another example of a process for detecting the change in arrangement of the screen of the guide display device of FIG. 1 according to the invention I.

FIG. 13 shows a display device according to the invention II in which (A) is a view where the display is in a horizontal arrangement and (B) is a view where the display is in a vertical arrangement.

FIG. 14 shows an example of a process for detecting a usage of the screen of the display device of FIG. 13 according to the invention II.

FIG. 15 shows another example of a process for detecting a usage of the screen of the display device of FIG. 13 according to the invention II.

FIG. 16 is a block diagram of the display device of FIG. 13 according to the invention II.

FIG. 17 illustrates a connection between the display device of FIG. 13 according to the invention II and a portable telephone device, in which (A) shows a state before an establishment of the connection and (B) shows a state after the establishment of the connection.

FIG. 18 illustrates a change in usage of the screen in the display device of FIG. 13 according to the invention II, in which (A) shows a navigation display state and (B) shows a list display state.

FIG. 19 is a flowchart illustrating a procedure in a control unit according to the first embodiment of the switching operations of display contents in the display device of FIG. 13 according to the invention II.

FIG. 20 illustrates a hands-free setting button in the display device of FIG. 13 according to the invention II.

FIG. 21 illustrates the switching of the display contents when the hands-free setting button is pressed down in the display device of FIG. 13 according to the invention II, in which (A) shows a navigation display state and (B) shows a list display state.

FIG. 22 illustrates the switching of the display contents when the hands-free setting button is not pressed down in the display device of FIG. 13 according to the invention II, in which (A) is a view where the display is in a horizontal arrangement and (B) is a view where the display is in a vertical arrangement.

FIG. 23 shows the switching of the display contents when the hands-free setting button is pressed down after the window has been in a vertical arrangement in the display device of FIG. 13 according to the invention II, in which (A) shows a navigation display state and (B) shows a list display state.

FIG. 24 is a flowchart illustrating a procedure in a control unit according to the second embodiment of the switching operation of the display contents in the display device of FIG. 13 according to the invention II.

FIG. 25 shows a process before a keyboard is displayed on the screen in the display device of FIG. 13 according to the invention II, in which (A) shows a navigation display state, (B) shows a list display state, and (C) shows a keyboard display state.

FIG. 26 is a flowchart illustrating a procedure in a control unit according to the third embodiment of the switching operation of the display contents in the display device of FIG. 13 according to the invention II.

FIG. 27 illustrates an embodiment in which a wireless transceiver is used for the communication between the display device of FIG. 13 according to the invention II and a portable telephone device.

FIG. 28 illustrates an embodiment in which the display device of FIG. 13 according to the invention II and a portable telephone device are connected, in which (A) is a view where the screen is in a horizontal arrangement and (B) is a view where the screen is in a vertical arrangement.

FIG. 29 is a flowchart illustrating the operation procedures used in the conventional hands-free device.

EXPLANATION OF THE REFERENCES

51: guide display device; 52: attachment; 53: rotation switch; 54, 55: contact; 56: contact on the main unit; 511: communication unit; 512: current position acquisition unit (current position acquisition means); 513: map information storage unit; 514: destination storage unit (destination storage means); 515: route search unit; 516: control unit (display control means); 517: display unit (display means); 517a: screen; 518: operation unit; 519: audio output unit; 520: state detection unit (arrangement change detection means); 521: external equipment connection unit; 522: external equipment; 523: transportation storage unit (means for determining what transportation is used); 1: screen; 2: support part; 3: connector; 4: portable telephone device; 5: scroll bar; 6: send button; 7: keyboard; 8: wireless transceiver; 9: portable music device; 10: portable telephone device connection check window; 11: hands-free setting button; 12: play button; 20: display device; 20a: housing; 21: control unit; 22: external equipment detection unit (external equipment detection means); 23: information acquisition unit (information acquisition means); 24: storage unit; 25: external equipment connection unit; 26: window screen state detection unit 26 detects the change in the arrangement state of the screen 1 after the external equipment detection unit 22 detected the connection of the portable telephone device 4.

