JP6520674B2 - Display system, display terminal, display method, and display program - Google Patents

Description

  The present disclosure relates to a method of displaying content, and more particularly, to a method of displaying content in an appropriate character size.

  With the spread of display terminals such as smart phones and PCs (Personal Computers), there is an increasing opportunity for users to view contents such as Web pages on the display terminals. The screen size and resolution of the display terminal vary depending on the type of display terminal. Therefore, the display mode of the content also differs depending on the type of display terminal. In recent years, techniques have been developed to display content in an appropriate size.

  For example, Japanese Patent Application Laid-Open No. 2015-114935 (Patent Document 1) discloses an information display terminal that can improve the visibility of content without increasing the user's work load. Japanese Patent Application Laid-Open No. 2010-097291 (Patent Document 2) discloses an information transmission apparatus that "displays image data on the screen with the layout and size to be displayed without performing enlargement display or reduction display on the terminal device side". It is disclosed. JP 2012-63880 A (Patent Document 3) discloses a scroll control device that “adjusts the amount of scroll to be performed according to the size of characters, images, etc. displayed on the screen”. Unexamined-Japanese-Patent No. 2013-232225 (patent document 4) is disclosing the content delivery apparatus "controls the behavior of an advertisement at the appropriate timing based on the visibility from a user."

JP 2015-114935 A Unexamined-Japanese-Patent No. 2010-097291 JP 2012-63880 A JP, 2013-232225, A

  When the user of the display terminal can view the content, the user browses the content while scrolling the content in one direction. When the display size of the content is small, the user of the display terminal browses the content while scrolling so as to scan the content after enlarging the display size of the content. As described above, the scroll direction of the content can be an index indicating whether the display size of the content is appropriate. Therefore, a display terminal capable of estimating an appropriate display size of content from the scroll direction of the content is desired. The techniques disclosed in Patent Documents 1 to 4 do not estimate the display size of the content according to the scroll direction of the content.

  The present disclosure has been made to solve the problems as described above, and an object in one aspect is to provide a display terminal capable of estimating an appropriate display size of content from the scroll direction of the content. It is. An object in another aspect is to provide a display system capable of estimating an appropriate display size of content from the scroll direction of the content. An object in yet another aspect is to provide a display method capable of estimating an appropriate display size of content from the scroll direction of the content. An object in yet another aspect is to provide a display program capable of estimating an appropriate display size of content from the scroll direction of the content.

  According to an aspect, the display terminal displays a display unit capable of displaying content including characters, a scroll operation for scrolling the display of the content displayed on the display unit, and a character size of the content And a detection unit for detecting a scroll direction of the content displayed on the display unit, and the detection unit detects the scroll direction of the content during a predetermined time. A history management unit for sequentially writing in the history information the scroll direction in one direction or more and the character size of the content at the time of detection of the scroll direction, and the scroll direction in one direction determined in advance from the history information The first calculation method determined in advance from the plurality of character sizes is acquired. The first calculation unit for calculating the minimum character size at the time of content display according to the above, and each of the character sizes associated with the scroll direction in a plurality of directions are acquired from the history information. And a second calculation unit for calculating the maximum character size at the time of content display according to the second calculation method defined. The display unit displays the characters of the new content at the minimum character size or more and the maximum character size or less when displaying new content including characters.

  Preferably, when the new content includes an automatic line feed symbol, the display unit displays the new content in the maximum character size.

  Preferably, the character size of the content written in the history information by the history management unit is acquired from the content displayed in a predetermined display area in the display unit.

  Preferably, the new content is document data composed of a plurality of pages. The change of the display size of the new content by the display control unit is executed each time the page to be displayed of the new content changes.

Preferably, the first calculation method is the same as the second calculation method.
According to another aspect, the display system includes a display unit capable of displaying content including characters, a scroll operation for scrolling a display of the content displayed on the display unit, and characters of the content. A reception unit capable of receiving an operation for changing the size, a detection unit for detecting the scroll direction of the content displayed on the display unit, and detection by the detection unit for a predetermined time period A history management unit for sequentially writing in the history information the scroll direction in one direction or more and the character size of the content at the time of detection of the scroll direction, and scroll in one direction determined in advance from the history information Each of the character sizes associated with the direction is acquired, and a first calculation predetermined from the plurality of character sizes The first calculation unit for calculating the minimum character size at the time of content display according to the method and each of the character sizes associated with the scroll directions in the plurality of directions are acquired from the history information and the plurality of character sizes And a second calculation unit for calculating the maximum character size at the time of content display according to a predetermined second calculation method. When displaying new content including characters on the display unit, the display unit displays the characters of the new content at the minimum character size and the maximum character size.

