JP2013131132A - Touch panel display - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the following problems caused by an increased object range to be detected upon an increase in size of a touch panel display: an increase in points to be detected because of an inevitable increase in the number of detection lines in attempting to maintain detection accuracy while increasing the size of a screen, which causes a reduction in detection response speed; and an increase in costs because of the need of many scan devices for detection if detection is parallelized to prevent the reduction in the detection response speed.SOLUTION: A touch panel display is provided, which can perform processing for making only one part on a screen a detection object, increasing detection accuracy of only the circumference of a touched region, or the like.

Description

  The present invention relates to a technique for improving the operation efficiency of a touch panel display.

  A touch panel display is often used as a device that can easily operate a screen. On the other hand, as a recent display device has a larger screen, a touch panel display has been enlarged accordingly. However, when the touch panel display is enlarged, the target range to be detected is increased, which causes the following problems. While the size of the screen increases, the number of detection lines inevitably increases and the number of points to be detected increases as the detection accuracy is maintained. Then, the problem that a detection response speed falls arises. Furthermore, if detection is parallelized in order to improve this, a problem arises in that many scanning devices for detection are required, leading to an increase in cost. Therefore, Patent Document 1 describes a touch panel capable of performing detection by thinning out scan lines when priority is given to speed in order to improve the detection response speed.

JP 2002-215314 A

  However, if the scan line is simply thinned out, it is possible to secure the detection response speed, but the distance between the scan line and the detection line increases in the entire display, and the detection accuracy is lowered and details can be detected at the same time. Problems such as disappearance occur.

  In order to solve the above problems, first, the present invention provides the following touch panel display. In the first aspect of the present invention, the touch panel display is capable of selectively setting which detection line is used to scan the scan line and the detection line according to the setting information.

  Specifically, in a touch panel display that senses touching using detection lines arranged in a grid, a scanning unit that performs scanning of the detection lines, and scanning in the scanning unit is applied to all detection lines. Scanning plan setting unit that sets the scanning plan according to the display area of the display, such as whether to execute for the detection line, whether to thin out a part of the detection line, or not, and obtain setting information for the setting A setting information acquisition unit that performs a touch panel display.

  Second, based on the first touch panel display, a change in detection accuracy is determined according to the setting information, in which area the display accuracy is increased, decreased, or not detected in the display area of the display. It is a touch panel display that can be used.

  Specifically, the setting information acquisition unit is a detection accuracy mode assigned according to the display area of the display as the setting information, and performs detection with a detection accuracy mode that does not require detection and a relatively high detection accuracy. 2. A detection accuracy mode acquisition means for acquiring a detection accuracy mode including at least two of the detection accuracy modes and a detection accuracy mode of performing detection with a relatively low detection accuracy according to a display area. It is a touch panel display of description.

  Third, based on the first and second touch panel displays, in the display area of the display, it is determined in accordance with the setting information whether the detection speed is relatively high or low. It is a possible touch panel display.

  Specifically, the setting information acquisition unit is a detection speed mode assigned as setting information according to the display area of the display, and a detection speed mode in which detection is performed at a relatively fast detection speed, a relatively slow detection speed The touch panel display according to claim 1, further comprising a detection speed mode acquisition unit that acquires a detection speed mode including detection speed mode according to a display area.

  Fourthly, based on the first to third touch panel displays, it is determined whether the acquired setting information exceeds its own detection capability, and if it exceeds, at least a part of the display display area. This is a touch panel display that can be adjusted to match the detection accuracy and / or detection speed required by the setting information.

  Specifically, the scanning plan setting unit determines whether the detection accuracy mode and / or the detection speed mode required by the setting information acquired by the setting information acquisition unit is a request that exceeds its own detection capability. And the detection accuracy mode or / and detection required by the setting information in at least a part of the display area of the display if the determination result by the determination means is a determination result that exceeds the detection capability of the determination means. 4. The touch panel display according to claim 1, further comprising specification down means for setting a scanning plan at a detection accuracy or / and a detection speed lower than a speed aspect. 5.

  Fifth, based on the first to fourth touch panel displays, a touch panel that can acquire a touched area on the display and improve detection accuracy or / and detection speed around the acquired area. It is a display.

  Specifically, the setting information acquisition unit includes a touch area acquisition unit that acquires a touch area that includes a display area that is detected to be touched, and a detection accuracy mode of a peripheral area that includes at least the acquired touch area, or And / or a spec-up change information acquisition means for acquiring spec-up change information which is setting information for enabling the detection speed mode to be changed to relatively high accuracy or / and relatively high speed. 4. The touch panel display according to any one of 4 above.

