KR20080011954A - Touch screen apparatus and file search method thereof - Google Patents

Abstract

A touch screen device and a file search method thereof are provided to enable a user to search a file easily by using a scrolling function for moving a plurality of file lists by a page unit. A display part(40) displays a plurality of file lists and a scrolling area for searching a file. A page setting part(10) divides the file lists into each page unit including the set number of file lists. A controller(20) searches the files by a page unit and displays the searched files by a page unit according to touch operation of the scrolling area. The display part includes a file area displaying the file lists, a current position display area displaying a position of the file displayed in the file area, a page moving menu receiving page unit movement of the file lists, and a file moving menu receiving file unit movement of the file list.

Description

TOUCH SCREEN APPARATUS AND FILE SEARCH METHOD THEREOF}

1 is an exemplary view of a screen for searching for a file in a conventional MP3 player.

2 is a block diagram of a touch screen device according to a preferred embodiment of the present invention.

3 is an exemplary view of a screen displayed on the display unit illustrated in FIG. 2.

4 is a flowchart illustrating a step-by-step method of searching a file of a touch screen device according to an exemplary embodiment of the present invention.

FIG. 5 is an exemplary view of a screen displayed according to the file searching method shown in FIG. 4.

`` Explanation of symbols for main parts of drawings ''

10: page setting unit 20: control unit

30: storage unit 40: display unit

41: File Area 42: Scroll Area

42a: scroll bar 43: page up / down icon

44: File up / down icon 45: Current location display area

50: detection unit 60: position calculation unit

The present invention relates to a touch screen device, and more particularly, to a touch screen device for searching a plurality of file lists by file page using a scroll function and a file search method thereof.

The touch screen device is applied to various terminal devices to output menus, operation states, data, etc. as pictures, texts, and images. Recently, various types of display devices, such as liquid crystal display (LCD) panels and plasma display panels (PDP), have been developed in combination with touch screen technology. . The touch screen device has been applied to small and lightweight portable devices.

In particular, MP3 players that play audio files such as MPEG3 (MP3) files among portable devices can store music by storing a large number of MP3 files in the internal memory and the external memory, which have recently increased in size. Make it easy to listen.

When a plurality of audio files are stored in the MP3 player, the user must manually manipulate the navigation keys to move to the file to be selected. For example, FIG. 1 is an exemplary view of a screen for searching for an audio file in an MP3 player without a conventional touch screen.

1 includes a file list, a cursor 1 for displaying a currently designated file, and up / down keys 2 and 3 for moving in units of files. As shown in the figure, a certain number of file lists are displayed among a plurality of file lists (for example, 500 audio files). In such a conventional MP3 player, for example, when the user moves from 'file 2' shown in FIG. 1 (a) to 'file 275' shown in FIG. Must perform 223 up-key (2) operations or 273 down-key (3) operations.

As described above, when a plurality of files are stored in the related art, the conventional portable device takes a lot of time and effort to operate to move to a file to be selected.

Accordingly, an object of the present invention is to provide a touch screen device having a scroll function so that a file list can be moved by page and searched easily.

Another object of the present invention is to provide a file searching method of a touch screen device which searches and moves a plurality of file lists by page unit using a scroll function.

According to an aspect of the present invention, there is provided a touch screen device including: a display unit configured to display a plurality of file lists and to display a scroll area for searching for the files; A page setting unit which sets the file list in units of pages by a predetermined number; And a controller for searching the file in units of pages according to a touch manipulation of the scroll region and displaying the file on the display unit.

The display unit may further include a file area displaying the file list and a current location display area displaying a location of a file currently displayed in the file area.

The display unit may further include a page moving menu for receiving the page unit movement of the file list and a file moving menu for receiving the file unit movement of the file list.

The page move menu includes a page up menu for receiving a move to a previous page of the currently displayed file page and a page down menu for receiving a move to the next page of the currently displayed page.

Preferably, the menu is an icon.