The screen 1 and an audio output unit 30 are connected to the display control unit 27. For example, the operation unit 31 is a touch panel integrated with the screen 1. Further, since the display device 20 is the car navigation device, it comprises a route search unit 28. The control unit 21 controls each unit. Further, it comprises a storage unit 24 for storing map data. The storage unit 24 may be a semiconductor memory or a storage device using a DVD (Digital Video Disk) or a CD (Compact Disk). Further, in the case of so called communication navigation, the map data may be stored in a server (not-shown), and the display device 20 may then read the map data from the server if necessary. In this case, a map data acquisition unit or a communication unit for communicating with the server may be provided in place of the storage unit 24.

(First Embodiment of a Switching Operation of Display Contents)

Next, a switching operation in the vertical-horizontal switching of the screen 1 will be explained by referring to FIGS. 17-19. FIG. 17 illustrates the connection of the portable telephone device 4 to the display device 20. As shown in FIG. 17(A), the connector 3 is used to connect the portable telephone device 4 and the display device 20. In addition, the connector 3 may be provided to the external equipment connection unit 25. The external equipment detection unit 22 checks the connection between the portable telephone device 4 and the display device 20. Thereby, a portable telephone device connection check display 10 appears on the screen 1.

Subsequently, the explanation will be provided with referring to FIG. 18. FIG. 18 shows a manner to change the arrangement state of the screen 1. As shown in FIG. 18, the arrangement state of the screen 1 is changed from the horizontal arrangement (FIG. 18(A)) to the vertical arrangement (FIG. 18(B)). The window screen state detection unit 26 detects the change in the arrangement state of the screen 1. Thereby, the telephone directory and the calling/called operation history acquired by the information acquisition unit 23 from the portable telephone device 4 are displayed on the screen 1. Such the display manner is referred to as the list display. It is noted that the information of the telephone directory and the calling/called operation history has been stored in the storage unit 24. The driver operates the scroll bar 5 at the window of FIG. 18(B) to select the called party. Having selected the called party, the driver presses down the send button 6. Thereby, the originating process of the portable telephone device 4 is completed. Further, with respect to the change in the arrangement state (the horizontal state to the vertical state, or the vertical state to the horizontal state), since the user can make the operation without focusing on the display, the safety during the traveling can be maintained.

As such, among the procedures explained by referring to FIG. 29, step S40 (pressing down the hands-free-button) and step S41 (calling the telephone directory or the history) can be synchronized with the vertical-horizontal switching of the screen 1. Therefore, steps S40 and S41, which were conventionally necessary, can be substantially omitted.

The above procedures are shown in a flowchart of FIG. 19 as the processing procedure of the control unit 21. The control unit 21 monitors the connection of the portable telephone device 4 by the external equipment detection unit 22 (step S1). Then, the control unit 21 detects the connection of the portable telephone device 4 by the external equipment detection unit 22 (step S2, Yes). At this time, the control unit 21 instructs the display control unit 27 to display the portable telephone device connection check display 10 on the screen 1 (step S3). Further, the control unit 21 receives the information from the portable telephone device 4 through the information acquisition unit 23 (step S4). Upon completion of receiving the information from the portable telephone device 4 through the information acquisition unit 23 (step S5, Yes), the control unit 21 stores this information in the storage unit 24.

The control unit 21 monitors the arrangement state of the screen 1 by the display screen state detection unit 26 (step S6). The arrangement state of the screen 1 is changed from the horizontal arrangement and the vertical arrangement (step S7, Yes). Subsequently, the control unit 21 controls the display control unit 27 to display on the screen 1 the information stored in the storage unit 24 (step S8). Then, if there is a pressing down of the send button of the operation unit 31 (step S9), the originating process is performed to the portable telephone device 4 (step S10).

It is noted that, if the portable telephone device 4 is not in connection (step S2, No), or if the arrangement state of the screen 1 is not changed even if the portable telephone device 4 is connected (step S7, No), the display device 20 continues to operate as the car navigation device.

