JP4781957B2 - Mobile terminal device - Google Patents

Description

  The present invention relates to a mobile terminal device, and more particularly to a layout of operation keys in a mobile terminal device that uses a touch panel when inputting information.

  In recent years, not only in personal computers but also in mobile terminal devices such as mobile phones, opportunities to exchange information by manually inputting various information such as e-mails are increasing rapidly.

  In a portable terminal device, unlike a desktop personal computer, it is necessary to reduce the size of the terminal body in order to carry the portable terminal device. Along with this, it is necessary to balance the conflicting demands of downsizing the key input system and ensuring a certain level of operability. Therefore, in this type of portable terminal device, various techniques for improving operability at the time of key input are desired.

  As a technique for improving the operability of key input in a conventional mobile terminal device, for example, when the user changes the way of viewing the display screen, that is, when the operation is performed by changing the orientation of the mobile terminal device, the key operation system key arrangement Or what changed the setting of the display of a key operation part so that the stress at the time of a user's key operation can be reduced is proposed (for example, refer to patent documents 1 and 2).

  According to the techniques described in these patent documents, even when the operation is performed by changing the orientation of the mobile terminal device, the operation key is rotated in accordance with the change of the orientation of the mobile terminal device. The operation keys can always be maintained in a certain direction, so the user does not need to learn the key layout according to the orientation of the mobile terminal device, and even when operating the mobile terminal device with the right hand, hold it with the left hand. In this case, a certain level of operability can be maintained by inverting the operation key in accordance with each case.

JP 2002-51124 A JP 2005-12493 A

  However, the technology disclosed in the above patent document essentially ensures the visibility of the display screen on which information is displayed in various orientations, or holds the terminal body, that is, the terminal body with the right hand. This is a technique for maintaining the original operability even when the operation or the left hand is changed, and does not improve the operability of the key input itself during normal use.

  In these conventional portable terminal devices, every user performs an operation according to the same key configuration during normal use, and eventually, each user side has to operate according to the portable terminal device. It does not take into account the range of finger movement depending on the size of the user's hand or the position of the terminal device, and basically changes or corrects the key layout even if it seems difficult to use with the current key layout However, the operability cannot be improved. For this reason, there was a problem that it might be difficult for some users to use the terminal device.

  Accordingly, an object of the present invention made in view of such a point is to provide a portable terminal device that can easily change the operation key group displayed on the touch panel to a desired layout and improve operability. is there.

The invention of the portable terminal device according to claim 1 that achieves the above object is as follows:
A portable terminal device that displays an operation key group on a display unit and performs an input operation via a touch panel,
Detecting a continuous movement input by the touch panel starting from one point in the display range of the operation key group displayed on the display unit, and responding to the continuous movement input with one point corresponding to the starting point as a fixed point The starting point is moved, and the display range of the operation key group is enlarged or reduced according to the movement of the starting point, and at least a part of the operation key group is enlarged or reduced to change the layout of the operation key group It is characterized by providing the control means to do.

The invention according to claim 2 is the portable terminal device according to claim 1,
The control means is characterized in that the layout of the operation key group is changed so that the vicinity of the starting point is enlarged at a high magnification and the periphery of the fixed point is enlarged at a low magnification.

Furthermore, the invention according to claim 3 is the portable terminal device according to claim 1 or 2,
The fixed point is obtained by dividing the display range of the operation key group into four by two straight lines having the center of the display range as an intersection, and a distance from the center in a region diagonal to the region including the starting point. The longest point is a feature.

  According to the present invention, a continuous movement input by the touch panel starting from one point within the display range of the operation key group is detected, and the starting point is moved in accordance with the continuous moving input with one point corresponding to the starting point as a fixed point. In addition, since the display range of the operation key group is enlarged or reduced according to the movement of the starting point and at least a part of the operation key group is enlarged or reduced, the user can drag (trace) the touch panel. By doing this, the operation key group displayed on the touch panel can be easily changed to a desired layout, and the operability can be improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a diagram showing an outline of a mobile phone as a mobile terminal device according to an embodiment of the present invention.

