JP5647393B2 - Display device and display method - Google Patents

Description

  The present invention relates to a display device having a display unit that displays at least conversion candidates relating to characters.

In a mobile terminal such as a mobile phone, when converting hiragana to kanji, it is well known to display on the display section conversion candidates for characters such as kanji to be converted. For example, in consideration of an erroneous key press, even if a key different from the key to be pressed is pressed, a mobile terminal that displays character conversion candidates assigned to keys around the actually pressed key on the display unit It is disclosed (see Patent Document 1).
JP 2007-304966 A

  According to Patent Document 1, since the conversion candidates for characters assigned to the operation detection units around the operated operation detection unit are uniformly displayed on the display unit, the display unit displays the conversion candidates that are less likely to be intended by the user. Is displayed. Therefore, there is a disadvantage that the number of conversion candidates increases and an intended conversion candidate cannot be obtained efficiently.

  An object of the present invention is to provide a display device capable of efficiently displaying conversion candidates on a display unit.

The display device according to the present invention includes a display unit and a plurality of keys to which different characters are assigned, and the first key assigned to the first key by an operation on the first key among the plurality of keys. When a character is input as the first character, a prediction candidate related to the first character input as the first character, a prediction candidate related to the second character assigned to the second key adjacent to the first key, and Is displayed on the display unit, and the third key is operated by operating the third key of the plurality of keys before the prediction candidate of the first character or the second character is determined. When the third character assigned to is input as the second character, except for the prediction candidate related to the second character, the prediction related to the first character and the third character input as the second character Candidate or adjacent to the third key Having a control unit for displaying the predicted candidates of the fourth letter assigned to the fourth key that.

In addition, another display device of the present invention includes a display unit that displays at least conversion candidates relating to characters, a plurality of operation detection units each assigned a different character, and one operation included in the plurality of operation detection units. When an operation is detected by the detection unit, another operation detection unit included in the plurality of operation detection units is identified based on the state of the operation, and a conversion candidate related to the character assigned to the one operation detection unit And a control unit that displays on the display unit conversion candidates related to the characters assigned to the other operation detection unit identified as described above, and the operation detection unit has the position of the operation as the operation state. The control unit specifies the other operation detection unit based on the position of the operation with respect to the one operation detection unit.

  Preferably, the control unit specifies the other operation detection unit based on a distance between the position of the operation with respect to the one operation detection unit and an operation detection unit adjacent to the one operation detection unit. .

In addition, another display device of the present invention includes a display unit that displays at least conversion candidates relating to characters, a plurality of operation detection units each assigned a different character, and one operation included in the plurality of operation detection units. When an operation is detected by the detection unit, another operation detection unit included in the plurality of operation detection units is identified based on the state of the operation, and a conversion candidate related to the character assigned to the one operation detection unit And a control unit that displays on the display unit conversion candidates related to the characters assigned to the other operation detection unit identified as described above, and the operation detection unit includes a range of the operation as the operation state. The control unit identifies the other operation detection unit based on the range of the operation with respect to the one operation detection unit.

Display method of the present invention includes a display unit and a plurality of keys with different letters are assigned respectively, have a first assigned to the first key by the operation on the first key of the plurality of keys When a character is input as the first character, a prediction candidate related to the first character assigned to the first key, and a prediction candidate related to the second character assigned to the second key adjacent to the first key, Is displayed on the display unit, and before the first character or the second character prediction candidate is confirmed, the operation is performed on the third key of the plurality of keys. When the third character assigned to the third key is input as the second character, the first character and the third character input as the second character are excluded except for the prediction candidate related to the second character. Prediction candidate or previous Displaying the conversion candidates according to the fourth letter assigned to the fourth key adjacent to the third key.

  According to the present invention, conversion candidates can be efficiently displayed on the display unit.

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

  FIG. 1 is a schematic block diagram illustrating a configuration example of a mobile terminal according to an embodiment of the present invention.

  A mobile terminal 10 as a display device illustrated in FIG. 1 includes an antenna 11, a communication unit 12, a control unit 13, a storage unit 14, a voice input / output unit 15, a speaker (SP) 15a, a microphone (MIC) 15b, and a touch panel 16. (Operation detection unit and display unit).

