JP2016001392A - Touch panel device and computer program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a touch panel device and a computer program capable of avoiding operation input that a user does not intend.SOLUTION: A capacitance-type touch panel device includes a touch panel, a sensor part for outputting a signal at a signal level corresponding to change in capacitance following approach and contact of an operating body to the touch panel, and a storage part for storing a threshold corresponding to the signal level, and detects contact of the operating body to the touch panel, based on the level of the signal level and the threshold. The capacitance-type touch panel device includes: first acquisition means for acquiring a signal level of a signal outputted by the sensor part in a state where a resin sheet is being sandwiched between the touch panel and the operating body; second acquisition means for acquiring the signal level of a signal outputted by the sensor part in a state where the operating body is in contact with the touch panel; and threshold correcting means for correcting the threshold stored in the storage part, based on the two signal levels acquired by the first and second acquisition means.

Description

  The present invention relates to a touch panel device and a computer program that can avoid an operation input unintended by a user.

  In recent years, touch panels have been widely used in operation units of various electronic devices. In particular, among various methods for realizing a touch panel device, a capacitive touch panel device that performs detection using a capacitive sensor is widely used in various electronic devices.

  Generally, the capacitance sensor includes an electrode pad formed of a transparent conductive film such as ITO (Indium Tin Oxide) and a wiring electrode for transmitting a change in capacitance of the electrode pad. In such a capacitance sensor, when an operating body such as a stylus pen or a fingertip of a human body approaches the electrode pad, the capacitance between the electrode pad and the wiring electrode changes. Is output to the control unit via the wiring electrode, it is possible to detect that the operation on the electrode pad has been performed on the control unit side.

JP 2012-103995 A

  However, in the capacitive touch panel device as described above, since the approach or contact of the operating body is detected by a subtle change in capacitance, even if the user is not consciously performing a touch operation, When the operating body approaches the touch panel, it is regarded as a touch operation, and there is a possibility that an operation not intended by the user is executed.

  In addition, when a capacitive touch panel device is configured to accept handwritten input using a stylus pen, there is a large difference in capacitance depending on the material and shape of the stylus pen, so a dedicated stylus pen attached to the touch panel device. When using other than the above, there has been a phenomenon in which the handwritten input line is interrupted in the middle or the line is connected at a location not intended by the user.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a touch panel device and a computer program that can avoid an operation input unintended by a user.

  The touch panel device according to the present application includes a touch panel, a sensor unit that detects a change in capacitance due to the proximity and contact of the operating body to the touch panel, and outputs a signal at a signal level corresponding to the detected change in capacitance. And a storage unit that stores a threshold value with respect to the signal level of the signal output from the sensor unit, and that detects the contact of the operating body with the touch panel based on the level of the signal level and the threshold value. 1st acquisition means for acquiring a signal level of a signal output from the sensor unit in a state where a resin sheet is sandwiched between the touch panel and the operation body, and the operation body is the touch panel The second acquisition means for acquiring the signal level of the signal output by the sensor unit in contact with the two, and the two signals acquired by the first and second acquisition means Based on the bell, characterized in that it comprises a threshold value correction means for correcting the threshold stored in the storage unit.

  The touch panel device of the present application has a receiving unit that receives a predetermined operation, and when the predetermined operation is received by the receiving unit, the resin sheet is sandwiched between the touch panel and the operating body. An informing means for informing information indicating that the signal level of the signal output from the sensor section should be obtained, and the first obtaining means outputs the information after the informing means has informed the information. A signal level of a signal is acquired, and the notification unit outputs a signal output from the sensor unit in a state where the operation body is in contact with the touch panel after the first acquisition unit acquires the signal level. Information indicating that the signal level should be acquired is reported.

  The touch panel device according to the present application includes: a receiving unit that receives a predetermined operation; and a signal that is output from the sensor unit when the operating body is in contact with the touch panel when the receiving unit receives the predetermined operation. Notification means for notifying information indicating that the level should be acquired, and the second acquisition means acquires a signal level of a signal output from the sensor unit after the notification means notifies the information. The informing means outputs a signal output from the sensor unit in a state where the resin sheet is sandwiched between the touch panel and the operating body after the second obtaining means obtains a signal level. Information indicating that the signal level should be acquired is reported.

  The touch panel device of the present application further includes means for receiving identification information for identifying an operating tool, and stores the threshold corrected by the threshold correction means for the operating tool in association with the received identification information. It is characterized by.

  In the touch panel device of the present application, the threshold correction unit corrects the threshold stored in the storage unit to a value between two signal levels acquired by the first and second acquisition units. Features.

