JP2008015684A - Display controller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display controller allowing high-speed scrolling over items in a displayed list. <P>SOLUTION: A user carries out input operation from scroll key areas J7 and J8 inside the list and a speed setting area J9 for setting a scrolling speed and the like. The display controller detects a moving direction and a moving speed of the input operation to determine the scrolling direction and speed corresponding to them, and based on them, can vary the scrolling speed over the items in the list. In this way, the user can quickly search for a desired music. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a display control apparatus having a function of scrolling items in a list displayed on a display at high speed.

  The touch panel is mounted on a liquid crystal or CRT screen, also called a touch screen, and is widely used as an input means to electronic devices such as PDAs, bank ATMs, station ticket machines, navigation devices, and AV devices. . When the screen is touched by a finger or a dedicated pen, the touch panel detects the touched position and thereby can determine whether or not an input operation has been performed. There are two types of touch panels: one that is placed under the display to detect pressure changes, and the other that covers the screen with a dedicated transparent screen. Further, there are a pressure-sensitive method and an electrostatic method for detecting contact with the screen. The former senses changes in pressure, and the latter senses electrical signals due to static electricity.

  Patent Document 1 relates to a touch panel capable of minimizing damage to a conductive transparent film and a manufacturing method thereof. The touch panel includes a display panel on which a scroll bar is displayed, an upper transparent sheet attached to the display panel, a lower transparent sheet isolated from the upper transparent sheet, and a direction formed on the upper transparent sheet and perpendicular to the scroll bar. An upper transparent film on which the electrode is formed, and a lower transparent film formed on the lower transparent sheet to form the electrode.

JP 2003-288168 A

  FIG. 1 is a display example of a list in an in-vehicle audio device. A music list for searching for music to be played is displayed on the display. The list includes a plurality of items J1 to J6 displaying the names of the music, and scroll keys J7 and J8 for scrolling each item up and down one by one. include. When there is no desired music in the list, the user presses the scroll key J7 or J8 to scroll the items in the vertical direction and search for the desired music. For example, the user can scroll the items in the list downward by one item by pressing the scroll key J8 with a finger.

  However, in recent years, due to the increase in capacity of storage devices used for audio devices and the like, many pieces of music data are stored in the audio devices. The user must search for the desired music from among them. As described above, if the scroll key is operated to scroll one item at a time, the time required for searching for a desired music becomes longer. On the other hand, it is possible to detect the scrolling speed by using a rotary / shuttle combined encoder and the like, and scroll the item at an arbitrary speed. There was a problem that was not so good.

  The present invention has been made to solve the above-described conventional problems, and provides a display control device capable of changing the scroll speed of a plurality of items displayed on a display by an input operation such as a touch panel. For the purpose.

  The display control device according to the present invention includes a display, input detection means for detecting an input operated corresponding to an area displayed on the display, storage means for storing information, and information read from the storage means Display control means capable of displaying a plurality of items corresponding to the display and scrolling the displayed items, and scrolling of the items displayed on the display based on a change in position of the input operation detected by the input detection means Scroll control means for controlling the speed.

  Preferably, the scroll control means controls the scroll speed based on the moving speed of the input operation, and scrolls the item at a higher speed than in the normal operation when the moving speed of the input operation is larger than the threshold value. The scroll control means scrolls a plurality of items at a time and controls the scroll direction based on the movement direction of the input operation.

  Preferably, the input detection unit detects position data of the input operation, and the scroll control unit calculates a position change of the input operation from the position data. The display control means displays a list including a plurality of items in the list on the display, and the scroll control means controls a scroll speed of the plurality of items. Furthermore, the list includes a speed setting area for setting a scroll speed, and the scroll control means controls the scroll speed of items in the list when the position of the input operation is changed in the speed setting area. .

  Preferably, the list includes a scroll key area for instructing scrolling of items in the list, and the scroll control means is configured to perform a position change of the input operation in the speed setting area and an input operation to the scroll key area. When there is, scroll through the items in the list faster than in normal operation. Further, the scroll control means increases the scroll speed as the moving speed of the input operation increases.