  The mobile terminal 10 is a mobile phone in this embodiment. The mobile terminal 10 may be, for example, a PHS (Personal Handy phone System). The mobile terminal 10 has functions for performing voice calls, creation and transmission / reception of e-mail, browsing a WEB (World Wide Web) site, and the like. These various functions are executed by an application program under the control of the control unit 13.

  The antenna 11 is a built-in antenna in this embodiment. The antenna 11 may be a rod antenna, for example. The antenna 11 transmits or receives electromagnetic waves in a predetermined frequency band toward a base station (not shown).

  The communication unit 12 modulates the transmission signal output from the control unit 13 into a predetermined modulation method, and transmits the modulated transmission signal to the base station via the antenna 11 as a radio wave signal. The communication unit 12 demodulates the radio wave signal received from the base station via the antenna 11 and outputs the demodulated signal to the control unit 13 as a received signal.

  The control unit 13 is configured by, for example, a microcomputer, a DSP, and the like. The control unit 13 controls the overall operation of the mobile terminal 10 so that various processes detected by the touch panel 16 by the user are executed in an appropriate procedure.

  The processing performed by the control unit 13 includes processing related to character conversion and processing for displaying conversion candidates. In addition, the process performed by the control unit 13 includes a voice call, an application process for browsing an electronic mail and a web, and the like.

  The control performed by the control unit 13 includes, for example, communication control of the communication unit 12, access to the storage unit 14, display of data on the touch panel 16, input of characters by operating the touch panel 16, and voice processing in the voice input / output unit 15. Control and the like.

  The storage unit 14 includes, for example, a nonvolatile storage device (flash memory), a randomly accessible storage device (SRAM, DRAM), or the like.

  The storage unit 14 stores a dictionary for displaying character conversion and conversion candidates on the touch panel 16, a conversion history in which character conversion history is registered, an operating system, an application program related to character input, and the like. In addition, the storage unit 14 stores the output result of the control unit 13, temporary data used in the process of the program, an address book composed of telephone numbers and the like.

  Since the audio input / output unit 15 outputs the digital audio data supplied from the control unit 13 via the speaker 15a, the digital audio data is a signal such as digital / analog (D / A) conversion and amplification. Apply processing.

  The audio input / output unit 15 converts the analog audio signal input from the microphone 15b into digital audio data and outputs the digital audio data to the control unit 13. Therefore, the audio input / output unit 15 amplifies, analog / digital (A / A) D) Perform processing such as conversion and encoding.

  In the present embodiment, the touch panel 16 is a resistive film type touch panel that inputs characters by pressing the touch panel 16 with a finger. The touch panel 16 may be other methods such as a capacitance method and an infrared method.

  The touch panel 16 has a function as an input device for inputting characters and a function as a display device for displaying characters, images, and the like. The touch panel 16 performs functions as an input device and a display device based on the control of the control unit 13.

  Each component illustrated in FIG. 1 described above is stored in the housing illustrated in FIG.

  FIG. 2 is a perspective view showing an example of the appearance of the mobile terminal according to the embodiment of the present invention.

  As illustrated in FIG. 2, the mobile terminal 10 is a mobile terminal called a straight type in the present embodiment. A touch panel 16 is attached to the upper surface 100F of the casing 100 of the mobile terminal 10 so as to be pressed with a finger. For example, the portable terminal 10 may be a foldable type in which two housings can be folded at hinge portions. When the mobile terminal 10 is a foldable type, the touch panel 16 is mounted on at least one of the two housings.

  A hole 101 for the speaker 15 a is formed in the upper part of the touch panel 16, and the speaker 15 a is disposed in the vicinity of the hole 101 inside the housing 100. A hole 102 for the microphone 15 b is formed in the lower part of the touch panel 16, and the microphone 15 b is disposed in the vicinity of the hole 102 inside the housing 100. On the upper surface 100F of the housing 100 or the side surface of the housing 100, a power button (not shown) is arranged.

  Here, the mobile terminal 10 has a character conversion function for converting characters into other characters such as kanji. Character conversion is executed according to a character conversion mode to be described later.

