JPH11272399A - Storage medium recording display data and display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To set appropriate scrolling display corresponding to a display content and to effectively display data in accordance with the setting content of informa tion for scrolling display by providing information for scrolling display in a display screen at every prescribed unit. SOLUTION: Book data is recorded in a recording medium as display data. Book data is formed of a management information area storing bibliography information such as a book title name and an author name, and page information such as the total number of pages, a page data area storing data of the respective pages 1-n being the context of a book and a scrolling route information area storing information for scrolling display and the additional information. They are stored in the recording medium as a file. The page data area is divided for respective pages 1-n and are stored. The scrolling route information area is also divided into the respective pages 1-n and they are stored.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a recording medium on which display data having scroll path information is recorded and a display device for displaying information on the recording medium.

[0002]

2. Description of the Related Art When displaying image data larger than a display screen on a screen, or when switching a display to another area not displayed on the screen when displaying a part of the image data in an enlarged manner, etc. In the direction of the area you want to make,
Normally, the user performs a scroll operation by pressing a direction key or giving an instruction with a mouse. However, this operation is very troublesome, especially for display data having complicated columns, such as newspapers, and it is difficult to understand where the display data continues when switching columns, and the scroll amount is large. So scrolling manually was very cumbersome. In this regard, Japanese Unexamined Patent Publication No.
As described in JP-A-43387, a moving route is stored in advance in the form of a sequence of coordinate values on an image for large image data that cannot be displayed on the display screen, and the display screen is automatically set according to the moving route. A display device has been disclosed which avoids troublesome scroll instructions by scrolling in a scrollable manner. In Japanese Patent Application Laid-Open No. 4-43387, scrolling is realized by moving a point on a movement route in the movement direction and sequentially outputting a fixed-size rectangular area centered on the point on the screen.

[0003]

However, in the display data, the appropriate range and resolution to be displayed vary depending on the data content to be displayed and the character size in the data, whereas Japanese Patent Application Laid-Open No. 4-43387. In the gazette, since a fixed-size area is displayed on the screen at the same magnification, in some cases, necessary information cannot be displayed on the screen, and there is a problem that it is difficult to see fine characters and image details.

In the case of an electronic book in which a novel, a manga, or the like is fetched as image data in page units and displayed on a display device, the sentences and images of each page are connected with other pages or the same page in terms of content. Therefore, it is desirable to scroll sequentially. However, there is a problem that the display is not automatically shifted to the next page after scrolling sequentially.

[0005]

According to a first aspect of the present invention, there is provided a recording medium on which display data is recorded, wherein the display data for each predetermined unit is recorded, and information for scroll display on a display screen is stored. It is characterized in that it is provided for each of the predetermined units.

[0006] With this, it is possible to set an appropriate scroll display according to the display content, and it is possible to perform an effective display according to the set content of the information for the scroll display. Further, when display data having a complicated structure such as newspaper columns is viewed on the display screen of the portable terminal, scroll display within a predetermined unit is possible, so that display can be sequentially performed without complicated scroll operation. .

According to a second aspect of the present invention, in the recording medium recording the display data according to the first aspect, the predetermined unit is a page unit.

[0008] Thus, since information for scroll display on the display screen is managed in page units, scroll display within a page becomes possible, so that sequential display can be performed without complicated scroll operations.

According to a third aspect of the present invention, there is provided a recording medium storing the display data according to the first aspect, wherein the information for scroll display is a scroll display in a different direction on a display screen. The information is characterized by including information for

[0010] Thus, even in the case of the scroll display in which the direction changes, it is possible to sequentially display the scroll display without complicated scroll operation.

According to a fourth aspect of the present invention, there is provided a recording medium storing the display data according to the first aspect, wherein the information for scroll display is the information for another scroll display. It is characterized in that information about a link to the URL is included.

[0012] This enables not only scroll display within the same display data but also scroll movement across different display data, so that there is no need for the user to particularly instruct scroll display, and a scroll instruction is not required. Can be reduced.

According to a fifth aspect of the present invention, there is provided a recording medium storing the display data according to the first aspect of the present invention, wherein information relating to scroll display speed is included.

Thus, it is possible to change the scroll speed in accordance with the number of characters, to reduce the scroll speed of an important part as data so as not to be overlooked, and to generate a display effect due to the change in the scroll speed.

