JP2014222490A - Information display device, program, recording medium, and information display method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information display device that has good operability and enables a display magnification to be changed through proximity operation.SOLUTION: An information display device (1) comprises: a state determination unit (21) that, on the basis of a result of detection by a sensor unit (41) for detecting at least contact/proximity of an operation body with/to a display surface (43), determines whether it is in a contact state or a proximity state; and a function invalidation unit (23) that, when the state determination unit (21) determines that a transition has been made from the contact state to the proximity state, invalidates a magnification change function until a validating condition of the magnification change function is satisfied.

Description

  The present invention relates to an information display device and the like that can be operated in a state where an operating body is brought close to a display surface.

  In recent years, information display devices such as smartphones, tablet terminals, navigation devices, etc., which have been spreading widely, touch (touch) an operating body such as a finger on the display surface of the information display device using a proximity sensor or a highly sensitive touch panel. Some operations can be performed in the proximity state (proximity operation) without being performed. As a technique related to such a proximity operation, there is a technique for performing enlarged / reduced display when an operating body is in a proximity state. For example, Patent Document 1 discloses an electronic device that displays an image on a display unit by enlarging an image or reducing the image according to a physical quantity that changes in accordance with the detected distance of an object to the display unit.

JP 2012-238177 A (released on December 6, 2012)

  However, in the conventional technique, after the operating body comes into contact with the display surface (after touch), the image displayed on the display surface after touching when the operating body is in the proximity state even if the operating body is separated from the display surface. Will be expanded. This enlargement is likely not intended by the user, and the operability of the apparatus is not good.

  Accordingly, the present invention has been made in view of the above problems, and an object thereof is to provide an information display device that has good operability and can change the display magnification by a proximity operation.

  In order to solve the above-described problem, an information display device according to an aspect of the present invention includes a display surface that displays an image, a detection unit that detects at least contact and proximity of an operation tool to the display surface, and the detection Whether the operating body is in contact with the display surface, or whether the operating body is in a proximity state located in a region less than a predetermined distance from the display surface, based on the detection result by the unit. At least a state determination unit for determining, a display control unit having a magnification change function for changing the display magnification of the image and displaying the image on the display surface when the state determination unit determines that the proximity state is present; and If it is determined by the state determination means that the contact state has shifted to the proximity state, there is no function for disabling the magnification changing function until an enabling condition for enabling the magnification changing function is satisfied. It is characterized by comprising a means.

  According to the above configuration of the information display device according to one aspect of the present invention, until the validation condition is satisfied, it is determined as the contact state by invalidating the magnification changing function for changing the display magnification and displaying on the display surface. After being touched (after touching), for example, even if an operation body such as a finger is in the proximity state, the magnification change display of the image is not performed. Therefore, it is possible to stop the change in magnification and perform display that is easy for the user to visually recognize. Further, when the validation condition is satisfied, the magnification change display of the image can be performed again, and a convenient operation can be provided to the user.

  Thus, according to the above configuration, it is possible to provide an information display device with good operability and capable of changing the display magnification by a proximity operation.

It is a block diagram which shows the principal part structure of the information display apparatus which concerns on one Embodiment of this invention. It is a figure explaining invalidation of the magnification change function by the information display device concerning one embodiment of the present invention. It is a flowchart which shows the flow of the process at the time of the magnification change display by the information display apparatus which concerns on one Embodiment of this invention. It is a block diagram which shows the principal part structure of the information display apparatus which concerns on another one Embodiment of this invention. It is a figure explaining invalidation of the magnification change function by the information display device concerning another embodiment of the present invention. It is a flowchart which shows the flow of a process at the time of the magnification change display by the information display apparatus which concerns on another one Embodiment of this invention. It is a figure explaining invalidation of the magnification change function by the information display device concerning another embodiment of the present invention. It is a flowchart which shows the flow of the process at the time of the magnification change display by the information display apparatus which concerns on another one Embodiment of this invention. It is a flowchart which shows the continuation of the flow of the process at the time of the magnification change display by the information display apparatus which concerns on another one Embodiment of this invention. It is a figure explaining invalidation of the magnification change function by the information display device concerning another embodiment of the present invention. It is a flowchart which shows the flow of the process at the time of the magnification change display by the information display apparatus which concerns on another one Embodiment of this invention.

Embodiment 1
Hereinafter, it will be as follows if one Embodiment of this invention is described based on FIGS. 1-3.

