JP2013054364A - Display processing device, display system, display method and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display system with which textual information in a hierarchical structure can be properly displayed on a display device with a small display area.SOLUTION: A display system includes a data management unit 3 that manages information in a hierarchical structure and a display processing unit 4 that reads out the information in a hierarchal structure from the data management unit 3 and performs control to display the names of the levels of the hierarchal structure in the order of the depth of the hierarchal structure. The display processing unit 4 shortens the hierarchal level names and displays them on a display unit 11 so that at least parts of all of the names of the hierarchal levels included in the hierarchal structure are shown.

Description

The present invention relates to a display processing device, a display system, a display method, and a program for displaying hierarchized information on a display device having a narrow display area such as a head mounted display of a wearable computer.

A head-mounted display of a wearable computer is used by being mounted on a user's head, and is configured to display information on a display unit located in front of the eyes (for example, see Patent Document 1). For this reason, the display area is narrow, and the amount of information (for example, the number of characters) that can be displayed on the display unit is limited.

Japanese Patent Laid-Open No. 10-98518

When character information having a hierarchical structure such as a directory name is displayed on such a display device, if the information hierarchy is deep, a character string to be displayed may become long and may not completely enter the display area.
In such a case, in general, a portion that does not fit in the screen is often omitted with “...” Or the like, but there is a problem that deep hierarchical information cannot be understood at all.

The present invention has been made in view of such problems, and provides a display device, a display system, a display method, and a program that appropriately display character information having a hierarchical structure on a display device having a narrow display area. With the goal.

In order to solve the above problems, a display processing apparatus according to the present invention includes a data management unit that manages hierarchical structure information, reads the hierarchical structure information from the data management unit, and assigns a name indicating a hierarchy to the hierarchical structure. A display processing unit for displaying on the display unit in the order of the names of the hierarchies, so that at least part of the names of all hierarchies included in the hierarchical structure are displayed. The unit is omitted and displayed on the display unit.

At this time, it is preferable that the display processing unit omits a part of a name indicating a layer other than the shallowest layer and the deepest layer and displays the name on the display unit. The display processing unit omits a part of the name indicating the hierarchy and displays the name on the display unit when the name indicating the hierarchy to be displayed in the order of the hierarchical structure does not fit in the display area of the display unit. It is preferable to be configured as described above.

Further, the display processing unit, based on the area that can be displayed on the display unit and the number of hierarchies of the hierarchical structure when the name indicating the hierarchy displayed in the order of the hierarchical structure does not fit in the display area of the display unit. It is preferable that the number of characters that omit the hierarchy is determined. Further, it is preferable that the display processing unit does not omit names indicating the shallowest hierarchy and the deepest hierarchy included in the hierarchical structure.

In addition, the display system according to the present invention reads a display device, a data management unit that manages hierarchical information, and reads the hierarchical structure information from the data management unit, and names the hierarchy in the order of the hierarchical structure. A display processing unit for displaying on a display device, wherein the display processing unit displays a part of the name indicating the hierarchy so that at least a part of the name indicating all the levels included in the hierarchical structure is displayed. It is configured to be omitted and displayed on the display device.

The display method according to the present invention includes a step of reading the hierarchical structure information from a data management unit that manages the hierarchical structure information, and at least a part of the names indicating all the hierarchies included in the hierarchical structure are displayed. As described above, the step of omitting a part of the name indicating the hierarchy and the step of displaying the name indicating the hierarchy in the order of the hierarchical structure are configured.

The program according to the present invention includes a step of reading the hierarchical structure information from a data management unit that manages the hierarchical structure information, and at least a part of names indicating all the hierarchies included in the hierarchical structure are displayed. As described above, the computer is configured to execute a step of omitting a part of the name indicating the hierarchy and a step of displaying the name indicating the hierarchy in the order of the hierarchical structure.

When the display processing apparatus, display system, display method, and program according to the present invention are configured as described above, character information having a hierarchical structure can be appropriately displayed even on a display apparatus having a narrow display area.

It is a block diagram which shows the structure of the display system which concerns on this invention. It is a perspective view which shows the display apparatus (head mounted display) with which the display system which concerns on this invention is applied. It is sectional drawing which shows the structure of the display part of the said head mounted display. It is explanatory drawing which shows the display content based on 1st Example, (a) is a figure which shows the hierarchical structure of the file displayed, (b) is a figure which shows the absolute path name of this file, ( c) is a diagram showing a case where the display is omitted. It is a flowchart which shows the process of the display process part which concerns on 1st Example. It is explanatory drawing which shows the display content which concerns on 2nd Example, (a) is a figure which shows the conventional tree display, (b) is a figure which shows the case where it abbreviate | displays, (c), It is a figure which shows the case where the number which shows the omitted hierarchy is displayed. It is a flowchart which shows the process of the display process part which concerns on 2nd Example.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. First, as a display device to which the display system according to the present invention is applied, a head mounted display 10 shown in FIG.
Will be described. The head-mounted display 10 is used by being mounted on the head, and includes a display unit 11 that displays information and a support unit 1 that supports the display unit 11 in front of the wearer's eyes.
2 and mounting means 13 for the wearer to wear. The mounting means 13 includes left and right holding portions 14 and 15 that hold the mounting state, and a connecting portion 16 that connects these holding portions 14 and 15.