  The operation on the touch panel 16 is performed by lightly pressing a key displayed on the touch panel 16 with a finger. This pressing may be a touch (light pressing or other touch) as long as the touch panel 16 can detect an input. Instead of the finger, for example, a character can be input using a pen (touch pen). The touch panel 16 is configured to detect such pressing and contact.

  As described above, since the touch panel 16 may be pressed lightly with a finger, a sensory operation is possible. On the other hand, since the operation detection area on the touch panel 16 is usually formed on the same plane, even if the operation detection area is divided into a plurality of areas (a plurality of operation detection units), Inevitably, they are arranged on the same plane.

  Therefore, when different characters are assigned to these multiple areas and characters are input in response to operations on these multiple areas, the operations are detected across multiple areas arranged on the same plane. May cause incorrect input. The mobile terminal 10 is characterized by presenting character conversion candidates in consideration of such erroneous input of characters.

  Hereinafter, the character conversion function using the touch panel 16 and the touch panel 16 will be described. In the following description, characters refer to hiragana, katakana, English (alphabet), kanji, numbers, symbols, and the like. Hiragana, katakana, English letters, and numbers include 1-byte characters and 2-byte characters. However, in Unicode, the half-width character is a 2-byte character. The character conversion includes not only conversion from hiragana to kanji, but also various conversions such as conversion from hiragana to katakana, and conversion from hiragana to alphabet.

  FIG. 3 is a schematic diagram showing details of the touch panel shown in FIG.

  As illustrated in FIG. 3, the touch panel 16 includes an operation area ARE1 and a display area ARE2. The touch panel 16 in the display area ARE2 functions as a display device and corresponds to the display unit of the present invention.

  The operation area ARE1 is divided into a plurality of areas to which various functions such as a call key, a determination key, a direction key, and a numeric key are assigned. In each of the divided areas as described above, information indicating the assigned functions and the contents of the characters is displayed. The operation area ARE1 is divided into 3 (X-axis direction) × 8 (Y-axis direction) area KEY. For example, each area KEY between Xa and Xb indicated by a broken line in FIG. 3 is assigned with a “4” key, a “5” key, and a “6” key in the X-axis direction. It is displayed. The display area ARE2 is an area for displaying characters input by pressing the keys of the operation area ARE1, predicted character conversion candidates, characters after character conversion, various images, and the like.

  FIG. 3 illustrates a case where the area of the operation area ARE1 occupying the touch panel 16 and the area of the display area ARE2 are substantially the same. The operation area ARE1 can occupy the entire touch panel 16, and the entire display area ARE2 can also occupy the touch panel 16. Of course, the ratio of the area of the operation area ARE1 to the area of the display area ARE2 in the touch panel 16 can be suitably set.

  FIG. 4 is a diagram showing an example of key character assignment according to the embodiment of the present invention.

  The assignment of the character of the “5” key will be described as an example. In the “kanji hiragana mode”, “na”, “ni”, “nu”, “ne”, and “no” are assigned to the “5” key. In the “katakana mode”, “na”, “ni”, “nu”, “ne”, and “no” are assigned to the “5” key. In the “alphabet mode”, “j”, “k”, “l”, “J”, “K”, “L”, and “5” are assigned to the “5” key. In “numeric mode”, “5” is assigned to the “5” key. These modes are appropriately selected by the user.

  FIG. 5 is a schematic cross-sectional view taken along broken lines Xa-Xb in FIG. 3 for explaining the structure of the touch panel shown in FIG. 2 and the operation detection method. However, FIG. 5 illustrates the simplest touch panel structure as an input device, and a color filter, a liquid crystal, and the like are omitted as appropriate.

  As illustrated in FIG. 5, the touch panel 16 includes a glass substrate 161 and a film 162 that face each other. An ITO (Indium Tin Oxide) 163 is formed on the surface of the glass substrate 161 facing the film 162. An ITO 163 is also formed on the surface of the film 162 facing the glass substrate 161. A plurality of spacers 164 are disposed between the glass substrate 161 and the film 162 in order to prevent erroneous contact.

  FIG. 5 shows a state where a part of the film 162 is pressed with a finger. At this time, the ITO 163 on the glass substrate 161 side and the ITO 163 on the film 162 side are in contact at the pressing point. The touch panel 16 detects the X coordinate and the Y coordinate of the pressed point as follows.

