WO2015080391A1 - 터치입력위치 오류의 보정방법 및 이를 위한 장치 - Google Patents
터치입력위치 오류의 보정방법 및 이를 위한 장치 Download PDFInfo
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- WO2015080391A1 WO2015080391A1 PCT/KR2014/010566 KR2014010566W WO2015080391A1 WO 2015080391 A1 WO2015080391 A1 WO 2015080391A1 KR 2014010566 W KR2014010566 W KR 2014010566W WO 2015080391 A1 WO2015080391 A1 WO 2015080391A1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
- G06F3/04186—Touch location disambiguation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
Definitions
- the present invention relates to a technique for correcting an error of a touch input position output from a capacitive touch input device.
- the touch input device refers to an input device that detects a touch position of a finger or the like on the touch panel and provides information on the detected touch position as input information.
- the touch panel of the touch input device may be superimposed on the display screen or separately provided from the display screen.
- the contact information and contact position information obtained from the device may be controlled by the operation control of the computer system in which the touch input device is mounted. It can be used for screen manipulation.
- touch input devices There are many types of touch input devices, and typically there are resistive methods and capacitive methods. The capacitive type is largely divided into self-capacitance and mutual storage.
- the intercapacitive type has a driving electrode and a sensing electrode made of a transparent conductive material, and a capacitance may be formed between the two electrodes.
- the extending direction of the driving electrode and the sensing electrode is different from each other, and in some embodiments, the two electrodes may be perpendicular to each other.
- Capacitance may be formed between the sensing electrode and the driving electrode, and in particular, most capacitance may be formed at the intersection of the two electrodes. Such an intersection region may be referred to herein as a generic term 'touch node' or 'node'. Since at least one driving electrode and at least one sensing electrode are provided in one touch panel, at least one touch node may exist.
- the capacitance formed in the touch node changes. Therefore, by measuring whether or not the value of the capacitance formed in the touch node can determine whether the finger touches the touch panel.
- a plurality of driving electrodes and sensing electrodes may be arranged in the touch panel, and these electrodes are connected to the driving circuit and the sensing circuit, respectively.
- the driving wires and the sensing wires are respectively connected to the driving electrode and the sensing electrode for the connection.
- Each driving wiring and sensing wiring may be designed to be electrically separated from each other.
- the driving electrode and the sensing electrode are formed on the same layer, various structures for insulating the driving wirings and the sensing wirings from each other may be presented.
- the driving wiring and the sensing wiring may be collectively referred to as wiring.
- FIG. 4A of Korean Patent Publication No. 10-2013-0109919 shows an example of the arrangement of the sensing electrode, the driving electrode, and the wirings.
- the area occupied by the wirings may be called a dead zone. .
- the density of the wirings disposed in the dead zone is different for each position of the dead zone, and the above-described linearity required for accurate detection of the touch input position described above is deteriorated due to the nonuniformity of the pattern.
- the present invention is to provide a technique for correcting the error of the touch input position caused by the amount of change in the capacitance of the touch node according to the touch position in the touch panel has a non-linearity.
- a method for determining a touch input position comprising: receiving a table including possible combinations of capacitance change values in a plurality of touch nodes and information mapped to the possible combinations; Acquiring a first combination relating to capacitance change values of the plurality of touch nodes generated by the touch input; searching for the first combination among the possible combinations, and first information mapped to the first combination And obtaining an input position of the touch input by using the obtained first information.
- the plurality of touch nodes includes one center touch node and one or more peripheral touch nodes adjacent to the center touch node, and the center touch node is a touch node having the largest change in capacitance among the plurality of touch nodes. Can be.
- the respective information mapped to each combination of the possible combinations may be coordinates of an input position of the touch input.
- the information mapped to each combination of the possible combinations may be capacitance change values corrected from capacitance change values constituting each combination.
- a touch input position determining method for determining a touch input position in a touch panel including a plurality of touch nodes.
- the method includes obtaining a first combination of capacitance change values at a central touch node and at least one peripheral touch node around the central touch node, the capacitance change at the central touch node and the peripheral touch node.
