JP5955002B2 - Correction method for touch panel device and touch panel device - Google Patents

Description

  The present invention relates to a correction method for a touch panel device and a touch panel device.

  There are many electronic devices that are widely used today that are equipped with touch panels. The touch panel can input information to an electronic device by directly bringing a finger or the like into contact with the touch area of the touch panel, and is expected to be further spread as a simple information input means in the future.

  In such a touch panel, there may be a difference between the position coordinates actually touching the touch panel and the detected position coordinates during use. When such a deviation occurs, a finger or the like is brought into contact with a predetermined position on the touch panel, and the deviation between the actual contact position position coordinates and the detected detection position position coordinates is measured. Based on the above, correction is generally performed on the entire touch panel so that the position coordinates of the actual contact position and the position coordinates of the detection position coincide.

JP-A-8-171451

  However, changes in characteristics and the like that occur while using the touch panel may occur partially as well as when they occur as a whole. Even if correction is performed as a whole, it cannot be solved.

  Therefore, there is a need for a correction method for a touch panel device and a touch panel device that can correct and adjust a shift in the detection position that partially occurs.

The present invention relates to a correction method for a touch panel device, comprising: a touch panel contact unit to which a contact point is input; a control unit that controls the touch panel contact unit; and a storage unit provided in the control unit. a step of partial correction area to be part partial compensation by the contact point of the upper Ru is set, in said partial correction region, and the contact position on the touch panel contact portion, detected in the touch panel contact portion when in contact with the contact position A step of calculating partial correction data based on a difference from the detected position, and a step of storing the partial correction data in a storage unit.

The present invention further includes a touch panel contact unit to which a contact point is input, a control unit that controls the touch panel contact unit, and a storage unit that is provided in the control unit. Overall correction data obtained based on a difference between a contact position in the touch panel contact portion and a detection position detected in the touch panel contact portion when contacting the contact position in the entire touch panel contact portion, and the touch panel contact Based on the difference between the contact position at the touch panel contact portion and the detection position detected at the touch panel contact portion when touching the contact position in the partial correction region for performing partial correction set by the contact point on the part The obtained partial correction data is stored.

  ADVANTAGE OF THE INVENTION According to this invention, the correction | amendment method and touch panel apparatus of a touch panel apparatus which can correct | amend and adjust the shift | offset | difference of the detection position which arose partially can be provided.

Explanatory drawing (1) of the shift | offset | difference of the detection position in a touch panel Explanatory drawing of deviation of detection position on touch panel (2) Structure diagram of touch panel device in this embodiment Flowchart of correction method for touch panel device in the present embodiment Explanatory drawing (1) of the correction method of the touchscreen apparatus in this Embodiment. Explanatory drawing (2) of the correction method of the touchscreen apparatus in this Embodiment. Explanatory drawing (3) of the correction method of the touchscreen apparatus in this Embodiment. Explanatory drawing (4) of the correction method of the touchscreen apparatus in this Embodiment. Explanatory drawing (5) of the correction method of the touchscreen apparatus in this Embodiment. Explanatory drawing (6) of the correction method of the touchscreen apparatus in this Embodiment. Explanatory drawing when a line is input to a touch panel device that has undergone partial correction Explanatory drawing when a line is input to the touch panel device where averaging processing is performed Explanatory drawing of the position detection method of the touch-panel apparatus in this Embodiment.

  The form for implementing this invention is demonstrated below. In addition, about the same member etc., the same code | symbol is attached | subjected and description is abbreviate | omitted.

(Displacement of touch panel detection position)
First, the detection position shift on the touch panel will be described. FIG. 1A shows a case where the detection area 920a of the touch panel is entirely displaced inward with respect to the touch area 910 of the touch panel. The detection area on the touch panel indicates an area detected as a coordinate position when a finger or the like is actually brought into contact with the touch area 910 of the touch panel. The area 910 and the detection area coincide with each other. However, when a detection position shift occurs on the touch panel, the touch area 910 of the touch panel and the detection area do not match.

