Information display device

Abstract

To provide a display device that facilitates content selection in a content reproduction device.SOLUTION: A content reproduction device, when the scroll speed of a scroll operation relative to a content list displayed on a display is less than a threshold, displays the content list in a first display mode for displaying list expressions and list buttons in the same size, and when the scroll speed is equal to or more than the threshold, displays the content list in a second display mode for displaying the list expressions and list buttons arranged at a center part of the content list in a size larger than that in the first display mode and displaying the list expressions and list buttons to be gradually reduced in size as approaching in the vertical direction from the center part.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present invention relates to a display control device that uses a touch panel on a display screen, and more particularly to an information display device that displays a list by scrolling it in response to an operation using the touch panel. [Background technology]

[0002] When enjoying music in a vehicle such as an automobile, a list of music information (e.g., music titles) may be displayed on a display device (e.g., LCD) installed in the vehicle, and desired music may be selected from the list. Also, when enjoying music on a portable music player, a list of music information (e.g., music titles) may be displayed on the display screen, and desired music may be selected from the list. Summary of the Invention [Problem to be solved by the invention]

[0003] However, when displaying a list of music information on a screen, if there is a large amount of music to display, there is a problem that the desired music cannot be found unless the user scrolls the screen several times or scrolls the list for a long time.

[0004] In particular, the display screens of vehicle-mounted display devices and portable music players have small screen sizes, making it difficult to display many titles on the screen, making scrolling even more difficult.

[0005] It is also possible to speed up the time it takes to reach the desired search target by increasing the scrolling speed, but in that case, there is the problem that it is difficult to find the desired search target from the list of music information that is being scrolled.

[0006] The present invention has been made in view of the above circumstances, and one example of an object of the present invention is to make it easier to find a desired search target from a list that is displayed by scrolling. [Means for solving the problem]

[0007] In order to achieve the above object, one aspect of the present invention is a display control device that displays an index section of selection items and a scrollable list of the selection items side by side on a display unit, the display control device including a control unit that displays each of the selection items in a first size when no operation is received on the display unit, and that scrolls the selection items when a scrolling operation on the index section is received, while displaying selection items that are not displayed in a predetermined position on the display unit in a second size smaller than the first size. Another aspect of the present invention is a display control method for a display control device that displays an index section of selection items and a scrollable list of the selection items side by side on a display unit, the display control method including a control step that displays each of the selection items in a first size when no operation is received on the display unit, and that scrolls the selection items when a scrolling operation on the index section is received, while displaying selection items that are not displayed in a predetermined position on the display unit in a second size smaller than the first size. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a schematic configuration diagram of a content playback device according to an embodiment of the present invention. [Figure 2] 10 is a flowchart showing the flow of a scroll display process performed by the content playback device according to the embodiment of the present invention. [Figure 3] 3 is a flowchart showing in detail the flow of the index section scroll display process in step S30 of FIG. 2. [Figure 4] 3 is a flowchart showing in detail the flow of the list section scroll display process in step S50 of FIG. 2. [Figure 5] 10 is an example of a screen displayed on a display unit in a scroll display process of the content playback device according to the embodiment of the present invention. [Figure 6] 10 is an example of a screen displayed on a display unit in a scroll display process of the content playback device according to the embodiment of the present invention. [Figure 7] 10 is an example of a screen displayed on a display unit in a scroll display process of the content playback device according to the embodiment of the present invention. [Figure 8] 10 is an example of a screen displayed on a display unit in a scroll display process of the content playback device according to the embodiment of the present invention. [Figure 9] 10 is an example of a screen displayed on a display unit in a scroll display process of the content playback device according to the embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0010] Fig. 1 is a schematic diagram of a content playback device 1 according to an embodiment of the present invention. As shown in Fig. 1, the content playback device 1 generally includes a display unit 2, an operation position detection unit 3, a content playback unit 4, a speaker 5, and a control unit 6. Here, the content playback device 1 is a device for playing music content, and when playing music content, it displays a list 7 of music content (hereinafter referred to as the content list 7) ​​on the display screen, allows the user to select desired music, and plays the selected music content. In this embodiment, the display screen is provided with a touch panel input interface, and the user is allowed to give instructions to the content playback device via this touch panel.

