JP2013127679A - Information display method, information display device, information display program, and computer-readable recording medium - Google Patents

Abstract

In a touch panel capable of multi-touch, a desired position of content can be displayed by a simple scroll operation in consideration of the screen size of the display.
At least one of a scroll amount of a display content on a display screen and a scrollable range is calculated based on a multi-touch point interval and a size of the display screen.
[Selection] Figure 1

Description

  The present invention relates to a technique for scrolling display contents in accordance with a user instruction when displaying contents having a size larger than a display screen.

  For example, in a display process by a browser for browsing a Web page or an image viewer for displaying a large number of images side by side on a display screen, the size of the content to be displayed may be larger than the screen size of the display terminal. Often. In this case, for example, as shown in FIG. 9, a scroll bar area is provided on the right side of the screen for content that is long in the vertical direction of the display screen, and a scroll bar 50 and a slider 51 are displayed on the area.

  When the display terminal includes a touch panel, the user touches and presses the slider 51 with one finger, and then slides the finger up and down on the scroll bar 50. Thereby, the content hidden outside the screen can be moved into the screen.

  At this time, as shown in FIG. 9, the length of the slider 51 along the longitudinal direction of the scroll bar 50 is a length (L) corresponding to the ratio between the display screen size (L) and the content size (3L). / 3) is common.

  The position of the slider 51 on the scroll bar 50 corresponds to the display position indicating which part of the entire content is being displayed.

  However, in such a mechanism, as the content size increases, the size of the slider 51 decreases according to the ratio between the display screen size and the content size. For this reason, the display movement amount with respect to the relative finger movement amount that moves the slider 51 is increased.

  Then, as the size of the content increases, it becomes difficult to finely adjust the movement amount, so that it is likely to pass through a desired position. That is, with the conventional scroll bar, it is very difficult to move the display position to a desired position when the content size is large.

  On the other hand, Patent Document 1 listed below proposes one solution to the above problem. FIG. 10 is an explanatory diagram showing an example of the scroll operation disclosed in Patent Document 1. In FIG.

As shown in FIG. 10, the user opens two fingers in the vertical (vertical) direction using an index finger and a thumb and performs a touch operation on or near the scroll bar.

  A balloon (annotation) is displayed as two fingers are opened up and down. The magnification is displayed in the balloon, and the value increases as the two fingers are opened in the vertical direction, and conversely, the value decreases as the two fingers are closed. When two fingers are released from the touch panel, the magnification displayed at that time is determined.

  The display contents are moved according to the determined standard movement amount each time the user touches the scroll bar once with one finger. The magnification represents how many times the standard movement amount is set as the movement amount (scroll amount) when the scroll bar is touched once. That is, as described above, the scroll operation amount can be changed by performing a touch operation with two fingers opened in the vertical direction.

JP 2010-287121 (released on December 24, 2010)

  However, in the technique described in Patent Document 1, two hands are required to complete the scrolling operation, such as 1) touch operation using two fingers for setting the scroll amount and 2) scroll operation. There is a problem of need.

  Even if the magnification is changed depending on how the fingers are opened, the relationship between the magnification (the degree of opening of the fingers) and the scroll amount is not intuitively understood. Therefore, the magnification setting operation is repeated while observing the actual scroll amount. There is a need.

  Furthermore, since the method of displaying the entire image information so that the user repeatedly touches the scroll bar to send the screen one frame at a time for each touch operation is employed, a desired position is displayed. Needs to repeat the touch operation for frame advance. In addition, when the desired position approaches, the user is forced to perform a complicated operation of performing the magnification setting operation described above, performing the touch operation again, and moving the display frame by frame.

  The present invention has been made in view of the above problems, and a main object of the present invention is to provide a display control technique for easily displaying a desired position of content by a simple scroll operation.

In order to solve the above problems, an information display method according to the present invention provides
(1) a detection step for detecting that multi-touch on the display screen is an instruction to scroll the display screen;
(2) When the instruction is detected, a first relational expression is calculated by using the first relational expression of the scroll amount of the content to be displayed, the multi-touch point interval, and the display screen size. A calculation step;
(3) The method includes a scroll step of scrolling display contents in response to the multi-touch slide according to the result of the calculation.

In order to solve the above problems, an information display device according to the present invention provides:
(1) A display screen that allows touch input,
(2) a detection unit for detecting the touch input and the input position;
(3) When detecting that the multi-touch on the display screen is an instruction to scroll the display screen using the detection result of the detection unit, the scroll amount of the display target content, the point interval of the multi-touch, and Using a first relational expression with the size of the display screen, a scroll calculation unit for calculating the scroll amount;
(4) A display control unit that executes scrolling of display contents corresponding to the multi-touch slide according to the result of the calculation is provided.

  In the above configuration, multi-touch on the display screen refers to an operation of designating a plurality of positions on the display screen by touching the display screen with a plurality of fingers, for example. In addition, as long as it is an input means which can input by touching a display screen, not only a finger but a touch pen etc. may be sufficient.

  In addition, since multi-touch is not linked to an instruction to scroll the display screen depending on an activated application, processing for detecting that the multi-touch is a specific multi-touch linked to an instruction to scroll the display screen. Is executed first. For example, it is detected whether at least one point of the multi-touch is located within the display area of the scroll bar displayed on the display screen. However, the present invention is not limited to this mode, and the input mode may be set so that multi-touch is linked to an instruction to scroll the display screen.

  By the way, normal scroll responds to the slide of the slider displayed in the scroll bar, and when the slider is slid from one end to the other end of the scroll bar, the content is displayed from the beginning to the end. Yes. On the premise of this, the slider slide amount and the scroll amount of the displayed content have a certain relationship.

  For this reason, as the amount of content to be displayed is larger than the size of the display screen, the size of the slider displayed in the scroll bar decreases, and the scroll amount with respect to the slider slide amount increases. As a result, it becomes difficult to display without passing through a desired position.

  On the other hand, according to the above configuration, the first relational expression that defines the relationship between the scroll amount of the content to be displayed, the multi-touch point interval, and the size of the display screen is prepared. Using this first relational expression, the scroll amount of the content to be displayed is determined based on the multi-touch point interval and the size of the display screen.

  That is, although the size of the display screen is constant, the user can arbitrarily change the multi-touch point interval within the range of the length of the scroll bar. Therefore, the user can freely change the scroll amount according to the user's convenience by changing the multi-touch point interval.

  For example, when it is desired to increase the amount of content movement at the initial stage of scrolling, the multi-touch point interval is reduced. As the target position of the content gets closer, the multi-touch point interval is expanded. As a result, in the vicinity of the content target position, the content movement amount relative to the multi-touch movement amount can be reduced, and access to the target position is facilitated.

  As a result, the scroll amount setting and the scroll operation need only be performed in one continuous operation, and access to the target position is facilitated, so that the operability of the user regarding the scroll operation can be improved.

In order to solve the above problems, an information display method according to the present invention provides
(1) a detection step for detecting that multi-touch on the display screen is an instruction to scroll the display screen;
(2) When the above instruction is detected, the scrollable range is calculated using the second relational expression of the scrollable range of the content to be displayed and the multi-touch dot spacing and the display screen size. A second computation step for performing
(3) The method includes a scroll step of performing scrolling of display contents in response to the multi-touch slide within the scrollable range obtained by the calculation.

