JP6659109B2 - Electronic device, control method thereof, program, and storage medium - Google Patents

Description

  The present invention relates to an electronic device, a control method thereof, a program, and a storage medium, and more particularly to an electronic device including a resistive touch panel.

  2. Description of the Related Art In recent years, a mobile phone, which is one of electronic devices, has a function of a personal computer or a personal digital assistant (PDA), and various application programs can be used. As a touch panel provided in such a mobile phone, a capacitive touch panel is mainly used.

  The capacitive touch panel can easily perform multipoint detection as compared with the resistive touch panel. Furthermore, since a capacitance type touch panel detects an electrostatic change due to a human body, it is not necessary to strongly press the touch panel during a touch operation as compared with a resistive type touch panel. For this reason, it is said that the capacitive touch panel has good operability.

  On the other hand, a resistive touch panel is cheaper than a capacitive touch panel, and can use various input objects (for example, fingers, gloves, and hard / soft styluses). Further, there is an advantage that the resistive touch panel can be used even in a bad environment such as rain.

  Therefore, in order to improve the operability of the resistive touch panel, for example, there is a touch panel device in which the touch determination threshold is lowered when the touch state is continuous and the touch position is moving (Patent Reference 1).

JP-A-2003-233364

  By the way, regarding a flick or move operation, which is one of the touch operations, it is difficult to increase the initial touch pressure when performing the touch operation. For this reason, in the touch panel device described in Patent Literature 1, initial touch pressure is weakened in a flick or move operation or the like. Therefore, in the touch panel device described in Patent Literature 1, the touch operation may not be detected in some cases, and the usability for the user is deteriorated.

  Therefore, an object of the present invention is to provide an electronic device capable of preventing undetection of a touch operation in which initial touch pressing becomes weak and obtaining a comfortable operation feeling, a control method thereof, a program, and a storage medium. To provide.

In order to achieve the above object, an electronic apparatus according to the present invention includes a pressure-sensitive touch panel, and a second pressure higher than or equal to a first pressure that is predetermined for the touch panel and lower than a first pressure that is higher than the first pressure. of when pressing there Ru, when the position of the pressure does not move satisfies the predetermined condition, touchdown indicating the start of even a touch operation if there is the first pressure or the pressing regardless of the touch position without changing the display in accordance with, when the position of the pressing is to move satisfies the predetermined condition, corresponding to the touch-down without pushing users exceeds the second pressure controlled to make changes to the display, the second when there is more than pressing pressure, the changes of the display in response to the touch down position of the pressed without being moved to meet the predetermined condition To do And wherein further comprising a Gosuru control means.

  According to the present invention, it is possible to prevent a non-detection of a touch operation in which the initial touch pressure is weak, and obtain a comfortable operation feeling.

FIG. 2 is a block diagram illustrating a configuration of a touch panel device as an example of the electronic device according to the first embodiment of the present invention. 2A and 2B are diagrams for explaining the operation of the touch panel control unit shown in FIG. 1, wherein FIG. 2A shows a structure of the touch panel shown in FIG. 1, FIG. 2B shows contact detection by the touch panel control unit, and FIG. FIGS. 3D and 3D are diagrams illustrating measurement of contact coordinates by the touch panel control unit, and FIGS. 3E and 3F are diagrams illustrating measurement of contact resistance values by the touch panel control unit. 3 is a flowchart for explaining the operation of the touch panel device shown in FIG. 1 (part 1). 6 is a flowchart for explaining the operation of the touch panel device shown in FIG. 1 (part 2). FIG. 2 is a timing chart for explaining a touch operation and a touch detection of the touch panel shown in FIG. 1. It is a flow chart for explaining operation of the touch panel device concerning a 2nd embodiment of the present invention (the 1). It is a flow chart for explaining operation of the touch panel device concerning a 2nd embodiment of the present invention (the 2). It is a flow chart for explaining operation of a touch panel device concerning a 3rd embodiment of the present invention (the 1). It is a flow chart for explaining operation of a touch panel device concerning a 3rd embodiment of the present invention (the 2).

  Hereinafter, an example of an electronic device according to an embodiment of the present invention will be described with reference to the drawings.

[First Embodiment]
FIG. 1 is a block diagram illustrating a configuration of a touch panel device as an example of the electronic device according to the first embodiment of the present invention.

