JP4347603B2 - Display device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a local or urban facility and a mobile display device for goods, services, events, and other information, and more particularly to a configuration of a display unit.
[0002]
[Prior art]
2. Description of the Related Art Methods and apparatuses that can collect and detect information on various facilities and services in cities and sightseeing spots have been known. For example, the Internet can obtain desired information from a vast amount of information around the world using a search means (search engine). Such search means classify urban facilities and services into broad categories such as entertainment, culture, education, and industry, so that users can search for target facilities more quickly. Since they are disjoint and the classification is not systematized, the contents cannot be compared with each other at the same level, and the correlation between arrangement and function cannot be fully understood.
[0003]
In order to solve this problem, the present inventor constructed a database in which accumulated information is organized in a tree-like hierarchical structure in Japanese Patent Application Laid-Open No. 2001-60201, and displays it on the screen of a portable computer or PC terminal with a display device. It is displayed in a hierarchy, and any hierarchy and any information can be easily accessed using the displayed image or text.
In other words, at least two levels of regions or further facilities and their products, services, historical backgrounds related to regions and facilities, literary expressions, etc. are stored in a database in a systematic manner from top to bottom. Then, the information retrieval method is such that an arbitrary hierarchy of data associated in the form of a tree is selected, and the data of the selected hierarchy is displayed on the screen of the display device together with the adjacent upper and lower hierarchy data.
[0004]
That is, in the above Japanese Patent Laid-Open No. 2001-60201, map information is stored in a map memory or coordinated information (POI) is stored in a memory, and at least two layers of regions or facilities and products existing in the map or Data related to a system such as a service in the form of a tree in order from the top to the bottom is stored in a database, data in any hierarchy of the data linked in the tree form is selected, and the selected hierarchy and adjacent upper and lower hierarchies are selected. Corresponding data is read from the database and displayed in the order of the hierarchy in the associated position on the displayed screen, so that the interrelationship between the hierarchies can be determined at a glance.
[0005]
[Patent Document 1]
Japanese Patent Laid-Open No. 2001-60201
[Patent Document 2]
JP 11-328223 A
[Patent Document 3]
JP-A-11-327217
[0006]
[Problems to be solved by the invention]
However, in the conventional screen selection method of hierarchical structure, when specific information is called up and displayed on the screen, transition between a plurality of screen layers belonging to the latest upper layer and the latest lower layer is selected and clicked ( Switching between screens can be facilitated by selecting and confirming (confirmation), etc., but to move between peers, first return to the upper layer, except for the blind transition, and select and display other information screens from the peers There was always an inconvenience and hassle that was always necessary.
[0007]
Therefore, the present invention improves the above-mentioned drawbacks of the conventional system, facilitates switching or shifting of screens between peer layers, and allows a desired information source to be quickly accessed and displayed. The purpose is to provide. Here, the mobile display device refers to a display device in a mobile phone, a PDA, an information providing digital camera, an in-vehicle navigation device, and a walking navigation device.
The present invention further classifies the same information into two or more and enables switching display as two or more screens, thereby speeding up access to information sources, increasing simplicity and flexibility, and requiring one-handed operation, etc. The object is to improve the convenience and practicality of the mobile display device.
[0008]
[Means for Solving the Problems]
That is, the present invention relates to a memory that stores information relating to areas, place names, facilities, products or services or other information that are hierarchically linked in a tree form from the upper to the lower, and information about their contents, and one or more in the memory. A display unit capable of simultaneously displaying a plurality of information of a hierarchy as a corresponding screen, an upper screen selection means for selecting a single screen of the latest upper hierarchy according to the tree from the displayed screen, and Screen selection means capable of selecting and confirming any one of a plurality of headlines in the same or lower hierarchy, and reading out information corresponding to the selected heading from the memory when one of the headings is selected and confirmed A mobile display device having a readout display circuit to be sent to the display unit,
The display unit displays a screen (selection screen) of information corresponding to the selected heading when a specific heading is selected and confirmed by the selection means. Convex The selection screen display section that displays large, and the selection screen is the heading of the two screens closest to the peer hierarchy Fill the left and right recesses of the convex shape so that it becomes a square overall The screen selection means displays another screen of the same hierarchy on the selection screen display section by selecting and confirming one of the two most recent headings from the selection screen. Provided is a mobile display device configured to do so.