- a touch input positioning device including a sensing unit for obtaining a change value of capacitance in a plurality of touch nodes, and a processing unit for providing a touch input position using the acquisition result of the sensing unit Is provided.
- the processor is provided with a table including possible combinations that may be made of capacitance change values in the plurality of touch nodes and information mapped to the possible combinations, the plurality of touch inputs generated by the touch input. Obtaining a first combination with respect to capacitance change values at the touch node, retrieving the first combination of the possible combinations, obtaining first information mapped to the first combination, and obtaining The step of determining the input position of the touch input using the first information is performed.
- the present invention it is possible to provide a technique for correcting an error of a touch input position caused by a change amount of capacitance of a touch node according to a touch position in a touch panel having nonlinearity.
- FIG. 1 illustrates an example of arrangement of touch nodes arranged in a touch panel according to an exemplary embodiment of the present invention.
- 2A to 2C compare the touch input resolution of a touch panel used in an embodiment of the present invention with the display resolution of a display device coupled to the panel.
- 3A and 3B illustrate a case of selecting and inputting a position corresponding to the display pixel 55 among the display pixels shown in the display device coupled to the touch panel described with reference to FIG. 2.
- FIG. 4 illustrates the number of combinations of capacitance change amounts that can be output from one touch node set described above in an embodiment of the present invention.
- FIG. 5 is a modified example of FIG. 4.
- the modified example is modified to 1-bit resolution to reduce the searching time of the table.
- FIG. 6 shows an example of a table provided for another embodiment of the present invention.
- FIG. 7 is a modified example of FIG. 6.
- the modified example is modified to 1-bit resolution to reduce the searching time of the table.
- FIG. 8 is a flowchart illustrating a touch input positioning method according to an embodiment of the present invention.
- FIG. 9 is a modification of the flowchart of FIG. 8 and may be applied to a case in which a search time for searching the case in the table shown in FIG. 4 is fast enough to perform the processing of the subsequent process in real time.
- FIG. 10 is a flowchart illustrating a touch input position determining method according to another embodiment of the present invention.
- FIG. 11 is a modified example of the flowchart of FIG. 10 and may be applied to a case in which a search time for searching the case in the table shown in FIG. 6 is fast enough to perform the processing of the subsequent process in real time.
- FIG. 12 is a view for explaining the effect of the touch input position determination method according to an embodiment of the present invention.
- FIG. 13 illustrates an example of an electronic device using a conductor pattern according to an embodiment of the present invention.
- FIG. 1 illustrates an example of arrangement of touch nodes arranged in a touch panel according to an exemplary embodiment of the present invention.
- the touch nodes are arranged in a matrix of 6 * 6, but the arrangement is not limited thereto.
- the touch input position detecting method first, one center touch node having the largest change amount of capacitance among all the touch nodes is determined.
- the touch input position may be more precisely calculated by using variation amounts of capacitance of the center touch node and one or more peripheral touch nodes adjacent to the center touch node.
- the touch node 5 existing in the third row and the third row is selected as the center touch node, and the center touch node 5 and the other eight peripheral touch nodes 1 to 1 adjacent thereto are shown.
- the amount of change in capacitance in 4, 6-9 can be used.
- the one central touch node and the one or more peripheral touch nodes adjacent to the central touch node may be collectively referred to as 'a set of touch nodes' or 'touch node sets'.
- center touch node only one center touch node is selected from all the touch nodes, and one set of touch nodes is observed.
- two or more center touch nodes for example, a first center touch node and a second touch node, are observed.
- the center touch node may be selected to observe two or more sets of touch nodes.
- reference numerals 1 to 9 refer to the above-described center touch nodes 5 and peripheral touch nodes 1 to 4 and 6 to 9 of the touch panels according to an embodiment of the present invention, respectively. It shows the shape and size of the area and the relative position between these nine touch nodes.
- the nine touch nodes illustrated in FIG. 2A may be selected from a set of all touch nodes of FIG. 1.