  The illustrated touch panel device includes a CPU 101, a ROM 102, a RAM 103, an operation unit 104, and a touch panel control unit 105, and these blocks are interconnected by a system bus 108. The display unit 106 and the touch panel 107 are connected to the touch panel control unit 105, and the touch panel 107 is arranged on the surface of the display unit 106. In the illustrated example, the touch panel control unit 105, the display unit 106, and the touch panel 107 constitute a touch panel unit. Although not shown, the touch panel control unit 105 includes a CPU, a ROM, a RAM, and the like.

  The CPU 101 executes a program stored in the ROM 102 to control the illustrated touch panel device. The RAM 103 is used as a work memory of the CPU 101. The operation unit 104 is operated by a user, and the user sends various commands to the CPU 101 using the operation unit 104. The CPU 101 displays various information such as images on a display unit (for example, an LCD) 106 via the touch panel control unit 105. Note that various information such as images are stored in the RAM 103, for example.

  The touch panel 107 is, for example, a pressure-sensitive touch panel such as a resistive film type. Touch panel control section 105 detects that touch panel 107 is pressed by a user's touch operation (that is, the user's finger touches touch panel 107). Further, touch panel control section 105 obtains a contact position (that is, coordinates) on display section 106 by the touch operation. Further, the touch panel control unit 105 measures a contact resistance value by a touch operation as described later. Then, the touch panel control unit 12 sends the contact detection information, the contact coordinates, and the ground contact resistance value to the CPU 101.

  The CPU 101 determines the movement of the contact coordinates due to the touch operation based on the contact detection information and the contact coordinates. Further, as described later, the CPU 101 determines a threshold for detecting a touchdown (touchdown determination threshold), and determines whether or not a touchdown described later has occurred.

  Note that the ROM 102 stores a first threshold value z1 and a second threshold value z1, and the CPU 101 determines the touch-down determination threshold value with reference to the first threshold value z1 and the second threshold value z2, and Determine the down.

  In addition, the CPU 101 can detect the next operation and state on the touch panel 107 via the touch panel control unit 105.

  The CPU 101 detects that a finger or a pen that has not touched the touch panel 107 has newly touched the touch panel 107. That is, the CPU 101 detects the start of the touch (hereinafter, referred to as touch-down).

  The CPU 101 detects that the touch panel 107 is being touched with a finger or a pen (hereinafter referred to as “touch-on”).

  The CPU 101 detects that the finger or the pen is moving while touching the touch panel 107 with the finger or the pen (hereinafter referred to as touch-move).

  CPU 101 detects that a finger or a pen touching touch panel 107 has been released from touch panel 107. That is, the CPU 101 detects the end of the touch operation (hereinafter, referred to as touch-up).

  The CPU 101 detects a state in which nothing is touched on the touch panel 107 (hereinafter, referred to as touch-off).

  By the way, when the touch-down is detected, it is simultaneously detected that the touch-on is performed. After touch-down, touch-on detection usually continues unless touch-up is detected. The state where touch move is detected is a state where touch-on is detected. Even if a touch-on is detected, a touch move is not detected unless the touch position has moved. Touch-off is performed after it is detected that all of the touched fingers or pens have been touched up.

  The above-described operation and state, and the position coordinates (contact coordinates) at which the finger or the pen touches the touch panel 107 are sent from the touch panel control unit 105 to the CPU 101 as touch information via the system bus 108. CPU 6 determines what operation has been performed on touch panel 107 based on the touch information.

  Regarding the touch move, the CPU 101 can determine the moving direction of the finger or pen moving on the touch panel 107 for each of the vertical component and the horizontal component on the touch panel 107 based on the change in the position coordinates. It is also assumed that a stroke is drawn when a touch-up is performed on the touch panel 107 through a predetermined touch move from a touch-down. An operation of quickly drawing a stroke is called a flick. A flick is an operation in which a finger is touched on the touch panel 107, quickly moved by a certain distance, and then released. In other words, a flick is an operation of quickly tracing on the touch panel 107 as if by a finger.

  The CPU 101 detects that a touch move has been performed at a predetermined speed or more over a predetermined distance, and if a touch-up is detected as it is, it is determined that a flick has been performed. When the CPU 101 detects that a touch move has been performed over a predetermined distance or less at a speed lower than the predetermined speed, the CPU 101 determines that dragging has been performed.

