JP2007240925A - Display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device which can discriminate character strings even during a scrolling operation. <P>SOLUTION: The display device includes a display part 11 for displaying a plurality of character strings and a cursor showing which of the character strings is selected, an operation part 8 for moving the cursor 7 and scrolling a plurality of character strings 6 in the display part 11, and a control part 9 for controlling the display of the display part 11 in accordance with the operation of the operation part 8. The control part 9 controls the display of the display part 11 so that the moving speed of the cursor 7 and the scrolling speed of the plurality of character strings 6 are made different from each other, so that character strings can be discriminated even during the scrolling operation. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a display device that displays at a cursor moving speed and a character string scroll speed at which a character string of interest can be identified.

In general, as a method for displaying a large number of characters on a display device having a limited area, a method of scrolling and displaying a character string in a horizontal direction or a vertical direction is known. The reason why the character string is scrolled in the horizontal direction is to display all characters that cannot be displayed side by side, and a method of moving and displaying each character is used.

  Also, scrolling the character string in the vertical direction is to display a character string that cannot be displayed when there are multiple character strings in the vertical direction. The method to be used is used.

  At that time, in normal vertical scrolling, the scroll speed of the character string (the speed at which the character string moves in the vertical direction) is automatically adjusted by operating a button of a device having a display device.

  For example, Patent Document 1 discloses a scroll display device and a scroll display method that automatically adjust the scroll speed based on character parameter information.

  FIG. 6 is a display screen for explaining the scroll display method disclosed in Patent Document 1. In FIG. 6, the display screen has a character display area 12, a display screen “close” button 13 provided on the right side of the character display area 12, and a scroll operation bar 14.

  The character “◯” displayed in the character display area 12 is automatically scroll-displayed when the scroll operation bar 14 is operated by the user.

As shown in FIG. 6A, when a character with a small character size is displayed on a narrow display screen, the scroll speed is assumed to be a normal speed. On the other hand, as shown in FIG. 6B, when a character with a large character size is displayed on a wide display screen, the scroll speed is set to be relatively high. Thus, it is possible to perform easy-to-read character display at a scroll speed suitable for the displayed character size.
JP 2005-17651 A

  However, in the case of a narrow-area display device in which the character size is fixed and the vertical character display area is narrow, there is a problem in that it is difficult to identify a character string to be displayed when a scroll operation is performed.

  The display device of the present invention includes a display unit that displays a plurality of character strings and a cursor indicating that any one of the character strings is selected, and the display unit moves the cursor and An operation unit for performing scrolling; and a control unit for controlling display of the display unit in accordance with an operation of the operation unit, wherein the control unit is configured to scroll the cursor and move the plurality of character strings. The display of the display unit is controlled so that the speed is different.

  With this configuration, the moving speed of the cursor and the scrolling speed of the character string can be controlled.

  According to the present invention, since the speed of cursor movement and scrolling can be controlled according to whether the cursor moves or the character string scrolls, the target character string can be easily read even during scrolling, and the character string desired by the user can be read. The operability can be improved when performing the search.

(Embodiment 1)
FIG. 1 is a diagram showing an outline of the appearance of a device having a display device according to Embodiment 1 of the present invention. 1 is a device main body, 2 is an operation panel, and 3 is a display screen. FIG. 2 is a diagram showing an outline of the configuration of the operation panel 2. Reference numeral 4 denotes a switch arranged at the lower part of the operation panel. The switch is turned on by pressurizing the operation panel 2. In FIG. 2, four switches 4 are arranged in the vertical direction, and the four switches 4 are sequentially turned on by moving (sliding) the operation panel 2 while pressing the operation panel 2 with a finger in the vertical direction. . The display screen 3 is updated according to the speed at which the finger moves between the switches. This is a so-called touch pad. In addition to the pressure-sensitive type that senses movement by finger pressure, it may be an electrostatic type that senses position information using finger static electricity, as long as it is a touch pad that synchronizes finger position and cursor movement. .

