JP2010186254A - Display controller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display controller for controlling the displaying of a virtual key, so as to prevent an erroneous input when inputting information using the virtual key displayed in a contact-detectable display part. <P>SOLUTION: The display controller for controlling the displaying of the virtual key displayed in a contact-detectable display part includes: a contact position detecting part for detecting a contact position by an external operation means on the display part; a candidate key selecting part for determining a prescribed area, based on the contact position, and selecting the virtual key superimposing on the prescribed area as a candidate key; a contact size measuring part for measuring the longitudinal or lateral length of a contact area by the external operation means on the display part; and a display control part for controlling the display part thereby to display the candidate key at a longitudinal or lateral gap which is equal to or more than the longitudinal or lateral length of the contact area measured by the contact size measuring part. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a display control device that controls display of virtual keys displayed on a display unit capable of detecting contact.

  FIG. 13 is a diagram illustrating an example of changing the arrangement of buttons displayed on the display device by the display control device described in Patent Document 1. In the display control device of Patent Document 1, when an operator's finger is pressed on the pressed area detection screen displayed on the touch panel, the pressed area detecting unit detects the pressed area and registers this information in the arrangement information storage unit. To do. Further, when displaying the buttons on the display device, the display control device determines the size of the buttons and the interval between adjacent buttons based on the information registered in the arrangement information storage unit. As shown in FIG. 13, the display control device displays buttons on the display device based on the determined button size and the interval between adjacent buttons.

  FIG. 14 is a diagram illustrating keys displayed on the touch panel and an enlarged display example thereof by the information terminal device described in Patent Document 2. When the user presses the touch panel, the information terminal device of Patent Document 2 displays a predetermined range including a key pressed by the user with a finger as shown in FIG.

JP 2006-268313 A JP 2002-91677 A

  According to the display control device of Patent Document 1, as shown in FIG. 13, all buttons to be displayed on the display device are displayed in an enlarged manner, and the interval between the buttons is also expanded vertically and horizontally. For this reason, depending on the display area of the display device, if the number of buttons to be displayed is large, a situation may occur in which all the buttons after the enlarged display cannot be displayed on the display device.

  In addition, according to the information terminal device of Patent Document 2, as shown in FIG. 14, there is no space between the keys displayed in an enlarged manner. Therefore, when the user presses the desired key displayed in an enlarged manner, a situation may occur in which a key adjacent to the desired key is also pressed. For this reason, if an erroneous input occurs, the user must perform an operation for correcting the erroneous input.

  The objective of this invention is providing the display control apparatus which controls the display of a virtual key so that an incorrect input can be prevented at the time of the input of the information using the virtual key displayed on the display part in which a contact detection is possible.

  The present invention is a display control device that controls display of a virtual key displayed on a display unit capable of contact detection, the contact position detection unit detecting a contact position by an external operation means on the display unit, and the contact A candidate key selection unit that determines a predetermined region based on a position and selects a virtual key that overlaps the predetermined region as a candidate key, and a vertical or horizontal length of a contact region on the display unit by the external operation unit A contact size measuring unit for measuring the candidate key, and the display unit for displaying the candidate key with a vertical or horizontal interval equal to or longer than a vertical or horizontal length of the contact area measured by the contact size measuring unit And a display control unit for controlling the display.

  The display control device includes a contact time measuring unit that measures a continuous contact time with the display unit by the external operation unit, and the display control unit is configured to respond to the continuous contact time measured by the contact time measuring unit. The display unit is controlled to display the candidate key in an enlarged size.

  The display control device includes a first storage unit that stores information on a vertical or horizontal length of the contact area measured by the contact size measurement unit over a contact time with the display unit by the external operation unit. And the display control unit sets the candidate keys with a vertical or horizontal interval equal to or greater than a maximum vertical or horizontal length of the contact area in the information stored in the first storage unit. The display unit is controlled to display.