The current position may be a page number currently displayed relative to the total number of pages or a file number of a page currently displayed relative to the total number of files.

Preferably, the scroll area and the file area are configured to alternately be activated and deactivated according to a touch operation.

The scroll area is configured to include a scroll bar that displays the location of the currently displayed file page and receives scroll movement.

The display unit is preferably a touch screen.

According to the present invention, a sensing unit for sensing the touch-operated position, a position calculating unit for calculating a position where a scroll bar is displayed on the scroll area according to the detected position, and corresponds to the touch-operated position in the controller It is preferable that the storage unit further comprises a storage for storing the file to provide a file.

The file search method of the touch screen device according to the present invention for achieving the above object is a step of setting a plurality of file list by a predetermined number of page units, and the touch applied to the scroll region for searching the file list And detecting a manipulation, searching for and displaying a page corresponding to a position where the touch manipulation is completed by moving the set page unit according to the detected touch manipulation.

Preferably, the scroll area alternately switches an activated state and an inactivated state each time the touch operation occurs.

The scroll region in the activated state is displayed in a different color or enlarged in size so as to be distinguished from the scroll region in the inactive state.

The searching / displaying step may include calculating a position at which the scroll bar is to be displayed on the scroll area according to the detected touch operation, moving and displaying the scroll bar at the calculated position, and ending the touch operation. And searching for and displaying the corresponding page for the calculated position, wherein the searching / displaying step preferably displays the current position of the corresponding page displayed according to the touch operation in the current position display area. Do.

The current position is preferably represented by the calculated page number relative to the total number of pages or a file number belonging to the calculated page corresponding to the total number of files.

According to the present invention having the above-described configuration, since a plurality of file lists are moved in units of pages by using a scroll function, a file page including a file to be selected can be easily searched.

Hereinafter, a touch screen device and a file searching method thereof according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

In the present embodiment will be described using an MP3 player with a touch screen for convenience.

2 is a block diagram of an MP3 player with a touch screen according to a preferred embodiment of the present invention, and FIG. 3 is an exemplary view of a screen displayed on the display unit shown in FIG.

In FIG. 2, the present invention includes a page setting unit 10 for setting a predetermined number of files in one page unit among a plurality of file lists. Accordingly, the present invention searches for and displays a file in the set page unit in the file search mode.

In addition, the present invention includes a display unit 40 in the form of a touch screen that performs information display and information input functions. Referring to FIG. 3, the display unit 40 includes a file area 41 displaying the file list, a scroll area 42 for receiving a scroll search of the file, and a location or touch manipulation of a file currently displayed. It includes a current position display area 45 for displaying the position of.

The file area 41 displays the pages set by a predetermined number (for example, eight in FIG. 3) by the page setting unit 10 among the plurality of file lists.

In addition, the scroll area 42 includes a scroll bar 42a which displays the position of the file page currently displayed on the screen of the entire file page and receives movement. The scroll area 42 is preferably in an inactive state in order to prevent a malfunction when the initial file page is displayed as the file search mode is designated. Accordingly, when the scroll bar 42a or the scroll area 42 is touched and activated according to the control operation of the controller 20, the display unit 40 enlarges the scroll area 42 and displays the color darker. In other words, it is preferable to distinguish between the inactive state and the active state by displaying in different colors.

In addition, the current position display area 45 may display the current file number 45a relative to the total number of files, and preferably, the page number 45b currently displayed relative to the total number of pages on the scroll area 42. ) Is displayed.

In addition, page scroll menus 43a and 43b are provided above and below the scroll area 42 to search the file list by page unit, and above and below the file area 41 to move by file unit. File moving menus 44a and 44b are provided. In this case, the menus 43a, 43b, 44a, and 44b are preferably displayed as icons such as arrows.

As the display unit 40, various display devices such as a light emitting diode (LED), an organic light emitting diode (OLED) panel, an LCD panel, or a PDP may be used.