  In the embodiment of the device of the present invention, four switches 4 are arranged in the vertical direction, but the number is not limited to four. Further, depending on the display state of the display screen 3, the switch 4 may be arranged in the horizontal direction.

  In the embodiment of the device of the present invention, the cursor movement and scrolling operations are performed using the touch pad, but the same operation may be realized by long-pressing the operation buttons by button operations.

  FIG. 3 is a diagram showing an outline of the operation of the display screen.

  FIG. 3A is a diagram showing an operation state of cursor movement when a music track list is displayed on the display screen of the display device. On this display screen 3, a character string of 7 lines in the vertical direction and 10 characters in the horizontal direction can be displayed. An item display 5 indicates that the track is a music track list. Reference numeral 6 denotes a song title (character string) of the music track. The portion where the character string color 7 and the background color are displayed in reverse is the position where the cursor is currently located.

  The user operates the operation panel 2 of the device 1 having the display device to select desired music from the music track list.

  For example, when there is no song title title of a desired music track in the currently displayed music track list, the user operates the operation panel 2 to move the cursor 7.

  At this time, the cursor 7 only moves on the music track list, and the music title title 6 of the music track does not move.

  FIG. 3A is a diagram after the cursor 7 has moved from the state of FIG.

  Since the operation panel of the display device according to the first embodiment of the present invention uses a touch pad, when only the cursor 7 moves as described above, the moving speed of the cursor 7 is determined by operating the operation panel 2 of the user. It is possible to identify the song title title 6 of the music track list by following the speed of (sliding with a finger) and improving the operability.

  Next, as shown in FIG. 3B, when the cursor 7 is at the bottom line of the music track list and the song title title 6 of the music track is further below it, the position of the cursor 7 remains at the bottom line. Thus, the song title title 6 of the music track moves (scrolls) upward. The state after the movement is shown in FIG.

  The user looks at the music title title 6 of the music track on the bottom line with the cursor 7 to confirm whether it is the music title title 6 of the desired music track. Otherwise, the user operates the operation panel 2 and operates the desired music. The search is performed until the track title title 6 appears.

  In this case, while the user operates the operation panel 2, the entire music title title 6 of the music track moves upward, and new music track title titles 6 appear one after another in the cursor 7 at the bottom row. Therefore, if the scroll speed is too fast, the user may not be able to identify the song title 6 of the music track that appears.

  FIG. 4 is a block diagram showing components of the display device according to Embodiment 1 of the present invention. In FIG. 4, reference numeral 8 denotes an operation unit operated by the user, which corresponds to the operation panel 2 described in the above embodiment. Reference numeral 9 denotes a control unit, 10 denotes a clock interrupt unit, and 11 denotes a display unit, which corresponds to the display screen 3.

  FIG. 5 is a flowchart for explaining the processing operation of the display device according to the first embodiment of the present invention.

  As shown in FIG. 5, in step S1, setting is made so that the music track list described in FIG. The setting is performed by menu operation of the device, but is omitted in this description.

  In step S <b> 2, the switch 4 of the operation unit 8 reacts according to the operation of the operation unit 8 by the user and propagates the operation signal to the control unit 9.

  In step S3, the control unit 9 that has received the operation signal sends a clock interrupt request to the clock interrupt unit 10.

  In step S4, it is determined whether the control part 9 is a cursor movement display. In the case of cursor movement display, the process proceeds to step S5. If the determination result is “No” (scroll display), the process proceeds to step S7. At this time, the control unit 9 determines whether the cursor 7 is displayed by determining where the cursor 7 is located on the display screen 3. That is, if the cursor 7 is not positioned at the uppermost or lowermost music title title 6 displayed on the display screen 3, it is determined that the cursor is moving and displayed, and the uppermost or lowermost music title title 6 is displayed. If it is located, it is determined that the display is scrolling.

  In step S5, an interrupt signal is thrown to the control unit 9 at a clock interrupt interval corresponding to the case of cursor movement display from the clock interrupt unit 10, and the timing for the control unit 9 to update the display screen of the display unit 11 is achieved. .

