JP5602651B2 - Electronics - Google Patents

Description

  The present invention relates to an electronic device capable of multistage input.

  In recent years, electronic devices including a contact detection unit such as a touch sensor or a touch switch are increasing as members for detecting an operation by an operator in a mobile terminal such as a mobile phone. In addition to portable terminals, electronic devices having a contact detection unit such as devices such as calculators and ticket machines, household appliances such as microwave ovens, televisions, and lighting devices, and industrial devices (FA devices) are widely used. .

  As such a contact detection unit, various methods such as a resistive film method, a capacitance method, and an optical method are known. Any type of contact detection unit detects contact with an operator's finger, stylus pen, or the like. In general, an electronic apparatus including a contact detection unit displays an image (hereinafter, referred to as “object”) such as operation keys and buttons on a display screen of a display unit disposed on the back surface of the contact detection unit. When the operator presses the object displayed on the display screen, the contact detection unit detects contact at the pressed position.

  There is also known a contact detection unit provided with a two-stage switch that can be pressed further after being pressed into the same pressed position. For example, in an example in which a two-stage switch is applied to the shutter button of a camera, focusing is performed by turning on the first-stage switch (so-called half-press), and turning on the second-stage switch (so-called full depression). To release the shutter. In the following description, pushing in n steps (n is an integer of 1 or more) to the same pressed position is referred to as n-stage input, and pushing in multiple stages is referred to as multi-stage input.

  Recently, a touch sensor that responds to a light pressing load is placed on top, and a touch sensor that responds to a heavy pressing load is placed on the bottom, so that when an operator applies a load, the upper touch sensor, A contact detection unit including a two-stage touch sensor configured to perform electrical connection in the order of the lower touch sensor is known. A two-stage touch sensor is applied to the shutter button of the camera. When the pressing load exceeds the first input acceptance load threshold value, it is determined that the press is half-pressed and the focus is adjusted. There is known a camera device that determines that it is fully pressed when the load threshold is exceeded, releases the shutter, and returns a predetermined tactile sensation at that time (for example, see Patent Document 1).

  In addition, in the contact detection unit where the pressure load threshold is set, when a pressure load exceeding the load threshold is applied and the state is maintained, it is pressed even if the input is maintained with the same force with a human finger. Power is gradually lost. Therefore, it is conceivable to separate the input acceptance load threshold, which is a load threshold for accepting input, and the input acceptance release load threshold, which is a load threshold for canceling input, and lower the input acceptance release threshold. . In this case, when the pressing load exceeds the first input acceptance load threshold, the first-stage input is accepted, and after the pressing load exceeds the first input acceptance load threshold, the first input acceptance release load threshold or less. Then, the first-stage input is canceled, and when the pressing load exceeds the second input acceptance load threshold, the second-stage input is accepted, and after the pressing load exceeds the input threshold 2, the input acceptance release load threshold 2 or less. Then, it operates to cancel the input of the second stage.

JP 2006-013661 A

  FIG. 12 is a diagram illustrating an example of the load threshold when the control that separates the input acceptance load threshold and the input acceptance release load threshold described above is applied to multistage input. FIG. 12 shows an example of the pressing load for the first-stage input and the pressing load for the second-stage input. As shown in FIG. 12, in the conventional electronic device, the intervals d1, d2, and d3 of the input acceptance load threshold value and the input acceptance release load threshold value in each stage number are set to be substantially equal.

  However, when the input is maintained with respect to the high input acceptance load threshold, since the amount of change that the pressing force is lost is large, the input acceptance release load threshold is different depending on whether the input acceptance load threshold is high or low. If the interval is the same, when the input acceptance load threshold is high, there arises a problem that the input acceptance is canceled although the operator does not intend. In the example shown in FIG. 12, the pressing load for the second-stage input has a larger amount of change than the pressing load for the first-stage input, and the input acceptance cancellation unintended by the operator occurs at the location indicated by the broken-line circle. doing.

  Therefore, an object of the present invention made in view of such circumstances is to provide an electronic device that can prevent an input acceptance cancellation unintended by an operator.

In order to solve the above problems, an electronic device according to the present invention is
An input surface;
A load detection unit for detecting a pressing load on the input surface;
When a pressing load that satisfies the input acceptance load criterion is detected by the load detection unit, an input is accepted, and after receiving the input, a pressing load that does not satisfy the input acceptance release load criterion is detected by the load detection unit, A control unit that controls to cancel the received input,
The control unit, when setting a plurality of the input acceptance load criteria, a first input acceptance load criteria and a first input acceptance release load for releasing the input accepted based on the first input acceptance load criteria A second input acceptance load criterion that is higher than the first input acceptance load criterion than the interval from the reference, and a second input acceptance cancellation for canceling the input received based on the second input acceptance load criterion The distance is controlled so as to increase the distance from the load reference.