According to a sixth aspect of the present invention, there is provided a recording medium recording the display data according to the first aspect, wherein the information for scroll display specifies a display area of the scroll display. It is characterized by including information.

[0016] Thus, the area to be displayed near the scroll path can be specified, so that the problem that the information to be displayed is too far from the scroll path and cannot be displayed can be avoided.

According to a seventh aspect of the present invention, there is provided a recording medium recording the display data according to the first aspect, wherein the information for the scroll display is a display area for scroll display. It is characterized in that information for designating an enlargement ratio or a reduction ratio is included.

Thus, the size of the data in the vicinity of the scroll path is changed, so that, for example, a fine character area is displayed in an enlarged manner to make it easier to see.
Or, an effective display such as scroll display while gradually expanding can be performed.

According to a eighth aspect of the present invention, in the recording medium storing the display data according to the first aspect, the information for scroll display is reproduced in synchronization with the scroll display. It is characterized in that synchronous reproduction information indicating contents is included.

Thus, an effective display such as sounding a sound effect can be performed in synchronization with the scroll display.

According to a ninth aspect of the present invention, there is provided a display device for reproducing and displaying a recording medium recording the display data according to the first to eighth aspects, wherein information for scrolling display on a display screen is provided. Scroll display is performed based on.

Thus, when scrolling according to the information for scroll display, flexible scroll processing can be performed according to the parameter information attached to the scroll path, and effective display can be performed.

A display device according to a tenth aspect of the present invention is the display device according to the ninth aspect, further comprising scroll instruction means for scroll display.

Thus, if the information for scroll display is always reproduced and displayed, once the scroll instruction means gives an instruction, the scroll is automatically performed. Therefore, the user needs to give the scroll instruction. Therefore, the trouble of scroll instruction can be avoided. On the other hand, if the information for scroll display is reproduced and displayed only while instructed by the scroll instructing means (for example, while the button is being pressed), scrolling can be performed at the user's pace, so that the scroll speed is high. It is possible to prevent the displayed data from being overlooked.

[0025]

Embodiments of the present invention will be described below in detail with reference to the drawings. First, a recording medium for recording display data will be described. In the following description, electronic book data (hereinafter referred to as “book data”) will be described as an example of display data. However, the present invention is not particularly limited to page data of an electronic book, and is stored in an image filing apparatus. The present invention can be applied to data that can be generally displayed on a display device, such as image data created by a document creating device and document data created by a document creating device.

FIG. 1 shows the overall configuration of a recording medium on which book data is recorded as display data according to the present invention. As shown in FIG. 1, the book data stores a management information area for storing bibliographic information such as a book title and an author name, page information such as the total number of pages, and data of each page which is the body of the book. And a scroll path information area for storing information for scroll display and its additional information, which are stored as files on the recording medium. In FIG. 1, the page data area is divided and stored for each page, and the scroll path information area is also divided and stored for each page. As another embodiment of FIG. 1, the page data area and the scroll path information area may be stored together as one as shown in FIG. 2, but also in this case, the data of each page is scrolled and displayed. Information may be managed for each page.

FIG. 3 shows a configuration example of the management information area in the book data. The management information area is a management information area identifier indicating that it is a management information area, a data size of this area, a bibliographic information area for storing a book title name, an author name, and the like, and page information for storing a total number of pages and the like. Area. The number on the right in FIG. 3 indicates the number of bytes at the time of storage.

FIG. 4 shows a configuration example of the page data area of each page. The page data area has a page data area identifier indicating that it is a page data area, a data size of this area, character data constituting page data,
Object data area described for each data element (hereinafter, referred to as an object) such as image data, audio data, and moving image data, the number of objects, and information indicating whether scroll path information is finally added to the page Consists of As shown in FIG. 14, each page is virtually provided with a coordinate system whose origin is the upper left vertex of the page, and each page is configured by arranging each object on the page space. . Data that cannot be displayed, such as audio data, is virtually placed in the entire page or in an area that is content-related.

Although the structure of the object data area differs depending on the type of data, it is basically described in the form of a data type identifier, a data size, and object data. For example, in the case of image data, as shown in FIG. 5, a data type identifier indicating image data,
The data size, the size of the image in the x and y directions, the coordinates of the starting point on the display screen, and the compression method are described, and the image data is stored according to the compression method specified in the section of the compression method.