(Configuration of information display device)
FIG. 1 is a block diagram showing a main configuration of the information display device 1 of the present embodiment. As illustrated in FIG. 1, the information display device 1 includes a control unit 2, a storage unit 3, and a display operation unit 4, and performs a process according to an operation (input operation) performed by an operation body such as a finger or a stylus. It is. The display surface 43 of the display operation unit 4 serves as an operation input receiving unit for the information display device 1. Examples of the information display device 1 include a smartphone, a tablet terminal, and a navigation device. Although not shown, the information display device 1 may include a communication unit, a voice input unit, a voice output unit, and the like.

  The display operation unit 4 is a user interface and includes a display unit 42 and a sensor unit (detection unit) 41. In the present embodiment, the display unit 42 and the sensor unit 41 are integrally provided as the display operation unit 4, and the display operation unit 4 is configured by a touch panel.

  The display unit 42 is a display device that displays an image on the display surface 43. The display unit 42 includes, for example, a liquid crystal display (LCD), an organic EL display (OLED), or the like.

  The sensor unit 41 is a device that detects the proximity and contact of the operating body with respect to the display surface 43. The sensor unit 41 is realized by, for example, a capacitive, infrared, or optical touch sensor. In addition, even if the sensor which can detect a contact and proximity | contact is provided as the sensor part 41, the sensor which detects a contact, and the sensor which detects proximity | contact may each be provided.

  The detection of proximity and contact will be described by taking as an example a case where a capacitive sensor capable of detecting contact and proximity is used as the sensor unit 41. The sensor unit 41 outputs a capacitance (output value) that changes in accordance with the magnitude (degree) of the distance between the operating body and the display surface 43. The sensor unit 41 detects proximity by outputting a predetermined amount of capacitance when the operating body comes to a position away from the display surface 43 by a predetermined distance in the vertical direction. As the operating body approaches the display surface 43, the capacitance output by the sensor unit 41 increases. When the operating body comes into contact with the display surface 43, the electrostatic capacity output by the sensor unit 41 is maximized, and the contact is detected.

  In the present embodiment, the sensor unit 41 may be a sensor that detects only the presence or absence of proximity.

  The storage unit 3 is a block that stores various information and various programs. Further, as will be described later, the storage unit 3 stores information and data such as coordinates detected by the sensor unit 41, information on which each flag is set (true) or information (time), time information, and the like.

  The control unit 2 is a block that controls each block included in the information display device 1. The control unit 2 further includes a state determination unit (state determination unit) 21, a display control unit (display control unit) 22, and a function invalidation unit (function invalidation unit) 23.

  According to the output value (detection result) of the sensor unit 41, the state determination unit 21 is in a contact state where the operating body is in contact with the display surface 43, or the operating body is an area less than a predetermined distance from the display surface 43. It is a block which determines whether it is the proximity state located in. Furthermore, in the present embodiment, the state determination unit 21 also determines whether or not the operating tool is in a non-proximity state that is located in an area that is equal to or greater than the predetermined distance from the display surface.

  Here, the state determination unit 21 determines that the output value (for example, electrostatic capacity) of the sensor unit 41 is in a non-proximity state when it is less than the first threshold, and is equal to or greater than the first threshold and less than the second threshold. In this case, it is determined to be in the proximity state, and further, if it is equal to or greater than the second threshold value, it is determined to be the contact state. In this specification, a region determined as a non-proximity region, specifically, a region where the output value of the sensor unit 41 is less than the first threshold value, a region determined as a non-proximity region or a proximity region, specifically The region where the output value of the sensor unit 41 is greater than or equal to the first threshold value and less than the second threshold value is referred to as a proximity region. Here, when the proximity region is a region that is less than a predetermined distance from the display surface 43, the non-proximity region can be said to be a region that is a predetermined distance or more from the display surface 43. An operation on the information display device 1 in the proximity state is referred to as a proximity operation.

  The display control unit 22 is a block that controls display on the display surface 43 of the display unit 42. The display control unit 22 has a magnification change function for changing the image display magnification and displaying the image on the display surface 43 when the state determination unit 21 determines that the state is the proximity state.

  The display control unit 22 displays an enlarged or reduced image according to an output value (for example, electrostatic capacity) of the sensor unit 41 when the state determination unit 21 determines that the proximity state is set as a magnification change function. Make it possible. The display control unit 22 displays an image by enlarging or reducing the image in accordance with the approach of the operating body approaching or moving away from the display surface 43 in the proximity region where the operating body is in the proximity state. To control. The display magnification may be changed according to the distance that the operating body approaches or moves away.

  When the function disabling unit 23 determines that the state determining unit 21 has transitioned from the contact state to the proximity state, the function disabling unit 23 disables the magnification changing function until an enabling condition for enabling the magnification changing function is satisfied. In the present embodiment, the activation condition is determined by the state determination unit 21 to be in the non-proximity state.

