JP2006085210A - Content display control device, content display device, method, program and storage medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a content display control device capable of displaying, in of displaying a content on a display device to be scrollable, a scroll indicator for scroll display without needing an exclusive area on the display device. <P>SOLUTION: This device comprises a scroll display means and an indicator display means. The scroll display means scrollably displays a part of an area 31 occupied by a content to be displayed on the display device when a display area on the display device is smaller than the area 31. The indicator display means, which displays the scroll indicator showing the part to be scrolled by the scroll display means on the display device, displays the scroll indicator (a box 33b and a box 33c) in an area overlapping with a display area 33a for the content. At this time, the scroll indicator is further preferably displayed so that the content can be seen through it. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a content display control device, a content display device, a method, a program, and a recording medium. More specifically, the present invention relates to a content display control device that performs control when scrolling content, and a content display device including the device. The present invention relates to a content display control method, a content display control program, and a computer-readable recording medium on which the program is recorded.

  Conventionally, the display area on the display device of the device is smaller than the area occupied by the content to be displayed, and the content is displayed on the display device of the device while scrolling a part of the area occupied by the content to be displayed. When it is unavoidable, a scroll indicator is displayed outside the content display area, for example, at the right end or the lower end.

  However, this method requires a display area of a limited area such as a mobile phone because an area for displaying a scroll indicator is required on the display apparatus in addition to an area for displaying content. If it was difficult to display the scroll indicator. However, if the scroll indicator is not displayed, the user cannot know the scrollable range, and convenience is sacrificed.

  As described above, according to the conventional technology, in order to display the scroll indicator outside the content display area, for example, at the right end or the lower end, the scroll indicator is displayed separately from the content display area on the display device of the device. An area to display is required. However, it is difficult to display a scroll indicator if there is only a display device of a very limited area such as a mobile phone. However, if the scroll indicator is not displayed, the range in which the user can scroll is limited. It becomes impossible to know and convenience is sacrificed.

  The present invention has been made in view of the above circumstances, and when displaying content on a display device in a scrollable manner, a scroll indicator can be displayed on the display device without requiring a dedicated area. An object is to provide a content display control device, a content display device including the device, a content display control method, a content display control program, and a computer-readable recording medium on which the program is recorded.

  The present invention is constituted by the following technical means in order to solve the above-described problems.

  The first technical means is a content display control device that controls the display of content on the display device, and displays when the display area on the display device is smaller than the area occupied by the content to be displayed. Scroll display means for displaying a part of the area occupied by the content to be displayed on the display device in a scrollable manner, and indicator display means for displaying on the display device a scroll indicator indicating a portion scroll-displayed by the scroll display means. The indicator display means displays the scroll indicator in an area overlapping the content display.

  According to a second technical means, in the first technical means, the indicator display means displays the display image of the content corresponding to the overlapping area and the scroll indicator, and the content display of the overlapping area displays the scroll indicator. It has a means for synthesizing it so that it can be seen through from above.

  According to a third technical means, in the first or second technical means, the indicator display means starts the display of the scroll indicator when a scroll operation for scrolling the display of content is performed, and the predetermined display from the start. It is characterized by terminating after the elapse of time.

  A fourth technical means is a content display control device that controls the display of content on the display device, the content display virtual screen generating means for generating a display image of the content to be displayed on the virtual screen, and the user's operation. Based on the scroll instruction means for accepting and instructing scroll display of the content, and the scroll display instructed by the scroll instruction means, a region to be actually displayed on the display device is calculated from the display image on the virtual screen. A display position calculating means; a display screen acquiring means for acquiring a display image of the area calculated by the display position calculating means from a display image on the virtual screen generated by the content display virtual screen generating means; The display image of the scroll indicator showing the user A scroll indicator generating means for generating based on the area calculated by the calculating means, and a display image of the scroll indicator generated by the scroll indicator generating means superimposed on the display image acquired by the display screen acquiring means And a combining means for generating the output display image and outputting it to the display device.

  According to a fifth technical means, in the fourth technical means, the composition means composes the display of the content located in the overlapping region so that the display of the scroll indicator can be seen through when the display images are superimposed. It is characterized by that.

