WO2012134026A1 - 접촉 감지 장치 및 방법 - Google Patents
접촉 감지 장치 및 방법 Download PDFInfo
- Publication number
- WO2012134026A1 WO2012134026A1 PCT/KR2011/008900 KR2011008900W WO2012134026A1 WO 2012134026 A1 WO2012134026 A1 WO 2012134026A1 KR 2011008900 W KR2011008900 W KR 2011008900W WO 2012134026 A1 WO2012134026 A1 WO 2012134026A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electrodes
- axis
- signal
- value
- controller chip
- Prior art date
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
- G06F3/04182—Filtering of noise external to the device and not generated by digitiser components
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04104—Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger
Definitions
- the present invention relates to a touch sensing device and method, and more particularly, to a single-layer structure touch sensing device and method capable of determining one or more touch inputs obtained sequentially.
- the touch screen which is a typical touch sensing device, can be classified into resistive film, capacitive, ultrasonic, and infrared type according to its operation method. Among them, the capacitive touch screen has excellent durability, long life, and multi-touch function. In recent years, the field of application is expanding.
- the capacitive touch screen uses a self-capacitance generated between the contact object and the sensing electrode to determine a contact input, and applies a predetermined driving signal and between the plurality of sensing electrodes by the contact object.
- the mutual input generated by the mutual capacitance can be divided into a method of determining the contact input.
- the method using the self capacitance may be simple in circuit configuration and easy to implement, but may not facilitate multi-touch determination.
- the method using the mutual capacitance has an advantage over the method using the self capacitance in the multi-touch determination, but can be thick because it must be implemented in a two-layer structure.
- the electrode pattern of a general two-layer touch screen may be formed of an indium tin oxide (ITO), etc., a transparent conductive material connected in a specific direction, and a plurality of electrodes connected on a second axis may be formed of a first axis.
- ITO indium tin oxide
- the plurality of electrodes connected to the plurality of sensing channels on the first axis, and the plurality of electrodes connected on the first axis may be connected to the plurality of sensing channels on the second axis.
- the sensing signals obtained from the plurality of sensing channels in the X axis direction are used to determine the X coordinate of the contact position, and the plurality of signals in the Y axis direction.
- the sensing channel of may be used to determine the Y coordinate.
- the user touches two points such as the third position on the X axis and the third position on the Y axis (X3, Y3), the sixth position on the X axis, and the fifth position on the Y axis (X6, Y5) by a ghost phenomenon or the like.
- two points may be misidentified as the sixth position on the X axis and the third position on the Y axis (X6, Y3), and the third position on the X axis and the fifth position on the Y axis (X3, Y5).
- the XN electrode and the YM electrode are combined, for example, each X electrode is sequentially driven (excited), and at this time, the mutual capacitance of the two-layer structure that senses a change in signal from each Y electrode. (mutual-capacitance) method may be adopted, but the 2-layer mutual capacitance method may increase the thickness of the touch screen panel.
- One embodiment of the present invention is to provide a touch sensing device and method capable of accurately determining a plurality of touch inputs as a single layer structure.
- One object of the present invention is to provide a touch sensing apparatus and method capable of implementing a multi-touch function without a ghost phenomenon using a mutual capacitance method in a single-layer touch sensing apparatus.
- a touch sensing apparatus includes a substrate, a plurality of first electrodes formed on the substrate, a plurality of second electrodes formed on the substrate, and the plurality of first electrodes and the plurality of second electrodes. And a controller chip for acquiring a signal from an electrode to determine a contact input, wherein the controller chip removes a value of a predetermined ratio of each signal value from another signal value.
- the plurality of first electrodes and the plurality of second electrodes may be disposed on the same surface of the substrate.
- the plurality of first electrodes may be sensing electrodes
- the plurality of second electrodes may be driving electrodes electrically separated from the plurality of first electrodes
- the controller chip may remove a value of a predetermined ratio of the respective signal values from the other signal values having a lower priority based on the order in which the signals are obtained by the plurality of second electrodes. have.
- the plurality of first electrodes are disposed in the form of a sensing bar that extends along a first axis direction, respectively, and the plurality of second electrodes each has a second axis crossing the first axis direction. Can be arranged in a direction.
- the touch sensing method includes obtaining a signal from a plurality of first electrodes and a plurality of second electrodes formed on one surface of a substrate, and determining a contact input based on the signal, The determining of the touch input includes removing a value of a predetermined ratio of each signal value from another signal value.
- the determining of the contact input may include sequentially setting values of predetermined ratios of the respective signal values based on the same direction as the order in which the signals are acquired by the plurality of second electrodes.