  The invalidation and validation of the magnification changing function of the present embodiment will be described visually with reference to FIG. In FIG. 2, it is assumed that the operating body is a finger and the magnification changing function is an enlargement function. The same applies to FIGS. 5, 7, and 10 described later. However, the magnification change function may be a reduction function.

  As shown to (a) of FIG. 2, a finger | toe contacts the display surface 43 first and will be in a contact state. In FIG. 2A, it is assumed that an application (app6) is selected by contact. After that, as shown in FIG. 2B, when the finger moves away from the display surface 43 and enters the close state (changes from the contact state to the close state), the enlargement is canceled (returns to the default display magnification), and the screen Make a transition. At this time, the enlargement function is invalidated. Here, in this embodiment, when the proximity state is reached after the contact state (after the indicator is separated from the display surface 43), the enlargement function (magnification change function) is invalidated.

  Note that screen transition is not necessarily performed. Thereafter, as shown in FIG. 2C, if the finger is in the proximity region, that is, if the finger is in the proximity state, the enlargement function remains invalid and no enlargement is performed.

  Thereafter, as shown in FIG. 2D, when the finger moves to the non-proximity region, that is, when the finger enters the non-proximity state, the validation condition is satisfied. In addition, the crosses in (d) of FIG. 2 indicate the boundary between the proximity region and the non-proximity region. After the validation, as shown in FIG. 2E, when the finger moves to the proximity region, the next operation can be enlarged.

  In the present embodiment, the magnification change function (enlargement function) is invalidated by transitioning from the contact state to the proximity state. For example, the operating tool is reciprocated a predetermined number of times on the boundary between the non-proximity region and the proximity region. By doing so, the magnification changing function may be invalidated. Alternatively, the magnification changing function may be invalidated by another operation.

(Processing flow when displaying magnification change)
Next, the flow of processing of the control unit 2 when displaying the magnification change of the information display device 1 will be described with reference to FIG. Here, the magnification change display will be described as an enlarged display. The enlarged display may be simply referred to as enlargement.

  First, an enlarging flag indicating that enlarging display is possible is set to true (step 1, hereinafter abbreviated as S1), and an enlarging flag indicating that enlarging display is being performed is set to false (S2 ), The in-contact flag indicating the contact state is set to false (S3). The set state of each flag is stored in the storage unit 3. And the output value of the sensor part 41 is acquired (S4), and the state determination part 21 determines the state of an operating body based on this output value (S5).

  If the contact state is determined in S5, the in-contact flag is set to true (S6), the process returns to S4, and the process is repeated.

  If it is determined in S5 that it is in the proximity state, it is determined whether the in-contact flag is true or false (S7). If it is determined in S7 that the contacting flag is true, the contacting flag is set to false (S8), the enlargement possible flag is set to false (S9), and it is determined whether the expanding flag is true or false (S9). S10). If it is determined in S10 that the enlargement flag is false, the process returns to S4 and the process is repeated. If the enlargement flag is determined to be true in S10, the enlargement of the image is canceled (S11), the enlargement flag is set to false (S12), the process returns to S4, and the process is repeated. If it is determined in S7 that the in-contact flag is false, it is determined whether the enlargement possible flag is true or false (S13). If it is determined in S13 that the enlarging possible flag is true, it is determined whether the enlarging flag is true or false (S14). If it is determined in S14 that the enlargement flag is false, the image is enlarged (S15), the enlargement flag is set to false (S12), the process returns to S4, and the process is repeated. If the enlargement possible flag is determined to be false in S13, and if the enlargement in progress flag is determined to be true in S14, the process returns to S4 and the process is repeated.

  If it is determined in S5 that it is in the non-proximity state, it is determined whether the enlarging flag is true or false (S17). If the enlargement flag is determined to be true in S17, the enlargement of the image is canceled (S18), the enlargement flag is set to false (S19), the enlargement possible flag is set to true (S20), and the contact is being made The flag is set to false (S21), the process returns to S4, and the process is repeated. If it is determined in S17 that the enlargement flag is false, the process proceeds to S20.

  With the above processing, when the information display device 1 transitions from the contact state to the proximity state, the enlargement function is disabled until it is determined that the information display device 1 is in the non-proximity state.

  As described above, in the information display device 1, the magnification change function is disabled until the activation condition is satisfied, with the activation condition of the magnification change function being determined as being in the non-proximity state by the state determination unit 21. Thus, even when the proximity state is reached after the contact state, the magnification change display of the image is not performed. Therefore, it is possible to stop the magnification change display and perform a display that is easy for the user to visually recognize. Further, when the validation condition is satisfied, the magnification change display of the image can be performed again, and a convenient operation can be provided to the user. As described above, the information display device 1 is an information display device that has good operability and can change the display magnification by a proximity operation.