  According to the display control apparatus of the present invention, the user can arbitrarily change the scrolling speed of a plurality of items displayed by operating an area corresponding to a display such as a touch panel, thereby obtaining desired information. Can be displayed or searched quickly.

  The best mode for carrying out the present invention will be described in detail with reference to the drawings.

  FIG. 2 is a block diagram illustrating the configuration of the display control apparatus according to the present embodiment. The display control device 12 of this embodiment includes a display 20, a system control device 30, and an audio device 40. In the display 20, a touch panel 24 that allows input by touching a finger or the like is mounted on a monitor 22 such as a liquid crystal. As the touch panel 24, for example, a sheet-like one provided with a transparent electrode can be laminated on a liquid crystal monitor. Preferably, the display 20 includes a display unit in which the monitor 22 and the touch panel 24 are integrated.

  The system control device 30 is connected to the display 20 and can be connected to a plurality of electronic devices. The system control device 30 serves as an interface between the display 20 and a plurality of electronic devices. In the present embodiment, an audio device 40 is connected to the system control device 30, and in addition to this, another electronic device 50 is connected. The other electronic device 50 is, for example, a device such as a portable device or a car navigation device. When a plurality of electronic devices are connected, which electronic device is used as a source is determined by an instruction from the user. In response to an instruction from the user, the system control device 30 supplies an enable signal for making the selected electronic device operable to the selected electronic device via the communication line S1. The electronic device in the operable state can supply image data to the monitor 22 of the display 20 via the image signal line 46 and display a desired image there.

  The system control device 30 includes a detection unit 32, a main microcomputer (hereinafter, main microcomputer) 36, and a memory 38. The detection unit 32 detects an input operation to the touch panel 24 and outputs detected coordinate position data. The main microcomputer 36 receives the detection result of the detection unit 32, determines whether the input operation to the touch panel 24 is valid or invalid, and performs data communication such as a control signal between the audio device 40 and another electronic device 50. Control. Whether or not the input operation is valid is performed using the input operation determination data. The input operation determination data is supplied from the audio device 40 and stored in the memory 38.

  The audio device 40 includes a main microcomputer 42 that performs communication and the like with the system control device 30 and an audio microcomputer 44 that controls a reproduction operation and the like of the audio device 40. Music data, user interface image data, and the like are stored in a large-capacity storage medium 48 such as a hard disk. Music data downloaded from an external server using communication means may be stored in the storage medium 48. When reproducing the music, the audio microcomputer 44 reads the music data stored in the storage medium 48 and outputs the audio from the speaker 60, or the image data for the user interface to the monitor 22 via the image signal line 46. Supply.

  FIG. 3A is a display example of a list displayed on the display 20. For example, a music list including a plurality of music is displayed when the audio device 40 selects or plays back music. The music list image data is supplied from the audio microcomputer 44. In the music list, display areas J1 to J9 corresponding to the touch panel input are drawn, and an input can be given by touching any of the display areas. The song display areas J1 to J6 are areas for displaying desired song names, and six song names are simultaneously displayed in the list. The scroll key display areas J7 and J8 scroll the music names in the list and display other music names that are not displayed. The scroll speed setting area J9 is an area for setting the scroll speed of the music names in the list.

  The memory 38 stores input determination data for determining whether or not the input operation (touch operation location) on the touch panel 24 is within a predetermined area of the image displayed on the monitor 22 as described above. ing. The input operation determination data includes coordinate position data as shown in FIG. The coordinate position data R1 to R9 correspond to the display areas J1 to J9 instructing input of the music list. If the input operation is included in the coordinate position data R1 to R9, the main microcomputer 36 determines that the input operation is valid. If the input operation is not included in any of the coordinate position data R1 to R9, the main microcomputer 36 The input operation is determined to be invalid. Further, as will be described later, the main microcomputer 36 receives the trajectory data when the user moves the finger with respect to the operation input to the coordinate position data R9 corresponding to the speed setting region J9 by the detecting unit 32, and based on the received data, The moving speed and moving direction are calculated.