Next, the scroll path information area of FIG. 1 will be described with reference to FIGS. FIG. 6 schematically shows scroll path information set in page data of a certain page. Depending on the book data, a plurality of contents may be written in a complicated and complicated manner as shown in FIG. 6. If the book data on a certain page is larger than the display screen, or the book data is enlarged and displayed. In such a case, it may not be possible to determine where the continuation of the document or the like is at the time of switching each row. Therefore,
A scroll path is set for each object data content (contents 1 and 2 schematically shown in FIG. 6) in the page data area. Each scroll path is composed of several partial sections (corresponding to the arrows in FIG. 6). For example, in the case of a newspaper article in which several articles are written on the same page, a scroll path is set for each article, and the scroll path of each article depends on where the column switches or the direction in which the text goes. It is divided into multiple routes at places that change.
The divided route corresponds to a partial section.

FIG. 7 shows a method of storing a scroll path in the scroll path information area. As shown on the left side of FIG. 7, the scroll path information is represented by a scroll path information identifier indicating a scroll path information area, the data size of this area, the number of scroll paths, and a vector sequence for each path. Route data.
As shown on the right side of FIG. 7, each route data includes a route data identifier indicating the route data, a data size of the route data, a route name character string for identifying the route name, and a scroll partial section to be scrolled. Number and each subsection (1 to
n), and includes partial section information for each n) and link information to other routes. The link information with the other route specifies the connection with the other route in the current page or the route given to the other page. The link presence / absence information indicating whether or not the link is connected to another route, If there is a path to be made, it is composed of a link path page number indicating the page to which the path is assigned, and a link path number indicating the number of the path of the page.

Here, in the path name character string, a title or the like indicating the contents of the text in the area provided with the scroll path is recorded. For example, when the content of the page data is a newspaper article and a scroll path is provided for each article, the title of the article is recorded in this area.

The partial section information is stored in the order to be scrolled, and is recorded for each partial section in the recording format shown in FIG. The partial section information includes an identifier indicating a partial section, a data size, start point coordinates and end point coordinates for describing data of the partial section by a vector,
The scroll speed at the start and end points, the magnification at the start and end points (including the case of shrinking), and the
It comprises a frame size of an area to be displayed on the display device and a synchronous reproduction information area for storing information to be reproduced in synchronization with the start of scrolling of the partial section. As the scroll speed, a distance in a coordinate system provided on the page, which moves per scroll, is recorded.

The display frame size at the start point and the end point also specifies the size on the coordinates provided on the page. The parameter of the frame size is provided for the following reason.
When scrolling according to the scroll route set on the page, an area near the route is read from the page data, enlarged at a specified enlargement ratio, and displayed on the display device.
At this time, there are cases where the contents that need to be displayed cannot be displayed depending on the range from the route to the vicinity. For example, as shown in FIG. 15, when the area of the size of the frame (a) is near, the upper and lower characters are not displayed on the display screen, and the text cannot be read. Therefore, it is necessary to appropriately set the size so that the content to be displayed like the frame (b) is always displayed.

The synchronous reproduction information area stores the number of synchronous reproduction information and the synchronous reproduction information corresponding to the number of the synchronous reproduction information. As shown in FIG. 8, this synchronized playback information
A synchronous reproduction information identifier indicating that it is synchronous reproduction information,
It consists of the data size and the object number. Here, as the object number, the number in which the object data stored in the format shown in FIG. 4 is stored is selected and recorded. For example, when playing a sound effect in accordance with the display content of the partial section, the data of the sound effect may be registered in the page data, and the object number may be recorded in the synchronous reproduction information area.

As shown in FIG. 9, when displaying a screen using this partial section information, first, a designated starting point frame size (sx, sy) centered on starting point coordinates (sx, sy) on the page data The rectangular area of (wsx, wsy) is enlarged by an enlargement factor smag at the start point and displayed on the display means, and the display screen is scrolled at the specified scroll speed sv. At this time, if synchronous reproduction information is recorded, reproduction of the object specified here is started in synchronization with the start of scrolling. Then, the center of the rectangle to be displayed is moved from the start point to the end point while smoothly changing these three values so that the scroll speed, enlargement ratio, and frame size at the end point become the specified values. Perform scroll display. Therefore, not only the scroll path, but also the scroll speed, frame size, and enlargement ratio can be specified in advance, so that not only can scrolling be performed sequentially in accordance with the contents of the screen, but also scrolling can be performed with a variety of changes such as display while gradually expanding. Data effective for display can be embedded in book data in advance. Also, it is possible to set so that audio data suitable for the display screen during the scrolling process is flown or that the reproduction of the moving image data can be started in accordance with the scrolling. When the scroll route information is stored in the format of FIG. 2,
Since it is not known which page the partial section information of each route belongs to, it is sufficient to provide a page number area for storing the page number where the partial section exists in the partial section information of FIG.

