JP6230062B2 - Information processing device - Google Patents

Description

  The present invention relates to an information processing apparatus including a touch panel input screen, and more particularly to an information processing apparatus that prevents erroneous input to a touch panel.

  In recent years, various information processing apparatuses such as portable information terminals such as mobile phones and smartphones, AV equipment such as ATMs, ticket machines, game machines, and music players, and in-vehicle equipment including navigation devices, are provided with a display screen provided with a touch panel. In addition, it is possible to input information by screen contact using an input device such as a finger or a contact pen. In an information processing apparatus including such a touch panel input screen, various techniques have been proposed in order to prevent erroneous input due to contact with the touch panel unintended by the user (for example, Patent Documents 1 to 3). .

JP2013-89212A JP 2013-175138 A JP 2012-208633 A

  In the mobile terminal described in Patent Document 1, the peripheral edge of the display screen is set as a low sensitivity region, thereby preventing malfunction caused by the contact of the finger with the peripheral edge of the display screen when gripping the mobile terminal. In the terminal device described in Patent Document 2, attention is alerted to the user by suppressing icons and character keys having a large number of erroneous operations on the screen to low sensitivity. Moreover, in the information terminal described in Patent Document 3, the display mode is changed so as to widen the interval between the selected icon and another adjacent icon in order to prevent an erroneous operation.

  However, even if the techniques described in Patent Documents 1 to 3 described above are used, an erroneous input operation of erroneously touching another button adjacent to the target link button, menu button, or the like can be prevented quickly and accurately. I can't. If an adjacent button is accidentally touched, an unintended process is executed, and unnecessary operations such as cancellation of the process and re-execution of the operation occur. Conventionally, in order to avoid such an erroneous input, a complicated operation such as performing an enlargement operation by pinching out on the screen and performing an accurate touch on a target button has been required.

  The present invention has been made in view of such circumstances, and provides an information processing apparatus capable of preventing erroneous input to buttons displayed on a screen having a touch panel.

In order to solve the above problems, an information processing apparatus according to the present invention is compatible with a display panel including a display panel having a display section on which information selection items are displayed, a touch panel disposed on the display panel, and the display section. Touch panel control means for setting an input area due to contact on the touch panel; and touch panel detection means for generating a detection signal when a change amount of a predetermined physical quantity due to contact with the input area exceeds a predetermined threshold; Selection information execution means for receiving the detection signal transmitted from the touch panel detection means and executing selection information corresponding to the information selection item, wherein the touch panel control means is a first information selection item based on a predetermined information selection item. The first input when the distance between the first input area and the second input area by another adjacent information selection item is equal to or less than a predetermined distance Set-pass and low-sensitivity region is less sensitive than the range of the central portion of the predetermined range of the boundary around in each input region of the second input region, further, the touch panel control means, the first input region When the area is larger than the area of the second input region, a portion of the predetermined range around the boundary set in the low sensitivity region that faces the second input region Configured to extend .

  According to such a structure, about the 1st input area on the touch panel of the information selection item displayed on the display screen, the space | interval with the 2nd input area of another adjacent information selection item is below predetermined distance. In some cases, a predetermined range around the boundary of each input area of the first input area and the second input area is set as a low sensitivity area that is less sensitive than the center. Press the position away from the center of the area, that is, the part between the target first input area and the adjacent second input area, and at the end of the second input area of another adjacent information selection item Even if it is touched, it is set in the low sensitivity region, so that it is difficult to detect and leads to prevention of erroneous input. In addition, since the predetermined range around the boundary in the input area is set as the low sensitivity area, the user presses the vicinity of the center of the input area that is not low sensitivity, which further prevents erroneous input.

  When the distance between the first input area of the target information selection item and the second input area of another adjacent information selection item is not less than a predetermined distance, that is, there is a sufficient distance, If there is no risk of touching the input area of another adjacent information selection item even when the end of the first input area of the information selection item is pressed, the low sensitivity area need not be set. To do.

  Examples of the information processing apparatus according to the present invention include portable information terminals such as mobile phones and smart phones, AV equipment such as ATMs, ticket vending machines and music players, and in-vehicle equipment including a navigation device, etc. Equivalent to. The information selection items on the display screen are information selection instructions including operation instruction buttons, input instruction buttons, link buttons, and the like.