  According to still another aspect, a display method for displaying content including characters on a display terminal is provided. The display terminal can receive a scroll operation for scrolling the display of the content displayed on the display terminal and an operation for changing the character size of the content. The display method includes a step of detecting the scroll direction of the content displayed on the display terminal, a scroll direction detected in one or more of the predetermined steps, and a detection of the scroll direction. The step of sequentially writing the character size of the content at the time in the history information, and each of the character sizes associated with the predetermined unidirectional scroll direction is acquired from the history information, and the plurality of characters Calculating the minimum character size at the time of content display according to a first calculation method determined in advance from the size, and acquiring each of the character sizes associated with the scroll directions in a plurality of directions from the history information; Maximum character at the time of content display according to the second calculation method determined in advance from the character size of Comprising a step of calculating the size, the new content containing characters when displayed on the display terminal, and displaying the character of the new content below the minimum character size or more and the maximum character size.

  According to still another aspect, a display program for displaying content including characters on a display terminal is provided. The display terminal can receive a scroll operation for scrolling the display of the content displayed on the display terminal and an operation for changing the character size of the content. The display program includes a step of detecting a scroll direction of the content displayed on the display terminal on the display terminal, and a scroll direction of one or more detected in the step of detecting the predetermined time. In the step of sequentially writing the character size of the content at the time of detection of the scroll direction in the history information, and from the history information, acquire each of the character sizes associated with the predetermined one-direction scroll direction Calculating a minimum character size at the time of content display according to a predetermined first calculation method from the plurality of character sizes, and each of the character sizes associated with the scroll direction in a plurality of directions from the history information. Is acquired from the plurality of character sizes according to a predetermined second calculation method. Calculating the maximum character size at the time of displaying the text, and displaying the new text including the text at the minimum text size and the maximum text size when displaying new content including the text on the display terminal And execute the following steps.

  In one aspect, the appropriate display size of the content can be estimated from the scroll direction of the content.

  The above and other objects, features, aspects and advantages of the present invention will become apparent from the following detailed description of the present invention taken in conjunction with the accompanying drawings.

It is a figure which shows a mode that content is scrolled in one direction. It is a figure which shows a mode that it scrolls so that content may be scanned. It is a figure which shows the detection timing of a scroll direction in time series. It is a figure which shows the historical information of scroll operation. It is a figure which shows an example of a function structure of the display terminal according to 1st Embodiment. It is a flowchart showing the update process of the log | history information in 1st Embodiment. It is a flowchart showing the display process of the content in 1st Embodiment. It is a block diagram showing the main hardware constitutions of the display terminal according to a 1st embodiment. It is a block diagram which shows the main hardware constitutions of the display system according to 2nd Embodiment. It is a sequence diagram which shows the flow of the data between a display terminal and a server. It is a figure which shows the display terminal which is displaying the content containing an automatic line feed mark. It is a figure which shows the content of the log information in 3rd Embodiment. It is a flow chart showing update processing of history information in a 3rd embodiment. It is a flowchart showing the display process of the content in 3rd Embodiment.

  Hereinafter, embodiments according to the present invention will be described with reference to the drawings. In the following description, the same parts and components are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description of these will not be repeated. In addition, each embodiment and each modification which are explained below may be combined suitably suitably.

First Embodiment
[Scroll operation]
The scroll operation on the content will be described with reference to FIGS. 1 and 2. FIG. 1 is a diagram showing how content is scrolled in one direction. FIG. 2 is a diagram showing scrolling of content.

  The display terminal 100 as a smart phone is shown by FIG. Hereinafter, although the display terminal 100 as a smartphone will be described, the display terminal 100 may be a tablet terminal, a PC, a digital camera, an electronic dictionary, a PDA (Personal Digital Assistant), a game machine, or the like.

  As shown in FIG. 1, the display terminal 100 includes a display unit 107. For example, content 30 is displayed on display unit 107. The content 30 is document data that can be displayed on the display terminal 100. The document data may include, for example, a web page and an e-mail.

  As shown in FIG. 1, when the content 30 can not be displayed on the display unit 107, the display terminal 100 displays only a part of the content 30 on the display unit 107. In the example of FIG. 1, the content 30 is accommodated in the left and right direction of the display unit 107 but is not accommodated in the up and down direction. In this case, when the user can view the content 30, the user checks the content 30 while scrolling the content 30 in one direction (that is, in the vertical direction).

  As shown in FIG. 2, when the content 30 is not displayed at a visible size, the user enlarges the content 30 and scrolls to scan the content 30. More specifically, after confirming the content of the upper left portion of the content 30, the user scrolls the content 30 rightward by sliding the finger from the right to the left on the display unit 107. Thus, the content of the upper right portion of the content 30 is displayed on the display unit 107. After the user confirms the content of the upper right portion of the content 30, the user slides the finger from the lower left to the upper right on the display unit 107 to scroll the content 30 in the lower left direction. The user checks while scanning the content 30 by repeating such a scroll operation.

  As described above, when the user scrolls the content 30 in various directions, the content 30 is likely to be magnified and is likely to be displayed in the character size optimal for the user. That is, the user is highly likely to be displaying the content 30 with the maximum character size with emphasis on readability. On the other hand, as shown in FIG. 1, when the user scrolls the content 30 in one direction, the user emphasizes operability and displays the content 30 in the smallest visible character size. There is a high possibility of Focusing on these points, the display terminal 100 according to the present embodiment calculates the optimal display size of the content 30 based on the direction of the scroll operation of the user.