  The sixth is a touch panel display in which detection accuracy and detection speed can be set for each scan frame based on the first to fifth touch panel displays.

  Specifically, the scanning plan setting unit includes a scheduled scanning plan setting unit that sets a scheduled scanning plan that is a scanning plan that changes over time. is there.

  According to the first aspect of the present invention configured as described above, it is possible to select a scan line for scanning according to setting information and a detection line for detection. Even on a large-screen touch panel display, operation is possible without impairing convenience.

  In addition, according to the second aspect of the present invention, the detection accuracy can be changed according to the display area of the display. Then, in the display area, there are settings such as improving the detection accuracy when the icons are dense, reducing the detection accuracy when there are relatively large icons, and not scanning or detecting where there are no icons. It becomes possible.

  According to the third aspect of the present invention, the detection speed can be freely changed according to the display area of the display. Then, it is possible to relatively increase the detection speed in a screen area where there are relatively few objects to be touched. In addition, in a screen area where there are relatively many targets to be touched, it is possible to relatively lower the detection speed and prioritize accuracy.

  According to the fourth aspect of the present invention, it is possible to adjust the detection speed and the detection accuracy so as not to exceed its own detection capability. Thereby, a more adaptive operation is possible.

  According to the fifth aspect of the present invention, the detection accuracy and / or the detection speed can be adjusted according to the user's touch history. For example, the detection accuracy can be improved around the point where the user's touch is concentrated.

  According to the sixth aspect of the present invention, the detection accuracy and / or the detection speed can be changed for each frame. This makes it possible to change the setting for thinning out the lines to be scanned and detected and the setting that can be detected with relatively high accuracy for each frame, so that the setting can be made so that the detection speed can be secured while improving the accuracy. Is possible.

The figure for demonstrating the outline | summary of the process by the touchscreen display of Example 1. FIG. The figure showing an example of the functional block of the touchscreen display of Example 1. The flowchart showing an example of the flow of the process in the touch panel display of Example 1. Schematic showing an example of the hardware constitutions in the touch panel display of Example 1. FIG. The figure for demonstrating the outline | summary of the process by the touchscreen display of Example 2. FIG. The figure showing an example of the functional block of the touchscreen display of Example 2. The figure for demonstrating an example of the process by the touchscreen display of Example 1. FIG. The flowchart showing an example of the flow of a process in the touchscreen display of Example 2. Schematic showing an example of the hardware constitutions in the touch panel display of Example 2. FIG. The figure showing an example of the functional block of the touchscreen display of Example 3. The flowchart showing an example of the flow of a process in the touchscreen display of Example 3. Schematic showing an example of the hardware constitutions in the touch panel display of Example 3. The figure showing an example of the functional block of the touchscreen display of Example 4. The flowchart showing an example of the flow of a process in the touchscreen display of Example 4. Schematic showing an example of the hardware constitutions in the touch panel display of Example 4. FIG. The figure for demonstrating the outline | summary of the process by the touchscreen display of Example 5. FIG. The figure showing an example of the functional block of the touchscreen display of Example 5. A flowchart showing an example of a flow of processing in a touch panel display of Example 5. Schematic showing an example of the hardware constitutions in the touch panel display of Example 5. The figure for demonstrating the outline | summary of the process by the touchscreen display of Example 6. FIG. The figure showing an example of the functional block of the touchscreen display of Example 6. The flowchart showing an example of the flow of a process in the touchscreen display of Example 6. Schematic showing an example of the hardware constitutions in the touch panel display of Example 6. FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to these embodiments, and can be implemented in various modes without departing from the spirit of the present invention. In the first embodiment, claim 1 will be mainly described. The second embodiment will mainly describe Claim 2. In the third embodiment, claim 3 will be mainly described. The fourth embodiment will mainly describe Claim 4. The fifth embodiment will mainly describe Claim 5. The sixth embodiment will mainly describe Claim 6.

Example 1
<Overview>
FIG. 1 is a conceptual diagram for explaining an example of the operation of the touch panel display of the present embodiment. As shown in FIG. 1A, a horizontal scanning line and a vertical detection line are output from the horizontal scanning unit and the vertical detection unit, respectively. For touch detection, scan signals are sequentially output from the horizontal scanning unit, and the vertical detection lines K1 to Kn are scanned while the scan signal is output on one horizontal scanning line to acquire position information of one point in the screen. In this example, the setting is such that five scan signals are detected from the top of the screen and the vertical detection unit is detected from five from the left side of the screen. That is, it is set to scan in the upper left area of the screen. FIG. 1B shows an example of setting information. FIG. 1B shows horizontal scanning line setting information, and FIG. 1B shows vertical detection line setting information. The value of the line to be scanned and detected is set to 1, and the value of the line not to be scanned is set to 0. As described above, the touch panel display according to the present embodiment can perform processing such as scanning a part of the display area by setting the horizontal scanning unit that performs scanning and the vertical detection unit that performs detection.