  The display control device is configured so that the contact position detected by the contact position detection unit and the contact area measured by the contact size measurement unit are vertically or horizontally measured over the contact time with the display unit by the external operation unit. A second storage unit that stores length information; and the display control unit is configured to obtain a vertical or horizontal length of the combined contact region obtained based on the contact position and the contact region stored in the second storage unit. And the candidate keys are displayed at intervals in the vertical or horizontal direction that are equal to or greater than the vertical or horizontal length of the composite contact area.

  In the display control device, the candidate key selection unit selects a virtual key included in the predetermined area as the candidate key.

  According to the display control device of the present invention, it is possible to control the display of the virtual key so that erroneous input can be prevented when inputting information using the virtual key displayed on the display unit capable of detecting contact.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The display control device according to the present invention is included in an information input display device described below.

(First embodiment)
FIG. 1 is a block diagram illustrating an information input display device according to the first embodiment. As illustrated in FIG. 1, the information input display device according to the first embodiment includes a touch panel 101, a contact position detection unit 103, a contact size measurement unit 105, a control unit 107, and a key selection unit 109. The control unit 107 includes a candidate key selection unit 111 and a display control unit 113.

  The touch panel 101 outputs a signal indicating an area (hereinafter referred to as “contact area”) that is touched or pressed by a display unit such as a liquid crystal panel and an external operation unit such as a user's finger or stylus of the information input display device. And a position input unit to be configured.

  The contact position detection unit 103 detects a contact position by an external operation unit on the touch panel 101 based on a signal output from the touch panel 101. The contact position detection unit 103 detects the center point of the contact area indicated by the signal sent from the touch panel 101 as the contact position by the external operation means. A signal indicating the contact position detected by the contact position detection unit 103 is sent to the candidate key selection unit 111 of the control unit 107.

  The contact size measuring unit 105 measures the vertical and horizontal lengths of the contact area on the touch panel 101 by the external operation means based on the signal output from the touch panel 101. Note that the vertical and horizontal lengths of the contact area are measured based on the grid-like data shown in FIG. 2 created from the signal output from the touch panel 101. A signal indicating the vertical and horizontal lengths of the contact area measured by the contact size measuring unit 105 is sent to the display control unit 113 of the control unit 107.

  The candidate key selection unit 111 of the control unit 107 is a circular predetermined key centered on the contact position detected by the contact position detection unit 103 among virtual keys (hereinafter simply referred to as “keys”) displayed on the touch panel 101. A key included in the area is selected as a candidate key. The predetermined area is not limited to a circular shape, but may be a rectangular shape. In addition, the display control unit 113 of the control unit 107 has the same vertical interval as the vertical length of the contact area measured by the contact size measurement unit 105 and the same horizontal interval as the horizontal length of the contact area. And the touch panel 101 is controlled to display the candidate keys.

  3 and 4 are diagrams illustrating display examples of the touch panel 101 when the vicinity of the upper left key of the plurality of keys displayed on the touch panel 101 is touched with a finger. As shown in FIG. 3A, when the vicinity of the upper left key is touched with a finger among a plurality of keys displayed on the touch panel 101, a signal indicating a contact area represented by hatching is touched from the touch panel 101. It is sent to the position detection unit 103 and the contact size measurement unit 105.

  The contact position detector 103 detects the center point of the contact area indicated by a black circle in FIG. 3A as the contact position. The candidate key selection unit 111 includes keys “A”, “I”, “K”, “K” that are completely included in the circular area 151 indicated by the dotted line in FIG. "Is selected as a candidate key. It should be noted that the candidate key selection unit 111 includes keys (keys “a”, “i”, “u”, “ka”, “ki”, “ku”, “sa”, “shi”) that at least partially overlap the area 151. "," Su ") may be selected as candidate keys. The contact size measurement unit 105 measures the vertical length A and the horizontal length B of the contact area indicated by hatching in FIG. The display control unit 113 controls the touch panel 101 to display four candidate keys with the same interval as the length A in the vertical direction and with the same interval as the length B in the horizontal direction.

