Touch input device

Abstract

To provide a touch sensor that ensures that a touch signal can be sensed in a state where a touch input device is affected by an LGM in the same or similar way as in a state where it is not affected and the touch input device including the same.SOLUTION: A touch input device may include: a touch sensor including a plurality of electrodes; a drive unit configured to apply a drive signal to at least part of the plurality of electrodes of the touch sensor; a touch signal detection unit configured to detect a signal related to a touch position of an object input to a touch surface from at least part of the plurality of electrodes of the touch sensor; and an LGM disturbing signal detection unit configured to detect a signal related to an LGM disturbing signal generated on the touch surface from at least part of the plurality of electrodes of the touch sensor.SELECTED DRAWING: Figure 1a

Description

[Technical field]

[0001] The present invention relates to a touch input device, and more particularly to a touch input device according to the present invention. Even when exposed to the effects of low ground mass (M), the input on the touch surface is A touch sensor that can accurately detect the presence or absence of touch by an object and / or the touch position. The present invention relates to a touch input device including a sensor. [Background technology]

[0002] A wide variety of input devices are used to operate a computing system. For example, buttons, keys, joysticks, and touchpads. Input devices such as touch screens are used. Easy and convenient operation of touch screens. This has led to an increase in the use of touch screens when interacting with computing systems. .

[0003] A touch screen is a transparent display with a touch-sensitive surface. A touch input device including a touch sensor panel, which may be any panel. Such a touch sensor panel can be used to create a touch surface. A touch-sensitive surface is attached to the front of the display screen, covering the visible surface of the display screen. By simply touching the touch screen with a finger, Allows a user to operate a computing system. The computing system recognizes touches and the location of the touches on the touch screen. By interpreting the touch as:

[0004] When the driving electrode and the receiving electrode are implemented in a single layer or a double layer, the The touch input device on which the touch sensor is mounted is not held by hand (floating state). ) may be affected by LGM (low ground mass). For example, a signal that should be detected normally may disappear, or a signal that should be detected may not be detected properly. may split and show a signal as if it was touched in more than two places. In Korean Patent Application No. 10-2019-0006389 filed by the applicant of the present application, The impacts are described in detail. Summary of the Invention [Problem to be solved by the invention]

[0005] The problem to be solved by the present invention is that the touch input device is affected by LGM. However, the touch sensor can detect the touch signal in the same or similar manner as if the touch signal were not detected. The present invention provides a touch input device including the same.

[0006] In addition, even if the touch input device is affected by LGM, multi-touch of 2 or more is possible. The present invention provides a touch sensor capable of detecting a touch input signal and a touch input device including the touch sensor. do.

[0007] In addition, even if the touch input device is affected by LGM, cross touch is not possible. A third touch (3 rd Touch recognition A sensor and a touch input device including the same are provided. [Means for solving the problem]

[0008] According to an embodiment, a touch input device includes a touch sensor including a plurality of electrodes; a driving section that applies a driving signal to at least a part of the plurality of electrodes of the sensor; The input to the touch surface is input from at least some of the electrodes of the touch sensor. a touch signal detector for detecting a signal associated with a touch position of a touched object; A sensor that generates a signal on the touch surface from at least some of the electrodes of the sensor. The LGM jamming signal detector may include an LGM jamming signal detector for detecting a signal associated with an LGM jamming signal.

[0009] The signal associated with the touch position is transmitted to at least one of the plurality of electrodes by the object. Also includes information on the change in mutual capacitance between some electrodes, and is related to the LGM disturbance signal. The signal is a coupling signal between the object and at least some of the electrodes. The information may include information on a capacitance that reduces the amount of change in the mutual capacitance caused by the

[0010] The signal associated with the touch position is transmitted to the object and at least one of the plurality of electrodes. The change in mutual capacitance caused by coupling between the electrodes of the It may include capacitance information.

[0011] The signal associated with the LGM disturbance signal is a signal that is generated by detecting the voltage of at least some of the electrodes. It is not necessary to include information on the amount of change in mutual capacitance between the poles.

[0012] A control for suppressing a signal related to the LGM disturbance signal from a signal related to the touch position. The compound may further include a control portion.

[0013] The touch signal detector converts a signal related to the touch position into a digital signal. The LGM interference signal detector outputs a signal related to the LGM interference signal as a digital signal. The control unit converts the touch position converted into the digital signal into a corresponding signal and outputs the converted signal. and suppressing a signal associated with the LGM interference signal that is converted to the digital signal from a signal associated with the LGM interference signal. The present invention can be characterized in that:

[0014] The touch sensor includes a plurality of driving electrodes and a plurality of touch signal detection electrodes. The touch signal detection unit detects one of the plurality of driving electrodes among the plurality of touch signal detection electrodes. At least one touch signal detection electrode forming a mutual capacitance with at least one drive electrode. a signal associated with a touch position of an object input to the touch surface from the electrode; The M interference signal detection unit detects the driving voltage of at least one of the plurality of touch signal detection electrodes. At least one other touch signal detection electrode that does not form a mutual capacitance with the LG electrode It is possible to detect signals associated with M jamming signals.

[0015] The signal associated with the touch position is transmitted between the object and the at least one driving electrode. and a coupling between the object and the at least one touch signal detection electrode. a capacitance that reduces the mutual capacitance generated by at least one of the rings; The LGM interference signal includes information related to the object and the at least one Coupling between driving electrodes and detecting touch signals of the object and at least one other object. The mutual capacitance generated by at least one of the couplings between the electrodes is It may include information on the capacitance to be reduced.

[0016] A control for suppressing a signal related to the LGM disturbance signal from a signal related to the touch position. The compound may further include a control portion.

[0017] The at least one touch signal detection electrode is adjacent to the at least one driving electrode. and the at least one other touch signal detection electrode is disposed in a direction parallel to the at least one other touch signal detection electrode. the at least one touch signal detection electrode is disposed at a predetermined distance from the driving electrode; Each may be connected to a different channel.

[0018] the at least one touch signal detection electrode and the at least one other touch signal detection electrode At least one of the driving electrodes disposed between the output electrode and the driving electrode is set to ground, The at least one touch signal detection electrode may be set to the ground.

[0019] The total area of ​​the at least one other touch signal detection electrode is may be equal to the total area of ​​the touch signal detection electrodes.

[0020] The touch sensor includes a plurality of driving electrodes, a plurality of touch signal detection electrodes, and a plurality of LGs. M interference signal detection electrodes, and the touch signal detection unit is Among the plurality of driving electrodes, a mutual capacitance is formed with at least one driving electrode. A touch position of an object input to the touch surface from at least one touch signal detection electrode. and the LGM interference signal detector detects the plurality of LGM interference signal detectors. At least one of the electrodes that does not form a mutual capacitance with the at least one driving electrode. A signal related to the LGM interference signal can be detected from the LGM interference signal detection electrode. do.

[0021] According to an embodiment, the signal related to the touch position is a signal corresponding to the object and the at least one and detecting a coupling between the driving electrodes and the at least one touch signal. The mutual capacitance generated by at least one of the couplings between the electrodes is The signal associated with the LGM interference signal includes information on the capacitance to be reduced, and the signal is a coupling between the at least one driving electrode and the object and the at least one at least one of the coupling between the LGM interference detection electrodes The information may include information on the capacitance that reduces the mutual capacitance.

[0022] A control for suppressing a signal related to the LGM disturbance signal from a signal related to the touch position. The compound may further include a control portion.

[0023] Each of the plurality of LGM disturbance signal detection electrodes is connected to each of the plurality of touch signal detection electrodes. It may be placed inside each of them.

[0024] a center of each of the plurality of LGM disturbance signal detection electrodes and a center of each of the plurality of touch signal detection electrodes The centers of each may coincide.

[0025] The total area of ​​the plurality of LGM disturbance signal detection electrodes is may be equal to the sum of the areas of

[0026] The plurality of LGM disturbance signal detection electrodes are arranged such that, except for a part inside the plurality of touch signal detection electrodes, It may be formed by removing

[0027] The at least one touch signal detection electrode is connected to the at least one driving electrode. At least one touch panel is disposed between the at least one LGM interference signal detection electrode and the at least one touch panel. The signal detection electrode may be set to ground.

[0028] The plurality of touch signal detection electrodes and the plurality of LGM disturbance signal detection electrodes are and the driving electrodes are disposed in layers different from each other, and the driving electrodes are disposed in layers different from each other. A first region overlapping the output electrode is a region where the plurality of drive electrodes overlap the plurality of LGM interference electrodes. It may be larger than the second area that is overlapped with the signal detection electrode.

[0029] Each of the plurality of LGM disturbance signal detection electrodes is connected to each of the plurality of touch signal detection electrodes. It may be placed inside each of them.

[0030] a center of each of the plurality of LGM disturbance signal detection electrodes and a center of each of the plurality of touch signal detection electrodes The centers of each may coincide.

[0031] The total area of ​​the plurality of LGM disturbance signal detection electrodes is may be equal to the sum of the areas of

[0032] The plurality of LGM disturbance signal detection electrodes are arranged such that, except for a part inside the plurality of touch signal detection electrodes, It may be formed by removing

[0033] The at least one touch signal detection electrode is connected to the at least one driving electrode. At least one touch panel is disposed between the at least one LGM interference signal detection electrode and the at least one touch panel. The signal detection electrode may be set to ground.

[0034] The plurality of touch signal detection electrodes and the plurality of LGM disturbance signal detection electrodes are and the driving electrodes are disposed in layers different from each other, and the driving electrodes are disposed in layers different from each other. A first region overlapping the output electrode is a region where the plurality of drive electrodes overlap the plurality of LGM interference electrodes. It may be larger than the second area that is overlapped with the signal detection electrode.

[0035] Each of the plurality of LGM disturbance signal detection electrodes is connected to each of the plurality of touch signal detection electrodes. It may be placed inside each of them.

[0036] a center of each of the plurality of LGM disturbance signal detection electrodes and a center of each of the plurality of touch signal detection electrodes The centers of each may coincide.

[0037] The total area of ​​the plurality of LGM disturbance signal detection electrodes is may be equal to the sum of the areas of

[0038] The width of the first region may be greater than the width of the second region.

[0039] According to an embodiment, the touch sensor includes a plurality of driving electrodes and a plurality of touch signal detection electrodes. The touch signal detection unit detects the touch signal detection electrodes of the plurality of touch signal detection electrodes. At least one of the driving electrodes forming a mutual capacitance with at least one of the driving electrodes A signal associated with a touch position of an object input to the touch surface from the touch signal detection electrodes. The LGM interference signal detection unit detects the plurality of touch signal detection electrodes. The small number of drive electrodes does not form a mutual capacitance with at least one other drive electrode among the small number of drive electrodes. and detecting a signal associated with the LGM disturbance signal from at least one touch signal detection electrode. This can be done.

[0040] The signal associated with the touch position is transmitted between the object and the at least one driving electrode. and a coupling between the object and the at least one touch signal detection electrode. a capacitance that reduces the mutual capacitance generated by at least one of the rings; The LGM interference signal includes information related to the object and at least one of the other and detecting a coupling between the driving electrodes and the at least one touch signal. The mutual capacitance generated by at least one of the couplings between the electrodes is It may include information on the capacitance to be reduced.

[0041] According to an embodiment, a touch input device having a touch surface includes a plurality of first electrodes. A touch sensor including a first electrode row and a plurality of second electrode rows including a plurality of second electrodes. In the first touch area of ​​the touch sensor, any one of the plurality of first electrode rows corresponding to a first electrode included in one of the first electrode rows, At least two second electrodes included in one second electrode column are arranged adjacent to each other in the column direction, In a second touch area adjacent to the first touch area in a row direction, At least two other second electrodes included in the second electrode row corresponding to the other first electrodes included in the second electrode row are arranged adjacent to each other in a column direction, and the at least two second touch regions included in the second touch region are The second electrode disposed first in the row direction among the electrodes is disposed in the first touch area. a second electrode arranged immediately before a second electrode arranged last in a row direction among the at least two second electrodes; a second electrode connected to the second touch area by a trace; The second electrode disposed second in the row direction of the two second electrodes is the first touch area. The second electrode arranged last in the row direction among the at least two second electrodes arranged in the row direction the at least two electrodes connected to a trace and disposed in the second touch area; Any one of the remaining second electrodes arranged in the row direction among the second electrodes is disposed in the first touch area. a second electrode disposed at a position symmetrical to any one of the remaining second electrodes in the region; and may be connected to one trace.

[0042] At least one of the at least two second electrodes included in the second electrode row The first electrodes included in the first electrode row that form mutual capacitance with the second electrodes are a touch signal detector for detecting a signal associated with a touch position of an object input to a touch surface; Among the first electrodes included in a first electrode row different from the first electrode row, the at least one A signal related to the LGM interference signal is detected from a first electrode that does not form a mutual capacitance with the second electrode. The LGM interference signal detection unit may further include an LGM interference signal detection unit.

[0043] The signal associated with the touch position is transmitted to the object, the at least one second electrode, and the front electrode. The mutual static electricity generated by coupling between the first electrodes included in the first electrode row The signal associated with the LGM disturbance signal includes information on the capacitance of the LGM disturbance signal. an object, the at least one second electrode, and the first electrodes included in the other first electrode array; The mutual capacitance generated by the coupling between the That's fine.

[0044] A touch input device having a touch surface according to an embodiment includes a plurality of first electrodes. The touch sensor includes a first electrode row and a plurality of second electrode rows including a plurality of second electrodes. In the first touch area of ​​the touch sensor, any one of the first electrode columns In response to a first electrode included in a certain first electrode row, one of the plurality of second electrode rows The first electrode set and the second electrode set included in a certain second electrode column are arranged adjacent to each other in the column direction. wherein the first electrode set and the second electrode set each include at least two second electrodes. In a second touch area adjacent to the first touch area in a row direction, A third electrode set and a fourth electrode set included in the second electrode array corresponding to the other first electrodes included in the second electrode array. The third electrode set and the fourth electrode set are disposed adjacent to each other in a column direction, Each of the first and second electrodes includes at least two second electrodes, and the third electrode set includes at least two Any one of the second electrodes is a second electrode of the first electrode set. A second electrode is connected to one trace and is arranged symmetrically in the row direction to one of the electrodes. and any one of the at least two second electrodes included in the fourth electrode set is In the second electrode set, a second electrode is provided in a row direction opposite to any one of the at least two second electrodes. The second electrode may be coupled to a trace located at a symmetrical position.

[0045] At least one second electrode of at least two second electrodes included in the second electrode row The first electrode included in the first electrode row that forms a mutual capacitance with the electrode on the touch surface a touch signal detection unit for detecting a signal associated with a touch position of an object input to a surface; Among the first electrodes included in the first electrode row different from the first electrode row, the at least one second electrode A signal related to the LGM interference signal is detected from a first electrode that does not form a mutual capacitance with the first electrode. The device may further include a GM interference signal detection unit.

[0046] The signal associated with the touch position is a signal between the object and the at least one second electrode. and coupling between the object and the first electrodes included in the first electrode row. a capacitance reducing means for reducing the mutual capacitance caused by at least one of the information associated with the LGM interference signal, the signal being Coupling between two electrodes and the first electrode included in the object and the other first electrode row and reducing the mutual capacitance caused by at least one of the couplings between The capacitance information may include information on the capacitance that causes the

[0047] A touch input device having a touch surface according to an embodiment includes a plurality of first electrodes. The touch sensor includes a first electrode row and a plurality of second electrode rows including a plurality of second electrodes. A second electrode row is disposed on one side of the first electrode row, which is one of the first electrode rows. and another second electrode row is arranged on the other side of the first electrode row, and any one of the first electrode rows The second electrode included in the second electrode row and the other second electrode included in the second electrode row are arranged around the first electrode. The other second electrodes constitute the same channel, and the first electrodes are arranged in the same row as the first electrodes. The first electrode may be connected to the first electrode via a common channel.

[0048] The first electrode is disposed at the center, and the second electrode row includes a second electrode 2-1 and a second electrode 2-2 on the first side. and two electrodes are arranged on the other side of the first electrode, the other second electrode row being included in the second electrode row. A 2-3 electrode and a 2-4 electrode are arranged, and the 2-1 electrode and the 2-3 electrode are arranged in the same manner. the 2-2 electrode and the 2-4 electrode constitute one channel, and the 2-2 electrode and the 2-4 electrode constitute the same channel. It is possible.

[0049] The first electrodes and the first electrodes are arranged in the same row. It may be half the number of electrodes.

[0050] The first electrodes included in the first electrode row are disposed on the one side of the second electrode row. The 2-1 electrode and the 2-2 electrode are disposed adjacent to each other, and the other electrodes included in the first electrode row are disposed adjacent to each other. 2-3 and 2-4 electrodes included in the second electrode row on the one side corresponding to the first electrodes; are arranged adjacent to each other, and the 2-1 electrode and the 2-3 electrode are connected to one second trace. The 2-2 electrode and the 2-4 electrode are connected to another second trace. good.

[0051] The first electrodes included in the first electrode row are disposed on the one side of the second electrode row. The 2-1 electrode and the 2-2 electrode are disposed adjacent to each other, and the other electrodes included in the first electrode row are disposed adjacent to each other. 2-3 and 2-4 electrodes included in the second electrode row on the one side corresponding to the first electrodes; are arranged adjacent to each other, and the 2-1 electrode and the 2-4 electrode are connected to one second trace. The 2-2 electrode and the 2-3 electrode are connected to another second trace. good.

[0052] The first electrodes included in the first electrode row are disposed on the one side of the second electrode row. The 2-1 electrode and the 2-2 electrode are disposed adjacent to each other, and the other electrodes included in the first electrode row are disposed adjacent to each other. The 2-2 electrode and the 2-3 electrode included in the second electrode row on the one side corresponding to the first electrode are The 2-1 electrode and the 2-3 electrode are arranged adjacent to each other, and the 2-1 electrode and the 2-3 electrode are connected to one second trace. may be linked to

[0053] According to the embodiment, a front electrode is provided on the one side corresponding to the first electrodes included in the first electrode row. The 2-1 electrode and the 2-2 electrode included in the second electrode row are disposed adjacent to each other, The second electrode included in the second electrode row on the one side corresponds to another first electrode included in the electrode row. The second electrode and the second-third electrode are disposed adjacent to each other, and the first electrode row includes a The 2-3 electrode and the 2-4 electrode included in the second electrode row on the one side corresponding to the electrodes, are arranged adjacent to each other, and the 2-1 electrode and the 2-3 electrode are connected to one second trace. the 2-2 electrode and the 2-4 electrode are connected to another second trace; The other electrode included in the second electrode row is disposed on the other side in correspondence with the first electrode included in the first electrode row. The 2-1' electrode and the 2-2' electrode are disposed adjacent to each other, and are included in the first electrode row. The 2-2' electrodes included in the other second electrode row on the other side corresponding to the other first electrodes the second and third electrodes are arranged adjacent to each other, and the second and third electrodes are arranged adjacent to each other. The 2-3' electrodes and the 2-4' electrodes included in the other second electrode row on the other side corresponding to the electrodes ' electrodes are arranged adjacent to each other, and the 2-1' electrode and the 2-2' electrode are connected to the one second trace. The second trace is connected to the second-2' electrode and the second- The 4' electrodes may be connected.

[0054] The one side corresponds to either the left side or the right side of the first electrode, The other side corresponds to the other of the left side and the right side with respect to the first electrode. At least one of the part of the one second trace and the part of the other one second trace One may be disposed above the first electrode.

[0055] The first electrodes and some of the first electrodes arranged in the same row as the first electrodes are The electrodes constitute electrodes of the same channel, and all the electrodes of the same channel are arranged on one first tray. The signal may be coupled to a

[0056] The same row is a first row of the touch sensor, and the first trace is , may be disposed above the touch sensor.

[0057] The first electrodes and some of the first electrodes arranged in the same row as the first electrodes are The electrodes constitute electrodes of the same channel, and some of the electrodes of the same channel are It may be connected to a trace.

[0058] The same row is a first row of the touch sensor, and the first trace is , may be disposed above the touch sensor.

[0059] The first electrodes and some of the first electrodes arranged in the same row as the first electrodes are The electrodes constitute electrodes of the same channel, and some of the electrodes of the same channel are It may be connected to a trace.

[0060] The same row is a first row of the touch sensor, and the first trace is , may be disposed above the touch sensor.

[0061] The second electrode and the other second electrode form a mutual capacitance with the first electrode. a touch signal detector for detecting a signal associated with a touch position of an object input on the touch surface; Among the plurality of second electrodes, a second electrode that does not form a mutual capacitance with the first electrode to LG The LGM interference detection unit may further include an LGM interference signal detection unit for detecting a signal related to the M interference signal.

[0062] A touch input device having a touch surface according to an embodiment includes a plurality of first electrodes. The touch sensor includes a first electrode row and a plurality of second electrode rows including a plurality of second electrodes. A second electrode row is disposed on one side of the first electrode row, which is one of the first electrode rows. On the other side of the first electrode row, another second electrode row is arranged. The second electrode included in the second electrode row and the other second electrode included in the second electrode row are arranged around the first electrode. The other second electrodes form the same channel and correspond to the first electrodes included in the first electrode row. The second electrode row includes a 2-1 electrode and a 2-2 electrode arranged adjacent to each other on the one side. and a second electrode array is provided on the one side of the first electrode array so as to correspond to another first electrode included in the first electrode array. The 2-3 electrode and the 2-4 electrode are disposed adjacent to each other, and the 2-1 electrode and the 2- The 2-2 electrode and the 2-4 electrode are connected to a second trace. It may be coupled to another second trace. Effect of the Invention

[0063] By using the touch sensor and the touch input device including the touch sensor according to the embodiment of the present invention, Even when the touch input device is in a floating state, the touch signals are the same or similar to those in a gripped state. The advantage is that the signal can be sensed.

[0064] In addition, even if the touch input device is in a floating state, it can recognize multi-touch of two or more. This has the advantage that

[0065] Also, a third touch (3 rd Touch ) can be recognized. [Brief description of the drawings]