Left and right speakers 17 and 18 are built in the left and right holding parts 14 and 15, respectively.
The holding parts 14 and 15 hold the ears of the wearer, and the connecting part 16 comes into contact with the back of the head of the wearer so that the head mounted display 10 is fixedly held on the head of the wearer. In addition, the support part 12 is provided so that it may extend ahead from the one end side (the left end side in the case of FIG. 2) of the connection part 16, and, therefore, the display part 11 is located in front of a wearer's left eye. Become.

As shown in FIG. 3, the display unit 11 includes a liquid crystal panel 21 that displays an image in the main body unit 20.
Lenses 22 and 23 for enlarging and displaying the image of the liquid crystal panel 21 on the eyes (left eye) of the wearer
Is built in.

In addition, the display system 1 according to the present embodiment includes a processing device 2 such as a wearable computer and the above-described head cloak display 10 as shown in FIG. The processing device 2 includes a data management unit 3 that manages information having a hierarchical structure, and a display processing unit 4 that outputs information read from the data management unit 3 to the display unit 11 of the head mounted display 10. Is done. Here, the processing related to sound is omitted.

Then, when the data management unit 3 manages a file having a hierarchical structure, processing when the display processing unit 4 displays the directory structure of this file will be described below.

First, as a first embodiment, the processing of the display processing unit 4 when a desired file is displayed with an absolute path and the path name exceeds the number of characters in one line of the display unit 11 will be described. Specifically, of the absolute path, the drive name and the target file name are all displayed, and the folder names located between them are equally omitted according to the displayable length. explain. In this description, as shown in FIG. 4A, the A folder is created on the hard disk (referred to as “C drive”), and the B folder is created therein.
Processing for displaying the absolute path of the B1 file stored in the B folder will be described with reference to FIG. Here, as shown in FIG. 4B, the absolute path is configured by arranging the drive name and the folder name in the order of the depth of the hierarchy, and finally arranging the target file name. A description will be given assuming that “\” is displayed for a drive name and folder name separator, a folder name and folder name separator, and a folder name and file name separator.

The display processing unit 4 acquires the absolute path shown in FIG. 4B from the data management unit 3 (step S1).
00), the length L0 of this absolute path (unit: bytes, for example) is calculated from the absolute path (
Step S101). Then, it is determined whether or not the calculated absolute path length L0 is larger than the length L that can be displayed on the display unit 11 (step S102), and when the absolute path length L0 is less than or equal to the displayable length L. It is displayed as it is (step S107). If the absolute path length L0 is larger than the displayable length L, then the number of folders (number of hierarchies) from this absolute path to the storage location of the desired file (in this example, “B1 file”) is calculated. Calculate (Step S
103). In this example, since the folder A and the folder B are included, the number of layers is “2”.
It becomes. Furthermore, the length L1 of the file name of the B1 file is calculated from the absolute path (step S104), the length L of one line that can be displayed on the display unit 11, and the length L2 of the drive name (in this case, “C: Therefore, the length L3 of the omitted hierarchy is calculated (step S105). Specifically, it is obtained by L3 = L−L1−L2.

Then, the number of characters assigned to one folder name (L3 / number of hierarchies) is obtained from the omitted hierarchy length L3 and the number of hierarchies, and the display path with the folder name omitted is obtained as shown in FIG. It produces | generates (step S106) and outputs it to the display part 11 (step S107). In this example, from the number of characters assigned to one folder, “¥ A folder” is “¥ A folder…
"\ B folder" is abbreviated as "\ B folder ...".

When the absolute path of the target file is displayed in the display processing unit 4 as described above, the drive name storing the file and the file name of the file, which are information necessary for identifying the target file, are displayed. It can be accurately identified, and a part of the folder name is displayed, so you can understand the storage structure of the file, and even if there is a limit on the number of characters that can be displayed, the necessary information Can be obtained.

In the above description, the number of characters assigned to a folder name to be omitted is described as being configured to be automatically calculated from the length L of one line that can be displayed on the display unit 11 using the number of layers. However, the processing device 2 may be provided with the setting processing unit 5 so as to set the number of characters assigned to the folder name according to the setting of the wearer. Further, in the above embodiment, the processing when the information to be displayed (for example, the absolute path) does not fit in one line of the display unit 11 has been described, but when the information does not fit in the display area of the display unit 11. It is also possible to configure so as to process within the display area.

In the first embodiment, the case where the absolute path of the file is displayed as the hierarchy information has been described. In the second embodiment, the case where the entire information having the hierarchy structure is displayed in a tree shape is the same as in the first embodiment. The file structure will be described below. FIG. 6A shows an example of a tree display of a file structure displayed by a conventional display method. In this way, in the conventional method, as the hierarchy becomes deeper, the display is shifted to the right side, so that the number of characters in the left-right direction (one line) increases as a whole.