As a result, the selection screen can be switched from the displayed specific selection screen to another screen in the peer hierarchy.
[0009]
In a preferred embodiment, the selection screen display section displays a screen A that displays a plurality of content headings of information belonging to the self-heading of the selection screen, and a screen B that shows a self-heading of the selection screen and a plurality of headings at the nearest lower hierarchy. Can be selectively displayed, and when one of the content headings is selected and confirmed by the selection means of the screen A, the selection screen can be switched to a screen representing the content belonging to the selected content heading. The selection screen can be switched to a lower hierarchy screen when one of the headings in the lower hierarchy of the selection screen of B is selected and confirmed, and the selection means selects the self header of the selection screen A or B By confirming, the selection screen can be switched to the screen B or A.
According to this, by simply repeatedly pressing (clicking) the self-heading, in addition to the two screens in the peer hierarchy, screen A showing the contents of the self-heading and screen B displaying a list of lower-level headings. Can be switched and displayed as a selection screen, and the search display of the target screen becomes easy.
[0010]
In a preferred embodiment, the selection screen display section shows a self-heading of the selection screen and a plurality of content headings belonging to the self-heading, and a self-heading of the selection screen and a plurality of headings at the nearest lower hierarchy. Screen C that simultaneously displays a self-heading of the selection screen, a plurality of first sub-headings of the nearest lower hierarchy, and a plurality of second sub-headings of the nearest lower hierarchy of the specific heading among the sub-headings Can be selectively displayed, and when the selection means selects and confirms one of the content headings on the screen A, the selection screen can be switched to a screen representing the content belonging to the selected content heading. When one of the plurality of headings in the lower hierarchy of the selection screen of B is selected and confirmed, the selection screen can be switched to a lower hierarchy screen, and the screen C is selected by the screen selection means. By selecting and confirming a plurality of headings, the display can be switched to the first or second lower screen, and the selection screen is displayed by selecting and confirming the self-heading of the selection screen A, B or C by the selection means. It is configured so that it can be switched to B, C, or A, and by repeatedly pressing the self-heading of the selection screen, the screens A, B, and C can be switched cyclically to facilitate the search and display of the target screen. , Search flexibility is greatly increased.
[0011]
The content of each selected content heading on the screen A exists in a plurality of screens, and the plurality of screens are sequentially switched and displayed by a screen A content switching button (7).
[0012]
A plurality of headlines at the nearest lower hierarchy in the screen B are configured to be scrolled by the selection means so that hidden headlines can be displayed.
[0013]
A plurality of headings in the first lower layer and the second lower layer in the screen C are configured to be scrolled by the selection means so that hidden headings can be displayed.
[0014]
An auxiliary display unit (14) for displaying a headline of a desire satisfaction item suitable for the selection screen together with the screen A, B or C is provided, and the selection unit selects and confirms one of the headlines of the desire satisfaction item, thereby associating in advance. The screen A, B, or C is displayed on the selection screen display unit.
[0015]
Preferably, an upper button (9) is provided for displaying a screen belonging to the immediately higher hierarchy from the displayed selection screen as a selection screen.
[0016]
The selection screen displayed on the selection screen display section from the highest level to a certain level below is composed of an array of a plurality of headings (lower level headings) of the latest lower level, and is selected by the screen selection means. If one of the lower headings is selected to switch to a lower hierarchy screen and display on the selection screen display unit, the initial search operation is facilitated, which is convenient. Then, if the above selection and display are performed on a lower layer than these upper layers, the selection step of the target screen is shortened as a whole.