[Embodiment 2]
Another embodiment of the present invention will be described with reference to FIGS. FIG. 4 is a block diagram showing a main configuration of the information display device 1a according to the present embodiment. In the information display device 1a, members having the same functions as those described in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  In the information display device 1a, in addition to the configuration of the information display device 1 of the first embodiment, the control unit 2 includes a movement distance measurement unit (movement distance measurement means) 24. The moving distance measuring unit 24 is a block that measures the moving distance along the display surface 43 of the operating tool based on the output value of the sensor unit 41.

  In the present embodiment, the movement distance measuring unit 24 measures the movement distance by specifying the position of the operating tool as coordinates from the output value of the sensor unit 41. Note that the movement distance of the operating tool is measured from two-dimensional coordinates on the XY axes.

  Further, in the information display device 1 a, the function invalidation unit 23 follows the display surface 43 of the operation body measured by the movement distance measurement unit 24 of the operation body determined to be in the proximity state by the state determination unit 21. The fact that the movement distance (in the horizontal direction) has reached the movement distance threshold value (predetermined movement distance) is used as the magnification change function validation condition, and the invalidation of the magnification change function is maintained until the validation condition is satisfied.

  The invalidation and validation of the magnification changing function in the information display device 1a will be described visually with reference to FIG. Since (a) and (b) in FIG. 5 are the same as (a) and (b) in FIG. 2, description thereof is omitted. After the state shown in FIG. 5B, the enlargement function is disabled until the finger moves along the display surface 43 in the proximity area by the moving distance threshold as shown in FIG. 5C. Do not enlarge. After that, as shown in FIG. 5D, when the finger moves a certain distance or more along the display surface 43 in the proximity region, the validation condition is satisfied, so the enlargement function is disabled and enabled. . That is, it can be enlarged.

(Processing flow when displaying magnification change)
Next, the flow of processing performed mainly by the control unit 2 during the magnification change display of the information display device 1a will be described with reference to FIG. Here, the magnification change display will be described as an enlarged display.

  Since the processing from S1 to S9 in the information display device 1a is the same as the processing from S1 to S9 in the information display device 1, description thereof is omitted. In the information display device 1a, after S9, the state determination unit 21 determines the proximity state, in other words, the coordinates of the operating tool when proximity is detected are stored in the storage unit 3 as the coordinates A (S31), and the process proceeds to S10. move on. The processing from S10 to S21 in the information display device 1a is the same as the processing from S10 to S21 in the information display device 1 except for the processing when the enlargement possible flag is determined to be false in S13. Description is omitted.

  In the information display device 1a, when the enlarging flag is determined to be false in S13, the coordinates of the current position of the operating tool are stored in the storage unit 3 as coordinates B (S32), and | coordinate A-coordinate B | It is judged whether it is more than a distance threshold value (S33). If it is determined in S33 that the distance is greater than or equal to the movement distance threshold, the enlargement possible flag is set to true (S34), the process returns to S4, and the process is repeated. If it is determined in S33 that the distance is not greater than or less than the movement distance threshold, the process returns to S4 and the process is repeated.

  With the above processing, when the information display device 1a transitions from the contact state to the proximity state, the enlargement function is disabled until it is determined that the movement distance in the direction along the display surface 43 of the operating body has reached the movement distance threshold. It becomes.

  In many cases, the operating body moves in the direction along the display surface 43 in the proximity state because the user is looking for the contact position of the display surface 43. According to the information display device 1a, when the vertical movement distance is equal to or greater than the movement distance threshold, the invalidation is canceled. Therefore, when it can be considered that the user is looking for the contact position, the display can be easily displayed by changing the magnification again.

  In the present embodiment, the movement distance measurement unit 24 has been described as measuring the movement distance in the direction along the display surface 43 of the operation tool. However, the movement distance in the direction perpendicular to the display surface 43 of the operation tool is described. May be configured to measure. In this case, the function disabling unit 23 determines that the vertical movement distance measured by the movement distance measuring unit 24 of the operating body determined to be in the proximity state by the state determination unit 21 has reached a predetermined movement distance. As the validation condition, invalidation is maintained until the validation condition is satisfied.

[Embodiment 3]
Still another embodiment of the present invention will be described with reference to FIGS. 1 and 7 to 9. The information display device 1b of the present embodiment has the same configuration as the information display device 1 of the first embodiment. Therefore, the configuration of the information display device 1b is represented in FIG. In the information display device 1b, members having the same functions as those described in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  In addition to the function of the information display device 1, the information display device 1 b further specifies the position in the vertical direction with respect to the display surface 43 of the operating tool based on the output value of the sensor unit 41. To determine the movement state of the operating tool. In the present embodiment, the state determination unit 21 determines the movement state by specifying the position of the operating tool as coordinates from the output value of the sensor unit 41. The vertical position of the operating tool is specified as coordinates in the Z-axis direction.