Therefore, in the second embodiment, the display processing unit 4 restricts the display of folder names deeper than a preset hierarchy, and displays only the file names (that is, the deepest hierarchy information). (FIGS. 6B and 6C). The number of hierarchies to be restricted is
The wearer sets the display processing unit 4 in advance by the setting processing unit 5.

Now, the processing of the display processing unit 4 will be described with reference to FIG. The display processing unit 4 acquires the directory structure from the data management unit 3 (step S200), and reads the limited number of hierarchies set in the display processing unit 4 (in the present embodiment, “2”). (Step S2
01). Then, the retrieved directory structure is searched, and the folder name (in this case, “B folder” in the second hierarchy) in which the subsequent directories are not displayed is stored (step S202). At the same time, the directory structure is searched to store the file names in the folders where the folder names are not displayed (C and D folders below the B folder) (step S203). Then, as shown in FIG. 6 (c), the file names (B1 file and B2 file) stored in this folder are displayed under the folder name (B folder) in which the display of subsequent directory names is restricted. The file names (C1 file, C2 file, and D1 file) stored in the lower-level folders (C folder and D folder) are displayed in a tree structure in the downward direction (step S204).

At this time, as shown in FIG. 6B, the icon 210 displayed together with the folder name of the folder (B folder) from which the subsequent folder name is omitted, and the folder with the folder name omitted are stored. By displaying a mark (“R” in the case of FIG. 6B) that can be omitted on the icon 220 displayed together with the file names of the files (C1 file, C2 file, and D1 file). The wearer can recognize the omitted range on the tree display. Alternatively, as shown in FIG. 6 (c), files (C1 file, C2 file,
In addition, the icon 220 ′ displayed together with the file name of the D1 file) has an omitted hierarchy depth (C1 and C2 files are “1” hierarchy, and D1 file is “2”).
Display), the wearer can accurately understand the directory structure.

In the above embodiment, the case where a file structure having a hierarchical structure such as a directory name is displayed has been described. However, the present invention is not limited to this embodiment, and the genre, artist, or album name is displayed. The present invention can also be applied to the display of music files etc. that are stored in a hierarchical manner.

The main effects achieved in the embodiment of the present invention described above can be summarized as follows. As shown in the first embodiment, when displaying the absolute path of the hierarchized information, its storage location (for example, drive name) and information (information at the deepest hierarchy in the absolute path, For example, a display device (for example, a head-mounted display) having a small display area is configured by displaying all file names) and omitting the hierarchy (for example, directory names) in which the information is stored. Even if 10) is used, an accurate storage position of desired information can be presented to the wearer.

In addition, as shown in the second embodiment, when the hierarchical structure is displayed in a tree structure, information stored in a hierarchy below the restricted hierarchy is omitted from the display of the hierarchy. By displaying the icon or the number of omitted layers, the wearer can accurately recognize the layer structure.

DESCRIPTION OF SYMBOLS 1 Display system 3 Data management part 4 Display processing part 5 Setting processing part 10 Head mounted display (display apparatus)

Claims (8)

A data management unit for managing hierarchical information;
A display processing unit that reads information on the hierarchical structure from the data management unit, and displays a name indicating the hierarchy on the display unit in the order of the hierarchical structure;
The display processing unit omits a part of the name indicating the hierarchy and displays it on the display unit so that at least a part of the name indicating all the levels included in the hierarchical structure is displayed. A display processing device. The display processing device according to claim 1,
The display processing unit omits a part of a name indicating a layer other than the shallowest layer and the deepest layer, and displays the name on the display unit. The display processing device according to claim 1 or 2,
The display processing unit omits a part of the name indicating the hierarchy and displays the name on the display unit when the name indicating the hierarchy displayed in the order of the hierarchical structure does not fit in the display area of the display unit. A characteristic display processing device. The display processing device according to claim 3,
When the name indicating the hierarchy to be displayed in the order of the hierarchical structure does not fit within the display area of the display part, the display processing unit is configured based on the area that can be displayed on the display part and the number of hierarchical levels of the hierarchical structure. A display processing device characterized by determining the number of characters to omit. In the display processing device according to any one of claims 1 to 4,
The display processing unit does not omit names indicating the shallowest hierarchy and the deepest hierarchy included in the hierarchical structure. A display device;
A data management unit for managing hierarchical information;
A display processing unit that reads information on the hierarchical structure from the data management unit, and displays a name indicating a hierarchy on the display device in the order of the hierarchical structure;
The display processing unit omits a part of the name indicating the hierarchy and causes the display device to display the name so that at least a part of the name indicating all the levels included in the hierarchical structure is displayed. Display system. Reading the hierarchical structure information from a data management unit for managing the hierarchical structure information;
Omitting a part of the name indicating the hierarchy so that at least a part of the name indicating all the levels included in the hierarchical structure is displayed;
And a step of displaying names indicating hierarchies in the order of the hierarchical structure. Reading the hierarchical structure information from a data management unit for managing the hierarchical structure information;
Omitting a part of the name indicating the hierarchy so that at least a part of the name indicating all the levels included in the hierarchical structure is displayed;
A program for causing a computer to execute a step of displaying a name indicating a hierarchy in the order of the hierarchical structure.

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