Furthermore, in the electronic device according to the present invention,
Further comprising a pressing time measuring unit for measuring the pressing time of the same part of the input surface,
The control unit controls the interval when the pressing time measured by the pressing time measuring unit exceeds a predetermined time.

Furthermore, in the electronic device according to the present invention,
A pressing movement distance measuring unit that measures a movement distance of a pressing position when the input surface is pressed;
The control unit controls the interval when the movement distance measured by the pressing movement distance measurement unit exceeds a predetermined length.

Furthermore, in the electronic device according to the present invention,
An application determination unit for determining an application type;
The said control part controls the said space | interval according to the application determined by the said application determination part.

  According to the present invention, it is possible to maintain an input with a smaller pressing force than in the past, and it is possible to prevent an input reception cancellation unintended by the operator.

1 is a block diagram showing a schematic configuration of an electronic device according to a first embodiment of the present invention. It is a figure which shows an example of the mounting structure of the electronic device which concerns on the 1st Embodiment of this invention. It is a flowchart which shows operation | movement of the electronic device which concerns on the 1st Embodiment of this invention. It is a block diagram which shows schematic structure of the electronic device which concerns on the 2nd Embodiment of this invention. It is a figure which shows an example of the pressing load at the time of long press operation of the electronic device which concerns on the 2nd Embodiment of this invention, and a load threshold value. It is a flowchart which shows operation | movement of the electronic device which concerns on the 2nd Embodiment of this invention. It is a block diagram which shows schematic structure of the electronic device which concerns on the 3rd Embodiment of this invention. It is a figure which shows an example of the pressing load at the time of slide operation of the electronic device which concerns on the 3rd Embodiment of this invention, and a load threshold value. It is a flowchart which shows operation | movement of the electronic device which concerns on the 3rd Embodiment of this invention. It is a block diagram which shows schematic structure of the electronic device which concerns on the 4th Embodiment of this invention. It is a flowchart which shows operation | movement of the electronic device which concerns on the 4th Embodiment of this invention. It is a figure which shows an example of the pressing load and load threshold value in the conventional electronic device.

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

(First embodiment)
FIG. 1 is a block diagram showing a schematic configuration of an electronic apparatus according to the first embodiment of the present invention. As shown in FIG. 1, the electronic device 1 a includes a contact detection unit 10, a display unit 20, a load detection unit 30, a storage unit 40, a control unit 50, and a tactile sensation presentation unit 60.

  The display unit 20 displays an object such as a push button switch (push button switch) as an image. The push button switch is a button, a key, or the like used for an input operation by the operator. The display unit 20 is configured using, for example, a liquid crystal display panel (LCD), an organic EL display panel, or the like.

  The contact detection unit 10 is for receiving a multi-stage input by pressing the input surface 10a from the operator, and is usually arranged on the front surface of the display unit 20 and is the operator's finger for the object displayed on the display unit 20 The contact (or the release of the contact) by the contact object such as is detected on the input surface 10 a of the corresponding contact detection unit 10. Further, the contact detection unit 10 detects the position of contact with the input surface 10a and notifies the control unit 50 of the detected position of contact. The contact detection unit 10 is configured by a known method such as a resistance film method or a capacitance method.

  The load detection unit 30 detects a pressing load on the input surface 10a of the contact detection unit 10, and is configured using an element that reacts linearly with a load such as a strain gauge sensor or a piezoelectric element, for example. In addition, the load detection unit 30 notifies the control unit 50 of the detected pressing load on the input surface 10a.

  The storage unit 40 can be configured by a memory according to a known technique, and stores various input information, a program for operating the electronic device 1a, and the like, and also functions as a work memory. In particular, in the present embodiment, an input acceptance load threshold value that is a pressing load threshold value for accepting input and an input acceptance release load threshold value that is a pressing load threshold value for releasing input are stored for each input stage.