(Second Embodiment of the Switching Operation of Display Contents)

Next, the switching operation of the display contents at the vertical-horizontal switching of the screen 1 will be explained by referring to FIGS. 20-24. FIG. 20 illustrates the hands-free setting button 11. As shown in FIG. 20, in the second embodiment, the hands-free setting button 11 is displayed on the screen 1. The operation unit 31 is a touch panel integrated with screen 1. Therefore, the user presses down the hands-free setting button 11 on the screen 1 and, thereby, the operation unit 31 is operated. The operation of the operation unit 31 is transferred to the control unit 21.

FIG. 21 shows the switching of the display contents when the hands-free setting button 11 is pressed down. If the hands-free setting button 11 is pressed down, the same switching of the display contents as shown in FIG. 6 of the first embodiment is applied.

FIG. 22 shows the switching of the display contents when the hands-free setting button 11 is not pressed down. If the hands-free setting button 11 has not been pressed down, the same is applied as the case where the portable telephone device 4 is not connected. Therefore, the display device 20 continues to operate as the car navigation device.

FIG. 23 shows the switching of the display contents when the screen 1 is horizontally arranged after the hands-free setting button 11 was pressed down at the state where the screen 1 was in the vertical arrangement. In the case of FIG. 23, the telephone directory and the calling/called operation history are listed on the horizontally arranged screen 1.

The above procedures are shown in a flowchart of FIG. 24 as the processing procedure at the control unit 21. The control unit 21 monitors the connection of the portable telephone device 4 by the external equipment detection unit (step S20). Then, the control unit 21 detects the connection of the portable telephone device 4 by the external equipment detection unit 22 (step S21, Yes). At this time, the control unit 21 instructs the display control unit 27 to display the portable telephone device connection check display 10 on the screen 1 (step S22). Further, the control unit 21 receives the information from the portable telephone device 4 through the information acquisition unit 23 (step S23). Upon completion of receiving the information from the portable telephone device 4 through the information acquisition unit 23 (step S24, Yes), the control unit 21 stores this information in the storage unit 24. In the second embodiment, if the hands-free setting button 11 is not pressed down (step S25, No), the display device 20 continues to operate as the car navigation device.

Here, the hands-free setting button 11 is pressed down (step S25, Yes). In response, the control unit 21 monitors the arrangement state of the screen 1 by the display screen state detection unit 26 (step S26). Then, the screen 1 is changed in the arrangement from the horizontal to the vertical or from the vertical to the horizontal (step S27, Yes). In response, the control unit 21 controls the display control unit 27 to display on the screen 1 the information stored in the storage unit 24. Thereby, the telephone directory and the calling/called operation history are listed on the screen 1 (step S28). Then, if there is a pressing down of the send button of the operation unit 31 (step S29, Yes), the control unit 21 performs the originating process to the portable telephone device 4 (step S30).

It is noted that, if the portable telephone device 4 is not in connection (step S21, No), or if the portable telephone device 4 is connected and the hands-free setting button 11 is pressed down but the arrangement of the screen 1 is not changed (step S27, No), the display device 20 continues to operate as the car navigation device.

(Third Embodiment of the Switching Operation of Display Contents)

Next, as a third embodiment, the switching operation of the display contents at the vertical-horizontal switching of the screen 1 will be explained by referring to FIGS. 25 and 26. FIG. 25 shows the process until a keyboard 7 is displayed on the screen 1. In the third embodiment, as shown in FIG. 25, the keyboard 7 is displayed when the screen is in the horizontal arrangement.

FIG. 25(A) shows the display device 20 when the car navigation device is being used. FIG. 25(B) shows the state where the screen 1 has been changed from the car navigation display to the list display. Here, it is assumed that the send button 6 has not been pressed down. In addition, it is assumed that the screen 1 is changed from the vertical arrangement to the horizontal arrangement. At this time, the keyboard 7 is displayed on the horizontally arranged screen 1 as shown in FIG. 25(C) in the third embodiment. This keyboard 7 is useful when the SMS (Short Message Service) is used.