  Then, the function disabling unit 23 of the information display device 1b causes the state determination unit 21 to perform a re-enlargement determination z in which the operating body is separated from the display surface 43 as shown in FIG. After moving in the direction away from the display surface 43 beyond the axial distance threshold 1 (first position), the re-enlargement determination z-axis distance threshold 2 (second position) closer to the display surface 43 than the re-enlargement determination z-axis distance threshold 1 ) Is used as a validation condition for the magnification change function, and the invalidation is maintained until the validation condition is satisfied.

The invalidation and validation of the magnification changing function in the information display device 1b will be described visually with reference to FIG. Since (a) and (b) of FIG. 7 are the same as (a) and (b) of FIG. 2, description thereof is omitted. After the state shown in FIG. 7B, as shown in FIG. 7C, the finger moves away from the display surface 43, and the re-enlargement determination z-axis distance threshold 1 as shown in FIG. While moving to (first position), the enlargement function is disabled and enlargement is not performed. Then, after the finger moves in the direction away from the display surface 43 beyond the re-enlargement determination z-axis distance threshold 1,
As shown in (d) of FIG. 7, when the re-enlargement determination z-axis distance threshold 2 as shown in (e) of FIG. 7 is moved in the direction approaching the display surface 43, the validation condition is satisfied. Cancel the disabling of the enlargement function and enable it. That is, it can be enlarged.

(Processing flow when displaying magnification change)
Next, the flow of processing of the control unit 2 when displaying the magnification change of the information display device 1b will be described with reference to FIGS. Here, the magnification change display will be described as an enlarged display.

  Since the processing from S1 to S3 in the information display device 1b is the same as the processing from S1 to S3 in the information display device 1, description thereof is omitted. In S1b, after S3, the re-enlargement determination z-axis distance threshold 1 excess flag for determining whether the operating body has moved beyond the re-enlargement determination z-axis distance threshold 1 is set to false (S41). move on. The processing from S4 to S21 in the information display device 1b is the same as the processing from S4 to S21 in the information display device 1 except for the processing when the enlargement possible flag is determined to be false in S13 and the processing after S21. Since it is the same as the process, the description is omitted.

  In the information display device 1a, when the enlargement possible flag is determined to be false in S13, as shown in FIG. 9, the coordinates of the current position of the operating tool are acquired (S42), and the re-enlargement determination z-axis distance threshold value 1 is exceeded. The state of the flag is determined (S43). If it is determined in S43 that the re-enlargement determination z-axis distance threshold 1 excess flag is false, whether the indicator has moved in a direction away from the display surface 43 beyond the re-enlargement determination z-axis distance threshold 1 is determined. Determine (S44). If it is determined in S44 that the movement has exceeded the re-enlargement determination z-axis distance threshold 1, the re-enlargement determination z-axis distance threshold 1 excess flag is set to true (S45), the process returns to S4, and the process is repeated. If it is not determined in S44 that the re-enlargement determination z-axis distance threshold value 1 has been exceeded, the process returns to S4 and repeats the process.

  If it is determined in S43 that the re-enlargement determination z-axis distance threshold 1 excess flag is true, whether or not the indicator has moved in the direction approaching the display surface 43 beyond the re-enlargement determination z-axis distance threshold 2 is determined. Determine (S46). If it is determined in S46 that the re-enlargement determination z-axis distance threshold 2 has moved, the enlargement possible flag is set to true (S47), and the re-enlargement determination z-axis distance threshold 1 excess flag is set to false. (S48), returning to S4, the process is repeated. If it is not determined in S46 that the re-enlargement determination z-axis distance threshold 2 has been moved, the process directly returns to S4 and the process is repeated.

  With the above processing, when the information display device 1c transitions from the contact state to the proximity state, the operating body moves in a direction away from the display surface 43 beyond the re-enlargement determination z-axis distance threshold 1, and then the re-enlargement determination z The enlargement function is disabled until it is determined that the axis distance threshold value 2 has been exceeded and the display surface 43 has been moved closer to the display surface 43.

  In the proximity state (within a predetermined range), the operation body moves away from the display surface in the vertical direction and then approaches again may be a clear operation by the user in the proximity state (magnification change). Many. According to the information display device 1b, after moving in the direction away from the display surface exceeding the re-enlargement determination z-axis distance threshold 1, when moving in the direction approaching the display surface beyond the re-enlargement determination z-axis distance threshold 2, The invalidation will be cancelled. Therefore, it is possible to perform a magnification change display in accordance with a clear operation in the proximity state by the user, that is, in accordance with the user's will.