Further, when the information selection items are adjacent to each other, the first input region of the information selection item having the larger area of the input region is on the side facing the second input region of the other information selection item having a smaller area. When the predetermined range around the boundary in the first input area is expanded, that is, when the area of the input area of the adjacent information selection item is large or small by expanding the low sensitivity area, the first and second inputs When touching between areas, priority is given to contact with a small input area. Thereby, it is easy to input by touching the input area having a small area, and erroneous input to the large input area can be prevented.

An information processing apparatus according to the present invention includes a display panel having a display section on which information selection items are displayed, a display unit including a touch panel disposed on the display panel, and an input area by contact corresponding to the display section. From the touch panel control means for setting on the touch panel, the touch panel detection means for generating a detection signal when the amount of change in the predetermined physical quantity due to contact with the input area exceeds a predetermined threshold, and the touch panel detection means Selection information executing means for receiving the transmitted detection signal and executing selection information corresponding to the information selection item, wherein the touch panel control means includes a first input area based on a predetermined information selection item, The first input area and the second input area when the distance between the second input area and other adjacent information selection items is equal to or smaller than a predetermined distance. Reduces continuously sensitivity of the touch panel in accordance with the input area to the distance away from the center of a structure in which the low sensitivity region.

  According to such a configuration, since the sensitivity is reduced according to the distance from the center of the input area, it is possible to prevent erroneous input due to erroneous contact with the end of the input area of the information selection item. Have a habit of pressing the center of the button. In addition, when the input areas of adjacent information selection items are in a size relationship, the larger the input area is, the lower the end thereof is, and the easier it is to input by touching the input area with a small area, and An erroneous input to a large input area can be prevented. Further, when the input areas of the adjacent information selection items are the same size and are not in a size relationship, the sensitivity of both input areas is the same, so that the operation can be performed without impairing the operability.

Furthermore, since the sensitivity of the touch panel is continuously reduced according to the distance away from the center of the input area, even when the input area having a small area is adjacent to the input area having a large area, the end of the input area is Since the end of the input area having a large area has a lower sensitivity, input to the input area having a small area is given priority when both ends are touched.

  In the information processing apparatus according to the present invention, the touch panel control means may be configured to reduce the sensitivity of the touch panel at each predetermined stage in accordance with a predetermined distance away from the center of each input area to make it a low sensitivity area. it can.

  By adopting such a configuration, each input area is a low-sensitivity area that reduces the sensitivity of the touch panel for each predetermined step according to a predetermined distance away from the center, compared to a case where the sensitivity is continuously reduced. Can be set easily and simply.

  In the information processing apparatus according to the present invention, the touch panel control means may set the low sensitivity region by setting the threshold value high in the input region.

  According to such a configuration, for example, if the touch panel is a capacitance type, the amount of change in capacitance is set as a detection amount, and the threshold value is set to a lower threshold value and the threshold value near the boundary of the input region away from the center is set. By increasing the height, a predetermined range away from the center can be set as a low sensitivity region. Note that the threshold value can be set to increase continuously or stepwise according to the distance from the center. In addition to the capacitance type, in the case of an ultrasonic type, pressure sensitive type, or light detection type touch panel, a threshold value is set for the amount of change in the detected value of the ultrasonic wave, the detected value of the pressure, and the detected value of the light amount. By setting and setting the center as a low threshold and setting a predetermined range away from the center as a high threshold, the predetermined range away from the center can be set as the low sensitivity region.

  In the information processing apparatus according to the present invention, the touch panel control means sets the threshold detection time range, which is a condition for generating the detection signal by the touch panel detection means, in the input area to be long. It can be set as the structure which sets a sensitivity area | region.

  According to such a configuration, for a predetermined range away from the center of the input region, a low sensitivity region in which the sensitivity is lower than the center by setting the detection time of the threshold that is a condition for generating the detection signal to be longer. It can be. Note that the time required for detection can be set to increase continuously or stepwise according to the distance from the center.

  According to the information processing apparatus of the present invention, the predetermined range around the boundary in the input area on the touch panel corresponding to the information selection item displayed on the display screen is set to the low sensitivity area that is less sensitive than the center. Therefore, press the position away from the center of the input area of the target information selection item, that is, the part between the target input area and the adjacent input area, and Even if the edge is touched, it is difficult to detect because it is set in the low sensitivity region, and it is possible to prevent erroneous input.