  The computer program of the present application is applied to the touch panel based on the level of the signal level and the threshold value of the signal output from the sensor unit in accordance with the change in the capacitance due to the proximity and contact of the operating body to the touch panel. In the computer program for detecting contact of the operating body, the computer acquires a signal level of a signal output from the sensor unit in a state where a resin sheet is sandwiched between the touch panel and the operating body. Means for notifying information indicating the power, first acquisition means for acquiring the signal level of the signal output from the sensor unit after the information is notified, and the operating body after the first acquisition means acquires the signal level. A hand for notifying information indicating that the signal level of the signal output from the sensor unit should be acquired in a state of touching the touch panel , After notifying the information, a second acquisition unit that acquires a signal level of a signal output from the sensor unit, and the threshold value is corrected based on the two signal levels acquired by the first and second acquisition units. It functions as a threshold value correction means.

  The computer program of the present application is applied to the touch panel based on the level of the signal level and the threshold value of the signal output from the sensor unit in accordance with the change in the capacitance due to the proximity and contact of the operating body to the touch panel. In the computer program for detecting the contact of the operating body, means for notifying the computer that the signal level of the signal output from the sensor unit should be acquired in a state where the operating body is in contact with the touch panel The first acquisition means for acquiring the signal level of the signal output from the sensor unit after the information is notified, and the resin between the touch panel and the operation body after the first acquisition means acquires the signal level. A hand for notifying information indicating that the signal level of the signal output from the sensor unit should be acquired in a state where a manufactured sheet is sandwiched , After notifying the information, a second acquisition unit that acquires a signal level of a signal output from the sensor unit, and the threshold value is corrected based on the two signal levels acquired by the first and second acquisition units. It functions as a threshold value correction means.

  According to the present application, even when an arbitrary operation tool is used, an operation input unintended by the user can be avoided.

It is a block diagram which shows the internal structure of a touchscreen apparatus. It is a block diagram explaining the functional structure of a touchscreen control part. It is explanatory drawing explaining the threshold value correction process which concerns on this Embodiment. It is explanatory drawing explaining the threshold value correction process which concerns on this Embodiment. 4 is a flowchart illustrating a procedure of processing executed by the touch panel device according to Embodiment 1. 10 is a flowchart illustrating a procedure of processing executed by the touch panel device according to Embodiment 2. It is a schematic diagram which shows an example of the threshold value table with which a threshold value memory | storage part is provided. 10 is a flowchart illustrating a procedure of processing executed by the touch panel device according to Embodiment 3.

Hereinafter, the present invention will be specifically described with reference to the drawings showing embodiments thereof.
Embodiment 1 FIG.
FIG. 1 is a block diagram showing an internal configuration of the touch panel device 1. The touch panel device 1 according to the present embodiment includes a display panel 1A and a touch panel 1B. In order to control operations of the display panel 1A and the touch panel 1B, a main control unit 11, a storage unit 12, and a backlight control unit 13 are provided. , A display control unit 14, a touch panel control unit 15, an operation unit 16, a communication unit 17, and the like.

  The main control unit 11 is configured by, for example, a CPU, a RAM, and the like. The CPU of the main control unit 11 controls the operation of each part of the hardware by loading and executing various computer programs stored in the storage unit 12 on the RAM, and the touch panel device 1 according to the present invention. To function as.

  The storage unit 12 is a nonvolatile storage unit such as an EEPROM (Electrically Erasable and Programmable ROM), a flash memory, or an HDD (Hard Disk Drive). The storage unit 12 stores a basic program for controlling the operation of the entire apparatus, a computer program for realizing a specific function, an application program arbitrarily added by a user, and the like. The storage unit 12 stores various data such as data necessary for operating the touch panel device 1, data created by the user using the touch panel device 1, and data acquired from the outside.

  A backlight (not shown) is connected to the backlight control unit 13, and the display panel 1 </ b> A is connected to the display control unit 14. The backlight includes a light source such as a white LED (Light Emitting Diode) or a cold cathode fluorescent tube, and illuminates the display panel 1A from the back side. The backlight control unit 13 controls turning on and off of the light source of the backlight in accordance with instructions from the main control unit 11. The display panel 1A is a color liquid crystal panel, for example, and displays various information such as images and characters by the display control unit 14 driving the display panel 1A in accordance with an instruction from the main control unit 11.

  A touch panel 1 </ b> B is connected to the touch panel control unit 15. The touch panel control unit 15 controls the operation of the touch panel 1B according to an instruction from the main control unit 11. Further, the touch panel control unit 15 detects the position on the display panel 1A designated by the stylus pen (or the user's finger) based on the output from the sensor 10 (see FIG. 2) provided in the touch panel 1B. The position information thus output is output to the main control unit 11.