  The portable terminal device 1 includes a rectangular input unit 2 in which a user performs an input operation with a finger or the like, and a monitor unit 3 that displays input information and the like. As shown in a schematic cross-sectional view in FIG. 2, the input unit 2 includes a display 4 that is a display unit that displays a group of operation keys, and a touch panel 5 that has a large number of contacts arranged in a matrix. The touch panel 5 is adapted to accept key operation inputs in conjunction with the display 4. Therefore, for example, when the user tries to touch the “1” portion of the number of the operation key displayed on the display 4 with his / her finger, the display of “1” on the display 4 is actually in front of the display 4. The touch panel 5 corresponding to the part is touched, and the touch panel 5 outputs a signal corresponding to the part.

  FIG. 3 is a block diagram showing a schematic configuration of a control circuit related to the mobile terminal device 1 according to the present embodiment.

  The mobile terminal device 1 includes the display 4 and the touch panel 5, the layout display means 6 for displaying the layout (key layout) of the operation key group on the display 4, and the layout of the operation key group when setting the layout of the operation key group. A range determining unit 7 for determining a possible range, a position determining unit 8 for determining a position, and a memory 9 storing a plurality of input patterns of the touch panel 5 corresponding to the layout of the operation key group and the layout of the operation key group; And a selection means 10 for selecting data of a pattern corresponding to the data determined by the range determination means 7 and the position determination means 8 from the memory 9, and a whole change control of the layout of the operation key group displayed on the display 4. And a control means 11 for controlling the operation.

  The outline of the operation key group layout method according to this embodiment will be described below.

  When the user is using the mobile terminal device 1 with one hand, it is difficult to perform key operations in the layout of the operation key group displayed by the initial setting, or in the layout display of the currently used operation key group. When the user feels that the key operation is difficult, as shown in FIG. 4, the user uses the finger normally used for the key operation on the touch panel 5 to display a simple diagram 12 (approximately circular or polygonal). (Hereinafter referred to as a circular diagram) is drawn in a single stroke. At this time, it is easy to confirm the actual diagram 12 input by the user by drawing the locus in dots in real time at the location of the corresponding display 4 with respect to the diagram 12 drawn on the touch panel 5. You can also

  In a normal key operation, a finger touching the touch panel only touches a point for a moment, so that it can be distinguished from a continuous input such as an operation of drawing a circular diagram 12 intentionally. The mobile terminal device 1 detects this continuous input and switches to the operation key group layout setting mode.

  Note that a switching means (such as operation keys) for switching to the operation key group layout setting mode may be provided separately, and the display position and range input may be received after switching to the operation key group layout setting mode by this switching means.

  The position determining means 8 determines the display position of the operation key group based on the information of the circular diagram 12 drawn by the user, and the range determining means 7 determines the display range of the operation key group. At this time, the position determining means 8 determines whether the user's input is a right-hand operation or a left-hand operation from the position where the user starts writing the circular diagram 12, the direction from the start point to the end point of the locus to be drawn, and the like. Further, the range determining means 7 determines the movable range 13 within which the finger can easily reach the inside of the circular diagram 12 drawn by the user with the finger, and determines the display range of the operation key group based on this.

  In addition, when the user determines that the layout of the operation key group will be too small in the previously drawn circular diagram 12, it is possible to continuously draw a circular diagram 12 having a larger area. is there. For this purpose, the continuous operation starts when the finger first touches the touch panel 5, and the continuous input is ended and the input operation is completed with the finger drawing the circular diagram 12 moving away from the touch panel as a trigger. It is desirable to consider and send corresponding signals to the decision means 7 and 8. When the user performs a conscious operation of drawing a circular diagram 12, the portable terminal device 1 is switched to the operation key group layout setting mode. It is possible to prevent malfunction such as activation of the range determining means 7 or the position determining means 8 with a slight touch.

  If the movable range 13 determined by the range determining means 7 is too small, and it is determined that effective key operation cannot be performed even if the corresponding operation key group layout is displayed, the operation key group layout setting mode is used. The standard key layout used until just before the key layout or the key layout at the time of initial setting is selected and displayed on the display 4.

