JP2012008722A - Character display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a character display device which displays a character based on an operation concerned with a character input and can correct and display a character by simple and easy operation.SOLUTION: A character display device 1 includes: a contact detection part 20 which detects a contact; a display part 30 which displays a character; a control part 10 which selects characters belonging to a predetermined character group in a predetermined order and controls a display part 30 so as to display the selected characters when a position of a contact passes a line corresponding to the predetermined character group. The control part 10 selects characters belonging to a predetermined character group in an order reverse to the predetermined order and controls the display part 30 so as to display the selected characters when the position of the contact is parallel to the line in a predetermined direction.

Description

  The present invention relates to a character display device. In particular, the present invention relates to a character display device that displays characters based on operations related to character input.

  Currently, in daily life, when an operator operates various electric products (such as household appliances), there is a scene where an operation related to character input is performed on a terminal. In particular, when an operator performs an operation related to character input using a small terminal such as a mobile phone, an operation method called “multi-tap” is often employed.

  Multi-tap is, for example, each numeric key on the numeric keypad and each line of hiragana (for example, “A line (= A, I, U, E, O)” or “Ka line (= Ka, Ki, Ku, Ke, This is a method of allocating a plurality of characters such as “)” and receiving an operator's press on these keys. A character display device adopting this method accepts the operator's multiple presses on the same key, and sequentially selects and displays a plurality of characters assigned to each key according to the number of presses. To do.

  That is, for example, when the operator depresses the “A line” key once, “A” is displayed, and when the operator depresses twice, “A” changes to “I”, and when it is three consecutive times The display changes as “A” → “I” → “U”. As described above, when the operator continuously presses the same key, the next character is selected and displayed in order each time the key is pressed. This multi-tap input method is sometimes referred to as “spinning” or “toggle”, but is referred to as “multi-tap” in the present application.

  Since this multi-tap is an intuitive and very easy-to-understand operation required by the operator, it is currently used in most mobile phones. However, this multi-tap has a drawback that the number of times the operator depresses the key when performing an operation related to character input from the viewpoint of the number of times the key is depressed.

  By the way, in recent years, an input unit of a mobile terminal such as a mobile phone is rapidly increasing that includes a touch panel. In many cases, the touch panel includes a touch sensor that detects contact with an operator's finger or the like on the front surface of a display unit such as a liquid crystal display. Therefore, in such a touch panel, a keyboard, a button, or the like is displayed on the display unit, and contact with an operator's finger or stylus directly with respect to the display position is received.

  An input device that employs a touch panel can make an operation required by an operator extremely intuitive and easy to understand. Therefore, operability can be improved by such an input device. Also, a terminal that employs a touch panel displays a keyboard, buttons, and the like on the display unit as images when accepting an operation by the operator. For this reason, unlike a mechanical key, a user interface can be freely configured according to a mode of receiving an operation by an operator. Under such circumstances, terminal devices adopting a touch panel are not limited to mobile phones in recent years, and have spread widely, including digital cameras, digital audio players, and portable game machines.

  Even in a mobile terminal such as a mobile phone having a touch panel, the above-described multi-tap is often adopted as a method for performing an operation related to character input. As described above, in the multi-tap method, the number of times that the operator has to touch the keys when performing operations related to character input is extremely large. In particular, when an unintended character is displayed due to an operation error, it is necessary to delete the character with the operation error and perform the operation again, so the number of times that the operator has to touch the key in a series of operations is further increased. There are concerns about the increase. This is considered to be a considerable effort and burden for the operator. In addition, the fact that the operator takes time and effort when performing the touch operation requires a corresponding time to perform such an operation.

  Thus, a character display device has been proposed that can reduce the number of touch operations and reduce operation errors when performing operations corresponding to the multi-tap method using a touch panel (for example, Patent Documents). 1).

  The character display device described in Patent Literature 1 accepts not only a normal touch operation but also a slide operation for performing a drag operation (tracing operation) on the touch panel when accepting an operator's operation on the touch panel. . In this character display device, the touch panel detects contact with an operator's finger or the like who performs a slide operation, and performs processing corresponding to the multi-tap method according to the number of times the contact position trajectory is folded.

  FIG. 12 is a schematic diagram for explaining the operation of the character display device described in Patent Document 1.

  A character display device 100 illustrated in FIG. 12 includes a contact detection unit 200 and a display unit 300 that displays a result of an operation received by the contact detection unit 200. The contact detection unit 200 includes a touch panel, and a key group 400 in which each row of hiragana is associated with each numeric key of the numeric keypad is displayed on the contact detection unit 200. The contact detection unit 200 detects the contact of the operator's finger, that is, the presence / absence of the touch operation by the operator and the position of the contact. When the contact detection unit 200 detects contact with an operator's finger or the like, the control unit (not shown) of the character display device 100 responds to the coordinates based on the coordinates of the position where the contact detection unit 200 detected contact. The “line” (a line, ka line, sa line, etc.) of one kana character to be determined is determined.

  Further, the control unit (not shown) of the character display device 100 records the coordinates of the contact position detected by the contact detection unit 200 in the buffer, and whether there is a “turnback” in the locus where the coordinates are connected in the order of recording. Determine whether or not. Here, “turning back” is detected by the contact detection unit 200 by changing the angle of the direction of the drag operation while the operator is dragging while touching the contact detection unit 200. This is an operation in which the angle formed by the locus of the coordinates of the contact position is changed more than a predetermined value.

  The character display device 100 determines a character group (“line” of hiragana) corresponding to the key at the position based on the first touch operation on the contact detection unit 200. Thereafter, the character display device 100 sequentially changes and displays the characters belonging to the character group each time a return is determined while the first contact is detected. This character group includes the hiragana characters of each “line”.

  For example, as shown in FIG. 12, when contact with the key in the “ta” row in the key group 400 is detected, the character group in the “ta” row is determined. The character group of the “ta” line includes kana characters “ta, chi, tsu, te, and”. When contact with the key in the “ta” line is first detected, the character display device 100 displays the character “ta”, which is the first character included in the determined character group (“ta” line), on the display unit 300. To display. Thereafter, each time the touch operation is determined to be “wrapping”, the character display device 100 sequentially changes the characters in this character group in the order of “chi” → “tsu” → “te” → “to”. It is displayed on the display unit 300.