  The plurality of input acceptance load thresholds and the plurality of input acceptance cancellation load thresholds may be determined in advance, or different values may be set according to the operator by a learning function unit (not shown). Good. The learning function unit instructs the operator to press the input surface 10a of the contact detection unit 10, and records the variation of the pressing load when the input is maintained in each input stage. The pressing load gradually decreases after the input surface 10a is pressed, and becomes a substantially constant value (hereinafter referred to as a pressing load stable value) when a predetermined time has elapsed. The learning function unit stores a value lower than the pressing load stable value by a predetermined value in the storage unit 40 as the input acceptance release load threshold.

  When the load detection unit 30 detects a pressing load that satisfies the input reception load standard (exceeds the input reception load threshold), the control unit 50 receives an input. Then, after receiving the input, when the load detection unit 30 detects a pressing load that does not satisfy the input acceptance release load criterion (below the input acceptance release load threshold), the received input is controlled to be released.

  When a plurality of input acceptance load criteria are set, the control unit 50 cancels the input accepted based on the first (eg, first stage) input acceptance load criterion (input acceptance load threshold) and the first input acceptance load criterion. A second (for example, second-stage) input acceptance load criterion (input acceptance load) that is higher than the first input acceptance load criterion than the interval with the first input acceptance cancellation load criterion (input acceptance cancellation load threshold) (Threshold value) and the second input acceptance release load criterion (input acceptance release load threshold) for releasing the input received based on the second input acceptance load criterion. Note that when the pressing load is low, there is little fluctuation in the pressing load, so the interval between the first stage input acceptance load threshold and the first stage input acceptance release load threshold is zero, that is, even if both are equal values. Good.

  The tactile sensation providing unit 60 is configured using, for example, a piezoelectric vibrator or the like, and generates a vibration or the like according to a predetermined vibration pattern, thereby causing a “click” tactile sensation on a contact target that is in contact with the input surface 10a. Presenting a “bull bull” feel. The tactile sensation providing unit 60 can notify the operator whether or not the pressing load satisfies the input acceptance load standard of each stage. However, it is also possible to notify the operator by display on the display unit 20 or a voice output unit (not shown). In this case, the tactile sensation providing unit 60 may not be provided.

  2 shows an example of the mounting structure of the electronic device 1a shown in FIG. 1, FIG. 2 (a) is a sectional view of the principal part, and FIG. 2 (b) is a plan view of the principal part. The display unit 20 is housed and held in the housing 11. The contact detection unit 10 is held on the display unit 20 via an insulator 12 made of an elastic member. In electronic device 1a according to the present embodiment, display unit 20 and contact detection unit 10 are rectangular in plan view. In the present embodiment, the contact detection unit 10 is held on the display unit 20 via the insulators 12 disposed at the four corners deviated from the display area A of the display unit 20 indicated by phantom lines in FIG. .

  Further, the housing 11 is provided with an upper cover 13 so as to cover the surface area of the contact detection unit 10 deviated from the display area of the display unit 20, and an elastic member is provided between the upper cover 13 and the contact detection unit 10. An insulator 14 comprising:

  In addition, the contact detection part 10 shown in FIG. 2 comprises the surface member which has the input surface 10a, for example by the transparent film or glass, and comprises the back surface member by glass or acrylic. The contact detection unit 10 uses a structure in which, when the input surface 10a is pressed, the pressed portion is slightly bent (distorted) according to the pressing force, or the structure itself is bent slightly.

  On the surface of the contact detection unit 10, a strain gauge sensor 31 for detecting a load (pressing force) applied to the contact detection unit 10 is provided in the vicinity of each side covered with the upper cover 13 by bonding or the like. In addition, on the back surface of the contact detection unit 10, a piezoelectric vibrator 61 for vibrating the contact detection unit 10 is provided in the vicinity of two opposing sides by bonding or the like. That is, in the electronic device 1a shown in FIG. 2, the load detection unit 30 shown in FIG. 1 is configured using four strain gauge sensors 31, and the tactile sensation providing unit 60 is configured using two piezoelectric vibrators 61. Yes. And the input surface 10a is vibrated by vibrating the contact detection part 10 by the tactile sense presentation part 60. FIG. In FIG. 2B, the casing 11, the upper cover 13, and the insulator 14 shown in FIG. 2A are not shown.

  Next, the operation of the electronic apparatus 1a according to this embodiment configured as described above will be described. FIG. 3 is a flowchart showing the operation of the electronic apparatus 1a according to this embodiment. Here, the case of two-stage input will be described, and a tactile sensation will be presented when the pressing load exceeds the input acceptance load threshold.

  First, when the operation of the electronic device 1a starts, the control unit 50 monitors the contact with the contact detection unit 10 and monitors the load detected by the load detection unit 30 (step S101).