[0017]
As the selection means, a switch, a button, or any other one can be used. In particular, when a joystick for moving a cursor or the like (for example, highlighting a point position) and a confirmation button are used in four directions, Selection switching becomes easy. Note that a transition to a screen higher than the selection screen may be performed by providing a return button separately.
Preferably, the selection means is a joystick having a selection and scroll function and a confirmation button for confirming the selection.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
The present invention relates to a region, a place name, a facility, a product or service, and / or an event that are hierarchically related in a tree form from the top to the bottom, and / or events, or information related to these and stored in association with each other. The database is downloaded, for example, from an Internet site wirelessly or by wire and stored in the memory of the mobile display device, or stored in the memory of the mobile display device from a hard disk or the like, and the present invention is configured using the database.
A display unit is provided in the mobile display device, and a display unit that can simultaneously display a plurality of pieces of information in one or more layers in the memory as a corresponding screen, and a single upper-level layer in accordance with the tree from the displayed screen. When an upper screen selection means for selecting one screen, a screen selection means for selecting any one of a plurality of headlines of the same or lower hierarchy displayed on the displayed screen, and when one of the headings is selected And a readout circuit that reads out information corresponding to the selected heading from the memory and sends it to the display unit.
[0019]
Information about each screen selected and displayed here is stored as screen data in the memory. Each screen data is composed of text information and / or image information, and each screen data has header information associated with its address. included. When the heading information is selected, a screen corresponding to the screen data is displayed on the selection screen display unit of the display unit of the mobile display device. Accordingly, the selection screen is displayed as a screen corresponding to the screen data, and the hierarchical relationship of the screens displayed on the display unit corresponds to the hierarchical relationship in the memory.
[0020]
1 to 7 show the display device of the present invention and its screen, and the information of the tree-like hierarchical structure stored in the memory is displayed according to the screen configuration of the present invention.
FIG. 9 shows the appearance of the mobile display device of the present invention. The display unit 1, the joystick 2, the confirmation button 3, the return button 4, the screen A content switching button 7, the upper button 9 for selecting the upper layer, the keyboard 5, and the antenna. 6 is included. Although not shown in the figure, the screen data signal received via the antenna 6 is stored in the portable device as the above-described hierarchical screen data.
The display unit 1 has a joystick (or command navigation button) 2, a confirmation button (or click button) 3, a return button 4, a screen A content switching button 7, a high-level button 9, and a selection means according to the roles assigned to the keyboard 5. 1 to 7 can be displayed. In this example, the joystick 2 can be selected in four directions. The heading displayed on the screen can be arbitrarily pointed, and a specific screen data can be read from the memory by pressing (clicking) the confirmation button 3 (selected screen). On the selection screen). In the present invention, two adjacent screen data in the same hierarchy are automatically displayed at the same time. The return button 4 is a button that can return to the screen immediately before the selection screen determined by the joystick, and can return to the screen of the upper hierarchy selected immediately before or the screen of the lower hierarchy immediately before.
The confirmation button 3 further has a function of switching to another screen having the self-heading of the selection screen by pressing the self-heading of the selection screen. Alternatively, a self-heading button 7 may be provided separately to have a similar function.
The screen A content switching button 7 is a button for circulating and switching a plurality of contents belonging to various headings displayed on the screen A.
The upper button 9 is a button for returning to the latest upper layer screen.
The various buttons may be buttons displayed as images on the display unit 1 in addition to mechanical buttons.
[0021]
The display unit 1 includes a selection screen display unit 11 and a peer screen display unit 12. Reference numeral 13 denotes a hierarchy display unit that displays the current selection screen and the headlines of the two upper layers immediately adjacent thereto.
[0022]
The selection screen display unit 11 is designed to display one of the following four types of screens.
(1) The selection screen displayed on the selection screen display unit from the highest level to a certain level below it is composed of an array of a plurality of lower level headings of the latest lower level. This portion is convenient for selecting and transferring a tree-like hierarchical structure gradually to lower screens by selecting a heading (menu item). This part is known. Such a hierarchical structure and selection (search) are described in Japanese Patent Application Laid-Open No. 12-328223 and Japanese Patent Application Laid-Open No. 12-328217 “Information Collection Search Device” by the present applicant.