  When detecting the X coordinate of the pressed point, a voltage is applied in the X-axis direction of the ITO 163 on the film 162 side, and the ITO 163 on the film 162 side and the ITO 163 on the glass substrate 161 side are conducted at the pressed point. At this time, a voltage gradient is generated in the X-axis direction on the ITO 163 on the film 162 side. The touch panel 16 detects the X coordinate of the pressed point by obtaining a partial pressure from the voltage at the pressed point detected on the glass substrate 161 side.

  When detecting the Y coordinate of the pressed point, a voltage is applied in the Y-axis direction of the ITO 163 on the glass substrate 161 side, contrary to the detection of the X coordinate. At this time, a voltage gradient is generated in the Y-axis direction of the ITO 163 on the glass substrate 161 side. The touch panel 16 detects the Y coordinate of the pressing point by obtaining a partial pressure from the voltage of the pressing point detected on the film 162 side.

  FIG. 6 is a schematic diagram illustrating a part of the touch panel illustrated in FIG. 3. FIG. 6 shows only the periphery of the “5” key.

  As shown in FIG. 6, “1” key to “9” key are displayed in each area of the touch panel 16. Hereinafter, focusing on the area KEY in which the “5” key is displayed, a conversion candidate display method executed by the control unit 13 when “NA” is input will be described.

  It is assumed that the user selects “Chinese character hiragana mode” and presses the area where the “5” key is displayed on the touch panel 16 in order to input “NA”. At this time, the touch panel 16 detects the X coordinate and the Y coordinate of the pressed point P.

  The touch panel 16 outputs the detected coordinates of the pressed point P to the control unit 13.

  The control unit 13 determines that “NA” assigned to the “5” key is input based on the detected coordinates of the pressed point P. Then, the control unit 13 refers to the dictionary or the like in the storage unit 14 and displays conversion candidates predicted from the input characters “NA” and “NA” in the display area ARE 2 of the touch panel 16. A display example at this time is illustrated in FIG.

  The conversion candidate is, for example, a conversion candidate (for example, “etc.”, “what”) predicted from an input character (for example, “na”).

  FIG. 7 is a diagram showing a display example of the touch panel according to the embodiment of the present invention.

  As shown in FIG. 7, the display area ARE2 of the touch panel 16 is divided into an upper stage U and a lower stage D when inputting characters. In the lower part D of the display area ARE2, conversion candidates such as “etc.”, “what”, and “good” are displayed. The display order of conversion candidates is preferably displayed according to a dictionary stored in the storage unit 14, a conversion history, or the like.

  In the upper U of the display area ARE2, the input character “NA” is displayed. For example, the input character is determined by pressing the enter key after inputting “NA”.

  By the way, the position of the pressing point P does not necessarily exist near the center in this region. As illustrated in FIG. 6, the pressing point P may exist near the lower right of the pressed region. In this case, the user may have tried to press the “8” key or the “6” key adjacent to the “5” key instead of the “5” key.

  Therefore, the control unit 13 further divides the area of the “5” key into four, and displays conversion candidates in the display area ARE2 according to the divided area where the pressed point P exists.

  FIG. 8 is a diagram for explaining identification of other keys based on the operation state of a certain key and display of conversion candidates related to characters of those keys in the mobile terminal according to the embodiment of the present invention.

  As shown in FIG. 8, each area divided in the operation area ARE1 is equally divided into four. Here, the four divided areas are represented as KEY1 to KEY4. Hereinafter, a case where the pressing point P illustrated in FIG. 6 exists in the divided area KEY4 will be described.

  Based on the coordinates of the pressing point P output from the touch panel 16, the control unit 13 detects the divided area where the pressing point P exists from the divided areas KEY 1 to KEY 4. When the control unit 13 detects that the pressing point P exists in the divided area KEY4, the “5” key is pressed with a possibility of 70% based on the detected position information, and the “8” key is pressed. It is determined that the key is pressed with a probability of 20%, and the “6” key is pressed with a probability of 10%.

  In this way, the control unit 13 identifies an area allocated to another area that may have been pressed other than the “5” key, based on the information (operation state) of the divided area where the pressing point P exists. To do. In this case, the areas specified by the control unit 13 are areas of the “6” key and the “8” key.