  In this way, when the drawn circular diagram 12 is too small, a warning sound is sounded and the user is prompted to re-input, or the previous key layout (or the initial setting) It is also possible to notify that the key layout is selected. When the mobile terminal device 1 is used while being gripped with only one hand, it is assumed that the finger used for key operation by the user during normal operation is mostly the thumb. For this reason, when the layout of the operation key group is set too small, a key layout that is easy to be erroneously input to the user can be obtained by issuing a warning as described above or using a preset key layout. Providing can be prevented.

  Further, when no key input is performed for a long time, the sleep mode (energy saving mode) in which the display 4 is not driven can be set in order to prevent battery consumption. In this case, the sleep mode can be canceled by drawing a diagram on the touch panel 5 by a one-stroke writing operation with a finger or the like, and this locus can be displayed on the display 4. Of course, when a finger touches a point on the touch panel 5 for a moment, it is possible to shift to a normal key operation mode.

  With reference to the flowchart shown in FIG. 5, the operation key group layout method of the portable terminal device 1 concerning this Embodiment is demonstrated in detail.

  First, in step S101, it is detected that the user touches the touch panel 5 with a finger or the like. If the user is in the sleep mode at that time, the sleep mode (energy saving mode) is canceled in step S102.

  Next, in step S103, the user determines whether continuous input is performed by drawing a circular diagram 12 in a single stroke on the surface of the touch panel 5 with a finger or the like. If not, that is, if it is determined that the user desires normal operation, the process proceeds to step S104. Here, it is determined whether or not the setting for displaying the key layout used immediately before is set. If it is not set to use the immediately preceding key layout, the process proceeds to step S105, the default key layout stored in the memory 9 is displayed on the display 4, and the process proceeds to step S115. In this case, the control means 11 controls the selection means 10 to take out the data of the default key layout from the memory 9.

  If it is set in step S104 to use the key layout that was used immediately before, the key layout that was used immediately before is displayed on the display 4 in step S106, and the process proceeds to step S115.

  On the other hand, if it is determined in step S103 that continuous input has been made on the surface of the touch panel 5, it is determined that the user wants to change the layout of the operation key group, and the layout of the operation key group is determined in step S107. Switch to operation key group layout setting mode for setting.

  Next, in step S108, the locus of the position touched by the finger is displayed in dots on the display 4 in order to indicate that the input is performed by touching the touch panel 5 with the finger of the user.

  Thereafter, in step S109, it is determined whether or not the continuous input has been completed by the user's finger or the like being removed from the touch panel 5. If the continuous input has not been completed, the locus is continuously displayed on the display 4 in step 108. . As a result, the user can confirm the locus drawn by the user, can see the input position in real time, and can continue to draw a larger diagram if he feels that the drawn diagram is too small. .

  If it is determined in step S109 that the user has lifted a finger or the like from the touch panel 5, that is, if it is determined that the continuous input of the circular diagram 12 has been completed, the process proceeds to step S110.

  In step S110, it is determined whether or not the circular diagram 12 is drawn a plurality of times. If the diagram is drawn a plurality of times, a large trajectory shape is selected in step S111, and the process proceeds to step S112. Transition.

  On the other hand, if a plurality of circular diagrams 12 do not exist in step S110, the currently drawn diagram is selected and the process proceeds to step S112.

  In step S112, it is determined whether or not a preset minimum key layout can be set at a position and range based on the selected diagram. If the minimum key layout cannot be set, or if an appropriate key layout based on the selected diagram cannot be found, the process proceeds to step S113 to warn the user and returns to the continuous input in step S103. By doing so, it is possible to prevent selection of a key layout that is too small and impractical.

  If it is determined in step S112 that the key layout can be displayed at the position and range based on the diagram, the process proceeds to the key layout process in step S200. The key layout process in step S200 will be described later.

  In step S114, the key layout based on the information subjected to the key layout processing is read from the memory 9 by the control means 11, displayed at the designated position and range of the display 4, and the process proceeds to step S115.