[0066] [Figure 1a] FIG. 1a is a schematic diagram of a touch sensor 10 in a touch input device and an arrangement for its operation according to an embodiment. [Figure 1b] FIG. 1b shows a circuit diagram of the touch signal detection unit and the LGM disturbance signal detection unit constituting FIG. 1a. [Figure 1c] FIG. 1c shows a circuit diagram of the touch signal detection unit and the LGM disturbance signal detection unit constituting FIG. 1a. [Diagram 2] FIG. 2 is an exemplary diagram of a touch sensor having a double layer structure. [Diagram 3] FIG. 3 is an exemplary diagram of a touch sensor having a double layer structure. [Figure 4] 4(a) to 4(f) are exemplary cross-sectional structural views of a touch input device having a touch sensor. [Diagram 5] FIG. 5 shows output data for explaining why an LGM disturbance signal is generated in a touch input device having the touch sensor shown in FIG. 2 or / and FIG. [Figure 6] FIG. 6 shows output data for explaining why an LGM disturbance signal is generated in a touch input device having the touch sensor shown in FIG. 2 or / and FIG. [Figure 7] FIG. 7 is a diagram for explaining a principle by which an LGM disturbance signal is generated when a touch input device having a touch sensor implemented in a double layer is in a floating state. [Figure 8] FIG. 8 is a diagram illustrating a principle by which an LGM disturbance signal is generated when a touch input device having a touch sensor implemented in a double layer is in a floating state. [Figure 9]FIG. 9 is a diagram showing an example in which the touch sensor 10 shown in FIG. 1 is configured with a single layer. [Figure 10] FIG. 10 is an enlarged view of only a portion of the touch sensor 10 shown in FIG. 1 as another example formed in a single layer. [Figure 11] (a) and (b) of FIG. 11 show raw data output from a touch input device having the touch sensor structure shown in FIG. 10 when an object such as a thumb touches a specific portion of a touch surface of the touch input device. [Figure 12] FIG. 12 is an enlarged view of a portion of the touch sensor 10 shown in FIG. 1 as yet another example in which the touch sensor 10 is formed in a single layer. [Figure 13] FIG. 13 shows raw data when an object such as a thumb touches a specific portion of a touch surface of a touch input device having the touch sensor structure shown in FIG. [Figure 14] FIG. 14 is a graph generally comparing the LGM performance of the touch sensors shown in FIG. 10 and FIG. [Figure 15] FIG. 15 is an enlarged view of a portion of the touch sensor 10 shown in FIG. 1 as yet another example formed in a single layer. [Figure 16] FIG. 16 is an enlarged view of a portion of the touch sensor 10 shown in FIG. 1 as yet another example formed in a single layer. [Figure 17] FIG. 17 is an exemplary conceptual diagram of a touch sensor according to an embodiment of the present invention. [Figure 18] FIG. 18 is a conceptual diagram conceptualizing the touch sensor according to the embodiment of the invention shown in FIG. [Figure 19a] FIG. 19a is a diagram illustrating an example in which some of the plurality of touch signal detection electrodes of the touch sensor illustrated in FIG. 12 are used as LGM disturbance signal detection electrodes. [Figure 19b]FIG. 19b is a diagram illustrating an example in which a separate LGM disturbance signal detection electrode is implemented within a plurality of touch signal detection electrodes of a touch sensor, as compared to FIG. 19a. [Figure 19c] FIG. 19c illustrates an electrode pattern and a trace connection method fabricated by applying the principles of FIGS. 37c to 37e described above with reference to FIG. 19a. [Figure 19d] FIG. 19d illustrates an electrode pattern and a trace connection method fabricated by applying the principles of FIGS. 37c to 37e described above with reference to FIG. 19a. [Figure 19e] FIG. 19e illustrates an electrode pattern and a trace connection method fabricated by applying the principles of FIGS. 37c to 37e described above with reference to FIG. 19a. [Figure 19f] FIG. 19f illustrates another electrode arrangement according to an embodiment. [Figure 19g] FIG. 19g illustrates another electrode arrangement according to an embodiment. [Figure 20] FIG. 20 is an exemplary diagram of raw data output from the touch input device having a touch sensor according to the embodiment of the present invention shown in FIG. [Figure 21] FIG. 21 is a conceptual diagram of a touch sensor according to an embodiment of the present invention having a bridge structure. [Figure 22] FIG. 22 is a configuration diagram of a touch sensor according to an example to which the conceptual diagram of the touch sensor shown in FIG. 21 can be applied. [Figure 23] FIG. 23 is another conceptual diagram of a touch sensor according to an embodiment of the present invention having a bridge structure. [Figure 24] FIG. 24 is a configuration diagram of a touch sensor according to an example to which the conceptual diagram of the touch sensor shown in FIG. 23 can be applied. [Figure 25a] FIG. 25a is a configuration diagram of a touch sensor according to another example to which the conceptual diagram of the touch sensor shown in FIG. 21 can be applied. [Figure 25b]FIG. 25b is a diagram referred to in order to explain an example in which a separate LGM disturbance signal detection electrode is implemented within a plurality of touch signal detection electrodes, as compared with FIG. 25a. [Figure 26] FIG. 26 is a configuration diagram of a touch sensor according to another example to which the conceptual diagram of the touch sensor shown in FIG. 23 can be applied. [Figure 27] FIG. 27 shows raw data output by the touch input device having the touch sensor shown in FIG. 10 in both the gripped state and the floating state when tested with a 15φ conductive rod. [Figure 28] FIG. 28 shows raw data output in a gripped state and a floating state by the touch input device according to the embodiment of the present invention having the touch sensor shown in FIG. 12 when tested with a 15φ conductive rod. [Figure 29] FIG. 29 shows raw data output by the touch input device having the touch sensor shown in FIG. 10 in both the gripped state and the floating state when tested with a 20φ conductive rod. [Diagram 30] FIG. 30 shows raw data output in a gripped state and a floating state by the touch input device according to the embodiment of the present invention having the touch sensor shown in FIG. 12 when tested with a 20φ conductive rod. [Diagram 31] FIG. 31 shows raw data output by a touch input device having a touch sensor shown in FIG. 10 in both a gripped state and a floating state when tested with a human thumb. [Diagram 32] FIG. 32 shows raw data output by a touch input device according to an embodiment of the present invention having the touch sensor shown in FIG. 12 in a gripped state and a floating state when tested with a human thumb. [Diagram 33] FIG. 33 is a diagram illustrating that a conventional touch input device cannot recognize multi-touches by multiple objects when the device is in a floating state. [Diagram 34] 34(a) to 34(c) are raw data for illustrating how a touch input device according to an embodiment of the present invention recognizes multi-touches. [Diagram 35] FIG. 35 is a diagram illustrating that when a cross touch and a third touch are performed together on a touch surface of a conventional touch input device, the third touch cannot be recognized. [Diagram 36] FIGS. 36(a) to 36(c) are raw data for illustrating how a touch input device according to an embodiment of the present invention recognizes a cross touch and a third touch. [Figure 37a] FIG. 37a is a diagram to be referred to for explaining an arrangement form of electrodes constituting a touch sensor 10 for reducing an LGM disturbance signal according to another embodiment of the present invention. [Figure 37b] FIG. 37b is a diagram to be referred to for explaining an arrangement form of electrodes constituting a touch sensor 10 for reducing an LGM disturbance signal according to another embodiment of the present invention. [Figure 37c] FIG. 37c is a diagram to be referred to for explaining an arrangement form of electrodes constituting a touch sensor 10 for reducing an LGM disturbance signal according to another embodiment of the present invention. [Fig. 37d] FIG. 37d is a diagram to be referred to for explaining an arrangement form of electrodes constituting a touch sensor 10 for reducing an LGM disturbance signal according to another embodiment of the present invention. [Figure 37e] FIG. 37e is a diagram to be referred to for explaining an arrangement form of electrodes constituting a touch sensor 10 for reducing an LGM disturbance signal according to another embodiment of the present invention. [Figure 38] FIG. 38 illustrates various electrode arrangements and trace connection configurations according to other embodiments of the present invention, together with a case in which LGM suppression is applied in each embodiment. [Figure 39] FIG. 39 illustrates various electrode arrangements and trace connection configurations according to other embodiments of the present invention, together with a case in which LGM suppression is applied in each embodiment. [Diagram 40]FIG. 40 illustrates various electrode arrangements and trace connection configurations according to other embodiments of the present invention, together with a case in which LGM suppression is applied in each embodiment. [Diagram 41] FIG. 41 illustrates various electrode arrangements and trace connection configurations according to other embodiments of the present invention, together with a case in which LGM suppression is applied in each embodiment. [Diagram 42] FIG. 42 illustrates various electrode arrangements and trace connection configurations according to other embodiments of the present invention, together with a case in which LGM suppression is applied in each embodiment. [Diagram 43] FIG. 43 illustrates various electrode arrangements and trace connection configurations according to other embodiments of the present invention, together with a case in which LGM suppression is applied in each embodiment. [Diagram 44] FIG. 44 illustrates various electrode arrangements and trace connection configurations according to other embodiments of the present invention, together with a case in which LGM suppression is applied in each embodiment. [Diagram 45] FIG. 45 illustrates various electrode arrangements and trace connection configurations according to other embodiments of the present invention, together with a case in which LGM suppression is applied in each embodiment. [Figure 46] FIG. 46 illustrates various electrode arrangements and trace connection configurations according to other embodiments of the present invention, together with a case in which LGM suppression is applied in each embodiment. [Figure 47] FIG. 47 illustrates various electrode arrangements and trace connection configurations according to other embodiments of the present invention, together with a case in which LGM suppression is applied in each embodiment. [Figure 48] FIG. 48 illustrates various electrode arrangements and trace connection configurations according to other embodiments of the present invention, together with a case in which LGM suppression is applied in each embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0067] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following detailed description of the present invention illustrates specific embodiments in which the invention may be practiced. Reference is made to the accompanying drawings, in which: The various embodiments of the present invention are different but mutually exclusive. It should be understood that the particular form described herein need not necessarily be the same. The shape, structure, and characteristics may be changed without departing from the spirit and scope of the present invention in connection with one embodiment. It should be understood that the individual components within each disclosed embodiment may be embodied in other embodiments. It will be understood that the location or arrangement of the may be varied without departing from the spirit and scope of the present invention. Therefore, the following detailed description should not be taken in a limiting sense. Rather, the scope of the invention, if properly delineated, is as set forth in the claims. The present invention is limited only by the appended claims together with their full scope of equivalents. Like reference numbers indicate the same or similar functionality across the various aspects.

[0068] Hereinafter, a touch sensor and a method for manufacturing the same according to an embodiment of the present invention will be described with reference to the accompanying drawings. A touch input device including a capacitive touch sensor 10 will be described below. The same or similar may be applied to the touch sensor 10 that can detect the touch position in any manner. stomach.

[0069] Referring to FIG. 1a, a touch sensor 10 according to an embodiment displays a pattern of a predetermined shape. The predetermined pattern includes a plurality of driving electrodes TX1 to TXm and a plurality of touch signal detection electrodes R X1 to RXn, and a plurality of LGM interference signal detection electrodes LX1 to LXl.

[0070] In order to operate the touch sensor 10, a drive signal is applied to the plurality of drive electrodes TX1 to TXm. A driving unit 12 for driving the touch surface from the plurality of touch signal detection electrodes RX1 to RXn A signal related to the touch position including information on the amount of change in capacitance caused by the touch A touch signal detector 11a detects touches and touch positions, and a plurality of LGM interference signals The LGM interference signal detector 11b detects a signal related to the LGM interference signal from the detection electrode. That's fine.

[0071] The touch signal detection unit 11a according to the embodiment forms mutual capacitance with any drive electrode. A signal associated with the touch position can be output from a predetermined touch signal detection electrode.

[0072] According to an embodiment, the signal related to the touch position may be any signal generated by the touch of an object. Information on the amount of change in mutual capacitance generated between the drive electrode and a predetermined touch signal detection electrode; Also, the coupling between the object and any driving electrode and / or a predetermined touch signal detection electrode is The information may include information on the capacitance that reduces the amount of change in the mutual capacitance that occurs due to the ).

[0073] On the other hand, the LGM interference signal detector 11b according to the embodiment detects a predetermined LGM interference signal detection voltage. A signal associated with the LGM jamming signal can be output from the pole. The output electrodes do not form mutual capacitance with any of the drive electrodes. However, the small mutual capacitance may be ignored when detecting the presence or absence of a touch. stomach.

[0074] According to an embodiment, a signal related to an LGM interference signal is generated by an object touch. Coupling between the body and any drive electrodes and / or certain LGM jamming signal detection electrodes The capacitance information may include information on a capacitance that reduces the amount of change in the mutual capacitance caused by the .

[0075] The above (1) and (2) can be named LGM interference signals, and the LGM interference signals are generated. The principle on which this is achieved will be described below with reference to FIGS.

[0076] The control unit 13 receives a signal related to the touch position output from the touch signal detection unit 11a and The LGM interference signal output from the LGM interference signal detector 11b is used together with a signal related to the LGM interference signal. A change in the pure mutual capacitance occurring between any drive electrode and a specific touch signal detection electrode can be obtained.

[0077] According to an embodiment, a signal related to a touch position and a signal related to an LGM disturbance signal are used to There are various methods for obtaining the amount of change in mutual capacitance.

[0078] According to a specific embodiment, the control unit 13 receives the LGM interference signal output from the LGM interference signal detection unit 11b. The LGM interference signal generated by the LGM phenomenon is detected using the LGM interference signal and related signals. The control unit 13 uses the derived LGM interference signal component to For example, the LGM interference signal component can be suppressed from the signal detected from the touch signal detection electrode. As a result, a pure mutual electrostatic charge generated between any drive electrode and a given touch signal detection electrode is The amount of change in capacitance can be obtained.

[0079] As a method for suppressing the LGM interference signal component from the signal detected from the touch signal detection electrode, According to a more specific embodiment, the control unit 13 may The LGM interference signal detector 11a detects the LGM interference signal from the signal related to the touch position output from the touch signal detector 11a. 11b is outputted from the LGM interference signal and a signal related thereto is subtracted, and a predetermined The amount of change in the pure mutual capacitance between the touch signal detection electrode and the That is, when an object touches the touch surface, (A) a part of the touch signal detection electrodes The mutual capacitance is formed with any driving electrode, and the capacitance due to coupling is also formed. (B) For some LGM interference detection electrodes, the mutual capacitance with any driving electrode is Since the capacitance is only due to coupling, (A) is subtracted from (B). This makes it possible to obtain only the value of mutual capacitance.

[0080] Alternatively, according to another embodiment, the signal X associated with the touch position and the LGM disturbance signal Y are Linear superposition processing is performed by applying the formula X+bY (a, b: coefficients) In some embodiments, the coefficients a and b are set to the electrodes The above formula can be applied by setting it differently depending on the position.

[0081] In the present invention, the signal detected from the touch signal detection electrode through the above method is It is possible to suppress or even eliminate local noise such as LGM interference signals. This will allow for greater touch sensitivity.

[0082] In FIG. 1a, a plurality of drive electrodes TX1 to TXm of a touch sensor 10 and a plurality of touch signals The detection electrodes RX1 to RXn and the LGM interference signal detection electrodes LX1 to LXl are arranged in an orthogonal array. However, the present invention is not limited to this, and may include a plurality of driving electrodes TX1 RXm, a plurality of touch signal detection electrodes RX1 to RXn, and a plurality of LGM interference signal detection electrodes The poles LX1 to LXl may be arranged in any arrangement, including diagonal lines, concentric circles, and three-dimensional random arrangements. The dimensions of the array can be expressed as n, l, and n+1. m may have the same or different values ​​as positive integers, and may have a magnitude depending on the embodiment. may change.

[0083] A plurality of drive electrodes TX1 to TXm, a plurality of touch signal detection electrodes RX1 to RXn, and The LGM interference signal detection electrodes LX1 to LXl are, as shown in FIG. Specifically, the driving electrodes TX1 to TXm are arranged in a first direction. A plurality of touch signal detection electrodes RX1 to RXn and a plurality of LGM interference signals are provided. The detection electrodes LX1 to LXl may be arranged to extend in a second axis direction intersecting the first axis direction.

[0084] A plurality of drive electrodes TX1 to TXm, a plurality of touch signal detection electrodes RX1 to RXn, and The number of LGM interference signal detection electrodes LX1 to LXl are different from each other as shown in FIG. For example, as shown in FIG. It may be a pattern, such as a diamond pattern as shown in FIG. Here, the layer on which the plurality of driving electrodes TX1 to TXm are formed may be a layer on which the plurality of touch electrodes TX1 to TXm are formed. It may be disposed on the layer on which the signal detection electrodes RX1 to RXn are formed, or may be disposed on the other hand. Between the double layers is an insulating layer to prevent short circuits between the drive electrodes and the receiver electrodes. may be formed.

[0085] For reference, in FIG. 1a, FIG. 2, and FIG. 3, a plurality of touch signal detection electrodes RX1 to RX n are all arranged together, followed by a plurality of LGM interference signal detection electrodes LX1 to LXl. However, according to another embodiment, the touch signal detection electrodes RX1 to RXn At least one of the LGM interference signal detection electrodes LX1 to LXl The two may be arranged alternately with each other, i.e., RX1-LX1-RX2-LX2 may be arranged as follows.

[0086] A plurality of drive electrodes TX1 to TXm, a plurality of touch signal detection electrodes RX1 to RXn, and a plurality of The touch sensor 10 including the LGM disturbance signal detection electrodes LX1 to LXl is shown in FIG. As shown in FIG. 1, the cover layer 100 and the display panel 2 are mounted with the OCAs disposed above and below. As shown in FIG. 4(b), the touch sensor may be placed between the touch sensor 1 and the touch sensor 2. The sensor 10 is disposed on the upper surface of the display panel 200A (for example, It may be disposed directly on top of the encapsulation layer. On the other hand, a plurality of driving electrodes TX1 to TXm and a plurality of touch signal detection electrodes RX1 to RX The touch sensor 10 including the LGM disturbance signal detection electrodes LX1 to LXl shown in FIG. As shown in (c), the inside of the display panel 200A (e.g., Between the encapsulation layer of panel 200A and the organic light-emitting layer may be placed in-cell.

[0087] In (a) to (c) of FIG. 4, the display panel 200A is rigid. It may be an OLED panel or a flexible OLED panel. In rigid OLED panels, the encapsulation layer and the TFT layer are made of glass. In the case of a flexible OLED panel, the encapsulation layer may be a thin film. The TFT layer may be formed of a PI film.

[0088] On the other hand, in (a) to (c) of FIG. 4, the display panel 200A is an OLED panel. However, the present invention is not limited to this, and may be applied to the cases shown in (d) to (f) of Fig. 4. In addition, the display panel 200B may be an LED panel. A backlight unit (BLU) 250 is disposed under the display panel 200B. do.

[0089] Specifically, as shown in FIG. 4(d), the touch sensor 10 is attached to a cover window. The touch sensor 10 may be attached to the glass 100. Although not shown in FIG. 1, the touch sensor 10 is attached to the upper surface of the cover window glass 100 by a film. As shown in FIG. 4(e), the touch sensor 10 may be attached to the display. On-cell Here, the touch sensor 10 may be a color filter glass as shown in the drawing. Although not shown in the drawings, the touch sensor 10 may be formed on the upper surface of the glass. may be formed on the lower surface of the color filter glass. As shown in FIG. 4(f), The touch sensor 10 may be formed in a TFT layer (TFT array) (in-cell). The touch sensor 10 is formed on the upper surface of a TFT layer (TFT array) as shown in the drawing. Although not shown in the drawings, the touch sensor 10 may have a TFT layer (TFT array ) may be formed on the lower surface of the display panel. The driving electrode and one of the receiving electrodes are formed on the 200B color filter glass. The remaining one may be formed in the T layer.

[0090] Referring again to FIG. 1, a plurality of driving electrodes TX1 to TXm, a plurality of touch signal detection electrodes At least one of the poles RX1 to RXn and the plurality of LGM interference signal detection electrodes LX1 to LXl The other is transparent conductive materials (e.g., tin oxide (SnO2) and indium oxide (In2O3) etc.) It is made of ITO (Indium Tin Oxide) or ATO (Antimony Tin Oxide) etc. However, this is merely an example, and a plurality of driving electrodes TX1 to TXm, The LGM interference signal detection electrodes RX1 to RXn and the LGM interference signal detection electrodes LX1 to LXl At least one of them may be formed from another transparent conductive material or from an opaque conductive material. For example, silver ink, copper, nano silver, and carbon nano. and / or CNT (Carbon Nanotube). In addition, the plurality of drive electrodes TX1 to TXm and the plurality of touch signal detection electrodes RX1 to RX n, and at least one of the plurality of LGM interference signal detection electrodes LX1 to LXl is a metal The insulating layer 12 may be implemented as a metal mesh.

[0091] The driving unit 12 can apply a driving signal to the driving electrodes TX1 to TXm. The signal detection unit 11a detects a driving signal applied via the touch signal detection electrodes RX1 to RXn. The mutual static electricity generated between the drive electrodes TX1 to TXm and the touch signal detection electrodes RX1 to RXn By receiving a signal related to the touch location including information regarding the amount of change in capacitance, The presence or absence of a touch and the touch position can be detected. A signal related to the touch position is The driving signals applied to the electrodes TX1 to TXm are coupled to the driving electrodes TX1 to TXm and the touch signal detection electrodes TX1 to TXm. Only signals coupled by mutual capacitance generated between poles RX1 to RXn The noise signal is generated by floating LGM interference. It may include signaling information.

[0092] The touch signal detection unit 11a is connected to each of the touch signal detection electrodes RX1 to RXn via switches. The switch may include a receiver connected to the touch sensor via a switch. It turns on during the time period when the signals of the detection electrodes RX1 to RXn are sensed to detect touch signals. A signal related to the touch position can be output from the receiver through the electrodes RX1 to RXn. .

[0093] For example, referring to FIG. 1b, the receiver includes an amplifier AMP 1-1 ~AMP 1-n And increase Amplifier negative (-) input IN 1-1 ~IN1-n and the amplifier output OUT 1-1 ~OUT1 -n , i.e., in the feedback path. At this time, the positive (+) input terminal IN 2-1 ~IN 2-n is the reference voltage Here, the reference voltage may be, for example, the ground voltage. However, the present invention is not limited to this. In addition, the receiver is connected in parallel with a feedback capacitor. The device may further include a reset switch. The reset switch is effected by the receiver. The current to voltage conversion can be reset. The negative input of the amplifier, IN 1-1 ~IN 1-n are connected to the touch signal detection electrodes RX1 to RXn, respectively, and are associated with the touch position. After receiving the consecutive signals SRX1 to SRXn, the signals can be integrated and converted into voltages.

[0094] The touch signal detection unit 11a converts the integrated data via the receiver into a digital data value. The device may further include an ADC (analog to digital converter) to convert the digital signal. The touch data is input to a processor (not shown) and is used to generate touch information for the touch sensor 10. The touch signal detection unit 11a may be processed to obtain a signal from an ADC together with a receiver. and a processor.

[0095] The touch signal detector 11a according to the embodiment receives the integrated touch position via a receiver. Convert the associated signals SRX1 to SRXn into digital data values ​​SRXD1 to SRXDn. It can be output.

[0096] The touch signal detection unit 11a connects a receiver and an ADC to each of the touch signal detection electrodes. Therefore, each of the touch signal detection electrodes may include a corresponding touch signal. The signal related to the touch position is output and each digital signal is converted to digital data via the receiver and ADC. The data value can be output.

[0097] On the other hand, the LGM interference signal detection unit 11b detects each of the LGM interference signal detection electrodes LX1 to The switch may include a receiver connected to the LX1 through a switch. The LGM interference signal detection electrodes LX1 to LXl are turned on during the time period in which the signals are detected. Thus, the LGM interference signal detection electrodes LX1 to LXl receive signals related to the LGM interference signal. This allows the signal to be output from

[0098] For example, referring to FIG. 1c, the receiver includes an amplifier AMP 2-1 ~AMP 2-l And increase Amplifier negative (-) input IN 3-1 ~IN 3-l and the amplifier output OUT 2-1 ~OUT2 -l , i.e., in the feedback path. At this time, the positive (+) input terminal IN 4-1 ~IN 4-l is the reference voltage age), where the reference voltage may be, for example, the ground voltage. However, the present invention is not limited to this. The receiver may also be connected in parallel with a feedback capacitor. The reset switch may further include a reset switch implemented by the receiver. The current to voltage conversion can be reset by the negative input IN of the amplifier. 3-1 ~I N3-l are connected to the LGM interference signal detection electrodes LX1 to LXl, respectively, After receiving the interference signal and the related signals SLX1 to SLXl, they are integrated and converted into voltages. can.

[0099] The LGM interference signal detector 11b converts the integrated data into digital data via the receiver. The digital signal may further include an ADC (analog to digital converter) to convert the digital signal into a digital value. The digital data is input to a processor (not shown) to generate an LGM interrupt for the touch sensor 10. The LGM interference signal detector 11b may be processed to obtain a signal related to the interference signal. Along with the receiver, it may include an ADC and a processor.

[0100] The LGM interference signal detector 11b according to the embodiment detects LGM interference signals integrated via a receiver. The signals SLX1 to SLXl associated with the interference signal are converted into digital data values ​​SLXD1 to SLXDl. It can be converted and output.

[0101] The LGM interference signal detector 11b detects the LGM interference signal from the receiver and the ADC. Therefore, each of the LGM interference detection electrodes may include a A signal associated with each LGM jamming signal is output and transmitted through the receiver and ADC. Each digital data value can be output.

[0102] The control unit 13 controls the driving unit 12, the touch signal detection unit 11a, and the LGM interference signal detection unit 11. For example, the control unit 13 may perform a function of controlling the operation of the drive control signal b. After generating the driving signal, the driving signal is transmitted to the driving unit 12 and applied to the driving electrode T The control unit 13 may apply the sensing control signal to the inputs X1 to TXm. After generating the signal, the touch signal detector 11a transmits the signal to the touch signal detector 11a for a predetermined period of time. The touch position-related signal is input from the preset touch signal detection electrodes RX1 to RXn. The controller 13 generates a sensing control signal. After the LGM interference signal is generated, it is transmitted to the LGM interference signal detection unit 11b, and the LGM interference signal detection unit 11b detects a predetermined The LGM interference signal is detected by the LGM interference detection electrodes LX1 to LXl at preset times. The input signal can be received to perform a preset function.

[0103] In FIG. 1a, a driving unit 12, a touch signal detection unit 11a, and an LGM interference signal detection unit 11b can detect the presence or absence of a touch on the touch sensor 10 and the touch position. The touch detection unit can be configured by the control unit 1. The touch detection unit may further include a touch sensing IC (touch sensing integration circuit). The driving electrodes T included in the touch sensor 10 may be integrated on a multi-layered circuit (MLC). X1 to TXm, touch signal detection electrodes RX1 to RXn, and LGM interference signal detection electrode LX1 〜LXl may be, for example, a conductive trace and / or printed on a circuit board. The conductive pattern is connected to the touch sensing IC. The driving unit 12 is connected to the touch signal detection unit 11a and the LGM interference signal detection unit 11b. The touch sensing IC is mounted on a circuit board with a conductive pattern printed on it, e.g. The touch panel may be located on a printed circuit board (hereinafter referred to as a touch PCB). The touch sensing IC is mounted on the main board for the operation of the touch input device. Good too.

[0104] As described above in detail, the drive electrodes TX1 to TXm and the touch signal detection electrodes RX1 to R At each intersection of Xn, a certain capacitance Cm is generated, and an object such as a finger touches the touch sensor 1. When the capacitance Cm approaches 0, the value of the capacitance Cm may vary. In FIG. 1a, the capacitance is The mutual capacitance Cm can be expressed as the electrical characteristic of the The touch signal detection unit 11a detects whether or not a touch has been made on the touch sensor 10 and / or the type of the touch. For example, the touch position can be sensed by a two-dimensional plane consisting of the first and second axes. The touch sensor 10 detects whether or not a touch has been made on its surface and / or the position of the touch. This can be done.

[0105] 5 and 6 are diagrams showing a touch input device having the touch sensor shown in FIG. 2 and / or FIG. 1 is output data for explaining why an LGM jamming signal is generated in

[0106] FIG. 5 shows the touch input device shown in FIG. 2 or FIG. 3 in a normal gripping state. When an object touches a specific part of the touch surface of the touch input device, a touch signal detection electrode RX The signal related to the touch position output via RX33 is converted to a digital value (or a signal level). Figure 6 shows the data converted into a tap signal level value. When the touch input device is floating, the touch input device shown in FIG. 2 or FIG. 3 is When an object touches the specific portion of the touch surface, the touch signal detection electrodes RX0 to RX33 The signal related to the touch position outputted through the The data shown is converted into a sigma-based (level) value.

[0107] As shown in Figure 5, in a normal situation, the output digital value is relatively large. The area where digital values ​​having the threshold value are distributed is located in the center. As shown, in the floating state, the digital value in the center portion is compared with FIG. In other words, the digital signal splitting in the center of Fig. 6 is quite different from the digital signal splitting in Fig. In this case, the user is actually typing on the touch input device. Although one touch (or big touch) is made on the touch surface, the touch The input device may not recognize the touch as being made, or may mistakenly recognize the touch as being made ... This is because the LGM interference signal is generated by the coupling between the object and the driving electrode. The normal situation shown in Figure 5 is when the user grips the touch input device. ip), the situation where a finger touches the touch surface of a touch input device, The floating state shown in Figure 6 acts as a ground. The touch input device is placed on a floor or a cradle (e.g., a cradle inside a car). When a user touches the touch surface with a finger, the finger cannot function as a normal ground. Here is an example:

[0108] Hereinafter, with reference to FIGS. 7 to 9, the touch input device shown in FIG. 6 is in a floating state. The digital value (or signal level value) output in this state is different from the normal value. Explain in detail the reason why the digital value (or signal level value) inputted differs from the actual value. Explain objectively.

[0109] 7 and 8 show a touch input device having a touch sensor implemented in a double layer. 1 is a diagram for explaining a principle by which an LGM interference signal is generated when the device is in a floating state. For reference, in the following description, the object may include a finger, a stylus, etc.

[0110] For reference, the normal situation is when the user grips the touch input device. When the finger touches the surface of the touch input device, the finger acts as a normal ground. The situation where the LGM interference signal occurs is as follows: the touch input device is placed on the floor. When the surface of the touch input device is touched while the touch screen is in the floating state, floating occurs. This illustrates a situation where the finger cannot act as a normal ground.