  FIG. 2 is a diagram for explaining the operation of touch panel control section 105 shown in FIG. FIG. 2A is a diagram illustrating the structure of the touch panel 107 illustrated in FIG. 1, and FIG. 2B is a diagram illustrating contact detection performed by the touch panel control unit. FIGS. 2C and 2D are diagrams showing measurement of contact coordinates by the touch panel control unit. FIGS. 2E and 2F are diagrams showing the measurement of the contact resistance value by the touch panel control unit.

  2A, the touch panel 107 has an upper electrode 201 and a lower electrode 202 made of a conductive film such as ITO (tin-doped indium oxide). The upper electrode 201 and the lower electrode 202 are arranged to face each other. Although not shown, the upper electrode 101 and the lower electrode 102 are kept in a non-contact state by a spacer.

  Electrodes X + and X− are formed at both ends of the upper electrode 101 in the X direction, and electrodes Y + and Y− are formed at both ends of the lower electrode 102 in the Y direction. The touch panel control unit 12 controls switching of voltage application to these electrodes and connection of an A / D converter (not shown) according to a detection target.

  FIG. 2B shows an equivalent circuit of the touch panel 107 when detecting a touch on the touch panel 107. When the touch is detected, the touch panel control unit 105 applies a voltage between the electrode X + and the electrode Y− via a pull-up (PU) resistance (value). As the pressure on the touch panel 107 increases, the contact area between the upper electrode 101 and the lower electrode 102 increases, and the contact resistance Rt decreases. That is, the pressing force and the contact resistance value Rt are in an inversely proportional relationship.

  When the pressure on the touch panel 107 increases and the contact resistance value Rt becomes sufficiently smaller than the PU resistance value, the potential of the electrode X + changes from a high (high) level to a low (low) level. For example, when the comparator (not shown) detects the Low potential of the electrode X +, the touch panel control unit 105 transmits an interrupt signal to the CPU 101 to notify that the touch panel 13 has been pressed.

  FIG. 2C shows an equivalent circuit of the touch panel 107 when the touch panel control unit 105 detects the X coordinate. When detecting the X coordinate, the touch panel control unit 105 applies a predetermined voltage between the electrode X + and the electrode X−. Then, the touch panel control unit 105 switches the connection of the A / D converter (A / D) to the electrode Y +.

  Since the potential of the electrode Y + is proportional to the voltage dividing resistance Rx of the upper electrode 101, the touch panel control unit 105 calculates the voltage dividing resistance value Rx according to the A / D conversion value corresponding to the potential of the electrode Y +. Then, the touch panel control unit 105 detects the X coordinate of the pressed position (touch position) according to the voltage dividing resistance value Rx.

  FIG. 2D illustrates an equivalent circuit of the touch panel 107 when the touch panel control unit 105 detects a Y coordinate. When detecting the Y coordinate, the touch panel control unit 105 applies a predetermined voltage between the electrodes Y + and Y−. Then, the touch panel control unit 105 switches the connection of the A / D converter (A / D) to the electrode X +.

  Since the potential of the electrode X + is proportional to the voltage dividing resistance Ry of the upper electrode 101, the touch panel control unit 105 calculates the voltage dividing resistance value Ry according to the A / D conversion value corresponding to the potential of the electrode X +. Then, the touch panel control unit 105 detects the Y coordinate of the pressed position (touch position) according to the voltage division resistance value Ry.

  FIGS. 2E and 2F show equivalent circuits of the touch panel 107 when the touch panel control unit 105 detects a contact resistance value caused by pressing the touch panel 107. In FIG. 2E, the touch panel control unit 105 applies a predetermined voltage between the electrode Y + and the electrode X−, and switches the connection of the A / D converter (A / D) to the electrode X +. In addition, as shown in FIG. 2F, the touch panel control unit 105 similarly applies a predetermined voltage between the electrode Y + and the electrode X− to connect the A / D converter (A / D). Is switched to the electrode Y−.

  Assume that the A / D converted value obtained by A / D converting the potential of the electrode X + is A2, and the A / D converted value obtained by A / D converting the potential of the electrode Y + is A1. The contact resistance Rt between the upper electrode 101 and the lower electrode 102 is expressed by the following equation (1) using the above-described voltage dividing resistance Rx of the upper electrode 101.

