WO2014051210A1 - Motif de structure conductrice, module de panneau tactile, et dispositif électronique - Google Patents

Motif de structure conductrice, module de panneau tactile, et dispositif électronique Download PDF

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Publication number
WO2014051210A1
WO2014051210A1 PCT/KR2012/011309 KR2012011309W WO2014051210A1 WO 2014051210 A1 WO2014051210 A1 WO 2014051210A1 KR 2012011309 W KR2012011309 W KR 2012011309W WO 2014051210 A1 WO2014051210 A1 WO 2014051210A1
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WIPO (PCT)
Prior art keywords
driving electrode
pixel
electrode cell
driving
touch panel
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PCT/KR2012/011309
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English (en)
Korean (ko)
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김성한
신형철
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주식회사 지니틱스
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Publication of WO2014051210A1 publication Critical patent/WO2014051210A1/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • 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
    • 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
    • G06F3/044—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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
    • 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
    • G06F3/0448—Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality

Definitions

  • the present invention relates to a pattern of a conductor used in a capacitive touch input device, a touch panel module having such a pattern, and an electronic device using the same.
  • the touch input device refers to an input device that detects a touch position of a finger or the like on the touch panel and provides information on the detected touch position as input information.
  • touch input devices There are many types of touch input devices, and typically there are resistive methods and capacitive methods.
  • the capacitive type is largely divided into self-capacitance and mutual storage.
  • the mutual power storage method has an operation pattern and a sensing pattern made of a transparent conductive material, and capacitance may be formed between the two patterns. Moving or touching a finger near these two patterns will change the value of the capacitance formed between the two patterns. Therefore, by measuring whether the capacitance value formed between the two patterns is changed, it is possible to determine whether or not the finger touches the touch panel. To this end, when an electrical signal is applied to the operation pattern, charge is injected into the sensing pattern. Since the amount of charge injected varies depending on the capacitance value formed between the two patterns, the change in capacitance can be determined by measuring the amount of charge injected, and as a result, it is possible to know whether a touch input has been made.
  • the touch panel in which the sensing electrode, the driving electrode, and the driving signal lead line are disposed on the same layer includes a plurality of driving electrode cells in which one driving electrode is spaced apart from each other.
  • a driving signal lead line In order to apply the same driving signal to the plurality of driving electrode cells, a driving signal lead line must be disposed between the driving electrode cells. When the area occupied by the driving signal lead line is large, the touch input performance of the touch panel may be degraded.
  • the present invention provides a pattern of a touch panel that can reduce the area occupied by the driving signal lead lines to improve the touch input performance.
  • the touch panel according to an aspect of the present invention for solving the above problems includes a touch pattern in which a plurality of pixel pairs composed of two touch pixels adjacent in the left and right directions are continuously disposed in the vertical and horizontal directions.
  • the pixel pair includes a left pixel and a right pixel
  • the left pixel includes one first driving electrode cell and a first sensing electrode cell disposed on the right side of the first driving electrode cell.
  • An odd number of driving electrode lead lines extends up and down between the first pixel pair and the second pixel pair disposed adjacent to the first pixel pair in the left-right direction among the plurality of pixel pairs.
  • the lower end of one driving electrode lead line positioned in the middle of the odd number of driving electrode lead lines is branched to the left and right.
  • a touch panel includes a touch pattern in which a plurality of pixel pairs composed of two touch pixels adjacent to each other in a left and right direction are continuously disposed in a vertical and horizontal direction.
  • the pixel pair includes a left pixel and a right pixel
  • the left pixel includes one first driving electrode cell and a first sensing electrode cell disposed to the left of the first driving electrode cell.
  • an odd number of driving electrode lead lines may be disposed to extend upward and downward between the first driving electrode cell and the second driving electrode cell, and a lower end portion of one driving electrode lead line positioned in the center of the odd number of driving electrode lead lines may be formed. It is branched from side to side.
  • an area of the driving signal lead line can be reduced.
  • FIG. 1 illustrates an example of an electronic device including a touch input device.
  • FIG. 2A to 2E illustrate the touch panel of FIG. 1 in detail.
  • 3A to 3C illustrate changes in capacitance according to a touch input position in a touch panel.
  • FIG. 4A illustrates a layout of a touch panel according to the related art.
  • FIG. 4B is a detailed view illustrating only the driving signal leader groups shown in FIG. 4A.
  • FIG. 5A illustrates a layout of a touch panel according to an exemplary embodiment of the present invention
  • FIG. 5B illustrates in detail only the driving signal lead groups shown in FIG. 5A
  • FIG. 5C is a dotted rectangle shown in FIG. 5A.
  • the box area is shown in detail.
  • FIG. 6 illustrates a layout of a touch panel 400 according to another embodiment of the present invention.
  • FIG. 7A, 7B, and 7C illustrate examples of shapes of sensing electrodes that may be used in a touch panel according to an embodiment of the present invention.
  • 8A is another diagram illustrating an arrangement of a driving signal lead line according to an embodiment of the present invention.
  • 8B and 8C are still another diagrams illustrating an arrangement of driving signal lead lines according to another exemplary embodiment of the present invention.
  • 9A and 9B are for explaining a modified embodiment of the present invention.