<Functional configuration>
FIG. 2 is a diagram illustrating an example of functional blocks in the touch panel display of the present embodiment. As shown in this figure, the “touch panel display” (0200) of this embodiment includes a “scanning unit” (0201), a “scanning plan setting unit” (0202), and a “setting information acquisition unit” (0203). Have.

  The “scanning unit” (0201) has a function of performing scanning of the detection line. Specifically, in FIG. 1, a horizontal scanning unit, a vertical detection unit, a horizontal scanning line, and a vertical detection line are included. “Detection line” refers to a horizontal scanning line that sends a scan signal from the horizontal scanning unit, and a vertical line that is orthogonal to the horizontal scanning line and that receives a scan current at the vertical detection unit and is connected to a device such as an A / D converter. Refers to the detection line. Scanning refers to scanning all or part of the vertical detection lines while a scan signal is sent to one horizontal scanning line, and repeating this all or part of the number of horizontal scanning lines. By scanning, the coordinates on the touched screen area are clarified, and this information can be passed to the OS running on the CPU.

  The “scanning plan setting unit” (0202) displays a scanning plan such as whether scanning in the scanning unit is performed for all detection lines, a part of the detection lines is thinned, or not. It has a function to set according to the display area. Specifically, this is a function for acquiring setting information from the setting information acquiring unit and causing the scanning unit to execute the setting. For example, there is a function of generating scan timing from setting information and sending it to the scanning unit.

The “setting information acquisition unit” (0202) has a function of acquiring setting information for setting a scanning plan. An example of the setting information is vector information as shown in FIG. 1 (B) -1 and FIG. 1 (B) -2. This information is retained and output to the scanning plan setting unit.
<Process flow>
FIG. 3 is a flowchart showing an example of a process flow in the touch panel display of the present embodiment. First, setting information for setting a scanning plan is acquired (step S0301). Next, a scanning plan is set according to the display area of the display (step S0302). After the setting, scanning of the detection line is performed (step S0303).

<Hardware configuration>
FIG. 4 is a schematic diagram showing an example of the configuration of the touch panel display when the above functional components are realized as hardware. The operation of each hardware component in the processing of the present invention will be described using this figure. As shown in this figure, the touch panel display of the present embodiment includes a “CPU (central processing unit)” (0401), a “volatile memory” (0402), and a “nonvolatile memory” (0403) that perform various arithmetic processes. ”,“ Touch panel display device ”(0404),“ D / A converter ”(0405), and“ A / D converter ”(0406). These are connected to each other through a data communication path such as a “system bus” (0407) to perform transmission / reception and processing of information.

  The “volatile memory” (0402) is a work area that is also a work area of the program at the same time it is read from the “nonvolatile memory” (0403) in order to cause the “CPU” (0401) to execute a program for performing various processes. I will provide a.

  Here, when the apparatus is activated, A: setting information is processed by the CPU from the volatile memory (0402) and sent to the touch panel display apparatus via the D / A converter. A: There may be a plurality of setting information, and the setting information to be applied may be changed by selection. The touch panel display device (0404) performs scanning and detection according to the setting. The detection result is sent to the volatile memory (0402) via the A / D converter (0406), B: is held as the detection result, and is passed to the OS or the like as necessary.

<Brief description of effect>
As described above, since the position of the detection line detected by the setting information can be freely changed by the touch panel display of the present embodiment, it is possible to set only a part of the screen as a touch area. It is effective in the touch panel display of the screen.

<< Example 2 >>
<Overview>
FIG. 5 is a conceptual diagram for explaining an application example of the touch panel display of the present embodiment. As shown in FIG. 5A, when icons are arranged, the upper left and lower right portions in the display area of the display are areas to be touched. Therefore, the upper left and lower right parts of the screen are recognized with normal accuracy, and the ellipse part in the center of the screen does not need to detect touch, or with very coarse accuracy to detect gesture input etc. It only has to be recognized. If a large icon is arranged as shown in FIG. 5B, the entire screen may be recognized with coarse accuracy.