Rt = Rx × (A1 / A2-1) (1)
As described above, since the pressing force and the contact resistance value Rt are in inverse proportion, the pressing force is small when the contact resistance value Rt is large, and the pressing force is large when the contact resistance value Rt is small.

  If the pressing force is equal to or larger than the threshold value Z2, the CPU 101 determines that the touch-down has occurred. Further, even when the pressing force is less than the threshold value Z2 and equal to or more than the threshold value Z1, if the coordinates move within a predetermined time, the CPU 101 determines that the touch-down operation is performed. When the pressing force is less than the threshold value Z1, the CPU 101 determines that the touch-off is performed.

  Note that the threshold value Z2 is set high to prevent erroneous detection in single touch, and the second threshold value Z2> the first threshold value Z1.

  3A and 3B are flowcharts for explaining the operation of the touch panel device shown in FIG. The processing according to the illustrated flowchart is performed by expanding the program recorded in the ROM 102 into the RAM 103 and executing the program by the CPU 101.

  The CPU 101 determines whether a touch on the touch panel 107 has been detected based on the information acquired from the touch panel control unit 105 (step S301). For example, when the touch panel control unit 105 detects the low potential of the electrode X + by a comparator (not shown), the touch panel control unit 105 notifies the CPU 101 of an interrupt signal. Upon receiving this notification, the CPU 101 determines Yes in step S301. The pressing force at which this interrupt signal is notified is assumed to be equal to or less than a first threshold value described later (the pressing force may be set to the same as the first threshold value). If no contact is detected (NO in step S301), CPU 101 waits.

  Subsequently, the CPU 101 acquires the contact resistance value Rt detected by the touch panel control unit 105 by the method described with reference to FIGS. 2E and 2F as the first resistance value detection result from the touch panel control unit 105. I do.

  The CPU 101 determines whether the pressing force (that is, the contact resistance value Rt) is equal to or more than the first threshold value Z1 (that is, the first pressure or more) (step S303). If the pressing force is less than first threshold value Z1 (NO in step S303), CPU 101 returns the process to step S301.

  If the pressing force is equal to or greater than the first threshold value z1 (NO in step S303), CPU 101 determines whether the pressing force is less than second threshold value Z2 (that is, less than the second pressure) (step S303). S304). If the pressing force is smaller than the second threshold value and smaller than Z2 (NO in step S304), CPU 101 instructs touch panel control section 105 to detect the X coordinate and the Y coordinate of the touch position (that is, the pressed position).

  The CPU 101 acquires from the touch panel control unit 105 the X coordinate and the Y coordinate of the pressed position detected (measured) by the touch panel control unit 105 using the method described with reference to FIGS. 2C and 2D described above ( Step S305).

  Subsequently, the CPU 101 determines whether a predetermined time has elapsed (step S306). If the predetermined time has not elapsed (NO in step S306), CPU 101 waits. On the other hand, when the predetermined time has elapsed (YES in step S306), CPU 101 acquires again the X coordinate and the Y coordinate of the pressed position detected (measured) by touch panel control section 105 (step S307).

  The CPU 101 compares the first coordinate measurement result and the second coordinate measurement result to determine whether or not a predetermined condition, that is, coordinate movement has occurred (step S308). If there is no movement of the coordinates (NO in step S308), CPU 101 returns the process to S301.

  On the other hand, if the coordinates have moved (YES in step S308), CPU 101 determines that a touch-down has occurred (step S309). If the pressing force is equal to or greater than the second threshold value Z2 (YES in step S304), CPU 101 proceeds to the process in step S309 and determines that a touch-down has occurred.

  Subsequently, the CPU 101 obtains, as a third coordinate measurement result, the X coordinate and the Y coordinate of the pressed position detected by the touch panel control unit 105 using the method described with reference to FIGS. 2C and 2D. (Step S310).

  Next, the CPU 101 performs a process corresponding to the touchdown. For example, based on the third coordinate measurement result, the CPU 101 controls the touch panel control unit 105 to display a UI on the display unit 106 (step S311). For example, when a screen having a plurality of selection items is displayed on the display unit 106, the CPU 101 changes the display mode of the selection items displayed at the touchdown position as the UI display to a display mode indicating that the selected item is being selected. change.

  When the touch position is moving (in the case of a touch move), the CPU 101 performs a process of scrolling a list, an image, a document, or the like displayed on the display unit 106 following the touch position.