  The operation unit 16 includes various switches and outputs a signal corresponding to the operation state of the switch to the main control unit 11. The main control unit 11 executes various processes according to signals output from the operation unit 16. The switch provided in the operation unit 16 may be a physical switch (hardware switch) provided in the casing of the touch panel device 1, and is a software switch that is displayed on the display panel 1A and receives an operation through the touch panel 1B. There may be.

  The communication unit 17 includes an interface for connecting an external device using a wired or wireless communication method. As a wired communication method, for example, communication using a USB cable can be used. As a wireless communication method, for example, wireless communication conforming to the IEEE 802.1 standard, Bluetooth (registered trademark), or the like can be used.

  FIG. 2 is a block diagram illustrating a functional configuration of the touch panel control unit 15. The touch panel 1B is disposed at each intersection of the drive line and the sense line, and sensors 10, 10,..., 10 for detecting a touch operation on the touch panel 1B (a touch operation on the touch panel 1B using a stylus pen or the like). Is provided. The sensor 10 included in the touch panel 1B according to the present embodiment is a capacitive sensor, and when the user performs a touch operation, the sensor 10 detects a change in capacitance between the drive line and the sense line. Then, a signal having a signal level corresponding to the change is output.

  The touch panel control unit 15 detects, through the sense line, a sensor drive unit 15A that scans and drives each of the sensors 10, 10,... And a detection processing unit 15B that calculates the coordinates of the place where the touch operation is performed.

  The detection processing unit 15B includes, for example, a signal input unit 151, a threshold storage unit 152, a touch operation detection unit 153, a detection result output unit 154, and a threshold correction unit 155.

  A signal output from the sensor 10 is input to the signal input unit 151. The signal input unit 151 converts the analog signal output from the sensor 10 into a digital signal by performing AD conversion, and sends the converted signal to the touch operation detection unit 153.

  The threshold storage unit 152 stores a threshold for determining whether a touch operation has been detected. Whether the touch operation detection unit 153 compares the signal level of the signal input through the signal input unit 151 with the threshold value stored in the threshold value storage unit 152, and detects the touch operation based on the comparison result. Determine whether or not. Further, the touch operation detection unit 153 calculates the coordinates of the place where the touch operation is performed based on the signal input through the signal input unit 151. The touch operation detection unit 153 sends to the detection result output unit 154 the determination result of whether or not the touch operation has been detected and the calculation result of the coordinates of the location where the touch operation has been performed.

  The detection result output unit 154 notifies the main control unit 11 of the touch operation determination result and the coordinate calculation result input from the touch operation detection unit 153. The main control unit 11 executes various processes based on the touch operation determination result and the coordinate calculation result notified from the detection result output unit 154. The process executed by the main control unit 11 includes a process for starting an application, a process for executing a function assigned to a software switch, a process corresponding to a GUI (Graphical User Interface) element such as an icon, a menu, and a button. Various processes are included.

  The threshold correction unit 155 corrects the threshold stored in the threshold storage unit 152. In the present embodiment, it is determined whether or not a touch operation has been detected by comparing the level of the signal input through the signal input unit 151 with the threshold stored in the threshold storage unit 152. Can do. However, in the touch panel 1 </ b> B using the capacitive sensor 10, a difference in capacitance often occurs depending on the material of the stylus pen that contacts the touch panel 1 </ b> B, the shape of the pen tip, and the like. Even when the threshold value is set appropriately for the attached dedicated stylus pen, when other stylus pens are used, the touch operation cannot be detected properly, or handwriting input Have been interrupted in the middle, and there have been phenomena where lines are connected at locations not intended by the user.

  The touch panel device 1 according to the present embodiment includes a threshold value correction unit 155 that corrects the threshold value stored in the threshold value storage unit 152, and is configured to be able to set a threshold value for detecting a touch operation for each stylus pen. ing.

  3 and 4 are explanatory diagrams for explaining threshold correction processing according to the present embodiment. The touch panel device 1 according to the present embodiment is configured to be able to correct the threshold value stored in the threshold value storage unit 152 at a timing desired by the user. The touch panel device 1 executes threshold correction processing when a predetermined operation is received through the operation unit 16 or the touch panel 1B.

  The threshold value correction unit 155 of the touch panel device 1 receives the touch operation in a state where the axis of the stylus pen 2 stands perpendicular to the detection surface of the touch panel 1B in the threshold value correction process (see FIG. 3). The signal level V0 of the signal input through the signal input unit 151 is acquired.