  In step S115, it is determined whether or not a user's finger or the like has touched the touch panel 5. If it is determined that the touch has been made, key input processing is performed in step S116. This assumes a mode in which a normal key operation is performed, that is, a key operation when the operation key group layout setting mode is not set.

  When the user touches the touch panel 5 at a location corresponding to the position of each key displayed on the display 4 with a finger or the like, the user recognizes that the key is pressed, emits a confirmation sound, and performs key input processing. Do. After performing the key input process in step S116, the process returns to step S115 and waits for the next key input.

  If it is determined in step S115 that there is no key input from the touch panel 5, the process proceeds to step S117, and the time from the last key input is measured and is within the preset time. Return to step S115 to wait for the next key input. On the other hand, if there is no key input even after a preset time has elapsed, the process proceeds to step S118, and the display 4 is switched to the sleep mode.

  6A and 6B are diagrams showing an example of key layout by the operation key group layout method according to the present embodiment.

  When the user draws, for example, a circular diagram 12 on the touch panel 5, the inside of this locus is determined as the movable range 13 in which the finger can be moved without difficulty. At this time, the range is determined by the range determining means 7 reading this locus. A key layout based on the range thus determined is read from the memory 9 by the selection means 10, and this key layout is displayed on the display 4 by the layout display means 6. These controls are performed by the control means 11, and a large number of key layouts corresponding to various cases are stored in the memory 9 in advance.

  As a key layout pattern stored in the memory 9, for example, a pattern shown in FIG. 6A that allows the entire key layout to fit inside a circular diagram 12 drawn by the user, Assuming that the drawn circle diagram line 12 is included in the movable range 13 of the finger, the entire key is arranged so that the locus passes around the center of each of the four keys arranged at the four corners of the entire key layout. The pattern shown in FIG. 6B to be laid out can be considered.

  In addition, some keys, for example, keys such as “telephone”, “manner” and “off”, are regarded as infrequently used keys when inputting e-mail on the mobile terminal device. With reference to four keys (for example, “1”, “3”, “#”, and “*” in this case) arranged in the four corners of the entire key layout with these keys excluded, FIG. It is also possible to set a key layout pattern configuration as shown in FIG.

  Next, the key layout process of step S200 described above will be described with reference to the flowchart shown in FIG. In this example, it is assumed that a large number of key layout patterns having a fixed aspect ratio are stored in the memory 9.

  First, in step S201, the center of gravity of the drawn figure is obtained from the circular diagram 12 drawn on the touch panel 5. At this time, if the drawn figure is not a closed figure, the process of connecting the start point and the end point can be performed to approximate the circle.

  Next, in step S202, as shown in FIG. 8, the distance in the angle α direction is calculated from the center of gravity. The angle α is a predetermined angle from the x axis when the center of gravity of the figure is the origin and the x axis and the y axis perpendicular to each side of the rectangular input unit 2 are taken. For example, α = 45 °. Assuming that the center of gravity obtained in step S201 is O, the four intersections of the two straight lines drawn in the direction of the angle ± α and the trace figure are a, b, c, and d, respectively, and line segments Oa, Ob, Oc, and Od. Find the length of.

  In step S203, the line segment Oa, Ob, Oc, and Od having the shortest length is selected, and the line A is selected, and the process proceeds to step S204. Here, for example, it is assumed that the line segment Oa is the shortest, that is, Oa = A.

  In step S204, a reference key layout that falls within the locus is selected from the memory 9. Here, as shown in FIG. 9, since the line segment Oa is the shortest (Oa = A), the key layout is selected so that the circular diagram 12 drawn by the user satisfies A ≧ A ′ passing through the point P1. To do. This key layout is included in the locus of the circular diagram 12 drawn by the user's finger.

  Next, in step S205, when the user desires a larger key layout, that is, a key layout having a larger key interval, it is determined whether or not a key layout that is slightly enlarged can be selected. For example, in a key layout such that A≈B ′, the diagram drawn by the user passes P2, and the key layout becomes larger than the key layout that satisfies A ≧ A ′. Similarly, in a key layout in which A≈C ′, a diagram drawn by the user passes P3, and the configuration is larger than the key layout in which A≈B ′.