- FIG. 2B illustrates display pixels 11 to 18 and 21 to a display area coupled to the touch node set shown in FIG. 1A among display devices coupled to the touch panel. 28, 31 to 38, ..., 81 to 88 (hereinafter 11 to 88), and the relative relationship between the display pixels.
- the touch nodes 1 to 9 may be disposed on the display device.
- the touch nodes are made of transparent electrodes which are not observed by the naked eye, a person may not see the touch node and may observe only the light output by the display device under the touch node.
- each display pixel of the display pixels 11 to 88 has a size of 1/4 of the one touch node, and the touch nodes are spaced apart by the width of the one display pixel. Assume that there is.
- the space formed between each touch node is also called a dead zone, and wirings connected to the sensing electrode and the driving electrodes forming each touch node may be disposed in this portion.
- the sensing electrode, the driving electrode, and the wirings may be disposed on the same layer or on different layers.
- 3A and 3B illustrate a case of selecting and inputting a position corresponding to the display pixel 55 among the display pixels shown in the display device coupled to the touch panel described with reference to FIG. 2.
- the tool When the user who observes the display device places a tool such as a finger near the display device to select the display pixel 55, the tool covers some or all of each of the touch nodes 1 to 9. I can cover it.
- the covering area 91 may be modeled as an ellipse or a circle.
- the magnitude of the capacitance change amount of each of the touch nodes 1 to 9 may be related to the area covering each touch node.
- the magnitude of the change in capacitance at each touch node may be linearly proportional to the area that the tool covers each touch node.
- the magnitude of the change in capacitance at each touch node is the largest in the touch node 5, and then the touch node 6, the touch node 8, the touch node 4, and the touch node ( 9), the touch node 2, the touch node 3, and the touch node 1 may be in the order.
- the touch point is determined by the simplest method, it may be determined that the touch input is made to the touch node 5 having the largest change in capacitance.
- the display pixels 44 and 45 corresponding to the touch node 5 are determined.
- 54 and 55 may be determined to be selected.
- Change amounts of capacitance values detected in the touch node set are used to increase the touch input resolution. To this end, Equation 1 may be used.
- the touch input position may be refined using capacitance variation amounts of the plurality of touch nodes as independent variables.
- the amount of capacitance change in each touch node should be linearly proportional to the area that the tool covers each touch node. The reason is that the distribution of electric force lines inducing a change in capacitance of each touch node is not uniform in each touch node, and the above-described dead zone characteristics are formed unevenly over the entire area of the touch panel.
- a touch input is performed on a target display pixel using a specific display pixel or a plurality of adjacent display pixels as 'target display pixels'.
- the amount of change in capacitance at the touch nodes around the target display pixel is measured and stored in a table form.
- the amount of capacitance change in the touch node sets around the display pixel 55 is set.
- the combination of may be one or more.
- the area 91 may be covered in the case of the first touch input for selecting the same display pixel 55, and the area 92 may be covered in the case of the second touch.
- the capacitance change value of the touch nodes 2 to 9 is expected to be greater than or equal to 0, but in the second touch, the capacitance is only expected to change in the touch nodes 5, 6, and 8. From the above example, it can be understood that for a specific target display pixel, there may be more than one combination of capacitance variation in the touch node sets.
- FIG. 4 illustrates the number of combinations of capacitance change amounts that can be output from one touch node set described above in an embodiment of the present invention.
- Each column represents an index of each touch node of the one set of touch nodes around the target display pixel where the touch input is made, and uses the example of FIG.
- Each row represents each case in all cases that can be output from nine touch nodes in the set of one touch node.
- the number of all possible outputs is related to the detection resolution of the capacitance change amount output from each touch node. This detection resolution may be related to the performance of the AD converter present in the detector.
- the number written at the intersection of each row and column of FIG. 4 represents the amount of change in capacitance measured at the corresponding touch node.
- the capacitance change amounts of the touch nodes 1 to 9 are respectively ⁇ 0, 0, 0. , 0, 0, 0, 0, 1, 2 ⁇ (case 7).