In order to solve the above problems, an information display device according to the present invention provides:
(1) A display screen that allows touch input,
(2) a detection unit that detects touch input and the input position;
(3) Using the detection result of the detection unit, when it is detected that multi-touch on the display screen is an instruction to scroll the display screen, the scrollable range of the content to be displayed and the multi-touch point Using a second relational expression between the interval and the size of the display screen, a scroll calculation unit for calculating the scrollable range;
(4) A display control unit that executes scrolling of display contents in response to the multi-touch slide within the scrollable range obtained by the calculation according to the result of the calculation is provided.

  According to the above configuration, the second relational expression that defines the relationship between the scrollable range of the content to be displayed, the multi-touch point interval, and the size of the display screen is prepared. Using this second relational expression, the scrollable range of the content to be displayed is determined based on the multi-touch point interval and the size of the display screen.

  That is, although the size of the display screen is constant, the user can arbitrarily change the multi-touch point interval within the range of the length of the scroll bar. Therefore, the user can freely change the scrollable range to be smaller or larger according to the user's convenience by changing the multi-touch point interval.

  For example, in the initial stage of scrolling, when it is desired to increase the content movement range, the multi-touch point interval is reduced. As the target position of the content gets closer, the multi-touch point interval is expanded. Accordingly, the scrollable range of the content can be reduced near the target position of the content, and access to the target position is facilitated.

  As a result, the setting of the scrollable range and the scrolling operation need only be one continuous operation, and access to the target position is facilitated, so that the operability for the user regarding the scrolling operation can be improved.

In the information display device according to the present invention, the scroll calculation unit that calculates the scroll amount using the first relational expression,
(1) Using the detection result of the detection unit, when it is detected that multi-touch on the display screen is an instruction to scroll the display screen, the scrollable range of the content to be displayed and the point of the multi-touch Using the second relational expression between the interval and the display screen size, the above-mentioned scrollable range is calculated,
(2) When the first relational expression is an expression for changing the scroll amount from large to small in accordance with the change in the multi-touch point interval,
(3) The second relational expression is also an expression for changing the scrollable range from large to small in accordance with the change in the multi-touch point interval.

  According to the above configuration, the second relational expression that defines the relationship between the scrollable range of the content to be displayed, the multi-touch point interval, and the size of the display screen is further prepared. In this case, the first relational expression and the second relational expression change both the scroll amount of the display target content and the scrollable range from large to small in accordance with the change of the multi-touch point interval. It is an expression.

  As a result, the user can freely reduce or increase the scrollable range in accordance with the user's convenience by changing the multi-touch point interval. Can be changed.

  Thereby, the user operability regarding the scroll operation can be further improved.

An information display device according to the present invention includes the scroll calculation unit that calculates the scroll amount using the first relational expression,
(1) When the detection unit detects the multi-touch input position,
(2) The scroll calculation unit obtains a position of two points obtained by projecting a multi-touch point interval on the scroll bar, and a projection interval between the two points.
(3) The ratio of the projection interval to the length L of the scroll bar is 1 / m (m is a real number of 1 or more), and the positions of the two points move on the scroll bar while maintaining the projection interval. When the movement amount when doing is r,
(4) The first relational expression defining the scroll amount x of the content to be displayed is x = mr.

  According to the above configuration, m decreases and approaches 1 as the user increases the multi-touch point interval. As a result, the scroll amount x of the content is also reduced. If the scroll amount x is smaller than the movement amount r of the projection interval, it becomes easy to display without passing the desired position by the user's scroll operation.

The information display device according to the present invention includes at least the scroll calculation unit that calculates the scrollable range using the second relational expression,
(1) When the detection unit detects the multi-touch input position,
(2) The scroll calculation unit obtains a position of two points obtained by projecting a multi-touch point interval on the scroll bar, and a projection interval between the two points.
(3) When the ratio of the projection interval to the length L of the scroll bar is 1 / m (m is a real number of 1 or more),
(4) The second relational expression defining the scrollable range α of the display target content is characterized in that α = mL.

  In the above configuration, for example, the length of the content to be displayed is 10 times the length L of the scroll bar (also referred to as the display screen length L), that is, the length corresponding to 10 pages, and the projection interval If L is L / 3, the content corresponding to the length of 3L, that is, the portion corresponding to 3 pages among the content of the length of 10L becomes the scrollable range.

  More specifically, if the vicinity of the fifth page is currently being displayed, the scrollable range is limited to the range of, for example, the 4th to 6th pages, and the page before the third page, or the page after the seventh page is displayed. Can not.

  As described above, since the scrollable range can be limited to a narrow range, an operation for searching for a desired position while sliding the multi-touch becomes easy.

  In addition, since the scrollable range α and the projection interval ratio 1 / m are set in an inversely proportional relationship, the user can easily grasp the scrollable range intuitively. Thereby, it is possible to provide the user with an intuitively easy-to-understand scroll operation.

  Further, when the information display device according to the present invention includes the scroll calculation unit that calculates the scroll amount using the first relational expression, the second relational expression of α = mL and the above-described x By combining with the first relational expression of = mr, the scrollable range α can be limited while reducing the scroll amount x. As a result, the user operability regarding the scroll operation can be further improved.

In the information display device according to the present invention,
(1) When the detection unit detects the multi-touch input position,
(2) The scroll calculation unit
(2-1) Find the position where the multi-touch dot spacing is projected on the scroll bar,
(2-2) The scrollable range hidden on the outer sides of one end and the other end of the display screen facing the length direction of the scroll bar is determined by the position projected on the scroll bar. To do.

  With the above configuration, the position where the multi-touch dot interval is projected on the scroll bar and the size of the scrollable range hidden behind one end of the display screen or outside the other end Can be associated.

  As a result, the scroll operation is intuitively easy for the user to understand.

In the information display device according to the present invention,
(1) When the scroll calculation unit detects a continuous change in the projection interval between the positions of the two points obtained by projecting the multi-touch point interval on the scroll bar,
(2) The display control unit maintains a state being displayed on the display screen.

  Thus, after the user performs multi-touch, for example, when the dot interval is continuously changed by sliding two fingers or the like, the scrollable range is changed without changing the state being displayed on the display screen. Can be changed.

  Therefore, even if the scrollable range changes, the display content being confirmed by the user does not change, and the user can easily find the desired position without hesitation.

An information display device according to the present invention includes the scroll calculation unit that calculates the scroll amount using the first relational expression,
(1) When the detection unit detects three points of multi-touch, and detects that two points are on the scroll bar and one point is on the content display area,
(2) The scroll calculation unit calculates the scroll amount by applying an interval between two points on the scroll bar to the first relational expression,
(3) The display control unit executes scrolling of display contents corresponding to the one point slide on the content display area according to the scroll amount obtained by the calculation.

  Thereby, more various scroll operations are possible. In the above configuration, since the two points on the scroll bar do not move, the slide range is not limited to the range from one end to the other end of the scroll bar.