  FIG. 12 shows a state in which contact is detected by the key in the “ta” row of the key group 400 after the character “Tokyo” is input, and the contact detection unit 200 performs the wrapping four times as it is. Yes. The broken line shown on the contact detection unit 200 in FIG. 12 is shown by a solid line so that the locus caused by the return of the touch operation of the operator can be recognized. In FIG. 12, after the character “Tokyo”, the character “ta” by the first contact is first displayed on the display unit 300, and thereafter, the display of the character sequentially changes every time it is determined that the touch operation is turned back. , The character “to” is currently displayed. When the desired character is displayed on the display unit 300, the operator releases the contact with the contact detection unit 200 (that is, releases the finger from the contact detection unit 200), thereby confirming the displayed character as the input character.

  As described above, according to the character display device described in Patent Literature 1, when performing an operation of inputting each character, any character can perform an operation related to character input by sliding one touch operation in principle. Can do. Therefore, this character display device can considerably reduce the number of times that the operator has to press the key when performing the character input operation.

  Further, according to this character display device, after the character group is determined by the first touch operation, the operator can then perform a slide operation at an arbitrary position of the contact detection unit 200. Therefore, the operator can perform an operation without gazing at the contact detection unit 200 after touching an accurate position without making even the first touch operation. Therefore, if the operator looks at the input part only at the time of the first touch operation to determine the character group (that is, “line”), then the operator looks at only the display part on which the input result is displayed. There is almost no risk of operating errors.

JP 2008-269456 A

  The character display device described in Patent Document 1 determines the above-described “folding” based on an angle formed by the locus of coordinates of the position of the contact detected by the contact detection unit 200. In the determination of “turnback”, first, an angle θ1 formed by three contact coordinates that are temporally continuous is calculated. For example, when the coordinates of the contact detected by the input unit at a predetermined time interval are in the order of point a → point b → point c, the angle formed by the side ab and the side bc with the point b as the vertex is θ1.

  Furthermore, the character display device described in Patent Document 1 takes measures to deal with contact that can be regarded as noise, such as subtle blurring of the detected locus. That is, in the determination of the return, the angle θ2 formed by the contact coordinates of the points before and after the three points described above is also calculated. For example, when the detection of the contact coordinates described above includes the points before and after that, in the order of the point z → the point a → the point b → the point c → the point d, the side zb and the side bd are set with the point b as the vertex. The formed angle is θ2.

  When θ1 and θ2 calculated in this way are both equal to or smaller than a predetermined angle θ0 (for example, 90 degrees), it is determined as “turning back”. When folding is determined according to this criterion, the character display device described in Patent Document 1 performs processing corresponding to multi-tap.

  However, since the character display device described in Patent Document 1 uses the angle to determine the return, if the slide operation with a predetermined angle or less is not accurately performed, the contact locus is not determined to be the return. For example, even if the operator intends to perform a folding slide operation with a sharp angle, but the locus actually detected by the input unit is a curved line (when viewed in detail), the operator's intention is No input is made. In particular, when the operator performs a quick slide operation, the trajectory detected by the input unit tends to turn back at a sharp angle, but conversely, when the operator performs a slow slide operation carefully, the input unit detects it. The trajectory is easily curved.

  In addition, the operation when the operator performs a touch operation has very large individual differences. Therefore, it can be considered that there is a considerable individual difference for each operator in the angle at which the operator turns back with a natural motion. In the character display device described in Patent Document 1, when an operator feels that the determination of folding does not match his own slide operation method, the degree of folding must be adjusted for each operator. Such an adjustment is troublesome for an operator who feels resistance in handling an electric product or the like.

  When the character display device is a small terminal, the operator often operates the terminal while moving or performing other operations. In such a case, since the operator often cannot concentrate on the slide operation on the terminal, it is not always possible to perform an accurate operation as intended. In particular, in the case of a character display device operated by an infant or an elderly person, or in the case of a character display device used in the medical field, for example, which is assumed to be operated by a physically handicapped person, an accurate slide operation to the operator It is difficult to request.

  Accordingly, the applicant of the present application has invented a character input device that can improve the accuracy of determination of a slide operation performed by the operator on the touch panel, and has already filed a patent application with the Japan Patent Office (Japanese Patent Application No. 2009- 128195).

  The character input device according to the earlier application defines a character feed line on the input unit (touch sensor), and performs the above-described multi-tap process when it is determined that the operator's slide input has passed this line. . In other words, this character input device displays, for example, the character “A” in response to the first touch operation, and when the contact by the operator's slide operation is maintained, the position of the contact indicates the character feed line. Each time a passage is detected, the character “a” is changed and displayed in the order of “I”, “U”, “E”, and the like. As described above, in this character input device, when the operator performs a slide operation on the touch sensor, the contact position only passes through the character feed line regardless of the angle at which the slide operation is turned back. For example, it is accepted as an operation related to character input. Therefore, this character input device can reliably accept an operation related to character input and perform a corresponding process without requiring a strict operation from the operator.

  However, the application does not particularly disclose a countermeasure when an operator makes an operation mistake while performing an operation related to character input on the character input device. In other words, when the operator performs a slide operation on the touch sensor, the slide operation is excessively performed, and therefore, how to deal with a case where a character ahead of the character that the operator wants to display is displayed. Is a problem. For example, when the operator wants to display the character “U” of “A line”, after performing the touch operation on the key to display the character “A”, the character feeding line is moved twice by the slide operation. Where it should pass, it is assumed that it will pass three times by mistake and change the character “I” → “U” → “E”.

  When such an operation mistake is made, the operator usually deletes the character displayed based on the operation mistake by an operation such as a “clear” key and then performs an operation related to character input in order to display a correct character. It is common to start over. However, in the above-mentioned application, one of the main purposes is to reduce the trouble of having to operate the key many times. Therefore, it is desirable that an operation for correcting such an operation error can be performed with as few procedures as possible.

  In particular, small mobile terminals such as mobile phones are often operated while being carried around by the operator or performing other actions, and therefore, operation errors occur compared to large input terminals. It is assumed that the frequency of performing will also increase. Therefore, in such a character input device, it can be said that a measure for easily correcting an operation error as described above is extremely useful.

  Accordingly, an object of the present invention made in view of such circumstances is a character display device that displays characters based on an operation related to character input, and can display characters after correcting and displaying them by a simple and easy operation. Is to provide.

The invention of the character display device according to the first aspect of achieving the above object,
A contact detector for detecting contact;
A display unit for displaying characters;
When the contact position detected by the contact detection unit passes a line corresponding to a predetermined character group, characters belonging to the predetermined character group are selected in a predetermined order, and the selected character is displayed. A control unit for controlling the display unit;
In a character display device comprising:
When the position of the contact is parallel to the line in a predetermined direction, the control unit selects characters belonging to the predetermined character group in an order opposite to the predetermined order and displays the selected characters. The display unit is controlled as described above.