- the actual capacitance change amount in the touch nodes 1 through 9 is plural, such as 1, 2, and 3, respectively. Able to know.
- the capacitance change amounts of the touch nodes 1 to 9 are respectively ⁇ 0, 0, 0, 0, 1, 1, 0. , 1, 1 ⁇ (case 278).
- the amount of change in capacitance at each touch node obtained by actually performing a touch input with respect to each display pixel is stored in a table form as shown in FIG. 4, for example, it may be output from nine touch nodes shown in FIG. Any number of cases can be provided. Therefore, if any combination of values relating to capacitance change amounts is output to nine touch nodes later, the combination can be found from the table of FIG. 4 and the specific touch input position can be output at the resolution of the display pixel level.
- FIG. 5 is a modified example of FIG. 4.
- the modified example is modified to 1-bit resolution to reduce the searching time of the table.
- the number of all cases provided in the above table is the resolution of the value representing the amount of capacitance change in each touch node, and the peripheral touch node coupled to the above-described one center touch node. It may be determined according to the number of. In the case of the table shown in FIG. 5, a total of 256 cases may be provided.
- Equation 1 In another embodiment of the present invention uses the above equation (1). However, a value provided as an independent variable of Equation 1 may be provided using an actual value of the following method.
- FIGS. 6 and 3 show an example of a table provided for another embodiment of the present invention. Hereinafter, a description will be given with reference to FIGS. 6 and 3.
- the function f () in Equation 1 may be optimized according to the arrangement and electrical characteristics of the touch nodes provided in FIG. Therefore, in most of the 262,144 cases, the position of the display pixel on which the touch input is performed can be precisely specified by substituting the output value of capacitance variation in the single set of touch nodes into the function f ().
- the following phenomenon may occur.
- the actual touch input position is the display pixel 55
- the measured values of the touch nodes 1 to 9 in FIG. 3A are ⁇ 0, 0, 0, 0, 1, 1 , 0, 1, 1 ⁇ . If ⁇ 0, 0, 0, 0, 0, 1, 1, 0, 1, 1 ⁇ is substituted for f () as the independent variable, it is determined that the touch input position is the display pixel 66.
- Substituting ⁇ 0, 0, 0, 0, 1, 1, 0, 1, 0 ⁇ indicates that the touch input position is the display pixel 55
- the measured ⁇ 0, 0, 0, 0, 1, 1, 0, 1, 1 ⁇ to ⁇ 0, 0, 0, 0, 1, 1, 0, 1, 0 ⁇ is preferably stored in the mapping relationship as shown in Table 6. In this way, for example, in the case where touch input is actually made for the display pixel 55, (1) in the nine touch nodes of FIG.
- FIG. 7 is a modified example of FIG. 6.
- the modified example is modified to 1-bit resolution to reduce the searching time of the table.
- step S11 the touch node 5 having the largest amount of capacitance change may be determined.
- step S12 a rule provided in advance for the first fine touch position using the amount of change in capacitance at the determined touch node 5 and the touch nodes 1 to 4 and 6 to 9 around it. It can be calculated by (ex: f ()).
- a predetermined subsequent process may be performed using the calculated first fine touch position. For example, a specific output may be performed at the first display pixel corresponding to the first fine touch position.
- step S14 the second fine touch position corresponding to the combination of the variation amounts of the capacitances in the determined touch node 5 and the touch nodes 1-4, 6-9 in the vicinity thereof is previously previewed. You can search from the table provided ( Figure 4). Step S14 is performed to correct this if the output value by f () in step S12 is incorrect.
- step S15 the predetermined subsequent process may be corrected using the searched second fine touch position and performed again.
- step S13 the specific output for the first display pixel corresponding to the first fine touch position is canceled, and at the second display pixel corresponding to the second fine touch position retrieved in step S14, Specific output can be made. That is, the output in step S13 can be replaced with the output in step S15.