  In step S101, when contact with the contact detection unit 10 by a contact object such as an operator's finger is detected, the control unit 50 determines that the pressing load detected by the load detection unit 30 is the first-stage input acceptance load standard. Is satisfied, that is, whether or not the first-stage input acceptance load threshold acquired from the storage unit 40 is exceeded (step S102). Note that the load detection unit 30 detects the load from the average value of the outputs of the four strain gauge sensors 31, for example.

  In step S102, when the pressing load detected by the load detection unit 30 satisfies the first-stage input acceptance load standard, the control unit 50 stores the position of the contact as information such as coordinates, for example. 40 (step S103).

  And the control part 50 drives the tactile sense presentation part 60 with a predetermined drive signal, vibrates the contact detection part 10 with the predetermined vibration pattern set beforehand, and presents tactile feeling (step S104). The tactile sensation providing unit 60 drives, for example, two piezoelectric vibrators 61 in the same phase.

  Next, the control unit 50 sets the first-stage input acceptance release load reference. That is, the first-stage input acceptance release load threshold is acquired from the storage unit 40 and set (step S105).

  Thereafter, the control unit 50 waits until the pressing load detected by the load detection unit 30 satisfies the second-stage input acceptance load criterion, that is, exceeds the second-stage input acceptance release load threshold acquired from the storage unit 40. (Step S106). During standby, it is determined whether or not the pressing load detected by the load detection unit 30 satisfies the first stage input acceptance release load standard (step S107), and the first stage input acceptance release load standard is not satisfied. That is, the operation is terminated when the input acceptance release load threshold value obtained from the storage unit 40 is equal to or lower.

  In step S106, when the pressing load detected by the load detection unit 30 satisfies the second-stage input acceptance load standard, the control unit 50 drives the tactile sensation providing unit 60 with a predetermined drive signal in advance. The touch detection unit 10 is vibrated with the set predetermined vibration pattern to present a tactile sensation (step S108).

  Next, the control unit 50 sets the second-stage input acceptance release load reference. That is, the second-stage input acceptance release load threshold is acquired from the storage unit 40 and set (step S109).

  Finally, the control unit 50 determines that the pressing load detected by the load detection unit 30 does not satisfy the second-stage input acceptance release load criterion, that is, the second-stage input acceptance release load threshold acquired from the storage unit 40. Then, the operation is terminated (step S110).

  As described above, according to the electronic apparatus 1a of the present embodiment, the control unit 50 performs the first input for canceling the input received based on the first input acceptance load criterion and the first input acceptance load criterion. A second input acceptance load criterion higher than the first input acceptance load criterion than the interval with the acceptance cancellation load criterion, and a second input for canceling the input accepted based on the second input acceptance load criterion By controlling the interval so as to increase the interval with the acceptance cancellation load reference, it is possible to maintain the input with a smaller pressing force than in the past, and it is possible to prevent the input acceptance cancellation unintended by the operator. .

(Second Embodiment)
Next, an electronic apparatus according to a second embodiment of the present invention will be described. In addition, the same reference number is attached | subjected to the same component as the electronic device 1a of 1st Embodiment, and description is abbreviate | omitted.

  FIG. 4 is a block diagram illustrating a schematic configuration of the electronic apparatus according to the second embodiment. The electronic device 1b according to the present embodiment includes a contact detection unit 10, a display unit 20, a load detection unit 30, a storage unit 40, a control unit 50, a tactile sensation providing unit 60, and a pressing time measurement unit 70. . The electronic device 1b of the present embodiment is different from the electronic device 1a of the first embodiment in that it further includes a pressing time measuring unit 70. For convenience of explanation, the electronic device 1b includes the pressing time measuring unit 70 separately from the control unit 50, but the control unit 50 may include the pressing time measuring unit 70.

  The pressing time measuring unit 70 measures the time (pressing time) that the same portion of the input surface 10 a of the contact detection unit 10 is pressed and notifies the control unit 50 of the time. The pressing time starts, for example, after the pressing load detected by the load detection unit 30 exceeds the input acceptance load threshold value of each input stage. When the pressing time input from the pressing time measuring unit 70 exceeds a predetermined time, the control unit 50 determines that a long pressing operation has been performed. The long press operation refers to an operation of maintaining input for a long time (for example, 2 to 3 seconds) at the same number of steps, such as focus adjustment of a camera shutter. By providing the pressing time measuring unit 70, the control unit 50 can distinguish between a normal operation and a long press operation.