  In step S205, if the circular diagram 12 is drawn with the maximum size within the range of the key display area of the display 4, the key layout included in the locus of the diagram (A ≧ A ′) Therefore, the key layout is read by referring to the memory 9 in step S207 and displayed on the display 4.

  On the other hand, if it is determined in step S205 that a larger key layout can be displayed than when A≈A ′, the process proceeds to step S206.

  In step S <b> 206, it is determined whether or not the size of the key layout desired by the user for the diagram to be drawn is set in advance. That is, whether the user wants a key layout that is entirely contained in the drawn diagram, or the center of each of the four corner keys (for example, “phone”, “off”, “#”, and “*” keys). It is determined whether the user has preset whether the user wants a key layout that is almost on the line of the diagram, or a key layout that circumscribes the four corner keys.

  If the user setting has been made for the desired key layout in step S206, the corresponding key layout is referenced in the memory in step S207 and displayed on the display 4. On the other hand, if the user setting has not been made, the user is prompted to input the reference position in step S214, and the corresponding key layout is referenced from the memory 9 and displayed on the display 4 in step S207.

  In this way, it is possible to configure a key layout in consideration of the movable range of the finger only by requesting a simple finger operation from the user.

  Next, the main part of the operation key group layout changing operation by the portable terminal device 1 of the present embodiment will be described.

  In the present embodiment, for example, when the usage of the mobile terminal device 1 is switched from the telephone function to the mail creation function, or when it is difficult to operate with the current key layout for some reason, depending on the usage mode at that time Allows easy change of key layout.

FIG. 10A shows the layout of the operation key group displayed on the display 4 as described above, and the size of each key is the same. That is, the horizontal size of each key is X ₁₁ = X ₁₂ = X ₁₃ , and the vertical size is Y ₁₁ = Y ₁₂ = Y ₁₃ = Y ₁₄ = Y ₁₅ .

Next, when the user desires to change the key layout, for example, the touch panel displays a position corresponding to _one point on the lower right of the frame of the entire key layout, that is, the lower right (point XY ₁ ) of the “#” key. Suppose that the user presses the finger with a finger or the like at 5 and drags (traces while touching) a point outside the key layout frame (for example, point XY ₂ ) indicated by the arrow in FIG.

Then, the information on the drag operation with the point XY ₁ as the pressing point (starting point) is read from the touch panel 5 by the control unit 11, and the control unit 11 selects _one point (point) corresponding to the point XY ₁ (starting point) based on this information. For example, using the point XY) as a fixed point, the display position of the point XY ₁ is dragged to the point XY ₂ according to continuous movement input, and the operation key group is expanded to change the layout.

  Here, the fixed point is determined as follows. That is, as shown in FIG. 11, the center point M of the frame of the entire key layout is set, and the display area of the key layout is divided into four by arbitrary two straight lines L1 and L2 passing through the center point M. For example, if the user starts a drag operation starting from the point XYnn, the point farthest from the midpoint M in the region facing the point XYnn pressed among the four divided regions is defined as the fixed point XY. Set.

As a result, the key layout was originally a rectangular area with the line segment connecting these two points, the pressing point (XY ₁ ) before dragging and the point XY, which is a fixed point opposite to the pressing point, as a diagonal line. After the drag operation, the key layout is expanded with the line segment connecting the pressed point (XY ₂ ) after dragging and the fixed point XY as a diagonal line. Further, in the present embodiment, when this layout is enlarged, the enlargement ratio of each key is such that X ₂₁ <X ₂₂ <X _{23 in} the horizontal direction and Y ₂₁ <Y _{22 in the} vertical direction. <Y ₂₃ <Y ₂₄ <Y _{25 In} order to satisfy the relationship, the periphery of the display position that is the starting point (XY ₁ ) has a high magnification, and the periphery of the display position that is a fixed point (XY) has a low magnification. Zoom in. Such a layout is displayed on the display 4 with reference to the memory 9, or the enlargement ratio is calculated and displayed each time by the control means 11. As the size of each key is changed, the font size of characters such as numbers on each key can be changed corresponding to the key size to be displayed on the display 4. .