  As described above, according to the setting information, the touch panel display according to the present embodiment can determine whether the detection accuracy is increased, decreased, or not detected according to the setting information.

<Functional configuration>
FIG. 6 is a diagram illustrating an example of functional blocks in the touch panel display of the present embodiment. As shown in this figure, the “touch panel display” (0600) of this embodiment includes a “scanning unit” (0601), a “scanning plan setting unit” (0602), and a “setting information acquisition unit” (0603). Have. Since these structural requirements have already been described in the above embodiment, the description thereof will be omitted. The feature point of the touch panel display of the present embodiment is that the “setting information acquisition unit” (0603) newly has “detection accuracy mode acquisition means” (0604).

  The “detection accuracy mode acquisition means” (0604) is a detection accuracy mode assigned as setting information according to the display area of the display, and detects a detection accuracy mode that does not require detection, detection with relatively high detection accuracy. It has a function to acquire a detection accuracy mode including at least two of the detection accuracy mode of performing detection and the detection accuracy mode of performing detection with relatively low detection accuracy according to the display area. Referring to FIG. 7A, a detection accuracy mode of detecting a relatively high detection accuracy is necessary in the upper left and lower right portions of the screen, and in the area indicated by the dotted line in the center of the screen, detection of gesture input, etc. It is possible to set a detection mode that requires detection with a relatively low detection accuracy, and that the upper right and lower left portions do not require detection.

FIG. 7B shows an example of specifying the detection accuracy mode. This matrix designates 1: relatively high detection accuracy, 2: relatively low detection accuracy, and 0: no detection necessary in the display area of the screen of FIG. By outputting these to the scanning plan setting unit, a scanning plan is generated and scanning is performed.
<Process flow>
FIG. 8 is a flowchart illustrating an example of a process flow in the touch panel display of the present embodiment. First, the detection accuracy mode is acquired according to the display area (step S0801). Next, a scanning plan is set according to the display area of the display (step S0802). After the setting, scanning of the detection line is performed (step S0803).

<Hardware configuration>
FIG. 9 is a schematic diagram illustrating an example of a configuration of the touch panel display when the above functional components are realized as hardware. The operation of each hardware component in the processing of the present invention will be described using this figure. As shown in this figure, the touch panel display of the present embodiment includes a “CPU (central processing unit)” (0901), a “volatile memory” (0902), and a “nonvolatile memory” (0903) that perform various arithmetic processes. ”,“ Touch panel display device ”(0904),“ D / A converter ”(0905), and“ A / D converter ”(0906). These are connected to each other via a data communication path such as a “system bus” (0907) to transmit / receive information and process information.

  The “volatile memory” (0902) is a work area that is also a work area of the program at the same time it is read from the “nonvolatile memory” (0903) in order to cause the “CPU” (0901) to execute a program for performing various processes. I will provide a.

  Here, when the apparatus is activated, A: detection accuracy mode information is processed by the CPU from the volatile memory (0902) and sent to the touch panel display apparatus via the D / A converter. The touch panel display device (0904) performs scanning and detection according to the setting. The detection result is sent to the volatile memory (0902) via the A / D converter (0906), B: is held as the detection result, and is passed to the OS or the like as necessary.

<Brief description of effect>
As described above, according to the setting information, the touch panel display according to the present embodiment can determine whether the detection accuracy is increased, decreased, or not detected according to the setting information. For this reason, it is possible to limit the detection to a specific area, which has the effect of improving the overall detection response speed. In addition, since the number of scan objects is reduced, power consumption can be reduced.

Example 3
<Overview>
The touch panel display of the present embodiment adopts a detection speed mode assigned according to the display area of the display as setting information, and a detection speed mode in which detection is performed at a relatively fast detection speed, detection at a relatively slow detection speed. It is possible to acquire a detection speed mode including the detection speed mode of performing according to the display area.

<Functional configuration>
FIG. 10 is a diagram illustrating an example of functional blocks in the touch panel display of the present embodiment. As shown in this figure, the “touch panel display” (1000) of this embodiment includes a “scanning unit” (1001), a “scanning plan setting unit” (1002), a “setting information acquisition unit” (1003), Have. Further, the “setting information acquisition unit” (1003) may include “detection accuracy mode acquisition means” (1004). Since these structural requirements have already been described in the above embodiment, the description thereof will be omitted. The feature point of the touch panel display of the present embodiment is that the “setting information acquisition unit” (1003) newly has “detected speed mode acquisition means” (1005).