  In step S6, the display screen of the display unit 11 is updated at the timing selected in step S5. At this time, the cursor of the display unit 11 moves by one character string.

  In step S7, an interrupt signal is thrown to the control unit 9 at a clock interrupt interval corresponding to the case of moving the character string from the clock interrupt unit 10, that is, the scroll display of the song title title 6 of the music track. The timing for updating the display screen is planned.

  In step S8, the display screen of the display unit 11 is updated at the timing selected in step S7. At this time, the song title of the music track on the display unit 11 moves by one character string.

  In step S <b> 9, it is determined whether an operation signal is subsequently propagated from the operation unit 8 to the control unit 9.

  When there is no operation signal from the operation unit 8, the update of the display screen of the display unit 11 ends.

  If there is an operation signal from the operation unit 8 subsequently, the process is performed again from step S3.

  In the above description, the clock interrupt interval is 50 msec in the case of cursor movement display and 200 msec in the scroll display of the song title title 6 of the music track in the embodiment of the present invention device. Note that the clock interrupt interval is not limited to these values, and any other value can be used as long as the scrolling speed is slower than the cursor moving speed and can withstand the identification of the song title of the music track. I do not care. By making the scrolling speed slower than the cursor moving speed, the visibility of the character string at the time of scrolling when the entire character string on the display screen 3 moves is improved.

  As described above, by controlling the moving speed of the cursor 7 and the scroll speed of the music title title 6 of the music track to be different, the music title title 6 of the music track can be identified and the operability can be improved. .

  In addition, the scroll speed is initially set at a clock interrupt interval of 200 msec, and after a few seconds at a clock interrupt interval of 100 msec, and the scroll speed is gradually increased, so that the position of the target character string is quickly increased. It is possible to move and to improve the search operability.

  As a method of changing the clock interrupt interval step by step, for example, there is a method in which the control unit 9 counts the number of generated clock interrupt signals and when the count number reaches a predetermined value.

Furthermore, as another method of changing the clock interrupt interval step by step, the control unit 9 has a timer function to measure the time that the signal continues after the clock interrupt signal is generated,
There is a method that is performed when a predetermined time has elapsed.

  Note that the present invention is not limited to the method of changing the clock interrupt interval described above, and another method may be used.

  In Embodiment 1 of the present invention, the character string is used as the title name of the music track. However, the present invention is not limited to this, and an artist name, an album title, or the like may be used.

  The display device according to the present invention enables identification of a character string at the time of cursor movement and scrolling, and can improve operability at the time of searching. Therefore, the display device has only a narrow display area like a portable device. Useful in display devices and the like.

The figure which shows the external appearance outline | summary of the apparatus which has a display apparatus in Embodiment 1 of this invention. The figure which shows the structure outline | summary of the operation panel of the display apparatus The figure which shows the operation | movement outline | summary of the display screen of the display device Block diagram showing components of the display device Flow chart for explaining the processing operation of the display device Schematic diagram when scrolling in a conventional display device

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Apparatus main body 2 Operation panel 3 Display screen 4 Switch 5 Item display 6 Song title 7 Cursor 8 Operation part 9 Control part 10 Clock interruption part 11 Display part 12 Character display area 13 Display screen "close" button 14 Scroll operation bar

Claims (4)

A display unit for displaying a plurality of character strings and a cursor indicating that any one of the character strings is selected;
In the display unit, an operation unit for moving the cursor and scrolling the plurality of character strings;
A control unit that controls display of the display unit according to an operation of the operation unit,
The said control part is a display apparatus which controls the display of the said display part so that the moving speed of the said cursor and the scroll speed of these character strings may differ. The display device according to claim 1, wherein the control unit controls display of the display unit such that a scroll speed of the plurality of character strings is slower than a moving speed of the cursor. The operation unit has a touch pad for moving the cursor and scrolling the plurality of character strings,
The display device according to claim 1, wherein the control unit controls display of the display unit so that a cursor moves at a speed synchronized with a speed of tracing the touch pad with a finger. The display device according to claim 1, wherein the control unit controls display of the display unit so that the scroll speed is increased stepwise.