The information display device according to the present invention includes at least the scroll calculation unit that calculates the scrollable range using the second relational expression,
(1) When the detection unit detects three points of multi-touch, and detects that two points are on the scroll bar and one point is on the content display area,
(2) The scroll calculation unit calculates the scrollable range by applying an interval between two points on the scroll bar to the second relational expression,
(3) The display control unit executes scrolling of display contents corresponding to the one point slide on the content display area within the scrollable range obtained by the calculation.

  Accordingly, it is possible to provide another operation method for scrolling the display contents while limiting the scrollable range.

In the information display device according to the present invention,
(1) When the detection unit detects the multi-touch input position,
(2) The scroll calculation unit obtains a position of two points obtained by projecting a multi-touch point interval on the scroll bar, and a projection interval between the two points.
(3) Furthermore, in response to the detection unit detecting that the multi-touch point has moved on the display screen and then moved away from the display screen, the scroll calculation unit performs constant inertial scrolling. It is sustained at a speed, and the constant speed is determined according to the projection interval.

  Thereby, when scrolling continues at a constant speed due to inertia, the constant speed can be changed according to the width of the multi-touch point interval.

  For example, when a multi-touch with a wide dot interval moves away from the display screen, it is possible to realize a form in which scrolling is maintained at a moderate speed. On the other hand, when the multi-touch with a narrow point interval moves away from the display screen, it is possible to realize a form in which scrolling is maintained at a rapid speed.

  As a result, user operability is further improved.

  An information display program for causing a computer to execute each step in the information display method, and an information display program for causing a computer to function as each means provided in any of the information display devices, A computer-readable recording medium storing these information display programs is also included in the scope of the present invention.

  As described above, the information display method or the information display device according to the present invention determines the scroll amount or the scrollable range according to the multi-touch point interval and the display screen size, and responds to the multi-touch slide. It is characterized in that display contents are scrolled.

  Therefore, the setting of the scroll amount or the scrollable range and the scroll operation need only be performed in one continuous operation, and access to the target position is facilitated, so that the user operability regarding the scroll operation can be improved. There is an effect.

It is explanatory drawing which shows the outline | summary of the information display method which concerns on this invention, and is explanatory drawing which shows an example of the relationship between a user's scroll operation with respect to a display screen, and a display. It is a block diagram which shows the functional structure of the information display apparatus which concerns on embodiment of this invention. It is a flowchart which shows the process sequence of the scroll operation | movement which the said information display apparatus performs. It is explanatory drawing which shows the other example of the relationship between a user's scroll operation with respect to the said display screen, and a display. It is explanatory drawing which shows the modification of the multi touch for the scroll operation based on this invention. It is explanatory drawing which shows the form which raised the freedom degree of the multi touch for scroll operation. It is explanatory drawing which shows the other example of the range which can be scrolled. It is a flowchart which shows the other process sequence of the scroll operation | movement which the said information display apparatus performs. It is explanatory drawing which shows the general example which displays a scroll bar based on the length of a display screen, and the length of the whole content of a display target. 10 is an explanatory diagram illustrating an example of a scroll operation disclosed in Patent Document 1. FIG.

(Outline of information display method)
First, an outline of an information display method according to the present invention will be described with reference to FIG. FIG. 1 is an explanatory diagram showing an outline of an information display method according to the present invention, and is an explanatory diagram showing an example of a relationship between a user's scroll operation and display on a display screen.

(1) Appearance of Information Display Device and Scroll Bar As shown in FIG. 1, a portable or notebook information display device 1 such as a PDA (Personal Digital Assistant) includes a display screen 2 having a touch panel function. Yes. The vertical width of the display screen 2 is L.

  It is assumed that the display amount of the content displayed on the display screen 2 corresponds to 10 times (10 L) the vertical width L of the display screen 2 when schematically represented. Since the display amount of the content displayed on the display screen 2 corresponds to one page, it can be said that the content is composed of 10 pages.

  As described above, when the content to be displayed has a display amount that does not fit on the display screen 2, it is necessary to scroll the display in order to display the content hidden outside the display screen 2. Therefore, on the right end of the display screen 2, for example, a belt-like scroll bar 3 extending from the upper end to the lower end of the display screen 2 and a slider 4 that moves up and down on the scroll bar 3 by a user operation are displayed.

  Similarly to the description with reference to FIG. 9, the length of the scroll bar 3 and the length of the slider 4 are the ratio between the total content display amount (10 L) and the display screen 2 size (vertical width L). Reflects. That is, in the example shown in FIG. 1, the length of the slider 4 is set to 1/10 (L / 10) of the vertical width L of the display screen 2 and displayed.

(2) Conventional scroll operation When the user wants to check the pages before and after the page being displayed, the user presses the slider 4 with a finger and moves the scroll bar 3 up and down. Such an operation is hereinafter referred to as a scroll operation. In order to move the display on the display screen 2 by one page, the user may move the slider 4 by L / 10. If the content has a display amount equivalent to 20 pages, to move the display on the display screen 2 by one page, the user moves the slider 4 by L / 20.

  Therefore, the larger the content display amount, the smaller the size of the slider 4 and the smaller the movement amount of the slider 4 for moving the display by one page. Conversely, when the amount of movement of the slider 4 is the same, the amount of scrolled pages (scroll amount) increases as the content display amount increases. For this reason, the greater the amount of content displayed, the greater the possibility of passing the desired position by the user's scroll operation, and the operability of the information display device 1 will be reduced.

(3) Example of scroll operation based on the present invention (3-1) Change of scroll amount The present invention is mainly intended to allow a user to perform an operation for changing the scroll amount as needed and a scroll operation with one hand. .

  As an example, the scroll bar 3 is touched with two fingers, and the scroll amount is defined by the interval between the two fingers. Further, the scrollable range is defined by the interval between the two fingers.

  Specifically, it is assumed that the interval between two fingers touching the scroll bar 3 is, for example, L / 3 as shown in FIG. The scroll amount at this time is reduced to 3/10 with respect to the scroll amount when the slider 4 having a length of L / 10 is used. That is, in order to move the display on the display screen 2 by one page, the user may slide two fingers on the scroll bar 3 by L / 3.

  In this way, the user is defined at an interval between two fingers by one hand of multi-touching on the scroll bar 3 with two fingers and sliding the two fingers on the scroll bar 3. Scrolling according to the scroll amount can be executed.

(3-2) Change of Scrollable Range As shown in FIG. 1B, the scrollable range also includes a vertical width L of the display screen 2 and an interval L / 3 between two fingers. The display amount is limited to 3L (3 pages). Therefore, by making it impossible to display content other than the three pages that are allowed to be displayed, the range in which the user can search for a desired position can be limited, so that the user can more easily search for the desired position.

  It should be noted that it is not essential to limit the scrollable range, and whether or not the execution is possible may be selected by the user.

  By the way, in the form in which the scrollable range is limited based on the width of the two touched fingers, the position of the two fingers placed on the scroll bar 3 is further displayed on the display screen 2 in the scrollable range. It is preferable to correspond to these positions.

  For example, as shown in FIG. 1A, the distance between the center position of two fingers multi-touched on the scroll bar 3 and the upper end of the scroll bar 3 is L / e (e is a real number greater than 1). Suppose that This 1 / e represents the ratio of the distance from the upper end of the scroll bar 3 to the center position of the two fingers and the length of the scroll bar 3. Further, (1-1 / e) represents a ratio between the distance from the lower end of the scroll bar 3 to the center position of the two fingers and the length of the scroll bar 3.