Again, as shown in FIG. 2, the present invention includes a sensing unit 50 for sensing a touch manipulation of a finger or a stylus pen applied to the scroll region 42. The detection unit 50 outputs a detection signal according to the touch operation. The sensing unit 50 is a thin layer provided on the front surface of the display unit 40 may be pressure-sensitive or electrostatic. Of course, it is also possible to apply a touch screen using an infrared light, but preferably the pressure-resistive or electrostatic type is used. The pressure-resistance type is provided with two membranes coated with a resistive material such that a constant interval is maintained, and a current flows through both membranes. In this case, when both membranes are touch-operated by applying pressure to the membranes, the amount of current flowing changes and senses the touched position. On the other hand, the electrostatic type is a touch screen in which a high frequency flows due to a voltage applied to both edges of glass coated with a conductive metal, and a touch operated position is detected by detecting a high frequency waveform that changes as a hand is touched.

The position calculation unit 60 calculates a position at which the scroll bar 42a is to be displayed on the scroll area 42 according to the detected touch operation from the detection unit 50, and corresponds to the calculated position. A control unit 20 is provided to retrieve a page from the storage unit 30 to be described below and display it on the display unit 40.

When the position calculation unit 60 detects a touch manipulation of a finger or a stylus pen on a predetermined portion of the scroll region 42 from the sensing unit 50, or detects that the scroll bar 42a is moved by touch manipulation. In accordance with the detection signal, the scroll bar 42a is continuously calculated to calculate the position where it can be displayed.

 When the detection signal of the first touch manipulation applied to the scroll region 42 is input, the controller 20 controls the display unit 40 to display the scroll region 42 in an activated state. . Subsequently, when a detection signal by a second touch operation is input, the control unit 20 causes the scroll bar 42a to be displayed at a position calculated according to the detection signal, and corresponds to the position of the scroll bar 42a. The display unit 40 is controlled to search for and display a file page. At this time, when the second touch operation is completed, the controller 20 controls the display unit 40 to display the scroll area 42 again in an inactive state. The controller 20 is a part for controlling the operation of the entire MP3 player as well as the control of the display as described above. The controller 20 is a part for operating the MP3 player according to the detection result of the detector 50.

In addition, the control unit 20 is connected to the storage unit 30 for storing the file. The storage unit 30 may be provided with a hard disk, but is preferably an internal memory provided in the MP3 player manufactured in a small size and light weight, or an external memory in the form of a mini card.

As described above, in the present invention, in addition to the general scrolling function in which scrolling is performed only by dragging the scroll bar 42a, when the predetermined position of the scroll area 42 is touch-operated, the scroll bar 42a is moved to the touch-operated position. Display. In addition, it should be noted that the present invention continuously moves and displays the scroll bar 42a as the touch operation is moved to a state in which the touch operation is not finished. Accordingly, the user estimates and estimates an approximate position of a file to be selected without directly touching the scroll bar 42a for scroll search. Subsequently, the user moves to the file page including the file to be selected while checking the current position display area 45 and ends the touch operation. Thus, the present invention can search a page including a file to be selected at once.

Hereinafter, the file searching method of the touch screen device according to the present invention will be described in detail with reference to FIGS. 2 to 5. FIG. 4 is a flowchart illustrating a file searching method of an MP3 player according to an exemplary embodiment of the present invention, and FIGS. 5A to 5C illustrate screens displayed according to the file searching method of FIG. 4. It is an illustration. This is performed by the controller 20 shown in FIG.

3 and 4, when the file search mode is set according to a menu operation not shown, the control unit 20 searches for a file page set as an initial screen among the file list stored in the storage unit 30, and then displays the file page. Control to display (S10). In detail, the display 40 displays a scroll bar 42a and a scroll area 42 on the right side of the file area 41 in which the file list is displayed. The page up icon 43a and the page down icon 43b for moving in the file page unit are displayed above and below the scroll area 42. In addition, a file up icon 44a and a file down icon 44b for moving a file unit are displayed above and below the file area 41. In this case, the file search mode is a state for file unit movement and selection by the file up / down icons 44a and 44b, and the controller 20 preferably displays the scroll area 42 in an inactive state. In addition, the display unit 40 displays the file number 45a currently displayed relative to the total number of files, or displays the current page number 45b relative to the total number of pages, thereby allowing the user to glance at the position of the currently displayed page. A current position display area 45 is provided above the scroll area 42 so as to be confirmed.