The invention according to a second aspect is the character display device according to the first aspect,
The control unit determines that the contact position is parallel to the line in a predetermined direction when the trajectory of the contact position has traveled a predetermined distance and the line form an angle of a predetermined value or less. is there.

The invention of the character display device according to the third aspect of achieving the above object is as follows:
A contact detector for detecting contact;
A display unit for displaying characters;
When the contact position detected by the contact detection unit passes through the first group line corresponding to the predetermined character group, the characters belonging to the predetermined character group are selected in a predetermined order, and the selected character is A control unit for controlling the display unit to display;
In a character display device comprising:
The control unit selects characters belonging to the predetermined character group in an order opposite to the predetermined order when the contact position passes through a second group line that is not parallel to the first group line. The display unit is controlled to display the selected character.

The invention according to a fourth aspect is the character display device according to the third aspect,
When the contact position passes through a second group line that is not parallel to the first group line in a predetermined direction, the control unit moves characters belonging to the predetermined character group in a reverse order to the predetermined order. The display unit is controlled so that the selected characters are displayed in order and the selected characters are displayed.

  According to the character display device of the present invention, not only the displayed characters can be sequentially changed, but also when the operation mistake is made, the displayed characters can be corrected by a simple method. .

It is a functional block diagram which shows schematic structure of the character display apparatus which concerns on 1st Embodiment. It is a figure which shows the example which displayed the line corresponding to the predetermined character group by 1st Embodiment. It is a figure explaining the example of the predetermined character group by 1st Embodiment. It is a figure explaining the other example of the predetermined character group by 1st Embodiment. It is a flowchart explaining the process which concerns on the character display operation | movement by 1st Embodiment. It is a figure explaining the example of the determination about the parallel in the predetermined direction by 1st Embodiment. It is a figure explaining the example of operation | movement of the character display apparatus by 1st Embodiment. It is a figure explaining the other example of operation | movement of the character display apparatus by 1st Embodiment. It is a figure which shows the example which displayed the 1st group line and the 2nd group line corresponding to the predetermined character group by 2nd Embodiment. It is a flowchart explaining the process which concerns on the character display operation | movement by 2nd Embodiment. It is a figure explaining the example of operation | movement of the character display apparatus by 2nd Embodiment. It is a figure explaining the operation | movement by the conventional character display apparatus.

  Embodiments of the present invention will be described below with reference to the drawings. In each of the following embodiments, as an example of the character display device of the present invention, a mobile terminal having a touch panel such as a mobile phone or a PDA will be described. However, the character display device of the present invention is not limited to a portable terminal, and can be applied to any terminal having a touch panel such as a bank ATM or a station ticket vending machine.

(First embodiment)
FIG. 1 is a functional block diagram showing a schematic configuration of the character display device according to the first embodiment of the present invention.

  As shown in FIG. 1, the character display device 1 according to the first embodiment includes a control unit 10, a contact detection unit 20, a display unit 30, and a storage unit 40. The control unit 10 controls the overall operation of the character display device 1. The control unit 10 includes a character selection unit 12.

  In the present embodiment, the contact detection unit 20 is configured by a sensor that can detect contact of an operator's finger or stylus, such as a touch panel or a touch sensor. The contact detection unit 20 may use any known method such as a resistance film method or a capacitance method. The operator performs an operation related to character input by touching the contact detection unit 20 using a pen-type input device such as a finger or a stylus. For example, in the case of a capacitance method, the touch detection unit 20 detects a change in electric charge at a position touched by the touch operation when a touch operation is performed with an operator's finger or the like, and the detection result is detected by the control unit 10. Output to. Based on this output, the control unit 10 can specify the position of the contact on the contact detection unit 20.

  In the present embodiment, display unit 30 is configured by a liquid crystal display, an organic EL display, or the like. The display unit 30 displays the character selected by the character selection unit 12 of the control unit 10. As will be described later, the display unit 30 also draws and displays objects such as keys and buttons when the operator performs a touch operation.

  In the present embodiment, the touch detection unit 20 and the display unit 30 form a touch panel by configuring the touch detection unit 20 with a transmissive member and placing it on the front surface of the display unit 30. Therefore, in the touch panel of the present embodiment, the display unit 30 draws and displays objects such as keys and buttons, and the operator touches the position of the contact detection unit 20 corresponding to the position of the object. Then, the control unit 10 performs a process associated with the touch-operated object in advance.

  The storage unit 40 stores various applications and various input information, and also functions as a work memory. In particular, in the present embodiment, the storage unit 40 stores fonts of various characters displayed on the display unit 30 in the character display device 1 in advance.

  Next, in the character display device according to the present embodiment, a line corresponding to a predetermined character group used when a touch operation by the operator is performed will be described.

  In the present embodiment, a “line” corresponding to a predetermined character group is displayed on the display unit 30 of the touch panel instead of or together with the numeric keys of the numeric keypad used for conventional character input. Here, the “predetermined character group” can be the same as the character group assigned to each key in the conventional multi-tap method. That is, in the present embodiment, each of the lines displayed on the display unit 30 can correspond to, for example, a character group in each line of Hiragana.

  FIG. 2 is a diagram showing some examples in which lines corresponding to character groups in each line of Hiragana are displayed on the display unit 30 of the touch panel. 2 (A) to 2 (D) all display lines corresponding to character groups that constitute the “line” of hiragana, such as “a line”, “ka line”, and “sa line”. 2A to 2D differ only in the design of the line corresponding to a predetermined character group, and the operation performed by the operator using these, and the character display device 1 based on the operation are shown. The processing is the same in all examples. These are only some examples of “lines corresponding to a predetermined character group”, and other various design lines can be assumed. In the present embodiment, this line is a reference for passing through the line when the operator performs a touch operation (hereinafter also referred to as “slide operation”) for moving the position of the contact on the contact detection unit 20. It is for. Accordingly, any form of line can be used as long as it can be such a reference. In this way, the line as described above is displayed on the display unit 30, and the contact detection unit 20 arranged on the front surface thereof detects the movement of the touch operation by the operator, that is, the contact by the slide operation.

  In the character display device 1 according to the present embodiment, when the contact position by the touch operation of the operator detected by the contact detection unit 20 passes the position corresponding to the above-described line displayed on the display unit 30, The same operation as when a key operation is performed in the multi-tap method is performed. That is, when the character display device 1 determines that the position of the contact detected by the contact detection unit 20 has passed a line corresponding to a predetermined character group, the character group corresponding to that line is determined according to the number of times it has passed. The characters belonging to are changed and displayed in order.