(2) According to the present invention, the screen of the lowest hierarchy selected in the preceding item (1) and the selection screen of the lower hierarchy have a screen A that displays the self-headings and the contents of information belonging thereto.
(3) As another screen having the same heading as in the previous item (2), a screen B indicating a plurality of headings in a lower hierarchy of the selection screen is provided. These screen A and screen B can be displayed by switching from each other or from screen A to screen B.
(4) As another screen having the same heading as (2) and (3) in the previous section, a self-heading of the selection screen, a plurality of first lower-level headings in the latest lower hierarchy, and a specific heading among the lower-level headings Including a screen C that simultaneously displays a plurality of second subordinate headings of the immediately lower subordinate hierarchy, and the screen selection means selects the heading of the screen C to switch to the first or second subordinate screen for display. Like that.
By using this screen C together, the screens A, B, and C can be switched in order and displayed.
[0023]
In the present invention, by selecting and displaying the screens (2) to (3), it is possible to search for desired information and display it on the screen.
[0024]
A specific example of the above (1) is shown in FIG. The heading of the screen of the upper hierarchy having the latest relationship with the current selection screen is displayed on the hierarchy display section 13, and the selection screen of the current hierarchy is displayed on the selection screen display section 11. In this example, it can be seen that the display screen is “Shinjuku West Exit”, and the heading of the screen on the upper layer is “Tokyo”. Each screen in the upper layer can have the same configuration as the selection screen shown in FIG. The selection screen displayed on the selection screen display unit 11 is composed of an array (in this example, 9) of a plurality of subordinate headings in the immediately lower hierarchy of the selection screen (in this example, “Shinjuku West Exit”).
When an arbitrary heading (in this example, “park tower”) is selected with the joystick 2 (for example, reverse display) and then the confirm button 3 is pressed, the screen A in FIG. 2 is displayed on the selection screen display unit 11. On the other hand, if it is desired to return to the upper screen from this screen, the return button 4 is pressed if the immediately preceding selection screen is higher. The upper button 9 may be simply pressed. Alternatively, numbers 1 to 9 may be added to the headings in the selection screen, and the same thing may be performed by inputting the numbers from the keys of the numeric keyboard 5. In the screen of FIG. 1, if the joystick 2 selects a heading (for example, “Sumitomo Building”) at the left and right ends of the screen and continues to tilt the joystick 2 to the right without confirmation, the hidden screen cannot be displayed. It is preferable to scroll to another screen.
[0025]
FIG. 2 is a screen corresponding to the above (2). The screen of the lowest hierarchy selected in the above (1) and the selection screen of the lower hierarchy are screens A that display self-headings and the contents of information belonging thereto. is there. In this example, the self-heading is “park tower”, and the content of the target information represented by the name of the self-heading is “description, photo, address telephone number, map”, and is a screen display of information introducing the park tower. Each content may be composed of a plurality of screens (in the example of FIG. 8, n photos showing the appearance and interior of the park tower). For example, when the “Photo” section is selected and confirmed with a joystick, FIG. Photo 1 is displayed as shown. At that time, the button 7 appears at the same time as an image, and a pointer is automatically attached to the button 7 so that the button is selected (state before confirmation). Therefore, every time the button 7 is confirmed, the photos 1 to n are sequentially displayed in a cyclic manner on the selection screen display section.
[0026]
The selection screen is displayed largely on the selection screen display unit 11 and headings of two screens of the same peer hierarchy are displayed on the peer hierarchy display unit 12 at the same time. Since all the displayed headings are to be selected, the screen configuration displayed on the display unit of FIG. 2 by selecting and confirming the headings 12 and 12 of the left and right peer layers displayed without returning to the upper layer. It is possible to shift to another screen having the same configuration as in FIG. This point will be described later in the case of switching from the screen display of FIG. 4 equivalent to FIG. 2 to the screen display of FIG.