  In addition, by making the input area a low-sensitivity area according to the distance from the center, even when large and small input areas are adjacent to each other, the input area having a large area is less sensitive at the end of the input area. Therefore, when both ends of the large and small input areas are touched, the input to the input area having a small area can be secured with priority.

FIG. 1 is a block diagram showing a configuration of an in-vehicle device as an information processing apparatus according to an embodiment of the present invention. FIG. 2A is a flowchart showing a processing procedure (part 1) by the processing unit of the in-vehicle device as the information processing apparatus according to the embodiment of the present invention. FIG. 2B is a flowchart showing a processing procedure (part 2) by the processing unit of the in-vehicle device as the information processing apparatus according to the embodiment of the present invention. FIG. 3 is a schematic diagram (part 1) of the display unit of the in-vehicle device as the information processing apparatus according to the embodiment of the present invention. FIG. 4 is a schematic diagram (part 2) of the display unit of the in-vehicle device as the information processing apparatus according to the embodiment of the present invention. FIG. 5A is a diagram schematically showing the sensitivity state of the sensitivity region on the touch panel. FIG. 5B is a schematic diagram in which the sensitivity state of the sensitivity region of each large and small button is displayed on the touch panel.

  Embodiments of the present invention will be described with reference to the drawings.

  An in-vehicle device 100 as an information processing apparatus according to an embodiment of the present invention is configured as shown in FIG.

  In FIG. 1, an in-vehicle device 100 includes various buttons (information selection items) such as an input button, an operation button, and a link button on a screen, and an LCD, an organic EL, and the like that display images, map information, and the like accompanying various information processing. The display unit 15 (display means) includes a display 12 (display panel) configured and a touch panel 13 disposed on the surface of the display 12. Furthermore, the in-vehicle device 100 includes a processing unit 16 configured by a computer unit (for example, CPU, MPU). Connected to the processing unit 16 are an AV unit 17 capable of reproducing various sound sources and video sources (for example, CD and DVD) and a navigation unit 18 capable of navigating the host vehicle. Further, an output circuit 21 connected to the speaker 20 is connected to the processing unit 16. As a result, audio signals related to processing by the AV unit 17 and the navigation unit 18 can be output from the speaker 20 via the output circuit 21. In addition, the processing unit 16 includes a storage unit 23 (for example, a hard disk) capable of storing various information such as music information and map information used in the AV unit 17 and the navigation unit 18 and various information corresponding to the various buttons described above. , Flash memory, etc.) are connected.

  The touch panel 13 disposed on the surface of the display 12 is a pointing device that detects a change in capacitance between electrodes that occurs when an input device such as a finger or a touch pen touches the surface, and a display on which various buttons are displayed. 12 is arranged on the front surface. The touch panel 13 is provided with an input area corresponding to each display category for displaying various buttons displayed on the display 12, and when a predetermined input area is touched with a finger or a touch pen, a button corresponding to the input area is provided. A program or the like related to is executed. Note that the touch panel 13 is not limited to the capacitance type described above, and may employ an ultrasonic type, a pressure sensitive type, a light detection type, or the like.

  The processing unit 16 has a function of setting an input area on the touch panel 13 corresponding to the display category of various buttons (information selection items) displayed on the display 12 by executing a predetermined computer program (touch panel). Control means). Further, the processing unit 16 similarly has a function of generating a detection signal when the amount of change in a predetermined physical quantity due to contact with the input area exceeds a predetermined threshold by executing a predetermined computer program (touch panel detection). means). In addition, the processing unit 16 has a function of receiving the detection signal and executing a computer program (selection information) corresponding to various buttons (information selection items) (selection information execution means). The selection information executing means that has received the detection signal by touching various buttons displays a user's desired screen or starts a desired application program by executing a computer program (selection information) corresponding to the various buttons, for example. .

  The operation of the in-vehicle device 100 as the information processing apparatus according to the embodiment of the present invention will be described with reference to FIGS. 2A and 2B showing the procedure. In the description of the procedure, in addition to FIG. 1 showing the configuration, FIGS. 3 to 5 which are schematic diagrams of the display unit are appropriately referred to.