  Therefore, 1 / e is applied as a ratio between the scrollable range 3L and the center position of the display screen 2. As a result, in the example of FIG. 1, a display amount of 3 L / e exists above the center position of the display screen 2.

  Similarly, the distance (1-1 / e) L between the center position of the two fingers and the lower end of the scroll bar 3 is (1-1 / e) 3L below the center position of the display screen 2. This corresponds to the display amount.

  1 / e is set based on the center position of the two fingers multi-touched on the scroll bar 3, but is not limited thereto. 1 / e can also be set based on the position of one of the two multi-touched fingers.

  As described above, by associating the multi-touch position on the scroll bar 3 with the position of the display screen 2 in the scrollable range, it is possible to provide the user with a scroll operation intuitively easy to understand.

(Configuration of information display device)
Next, the configuration of the information display device 1 that executes the information display method described above will be described. FIG. 2 is a block diagram showing a functional configuration of the information display apparatus 1 according to the embodiment of the present invention.

  As shown in FIG. 2, the information display device 1 includes a display unit 10, a detection unit 12, a signal determination unit 13, an information processing unit 14, and a display control unit 15 as main parts. The signal determination unit 13 and the information processing unit 14 correspond to a scroll calculation unit. In addition, each part 12-15 can be comprised by CPU, for example as the control part 20. FIG.

  The display unit 10 includes the display screen 2 capable of touch input.

  The detection unit 12 detects the touch input and the input position. The input position is represented by, for example, an X coordinate and a Y coordinate of a two-dimensional orthogonal coordinate system.

  The signal determination unit 13 has a function of determining an operation instruction signal from the input signal detected by the detection unit 12. Specifically, the signal determination unit 13 determines the operation instruction assigned to the input position from the X coordinate and the Y coordinate detected by the detection unit 12. When the input position is single touch, the signal determination unit 13 determines a predetermined operation instruction assigned to the display component corresponding to the coordinates of one input point among display components such as icons displayed on the display screen 2. (recognize. When the input position is based on multi-touch, a predetermined operation instruction assigned to the display component corresponding to the coordinates of a plurality of input points detected continuously (within a predetermined time) is discriminated (recognized).

  Further, the signal determination unit 13 determines a trajectory (gesture) of one or a plurality of input points, and determines (recognizes) a predetermined operation instruction assigned to the input gesture.

  When the signal determination unit 13 detects that the multi-touch on the display screen 2 is an instruction to scroll the display screen 2 using the detection result of the detection unit 12, the information processing unit 14 displays the display target. The scroll amount is calculated using a first relational expression of the scroll amount of the content, the multi-touch point interval, and the size of the display screen 2.

  When the signal determination unit 13 detects that the multi-touch on the display screen 2 is an instruction to scroll the display screen 2 using the detection result of the detection unit 12, the information processing unit 14 Using the second relational expression of the scrollable range of the content to be displayed and the multi-touch point interval and the display screen size, the scrollable range is calculated.

  The display control unit 15 executes scrolling of display contents corresponding to the multi-touch slide according to the calculation result, or scrolls display contents corresponding to the multi-touch slide according to the calculation result. Execute within the scrollable range obtained by the above calculation.

  The information display device 1 further includes an input unit 11 and a storage unit 16.

  The input unit 11 corresponds to a touch panel provided integrally with the display unit 10.

  The storage unit 16 stores a table in which the first relational expression, the second relational expression, the display component or gesture, and the operation instruction are associated with each other, and stores various operation programs of the information display device 1. .

(Scroll operation example 1)
The scroll operation performed by the information display device 1 having the above configuration according to the information display method described above will be described in detail. FIG. 3 is a flowchart showing a processing procedure of a scroll operation executed by the information display device 1. FIG. 4 is an explanatory diagram showing another example of the relationship between the user's scroll operation and display on the display screen 2.

  In step 1 of FIG. 3 (hereinafter abbreviated as S1), the information display device 1 is turned on, and the information display device 1 is ready to perform touch detection processing. In S <b> 2, the detection unit 12 waits for a touch input on the display screen 2 via the input unit 11.

  In this state, when the display screen 2 is touched, the detection unit 12 outputs a detection signal (Yes in S2). The signal determination unit 13 determines whether the number of detection signals input from the detection unit 12 is singular or plural (S3). If the number is singular (No in S3), the touch input is single touch, so the process proceeds to S4, and the conventional single touch process is executed.

  On the other hand, when the number is plural (Yes in S3), the signal determination unit 13 calculates X coordinates and Y coordinates representing a plurality of touch positions from the plurality of input detection signals (S5). Subsequently, the signal discriminating unit 13 compares the X coordinate and Y coordinate indicating the display area of the scroll bar 13 with the X coordinate and Y coordinate obtained in S5, and even at one point of multi-touch, the signal of the scroll bar 13 is displayed. It is determined whether it is included in the display area (S6).

  If none of the multi-touch points are included in the display area of the scroll bar 13 (No in S6), the process proceeds to S7, and the signal determination unit 13 performs multi-touch unique to the activated application. It is determined whether or not to execute a specific process. If the determination result in S7 is Yes, a specific process by multi-touch is executed. On the other hand, even if none of the multi-touch points are included in the display area of the scroll bar 13, if the mode for executing the scroll process according to the present invention is set (No in S7), the process is S9. Migrate to

  The processing of S1 to S7 described above corresponds to a detection step of detecting that multi-touch on the display screen is an instruction to scroll the display screen.

  Here, as shown in FIG. 4A, it is assumed that the user touches the scroll bar 3 of the display screen 2 with two fingers at the time of S3. In this case, in S9, the information processing unit 14 calculates the distance between the two touch positions using the X coordinate and the Y coordinate representing the touch position calculated in S5. In the example of FIG. 4A, the distance between the two touch positions is calculated to be L / 3.

  Further, as S10, the information processing unit 14 may calculate where the two touch positions are located on the scroll bar 3. In S10, for example, as described with reference to FIG. 1, the distance (L / e) between the center position of the two fingers and the upper end of the scroll bar 3 is obtained. Further, in the case of explaining with reference to the example of FIG. 4A, it is calculated that the center position of two fingers is at the position of L / 2.

  Next, in S11, the information processing unit 14 calculates a scrollable range in the display target content (the display amount is 10L shown in FIG. 1B). The scrollable range is calculated using a second relational expression that will be described later with a specific example. The second relational expression is an expression that defines the relationship between the scrollable range of the content to be displayed, the multi-touch point interval, and the display screen size.

  Using the second relational expression, in the example of FIG. 4A, the scrollable range is based on the distance L / 3 between the two touch positions and the vertical width L of the display screen 2. It is calculated as 3L including the page being displayed on the display screen 2.

  Furthermore, since the center position of the two fingers is calculated to be the L / 2 position, that is, the center position of the scroll bar 3 in S10, the two fingers divide the scroll bar 3 into three equal parts. To identify the central area. Accordingly, the scrollable range is defined and limited in a state corresponding to the position on the scroll bar 3 where two fingers are placed. That is, with the page being displayed on the display screen 2 being the middle, the content for one page is hidden on the upper side of the display screen 2, and similarly, the content for one page is also hidden on the lower side of the display screen 2. A state is obtained.