  Further, the threshold correction unit 155 has a resin sheet S (hereinafter referred to as a resin sheet S) having an appropriate thickness (for example, 0.1 to 0.5 mm) placed on the detection surface of the touch panel 1B. A touch operation with the same stylus pen 2 is accepted (see FIG. 4), and a signal level V1 of a signal input through the signal input unit 151 when the touch operation is performed is acquired.

  The signal level V0 represents the signal level of the signal output from the sensor 10 when the stylus pen 2 comes into contact with the detection surface of the touch panel 1B. On the other hand, the signal level V1 represents the signal level of the signal output by the sensor 10 immediately before the stylus pen 2 contacts the detection surface of the touch panel 1B. Therefore, the threshold correction unit 155 can calculate a value (for example, an intermediate value) between the signal level V0 and the signal level V1 as a corrected threshold.

  The threshold value correction unit 155 sets the threshold value by causing the threshold value storage unit 152 to store the calculated corrected threshold value as a threshold value for the stylus pen 2.

  FIG. 5 is a flowchart for explaining a procedure of processing executed by the touch panel device 1 according to the first embodiment. The main control unit 11 of the touch panel device 1 determines whether a predetermined operation is accepted through the operation unit 16 or the touch panel 1B (step S11). When the predetermined operation is not received (S11: NO), the main control unit 11 waits until the predetermined operation is received without starting the threshold value correction process.

  When the predetermined operation is accepted (S11: YES), the main control unit 11 starts threshold correction processing. At this time, the main control unit 11 may be configured to realize the following processing by reading out and executing an application program for executing threshold correction processing from the storage unit 12.

  The main control unit 11 controls the display control unit 14 to display information indicating that the touch operation should be performed in a state where the stylus pen 2 is in contact with the detection surface of the touch panel 1B on the display panel 1A. It is requested to perform a touch operation using the stylus pen 2 (step S12). In the present embodiment, information is displayed on the display panel 1A to request a touch operation using the stylus pen 2. However, voice output means for outputting voice is provided, and the stylus pen 2 is a touch panel. It is good also as a structure which requests | requires the touch operation using the stylus pen 2 by outputting as an audio | voice the information that touch operation should be performed in the state which contacted the detection surface of 1B.

  Next, the touch operation detection unit 153 in the touch panel control unit 15 determines whether a signal accompanying the touch operation is detected based on the signal level of the signal input through the signal input unit 151 (step S13). When a signal associated with the touch operation is not detected (S13: NO), the touch operation detection unit 153 waits until a signal associated with the touch operation is detected. At this time, the touch operation detection unit 153 outputs an instruction to the main control unit 11 so that information indicating that the touch operation should be performed in a state where the stylus pen 2 is in contact with the detection surface of the touch panel 1B is displayed on the display panel 1A. It is good also as a structure displayed again.

  When it is determined that a signal associated with the touch operation has been detected (S13: YES), the touch operation detection unit 153 acquires the signal level V0 of the detected signal (step S14), and uses the acquired signal level V0 as the threshold correction unit 155. To the main control unit 11 that the detection result has been obtained. The threshold correction unit 155 holds the signal level V0 notified from the touch operation detection unit 153.

  Receiving the notification that the detection result is obtained from the touch operation detection unit 153, the main control unit 11 controls the display control unit 14, and the stylus pen 2 with the resin sheet S placed on the detection surface of the touch panel 1B. By displaying on the display panel 1A information indicating that the touch operation should be performed, the user is requested to perform the touch operation using the stylus pen 2 while the resin sheet S is placed (step S15). In the present embodiment, information indicating that the touch operation with the stylus pen 2 should be performed on the display panel 1A with the resin sheet S placed on the detection surface of the touch panel 1B is displayed on the display panel 1A. May be output by voice.

  Next, the touch operation detection unit 153 in the touch panel control unit 15 determines whether a signal associated with the touch operation is detected based on the signal level of the signal input through the signal input unit 151 (step S16). When a signal associated with the touch operation is not detected (S16: NO), the touch operation detection unit 153 waits until a signal associated with the touch operation is detected. At this time, the touch operation detection unit 153 outputs an instruction to the main control unit 11 to display again on the display panel 1A information indicating that the touch operation with the stylus pen 2 should be performed while the resin sheet S is placed. A configuration may be adopted.

  When it is determined that a signal associated with the touch operation has been detected (S16: YES), the touch operation detection unit 153 acquires the signal level V1 of the detected signal (step S17), and uses the acquired signal level V1 as a threshold correction unit 155. To the main control unit 11 that the detection result has been obtained. The threshold correction unit 155 holds the signal level V1 notified from the touch operation detection unit 153.