[Embodiment 4]
Still another embodiment of the present invention will be described with reference to FIGS. The information display device 1c of the present embodiment has the same configuration as the information display device 1 of the first embodiment. Therefore, the configuration of the information display device 1c is represented in FIG. In the information display device 1c, members having the same functions as those described in the first embodiment are given the same reference numerals, and the description thereof is omitted.

  In the information display device 1c, in addition to the functions of the information display device 1, the control unit 2 measures time. Or you may provide the time measurement part which measures time.

  In the information display device 1c, the function disabling unit 23 disables the magnification changing function, and uses the magnification changing function until the validation condition is satisfied, with the passage of a predetermined time as an activation condition of the magnification changing function. Maintain invalidation of.

  The invalidation and validation of the magnification changing function in the information display device 1c will be described visually with reference to FIG. Since (a) and (b) of FIG. 10 are the same as (a) and (b) of FIG. 2, description thereof is omitted. After the state shown in (b) of FIG. 10, as shown in (c) of FIG. 10, the time after invalidating the magnification changing function is expanded until the time threshold (predetermined time) has elapsed. The function remains disabled and does not expand. As shown in FIG. 10 (d), after the time threshold (predetermined time) has elapsed, the validation condition is satisfied, so the enlargement function is deactivated and activated. That is, it can be enlarged.

(Processing flow when displaying magnification change)
Next, the flow of processing of the control unit 2 when displaying the magnification change of the information display device 1c will be described with reference to FIG. Here, the magnification change display will be described as an enlarged display.

  Since the processing from S1 to S9 in the information display device 1c is the same as the processing from S1 to S9 in the information display device 1, description thereof is omitted. In the information display device 1c, after S9, it is determined that the state determination unit 21 has transitioned from the contact state to the proximity state. In other words, the time when the proximity is detected for the first time after the contact is released (time A) is stored in the storage unit 3. Store (S51) and proceed to S10. The processing from S10 to S21 in the information display device 1c is the same as the processing from S10 to S21 in the information display device 1 except for the processing when the enlargement possible flag is determined to be false in S13. Description is omitted.

  In the information display device 1c, when the enlarging flag is determined to be false in S13, the current time (referred to as time B) is stored in the storage unit 3 (S52), and a value obtained by subtracting time A from time B (formula) Then, it is determined whether (time B-time A)) is equal to or greater than the time threshold (S53). If it is determined in S53 that it is equal to or greater than the time separation threshold, the enlargement possible flag is set to true (S54), the process returns to S4, and the process is repeated. If it is determined in S53 that the time threshold is not greater than or less than the time threshold, the process returns to S4 and the process is repeated.

  As a result of the above processing, when the information display device 1c transitions from the contact state to the proximity state, the information display device 1c is expanded until it is determined that the time after disabling the magnification changing function is equal to or greater than the time threshold (a predetermined time has elapsed). The function is disabled.

  According to the information display device 1c, since the magnification changing function is validated after a predetermined time has elapsed, the magnification changing display can be performed again by setting the proximity state after the predetermined time.

  In particular, when the operating tool is in the proximity state even after a predetermined time has elapsed, it is often due to the user trying to perform the proximity operation. Therefore, it is possible to perform display that is easy for the user to view by changing the magnification again after a predetermined time has elapsed.

[Example of software implementation]
In particular, the control unit 2 of the information display devices 1, 1a, 1b, and 1c may be realized by a logic circuit (hardware) formed in an integrated circuit (IC chip) or the like, or using a CPU (Central Processing Unit). It may be realized by software.

  In the latter case, the information display devices 1, 1a, 1b, and 1c have a CPU that executes instructions of a program that is software for realizing each function, and the program and various data are recorded so as to be readable by a computer (or CPU). A ROM (Read Only Memory) or a storage device (these are referred to as “recording media”), a RAM (Random Access Memory) for expanding the program, and the like are provided. And the objective of this invention is achieved when a computer (or CPU) reads the said program from the said recording medium and runs it. As the recording medium, a “non-temporary tangible medium” such as a tape, a disk, a card, a semiconductor memory, a programmable logic circuit, or the like can be used. The program may be supplied to the computer via an arbitrary transmission medium (such as a communication network or a broadcast wave) that can transmit the program. The present invention can also be realized in the form of a data signal embedded in a carrier wave in which the program is embodied by electronic transmission.