[How to calculate text size]
The method of calculating the optimal character size of the content will be described with reference to FIGS. 3 and 4. FIG. 3 is a diagram showing the detection timing of the scroll direction in time series. FIG. 4 is a diagram showing history information 124 of the scroll operation.

  As shown in FIG. 3, the display terminal 100 detects the scroll direction of the content every time T1 (for example, one second). Details of the method of detecting the scroll direction will be described later. The display terminal 100 continues to detect the scroll direction for a time T2 (eg, 5 seconds) longer than the time T1. When the user is scrolling the content in a single direction, the scroll direction detected during time T2 is a single direction. On the other hand, when the user scrolls the content in multiple directions, the scroll direction detected during time T2 is multiple directions.

  As shown in FIG. 4, the display terminal 100 has its own terminal identification information, a scroll direction detected in one or more directions during the time T2, and the content at the time of the scroll each time the time T2 elapses. The character size is written in the history information 124. The terminal identification information written in the history information 124 is, for example, a MAC (Media Access Control) address of the display terminal 100.

  As described above, when the user scrolls the content in one direction, the user is likely to be displaying the content 30 with the smallest visible character size. Focusing on this point, the display terminal 100 calculates the minimum character size M1 at the time of content display from the character size associated with the predetermined one-direction scroll direction.

  A method of calculating the minimum character size M1 will be described. If the predetermined one direction is, for example, the vertical direction, display terminal 100 acquires, from history information 124, character sizes 32A to 32C associated with the vertical direction. The display terminal 100 calculates the minimum character size M1 of the content according to a predetermined calculation method (first calculation method) from the character sizes 32A to 32C. Preferably, the calculation method includes a calculation method in which the calculation result is equal to or less than the maximum value of the character sizes 32A to 32C and the calculation result is equal to or more than the minimum value of the character sizes 32A to 32C.

  In one aspect, the display terminal 100 calculates the average value of the character sizes 32A to 32C as the minimum character size M1. In another aspect, the display terminal 100 calculates the maximum value of the character sizes 32A to 32C as the minimum character size M1. In yet another aspect, the display terminal 100 calculates the maximum value of the character sizes 32A to 32C as the minimum character size M1.

  Next, a method of calculating the maximum character size M2 of the content to be displayed will be described. As described above, when the user scrolls the content in various directions, it is highly likely that the user is displaying the content in the maximum character size with emphasis on readability. Focusing on this point, the display terminal 100 calculates the maximum character size M2 at the time of content display from the character sizes associated with the scroll directions in a plurality of directions (for example, the vertical direction and the horizontal direction).

  In the example of FIG. 4, character sizes 33A and 33B are acquired as the character sizes associated with a plurality of directions. The display terminal 100 calculates the maximum character size M2 at the time of content display according to a predetermined calculation method (second calculation method) from the character sizes 33A and 33B. Preferably, the method of calculating the maximum character size M2 is the same as the method of calculating the minimum character size M1. In one aspect, the display terminal 100 calculates the average value of the character sizes 33A and 33B as the maximum character size M2. In another aspect, the display terminal 100 calculates the maximum value of the character sizes 33A and 33B as the maximum character size M2. In still another aspect, the display terminal 100 calculates the minimum value of the character sizes 33A and 33B as the maximum character size M2.

  When displaying new content on the display unit 107, the display terminal 100 displays the new content with the minimum character size M1 or more and the maximum character size M2 or less. Thereby, the display terminal 100 can reduce the time and effort of the slide operation on the content while securing the readability of the content. The character size of the content displayed at this time is arbitrary as long as it is the minimum character size M1 or more and the maximum character size M2 or less.

  Preferably, the display terminal 100 displays the new content in one of the minimum character size M1 and the maximum character size M2. By displaying the new content in the minimum character size M1, the time and effort of the slide operation on the content is reduced. By displaying the new content in the maximum character size M2, the content is displayed in the optimum character size for the user.

[Function Configuration of Display Terminal 100]
The functions of the display terminal 100 will be described with reference to FIG. FIG. 5 is a diagram showing an example of a functional configuration of the display terminal 100. As shown in FIG. As shown in FIG. 5, the display terminal 100 has, as functional components, a direction detection unit 152, a size detection unit 154, a history management unit 156, a first calculation unit 160, and a second calculation unit 162. And a control unit 164.

  The direction detection unit 152 detects the scroll direction for the content at each time T1 (see FIG. 3). As an example, the scroll direction is calculated based on the touch position on the display unit 107 from the touch panel 108 (see FIG. 8) described later. The touch position is represented, for example, as a coordinate value on the display unit 107. The direction detection unit 152 calculates an angle between a vector directed from the previous touch position to the current touch position and each of a plurality of predetermined directions (for example, the vertical direction and the horizontal direction), and the calculated angle Detects the direction closest to zero degrees as the scroll direction. The direction detection unit 152 outputs the detected scroll direction to the history management unit 156.