  Further, when it is felt that the degree of movement has passed after the drag operation is performed, the layout in the state as shown in FIG. 10B can be obtained by performing the drag operation in the reverse direction. Of course, it is possible to return to the layout in the state as shown in FIG. By making fine adjustments by performing such operations, a layout suitable for each user can be provided.

  Although not shown, for example, a point on the bottom of the outer frame of the entire layout (that is, a line below the “*”, “0”, and “#” keys) is pressed on the touch panel 5 and dragged. When operated, the key layout can be changed only in the vertical direction.

In this case, the size of each key is changed only in the vertical magnification. That is, the ratio of the size of each key in the row direction is Y _{21, with} the upper side of the outer frame of the entire layout as the opposing axis (that is, the upper line of the “phone”, “manner”, and “off” keys) as the fixed axis <Y ₂₂ <Y ₂₃ <Y ₂₄ <Y ₂₅

  Similarly, one point on the right side of the outer frame of the entire layout (that is, the right side line of the “Cut”, “3”, “6”, “9” and “#” keys) is displayed on the touch panel 5. By pressing and dragging, the key layout can be changed only in the horizontal direction.

Furthermore, dragging on the X axis from the pressing point (XY ₁ ) can change the ratio of the layout and the size of each key in the X axis direction, and dragging in the Y axis direction can change the layout and the size of each key in the Y axis direction. The ratio of can be changed.

  The example in the case where one point on the frame of the entire key layout is dragged has been described above. Next, an example in which one point in the key layout is dragged will be described. This is used when, for example, a layout in which a frequently used key is large and easy to use is desired by enlarging around a specific key.

FIG. 12A shows a key group that is first displayed on the display 4 according to the layout of the operation key group, and the size of each key is the same. That is, the horizontal size of each key is X ₄₁ = X ₄₂ = X ₄₃ , and the vertical size is Y ₄₁ = Y ₄₂ = Y ₄₃ = Y ₄₄ = Y ₄₅ .

From this state, for example, the touch panel 5 at the position (starting point) corresponding to the lower right point inside the frame of the key layout, that is, the lower right (point XY ₄₁ ) of the key “8” is pressed with a finger or the like, It is assumed that a drag operation is performed to the outside of the key layout frame to a point XY ₅₁ indicated by an arrow in (b).

Then, information on the drag operation using the XY ₄₁ as a pressing point (starting point) is read from the touch panel 5 by the control unit 11, and the control unit 11 performs control to change the layout of the operation key group based on this information. . In this case, the key layout of the rectangular area having the line segment connecting the two points of the pressing point (XY ₄₁ ) before dragging and the point XY that is a fixed point corresponding to the pressing point is a diagonal line, after the drag operation, The key layout with the line segment connecting the pressed point (XY ₅₁ ) after dragging and the fixed point XY as a diagonal line is expanded, and for the other keys, the keys arranged in the vertical direction have a horizontal size of Keys arranged in the horizontal direction without change will have an expanded layout without changing the vertical size. That is, the horizontal enlargement ratio of the key size is X ₅₁ <X ₅₂ , X ₅₃ = X ₄₃ , and the vertical enlargement ratio is Y ₅₁ <Y ₅₂ <Y ₅₃ <Y ₅₄ , Y ₅₅ = Y _45. It becomes a key layout like this. Such a layout is displayed on the display 4 with reference to the memory 9, or the enlargement ratio is calculated and displayed each time by the control means 11.

  In FIG. 12B, the key group is enlarged around a specific key in the frame of the entire key layout. However, as shown in FIG. 12C, the size of the frame of the entire key layout is changed. Instead, each key in the frame of the entire layout can be enlarged and reduced with a certain key in the frame as the center.