  Next, the operation of searching for music in the display control apparatus according to the present embodiment will be described with reference to the flowchart of FIG. When there is an instruction to select a song from the user, the audio microcomputer 44 searches the reproducible song data stored in the storage medium 48, reads the song name as information for identifying the song data, and selects the song name. The listed image data is output to the monitor 22 via the image signal line 46 (step S101). Thereby, the music list as shown in FIG. 3A is displayed on the monitor 22. At this time, the music is displayed, for example, arranged in the order of 50 notes or alphabetical order.

  Next, the user selects a desired music piece. When there is no desired music in the list item shown in FIG. 3A, the user touches the scroll key areas J7, J8 and / or the speed setting area J9 to instruct the music names in the list to scroll. be able to.

  The main microcomputer 36 receives an input operation to the touch panel 24 through the detection unit 32, and determines whether or not it is an instruction to scroll the music in the list (step S102). When the movement locus of the input operation obtained from the detection unit 32 corresponds to one of the scroll key areas J7, J8 or the speed setting area J9, the main microcomputer 36 determines a scroll instruction. (Step S103).

  Next, when the main microcomputer 36 determines the scroll instruction, the main microcomputer 36 determines the scroll speed (step S104). If the input operation corresponds to the coordinate position data R7 or R8 of the scroll key area J7 or J8 (step S105), the main microcomputer 36 determines that the scroll speed is the normal mode (step S106). The normal mode means that the music in the list is moved up or down one item at a time. On the other hand, when the input operation corresponds to the coordinate position data R9 in the speed setting area J9, the main microcomputer 36 determines whether or not to set the scroll speed to the high speed mode.

  That is, the main microcomputer 36 calculates the finger movement speed when the user traces with the finger from the change in position of the input operation, that is, the movement trajectory. The mode is determined (step S108), and if it is smaller than the threshold value, the normal mode is determined (step S106). In the high speed mode, the items in the list are scrolled five items at a time. Further, the main microcomputer 36 determines the moving direction of the finger from the moving track of the finger.

  The main microcomputer 36 transmits the determination result of the scroll direction and the scroll speed to the main microcomputer 42 and the audio microcomputer 44 of the audio device 40 via the communication lines S1 and S2 (step S109).

  The audio microcomputer 44 reads the music title to be displayed on the display from the storage medium 48 based on the determined moving direction and moving speed. In the high-speed mode, the audio microcomputer 44 creates a music list including music names that will be displayed when the five items are scrolled, and displays the image data via the image signal line 46 on the display 20. And displayed on the monitor 22 (step S110).

  FIG. 5 shows an operation example when scrolling the music titles in the list in the high-speed mode. For example, the user traces the speed setting area J9 of the touch panel 24 with his / her finger, so that the main microcomputer 36 determines the scroll direction and speed, and in the high speed mode, the audio microcomputer 44 has five items of music. The name is scrolled so that the music list shown in FIG. 5 is changed from the state shown in FIG.

  Thus, the user scrolls the items in the list by using the scroll function in the normal mode and the high-speed mode, promptly displays the desired music on the monitor 22, and when the desired music is displayed, the user The music display areas J1 to J6 are touched, and the music to be played back is selected. As a result, the audio device 40 reads the music data stored in the storage medium 48 and plays back the music selected by the input operation from the speaker via the audio signal line 62.

  In the above-described embodiment, the scroll direction is determined based on the finger movement direction. However, the scroll direction may be determined by a combination of the operation input to the speed setting area J9 and the scroll key areas J7 and J8. For example, when the user moves the finger from the speed setting area J9 to the scroll key area J7 without releasing his / her finger, it is determined that the scroll is fast scrolling upward, and the finger is moved from the speed setting area J9 to the scroll key area J8. In such a case, it may be determined that the high-speed scroll is in the downward direction. In this case, the high-speed scrolling is continuously performed while the touch to the scroll key areas J7 and J8 is continued, and the scroll is stopped when the touch to the scroll key areas J7 and J8 is released. To do. Alternatively, high-speed scrolling may be started when the scroll key area J7 or J8 is touched within a predetermined time (for example, 1 second) after touching the speed setting area J9.