In this way, it is possible to select any one of the arbitrary screens in the peer hierarchy (in this example, the screen having the nine headings in FIG. 1).
When the self-heading 11 ′ “Park Tower” is selected and confirmed in the screen display of FIG. 2, the selection screen display unit 11 is switched to the selection screen of FIG.
[0027]
FIG. 3 shows a screen B corresponding to (3) above. This screen is another screen having the same heading 11 ′ “Park Tower” as the selection screen of FIG. 2, and is a screen showing a plurality of headings “PARK / HYATT / HOTEL” and other six headings in the lower hierarchy of the selection screen B. Each of these headings can be selected by pointing and confirming.
As a result, it can be understood what kind of facility belongs to the self-heading 11 ′ “Park Tower”. When the heading “PARK / HYATT / HOTEL” is selected, the screen shown in FIG. 4 appears.
In addition, in the screen B of FIG. 3, when the heading of the end of the screen (for example, “PARK TO HALL”) is selected with the joystick 2 (without confirming), the joystick 2 is continued to be tilted to the right and displayed on the screen B. It is preferable that the screen can be selected by scrolling to a hidden screen.
[0028]
The screen of FIG. 4 is the same screen A as the screen configuration of FIG. 2, and the screen represented by the self-heading 11 ′ “PARK / HYATT / HOTEL” is displayed on the selection screen display unit 11 and the other two in the same hierarchy. Are simultaneously displayed on the peer level display units 12 and 12.
FIG. 5 is a screen A which is a selection screen when selecting and confirming the heading 12 (in this example, “OZONE”) in FIG. 4, and is the same as FIG. 2 and FIG. See description.
[0029]
When the self-heading 11 ′ “PARK / HYATT / HOTEL” is selected and confirmed again in FIG. 4, the screen switches to the screen B showing the heading list of the immediately lower hierarchy of the self-heading 11 ′ “PARK / HYATT / HOTEL” in FIG. Since the configuration of this screen is the same as that of screen B shown in FIG. 3, refer to the description of FIG. 3 for details. When the self heading 11 ′ “PARK / HYATT / HOTEL” is selected again in FIG. 6, the screen is switched to the screen shown in FIG.
[0030]
FIG. 7 displays the screen C described in (4) above on the selection screen display unit 11. The selection screen includes the self-heading 11 ', a plurality of first sub-headings ("Peak", "Girandole", "New York Grill") in the immediate lower hierarchy, and a specific heading such as a restaurant, for example, a restaurant It includes a screen C that simultaneously displays a plurality of second sub-headings, for example, cooking menus, in the immediate lower hierarchy of “Gilandol”, and each heading can be selected.
Further, by selecting the self-heading of the screen C, it is possible to switch to and display the screen A or B having the same self-heading (that is, the screen of FIG. 4 or FIG. 6). In the example described later with reference to FIG. 10, screens A, B, and C are cyclically displayed.
Note that FIG. 3 has a screen configuration equivalent to that in FIG. 6, and the selection screen in FIG. 3 can be switched to a screen having the same configuration as in FIG. 7.
[0031]
In summary, when the correspondence between the embodiment and the screen is shown, the screen A (displays the self-heading of the screen and the description of the facility represented by the heading, etc.) is displayed together with the headings of the other two screens in the same level. Examples of this are shown in FIGS.
An example of displaying screen B (the self-heading of the screen and a list of headings belonging to the nearest lower hierarchy such as a facility represented by the heading) together with the headings of the other two screens in the same hierarchy is shown in FIGS. is there.
Along with headings of other two screens in the same hierarchy, screen C (a screen heading, a heading list belonging to the nearest lower hierarchy such as a facility represented by the heading, and a plurality of headlines represented by a specific heading of the lower hierarchy) FIG. 7 shows an example of displaying a list of subordinate facilities or products.