  According to a sixth technical means, in the fourth or fifth technical means, measurement of a predetermined time is started in response to a scroll display instruction by the scroll instruction means. Timer means for notifying a timing expiration signal, and the synthesizing means starts the synthesis when receiving a scroll display instruction by the scroll instruction means, and expires the timing notified by the timer means. It is characterized by ending when a signal is received.

  According to a seventh technical means, in any one of the first to sixth technical means, the content is data broadcasting content of digital terrestrial television broadcasting.

  An eighth technical means includes the content display control device according to any one of the first to seventh technical means, and the display device whose content display is controlled by the content display control device. It is a content display device.

  A ninth technical means is a content display control method for controlling display of content on a display device, and displays when the display area on the display device is smaller than the area occupied by the content to be displayed. A portion of the area occupied by the content to be displayed is displayed on the display device in a scrollable manner, and a scroll indicator indicating the scroll-displayed portion is displayed in an area overlapping the display of the content on the display device. It is.

  A tenth technical means is a content display control program for causing a computer to function as the content display control device in any one of the first to seventh technical means and controlling the display of content on the display device.

  The eleventh technical means is a computer-readable recording medium on which the content display control program in the tenth technical means is recorded.

  According to the present invention, when content is displayed on a display device in a scrollable manner, a scroll indicator for scroll display can be displayed on the display device without requiring a dedicated area.

  The present invention relates to a content display control device, a content display device, a content display control method, a content display control program for realizing the function of the content display control device, and a computer-readable record in which the content display control program is recorded. It is a medium.

  A content display control device according to the present invention is a device that controls content display in a display device, and controls scroll display accompanied by display of a scroll indicator. Therefore, it can be said that the content display control apparatus according to the present invention is a scroll indicator display control apparatus. The content display control apparatus according to the present invention can also be incorporated as a system LSI (Large Scale Integrated Circuit) or the like. A content display device according to the present invention is a device that includes the content display control device and a display device in which content display (including playback) is controlled by the content display control device. Although it can be applied to a general-purpose personal computer (hereinafter abbreviated as a PC) including modules such as a receiver, a content reproduction program, a video card (also referred to as a video adapter), a mobile phone or a portable information terminal ( The present invention can be applied particularly advantageously to a device having a small display screen such as a PDA). Further, in the present invention, the distribution and broadcasting form of the content are basically not questioned.

  Further, the content display control program according to the present invention is a program for causing a computer to function as the content display control device exemplified here and controlling the display of content on the display device. That is, the content display control program is incorporated in a storage memory in the content display control device and executed by being read out to a working memory, and controls a calculation device such as a CPU in the device to display the display according to the present invention. The control function is realized, and detailed description thereof is omitted. Further, the recording medium on which the program is recorded may be a recording medium that can be read by a content display control device including such an arithmetic device and a memory through a general-purpose computer as necessary. Detailed description thereof will be omitted. The content display control method according to the present invention is a method for controlling the display of content on the display device, and is a method for executing a process in the content display control device or a process procedure in the content control program. Detailed description thereof is omitted.

  The content display control apparatus according to the present invention includes, as its features, scroll display means and indicator display means described below. The scroll display means is a means for scrollably displaying a part of the area occupied by the content to be displayed on the display device when the display area on the display device is smaller than the area occupied by the content to be displayed. is there. The scroll instruction is usually input by the user, and a part of the area occupied by the content to be displayed at that time is displayed by scrolling based on the instruction. The indicator display means is means for displaying on the display device a scroll indicator that indicates a portion that is scroll-displayed by the scroll display means. The indicator display means according to the present invention is characterized in that the scroll indicator is displayed in an area overlapping the content display. If the present invention satisfies such a feature that the scroll indicator is displayed in an area overlapping the content display, various processes may be adopted as appropriate so that the content can be scrolled together with the scroll indicator display. Good.

  According to the present embodiment, when the content is scrolled and displayed on the display device, the scroll display indicator (scroll indicator) is displayed on the display device without requiring a dedicated area. It becomes possible to do.