  Thus, it is not necessary to press the two fingers so as to sandwich the slider 4. That is, an area where two fingers press the scroll bar 3 is specified regardless of the position of the slider 4. If only the multi-touch performed in the scroll bar 3 is limited to be detected as multi-touch for scrolling, an application of a type that operates in response to the multi-touch performed in the content display area malfunctions. Can be prevented.

  The processes in S9 to S11 described above are performed by calculating the scrollable range using the second relational expression of the scrollable range of the content to be displayed and the multi-touch dot interval and the display screen size. This corresponds to the second calculation step to be performed.

  Next, in S12, the signal determination unit 13 may determine whether or not there is a change in the distance between the two touch positions and perform processing according to the determination result. Note that the processing of S12 may be skipped and ignored even if the multi-touch interval is changed. Here, the case where the process of S12 is performed is demonstrated.

  FIG. 4B shows a case where the distance between two touch positions is continuously changed from L / 3 to 2L / 3, and the upper finger is moved without changing the lower position. The case where it is made to slide to the upper end of the scroll bar 3 is shown.

  Thus, when the signal determination unit 13 detects that the distance between the two positions on the scroll bar 13 has changed continuously (Yes in S12), the process returns to S5, and the signal determination unit 13 Recalculate the coordinates of the two points and the distance between the two points. Using this new calculation result and the second relational expression, the information processing unit 14 newly obtains the position of two points on the scroll bar and the scrollable range.

  In the example shown in FIG. 4B, the scrollable range is a page being displayed on the display screen 2 based on the distance 2L / 3 between the two touch positions and the vertical width L of the display screen 2. Is calculated as 3L / 2. Further, since the upper finger touches the upper end of the scroll bar 3, there is no scrollable range on the upper side of the display screen 2. On the other hand, on the lower side of the display screen 2, a display range of L / 2 obtained by 3L / 2-L is hidden as a scrollable range.

  FIG. 4C shows a case where the lower finger is slid to the lower end of the scroll bar 3 without changing the position of the upper finger, contrary to the above. In this case, there is no scrollable range on the lower side of the display screen 2, and a state in which the display range of L / 2 is hidden as the scrollable range on the upper side of the display screen 2 is obtained.

  When the distance between the two touch positions on the scroll bar 3 changes continuously as described above, the display control unit 15 maintains the display screen 2 without changing the state being displayed. It is preferable to do. This is because, even if the scrollable range changes, the display content being checked by the user does not change, and the user can easily find the desired position without hesitation.

  Here, even when the distance between the two touch positions continuously changes, a supplementary description will be given of the processing for maintaining the displayed state without changing.

  In order to maintain the display state without changing, the signal determination unit 13 detects a state from which the display control unit 15 performs the determination of maintaining the display state without changing. For example, (1) one of the two touch positions is unchanged, (2) the center position of the two touch positions is unchanged, and (3) the distance between the touch positions is a reference. It can be set to change at a speed higher than the value.

  Returning to the description of the processing in S12, when the determination result of the signal determination unit 13 in S12 is No, in S13, the signal determination unit 13 determines whether the user is dragging the multi-touch. In other words, the signal determination unit 13 determines whether or not the user slides two fingers on the scroll bar 3 without changing the interval between the two fingers.

  When the determination result in S13 is Yes, in S14, the signal determination unit 13 calculates new coordinates of the two fingers, and the information processing unit 14 determines the coordinates of the center position of the two fingers obtained from the new coordinates. And the coordinates of the center position of the two fingers obtained last time are compared. By this comparison processing, the information processing unit 14 obtains the moving direction and moving amount of the coordinates of the center position and outputs them to the display control unit 15.

  Further, in S15, the information processing unit 14 calculates a scroll amount of the content to be displayed using a first relational expression that will be described later with a specific example, and outputs the scroll amount to the display control unit 15. The first relational expression is an expression that defines the relation between the scroll amount of the content to be displayed, the multi-touch point interval, and the display screen size.

  Using the first relational expression, in the example of FIG. 4A, the center of two fingers is calculated based on the distance L / 3 between two touch positions and the vertical width L of the display screen 2. When the position is slid by L / 3, a scroll amount for executing scrolling for one page is calculated. This scroll amount is reduced to 3/10 of the scroll amount when the slider 4 displayed with a length of L / 10 in FIG. 1A is used.

  The display control unit 15 drives and controls the display unit 10 so that the display on the display screen 2 is scrolled according to the scroll amount calculated by the information processing unit 14 as described above. The processes of S14 and S15 are repeated until the sliding of two fingers stops. That is, the processes of S13 to S15 are repeated in a loop. When the signal determination unit 13 determines that the sliding of two fingers has stopped (No in S13), a series of scrolling operations ends.

  The processes of S9 and S12 to S14 described above calculate the scroll amount by using the first relational expression of the scroll amount of the display target content, the multi-touch point interval, and the display screen size. This corresponds to one calculation step. Further, S15 corresponds to a scroll step for executing scrolling of display contents in response to the multi-touch slide according to the calculation result.

(Other examples of scrollable range)
FIG. 7 is an explanatory diagram illustrating another example of a scrollable range. In another example, two pages of content are displayed on the display screen 2.

  It is assumed that the content is composed of eight or more pages, and the user performs multi-touch with two fingers opened at an interval of L / 4 above the center position of the scroll bar 3.

  In this case, using the second relational expression described later, the scrollable range is being displayed on the display screen 2 based on the distance L / 4 between the two touch positions and the vertical width L of the display screen 2. Is calculated as 4L.

  On the other hand, using the first relational expression described later, the center position of the two fingers is slid by L / 4 based on the distance L / 4 between the two touch positions and the vertical width L of the display screen 2. Then, a scroll amount for executing scrolling for one screen, that is, two pages is calculated.

  Further, since the distance between the upper finger and the upper end of the scroll bar 3 is L / 4, a scrollable range for one screen, that is, two pages exists on the upper side of the display screen 2. Similarly, since the distance between the lower finger and the lower end of the scroll bar 3 is L / 2, the scrollable range for two screens, that is, four pages exists on the lower side of the display screen 2. ing.

(Specific examples of the first relational expression and the second relational expression)
(1) Premise As a premise for explaining a specific example of the first relational expression, the following is determined.
Length of content to be displayed: K
Display screen 2 vertical width: L
Finger movement distance: r
Finger spacing: p
Content movement distance with respect to finger movement distance r: x
x corresponds to the scroll amount.

  Further, there is a relationship of K = nL (n is a real number greater than 1) between K and L, and p = L / m (m is a real number greater than 1) between p and L. ).

  It should be noted that a condition of m ≦ n may be set between n and m, and m> n may be prohibited, or m> n without the condition of m ≦ n. It may be acceptable. This point will be described later.

(2) In the case of single touch In scrolling by normal single touch, the scroll amount x is set so that the following proportional relationship is established.

r / L = x / K
Therefore, x = rK / L (Formula 1) is obtained.

  Substituting K = nL into the above (formula 1) yields x = nr (formula 2).