- the method may further include removing a signal value of a lower priority among the other signal values.
- a single layer structure may accurately determine a plurality of contact inputs.
- a multi-touch function without a ghost phenomenon using mutual capacitance may be implemented in a single-layer touch sensing device.
- FIG. 1 is a view showing the configuration of a touch sensing apparatus according to an embodiment of the present invention.
- FIG. 2 is a diagram illustrating a configuration of a touch sensing apparatus according to another embodiment of the present invention.
- FIG. 3 is a diagram illustrating an example of multi-touch recognition through a touch sensing apparatus according to another embodiment of the present invention.
- FIG. 4 is a flowchart illustrating a touch sensing method according to an embodiment of the present invention.
- FIG. 1 is a view showing the configuration of a touch sensing apparatus according to an embodiment of the present invention.
- the touch sensing apparatus 100 includes a substrate 110, a plurality of first electrodes 120 formed on the substrate 110, and a plurality of formed on the substrate.
- the controller chip 140 may be configured to acquire signals from the second electrode 130, the plurality of first electrodes 120, and the plurality of second electrodes 130 to determine a contact input.
- the controller chip 140 may determine the contact input based on a mutual capacitance change generated between the plurality of first electrodes 120 and the plurality of second electrodes 130.
- the first electrode 120 may be referred to as a sensing electrode for sensing a sensing signal
- the second electrode 130 may be assumed to be a driving electrode electrically separated from the first electrode 120 for sensing a driving signal.
- the controller chip 140 of FIG. 1 may apply a signal to at least some of the plurality of second electrodes 130, and may obtain the signals from the plurality of first electrodes 120 to determine the contact input.
- the controller chip 140 of the present invention removes the value of the predetermined ratio of the respective signal values from the other signal values.
- the touch sensing apparatus 100 of the present invention may be disposed on the left and right bezel regions of the substrate 110, and may include a wiring pattern 150 electrically connected to the plurality of electrodes 120 and 130, and the wiring pattern 150. ) May extend to one end of the substrate 110 and include a bonding pad (not shown) for electrically connecting to a circuit board (not shown) on which the controller chip 140 is mounted.
- the substrate 110 is a support plate on which a plurality of electrodes 120 and 130, a wiring pattern 150, a bonding pad, and the like are disposed, and a circuit board on which the controller chip 140 is mounted is attached by an ACF process or the like.
- PC, PI, tempered glass, sapphire glass and the like can be provided.
- the touch sensing device 100 of the present invention is a touch screen attached to a display device, it is preferable to use a material having excellent light transmittance, such as the aforementioned material.
- the plurality of first electrodes 120 and the plurality of second electrodes 130 may be disposed on the same surface of the substrate 110 to form a structure of a touch sensing device having a single layer structure.
- the plurality of second electrodes 130 may be disposed on the substrate 110 in a patch form.
- the substrate 110 may be manufactured as a transparent window, and the plurality of first electrodes 120, the plurality of second electrodes 130, and the wiring pattern 150 may be integrally formed with the transparent window.
- each of the plurality of first electrodes 120 may be disposed in the form of a sensing bar extending along the first axis, and the plurality of second electrodes 130 intersect the first axis, respectively. Can be disposed on the second axis.
- At least some of the plurality of second electrodes 130 may be electrically connected to another plurality of second electrodes 130 disposed on the same second axis.
- the electrodes positioned on the same second axis among the plurality of second electrodes 130 may be electrically connected to each other in the wiring pattern 150.
- a first axis corresponds to a horizontal direction (X-axis direction)
- a second axis corresponds to a vertical direction (Y-axis direction)
- one first electrode 120 and eight second electrodes 130 are formed.
- the sensing region 160 may be formed, and the entire touch sensing panel 100 may include a total of seven sensing regions 160.
- the sensing region of the present invention is not limited to the inclusion relationship between the plurality of first electrodes 120 and the plurality of second electrodes 130, and may be implemented in various forms.
- one second electrode 130 and a partial region of the first electrode 120 around the second electrode 130 may be identified as one sensing area.
- a total of 56 sensing regions 160 may be included in the entire touch sensing apparatus 100.
- sensing region used throughout this specification is not a region defined by a sensing channel connected to the controller chip 140 or a sensing electrode that is physically and electrically separated, and may determine a user's touch input. It should be understood as a certain unit area where possible.
- the plurality of first electrodes 120 and the plurality of second electrodes 130 and the controller chip 140 and the wiring pattern 150 disposed in the left and right bezel regions of the substrate 110, respectively; Can be electrically connected.