  The storage unit 40 stores an input acceptance load threshold and an input acceptance release load threshold used during normal operation, and an input acceptance load threshold and an input acceptance release load threshold used during a long press operation. FIG. 5 is a diagram illustrating an example of load threshold values (input acceptance load threshold value and input acceptance release load threshold value) used during a long press operation, and a pressing load. Here, up to three-stage input is shown, and the interval between the input acceptance load threshold and the input acceptance release load threshold increases as the number of input stages increases.

  Next, the operation of the electronic apparatus 1b according to this embodiment configured as described above will be described. FIG. 6 is a flowchart showing the operation of the electronic apparatus 1b according to this embodiment. Here, the case of two-stage input will be described, and a tactile sensation will be presented when the pressing load exceeds the input acceptance load threshold.

  When the operation of the electronic device 1b starts, the control unit 50 monitors the contact with the contact detection unit 10 and also monitors the load detected by the load detection unit 30 (step S201), and contacts such as an operator's finger. When contact with the contact detection unit 10 is detected, it is determined whether or not the pressing load detected by the load detection unit 30 satisfies the first-stage input acceptance load standard (step S202).

In step S202, when the pressing load detected by the load detection unit 30 satisfies the first-stage input acceptance load standard, the control unit 50 stores the contact position in the storage unit 40 (step S203). The tactile sensation is presented (step S204). And the control part 50 sets the input acceptance cancellation | release load reference | standard of the 1st step | line (step S205).

  Next, in the electronic device 1b of the present embodiment, the control unit 50 determines whether or not a long press operation has been performed based on the pressing time input from the pressing time measuring unit 70 (step S206). When it is determined in step S206 that the long press operation has not been performed, the control unit 50 does not change the input acceptance release load reference set in step S205. On the other hand, if the control unit 50 determines in step S206 that a long press operation has been performed, the control unit 50 changes the first-stage input acceptance release load reference set in step S205, and 1 is set as shown in FIG. The interval d1 between the input acceptance load threshold value and the input acceptance release load threshold value in the stage is set wider than that in the normal operation (step S207).

  Thereafter, the control unit 50 waits until the pressing load detected by the load detection unit 30 satisfies the second-stage input acceptance load standard (step S208). During standby, it is determined whether or not the pressing load detected by the load detection unit 30 satisfies the first-stage input acceptance release load criterion (step S209). End the operation. In step S208, when the pressing load detected by the load detection unit 30 satisfies the second-stage input acceptance load standard, the control unit 50 presents a tactile sensation (step S210).

  Next, the control unit 50 sets the second-stage input acceptance release load reference (step S211), and a long press operation is performed based on the pressing time input from the pressing time measuring unit 70 as in step S206. It is determined whether or not (step S212). If it is determined that a long press operation has been performed, the second-stage input acceptance release load standard set in step S211 is changed, and the second-stage input acceptance load threshold and the second stage are shown in FIG. The interval d2 of the input acceptance release load threshold is increased (step S213). Here, the interval d2 is made wider than the interval d1. Finally, the control unit 50 ends the operation when the pressing load detected by the load detection unit 30 does not satisfy the second-stage input acceptance release load standard (step S214).

  As described above, according to the electronic apparatus 1b of the present embodiment, the control unit 50 determines whether the input acceptance load criterion and the input acceptance release load criterion are satisfied when the pressing time at the same location on the input surface 10a exceeds a predetermined time. By controlling the interval, it is possible to identify a long press operation and to set a pressing load threshold value suitable for the long press operation, so that it is possible to prevent an input acceptance release unintended by the operator.

(Third embodiment)
Next, an electronic apparatus according to a third embodiment of the present invention will be described. In addition, the same reference number is attached | subjected to the same component as the electronic device 1a of 1st Embodiment, and description is abbreviate | omitted.

  FIG. 7 is a block diagram illustrating a schematic configuration of an electronic apparatus according to the third embodiment. The electronic device 1c according to the present embodiment includes a contact detection unit 10, a display unit 20, a load detection unit 30, a storage unit 40, a control unit 50, a tactile sensation providing unit 60, and a pressing movement distance measurement unit 80. Prepare. The electronic device 1c of this embodiment is different from the electronic device 1a of the first embodiment in that it further includes a pressing movement distance measuring unit 80. For convenience of explanation, the electronic device 1c includes the pressing movement distance measurement unit 80 separately from the control unit 50, but the control unit 50 may include the pressing movement distance measurement unit 80.