That is, by a drag operation similar to the above, a key on the touch panel 5 corresponding to the lower right position of the frequently used key, for example, the “8” key (point XY _{41 as} the starting point in FIG. 12A) is pressed. Then, a drag operation is performed to the outside of the key layout to one point (point XY ₆₁ ) indicated by the arrow in FIG. 12C, and the finger is released. In this case, the size of the frame of the entire key layout is not changed, and each key in the frame of the entire layout is enlarged and reduced. In this example, the X ₆₃ column and the Y ₆₅ row are displayed with the keys reduced. For the other keys, the horizontal direction is X ₆₁ <X ₆₂ , and the vertical direction is Y ₆₁ <Y ₆₂ <Y ₆₃ <Y ₆₄ . It is enlarged and displayed. Such a layout is displayed on the display 4 with reference to the memory 9, or the control means 11 calculates and displays the enlargement ratio and reduction ratio each time.

  In this way, it is possible to change the size of only an arbitrary key in the original key layout without changing the size of the original key layout.

  As described above, according to the present embodiment, the user starts dragging from an arbitrary point in the key layout, so that the layout is started with the farthest point of the region facing the region where the pressed starting point exists as a fixed point. Since it can be changed, it can be easily changed to a desired layout, and operability can be improved.

  In addition, this invention is not limited only to embodiment mentioned above, Many change or deformation | transformation is possible. For example, in the above embodiment, the user first draws the circular diagram 12 and changes the key layout to the desired layout after setting the key layout, but the key set as the default in the initial setting state is used. Of course, the layout can be changed based on the layout.

  In the above embodiment, when the key layout is changed, the key group is expanded by dragging the finger from the layout before the change to the outside of the layout. However, the finger is laid out from the layout before the change. It is also possible to reduce the key group by dragging the inside of the key. In this case, when a point is reduced by dragging one point of the outer frame of the entire key layout, the entire layout is reduced, and the key group is also reduced at a stepwise reduction rate. Also, when dragging a point inside the key layout further inward, especially the processing when the key group is reduced around the dragged key to reduce the entire layout, or the size of the entire layout is not changed. It is possible to perform processing when the dragged key is reduced and the surrounding keys are mixed to enlarge and reduce.

  The mobile terminal device 1 according to each embodiment of the present invention can be typically a terminal device such as a mobile phone, but is not limited to this, and a mobile terminal device such as a PDA is used. It can also be applied to various portable terminal devices including the above.

It is a figure which shows the outline of the portable terminal device which concerns on one embodiment of this invention. It is a schematic sectional drawing of the input part of the portable terminal device shown in FIG. Similarly, it is a schematic block diagram of a control circuit. It is a figure explaining the outline of the operation key group layout method in the portable terminal device shown in FIG. Similarly, it is a flowchart for explaining a display operation of an operation key group layout. Similarly, it is a figure which shows the example of a key layout. 6 is a flowchart for explaining details of layout processing shown in FIG. 5. Similarly, it is a figure for demonstrating a layout process. Similarly, it is a figure for demonstrating a layout process. It is a figure for demonstrating the change process of a layout. It is a figure for demonstrating the setting of the fixed point at the time of changing a layout. It is a figure for demonstrating the change process of a layout.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Portable terminal device 2 Input part 3 Monitor part 4 Display 5 Touch panel 6 Layout display means 7 Range determination means 8 Position determination means 9 Memory 10 Selection means 11 Control means 12 Circular diagram 13 Movable range

Claims (3)

A portable terminal device that displays an operation key group on a display unit and performs an input operation via a touch panel,
Detecting a continuous movement input by the touch panel starting from one point in the display range of the operation key group displayed on the display unit, and responding to the continuous movement input with one point corresponding to the starting point as a fixed point The starting point is moved, and the display range of the operation key group is enlarged or reduced according to the movement of the starting point, and at least a part of the operation key group is enlarged or reduced to change the layout of the operation key group A portable terminal device comprising control means for performing   2. The portable terminal according to claim 1, wherein the control unit changes a layout of the operation key group so as to enlarge the periphery of the starting point with a high enlargement ratio and the periphery of the fixed point with a low enlargement ratio. apparatus.   The fixed point is obtained by dividing the display range of the operation key group into four by two straight lines having the center of the display range as an intersection, and a distance from the center in a region diagonal to the region including the starting point. The portable terminal device according to claim 1, wherein the longest point is the longest point.

Images