[Summary]
An information display device (1) according to aspect 1 of the present invention includes a display surface (43) for displaying an image, a detection unit (sensor unit 41) for detecting at least contact and proximity of the operating body to the display surface, Whether the operation body is in contact with the display surface based on the detection result by the detection unit, or is the proximity state where the operation body is located in a region less than a predetermined distance from the display surface , And a magnification changing function for changing the display magnification of the image and displaying it on the display surface when the state determining means determines that the proximity state is present. Display control means (display control unit 22) having the above, and when the state determination means determines that the contact state, the magnification change function is disabled until an enabling condition for enabling the magnification change function is satisfied. Includes a function inactivation means of (function inactivation unit 23), the.

  According to the above configuration, until the validation condition is satisfied, after the touch state is determined (after touch) by disabling the magnification change function for changing the display magnification and displaying on the display surface, for example, the finger Even when the operating body such as is in the proximity state, the magnification change display of the image is not performed. Therefore, it is possible to stop the change in magnification and perform display that is easy for the user to visually recognize. Further, when the validation condition is satisfied, the magnification change display of the image can be performed again, and a convenient operation can be provided to the user.

  Thus, according to the above configuration, it is possible to provide an information display device with good operability and capable of changing the display magnification by a proximity operation.

  In the information display device (1) according to aspect 2 of the present invention, in the aspect 1, the state determination means is further in a non-proximity state in which the operating body is located in an area of the predetermined distance or more from the display surface. The function invalidation means maintains the invalidation until the validation condition is satisfied, with the validation condition being that the state judgment means has determined that the non-proximity state is present. May be.

  According to the above configuration, the magnification change function is enabled when the operating body is in a non-proximity state where the operating body is located in an area of a predetermined distance or more. Therefore, the magnification change display is performed again by moving the operating body to the non-proximity state. be able to.

  The information display device (1a) according to aspect 3 of the present invention includes the movement distance measuring means (movement distance measuring unit 24) for measuring the movement distance of the operating body in the aspect 1, and the function invalidating means includes: The activation condition is defined as the activation condition that the movement distance measured by the movement distance measurement means of the operating body determined to be in the proximity state by the state determination means has reached a predetermined movement distance. The invalidation may be maintained until satisfied.

  According to the above configuration, the magnification change function is activated when the movement distance along the display surface of the operation body becomes equal to or greater than the predetermined movement distance. Therefore, the magnification is again obtained by moving the operation body over the predetermined movement distance along the display surface. Change display can be performed.

  In the information display device (1a) according to aspect 4 of the present invention, in the aspect 3, the moving distance measuring unit is along the display surface of the operating body determined to be in the proximity state by the state determining unit. The travel distance may be measured.

  The movement of the operating body in the proximity state in the direction along the display surface is often due to the user searching for the contact position on the display surface. According to the above configuration, the invalidation is canceled when the moving distance in the vertical direction exceeds a predetermined moving distance. Therefore, when it can be considered that the user is looking for the contact position, the display can be easily displayed by changing the magnification again.

  In the information display device (1a) according to the fifth aspect of the present invention, in the third aspect, the moving distance measuring unit is configured to be applied to the display surface of the operating body that is determined to be in the proximity state by the state determining unit. Then, the moving distance in the vertical direction may be measured.

  According to the above configuration, the magnification changing function is activated when the movement distance in the vertical direction with respect to the display surface of the operation body becomes equal to or greater than the predetermined movement distance, so that the operation body is moved more than the predetermined movement distance with respect to the display surface. The magnification change display can be performed again with.

  In the information display device (1b) according to aspect 6 of the present invention, in the aspect 1, the state determination unit further specifies the position of the operation body in a direction perpendicular to the display surface, thereby operating the operation body. The function disabling means determines that the operation disabling means moves the operating body away from the display surface beyond a first position that is a predetermined distance in the vertical direction from the display surface. After the movement, the validation condition is satisfied with the validation condition that it has been determined that the second position is closer to the display surface than the first position and moved in the direction approaching the display surface. The invalidation may be maintained until.

  In the proximity state (within a predetermined range), the operation body moves away from the display surface in the vertical direction and then approaches again may be a clear operation by the user in the proximity state (magnification change). Many. According to the above configuration, the invalidation is canceled when moving in a direction away from the display surface beyond the first position and then moving in a direction approaching the display surface beyond the second position. Therefore, it is possible to perform a magnification change display in accordance with a clear operation in the proximity state by the user, that is, in accordance with the user's will.

  In the information display device (1c) according to the aspect 7 of the present invention, in the aspect 1, the function invalidation means uses the fact that a predetermined time has elapsed after invalidating the magnification changing function as the activation condition. The invalidation may be maintained until the validation condition is satisfied.

  According to the above configuration, since the magnification changing function is validated after a predetermined time has elapsed, the magnification changing display can be performed again by setting the proximity state after the predetermined time.