  For example, as shown in FIG. 1A, the detection position 920a may be narrower inward with respect to the touch area 910 of the touch panel. As illustrated in FIG. 1B, the exit area 920 b may be entirely displaced upward with respect to the touch area 910 of the touch panel. As illustrated in FIG. On the other hand, the detection area 920c may be shifted downward as a whole. As shown in FIG. 2A, the detection area 920d is shifted rightward as a whole with respect to the touch area 910 of the touch panel. In some cases, as shown in FIG. 2B, the detection area 920 e may be entirely shifted leftward with respect to the touch area 910 of the touch panel. In addition, as illustrated in FIG. 2C, a part 921f of the detection area 920f may be partially distorted and displaced with respect to the touch area 910 of the touch panel.

  Here, in the case shown in FIG. 1A to FIG. 2B, adjustment can be made by performing overall correction in the touch area 910 of the touch panel as described above. However, in the case shown in FIG. 2C, a part 921f of the detection region 920f that is partially distorted and displaced is sufficiently obtained only by performing the overall correction in the touch region 910 of the touch panel. It cannot be adjusted. That is, only by performing the entire correction, the shift in the part 921f of the detection area 920f is not eliminated, and the shift in the detection position on the touch panel remains.

  The correction method of the touch panel device in the present embodiment is a correction method for correcting a touch panel in which a partially distorted shift occurs in such a portion 921f of the detection region 920f, and the touch panel in the present embodiment. The device is a touch panel device subjected to such correction.

(Touch panel device)
Next, the touch panel device in the present embodiment will be described with reference to FIG. The touch panel device according to the present embodiment includes a touch panel contact unit 10 that is a touch area of a touch panel that directly contacts with a finger or the like, a touch panel controller 20 connected to the touch panel contact unit 10, and a control connected to the touch panel controller 30. Part 30. The control unit 30 may be a device such as a computer. The control unit 30 includes a touch panel driver 31, a storage unit 32, an operating system 33 operated using the touch panel as input means, an application program 34, and the like. The touch panel contact unit 10 is controlled by the control unit 30 via the touch panel controller 20, and information input by a finger or the like at the touch panel contact unit 10 is input to the control unit 30 via the touch panel controller 20. In the present embodiment, corrected data and the like are stored in the storage unit 32. In addition, the storage unit 32 may be provided in a data storage area or the like in the operating system 33.

(Correction method)
Next, based on FIG. 4, a correction method for the touch panel device in the present embodiment will be described. The touch panel device according to the present embodiment incorporates software for performing the correction method according to the present embodiment. When performing correction according to the present embodiment, the touch panel device is installed on the back surface of the touch panel contact portion 10. A display as shown in FIG. 5 is made on the display screen of the display device. Specifically, the display screen of the display device installed on the back surface of the touch panel contact unit 10 performs display area 111 for executing partial correction, display area 112 for deleting partial correction, and overall correction. A display area 113 for deleting the entire correction, a display area 115 indicating the area where the partial correction is performed, a display area 116 for ending the software of the correction method, and the current partial correction. A display area 120 or the like for displaying the current area is displayed. The operation in this software can be performed on the display areas 111 to 116 by bringing a finger or the like into contact with the touch panel contact portion 10 on the display areas 111 to 116 displayed on the display screen. it can. For example, when a finger or the like is brought into contact with the display area 111 for executing partial correction, control for obtaining partial correction data is performed, and the finger or the like is brought into contact with the display area 112 for deleting partial correction. In such a case, the partial correction data stored in the storage unit 32 is deleted. Further, when a finger or the like is brought into contact with the display area 113 for executing the overall correction, control for obtaining the whole correction data is performed, and the finger or the like is brought into contact with the display area 114 for deleting the whole correction. In the case of the error, the entire correction data stored in the storage unit 32 is deleted.