  The pressing movement distance measurement unit 80 measures the movement distance of the pressing position while the input surface 10a of the contact detection unit 10 is being pressed (a state in which the pressing is maintained), and notifies the control unit 50 of it. For example, the movement distance of the pressed position of the contact detection unit 10 is measured after the pressing load detected by the load detection unit 30 exceeds the first-stage input acceptance load threshold. The control unit 50 determines that the slide operation is performed when the movement distance input from the pressing movement distance measurement unit 80 exceeds a predetermined length. The sliding operation refers to an operation of sliding the contact object while pressing the input surface 10a of the contact detection unit 10. By providing the pressing movement distance measuring unit 80, the control unit 50 can distinguish between a normal operation and a slide operation.

  The storage unit 40 stores an input acceptance load threshold and an input acceptance release load threshold used during normal operation, and an input acceptance load threshold and an input acceptance release load threshold used during a slide operation. FIG. 8 is a diagram illustrating an example of an input acceptance load threshold value and an input acceptance release load threshold value used during a long press operation. Here, up to three-stage input is shown, and the interval between the input acceptance load threshold and the input acceptance release load threshold increases as the number of input stages increases. In addition, when the fluctuation of the pressing load at the time of the long pressing operation shown in FIG. 5 is compared with the fluctuation of the pressing load at the time of the sliding operation shown in FIG. 8, in general, the pressing load is more sudden in the sliding operation. Tend to decrease. For this reason, it is preferable that the interval between the input acceptance load threshold value and the input acceptance release load threshold value at the time of the slide operation is wider than that at the time of the long press operation.

  Next, the operation of the electronic apparatus 1c according to this embodiment configured as described above will be described. FIG. 9 is a flowchart showing the operation of the electronic apparatus 1c according to the present embodiment. Here, the case of two-stage input will be described, and a tactile sensation will be presented when the pressing load exceeds the input acceptance load threshold.

  When the operation of the electronic device 1c starts, the control unit 50 monitors the contact with the contact detection unit 10 and also monitors the load detected by the load detection unit 30 (step S301), and the contact object such as the operator's finger. When contact with the contact detection unit 10 is detected, it is determined whether or not the pressing load detected by the load detection unit 30 satisfies the first-stage input acceptance load standard (step S302).

In step S302, when the pressing load detected by the load detection unit 30 satisfies the first-stage input acceptance load standard, the control unit 50 stores the contact position in the storage unit 40 (step S303). The tactile sensation is presented (step S304). And the control part 50 sets the input acceptance cancellation | release load reference | standard of the 1st step | line (step S305).

  Next, in the electronic device 1c of the present embodiment, the control unit 50 determines whether or not a slide operation has been performed based on the movement distance input from the pressed movement distance measurement unit 80 (step S306). When it is determined in step S306 that the slide operation has not been performed, the control unit 50 does not change the input acceptance release load reference set in step S305. On the other hand, if the control unit 50 determines in step S306 that a slide operation has been performed, the control unit 50 changes the first-stage input acceptance release load standard set in step S305, and the first-stage input reception as shown in FIG. The interval d1 between the eye input acceptance load threshold and the input acceptance release load threshold is increased (step S307).

  Thereafter, the control unit 50 stands by until the pressing load detected by the load detection unit 30 satisfies the second-stage input acceptance load standard (step S308). During standby, it is determined whether or not the pressing load detected by the load detection unit 30 satisfies the first-stage input acceptance release load criterion (step S309), and the first-stage input acceptance cancellation load criterion is not satisfied. End the operation. In step S308, when the pressing load detected by the load detection unit 30 satisfies the second-stage input acceptance load standard, the control unit 50 presents a tactile sensation (step S310).

  Next, the control unit 50 sets the second-stage input acceptance release load reference (step S311), and a slide operation is performed based on the pressing time input from the pressing movement distance measuring unit 80, as in step S306. It is determined whether or not (step S312). If it is determined that a slide operation has been performed, the second-stage input acceptance release load reference set in step S311 is changed, and the second-stage input acceptance load threshold and input are changed as shown in FIG. The interval d2 of the acceptance cancellation load threshold is increased (step S313). Here, the interval d2 is made wider than the interval d1. Finally, the control unit 50 ends the operation when the pressing load detected by the load detection unit 30 does not satisfy the second-stage input acceptance release load standard (step S314).