  Here, the contact position “passes through a line corresponding to a predetermined character group” means that the locus defined by the movement of the contact position passes through the line. That is, when it is detected that the position of contact has moved to a position other than that line after being detected on this line, or conversely, after the position of contact has been detected at a position other than this line, It means that it is detected by. In addition, when the line exists between two contact positions detected continuously at a predetermined time interval, the contact position “passes a line corresponding to a predetermined character group” It can also be. That is, from the viewpoint of the operation performed by the operator, such an operation means that an operator's finger or a pen-type input device such as a stylus performs an operation passing through the line.

  In the present embodiment, the example in which the lines as described above are displayed on the display unit 30 has been described. However, these lines are not necessarily displayed as long as they are defined corresponding to the contact detection unit 20. It is not necessary to display on the part 30. For example, the display unit 30 may display only “characters” selected as described above, and may not display “lines” corresponding to a predetermined character group. In this case, it is conceivable that the line corresponding to the predetermined character group is subjected to a process such as a printing process using a paint or the like on the contact detection unit 20, for example. If it does in this way, the contact detection part 20 does not necessarily need to be arrange | positioned on the display part 30, and may comprise a touch panel, and the contact detection part 20 and the display part 30 can also be arrange | positioned in a different location. 2A to 2D, an operator who is skilled in character input according to the present invention can know where the above-mentioned line is displayed without looking at the display unit 30. Conceivable. For this reason, even if the character display device 1 is in a state where the above-described line is not displayed on the display unit 30, the character display device 1 performs processing based on the detection of the contact detection unit 20 assuming that the line is displayed. May be.

  FIG. 3 is a diagram illustrating characters belonging to a predetermined character group that are selected when the position of contact passes through a line corresponding to the predetermined character group.

  In this embodiment, “selecting” the characters sequentially is based on the same idea as the conventional multi-tap method, depending on the number of times that the contact position has passed the line corresponding to the predetermined character group. This means that kana characters or the like to be changed and displayed sequentially are selected. Each “line” (“a line”, “ka line”, “sa line”, etc.) of the hiragana shown in FIG. 3 corresponds to each “line corresponding to a predetermined character group” shown in FIG. . In the present embodiment, these characters belonging to each “line” are referred to as “predetermined character group”. For example, the kana characters “Ta, Chi, Tsu, Te, and To” belong to the character group “Ta Line”. In the present embodiment, these characters, that is, a predetermined character group, are sequentially changed from the top to the bottom according to the number of times the contact position is determined to have passed the line. ” In the present embodiment, the storage unit 40 stores fonts of these characters, a predetermined order to be selected, and the like.

  For example, in the present embodiment, when the character display device 1 determines that the contact position detected by the contact detection unit 20 has passed the line corresponding to the character group of “Ta line” for the first time, ”Of the characters belonging to“ ”are selected and displayed with the first (first) character in the selection order. The character display device 1 belongs to the character group “Ta line” when it is determined that the contact position has passed through the line for the first time and then the contact position has been maintained for the second time. Characters are selected and displayed in a predetermined order. That is, in this case, the character display device 1 changes the displayed character to display the character “Chi” having the second selection order among the characters belonging to the character group “Ta line”. When the selection order of the characters belonging to each “line” character group reaches the last order, the next selection order when the predetermined order is followed may return to the first. For example, the character display device 1 determines that the contact position has passed through a line corresponding to the character group of “ka line” at the stage where the “ko” character at the end of the “ka” line is displayed on the display unit 30. In this case, among the characters belonging to the “ka line” character group, the first (first) “ka” character in the selection order is displayed. As described above, in the present embodiment, the character display device 1 adds characters belonging to a predetermined character group in a predetermined order according to the number of times that the contact position detected by the contact detection unit 20 passes the above-described line. Select and display.

  FIG. 4 is a diagram illustrating another example of characters belonging to the predetermined character group described in FIG. The character display device 1 according to the present embodiment can also assign letters such as English letters and numbers as the “predetermined character group” to the above-mentioned lines, as in the conventional multi-tap operation. When such a character is made to correspond to the above-mentioned line as a predetermined character group, for example, the line corresponding to the predetermined character group as shown in FIG. It is preferable to perform display. For example, in FIGS. 2A to 2D, characters such as “a”, “ka”, and “sa” are changed to characters such as “1”, “A”, and “D”, respectively. Is preferred.

  Next, a flow of processing for selecting and displaying characters according to the present embodiment will be described.

  FIG. 5 is a flowchart for explaining processing related to the character display operation according to the first embodiment. In the flowchart shown in FIG. 5, the process related to the character display operation according to the first embodiment is performed from the point in time when the contact detection unit 20 detects a contact when the operator starts a touch operation with his / her fingertip or stylus. Start.

  When the character display process according to the present embodiment is started, first, the control unit 10 determines whether or not the contact position detected by the contact detection unit 20 has passed a line corresponding to a predetermined character group (step). S11). If it is determined in step S11 that the contact position has passed the line corresponding to the predetermined character group, the control unit 10 has already selected the character corresponding to the line determined to have passed the contact position. It is determined whether it has been completed (step S12). Here, when the character corresponding to the line determined to have passed through the contact position has not been selected, the contact position has first passed through the line after the contact is detected by the contact detection unit 20. Is determined. In addition, when the line corresponding to the predetermined character group is first passed after the contact is detected by the contact detection unit 20, the contact position does not pass through the line before that time. The characters displayed on the display unit 30 after detection are not yet present.

  In step S12, when the character corresponding to the line determined to have passed through the contact position has not been selected, the character selecting unit 12 of the control unit 10 selects the first character among the characters belonging to the character group corresponding to the line. A character is selected (step S13). That is, if it is determined that the position of the contact has passed through a line corresponding to the character group “NA”, for example, the character “NA” at the beginning of the “NA” line is selected. If a character is selected in step S13, the control part 10 will display the selected character on the display part 30 (step S14).

  If a character is displayed in step S14, the control part 10 will determine whether the contact selection part 20 has still detected the contact (step S15). When the contact selection unit 20 no longer detects contact in step S15, the control unit 10 determines that the touch operation of the operator has been released, and ends the process related to the character display operation for the time being. However, if the contact selection unit 20 still detects contact in step S15, the control unit 10 determines that the touch operation of the operator is still continued, returns to step S11, and continues the process.