[0011] In this embodiment, the content playback device 1 is described as one function of a vehicle content playback device that is mounted on a vehicle such as an automobile and has functions such as a navigation device, a television receiver, a DVD player, and an audio playback device (CD player, HDD player), but the content playback device 1 is not limited to a vehicle content playback device. Any content playback device that has a touch panel display screen and is capable of playing music content may be used. For example, it may be a portable music player or a mobile information terminal. Also, in this embodiment, music content is treated as the search target in the list, but the search target in the list is not limited to music content. For example, a list of facility information such as restaurants and shops may be used, and the facility information may be used as the search target.

[0012] Specifically, the display unit 2 is an output interface configured with a display such as a color liquid crystal display (LCD). In this embodiment, a content list 7 of music content stored on a hard disk or the like of the content playback device 1 is displayed on the screen of the display unit 2.

[0013] Specifically, the operation position detection unit 3 is composed of a touch panel arranged on the image display surface of the display unit 2, and is an input interface that allows information to be input by touching operation information (content image, operation buttons, icons, etc.) displayed on the display unit 2. That is, the operation position detection unit 3 detects the operation position on the image display surface that the user touches, and outputs the detected position information to the control unit 6, which will be described later.

[0014] The content playback unit 4 is specifically composed of an audio playback device (CD player, HDD player) and the like, and is adapted to play back music content.

[0015] The speaker 5 outputs the sound of the content reproduced by the content reproduction unit 4.

[0016] The control unit 6 is specifically composed of a CPU, a ROM, a RAM, etc., and controls the entire content playback device 1. In more detail, the control unit 6 is configured to include an operation content determination unit 61, a scroll speed detection unit 62, a display control unit 63, and a content playback control unit 64.

[0017] The operation content determination unit 61 determines the content of the operation instruction given by the operator based on the position information output from the operation position detection unit 3. In this embodiment, the operation position detection unit 3 detects a scrolling operation in which the user scrolls the content list 7 displayed on the display unit 2 up and down with a finger, a selection operation in which the user selects a desired music title with a finger, and the like. For example, if the user touches the title display of a song named A in the content list 7 displayed on the image display surface with a finger, it is determined that an instruction to play song A has been given from the position of touch. Furthermore, if the user moves the finger continuously upward while touching the content list 7, it is determined that the content list 7 has been scrolled upward.

[0018] The scroll speed detection unit 62 detects the speed of the scroll operation when the operation content determination unit 61 determines that the operation content is a scroll operation. Specifically, it determines whether the speed of the scroll operation in the upward or downward direction of the screen is equal to or greater than a predetermined threshold.

[0019] The display control unit 63 performs display control on the display unit 2. More specifically, if the operation content determination unit 61 determines that the operation content is a scroll operation, the display mode is changed according to the scroll speed detected by the scroll speed detection unit 62, and the content list 7 is scrolled. That is, the content list 7 is displayed in two different display modes depending on whether the speed of the scroll operation in the upward or downward direction of the screen is equal to or greater than a predetermined threshold or whether it is less than the threshold. The two different display modes will be described in detail later.

[0020] The content playback control unit 64 controls the content playback unit 4 based on the operation content determined by the operation content determination unit 61. For example, if the operation content is to play selected music, the selected music is played.

[0021] Next, a scroll display process for scrolling the content list 7 of the content playback device 1 according to this embodiment will be described with reference to Figs. 2 to 9. Fig. 2 is a flowchart showing the flow of the scroll display process. Fig. 3 is a flowchart showing in detail the flow of the index section scroll display process in step S30 of Fig. 2, and Fig. 4 is a flowchart showing in detail the flow of the list section scroll display process in step S50 of Fig. 2. Figs. 5 to 9 are example screens displayed on the display unit 2, showing the display modes of the content list 7.