- the first fine touch position and the second fine touch position that is, two fine touch positions are detected for one touch input, which is because the search time of the table shown in FIG. 4 is long.
- the subsequent process is executed in real time with the result of f () having an error once, and thereafter, using the table provided as shown in FIG. The result is for calibrating the subsequent process.
- FIG. 9 is a modification of the flowchart of FIG. 8 and may be applied to a case in which a search time for searching the case in the table shown in FIG. 4 is fast enough to perform the processing of the subsequent process in real time. That is, in FIG. 9, steps S12 and S13 of FIG. 8 are omitted.
- FIGS. 1, 3, and 6 are flowchart illustrating a touch input position determining method according to another embodiment of the present invention. Hereinafter, a description will be given with reference to FIGS. 1, 3, and 6.
- step S21 the touch node 5 having the largest amount of capacitance change can be determined.
- step S22 a rule provided in advance for the first fine touch position by using the amount of change in capacitance at the determined touch node 5 and the touch nodes 1 to 4 and 6 to 9 around it. It can be calculated by (ex: f ()).
- the predetermined subsequent process may be performed using the calculated first fine touch position. For example, a specific output may be performed at the first display pixel corresponding to the first fine touch position.
- step S24 the corrected change amounts corresponding to the change amounts of the capacitance can be retrieved from the table provided in advance (Fig. 6). Step S24 is performed to correct this if the output value by f () in step S22 is incorrect.
- a second fine touch position may be calculated by the pre-provided rule f () using the corrected changes.
- step S26 the predetermined subsequent process may be corrected and performed again using the calculated second fine touch position.
- the specific output for the first display pixel corresponding to the first fine touch position is canceled, and at the second display pixel corresponding to the second fine touch position calculated in step S25.
- the specific output can be made.
- FIG. 11 is a modified example of the flowchart of FIG. 10 and may be applied to a case in which a search time for searching the case in the table shown in FIG. 6 is fast enough to perform the processing of the subsequent process in real time.
- FIG. 12 is a view for explaining the effect of the touch input position determination method according to an embodiment of the present invention.
- a line extending along the path of the touch input may be displayed on the display device.
- the touch input does not comply with the touch input as shown in the region 95 of FIG. 12B.
- the curve may be displayed on the display device.
- the error of the region 95 where the non-linearity related to the touch input exists is corrected so that the straight shape as shown in FIG. Can be displayed.
- the shape of the straight line in which the error is corrected as shown in FIG. Can be corrected is output again.
- This method comprises a first combination (ex: FIG. 1) with respect to capacitance change values at the center touch node 5 and at least one peripheral touch node 1-4, 6-9 around the center touch node 5.
- Obtaining first information (ex: '66' in case 278 of FIG. 4) mapped to the first combination;
- the method may include determining a touch input position (eg, the display pixel 66 of FIG. 3B) using the obtained first information.
- the center touch node 5 may be the touch node having the largest change amount of capacitance among the plurality of touch nodes shown in FIG. 1.
- the first spatial resolution of the touch input position may be greater than the second spatial resolution of the touch nodes.
- the first spatial resolution may be, for example, the screen resolution of the display pixels shown in FIG. 3B.
- the second spatial resolution may be a resolution which is understood as the touch nodes shown in FIG. 3A. It can be understood that the first spatial resolution and the second spatial resolution are different from the resolution representing the amount of change in capacitance described above. Also, the first spatial resolution may have a value between the screen resolution of the display pixels shown in FIG. 3B and the second spatial resolution.
- each information mapped to each combination of the possible combinations may be information about the touch input position.
- the information regarding the touch input position may be, for example, an index of each display pixel illustrated in FIG. 3B.
- each information mapped to each combination of the possible combinations may be a capacitance change value corrected from the capacitance change value included in each combination (see 285 in FIG. 6).
- an apparatus for determining a touch input position may include: a detector configured to acquire a change value of capacitance in a plurality of touch nodes, and a processor configured to provide a touch input position using an acquisition result of the detector. It may include.