  Also in the case shown in FIG. 4, the display control unit 113 sets the same interval as the vertical length C of the contact area in the vertical direction and the same interval as the horizontal length D of the contact area in the horizontal direction. The touch panel 101 is controlled to display the four candidate keys “A”, “I”, “K”, and “K”. In the present embodiment, the display control unit 113 does not change the size of the candidate key and sets only the interval as described above.

  When the external operation means is brought into a non-contact state from the contact state with the touch panel 101, the key selection unit 109 determines the candidate key that the external operation means is in contact with as the input key immediately before the non-contact state is established. When the input key is confirmed by the key selection unit 109, a confirmation signal is sent from the key selection unit 109 to the display control unit 113 of the control unit 107. When the display control unit 113 receives the confirmation signal, the display control unit 113 controls the touch panel 101 to return from the display state of the above-described spaced candidate keys to the original display state without any interval.

  FIG. 5 is a flowchart showing the operation of the information input display device of the first embodiment. As shown in FIG. 5, first, in step S101, the touch panel 101 determines contact by an external operation means. If there is contact, the touch panel 101 outputs a signal indicating a contact area and proceeds to step S103. In step S <b> 103, the contact position detection unit 103 detects a contact position by an external operation unit on the touch panel 101. Next, in step S <b> 105, the candidate key selection unit 111 selects, as candidate keys, keys included in a predetermined circular area centered on the contact position among the keys displayed on the touch panel 101.

  Next, in step S107, the contact size measuring unit 105 measures the vertical and horizontal lengths of the contact area on the touch panel 101 by the external operation means. Next, in step S109, the display control unit 113 displays candidate keys at the same vertical interval as the vertical length of the contact area and at the same horizontal interval as the horizontal length of the contact area. The touch panel 101 is controlled. Next, in step S111, the touch panel 101 determines to maintain the contact by the external operation means. If the contact state is maintained, the process returns to step S103, and if the contact state is not, the process proceeds to step S113.

  In step S113, the key selection unit 109 determines as an input key the candidate key that the external operation means has been in contact with immediately before the touch panel 101 enters the non-contact state. Next, in step S115, the display control unit 113 controls the touch panel 101 to return from the display state of the candidate keys spaced at step S109 to the original display state without spacing.

  As described above, according to the information input display device of the first embodiment, the candidate keys in the vicinity of the contact position on the touch panel 101 by the external operation means are in the same vertical direction as the vertical and horizontal lengths of the contact area and Displayed with horizontal spacing. In this way, since the candidate key is displayed on the touch panel 101 with an interval corresponding to the size of the contact area by the external operation means provided between the candidate keys, the contact by the external operation means is limited to one candidate key. Is done. As a result, the key selection unit 109 reliably selects the key intended by the user of the information input display device as the input key. Therefore, erroneous input can be prevented with high accuracy.

  Moreover, in this embodiment, since only some virtual keys displayed near the contact position on the touch panel 101 by the external operation means are displayed as candidate keys in the above-described form, in the limited display area of the touch panel 101 Candidate keys provided with the interval can be displayed.

  Furthermore, in this embodiment, since the interval between adjacent candidate keys is determined at the time of contact by an external operation means, even if the user of the information input display device of this embodiment changes, it is possible to prevent erroneous input with high accuracy. A short interval is set between candidate keys.

(Second Embodiment)
FIG. 6 is a block diagram illustrating an information input display device according to the second embodiment. The information input display device of the second embodiment includes a contact time measurement unit 201 in addition to the components included in the information input display device of the first embodiment. Note that the display control unit 213 according to the present embodiment further performs the operation described below in accordance with the signal input from the contact time measurement unit 201. Except for this point, the second embodiment is the same as the first embodiment. In FIG.

  The contact time measuring unit 201 measures the continuous contact time with the touch panel 101 by the external operation means based on the signal output from the touch panel 101. The display control unit 213 according to the present embodiment controls the touch panel 101 so that the candidate keys selected by the candidate key selection unit 111 are enlarged and displayed according to the continuous contact time measured by the contact time measurement unit 201.