  Here, in the example shown in FIG. 1, if the finger movement distance r = L / 10 and the content length K = 10L, then n = 10, and the scroll amount x = L using (Expression 2). . This means that when the slider 4 is moved by L / 10, which is its own length, the scroll amount x is L, that is, movement for one page is executed.

(3) In the case of multi-touch (3-1) Second relational expression for determining a scrollable range The scrollable range α in the content to be displayed by the multi-touch at the finger interval p is, for example, the following second relation It can be defined by the formula.

α = L × (L / p) (Formula 3)
When the above (formula 3) is transformed by p = L / m, α = mL (formula 4) is obtained.

  In the example of FIG. 1, since p = L / 3, that is, m = 3, the scrollable range α is 3L according to the above (Equation 4).

  In (Expression 3), the scrollable range α and the finger spacing p are in an inversely proportional relationship. That is, when the distance between the two fingers and the upper end or the lower end of the scroll bar 3 is reduced by increasing the finger interval p, the scrollable range α is linearly reduced, and conversely, the finger interval p is reduced. The scrollable range α extends linearly. Setting the relationship as described above makes it easy for the user to intuitively understand the scrollable range α.

  However, since the second relational expression can be arbitrarily set, the setting method may be determined in terms of intuitive understanding and ease of operation.

(3-2) First Relational Formula for Determining Scroll Amount As for the multi-touch scroll amount, similarly to the single-touch scroll amount, the scroll amount x ′ is set so that the following proportional relationship (Equation 5) is satisfied. The user can perform an intuitive and easy-to-understand scroll operation. However, the scrolling is limited within the range of the scrollable range α obtained by (Expression 4).

r / L = x ′ / α (Formula 5)
When x ′ = rα / L is obtained from (Equation 5) and further transformed according to (Equation 4), the scroll amount x ′ can be defined by the following first relational expression.

x ′ = mr (Formula 6)
In the example of FIG. 1, m = 3 as described above. If the finger movement distance r is the distance L / 3 between two fingers, x ′ = L. That is, the scroll amount x ′ in multi-touch is moved by one page when the two fingers are slid by the same distance as the interval between the two fingers. In short, the movement amount of the finger for obtaining the scroll amount for one page is enlarged to 10/3 times when the slider 4 shown in FIG. Therefore, when the multi-touch slide amount and the single-touch slide amount are the same, the multi-touch scroll amount x ′ is reduced to 3/10 times the single-touch scroll amount x. As a result, access to the desired location is much easier.

  Since the first relational expression can also be set arbitrarily, the setting method may be determined in consideration of the relation with the second relational expression from the viewpoint of intuitive understanding and ease of operation.

  In addition, when the first relational expression and the second relational expression are determined by a combination of the above (formula 6) and (formula 4), sliding the multi-touch to the full length from the upper end to the lower end of the scroll bar 3; This corresponds to scrolling using the full scrollable range. Therefore, according to this setting, the scrollable range and the scroll amount corresponding to the multi-touch position and interval are extremely easy to understand and easy to operate.

(3-3) Supplement to the relationship between m and n As described above, the ratio n between the content length K and the vertical width L of the display screen 2, the finger interval p, and the vertical width of the display screen 2 It may be prohibited to set m> n between m and n, which is the ratio of L, and m> n, or m> n without setting m ≦ n. May be allowed. In this respect, the technical significance will be supplementarily explained.

  When the condition of m ≦ n is set and m> n is prohibited, even if the distance between the two fingers is narrower than the length of the slider 4 in the case of single touch, the distance corresponding to the narrow distance is satisfied. This means that a large scroll amount cannot be obtained. That is, even if the interval between the two fingers is narrower than the length of the slider 4 in the single touch, the scroll amount in the single touch becomes the upper limit.

  On the other hand, allowing the condition of m> n without the condition of m ≦ n means that the upper limit of the scroll amount is eliminated. That is, by narrowing the distance between the two fingers from the length of the slider 4 in the case of single touch, a larger scroll amount corresponding to the narrow distance can be obtained.

  Such conditions of m and n are initially set to one of the above two at the time of shipment of the information display device 1, and may not be changed by the user, or may be changed by the user. It may be selectable.

(Modified example 1 of multi-touch)
In the description so far, the multi-touch for the scroll operation is performed on the scroll bar 3. However, the present invention is not limited to this form, and may be a multi-touch form as shown in FIG. 5, for example.

  FIG. 5 is an explanatory view showing a modified example of multi-touch for the scroll operation according to the present invention. In the example of FIG. 5, one of the two fingers touches the scroll bar 3, and the other of the two fingers has a line connecting the two points parallel to the short side (X axis) of the display screen 2. In this state, the content display area is touched. In this case, the interval p between two fingers is recognized and calculated by the information processing unit 14 as p in the above-described second relational expression α = L × (L / p) (Expression 3).

(Modified example 2 of multi-touch)
FIG. 6 is an explanatory diagram showing a form in which the degree of freedom of multi-touch for scroll operation is increased. As shown in FIG. 6, if one of the two fingers is touching the scroll bar 3, the other of the two fingers is connected to the line connecting the two points as shown in FIG. The short side may not be in a parallel state.

  That is, a line segment connecting the touch positions of two fingers is decomposed into a component parallel to the X axis (X direction finger width) and a component parallel to the Y axis (Y direction finger width), for example, The information processing unit 14 recognizes and calculates the width of the finger in the Y direction as p in (Expression 3). Note that the width of the finger in the X direction may be calculated as p, or the length of a line segment connecting the touch positions of two fingers may be calculated as p.

  In this way, by allowing the line segment connecting the touch positions of two fingers to the X axis and the Y axis to be inclined, the operability for the user is further improved.

  When the scroll bar 3 is a vertical scroll bar displayed in the vertical direction (Y direction) of the display screen 2, the finger touching the scroll bar 3 is displayed by sliding on the scroll bar 3. Scrolls in the vertical direction of the display screen 2 is executed. In this case, the component parallel to the X axis is ignored, and the scrollable range and the scroll amount are calculated based on the component parallel to the Y axis.

  On the other hand, when the scroll bar 3 is composed of a vertical scroll bar and a horizontal scroll bar displayed at the lower end of the display screen 2, two fingers can be simultaneously slid in the X direction and the Y direction. In this case, the scroll that flows in the horizontal direction of the display screen is defined by the width of the finger in the X direction, and the scroll that flows simultaneously in the vertical direction of the display screen may be defined by the width of the finger in the Y direction.

  However, if two fingers are simultaneously slid in the X direction and the Y direction, both fingers are separated from the scroll bar, so that when the multi-touch for the scroll operation is recognized by the signal determination unit 13, Need to keep scrolling mode.

  Further, when the display screen 2 is vertically long as shown in FIG. 6 and the horizontal width is narrower than the vertical width, the horizontal movement amount may be reduced and the vertical movement amount may be increased. In other words, when the user multi-touches so that the component parallel to the X axis> the component parallel to the Y axis, such a relationship between the vertical and horizontal movement amounts is obtained.

(Modification 3 of multi-touch)
In the description so far, multi-touch has been a form of two-point touch. However, multi-touch is not limited to two-point touch, and the number of multi-touch points may be three or more.