  The control unit 13 displays conversion candidates in the display area ARE2 according to the possibility of pressing. Specifically, the control unit 13 displays the conversion candidates related to “NA” of the “5” key, “YA” of the “8” key, and “HA” of the “6” key in the display area ARE 2 of the touch panel 16. To do.

  For example, the control unit 13 touches the touch panel according to the possibility of pressing “etc.” predicted from “na”, “again” predicted from “ya”, “computer” predicted from “ha”, and the like. It is displayed in 16 display areas ARE2. A display example at this time is illustrated in FIG.

  FIG. 9 is a diagram for explaining conversion candidate display control based on an operation state in the mobile terminal according to the embodiment of the present invention.

  As shown in FIG. 9, the lower part D of the display area ARE2 displays conversion candidates such as “NA”, “etc.”,..., “YA”, “again”,. Has been.

  Conversion candidates are displayed in order of the highest possibility of being pressed. Specifically, the conversion candidates are “na” of the “5” key most likely to be pressed, words predicted from “na”, “ya” of the “8” key most likely to be pressed next. ”And“ ya ”, and finally,“ 6 ”key“ ha ”and“ ha ”are predicted. Note that a phrase is a set of characters such as “etc.”.

  The number of conversion candidates displayed may be varied according to the possibility of being pressed. The possibility that the “5” key is pressed is the highest, and the possibility that the “6” key is pressed is the lowest. Therefore, in order to quickly determine the input character, the number of conversion candidates to be displayed predicted from “ha” of the “6” key is smaller than the number of words predicted from “na” of the “5” key. Is desirable.

  A case where the pressing point P exists on the boundary between the two areas KEY will be described as an example. For example, when the pressing point P exists on the boundary between the area KEY of the “5” key and the area KEY of the “6” key, the control unit 13 presses the “5” key with a probability of 50%, It is determined that the “6” key has been pressed with a probability of 50%.

  Even when the pressing point P exists in another divided area, the control unit 13 displays the conversion candidates in the display area ARE2 of the touch panel 16 in the same manner as described above. For example, when the pressing point P exists in the divided area KEY1, the control unit 13 presses the “5” key with a possibility of 70%, presses the “2” key with a possibility of 20%, and “4”. It is determined that the key has been pressed with a probability of 10%.

  The possibility of pressing according to the divided areas KEY1 to KEY4 can be suitably set. For example, when the pressing point P exists in the divided area KEY4, the control unit 13 presses the “5” key with a possibility of 60%, presses the “8” key with a possibility of 20%, and “6”. It can be determined that the key is pressed with a probability of 5% and the “9” key is pressed with a probability of 5%.

  In this way, the control unit 13 identifies an area to which another character is assigned according to the possibility of pressing, and assigns the conversion candidate related to the character assigned to the pressed area and the identified area. The conversion candidates related to the other characters are displayed in the display area ARE2.

  FIG. 10 is a diagram for explaining conversion candidate narrowing-down processing in the mobile terminal according to the embodiment of the present invention.

  After the conversion candidates are displayed in the display area ARE2, the control unit 13 can perform a narrowing process in order to quickly determine a desired character or phrase from a plurality of displayed conversion candidates.

  Specifically, as illustrated in FIG. 10, when the user touches “NA” displayed in the lower stage D of the display area ARE2, the control unit 13 displays ““ NA ”in the upper stage U of the display area ARE2. To focus on? Is displayed. When the user presses the enter key in accordance with this guidance message, only the words related to “NA” and “NA” are displayed in the upper U of the display area ARE2, and the display of other conversion candidates is deleted (suppression). )

  In this way, by leaving only the conversion candidates related to the character assigned to a certain key from the plurality of displayed conversion candidates, the user can efficiently select the desired conversion candidate by deleting the other conversion candidates. Can get well.

  Here, as a means for narrowing down, a guidance message is displayed in the lower part D of the display area ARE2, but for example, the display of the “phone book” key and the “app” key on the display area ARE1 is changed to “N”. squeeze? The display may be changed to “”.

  An operation example of the mobile terminal 10 will be described. In the following description, it is assumed that the user presses the “5” key.

  FIG. 11 is a flowchart showing an operation example of the mobile terminal according to the embodiment of the present invention.