- the present invention by connecting at least a portion of the plurality of second electrodes 130 disposed on the same second axis to one wiring pattern 150, the number of wiring patterns 150 and the corresponding bezel The width of the area can be reduced.
- the wiring pattern 150 is based on the second axis via each center of the plurality of first electrodes 120 arranged to extend on the first axis as shown in FIG. It can be arranged symmetrically, by this arrangement form can define the number and direction of applying the feedback algorithm, detailed algorithm application example will be described again below.
- the wiring pattern 150 disposed in the effective display area of the touch sensing device attached to the display device of the present invention may be formed of a transparent conductive material such as ITO, ZnO, IZO, CNT, or the like.
- a plurality of ground wires may be formed along the first axis on the substrate 110 above and below the plurality of first electrodes 120. Can be.
- the plurality of ground wires are formed to be spaced apart from the plurality of first electrodes 120 to be electrically insulated from each other, and may be electrically connected to the ground of the substrate 110.
- the plurality of ground wires are formed on the substrate 110 of the upper and lower portions of the plurality of first electrodes 120, the plurality of first electrodes 120 and the plurality of second electrodes Since the capacitance generated between the 130 can be lowered, it is possible to further remove the noise component according to the contact input.
- a plurality of second electrodes 130 disposed on the same second axis are electrically connected to each other by a wiring pattern 150, and each second electrode 130 sequentially receives a signal. Can be authorized.
- the first electrode 120 is a sensing electrode and the second electrode 130 is a driving electrode, and each second electrode 130 illustrated in FIG. It is assumed that the driving electrodes 1-1 to 1-8 are described.
- each of the signals is transmitted through a wire disposed in close proximity to the first electrode 120. Since mutual capacitance recognition may occur between the transferred wiring pattern 150 and the first electrode 120, a signal obtained through the wiring pattern 150 may act as a noise signal that prevents accurate contact input determination. have.
- the wiring connected to the driving electrodes 1-2 to the driving electrode 1-7 may be calculated differently from the actual position.
- the touch sensing apparatus 100 when the driving signal is applied through the second electrode 130, which is a driving electrode, the touch sensing apparatus 100 according to the one side of the present invention may be configured to include the first electrode 120 corresponding to the driving signal.
- the contact input may be determined by acquiring a driving signal.
- the wiring pattern 150 refers to the second axis passing through each center of the plurality of first electrodes 120 arranged to extend on the first axis.
- the signal distribution obtainable by the controller chip 140 may be represented by a two-dimensional matrix as shown in Table 1 below.
- a signal having a substantially similar intensity can be obtained from the sensing electrode 1.
- Sensing electrode 1 senses even when signals are acquired across drive electrode 1-3 and drive electrode 1-4 due to the wiring connected to drive electrode 1-3 and drive electrode 1-4 across the area corresponding to contact input A The signal can be detected.
- the coordinates on the second axis (Y-axis direction) of the contact input A may be accurately calculated, but the first The coordinates on the axis (X-axis direction) may be calculated by being offset to the right of the coordinates on the first axis (X-axis direction) of the actual contact input A or may be recognized as multi-touch, thereby providing a data processing process for correcting this. do.
- the controller chip 140 may be removed from the other signal value of the lower priority based on the order in which the signals are obtained by the plurality of second electrodes 130.
- the controller chip 140 may remove the value of the predetermined ratio of the respective signal values on the first axis from the other signal values of the subordinate order by the number M corresponding to Equation 1 below. Can be.
- N is the number of the plurality of second electrodes 130 disposed on the same first axis
- M is an integer.
- the ratio is preferably applied within the range of 5% to 15%.
- data is sequentially removed based on the order in which signals are obtained from the second electrode 130.
- each of the signal values sequentially obtained on the same sensing electrode may be removed from the value of another signal having a lower priority.
- the other drive electrode by applying a predetermined ratio to the signal value of the drive electrode 1-1 Phosphorus may be removed from the signal values of the driving electrodes 1-2 to 1-8, and sequentially removed from the signal values of the driving electrodes 1-3 to 1-8 by applying a predetermined ratio to the signal values of the driving electrodes 1-2. You can repeat the method.
- the signal obtained on the same first axis is identified.
- the value can be removed from other signal values in the subordinated order.
- the wiring pattern 150 is symmetrically with respect to the second axis passing through each center of the plurality of first electrodes 120 arranged to extend on the first axis. Can be arranged.
- the driving electrodes 1-1 to 1-4 are connected to the wiring pattern 150 disposed along the left bezel area, and the driving electrodes 1-5 to 1-8 are the right bezel area. It may be connected to the wiring pattern 150 disposed along the.