The above procedures are shown in a flowchart of FIG. 26 as the processing procedure of the control unit 21. The control unit 21 monitors the connection of the portable telephone device 4 by the external equipment detection unit 22 (step S40). Then, the control unit 21 detects the connection of the portable telephone device 4 by the external equipment detection unit 22 (step S41, Yes). At this time, the control unit 21 instructs the display control unit 27 to display the portable telephone device connection check display 10 on the screen 1 (step S42). Further, in response, the control unit 21 receives the information from the portable telephone device 4 through the information acquisition unit 23 (step S43). Upon completion of receiving the information from the portable telephone device 4 through the information acquisition unit 23 (step S44, Yes), the control unit 21 stores this information in the storage unit 24. Then, if the hands-free setting button 11 is not pressed down (step S45, No), the display device 20 continues to operate as the car navigation device. It is noted that the hands-free setting button 11 may not be provided in the third embodiment.

Here, the hands-free setting button 11 is pressed down (step S45, Yes). In response, the control unit 21 monitors the arrangement state of the screen 1 by the display screen state detection unit 26 (step S46). If the screen 1 is changed in the arrangement from the horizontal to the vertical or from the vertical to the horizontal (step S47, Yes), the control unit 21 then controls the display control unit 27 to display on the screen 1 the information stored in the storage unit 24. Thereby, the telephone directory and the calling/called operation history are listed on the screen 1 (step S48). Then, if there is a pressing down of the send button 6 of the operation unit 31 (step S49, Yes), the originating process is performed to the portable telephone device 4 (step S54).

Here, it is assumed that there is no pressing down of the send button 6 of the operation unit 31 (step S49, Yes). The control unit 21 monitors the arrangement state of the screen 1 by the display screen state detection unit 26 (step S50). Then, if the screen 1 is changed in the arrangement from the vertical to the horizontal (step S51, Yes), the control unit 21 then displays the keyboard 7 on the screen 1 (step S52). Here, after the predetermined input operation, if there is a pressing down of the send button 6 of the operation unit 31 (step S53, Yes), the originating process is performed to the portable telephone device 4 (step S54).

(Supplemental Explanations of Each Embodiment)

The flowcharts of FIGS. 19, 24, and 26 end at the originating process. However, there is a case where the process is discontinued without performing the origination. In this case, a reset button (not shown) is pressed down. The procedure to return to the navigation display may be thereby added.

FIG. 27 shows the embodiment using a wireless transceiver 8. As shown in FIG. 27, the connection between the portable telephone device 4 and the display device 20 maybe established through the wireless communication line by using the wireless transceiver 8. For example, the Bluetooth (trademark) may be used for the wireless communication line. By using such a wireless communication, the change to the screen can be made without needing the consideration of the cable.

FIG. 28 shows the embodiment in which a portable music device 9 and the display device 20 are connected. In the example of FIG. 28, the portable music device 9 instead of the portable telephone device 4 is connected to the display device 20. When the portable music device 9 is connected to the display device 20, the information acquisition unit 23 acquires the information of the song menu from the portable music device 9. This information is stored in the storage unit 24.

As shown in FIG. 28(B), it is the song menu that is displayed when there is a change from the horizontal arrangement to the vertical arrangement. After the selection from the song menu, the reproduction is started by pressing down a play button 12. The reproduction of the music is outputted from an audio output unit 30.

(Embodiment of the Program)

The embodiment of a program will be explained, in which the program, when installed in an information processing device, instructs the information processing device to implement the function of each unit in the display device 20 of the present embodiment. Here, the information processing device refers to a general purpose computer device. The general purpose computer device may be a CPU (Central Processing Unit), for example.

The program of the present embodiment is recorded to a storage medium, so that the information processing device can use this storage medium for installation of the program of this embodiment. Alternatively, the program of this embodiment can be directly installed in the information processing device via the network from the server that stores the program of the present embodiment.

Thereby, the information processing device can be used to achieve the respective functions of the control unit 21, the external equipment detection unit 22, the information acquisition unit 23, the storage unit 24, the display screen state detection unit 26, the display control unit 27, and the route search unit 28. It is noted that, with respect to other functions than the above, the function that can be embodied by software may be implemented by the program of the present embodiment.

It is noted that the program of the present embodiment includes not only the program that can be directly executed by the information processing device but also the program that can be executed after the installation in the hard disc. Further, the program includes the compressed and/or the encrypted one.