  As shown in FIG. 11, when the input of characters is started (step ST1), the user operates the operation area ARE1 of the touch panel 16 and presses the key to which the character to be input is assigned.

  Touch panel 16 detects the X and Y coordinates of pressed point P, and outputs the detected coordinates of pressed point P to control unit 13 (step ST2).

  Thereafter, the control unit 13 detects which area is pressed based on the coordinates of the pressing point P output from the touch panel 16. And the control part 13 specifies the key which may be pressed based on the division area where the pressing point P exists (step ST3).

  In this case, the areas specified by the control unit 13 are areas of the “6” key and the “8” key.

  The control unit 13 displays the conversion candidate related to the pressed key and the character of the specified key in the display area ARE2 in accordance with the possibility of pressing (step ST4).

  After the conversion candidate related to the character assigned to the pressed key and the specified other key is displayed in the display area ARE1, the control unit 13 determines the character of the pressed key and the specified other key character. It is determined whether or not a narrowing-down process for selecting a character of one key is performed (step ST5).

  When the narrow-down process is performed in step ST5 and one key is selected (Yes), the control unit 13 displays the conversion candidates related to the characters assigned to the key in the display area ARE2 and other keys. The conversion candidate related to the assigned character is deleted from the display area ARE2. That is, the control unit 13 performs display control of conversion candidates displayed in the display area ARE2 (step ST6).

On the other hand, when the narrowing-down process is not performed in step ST5 (No), the control unit 13 proceeds to step ST7 without performing display control of such conversion candidates.
In step ST7, it is determined whether or not one conversion candidate is selected and determined from the displayed conversion candidates, and the selection and determination of one conversion candidate is performed according to an operation on the touch panel 16. In this case, the conversion candidate is determined and the process is terminated (step ST8).

  As described above in detail, according to the mobile terminal 10, the control unit 13 specifies another key based on the state of the operation on the pressed key. At this time, the control unit 13 displays not only the character conversion candidates assigned to the pressed key but also the character conversion candidates assigned to the other specified keys in the display area ARE2 of the touch panel 16, and is pressed. The display of conversion candidates is suppressed based on the state of the operation on the selected key.

  Thereby, an input character can be efficiently converted into a desired character. In particular, because the keys are arranged on the same plane, the touch panel 16 is difficult to distinguish from other keys, and a key pressing error is likely to occur. However, according to the mobile terminal 10, even when the touch panel 16 is used, it is possible to efficiently convert input characters to desired characters without impairing operability.

  Since the mobile terminal 10 performs the narrowing-down process, unnecessary conversion candidates not intended by the user can be reduced, and a desired character can be determined quickly.

(Modification 1)
In Modification 1, when the control unit 13 specifies another key in Step ST <b> 3 illustrated in FIG. 11, the pressing point of the pressed key and the center point of the other key adjacent to the pressed key are The keys that are likely to be pressed from the distance are narrowed down.

  FIG. 12 is a schematic diagram showing a part of a touch panel according to a modification of the present invention. FIG. 12 shows only the periphery of the “5” key.

  Hereinafter, the simplest example will be described by focusing on the area KEY in which the “5” key is displayed.

  It is assumed that the pressed point is the pressed point P1 at the lower center of the “5” key shown in FIG. The control unit 13 calculates the distance between the coordinates of the pressed point P1 and the coordinates of the center point of each key adjacent to the “5” key. At this time, the distance between the pressed point P1 and the center point P2 of the “8” key is the shortest among the calculated distances between the pressed point P1 and the center point of the other key.

  Therefore, the control unit 13 displays conversion candidates relating to the characters assigned to the “5” key and “8” in the display area ARE 2 of the touch panel 16.

  Thereby, an input character can be converted into a desired character more efficiently.

(Modification 2)
In the second modification, when the control unit 13 specifies another key adjacent to the pressed key in step ST3 illustrated in FIG. 11, it is adjacent to the pressed key from the pressed range of the pressed key. It identifies other keys.

  FIG. 13 is a schematic diagram showing a part of a touch panel according to a modification of the present invention. FIG. 13 shows only the periphery of the “5” key.

  Hereinafter, the simplest example will be described by focusing on the area KEY in which the “5” key is displayed.