  Subsequently, the CPU 101 acquires the contact resistance value Rt detected (measured) by the touch panel control unit 105 as a second resistance value detection result (step S312). The CPU 101 determines whether the pressing force is equal to or more than the first threshold value Z1 according to the result of the second resistance value detection (step S313). If the pressing force is equal to or greater than first threshold value Z1 (YES in step S313), CPU 101 determines that the touch operation is still being performed, and returns the process to step S310.

  On the other hand, if the pressing force is less than first threshold value Z1 (NO in step S313), CPU 101 determines that there is a touch-up, and determines that the speed of the touch move immediately before the user's finger leaves touch panel 107 is a predetermined speed. It is determined whether or not this is the case (step S314). If the speed of the touch move is equal to or higher than the predetermined speed (YES in step S314), CPU 101 determines that there is a flick (step S315).

  If the speed of the touch move is lower than the predetermined speed (NO in step S314), CPU 101 determines whether or not there is movement according to the initial coordinates after touchdown and the coordinates at the time of touchup. (Step S316). If there is no movement (NO in step S316), CPU 101 determines that a single touch has been made (step S117). On the other hand, if there is a movement (YES in step S316), CPU 101 determines that the touch move has ended (step S318).

  After the processing in step S115, S117, or S118, the CPU 101 controls the touch panel control unit 105 to reflect the touch on the UI display on the display unit 106 (step S319). Then, the CPU 101 ends the processing.

  In the process of step S319, if a flick is determined, for example, the CPU 101 controls the touch panel control unit 105 to perform the inertial scrolling process (deceleration after touch-up) on the Web page or list displayed on the display unit 14. Scrolling process). Further, the CPU 101 performs an image feed process for switching an image displayed on the display unit 14 to another image.

  Here, in the flowcharts shown in FIG. 3A and FIG. 3B, a description will be given of a process when the pressing force is equal to or more than the first threshold value Z1 and less than the second threshold value Z2.

  FIG. 4 is a timing chart for explaining touch operation and touch detection of touch panel 107 shown in FIG.

  Now, it is assumed that the user has touched the touch panel 107 at time t1. Then, it is assumed that the pressing force at which the user touches the touch panel 107 has reached the first threshold value Z1 at time t1. In this case, since the pressing force is equal to or more than the first threshold value Z1 and less than the second threshold value Z2, the coordinates of the touch position are detected in the process of step S305. The detected coordinates at this time are (Xt1, Yt1).

  Thereafter, it is assumed that the pressing force gradually increases and then slightly decreases, and the pressing force becomes substantially constant at time t2. The pressing force at this time is greater than the first threshold value Z1 and less than the second threshold value Z2. Assuming that a predetermined time has elapsed from time t1 to time t2, that is, from time t2 to when the touch operation is detected, the coordinates of the touch position are detected in the process of step S307. The detected coordinates at this time are (Xt2, Yt2).

  Here, if there is almost no movement of the coordinates from time t1 to time t2, that is, (Xt1, Yt1) ≒ (Xt2, Yt2), the CPU 101 determines that it is in the non-touch state. On the other hand, if there is a movement of the coordinates from time t1 to time t2, that is, if (Xt1, Yt1) ≠ (Xt2, Yt2), CPU 101 determines in step S309 that the touch-down has occurred, and in step S313 the pressing force is determined. Is greater than or equal to the first threshold value Z1, the CPU 101 determines that a flick or a move has occurred.

  When (Xt1, Yt1) ≒ (Xt2, Yt2), even if the pressing force is equal to or greater than the first threshold value Z1, the CPU 101 determines that it is in the non-touch state.

  Then, when the pressing force becomes less than the first threshold value Z1 at time t3, the CPU 101 determines that the state is the non-touch state.

  As described above, in the case where there is a coordinate movement, the determination of flick or move is performed using only the first threshold value Z1 without using the second threshold value Z2. On the other hand, when there is no coordinate movement, the touch state is determined using the first threshold value Z1 and the second threshold value Z2.

  As described above, in the first embodiment of the present invention, if there is no coordinate movement, the presence / absence of a touch operation is determined using the first threshold value Z1 and the second threshold value Z2. The presence or absence of a touch operation is determined using only the first threshold value Z1 smaller than the second threshold value Z2. Thus, even when the pressing force due to the touch is weak, it is possible to prevent undetection and provide a comfortable operation.