  As another embodiment of the present invention, the indicator display means allows the display image of the content corresponding to the overlapping area and the scroll indicator to be seen through the display of the scroll indicator. It is preferable to have a means for synthesizing. In other words, the display of the scroll indicator in this form is performed after being combined with the content display image of the area overlapping the scroll indicator, so that the content display of the area overlapping the scroll indicator can be seen through the display of the scroll indicator. , Make sure that the scroll indicator does not interfere with the viewing of the content as much as possible.

  As another embodiment of the present invention, the indicator display means starts the display of the scroll indicator when a scroll operation for scrolling the display of the content is performed, and ends after a predetermined time has elapsed from the start. It is preferable to make it. That is, the scroll indicator in this mode starts display at the time of an operation for scrolling the display of the content, and ends the display after the elapse of a predetermined time, so that the scroll indicator does not disturb the visual recognition of the content as much as possible. To do.

  Hereinafter, the embodiments described above will be described in detail with reference to the drawings.

  FIG. 1 is a schematic diagram showing a configuration example of a content display apparatus according to an embodiment of the present invention. In the figure, 1 is a content display control apparatus, 2 is a display apparatus, 11 is a content display virtual screen generating means, and 12 is Scroll instruction means, 13 is a display position calculation means, 14 is a display screen acquisition means, 15 is a timer means, 16 is a scroll indicator generation means, and 17 is a synthesis means. The scroll display means and the indicator display means described above correspond to these means 11 to 17 in this configuration example. In FIG. 1, thick line arrows indicate image information transmission paths, and thin line arrows indicate control signal transmission paths.

  The content display virtual screen generation unit 11 generates a display image of the content to be displayed on the virtual screen. The display image on the virtual screen is output to the display screen acquisition unit 14. The scroll instruction unit 12 receives a user operation and instructs scroll display of content. Here, a scroll instruction control signal indicating that scrolling is performed by a user operation is output. This scroll instruction control signal is output to the display position calculating means 13, the timer means 15, and the synthesizing means 17.

  Based on the scroll display instructed by the scroll instruction unit 12, the display position calculation unit 13 calculates an area to be actually displayed on the display device 2 from the display image on the virtual screen. Here, the scroll instruction control signal output from the scroll instruction means 12 is received, the above-mentioned area is calculated, and a display area instruction control signal is output. The display area instruction control signal is output to the display screen acquisition unit 14 and the scroll indicator generation unit 16.

  The display screen acquisition unit 14 acquires the display image of the area calculated and output by the display position calculation unit 13 from the display image on the virtual screen generated and output by the content display virtual screen generation unit 11. Here, a display image of the area indicated by the display area instruction control signal is acquired, and this display image is output to the combining means 17.

  The scroll indicator generating means 16 generates a display image of the scroll indicator showing the scrolled portion to the user based on the area calculated by the display position calculating means 13. Here, in response to the display area instruction control signal output from the display position calculation means 13, a display image of the scroll indicator portion is generated. This display image is output to the combining means 17.

  The synthesizing unit 17 adds the display of the scroll indicator generated and output by the scroll indicator generating unit 16 to the display image acquired and output by the display screen acquiring unit 14 (display image that is a part of the display content of the content display virtual screen). The display images are overlapped to generate a combined display image and output to the display device 2. The display device 2 is equipped with a content display device that receives and displays a display image output from the combining unit 17. Moreover, this content display device may naturally be mounted on a device together with a device having other functions.

  2 is a diagram for explaining an example of a scroll indicator displayed in the content display device of FIG. 1, in which 21 is a display image on the virtual screen, 22 is a display image of the scroll indicator, and 23 is a scroll range. Overall, 24 is a display range, 25 is a box indicating the entire scroll range, 26 is a box indicating the display range, and 27 is a display image on the display device in which a scroll indicator is superimposed on the content.

  The scroll indicator generated by the scroll indicator generating means 16 can visually grasp the current display range with respect to the entire scroll range, for example, as shown in FIG. The positional relationship of the display range 24 with respect to the entire scroll range 23 is reduced at the same rate in the vertical direction, and drawing is performed with a box 25 indicating the entire scroll range and a box 26 indicating the display range. When the display range is changed by scrolling, the box 26 indicating the display range moves up and down in the box 25 indicating the entire scroll range.