  On the other hand, if the character corresponding to the line determined to have passed through the contact position has already been selected in step S12, the character selecting unit 12 proceeds to step S16 and performs processing. Here, when the character corresponding to the line determined to have passed through the contact position has already been selected, that is, after the contact is detected by the contact detection unit 20, the contact position indicates the line. It is a case where it is determined that the passage has not been made first (after the second time). In this case, there are characters that are already selected and displayed on the display unit 30.

  In step S <b> 16, the character selection unit 12 selects a character in the next order of the already selected and displayed characters from the character group to which the characters already selected and displayed on the display unit 30 belong. . For example, when the character already selected and displayed is “NA”, the next character “NI” is selected (see FIG. 3). If a character is selected in step S16, the control part 10 will display the selected character on the display part 30 (step S14), will transfer to step S15, and will continue the process mentioned above.

  Thus, according to the present embodiment, the operator performs a slide operation that passes through a line corresponding to a predetermined character group as shown in FIG. Can be selected and displayed very easily and reliably.

  On the other hand, if it is not determined in step S11 that the contact position has passed the line corresponding to the predetermined character group, the control unit 10 determines that the position of the contact is in any of the lines corresponding to the predetermined character group. It is determined whether or not parallel in a predetermined direction (step S17).

  Here, “the position of contact” is “parallel to the line in a predetermined direction” means that the position of the contact detected by the contact detection unit 20 corresponds to any of the lines corresponding to the predetermined character group. This means that a trajectory that is almost parallel is formed. For example, as shown in FIG. 6, when the trajectory defined by the movement of the contact position forms an angle of a predetermined value θ or less with respect to an arbitrary line among lines corresponding to a predetermined character group. In addition, it can be determined that the “contact position” is the “parallel to the line in a predetermined direction”. For the sake of simplification, FIG. 6 shows only “A line” among the lines corresponding to the predetermined character group shown in FIG.

  In this case, in order to determine that the contact position is parallel to some extent only, the control unit 10 determines that the locus where the contact position has traveled more than a predetermined distance a and the line have a predetermined value θ. When the following angles are formed, it is determined that the contact position is parallel to the line in a predetermined direction. When the contact detection unit 20 detects that the touch operation of the operator is shaken and the contact position has moved slightly in the vertical direction by such determination, the control unit 10 determines that “parallel” in step S17. An erroneous determination can be avoided. When the above-described locus is a curve, for example, a straight line connecting the starting point of the locus and a point that has traveled a predetermined distance a from the starting point is an angle that is equal to or less than a predetermined value θ with the line corresponding to the predetermined character group Is determined, the contact position is parallel to the line in a predetermined direction.

  In step S <b> 17, when the contact position is parallel to an arbitrary line among the lines corresponding to the predetermined character group in the predetermined direction, the character selection unit 12 selects the character already selected and displayed on the display unit 30. In the character group to which the character belongs, the character in the order in front of the character already selected and displayed is selected (step S18). For example, in the case where the character already selected and displayed is “SU”, “SH”, which is the character before the “SU” in the order, is selected (see FIG. 3). That is, the control unit 10 (character selection unit 12) selects characters belonging to a predetermined character group in an order opposite to the predetermined order when the contact position is parallel to the above-described line in a predetermined direction. The display unit 30 is controlled to display the selected character. If a character is selected in step S18, the control part 10 will display the selected character on the display part 30 (step S14), will transfer to step S15, and will continue the process mentioned above.

  If no character is displayed on the display unit 30 in step S17, the control unit 10 does not perform a specific process in step S18 since there is no character that should select the character in the previous order. In step S14, no character is displayed.

  As described above, according to the present embodiment, the character display device 1 performs the slide operation that passes the line corresponding to the predetermined character group, so that the character display device 1 can display the characters corresponding to the conventional multi-tap method. Selection and display can be performed. Further, even when an erroneous character is displayed due to an erroneous operation, the operator can make the correction very easily and easily. That is, the operator can display a normal character by performing a slide operation passing through the above-described line, and if an erroneous character is displayed due to an erroneous operation, the operator can The displayed characters can be corrected by performing a parallel slide operation.

  7-8 is a figure explaining operation | movement of the character display apparatus 1 by this Embodiment.

  7 to 8 show only “A line” of the lines corresponding to the predetermined character group shown in FIG. 2A for simplification. In this way, a line corresponding to a predetermined character group is displayed on the display unit 30 of the touch panel, and the touch detection unit 20 of the touch panel detects contact by the operator's touch operation and slide operation performed on this display. To do.

  In FIG. 7, each arrow indicates a trajectory defined by the operator's slide operation. In addition, a white circle mark (◯) shown in FIG. 7 indicates that the character is selected when it is determined that the position of the contact by the operator's slide operation has passed the line corresponding to the character group of the “A” line. And it is displayed. As described above, when it is determined that the position of the contact has passed the line corresponding to the predetermined character group, a display serving as a mark can be displayed on the display unit 30 so that the operator can recognize it. . Moreover, instead of such a display or together with such a display, the control unit 10 generates a sound or generates a vibration so that the contact position passes through a line corresponding to a predetermined character group. It is also possible to notify the operator that it has been determined. The kana characters in parentheses shown in FIG. 7 are shown for explaining the kana characters to be displayed at the place where the input characters are displayed on the display unit 30 in accordance with the determination that the line has been passed.

  In FIG. 7A, no character is displayed in a state in which contact by the touch operation of the operator is first detected by the contact detection unit 20 (a state where the operator touches the starting point of the arrow) (still a predetermined character group “ The passage of the line corresponding to “A row” has not been determined). As described above, it is assumed that the operator performs an operation of sliding the position of the contact along the arrow illustrated in FIG. 7A while the contact detection unit 20 detects the contact. If it is determined that the contact position has passed the line corresponding to “A”, the character display device 1 displays the character “A” on the display unit 30 for the first time at this time. When the contact by the operator's touch operation is no longer detected by the contact detection unit 20 in a state where the character “A” is displayed in this manner (that is, the operator moves at the end point of the arrow shown in FIG. 7A). When you stop touching), confirm the letter “A”.

  On the other hand, while the contact is maintained in the state shown in FIG. 7A, the direction of the locus defining the position of the contact by the slide operation is reversed as shown in FIG. ”Is passed. Thus, when it is determined that the position of the contact has passed the line again, the character display device 1 displays the character displayed on the display unit 30 at that time as shown in FIG. Change from “A” to “I”. When the contact by the operator's touch operation is no longer detected by the contact detection unit 20 in a state where the character “I” is displayed in this manner (that is, the operator moves at the end point of the arrow shown in FIG. 7B). When you stop touching), confirm the character “I”.