  The size detection unit 154 detects the display size of the content. For example, when the content is a web page, the display terminal 100 acquires HTML (HyperText Markup Language) that configures the web page, and searches the description defining the character size from the HTML. The size detection unit 154 detects the character size of the content by multiplying the average of the plurality of searched character sizes by the current display magnification of the content. The current display magnification of the content is acquired, for example, by calling an acquisition function of the display magnification specified in the existing API (Application Programming Interface).

  Preferably, the character size of the content is acquired from the content displayed in a predetermined area in the display unit 107. In one aspect, the predetermined display area is a central area of the display unit 107. Since the content that the user is paying attention to is likely to be displayed in the central area of the display unit 107, the size detection unit 154 can detect the character size from the content of interest. In another aspect, the predetermined display area is a predetermined display centering on the area in the display unit 107 where the enlargement operation (for example, pinch out) or the reduction operation (for example, pinch in) of the content is performed. It is in the range.

  The history management unit 156 sequentially writes, in the history information 124, the scroll direction of one or more directions detected by the direction detection unit 152 during a predetermined time and the character size of the content at the time of detection of the scroll direction. The scroll direction and the character size are written, for example, at predetermined time intervals.

  The first calculation unit 160 acquires each of the character sizes associated with the predetermined one-direction scroll direction from the history information 124, and calculates the average value of the plurality of character sizes as the minimum character size M1 (see FIG. Calculated as 4).

  The second calculation unit 162 acquires each of the character sizes associated with the scroll directions in a plurality of directions from the history information 124, and sets each average value of the character sizes as the maximum character size M2 (see FIG. 4). calculate.

  When displaying new content on the display unit 107, the display control unit 164 displays the characters of the new content with the minimum character size M1 or more and the maximum character size M2 or less. The character size of the content displayed at this time is arbitrary as long as it is the minimum character size M1 or more and the maximum character size M2 or less.

  The timing at which the display control unit 164 changes the display size of the content is not limited to the timing at which the content is displayed. For example, when the content is document data composed of a plurality of pages, the change of the display size of the content by the display control unit 164 may be performed each time the page to be displayed of the content changes. Thus, the display size of the content is changed each time the displayed page changes. As a result, the user can check the content in an optimal character size for each page.

Control Structure of Display Terminal 100
The control structure of the display terminal 100 will be described with reference to FIGS. 6 and 7. FIG. 6 is a flowchart showing an update process of the history information 124 (see FIG. 4). FIG. 7 is a flowchart showing the display process of the content. The processes in FIGS. 6 and 7 are realized by the control device 101 (see FIG. 8) of the display terminal 100 executing a program. In other aspects, some or all of the processing may be performed by circuit elements or other hardware. Preferably, the control device 101 executes the process of updating the history information 124 shown in FIG. 6 and the process of displaying content shown in FIG. 7 in parallel.

(Update process of history information 124)
Referring to FIG. 6, in step S10, control device 101 determines whether or not a predetermined time (for example, 10 seconds) has elapsed since the content is displayed on display unit 107. If the control apparatus 101 determines that the predetermined time has elapsed since the content is displayed on the display unit 107 (YES in step S10), the control apparatus 101 switches the control to step S12. If not (NO in step S10), control device 101 executes the process of step S10 again.

  In step S12, the control device 101 detects the scroll direction of the content as the direction detection unit 152 (see FIG. 5). At the same time, the control device 101 detects the character size of the content displayed on the display unit 107 as the size detection unit 154 (see FIG. 5).

  In step S20, the control device 101 determines whether or not a predetermined time has elapsed since the control was switched from step S10 to step S12. The control device 101 switches the control to step S22 when it is determined that the predetermined time has elapsed since the control was switched from step S10 to step S12 (YES in step S20). If not (NO in step S20), the control device 101 returns the control to step S12.

  In step S22, the control device 101 writes, in the history information 124 (see FIG. 4), the scroll direction of one or more directions detected during the fixed time shown in step S20 and the character size of the content.

  In step S <b> 30, the control device 101 determines whether new content is displayed on the display unit 107. If the control device 101 determines that the new content is displayed on the display unit 107 (YES in step S30), the control returns to step S10. If not (NO in step S30), the control device 101 returns the control to step S12.

(Display processing of content)
Referring to FIG. 7, in step S <b> 50, the control device 101 determines whether the content is displayed on the display unit 107. If the control device 101 determines that the content is displayed on the display unit 107 (YES in step S50), the control device 101 switches the control to step S60. If not (NO in step S50), control device 101 executes the process of step S50 again.

  In step S60, the control device 101 acquires each of the character sizes associated with the predetermined one-direction scroll direction from the history information 124 as the first calculation unit 160 (see FIG. 5). The control device 101 calculates the average value of the plurality of acquired character sizes as the minimum character size M1 (see FIG. 4).