- the sensing unit may correspond to the reference numeral 303 of FIG. 13, and the processor may correspond to the reference numeral 304 of FIG. 13.
- FIG. 13 illustrates an example of an electronic device using a conductor pattern according to an embodiment of the present invention.
- the electronic device 3100 may receive an input signal through the touch panel 301.
- the touch panel 301 may be formed to include a substrate on which electrode patterns in a matrix form are formed.
- the electronic device 3100 outputs a signal for driving the touch panel 301 and a touch panel 301 configured to transmit a touch input signal, and receives an input signal from the touch panel 301.
- a touch input signal is received from the voltage driver 302 and the touch panel controller 303 which receive a touch panel driving signal from the touch panel controller 303 and the touch panel controller 303 to generate a touch panel driving voltage.
- a main processor 304 configured to execute a program stored in the storage device 305, a storage device 305 storing one or more programs executed according to a touch input signal, and outputting a processing result of the main processor 304. It may include a display device 306.
- the display device 306 and the touch panel 301 may overlap each other.
- the touch panel controller 303 may include a touch sensing unit configured to sense a signal input from the touch panel 301, a panel driver generating a touch panel driving signal to transmit an input signal to the touch panel 301, and And a touch panel processor adapted to control.
- the touch panel processor may be a reprogrammable processor or a type of processor operated by dedicated logic such as a state machine.
- the electronic device 3100 may include a RAM or another type of storage device, and may further include another device such as a watchdog.
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Abstract
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Claims (10)
- 복수 개의 터치노드에서의 커패시턴스 변화값들로 이루어질 수 있는 가능한 조합들 및 상기 가능한 조합들에 매핑된 정보를 포함하는 테이블을 제공받는 단계;터치입력에 의해 발생한 상기 복수 개의 터치노드에서의 커패시턴스의 변화값들에 관한 제1조합을 획득하는 단계;상기 가능한 조합들 중 상기 제1조합을 검색하여 상기 제1조합에 매핑된 제1정보를 획득하는 단계; 및상기 획득한 제1정보를 이용하여 상기 터치입력의 입력위치를 결정하는 단계;를 포함하는,터치입력위치 결정방법.
- 제1항에 있어서,상기 복수 개의 터치노드는 한 개의 중심 터치노드와 상기 중심 터치노드에 인접한 한 개 이상의 주변 터치노드를 포함하며,상기 중심 터치노드는 상기 복수 개의 터치노드 중 커패시턴스의 변화량이 가장 큰 터치노드인 것을 특징으로 하는,터치입력위치 결정방법.
- 제1항에 있어서, 상기 가능한 조합들의 각 조합에 매핑된 상기 각 정보는 상기 터치입력의 입력위치의 좌표인, 터치입력위치 결정방법.
- 제1항에 있어서, 상기 가능한 조합들의 각 조합에 매핑된 상기 각 정보는, 상기 각 조합을 구성하는 커패시턴스 변화값으로부터 보정된 커패시턴스 변화값인, 터치입력위치 결정방법.
- 복수 개의 터치노드들을 포함하는 터치패널에서 터치입력위치를 결정하는 터치입력위치 결정방법으로서,중심 터치노드와 상기 중심 터치노드 주변의 한 개 이상의 주변 터치노드에서의 커패시턴스의 변화값들에 관한 제1조합을 획득하는 단계;상기 중심 터치노드와 상기 주변 터치노드에서의 커패시턴스 변화값들로 이루어질 수 있는 가능한 조합들 및 상기 가능한 조합들에 매핑된 정보를 포함하는 테이블로부터 상기 제1조합에 매핑된 제1정보를 획득하는 단계;상기 획득한 제1정보를 이용하여 터치입력된 위치를 결정하는 단계;를 포함하는,터치입력위치 결정방법.