[0111] For example, if you touch the surface of a touch input device with your thumb, the LGM interference signal In a normal situation where no touch signal occurs, a first contact is formed between any driving electrode and a predetermined touch signal detection electrode. Change in mutual capacitance △ Cm1 is detected, but in the situation where an LGM jamming signal occurs, the first Change in mutual capacitance △ The change in the second mutual capacitance, which is smaller than Cm1 △ Cm2 That is, the LGM disturbance signal is detected by detecting the change in the first mutual capacitance. △ The change in the first mutual capacitance is caused by the opposite action to Cm1. △ The size of Cm1 is smaller. It can be defined as a signal that contains information about the capacitance that causes the △Cm1 , △ Cm2 is defined as an absolute value. In other words, LOW GROUND conductivity When a driving electrode is connected to a predetermined touch signal detection electrode through a touch by an object, Coupling between the object and any driving electrode and / or a predetermined touch signal detection electrode. A separate current path is created through the touch panel, and a driving signal is supplied to a predetermined touch signal detection voltage through the path. This causes the LGM interference signal to be generated, which is the opposite of the normal touch signal.

[0112] In addition, in the present invention, the LGM disturbance signal is generated by transmitting the LGM disturbance signal to the object and any driving electrode and / or a predetermined tap. In addition to being formed between the object and any driving electrodes and / or a predetermined It may be formed between the LGM interference signal detection electrode.

[0113] 7 and 8, an arbitrary cell area (a plurality of cells included in the dotted line area) The driving electrodes and the touch signal detection electrodes are included in the If the number of touch points increases, the touch position is finally output as shown in FIG. The digital value corresponding to the signal becomes smaller. In the present invention, the touch area of ​​the thumb is larger than the touch area of ​​the remaining fingers. The case where the LGM interference signal is relatively more abundant is defined as the big touch. .

[0114] As shown in FIG. 7 and FIG. 8, the LGM interference signals C1 and C2 are in a floating state. When the touch surface of the touch input device is touched, the driving electrodes and the touch signal detection In addition to the mutual capacitance Cm between the electrodes, the object and the driving electrodes and / or touch electrodes This is caused by coupling between the signal detection electrodes.

[0115] FIG. 9 shows a touch sensor 10 shown in FIG. 1a that is configured with a single layer. 1 is a diagram showing an example.

[0116] Referring to FIG. 9, the plurality of driving electrodes TX1 to TXm and the plurality of touch electrodes TX2 to TXm shown in FIG. The signal detection electrodes RX1 to RXn and the multiple LGM interference signal detection electrodes LX1 to LXl are For example, one rectangular touch signal detection electrode and / or one rectangular A set of a plurality of driving electrodes TX1 to TXm arranged adjacent to the LGM interference signal detection electrode , may be arranged in a number of rows and columns. Here, one rectangular touch signal detection electrode and and / or the number of drive electrodes adjacent to one rectangular LGM jamming signal detection electrode may be different from that shown in the drawing. As mentioned above, the number of the driving electrodes may be four, but is not limited to this. The number may be three, two, or five or more. The electrodes, the touch signal detection electrodes, and the LGM disturbance signal detection electrodes may be configured in reverse.

[0117] A touch input device having a touch sensor 10 having a single layer structure as shown in FIG. The lipped and floating states show different behaviors, as shown in Figures 5 and 6. This means that the object is placed in the low ground mass (LGM) in the floating state. This is due to.

[0118] More specifically, the driving signal applied through a specific driving electrode drives the LGM state. A plurality of touch signal detection electrodes and / or LGM interference signal detection electrodes are in contact with the object through the body. That is, the object in the LGM state forms a current path. Therefore, the touch signal detection electrodes and / or LGM interference signal detection electrodes in contact with the object In each case, an LGM interference signal having a sign opposite to that of the normal touch signal is output. The reason why the LGM interference signal has a sign opposite to that of the normal touch signal is that the normal touch signal The signal is generated when a certain mutual capacitance Cm is formed between the drive electrode and the touch signal detection electrode. When the object comes into contact, the mutual capacitance Cm decreases, but the LGM interference signal is in a floating state and Since coupling capacitances are generated by body contact, they have opposite signs. Therefore, the LGM disturbance signal generated in the floating state is A digital value (or signal level) corresponding to a signal related to the touch position output through the electrode. This acts as a factor in lowering the signal level.

[0119] A more specific example of a single-layer touch sensor will be described below with reference to FIG. 10 and FIG. 12. When the touch input device having each touch sensor is in a floating state, the output Let's take a closer look at the raw data.

[0120] FIG. 10 shows another example of the touch sensor 10 shown in FIG. 1a formed in a single layer. 1 is a partially enlarged view as an example.

[0121] Referring to FIG. 10, the touch sensor includes a plurality of driving electrodes TX0 to TX3 and a plurality of touch electrodes. Signal detection electrodes RX0 to RX3, RX12 to RX15 and LGM interference signal detection electrode LX4 TX0 to TX3 and a plurality of touch signal detection electrodes RX0 to RX4. RX3, RX12 to RX15 and LGM interference signal detection electrodes LX4 to LX11 are on the same layer. They are arranged in a matrix form.

[0122] A plurality of drive electrodes TX0 to TX3 and a plurality of touch signal detection electrodes RX0 to RX3, RX1 2 to RX15 and the LGM interference signal detection electrodes LX4 to LX11 are made of a transparent conductive material (e.g. , ITO (Indium Tin Oxide) made of tin oxide (SnO2) and indium oxide (In2O3) e) or ATO (Antimony Tin Oxide), etc. However, this is merely an example. The driving electrodes TX0 to TX3, the touch signal detection electrodes RX0 to RX3, RX12 to RX At least one of the LGM interference signal detection electrodes LX4 to LX11 is transparent. The driving electrodes TX0 to TX3 may be formed of a conductive material or an opaque conductive material. , touch signal detection electrodes RX0 to RX3, RX12 to RX15, and LGM interference signal detection electrodes At least one of LX4 to LX11 is silver ink, copper, At least one of nano silver and carbon nanotube (CNT) It may be configured to include any one of the above.

[0123] In addition, the drive electrodes TX0 to TX3, the touch signal detection electrodes RX0 to RX3, RX12 to R At least one of the electrodes X15 and LGM interference detection electrodes LX4 to LX11 is a metal The driving electrodes TX0 to TX3 may be implemented as a metal mesh. Electrodes RX0 to RX3, RX12 to RX15 and LGM interference signal detection electrodes LX4 to LX11 When at least one of the driving electrodes TX0 to TX3 is implemented as a metal mesh, Touch signal detection electrodes RX0 to RX3, RX12 to RX15 and LGM interference signal detection electrode L The wiring connected to at least one of X4~LX11 is also realized with metal mesh. Generally, the driving electrodes TX0 to TX3, the touch signal detection electrodes RX0 to RX3, RX12 to RX1 5 and at least one of the LGM interference signal detection electrodes LX4 to LX11 is connected to the wiring. The driving electrodes TX0 to TX3 and the touch signal detection electrodes RX 0 to RX3, RX12 to RX15 and LGM interference signal detection electrodes LX4 to LX11 When at least one of the electrodes and the wiring is embodied as a single metal mesh, the electrodes and the wiring are / or dead zones where touch positions cannot be detected, such as between electrodes and other electrodes ) is reduced, so that the sensitivity of touch position detection can be improved.

[0124] The touch sensor includes a plurality of touch signal detection electrodes RX0 to RX3, RX12 to RX15 and The LGM interference signal detection electrodes LX4 to LX11 are arranged as a reference. Then, the touch signal detection electrodes RX0 to RX3, RX12 to RX4 are arranged in the rows B1 to B8. The arrangement structure of the RX15 and LGM interference signal detection electrodes LX4 to LX11 will be explained first, and then The arrangement structure of the driving electrodes TX0 to TX3 will be described.

[0125] The touch signal detection electrodes RX0 to RX3, RX12 to RX15 are arranged in a plurality of columns B1, A plurality of LGM interference signal detection electrodes LX4 to LX4 are arranged on each of B2, B3, and B4. X11 is arranged in a plurality of columns B5, B6, B7, and B8. The driving electrodes TX0 to TX3 are the touch signal detection electrodes RX0 to RX3, RX12 to RX15. and a plurality of rows B1, B2, B3, in which the LGM interference signal detection electrodes LX4 to LX11 are arranged. Between B4, B5, B6, B7, and B8, on the outside of the first row B1, and on the outside of the eighth row B8 A number of columns A1, A2, A3, A4, A5, A6, A7, A8, and A9 are arranged in a number of rows. .

[0126] Touch signal detection electrodes RX0 to RX3, RX12 to RX15 and LGM interference signal detection With respect to the electrodes LX4 to LX11, the two adjacent driving electrodes on both sides are the same. That is, each of the touch signal detection electrodes RX0 to RX3, RX12 to RX15 and the LGM interference signal detection The numbers of the two adjacent driving electrodes on both sides of the output electrodes LX4 to LX11 are the same. Here, if the two driving electrodes are the same or the numbers of the two driving electrodes are the same, This means that they are electrically connected via wiring.

[0127] The touch sensor includes a plurality of touch signal detection electrodes RX0 to RX3, RX12 to RX15 and The LGM interference signal detection electrodes LX4 to LX11 and a plurality of identical drive electrodes are arranged in a predetermined array. A set is composed of multiple sets arranged repeatedly in the row direction. It is okay to do so.

[0128] One set includes a plurality of different touch signal detection electrodes RX0 to RX3, The electrodes RX12 to RX15 and the LGM interference signal detection electrodes LX4 to LX11 may be included. For example, one set includes eight touch signal detection electrodes RX0 to RX3, RX12 to RX 15 and eight LGM interference signal detection electrodes LX4 to LX11. Signal detection electrodes RX0 to RX3, RX12 to RX15 and eight LGM interference signal detection electrodes LX The eight touch signal detection electrodes RX0 to RX11 may be arranged in a predetermined array. 3. RX12 to RX15 and eight LGM interference signal detection electrodes LX4 to LX11 are The first row contains electrodes numbered 0 through 7. RX0, RX1, RX2, RX3, LX4, LX5, LX6, LX7 in that order from left to right In the second row, electrodes numbered 8 to 15 are arranged as LX8, LX9, LX10, ,LX11,RX12,RX13,RX14,RX15 are arranged from right to left in this order. .

[0129] On the other hand, the touch sensor includes a plurality of drive electrodes TX0 to TX3. The drive electrodes TX0 to TX3 may include a 0th drive electrode TX0 to a 3rd drive electrode TX3. Then, each drive electrode may be arranged so that the following arrangement condition is satisfied.

[0130] The plurality of drive electrodes TX0 to TX3 are arranged so as to satisfy the following conditions: 1) In the row direction Based on two consecutive touch signal detection electrodes RX0 and RX15, 2) Two identical driving electrodes TX0 are arranged on the left and right sides of the row direction. Two different touch signal detection electrodes RX0 and RX15 and two different LGM interferences With the signal detection electrodes LX4 and LX11 as references, the two driving electrodes TX0 and TX11 facing each other are 3) The driving electrodes TX0 to TX3 arranged in the row direction have different numbers. The driving electrodes TX0 to TX3 arranged in the column direction have the same number. The length (horizontal length) of the driving electrodes arranged at both ends of each set is the same as the length ( The length may be half of the width of the board, but is not limited to this. The length may be the same. good.

[0131] In the case of FIG. 10, according to the embodiment, a drive signal is applied to a predetermined drive electrode TX0. When an object touches the electrodes RX0 to RX3, RX12 to RX1 5, a signal related to the touch position is detected, and a predetermined LGM interference signal detection electrode LX4 to LX 11 detects a signal related to an LGM interference signal, and detects the LGM from a signal related to a touch position. Calculate the value of the pure mutual capacitance change by subtracting the disturbance signal and the associated signal. can be done.

[0132] However, in relation to FIG. 10, the touch signal detection electrodes and the LGM disturbance signal detection electrodes are physically However, according to another embodiment, one of the touch signal detection electrodes may be The principle described above in FIG. 10 is the same / similar when the part is used as an LGM interference signal detection electrode. may be applied to.

[0133] Also, in FIG. 10, a row of a plurality of touch signal detection electrodes is arranged first, followed by a plurality of L Although the example shows that the rows of GM interference signal detection electrodes are arranged (or opposite to each other), The row of the signal detection electrodes and the row of each LGM interference signal detection electrode are alternately arranged (RX-LX-R X-LX).

[0134] 11(a) and (b) show a touch input having the structure of the touch sensor shown in FIG. When an object such as a thumb touches a specific part of the touch surface of the force device, the force input device This is the raw data that is output.

[0135] Specifically, FIG. 11(a) shows a touch sensor having the structure of the touch sensor shown in FIG. This is raw data output when the input device is gripped. (b) of FIG. 11 shows The touch input device having the touch sensor structure shown in FIG. 10 is in a floating state. This is the raw data that is output when the

[0136] The raw data in Figure 11 (a) and (b) go through the following remapping process: The data may be derived from the plurality of drive electrodes of the touch sensor shown in FIG. When signals are applied sequentially, a predetermined touch position is detected from each of the plurality of touch signal detection electrodes. The output touch position related signal is the same as that shown in FIG. The touch signal detection unit 11a detects a digital value (or is converted to a signal level value) and output. Then, the touch signal detection shown in FIG. 1a is The unit 11a outputs digital values ​​corresponding to each position on the touch surface of the touch input device. Through this mapping process, the following is obtained: The raw data in (b) may be output.

[0137] The numbers in the raw data in Figure 11 (a) and (b) may be expressed as integers, If the integer is equal to or greater than a preset reference integer value (e.g., +65), the touch input The touch signal detection unit 11a of the device detects whether an object has touched the part where the number is located. It can be distinguished (or recognized) as something that is not an object.

[0138] Referring to Fig. 11(a), in the grip state (normal situation), The data values ​​distributed in the part have relatively larger integer values ​​than the other parts. Referring to (b), in the floating state, the digital value written in the middle part is 11(a) in a different aspect. Specifically, the middle portion is generally the same as that in FIG. has a relatively low integer value compared to , and furthermore, a part of the middle part has a negative (-) value. This is due to LGM interference signals that occur in a floating state. As a result, the touch input device treats the intermediate portion as two touches instead of one touch. It may be misinterpreted as not having any touch in the middle portion.

[0139] FIG. 12 shows a touch sensor 10 shown in FIG. 1 formed in a single layer. FIG. 1a is a partially enlarged view of another example of a touch signal detection device. In the case where the output electrode and the LGM interference signal detection electrode are physically separated from each other, It was assumed that, according to the arrangement of FIG. 12, some of the touch signal detection electrodes are LGM-interfering. It may also function as a signal detection electrode.

[0140] Referring to FIG. 12, the touch sensor includes a plurality of driving electrodes TX1 to TXm and a plurality of touch electrodes. The touch panel includes a plurality of drive electrodes TX1 to TXm and a plurality of touch signal detection electrodes RX1 to RXn. The signal detection electrodes RX1 to RXn are arranged in a matrix on the same layer.

[0141] The plurality of drive electrodes TX1 to TXm and the plurality of touch signal detection electrodes RX1 to RXn are transparent. Conductive materials (e.g., tin oxide (SnO2) and indium oxide (In2O3)) Alternatively, the insulating layer 11 may be made of indium tin oxide (ATO) or antimony tin oxide (ATO). However, this is merely an example, and the driving electrodes TX1 to TXm and the touch signal detection electrodes RX1 RXn may be formed of other transparent conductive materials or opaque conductive materials. The moving electrodes TX1 to TXm and the touch signal detection electrodes RX1 to RXn are made of silver ink. ), copper, nano silver, and carbon nanotubes (CNTs) The optical fiber 10 may be configured to include at least one of the optical fibers 101 and 102.

[0142] The drive electrodes TX1 to TXm and the touch signal detection electrodes RX1 to RXn are made of metal. The driving electrodes TX1 to TXm and the touch signal detection electrodes TX1 to TXm may be implemented as a metal mesh. When the electrodes RX1 to RXn are realized as a metal mesh, the driving electrodes TX1 to TXm and the touch electrodes RX1 to RXn are realized as a metal mesh. The wiring connected to the signal detection electrodes RX1 to RXn may also be realized by a metal mesh. The drive electrodes TX1 to TXm and the touch signal detection electrodes RX1 to RXn are integrated with the wiring. The driving electrodes TX1 to TXm and the touch signal detection electrodes RX1 to R When Xn and the wiring are embodied as a single metal mesh, the electrodes and the wiring and / or the electrodes There is little dead zone between the electrode and other electrodes where the touch position cannot be detected. As a result, the sensitivity of touch position detection can be further improved.

[0143] The touch sensor is arranged based on a plurality of touch signal detection electrodes RX1 to RXn. Therefore, the arrangement structure of the plurality of touch signal detection electrodes RX1 to RXn will be described first below. Next, the arrangement structure of the plurality of driving electrodes TX1 to TXm will be described.

[0144] The touch signal detection electrodes RX1 to RXn are arranged in a plurality of columns A1, A2, A3, A4, A A plurality of driving electrodes TX1 to T Xm represents a plurality of columns A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20, A21, A22, A23, A24, A25, A26, A27, A28, A29, A30, A31, A32, A Between A4, A5, A6, A7, and A8, outside the first row A1, and outside the eighth row A8 Multiple columns B1, B2, B3, B4, B5, B6, B7, B8, B9, B10, B11, B 12, where the row of drive electrodes is row A and the row of touch signal detection electrodes is row B. The present invention may be applied in the same or similar manner even when the touch signal detection electrodes are arranged in row B. Based on each of the touch signal detection electrodes RX1 to RXn of the electrodes RX1 to RXn, The two drive electrodes TX1 to TXm have the same characteristics. That is, each touch signal detection electrode Based on RX1 to RXn, the numbers of the two adjacent driving electrodes TX1 to TXm on both sides are the same. Here, if the two driving electrodes TX1 to TXm are the same, or if the two driving electrodes T The fact that the numbers X1 to TXm are the same means that they are electrically connected through wiring. In other words, they can form the same channel.

[0145] The touch sensor includes a plurality of touch signal detection electrodes RX1 to RXn and a plurality of drive electrodes TX1. TXm are arranged in a predetermined sequence. The electrodes may be arranged repeatedly in the horizontal and vertical directions.

[0146] One set includes a plurality of different touch signal detection electrodes RX1 to RXn. For example, one set may include eight receiving electrodes RX0 to RX7. The eight receiving electrodes RX0, RX1, RX2, RX3, RX4, R The eight receiving electrodes RX0 to RX7 may be arranged in a predetermined array. The touch signal detection electrodes RX1 to RXn are arranged in four consecutive columns A1, A2, A3, and A4 in the row direction. Therefore, each of the four columns has two receiving electrodes, may be placed.

[0147] A plurality of touch signal detection electrodes having consecutive numbers are arranged in each column. The arrangement order of the odd-numbered columns A1 and A3 may be the opposite to that of the even-numbered columns A2 and A4. For example, in the first column A1, the touch signal detection electrodes RX0, RX1 having consecutive numbers are arranged in the order from the top. The second column A2 includes touch signal detection electrodes RX2, RX3 are arranged in order from bottom to top, and the third column A3 has touch signal detectors with consecutive numbers. The output electrodes RX4 and RX5 are arranged in order from top to bottom, and the fourth column A4 is provided with consecutive numbers. The touch signal detection electrodes RX6 and RX7 are arranged in order from bottom to top. However, a plurality of different touch signal detection electrodes included in one set may be arranged in rows or columns. may not be arranged in order in the column direction, but may be arranged randomly.

[0148] On the other hand, the touch sensor includes a plurality of drive electrodes TX1 to TXm. For example, The electrodes TX1 to TXm may include a 0th drive electrode TX0 to a 15th drive electrode TX15. Then, each drive electrode may be arranged so that the following arrangement condition is satisfied.

[0149] The driving electrodes TX1 to TXm are arranged so as to satisfy the following conditions: Four different drive electrodes are arranged on the left side of the signal detection electrodes RX1 to RXn. On the right side, four different driving electrodes are arranged. 2) Each touch signal detection electrode RX1 With respect to the driving electrodes TX1 to TXm, two driving electrodes TX1 to TXm facing each other have the same number. 3) Three driving electrodes with the same number are arranged consecutively in the row direction. 4) The receiving electrodes in the even-numbered rows The eight drive electrodes adjacent to the transmit electrode RX1 are the eight drive electrodes adjacent to the receive electrode RX0 in the odd-numbered row. 5) The driving electrodes arranged at both ends of each set are arranged symmetrically with the driving electrodes. The length (horizontal length) of the driving electrode arranged in the center of each set of poles is the same as the length ( It is half the length (horizontal length).

[0150] In the case of FIG. 12, the A1 row has the 1-1 touch signal detection electrode RX0 and the 1-2 touch signal The detection electrode RX1 may be arranged in the second electrode row B2. 0, the corresponding 2-1 drive electrode TX0, the 2-2 drive electrode TX7, and the 2-3 drive electrode TX1. Adjacent to the electrode TX8, the 2-4 driving electrode TX15, and the 1-2 touch signal detection electrode RX1 The corresponding 2-1' drive electrode TX15, 2-2' drive electrode TX8, and 2-3' drive electrode TX15 are The electrode TX7 and the 2-4' drive electrode TX0 may be disposed. X0 and the 2-4' drive electrode TX0 may be electrically connected using the 2-1 trace, The 2-2 drive electrode TX7 and the 2-3' drive electrode TX7 are electrically connected using the 2-2 trace. , and the 2-3 drive electrode TX8 and the 2-2′ drive electrode TX8 are connected to the 2-3 train. The 2-4 driving electrode TX15 and the 2-1' driving electrode TX15 may be electrically connected using trace 2-4. And touch 1-1 Mutual capacitance may occur between the signal detection electrode RX0 and the 2-1st drive electrode TX0. Between the 1-2 touch signal detection electrode RX1 and the 2-1' drive electrode TX15, Similarly, capacitance may occur between the first-first touch signal detection electrode RX0 and the first-second touch signal detection electrode RX1. Between the 2-2 driving electrode TX7 and the 1-1 touch signal detection electrode RX0 and the 2-3 driving electrode T X8, and between the 1-1 touch signal detection electrode RX0 and the 2-4 drive electrode TX15 Mutual capacitance may occur between the first and second touch signal detection electrodes RX1 and 2-2'. between the first-2 touch signal detection electrode RX1 and the second-3' driving electrode TX7, During this time, a mutual static charge is also generated between the 1-2 touch signal detection electrode RX1 and the 2-4' drive electrode TX0. Capacitance may occur.

[0151] That is, in the case of FIG. 12, the first touch signal detection electrode RX0 is connected to the second electrodes TX0 and TX7. , TX8, and TX15 are arranged so that at least two of them are adjacent to each other. The second electrodes TX0, TX7, TX8, and TX1 are connected to the other first touch signal detection electrodes RX1. 5 are arranged so that at least two other of the 5 are adjacent to each other, At least two electrodes and the other at least two electrodes having the same number are one By connecting them using traces, as shown in Figure 9, Compared to a structure in which all the driving electrodes are connected to different traces, It will be possible to reduce

[0152] In addition, in FIG. 12, a part of the touch signal detection electrodes is used as an LGM interference signal detection electrode. However, according to another embodiment, the touch signal detection electrodes and the LGM interference Even when the interference signal detection electrode and the interference signal detection electrode are physically separated from each other, the above-mentioned method shown in FIG. The same principles may be applied to similar / similar cases.

[0153] In the latter, a row of multiple touch signal detection electrodes is placed first, followed by multiple LGMs. The rows of the interference signal detection electrodes are arranged (or opposite to each other) so that each row of the touch signal detection electrodes and each row of LGM interference detection electrodes alternate with each other (like RX-LX-RX-LX) In this case, the principles described above with reference to FIG. 12 may be applied in the same / similar manner.

[0154] FIG. 13 is a diagram showing a touch input device having the touch sensor structure shown in FIG. This is the raw data when an object such as a thumb touches a specific part of the surface. Specifically, FIG. 13 shows a flow diagram of a touch input device having the touch sensor structure shown in FIG. This is the raw data when the device is in a tagged state.

[0155] Referring to FIG. 13, the digital value ( Or, it is confirmed that the level value has a relatively large integer value compared to other parts.

[0156] Compare the raw data shown in Figure 13 with the raw data shown in Figure 11(b). For example, the structure of the touch sensor shown in FIG. 12 in the floating state is similar to the touch sensor shown in FIG. It can be seen that the LGM improvement effect is even greater than that of the sensor structure.

[0157] FIG. 14 provides a schematic comparison of the LGM performance of the touch sensors shown in FIGS. 10 and 12. This is a graph.

[0158] Referring to FIG. 14, the touch sensor shown in FIG. 10 has a touch area in the grip state. The relatively large level value in the area is about +250. In the floating state, the relatively large level value has a value between -100 and +100. do.

[0159] On the other hand, the touch sensor shown in FIG. 12 has a level value within the touch area in the grip state. The relatively large level value of the flow is about +250. In the ting state, the relatively large level value has a value between +70 and +170.

[0160] According to the graph of FIG. 14, the touch input device having the touch sensor shown in FIG. In the floating state, it is difficult to recognize the exact touch and touch position. The touch input device having the touch sensor shown has a relatively large floating state. Since the touch input device detects the presence or absence of a touch and the touch position, the touch input device detects the presence or absence of a touch and the touch position. However, even in the floating state, the same as in the gripped state, In the grip state, a relatively large level value (+250) is output. The output level is set to be similar to the relatively large level value (+250). The touch input device is extremely sensitive to the presence or absence of touch and / or the position of the touch. It is important.

[0161] In the following, not only the touch sensor (1 layer) in FIG. 12 but also the touch sensors in FIGS. 9 and 10 will be described. 2 and 3, which have a single layer touch sensor and a double layer touch sensor, respectively. The touch input device outputs a signal level value in the floating state, whereas the touch input device outputs a signal level value in the grip state. The signal level value can be output (Floating (final data)) in the same or similar manner as the signal level value to be A touch sensor and a touch input device including the same will be described in detail with reference to the drawings. do.

[0162] The touch sensor may have a single layer or a double layer structure, as shown in (a) to (e) of FIG. The method described below may be applied to any one of the following cases. The present invention may be applied to any known touch sensor and touch input device including the same. Although not shown in a separate drawing, a touch sensor with a double-layer structure has a plurality of driving electrodes and a plurality of One of the receiving electrodes is disposed between the touch surface and the display panel, and the other One may be located inside the display panel.