  First, in step 102 (S102), the entire touch panel contact portion 10 is corrected. This process may be performed before the touch panel device is shipped, or may be performed when the detection position is shifted after the shipment. Specifically, in this step, after the software for performing the correction method in the present embodiment is started, the display area 113 for executing the overall correction displayed on the display screen shown in FIG. 5 is displayed. This is done by bringing a finger or the like into contact. Thereafter, as shown in FIG. 6, a finger or the like is brought into contact with the contact points 131 a, 131 b, 131 c, 131 d, and 131 e at the four corners and the center of the touch panel contact unit 10, and the fingers or the like are brought into contact points 131 a, 131 b, The amount of deviation (difference) between the position coordinates touched at 131c, 131d, and 131e and the position coordinates detected by the touch panel device is measured, and overall correction data in the touch panel contact unit 10 is calculated based on the amount of deviation.

  Next, in step 104 (S104), the overall correction data obtained in step 102 is stored in the storage unit 32 of the control unit 30 or the like.

  Next, in step 106 (S106), the touch panel contact unit 10 specifies a partial correction region for performing partial correction. Specifically, the touch panel contact unit 10 brings a finger or the like into contact with the display area 111 for executing partial correction displayed on the display screen shown in FIG. As a result, the display screen is switched to a display screen as shown in FIG. 7, and “Please touch the upper left of the partial correction area” is displayed. Thereafter, when a finger or the like is brought into contact with the touch panel contact portion 10, the display screen is changed to a display screen as shown in FIG. 8, and “Please touch the lower right of the partial correction area” is displayed. Thereafter, a finger or the like is brought into contact with the touch panel contact portion 10 again. As a result, as shown in FIG. 9, a partial correction region 140 for performing partial correction of a substantially rectangular shape with the two contact points 131a and 131b brought into contact with a finger or the like as the upper left and lower right corners is designated. The contact point 132a indicates a contact point with which a finger or the like has contacted according to the display in FIG. 7, and the contact point 132b indicates a contact point with which the finger or the like has contacted according to the display in FIG.

  Next, in step 108 (S108), partial correction is performed on the display screen of the touch panel contact portion 10. Specifically, as shown in FIG. 10, a finger or the like is brought into contact with the contact points 141 a, 141 b, 141 c, 141 d, and 141 e at the four corners and the central part in the partial correction region 140 where the partial correction is performed. A displacement amount (difference) between the position coordinates touched at the contact points 141a, 141b, 141c, 141d, and 141e and the position coordinates detected in the touch panel device is measured, and the partial correction is performed in the touch panel contact portion 10 based on the displacement amount. The partial correction data in the partial correction area 140 for performing is calculated.

  Next, in step 110 (S110), the partial correction data obtained in step 108 is stored in the storage unit 32 of the control unit 30 or the like.

  In the present embodiment, steps 102 and 104 are performed before shipment of the touch panel device, and after the touch panel device is shipped, if the detection position partially shifts, step 106 is performed during maintenance of the touch panel device. 110 may be performed. Further, when the detection position is displaced in the touch panel device being used, all of the steps 102 to 110 described above may be performed. Further, when the entire correction is not performed in the touch panel device, only the partial correction shown in steps 106 to 110 may be performed.

  As described above, by performing the touch panel device correction method according to the present embodiment described above, the storage unit 32 in the control unit 30 of the touch panel device according to the present embodiment stores the data and the partial correction data in the touch panel contact unit 10. Correction data is stored.

  As described above, in the touch panel device according to the present embodiment, the correction data is stored in the storage unit 32. In the partial correction area where the partial correction is performed, the position of the contact position is based on the partial correction data. The position coordinate converted from the coordinate becomes the detection position, and in the area excluding the partial correction area, the position coordinate converted from the position coordinate of the contact position based on the whole correction data becomes the detection position.

(Averaging process)
Next, the position coordinate averaging process will be described for the correction method in the present embodiment. As described above, in the partial correction area where the partial correction is performed, the position coordinate corrected from the position coordinate of the contact position based on the partial correction data becomes the detection position, and in the area excluding the partial correction area, the data for the overall correction is obtained. The position coordinate corrected from the position coordinate of the contact position based on the above becomes the detection position. In this case, when a straight line is drawn by bringing a finger or the like into contact with the display screen of the touch panel contact unit 10, as shown in FIG. 11, the detection position is discontinuous at the boundary 140a of the partial correction region 140 where the partial correction has been performed. Part occurs. That is, the line 150a detected in the partial correction area 140 where the partial correction has been performed and the line 150b detected outside the partial correction area 140 are not continuous lines, but at the boundary 140a of the partial correction area 140. It becomes discontinuous. This is caused by the fact that the partial correction data is used in the partial correction area 140 and the whole correction data is used outside the partial correction area 140 in the touch panel contact portion 10. In this way, if what is intended to be input as a continuous line with a finger or the like is detected as a discontinuous line, the gesture function for inputting information with the finger or the like is hindered, and a desired operation by the gesture input is performed. It may not be possible.