  In step S62, the control device 101 acquires each of the character sizes associated with the scroll directions in a plurality of directions from the history information 124 as the second calculation unit 162 (see FIG. 5). The control device 101 calculates the average value of the plurality of acquired character sizes as the maximum character size M2 (see FIG. 4).

  In step S64, the control device 101 displays the characters of the content with the minimum character size M1 or more and the maximum character size M2 or less as the display control unit 164 (see FIG. 5). Preferably, the control device 101 displays the characters of the content in one of the minimum character size M1 and the maximum character size M2.

[Hardware Configuration of Display Terminal 100]
An example of the hardware configuration of the display terminal 100 will be described with reference to FIG. FIG. 8 is a block diagram showing the main hardware configuration of the display terminal 100. As shown in FIG. As shown in FIG. 8, the display terminal 100 includes a control device 101, a read only memory (ROM) 102, a random access memory (RAM) 103, a network interface 104, a display unit 107, and a touch panel 108. And a storage device 120.

  Control device 101 is configured, for example, by at least one integrated circuit. The integrated circuit is configured by, for example, at least one central processing unit (CPU), at least one application specific integrated circuit (ASIC), at least one field programmable gate array (FPGA), or a combination thereof.

  Control device 101 controls the operation of display terminal 100 by executing various programs such as display program 122 according to the present embodiment. The control device 101 reads the display program 122 from the storage device 120 to the ROM 102 based on the reception of the execution command of the display program 122. The RAM 103 functions as a working memory, and temporarily stores various data necessary for the execution of the display program 122.

  A communication device such as an antenna is connected to the network interface 104. The display terminal 100 transmits and receives data to and from another communication terminal via the communication device. Other communication terminals include, for example, a server 200 described later. Display terminal 100 may be configured to be able to download display program 122 from an external terminal such as server 200.

  The display unit 107 includes, for example, a liquid crystal display, an organic EL (Electro Luminescence) display, or another display device. The display unit 107 is superimposed on the touch panel 108. Thereby, the touch panel 108 performs a touch operation such as a scroll operation for scrolling the display of the content displayed on the display unit 107 or an operation (for example, an enlargement operation and a reduction operation) for changing the character size of the content. Can accept In addition, the reception means of the operation with respect to the content is not limited to the touch panel 108. For example, the accepting means may be a pointing device such as a mouse.

  The storage device 120 is, for example, a storage medium such as an eMMC (Embedded MultiMediaCard). As an example, storage device 120 stores display program 122 and history information 124 according to the present embodiment. The storage location of the display program 122 and the history information 124 is not limited to the storage device 120, and may be stored, for example, in a storage area (for example, a cache) of the control device 101, the ROM 102, the RAM 103, or an external storage device. .

  Note that the display program 122 may not be provided as a single program, but may be provided by being incorporated into a part of an arbitrary program. In this case, display processing according to the present embodiment is realized in cooperation with an arbitrary program. Even a program not including such a part of modules does not deviate from the spirit of the display terminal 100 according to the present embodiment. Furthermore, some or all of the functions provided by the display program 122 according to the present embodiment may be realized by dedicated hardware. Furthermore, the display terminal 100 and a server 200 described later may cooperate to realize part or all of the functions provided by the display program 122. Furthermore, the display terminal 100 may be configured in a form such as a so-called cloud service in which at least one server implements the process according to the present embodiment.

[Brief Summary]
As described above, display terminal 100 according to the present embodiment sequentially writes, in history information 124, the scroll direction in one or more directions detected during a predetermined time and the character size of the content at the time of detection of the scroll direction. . The display terminal 100 calculates the minimum character size M1 of the content from the character size associated with the predetermined single scroll direction. Further, the display terminal 100 calculates the maximum character size of the content from the character sizes associated with the scroll directions in a plurality of directions. When displaying the new content, the display terminal 100 displays the characters of the new content with the minimum character size M1 or more and the maximum character size M2 or less. As a result, the display terminal 100 can reduce the time and effort of the slide operation on the content while ensuring the visibility of the content.

Second Embodiment
[Hardware configuration of display system 500]
The display terminal 100 according to the first embodiment is configured as a single device. On the other hand, display terminal 100 according to the second embodiment is configured as display system 500.

  An example of the hardware configuration of the display system 500 will be described with reference to FIG. FIG. 9 is a block diagram showing the main hardware configuration of display system 500. Referring to FIG.

  As shown in FIG. 9, the display system 500 is configured of a display terminal 100 and a server 200. The display terminal 100 and the server 200 are connected to each other via a network. Although the example in which the display system 500 is comprised by one display terminal 100 is shown by FIG. 9, the display system 500 may be comprised by several display terminal 100. FIG. Further, although FIG. 9 shows an example in which the display system 500 is configured by one server 200, the display system 500 may be configured by a plurality of servers 200.