[0163] Further, the touch input device having the touch sensor shown in FIG. The embodiments of the present invention are not limited to force devices, but may be used in other applications not shown herein. The present invention may also be applied to a touch input device having a touch sensor with a single layer or a double layer structure. The present invention is also applicable to other touch input devices having touch sensors, for example, those shown in FIGS. 15 and 16. may be used.

[0164] FIG. 15 shows a touch sensor 10 shown in FIG. 1a formed in a single layer. FIG. 1a is a partially enlarged view of a touch panel. The signal detection electrode and the LGM interference signal detection electrode are separate electrodes that are physically separated from each other. In FIG. 15, it is assumed that some of the touch signal detection electrodes are LGM interference detection electrodes. It may also function as a pole.

[0165] Referring to FIG. 15, the touch sensor according to the embodiment includes a plurality of drive electrodes TX and a plurality of The touch signal detection electrodes RX include a plurality of drive electrodes TX and a plurality of touch signal detection electrodes RX. They are arranged in a matrix form.

[0166] The plurality of driving electrodes TX and the plurality of touch signal detection electrodes RX are made of a transparent conductive material (e.g., ITO (Indium Tin Oxide) is made of tin oxide (SnO2) and indium oxide (In2O3). ) or ATO (Antimony Tin Oxide), etc. However, this is merely an example. The driving electrodes TX and the touch signal detection electrodes RX may be made of other transparent conductive materials or non-transparent conductive materials. For example, the driving electrodes TX and the touch signal detection electrodes RX may be made of silver. Silver ink, copper, nano silver, and carbon nanotubes (CNT: Carbon Nanotube) may be included.

[0167] The drive electrodes TX and the touch signal detection electrodes RX are made of a metal mesh. The driving electrodes TX and the touch signal detection electrodes RX may be implemented as a metal mesh. In this case, the wiring connected to the driving electrodes TX and the touch signal detection electrodes RX is also made of a metal mesh. The driving electrodes TX and the touch signal detection electrodes RX and the wiring may be formed by a metal plating. The driving electrodes TX and the touch signal detection electrodes RX may be integrated with wiring. When the wiring is realized as a mesh, the wiring between the electrodes and / or between the electrodes and other electrodes, etc. The dead zone where the touch position cannot be detected is reduced, making it easier to detect the touch position. The sensitivity can be further improved.

[0168] The touch sensor according to the embodiment is arranged based on a plurality of drive electrodes TX. Therefore, the arrangement structure of the driving electrodes TX arranged in a plurality of rows B1 to B16 will be described first below. Next, the arrangement structure of the plurality of touch signal detection electrodes RX will be described.

[0169] The plurality of drive electrodes TX are arranged in a plurality of columns B1, B2, B3, B4, B5, B6, B7, B8. ,B9,B10,B11,B12,B13,B14,B15,B16 are each distributed multiple Here, the plurality of touch signal detection electrodes RX are arranged on the plurality of driving electrodes TX. Columns B1,B2,B3,B4,B5,B6,B7,B8,B9,B10,B11,B12, Between B13, B14, B15, and B16, outside of the 1st row B1, and outside of the 16th row B16 Multiple columns A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A A11, A12, A13, A14, A15, and A16 are arranged in multiple. However, the driving electrodes The present invention is the same / similar even when the row of the touch signal detection electrodes is row A and the row of the touch signal detection electrodes is row B. may be applied to.

[0170] Based on each of the plurality of driving electrodes TX, two adjacent touch signals on both sides of the driving electrodes TX are The signal detection electrodes RX have different characteristics. The numbers of the two touch signal detection electrodes RX adjacent to each other on the same side are different from each other. The touch signal detection electrodes RX are different, or the numbers of the two touch signal detection electrodes RX are different. This means that they are connected to different traces.

[0171] The plurality of drive electrodes TX are 32 electrodes, ie, a 0th drive electrode TX0 to a 31st drive electrode TX31. The first set (set 1) arranged in one array, and 32 drive electrodes TX0 to TX31 are The moving electrodes TX31 include a second set (set 2) arranged in a second array.

[0172] The first set (set 1) may be provided with two consecutive pixels in the row direction and two pixels in the column direction, The first set (set 1) located in the even-numbered rows is the first set (s et 1) may be symmetrical.

[0173] The second set (set 2) has two consecutive rows and two columns, but the even numbers The second set (set 2) located in the odd-numbered row is the second set (set 2) located in the odd-numbered row. It may be symmetrical with

[0174] And, the plurality of second sets may be disposed on one side of the plurality of first sets.

[0175] The first array of the first set (set 1) includes 32 drive electrodes TX0 to TX31. The TX31 is arranged in four consecutive columns in the row direction, with the first column numbered 0 to 7. The driving electrodes are numbered TX0, TX1, TX2, TX3, TX4, TX5, and TX6. , TX7 in the order from top to bottom, and the second row has driving electrodes numbered from 8 to 15. The order is TX15, TX14, TX13, TX12, TX11, TX10, TX9, TX8. In the third row, the driving electrodes numbered 16 to 23 are arranged in a row TX16. ,TX17,TX18,TX19,TX20,TX21,TX22,T23 in that order from top to bottom In the fourth row, the driving electrodes numbered 24 to 31 are arranged downwards, and are designated as TX31, TX3 Arranged from top to bottom in the order of 0, TX29, TX28, TX27, TX26, TX25, T24 will be done.

[0176] The second array of the second set (set 2) includes 32 drive electrodes TX0 to TX31. The TX31 is arranged in four consecutive columns in the row direction, with the first column having 16 to 2 The driving electrodes numbered up to 3 are TX16, TX17, TX18, TX19, TX20, The first row is arranged in the order of TX21, TX22, and T23, and the second row is arranged in the order of 24 to 31. The driving electrodes having the numbers are TX31, TX30, TX29, TX28, TX27, and TX26. , TX25, T24 in that order from top to bottom, and the third column has numbers from 0 to 7. The driving electrodes are arranged in the order of TX0, TX1, TX2, TX3, TX4, TX5, TX6, and TX7. In the fourth row, the driving electrodes numbered 8 to 15 are arranged as TX15, TX Arranged from top to bottom in the order of 14, TX13, TX12, TX11, TX10, TX9, TX8 will be done.

[0177] On the other hand, the touch sensor according to the embodiment includes a plurality of touch signal detection electrodes RX. For example, the plurality of touch signal detection electrodes RX are the 0th touch signal detection electrodes RX0 to the 15th touch signal detection electrodes RX1 to RX2. Each touch signal detection electrode RX15 may include a touch signal detection electrode RX15. Here, each touch signal detection electrode is arranged such that the following arrangement condition is satisfied: The components may be arranged to satisfy the above requirements.

[0178] The touch signal detection electrodes RX are arranged to satisfy the following conditions: Based on eight different driving electrodes TX arranged in succession in the direction of the touch panel, one touch signal detection electrode is located on the left side. 2) A pair of different electrodes are arranged in succession in the column direction. Based on eight driving electrodes TX, two touch signal detection electrodes RX 3) Two different touch signal detection electrodes RX in the column direction have different numbers. are arranged in a row direction, and eight different touch signal detection electrodes RX are repeatedly arranged in a row direction. 4) The length (horizontal length) of the touch signal detection electrodes arranged in the column direction on both sides is The length (horizontal length) of the touch signal detection electrode may be the same as that of the touch signal detection electrode of the first embodiment, but is not limited to this. Instead, it may be half the length (horizontal length) of the other touch signal detection electrodes.

[0179] In the case of FIG. 15, according to the embodiment, a touch signal output from a certain touch signal detection electrode From the signal value, a predetermined touch signal detection electrode other than the LGM interference signal detection electrode is used. By subtracting the output signal value, it is possible to obtain only the pure change in mutual capacitance. can.

[0180] According to another embodiment, the touch signal detection electrodes and the LGM disturbance signal detection electrodes are mutually exclusive. Even in the case of physically separated and distinct electrodes, the characteristics described above in FIG. 15 are the same / similar. may be applied to.

[0181] In the latter, a row of multiple touch signal detection electrodes is placed first, followed by multiple LGMs. The rows of the interference signal detection electrodes are arranged (or opposite to each other) so that each row of the touch signal detection electrodes and each row of LGM interference detection electrodes alternate with each other (like RX-LX-RX-LX) In this case, the features described above in FIG. 15 may be applied in the same / similar manner.

[0182] FIG. 16 shows a touch sensor 10 shown in FIG. 1a formed in a single layer. FIG. 1a is a partially enlarged view of a touch panel. In the case where the signal detection electrode and the LGM interference signal detection electrode are separate electrodes physically separated from each other, In FIG. 16, it is assumed that some of the touch signal detection electrodes are LGM interference signal detection electrodes. It may also function as.

[0183] Referring to FIG. 16, the touch sensor according to the embodiment includes a plurality of drive electrodes TX and a plurality of A plurality of drive electrodes TX and a plurality of touch signal detection electrodes RX are arranged in a matrix form.

[0184] The plurality of driving electrodes TX and the plurality of touch signal detection electrodes RX are made of a transparent conductive material (e.g. , ITO (Indium Tin Oxide) made of tin oxide (SnO2) and indium oxide (In2O3) e) or ATO (Antimony Tin Oxide), etc. However, this is merely an example. The driving electrodes TX and the touch signal detection electrodes RX may be made of other transparent conductive materials or non-transparent conductive materials. For example, the driving electrodes TX and the touch signal detection electrodes RX may be made of silver. Silver ink, copper, nano silver, and carbon nanotubes (CNT: Carbon Nanotube) may be included.

[0185] In addition, the drive electrodes TX and the touch signal detection electrodes RX are made of metal mesh. The driving electrodes TX and the touch signal detection electrodes RX may be implemented as a metal mesh. In this case, the wiring connected to the driving electrodes TX and the touch signal detection electrodes RX is also made of a metal mesh. The driving electrodes TX and the touch signal detection electrodes RX and the wiring may be formed by a metal plating. The driving electrodes TX and the touch signal detection electrodes RX may be integrated with wiring. When the wiring is realized as a mesh, the wiring between the electrodes and / or between the electrodes and other electrodes, etc. The dead zone where the touch position cannot be detected is reduced, making it easier to detect the touch position. The sensitivity can be further improved.

[0186] The touch sensor according to the embodiment is arranged based on a plurality of drive electrodes TX. Therefore, in the following, the arrangement structure of the driving electrodes TX arranged in the B1 to B16 columns will be described first. The arrangement structure of the plurality of touch signal detection electrodes RX will be described below.

[0187] The plurality of drive electrodes TX are arranged in a plurality of columns B1, B2, B3, B4, B5, B6, B7, B8. ,B9,B10,B11,B12,B13,B14,B15,B16 are each distributed multiple Here, the plurality of touch signal detection electrodes RX are arranged on the plurality of driving electrodes TX. Columns B1,B2,B3,B4,B5,B6,B7,B8,B9,B10,B11,B12, Between B13, B14, B15, and B16, outside of the 1st row B1, and outside of the 16th row B16 Multiple columns A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A A11, A12, A13, A14, A15, and A16 are arranged in multiple. However, the driving electrodes The present invention is the same / similar even when the row of the touch signal detection electrodes is row A and the row of the touch signal detection electrodes is row B. may be applied to.

[0188] Based on each of the plurality of driving electrodes TX, two adjacent touch signals on both sides of the driving electrodes TX are The signal detection electrodes RX have different characteristics. The numbers of the two touch signal detection electrodes RX adjacent to each other on the same side are different from each other. The touch signal detection electrodes RX are different, or the numbers of the two touch signal detection electrodes RX are different. This means that they are connected to different traces.

[0189] The plurality of drive electrodes TX are 32 electrodes, ie, a 0th drive electrode TX0 to a 31st drive electrode TX31. The set includes a set arranged in an array, where the set is a set of multiple row-wise and column-wise The sets located in the even-numbered rows may be arranged in a repetitive manner. It may be symmetrical with the set located.

[0190] The first array of each set includes 32 drive electrodes TX0 to TX31. The 31s are arranged in four consecutive columns, with the first column containing the numbers 0 through 7. The driving electrodes having the numbers are TX0, TX1, TX2, TX3, TX4, TX5, TX6, T X7 in the order from top to bottom, and the second row has driving electrodes numbered from 8 to 15. The top are X15, TX14, TX13, TX12, TX11, TX10, TX9, and TX8. In the third row, the driving electrodes numbered 16 to 23 are arranged downwards, From top to bottom: X17, TX18, TX19, TX20, TX21, TX22, T23 In the fourth row, the driving electrodes numbered 24 to 31 are arranged as TX31, TX30, Arranged from top to bottom in the order of TX29, TX28, TX27, TX26, TX25, and T24. do.

[0191] On the other hand, the touch sensor according to the embodiment includes a plurality of touch signal detection electrodes RX. For example, the plurality of touch signal detection electrodes RX are the 0th touch signal detection electrodes RX0 to the 31st touch signal detection electrodes RX1 to RX2. Each touch signal detection electrode RX31 may include a touch signal detection electrode RX31. Here, each touch signal detection electrode is arranged such that the following arrangement condition is satisfied: The components may be arranged to satisfy the above requirements.

[0192] The touch signal detection electrodes RX are arranged so as to satisfy the following conditions: Based on eight consecutive, different driving electrodes TX, one touch signal detection electrode is located on the left side. 2) A pair of different electrodes are arranged in succession in the column direction, and one touch signal detection electrode is arranged on the right side of the pair of electrodes. Based on the eight drive electrodes TX, the two touch signal detection electrodes RX facing each other are 3) Two different touch signal detection electrodes are arranged in a column direction. In the row direction, 16 different touch signal detection electrodes are repeatedly arranged. The length (horizontal length) of the touch signal detection electrodes arranged in the column direction at the side edge is The length may be the same as the length (horizontal length) of the signal detection electrode, but is not limited to this. It may be half the length (horizontal length) of the other touch signal detection electrodes.

[0193] In the case of FIG. 16, according to the embodiment, a touch signal output from a predetermined touch signal detection electrode From the signal value obtained by the LGM interference signal detection electrode, By subtracting the output signal value, it is possible to obtain only the pure change in mutual capacitance. can.

[0194] According to another embodiment, the touch signal detection electrodes and the LGM disturbance signal detection electrodes are mutually exclusive. Even in the case of physically separate electrodes, the characteristics described above in FIG. 16 are the same / similar. may be applied.

[0195] In the latter, a row of multiple touch signal detection electrodes is placed first, followed by multiple LGMs. The rows of the interference signal detection electrodes are arranged (or opposite to each other) so that each row of the touch signal detection electrodes and each row of LGM interference detection electrodes alternate with each other (like RX-LX-RX-LX) In this case, the features described above in FIG. 16 may be applied in the same / similar manner.

[0196] FIG. 17 is an exemplary conceptual diagram of a touch sensor according to an embodiment of the present invention. However, in FIG. 1a, the touch signal detection electrodes and the LGM disturbance signal detection electrodes are mutually Although it has been assumed that the electrodes are physically separate, in FIG. 17, the touch signal detection electrodes Some of these may function as LGM interference signal detection electrodes.

[0197] Referring to FIG. 17, a touch sensor according to an embodiment of the present invention includes a plurality of drive electrodes TX 0 to TX7 and a plurality of touch signal detection electrodes RX0 to RX7. Here, a plurality of driving electrodes TX0 to TX7 and the plurality of touch signal detection electrodes RX0 to RX7 are the same as those shown in FIG. It may be formed in a single layer, as shown in FIG. 2 or in a double layer, as shown in FIG. 3. It may also be something that has been

[0198] A device including a plurality of drive electrodes TX0 to TX7 and a plurality of touch signal detection electrodes RX0 to RX7. The touch sensor according to the embodiment of the present invention includes a plurality of drive electrodes TX0 to TX7 and a plurality of touch signals. The mutual capacitance Cm is formed between the signal detection electrodes RX0 to RX7 and the mutual capacitance and a node that does not form a capacitance Cm.

[0199] For example, in FIG. 17, the nodes forming the mutual capacitance Cm are (Tx0, Rx0), (Tx0,Rx1), (Tx0,Rx2), (Tx0,Rx3), (Tx1, Rx4), (Tx1,Rx5), (Tx1,Rx6), (Tx1,Rx7), (Tx2, Rx0), (Tx2,Rx1), (Tx2,Rx2), (Tx2,Rx3), (Tx3, Rx4), (Tx3,Rx5), (Tx3,Rx6), (Tx3,Rx7), (Tx4, Rx0), (Tx4,Rx1), (Tx4,Rx2), (Tx4,Rx3), (Tx5, Rx4), (Tx5,Rx5), (Tx5,Rx6), (Tx5,Rx7), (Tx6, Rx0), (Tx6,Rx1), (Tx6,Rx2), (Tx6,Rx3), (Tx7, Rx4), (Tx7,Rx5), (Tx7,Rx6), (Tx7,Rx7).

[0200] A touch signal is output from a predetermined touch signal detection electrode of a node forming a mutual capacitance Cm. The sensing signal includes not only information about the amount of change in capacitance caused by the touch of an object, but also noise. Here, the noise information includes the LGM interference signal generated in the floating state. Therefore, the nodes that form the mutual capacitance Cm ( The sensing signal received from each touch signal detection electrode of the touch sensor is converted to a predetermined level value and output. When the input is input, the output level value reflects the information on the change in mutual capacitance and the noise information. It is something.

[0201] On the other hand, in FIG. 17, the nodes that do not form the mutual capacitance Cm are (Tx0, Rx4), (Tx0,Rx5), (Tx0,Rx6), (Tx0,Rx7), (Tx1, Rx0), (Tx1,Rx1), (Tx1,Rx2), (Tx1,Rx3), (Tx2, Rx4), (Tx2,Rx5), (Tx2,Rx6), (Tx2,Rx7), (Tx3, Rx0), (Tx3,Rx1), (Tx3,Rx2), (Tx3,Rx3), (Tx4, Rx4), (Tx4,Rx5), (Tx4,Rx6), (Tx4,Rx7), (Tx5, Rx0), (Tx5,Rx1), (Tx5,Rx2), (Tx5,Rx3), (Tx6, Rx4), (Tx6,Rx5), (Tx6,Rx6), (Tx6,Rx7), (Tx7, (Tx0), (Tx7,Rx1), (Tx7,Rx2), (Tx7,Rx3).

[0202] From other predetermined touch signal detection electrodes of nodes that do not form mutual capacitance Cm The output sensing signal may include only noise information. The touch signal detection electrodes may be used as LGM disturbance signal detection electrodes.

[0203] Therefore, a touch input device according to an embodiment of the present invention having such a touch sensor is The device outputs a touch signal from a predetermined touch signal detection electrode of a node forming a mutual capacitance Cm. From the sense signal (first sense signal) to be received, the node (node) that does not form the mutual capacitance Cm A sensing signal (second sensing signal) output from another predetermined touch signal detection electrode is subtracted. Then, the noise information is removed, and information regarding the amount of change in capacitance due to the touch of the object is obtained. Therefore, the nodes ( The mutual capacitance Cm is formed from the sensing signal output from a certain touch signal detection electrode of the The touch signal output from the other predetermined touch signal detection electrodes of the nodes that do not form the touch signal detection electrodes is subtracted. The digital value (or signal level value) corresponding to the subtracted final sensing signal is This value is based on information about the amount of capacitance change that occurs when a touch input device Even in the gripping state, the digital value output is the same or nearly the same as that in the gripped state. A similar digital value may be output.

[0204] Here, more preferably, the touch input device according to the embodiment of the present invention is a mutual electrostatic A sensing signal output from a certain touch signal detection electrode of a node forming a capacitance Cm From the (first sensing signal), other predetermined taps of the nodes that do not form the mutual capacitance Cm The detection signal (second detection signal) output from the detection electrode and a preset factor ( The factor may be multiplied by the second sensing signal and subtracted. The reason is that there are active channels and dummy channels. This is to compensate for the change in the magnitude of the sensing signal that may occur due to differences in the configuration of the The factor may have a preset value such as, but not limited to, 0.8. Rather, the values ​​of the factors may vary by design.

[0205] Specific examples will be described below with reference to FIGS.

[0206] FIG. 18 is a conceptualized view of the touch sensor according to the embodiment of the present invention shown in FIG. FIG.

[0207] Referring to FIG. 18, a touch sensor according to an embodiment of the present invention includes a plurality of drive electrodes TX 0 to TX7 and a plurality of touch signal detection electrodes RX0 to RX7. Mutual capacitance may not be detected from at least some of the poles RX0 to RX7. .

[0208] Here, which of the multiple touch signal detection electrodes RX0 to RX7 is to be detected? Whether the output electrode is used as the LGM interference signal detection electrode depends on the drive electrode to which the drive signal is applied. is determined by.

[0209] For example, when a drive signal is applied to the 0th drive electrode TX0, a plurality of touch signal detection voltages are applied to the 0th drive electrode TX0. The fourth touch signal detection electrode Rx4 and the fifth touch signal detection electrode Rx5 among the electrodes Rx0 to Rx7 , the sixth touch signal detection electrode Rx6, and the seventh touch signal detection electrode Rx7 receive the LGM interference signal. In other words, when a drive signal is applied to the 0th drive electrode Tx0, In this case, the 4th, 5th, 6th, and 7th touch signal detection electrodes Rx4, Rx5, Rx6, and Rx7 are connected to the 0th drive It is used as an LGM interference signal detection electrode that does not form a mutual capacitance Cm with the moving electrode Tx0, The 0th, 1st, 2nd, and 3rd touch signal detection electrodes Rx0, Rx1, Rx2, and Rx3 are the 0th drive electrodes It becomes a touch signal detection electrode that forms a mutual capacitance Cm with Tx0.

[0210] If a driving signal is applied to the first driving electrode Tx1, the fourth, fifth, sixth, and seventh touches The signal detection electrodes Rx4, Rx5, Rx6, and Rx7 have mutual capacitance Cm The 0th, 1st, 2nd, and 3rd touch signal detection electrodes Rx0, Rx1, Rx2, Rx3, Rx1, Rx2, and Rx3 are LGM interference electrodes that do not form a mutual capacitance Cm with the first drive electrode Tx1. It is used as a harm signal detection electrode.

[0211] The touch input device according to the embodiment of the present invention having such a touch sensor is The sensing signal output from a certain touch signal detection electrode of a node forming a capacitance Cm From the signal, other predetermined touch signal detection electrodes of nodes that do not form mutual capacitance Cm By subtracting the sensing signal output from the The information on the amount of change in capacitance can be removed. The touch input device according to the embodiment of the present invention has a predetermined capacitance Cm between the nodes. The mutual capacitance Cm is not formed from the sensing signal output from the touch signal detection electrode. A predetermined frame is set for a sensing signal output from a predetermined touch signal detection electrode of another node. You can also subtract things multiplied by a factor.

[0212] FIG. 19a illustrates a part of the touch signal detection electrodes of the touch sensor illustrated in FIG. 1 is an exemplary diagram for explaining a case where the electrode is used as an LGM interference signal detection electrode. 9a, the principle described above in FIG. 12 is applied to the same / similar parts, and the principle in FIG. 17 is applied to the same / similar parts. may be used.

[0213] In particular, referring to FIG. 19a, when a driving signal is applied to the first driving electrode Tx1, Rx4, Rx5, Rx6, and Rx7 arranged adjacent to the first driving electrode Tx1 are the first driving electrodes. Tx1 and a mutual capacitance Cm are formed as a predetermined touch signal detection electrode. The first driver electrode Tx1 is separated by a predetermined distance from Rx0, Rx1, Rx2, and Rx3. It is used as an LGM interference signal detection electrode that does not form a mutual capacitance Cm with the moving electrode Tx1. In particular, the LG M other predetermined touch signal detection electrodes Rx0, Rx1, Rx2, Rx3 used as interference signal detection electrodes x2, Rx3 are spaced a predetermined distance from the first driving electrode Tx1 to form a mutual capacitance Cm. The touch signal detection electrodes Rx4, Rx5, Rx6, and Rx7 must be connected to each other. Here, the condition that the channels are connected to different channels can be satisfied. Being connected to different channels means that the touch signal detection electrodes Rx4 and Rx5 , Rx6, Rx7 are connected to channels with other electrode numbers that do not overlap with the electrode numbers assigned to them. This means that.

[0214] Sensing signals output from predetermined touch signal detection electrodes Rx4, Rx5, Rx6, and Rx7 contains not only information about the amount of change in capacitance caused by the touch of an object, but also noise information. Here, the noise information is the capacitance due to the LGM interference signal generated in the floating state. Therefore, the information on the amount of change in the touch signal detection electrodes Rx4, Rx5, Rx6, Rx 7, the touch input device detects a touch signal at a predetermined level by a touch signal detector 11a. When the level is converted to a value and output, the output level value is the information on the change in mutual capacitance and the noise The information is reflected.

[0215] On the other hand, other predetermined touch signal detection electrodes Rx used as LGM interference signal detection electrodes The sensing signals output from Rx0, Rx1, Rx2, and Rx3 are the capacitance of the object touched. There is almost no information about the amount of change in and only the noise information.

[0216] Therefore, the LGM interference signal is generated based on the signal value output from a certain touch signal detection electrode. The signal value output from another predetermined touch signal detection electrode used as the detection electrode is subtracted. In this case, only the pure change in mutual capacitance can be obtained.

[0217] In particular, in the case of FIG. 19a, another predetermined touch electrode is used as the LGM interference signal detection electrode. The total area of ​​the signal detection electrodes is approximately equal to the total area of ​​the predetermined touch signal detection electrodes. This can be embodied in

[0218] This is because the magnitude of the detected signal is proportional to the area of ​​the electrode, making it possible to detect LGM interference signals. The magnitude of the LGM interference signal detected from the other specified touch signal detection electrodes used as the electrodes The size of the LGM interference signal detected from a given touch signal detection electrode is maximized. Therefore, in the process of removing the LGM interference signal, can be completely removed.

[0219] On the other hand, in the case of FIG. 19a, other predetermined touch electrodes are used as LGM interference signal detection electrodes. The signal detection electrodes Rx0, Rx1, Rx2, and Rx3 detect changes in capacitance due to the touch of an object. In order to have little information regarding the amount of the touch signal, the predetermined touch signal detection electrodes Rx4, R x5, Rx6, Rx7 and other predefined touch signals used as LGM jamming signal detection electrodes Any drive electrode placed between the detection electrodes Rx0, Rx1, Rx2, and Rx3 is grounded. Alternatively, the predetermined touch signal detection electrodes (RX4, RX 5, RX6, RX7, etc.) can also be set to ground (GND).