  7 and 8 are diagrams illustrating a display example of the touch panel 101 when the vicinity of the upper left key of the plurality of keys displayed on the touch panel 101 is continuously touched with a finger. As shown in FIG. 7A and FIG. 8A, the size of each candidate key immediately after the finger touches the touch panel 101 and the candidate key is displayed has a vertical length of X1 and a horizontal length. Is a rectangle of Y1. Thereafter, when the finger continues to touch the same position on the touch panel 101, the display control unit 213 is proportional to the continuous contact time, as shown in FIGS. 7 (b) (c) and 8 (b) (c). The touch panel 101 is controlled so that each candidate key is enlarged and displayed while maintaining the aspect ratio. Note that a maximum value for enlarging and displaying each candidate key may be set.

  FIG. 9 is a flowchart showing the operation of the information input display device of the second embodiment. As shown in FIG. 9, in the second embodiment, step S201 is performed between step S101 and step S103 in the flowchart shown in FIG. In step S201, the contact time measuring unit 201 starts measuring the continuous contact time by the external operation means.

  In this embodiment, as shown in FIG. 9, step S209 is performed instead of step S109 in the flowchart shown in FIG. In step S209, the display control unit 213 leaves the same vertical interval as the vertical length of the contact area and the same horizontal interval as the horizontal length of the contact area, and the size according to the continuous contact time. The touch panel 101 is controlled to display the candidate key. Except for steps S201 and S209, the process is the same as that of the first embodiment shown in FIG.

  As described above, according to the information input display device of the second embodiment, the candidate keys are enlarged and displayed on the touch panel 101 as the continuous contact time with the touch panel 101 by the external operation unit becomes longer. For this reason, the user of the information input display device can reliably select the intended key. Therefore, erroneous input can be prevented with higher accuracy.

(Third embodiment)
FIG. 10 is a block diagram illustrating an information input display device according to the third embodiment. The information input display device of the third embodiment includes a memory 301 in addition to the components included in the information input display device of the first embodiment. The memory 301 stores data on the length and width of the contact area measured by the contact size measuring unit 105 over the contact time with the touch panel 101 by the external operation means.

  The display control unit 313 according to the present embodiment has the same vertical interval as the maximum vertical length of the contact area stored in the memory 301 and the horizontal length of the contact area stored in the memory 301. The touch panel 101 is controlled to display candidate keys with the same horizontal interval as the maximum value of. Except for this point, the second embodiment is the same as the first embodiment. In FIG. 10, the same reference numerals are given to the components common to FIG. 1.

  According to the information input display device of the third embodiment, even if there is a change in the size of the contact area, each candidate key is displayed on the touch panel at intervals corresponding to the vertical and horizontal maximum values during contact. Therefore, the user of the information input display device can reliably select the intended key even in a situation where the strength of contact with the external operation means with respect to the touch panel 101 occurs. Therefore, erroneous input can be prevented with higher accuracy.

(Fourth embodiment)
FIG. 11 is a block diagram illustrating an information input display device according to the fourth embodiment. The information input display device according to the fourth embodiment includes a memory 401 in addition to the components included in the information input display device according to the first embodiment. The memory 401 stores the data of the contact position detected by the contact position detection unit 103 and the lengths of the contact area measured by the contact size measurement unit 105 over the contact time with the touch panel 101 by the external operation unit. This data is stored.

  As shown in FIG. 12, the display control unit 413 according to the present embodiment generates a combined contact area based on the contact position and the contact area stored in the memory 401 and has the same vertical direction as the vertical length of the combined contact area. The touch panel 101 is controlled so that candidate keys are displayed with an interval in the horizontal direction and the same horizontal interval as the horizontal length of the composite contact area.