  On the other hand, while the contact is maintained in the state shown in FIG. 7B, as shown in FIG. 7C, the direction of the trajectory that defines the position of the contact by the slide operation is further reversed. ”Again. As described above, when it is determined that the position of the contact has further passed through the line, the character display device 1 displays the character currently displayed on the display unit 30 as “ Change from “I” to “U”. When the contact by the touch operation of the operator is no longer detected by the contact detection unit 20 in a state where the character “u” is displayed in this manner (that is, the operator moves at the end point of the arrow shown in FIG. 7C). When you stop touching), confirm the letter “u”.

  After this, every time it is determined that the trajectory defining the position of the contact has passed the line corresponding to “A line” while maintaining the contact, it belongs to the character group corresponding to “A line”. The characters are changed and displayed sequentially. As described above, after the last character in the character group is displayed, it is further determined that the trajectory defining the contact position has passed the line corresponding to “A”. Returning to the first sequence of characters belonging to the character group, the display that is sequentially changed is repeated.

  Thus, in the present embodiment, the control unit 10 determines the characters belonging to the predetermined character group according to the number of times that the contact position detected by the contact detection unit 20 passes the line corresponding to the predetermined character group. Are selected in a predetermined order, and the selected characters are displayed on the display unit 30. Therefore, when the operator performs an operation related to character input, the standard for performing the operation corresponding to the multi-tap method is whether or not the position of the contact passes a predetermined line. The locus in the middle of the position is not a problem. Therefore, for example, as shown in FIG. 7 (D), the operator performs contact that changes the direction of the slide operation at a very loose angle, or draws a circle as shown in FIG. 7 (E). Even if the operation of sliding the position is performed, the operation corresponding to the multi-tap method is performed accurately. For example, as shown in FIG. 7F, the same result is output even if the position of the contact passes through the line in the direction opposite to that in FIG. 7B.

  While performing an operation related to character input in this way, for example, an operator mistakenly performs a slide operation, and passes a line whose contact position corresponds to a predetermined character group more times than planned. Cases are also envisaged. When the number of times of passing the contact position through the line corresponding to the predetermined character group is insufficient, the operator may further perform an operation of passing the contact position through the line. However, there is a problem if the number of times the contact position passes through the line corresponding to the predetermined character group is increased. Even in such a case, the character display device 1 according to the present embodiment can be corrected very easily and easily.

  FIG. 8 is a diagram for explaining an operation related to the correction of characters by the character display device 1 and a corresponding operation. 7 as well as FIG. 7, the kana characters in parentheses are shown for explaining the kana characters to be displayed at the place where the input characters are displayed on the display unit 30.

  In FIGS. 8A to 8C, the operator erroneously sets the contact position to 2 even though he / she tried to perform a sliding operation that passes once through the line corresponding to the character group of the “A” line. This section explains the corrections that should be made when a slide operation that passes once is performed. In this case, the operator performs a slide operation in which the contact position passes through the line corresponding to the character group of the “a” line once to display the character “I”. Since the operation has been performed, the character “u” is displayed on the display unit 30.

  In such a case, the operator performs a slide operation in which a contact position is parallel to a line corresponding to a predetermined character group in a predetermined direction. In response to such an operation, when it is determined that the position of the contact detected by the contact detection unit 20 is parallel to the line in a predetermined direction, the character display device 1 displays a character belonging to the predetermined character group as a normal character. Selection is made in the reverse order of the order and the result is displayed on the display unit 30. In this case, since the character “u” was originally displayed on the display unit 30, the characters in the character group “a” line to which the character “u” belongs are changed from “u” to “i” in the reverse order. ”In the order of“ ”and displayed on the display unit 30 instead of the originally displayed character“ U ”.

  FIG. 8A shows the state where the character “u” is displayed on the display unit 30, and the operator places the contact position on the line corresponding to the character group of the “a” line in the upward direction from the bottom. This shows a state in which the character “U” is corrected to the character “I” by performing the parallel slide operation. As described above, when the contact position is “parallel” to the line in a predetermined direction, the trajectory defined by the movement of the contact position is an arbitrary line among lines corresponding to a predetermined character group. On the other hand, it can be made a condition that the angle is equal to or smaller than a predetermined value θ. Therefore, the movement of the position of the contact is not necessarily strict “parallel” as shown in FIG. 8A, for example, it is curved as shown in FIG. 8B, or FIG. Even if the movement is from the top to the bottom as in (), the character can be corrected by determining that it is “parallel” that satisfies the above condition.

  In FIG. 8D, the operator erroneously passes five times even though the operator tried to perform a slide operation that passes three times through the line corresponding to the character group in the “A” line. Describes the corrections that should be made if an operation has been performed. In this case, the operator performs a slide operation in which the contact position passes the line corresponding to the character group of the “a” line three times to display the character “u”. Since the operation has been performed, the character “o” is displayed on the display unit 30.

  In such a case, the operator performs a slide operation that causes the contact position to be parallel to the line corresponding to the predetermined character group in the predetermined direction twice. In response to such an operation, when it is determined that the contact position detected by the contact detection unit 20 is parallel to the line twice in a predetermined direction, the character display device 1 selects characters belonging to the predetermined character group. Two selections are made in the reverse order of the normal order and displayed on the display unit 30. In this case, since the character “o” was originally displayed on the display unit 30, the characters in the character group “a” line to which the character “o” belongs are changed from “o” to “e” in the reverse order. ”, And“ e ”to“ u ”, and are displayed on the display unit 30 in place of the originally displayed characters. In this state, when the operator further performs a slide operation in which the contact position is parallel to the line in a predetermined direction, as shown in FIG. It is corrected to the character.

  For example, when correcting the characters in the “A” line, the character display device 1 performs “sliding operation in which the position of the contact is parallel to the line corresponding to the character group in the“ A ”line. Correct the characters in the “A” line. However, for example, even in the case of correcting the characters on the “a” line, the operator can touch any line among the lines corresponding to the character group on the other line, that is, the line corresponding to the predetermined character group. The character display device 1 may correct the characters in the “A” line by performing a slide operation in which the positions are parallel. Further, when determining that the position of the contact is parallel to the line corresponding to the predetermined character group, only when there is a parallel movement within a predetermined distance from the line corresponding to the predetermined character group, It is also possible to add a condition such as a character correction process according to the present embodiment.