Next, an embodiment of the display device will be described. In the following description, a case of a display device that reads and displays display data of an electronic book stored in the above-described recording medium will be described. However, the present invention is not particularly limited to a display device of an electronic book. The present invention can be applied to a display device that displays display data to which scroll path information as described above is attached.

FIG. 10 shows an example of a block diagram of a display device according to the present invention. In the figure, 1 is a CPU as a control means, 2 is a ROM for storing a control program of the apparatus,
Reference numeral 3 denotes a RAM used to store a program, a work area of the program, and book data such as page data and bibliographic information, and 4 denotes an input means such as a disk drive or a communication line for reading book data recorded on a recording medium. 5 is a display means for displaying book data, 6
Is audio output means for outputting audio data of book data recorded on the recording medium, 7 is a page turning instruction means constituted by a button or the like which enables a user to instruct a page to be displayed, 8 is Display mode switching instructing means configured by a button or the like that can be instructed by a user to switch between a normal display mode and a scroll display mode,
Reference numeral 9 denotes a scroll instructing unit that allows a user to instruct scrolling of a display screen constituted by buttons and the like, and 10 denotes a CPU bus that connects device components. CPU1 is a ROM
According to the control program stored in the control unit 2, various processes are performed in accordance with a user instruction from the page turning instruction unit 7, the display mode switching instruction unit 8, and the scroll instruction unit 9.
The display means 5 includes a display control means 51 for controlling the content displayed on the display screen, and a display screen 52 composed of a display or the like.

FIG. 11 shows an example of the appearance of a display device for an electronic book according to the present invention. In FIG. 11, a transparent resistive pressure-sensitive tablet is stuck on the surface of a display screen 52, this tablet is used as a display mode switching instructing means 8, and a speaker that outputs audio data in book data is used as an audio output means 6, Buttons provided on the display device main body are used as page turning instruction means 7 and scroll instruction means 9 provided for the user to instruct the display device to turn pages. The page turning direction or scroll direction is determined according to the direction in which this button is pressed. In addition, 12 is a recording medium insertion slot for inserting a recording medium on which book data is recorded,
Reference numeral 13 denotes a pen for switching display modes and performing various inputs through the tablet 11.

Next, a description will be given of a method of processing the display of book data on the display device. In this display device, a page turning instruction means 7 is used as a method of reproducing page data.
The page data is automatically updated or in accordance with the user's instruction based on the normal display mode in which the page to be displayed is sequentially updated each time a page turn is instructed, and the scroll path information added to the book data. There are two modes of a scroll display mode in which the screen is scrolled while changing the enlargement ratio of the section as necessary. When the power of the main body is turned on, the reproduction mode is set to the normal display mode, and switching to another mode is performed by the user instructing the display mode switching instructing means 8 during the page data display. Hereinafter, these modes will be described.

First, the normal display mode will be described with reference to the flowchart of FIG. First, a page to be displayed is set to a predetermined page (step S100). When the power is turned on, the first page or the page opened at the time of the previous reading is set to the current page, and when the mode is shifted from the scroll display mode, the currently displayed page is set.
Then, page data of the set page is read, and all objects in the page are output (step S101). When the output of all the objects constituting the page being displayed is completed, it is checked in step S102 whether or not page turning has been instructed through the page turning instructing means 7. If page turning has been instructed,
In step S103, the page number to be displayed is changed, and the process proceeds to step S101 to perform a reproduction process of the page. If the page turning is not instructed, it is checked whether or not the user has requested to switch the display mode through the display mode switching means 8. If the switching of the display mode is requested, the display shifts to the scroll display mode. I do.
If the switching of the display mode is not requested, it is checked whether or not the user is requested to end the display processing of the page data (step S105). If it is requested to end the display processing of the page data, the display processing is ended. On the other hand, if the request to end the page data display processing has not been made, the process returns to step S102, and this processing is repeated until the user makes a request regarding any of steps S102 to S105.