  As shown in FIG. 13, in the case of pressing with a finger, the pressed portion has a certain area. Therefore, the control unit 13 detects the pressed point P and detects the pressed range REG.

In this case, the pressed range REG extends to the divided areas KEY2 and KEY4 in FIG.
The control unit 13 specifies other keys based on the information (operation state) of the divided area covered by the pressing range REG, and the “5” key is 70%, the “6” key and the “8” key are 15%, respectively. It is determined that the button was pressed because of the possibility. Then, the control unit 13 displays the conversion candidates related to the characters assigned to the “5” key, “6” key, and “8” key in the display area ARE 2 on the touch panel 16.

  Thereby, even in the case of pressing with a finger, an input character can be efficiently converted into a desired character.

(Modification 3)
In Modification 3, when the control unit 13 displays the conversion candidate in the display area ARE2 of the touch panel 16 in step ST4 illustrated in FIG. 11, the size of the conversion candidate character displayed according to the possibility of pressing is set. Change.

  The control unit 13 displays the conversion candidate character with the highest possibility of pressing larger than the conversion candidate character with the lowest possibility of pressing. The case illustrated in FIG. 9 will be described as an example. The control unit 13 displays the word predicted from “NA” and “NA” larger than the word predicted from “YA” and “YA” in the display area ARE2. To display.

  As a result, the input characters can be converted into desired characters visually and efficiently.

  As another modification, the control unit 13 can display conversion candidates in the display area ARE2 of the touch panel 16 according to the time of key operation (operation state).

  In step ST4 illustrated in FIG. 11, when the conversion candidates are displayed in the display area ARE2 of the touch panel 16, and a predetermined time (for example, 3 seconds) has elapsed, the control unit 13 displays only the conversion candidates that are most likely to be pressed. Displayed in the area ARE2.

  Thereby, an input character can be efficiently converted into a desired character.

  As another modification, the display device according to the present invention can be applied to the mobile terminal 10a illustrated in FIG. FIG. 14 illustrates a foldable portable terminal 10a. The portable terminal 10a has a display unit 17 and a plurality of keys 18 as operation detection units. Even such a portable terminal having a key that is not a key on the touch panel can efficiently convert an input character into a desired character.

  The display device according to the present invention can be applied not only to a mobile terminal such as a mobile phone but also to various display devices that employ a touch panel such as a PDA (Personal Digital Assistant) and an automatic teller machine.

  In the present embodiment, as shown in step ST1 to step ST8 in FIG. 11, when an operation is performed on the touch panel 16, conversion candidates related to characters assigned to the area where the operation is performed are displayed. Although the conversion candidate related to the character assigned to the other area specified based on the state of the operation is displayed in the display area ARE2, a mode in which one conversion candidate is determined by the operation of the enter key has been disclosed. However, the present invention is not limited to this, and when another operation is continuously performed before one conversion candidate is confirmed by the operation of the enter key, the other operation is also performed in steps ST1 to ST8. The process can be applied as it is.

  That is, in this case, in the display area ARE2, the character assigned to the other area specified based on the conversion candidate related to the character assigned to the area where the other operation is performed and the state of the other operation. Will be displayed.

  As described above, the present invention can apply the processing from step ST1 to step ST8 each time an operation is detected by the touch panel 16. By doing this, every time a character is input, conversion candidates considering a pressing error can be displayed in the display area ARE2, and the user can input the character with peace of mind.

  If the next character is input before the conversion candidate for the input character is determined in this way, the conversion candidate is displayed considering only the input error of the last input character. It may be configured not to display conversion candidates in consideration of mistakes in pressing for characters input so far. By doing this, while it is possible to display conversion candidates in consideration of a pressing error, it is possible to suppress useless conversion candidates from being displayed in the display area ARE2, and improve the visibility of the conversion candidates.