  For example, when the active application is an application that is not confused with the multi-touch operation for enlarging the browser screen, or when the multi-touch for the scroll operation is recognized by the signal determination unit 13, If the scroll mode can be maintained, scrolling may be executed by touching the content display area with three or more fingers.

  When the content display area is touched with three or more fingers, the distance between the farthest fingers and the distance between the farthest fingers in the Y direction are set as p in (Equation 3) (in the case of a vertical scroll bar). Alternatively, the information processing unit 14 may recognize and calculate the distance between the fingers farthest in the X direction (in the case of a horizontal scroll bar). Conversely, the distance between the closest fingers, the distance between the fingers closest in the Y direction (in the case of a vertical scroll bar), or the distance between fingers closest in the X direction (in the case of a horizontal scroll bar) may be set as p. Or it is good also considering the total value or average value of the distance of all the fingers as p. Furthermore, the value of the area of a polygon formed by three or more fingers may be used as p.

(Scroll operation example 2)
Another example of the scroll operation executed by the information display device 1 according to the information display method described above will be described. FIG. 8 is a flowchart showing another processing procedure of the scroll operation executed by the information display device 1. Since the general flow of the processing procedure shown in FIG. 8 is the same as the processing procedure shown in FIG. 3, here, the difference from the processing procedure shown in FIG. 3 will be mainly described.

  The processing of S1 to S4 is as described with reference to FIG.

  In S5 ′, the signal determination unit 13 calculates the X coordinate and the Y coordinate of the two touched points from the plurality of detection signals input from the detection unit 12, and calculates the coordinates of the center position between the two points. Then, the coordinates of the center position are recorded in the storage unit 16.

  In S6 ′, the signal determination unit 13 compares the X coordinate and Y coordinate indicating the display area of the scroll bar 13 with the X coordinate and Y coordinate obtained in S5 ′. It is determined whether or not it is included in the display area of the scroll bar 13.

  If the determination result in S6 ′ is No, that is, if it is determined that even one point of multi-touch is out of the display area of the scroll bar 13, the process proceeds to S7 ′, and normal processing based on multi-touch is executed. Is done.

  If the determination result in S6 ′ is Yes, the process proceeds to S9, and the processes in S9 to S12 described with reference to FIG. 3 are similarly performed.

  When the determination result in S12 is No, the process proceeds to S13 ', and the signal determination unit 13 confirms whether the coordinates of the center position of the previous multi-touch have changed. The coordinate of the center position of the previous multi-touch is the coordinate recorded immediately before the current recording on the storage unit 16 executed in S5 '.

  If the confirmation result in S13 'is No, it means that multi-touch is not slid, and the process returns to S1. If the confirmation result in S13 'is Yes, it means that the multi-touch has been slid and the position has changed. Therefore, the information processing unit 14 uses the coordinates of the center position calculated in S5 ′ and the coordinates of the center position read from the storage unit 16 to calculate the direction and amount of movement of multi-touch, and performs display control. To the unit 15.

  The calculation of the scroll amount executed by the information processing unit 14 in S15 is as already described.

(Scroll operation example 3)
A modification example of the scroll operation by the three-point multi-touch will be described below.

  When the detection unit 12 detects three points of multi-touch and detects that two points are on the scroll bar 3 and the remaining one point is on the content display area, the information processing unit 14 The scroll amount is calculated by applying the interval between the two points on the scroll bar 3 to the first relational expression.

  On the other hand, the display control unit 15 executes scrolling of the display content corresponding to the one slide on the content display area according to the scroll amount obtained by the above calculation.

  In this embodiment, since the two fingers placed on the scroll bar 3 are not slid, the slide range is not limited to the length of the scroll bar 3. Further, the role of the two fingers placed on the scroll bar 3 is only to determine the scroll amount.

  In this case, since the scrollable range is not limited, scrolling can be executed in the entire range from the top to the end of the content by repeating the touching and sliding of the one point on the content display area. .

  Further, based on the position of the two fingers placed on the scroll bar 3, the scrollable range may be limited as described above. In this case, the detection unit 12 detects the position of the two fingers placed on the scroll bar 3, and the information processing unit 14 can scroll using the second relational expression as described above. Is calculated.

  Even if the user does not keep touching the two points on the scroll bar 3 and separates the two points from the display screen 2, the scroll corresponding to the one point slide on the display area is executed. If possible, the operability is further improved. For example, the user can perform a series of operations such as touching the scroll bar 3 with two fingers and then scrolling with one finger with only one hand.

  In this embodiment, one or both of the scroll amount obtained by the information processing unit 14 and the scrollable range are held in the storage unit 16, and the scroll operation is not canceled even if the two points are separated from the scroll bar 3. Then, it waits for the one-point slide on the display area. For example, when the signal determination unit 13 determines that the one-point slide on the display area is not executed beyond the reference time, the information processing unit 14 may cancel the scroll operation.

(Scroll operation example 4)
The information display device 1 includes a hardware input unit such as a conventional cross key, a trackball, or an up / down button. In addition to a two-point touch on the scroll bar 3, the user operates the input unit to move up and down. You may employ | adopt the form which performs a left-right scroll.

(Scroll operation example 5)
Finally, an example of a scroll operation when the multi-touch is slid and released from the display screen 2 will be described.

  When the detection unit 12 detects the multi-touch input position, the information processing unit 14 determines the position of the two points obtained by projecting the multi-touch point interval on the scroll bar 3, and the projection interval between the two point positions. Ask for.

  Further, in response to the detection unit 12 detecting that the multi-touch point has moved on the display screen 2 and then moved away from the display screen 2, the information processing unit 14 performs inertial scrolling at a constant speed. The constant speed is determined according to the projection interval.

  Thereby, when scrolling continues at a constant speed due to inertia, the constant speed can be changed according to the width of the multi-touch point interval.

  For example, when a multi-touch with a wide dot interval is separated from the display screen 2, scrolling is maintained at a moderate speed. On the other hand, when the multi-touch with a narrow dot interval is separated from the display screen 2, the scrolling is maintained at a rapid speed.

  As a result, user operability is further improved.

  In addition, you may employ | adopt the form which a scroll stops when a multi touch leaves | separates from the display screen 2. FIG. Furthermore, the limitation of the scrollable range and the scrolling by inertia may be combined so that the content can be moved within the limited range of movement.

  In the present invention, the relationship between the direction of movement of the touch position and the scroll direction can be arbitrarily set, and the user may be able to change the setting. For example, when the finger touching the display screen 2 or the scroll bar 3 is slid downward, the normal setting for scrolling the display content upward can be changed to the reverse setting for scrolling the display content downward. Also good.

  In this form, for example, in FIG. 4B, the scrollable range hidden on the lower side of the display screen 2 is concealed on the upper side of the display screen 2. That is, when two multi-touch points are slid down the scroll bar 3, the display content hidden on the upper side of the display screen 2 is moved downward and displayed. Similarly, in FIG. 4C, the scrollable range hidden on the upper side of the display screen 2 is hidden on the lower side of the display screen 2. That is, when the two points of multi-touch are slid upward on the scroll bar 3, the display content hidden under the display screen 2 is moved upward and displayed.