FIG. 1 shows the scroll display mode.
This will be described with reference to the flowchart of FIG. When the mode shifts to the scroll display mode from another mode, first, in step S200
Reads the scroll route information given to the currently displayed page and gives the user a list of the route name character strings shown in FIG. 7 included in that page on the display screen, etc. The scroll route is selected (step S201). At this time, the user is made to select an automatic scroll mode for automatically scrolling or a semi-automatic scroll mode for scrolling only when instructed by the scroll instructing means 9. In the automatic scroll mode, once an instruction is given by the scroll instruction means 9, scroll path information is sequentially read and scroll display is automatically performed. Scroll display is performed only while the button is pressed). Since the selected scroll path is composed of a plurality of pieces of partial section information as described above, step S20 described later is performed for each partial section.
The processing from step 3 to step S210 is sequentially performed, and when all the processing for each partial section is performed, the processing shifts from step S202 to step S211. In step S211, if a link to another route has not been set, the mode shifts to a normal display mode. On the other hand, if a link to another route has been set, the route linked in step S212. If the page is different from the currently displayed page, the page data is read (step S213), and the process proceeds to step S202 to perform scroll display according to the linked scroll path information. To start.

Processing for each partial section (steps S203 to S203)
In S210), as shown in FIG. 9, sample points are provided on a line segment from the start point coordinates to the end point coordinates in the partial section information, and while moving the sample points, a rectangular area to be displayed on the screen is calculated and scrolled. Perform display processing. First, in step S203, when synchronous reproduction information is attached to a partial section, reproduction processing of the object recorded here is performed. In this example, after the reproduction process is completed in step S203, the process proceeds to step S204 and the subsequent processes. However, in the case of the reproduction process of data such as audio data or video data that cannot be instantaneously completed, step S204 The processing may be divided into small steps during the loop processing from step S205 to step S210, or may be performed in parallel with the processing from step S205 to step S210. Next, the coordinates (x,
y) is set as the start point (sx, sy) of the partial section (step S204), and in step S205, it is determined whether the sample point has reached the end point (ey, ey),
If the sample point has reached the end point, the process returns to step S202 and proceeds to the processing of the next partial section. On the other hand, if the sample point has not reached the end point, the process proceeds to step S206, where a rectangular area to be displayed on the display screen and an enlargement ratio are calculated, and an image to be displayed on the display screen is created. The size and magnification of the rectangular area at this time are obtained as follows. The ratio of the distance between the current sample point and the start point to the distance between the current sample point and the end point is s: (1−s) (where 0 ≦ s ≦ 1).
Then, the size of the rectangular area to be displayed on the screen (wx, w
y), the magnification mag is

[0044]

(Equation 1)

Is obtained by Where wsx, wsy
Is the rectangular area size at the starting point, wex and wey are the rectangular area sizes at the ending point, smag and emag are the starting point,
The magnification at the end point. Then, a rectangular area (x−wx /
2, y-wy / 2)-(x + wx / 2, y + wy / 2)
Is extracted from the page data as image data, and is enlarged by the enlargement ratio mag. At this time, if the image after the enlargement exceeds the pixel size of the display screen, the enlargement factor is lowered so that the image size is adjusted so as not to exceed the pixel size of the display screen.
The enlarged image generated in this way is displayed on the display screen (step S207). Then, it is determined whether the current mode is the automatic scroll mode (step S2).
08), if in the semi-automatic scroll mode, step S
At 209, the process stands by until a scroll instruction is issued through the scroll instruction means 9. Here, in the case of the automatic scroll mode or when the user gives a scroll instruction,
The sample point is moved (Step S210). The movement amount is calculated as follows. First, the scroll speed v at the sample point is calculated as the scroll speed sv, e at the start point and end point.
From v, v = (1−s) × sv + s × ev

[0046]

(Equation 2)

Is the movement amount. Then, the next sample point is set as coordinates (x + Δx, y + Δy), and step S205 is performed.
Returns to step S2 until the sample point reaches the end point.
The processing from S06 to S210 is repeated. If the backward scrolling is also enabled in the semi-automatic scroll mode, when the backward scrolling is designated, step S
At 210, (x−Δx, y−Δy) may be calculated as the next sample point and scroll processing may be performed. If the scroll path information is stored in the format shown in FIG. 2, in step S200, after reading all the scroll path information, the path information assigned to the currently displayed page is extracted from the information. In step S201, the user selects a route to be scroll-displayed. The processing after step S202 is the same as that described above, and a description thereof will be omitted.