  The threshold correction unit 155 corrects the threshold stored in the threshold storage unit 152 based on the two signal levels V0 and V1 notified from the touch operation detection unit 153 (step S18). For example, the threshold value correction unit 155 calculates a value (for example, an intermediate value) between the signal level V0 and the signal level V1 as a corrected threshold value, and rewrites the threshold value stored in the threshold value storage unit 152 with the corrected threshold value. As a result, the threshold value is corrected.

  As described above, in the present embodiment, an appropriate threshold value can be set for the stylus pen 2 that the user intends to use. For this reason, even if a dedicated stylus pen attached to the touch panel device 1 is different from that of the material, the shape of the pen tip, etc., the handwritten input line is interrupted in the middle or the user does not intend. Occurrence of a phenomenon that a line is connected at a place can be suppressed.

  In the present embodiment, after acquiring the signal level V0 without the resin sheet S interposed, the signal level V1 with the resin sheet S interposed is acquired. Information indicating that the touch operation with the stylus pen 2 should be performed in a state where the resin sheet S is placed on the detection surface of the touch panel 1B, the signal level V1 in a state where the resin sheet S is interposed is obtained, and then The stylus pen 2 may be notified that the touch operation should be performed in a state where the stylus pen 2 is in contact with the detection surface of the touch panel 1B, and may acquire the signal level V0 in a state where the resin sheet S is not interposed.

Embodiment 2. FIG.
In Embodiment 1, the touch operation is performed with the signal level V1 when the touch operation is performed with the resin sheet S placed on the detection surface of the touch panel 1B and the resin sheet S is removed from the detection surface of the touch panel 1B. However, the threshold for detecting a touch operation is not limited to the above-described value.
In the second embodiment, a configuration in which a detection range (upper limit threshold and lower limit threshold) is set for the signal level of a signal obtained from the touch panel 1B as a threshold for detecting a touch operation will be described. Since the internal configuration of the touch panel device 1 is the same as that of the first embodiment, the description thereof is omitted.

  The threshold value storage unit 152 of the touch panel device 1 according to the second embodiment stores an upper limit threshold value β1 and a lower limit threshold value that define the detection range of the touch operation as the threshold value (initial value) set for the dedicated stylus pen attached to the touch panel device 1 It is assumed that β0 and reference signal levels α1 and α0 are stored. That is, using the dedicated stylus pen, the signal level when the touch operation is performed with the resin sheet S placed on the detection surface of the touch panel 1B is α1, and the touch is performed with the resin sheet S removed from the detection surface of the touch panel 1B. When the signal level when the operation is performed is α0, threshold values set based on the signal levels α1 and α0 are stored in the threshold storage unit 152 as β1 (upper limit threshold) and β0 (lower limit threshold). To do.

  FIG. 6 is a flowchart for explaining a procedure of processing executed by the touch panel device 1 according to the second embodiment. The touch panel device 1 according to Embodiment 2 performs the processing of steps S11 to S17 in the flowchart shown in FIG. 5, thereby causing the signal level when the pen tip of the stylus pen 2 is brought into contact with the detection surface of the touch panel 1B. V0 and a signal level V1 when a touch operation is performed using the stylus pen 2 with the resin sheet S placed on the detection surface of the touch panel 1B are acquired.

  Next, the threshold value correction unit 155 reads the upper limit threshold value β1 and lower limit threshold value β0 stored in the threshold value storage unit 152 and the reference signal levels α1 and α0, and refers to these values to determine the upper limit threshold value for the stylus pen 2 and A lower threshold is set (step S19). For example, the threshold correction unit 155 can calculate β1 × {1− (α1−V1) / α1} as the upper limit threshold for the new stylus pen 2, and β0 × {1− (α0−V0) / α0}. Can be calculated as a new lower threshold.

  As described above, in the second embodiment, an appropriate threshold can be set for the stylus pen 2 that the user intends to use with reference to the thresholds (upper limit threshold and lower limit threshold) determined as initial settings.

Embodiment 3 FIG.
In the third embodiment, a configuration in which a threshold set for each stylus pen is stored in association with identification information of the stylus pen will be described.

  The threshold value storage unit 152 of the touch panel device 1 according to Embodiment 3 includes a threshold value table that stores the set threshold value and identification information for identifying the stylus pen 2 in association with each other. FIG. 7 is a schematic diagram illustrating an example of a threshold table provided in the threshold storage unit 152. The touch panel device 1 according to Embodiment 3 executes threshold correction processing for a new stylus pen 2 and, when a threshold is set, associates the identification information of the stylus pen 2 with the set threshold and registers them in the threshold table.