The embodiments of the present invention have been described above. However, modifications thereto can be made in various ways as long as the concept of the present invention is not changed. For example, while, in the display device 20 of the above embodiments, the housing 20a is a rectangular and the screen 1 is also a rectangular, it is possible that the housing 20a is a rectangular but the screen 1 is a square. In this case, while the screen 1 becomes a square in both cases of being vertically arranged and horizontally arranged, it is determined depending on the state of the housing whether it is vertical or horizontal.

It has been explained that the list display is not provided if the screen 1 is changed from the horizontally arranged state to the vertically arranged state without pressing down the hands-free button 11. However, the list display may be provided if the hands-free button 11 is pressed down after the screen 1 was changed from the horizontally arranged state to the vertically arranged state without pressing down the hands-free button 11.

As the list display, it may be the telephone directory and the calling/called operation history; two of the calling operation history and the called operation history; or three of the above two and the telephone directory. Further, instead of providing the list display, it is possible to display one of the items and sequentially switch the displayed items by scrolling the display, or display the latest calling telephone number and the latest called telephone number only.

Further, it is possible to change the displayed contents according to the rotation direction, for example, to display the list of the telephone directories when the screen is rotated to the right from the horizontally arranged state, and display the list of the calling/called operation history when the screen is rotated to the left from the horizontally arranged state. That is, two, three, or four arrangements for the screen may be defined and the display contents may be different or the same according to respective arrangements.

Claims

1. A guide display device comprising:

a current position acquisition unit configured to acquire a current position;

a destination storage unit configured to store a destination;

a display unit configured to display an image;

a display control unit configured to control a display content; and

an arrangement change a state detection unit configured to detect that an arrangement of a screen of the display unit has been changed,

wherein the display control unit causes the display unit to display switch from displaying a first content including a map to displaying a second content including detailed information of the a destination set by an input or its surrounding area, if the arrangement of the screen is changed under a state where a distance between the current position and the destination is less than a predetermined distance, and

wherein the current position acquisition unit and the control unit are a CPU, ROM, and RAM, and the state detection unit is an acceleration sensor.

2. The guide display device according to claim 1, wherein the display unit displays map information.

3. The guide display device according to claim 1, wherein the display control unit causes the display unit to display information of a facility of the destination or its peripheral facility as the detailed information.

4. The guide display device according to claim 3, wherein, if the destination is a facility of transportation facilities or if there is a facility of transportation facilities around the destination, the display control unit causes the display unit to display information of an access route to the facility as the detailed information.

5. The guide display device according to claim 1 further comprising a unit configured to determine what transportation is used.

6. The guide display device according to claim 5 1, wherein, if the a transportation is a vehicle, the display control unit causes the display unit to display information of a parking lot and, otherwise, to display information of a facility of the destination or its peripheral facility.

7. The guide display device according to any one of claims 1 to 5 , 3, or 4, wherein the detailed information of the destination or its surrounding area is information stored in the storage unit together with the map information and/or information down-loaded by using a communication unit the Internet.

8. A guide display method for displaying guide information on a screen, the method comprising the step of:

displaying detailed information of a destination or its surrounding area on the screen if a change in an arrangement of the screen is detected, if the destination has been set in advance, and if a distance between a current position and the destination is less than a predetermined distance.

9. A display device in which an arrangement state of the screen can be selected between a first state and a second state, the display device comprising:

an external equipment detection unit configured to detect a connection of external equipment;

an information acquisition unit configured to acquire information from the external equipment if the external equipment detection unit detects the connection of the external equipment;

a screen state detection unit configured to detect whether the arrangement state of the screen is in the first state or the second state; and

a display control unit configured to display at least a portion of the information acquired by the information acquisition unit if the change in the arrangement state of the screen is detected by the screen state detection unit after the external equipment detection unit detected the connection of the external equipment.