[0220] FIG. 19b (part of FIG. 19a) shows a similar / similar application of the principle described above in FIG. 19a. 1 illustrates an example in which physically separate LGM jamming signal detection electrodes are arranged separately, although this may be done in a similar manner. Here, the placement of physically separate LGM interference detection electrodes is equivalent to the timing diagram of FIG. This means that the electrodes are arranged in addition to the touch signal detection electrodes. Therefore, even in the case of the LGM interference signal detection electrodes, a separate trace corresponding to the touch signal detection electrodes is required. Since additional traces are added, the number of traces will be larger than in FIG. 19a.

[0221] In particular, referring to FIG. 19b, when a driving signal is applied to the first driving electrode Tx1, The touch signal detection electrodes Rx4 and Rx7 arranged adjacent to the first drive electrode Tx1 are the first drive electrode. The first driving electrode Tx1 and the second driving electrode Tx2 form a mutual capacitance Cm. The first driving electrode Tx1 and the second driving electrode Tx2 are spaced apart by a predetermined distance. The LGM interference signal detection electrodes LX1 and LX2 have a mutual capacitance C Does not form m.

[0222] The sensing signals output from the touch signal detection electrodes Rx4 and Rx7 include This includes not only information about the amount of change in capacitance due to the switch, but also noise information. The information is the amount of change in capacitance caused by the LGM disturbance signal that occurs in the floating state. Therefore, the sensing signals output from the touch signal detection electrodes Rx4 and Rx7 are When the touch signal detector 11a of the input device converts the signal into a predetermined level value and outputs the converted level, The bell value reflects information on the amount of change in mutual capacitance and the noise information.

[0223] On the other hand, the detection signals output from the LGM interference detection electrodes LX1 and LX2 include There is almost no information regarding the amount of change in capacitance due to touch, and only the noise information is included.

[0224] Therefore, the LGM interference signal is generated based on the signal value output from a certain touch signal detection electrode. The signal value output from the detection electrode is subtracted to obtain only the pure change in mutual capacitance. You can get it.

[0225] In the case of FIG. 19b, the LGM interference signal detection electrodes LX1 and LX2 are connected to the touch signal detection electrodes R The LGM interference detection electrodes LX1 and LX2 may be disposed inside the taps Rx4 and Rx7. It can reduce the base capacitance of the signal detection electrodes Rx4 and Rx7. The interference signal detection electrodes LX1 and LX2 are connected to the touch signal detection electrodes Rx4 and Rx7 by metal plating. After forming the touch signal detection electrodes Rx4 and Rx7, a part of the inside of the electrodes is cut or removed. The LGM interference detection electrodes LX1 and LX2 and the touch signal detection electrodes Rx4 and Rx 7 may be arranged so as to be spaced a predetermined distance apart by holes (H).

[0226] In the case of FIG. 19a, the LGM interference signal detection electrode and the touch signal detection electrode are The touch coordinates are different from each other, i.e., the touch coordinates are different from each other. In this case, the center points of the coordinates of the LGM interference detection electrodes and the touch signal detection electrodes are aligned. 19a, the LGM interference signal can be more effectively removed than in the arrangement of FIG. become.

[0227] In the case of FIG. 19b, the surfaces of the multiple LGM interference detection electrodes LX1 and LX2 are The sum of the products is almost equal to the sum of the areas of the touch signal detection electrodes RX4 and RX7. This is because the magnitude of the detected signal is proportional to the area of ​​the electrode. Therefore, the magnitude of the LGM interference signal detected from the multiple LGM interference signal detection electrodes LX1 and LX2 is and the magnitude of LGM interference signals detected from multiple touch signal detection electrodes RX4 and RX7 This is to make them as identical as possible to each other, so that the LGM interference signal removal process This is to ensure that the LGM interference signal can be completely removed.

[0228] FIG. 20 is a diagram showing a touch input device having a touch sensor according to the embodiment of the present invention shown in FIG. 20(a) is an exemplary diagram of raw data output from a force device. The data is the same as the raw data shown in FIG. The data is for the nodes forming the mutual capacitance Cm in the touch sensor shown in FIG. The raw data is based on the sensing signal output from a certain touch signal detection electrode. FIG. 12(b) shows a node that does not form a mutual capacitance Cm in the touch sensor shown in FIG. The raw data is based on the sensing signal output from a predetermined touch signal detection electrode of the touch panel. .

[0229] FIG. 20(c) shows a predetermined touch signal of a node forming a mutual capacitance Cm. From the sensing signal output from the detection electrode, the nodes that do not form mutual capacitance Cm The raw data is obtained by subtracting the sensing signals output from other predetermined touch signal detection electrodes. do.

[0230] Comparing the raw data in Figure 20(c) with Figure 20(a), In raw data, the digital value (or is a relative value from the digital value (or level value) of the corresponding portion of FIG. 20(a). In other words, the center of the touch area is roughly It can be confirmed that the touch input device has a level value of 250 or more. Confirm that the same or similar level value can be obtained in the floating state as in the gripped state. It is possible.

[0231] Although no separate raw data was shown, the mutual capacitance Cm of the nodes The mutual capacitance Cm is not formed from the sensing signal output from a certain touch signal detection electrode. A predetermined sensing signal is output from a predetermined touch signal detection electrode of a node. The raw data after subtracting the factor is similar to Figure 20(c). can be derived as follows.

[0232] FIG. 21 conceptualizes a touch sensor according to an embodiment of the present invention having a bridge structure. This is a conceptual diagram.

[0233] For reference, the same / similar content as described above for FIG. 17 also applies to FIG. 21. Any receiving electrode may function as a touch signal detection electrode or as an LGM interference signal detection electrode. The touch signal detection electrodes and the LGM interference signal detection electrodes, which do not function together, are physically separated. Assume that this is the case.

[0234] Referring to FIG. 21, a touch sensor according to an embodiment of the present invention includes a plurality of drive electrodes TX 0 to TX7 and a plurality of touch signal detection electrodes RX0 to RX3. The touch sensor includes a plurality of LGM disturbance signal detection electrodes LX0 to LX3.

[0235] Between the plurality of drive electrodes TX0 to TX7 and the plurality of touch signal detection electrodes RX0 to RX3 Although mutual capacitance Cm is formed, multiple driving electrodes TX0 to TX7 and multiple LGM interference electrodes No mutual capacitance Cm is formed between the signal detection electrodes LX0 to LX3. The LGM interference detection electrodes LX0 to LX3 are provided in the A small mutual capacitance may be formed between the touch panel and the touch panel. The capacitance may be neglected.

[0236] The touch input device according to the embodiment of the present invention having such a touch sensor is The sensing signal output from each touch signal detection electrode of the node forming the capacitance Cm is Then, the output from each LGM interference signal detection electrode of the node that does not form the mutual capacitance Cm By subtracting the sensed signal, noise information, especially the capacitance due to the LGM interference signal, can be obtained. Here, the embodiment of the present invention having a touch sensor can be used to remove information on the amount of change in the touch sensor. In the touch input device according to the present embodiment, the touch signals of the nodes forming the mutual capacitance Cm are From the sensing signal output from the detection electrode, the nodes that do not form mutual capacitance Cm The sensing signal output from each LGM interference signal detection electrode is multiplied by a preset factor. You can also deduct things.

[0237] FIG. 22 is a diagram illustrating a touch sensor according to an example to which the conceptual diagram of the touch sensor shown in FIG. 21 can be applied. FIG. 2 is a configuration diagram of a sensor.

[0238] Referring to FIG. 22, a plurality of driving electrodes Tx0, Tx1, Tx2, and Tx3 are arranged horizontally. The touch signal detection electrodes Rx0 and Rx1 are arranged in rows, and a plurality of touch signal detection electrodes Rx0 and Rx1 are arranged in parallel in the vertical direction.

[0239] A plurality of drive electrodes Tx0, Tx1, Tx2, Tx3 and a plurality of touch signal detection electrodes Rx0 , Rx1 are each diamond-shaped, with two adjacent drive electrodes and two adjacent transistors. The touch signal detection electrodes are electrically connected to each other via conductive connections.

[0240] A plurality of drive electrodes Tx0, Tx1, Tx2, Tx3 and a plurality of touch signal detection electrodes Rx0 , Rx1 may be realized as a metal mesh. The conductive connectors connecting Tx1, Tx2, and Tx3 may also be implemented as a metal mesh. The conductive connection parts connecting the moving electrodes Tx0, Tx1, Tx2, and Tx3 are also implemented with metal mesh. The conductive trace may also be embodied as a conductive line.

[0241] A plurality of drive electrodes Tx0, Tx1, Tx2, Tx3 and a plurality of touch signal detection electrodes Rx0 , Rx1 each have a predetermined pattern that is electrically isolated inside. The electrodes are formed to reduce the base capacitance of each touch signal detection electrode and each drive electrode. After forming each driving electrode and each touch signal detection electrode with a metal mesh, The metal mesh inside each driving electrode and each touch signal detection electrode is partially cut or removed. At this time, the driving electrodes and the touch signals are aligned in a predetermined pattern. The signal detection electrode and the predetermined pattern may be spaced apart by a predetermined distance by a hole (H). The plurality of LGM interference signal detection electrodes LX0, LX1 are connected to the plurality of touch signal detection electrodes Rx0, Rx1. A predetermined pattern inside x1 may be electrically connected. The output electrodes Rx0 and Rx1 are very close to the drive electrodes Tx0, Tx1, Tx2, and Tx3. Therefore, mutual capacitance Cm is formed, but the multiple LGM interference signal detection electrodes LX0 , LX1 is located relatively apart from the multiple driving electrodes Tx0, Tx1, Tx2, and Tx3. Thus, the mutual capacitance Cm is formed so small that it can be ignored.

[0242] In particular, in the case of FIG. 22, the areas of the multiple LGM interference signal detection electrodes LX0 and LX1 are The total area of ​​each of the touch signal detection electrodes RX0 and RX1 is approximately equal to the total area of ​​each of the touch signal detection electrodes RX0 and RX1. This is because the magnitude of the detected signal is proportional to the area of ​​the electrode. The magnitude of the LGM interference signal detected from the LGM interference signal detection electrodes LX0 and LX1 is and the magnitude of the LGM interference signal detected from the plurality of touch signal detection electrodes RX0, RX1. This is to make the LGM interference signal removal process as similar as possible. This is so that the GM interference signal can be completely eliminated.

[0243] In the case of FIG. 19a, the areas of the LGM interference signal detection electrodes and the touch signal detection electrodes are The touch coordinates are different from each other. In the case of FIG. 22, the area of ​​the LGM interference signal detection electrode and the touch signal detection electrode are the same. However, the center points of the coordinates of each electrode are aligned, so that the arrangement is different from that of FIG. This means that LGM interference signals can be more effectively removed.

[0244] On the other hand, in the case of FIG. 22, any LGM interference signal detection electrode (e.g. LX0, LX1) has the following: In order to prevent the information about the capacitance change caused by the touch of the object from being stored, Between the moving electrode (e.g. TX3) and any LGM interference signal detection electrode (e.g. LX0, LX1) Set any of the touch signal detection electrodes (e.g. RX0, RX1) to ground (GND). It is possible.

[0245] FIG. 23 conceptualizes a touch sensor according to an embodiment of the present invention having a bridge structure. 23 is another conceptual diagram of a touch sensor according to an embodiment of the present invention. It includes a plurality of first drive electrodes TX0 to TX3 and a plurality of touch signal detection electrodes RX0 to RX7. In addition, the touch sensor according to the embodiment of the present invention includes a plurality of second driving electrodes Mx0 to Mx3. nothing.

[0246] A plurality of first drive electrodes TX0 to TX3 and a plurality of touch signal detection electrodes RX0 to RX7 A mutual capacitance Cm is formed between the plurality of second drive electrodes Mx0 to Mx3 and the plurality of transistors. No mutual capacitance Cm is formed between the touch signal detection electrodes RX0 to RX7. In reality, a plurality of second drive electrodes Mx0 to Mx3 and a plurality of touch signal detection electrodes Rx0 to Rx A small mutual capacitance may be formed between the sensor 7 and the touch sensor 8, but this is a small mutual capacitance when detecting whether or not a touch is performed. Mutual capacitance may be neglected.

[0247] The touch input device according to the embodiment of the present invention having such a touch sensor is The sensing signal output from each touch signal detection electrode RX of the node forming the capacitance Cm From the signal, each touch signal detection electrode RX of the node that does not form the mutual capacitance Cm By subtracting the output sensing signal, noise information, especially electrostatic disturbance caused by LGM interference signals, can be obtained. The information on the amount of change in capacitance can be removed. The mutual capacitance Cm The sensing signals output from the touch signal detection electrodes RX of the nodes that do not form a It is also possible to subtract a factor that has been set.

[0248] FIG. 24 is a diagram illustrating a touch sensor according to an example to which the conceptual diagram of the touch sensor shown in FIG. 23 can be applied. FIG. 2 is a configuration diagram of a sensor.

[0249] Referring to FIG. 24, a plurality of touch signal detection electrodes Rx0, Rx1, Rx2, and Rx3 are A plurality of driving electrodes Tx0 and Tx1 are arranged in parallel in the horizontal direction, and a plurality of driving electrodes Tx0 and Tx1 are arranged in parallel in the vertical direction.

[0250] A plurality of touch signal detection electrodes Rx0, Rx1, Rx2, and Rx3 and a plurality of first drive electrodes T Each of Tx0 and Tx1 has a diamond shape and includes two adjacent first drive electrodes and The two touch signal sensing electrodes are electrically connected via a conductive connection.

[0251] A plurality of touch signal detection electrodes Rx0, Rx1, Rx2, and Rx3 and a plurality of first drive electrodes T The touch signal detection electrodes x0 and Tx1 may be implemented as a metal mesh. The conductive connectors connecting Rx0, Rx1, Rx2, and Rx3 are also implemented with a metal mesh. A conductive connection that connects the plurality of touch signal detection electrodes Rx0, Rx1, Rx2, and Rx3 The portion may also be embodied as a metal mesh or as a conductive trace.

[0252] A plurality of touch signal detection electrodes Rx0, Rx1, Rx2, and Rx3 and a plurality of first drive electrodes T Each of Tx0 and Tx1 has a predetermined pattern that is electrically isolated inside. The turns are formed to reduce the base capacitance of each touch signal detection electrode and the first drive electrode. Each of the first driving electrodes and each of the touch signal detection electrodes may be formed of a metal mesh. Then, the first driving electrodes Tx0 and Tx1 and the touch signal detection electrodes Rx0, Rx1, and Rx2 ,The metal mesh inside the Rx3 is cut or removed to create a specified pattern. In this case, the first driving electrodes Tx0 and Tx1 and the touch signal detection electrodes Tx1 and Tx2 can be formed. Between the electrodes Rx0, Rx1, Rx2, and Rx3 and the predetermined pattern, holes (H) are provided. The electrodes may be spaced apart a fixed distance.

[0253] The second drive electrodes Mx0 and Mx1 are located inside the first drive electrodes Tx0 and Tx1. The first driving electrodes Tx0, Tx 1 is closely adjacent to multiple touch signal detection electrodes Rx0, Rx1, Rx2, and Rx3. Therefore, a mutual capacitance Cm is formed, but the multiple second drive electrodes Mx0 and Mx1 are multiple transistors. The touch signal detection electrodes Rx0, Rx1, Rx2, and Rx3 are located relatively far apart from each other. The capacitance Cm is formed so small that it can be ignored.

[0254] In particular, in the case of FIG. 24, the total area of ​​each of the plurality of second drive electrodes Mx0 and Mx1 is The number of first driving electrodes Tx0 and Tx1 is approximately equal to the sum of the areas of the first driving electrodes Tx0 and Tx1. This is because the magnitude of the detected signal is proportional to the area of ​​the electrode. The magnitude of the LGM interference signal detected from the driving electrodes Mx0 and Mx1 and the number of first driving electrodes Tx The magnitude of the LGM interference signal detected from Tx0 and Tx1 is as similar as possible. Therefore, the LGM interference signal can be completely removed during the LGM interference signal removal process. This is to ensure that

[0255] In the case of FIG. 24, the areas of the second driving electrodes and the first driving electrodes are the same. In addition, the center points of the coordinates of each electrode are aligned, which is more efficient than the arrangement of FIG. As a result, it becomes possible to eliminate the LGM interference signal.

[0256] Meanwhile, in the case of FIG. 24, any second driving electrode (e.g., MX0, MX1) is touched by an object. There is little information about the amount of capacitance change due to touch signal detection. Any of the electrodes (e.g., RX3) and any of the second drive electrodes (e.g., MX0, MX1) Any of the first drive electrodes (eg, TX0, TX1) can be set to ground (GND).

[0257] FIG. 25a shows another example of a touch sensor to which the conceptual diagram of the touch sensor shown in FIG. 21 can be applied. FIG. 1 is a configuration diagram of a touch sensor.

[0258] Referring to FIG. 25a, a plurality of touch signal detection electrodes Rx0, Rx1, and Rx2 are arranged in a lateral direction. , and a plurality of driving electrodes Tx0, Tx1, and Tx2 are arranged in parallel in the vertical direction. Here, the vertical and horizontal directions may be reversed.

[0259] A plurality of touch signal detection electrodes Rx0, Rx1, and Rx2 and a plurality of drive electrodes Tx0 and Tx1 , Tx2 each have a bar shape.

[0260] A plurality of touch signal detection electrodes Rx0, Rx1, and Rx2 are formed on the first layer, and a plurality of driving The electrodes Tx0, Tx1, and Tx2 are formed on the second layer. The first and second layers are arranged on the same plane. For example, a first layer may be placed on top of a second layer. An insulating layer may be disposed.

[0261] A plurality of touch signal detection electrodes Rx0, Rx1, and Rx2 and a plurality of drive electrodes Tx0 and Tx1 , Tx2 may be embodied as a metal mesh or a conductive metal.

[0262] The touch sensor shown in FIG. 25a includes a plurality of LGM disturbance signal detection electrodes LX0, LX1. , LX2. The plurality of LGM interference signal detection electrodes LX0, LX1, LX2 are The touch signal detection electrodes Rx0, Rx1, and Rx2 are formed on the same layer, and multiple touch signals are Between the signal detection electrodes Rx0, Rx1, and Rx2, the LGM interference signal detection electrodes LX0 and LX1 are provided. , LX1, and LX2 may be arranged.

[0263] Each of the drive electrodes Tx0, Tx1, and Tx2 is connected to each of the touch signal detection electrodes Rx0, Rx1, and Rx 2 and the first region overlapping with each of the LGM interference signal detection electrodes LX0, LX1, and LX2 and a second region overlapping the first region, where the size of the first region is equal to the size of the second region. In particular, the size of the second region is preferably as small as possible. This is preferable because it maximizes the mutual capacitance between the LGM jamming signal detection electrodes and the drive electrodes. Or, the touch signal detection electrodes and the LGM interference signal detection electrodes have the same shape. In the condition, the width of the first region of each drive electrode overlapping with the touch signal detection electrode is set to be equal to or smaller than the LGM interference signal. The width of the second region overlapping the signal detection electrode may be designed to be wider than the width of the second region.

[0264] The plurality of drive electrodes Tx0, Tx1, and Tx2 are connected to the plurality of touch signal detection electrodes Rx0, Rx 1. The area of ​​overlap with Rx2 is relatively large, so a relatively large mutual capacitance Cm is formed. However, the multiple LGM interference signal detection electrodes LX0, LX1, and LX2 are connected to the multiple driving electrodes Tx 0, Tx1, and Tx2 are overlapped relatively small, so the mutual static The capacitance Cm is formed so small that it can be ignored.

[0265] In particular, in the case of FIG. 25a, a plurality of LGM interference signal detection electrodes LX0, LX1, LX2 and The sum of the areas of each of the multiple touch signal detection electrodes RX0, RX1, and RX2 is This means that the magnitude of the detected signal is approximately equal to the sum of the Since it is proportional to the area of ​​the pole, it is detected from multiple LGM interference signal detection electrodes LX0, LX1, and LX2. The magnitude of the LGM interference signal emitted from the multiple touch signal detection electrodes RX0, RX1, and RX2 The purpose is to make the magnitude of the LGM interference signal detected from the This allows the LGM interference signal to be completely removed during the LGM interference signal removal process. This is the case.

[0266] On the other hand, in the case of FIG. 25a, any LGM interference signal detection electrode (e.g., LX0, LX1, LX 2) In order to prevent the information on the amount of change in capacitance caused by the touch of an object from being recorded, , any driving electrode (e.g., TX0) and any LGM interference signal detection electrode (e.g., LX0, LX1 , LX2) and any touch signal detection electrodes (e.g. RX0, RX1, RX2 ) can be set to ground (GND).

[0267] FIG. 25b shows that the same / similar principles as described in FIG. 25a are applied, but with the addition of an LGM jamming signal. In this embodiment, the detection electrodes are disposed inside the touch signal detection electrodes.

[0268] In the case of FIG. 25b, the LGM interference detection electrodes LX0, LX1, and LX2 are used for touch signal detection. The LGM interference signal detection electrode LX0 may be disposed inside the output electrodes RX0, RX1, and RX2. , LX1, LX2 reduce the base capacitance of the touch signal detection electrodes RX0, RX1, RX2. The LGM interference detection electrodes LX0, LX1, and LX2 are After forming the touch signal detection electrodes RX0, RX1, and RX2 with a metal mesh, Detect LGM interference signals by cutting or removing parts of the inside of electrodes RX0, RX1, and RX2. The electrodes LX0, LX1, and LX2 and the touch signal detection electrodes RX0, RX1, and RX2 are spaced apart by a predetermined distance. They may be arranged to be spaced apart.

[0269] In the case of FIG. 25b, each of the drive electrodes Tx0, Tx1, and Tx2 is connected to each of the touch signal detection electrodes Rx 0, Rx1, and Rx2 overlapping the first region and each LGM interference signal detection electrode LX0 , LX1, LX2 and a second region overlapping the first region. Here, the size of the first region is The size of the second region is made larger than that of the first region. In particular, the size of the second region is made as small as possible. This is preferably achieved by reducing the mutual static charge between the LGM jamming signal detection electrodes and the drive electrodes. This is to minimize the capacitance of the touch signal detection electrode and the LGM interference signal detection electrode. The width of the first region of each drive electrode that overlaps with the touch signal detection electrode when the pole shapes are the same may be designed to be wider than the width of the second region that overlaps with the LGM interference signal detection electrode.

[0270] The plurality of drive electrodes Tx0, Tx1, and Tx2 are connected to the plurality of touch signal detection electrodes Rx0, Rx 1. The area of ​​overlap with Rx2 is relatively large, so a relatively large mutual capacitance Cm is formed. However, the multiple LGM interference signal detection electrodes LX0, LX1, and LX2 are connected to the multiple driving electrodes Tx0 , Tx1, Tx2 are overlapped relatively small, so the mutual electrostatic The capacitance Cm is made negligibly small.

[0271] FIG. 26 is a touch sensor according to another example to which the conceptual diagram of the touch sensor shown in FIG. 23 can be applied. FIG. 1 is a diagram illustrating the configuration of a switch sensor.

[0272] Referring to FIG. 26, a plurality of touch signal detection electrodes Rx0, Rx1, and Rx2 are arranged in a vertical direction. A plurality of first drive electrodes Tx0, Tx1, and Tx2 are arranged in parallel in the horizontal direction. Here, the vertical and horizontal directions may be reversed.

[0273] A plurality of touch signal detection electrodes Rx0, Rx1, and Rx2 and a plurality of first drive electrodes Tx0, T Each of x1 and Tx2 has a bar shape.

[0274] A plurality of touch signal detection electrodes Rx0, Rx1, and Rx2 are formed in a first layer, and a plurality of first The driving electrodes Tx0, Tx1, and Tx2 are formed on the second layer. The first and second layers are on the same plane. For example, the first layer may be disposed on the second layer. An insulating layer may be disposed on the

[0275] A plurality of touch signal detection electrodes Rx0, Rx1, and Rx2 and a plurality of first drive electrodes Tx0, T x1 and Tx2 may be embodied as a metal mesh or a conductive metal.

[0276] The touch sensor shown in FIG. 26 includes a plurality of second drive electrodes MX0, MX1, and MX2. The plurality of second drive electrodes MX0, MX1, and MX2 are connected to the plurality of first drive electrodes Tx0, Tx1. , Tx2 are formed on the layer on which the first driving electrodes Tx0, Tx1, Tx2 are formed. Respective second drive electrodes MX0, MX1, and MX2 may be disposed between them.

[0277] The touch signal detection electrodes Rx0, Rx1, and Rx2 are connected to the first drive electrodes Tx0, Tx1, The first region overlapping with Tx2 and each of the second drive electrodes MX0, MX1, and MX2 and a second region that is burlapped, wherein the area of ​​the first region is greater than the area of ​​the second region. In particular, it is preferable that the area of ​​the second region is formed as small as possible. This is to minimize the mutual capacitance between the second driving electrodes and the touch signal detection electrodes. Alternatively, under the condition that the shapes of the touch signal detection electrodes are the same, the first driving electrodes and the touch signal detection electrodes are The width of the first region overlapping the output electrode is set to be 1 / 2 the width of the second region overlapping the second driving electrode and the touch signal detection electrode. It may be designed to be larger than the width.

[0278] The first driving electrodes Tx0, Tx1, and Tx2 are connected to the touch signal detection electrodes Rx0, Rx1, Since the overlapping area with Rx2 is relatively large, a relatively large mutual capacitance Cm is formed. However, the second driving electrodes MX0, MX1, and MX2 are connected to the touch signal detection electrodes Rx0, Rx1, Since the overlap with Rx2 is relatively small, the mutual capacitance Cm between the two is It is formed so small that it can be ignored.

[0279] The present applicant has developed a touch input device having a touch sensor shown in FIG. When tests were performed with a conductive rod having a diameter of 15φ in both the floating and the The raw data obtained is shown in Figure 27. However, the raw data on the left side of Figure 27 is in the grip state, and the raw data on the right side of Figure 27 is in the flow state. Comparing the raw data on the left and right in Figure 27, we can see that the floating It was confirmed that the level value of the touch area was significantly lowered by the LGM interference signal generated in the touch state. It can be acknowledged.