  The identification information of the stylus pen 2 may be input by the user through the operation unit 16 or the touch panel 1B, and communicates with the memory for storing the identification information in the stylus pen 2 and the communication unit 17 on the touch panel device 1 side. It is also possible to provide a means for obtaining the identification information of the stylus pen 2 by communication. Further, the ID tag may be attached to the stylus pen 2 and the touch panel device 1 may acquire the identification information by reading the ID tag attached to the stylus pen 2.

  FIG. 8 is a flowchart for explaining a procedure of processing executed by the touch panel device 1 according to the third embodiment. The main control unit 11 of the touch panel device 1 determines whether or not the identification information of the stylus pen 2 has been received (step S21). When the identification information is not received (S21: NO), the main control unit 11 stands by until the identification information is received.

  When it is determined that the identification information has been accepted (S21: YES), the main control unit 11 refers to the threshold value table stored in the threshold value storage unit 152, and determines whether or not the accepted identification information is registered in the threshold value table. Judgment is made (step S22).

  When the received identification information is registered in the threshold value table (S22: YES), the main control unit 11 reads out the threshold value stored in association with the identification information and sets it as a threshold value for detecting a touch operation. (Step S23). In the subsequent processing, the touch panel device 1 detects a touch operation using the threshold set in step S23.

  On the other hand, when the received identification information is not registered in the threshold value table (S22: NO), the main control unit 11 causes the touch panel control unit 15 to perform threshold value correction processing (step S24). As the threshold correction process, the threshold correction process described in the first embodiment or the threshold correction process described in the second embodiment can be executed.

  The main control unit 11 determines whether or not the threshold correction processing by the touch panel control unit 15 has been completed (step S25). When the threshold correction process is not completed (S25: NO), the main control unit 11 waits until the threshold correction process is completed.

  When the threshold correction process is completed (S25: YES), the threshold set by the threshold correction process is registered in the threshold table in association with the identification information received in step S21 (step S26), and a touch operation is detected. The threshold value is set (step S27). In the subsequent processing, the touch panel device 1 detects a touch operation using the threshold set in step S27.

  As described above, in the third embodiment, even when a plurality of stylus pens 2 are used, it is possible to detect a touch operation using a threshold set for each stylus pen 2.

  The embodiment disclosed this time is to be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the meanings described above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  Regarding the above embodiment, the following additional notes are disclosed.

  The touch panel device (1) of the present application detects a change in capacitance due to the proximity and contact of the operating body (2) to the touch panel (1B) and the touch panel (1B), and detects the change in capacitance. A sensor unit (10) that outputs a signal of a corresponding signal level, and a storage unit (152) that stores a threshold value for the signal level of the signal output from the sensor unit (10), the signal level and the threshold value In the capacitive touch panel device (1) that detects the touch of the operating body (2) to the touch panel (1B) based on the height of the touch panel, between the touch panel (1B) and the operating body (2) The first acquisition means (153) for acquiring the signal level of the signal output from the sensor unit (10) in a state where the resin sheet (S) is sandwiched between the operation body (2) and the touch panel (1B). ) Based on the two signal levels acquired by the second acquisition means (153) that acquires the signal level of the signal output from the sensor unit (10) in contact with the first and second acquisition means (153). And a threshold value correcting means (155) for correcting the threshold value stored in the storage unit (152).

  In the present application, an appropriate threshold value can be set for the operation tool that the user intends to use. For this reason, even if a dedicated operation tool attached to the touch panel device is used which has a different material or shape, the handwritten input line is interrupted in the middle, or the line is connected at a place not intended by the user. The occurrence of the phenomenon can be suppressed.

  The touch panel device (1) of the present application includes a reception unit (16, 1B) for receiving a predetermined operation, and the touch panel (1B) and the operation when the predetermined operation is received by the reception unit (16, 1B). Informing means (14) for informing information that the signal level of the signal output from the sensor section (10) should be acquired in a state where the resin sheet (S) is sandwiched between the body (2) and the body (2). The first acquisition means (153) is configured to acquire a signal level of a signal output from the sensor unit (10) after the notification means (14) notifies the information. The notification unit (14) outputs the sensor unit (10) in a state where the operation body (2) is in contact with the touch panel (1B) after the first acquisition unit (153) acquires the signal level. The signal level of the signal Wherein the information to the effect that obtained are to be broadcast.

  In the present application, information indicating that the signal level of the signal output from the sensor unit should be acquired in a state where a resin sheet is sandwiched between the operation unit and the sensor unit in a state where the operation unit is in contact with the touch panel. Since the information indicating that the signal level of the output signal is to be acquired is notified, it is possible to prevent the threshold value from being set based on an erroneous signal.

