JP2007232920A - Display system - Google Patents

Abstract

A display system for appropriately displaying character information having a hierarchical structure on a display device having a narrow display area is provided.
A head-mounted display (display device), a data management unit that manages information having a hierarchical structure, and a display processing unit that reads information from the data management unit and displays the text on the head-mounted display. In the display system 1 configured by the above, the display processing unit 4 is configured to limit the number of characters of information and display the information on the head mounted display 10 when the information does not fit in the display area of the head mounted display 10. .
[Selection] Figure 1

Description

  The present invention relates to a display system that displays hierarchized information on a display device having a narrow display area such as a head cap 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 an object thereof is to provide a display system that appropriately displays character information having a hierarchical structure on a display device having a narrow display area.

  In order to solve the above problems, a display system according to a first aspect of the present invention includes a display device (for example, the head mounted display 10 in the embodiment), a data management unit that manages information having a hierarchical structure, and the data management. A display processing unit that reads information from the display unit and displays the text on the display device. When the information does not fit in the display area of the display device, the display processing unit limits the number of characters in the information and displays it. Configured for display on the device.

  At this time, if the information does not fit in the display area of the display device, the display processing unit does not omit the deepest hierarchy information and displays the other hierarchies with a limited number of characters so that they fit within the display area. It is preferably configured to display on the device.

  In addition, the display system according to the first aspect of the present invention has a setting processing unit that sets the number of characters to be limited, and is set by the setting processing unit when the display processing unit limits the number of characters in the other layers. It is preferable that the number of characters in the other layers is determined according to the number of characters.

  A display system according to a second aspect of the present invention includes a display device, a data management unit that manages information having a hierarchical structure, and reads out the hierarchical structure from the data management unit to move up and down the layers that constitute the hierarchical structure. And a display processing unit that displays the display on the display device while being shifted to the right according to the depth of the hierarchy. When the display processing unit displays the hierarchical structure, the display processing unit A hierarchy deeper than the hierarchy is displayed so as to be positioned below the predetermined hierarchy while omitting intermediate levels.

  At this time, it is preferable that the display processing unit is configured to display with a mark when displaying a predetermined hierarchy and a hierarchy in which an intermediate hierarchy is omitted. In addition, it is preferable that the display processing unit is configured to display the hierarchy with the number of omitted hierarchies added when displaying a hierarchy in which intermediate hierarchies are omitted.

  The display system according to the second aspect of the present invention preferably includes a setting processing unit that sets the number of hierarchies to be limited, and the display processing unit sets the predetermined number of hierarchies to the number of hierarchies set by the setting processing unit. .

  When the display system according to the present invention is configured as described above, character information having a hierarchical structure can be appropriately displayed even on a display device having a narrow display area.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. First, a head mounted display 10 shown in FIG. 2 will be described as a display device to which the display system according to the present invention is applied. The head-mounted display 10 is used by being mounted on the head, and is used by a wearer to wear a display unit 11 that displays information, a support unit 12 that supports the display unit 11 in front of the wearer's eyes. Mounting means 13. 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.

  The left and right holding parts 14 and 15 respectively have left and right speakers 17 and 18 built in. The holding parts 14 and 15 hold the ears of the wearer, and the connecting part 16 abuts against the wearer's rear head. 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, a lens 22 for enlarging the image of the liquid crystal panel 21 and displaying the image on the wearer's eye (left eye). 23 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 displayed equally 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, and stored in this B folder. A process of displaying the absolute path of the B1 file that has been performed 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 S100), and calculates the length L0 (in units of bytes, for example) of the absolute path 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 S103). In this example, the number of hierarchies is “2” because the folder is composed of the A folder and the B folder. 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, “¥ A folder” is abbreviated as “¥ A folder…” and “¥ B folder” is abbreviated as “¥ B folder” because of the number of characters assigned to one folder. Is shown.

  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 set in the display processing unit 4 by the setting processing unit 5 in advance by the wearer.

  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 S201). 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. 6C, an icon 220 ′ displayed together with the file names of files (C1 file, C2 file, and D1 file) stored in a folder in which the folder name is omitted, By displaying the depth of the omitted hierarchy (the C1 and C2 files are the “1” hierarchy, and the D1 file is the “2” hierarchy), the wearer can accurately understand the directory structure. it can.

  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.

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.

Explanation of symbols

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 (7)

A display system comprising: a display device; a data management unit that manages information having a hierarchical structure; and a display processing unit that reads the information from the data management unit and displays text on the display device,
The display system, wherein the display processing unit is configured to limit the number of characters of the information and display the information on the display device when the information does not fit in a display area of the display device.   When the information does not fit in the display area of the display device, the display processing unit does not omit the deepest hierarchy information and limits the number of characters so that other hierarchies can fit in the display area. The display system according to claim 1, wherein the display system is configured to display on the display device. It has a setting processing unit that sets the number of characters to be limited,
The display processing unit is configured to determine the number of characters in the other layers according to the number of characters set in the setting processing unit when limiting the number of characters in the other layers. The display system according to claim 2, wherein the display system is characterized. A display device; a data management unit for managing information having a hierarchical structure; and reading out the hierarchical structure from the data management unit to display the hierarchies constituting the hierarchical structure side by side in the vertical direction, and the depth of the hierarchy And a display processing unit that displays the display device with a right shift according to the display system,
When the display processing unit displays the hierarchical structure, the display system displays a hierarchy deeper than a predetermined hierarchy so as to be positioned below the predetermined hierarchy while omitting intermediate levels. .   5. The display processing unit according to claim 4, wherein the display processing unit is configured to display with a mark when displaying the predetermined hierarchy and the hierarchy in which an intermediate hierarchy is omitted. Display system.     6. The display processing unit according to claim 4 or 5, wherein the display processing unit is configured to display the number of omitted layers when displaying the layer with intermediate layers omitted. Display system. A setting processing unit for setting the number of layers to be restricted;
The display system according to claim 4, wherein the display processing unit sets the predetermined number of hierarchies as the number of hierarchies set by the setting processing unit.

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