  "Detection speed mode acquisition means" (1005) is a detection speed mode assigned according to the display area of the display as setting information, and is a detection speed mode in which detection is performed at a relatively fast detection speed, and relatively slow detection. It has a function of acquiring a detection speed mode including a detection speed mode of detecting at a speed according to the display area. Specifically, on the screen as shown in FIG. 7A, the detection speed mode is such that icons are densely located, and the lower right part where it is necessary to quickly detect fine movement is detected at a relatively high detection speed. Is required. The touch panel display of the present embodiment can perform scanning processing by designating such a detection speed mode for each screen area. The detection speed mode can be specified by a matrix as shown in FIG. 7B. 1: Detection mode in which detection is performed at a relatively high detection speed, 2: Detection is performed at a relatively low detection speed. It can be specified as a detection mode.

<Process flow>
FIG. 11 is a flowchart illustrating an example of a process flow in the touch panel display of the present embodiment. First, the detection speed mode is acquired according to the display area (step S1101). Next, a scanning plan is set according to the display area of the display (step S1102). After setting, scanning of the detection line is performed (step S1103).

<Hardware configuration>
FIG. 12 is a schematic diagram illustrating an example of a configuration of the touch panel display when the above functional components are realized as hardware. The operation of each hardware component in the processing of the present invention will be described using this figure. As shown in this figure, the touch panel display of the present embodiment includes a “CPU (central processing unit)” (1201), a “volatile memory” (1202), and a “nonvolatile memory” (1203) that perform various arithmetic processes. ”,“ Touch panel display device ”(1204),“ D / A converter ”(1205), and“ A / D converter ”(1206). These are connected to each other via a data communication path such as a “system bus” (1207) to transmit / receive information and process information.

  In addition, the “volatile memory” (1202) is a work area that is a work area of the program at the same time that it is read from the “nonvolatile memory” (1203) in order to cause the “CPU” (1201) to execute a program for performing various processes. I will provide a.

  Here, when the apparatus is activated, A: detected speed mode information is processed by the CPU from the volatile memory (1202) and sent to the touch panel display apparatus via the D / A converter. The touch panel display device (1204) performs scanning and detection according to the setting. The detection result is sent to the volatile memory (1202) via the A / D converter (1206), B: is held as the detection result, and is passed to the OS or the like as necessary.

<Brief description of effect>
As described above, in the touch panel display according to the present embodiment, the detection accuracy can be changed according to the setting information to increase or decrease the detection speed according to the area on the screen. For this reason, it is possible to limit the detection to a specific area, which has the effect of improving the overall detection response speed. In addition, since the number of scan objects is reduced, power consumption can be reduced.

Example 4
<Overview>
The touch panel display of the present embodiment can be adjusted when the detection accuracy mode and / or the detection speed mode is a request that exceeds its own detection capability. As a result, detection can be performed with maximum performance within a range that does not exceed the detection capability.

<Functional configuration>
FIG. 13 is a diagram illustrating an example of functional blocks in the touch panel display of the present embodiment. As shown in this figure, the “touch panel display” (1300) of this embodiment includes a “scanning unit” (1301), a “scanning plan setting unit” (1302), and a “setting information acquisition unit” (1303). Have. The “setting information acquisition unit” (1303) may include a “detection accuracy mode acquisition unit” (1304) and a “detection speed mode acquisition unit” (1305). Since these structural requirements have already been described in the above embodiment, the description thereof will be omitted. The feature point of the touch panel display of the present embodiment is that the “scanning plan setting unit” (1302) newly includes a “determination unit” (1306) and a “spec down unit” (1307).

  The “determination means” (1306) has a function of determining whether the detection accuracy mode and / or the detection speed mode required by the setting information acquired by the setting information acquisition unit is a request that exceeds its own detection capability. Specifically, the detection accuracy mode information and the detection speed mode information are acquired as input from the detection accuracy mode acquisition unit (1304) and the detection speed mode acquisition unit (1305). For example, the total number of detections required for detection for one frame is calculated from these pieces of information. It is determined by comparison whether this number of times exceeds the detection capability (line / frame) of one frame in the scanning unit. The determination result is output to the spec down means (1307).