  For example, as illustrated in FIG. 3, various buttons 31, 32, 33, 34, and 35 that are information selection items are displayed on the display 12 of the display unit 15 of the in-vehicle device 100. These buttons 31 to 35 are an input button for inputting predetermined information, an operation button for performing predetermined operation, a link button for linking to predetermined information, and the like, and the display is divided by a rectangular frame (display classification). ). In the buttons 31 to 35, symbols (icons) such as pictures and characters representing the contents of the information selection items are described in a rectangular frame (not shown) so that information selection is easy.

  A touch panel 13 is disposed on the surface of the display 12 so as to cover substantially the entire surface, and input areas 31 a, 32 a, 33 a, 34 a, and 35 a corresponding to sections for displaying the buttons 31 to 35 are buttons 31. The touch panel 13 is set so as to be substantially the same position as .about.35. By touching any of the input areas 31a to 35a of the touch panel 13 with a finger, a touch pen, or the like, the corresponding buttons 31 to 35 are selected, and operations corresponding to the buttons 31 to 35 are started. It has become.

  As shown in FIG. 2A, the processing unit 16 determines whether or not the input area of the target button and the input area of the button adjacent thereto are within a predetermined distance (S11: touch panel control means). . This predetermined distance means, for example, the length of the finger touching the touch panel 13, and touches both input areas when the distance between the input areas is less than the finger width. Since erroneous input occurs, a low sensitivity region is set as will be described later in order to prevent erroneous input. Therefore, for example, when the target button is the input area 35a of the button 35 displayed on the display 12 of FIG. 3, the input area of the other buttons 31 to 34 has a sufficient distance (predetermined distance <shortest button 32). Therefore, it is not necessary to provide a low-sensitivity area in the input area, and the input area 35a has a uniform sensitivity. (S12). For example, as shown in FIG. 3, when the target button is the button 32, the distance W2, W3 (predetermined distance> W2) between the input area 32a and the input areas 31a, 33a of the adjacent buttons 31, 33 , W3) is determined to be equal to or shorter than the predetermined distance (YES in S11).

  When the input area of the target button is equal to or less than the predetermined distance from the input area of the adjacent button (YES in S11), the processing unit 16 is arranged around the boundary in each input area of the button adjacent to the target button. It is determined based on the setting information stored in the storage unit 23 whether or not the predetermined range is set to a low sensitivity region whose sensitivity is lower than the range of the central portion (S13: touch panel control means).

  When the processing unit 16 determines that the predetermined range around the boundary of each input region of the button adjacent to the target button is set as a low sensitivity region having a lower sensitivity than the range of the central portion (YES in S13), further Based on the setting information stored in the storage unit 23, it is determined whether any of the adjacent input areas is an input area having a large size, and the low sensitivity area is extended and set to the large input area. (S14: Touch panel control means). When adjacent input areas have the same size and are not in a size relationship, or when a low sensitivity area is not expanded and set to a large input area even if they are in a size relationship (NO in S14), the processing unit 16 is adjacent. A predetermined range around the boundary in each input region is set to be lower in sensitivity than the range of the central portion (S15: touch panel control means).

  As shown in FIG. 3, for the input areas 31a, 32a, 33a, and 34a of the buttons 31, 32, 33, and 34, the central portions 31b, 32b, 33b, and 34b (the dark black portions on the drawing) are sensitive. Predetermined portions 31c, 32c, 33c, and 34c (light black portions on the drawing) around the boundary in the input region that are high and in the vicinity of the square frame are set as low sensitivity regions (S15). In this way, by setting the periphery of the boundary in the input area as the low sensitivity area, for example, when the target button is the button 32 and the portion 32c around the boundary in the input area is touched, other adjacent buttons Although the portions 31c and 33c around the boundary in the input region 31 and 33 may be touched, the portions 31c, 32c and 33c around the boundary in the input region are set in the low sensitivity region, so that they are detected. It is difficult to prevent erroneous input. When the area of the input region is relatively large as in the input region 31a, the inner portion 31b1 of the central portion, the outer portion of the central portion, for example, the outer portion 31b2 of the central portion 31b is made less sensitive than the inner portion 31b1. The low sensitivity may be set step by step with 31b2 and the portion 31c around the boundary.