  As described above, according to the character display device 1 of the present embodiment, the operator can easily and surely select and display characters corresponding to the conventional multi-tap method, and even when an erroneous operation is performed. The displayed characters can be corrected very easily and easily.

(Second Embodiment)
Next, a character display device according to a second embodiment of the present invention will be described.

  The character display device according to the second embodiment changes the operation and processing of the control unit 10 in the character display device 1 according to the first embodiment described above. Therefore, since the character display device according to the second embodiment can be implemented by the same configuration as the character display device 1 described in the first embodiment, the same description as in the first embodiment described above is appropriately applied. Omitted.

  In the second embodiment, the “line corresponding to the predetermined character group” described in the first embodiment is referred to as a “first group line” for convenience. In addition to the first group line, in the second embodiment, a “second group line” is further defined. In the second embodiment, when the contact position passes through the second group of lines, the same character correction as described in the first embodiment is performed.

  FIG. 9 is a diagram showing some examples in which a first group of lines (lines corresponding to character groups in each line of Hiragana) and a second group of lines are displayed on the display unit 30 of the touch panel. FIGS. 9A to 9D are obtained by adding a second group of lines to FIGS. 2A to 2D described above. These are merely examples of the first group line and the second group line, and various other design lines can be assumed. In each of FIGS. 9A to 9D, a vertical solid line that is a line corresponding to a character group that constitutes a “line” of hiragana, such as “a line”, “ka line”, “sa line”, etc. Indicates a “line of the first group”. Further, in each of FIGS. 9A to 9D, a horizontal broken line defined to be orthogonal to these first group lines indicates a “second group line”. The first group line and the second group line are not necessarily displayed on the display unit 30.

  In the present embodiment, the second group of lines is used as a reference for passing the line when the operator performs a slide operation for moving the position of the contact on the contact detection unit 20. . Accordingly, any form of line can be used as long as it can be such a reference. In this way, the line as described above is displayed on the display unit 30, and the contact detection unit 20 arranged on the front surface thereof detects the movement of the touch operation by the operator, that is, the contact by the slide operation. In addition, in FIG. 9, although the line of the 1st group and the line of the 2nd group are shown orthogonally, it is not an essential requirement that these are orthogonal, and if it is not parallel Any design can be used.

  Next, a flow of processing for selecting and displaying characters according to the present embodiment will be described.

  FIG. 10 is a flowchart for explaining processing relating to a character display operation according to the second embodiment. The process shown in FIG. 10 mainly changes the process of step S11 and step S17 in the flowchart demonstrated in FIG. Therefore, the overlapping contents in other descriptions are omitted as appropriate. In the flowchart shown in FIG. 10, the process related to the character display operation according to the second embodiment is performed from the point in time when the contact detection unit 20 detects a contact when the operator starts a touch operation with his / her fingertip or stylus. Start.

  When the character display process according to the present embodiment is started, first, the control unit 10 determines whether or not the contact position detected by the contact detection unit 20 has passed the first group line corresponding to the predetermined character group. Determination is made (step S21). When it is determined in step S21 that the contact position has passed the first group line corresponding to the predetermined character group, the control unit 10 performs the processing in step S12 and subsequent steps in the same manner as in the first embodiment. Do. That is, also in the second embodiment, the same processing as in the first embodiment is performed for the processing when the contact position passes the line corresponding to the predetermined character group.

  On the other hand, when it is not determined in step S21 that the contact position has passed the first group line corresponding to the predetermined character group, the control unit 10 has passed the second group line described above. It is determined whether or not (step S22).

  Here, “the position of contact” has passed “the second group of lines” means that the locus formed by the position of the contact detected by the contact detection unit 20 is an arbitrary one of the lines of the second group described above. Means to go through. For example, as shown in FIG. 11, the trajectory defined by the movement of the contact position is an arbitrary line of the second group of lines that is not parallel to the first group of lines corresponding to the predetermined character group. It can be determined that it has passed. Therefore, the same effect can be obtained even if the contact position passes through the second group of lines at the “ka row” and “sa row” locations. Note that FIGS. 11A to 11C show only “A row” of the first group line and the second group line shown in FIG. 9A for simplification. ing.

  In step S22, when the contact position passes through any of the second group of lines, the character selection unit 12 selects the relevant character group to which the characters already selected and displayed on the display unit 30 belong. The characters in the order before the characters already selected and displayed are selected (step S18). For example, when the character already selected and displayed is “u”, “i”, which is the character before the order “u”, is selected (see FIG. 3). That is, when the contact position passes through the second group line, the control unit 10 (character selection unit 12) selects characters belonging to the predetermined character group in the reverse order to the predetermined order, and the selection is performed. The display unit 30 is controlled so that the displayed characters are displayed. If a character is selected in step S18, the control part 10 will display the selected character on the display part 30 (step S14), will transfer to step S15, and will continue the process mentioned above.

  On the other hand, if it is not determined in step S22 that the contact position has passed any of the second group of lines, the control unit 10 returns to step S21 and continues the process. Other processes are performed in the same manner as described in the first embodiment.

  As described above, according to the present embodiment, when an operator performs a slide operation to select and display characters corresponding to the conventional multi-tap method, an erroneous character is displayed due to an erroneous operation. However, the correction can be performed very simply, easily and reliably. That is, the operator can display a normal character by performing a slide operation passing through the first group of lines, and if an erroneous character is displayed due to an erroneous operation, the operator can display the second group. The displayed character can be corrected by performing a slide operation passing through the line.

  FIG. 11 is a diagram for explaining operations and corresponding operations related to the correction of characters by the character display device 1 according to the second embodiment.

  FIG. 11 shows only a part of lines corresponding to the predetermined character group shown in FIG. 9A for simplification. Various symbols and the like have the same meaning as described in FIG. 7 and FIG. Thus, the first group of lines corresponding to the predetermined character group and the second group of lines are further displayed on the display unit 30 of the touch panel, and the operator's touch operation and slide performed on this display are performed. The contact detection unit 20 of the touch panel detects contact by operation.

  In FIGS. 11A and 11B, the operator is trying to perform a slide operation in which the contact position passes once through the first group line corresponding to the character group in the “A” line. This explains the correction that should be made when a slide operation that passes twice by mistake is performed. In this case, the operator performs a slide operation in which the contact position passes through the line corresponding to the character group of the “a” line once to display the character “I”. Since the operation has been performed, the character “u” is displayed on the display unit 30.