  The “spec-down means” (1307) is requested by setting information in at least a part of the display area of the display when the judgment result by the judgment means is a judgment result that exceeds the detection capability of the judgment means. It has a function of setting a scanning plan with a detection accuracy or / and a detection speed lower than the detection accuracy aspect or / and the detection speed aspect. Specifically, the result of comparison is obtained from the judging means (1306), and the number of detections required by the detection accuracy mode or / and the detection speed mode exceeds the detection capability of one frame of the scanning unit. The control is performed so as to reduce the requirement of the detection accuracy aspect or the detection speed aspect. For example, weighting is performed on the detection accuracy mode and / or the detection speed mode, and control is performed to reduce the request within a certain range. Eventually, control is performed until the number of detections of one frame required by both falls below the capability of the scanning unit.

<Process flow>
FIG. 14 is a flowchart illustrating an example of a process flow in the touch panel display of the present embodiment. First, setting information for setting a scanning plan is acquired (step S1401). Next, it is determined whether the detection accuracy mode and / or the detection speed mode required by the setting information is a request that exceeds its own detection capability (step S1402). If the request exceeds the setting, the scanning plan is set with a detection accuracy or / and a detection speed lower than the detection accuracy mode or / and the detection speed mode required by the setting information in at least a part of the display area of the display. Thereafter, scanning of the detection line is performed (step S1403). If the request is not exceeded, scanning of the detection line is performed (step S1404).

<Hardware configuration>
FIG. 15 is a schematic diagram illustrating an example of a configuration of the touch panel display when the above functional components are realized as hardware. The operation of each hardware component in the processing of the present invention will be described using this figure. As shown in this figure, the touch panel display of the present embodiment includes a “CPU (central processing unit)” (1501), a “volatile memory” (1502), and a “nonvolatile memory” (1503) that perform various arithmetic processes. ”,“ Touch panel display device ”(1504),“ D / A converter ”(1505), and“ A / D converter ”(1506). Then, they are connected to each other via a data communication path such as a “system bus” (1507) to transmit / receive information and process information.

  In addition, the “volatile memory” (1502) is a work area that is a work area of the program at the same time that the program for performing various processes is read from the “nonvolatile memory” (1503) in order to cause the CPU (1501) to execute the program. I will provide a.

  Here, when the apparatus is activated, the CPU processes A: detection accuracy mode information and B: detection speed mode information from the volatile memory 1502. The CPU calculates the total number of detections Ca and Cb required for detection for one frame from the values A and B, respectively, and further compares this with the processing capability P (line / frame) of the D / A converter. When Ca and Cb exceed the processing capability P, the Ca or Cb value is adjusted so as to decrease by weighting. Thereby, when the values of Ca and Cb are less than P, these pieces of detection mode information are sent to the touch panel display device via the D / A converter. The touch panel display device (1504) performs scanning and detection according to the determined detection mode information. The detection result is sent to the volatile memory (1502) via the A / D converter (1506), held as D: detection result, and passed to the OS or the like as necessary.

<Brief description of effect>
As described above, the touch panel display according to the present embodiment can determine whether the detection accuracy mode and / or the detection speed mode is a request that exceeds its own detection capability. It is possible to adjust the aspect or / and the detection speed aspect. This makes it possible to make maximum use of the detection capability.

Example 5
<Overview>
FIG. 16 is a conceptual diagram for explaining an application example of the touch panel display of the present embodiment. As shown in FIG. 16, the touch panel display of the present embodiment recognizes the touched position, and can perform processing for improving the recognition accuracy or / and the recognition speed around the touched position as shown by the dotted line portion. is there. As a result, the recognition accuracy or / and recognition speed of the area other than the vicinity of the touched position remains relatively low, thereby improving the recognition accuracy or / and recognition speed around the touch position and ensuring convenience. It is possible.

<Functional configuration>
FIG. 17 is a diagram illustrating an example of functional blocks in the touch panel display of the present embodiment. As shown in this figure, the “touch panel display” (1700) of this embodiment includes a “scanning unit” (1701), a “scanning plan setting unit” (1702), and a “setting information acquisition unit” (1703). Have. The “setting information acquisition unit” (1703) may include a “detection accuracy mode acquisition unit” (1704) and a “detection speed mode acquisition unit” (1705). Further, the “scanning plan setting unit” (1702) may include a “determination unit” (1706) and a “spec-down unit” (1707). Since these structural requirements have already been described in the above embodiment, the description thereof will be omitted. The feature point of the touch panel display of the present embodiment is that the “setting information acquisition unit” (1703) newly has “touch area acquisition means” (1708) and “spec-up change information acquisition means” (1709). It is.

  The “touch area acquisition unit” (1708) has a function of acquiring a touch area including a display area where it is detected that the touch has been made. Specifically, the coordinates of the touched area on the touch panel display are acquired, information indicating the peripheral area of the coordinates is acquired, and output to the spec-up change information acquiring unit.