10. The display device according to claim 9,

wherein the external equipment is a portable telephone device, and A display device in which an arrangement state of the screen can be selected between a first state and a second state, the display device comprising:

an external equipment detection unit configured to detect a connection of external equipment;

an information acquisition unit configured to acquire information from the external equipment if the external equipment detection unit detects the connection of the external equipment;

a screen state detection unit configured to detect whether the arrangement state of the screen is in the first state or the second state; and

a display control unit configured to switch from displaying a first content to displaying a second content different from the first content and based on the information acquired from the external equipment, if the change in the arrangement state of the screen is detected by the screen state detection unit,

wherein the display control unit displays predetermined image information on the screen if a calling operation of the portable telephone device has not been made first operation input is not provided to the display device and the change in the arrangement state of the screen is again detected by the screen state detection unit after the second content showing at least a portion of the information acquired by the information acquisition unit predetermined portable telephone device was displayed on the screen, and

the screen state detection unit is an acceleration sensor and the display control unit is a CPU, ROM, and RAM.

11. The display device according to claim 2 10, wherein the predetermined image information is image information of a keyboard.

12. The display device according to any one of claims 9 10 to 11, wherein the display control unit prohibits the display of the information acquired by the information acquisition unit second content showing information acquired from the external equipment if there is no predetermined a second operation input is not provided, even if the change in the arrangement state of the screen is detected by the screen state detection unit after the external equipment detection unit detected the connection of the external equipment.

13. A method for switching a display content for use in a display device in which an arrangement state of the screen can be selected between a first state and a second state, the method comprising the steps of:

detecting a connection of external equipment;

acquiring information from the external equipment if the connection of the external equipment is detected;

detecting whether the arrangement state of the screen is in the first state or the second state; and

displaying at least a portion of the information acquired by the step of acquiring, if the change in the arrangement state of the screen is detected after the connection of the external equipment was detected.

14. The method according to claim 13, wherein the display of the information acquired by the step of acquiring is prohibited if there is no predetermined operation input even if the change in the arrangement state of the screen is detected after the connection of the external equipment was detected.

15. A program, when installed in an information processing device, instructing the information processing device to perform a function as a display device in which an arrangement state of a screen can be selected between a first state and a second state, the program configured to implement:

an external equipment detection function for detecting a connection of external equipment;

an information acquisition function for acquiring information from the external equipment if the external equipment detection function detects the connection of the external equipment;

a screen state detection function for detecting whether the arrangement state of the screen is in the first state or the second state; and

a display control function for displaying at least a portion of the information acquired by the information acquisition function if the change in the arrangement state of the screen is detected by the screen state detection function after the external equipment detection function detected the connection of the external equipment.

16. A display device comprising:

a display unit including a display screen, which is a rectangle having two longer edges and two shorter edges and a touch panel adapted to receive an input operation;

a sensor that detects an inclination of the display screen;

a screen state detection unit that detects whether the display screen is in a first arrangement state where a shorter edge of the rectangle of the display screen is horizontal or in a second arrangement state where a longer edge of the rectangle of the display screen is horizontal, by referring to an output from the sensor; and

a control unit that switches from displaying a first content to displaying a second content different from the first content and showing a portion of the parking lot information if a change in arrangement state is detected by referring to an output from the screen state detection unit, wherein

the control unit displays detailed information on a parking lot as displayed, when a portion of the displayed parking lot information is selected by a touch panel operation, and

the screen state detection unit is an acceleration sensor and the control unit is a CPU, ROM, and RAM.

17. A display method adapted for a display device including a display screen that is a rectangle having two longer edges and two shorter edges and a touch panel adapted to receive an input operation, the method comprising:

detecting an inclination of the display screen;

detecting whether the display screen is in a first arrangement state where a shorter edge of the rectangle of the display screen is horizontal or in a second arrangement state where a longer edge of the rectangle of the display screen is horizontal, by referring to a detected result;

connecting via bluetooth to a portable telephone terminal for acquiring parking lot information from a server by using a communication line and acquiring the parking lot information via the portable telephone terminal; and

switching from displaying a first content to displaying a second content showing a portion of the acquired parking lot information if a change in arrangement state is detected, by referring to a result of detecting the first arrangement state or the second arrangement state, wherein

detailed information on a parking lot as displayed is displayed on the display screen, when a portion of the displayed parking lot information is selected by a touch panel operation.