  Therefore, in the present embodiment, based on the equations shown in Equation 1 and Equation 2, the detected coordinate position is averaged. In the equations shown in Equations 1 and 2, A is the coordinate position of the contact point before the partial correction is performed, for example, the coordinate position where the entire correction is performed at the contact point. B is a coordinate position where partial correction is performed at the contact point, t is the distance from the boundary 140a of the area to be averaged, and s is the distance from the boundary 140a to the contact point. The output data is a coordinate position after being corrected based on the equation shown in Equation 1 or 2, and s ≦ t.

  In this averaging process, Equation 1 is used when the contact with the finger or the like moves from outside the partial correction region 140 into the partial correction region 140, and Equation 2 is used when the contact with the finger or the like is applied to the partial correction region 140. This is used when moving from the inside to the outside of the partial correction area 140. This averaging process is performed in the touch panel driver 31 in the control unit 30.

  When moving a finger or the like from outside the partial correction region 140 into contact with the partial correction region 140, as shown in FIG. 12A, the coordinates that have been averaged based on Equation 1 are detected coordinates. Recognized as Specifically, when the contact point is outside the partial correction area 140, the line 150b is recognized based on correction data or the like in the overall correction, and when the contact point is within the partial correction area 140, from the boundary 140a to the range of the distance s. Is averaged based on Equation 1 and recognized as a line 151a, and in a range exceeding the distance s, it is recognized as a line 150a based on correction data in partial correction. Thereby, the line operated with a finger etc. is recognized as a continuous line.

  Further, when the finger or the like is moved from the partial correction area 140 to the outside of the partial correction area 140, the coordinates that have been averaged based on Equation 2 are obtained as shown in FIG. Recognized as detected coordinates. Specifically, when the contact point is within the partial correction area 140, the line 150a is recognized based on the correction data in the partial correction, and when the contact point is outside the partial correction area 140, the distance from the boundary 140a to the range of the distance s. Averaging processing based on Equation 2 is performed and recognized as a line 151b, and in a range exceeding the distance s, it is recognized as a line 150b based on correction data and the like in the overall correction. Thereby, the line operated with a finger etc. is recognized as a continuous line.

(Coordinate position detection)
Next, a coordinate position detection method in the touch panel device according to the present embodiment will be described with reference to FIG.

  First, in step 202 (S202), a finger or the like is brought into contact with the touch panel contact portion 10 of the touch panel device according to the present embodiment. That is, touch.

  Next, in step 204 (S204), the coordinate position at the contact point touched by the touch panel contact unit 10 is output (transmitted) from the touch panel controller 20 to the control unit 30.

  Next, in step 206 (S206), the touch panel driver 31 in the control unit 30 receives the coordinate position of the contact point transmitted from the touch panel controller 20.

  Next, in step 208 (S208), it is determined whether or not overall correction has been performed. Specifically, when data for overall correction is stored in the storage unit 32 in the control unit 30, it is determined that the overall correction has been performed, and the process proceeds to step 210. On the other hand, if the data for the overall correction is not stored in the storage unit 32 in the control unit 30, it is determined that the overall correction has not been made, and the process proceeds to step 212.

  Next, in step 210 (S210), the coordinate position is corrected based on the overall correction data.

  Next, in step 212 (S212), it is determined whether partial correction has been performed. Specifically, if partial correction data is stored in the storage unit 32 in the control unit 30, it is determined that partial correction has been performed, and the process proceeds to step 214. On the other hand, when partial correction data is not stored in the storage unit 32 in the control unit 30, it is determined that partial correction has not been performed, and the process proceeds to step 220.