It is a schematic block diagram which shows the structural example of the portable terminal which concerns on embodiment of this invention. It is a perspective view which shows the example of an external appearance of the portable terminal which concerns on embodiment of this invention. FIG. 3 is a schematic diagram illustrating details of the touch panel illustrated in FIG. 2. It is a figure which shows an example of allocation of the character of the key which concerns on embodiment of this invention. FIG. 4 is a schematic cross-sectional view taken along broken lines Xa-Xb in FIG. 3 for explaining the structure of the touch panel shown in FIG. 2 and the operation detection method. FIG. 4 is a schematic diagram illustrating a part of the touch panel illustrated in FIG. 3. FIG. 6 shows only the periphery of the “5” key. It is a figure which shows the example of a display of the touchscreen which concerns on embodiment of this invention. It is a figure for demonstrating the specification of the other key based on the operation state with respect to a certain key in the portable terminal which concerns on embodiment of this invention, and the display of the conversion candidate concerning the character of those keys. It is a figure for demonstrating the process of the prediction conversion candidate of the portable terminal which concerns on embodiment of this invention. It is a figure for demonstrating the conversion candidate narrowing-down process in the portable terminal which concerns on embodiment of this invention. It is a flowchart which shows the operation example of the portable terminal which concerns on embodiment of this invention. It is a schematic diagram which shows a part of touch panel which concerns on the modification of this invention. It is a schematic diagram which shows a part of touch panel which concerns on the modification of this invention. It is a perspective view which shows the example of an external appearance of the portable terminal which concerns on the modification of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Portable terminal, 11 ... Antenna, 12 ... Communication part, 13 ... Control part, 14 ... Memory | storage part, 15 ... Voice input / output part, 15a ... Speaker, 15b ... Microphone, 16 ... Touch panel, 100 ... Case, 100F ... Upper surface, 101 ... hole, 102 ... hole, 161 ... glass substrate, 162 ... film, 163 ... ITO, 164 ... spacer

Claims (5)

A display unit;
A plurality of keys, each assigned a different character ,
When the first character assigned to the first key is input as the first character by an operation on the first key of the plurality of keys, the prediction candidate related to the first character input as the first character is A display device that displays on the display unit a prediction candidate relating to a second character assigned to a second key adjacent to the first key ,
Before the prediction candidate for the first character or the second character is determined, the third character assigned to the third key is input as the second character by operating the third key of the plurality of keys. If
Except for the prediction candidate related to the second character, the first character, the prediction candidate related to the third character inputted as the second character, or the fourth key assigned to the fourth key adjacent to the third key A control unit for displaying prediction candidates for four characters ;
Display equipment. A display unit that displays at least conversion candidates relating to characters;
A plurality of operation detectors each assigned a different character;
When an operation is detected by one operation detection unit included in the plurality of operation detection units, another operation detection unit included in the plurality of operation detection units is identified based on the state of the operation, and the one A control unit that displays on the display unit conversion candidates related to characters assigned to the operation detection unit and conversion candidates related to characters assigned to the other operation detection unit identified;
Have
The operation detection unit is
Detecting the position of the operation as the state of the operation;
The controller is
A display device that identifies the other operation detection unit based on a position of the operation with respect to the one operation detection unit. The controller is
The display device according to claim 2, wherein the other operation detection unit is specified based on a distance between a position of the operation with respect to the one operation detection unit and an operation detection unit adjacent to the one operation detection unit. A display unit that displays at least conversion candidates relating to characters;
A plurality of operation detectors each assigned a different character;
When an operation is detected by one operation detection unit included in the plurality of operation detection units, another operation detection unit included in the plurality of operation detection units is identified based on the state of the operation, and the one A control unit that displays on the display unit conversion candidates related to characters assigned to the operation detection unit and conversion candidates related to characters assigned to the other operation detection unit identified;
Have
The operation detection unit is
Detecting the range of the operation as the state of the operation;
The controller is
A display device that identifies the other operation detection unit based on a range of the operation with respect to the one operation detection unit. A display unit;
A plurality of keys, each assigned a different character ,
When a first character assigned to the first key is input as the first character by an operation on the first key of the plurality of keys, a prediction candidate relating to the first character assigned to the first key , A display method in a display device for displaying a prediction candidate relating to a second character assigned to a second key adjacent to the first key on the display unit ,
Before the prediction candidate for the first character or the second character is determined, the third character assigned to the third key is input as the second character by operating the third key of the plurality of keys. If
Except for the prediction candidate related to the second character, the first character, the prediction candidate related to the third character inputted as the second character, or the fourth key assigned to the fourth key adjacent to the third key Display prediction candidates for 4 characters,
Display method.

Images