[0280] The present applicant has also developed a touch input device having a touch sensor as shown in FIG. Tests were performed using a conductive rod with a diameter of 15φ in both the floating and capacitive states. As described in (a) to (c) of 20, a predetermined tap that forms a mutual capacitance with the driving electrode The LG signal is generated from the sensing signal output from the detection electrode without forming mutual capacitance with the driving electrode. M other predetermined touch signal detection electrodes used as interference signal detection electrodes are outputted. By subtracting the number of samples, the raw data for each condition was obtained. As shown in Figure 28, the raw data on the left side of Figure 28 is in the grip state, and the raw data on the right side of Figure 28 is in the grip state. The raw data on the left and right sides are floating. The deviation of the level value in the touch area between the gripped state and the floating state is compared with that in Figure 27. It can be seen that it is very low in comparison.

[0281] Furthermore, the applicant has developed a touch input device having the touch sensor shown in FIG. Tests were performed with a conductive rod having a diameter of 20φ in both the capped and floating states. When the experiment was performed, raw data for each condition was obtained. The raw data obtained is shown in Figure 29. The left side of Figure 29 shows the raw data in the grip state, and the right side of Figure 29 shows the raw data in the grip state. The data is floating. Comparing the raw data on the left and right in Figure 29, The LGM interference signal generated during touching caused the level value of the touch area to drop significantly. It can be confirmed that:

[0282] The present applicant also provides a touch input device having the touch sensor shown in FIG. Tests were performed with a conductive rod having a diameter of 15φ in both the capped and floating states. As described in (a) to (c) of FIG. 20, the touch sensor 1 forms mutual capacitance with the drive electrode. The LGM is generated without forming mutual capacitance with the driving electrode from the sensing signal output from the signal detection electrode. The sensing signal output from the other predetermined touch signal detection electrode used as the interference signal detection electrode By subtracting the number of samples, the raw data for each condition was obtained. As shown in Figure 30, the raw data on the left side of Figure 30 is in the grip state, and the raw data on the right side of Figure 30 is in the grip state. The raw data on the left and right sides are floating. When the touch panel is in the gripped state and the floating state, the deviation of the level value in the touch area becomes small. Furthermore, it was confirmed that there were some areas where the level value in the floating state was even larger. It can be acknowledged.

[0283] Furthermore, the applicant has developed a touch input device having the touch sensor shown in FIG. When the thumb was actually tested in both the flipped and floating states, The raw data obtained is shown in Figure 31. The raw data on the left side of Figure 31 is the grip state, and the raw data on the right side of Figure 31 is the flow state. Comparing the raw data on the left and right in Figure 31, we can see that the floating state It was confirmed that the level value of the touch area was significantly lowered due to the LGM interference signal generated by the It is possible.

[0284] The present applicant also provides a touch input device having the touch sensor shown in FIG. Tests were performed with a conductive rod having a diameter of 15φ in both the capped and floating states. As described in (a) to (c) of FIG. 20, the touch sensor 1 forms mutual capacitance with the drive electrode. The LGM is generated without forming mutual capacitance with the driving electrode from the sensing signal output from the signal detection electrode. The sensing signal output from the other predetermined touch signal detection electrode used as the interference signal detection electrode By subtracting the number of samples, the raw data for each condition was obtained. As shown in Figure 32, the raw data on the left side of Figure 32 is in the grip state, and the raw data on the right side of Figure 32 is in the grip state. The raw data on the left and right sides are floating. When the touch panel is gripped and floating, there is almost no deviation in the level values ​​within the touch area. It can be confirmed that

[0285] The touch input device having a touch sensor according to the above-mentioned embodiment of the present invention is It has the unique advantage of being able to distinguish two or more multi-touches even in a mobile phone.

[0286] FIG. 33 shows a conventional touch input device in a floating state, which is a multi-object display. 13 is a diagram showing that multi-touch cannot be recognized.

[0287] The situation in FIG. 33 is illustrative of a conventional touch input device mounted on a cradle in a car. In this state, the user places two fingers on the touch surface of the touch input device. can be done.

[0288] As shown in the left diagram of FIG. 33, a conventional touch input device has two multi-touch functions. The touch of one of the buttons may not be recognized, or the user may press two buttons as shown in the right figure of Figure 33. The touch input device recognized this as three or four multiple touches.

[0289] FIG. 34(a) shows a touch input device having a double-layer touch sensor as shown in FIG. This is the raw data when multi-touch is performed after being placed in a loading state. Referring to FIG. 34(a), the LGM interference signal generated in the floating state causes multi-channel noise. The level value of the touched area is relatively low. If the reference level for determining whether or not a touch is detected is If the rule value is set to 65, the part touched relatively above cannot be recognized as a touch. Only the part touched relatively below is recognized as a touch, so of the two touches, A phenomenon occurs in which one of the following cannot be recognized.

[0290] FIG. 34(b) shows a touch input device having the touch sensor shown in FIG. 10, This is raw data when multi-touch is performed after the touch panel is placed in a touch-sensitive state. Referring to (b) of 34, the LGM interference signal generated in the floating state causes multiple There will be a part where the level value of the touched area is relatively low. If the threshold value for determining whether or not there is a touch is set to 65, then 3 or more touches are considered to be present. will be recognized.

[0291] FIG. 34(c) shows a touch input device having the touch sensor shown in FIG. 12, As explained in (a) to (c) of 0, the touch signal detector forms mutual capacitance with the drive electrode. The LGM interference signal is generated from the sensing signal output from the output electrode without forming mutual capacitance with the driving electrode. The touch signal detection electrodes are connected to the other predetermined touch signal detection electrodes. When the pulling method is applied, the touch input device is placed in a floating state. This is the raw data when multi-touch is performed after touching the screen. The two touched areas output a relatively large positive (+) level value. The input device can accurately recognize the user's multi-touch as multi-touch.

[0292] In addition, a touch input device having a touch sensor according to the above-mentioned embodiment of the present invention , a third touch (3 rd Touch) There are some unique advantages to be gained.

[0293] FIG. 35 shows a conventional touch input device with both a cross touch and a third touch on the touch surface. 13 is a diagram showing that the third touch cannot be recognized when the

[0294] The conventional touch input device uses two fingers of the left hand as shown in the left and right drawings of FIG. Between the cross touch and the third touch with one finger of the right hand, the third touch could not be recognized. Ta.

[0295] FIG. 36(a) shows a touch input device having a double-layer touch sensor as shown in FIG. This is the raw data for the cross touch and the third touch. Refer to (a) of Figure 36. The level value in the circle area corresponding to the third touch is compared to the cross-touched area. Therefore, the touch input device cannot recognize the third touch.

[0296] FIG. 36(b) shows a touch input device having the touch sensor shown in FIG. 10. The raw data is shown for the first and third touches. The level value in the circle area corresponding to the touch is compared to the cross-touched area. Therefore, the touch input device cannot recognize the third touch.

[0297] FIG. 36(c) shows a touch input device having the touch sensor shown in FIG. 12, As explained in (a) to (c) of 0, the touch signal detector forms mutual capacitance with the drive electrode. The LGM interference signal is generated from the sensing signal output from the output electrode without forming mutual capacitance with the driving electrode. The touch signal detection electrodes are connected to the other predetermined touch signal detection electrodes. When the touch input device is applied with the cross touch and the third touch, Referring to FIG. 36(c), the relative distance between the two cross-touched parts is A large positive (+) level value is output in the first touch, and a relatively large positive (+) level value is output in the circular area corresponding to the third touch. It can be seen that the positive (+) threshold value is output. The force device is capable of recognizing all tertiary touches as well as cross touches.

[0298] 37a to 37e are diagrams illustrating a configuration of a system for reducing an LGM interference signal according to another embodiment of the present invention. 1 is a diagram to be referred to for explaining the arrangement of electrodes constituting a touch sensor 10.

[0299] A touch sensor panel (not shown) according to an embodiment includes a touch sensor 10. It is okay to do so.

[0300] Specifically, Figs. 37a and 37b are for comparison with Fig. 37c according to an embodiment of the present invention. FIG. 37d is an enlarged view of a portion of FIG. 37c, showing the traces. FIG. 37e illustrates a case where the channel is expanded by applying FIG. 37c.

[0301] In the case of the touch sensor panel of FIG. 37a, the first electrode RX0 included in the A1 column The second electrodes are arranged as TX0-TX3-TX4-TX7, and the second electrodes corresponding to the first electrodes RX1 It can be seen that the electrodes were arranged as TX7-TX4-TX3-TX0.

[0302] According to this arrangement, the same TX7 electrodes are arranged adjacent to each other, On the other hand, there are problems in that a large amount of LGM interference signals are detected and the resolution is reduced.

[0303] Therefore, to improve this, as shown in Figure 37b, By arranging in TX7-TX0-TX3-TX4-TX7, overlapping electrodes can be eliminated. However, in such a case, a trace is inserted between the TX electrodes, as in the Z portion. This means that the traces of the Z part are visible to the outside, causing visual problems. This will result in...

[0304] Therefore, according to an embodiment of the present invention, in order to solve such problems, 37c below, the trace is different from the touch sensor panel of FIG. 9. The number of LGM interference signals is reduced, and visual problems are also solved. This will be explained in more detail below.

[0305] As shown in FIG. 37c, the touch sensor panel according to the embodiment of the present invention has a row ) direction, and may include a plurality of first electrode rows A1 to A8 and a plurality of second electrode rows B1 to B10. Generally, the first electrode rows A1 to A8 and the second electrode rows B1 to B10 are mutually However, some of the second electrode columns B5 and B6 may be arranged alternately with the first electrode column A4. , A5 may be arranged consecutively between them.

[0306] The first electrode columns A1 to A8 may include the first electrodes RX0 to RX7. The second electrode rows B1 to B10 may include a plurality of second electrodes TX0 to TX7. In the example shown in FIG. 1, a plurality of first electrodes RX0 to RX7 are arranged in order of priority in the row direction. The number of second electrodes TX0 to TX7 are arranged in order of priority in the column direction. Although these are given as examples, the scope of the present invention is not limited thereto.

[0307] However, FIG. 37c shows only a part of the entire touch sensor panel, and the columns The remaining first electrodes and the remaining second electrodes may be further arranged in the x-direction and row direction. In FIG. 37c, the first electrode having a relatively large size is a touch signal detection electrode, Although the second electrode having a smaller size is assumed to be a driving electrode, the scope of the present invention is not limited thereto. The first electrode may be defined as a driving electrode and the second electrode may be defined as a touch signal detection electrode. may be applied to one or similar.

[0308] In Figure 37c, the electrodes and traces are separated and formed in separate structures. However, in some embodiments, the electrodes and traces may be in the form of a metal mesh. In such a case, the electrode and the trace and / or the electrode may be integrally formed. There is little dead zone between the electrode and other electrodes where the touch position cannot be detected. As a result, the sensitivity of touch position detection can be further improved.

[0309] The first electrode included in the first electrode column A1, which is one of the first electrode columns A1 to A8, One of the electrodes RX0 and RX1, RX0, one of the plurality of second electrode columns B1 to B10 At least one of the second electrodes TX0, TX3, TX4, and TX7 included in the second electrode column B2 is However, this is the first electrode column A1. It may be applied to the remaining first electrode rows A2 to A8 in the same or similar manner. This is not only applied to the first electrode RX0, but also to the remaining first electrodes RX The same / similar may be applied to 1.

[0310] One of the first electrodes RX0 and RX1 included in the first electrode row A1 is a Any one of the first electrodes RX0 to RX7 included in the touch sensor panel One of the remaining first electrodes excluding the first electrode RX0 included in the first electrode column A1 A first trace is used to connect the first electrode RX0 included in the first electrode column A5 to the first electrode RX1. This means that they are tied to the same sense terminal.

[0311] Any one of the second electrodes TX0, TX3, TX4, and TX7 included in the second electrode row B2 TX0 is any one of the plurality of second electrodes TX0 to TX7 included in the touch sensor panel. The remaining second electrodes excluding one second electrode (the second electrode TX0 included in the second electrode column B2) At least a part of the electrodes (the second electrodes TX0 included in the second electrode columns B1, B3 to B5) They may be tied together using a single second trace, i.e., connected to the same drive terminal. It means to be tied together.

[0312] For reference, the same first electrode means an electrode connected to one first trace. The same second electrode means an electrode that is connected to one second trace.

[0313] According to the structure of the touch sensor panel of FIG. 37c, a plurality of driving electrodes are a driving terminal, and a plurality of touch signal detection electrodes are connected to the same sensing terminal. This will reduce the number of traces.

[0314] At least two of the second electrodes TX0, TX3, TX4, and TX7 are connected to the first electrode RX0. are arranged adjacent to each other, and the other first electrodes RX1 and the other second electrodes TX At least two of TX4, TX7, TX3, and TX0 are arranged adjacent to each other. After that, the second electrodes TX0, TX3, TX4, and TX7 are connected to the other second electrodes TX4, TX 7, TX3, and TX0 electrodes with the same number should be connected using one second trace. As shown in FIG. 9, all the driving electrodes corresponding to one touch signal detection electrode are in a mutually-connected state. This allows the number of traces to be reduced compared to a structure in which different traces are connected.

[0315] On the other hand, among the plurality of first electrodes RX0 to RX7 of the touch sensor panel, The first electrodes RX0, RX3, RX4, and RX7 included in the region S are mutually The first trace may be coupled to a different first trace.

[0316] All the first electrodes RX0, RX3, RX4, and RX7 included in the touch window area S are separated from each other and connected using the other first traces, It is now possible to reduce GM interference signals, which can improve touch sensitivity. become.

[0317] On the other hand, in the present invention, the touch window area S is a residual area such as a touch area of ​​a thumb. The touch window can be defined as an area larger than the touch area of ​​a finger. The area of ​​the region S may be embodied to be about 15mm*15mm or more and about 20mm*20mm or less. However, it may be preferably embodied in a size of about 16 mm*16 mm. For example, the touch window area S is embodied with a size of about 16 mm x 16 mm. showed.

[0318] Specifically, the area of ​​the unit cell (the shaded area in Figure 37c) is approximately 4 mm (length) x 2 mm (width). ) in the case of FIG. 37c. The length of the sphere (the size of the sphere) is about 16 mm, and the width is about 2 mm. The vertical length of the TX electrode (the size of one unit cell) is about 4 mm, and the horizontal length is about 2 mm. Therefore, in FIG. 37c, the area of ​​the touch window area S is about 16 mm x 16 mm. This is an example of what is embodied in size. For reference, the vertical length of TX0 in row B1 is The length of TX0 in row B5 is about 4 mm, the width is about 1 mm, and the length of TX0 in row B5 is about 4 mm. The horizontal length is about 1 mm, so the combined area of ​​these two electrodes is the area of ​​one unit cell. It becomes area.

[0319] Taking FIG. 37c as an example, the touch window area S includes a plurality of first electrodes RX0 to RX 7, RX0, RX3, RX4, RX7 and a plurality of second electrodes TX0 to TX7 Specifically, the first electrodes RX Among the first electrodes RX0, RX3, RX4, RX5, RX6, RX7, four consecutive first electrodes RX0, RX3, RX4, RX7 in the column direction are RX7 and the four first electrodes RX0, RX3, RX4, and RX7, Four consecutive second electrodes TX0, TX3, TX4, and TX7 are adjacent to each other in the row direction. It may be composed of:

[0320] The touch sensor panel of FIG. 37c includes first electrodes RX0, RX The second electrode row B2 is disposed on one side of the first electrode row B1, and the other second electrode row B2 is disposed on the other side of the first electrode row B1. The second electrode TX included in the second electrode row B2 may be arranged on the first electrode row B1. 0, TX3, TX4, TX7 and the second electrodes included in the other second electrode column B1 Any one of the electrodes TX0, TX3, TX4, and TX7 is connected to the first electrodes RX0 and RX1. Any one of them may be arranged in the same row with RX0 as the center. The second electrodes TX0, TX3, TX4, TX7 and the second electrodes TX0, TX 3, TX4, and TX7 are connected to the same second trace. It means pole.

[0321] That is, the relatively large first electrode is disposed adjacent to the left and right sides. Two identical second electrodes having a smaller size may be arranged. The two identical second electrodes are may be arranged on the same line.

[0322] However, in FIG. 37c, the relatively large first electrode is at the center, and the relatively large In the above embodiment, the same second electrodes having small diameters are arranged. However, in other embodiments, the second electrodes may be arranged relatively large. The first electrode is arranged so that the second electrode is smaller in size and the first electrode is larger in size. It can also be embodied as follows.

[0323] In addition, in FIG. 37c, the second electrodes are arranged adjacent to the first electrode on the left and right sides. However, in some embodiments, the second electrodes are arranged adjacent to the upper and lower sides of the first electrode. It can also be embodied as follows.

[0324] In FIG. 37c, the first electrode (e.g., RX0) of the first electrode row A1 is disposed at the center. The second electrode of the second electrode column B2 (e.g., TX0) and the second electrode of the other second electrode column B1 (e.g., TX In the above example, the sizes of the second electrodes in the second electrode row B2 are different. The size of the second electrode (e.g., TX0) in the second electrode row B1 is the same as that of the second electrode (e.g., TX0) in the second electrode row B2. It can also be embodied as follows.

[0325] On the other hand, as shown in FIG. 37c and FIG. 37d, the touch sensor panel has a touch window. The touch window area S and the remaining touch areas adjacent to the touch window area S in the row direction The adjacent touch area S' may be disposed adjacent to the touch area S'. The area is defined as the same size as the touch window area S.

[0326] Here, the second electrodes TX0-TX3-TX4-TX The second electrodes TX included in the adjacent touch area S' among 7-TX4-TX7-TX3-TX0 The first electrode TX4, which is the first electrode among 4-TX7-TX3-TX0, is the touch panel. The second electrodes TX0-TX3-TX4-TX7 included in the window region S are arranged at the very end. The first electrode TX7 is connected to the same trace as the electrode TX4, which is located immediately before the first electrode TX7. The second electrode TX7 located immediately next to the electrode located at the end 3. The electrode TX7 may be connected to the same trace as the electrode TX8.

[0327] The remaining second electrodes TX3-T except for the first electrode and the second electrode X0 is the first electrode, the second electrode, the last electrode, and the The electrodes are arranged in positions facing each other with the electrode arranged immediately before the last electrode being the center. Each of the arranged second electrodes TX3-TX0 may be connected to the same trace.

[0328] FIG. 37e shows an example of an expanded number of channels, which are included in the second electrode row B1. The second electrodes TX0-TX3-TX4-TX7-TX8-TX11-TX12-TX Of 15-TX12-TX15-TX11-TX8-TX7-TX4-TX3-TX0 Second electrodes TX12-TX15-TX11-TX8-TX7 included in adjacent touch area S' The first electrode TX12, which is the first electrode among TX4-TX3-TX0, is a touch panel. Second electrodes TX0-TX3-TX4-TX7-TX8-TX11 included in window region S - Electrode T located just before TX15, the last electrode located in TX12-TX15 The second electrode is connected to the same trace as X12 and is located immediately next to the first electrode. The second electrode TX15 is connected to the same trace as the last electrode TX15. It is okay to do so.

[0329] The remaining second electrodes TX11- TX8-TX7-TX4-TX3-TX0 are the first electrode, the second electrode, The most rearwardly disposed electrode and the most rearwardly disposed electrode The second electrodes TX11-TX8-TX7- are arranged at positions facing each other with the electrode in the center. TX4-TX3-TX0 may each be connected to the same trace.

[0330] This arrangement eliminates the need for separate traces between the TX electrodes. This eliminates the visual issue of traces becoming visible outside.

[0331] As a result, the electrode arrangement in Figure 37c allows for a reduction in the number of traces. It also reduces LGM interference signals and solves the visual problem of traces being visible outside. You will be able to make decisions.

[0332] 19c to 19e are diagrams illustrating the configuration of the device according to the present invention, which is based on FIG. 19a and is based on the principle of FIG. 37c to FIG. 37e. 1 illustrates an electrode pattern and trace connection method fabricated using a 3D stencil.

[0333] 19c to 19e may be applied in the same / similar manner as described above with reference to FIG. 19a.

[0334] FIG. 19d is a drawing showing traces together with some of the electrodes of FIG. 19c.

[0335] Referring to both FIG. 19c and FIG. 19d, the touch window area S includes a plurality of first electrodes. Some of the poles RX0 to RX7, RX0, RX3, RX4, and RX7, and a plurality of second electrodes TX Some of 0 to TX15: TX0, TX1, TX6, TX7, TX8, TX9, TX14 Specifically, among the plurality of first electrodes RX0 to RX7, ) direction, four consecutive first electrodes RX0, RX3, RX5, RX7 and the four first electrodes For each of the poles RX0, RX3, RX4, and RX7, the corresponding adjacent poles in the row direction are Four consecutive second electrodes TX0, TX7, TX8, TX15 or TX1, TX6, TX It may be configured as 9,TX14.

[0336] For reference, in the present invention, when a corresponding second electrode is disposed adjacent to a first electrode, In addition, the fact that the corresponding first electrode is disposed adjacent to the second electrode means that the adjacent first electrode This means that mutual capacitance can occur between the first electrode and the second electrode.

[0337] The touch sensor panel of FIG. 19c includes first electrodes RX0, RX The second electrode row B2 is disposed on one side of the first electrode row B1, and the other second electrode row B2 is disposed on the other side of the first electrode row B1. The second electrode TX included in the second electrode row B2 may be arranged on the first electrode row B1. 0, TX7, TX8, TX15 and the other second electrode column B1 Any one of the two electrodes TX0, TX7, TX8, and TX15 corresponds to the first electrodes RX0 and RX 1 may be arranged in the same row with RX0 as the center. The second electrodes TX0, TX7, and TX 8, TX15 and the second electrodes TX0, TX16, TX17, TX18, TX19, TX20, TX21, TX22, TX23, TX24, TX25, TX26, TX27, TX28, TX29, TX30, TX31, TX32, TX33, TX34, TX35, TX36, TX37, TX , TX7, TX8, and TX15 can constitute the same channel.

[0338] That is, the relatively large first electrode is disposed adjacent to the left and right sides. Two identical second electrodes having a smaller size may be arranged. The two identical second electrodes are In this way, the interference caused by the LGM interference signal described above in FIG. The effect of splitting the result value of the capacitance signal can be improved. Generally, the same second electrode is arranged around the first electrode, or the same second electrode is arranged around the first electrode. This mainly occurs when different second electrodes are arranged in a mixed manner. Therefore, two identical second electrodes are arranged on the same line around every first electrode. In this case, the effect of the LGM interference signal disrupting the capacitance signal result can be relatively improved. You will be able to do it.

[0339] However, in FIG. 19c, the relatively large first electrode is at the center, and the relatively large In the above embodiment, the same second electrodes having small diameters are arranged. However, in other embodiments, A first electrode that is the same but relatively large is disposed around a second electrode that is small in size. It can also be embodied as follows.

[0340] In addition, in FIG. 19c, the second electrodes are arranged adjacent to the left and right sides of the first electrode. However, in some embodiments, the second electrodes are arranged adjacent to the upper and lower sides of the first electrode. It can also be embodied as follows.

[0341] On the other hand, as shown in FIG. 19c, the touch sensor panel has a touch window area S and Among the remaining touch areas, a touch window area S is disposed adjacent to the touch window area S in the row direction. The adjacent touch area S' may include a touch-win adjacent touch area S'. It is defined as an area of ​​the same size as the dough area S'.

[0342] Here, the second electrodes TX0-TX7-TX8-TX The second electrode included in the adjacent touch area S' among 15-TX8-TX15-TX-7-TX0 The first electrode TX8, which is the first electrode to be arranged among the electrodes TX8-TX15-TX7-TX0, is The second electrodes TX0-TX7-TX8-TX15 included in the touch window area S are The electrode TX7 is connected to the same trace as the electrode TX8, which is located immediately before the electrode TX7. In the adjacent touch area S', the second electrode located immediately next to the first electrode is The electrode TX15 is the electrode TX15 arranged at the very end of the touch window region S. may be connected to the same trace.

[0343] The remaining part of the adjacent touch area S' excluding the first electrode and the second electrode Each of the second electrodes TX7-TX0 corresponds to the first electrode of the adjacent touch area S', the second the electrode disposed at the very end of the touch window area S, and the electrode disposed at the very end The electrodes are arranged in positions facing each other with the electrode located immediately in front of the electrode being placed in the center. Each of the second electrodes TX7-TX0 in the switch window area S is connected to the same trace. That's fine.

[0344] FIG. 19e shows an example of an expanded number of channels, which are included in the second electrode row B1. Second electrode TX0-TX7-TX8-TX15-TX16-TX23-TX24-TX 31-TX24-TX31-TX23-TX16-TX15-TX8-TX7-TX0 Among them, the second electrodes TX24-TX31-TX23-TX-16 included in the adjacent touch area S' -The first electrode TX24 that is placed first among TX15-TX8-TX7-TX0 is , the second electrodes TX0-TX7-TX8-TX15-TX included in the touch window area S The electrode TX31 is located just before the last electrode TX31 in the 16-TX23-TX24-TX31. The electrode TX24 is connected to the same trace as the electrode TX24 located at the beginning of the adjacent touch area S'. The second electrode TX31 disposed immediately next to the electrode disposed in the touch window area S may be connected to the same trace as the electrode TX31 located at the very end of S.

[0345] The remaining part of the adjacent touch area S' excluding the first electrode and the second electrode Each of the second electrodes TX23-TX16-TX15-TX8-TX7-TX0 is connected to the adjacent touch area the first electrode, the second electrode, and the touch window area S' The last electrode and the electrode immediately before the last electrode Each of the second electrodes TX23-TX16-TX1 is arranged symmetrically around the pole. 5-TX8-TX7-TX0 may each be connected to the same trace.

[0346] This arrangement eliminates the need for separate traces between the TX electrodes. This will allow us to solve the visual issue of traces being visible outside. become.

[0347] As a result, the electrode arrangement of Figures 19c to 19e also reduces the number of traces. This allows the LGM interference signal to be reduced and the traces to be invisible to the outside. This will enable you to solve even the most visual problems.

[0348] 19f and 19g show other electrode configurations according to embodiments.

[0349] 19f and 19g may be applied in the same / similar manner as described above with respect to FIG. 19a.

[0350] According to the trace connection method using the electrode arrangement of FIG. 19c to FIG. 19e, The bezel where the traces are placed gets thicker and wider, taking up more space Therefore, in the cases of Figures 19f and 19g, the space occupied by the traces is relatively 1 illustrates a trace connection method that is narrowly implemented.