- the wiring pattern 150 having the structure as shown in FIG. 1 and the connection relationship with the driving electrodes, it is preferable to proceed from the left and the right sides based on the driving electrodes 1-4 and 1-5, respectively.
- the controller chip 140 is the number of the plurality of second electrodes 130 disposed on the same first axis is N, the direction in which the signal is obtained toward the axis of symmetry of the wiring pattern 150
- the value of the predetermined ratio of the respective signal values on the first axis may be removed from the other signal values of the subsequent ranks by the number M corresponding to Equation 2 below.
- N is the number of the plurality of second electrodes 130 disposed on the same first axis.
- M has an integer value, and even when the number is odd, M is rounded to an integer number.
- the signal value by the corresponding driving electrode is multiplied by a predetermined ratio, and the calculated value is subordinated.
- the process of removing all from the signal value of the second electrode 130 on the other first axis is performed three times in total.
- the signal value by each driving electrode is multiplied by a predetermined ratio, and the calculated value May be removed from the signal values of the second electrode 130 on the other first axis of the subordinate order.
- the signal values of the group 1 obtained sequentially from the sensing electrode 1 by the respective driving electrodes 1-1 to 1-4 are [30, 33, 6, 6], and the predetermined ratio is 10.
- the value '3' obtained by multiplying the signal value '30' by the driving electrode 1-1 by 0.1 among the signal values of the group 1 is '33', '6' and '6' You can remove them all.
- the second algorithm for the driving electrode 1-2 is applied.
- the signal values of the two groups sequentially obtained from the sensing electrode 1 by each of the driving electrodes 1-1 to 1-4 are [30, 30, 3, 3], and it is assumed that a predetermined ratio is 10%.
- the value '3' obtained by multiplying the signal value '30' by the driving electrodes 1-2 by 0.1 may be removed from the signal values '3' and '3' of other subordinated ranks.
- the third algorithm for the driving electrodes 1-3 is repeatedly applied.
- the signal values of the three groups sequentially obtained from the sensing electrode 1 by the driving electrodes 1-1 to 1-4 are [30, 30, 0, 0], and a certain ratio is 10%.
- the signal value of the driving electrodes 1-3 among the signal values of the three groups is '0', the same value may be obtained even when all of the signal values of the other driving electrodes are removed.
- the sensing electrode 1 when the sensing signal is applied through the wire passing through the sensing region 160 where the contact is not actually applied, such as the driving electrodes 1-3 and 1-4, the sensing electrode 1 appears.
- the noise signal can be eliminated to more accurately determine the contact input.
- the wiring pattern 150 and the first electrode 120 so that the mutual capacitance generated between the wiring pattern 150 and the first electrode 120 is not easily changed by a contact object such as a finger. It is desirable to make the width of the gap as short as possible to strengthen the coupling of mutual capacitances.
- the gap between the wiring connected to the second electrode 130 and the first electrode 120 according to an embodiment of the present invention is preferably 1 ⁇ m or less.
- FIG. 2 is a diagram illustrating a configuration of a touch sensing apparatus according to another embodiment of the present invention.
- a combination of a plurality of first electrodes 220, a plurality of second electrodes 230, and a controller chip 240 disposed on the substrate 210 ( The arrangement and connection state) are the same as those of FIG. 1 described above, whereas the wiring patterns 250 connected to the electrodes 220 and 230 may be arranged differently.
- the touch sensing apparatus 200 may be applied in the same manner as described above to the first algorithm. Noise detected in the sensing area 260 including the electrode 220 may be removed.
- the signal distribution that can be obtained from the controller chip 240 when a contact input is applied to the region B of FIG. 2 is shown in the following table. It can be expressed as a matrix of two-dimensional form such as 5.
- the feedback algorithm according to the present invention when all signals on the first axis including the driving electrode 1-1 shown in FIG. 2 are obtained, the signal value by the driving electrode is multiplied by a predetermined ratio and calculated. Values may be removed from the signal values of the second electrode 230 on the other first axis of the subordinate order.
- the signal values of the group 1 obtained sequentially from the sensing electrode 1 by each of the driving electrodes 1-1 to 1-4 are [30, 33, 6, 0], and it is assumed that a predetermined ratio is 10%.
- the value '3' obtained by multiplying the signal value '30' by the driving electrode 1-1 by 0.1 may be removed from the signal values '33', '6', and '0' of other subordinated ranks. Can be.
- the controller chip 140 may recognize as 0 when the signal value from which the value of the preset ratio of each signal value is removed from other signal values is 0 or less, so that the driving electrodes 1-4 The value originally has a value of '-3', but is recognized as '0'.