  In the second embodiment, the history information 124 is stored not in the storage device 120 of the display terminal 100 but in the storage device 220 of the server 200. The other hardware configuration of display terminal 100 is as described with reference to FIG. 8, and therefore the description of the hardware configuration of display terminal 100 will not be repeated.

  The server 200 includes a control device 201, a ROM 202, a RAM 203, a network interface 204, and a storage device 220.

  Control device 201 is configured, for example, by at least one integrated circuit. The integrated circuit is configured by, for example, at least one CPU, at least one ASIC, at least one FPGA, or a combination thereof.

  The control device 201 controls the operation of the server 200 by executing various programs such as the display program 222 according to the present embodiment. The control device 201 reads the display program 222 from the storage device 220 to the ROM 202 based on the reception of the execution command of the display program 222. The RAM 203 functions as a working memory, and temporarily stores various data necessary for the execution of the display program 222.

  The network interface 204 is connected with communication devices such as an antenna and a network interface card (NIC). The server 200 transmits and receives data to and from another communication terminal via the communication device. Other communication terminals include, for example, display terminal 100 and the like. The server 200 may be configured to download the display program 222 from another server.

  The storage device 220 is, for example, a storage medium such as a hard disk or an external storage device. As an example, storage device 220 stores display program 222 and the like according to the present embodiment.

  Note that the display program 222 may not be provided as a single program, but may be provided by being incorporated into a part of an arbitrary program. In this case, display processing according to the present embodiment is realized in cooperation with an arbitrary program. Even a program that does not include such a part of modules does not deviate from the spirit of the server 200 according to the present embodiment. Furthermore, some or all of the functions provided by display program 222 according to the present embodiment may be realized by dedicated hardware. Furthermore, the display terminal 100 and the server 200 may cooperate to realize part or all of the functions provided by the display program 222. Furthermore, the server 200 may be configured as a so-called cloud service in which at least one server implements the process according to the present embodiment.

[data flow]
The flow of data in the display system 500 will be described with reference to FIG. FIG. 10 is a sequence diagram showing the flow of data between the display terminal 100 and the server 200.

  In step S110, the display terminal 100 receives an instruction to display content. In step S112, the display terminal 100 displays the content.

  In step S120, the display terminal 100 detects the scroll direction of the content every time T1 (see FIG. 3). The detection of the scroll direction is detected for a time T2 (see FIG. 3) longer than the time T1. If the user is scrolling content in a single direction during time T2, then the detected scrolling direction will be a single direction. If the user is scrolling content in multiple directions during time T2, then the detected scroll direction will be multiple directions. The control device 101 transmits, to the server 200 as an operation history, the scroll direction detected in one or more directions during the time T2 and the display character size of the content at the time of detection of the scroll direction.

  In step S122, when the server 200 receives the operation history from the display terminal 100, the server 200 writes the terminal identification information of the display terminal 100 of the transmission source and the operation history in the history information 124 (see FIG. 9). By repeating the processes of steps S120 and S122, the operation history of the display terminal 100 is sequentially written in the history information 124.

  In step S130, it is assumed that the display terminal 100 receives a display instruction of new content. In step S132, the display terminal 100 transmits, to the server 200, a request for acquiring the display character size of the content.

  In step S134, based on the reception of the request from the display terminal 100, the server 200 acquires, from the history information 124, each of the character sizes associated with the predetermined one-way scroll direction. As an example, the server 200 calculates the average value of the plurality of acquired character sizes as the minimum character size M1 (see FIG. 4).

  In step S136, the server 200 acquires, from the history information 124, each of the character sizes associated with the scroll directions in a plurality of directions. As an example, the server 200 calculates the average value of the acquired plurality of character sizes as the maximum character size M2 (see FIG. 4).

  In step S138, the server 200 transmits the minimum character size M1 calculated in step S134 and the maximum character size M2 calculated in step S136 to the display terminal 100.

  In step S140, the display terminal 100 displays the content with the minimum character size M1 or more and the maximum character size M2 or less based on the reception of the minimum character size M1 and the maximum character size M2 from the server 200. The character size of the content displayed at this time is arbitrary as long as it is the minimum character size M1 or more and the maximum character size M2 or less.

[Brief Summary]
As described above, in the second embodiment, the display terminal 100 is configured as the display system 500. The operation history of the display terminal 100 is managed by the history information 124 of the server 200. Thus, the server 200 can centrally manage the operation history of various types of display terminals 100 using the history information 124.

Third Embodiment
[How to calculate text size]
The display terminal 100 according to the first embodiment estimates the optimal display character size of the content based on the scroll direction of the content. On the other hand, the display terminal 100 according to the third embodiment estimates the optimal display character size of the content based on not only the scroll direction of the content but also the automatic line feed symbol contained in the content.

  Hereinafter, the display terminal 100 according to the third embodiment will be described with reference to FIGS. 11 and 12. The hardware configuration and the functional configuration of display terminal 100 according to the third embodiment are the same as those of display terminal 100 according to the first embodiment, and therefore the description thereof will not be repeated.