  “Spec-up change information acquisition means” (1709) can change the detection accuracy mode or / and the detection speed mode of the peripheral area including at least the acquired touch area to relatively high accuracy and / or relatively high speed. A function of acquiring spec-up change information, which is setting information for the purpose of Specifically, information indicating the periphery of the touched region is acquired from the touch region acquisition unit, and the detection accuracy or / and detection speed of the region is improved with respect to the detection accuracy mode acquisition unit and the detection speed mode acquisition unit. The setting information is output as follows.

<Process flow>
FIG. 18 is a flowchart illustrating an example of a process flow in the touch panel display of the present embodiment. First, a touch area including a display area where it is detected that the touch has been detected is acquired (step S1801). Next, spec-up change information which is setting information for enabling the detection accuracy mode or / and the detection speed mode of the peripheral region including at least the acquired touch region to be changed to a relatively high accuracy and / or a relatively high speed. Is acquired (step S1802). Next, setting information for setting a scanning plan is acquired (step S1803). Thereafter, a scanning plan is set according to the display area of the display (step S1804). Next, scanning of the detection line is performed (step S1805).

<Hardware configuration>
FIG. 19 is a schematic diagram illustrating an example of a configuration of a touch panel display when the above functional components are realized as hardware. The operation of each hardware component in the processing of the present invention will be described using this figure. As shown in this figure, the touch panel display of the present embodiment has a “CPU (central processing unit)” (1901), a “volatile memory” (1902), and a “nonvolatile memory” (1903) for performing various arithmetic processes. ”,“ Touch panel display device ”(1904),“ D / A converter ”(1905), and“ A / D converter ”(1906). These are connected to each other through a data communication path such as a “system bus” (1907), and perform transmission / reception and processing of information.

  The “volatile memory” (1902) is a work area that is a work area of the program at the same time it is read from the “nonvolatile memory” (1903) in order to cause the “CPU” (1901) to execute a program for performing various processes. I will provide a.

  Here, when the device is activated and a touch event is detected on the touch panel display, the coordinate information X and Y of the touched position is sent to the volatile memory (1902), and the CPU (1901) surrounds the coordinates. Area coordinate information is generated. This information is used as a bias for generating A: detection accuracy mode information or / and B: detection speed mode information generated by the CPU (1901). The biased A and B are sent to the touch panel display device (1904) via the D / A converter. The touch panel display device (1904) performs scanning and detection according to the setting. The detection result is sent to the volatile memory (1902) via the A / D converter (1906), held as C: detection result, and passed to the OS or the like as necessary.

<Brief description of effect>
As described above, the touch panel display according to the present embodiment can perform processing for improving the recognition accuracy or / and the recognition speed around the touched position. As a result, the recognition accuracy or / and recognition speed of the area other than the vicinity of the touched position remains relatively low, thereby improving the recognition accuracy or / and recognition speed around the touch position and ensuring convenience. It is possible.

Example 6
<Overview>
FIG. 20 is a conceptual diagram for explaining an application example of the touch panel display of the present embodiment. FIG. 20A and FIG. 20B show the distribution of detection speed and / or detection accuracy for each frame. The frame in FIG. 20A improves the detection speed and / or detection accuracy only around the icon, whereas in FIG. 20B, the detection speed and / or detection accuracy is distributed so as to cover the entire screen. ing. In FIG. 20A, since it is a part of the screen, scanning processing can be performed at a relatively high speed, whereas in FIG. 20B, scanning processing can be performed on the entire screen. In this way, by changing the distribution of detection speed and / or detection accuracy for each frame, scanning processing can be performed at a higher speed or more finely than when scanning is always performed on the entire screen.

<Functional configuration>
FIG. 21 is a diagram illustrating an example of functional blocks in the touch panel display of the present embodiment. As shown in this figure, the “touch panel display” (2100) of this embodiment includes a “scanning unit” (2101), a “scanning plan setting unit” (2102), and a “setting information acquisition unit” (2103). Have. The “setting information acquisition unit” (2103) includes a “detection accuracy mode acquisition unit” (2104), a “detection speed mode acquisition unit” (2105), a “touch area acquisition unit” (2108), You may have a change information acquisition means "(2109). In addition, the “scanning plan setting unit” (2102) may include a “determination unit” (2106) and a “spec down unit” (2107). Since these structural requirements have already been described in the above embodiment, the description thereof will be omitted. The feature point of the touch panel display of the present embodiment is that the “scanning plan setting unit” (2102) newly has “scheduled scanning plan setting means” (2110).