- the second algorithm for the driving electrode 1-2 is repeatedly applied.
- the signal values of the two groups sequentially obtained from the sensing electrode 1 by the driving electrodes 1-1 to 1-4 are [30, 30, 3, 0], and a certain ratio is 10%.
- the signal value '30' obtained by multiplying the signal value '30' by the driving electrodes 1-2 among the signal values of the two groups 0.1 may be removed from the signal values '3' and '0' of other subordinated ranks.
- the third algorithm of the driving electrodes 1-3 is repeatedly applied.
- the signal values of the three groups sequentially obtained from the sensing electrode 1 by the driving electrodes 1-1 to 1-4 are [30, 30, 0, 0], and a certain ratio is 10%.
- the signal value by the driving electrode 3 among the signal values of the three groups is '0', the same value may be obtained even when all of the signal values of the other driving electrodes are removed.
- the controller chips 140 and 240 of the present invention can obtain a detection signal from which noise components have been removed, and the plurality of first electrodes 120 and 220 based on the maintained detection signal. ) And the contact input may be determined based on the mutual capacitance change generated between the plurality of second electrodes 130 and 230.
- FIG. 3 is a diagram illustrating an example of multi-touch recognition through a touch sensing apparatus according to another embodiment of the present invention.
- the feedback algorithm according to the present invention is applied to the sensing electrode as described above. Noise detected by the first electrode 320 may be removed.
- the wiring pattern 350 passes through each center of the plurality of first electrodes 320 arranged to extend on the first axis on the substrate 310.
- the signal distribution obtainable by the controller chip 340 is two-dimensional as shown in Table 9 below. It can be expressed as a matrix of forms.
- the feedback algorithm according to the present invention may be applied to the sensing electrode 1 and the sensing electrode 3 to which the respective sensing signals are applied by the multi-touch, respectively corresponding to the sensing electrode 1 and the sensing electrode 3.
- a feedback algorithm is applied to each of the sensing area 360 and the sensing area 370 separately.
- the sensing region 360 is multiplied by a predetermined ratio to the signal value of the driving electrodes 1-1 to 1-4, and the calculated value is the other first of the sensing region 360 of the lower priority. All of the signal values of the second electrode 330 on the axis may be removed.
- the sensing area 370 is multiplied by a predetermined ratio to the signal values of the driving electrodes 3-1 to 3-4, and the calculated value is the other first of the sensing area 370 of the lower priority. All of the signal values of the second electrode 330 on the axis may be removed.
- the algorithm execution process may be sequentially performed for each of the sensing areas 360 and 370 as described above, and the final data is shown in Table 10 below.
- the touch sensing method using the touch sensing apparatus according to the embodiment of the present invention is summarized as follows.
- FIG. 4 is a flowchart illustrating a touch sensing method according to an embodiment of the present invention.
- the touch sensing apparatus 100 obtains signals from the plurality of first electrodes 120 and the plurality of second electrodes 130 formed on one surface of the substrate 110. (410).
- the touch sensing apparatus 100 removes the value of the predetermined ratio of each signal value from the other signal values of the lower order based on the order in which the signals are obtained (420). ).
- the touch sensing apparatus 100 determines a touch input based on the signal (430).
- step 430 based on the same direction as the order in which the signals are obtained from the plurality of second electrodes 120, the values of the predetermined ratios of the respective signal values are sequentially changed.
- the step of removing from the signal value may be performed.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Position Input By Displaying (AREA)
Abstract
Description
Claims (22)
- 기판;상기 기판상에 형성되는 복수의 제1 전극;상기 기판상에 형성되는 복수의 제2 전극; 및상기 복수의 제1 전극과 상기 복수의 제2 전극으로부터 신호를 획득하여 접촉 입력을 판단하는 컨트롤러 칩을 포함하고,상기 컨트롤러 칩은, 상기 각각의 신호 값의 기설정된 비율의 값을 다른 신호 값에서 제거하는 접촉 감지 장치.
- 제1항에 있어서,상기 복수의 제1 전극과 상기 복수의 제2 전극은 상기 기판의 동일한 면에 배치되는 것을 특징으로 하는 접촉 감지 장치.
- 제1항 또는 제2항에 있어서,상기 복수의 제1 전극은 감지 전극이고, 상기 복수의 제2 전극은 상기 복수의 제1 전극과 전기적으로 분리된 구동 전극인 것을 특징으로 하는 접촉 감지 장치.