  According to the information input display device of the fourth embodiment, when there is a contact blurring by the external operation means on the touch panel 101, each candidate key is displayed on the touch panel at intervals corresponding to the magnitude of the shaking. Therefore, the user of the information input display device can reliably select the intended key even in a situation where blurring occurs. Therefore, erroneous input can be prevented with higher accuracy.

  The display control device according to the present invention is useful as a control device or the like that controls the display of a virtual key so that erroneous input can be prevented when inputting information using a virtual key displayed on a display unit capable of detecting contact.

The block diagram which shows the information input display apparatus of 1st Embodiment The figure which shows an example of each length of the contact area measured by the contact size measurement part 105 vertically and horizontally The figure which shows the example of a display of the touch panel 101 when the vicinity of the upper left key is touched with the finger among the some keys displayed on the touch panel 101. The figure which shows the example of a display of the touch panel 101 when the vicinity of the upper left key is touched with the finger among the some keys displayed on the touch panel 101. The flowchart which shows operation | movement of the information input display apparatus of 1st Embodiment. The block diagram which shows the information input display apparatus of 2nd Embodiment The figure which shows the example of a display of the touch panel 101 when the upper left key vicinity is continuously touched with the finger among the some keys displayed on the touch panel 101. The figure which shows the example of a display of the touch panel 101 when the upper left key vicinity is continuously touched with the finger among the some keys displayed on the touch panel 101. The flowchart which shows operation | movement of the information input display apparatus of 2nd Embodiment. The block diagram which shows the information input display apparatus of 3rd Embodiment The block diagram which shows the information input display apparatus of 4th Embodiment The figure which shows the synthetic | combination contact area produced | generated based on the contact position and contact area which were stored in the memory 401 The figure which shows the example of an arrangement | positioning change of the button displayed on a display apparatus by the display control apparatus of patent document 1 The figure which shows the key displayed on a touchscreen by the information terminal device of patent document 2, and its enlarged display example

DESCRIPTION OF SYMBOLS 101 Touch panel 103 Contact position detection part 105 Contact size measurement part 107,207,307,407 Control part 109 Key selection part 111 Candidate key selection part 113,213,313,413 Display control part 201 Contact time measurement part 301,401 Memory

Claims (5)

A display control device that controls display of virtual keys displayed on a display unit capable of detecting contact,
A contact position detection unit for detecting a contact position by an external operation means on the display unit;
A candidate key selection unit that determines a predetermined area based on the contact position and selects a virtual key overlapping the predetermined area as a candidate key;
A contact size measuring unit that measures the vertical or horizontal length of the contact area on the display unit by the external operation means;
A display control unit for controlling the display unit to display the candidate key with a vertical or horizontal interval equal to or greater than the vertical or horizontal length of the contact area measured by the contact size measurement unit;
A display control device. The display control device according to claim 1,
A contact time measuring unit for measuring a continuous contact time with the display unit by the external operation means;
The display control unit controls the display unit so that the size of the candidate key is enlarged and displayed according to the continuous contact time measured by the contact time measurement unit. The display control apparatus according to claim 1 or 2,
A first storage unit that stores information on the length or width of the contact region measured by the contact size measurement unit over the contact time with the display unit by the external operation unit;
The display control unit displays the candidate keys with a vertical or horizontal interval equal to or greater than the maximum vertical or horizontal length of the contact area in the information stored in the first storage unit. A display control apparatus for controlling the display unit. The display control apparatus according to claim 1 or 2,
Stores the contact position detected by the contact position detector and the length or width information of the contact area measured by the contact size measuring unit over the contact time with the display unit by the external operation means. A second storage unit
The display control unit measures the vertical or horizontal length of the combined contact region obtained based on the contact position and the contact region stored in the second storage unit, and the vertical or horizontal length of the combined contact region. A display control apparatus, wherein the candidate keys are displayed with the vertical or horizontal intervals as described above. The display control device according to any one of claims 1 to 4,
The display control apparatus, wherein the candidate key selection unit selects a virtual key included in the predetermined area as the candidate key.

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