  In order to make the portions 31c, 32c, 33c, and 34c around the boundary in the input area low sensitivity areas, for example, the touch panel 13 detects a change in electrostatic capacity caused by contact with the touch panel 13. When the method is used, the threshold value to be detected is set to be low in the central portions 31b, 32b, 33b, and 34b in the input region and high in the portions 31c, 32c, 33c, and 34c around the boundary in the input region. It becomes possible (touch panel detection means). When the threshold value of the detection value is high, it becomes more difficult to detect the amount of change in capacitance due to contact than when the threshold value is low, and so-called contact sensitivity becomes low. In addition to making the threshold settings different, it is also possible to provide a difference in threshold detection time. For example, the time required for detection of the threshold is set so that it is short in the central portions 31b, 32b, 33b, and 34b in the input region and long in the portions 31c, 32c, 33c, and 34c around the boundary in the input region. It is possible to set the low sensitivity area.

  In the case where the low sensitivity area is expanded and provided in the input area having a large area (YES in S14), the processing unit 16 is included in a predetermined range (low sensitivity area) around the boundary in the input area of the larger input area. The portion facing the adjacent small input area is expanded to widen the low sensitivity area (S16: touch panel control means). For example, as shown in FIG. 4, for the input area 31 a having a large area, the predetermined range 31 c around the boundary in the input area is changed to the low sensitivity area, and further, the predetermined area 31 c around the boundary in the input area The portions 31p, 31q, 31r facing the small input regions 32a, 33a, 34a are expanded as low sensitivity regions (light black portions facing the input regions 32a, 33a, 34a of the input region 31a in FIG. 4). . Thus, by extending the low sensitivity area to the larger area of the input area, for example, when both the small input area 32a and the large input area 31a are touched, priority is given to the small input area where input by contact is more difficult. Since it detects, the usability of touch panel use can be improved.

  Next, based on the setting information stored in the storage unit 23, when a predetermined range around the boundary of each input region of the button adjacent to the target button is set as a low sensitivity region having a lower sensitivity than the range of the central portion 2 is not selected (NO in S13), as shown in FIG. 2B, the processing unit 16 reduces the sensitivity of the touch panel according to the distance from the center of each input area of the button adjacent to the target button. It is determined whether or not the low sensitivity region is to be set (S17: touch panel control means). When it is selected not to set a low sensitivity area that reduces the sensitivity of the touch panel according to the distance from the center of the input area for each input area (NO in S17), the sensitivity is uniform for each input area. It becomes an area (S12).

  On the other hand, when performing setting of a low sensitivity region that reduces the sensitivity of the touch panel according to the distance away from the center of the input region for each input region based on the setting information stored in the storage unit 23, The processing unit 16 sets a low sensitivity area according to the distance from the center of the input area (S18: touch panel control means). In setting the low sensitivity area, the sensitivity of the touch panel is continuously reduced according to the distance away from the center of each input area, and the sensitivity of the touch panel is predetermined according to the predetermined distance away from the center of each input area. In any case, the processing unit 16 calculates the distance from the origin with the center of the input area as the origin of coordinates, and the sensitivity of the touch panel according to the distance from the center (origin). (Touch panel control means).

  As shown in FIG. 5B, a description will be given of a case where the sensitivity region is reduced according to the distance from the center of each of the input regions 41 and 42 in the input region 41 having a large input region area and the input region 42 having a small input region area. . For convenience of explanation, in FIG. 5A, the circles 43 and the XY coordinate axes including the input areas 41 and 42 are drawn in order to overlap the input areas 41 and 42, match the center points, and clarify the distance from the center. The distance from the origin of the XY coordinate axis, which is the center of each input area 41, 42, to a predetermined point in the input area is calculated from the square root of the sum of the square of the X coordinate and Y coordinate of the predetermined point. The sensitivity of the touch panel at a predetermined point is lowered according to the distance from the center (touch panel control means). As described above, when the change in capacitance caused by the touch on the touch panel 13 is detected, the sensitivity is lowered by increasing the threshold value to be detected according to the distance from the center, thereby reducing the sensitivity. (Touch panel detection means). It is also possible to provide a difference in threshold detection time. For example, by increasing the time required for detecting the threshold according to the distance from the center, the sensitivity can be reduced according to the distance. It is possible to set continuously low sensitivity by gradually decreasing the sensitivity according to the distance from the center, and it is possible to set the stepwise low sensitivity by decreasing the sensitivity at a predetermined distance from the center. .