(Supplement)
Each part 10-16 of information display device 1, especially each part 12-15 may be constituted by hardware logic, and may be realized by software using CPU as follows.

  That is, the information display device 1 is configured by a CPU that executes instructions of a control program that realizes each function, a ROM that stores the program, a RAM that expands the program, a memory that stores the program and various data, and the like. A storage unit 16 or a recording medium is provided.

  An object of the present invention is a recording medium on which a program code (execution format program, intermediate code program, source program) of a control program of the information display device 1 which is software that realizes the above-described functions is recorded so as to be readable by a computer. This can also be achieved by supplying the information display device 1 and reading and executing the program code recorded on the recording medium by the computer (or CPU or MPU).

  Examples of the recording medium include a tape system such as a magnetic tape and a cassette tape, a magnetic disk such as a floppy (registered trademark) disk / hard disk, and an optical disk such as a CD-ROM / MO / MD / DVD / CD-R. Card system such as IC card, IC card (including memory card) / optical card, or semiconductor memory system such as mask ROM / EPROM / EEPROM / flash ROM.

  The information display device 1 may be configured to be connectable to a communication network, and the program code may be supplied via the communication network. The communication network is not particularly limited. For example, the Internet, intranet, extranet, LAN, ISDN, VAN, CATV communication network, virtual private network, telephone line network, mobile communication network, satellite communication. A net or the like is available. Also, the transmission medium constituting the communication network is not particularly limited. For example, even in the case of wired such as IEEE 1394, USB, power line carrier, cable TV line, telephone line, ADSL line, etc., infrared rays such as IrDA and remote control, Bluetooth ( (Registered trademark), 802.11 wireless, HDR, mobile phone network, satellite line, terrestrial digital network, and the like can also be used.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention.

  The present invention can be used for all apparatuses having an information display function. The present invention can be applied to, for example, a high-function mobile terminal having a communication function, an information processing function, and other various functions, a so-called smartphone.

DESCRIPTION OF SYMBOLS 1 Information display apparatus 2 Display screen 3 Scroll bar 12 Detection part 13 Signal discrimination | determination part (scroll calculating part)
14 Information processing section (scroll calculation section)
15 Display control unit 16 Storage unit (recording medium)

Claims (15)

A detection step for detecting that multi-touch on the display screen is an instruction to scroll the display screen;
A first calculation step for calculating the scroll amount by using a first relational expression of the scroll amount of the display target content and the multi-touch point interval and the display screen size when the instruction is detected; ,
And a scrolling step of scrolling the display contents in response to the multi-touch slide according to the result of the calculation. A detection step for detecting that multi-touch on the display screen is an instruction to scroll the display screen;
When the instruction is detected, the second relational expression between the scrollable range of the content to be displayed and the multi-touch point interval and the display screen size is used to calculate the scrollable range. Two computation steps;
A scroll step of performing scrolling of display contents in response to the multi-touch slide within the scrollable range obtained by the calculation. A display screen that allows touch input,
A detection unit for detecting the touch input and the input position;
When it is detected that the multi-touch on the display screen is an instruction to scroll the display screen using the detection result of the detection unit, the scroll amount of the display target content, the multi-touch point interval, and the display screen Using a first relational expression with the size, a scroll calculation unit for calculating the scroll amount;
An information display device comprising: a display control unit that executes scrolling of display contents in response to the multi-touch slide according to a result of the calculation. A display screen that allows touch input,
A detection unit for detecting a touch input and the input position;
Using the detection result of the detection unit, when it is detected that multi-touch on the display screen is an instruction to scroll the display screen, the scrollable range of the display target content, the multi-touch point interval, and the display Using a second relational expression with the size of the screen, a scroll calculation unit for calculating the scrollable range;
An information display device comprising: a display control unit that executes scrolling of display contents in response to the multi-touch slide within the scrollable range obtained by the calculation according to the result of the calculation. When the scroll calculation unit detects that the multi-touch on the display screen is an instruction to scroll the display screen, using the detection result of the detection unit, the scrollable range of the content to be displayed and the multi-touch Using the second relational expression between the touch point interval and the display screen size, the above scrollable range is calculated,
When the first relational expression is an expression for changing the scroll amount from large to small according to the change in the multi-touch point interval,
4. The information display apparatus according to claim 3, wherein the second relational expression is also an expression for changing the scrollable range from large to small in accordance with the change in the multi-touch point interval. . When the detection unit detects the input position of the multi-touch,
The scroll calculation unit obtains the position of two points obtained by projecting the multi-touch point interval on the scroll bar, and the projection interval between the two point positions,
The ratio of the projection interval to the length L of the scroll bar is 1 / m (m is a real number of 1 or more), and the position of the two points moves on the scroll bar while maintaining the projection interval. When the movement amount is r,
The first relational expression defining the scroll amount x of the content to be displayed is
6. The information display device according to claim 3, wherein x = mr. When the detection unit detects the input position of the multi-touch,
The scroll calculation unit obtains the position of two points obtained by projecting the multi-touch point interval on the scroll bar, and the projection interval between the two point positions,
When the ratio of the projection interval to the length L of the scroll bar is 1 / m (m is a real number of 1 or more),
The second relational expression that defines the scrollable range α of the content to be displayed is
The information display device according to claim 4, wherein α = mL. When the detection unit detects the input position of the multi-touch,
The scroll calculation unit obtains a position where a multi-touch dot interval is projected on a scroll bar,
4. The scrollable range hidden on the outer sides of one end and the other end of the display screen opposed to each other in the length direction of the scroll bar is determined by a position projected on the scroll bar. 8. The information display device according to any one of items 7. When the scroll calculation unit detects a continuous change in the projection interval between the positions of the two points obtained by projecting the multi-touch point interval on the scroll bar, the scrollable range is redefined.
The information display device according to claim 8, wherein the display control unit maintains a state of being displayed on the display screen. When the detection unit detects three points of multi-touch, and detects that two points are on the scroll bar and one point is on the content display area,
The scroll calculation unit calculates the scroll amount by applying an interval between two points on the scroll bar to the first relational expression,
4. The information display according to claim 3, wherein the display control unit executes scrolling of display contents corresponding to the one slide on the content display area according to the scroll amount obtained by the calculation. apparatus. When the detection unit detects three points of multi-touch, and detects that two points are on the scroll bar and one point is on the content display area,
The scroll calculation unit calculates the scrollable range by applying an interval between two points on the scroll bar to the second relational expression,
5. The display control unit according to claim 4, wherein scrolling of display contents corresponding to the one slide on the content display area is performed within the scrollable range obtained by the calculation. The information display device described. When the detection unit detects the input position of the multi-touch,
The scroll calculation unit obtains the position of two points obtained by projecting the multi-touch point interval on the scroll bar, and the projection interval between the two point positions,
Further, in response to the detection unit detecting that the multi-touch point has moved on the display screen and then moved away from the display screen, the scroll calculation unit maintains the scroll at a constant speed by inertia. The information display device according to claim 3, wherein the constant speed is determined according to the projection interval. An information display program for causing a computer to execute each step according to claim 1 or 2. 13. An information display program for causing a computer to function as each unit provided in the information display device according to claim 3. 15. A computer-readable recording medium in which the information display program according to claim 13 or 14 is stored.

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