- 제5항에 있어서,상기 가능한 조합들의 각 조합에 매핑된 각 정보는 상기 터치입력된 위치의 좌표이며,상기 각 정보를 상기 각 조합에 매핑하는 방법은,상기 터치패널에서의 특정 위치를 중심으로 터치입력을 수행하는 제1단계; 및상기 제1단계의 수행결과 출력되는 상기 터치패널의 적어도 일부의 터치노드들에서의 커패시턴스의 변화값들을 상기 특정 위치에 매핑하는 단계를 포함하는,터치입력위치 결정방법.
- 제5항에 있어서,상기 가능한 조합들의 각 조합에 매핑된 각 정보는, 상기 각 조합에 포함된 커패시턴스 변화값으로부터 보정된 커패시턴스 변화값이며,상기 각 정보를 상기 각 조합에 매핑하는 방법은,상기 터치패널에서의 특정 위치를 중심으로 터치입력을 수행하는 제1단계; 및상기 제1단계의 수행결과 출력되는 상기 터치패널의 적어도 일부의 터치노드들에서의 커패시턴스의 변화값들을, 함수 f( )에 독립변수로 입력하였을 때에 상기 함수 f( )가 정확한 터치입력위치를 출력하도록 하는 보정된 값들로 매핑하는 단계;를 포함하는,터치입력위치 결정방법.
- 복수 개의 터치노드들에서의 커패시턴스의 변화값을 획득하는 감지부; 및상기 감지부의 획득 결과를 이용하여 터치입력위치를 제공하는 처리부를 포함하며,상기 처리부는,상기 복수 개의 터치노드에서의 커패시턴스 변화값들로 이루어질 수 있는 가능한 조합들 및 상기 가능한 조합들에 매핑된 정보를 포함하는 테이블을 제공받는 단계;터치입력에 의해 발생한 상기 복수 개의 터치노드에서의 커패시턴스의 변화값들에 관한 제1조합을 획득하는 단계;상기 가능한 조합들 중 상기 제1조합을 검색하여 상기 제1조합에 매핑된 제1정보를 획득하는 단계; 및상기 획득한 제1정보를 이용하여 상기 터치입력의 입력위치를 결정하는 단계;를 수행하도록 되어 있는,터치입력위치 결정장치.
- 제8항에 있어서, 상기 가능한 조합들의 각 조합에 매핑된 상기 각 정보는 상기 터치입력의 입력위치의 좌표인, 터치입력위치 결정장치.
- 제8항에 있어서, 상기 가능한 조합들의 각 조합에 매핑된 상기 각 정보는, 상기 각 조합을 구성하는 커패시턴스 변화값으로부터 보정된 커패시턴스 변화값인, 터치입력위치 결정장치.
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US9971463B2 (en) * | 2015-09-29 | 2018-05-15 | Synaptics Incorporated | Row-based sensing on matrix pad sensors |
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US20110310038A1 (en) * | 2010-06-18 | 2011-12-22 | Samsung Electronics Co., Ltd. | Method and apparatus for correcting touch coordinates in touch system |
WO2012092291A2 (en) * | 2010-12-29 | 2012-07-05 | Microsoft Corporation | Touch event anticipation in a computing device |
US20130057493A1 (en) * | 2011-09-01 | 2013-03-07 | Jonghee Hwang | Display having touch sensor and method for improving touch performance thereof |
KR20130028421A (ko) * | 2011-09-09 | 2013-03-19 | 삼성전기주식회사 | 접촉 감지 장치 및 접촉 감지 방법 |
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---|---|---|---|---|
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US20110310038A1 (en) * | 2010-06-18 | 2011-12-22 | Samsung Electronics Co., Ltd. | Method and apparatus for correcting touch coordinates in touch system |
WO2012092291A2 (en) * | 2010-12-29 | 2012-07-05 | Microsoft Corporation | Touch event anticipation in a computing device |
US20130057493A1 (en) * | 2011-09-01 | 2013-03-07 | Jonghee Hwang | Display having touch sensor and method for improving touch performance thereof |
KR20130028421A (ko) * | 2011-09-09 | 2013-03-19 | 삼성전기주식회사 | 접촉 감지 장치 및 접촉 감지 방법 |
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