  As shown in FIG. 5A, each point included in the input area 42 with a small area is smaller in distance from the origin that is the center than the points included in the input area 41 with a large area. The sensitivity is higher than that of the input area 41. FIG. 5A and FIG. 5B are schematic diagrams in which a high sensitivity region is shown in dark black and a low sensitivity region is shown in light black.

  When setting a low-sensitivity area that is low-sensitivity according to the distance from the center of the input area (S18), as shown in FIG. 5B, the input area 42 having a small area is compared with the input area 41 having a large area. Since the predetermined range around the boundary in the input area has high sensitivity, when the vicinity of the boundary between both input areas is touched, the input of the input area 42 having a small area is detected preferentially ( Touch panel detection means), accurate selection information can be executed (selection information execution means). Therefore, since contact with a small input area can be easily performed without error, the in-vehicle device 100 having a display unit including a user-friendly input screen can be provided.

  As described above, according to the in-vehicle device 100 that is the information processing apparatus according to the embodiment of the present invention, when the adjacent input areas on the touch panel are equal to or smaller than the predetermined interval, the predetermined range around the boundary in the input area is centered. Therefore, even if the two adjacent input regions are touched by mistake, it is difficult to be detected and erroneous input can be prevented. Also, when there is a magnitude relationship between adjacent input areas, the low sensitivity area is expanded toward the large input area, so that input in the small input area is prioritized and easy to input. In addition, by setting the low sensitivity area to be low sensitivity according to the distance from the center of the input area, the input area at the end of the input area is more sensitive at the input area. Priority is given to easy input, and usability can be improved.

  Since the information processing apparatus according to the present invention sets a predetermined range around the boundary in the input area on the touch panel to a low sensitivity area that is lower in sensitivity than the center, even if the end portion in the input area is touched by mistake, This is effective as an information processing apparatus that has the effect of not causing an erroneous input and prevents erroneous input to the touch panel.

12 Display 13 Touch panel 15 Display section (display means)
16 processing unit 23 memory | storage part 31,32,33,34,35 button 31a, 32a, 33a, 3a4, 35a input area 100 vehicle equipment

Claims (4)

A display panel including a display panel on which information selection items are displayed and a touch panel disposed on the display panel;
Touch panel control means for setting an input area on the touch panel corresponding to the display category;
Touch panel detection means for generating a detection signal when a change amount of a predetermined physical quantity due to contact with the input area exceeds a predetermined threshold;
Selection information execution means for receiving the detection signal transmitted from the touch panel detection means and executing selection information corresponding to the information selection item,
When the distance between the first input area by a predetermined information selection item and the second input area by another adjacent information selection item is equal to or less than a predetermined distance, the touch panel control means A predetermined range around the boundary in each input area of the second input area is set to a low sensitivity area where the sensitivity is lower than the range of the central portion ,
Further, when the area of the first input area is larger than the area of the second input area, the touch panel control means is arranged around a boundary in the first input area set as the low sensitivity area. An information processing apparatus that extends a portion of the predetermined range that faces the second input area . A display panel including a display panel on which information selection items are displayed and a touch panel disposed on the display panel;
Touch panel control means for setting an input area on the touch panel corresponding to the display category;
Touch panel detection means for generating a detection signal when a change amount of a predetermined physical quantity due to contact with the input area exceeds a predetermined threshold;
Selection information execution means for receiving the detection signal transmitted from the touch panel detection means and executing selection information corresponding to the information selection item,
When the distance between the first input area by a predetermined information selection item and the second input area by another adjacent information selection item is equal to or less than a predetermined distance, the touch panel control means An information processing apparatus, wherein each input area of the second input area is made a low sensitivity area by continuously reducing the sensitivity of the touch panel according to a distance away from the center. The touch panel control unit, an information processing apparatus according to claim 1 or 2, characterized in that to set the low-sensitivity region by increasing setting the threshold value in the input region. The touch panel control means sets the low sensitivity area by setting a long detection time range of the threshold value that is a condition for generating the detection signal by the touch panel detection means in the input area. The information processing apparatus according to claim 1 or 2 .