  The touch panel device (1) of the present application includes a receiving unit (16, 1B) that receives a predetermined operation, and when the predetermined operation is received by the receiving unit (16, 1B), the operating body (2) Informing means (14) for notifying that the signal level of the signal output from the sensor section (10) should be obtained in a state of being in contact with the touch panel (1B), the second obtaining means (153) Is configured to acquire a signal level of a signal output from the sensor unit (10) after the notification unit (14) notifies the information, and the notification unit (14) includes the second acquisition unit. After the signal level is acquired by (153), the sensor unit (10) outputs the resin sheet (S) sandwiched between the touch panel (1B) and the operating body (2). The signal level of the signal Wherein the information to the effect that obtained are to be broadcast.

  In the present application, information indicating that the signal level of the signal output from the sensor unit should be acquired in a state where a resin sheet is sandwiched between the operation unit and the sensor unit in a state where the operation unit is in contact with the touch panel. Since the information indicating that the signal level of the output signal is to be acquired is notified, it is possible to prevent the threshold value from being set based on an erroneous signal.

  The touch panel device (1) of the present application further includes means (1B) for receiving identification information for identifying the operating tool (2), and the threshold corrected by the threshold correcting means (155) for the operating tool (2). The information is stored in association with the received identification information.

  In the present application, even when a plurality of operation tools are used, it is possible to detect a touch operation using a threshold set for each operation tool.

  In the touch panel device (1) of the present application, the threshold correction unit (155) has two signal levels acquired by the first and second acquisition units (153), which are the threshold values stored in the storage unit (152). It is characterized in that it is corrected to a value between.

  In the present application, an appropriate threshold value can be set for the operation tool that the user intends to use. For this reason, even if a dedicated operation tool attached to the touch panel device is used which has a different material or shape, the handwritten input line is interrupted in the middle, or the line is connected at a place not intended by the user. The occurrence of the phenomenon can be suppressed.

  The computer program of the present application provides a signal level of a signal output from the sensor unit (10) to the computer (15) in accordance with a change in capacitance due to the proximity and contact of the operating body (2) to the touch panel (1B). In the computer program for detecting the touch of the operating body (2) on the touch panel (1B) based on the height of the touch panel (1B), the computer (15), the touch panel (1B) and the operating body (2) Means (14) for notifying the information that the signal level of the signal output from the sensor unit (10) should be acquired in a state where the resin sheet (S) is sandwiched between Later, the first acquisition means (153) for acquiring the signal level of the signal output from the sensor unit (10), and after the first acquisition means (153) acquires the signal level, Means (14) for notifying information that the signal level of the signal output from the sensor unit (10) should be acquired in a state where the operation body (2) is in contact with the touch panel (1B); After that, based on the two signal levels acquired by the second acquisition means (153) for acquiring the signal level of the signal output from the sensor unit (10) and the first and second acquisition means (153) It is characterized by functioning as threshold correction means (155) for correcting the threshold.

  In the present application, information indicating that the signal level of the signal output from the sensor unit should be acquired in a state where a resin sheet is sandwiched between the operation unit and the sensor unit in a state where the operation unit is in contact with the touch panel. Since the signal necessary for setting the threshold is acquired after notifying the information that the signal level of the signal output from the signal should be acquired, it is prevented that the threshold is set based on an erroneous signal. The

  The computer program of the present application provides a signal level of a signal output from the sensor unit (10) to the computer (15) in accordance with a change in capacitance due to the proximity and contact of the operating body (2) to the touch panel (1B). In the computer program for detecting the touch of the operating body (2) to the touch panel (1B) based on the height of the threshold and the threshold, the operating body (2) touches the touch panel. Means (14) for notifying information that the signal level of the signal output from the sensor unit (10) should be acquired in a state, and acquiring the signal level of the signal output by the sensor unit after notifying the information After the first acquisition means (153) and the first acquisition means (153) acquire the signal level, the touch panel (1B) and the operating body (2) Means (14) for notifying the information that the signal level of the signal output from the sensor unit (10) should be acquired in a state where the resin sheet (S) is sandwiched between the information and the information, The second acquisition means (153) for acquiring the signal level of the signal output from the sensor unit (10), and the threshold value is corrected based on the two signal levels acquired by the first and second acquisition means (153). It functions as a threshold value correction means (155).