  In such a case, the operator performs a slide operation such that the contact position passes through the second group of lines indicated by the broken line in FIG. In response to such an operation, when it is determined that the position of the contact detected by the contact detection unit 20 has passed the second group line, the character display device 1 displays the characters belonging to the predetermined character group in a normal order. Are selected in the reverse order and displayed on the display unit 30. In this case, since the character “u” was originally displayed on the display unit 30, the characters in the character group “a” line to which the character “u” belongs are changed from “u” to “i” in the reverse order. ”In the order of“ ”and displayed on the display unit 30 instead of the originally displayed character“ U ”.

  FIG. 11A shows a state in which the character “u” is displayed on the display unit 30 and the operator performs a sliding operation so that the contact position passes through the second group line from the bottom to the top. This shows that the character “u” has been corrected to the character “i”. As described above, in the present embodiment, when it is determined that the contact position has passed the second group line, the character is corrected. Therefore, the movement of the contact position is not related to the angle formed by the locus, and the character is corrected even when passing through the second group line obliquely as shown in FIG. 11B, for example. .

  In FIG. 11 (C), the operator erroneously passes the slide five times even though he / she tried to perform a slide operation that passes the line corresponding to the character group of the line “A” three times. Describes the corrections that should be made if an operation has been performed. In this case, the operator should perform a sliding operation in which the contact position passes through the first group of lines corresponding to the character group of the “A” line three times to display the character “U”. Since the slide operation has been performed, the character “O” is displayed on the display unit 30.

  In such a case, the operator performs a slide operation that passes through the second group of lines twice. In response to such an operation, when it is determined that the contact position detected by the contact detection unit 20 has passed the second group line twice, the character display device 1 displays the characters belonging to the predetermined character group. Two selections are made in the reverse order of the normal order and displayed on the display unit 30. In this case, since the character “o” was originally displayed on the display unit 30, the characters in the character group “a” line to which the character “o” belongs are changed from “o” to “e” in the reverse order. ”, And“ e ”to“ u ”, and are displayed on the display unit 30 in place of the originally displayed characters.

  For example, when correcting the characters in the “a” line, the operator performs a slide operation in which the contact position passes through the second group of lines not parallel to the first group of lines corresponding to the “a” line of characters. By performing the above, the character display device 1 corrects the characters in the “A” line. However, for example, even when correcting the characters in the “A” line, the operator touches any of the second group lines corresponding to the character groups in the other lines, that is, the second group lines. The character display device 1 may correct the characters in the “A” line by performing a slide operation to pass the position of “A”. Therefore, for example, in order to perform correction in the case shown in FIG. 11 (C), as shown in FIG. 11 (D), the operator straddles two or more of the second group of lines. Even if a slide operation is performed through which the contact position passes, the character display device 1 can perform the same correction as in FIG. FIG. 11D shows the state where the character “O” is displayed on the display unit 30 and the character “O” is corrected to “E” when the contact position first passes through the second group line. Then, when the contact position passes through the second group line, the character “e” is corrected to “u”.

  In the example described here, the direction in which the contact position passes through the second group line is not particularly defined. The manner in which the correction is performed has been described. However, with respect to this direction, the above-described processing relating to the correction of characters can be performed only when the contact position passes through the second group line in a predetermined direction. That is, in this case, the processing unit 10 assigns the characters belonging to the predetermined character group in the predetermined order only when the contact position passes through the second group line not parallel to the first group line in the predetermined direction. The display unit 30 is controlled to display the selected characters in the reverse order. Here, “when the second group line is passed in a predetermined direction” means, for example, as shown in FIGS. 11 (A) and 11 (B), the contact position is in the direction from the bottom to the top of the second group line. It means the case of passing. In such an example, even if the slide operation in the mode as shown in FIG. 11C is performed, it is not determined that the second group line has been passed twice, and from the bottom to the top direction. It is determined that the character has passed once, and characters are selected once in the reverse order of the normal order and displayed on the display unit 30. Naturally, the case where the contact position passes through the second group line from the top to the bottom may be defined as “when the second group line passes through in a predetermined direction”.

  As described above, according to the character display device 1 of the present embodiment, the operator can easily and surely select and display characters corresponding to the conventional multi-tap method, and even when an erroneous operation is performed. The displayed characters can be corrected extremely easily, easily and reliably.

  In addition, this invention is not limited only to each embodiment mentioned above, Many changes or deformation | transformation are possible. For example, in each of the above-described embodiments, for convenience of explanation, the control unit 10 is described as including the character selection unit 12, but each of these functional units is separately provided according to the configuration of the device embodying the present invention. Can also be configured. Moreover, according to the structure of the apparatus which embodies this invention, it can also be set as the structure which the control part 10 serves as the function of the character selection part 12. FIG.

  Moreover, in each embodiment mentioned above, when the character detected on the display part 30 is displayed, when the contact detection part 20 stops detecting a contact, the aspect which determines the said displayed character is set. It was assumed and explained. However, even if the contact detection unit 20 is still detecting contact, the displayed character can be confirmed after a predetermined time has elapsed.

DESCRIPTION OF SYMBOLS 1 Character display apparatus 10 Control part 12 Character selection part 20 Contact detection part 30 Display part 40 Memory | storage part

Claims (4)

A contact detector for detecting contact;
A display unit for displaying characters;
When the contact position detected by the contact detection unit passes a line corresponding to a predetermined character group, characters belonging to the predetermined character group are selected in a predetermined order, and the selected character is displayed. A control unit for controlling the display unit;
In a character display device comprising:
When the position of the contact is parallel to the line in a predetermined direction, the control unit selects characters belonging to the predetermined character group in an order opposite to the predetermined order and displays the selected characters. The character display device, wherein the display unit is controlled.   The control unit determines that the contact position is parallel to the line in a predetermined direction when the trajectory of the contact position travels a predetermined distance and the line forms an angle of a predetermined value or less. Item 12. A character display device according to Item 1. A contact detector for detecting contact;
A display unit for displaying characters;
When the contact position detected by the contact detection unit passes through the first group line corresponding to the predetermined character group, the characters belonging to the predetermined character group are selected in a predetermined order, and the selected character is A control unit for controlling the display unit to display;
In a character display device comprising:
The control unit selects characters belonging to the predetermined character group in an order opposite to the predetermined order when the contact position passes through a second group line that is not parallel to the first group line. The character display device controls the display unit to display the selected character.   When the contact position passes through a second group line that is not parallel to the first group line in a predetermined direction, the control unit moves characters belonging to the predetermined character group in a reverse order to the predetermined order. The character display device according to claim 3, wherein the display unit is controlled so as to be selected in order and to display the selected character.

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