[0032]
FIG. 10 shows the above-described screen selection operation and display flow for further understanding. First, it is assumed that the subheading “Park Tower” in FIG. 1 is selected and confirmed. As a result, the screen A having the heading 11 ′ “Park Tower” is displayed, and the two closest peer screens 12 and 12 are displayed, and the next input is waited for.
If the right or left peer 12 is selected and confirmed, the readout display circuit determines whether the confirmation screen is right or left and displays the screen A of the right or left screen on the selection screen display unit 11.
If the self heading 11 'is selected and confirmed, the readout display circuit switches the selection screen to the screen B in FIG. If the self-heading 11 'is selected again and confirmed, the screen C is switched. If the self-heading 11 ′ is selected and confirmed again, the readout display circuit switches to the screen A. The same applies hereinafter.
If a content heading such as a photo heading is selected and confirmed on the screen A, the first screen (photo 1) of FIG. The content button 7 is displayed on the screen. By repeatedly pressing the button, the photograph 1 is returned to the photograph 5, and then the photograph 1 is returned. The same applies hereinafter.
When the upper button 9 is pressed on an arbitrary selection screen that is displayed, the latest upper layer screen is displayed.
When the return button 4 is pressed on any displayed selection screen, the screen displayed immediately before is displayed on the selection screen.
[0033]
Furthermore, the following modifications can be made.
As shown in FIGS. 4 to 7, an auxiliary display unit 14 for displaying a selection headline of desire satisfaction items corresponding to the selection screen (in this example, a headline of activities such as meals, shopping, etc.) is provided together with the screens A, B, or C. By providing a means for selecting one of them, it is possible to jump to the screen of a facility (restaurant, store, etc.) belonging to any category. Such an auxiliary display screen is associated with a specific category classification in advance. This association is described in detail in Japanese Patent Laid-Open Nos. 11-328223 and 11-327217.
[0034]
11 illustrates a system in which the display device 20 (for example, in-vehicle navigation) and a remote controller are separated and a signal is sent to the infrared sensor 21 to operate the screen of the display unit 1 of the display device 20. The configuration and operation are the same as those of the embodiment described above. A toggle button may be used as the button 7.
[0035]
【The invention's effect】
As described above, according to the present invention, in the mobile display device, it is possible to directly select other screens of the same hierarchy from the display screen, and further, the screens A, B, and C can be selected and displayed under the same heading. The effect that the search of information can be performed quickly is obtained.
[Brief description of the drawings]
FIG. 1 is a diagram illustrating an example of a selection screen and a peer screen displayed on a selection screen display unit and a peer screen display unit of a display unit of a mobile display device of the present invention.
FIG. 2 is a diagram showing a selection screen A displayed when a lower-level headline displayed in the selection screen display section of FIG. 1 is selected.
3 is a diagram showing a selection screen B displayed when the self-heading displayed on the selection screen display unit in FIG. 2 is selected. FIG.
4 is a diagram showing a selection screen A displayed when a lower-level headline displayed in the selection screen display section of FIG. 3 is selected.
5 is a diagram showing a selection screen A that is displayed when a heading displayed on the peer screen display unit in FIG. 4 is selected. FIG.
6 is a diagram showing a selection screen B displayed when a self-heading displayed on the selection screen display unit in FIG. 4 is selected. FIG.
7 is a diagram showing a selection screen C displayed when the self-heading displayed on the selection screen display unit in FIG. 5 is selected.
8 is a diagram showing that when a photo is selected as the contents of screen A in FIG. 2, a plurality of photos are sequentially switched and displayed. FIG.
FIG. 9 is a diagram showing a configuration of a mobile display device of the present invention.
FIG. 10 is a flowchart showing the operation of the mobile display device of the present invention.
FIG. 11 is a diagram showing the configuration of another mobile display device of the present invention.