- 제3항에 있어서,상기 컨트롤러 칩은,상기 각각의 신호 값의 기설정된 비율의 값을 상기 복수의 제2 전극에 의해 상기 신호가 획득되는 순서를 기준으로, 후순위의 다른 신호 값에서 제거하는 접촉 감지 장치.
- 제4항에 있어서,상기 컨트롤러 칩은,상기 각각의 신호 값의 기설정된 비율의 값을 후순위의 다른 신호 값에서 제거한 신호 값이 0이하인 경우, 상기 신호 값을 0으로 인식하는 접촉 감지 장치.
- 제5항에 있어서,상기 복수의 제1 전극은 각각 제1축을 따라 연장되어 형성되는 감지 바 형태로 배치되며, 상기 복수의 제2 전극은 각각 상기 제1축과 교차하는 제2축 상으로 배치되는 접촉 감지 장치.
- 제6항에 있어서,상기 복수의 제2 전극과 상기 컨트롤러 칩을 전기적으로 연결하는 배선 패턴을 더 포함하고,상기 복수의 제2 전극 중 동일한 제2축 상에 위치하는 전극은 상기 배선 패턴에서 서로 전기적으로 연결되는 접촉 감지 장치.
- 제7항에 있어서,상기 배선 패턴은,상기 제1축 상으로 연장되어 배치된 상기 복수의 제1 전극의 각 중심을 경유하는 상기 제2축을 기준으로 대칭적으로 배치되는 접촉 감지 장치.
- 제6항에 있어서,상기 하나 이상의 제1 전극 상/하부의 상기 기판 상에 상기 제1축을 따라 형성되는 복수의 그라운드(ground) 배선을 더 포함하는 접촉 감지 장치.
- 제5항에 있어서,상기 기판은 투명 윈도우이며,상기 복수의 제1 전극, 상기 복수의 제2 전극 및 상기 배선 패턴은 상기 투명 윈도우와 일체로서 형성되는 것을 특징으로 하는 접촉 감지 장치.
- 제11항에 있어서,상기 복수의 그라운드 배선은,상기 복수의 제1 전극과 이격된 상태로 형성되어 서로 전기적으로 절연되며, 상기 기판의 그라운드(ground)와 전기적으로 연결되는 접촉 감지 장치.
- 제1항에 있어서,상기 복수의 제2 전극은,상기 기판에 패치(patch) 형태로 배치되는 접촉 감지 장치.
- 제1항에 있어서,상기 비율은,5% 내지 15% 범위 중 어느 하나인 것을 특징으로 하는 접촉 감지 장치.
- 제1항에 있어서,상기 컨트롤러 칩은,상기 복수의 제1 전극과 상기 복수의 제2 전극 사이에서 생성되는 상호 정전용량 변화에 기초하여 상기 접촉 입력을 판단하는 접촉 감지 장치.
- 제16항에 있어서,상기 컨트롤러 칩은,상기 복수의 제2 전극 중 적어도 일부에 신호를 인가하고, 상기 복수의 제1 전극으로부터 상기 신호를 획득하여 상기 접촉 입력을 판단하는 것을 특징으로 하는 접촉 감지 장치.
- 기판의 일면에 형성된 복수의 제1 전극과 복수의 제2 전극으로부터 신호를 획득하는 단계; 및상기 신호에 기초하여 접촉 입력을 판단하는 단계; 를 포함하고,상기 접촉 입력을 판단하는 단계는,상기 각각의 신호 값의 기설정된 비율의 값을 상기 신호가 획득되는 순서를 기준으로 하여 후순위의 다른 신호 값에서 제거하는 단계; 를 포함하는 접촉 감지 방법.
- 제18항에 있어서,상기 접촉 입력을 판단하는 단계는,상기 각각의 신호 값의 기설정된 비율의 값을 상기 복수의 제2 전극에 의해 상기 신호가 획득되는 순서를 기준으로, 후순위의 상기 다른 신호 값에서 제거하는 단계를 더 포함하는 접촉 감지 방법.
- 제19항에 있어서,상기 복수의 제1 전극은 제1축 상으로 연장되어 배치되며, 상기 복수의 제2 전극은 상기 제1축과 교차하는 제2축 상으로 배치되는 접촉 감지 방법.
- 제20항에 있어서,상기 복수의 제2 전극과 상기 접촉 입력을 판단하는 컨트롤러 칩을 전기적으로 연결하는 배선 패턴이 상기 제1축 상으로 연장되어 배치된 상기 복수의 제1 전극의 각 중심을 경유하는 상기 제2축을 기준으로 대칭적으로 배치된 경우,상기 접촉 입력을 판단하는 단계는,동일한 제1축 상에 배치되는 상기 복수의 제2 전극의 수가 N이고, 상기 신호가 획득되는 순서의 방향이 상기 배선 패턴의 대칭축을 향하는 경우,하기 수학식 2에 대응하는 횟수(M)만큼 상기 제1축 상의 상기 각각의 신호 값의 기설정된 비율의 값을 후순위의 상기 다른 신호 값에서 제거하는 단계를 더 포함하는 접촉 감지 방법.