As described above, by automatically scrolling, it is possible to save the trouble of instructing scrolling even on a page having complicated columns, and to change the scroll speed, enlargement ratio, and display range. By starting reproduction of audio or video in synchronization with scrolling, an effective display is also possible. On the other hand, when scrolling is performed only when the user instructs scrolling, scrolling can be performed in accordance with the reading speed of the user, and scrolling can be performed simply by pressing scrolling instruction means constituted by buttons or the like. It does not take much time.

[0049]

According to the present invention, information for scroll display is added for each predetermined unit, and the frame size, enlargement ratio, and scroll speed of the display area can be set for each partial section of the scroll path. , The information you need when scrolling is too far away from the route,
The problem that it is difficult to see fine characters can be solved. Also, by changing the frame size, enlargement ratio, and scroll speed, a variety of scrolling can be performed, and the playback of audio data, video data, etc. can be started in synchronization with the scrolling. Effective production is also possible.

[Brief description of the drawings]

FIG. 1 is a diagram showing an overall configuration of a recording medium on which book data is recorded as display data according to an embodiment of the present invention.

FIG. 2 is a diagram showing an overall configuration of a recording medium on which book data is recorded as display data according to another embodiment of the present invention.

FIG. 3 is a diagram illustrating a configuration example of a management information area of book data.

FIG. 4 is a diagram illustrating a configuration example of a page data area of book data.

FIG. 5 is a diagram illustrating an example of image data among objects stored in a page data area.

FIG. 6 is a diagram schematically illustrating a scroll path set in page data.

FIG. 7 is a diagram illustrating an example of data in a scroll path information area.

FIG. 8 is a diagram showing partial section information stored in a scroll path information area.

FIG. 9 is a diagram for explaining the relationship between values recorded in the partial section information of FIG. 9 and how to scroll.

FIG. 10 is a block diagram illustrating an embodiment of a display device according to the present invention.

FIG. 11 is a diagram showing an overview of a portable display device according to the present invention.

FIG. 12 is a flowchart showing a processing procedure in a normal display mode of the display device according to the present invention.

FIG. 13 is a flowchart showing a processing procedure in a scroll display mode of the display device according to the present invention.

FIG. 14 is a schematic diagram showing that each page is configured by arranging a plurality of objects.

FIG. 15 is a diagram illustrating a display frame recorded in partial section information.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 CPU 2 ROM 3 RAM 4 Input means 5 Display means 6 Audio output means 7 Page turning instruction means 8 Display mode switching instruction means 9 Scroll instruction means 10 CPU bus

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Keisuke Iwasaki 22-22, Nagaikecho, Abeno-ku, Osaka-shi, Osaka Inside (72) Inventor Yoshihiro Kitamura 22-22, Nagaikecho, Abeno-ku, Osaka-shi, Osaka Inside the corporation

Claims (10)

[Claims] 1. A recording medium recording display data for each predetermined unit, characterized by having information for scrolling display on a display screen for each predetermined unit. . 2. The recording medium according to claim 1, wherein the predetermined unit is a page unit. 3. The recording medium according to claim 1, wherein the information for scroll display includes information for scroll display in different directions on a display screen. 4. The recording medium according to claim 1, wherein the information for scroll display includes information on a link to information for another scroll display. 5. The recording medium according to claim 1, wherein the information for scroll display includes information on a speed of scroll display. 6. The recording medium according to claim 1, wherein the information for scroll display includes information for designating a display area of the scroll display. 7. The display data according to claim 1, wherein the information for scroll display includes information for designating an enlargement ratio or a reduction ratio of a display area at the time of scroll display. recoding media. 8. The recording medium according to claim 1, wherein the information for scroll display includes synchronous reproduction information for instructing contents to be reproduced in synchronization with the scroll display. . 9. A display device for reproducing and displaying a recording medium on which the display data according to claim 1 is recorded, wherein the display device performs scroll display based on information for scroll display on a display screen. A display device characterized by the above-mentioned. 10. The display device according to claim 9, further comprising scroll instruction means for scroll display.