[Explanation of symbols]
1 Display section
2 Joystick
3 Confirm button
4 Return button
5 Keyboard
6 Antenna
7 A screen contents button
9 Upper button
11 Selection screen display
12 peer screen display
13 hierarchy display
14 Auxiliary display

Claims (10)

A memory storing information related to areas, place names, facilities, products or services or other information hierarchically related in a tree form from the top to the bottom, and a plurality of information in one or more layers in the memory A display unit capable of simultaneously displaying the corresponding screen as a corresponding screen, upper screen selection means for selecting a single screen of the latest upper hierarchy from the displayed screen according to the tree, and a peer or lower hierarchy of the displayed screen Screen selection means for selecting and confirming any one of a plurality of headings, and when one of the headings is selected and confirmed, information corresponding to the selected heading is read from the memory and sent to the display unit A mobile display device having a readout display circuit,
When the display unit selects and confirms a specific heading by the selection unit, a selection screen display unit that displays a screen (selection screen) of information corresponding to the selected heading large in a convex shape; and the selection screen; Has a peer layer screen display unit that displays the headings of the two screens closest to the peer layer in a small size so as to fill the left and right concave portions of the convex shape so as to form a square as a whole. A moving display device configured to display another screen of a peer hierarchy on a selection screen display unit by selecting and confirming one of the two most recent headings from the screen. The selection screen display section selectively includes a screen A that displays a plurality of content headings of information belonging to the self-heading of the selection screen, and a screen B that shows a plurality of headings of the nearest lower hierarchy. When the selection means of the screen A selects and confirms one of the content headings, the selection screen can be switched to a screen representing the contents belonging to the selected content heading, and the selection screen of the screen B The selection screen can be switched to a lower hierarchy screen when one of the plurality of headlines in the lower hierarchy is selected and confirmed, and the selection means selects and confirms the self header in the selection screen A or B The mobile display device according to claim 1, wherein the selection screen can be switched to a screen B or A. In the selection screen display section, a screen A that displays a self-heading of the selection screen and a plurality of content headings belonging to the self-heading, a screen B that shows a self-heading of the selection screen and a plurality of headings of the latest lower hierarchy, A screen C that simultaneously displays a self-heading of a selection screen, a plurality of first sub-headings at the nearest lower hierarchy, and a plurality of second sub-headings at the nearest sub-hierarchy of a specific heading among the sub-headings is selective. When the selection means selects and confirms one of the content headings on the screen A, the selection screen can be switched to a screen representing the content belonging to the selected content heading. The selection screen can be switched to a lower layer screen when one of the plurality of headings in the lower hierarchy is selected and confirmed, and the plurality of headings on the screen C are selected by the screen selection means. By selecting and confirming, the display can be switched to the first or second lower screen, and by selecting and confirming the self-heading of the selection screen A, B or C by the selection means, the selection screen is displayed on the screen B, C or A. The mobile display device according to claim 1, configured to be able to be switched to The mobile display device according to claim 2 or 3, wherein the content of each selected content heading on the screen A includes a plurality of screens, and the plurality of screens are sequentially switched and displayed by a screen A content switching button (7). The moving display device according to claim 2 or 3, wherein a plurality of headlines in the immediately lower hierarchy on the screen B can be displayed by scrolling with a selection means. The mobile display device according to claim 2 or 3, wherein a plurality of headlines in the first lower hierarchy and the second lower hierarchy in the screen C can be displayed by scrolling by a selection means. An auxiliary display unit (14) for displaying a headline of a desire satisfaction item suitable for the selection screen together with the screen A, B or C is provided, and the selection unit selects and confirms one of the headlines of the desire satisfaction item, thereby associating in advance. The mobile display device according to claim 1, wherein the screen A, B, or C is displayed on the selection screen display unit. 8. The moving display device according to claim 1, wherein the selection means is a joystick having a selection and scroll function and a confirmation button for confirming the selection. The mobile display device according to any one of claims 1 to 8, further comprising an upper button (9) for displaying, as a selection screen, a screen belonging to the immediately higher hierarchy from the displayed selection screen. The moving display device according to claim 1, wherein the selection means includes a return button (4) to the previous screen.

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