[0022] First, the scroll display process of the content playback device 1 will be described with reference to FIG.

[0023] When the content playback device 1 receives a request from the user to display a content list, it displays the content list 7 on the display unit 2 (step S10).

[0024] FIG. 5 shows the content list 7. In this embodiment, the content list 7 is displayed in a hierarchical structure, and includes an index section 71 that displays the index (first letter) of the music title, and a list section 72 that displays a list of the music titles. That is, the index section 71 is displayed in an index display area S1 on the left side of the screen, and the list section 72 is displayed in a list section display area S2 in approximately the center of the screen. Here, the list of music titles displayed in the list section 72 is such that music titles corresponding to the index letter in the index section 71 that is focused on are displayed as a list. In this embodiment, the focus is placed at a position slightly above the center of the screen; for example, in the case of FIG. 5, the focus is placed on the index letter "A."

[0025] In the initial display of the content list 7, the size of each music title field (rectangular list box) displayed in the list section 72 and the size of the characters (list text) displayed in each music title field are the same. Hereinafter, this display mode of the content list 7 will be referred to as the first display mode.

[0026] Next, the content playback device 1 determines whether or not the user has performed a vertical scroll operation on the index portion 71 (step S20). If the user has performed a vertical scroll operation on the index portion 71 (step S20: YES), the content playback device 1 executes an index portion scroll display process (described in detail later) (step S30).

[0027] If the user has not performed a vertical scroll operation on the index section 71 (step S20: NO), the content reproduction device 1 determines whether the user has performed a vertical scroll operation on the list section 72 (step S40). If the user has performed a vertical scroll operation on the list section 72 (step S40: YES), the content reproduction device 1 executes a list section scroll display process (described in detail later) (step S50). Note that if the user has not performed a vertical scroll operation on the list section 72 (step S40: NO), the content reproduction device 1 ends the scroll display process.

[0028] Next, the index section scroll display process will be described in detail with reference to FIG.

[0029] The content reproduction device 1 determines whether or not the scroll speed of the vertical scroll operation on the index portion 71 is less than a threshold value (step S31).

[0030] If the scrolling speed is less than the threshold (step S31: YES), the index portion 71 is scrolled in accordance with the scrolling operation (step S32), and the list portion 72 is displayed in the first display mode in accordance with the scrolling display of the index portion 71 (step S33). Fig. 6 shows the display mode of the content list 7 when the scrolling speed of the upward scrolling operation on the index portion 71 is less than the threshold. As shown in Fig. 6, the list portion 72 is scrolled upward while being displayed in the first display mode.

[0031] On the other hand, if the scrolling speed is equal to or greater than the threshold (step S31: NO), the index section 71 is scrolled in accordance with the scrolling operation (step S34), and the list section 72 is displayed in the second display mode in accordance with the scrolling of the index section 71 (step S35).

[0032] Here, the second display mode refers to a display mode in which the size of each music title column (rectangular list box) displayed in the list section 72 and the size of the text (list text) displayed in each music title column are not displayed uniformly. Specifically, the size of the music title column (rectangular list box) and the size of the text (list text) displayed in the music title column in the vertical center of the screen are displayed larger than those in the first display mode, and the size of the music title column (rectangular list box) and the size of the text (list text) displayed in the music title column are displayed gradually smaller from the center in the vertical direction, thereby improving the visibility of the central part of the screen. That is, in the second display mode, the size of the music title column and the size of the text displayed in the music title column in the central part are displayed largest.

[0033] In the second display mode of the present embodiment, the visibility of the central part of the screen in the vertical direction is also improved with regard to the brightness of the screen. That is, the central part of the screen in the vertical direction is displayed bright, while the brightness of the screen gradually decreases from the central part of the screen in the vertical direction.

[0034] Fig. 7 shows the display mode of the content list 7 when the scroll speed of the upward scroll operation on the index portion 71 is equal to or greater than a threshold. As shown in Fig. 7, the list portion 72 is scrolled upward while being displayed in the second display mode. As shown in Figs. 6 and 7, the second display mode displays a larger number of music content titles in the list portion 72 than the first display mode. In other words, the second display mode is a display mode that can display a larger number of music titles on one screen while making the titles in the central portion stand out.