  In the present embodiment, when there is content to be displayed with the configuration as described above, the entire display image 21 is generated on the virtual screen by the content display virtual screen generation unit 11. The display position calculation means 13 outputs a display area instruction control signal for selecting an area (corresponding to the display range 24) equal to the display area of the display device 2 from the current display position on the virtual screen. The display screen acquisition unit 14 acquires a display image (display image of the display range 24) of an area equal to the display area of the display device 2 from the current display position on the virtual screen, and outputs the display image to the synthesis unit 17.

  On the other hand, the scroll indicator generating unit 16 generates a display image 22 of the scroll indicator indicating the current display range 24 for the entire scroll range 23 and outputs it to the combining unit 17. In the synthesizing unit 17, for example, a part of the display image of the content output from the display screen acquiring unit 14 is replaced with the display image 22 of the scroll indicator output from the scroll indicator generating unit 16 and output to the display device 2. As a result, the display image 27 on the display device 2 is formed so as to cover part of the content in the part of the display screen content (for example, the right end region 27a) together with the display image of the content. The scroll indicator is displayed. This eliminates the need for a dedicated area on the display device 2 for displaying the scroll indicator. Although the display screen is substantially required to be large, the scroll indicator displayed on the display device 2 is also an instruction target in the scroll instruction means 12, that is, the box 26 indicating the display range of the scroll indicator is displayed as a pointing device. You may select and scroll by.

  In this embodiment, since the scroll indicator is displayed so as to cover part of the content, it is preferable that the scroll indicator does not hinder the visual recognition of the content as much as possible. Therefore, as another embodiment of the present invention, it is preferable that the combining unit 17 combines the display images so that the display of the content located in the overlapping region 27a can be seen through the display of the scroll indicator when the display images are overlapped. . That is, in the embodiment described here, the display of the scroll indicator is performed after being combined with the content display image of the area 27a overlapping the scroll indicator, and the content display of the area 27a overlapping the scroll indicator is displayed from above the display of the scroll indicator. Make it visible through.

  For example, the composition unit 17 converts the display image 22 of the content output from the display screen acquisition unit 14 and the display image 22 of the scroll indicator output from the scroll indicator generation unit 16 into the color elements of the corresponding pixels of the respective display images. Each time, the following calculation is performed. First, the ratio α for mixing the display images of the scroll indicator is set. α takes a value in the range of 0 ≦ α ≦ 1, but in order to obtain an effective transmission effect, it is desirable to set α near 0.5.

R = Rc × (1-α) + Rs × α
G = Gc × (1−α) + Gs × α
B = Bc × (1−α) + Bs × α

  In the above equation, the intensity of red, green, and blue for each pixel of the display image of the content output by the display screen acquisition means 14 corresponds to the display image of the Rc, Gc, Bc, and scroll indicator. The intensity of each pixel's color element, red, green, and blue is Rs, Gs, and Bs, and the intensity of each pixel's corresponding color element, red, green, and blue, R, G and B.

  The calculation of the above equation is performed for each pixel corresponding to the overlapping portion of the display image of the content output from the display screen acquisition unit 14 and the display image of the scroll indicator output from the scroll indicator generation unit 16, and is output to the display device 2. By doing so, the scroll indicator is displayed in a part of the display screen content display area, for example, at the right end so that the content display of the area overlapping the scroll indicator display can be seen through the scroll indicator display Is done. As a result, the scroll indicator does not interfere with visual recognition of the content.

  As another embodiment of the present invention, the content display control device 1 may include a timer unit 15. The timer unit 15 receives the scroll instruction control signal output from the scroll instruction unit 12, starts measuring a predetermined time, and notifies the synthesizing unit 17 of a time-out signal after the predetermined time has elapsed. The synthesizing means 17 in this embodiment starts synthesizing the display image of the scroll indicator when receiving the scroll instruction control signal output from the scroll instructing means 12, and receives the timing expiration signal output from the timer means 15. Finally, the composition of the display image of the scroll indicator is finished. In this case, it is possible to display the scroll indicator only for a fixed time after the scroll operation is performed.