  Further, in the above embodiment, the scroll speed is determined according to the speed of the user tracing the speed setting area J9 of the touch panel 24. However, even if the scroll speed is determined according to the number of times the user touches the speed setting area J9 of the touch panel 24 or the like. Good. Further, the scroll speed is not limited to two stages of the normal mode and the high speed mode, and may be a multi-stage corresponding to the moving speed. The speed setting area J9 may be an area dedicated for high-speed scroll instruction, but a general scroll bar display area can also be used as a speed setting area.

  In the above-described embodiment, a touch panel is used as the input detection device. However, in addition to this, an input detection device that detects an input operated corresponding to an area displayed on the display may be used.

  Items displayed on the display are not particularly limited and include any information used to identify the data. For example, information such as a name and an index associated with data is included. Furthermore, the display form of items and lists is not particularly limited, and the items only need to be displayed in a scrollable state.

  As described above, according to the present embodiment, the user can arbitrarily change the scroll speed of a plurality of items displayed by operating an area corresponding to a display such as a touch panel. Can be quickly displayed and searched.

  The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific embodiments according to the present invention, and various modifications can be made within the scope of the gist of the present invention described in the claims. Deformation / change is possible.

  The display control device according to the present invention can be widely used in electronic devices that execute processing in response to input from a user, such as navigation devices, AV devices, and ATMs.

It is a figure which shows the example of a display of the list by a vehicle-mounted audio apparatus. It is a block diagram which shows the structure of the display control apparatus which concerns on the Example of this invention. FIG. 3A is a diagram illustrating a display example of a list. FIG. 3B is a diagram for explaining the coordinate position data for input operation determination in FIG. It is a flowchart explaining the search operation | movement of the display control apparatus which concerns on this invention. It is an operation example when scrolling in the high-speed mode.

Explanation of symbols

12: Display control device 20: Display 22: Monitor 24: Touch panel 30: System control device 32: Detection unit 36: Main microcomputer 38: Memory 40: Audio device 42: Main microcomputer 44: Audio microcomputer 46: Image signal line 48: Storage medium 50: Other electronic device 60: Speaker 62: Audio signal line

Claims (10)

A display control device for controlling display of information displayed on a display,
Display,
An input detecting means for detecting an input operated corresponding to an area displayed on the display;
Storage means for storing information;
Display control means capable of displaying a plurality of items corresponding to information read from the storage means on a display and scrolling the displayed items;
Scroll control means for controlling a scroll speed of an item displayed on the display based on a change in position of the input operation detected by the input detection means;
A display control device. The display control device according to claim 1, wherein the scroll control unit controls a scroll speed based on a moving speed of an input operation. The display control device according to claim 2, wherein the scroll control unit scrolls the item at a higher speed than in a normal operation when the moving speed of the input operation is larger than the threshold value. The display control apparatus according to claim 3, wherein the scroll control unit scrolls a plurality of items at a time. The display control apparatus according to claim 1, wherein the scroll control unit controls a scroll direction based on a moving direction of an input operation. The display control apparatus according to claim 1, wherein the input detection unit detects position data of an input operation, and the scroll control unit calculates a position change of the input operation from the position data. The display according to claim 1, wherein the display control unit displays a list including a plurality of items on a display, and the scroll control unit controls a scroll speed of the plurality of items in the list. Control device. The list includes a speed setting area for setting a scroll speed, and the scroll control means controls the scroll speed of items in the list when the position of the input operation is changed in the speed setting area. The display control apparatus according to claim 7. The list includes a scroll key area for instructing scrolling of items in the list, and the scroll control means has a position change of the input operation in the speed setting area and an input operation to the scroll key area. The display control apparatus according to claim 7, wherein the items in the list are scrolled at a higher speed than in normal operation. The display control apparatus according to claim 1, wherein the scroll control unit increases the scroll speed as the moving speed of the input operation increases.

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