  In the above-described first embodiment, the processing illustrated in FIGS. 3A and 3B is described as being performed by the CPU 101, but the processing excluding steps S311 and S319 may be performed by the touch panel control unit 105. In this case, in steps S309, S315, S318, and S317, the touch-panel control unit 105 determines that there is a touch-down, a touch-up (flick), a touch-up (move end), and a touch-up (single-touch touch-up). Notifies the CPU 101. Upon receiving these notifications, the CPU 101 executes processing corresponding to a touch operation such as reflection on the UI display, scrolling, and execution of a function of the touched icon.

[Second embodiment]
Next, a touch panel device which is one of the electronic devices according to the second embodiment of the present invention will be described. The configuration of the touch panel device according to the second embodiment is the same as that of the touch panel device shown in FIG.

  In the above-described first embodiment, as a result of determining the presence / absence of coordinate movement, the processing takes time. Therefore, in the touch panel device according to the first embodiment, the responsiveness is reduced accordingly.

  By the way, when a specific mode in which a flick or a touch move is not accepted is set in a specific area of the touch panel 107, a single touch can be excluded in the specific area. Therefore, in the specific mode, it is not necessary to set the second threshold value Z2 higher than the first threshold value Z1 in the specific area in order to prevent erroneous single touch detection as in the first embodiment. That is, the second threshold value Z2 can be made equal to the first threshold value Z1. In other words, there is no need to check for the presence or absence of coordinate movement, and the responsiveness improves.

  5A and 5B are flowcharts for explaining the operation of the touch panel device according to the second embodiment of the present invention.

  The processing according to the illustrated flowchart is performed by expanding the program recorded in the ROM 102 into the RAM 103 and executing the program by the CPU 101. In the illustrated flowchart, the same steps as those in the flowcharts illustrated in FIGS. 3A and 3B are denoted by the same reference numerals, and description thereof is omitted.

  When the touch panel control unit 105 detects a touch (touch operation) on the touch panel 107 in step S301, the CPU 101 determines whether the above-described specific mode is set (step S501). If the specific mode is set (YES in step S501), CPU 101 specifies a specific area on touch panel 107 (step S502). After that, the CPU 101 controls the touch panel control unit 105 to perform the process of step S302.

  On the other hand, if the specific mode is not set (NO in step S501), CPU 101 controls touch panel control unit 105 to perform the process in step S302.

  If the contact resistance value Rt (first resistance value detection result) is equal to or greater than the first threshold value Z1 in step 303 (YES in step S303), the CPU 101 controls the touch panel control unit 105 to control the X coordinate of the pressed position. And the Y coordinate (fourth coordinate measurement result) is detected (measured) (step S503).

  Subsequently, the CPU 101 determines whether or not the XY coordinates (fourth coordinate measurement result) obtained in step S503 are within a specific area (step S504). If the fourth coordinate measurement result is within the specific area (YES in step S504), CPU 101 sets second threshold value Z2 = first threshold value Z1 (step S505). After that, the CPU 101 proceeds to the process of step S304.

  If it is determined in step S501 that the current mode is not the specific mode, the CPU 101 determines in step S504 that the fourth coordinate measurement result is located outside the specific area. If the fourth coordinate measurement result is located outside the specific area (NO in step S504), CPU 101 proceeds to the process in step S304.

  In the process of step S505, when the second threshold value Z2 is set to the first threshold value Z1, the pressing force does not become less than the second threshold value Z2. Therefore, in this case, if the CPU 101 determines that the pressing force is equal to or more than the second threshold value Z2 (= first threshold value Z1) in the processing of step S304, the CPU 101 proceeds to the processing of step S309 and determines that touch-down is performed. .

  As described above, in the case where the second threshold value Z2 is equal to the first threshold value Z1 in the process of step S505, the CPU 101 omits the processes of steps S305 to S308 described above. Thereby, the processing time can be shortened.

  Thereafter, the processing of steps S310 to S316 is performed. If there is no movement in step S316 (NO in step S316), CPU 101 determines whether or not the coordinates of the touched position are within the specific area (step S506). When the coordinates of the touched position are within the specific area (YES in step S506), CPU 101 returns the process to step S301.

  On the other hand, if the coordinates of the touched position are outside the specific area (NO in step S506), CPU 101 determines in step S317 that the touch is a single touch.