In a twelfth step S12, the detection unit 50 detects whether a user's finger or stylus pen is first touched to the scroll area 42. When the first touch manipulation is detected, the sensing unit 50 outputs a sensing signal to the control unit 20. Accordingly, the control unit 20 controls the display unit 40 to activate the scroll bar 42a and the scroll area 42 according to the detection signal (S14). For example, FIG. 5A illustrates an example of a screen on which a touch manipulation is applied to the scroll area 42. As shown in FIG. 5A, an initial page set to eight files is displayed in the file area 41 in the display unit 40, and the activated scroll area 42 is enlarged than the inactive state. It can be displayed in a dark color or in a different color to distinguish between inactive and active states. In addition, it is preferable that the file up / down icons 44a and 44b displayed above and below the file area 41 are in an inactive state that cannot be directly selected as opposed to the scroll area 42.

In a sixteenth step S16, the sensing unit 50 detects a second touch operation applied to the activated scroll bar 42a or the scroll area 42. Accordingly, when the second touch manipulation is detected in the scroll region 42, the controller 20 calculates a displayed position on the scroll region 42 corresponding to the touch-operated position through the position calculator 22. The scroll bar 42a is moved to the calculated position and displayed (S18). Subsequently, the sensing unit 50 continuously detects the movement of the touch operation (S20). Thus, the controller 20 calculates the position at which the touch operation is moved to display the scroll bar 42a by moving it (S22). In addition, the control unit 20 causes the current position display area 45 to display the file number 45a corresponding to the moved position relative to the total number of files or the moved position relative to the total number of pages according to the calculated position. It is preferable to cause the page number 45b corresponding to the display to be displayed. Accordingly, the user touches an approximate location of the scroll area 42 to move the scroll bar 42a to check the current location display area 45, while displaying a file page including a file to be selected by the user. Ends after moving the touch operation.

For example, referring to (b) and (c) of FIG. 5, a method of searching for 'file 275' from 'file 2' will be described. The user may select a location of 'file 275' from the total number of files 500. Inferred, the scroll bar 42a or the scroll area 42 is touch operated. That is, when the user guesses the touch manipulation position A point, when the detection signal according to the touch manipulation is input from the sensing unit 50, the control unit 20 controls the touch manipulation through the position calculating unit 22. The position at which the scroll bar 42a is displayed on the scroll area 42 corresponding to the calculated position is calculated, and the scroll bar 42a is moved to the calculated position (point A) and displayed. In addition, the control unit 20 causes the current position display area 45 to display the file number 45a corresponding to the moved position, that is, '241/500' or the total number of files, according to the calculated position. It is preferable to display the page number 45b corresponding to the moved position relative to the number of pages, that is, '31 / 63 '. However, in this case, since the file to be selected is not displayed by one touch operation, the user continues to maintain the touch operation. Accordingly, the user moves the touch operation (moving from position A to position B) so that the page including 'file 275' is displayed while checking the current position display area 45, and 35 including the 'file 275' is included. When the second page is displayed, the touch operation ends.

When the touch operation is terminated in the twenty-fourth step (S24), the control unit 20 controls to display and display the file list of the file page corresponding to the position where the touch operation is terminated from the storage unit (S26). . In this case, the control unit 20 may switch the file area 41 to an active state and receive an operation for selecting a file.

Subsequently, if one audio file is selected from the file page displayed on the display unit 40, the controller 20 plays the selected audio file and outputs music (S28).

Through the above process, the touch screen device and the file searching method according to an embodiment of the present invention can easily search for a file page including a file to be selected by moving in units of pages according to a touch operation applied to a scroll region. have.