  When the user performs a scrolling operation, the scroll instruction unit 12 outputs a scroll instruction control signal. The scroll instruction control signal serves as a signal for starting the synthesis of the display image of the scroll indicator for the synthesizing means 17 and as a signal for starting the measurement of the predetermined time for the timer means 15. The timer means 15 outputs a time-out signal after a predetermined time has elapsed. This expiration signal functions as a signal for the synthesis means 17 to finish the synthesis of the display image of the scroll indicator. With these series of operations, the scroll indicator is not displayed in a steady state, and the scroll indicator is displayed when the user performs a scroll operation. The scroll indicator disappears after a predetermined time, for example, 1 second. Can be.

  As described above, in the present embodiment, the display of the scroll indicator is started at the time of an operation of scrolling the display of the content, and the display is ended after a predetermined time has elapsed. When the actual display area is smaller than the display area requested by the content, a scroll bar indicating the current display position in the entire area is displayed at the right end of the screen, but the scroll display key is pressed so as not to disturb the display content. It is displayed in a transparent color for a certain short period after it is pressed and then disappears.

  Furthermore, in the content display device according to the present invention, when displaying the data broadcast content of the terrestrial digital television broadcast, a scroll indicator can be displayed to notify the user of the scrollable range. Therefore, a mobile phone having a terrestrial digital television broadcast reception function and a data broadcast presentation function will be described as an example of an apparatus to which the content display apparatus according to the present invention is applied.

  In the data broadcasting standard for terrestrial digital television broadcasting, several profiles are defined depending on devices to be mounted, and among them, a C profile is defined for portable devices such as a mobile phone. This portable device broadcast is performed using a high-compression codec such as MPEG4 (Moving Picture Experts Group 4) using one segment of the TV channel band divided into 13 segments. The receiving side mobile device is equipped with a 1 SEG demodulation LSI and the like. In the C profile, the area of the virtual screen used for data broadcast display is defined as 240 pixels in the horizontal direction × 480 pixels in the vertical direction. Compared with this, the display area of the display device of the mainstream mobile phone is small, just 240 pixels in the horizontal direction × 320 pixels in the vertical direction, but in reality, display of mobile phone icons, television screens, etc. Therefore, the area that can be used as data broadcasting content is, for example, only about 100 pixels in the vertical direction. For this reason, a scroll operation is essential to display the entire area of the virtual screen, but since both the virtual screen and the display device have 240 pixels in the horizontal direction, the scroll indicator cannot be displayed outside the content display area.

  Therefore, the content display apparatus according to the present invention can be effectively applied to terrestrial digital television broadcasts and terrestrial digital audio broadcasts, particularly 1 SEG broadcasts. For example, the content display control program according to the present invention may be stored in an apparatus having a reception function for receiving such a broadcast so as to be executable as an application such as a browser.

  For example, an area for displaying data broadcast content in a display device on a mobile phone is set to 100 pixels in the vertical direction, and a range 50 pixels higher than the area on the currently displayed virtual screen is displayed by depressing the up key. By pressing down the down key, a range 50 pixels below the currently displayed area on the virtual screen is displayed.

  First, when display of data broadcasting is started, in the initial state, a range of 100 pixels in the vertical direction from the top of the virtual screen of data broadcasting is displayed on the display device. From this state, the user presses the down key to display a further lower area. As a result, a range of 100 pixels in the vertical direction from the position of 50 pixels from the top of the virtual screen of the data broadcast is displayed on the display device, and at the right end, the content is overlapped with the content display of the data broadcast. A scroll indicator is displayed in a transparent state.

  Here, when one second has elapsed without operating the up / down direction key, the scroll indicator disappears. If the down key is pressed twice more, the range of 150 pixels from the top of the virtual screen of data broadcasting is displayed on the display device, and the content of data broadcasting is displayed at the right end. The scroll indicator is displayed in a form overlapping the display. A state of display on the display device at this time will be described with reference to FIG.

  FIG. 3 is a diagram showing an example of a display image on the display device when the scroll indicator is displayed. In the figure, 31 is a display image of a data broadcasting virtual screen, 32 is a display image of a scroll indicator, and 33 is data. It shows a display image on a display device in which a scroll indicator is superimposed on a broadcast content.