  Next, in step 214 (S214), it is determined whether or not the contact point is within the partial correction area 140 where partial correction is performed. If it is determined that the contact point is within the partial correction area 140, the process proceeds to step 216. On the other hand, if it is determined that the contact point is not within the partial correction area 140, the process proceeds to step 218.

  Next, in step 216 (S216), the coordinate position is corrected based on the partial correction data.

  Next, in step 218 (S218), an averaging process is performed. Specifically, when the distance from the boundary 140a of the partial correction region 140 is closer to the contact point than the position of the distance s, the coordinate position is averaged based on the equation shown in Equation 1 or Equation 2. The

  Next, in step 220 (S220), the touch panel driver 31 outputs (transmits) the coordinate position to the operating system 33.

  As described above, in the touch panel device according to the present embodiment, the coordinate position of the contact point can be detected.

  In the present embodiment, accurate position detection can be performed by performing partial correction. Even when partial correction is performed, a continuous line input by a finger or the like can be recognized as a continuous line without being recognized as a discontinuous line. In this embodiment, the case where there is one partial correction area has been described, but there may be a plurality of partial correction areas.

  As mentioned above, although the form which concerns on implementation of this invention was demonstrated, the said content does not limit the content of invention.

DESCRIPTION OF SYMBOLS 10 Touch panel contact part 20 Touch panel controller 30 Control part 31 Touch panel driver 32 Memory | storage part 33 Operating system 34 Application program 140 Partial correction | amendment area | region 140a Boundary 150a Line 150b Line 151a Line (Line obtained by the averaging process)
151b line (line obtained by averaging process)

Claims (8)

In a correction method for a touch panel device, comprising: a touch panel contact unit to which a contact point is input; a control unit that controls the touch panel contact unit; and a storage unit provided in the control unit.
A step of partial correction area to be part partial compensation is Ru is set by the contact point on the touch panel contact portion,
In the partial correction area, calculating partial correction data based on a difference between a contact position at the touch panel contact portion and a detection position detected at the touch panel contact portion when the touch position is touched;
Storing the partial correction data in a storage unit;
A correction method for a touch panel device, comprising:   2. The correction method for a touch panel device according to claim 1, further comprising a step of correcting a position coordinate of a contact point in contact with the touch panel device based on the partial correction data stored in the storage unit. . Calculating overall correction data based on a difference between a contact position in the touch panel contact portion and a detection position detected in the touch panel contact portion when contacting the contact position in the entire touch panel contact portion;
Storing the overall correction data in a storage unit;
The correction method for a touch panel device according to claim 1, wherein the correction method is provided. 4. The correction method for a touch panel device according to claim 3 , further comprising a step of correcting a position coordinate of a contact point in contact with the touch panel device based on the overall correction data stored in the storage unit. . When the contact point in the touch panel contact portion moves from the partial correction area to the outside of the partial correction area, the position coordinates of the contact point moved out of the partial correction area are based on the partial correction data. 5. The correction method for a touch panel device according to claim 4, wherein the correction is performed based on the corrected position coordinates and the position coordinates corrected based on the overall correction data. When the contact point on the touch panel contact portion moves from outside the partial correction area into the partial correction area, the position coordinates of the contact point moved into the partial correction area are corrected based on the partial correction data. 6. The correction method for a touch panel device according to claim 4, wherein the correction is performed based on the corrected position coordinates and the corrected position coordinates based on the overall correction data.   The touch panel device correction method according to claim 1, wherein there are a plurality of partial correction regions. A touch panel contact portion to which a contact point is input;
A control unit for controlling the touch panel contact unit;
A storage unit provided in the control unit;
In the storage unit,
Overall correction data obtained based on the difference between the contact position in the touch panel contact portion and the detection position detected in the touch panel contact portion when contacting the contact position in the entire touch panel contact portion;
In a partial correction region for performing partial correction set by a contact point on the touch panel contact part , a contact position in the touch panel contact part and a detection position detected in the touch panel contact part when contacting the contact position Partial correction data obtained based on the difference,
A touch panel device characterized in that is stored.

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