Accordingly, the present invention is one touch operation in accordance with the movement of the page unit using the scroll function compared to the conventional file search method that requires 200 or more key operations for the file search identical to the conditions illustrated in the above embodiment. You can search the file page containing the file you want to select.

In the above embodiment, the corresponding page is displayed when the touch operation is completed, but this is a setting for increasing the display speed. However, the present invention may be set to search for a file while checking the file name by displaying the current location display area according to the touch operation and immediately displaying the corresponding page in case the user does not know the number of the file to be selected. have.

In the above embodiment, the present invention has been described using an MP3 player for reproducing an audio file. It can be applied to various digital devices such as multifunctional portable devices and computers including these functions.

As described above, the present invention has been described with reference to the embodiments shown in the drawings, which are merely exemplary, and a person of ordinary skill in the art without departing from the spirit and scope of the present invention. It will be apparent that various modifications, changes, and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

As described above, the present invention displays a scroll area along with menu information and a file list to move and display a file page according to a scroll bar displayed on a touch screen or a touch operation applied to the scroll area. Thus, the present invention can move to a file page containing a file to be selected using the current location display. As a result, the present invention can easily search for necessary files or data even when a plurality of files or data are stored.

Claims (18)

A display unit displaying a list of files and displaying a scroll area for searching for the files; A page setting unit which sets the file list in units of pages by a predetermined number; And a control unit which searches for the file in units of pages and displays the file in the display unit according to a touch manipulation of the scroll area. The method of claim 1, wherein the display unit, A file area for displaying the file list; And a current location display area for displaying a location of a file currently displayed in the file area. The method of claim 2, wherein the display unit, A page movement menu for receiving the page unit movement of the file list; And a file moving menu for receiving the file unit movement of the file list. The method of claim 3, wherein the page move menu, A page up menu for receiving a movement to a previous page of the currently displayed file page; And a page down menu for receiving a movement to the next page of the currently displayed page. The method according to claim 3 or 4, And the menu is an icon. The method of claim 3, wherein the current position is, And a page number currently displayed relative to the total number of pages. The method of claim 3, wherein the current position is, And a file number of a page currently displayed relative to the total number of files. The method according to claim 1 or 2, And the scroll area and the file area are alternately switched to an active state and an inactive state according to a touch operation. The method of claim 1, wherein the scroll region, And a scroll bar that displays the location of the currently displayed file page and receives scroll movement. The method of claim 1, The display unit is a touch screen device, characterized in that the touch screen. The method of claim 1, A sensing unit for sensing the touch operated position; A position calculator configured to calculate a position at which a scroll bar is displayed on the scroll area according to the detected position; And a storage unit which stores the file to provide a file corresponding to the touch operated position to the controller. Setting a plurality of file lists by a predetermined number of page units, Detecting a touch manipulation applied to a scroll region for searching the file list; And searching for and displaying a page corresponding to a position where the touch manipulation is completed by moving the set page unit according to the detected touch manipulation. The method of claim 12, wherein the scroll region, Whenever the touch operation occurs, the file search method of the touch screen, characterized in that for switching between the active state and the inactive state. The scroll zone of claim 13, wherein the scroll area in the active state is: The file search method of the touch screen, characterized in that the display is displayed in a different color or enlarged size to be distinguished from the scroll area of the inactive state. The method of claim 12, wherein the searching / displaying step, Calculating a position at which the scroll bar is to be displayed on the scroll area according to the detected touch operation; Moving and displaying the scroll bar at the calculated position; And searching for and displaying the corresponding page of the calculated position when the touch manipulation is completed. The method of claim 15, wherein the searching / displaying step, And a current position of the corresponding page displayed according to the touch manipulation in a current position display area. The method according to claim 15 or 16, The current position is a file search method of the touch screen, characterized in that for displaying the calculated page number relative to the total number of pages. The method according to claim 15 or 16, And the current position is displayed as a file number belonging to the calculated corresponding page to the total number of files.

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