  As described above, according to the electronic apparatus 1c of this embodiment, the control unit 50 cancels the input reception load reference and the input reception cancellation when the movement distance of the pressing position while the input surface 10a is pressed exceeds a predetermined length. By controlling the distance from the load reference, the slide operation is identified, and a pressing load threshold value suitable for the slide operation is set, so that it is possible to prevent the input acceptance cancellation unintended by the operator.

(Fourth embodiment)
Next, an electronic apparatus according to a fourth embodiment of the present invention will be described. In addition, the same reference number is attached | subjected to the same component as the electronic device 1a of 1st Embodiment, and description is abbreviate | omitted.

  FIG. 10 is a block diagram illustrating a schematic configuration of an electronic apparatus according to the fourth embodiment. The electronic device 1d of the present embodiment includes a contact detection unit 10, a display unit 20, a load detection unit 30, a storage unit 40, a control unit 50, a tactile sensation providing unit 60, and an application determination unit 90. The electronic device 1d of this embodiment is different from the electronic device 1a of the first embodiment in that it further includes an application determination unit 90. For convenience of explanation, the electronic device 1d is configured to include the application determination unit 90 separately from the control unit 50, but the control unit 50 may include the application determination unit 90.

  The application determination unit 90 determines the type of application that is currently running, and notifies the control unit 50 of the type. The application determination unit 90 identifies an application that requires a long press operation or a slide operation and an application that does not require a long press operation or a slide operation. The storage unit 40 stores the input acceptance load threshold value and the input acceptance release load threshold value for each input stage, the input acceptance release load threshold value for each input stage for long press operation, and the input acceptance for each input stage for slide operation. The release load threshold value is stored.

  Next, the operation of the electronic apparatus 1d according to this embodiment configured as described above will be described. FIG. 11 is a flowchart showing the operation of the electronic apparatus 1d according to this embodiment. Here, the case of two-stage input will be described, and a tactile sensation will be presented when the pressing load exceeds the input acceptance load threshold.

  When the operation of the electronic device 1d starts, the control unit 50 identifies whether the application requires a long press operation or a slide operation based on the application type input from the application determination unit 90 (step S401). And while monitoring the contact with respect to the contact detection part 10, the load detected with the load detection part 30 is monitored (step S402), and the contact with respect to the contact detection part 10 by contact objects, such as an operator's finger | toe, is detected. Then, it is determined whether or not the pressing load detected by the load detection unit 30 satisfies the first-stage input acceptance load standard (step S403).

In step S403, when the pressing load detected by the load detection unit 30 satisfies the first-stage input acceptance load standard, the control unit 50 stores the contact position in the storage unit 40 (step S404). The tactile sensation is presented (step S405). Then, the control unit 50 sets the first-stage input acceptance release load reference based on the application identified in step S401 (step S406).

  The control unit 50 waits until the pressing load detected by the load detection unit 30 satisfies the second-stage input acceptance load standard (step S407). During the standby, it is determined whether or not the pressing load detected by the load detection unit 30 satisfies the first-stage input acceptance release load criterion (step S408). End the operation. In step S407, when the pressing load detected by the load detection unit 30 satisfies the second-stage input acceptance load standard, the control unit 50 presents a tactile sensation (step S409).

  Next, similarly to step S406, the control unit 50 sets the second-stage input acceptance release load criterion based on the application identified in step S401 (step S410). Finally, the control unit 50 ends the operation when the pressing load detected by the load detection unit 30 does not satisfy the second-stage input acceptance release load standard (step S411).

  As described above, according to the electronic apparatus 1d of the present embodiment, the control unit 50 controls the interval between the input acceptance load reference and the input acceptance release load reference according to the type of the application, and thereby individually according to the application. Therefore, it is possible to prevent the input acceptance cancellation unintended by the operator.

  In addition, this invention is not limited only to the said embodiment, Many deformation | transformation or a change is possible. For example, in the above-described embodiment, the contact detection unit 10 is used to detect contact with the input surface 10a. However, when a load sensor (load detection unit) is used to satisfy a predetermined pressing load standard, the contact is detected. It can also be determined that has been made. Such a load detection unit can be configured using an arbitrary number of strain gauge sensors 31 and the like, similarly to the load detection unit 30 of the above-described embodiment.

  Moreover, in embodiment mentioned above, the load detection part 30 can be comprised according to a contact detection system. For example, in the case of the resistance film method, if the load can be detected from the change in the output signal based on the resistance change due to the contact area, the strain gauge sensor 31 can be used. Alternatively, in the case of the electrostatic capacity method, even when the load can be detected from the change in the output signal based on the change in the electrostatic capacity, the strain gauge sensor 31 can be used.