- 제18항에 있어서,상기 복수의 제2 전극 중 적어도 일부는,동일한 상기 제2축 상에 배치되는 다른 복수의 제2 전극과 전기적으로 연결되는 접촉 감지 방법.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2011800698056A CN103460161A (zh) | 2011-04-01 | 2011-11-22 | 接触感应装置及方法 |
US14/009,055 US20140232682A1 (en) | 2011-04-01 | 2011-11-22 | Apparatus and Method for Detecting Contact |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020110030306A KR101299847B1 (ko) | 2011-04-01 | 2011-04-01 | 접촉 감지 장치 및 방법 |
KR10-2011-0030306 | 2011-04-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012134026A1 true WO2012134026A1 (ko) | 2012-10-04 |
Family
ID=46931675
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2011/008900 WO2012134026A1 (ko) | 2011-04-01 | 2011-11-22 | 접촉 감지 장치 및 방법 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20140232682A1 (ko) |
KR (1) | KR101299847B1 (ko) |
CN (1) | CN103460161A (ko) |
WO (1) | WO2012134026A1 (ko) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9665231B2 (en) * | 2012-05-18 | 2017-05-30 | Egalax_Empia Technology Inc. | Detecting method and device for touch screen |
US9952716B2 (en) | 2012-05-18 | 2018-04-24 | Egalax_Empia Technology Inc. | Detecting method and device for touch screen |
KR101628724B1 (ko) * | 2012-11-13 | 2016-06-09 | 엘지디스플레이 주식회사 | 터치스크린 일체형 표시장치 |
KR102068169B1 (ko) * | 2012-12-31 | 2020-01-20 | 엘지디스플레이 주식회사 | 터치 스크린 장치 |
KR101548796B1 (ko) | 2013-03-07 | 2015-08-31 | 삼성전기주식회사 | 접촉 감지 장치 및 터치스크린 장치 |
KR102093445B1 (ko) | 2013-07-05 | 2020-03-26 | 삼성디스플레이 주식회사 | 용량 방식의 접촉 감지 장치 |
KR101651408B1 (ko) * | 2014-06-23 | 2016-08-26 | 주식회사 리딩유아이 | 정전용량식 터치감지패널 및 이를 갖는 정전용량식 터치감지장치 |
US9658726B2 (en) * | 2014-07-10 | 2017-05-23 | Cypress Semiconductor Corporation | Single layer sensor pattern |
CN104267862B (zh) * | 2014-09-19 | 2017-05-03 | 京东方科技集团股份有限公司 | 一种触摸屏、其触控定位方法及显示装置 |
TWI569194B (zh) * | 2014-09-30 | 2017-02-01 | 瑞鼎科技股份有限公司 | 具有單層式觸控感測器的電容式觸控面板 |
JP6757327B2 (ja) * | 2015-03-10 | 2020-09-16 | サーク・コーポレーション | 単一レイヤのタッチ・センサ上で電極ルーティングを減らす方法 |
KR102002884B1 (ko) | 2015-06-14 | 2019-07-24 | 주식회사 엘지화학 | 터치 센서 및 이의 제조방법 |
KR102002882B1 (ko) * | 2015-06-14 | 2019-07-24 | 주식회사 엘지화학 | 터치 센서 및 이의 제조방법 |
KR102508964B1 (ko) * | 2018-01-31 | 2023-03-14 | 삼성디스플레이 주식회사 | 표시 장치 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4550221A (en) * | 1983-10-07 | 1985-10-29 | Scott Mabusth | Touch sensitive control device |
JP2007018515A (ja) * | 2005-07-08 | 2007-01-25 | Harald Philipp | 二次元位置センサ |
KR20080081411A (ko) * | 2007-03-05 | 2008-09-10 | (주)멜파스 | 단순한 적층 구조를 갖는 접촉위치 감지 패널 |
KR20090000484A (ko) * | 2007-06-28 | 2009-01-07 | 삼성전자주식회사 | 표시장치 및 이의 구동방법 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8300019B2 (en) * | 2008-07-15 | 2012-10-30 | Apple Inc. | Capacitive sensor coupling correction |
US8614690B2 (en) * | 2008-09-26 | 2013-12-24 | Apple Inc. | Touch sensor panel using dummy ground conductors |
US9495042B2 (en) * | 2009-04-14 | 2016-11-15 | Atmel Corporation | Two-dimensional position sensor |