  In addition, the information display device according to each aspect of the present invention may be realized by a computer. In this case, the information display device is realized by the computer by operating the computer as each unit included in the information display device. A control program for the information display device and a computer-readable recording medium on which the control program is recorded also fall within the scope of the present invention.

  An information display method according to an aspect 8 of the present invention is an information display method in an information display device having a display surface for displaying an image, and a detection unit that detects at least the contact and proximity of the operating body to the display surface. Whether or not the operating body is in contact with the display surface and whether or not the operating body is in a proximity state located in a region less than a predetermined distance from the display surface. A state determination step for determining, and a display control for performing a magnification change display for changing the display magnification of the image and displaying it on the display surface when it is determined by the state determination step that the state has shifted from the proximity state to the proximity state. And when the state is determined to be in the contact state by the state determination step, the display until the validation condition for enabling the magnification change display function is satisfied. It includes a disabling step of disabling the function of the scaled display of your step.

  According to the above method, the same effects as those of the information display device can be obtained, the user operability can be improved, and information display in which the display magnification can be changed by the proximity operation can be performed.

  The present invention is not limited to the above-described embodiments, and various modifications can be made. The embodiments of the present invention can also be obtained by appropriately combining technical means disclosed in different embodiments. Included in the range. Furthermore, a new technical feature can be formed by combining the technical means disclosed in each embodiment.

  The present invention can be used, for example, for an information display device equipped with a touch panel such as a smartphone, a tablet terminal, or a navigation device.

1, 1a, 1b, 1c Information display device 2 Control unit 3 Storage unit 4 Display operation unit 21 State determination unit (state determination means)
22 Display control unit (display control means)
23 Function invalidation part (function invalidation means)
24 Moving distance measuring unit (moving distance measuring means)
41 Sensor part 42 Display part 43 Display surface

Claims (10)

A display surface for displaying an image;
A detection unit for detecting at least contact and proximity of the operating body to the display surface;
Whether the operation body is in contact with the display surface based on the detection result by the detection unit, or is the proximity state where the operation body is located in a region less than a predetermined distance from the display surface , At least state determination means for determining,
A display control unit having a magnification change function for changing the display magnification of the image and displaying it on the display surface when the state determination unit determines that the proximity state is present;
When it is determined by the state determination means that the contact state has shifted to the proximity state, function invalidation means for invalidating the magnification change function until an activation condition for validating the magnification change function is satisfied. An information display device comprising: The state determination means further determines whether or not the operating body is in a non-proximity state located in an area of the predetermined distance or more from the display surface,
The function disabling means maintains the disabling until the enabling condition is satisfied, with the enabling condition being determined as being in the non-proximity state by the state determining means. The information display device according to claim 1. A moving distance measuring means for measuring the moving distance of the operating body;
The function disabling unit determines that the moving distance measured by the moving distance measuring unit of the operating body determined to be in the proximity state by the state determining unit has reached a predetermined moving distance. The information display device according to claim 1, wherein the invalidation is maintained until the validation condition is satisfied.   4. The information display apparatus according to claim 3, wherein the moving distance measuring unit measures a moving distance along the display surface of the operating body determined to be in the proximity state by the state determining unit. .   The said movement distance measurement means measures the movement distance of the orthogonal | vertical direction with respect to the said display surface of the said operating body determined as the said proximity | contact state by the said state determination means. Information display device. The state determination means further determines a moving state of the operating body by specifying a position in a direction perpendicular to the display surface of the operating body,
The function invalidation means moves the first operating body after the operating body moves in a direction away from the display surface beyond a first position that is a predetermined distance away from the display surface in a vertical direction by the state determination means. The invalidation is maintained until the validation condition is satisfied, with the validation condition being determined to have moved in a direction approaching the display surface beyond the second position closer to the display surface than the position. The information display device according to claim 1.   The function invalidation means maintains the invalidation until the validation condition is satisfied, assuming that a predetermined time has elapsed after invalidating the magnification changing function. The information display device according to claim 1.   The program for functioning a computer as said each means of the information display apparatus of any one of Claim 1 to 7.   A computer-readable recording medium on which the program according to claim 8 is recorded. An information display method in an information display device having a display surface for displaying an image,
Based on a detection result by a detection unit that detects at least contact and proximity of the operating body to the display surface, the operating body is in contact with the display surface, and the operating body is in the display surface A state determination step for determining at least whether the proximity state is located in an area less than a predetermined distance from
A display control step for performing a magnification change display for changing the display magnification of the image and displaying it on the display surface when it is determined by the state determination step that the state has shifted from the proximity state to the proximity state;
An invalidation step of invalidating the magnification change display function by the display control step until an activation condition for validating the magnification change display function is satisfied when the state determination step determines the contact state; An information display method comprising:

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