The “scheduled scanning plan setting means” (2110) has a function of setting a scheduled scanning plan that is a scanning plan that changes over time. Specifically, a plurality of detection accuracy modes and / or detection speed modes are acquired from the detection accuracy mode acquisition unit (2104) and the detection speed mode acquisition unit (2105), a scanning plan is set for each frame, and the scanning unit To output the setting. FIG. 21 shows a scanning plan consisting of two frames, but it may be set to three frames or more.

<Process flow>
FIG. 22 is a flowchart illustrating an example of a process flow in the touch panel display of the present embodiment. First, setting information for setting a scanning plan is acquired (step S2201). Thereafter, a scheduled scanning plan that is a scanning plan that changes with time is set (step S2202). Next, scanning of the detection line is performed (step S2203).

<Hardware configuration>
FIG. 23 is a schematic diagram illustrating an example of a configuration of a touch panel display when the above functional components are realized as hardware. The operation of each hardware component in the processing of the present invention will be described using this figure. As shown in this figure, the touch panel display of the present embodiment includes a “CPU (central processing unit)” (2301), a “volatile memory” (2302), and a “nonvolatile memory” (2303) that perform various arithmetic processes. ”,“ Touch panel display device ”(2304),“ D / A converter ”(2305), and“ A / D converter ”(2306). These are connected to each other through a data communication path such as a “system bus” (2307) to transmit / receive information and process information.

  In addition, the “volatile memory” (2302) is a work area that is a work area of the program at the same time that it is read from the “nonvolatile memory” (2303) in order to cause the “CPU” (2301) to execute a program for performing various processes. I will provide a.

  Here, when the apparatus is activated, A1: setting information 1 and A2 setting information 2 are processed by the CPU from the volatile memory (2302), and B: a scheduled scanning plan is generated. Based on this scheduled scanning plan, the scan settings are sent to the touch panel display device via the D / A converter. The touch panel display device (2304) performs scanning and detection according to the setting. The detection result is sent to the volatile memory (2302) via the A / D converter (2306), held as C: detection result, and passed to the OS or the like as necessary.

<Brief description of effect>
In this way, by acquiring a plurality of setting information and scheduling it for each frame, it is possible to perform high-speed and fine detection processing.

0200 Touch panel display 0201 Scanning unit 0202 Scanning plan setting unit 0203 Setting information acquisition unit

Claims (6)

In a touch panel display that senses touching using detection lines arranged in a grid pattern,
A scanning unit for scanning the detection line;
Scanning in the scanning section
Do this for all detection lines,
Do this by thinning out part of the detection line,
A scanning plan setting unit that sets a scanning plan according to the display area of the display;
A setting information acquisition unit for acquiring setting information for the setting;
Touch panel display having   The setting information acquisition unit is a detection accuracy mode assigned according to the display area of the display as setting information, and a detection accuracy mode that does not require detection, a detection accuracy mode that performs detection with relatively high detection accuracy, The touch panel display according to claim 1, further comprising a detection accuracy mode acquisition unit that acquires a detection accuracy mode including at least two of detection accuracy modes of performing detection with relatively low detection accuracy according to a display area.   The setting information acquisition unit is a detection speed mode assigned as setting information according to the display area of the display, and detects at a relatively fast detection speed, and detects at a relatively slow detection speed. The touch panel display according to claim 1, further comprising a detection speed mode acquisition unit that acquires a detection speed mode including a detection speed mode according to a display area. Scanning plan setting section
A determination means for determining whether the detection accuracy mode or / and the detection speed mode required by the setting information acquired by the setting information acquisition unit is a request that exceeds its own detection capability;
Detection accuracy mode and / or detection speed mode required by setting information in at least a part of the display area of the display when the determination result by the determination unit is a determination result that exceeds the detection capability of the determination unit Specification down means for setting a scanning plan with detection accuracy or / and detection speed lower than
The touch panel display according to claim 1, comprising: The setting information acquisition unit
Touch area acquisition means for acquiring a touch area including an area of the display that is detected to be touched;
Acquire spec-up change information, which is setting information for enabling the detection accuracy mode or / and the detection speed mode of the peripheral area including at least the acquired touch area to be changed to relatively high accuracy and / or relatively high speed. Spec update information acquisition means to
The touch panel display according to claim 1, comprising:   The touch panel display according to claim 1, wherein the scanning plan setting unit includes scheduled scanning plan setting means for setting a scheduled scanning plan that is a scanning plan that changes over time.

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