  In the present application, information indicating that the signal level of the signal output from the sensor unit should be acquired in a state where a resin sheet is sandwiched between the operation unit and the sensor unit in a state where the operation unit is in contact with the touch panel. Since the signal necessary for setting the threshold is acquired after notifying the information that the signal level of the signal output from the signal should be acquired, it is prevented that the threshold is set based on an erroneous signal. The

DESCRIPTION OF SYMBOLS 1 Touch panel apparatus 1A Display panel 1B Touch panel 2 Stylus pen 11 Main control part 12 Storage part 13 Backlight control part 14 Display control part 15 Touch panel control part 16 Operation part 17 Communication part 151 Signal input part 152 Threshold storage part 153 Touch operation detection part 154 Detection result output unit 155 Threshold correction unit

Claims (7)

A touch panel, a sensor unit that detects a change in capacitance due to the proximity and contact of the operation body to the touch panel, and outputs a signal level signal corresponding to the detected change in capacitance, and the sensor unit outputs In a capacitive touch panel device that includes a storage unit that stores a threshold value for a signal level of a signal to be detected, and detects contact of the operating body with the touch panel based on a level of the signal level and the threshold value.
First acquisition means for acquiring a signal level of a signal output by the sensor unit in a state where a resin sheet is sandwiched between the touch panel and the operation body;
Second acquisition means for acquiring a signal level of a signal output by the sensor unit in a state where the operating body is in contact with the touch panel;
A touch panel device comprising: threshold correction means for correcting the threshold stored in the storage unit based on the two signal levels acquired by the first and second acquisition means. A receiving means for receiving a predetermined operation;
When the predetermined operation is received by the receiving means, the signal level of the signal output by the sensor unit in a state where the resin sheet is sandwiched between the touch panel and the operating body should be acquired. An informing means for informing the information of
The first acquisition unit is configured to acquire a signal level of a signal output from the sensor unit after the notification unit notifies the information.
The notifying means notifies the information that the signal level of the signal output from the sensor unit should be acquired in a state where the operating body is in contact with the touch panel after the first acquiring means acquires the signal level. The touch panel device according to claim 1, wherein the touch panel device is configured as described above. A receiving means for receiving a predetermined operation;
Informing means for informing information indicating that the signal level of the signal output from the sensor unit should be acquired in a state where the operating body is in contact with the touch panel when the accepting means accepts the predetermined operation; Prepared,
The second acquisition unit is configured to acquire a signal level of a signal output from the sensor unit after the notification unit notifies the information.
The informing means obtains a signal level of a signal output by the sensor unit in a state where the resin sheet is sandwiched between the touch panel and the operating body after the second obtaining means obtains a signal level. The touch panel device according to claim 1, wherein information indicating that it should be acquired is notified. Means for receiving identification information for identifying the operating body;
4. The touch panel device according to claim 1, wherein the threshold value corrected by the threshold value correction unit for the operation body is stored in association with the received identification information. 5.   2. The threshold correction unit corrects the threshold stored in the storage unit to a value between two signal levels acquired by the first and second acquisition units. The touch panel device according to claim 1. Based on the level of a signal level and a threshold value of a signal output from the sensor unit in accordance with the change in the capacitance due to the proximity and contact of the operating body to the touch panel, the touch of the operating body to the touch panel In a computer program for detecting
The computer,
Means for notifying information indicating that the signal level of the signal output by the sensor unit should be acquired in a state where a resin sheet is sandwiched between the touch panel and the operation body;
A first acquisition means for acquiring a signal level of a signal output from the sensor unit after informing the information;
Means for notifying information indicating that the signal level of the signal output from the sensor unit should be acquired in a state where the operating body is in contact with the touch panel after the first acquisition means acquires the signal level;
A second acquisition unit that acquires a signal level of a signal output from the sensor unit after notifying the information; and a threshold value that corrects the threshold based on the two signal levels acquired by the first and second acquisition units. A computer program for functioning as a correction means. Based on the level of a signal level and a threshold value of a signal output from the sensor unit in accordance with the change in the capacitance due to the proximity and contact of the operating body to the touch panel, the touch of the operating body to the touch panel In a computer program for detecting
The computer,
Means for notifying information indicating that a signal level of a signal output by the sensor unit should be acquired in a state where the operating body is in contact with the touch panel;
A first acquisition means for acquiring a signal level of a signal output from the sensor unit after informing the information;
Information that the signal level of the signal output by the sensor unit should be acquired in a state where a resin sheet is sandwiched between the touch panel and the operating body after the first acquisition unit acquires the signal level. Means for informing
A second acquisition unit that acquires a signal level of a signal output from the sensor unit after notifying the information; and a threshold value that corrects the threshold based on the two signal levels acquired by the first and second acquisition units. A computer program for functioning as a correction means.

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