US8581879B2 (en) * | 2010-01-21 | 2013-11-12 | Apple Inc. | Negative pixel compensation |
KR101140920B1 (ko) * | 2010-04-21 | 2012-05-03 | 삼성전기주식회사 | 정전용량식 터치스크린 일체형 표시장치 |
-
2011
- 2011-04-01 KR KR1020110030306A patent/KR101299847B1/ko active IP Right Grant
- 2011-11-22 CN CN2011800698056A patent/CN103460161A/zh active Pending
- 2011-11-22 US US14/009,055 patent/US20140232682A1/en not_active Abandoned
- 2011-11-22 WO PCT/KR2011/008900 patent/WO2012134026A1/ko active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4550221A (en) * | 1983-10-07 | 1985-10-29 | Scott Mabusth | Touch sensitive control device |
JP2007018515A (ja) * | 2005-07-08 | 2007-01-25 | Harald Philipp | 二次元位置センサ |
KR20080081411A (ko) * | 2007-03-05 | 2008-09-10 | (주)멜파스 | 단순한 적층 구조를 갖는 접촉위치 감지 패널 |
KR20090000484A (ko) * | 2007-06-28 | 2009-01-07 | 삼성전자주식회사 | 표시장치 및 이의 구동방법 |
Also Published As
Publication number | Publication date |
---|---|
KR101299847B1 (ko) | 2013-08-28 |
KR20120111673A (ko) | 2012-10-10 |
US20140232682A1 (en) | 2014-08-21 |
CN103460161A (zh) | 2013-12-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2012134026A1 (ko) | 접촉 감지 장치 및 방법 | |
WO2016089149A1 (ko) | 디스플레이 패널, 터치입력장치, 디스플레이 패널로부터 터치위치와 터치압력을 검출하는 검출장치, 및 검출방법 | |
WO2016129827A1 (ko) | 터치 입력 장치 및 전극 시트 | |
WO2016093526A1 (ko) | 터치 스크린 패널 | |
WO2009145485A2 (ko) | 가장자리 위치 인식 특성이 개선된 접촉 감지 장치 | |
WO2010093162A2 (ko) | 터치 스크린 입력장치 | |
WO2010085070A2 (ko) | 입력장치 | |
WO2013051752A1 (ko) | 터치 감지 장치 및 방법 | |
WO2012053792A2 (ko) | 입력 장치 및 이 장치의 접촉 위치 검출 방법 | |
WO2012070834A2 (ko) | 터치 스크린 패널 및 이를 포함한 영상 표시 장치 | |
WO2011126214A2 (en) | Touch sensing panel and device for detecting multi-touch signal | |
WO2017135774A1 (ko) | 터치 입력 장치 | |
WO2014178542A1 (ko) | 터치 스크린 패널의 제조 방법 | |
WO2016093524A1 (ko) | 정전식 터치 스크린 패널의 터치검출 센서 구조 | |
WO2016195308A1 (ko) | 터치 압력을 감지하는 터치 입력 장치의 감도 보정 방법 및 컴퓨터 판독 가능한 기록 매체 | |
WO2012005429A1 (en) | Touch sensing panel and touch sensing device for detecting multi-touch signal | |
WO2015174688A1 (en) | Touch window | |
WO2012176966A1 (en) | Touch sensor panel | |
WO2012093873A2 (ko) | 터치스크린의 터치 위치 검출 방법 및 이러한 방법을 사용하는 터치스크린 | |
WO2013180438A1 (ko) | 개선된 원 레이어 정전식 터치 패널 | |
WO2012008725A2 (ko) | 회로기판을 이용하여 터치센서 칩에 감지 신호를 전달하는 접촉 감지 패널 및 접촉 감지 장치 | |
WO2017135707A9 (ko) | 터치 압력 감도 보정 방법 및 컴퓨터 판독 가능한 기록 매체 | |
WO2018139815A1 (ko) | 복수의 압력을 감지할 수 있는 압력 감지부 및 이를 포함하는 터치 입력 장치 | |
WO2012033247A1 (ko) | 터치 패널 | |
WO2015030360A1 (ko) | 터치 검출 및 시인성 개선을 위한 터치 검출 장치 및 이를 포함하는 전자 기기 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 11862161 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14009055 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
32PN | Ep: public notification in the ep bulletin as address of the adressee cannot be established |
Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 28/01/2014) |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 11862161 Country of ref document: EP Kind code of ref document: A1 |