  FIG. 11 shows display terminal 100 displaying content 30 including an automatic line feed symbol. When the automatic line feed symbol is included in the content 30, the display terminal 100 automatically breaks the portion of the content 30, which can not be displayed on the display unit 107, at the right end of the display unit 107. In this case, since the user does not have to scroll the content 30 in the horizontal direction, there is a high possibility that the content 30 is displayed in the maximum character size with emphasis on readability. Focusing on this point, display terminal 100 according to the present embodiment calculates the maximum character size at the time of content display using the character size of content 30 including the automatic line feed symbol.

  A more specific calculation method will be described. When the content 30 is displayed, the display terminal 100 determines whether the content 30 includes an automatic line feed symbol. If the content 30 is a web page, the display terminal 100 searches for an automatic line feed symbol from the HTML forming the web page. The automatic line feed symbol in HTML is, for example, "word-break: break-all;".

  The search result of the automatic line feed symbol is written to the history information 124. FIG. 12 shows the contents of the history information 124. As shown in FIG. As shown in FIG. 12, the display terminal 100 displays user identification information (for example, user ID (Identification)), terminal identification information of the display terminal 100, the resolution of the display unit 107 of the display terminal 100, and content display. The character size, the search result of the automatic line feed symbol, and the scroll direction of the content are written in the history information 124.

  The display terminal 100 acquires, from the history information 124, the character size 35A associated with the automatic line feed symbol “A” and the character sizes 35B and 35C associated with the scroll directions in a plurality of directions. Display terminal 100 calculates an average value of character sizes 35A to 35C as maximum character size M2, for example.

  If the new content includes an automatic line feed symbol, the display terminal 100 displays the new content in the maximum character size M2. As a result, the content is displayed in the character size optimum for the user. Also, the user does not have to perform an enlargement operation on the content.

  Preferably, display terminal 100 further calculates minimum character size M1 at the time of content display based on history information 124. More specifically, the display terminal 100 associates the character sizes 34A and 34B associated with the predetermined one-way scroll direction with the automatic line feed symbol "none" from the history information 124. get. The display terminal 100 calculates, for example, the average value of the character sizes 34A and 34B as the minimum character size M1.

  Preferably, when the new content does not include an automatic line feed symbol, the display terminal 100 displays the new content in the minimum character size M1. Thereby, the display terminal 100 can reduce the scroll amount of the content by the user while maintaining the readability of the content.

Control Structure of Display Terminal 100
The control structure of display terminal 100 according to the third embodiment will be described with reference to FIGS. 13 and 14. FIG. 13 is a flowchart showing an update process of the history information 124 (see FIG. 12) in the third embodiment. FIG. 14 is a flowchart showing the display processing of content in the third embodiment. The processes in FIGS. 6 and 7 are realized by the control device 101 (see FIG. 8) of the display terminal 100 executing a program. In other aspects, some or all of the processing may be performed by circuit elements or other hardware.

(Update process of history information 124)
The process of updating the history information 124 will be described with reference to FIG. Since the processes other than steps S14 and S22A in FIG. 13 are the same as the processes in the respective steps shown in FIG. 6, the description of those processes will not be repeated.

  In step S14, the control device 101 searches for the automatic line feed symbol from the displayed content. If the content is a web page, a description representing an automatic line feed symbol is searched from the HTML constituting the web page.

  In step S22A, the control device 101 writes in the history information 124 the scroll direction of the content, the character size of the content, and a flag indicating whether or not an automatic line feed symbol is included in the content.

(Display processing of content)
Content display processing will be described with reference to FIG. The processes other than steps S72, S74, and S76 of FIG. 14 are the same as the processes of the respective steps shown in FIG. 7, and therefore the description thereof will not be repeated.

  In step S70, the control device 101 determines whether or not the content to be displayed anew includes an automatic line feed symbol. When the control device 101 determines that the content to be displayed anew includes an automatic line feed symbol (YES in step S70), the control is switched to step S72. If not (NO in step S70), control device 101 switches control to step S74.

  In step S72, the control device 101 displays the content to be displayed anew with the maximum character size M2 (see FIG. 12). Thereby, the content is displayed in the character size optimal for the user of the display terminal 100.

  In step S74, the control device 101 displays the content to be newly displayed in the minimum character size M1 (see FIG. 12). Thereby, the display terminal 100 can reduce the scroll amount of the content by the user while maintaining the readability of the content.

  In FIG. 14, an example is described in which the control device 101 determines the display size of the content depending on whether or not the content to be newly displayed includes the automatic line feed symbol. The display size of the content may be determined based on the display setting for the browser (viewer) of. As an example, the display setting for the browser includes an automatic line feed setting in which the character string of the content is automatically folded at the right end of the display unit 107. The control device 101 displays the content in the minimum character size M1 when the automatic line feed setting is off. The control device 101 displays the content with the maximum character size M2 when the automatic line feed setting is on.