  By the way, as described above, when the coordinates of the position where the touch operation is performed are within the specific area, the CPU 101 does not receive a single touch. For this reason, in the process of step S506, it is determined whether or not the coordinates of the position where the touch operation is performed are within a specific area. If it is determined that the coordinates of the touched position are within the specific area, the CPU 101 returns the process to step S301 without accepting a single touch.

  As described above, in the second embodiment of the present invention, when the specific mode is set, the second threshold value Z2 is set to the first threshold value Z1, and the processing of steps S304 to S308 illustrated in FIG. 3A is omitted. The response time can be improved by shortening the processing time.

  Note that, in the second embodiment as well, in the same manner as in the first embodiment, processes other than steps S311 and S319 may be performed by the touch panel control unit 105. In this case, as in the first embodiment, in steps S309, S315, S318, and S317, touch-down, touch-up (flick), touch-up (move end), and touch-up (touch by single touch) are performed, respectively. Touch-panel control unit 105 notifies CPU 101 of the occurrence of “up”. Upon receiving these notifications, the CPU 101 executes processing corresponding to a touch operation such as reflection on the UI display, scrolling, and execution of a function of the touched icon.

[Third Embodiment]
Subsequently, a touch panel device which is one of the electronic devices according to the third embodiment of the present invention will be described. The configuration of the touch panel device according to the third embodiment is the same as that of the touch panel device shown in FIG.

  By the way, in the portable terminal device provided with the above-mentioned touch panel device, for example, there is a case where the portable terminal device is put in a bag with the power turned on. Furthermore, the portable terminal device put in the bag may be activated by mistake. If the touch panel 107 is pressed by mistake while the power is turned on, the automatic power-off function does not operate, and the terminal device, that is, the touch panel device continues to be activated. Furthermore, if the above-mentioned first threshold value Z1 is set low, the touch operation is continuously detected, and the touch panel device continues to be activated.

  Therefore, in the touch panel device according to the third embodiment, the CPU 101 measures the time during which the touch operation is being performed on the touch panel 107 (that is, the pressing time). When the pressing force is equal to or greater than the first threshold value Z1 and the pressing time (that is, the clocking time) reaches a predetermined time, the CPU 101 determines that the touch panel 101 has been pressed by a foreign object or the like, Turn off.

  6A and 6B are flowcharts for explaining the operation of the touch panel device according to the third embodiment of the present invention.

  The processing according to the illustrated flowchart is performed by expanding the program recorded in the ROM 102 into the RAM 103 and executing the program by the CPU 101. In the illustrated flowchart, the same steps as those in the flowcharts illustrated in FIGS. 3A and 3B are denoted by the same reference numerals, and description thereof is omitted.

  In the process of step S303, if the pressing force is equal to or greater than the first threshold value Z1 (YES in step S303), CPU 101 starts measuring a predetermined time (step S601). Then, the CPU 101 proceeds to the process of step S304.

  In the process of step S304, if the pressing force is less than the second threshold value Z2 (YES in step S304), CPU 101 determines whether a predetermined time has elapsed from the start of time measurement (step S602). When the predetermined time has elapsed (YES in step S602), CPU 101 turns off the power of the touch panel device (step S603). Then, the CPU 101 ends the processing.

  On the other hand, if the predetermined time has not elapsed (NO in step S602), CPU 101 performs the processing in steps S305 to S312.

  After the process in step S312, the CPU 101 determines again whether a predetermined time has elapsed since the start of the timing (step S604). When a predetermined time has elapsed (YES in step S604), CPU 101 turns off the power of the touch panel device (step S605). Then, the CPU 101 ends the processing.

  On the other hand, if the predetermined time has not elapsed (NO in step S604), CPU 101 performs the processing in steps S313 to S319.

  In this way, if the power is turned off after the predetermined time elapses, even if the touch panel is pressed in a portable terminal device or the like put in a bag, the predetermined time elapses in step S603 or In step S605, the power is turned off.

  6A and 6B, the case where the power is turned off in the processing of the flowcharts shown in FIGS. 3A and 3B has been described. However, the same applies to the processing of the flowcharts shown in FIGS. 5A and 5B. Can be.

  As described above, according to the third embodiment of the present invention, the power is turned off after a predetermined time elapses in a state where the touch panel is pressed by a foreign object, not by a human operation such as a user. Is not wasted.