[0035] Next, the list section scroll display process will be described in detail with reference to FIG.

[0036] The content reproduction device 1 determines whether or not the scroll speed of the up / down scroll operation on the list section 72 is less than a threshold value (step S51).

[0037] If the scrolling speed is less than the threshold (step S51: YES), the list portion 72 is displayed in the first display mode in accordance with the scrolling operation (step S52), and the index portion 71 is scrolled in accordance with the scrolling display of the list portion 72 (step S53). Fig. 8 shows the display mode of the content list 7 when the scrolling speed of the downward scrolling operation on the list portion 72 is less than the threshold. As shown in Fig. 8, the list portion 72 is scrolled downward while being displayed in the first display mode.

[0038] On the other hand, if the scrolling speed is equal to or greater than the threshold (step S51: NO), the list portion 72 is displayed in the second display mode in accordance with the scrolling operation (step S54), and the index portion 71 is scrolled in accordance with the scrolling display of the index portion 71 (step S55). Fig. 9 shows the display mode of the content list 7 when the scrolling speed of the upward scrolling operation on the list portion 72 is equal to or greater than the threshold. As shown in Fig. 9, the list portion 72 is scrolled upward while being displayed in the second display mode.

[0039] As described above, according to this embodiment, when the speed of the scrolling operation on the index section 71 or the list section 72 of the content list 7 is below a threshold, the content list 7 is displayed in a first display mode in which the size of each list button and the size of each list word displayed in the list section 72 are all the same; when the speed of the scrolling operation on the index section 71 or the list section 72 of the content list 7 is above a threshold, the size of the list buttons and the size of the list words located in the center of the list section 72 are displayed larger than in the first display mode, and the size of the list buttons and the size of the list words are displayed gradually smaller as they move up and down from the center, making it easy to find the desired title from the scrolling-displayed content list 7, regardless of the scrolling speed.

[0040] In the above embodiment, the display control related to the scroll display has been described using the content playback device 1 that displays the content list 7 on the display unit 2 as an example, but the display control related to the scroll display of the present invention is not limited to this. That is, the display control related to the scroll display of the present invention can be applied to a device, method, and program that displays predetermined information (information that can be distinguished from other information, hereinafter referred to as identification information) in a list and scrolls the list by a scroll operation, and can control the display mode of the identification information according to the speed of the scroll operation.

[0041] Specifically, when the scrolling speed is slow, the list is displayed and scrolled with the identification information notation and notation field all of the same size, allowing the user to easily find the desired identification information. On the other hand, when the scrolling speed is fast, the identification information notation and notation field in the center is displayed large to make it stand out, while the identification information notation and notation field at the top and bottom are displayed small, allowing the user to easily find the desired identification information even though more identification information is scrolled on one screen.

[0042] The above describes the embodiments of the present invention, but the present invention is not limited to the above-described embodiments, and various modifications and changes can be made to the embodiments of the present invention without departing from the gist of the present invention, and such modifications and changes are also included in the technical scope of the present invention. [Explanation of symbols]

[0043] 1 Content playback device 2 Display section 3 Operation position detection unit 4 Content playback section 5 speakers 6 Control Unit 7 Content List 61 Operation content judgment section 62 Scroll speed detector 63 Display control unit 64 Content playback control unit 71 Index section 72 List Section

Claims

[Claim 1] Accepting means for accepting a scrolling operation; a display control means for selecting, in response to the scroll operation, a first display mode in which a plurality of selection target items are displayed, and a second display mode in which more selection target items are displayed than in the first display mode, some selection target items arranged in a central portion are displayed larger than in the first display mode, and selection target items other than the some selection target items are displayed gradually smaller in the vertical direction from the central portion, and for displaying on the display means in the selected display mode; the display control means selects the second display mode when the speed of the scrolling operation is equal to or greater than a threshold value. An information display device characterized by:

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