[Brief Summary]
As described above, display terminal 100 according to the present embodiment calculates the optimal display character size of content based on the scroll direction of the content and the automatic line feed symbol included in the content. Not only the scroll direction but also the automatic line feed symbol of the content is used, the display terminal 100 can calculate the character size optimum for the user more accurately.

  It should be understood that the embodiments disclosed herein are illustrative and non-restrictive in every respect. The scope of the present invention is indicated not by the above description but by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.

  30 content, 32A to 32C, 33A, 33B, 34A, 34B, 35A to 35C character size, 100 display terminal, 101, 201 control device, 102, 202 ROM, 103, 203 RAM, 104, 204 network interface, 107 display unit , 108 touch panel, 120, 220 storage device, 122, 222 display program, 124 history information, 152 direction detection unit, 154 size detection unit, 156 history management unit, 160 first calculation unit, 162 second calculation unit, 164 display control Department, 200 servers, 500 display system.

Claims (8)

A display unit capable of displaying content including characters;
A reception unit capable of receiving a scroll operation for scrolling the display of the content displayed on the display unit, and an operation for changing the character size of the content;
A detection unit for detecting a scroll direction of the content displayed on the display unit;
A history management unit for sequentially writing in the history information the scroll direction detected in one direction or more detected by the detection unit during a predetermined time, and the character size of the content at the time of detection of the scroll direction;
Each character size associated with a predetermined one-direction scroll direction is acquired from the history information, and the minimum character size at the time of content display according to a first calculation method predetermined from the plurality of character sizes A first calculation unit for calculating
In order to obtain each of the character sizes associated with the scroll directions in a plurality of directions from the history information and calculate the maximum character size at the time of content display according to a second calculation method determined in advance from the plurality of character sizes And a second calculation unit of
The display terminal displays the characters of the new content with the minimum character size and the maximum character size when displaying new content including characters.   The display terminal according to claim 1, wherein the display unit displays the new content in the maximum character size when the new content includes an automatic line feed symbol.   The display terminal according to claim 1, wherein a character size of the content written to the history information by the history management unit is acquired from the content displayed in a predetermined display area in the display unit. The new content is document data composed of a plurality of pages,
The display terminal according to any one of claims 1 to 3, wherein the change of the display size of the new content by the display unit is performed each time the display target page of the new content changes.   The display terminal according to any one of claims 1 to 4, wherein the first calculation method is the same as the second calculation method. A display unit capable of displaying content including characters;
A reception unit capable of receiving a scroll operation for scrolling the display of the content displayed on the display unit, and an operation for changing the character size of the content;
A detection unit for detecting a scroll direction of the content displayed on the display unit;
A history management unit for sequentially writing in the history information the scroll direction detected in one direction or more detected by the detection unit during a predetermined time, and the character size of the content at the time of detection of the scroll direction;
Each character size associated with a predetermined one-direction scroll direction is acquired from the history information, and the minimum character size at the time of content display according to a first calculation method predetermined from the plurality of character sizes A first calculation unit for calculating
In order to obtain each of the character sizes associated with the scroll directions in a plurality of directions from the history information and calculate the maximum character size at the time of content display according to a second calculation method determined in advance from the plurality of character sizes And a second calculation unit of
The display system displays the characters of the new content with the minimum character size and the maximum character size when displaying new content including characters on the display unit. A display method for displaying content including characters on a display terminal,
The display terminal can receive a scroll operation for scrolling the display of the content displayed on the display terminal and an operation for changing the character size of the content.
The display method is
Detecting a scroll direction of the content displayed on the display terminal;
Sequentially writing in the history information the scroll direction detected in the detecting step during a predetermined time or more and the character size of the content at the time of detection of the scroll direction;
Each character size associated with a predetermined one-direction scroll direction is acquired from the history information, and the minimum character size at the time of content display according to a first calculation method predetermined from the plurality of character sizes Calculating the
Acquiring each of the character sizes associated with the scroll directions in a plurality of directions from the history information, and calculating the maximum character size at the time of content display according to a second calculation method predetermined from the plurality of character sizes When,
And displaying the characters of the new content at the minimum character size and the maximum character size when displaying new content including characters on the display terminal. A display program for displaying content including characters on a display terminal,
The display terminal can receive a scroll operation for scrolling the display of the content displayed on the display terminal and an operation for changing the character size of the content.
The display program is configured to:
Detecting a scroll direction of the content displayed on the display terminal;
Sequentially writing in the history information the scroll direction detected in the detecting step during a predetermined time or more and the character size of the content at the time of detection of the scroll direction;
Each character size associated with a predetermined one-direction scroll direction is acquired from the history information, and the minimum character size at the time of content display according to a first calculation method predetermined from the plurality of character sizes Calculating the
Acquiring each of the character sizes associated with the scroll directions in a plurality of directions from the history information, and calculating the maximum character size at the time of content display according to a second calculation method predetermined from the plurality of character sizes When,
And displaying the characters of the new content at the minimum character size and the maximum character size when displaying new content including characters on the display terminal.

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