  In the above-described third embodiment, the processing illustrated in FIGS. 6A and 6B has been described as being performed by the CPU 101. However, the processing excluding steps S603, S605, S311, and S319 may be performed by the touch panel control unit 105. . In this case, as in the first embodiment, in steps S309, S315, S318, and S317, touch-down, touch-up (flick), touch-up (move end), and touch-up (touch by single touch) are performed, respectively. Touch-panel control unit 105 notifies CPU 101 of the occurrence of “up”. Upon receiving these notifications, the CPU 101 executes processing corresponding to a touch operation such as reflection on the UI display, scrolling, and execution of a function of the touched icon.

  Note that the control by the CPU 101 may be performed by one piece of hardware, or a plurality of pieces of hardware may share the processing, thereby controlling the entire apparatus.

  Although the present invention has been described in detail based on the preferred embodiments, the present invention is not limited to these specific embodiments, and various forms that do not depart from the gist of the present invention are also included in the present invention. included. Furthermore, each of the above-described embodiments is merely an embodiment of the present invention, and the embodiments can be appropriately combined.

  Further, in the above-described embodiment, the case where the present invention is applied to a touch panel device, which is one of electronic devices, has been described as an example. However, the present invention is not limited to this example. It is possible. That is, the present invention can be applied to a personal computer, a PDA, a mobile phone terminal, a portable image viewer, a printer device having a display, a digital photo frame, a music player having a touch panel, a game machine, an electronic book reader, and the like.

[Other Embodiments]
The present invention supplies a program for realizing one or more functions of the above-described embodiments to a system or an apparatus via a network or a storage medium, and one or more processors in a computer of the system or the apparatus read and execute the program. This processing can be realized. Further, it can be realized by a circuit (for example, an ASIC) that realizes one or more functions.

101 CPU
102 ROM
103 RAM
104 operation unit 105 touch panel control unit 106 display unit 107 touch panel 108 system bus

Claims (8)

A pressure-sensitive touch panel,
When the first and at least a pressure higher second than the first pressure of the pressure below the pressure there Ru predetermined on the touch panel, the position of the pressing is not moving satisfies a predetermined condition If not, without displaying changes in accordance with the touchdown indicating the start of even a touch operation if there is pressing at least the first pressure regardless of the touch position, the position of the pressing satisfies the predetermined condition In the case where the user is moving, control is performed such that the display is changed in accordance with the touchdown even if the user's pressing does not exceed the second pressure, and when there is a pressing of the second pressure or more. Control means for controlling the change of display according to the touchdown even if the position of the pressing does not move while satisfying the predetermined condition,
An electronic device comprising: The change of the display according to the touchdown is a notification that changes a display mode of the selection item displayed at the touch position of the user with respect to the selection item displayed on the display unit. The electronic device according to claim 1. The control means, when a specific area of the touch panel is specified as an area that does not accept a specific touch operation, if there is a touch operation in the specific area, the first pressure and the second pressure are equal the electronic device according to claim 1 or 2, characterized in that. The electronic device according to claim 3, wherein the specific touch operation is a single touch on the touch panel. The touch panel further includes a timing unit that measures a time during which the touch panel is pressed with the first pressure or more,
Wherein, the electronic device according to any one of claims 1 to 4 time measured by the clock means is characterized in that the turning off the power supply of the electronic device after a lapse of the predetermined time. A method for controlling an electronic device including a pressure-sensitive touch panel,
When the first and at least a pressure higher second than the first pressure of the pressure below the pressure there Ru predetermined on the touch panel, the position of the pressing is not moving satisfies a predetermined condition If not, a first step of not changing the display according to the touchdown indicating the start of the touch operation even if there is a pressure equal to or greater than the first pressure regardless of the touch position;
If the position of the pressing is to move satisfies the predetermined condition, a second step for changing the display in accordance with the touchdown without pressing users exceeds the second pressure ,
When said second there are more pressing pressure, a third step for changing the display in accordance with the touch-down even the position of the pressed not move satisfies the predetermined condition,
A control method comprising: A program for a computer to function as each unit of the electronic apparatus according to any one of claims 1 to 5. Computer, claims 1 to 5 stored a computer-readable storage medium storing a program to function as each unit of the electronic apparatus according to any one.