[0351] For example, in the case of Figure 19e, seven trace placement spaces are required to the left of column B1. On the other hand, in the case of Figure 19g, column B1 is required to have 8 trace placement spaces on the right side. As a reference, 4 trace placement spaces are required on the left side, and 8 trace placement spaces are required on the right side. That is, in the case of FIG. 19g, the traces are arranged more precisely than in FIG. 19e. This means that a small space is required to place it.

[0352] The touch sensor panel of FIG. 19f includes first electrodes RX0, RX The second electrode row B2 is disposed on one side of the first electrode row B1, and the other second electrode row B2 is disposed on the other side of the first electrode row B1. The second electrode TX included in the second electrode row B2 may be arranged on the first electrode row B1. 0, TX7, TX8, TX15 and the other second electrode column B1 Any one of the two electrodes TX0, TX7, TX8, and TX15 corresponds to the first electrodes RX0 and RX 1 may be arranged in the same row with RX0 at the center. The second electrodes TX0, TX7, T included in the second electrode column B2 arranged in a row Any one of the second electrodes TX8 and TX15 and the second electrodes TX 0, TX7, TX8, or TX15 is connected using the same second trace. This refers to the electrode to which the

[0353] The touch window region S in FIG. 19f includes some R of the multiple first electrodes RX0 to RX7. X0, RX3, RX4, RX7, and some TX0 of the plurality of second electrodes TX0 to TX15 , TX1, TX6, TX7, TX8, TX9, TX14, TX15. Among the plurality of first electrodes RX0 to RX7, four consecutive first electrodes in a column direction are RX0, RX3, RX4, RX7 and the four first electrodes RX0, RX3, RX4, RX 7, four adjacent and corresponding consecutive second electrodes TX0 , TX7, TX8, TX15 or TX1, TX6, TX9, TX14.

[0354] On the other hand, as shown in FIG. 19f, the touch sensor panel has a touch window area S and Among the remaining touch areas, the touch window area S is disposed adjacent to the touch window area S in the row direction. The adjacent touch area S' may include a touch window. It is defined as an area of ​​the same size as area S.

[0355] Here, the second electrodes TX0-TX7-TX8-TX 15-TX7-TX0-TX15-TX8 are the second electrodes in the touch window area S. The first electrode set is composed of TX0 and TX7, and the second electrode set is composed of TX8 and TX15. A second electrode set is included, and the second electrodes TX7 and TX0 are included in the adjacent touch area S'. The fourth electrode set is composed of the third electrode set and the second electrodes TX15 and TX8.

[0356] The second electrodes TX7 and TX0 constituting the third electrode set in the adjacent touch area S' are The second electrodes TX7 and TX0 constituting the first electrode set in the touch window area S, Each of the second electrodes TX7, TX8, TX9, TX10, TX11, TX12, TX13, TX14, TX15, TX16, TX17, TX18, TX19, TX20, TX21, TX22, TX23, TX24, TX25, TX26, TX27, TX28, TX29, TX30, TX31, TX0 may be disposed at positions symmetrical to each other in the third electrode set and the first electrode set. That is, the second electrode TX7 arranged second in the first electrode set is TX7, which is the first electrode in the first electrode set, is connected to the same trace as the second electrode TX8, which is the first electrode in the first electrode set. The first arranged second electrode TX0 is the second arranged second electrode T It may be connected to the same trace as X0.

[0357] This feature is equally applicable to the second electrode set and the fourth electrode set. do.

[0358] The second electrodes TX15 and TX8 constituting the fourth electrode set in the adjacent touch area S' are The second electrodes TX15 and TX8 constituting the second electrode set in the window region S are the same as those in the second electrode set TX15 and TX8. Each of the second electrodes TX15, TX16, TX18, TX19, TX20, TX21, TX22, TX23, TX24, TX25, TX26, TX27, TX28, TX29, TX30, TX31, TX32, TX33, TX34, TX35, TX36, TX37, TX38, TX39, TX TX8 may be arranged at positions symmetrical to each other in the fourth electrode set and the second electrode set. That is, the second electrode TX15 arranged second in the second electrode set is the fourth electrode set. The second electrode set is connected to the same trace as the first second electrode TX15 in the The second electrode TX8 arranged first in the fourth electrode set is the second electrode arranged second in the fourth electrode set. May be tied to the same trace as TX8.

[0359] FIG. 19f illustrates an example in which one electrode set includes two electrodes. However, FIG. 19g illustrates an example in which one electrode set includes four electrodes. In addition, the scope of the present invention also includes an electrode set including n electrodes. may be applied to all the same / similar

[0360] In FIG. 19g, the second electrodes TX0-TX7-T included in the second electrode row B1 X8-TX15-TX16-TX23-TX24-TX31-TX15-TX8-TX7 -TX0-TX31-TX24-TX23-TX16 are in the touch window area S. The first electrode set is composed of the second electrodes TX0, TX7, TX8, and TX15, and the second electrodes The second electrode set includes TX16-TX23-TX24-TX31 and is adjacent to the In the region S', the third electrode cell is composed of the second electrodes TX15-TX8-TX7-TX0. The fourth electrode set is composed of the first electrode and the second electrode TX31-TX24-TX23-TX16. Includes.

[0361] Second electrodes TX15-TX8-TX7 constituting a third electrode set in adjacent touch area S' -TX0 is a second electrode TX15-T constituting the first electrode set of the touch window area S. X8-TX7-TX0 are connected to the same trace. And the same trace Each of the second electrodes TX15-TX8-TX7-TX0 connected to the third electrode set and the first electrode The first electrode set may be disposed opposite each other in the first electrode set. The second electrode TX0 arranged in the third electrode set is the fourth electrode TX0 A second electrode TX7 is connected to the same trace as , connected to the same trace as the second electrode TX7 located third in the third electrode set; The second electrode TX8, which is placed third in the first electrode set, is the second in the third electrode set. It is connected to the same trace as the second electrode TX8 and is the fourth electrode in the first electrode set. The second electrode TX15 placed on the third electrode set is the first electrode TX15 placed on the third electrode set. may be connected to the same trace.

[0362] This feature is equally applicable to the second electrode set and the fourth electrode set. do.

[0363] Second electrodes TX31-TX24-TX constituting the fourth electrode set in the adjacent touch area S' 23-TX16 is a second electrode TX3 constituting a second electrode set of the touch window area S. 1-TX24-TX23-TX16 are connected to the same trace. Each of the second electrodes TX31-TX24-TX23-TX16 connected to one trace is a fourth The first electrode set and the second electrode set may be disposed in opposing positions to each other. The second electrode, TX16, which is placed first in the electrode set, is placed fourth in the fourth electrode set. TX15 is connected to the same trace as the second electrode TX15 and is the second electrode in the second electrode set. The second electrode TX23 arranged in the fourth electrode set is the third electrode TX23 arranged in the fourth electrode set. A second electrode TX24, which is connected to the same trace and is located third in the second electrode set, is , which is connected to the same trace as the second electrode TX24 located second in the fourth electrode set. The second electrode TX31, which is arranged fourth in the second electrode set, is the first electrode in the fourth electrode set. 3. The second electrode TX31 may be connected to the same trace as the second electrode TX31 arranged on the first trace.

[0364] This arrangement allows the width of the bezel of the touch input device to be narrowed. become.

[0365] In Figure 19, the electrodes with relatively large size are the touch signal detection electrodes, In the example shown here, the driving electrode is a small electrode. However, in contrast, the driving electrode is a relatively large electrode. Even when the driving electrode is a relatively small electrode, the present invention can be applied to the touch signal detection electrode. The invention may be applied to the same / similar things.

[0366] The examples given above in FIG. 19 do not only apply to the electrodes or electrode rows given in the examples, The same / similar may be applied to all corresponding electrodes and electrode columns within the touch sensor panel.

[0367] 38 to 48 show various electrode arrangements and trays according to other embodiments of the present invention. In order to explain the case where LGM suppression is applied in each embodiment, This is a drawing for reference.

[0368] The principle described above with reference to FIG. 19a may be applied in the same or similar manner to the cases of FIG. 38 to FIG. 48. That is, the touch signal detection is performed without disposing a separate LGM interference signal detection electrode. Some of the electrodes can be used as LGM interference signal detection electrodes.

[0369] 38 to 44, only one touch window area S of the touch sensor is shown as an example. 1, each touch sensor further includes a plurality of electrodes in a row and column direction, The same / similar principles may be applied to the remaining touch window areas of the sensor.

[0370] 45 to 48, only a part of the touch sensor is shown, and It may further include a plurality of first electrodes and a second electrode.

[0371] 38 to 40 and 43 to 48, the first The electrode is a driving electrode, and the second electrode having a relatively smaller area and / or length is a touch signal detection electrode. 41 and 42, the first electrode having a relatively large area and / or length is used as a touch signal. The signal detection electrode and the second electrode having a relatively small area and / or length are defined as the driving electrode. If the opposite is true, the following principles may be applied as equivalent / similar.

[0372] 38 to 40, 43 and 44, the length of one touch signal detection electrode is The length of the driving electrode is 1 / 2, and the area of ​​one touch signal detection electrode is the area of ​​one driving electrode. In the example shown in FIG. 41 and FIG. 42, the length of one driving electrode is 1 / 4 of the length of one tap. The area of ​​one driving electrode is 1 / 4 of the length of one touch signal detection electrode. Although the example shows a value that is 1 / 2 of the pole area, the present invention will remain the same / similar even if it is changed to another value. may be applied to.

[0373] In FIG. 45 to FIG. 48, the area of ​​one touch signal detection electrode is 1 / 1 the area of ​​one drive electrode. / 2 is shown as an example, but the scope of the present invention is not limited thereto.

[0374] As shown in FIG. 38, the touch sensor according to the embodiment of the present invention has a row direction. It may include a plurality of extended first electrode rows A1 to A4 and a plurality of extended second electrode rows B1 to B8. Generally, the first electrode rows A1 to A4 and the second electrode rows B1 to B8 are arranged alternately with each other. However, some of the second electrode columns (e.g. B2, B3) may be placed in the first electrode columns A1, A2. may be arranged consecutively between

[0375] The first electrode columns A1 to A4 may include the first electrodes TX0 to TX7. The second electrode columns B1 to B8 may include a plurality of second electrodes RX0 to RX7. A plurality of first electrodes TX0 to TX7 are arranged in order of priority in the column direction, and a plurality of second electrodes Although the example shows that RX0 to RX7 are arranged in order of priority in the column direction, The scope of benefits is not limited to this.

[0376] However, FIG. 38 shows only a part of the entire touch sensor, and The remaining first electrodes and the remaining second electrodes may further be arranged in the row direction.

[0377] In FIG. 38, the electrodes and traces are separated and formed in separate configurations. However, in some embodiments, the electrodes and traces may be in the form of a metal mesh. In such a case, the electrode and the trace and / or the electrode may be formed integrally. There is little dead zone between the electrode and other electrodes where the touch position cannot be detected. As a result, the sensitivity of touch position detection can be further improved.

[0378] In FIG. 38, for example, the driving electrode TX1 in row A2 is connected to the touch signal detection electrode RX1 in row B4. , RX6 are arranged so that at least two of them are adjacent to each other, Another driving electrode TX5 in the next row is connected to another of the touch signal detection electrodes RX1 and RX6. and then disposing at least two of the The electrode with the same number among the at least two other electrodes uses one trace. Thus, all the touch signals corresponding to one driving electrode can be connected to Compared to a structure in which all detection electrodes are connected to different traces, the number of traces can be reduced. However, this is not only possible between columns A2 and B4, but also between columns A2 and B3. The same / similar rules may be applied to columns, but only between columns A1 and B1, and between columns A1 and B2. The same / similar rule may also be applied to all A and B rows included in the touch sensor. stomach.

[0379] For reference, in the present invention, the touch signal detection electrodes are arranged adjacent to the driving electrodes. The fact that the touch signal detection electrodes are arranged adjacent to the corresponding driving electrodes means that It is meant that mutual capacitance may occur between adjacent drive electrodes and touch signal detection electrodes. You will get to taste it.

[0380] In FIG. 38, two lines of touch signal detection electrodes are arranged around one row of driving electrodes. In each of the two lines, the same number may be provided on the left and right sides of the driving electrode of one row. The touch signal detection electrodes may be arranged on the left and right sides of the driving electrodes in one row. The touch signal detection electrode can constitute one channel. This improves the effect of disrupting the capacitance signal result value due to the LGM interference signal. The result value of the capacitance signal is generally split because the same touch signal detection voltage is applied to the driving electrode. Alternatively, different touch signal detection electrodes may be arranged around the drive electrodes. Therefore, when all the driving electrodes are mixed, When two identical touch signal detection electrodes are arranged on the same line in the center, the LGM interference signal Therefore, the effect of the splitting of the result value of the capacitance signal by the capacitance signal can be relatively further improved.

[0381] In FIG. 38, the first line corresponds to the drive electrode in the first row (TX1 in column A2). The touch signal detection electrode (RX1 in column B4) and the drive electrode (TX5 in column A2) in the second row are connected to the The touch signal detection electrode (RX1 in column B4) arranged in the first line corresponding to may be coupled to the traces of

[0382] Similarly, in the second line, the driving electrode in the first row (TX1 in column A2) The touch signal detection electrode (RX6 in column B4) and the drive electrode (TX 5) The touch signal detection electrode (RX6 in row B4) arranged in the second row is The signal may be coupled to one trace.

[0383] Each of the drive electrodes included in the first electrode rows A1 to A4 has a first trace different from each other. This allows the LGM interference signal to be reduced, This makes it possible to improve the touch sensitivity.

[0384] However, this is not only applied to the first electrode column A2, but also to the remaining first electrode columns. may also be applied in the same / similar manner.

[0385] Referring to FIG. 38, when a drive signal is applied to the first drive electrode Tx1, The electrode RX1 (shaded) arranged adjacent to the first drive electrode Tx1 has a mutual capacitance Cm and is used as a predetermined touch signal detection electrode forming a predetermined distance from the first driving electrode Tx1. The mutual capacitance Cm and other predetermined touch signal detection electrodes used as LGM disturbance signal detection electrodes that do not form a may be defined.

[0386] Specifically, in FIG. 38, another predetermined electrode is used as the LGM interference detection electrode. The touch signal detection electrodes Rx0 and Rx2 are spaced apart from the first driving electrode Tx1 by a predetermined distance. The capacitance Cm must not be formed, and the capacitance Cm must not be in correspondence with the predetermined touch signal detection electrode Rx1. Here, the condition that the different channels are connected to each other can be satisfied. To be connected to a certain channel means that an electrode number is assigned to a certain touch signal detection electrode Rx1. This means that the electrode number is connected to a channel of another electrode number that does not overlap with the electrode number.

[0387] The sensing signals output from the touch signal detection electrodes Rx1 and Rx6 include This includes not only information about the amount of change in capacitance due to the switch, but also noise information.

[0388] On the other hand, other predetermined touch signal detection electrodes Rx used as LGM interference signal detection electrodes The sensing signal output from Rx2 is related to the amount of change in capacitance caused by the touch of an object. There is very little information, only the noise information.

[0389] Therefore, the LGM interference signal is generated based on the signal value output from a certain touch signal detection electrode. The signal value output from another predetermined touch signal detection electrode used as the detection electrode is subtracted. In this case, only the pure change in mutual capacitance can be obtained.

[0390] In particular, in the case of FIG. 38, another predetermined touch signal is used as the LGM interference signal detection electrode. The total area of ​​the touch signal detection electrodes is approximately equal to the total area of ​​the touch signal detection electrodes. It can be realized.

[0391] This is because the magnitude of the detected signal is proportional to the area of ​​the electrode, making it possible to detect LGM interference signals. The magnitude of the LGM interference signal detected from the other specified touch signal detection electrodes used as the electrodes and the magnitude of the LGM disturbance signal detected from a given touch signal detection electrode are at most Therefore, in the process of removing the LGM interference signal, This is so that the signal can be completely removed.

[0392] On the other hand, in the case of FIG. 38, other predetermined touch signals are used as LGM interference signal detection electrodes. The detection electrodes Rx0 and Rx2 have almost no information on the amount of change in capacitance caused by the touch of an object. In order to prevent this, the first driving electrode Tx1 and the LGM are used as interference signal detection electrodes. Any drive electrode or the like disposed between other predetermined touch signal detection electrodes Rx0 and Rx2 A certain touch signal detection electrode (e.g., RX1) can be set to ground (GND). do.

[0393] FIG. 39 shows a pattern in which the same driving electrodes arranged in the same row are arranged in the same direction as the pattern in FIG. In this example, the driving electrodes are arranged in the same row. Any one of the driving electrodes can form the same channel with the other driving electrodes. X0-TX1-TX0-TX1, where the driving electrodes of the same number are placed between them, The driving electrodes having the same number may be electrically connected to each other. Each row can be used to form one channel. The number of drive electrodes with the same number that make up one row is half the number of all drive electrodes that make up one row. However, the scope of the present invention is not limited to this number.

[0394] FIG. 39 may be applied in the same or similar manner as described above with reference to FIG. 38. However, FIG. 39 , the number of channels of the drive electrodes is reduced compared to FIG.

[0395] In FIG. 40, for example, the driving electrode TX1 in row A2 is connected to the touch signal detection electrode RX2 in row B3. , RX5 are arranged so that at least two of them are adjacent to each other, and other drives At least two of the touch signal detection electrodes RX2 and RX5 correspond to the moving electrode TX6. and then the at least two electrodes and the other at least two electrodes are disposed adjacent to each other. At least two electrodes with the same number are connected using one trace. All the touch signal sensing electrodes corresponding to one driving electrode are connected to different traces. This allows the number of traces to be reduced compared to the structure described above.

[0396] In FIG. 40, different touch signal detections are performed on the left and right sides of the same row centered on each drive electrode. An electrode may be positioned.

[0397] Referring to FIG. 40, when a drive signal is applied to the first drive electrode Tx1, Rx1 and Rx2 (shaded) arranged adjacent to the first drive electrode Tx1 are mutually electrostatically connected to the first drive electrode Tx1. The first driving electrode Tx1 and the second driving electrode Tx2 are used as predetermined touch signal detection electrodes forming a capacitance Cm. Rx0 and Rx3 (reverse diagonal lines) arranged at a certain distance from each other are electrostatically coupled to the first driving electrode Tx1. Other predetermined touch signal detection electrodes used as LGM interference signal detection electrodes that do not form capacitance Cm The output electrode may be defined as an output electrode.

[0398] Specifically, in FIG. 40, another predetermined electrode is used as the LGM interference signal detection electrode. The touch signal detection electrodes Rx0 and Rx3 are spaced apart from the first driving electrode Tx1 by a predetermined distance. The capacitance Cm must not be formed, and the predetermined touch signal detection electrodes Rx1 and Rx2 must not be connected to the The condition that the two channels are connected to each other can be satisfied. The fact that the electrodes are connected to different channels means that the electrodes are connected to the same touch signal detection electrodes Rx1 and Rx2. This means that the electrode number is connected to a channel of another electrode number that does not overlap with the assigned electrode number. do.

[0399] The sensing signals output from the touch signal detection electrodes Rx1 and Rx2 include This includes not only information about the amount of change in capacitance due to the switch, but also noise information.

[0400] On the other hand, other predetermined touch signal detection electrodes Rx used as LGM interference signal detection electrodes The sensing signal output from Rx3 is related to the amount of change in capacitance caused by the touch of an object. There is very little information, only the noise information.

[0401] Therefore, the LGM interference signal is generated based on the signal value output from a certain touch signal detection electrode. The signal value output from another predetermined touch signal detection electrode used as the detection electrode is subtracted. In this case, only the pure change in mutual capacitance can be obtained.

[0402] In particular, in the case of FIG. 40, another predetermined touch signal is used as the LGM interference signal detection electrode. The total area of ​​the touch signal detection electrodes is approximately equal to the total area of ​​the touch signal detection electrodes. It can be realized.

[0403] This is because the magnitude of the detected signal is proportional to the area of ​​the electrode, making it possible to detect LGM interference signals. The magnitude of the LGM interference signal detected from the other specified touch signal detection electrodes used as the electrodes and the magnitude of the LGM disturbance signal detected from a given touch signal detection electrode are at most Therefore, in the process of removing the LGM interference signal, This is so that the signal can be completely removed.

[0404] On the other hand, in the case of FIG. 40, other predetermined touch signals are used as the LGM interference signal detection electrodes. The detection electrodes Rx0 and Rx3 have almost no information on the amount of change in capacitance caused by the touch of an object. In order to prevent this, the first driving electrode Tx1 and the LGM are used as interference signal detection electrodes. Any drive electrodes or any other electrodes disposed between other predetermined touch signal detection electrodes Rx0 and Rx3 The touch signal detection electrodes (e.g., RX1, RX2) can be set to ground (GND). can.

[0405] In FIG. 41 and FIG. 42, electrodes having a relatively large area and / or length are designated as touch signal detection electrodes. The electrode having a relatively small area and / or length is defined as the driving electrode. Even if the above-mentioned case is realized, the following principles may be applied in the same / similar manner.

[0406] In FIG. 41, multiple drive electrodes are arranged with priority given to the column direction, and the left and right sides of each drive electrode are The same touch signal detection electrodes may be arranged on the left and right sides of the first driving electrode. The touch signal detection electrodes and the touch signal electrodes arranged on the left and right sides of the second drive electrode are arranged in the center. The detection electrodes may be arranged differently from each other.

[0407] Referring to FIG. 41, when a drive signal is applied to the first drive electrode Tx1, The pole Tx1 and the adjacently arranged Rx1 (shaded) have mutual capacitance Cm and is used as a predetermined touch signal detection electrode forming a predetermined distance from the first driving electrode Tx1. The mutual capacitance Cm and other predetermined touch signal detection electrodes used as LGM disturbance signal detection electrodes that do not form a may be defined.

[0408] Specifically, in FIG. 41, another predetermined electrode is used as the LGM interference signal detection electrode. The touch signal detection electrodes Rx0 and Rx2 are spaced apart from the first driving electrode Tx1 by a predetermined distance. The capacitance Cm must not be formed, and the capacitance Cm must not be in correspondence with the predetermined touch signal detection electrode Rx1. Here, the condition that the different channels are connected to each other can be satisfied. To be connected to a certain channel means that an electrode number is assigned to a certain touch signal detection electrode Rx1. This means that the electrode number is connected to a channel of another electrode number that does not overlap with the electrode number.

[0409] The sensing signals output from the touch signal detection electrodes Rx1 and Rx6 include This includes not only information about the amount of change in capacitance due to the switch, but also noise information.

[0410] On the other hand, other predetermined touch signal detection electrodes Rx used as LGM interference signal detection electrodes The sensing signal output from Rx2 is related to the amount of change in capacitance caused by the touch of an object. There is very little information, only the noise information.

[0411] Therefore, the LGM interference signal is generated based on the signal value output from a certain touch signal detection electrode. The signal value output from another predetermined touch signal detection electrode used as the detection electrode is subtracted. In this case, only the pure change in mutual capacitance can be obtained.

[0412] In particular, in the case of FIG. 41, another predetermined touch signal is used as the LGM interference signal detection electrode. The total area of ​​the touch signal detection electrodes is approximately equal to the total area of ​​the touch signal detection electrodes. It can be realized.

[0413] This is because the magnitude of the detected signal is proportional to the area of ​​the electrode, making it possible to detect LGM interference signals. The magnitude of the LGM interference signal detected from the other specified touch signal detection electrodes used as the electrodes and the magnitude of the LGM disturbance signal detected from a given touch signal detection electrode are at most Therefore, in the process of removing the LGM interference signal, This is so that the signal can be completely removed.

[0414] On the other hand, in the case of FIG. 41, other predetermined touch signals are used as the LGM interference signal detection electrodes. The detection electrodes Rx0 and Rx2 have almost no information on the amount of change in capacitance caused by the touch of an object. In order to prevent this, the first driving electrode Tx1 and the LGM are used as interference signal detection electrodes. Any drive electrodes or any other electrodes disposed between other predetermined touch signal detection electrodes Rx0 and Rx2 The touch signal detection electrode (for example, RX1) can be set to ground (GND).

[0415] In FIG. 42, the principles previously described in FIG. 41 may be applied in the same / similar manner, except that: touch signal detection electrodes RX0 arranged on the left and right sides of a first driving electrode TX0 in the first region; The touch signal detection electrodes RX1 arranged on the left and right sides of the second drive electrode TX1 are The second region adjacent to the first region in the column direction may be arranged differently from the first region. The touch signal detection electrodes RX0, RX1 are the same as the touch signal detection electrodes RX0, RX That is, the first driving electrode TX2 in the second region may be disposed on the left and right sides of the first driving electrode TX2 in the second region. The touch signal detection electrodes RX0 and the first driving electrodes TX0 in the first region are disposed on the left and right sides of the first driving electrodes TX0. The touch signal detection electrode RX0 disposed in the second region may be connected to a trace. The touch signal detection electrodes RX1 are arranged on the left and right sides of the second driving electrodes TX3 of the first region. The touch signal detection electrodes RX1 arranged on the left and right sides of the second drive electrode TX1 in the region are the same. The signal may be coupled to one trace.

[0416] Referring to FIG. 42, when a drive signal is applied to the first drive electrode Tx1, The pole Tx1 and the adjacently arranged Rx1 (shaded) have mutual capacitance Cm and is used as a predetermined touch signal detection electrode forming a predetermined distance from the first driving electrode Tx1. The separated Rx0 (reverse diagonal line) forms a mutual capacitance Cm with the first drive electrode Tx1. It is defined as any other predetermined touch signal detection electrode that is used as an LGM disturbance signal detection electrode that is not an LGM disturbance signal detection electrode. That's fine.

[0417] Specifically, in FIG. 42, another predetermined electrode is used as the LGM interference signal detection electrode. The touch signal detection electrode Rx0 is spaced a predetermined distance from the first driving electrode Tx1 to form a mutual capacitance. Cm, and a predetermined touch signal detection electrode Rx1 and a different channel Here, the condition that the two channels are connected to each other can be satisfied. To be connected means that the electrode number assigned to the touch signal detection electrode Rx1 overlaps with the electrode number assigned to the touch signal detection electrode Rx1. This means that the electrode is connected to a channel of another electrode number that does not have the same electrode number.