  First, the display image 32 of the scroll indicator is generated from the relationship between the virtual screen of data broadcasting and the display range. In FIG. 3, y0 to y3 represent the coordinates in the virtual screen of the data broadcast represented by the number of pixels in the vertical direction, and Y0 to Y3 represent the coordinates of the display image of the scroll indicator represented by the number of pixels in the vertical direction.

  Regarding the drawing of the scroll indicator, the following expressions (1) and (2) are satisfied. Further, since the height of the scroll indicator is equal to the display range, the relationship of the following expression (3) is established.

Y2-Y1: Y3-Y0 = y2-y1: y3-y0 (1)
Y1-Y0: Y3-Y0 = y1-y0: y3-y0 (2)
Y3-Y0 = y2-y1 (3)

  Since the size of the virtual screen is 480 pixels in the vertical direction, y0 = 0, y3 = 480, the display start position is 150 pixels from the top, y1 = 150, and the display area is 100 pixels. Therefore, y2 = y1 + 100 = 250. By substituting these values into the above equation, the above equation becomes the following equation.

Y2-Y1: Y3-Y0 = 100: 480 (1 ')
Y1-Y0: Y3-Y0 = 150: 480 (2 ')
Y3-Y0 = 100 (3 ')

Here, when the expression (3 ′) is substituted into the expressions (1 ′) and (2 ′), the following expression is obtained.
Y2-Y1: 100 = 100: 480
Y1-Y0: 100 = 150: 480

Solving these equations gives the following:
Y2-Y1 = 10000 / 480≈21 (4)
Y1-Y0 = 15000 / 480≈31 (5)

  From the formulas (3 ′), (4), and (5), when Y0 = 0 (origin), the following is obtained, so that the display image of the scroll indicator can be generated with the following size.

Y1 = 31
Y2 = 52
y3 = 100

  At this time, the number of pixels in the horizontal direction may be an appropriate value determined in advance. For example, the size of the outer box is determined to be 10 pixels, and the size of the inner box is determined to be 6 pixels with an interval of 2 pixels on the left and right. The drawing color may be an appropriate value. For example, the large box 33b serving as the background of the scroll indicator is drawn in dark gray, and the inner small box 33c is drawn in light gray.

  When the display image of the scroll indicator is completed, the virtual screen display image 33a of the data broadcast and the display image 32 (box 33b and box 33c) of the scroll indicator are combined and displayed on the display device.

  First, in the area where the display image of the scroll indicator is not displayed on the display device, that is, in the region where the display of the scroll indicator does not overlap with the content of the data broadcast, the display data of the virtual screen display image of the data broadcast is directly applied to the display device. Show it.

  On the other hand, for the area where the display of the scroll indicator overlaps the content of the data broadcast, for example, the calculation shown by the above-described R, G, B calculation formulas for each color element of each corresponding pixel of each display image I do. Here, the ratio α = 0.5 for mixing the display images of the scroll indicator. This means that the display image of the content and the display image of the scroll indicator are mixed in half. Here, the composition calculation is performed by paying attention to one pixel having an area where the scroll indicator display overlaps the content of the data broadcast. Temporarily, the color elements of the display image of the content of the data broadcasting content, red, green, and blue intensity are Rc = 60, Gc = 120, Bc = 200, and the corresponding pixel of the display image of the scroll indicator. When the intensity of the color elements, red, green, and blue are Rs = 30, Gs = 30, and Bs = 30, respectively, the color elements, red, green, and blue of the corresponding pixels of the display image that is the composite result The strengths R, G, and B can be obtained as follows.

R = 60 × 0.5 + 30 × 0.5 = 45
G = 120 × 0.5 + 30 × 0.5 = 75
B = 200 × 0.5 + 30 × 0.5 = 115

  This calculation is performed for each pixel corresponding to the overlapping portion of the display image of the data broadcast content and the display image of the scroll indicator, and is output on the display device, so that the display of the region overlapping the display of the scroll indicator is performed. The scroll indicator is displayed so that the content display can be seen through the display of the scroll indicator.

  In the present embodiment, the display synthesis method is performed by the equation as shown above. However, the same effect can be obtained by using the following equation as well. Regardless, the present invention does not depart from the present invention as long as the content display in the area overlapping the display of the scroll indicator produces an effect of being seen through the display of the scroll indicator.