  Further, the tactile sensation providing unit 60 can be configured to indirectly vibrate the input surface 10a of the contact detection unit 10 by vibrating the electronic device based on a vibration motor (eccentric motor). Furthermore, when the load detection unit 30 and the tactile sensation providing unit 60 are configured using piezoelectric elements, the load detection unit 30 and the tactile sensation providing unit 60 can also be configured by sharing the piezoelectric elements. This is because the piezoelectric element generates electric power when pressure is applied and deforms when electric power is applied.

  In the above-described embodiment, the description has been made assuming the configuration in which the contact detection unit 10 is arranged so as to overlap the upper surface of the display unit 20, but it is not always necessary to have such a configuration, and the contact detection unit 10 and the display unit are not necessarily provided. 20 may be separated.

  In the above-described embodiment, the control unit 50 receives an input when the load detection unit 30 detects a pressing load that satisfies the input reception load standard, but when the input reception load standard is satisfied, the load detection unit When the pressing load detected by 30 reaches a predetermined value for receiving input, or when the pressing load detected by the load detection unit 30 exceeds a predetermined value for receiving input, load detection It may be when a predetermined value for receiving input is detected by the unit 30. In the description of the above-described embodiment, expressions such as “exceeding” the threshold and “below” the threshold are not necessarily strict meanings, and “exceeding the threshold” may include cases where the threshold exceeds the threshold. The threshold “below” can include a case where the threshold is less than the threshold.

  Further, in the above-described embodiment, as a mode in which the tactile sensation providing unit 60 presents a tactile sensation to the contact target in contact with the input surface 10a, the tactile sensation providing unit 60 generates vibrations on the input surface 10a. Although the present invention has been described with reference to a mode of presenting a tactile sensation with respect to a contact target that is in contact with the input surface 10a, the present invention is not limited to this, and by controlling the charge of a film attached on the contact detection unit 10 or the like. The tactile sensation may be presented to the contact object that is in contact with the input surface 10a without using mechanical vibration.

  In addition, the contact detection unit 10 and the display unit 20 in the description of the above-described embodiment may be configured by an integrated device by providing both functions of the contact detection unit 10 and the display unit 20 on a common substrate. . As an example of the configuration of the device in which both functions of the contact detection unit 10 and the display unit 20 are integrated, a plurality of photoelectric conversion elements such as photodiodes are regularly arranged in a matrix electrode array of pixels included in a liquid crystal panel. Some are mixed. This device displays an image with a liquid crystal panel structure, while reflecting the light of a backlight for liquid crystal display at the tip of a pen that touches and inputs a desired position on the surface of the panel. By receiving the light, the touch position can be detected.

  Further, in the above-described embodiment, the input surface 10a is a surface with which a contact object comes into contact. The input surface 10a has been described on the assumption that the surface in the contact detection unit 10 is not limited thereto, but is not necessarily limited to this. It may be a simple plate surface having no function.

DESCRIPTION OF SYMBOLS 1a, 1b, 1c, 1d Electronic device 10 Contact detection part 10a Input surface 11 Case 12 Insulator 13 Upper cover 14 Insulator 20 Display part 30 Load detection part 31 Strain gauge sensor 40 Memory | storage part 50 Control part 60 Tactile sense presentation part 61 Piezoelectric vibration Child 70 Press time measurement unit 80 Press movement distance measurement unit 90 Application determination unit

Claims (4)

An input surface;
A load detection unit for detecting a pressing load on the input surface;
When a pressing load that satisfies the input acceptance load criterion is detected by the load detection unit, an input is accepted, and after receiving the input, a pressing load that does not satisfy the input acceptance release load criterion is detected by the load detection unit, A control unit that controls to cancel the received input,
The control unit, when setting a plurality of the input acceptance load criteria, a first input acceptance load criteria and a first input acceptance release load for releasing the input accepted based on the first input acceptance load criteria A second input acceptance load criterion that is higher than the first input acceptance load criterion than the interval from the reference, and a second input acceptance cancellation for canceling the input received based on the second input acceptance load criterion An electronic device characterized by controlling an interval so as to widen an interval with a load reference.   The electronic device according to claim 1, wherein the control unit controls the interval when a pressing time of the same place on the input surface exceeds a predetermined time.   The electronic device according to claim 1, wherein the control unit controls the interval when a moving distance of a pressed position while the input surface is being pressed exceeds a predetermined length.   The electronic device according to claim 1, wherein the control unit controls the interval according to a type of application.