[0418] The sensing signal output from a certain touch signal detection electrode Rx1 includes a This includes not only information about the amount of change in capacitance but also noise information.

[0419] On the other hand, other predetermined touch signal detection electrodes Rx used as LGM interference signal detection electrodes The sensing signal output from the sensor contains almost no information about the amount of change in capacitance caused by the touch of an object. However, it only contains the noise information.

[0420] Therefore, the LGM interference signal is generated based on the signal value output from a certain touch signal detection electrode. The signal value output from another predetermined touch signal detection electrode used as the detection electrode is subtracted. In this case, only the pure change in mutual capacitance can be obtained.

[0421] In particular, in the case of FIG. 42, another predetermined touch signal is used as the LGM interference signal detection electrode. The total area of ​​the touch signal detection electrodes is approximately equal to the total area of ​​the touch signal detection electrodes. It can be realized.

[0422] This is because the magnitude of the detected signal is proportional to the area of ​​the electrode, making it possible to detect LGM interference signals. The magnitude of the LGM interference signal detected from the other specified touch signal detection electrodes used as the electrodes and the magnitude of the LGM disturbance signal detected from a given touch signal detection electrode are at most Therefore, in the process of removing the LGM interference signal, This is so that it can be completely removed.

[0423] On the other hand, in the case of FIG. 42, other predetermined touch signals are used as the LGM interference signal detection electrodes. The signal detection electrode Rx0 has almost no information about the amount of change in capacitance caused by the touch of an object. In order to achieve this, the first driving electrode Tx1 and other predetermined electrodes used as LGM interference signal detection electrodes are Any drive electrode or any touch signal detection electrode Rx0 disposed between the touch signal detection electrode Rx1 and the An electrode (eg, RX1) can be set to ground (GND).

[0424] The principle described above in FIG. 38 may be applied to FIG. 43 in the same or similar manner. In the example shown in FIG. 38, RX electrodes RX1, RX2, RX3, RX4, RX5, RX6, RX7, RX8, RX9, RX10, RX11, RX12, RX13, RX14, RX15, RX16, RX17, RX18, RX19, RX19, RX20, RX21, RX22, RX23, RX The electrodes with the same number as RX6 are arranged in the same order in columns B3 and B4, centered on the driving electrode TX5 in the next row. In FIG. 43, the electrodes are arranged in the order of (RX1, RX6), but the electrodes are arranged in the order of B3, with the arbitrary driving electrode TX1 at the center. The electrodes with the same numbers as the RX electrodes RX1 and RX6 arranged in the first order in columns B1 and B2 are in the next row. The driving electrodes TX5 may be arranged in the reverse order (RX6, RX1) to the first order. That is, in FIG. 38, the arrangement is RX1-RX6-RX1-RX6, but in FIG. may be arranged as RX1-RX6-RX6-RX1.

[0425] In other words, the first line corresponds to the driving electrode of the first row (TX1 of column A2). The touch signal detection electrode (RX1 in column B4) and the drive electrode (TX3 in column A2) in the second row are The touch signal detection electrodes (RX1 in column B4) arranged in the second line corresponding to The signal may be coupled to one trace.

[0426] Similarly, the second line corresponds to the driving electrode of the first row (TX1 of column A2). The touch signal detection electrode (RX6 in column B4) and the drive electrode (TX3 in column A2) in the second row are The touch signal detection electrode (RX6 in row B4) arranged in the first line corresponding to The signal may be coupled to one trace.

[0427] That is, the second electrodes arranged at positions symmetrical to each other with respect to the row direction are may be coupled to the traces of

[0428] The principle described above in FIG. 39 may be applied to FIG. 44 in the same or similar manner. In the example shown in FIG. 39, RX electrodes RX1, RX2, RX3, RX4, RX5, RX6, RX7, RX8, RX9, RX10, RX11, RX12, RX13, RX14, RX15, RX16, RX17, RX18, RX19, RX19, RX20, RX21, RX22, RX23, RX The electrodes with the same number as RX6 are arranged in the same order in columns B3 and B4, centered on the driving electrode TX3 in the next row. In FIG. 44, the electrodes are arranged in the order of (RX1, RX6), but in FIG. The electrodes with the same numbers as the RX electrodes RX1 and RX6 arranged in the first order in columns B1 and B2 are in the next row. The driving electrodes TX3 may be arranged in the reverse order (RX6, RX1) to the first order. That is, in FIG. 39, the arrangement is RX1-RX6-RX1-RX6, but in FIG. may be arranged as RX1-RX6-RX6-RX1.

[0429] In other words, the first line corresponds to the driving electrode of the first row (TX1 of column A2). The touch signal detection electrode (RX1 in column B4) and the drive electrode (TX3 in column A2) in the second row are The touch signal detection electrodes (RX1 in column B4) arranged in the second line corresponding to The signal may be coupled to one trace.

[0430] Similarly, the second line corresponds to the driving electrode of the first row (TX1 of column A2). The touch signal detection electrode (RX6 in column B4) and the drive electrode (TX3 in column A2) in the second row are The touch signal detection electrode (RX6 in row B4) arranged in the first line corresponding to The signal may be coupled to one trace.

[0431] That is, the second electrodes arranged at positions symmetrical to each other with respect to the row direction are may be coupled to the traces of

[0432] FIG. 45a shows an embodiment in which the size of the RX electrode in FIG. 44 is modified. FIG. 45b is a diagram showing some electrodes and traces connecting the electrodes in FIG. 45a. .

[0433] In Fig. 45a and Fig. 45b, the principle explained above in Fig. 44 may be applied in the same / similar manner. However, in Figure 44, row B1 is arranged as RX0-RX7-RX7-RX0. In comparison with Figure 45a and Figure 45b, column B1 is RX0-RX31-RX0. That is, the two RX7s in FIG. 44 may be arranged in the same manner as in FIG. 45a and FIG. In the example shown in FIG. 5b, one RX31 is arranged. In this case, the driving electrode TX0 in the A1 row is As a reference, RX0 and RX31 are arranged on one side, and the driving electrode TX With reference to 2, RX31 and RX0 are disposed on the one side.

[0434] In FIG. 45a and FIG. 45b, the length of the touch signal detection electrode is the same as the length of the driving electrode. In the above embodiment, the area of ​​the touch signal detection electrode is half the area of ​​the driving electrode. The scope of the rights is not limited to this.

[0435] In FIG. 45a and FIG. 45b, the touch signal detection electrodes and the drive electrodes are not parallel to each other. In other words, the center points of the touch signal detection electrodes and the drive electrodes are and are not collinear with each other and are therefore offset from each other.

[0436] That is, referring to FIG. 45b, in response to the driving electrode in the first row (TX1 in column A2), The touch signal detection electrodes (RX1 and RX30 in column B4) may be arranged adjacent to each other, The touch signal detection electrodes (RX30 and RX1 in row B4) correspond to the drive electrodes (TX3 in row A2). ) may be arranged adjacent to each other. Similarly, the driving electrodes in the second row (TX 3) The touch signal detection electrodes (RX30 and RX1 in row B4) are arranged adjacent to each other. In the third row, the touch signal detection electrode (R X1 and RX30) may be arranged adjacent to each other. The touch signal detection electrodes arranged in contact with each other can form mutual capacitance with each other. And RX1 in row B4 corresponding to TX1 in row A2 and TX3 in row B4 corresponding to TX3 in row A2 RX1 in row B4 may be connected to one trace, and TX3 in row A2 may be connected to RX 30 and RX30 in row B4 corresponding to TX5 in row A2 may be connected to one trace. .

[0437] However, this is not only between column A2 and column B4, but also between column A2 and column B3. It may be applied between rows A1 and B1, and between rows A1 and B2, as well as between the touch sensor. The same / similar rules may be applied to all A and B strings included in the same container.

[0438] FIG. 46 shows an embodiment in which the electrode connection method is partially modified based on FIG. 45a and FIG. 45b. do.

[0439] FIG. 46 may be applied in the same or similar manner to the principles described above in FIG. 45a and FIG. 45b. .

[0440] In the case of FIG. 46, the touch signal detection electrode corresponds to the drive electrode in the first row (TX1 in column A2). (RX1 and RX30 in column B4) may be arranged adjacent to each other, and the driving electrodes in the second row ( The touch signal detection electrodes (RX30 and RX1 in row B4) are arranged adjacent to each other in correspondence with the touch signal detection electrodes (TX3). Similarly, the touch panel 12 may be connected to the driving electrode 2 (TX3 in column A2). The signal detection electrodes (RX30 and RX1 in column B4) may be arranged adjacent to each other, and the driving The touch signal detection electrodes (RX1 and RX30 in row B4) correspond to the electrodes (TX5 in row A2). They may be located adjacent to each other.

[0441] In addition, the touch signal detection electrode (column B3) corresponds to the drive electrode (column A2, TX1) in the first row. The driving electrodes in the second row (TX3 in column A2) may be arranged adjacent to each other. The touch signal detection electrodes (RX30 and RX1 in column B3) may be arranged adjacent to each other. Similarly, a touch signal detection signal is detected corresponding to the drive electrode in the second row (TX3 in column A2). The output electrodes (RX30 and RX1 in column B3) may be arranged adjacent to each other, and the driving electrodes (A The touch signal detection electrodes (RX1 and RX30 in row B3) are adjacent to the touch signal detection electrodes (TX5 in row B2). That is, each drive electrode and each touch signal disposed adjacent to each drive electrode may be arranged on the substrate. The signal detection electrodes can form mutual capacitance with each other.

[0442] And the third trace that connects RX1 and RX1 in row B3 is RX1 and RX1 in row B4. Trace 4 connects RX30 in row B3 to RX30 in row B4. It can be seen that up to RX30 has been linked.

[0443] Referring to FIG. 45b, it can be seen that the RX electrodes are connected with eight traces.

[0444] That is, in column B1, the first trace that connects RX0 and RX0 and the second trace that connects RX31 and RX31 The connecting trace 2 is placed, and similarly, traces 3 and 4 are placed in row B2. is placed, traces 5 and 6 are placed in column B3, traces 7 and You can see that trace number 8 has been placed.

[0445] In comparison, in Figure 46, the first trace connecting RX0 and RX0 in row B1 is Tray 2 connects RX0 and RX0 in row B2, and RX31 and RX31 in row B1. You can see that the bus is connected to RX31 and RX31 in row B2. Trace 3, which connects RX1 and RX1 in column 3, connects to RX1 and RX1 in column B4, Trace 4, which connects RX30 and RX30 in row 3, connects to RX30 and RX30 in row B4. It is clear that the conclusion was reached.

[0446] That is, according to FIG. 46, the RX electrodes constituting the same channel are arranged not only vertically but also horizontally. The number of traces connecting the RX electrodes is increased compared to FIG. 45b. It can be seen that it has been reduced by half.

[0447] This is because the traces connecting the RX electrodes arranged in the first row are connected to the The trace is then used to bypass the top of the electrode and connect it to an identical RX electrode in the second row. In particular, the T The traces can be bypassed above the X and RX electrodes (dotted area). Now, some of the traces will be located above the TX and RX electrodes in the first row. It will be possible to place

[0448] If a part of the trace is placed above the RX electrode, the trace is the touch The input device can be inserted into the top of the bezel (not shown). The area (not including the touch input device) is the outer edge area of ​​the area where the image of the touch input device is displayed. The upper, lower, left and right parts may be included based on the area where the image is displayed, and the electrode is disposed above the electrode. The traces to be placed can be placed on top of the bezel portion.

[0449] The traces placed on the upper side of the RX electrode are composed of horizontal traces. Lace is difficult to use in product manufacturing due to its visibility issue, but as shown in Figure 46, If only a small space of about 1 m is allocated to the horizontal trace, visibility is not affected. In particular, if the horizontal traces are placed on the top of the bezel, it will affect visibility. This means that the impact of the above is eliminated and the number of traces can be reduced.

[0450] In the case of Figure 46, part of the No. 1 trace is on the left side of the electrode in row B1 and on the right side of the electrode in row B2. However, part of the 2nd trace is placed to the right of the B1 row electrode and to the left of the B2 row electrode. This will place trace 1 further outboard than trace 2. This may be applied identically / similarly to traces 3 and 4.

[0451] FIG. 47 shows an embodiment in which the electrode connection method is partially modified based on FIG.

[0452] The same / similar principles as those described above in FIG. 45 may be applied to FIG.

[0453] If Figure 46 shows the connection of RX electrodes that constitute the same channel, Figure 47 shows the connection of RX electrodes that constitute the same channel. It is understood that the TX electrodes that make up the panel are connected to the horizontal traces, reducing the number of traces. It is possible.

[0454] As shown in FIG. 47, each driving electrode TX0 constituting the same channel is connected to one trace. If this is the case, the number of traces in each column to which TX0 belongs will be reduced by one. That's why.

[0455] In particular, among the driving electrodes arranged in the first row of the touch sensor, Each drive electrode TX0 constituting the touch sensor is connected to one trace as shown in FIG. The traces may be arranged on the upper side. In other words, the first row may be configured as the same channel. Each TX0 may be coupled to one of the traces on their upper side.

[0456] According to FIG. 47, any TX electrodes (e.g., TX0) constituting the same channel are connected. Only one trace may be placed, and other TX electrodes (e.g., TX 1) cannot be placed to connect to other traces.

[0457] In FIG. 47, one trace is connected to TX0. TX1 can be connected to one trace.

[0458] If a trace is placed at the top of the first row, the trace will The power supply can be inserted into the top of the bezel (not shown). The first is the outer edge area of ​​the area where the image of the touch input device is displayed, and the second is the outer edge area of ​​the area where the image of the touch input device is displayed. may include upper, lower, left and right parts based on the area where the electrode is displayed, and may be disposed above the electrode. The traces to be mounted can then be placed on top of the bezel portion.

[0459] The trace is composed of horizontal traces, but generally, visibility of horizontal traces is an issue. It is difficult to apply it to product manufacturing, but as shown in Figure 47, it is possible to use small particles of about 50 μm in size. If only space is allocated to the horizontal trace, it will not affect visibility. If the base is placed at the top of the bezel, it will not affect visibility and , so that the number of traces can be reduced.

[0460] FIG. 48 shows an embodiment in which the electrode connection method is partially modified based on FIG.

[0461] The same / similar principles as those described above in FIG. 45 may be applied to FIG.

[0462] Figure 48 shows a TX electrode that is connected to a horizontal trace, as in Figure 47. However, the total number of traces constituting the A channel is All TX electrodes TX0 are not connected to a single trace. The TX0 of the part can be connected to one trace. Also, the A channel and the B channel can be different. A part of the TX electrodes TX1 constituting the panel can be connected using one trace. can.

[0463] Figure 47 shows how the number of traces is reduced by 7 by concatenating all the identical TX0s into one trace. However, in (-7), Figure 48 only connects some of the same TX0s to one trace. So we can see that the number of traces has decreased by 5 (-5).

[0464] In the case of FIG. 48, the resistance of the electrode pattern is relatively reduced while the trace is being trained, as compared with FIG. For example, in the case of Figure 47, all TX Since 0's are concatenated into a single trace, the single trace becomes longer. In this case, in the process of connecting TX0 in row A1 to TX0 in row A15, If the resistance value of TX0 in row A1 is R1, then the resistance value of TX0 placed in row A15 is R1. This is because the length between the first TX0 and the last TX0 In comparison, in the case of Figure 48, TX0 and A3 in row A1 are A trace connects the TX0 column and the TX1 column. The length of the trace is shorter than that of Figure 47. , the resistance value of TX0 in row A3 will be smaller than that in FIG.

[0465] As a result, the effect of reducing the number of traces is relatively lower than in Figure 47, but the electrode pattern This has the advantage that the resistance of the wire can be relatively reduced.

[0466] In particular, among the driving electrodes arranged in the first row of the touch sensor, A part of each driving electrode TX0 constituting the wiring is connected to one trace, and the wiring is formed as shown in FIG. In other words, the first row may have traces on the top side of the same channel. Some of the TX0s constituting the loop may be connected to the one trace on their upper sides.

[0467] Some of the TX0s are connected to one A trace, so next we connect some of the TX1s to one Then, one B trace is connected to another A trace. In this case, the driving electrodes arranged in the first row are connected to the first gate.

[0468] In FIG. 48, one trace connects two TX electrodes. The scope of the rights is not limited thereto.

[0469] If a trace is placed at the top of the first row, the trace will 1 and 2. The force sensor 100 is adapted to receive the force sensor 102 through the top of the bezel portion (not shown) of the force sensor 102.

[0470] The bezel portion (not shown) is an outer edge area of ​​the area where an image of the touch input device is displayed. This may include the top, bottom, left, and right parts based on the area where the image of the touch input device is displayed. This allows the traces located on the top side of the electrodes to be placed on top of the bezel portion.

[0471] The trace is composed of horizontal traces, but generally, visibility of horizontal traces is an issue. It is difficult to apply this to product manufacturing, but as shown in Figure 48, small voids of about 50 μm in size can be If only the space between the two is allocated to the horizontal trace, it will not affect visibility. If the sensor is placed at the top of the bezel, it will not affect visibility and This makes it possible to reduce the number of traces.

[0472] Each of the examples described above in Figures 38 to 48 applies only to the specific electrodes and electrode arrays illustrated in the examples. Instead of using the same / similar electrodes for all the corresponding electrodes and electrode columns in the touch sensor panel, may be applied similarly.

[0473] The features, structures, effects, etc. described in the above embodiment are merely examples of the present invention. The present invention is not limited to only one embodiment. The features, structures, effects, etc. illustrated in the embodiments are within the scope of the ordinary skill in the art to which the embodiments pertain. It is possible for a person having knowledge to combine or modify the present invention with other embodiments. Therefore, all such combinations and modifications are within the scope of the present invention. should be interpreted as

[0474] In addition, the embodiment has been described above, but this is merely an example. The present invention is not intended to limit the scope of the present invention, and any person having ordinary skill in the art will understand the present invention. Various modifications and applications not exemplified above are possible without departing from the essential characteristics of this embodiment. For example, each component specifically shown in the embodiment may be The present invention can be modified and implemented. And the differences between such modifications and applications should be construed as falling within the scope of the present invention as defined in the appended claims. be.

Claims

1. 1. A touch input device having a touch surface, comprising: a touch sensor including a plurality of electrodes; A drive signal is applied to at least a part of the electrodes of the touch sensor. A drive unit having a At least some of the electrodes of the touch sensor are connected to the touch surface a touch signal detection unit for detecting a signal associated with a touch position of an object input to the touch panel; At least some of the electrodes of the touch sensor are connected to the touch surface an LGM interference signal detector for detecting a signal related to an LGM interference signal generated by the 1. A touch input device comprising:

2. The signal associated with the touch position is received by at least one of the plurality of electrodes of the object. information on the amount of change in mutual capacitance between some of the electrodes; The signal associated with the LGM interference signal is a signal associated with the object and at least one of the plurality of electrodes. Reduce the amount of change in mutual capacitance caused by coupling between some electrodes The touch input device of claim 1 including capacitance information.

3. The signal associated with the touch position is transmitted to the object and at least a part of the plurality of electrodes. A capacitance between the electrodes is reduced by reducing the amount of change in mutual capacitance caused by coupling between the electrodes. Includes capacity information, The signal associated with the LGM interference signal is received from at least some of the electrodes. The touch input device of claim 2 , wherein the information does not include information on the amount of change in mutual capacitance between the first and second electrodes.

4. Control of suppressing a signal related to the LGM interference signal from a signal related to the touch position. part, The touch signal detector converts a signal related to the touch position into a digital signal and outputs the digital signal. With all our might, The LGM interference signal detector converts a signal related to the LGM interference signal into a digital signal. Convert it and output it. The control unit converts the touch position into a digital signal and outputs the digital signal to the touch sensor. The present invention is characterized in that a signal related to the LGM interference signal converted into a digital signal is suppressed. The touch input device of claim 1 .

5. The touch sensor includes a plurality of driving electrodes and a plurality of touch signal detection electrodes; The touch signal detection unit detects the driving electrodes among the plurality of touch signal detection electrodes. At least one of the touch signals forming a mutual capacitance with at least one of the driving electrodes. a signal associated with a touch position of an object input to the touch surface from the signal detection electrode; The LGM interference signal detection unit detects at least one of the plurality of touch signal detection electrodes. At least one other touch signal detection electrode that does not form a mutual capacitance with one drive electrode detecting a signal associated with the LGM jamming signal from the The touch input device of claim 1 .

6. The signal associated with the touch position is transmitted between the object and the at least one driving electrode. A coupling between the object and the at least one touch signal detection electrode. a capacitance reducing means for reducing the mutual capacitance caused by at least one of the Contains information, The signal associated with the LGM interference signal is a signal between the object and the at least one driving electrode. and a coupling between the object and the at least one other touch signal detection electrode. a capacitance reducing means for reducing the mutual capacitance caused by at least one of the couplings; Including capacitance information, The touch input device of claim 5.

7. The at least one touch signal detection electrode is adjacent to the at least one driving electrode. They are arranged in a The at least one other touch signal detection electrode is provided with the at least one driving electrode. and are spaced apart from the at least one touch signal sensing electrode. connected to the channel the at least one touch signal detection electrode and the at least one other touch signal detection electrode At least one of the driving electrodes disposed between the electrodes is set to ground or At least one touch signal detection electrode is set to the ground. The touch input device of claim 5.

8. The total area of ​​the at least one other touch signal detection electrode is is equal to the total area of ​​the touch signal detection electrodes; The touch input device of claim 5.

9. The touch sensor includes a plurality of drive electrodes, a plurality of touch signal detection electrodes, and a plurality of LGMs. Including a jamming signal detection electrode; The touch signal detection unit detects the driving electrodes among the plurality of touch signal detection electrodes. At least one of the touch signals forming a mutual capacitance with at least one of the driving electrodes. a signal associated with a touch position of an object input to the touch surface from the signal detection electrode; The LGM interference signal detection unit detects the at least one of the plurality of LGM interference signal detection electrodes. At least one LGM interference signal detection electrode that does not form a mutual capacitance with one driving electrode. detecting a signal associated with the LGM jamming signal from a pole; The touch input device of claim 1 .

10. The signal associated with the touch position is transmitted between the object and the at least one driving electrode. A coupling between the object and the at least one touch signal detection electrode. a capacitance reducing means for reducing the mutual capacitance caused by at least one of the Contains information, The signal associated with the LGM interference signal is a signal between the object and the at least one driving electrode. and a coupling between the object and the at least one LGM interference signal detection electrode. a capacitance reducing means for reducing the mutual capacitance caused by at least one of the couplings; Including capacitance information, The touch input device of claim 9.

11. The plurality of LGM interference signal detection electrodes are connected to the plurality of touch signal detection electrodes. It is placed inside The centers of the respective LGM interference signal detection electrodes and the respective touch signal detection electrodes The centers of each of these coincide. The touch input device of claim 9.

12. The total area of ​​the plurality of LGM interference signal detection electrodes is is equal to the sum of the areas, The touch input device of claim 11.

13. The at least one touch signal detection electrode is connected to the at least one driving electrode. At least one LGM interference signal detection electrode is disposed between the The at least one touch signal detection electrode is set to ground. The touch input device of claim 9.

14. The plurality of touch signal detection electrodes and the plurality of LGM interference signal detection electrodes are The driving electrode and the electrode are disposed in different layers. A first region in which the driving electrodes overlap the touch signal detection electrodes. a second driving electrode overlapping the LGM interference detection electrodes; More than two regions, The touch input device of claim 9.

15. The plurality of LGM interference signal detection electrodes are connected to the plurality of touch signal detection electrodes. It is placed inside The centers of the respective LGM interference signal detection electrodes and the respective touch signal detection electrodes The centers of each of these coincide. The touch input device of claim 14.

16. The total area of ​​the plurality of LGM interference signal detection electrodes is is equal to the sum of the areas, The width of the first region is greater than the width of the second region. The touch input device of claim 14.

17. The touch sensor includes a plurality of driving electrodes and a plurality of touch signal detection electrodes; The touch signal detection unit detects the driving electrodes among the plurality of touch signal detection electrodes. At least one of the touch signals forming a mutual capacitance with at least one of the driving electrodes. a signal associated with a touch position of an object input to the touch surface from the signal detection electrode; The LGM interference signal detection unit detects the driving electrodes of the plurality of touch signal detection electrodes. At least one of the electrodes does not form a mutual capacitance with at least one other driving electrode. detecting a signal associated with the LGM interference signal from one touch signal detection electrode; The touch input device of claim 1 .

18. The signal associated with the touch position is transmitted between the object and the at least one driving electrode. A coupling between the object and the at least one touch signal detection electrode. a capacitance reducing means for reducing the mutual capacitance caused by at least one of the Contains information, The signal associated with the LGM interference signal is transmitted to the object and to at least one other driving electrode. and a coupling between the object and the at least one touch signal detection electrode. a capacitance reducing means for reducing the mutual capacitance caused by at least one of the couplings; Including capacitance information, 20. The touch input device of claim 17.

19. 1. A touch input device having a touch surface, comprising: A plurality of first electrode rows including a plurality of first electrodes and a plurality of second electrode rows including a plurality of second electrodes. a touch sensor configured as a A second electrode row is disposed on one side of the first electrode row, the second electrode row being one of the first electrode rows. and a second electrode row is disposed on the other side of the first electrode row, The first electrodes in the first electrode row are arranged around the first electrodes in the second electrode row. the second electrode and the other second electrodes included in the other second electrode rows constitute the same channel, The first electrode is in the same channel as some of the first electrodes arranged in the same row as the first electrode. Constructing a channel Touch input device.

20. 1. A touch input device having a touch surface, comprising: A plurality of first electrode rows including a plurality of first electrodes and a plurality of second electrode rows including a plurality of second electrodes a touch sensor configured as: A second electrode row is disposed on one side of the first electrode row, the second electrode row being one of the first electrode rows. and a second electrode row is disposed on the other side of the first electrode row, The first electrodes in the first electrode row are arranged around the first electrodes in the second electrode row. the second electrode and the other second electrodes included in the other second electrode rows constitute the same channel, The first electrodes included in the first electrode row are connected to the second electrode row on the one side. The second-1 electrode and the second-2 electrode are disposed adjacent to each other, The first electrodes are arranged on the first side of the second electrode row. The second-third electrode and the second-fourth electrode are disposed adjacent to each other, The 2-1 electrode and the 2-3 electrode are connected to a second trace. the electrode and the second-fourth electrode are connected to another second trace; Touch input device.

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