R = Rc × Rs / 255
G = Gc × Gs / 255
B = Bc × Bs / 255

  In addition, a scroll indicator is displayed when the user performs a scroll operation, and if the up / down direction key operation is not performed for 1 second, the scroll indicator disappears, but this time is not 1 second. Of course, it is also possible to give an effect that the display of the scroll indicator is gradually diminished instead of disappearing suddenly after 1 second.

It is the schematic which shows the structural example of the content display apparatus which concerns on one Embodiment of this invention. It is a figure for demonstrating an example of the scroll indicator displayed in the content display apparatus of FIG. It is a figure which shows the example of the display image on a display apparatus when a scroll indicator is displayed.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Content display control apparatus, 2 ... Display apparatus, 11 ... Content display virtual screen production | generation means, 12 ... Scroll instruction means, 13 ... Display position calculation means, 14 ... Display screen acquisition means, 15 ... Timer means, 16 ... Scroll indicator Generating means, 17 ... compositing means, 21, 31 ... display image on virtual screen, 22,32 ... scroll indicator display image, 23 ... whole scroll range, 24 ... display range, 25 ... box indicating entire scroll range, 26 ... Boxes indicating the display range, 27, 33 ... display images on the display device.

Claims (11)

  A content display control device for controlling display of content on a display device, wherein a portion of a region occupied by content to be displayed is smaller when a display region on the display device is smaller than a region occupied by content to be displayed Scroll display means for displaying the image on the display device in a scrollable manner, and indicator display means for displaying on the display device a scroll indicator indicating a portion scroll-displayed by the scroll display means, the indicator display means Displays the scroll indicator in an area overlapping the display of the content.   The indicator display means includes means for synthesizing the display image of the content corresponding to the overlapping area and the scroll indicator so that the content display of the overlapping area can be seen through the display of the scroll indicator. The content display control apparatus according to claim 1, wherein:   3. The indicator display unit starts the display of the scroll indicator when a scroll operation for scrolling the display of content is performed, and ends the display after a predetermined time has elapsed from the start. The content display control device described in 1.   A content display control device for controlling display of content on a display device, content display virtual screen generation means for generating a display image of content to be displayed on a virtual screen, and a user's operation, and scrolling display of content A scroll instruction means for instructing, a display position calculation means for calculating a region to be actually displayed on the display device, of the display image on the virtual screen, based on the scroll display instructed by the scroll instruction means, Display screen acquisition means for acquiring the display image of the area calculated by the display position calculation means from the display image on the virtual screen generated by the content display virtual screen generation means, and scroll for showing the scrolled portion to the user The display image of the indicator is calculated by the display position calculation means. A display image obtained by the scroll indicator generation means and a display image obtained by the display screen acquisition means, and a display image of the scroll indicator generated by the scroll indicator generation means is superimposed on the display image obtained by the display screen acquisition means. A content display control apparatus comprising: a synthesizing unit that generates and outputs to the display apparatus.   5. The content display control according to claim 4, wherein, when the display images are superimposed, the content display control is performed so that the display of the content located in the overlapping region is seen through the display of the scroll indicator. apparatus.   The synthesizing means further comprises timer means for starting measurement of a predetermined time in response to a scroll display instruction by the scroll instruction means, and notifying the synthesizing means of an expiration signal of time keeping after the elapse of the predetermined time. 6. The synthesis is started when a scroll display instruction is received by the scroll instruction means, and is ended when a time-out signal notified by the timer means is received. The content display control device described in 1.   The content display control apparatus according to claim 1, wherein the content is data broadcasting content of digital terrestrial television broadcasting.   8. A content display device comprising: the content display control device according to claim 1; and the display device whose content display is controlled by the content display control device.   A content display control method for controlling display of content on a display device, wherein a portion of a region occupied by content to be displayed is smaller when a display region on the display device is smaller than a region occupied by content to be displayed Is displayed on the display device in a scrollable manner, and a scroll indicator indicating a portion to be scrolled is displayed in a region overlapping the display of the content on the display device.   8. A content display control program for causing a computer to function as the content display control device according to claim 1 and controlling display of content on the display device.   The computer-readable recording medium which recorded the content display control program of Claim 10.

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