  • FIG. 1 illustrates an example of an electronic device using a conductor pattern according to an embodiment of the present invention.
  • the electronic device 100 may receive an input signal through the touch panel 1.
  • the touch panel 1 may be formed to include a substrate on which electrode patterns in a matrix form are formed.
  • the electronic device 100 outputs a signal for driving the touch panel 1 and a touch panel 1 configured to transmit a touch input signal, and receives an input signal from the touch panel 1.
  • a main processor 4 configured to execute a program stored in the storage device 5, a storage device 5 storing one or more programs executed according to a touch input signal, and outputting a processing result of the main processor 4. It may include a display device (6).
  • the display device 6 and the touch panel 1 may overlap each other.
  • the touch panel controller 3 includes a touch sensing unit configured to sense a signal input from the touch panel 1, a panel driver generating a touch panel driving signal to transmit an input signal to the touch panel 1, and a panel driver. And a touch panel processor adapted to control.
  • the touch panel processor may be a reprogrammable processor or a type of processor operated by dedicated logic such as a state machine.
  • the electronic device 100 may include a RAM or another type of storage device, and may further include other devices such as a watchdog.
  • FIG. 2A illustrates the touch panel of FIG. 1 in detail.
  • the touch panel 1 includes several transparent electrodes C1 to CM extending in a first direction, for example, a vertical direction, and several transparent electrodes R1 to RN extending in a second direction, for example, a horizontal direction. It can be configured to include.
  • the first direction and the second direction may be directions perpendicular to each other, but are not limited thereto.
  • the vertical electrode may be referred to as a column electrode or a sensing electrode 20
  • the horizontal electrode may be a row electrode or a driving electrode ( 10).
  • the sensing electrodes 20 and the driving electrodes 10 may cross each other. pixel 15).
  • the sensing electrodes 20 and the driving electrodes 10 may be formed on the same layer, in which a region including a portion of the driving electrode 10 and a portion of the sensing electrode 20 disposed next to the portion of the driving electrode 10 is formed.
  • the area including the reference point of the touch input position detection may be referred to as the pixel 15.
  • Each pixel 15 may have a stray capacity Cstray, which is a capacitance existing between electronic circuit components, wirings, wirings, and components and a substrate.
  • the stray capacitance acts as a condenser in high frequency circuits and pulse circuits, and may affect its operation.
  • a driving signal such as a pulse train in which the voltage of the first level Vdrive and the voltage of the second level 0V are periodically repeated is transmitted to one of the driving electrodes 10 (R1 in FIG. 2A). Can be authorized.
  • the driving electrode 10 to which the driving signal is input may be changed.
  • a DC voltage for example, a voltage of 0V may be applied to the other driving electrodes 10 except for the driving electrode 10 to which the driving signal is input.
  • the touch panel 1 may be formed in a multilayer structure.
  • the driving electrode 10 and the sensing electrode 20 may be formed on different layers, or may be formed on the same layer.
  • 2B and 2C illustrate an example in which the driving electrode 10 and the sensing electrode 20 are formed on different layers
  • FIGS. 2D and 2E illustrate an example in which the driving electrode 10 and the sensing electrode 20 are formed on the same layer.
  • An insulating layer 50 may be provided between the driving electrode 10 and the sensing electrode 20 so that the driving electrode 10 and the sensing electrode 20 are not shorted to each other.
  • the protective layer 30 may be formed on the sensing electrode 20 and the driving electrode 10. When a voltage is applied to the driving electrode 10, an electric field 510 is formed from the driving electrode 10 toward the sensing electrode 20.
  • the value of mutual capacitance Csense between the driving electrode 10 and the sensing electrode 20 may be determined. As shown in FIG. 2C or 2E, when a touch input is made by the finger 600, a part of the electric field 510 from the driving electrode 10 is blocked by the finger 600, so that the driving electrode 10 and the sensing electrode ( 20) the mutual capacitance value can vary (Csense-> Csense-DELTA Csense).
  • the driving electrode 10 and the sensing electrode 20 are formed on the same layer as shown in FIGS. 2D and 2E, the driving electrode (at the intersection point of the driving electrode 10 and the sensing electrode 20) is not shorted to each other.
  • An insulator may be provided between 10) and the sensing electrode 20.
  • 3A to 3C illustrate changes in capacitance according to a touch input position in a touch panel.
  • FIG. 3A illustrates a touch panel in which a total of eight sensing electrodes C1 to C8 and a total of 12 driving electrodes R1 to R12 are formed.
  • the sensing electrode and the driving electrode are formed on different layers.
  • the area of each node where the sensing electrode and each driving electrode intersect is indicated by a square.
  • an area that actually blocks the electric field from the driving electrode to the sensing electrode may be modeled as an ellipse or a circle.
  • the description is based on the assumption that the model is circular.
  • FIG. 3B details the nodes [R3, C4], nodes [R3, C5], and nodes [R3, C6] of FIG. 3A.
  • the touch input may be made around the point indicated by the indexes [-9] to [9] shown in FIG. 3B.
  • touch input is made around the points indicated by the index ([-9]), the index ([0]), and the index ([9])
  • the electric field is cut off by the circular area (A [-9]), Circular region A [0], and circular region A [9].
  • the y-axis values in FIG. 3C represent capacitance change values of the nodes [R3 and C5], and the + x and -x axes represent distances spaced to the right and left from the center point of the nodes [[R3, C5], respectively). Indicates.
  • the indices [-9] to [9] of FIG. 3C correspond to the indices [-9] to [9] of FIG. 3B, respectively.
  • the y value is the maximum since the electric field on the node [R3, C5] is blocked the most.
  • the straight line LI shown in FIG. 3C shows the change in the ideal capacitance according to the touch input position
  • the curve LR shows the change in the actual capacitance in accordance with the touch input position.
  • the straight line LI is ideal because the calculation to be performed in the touch input processor can be simplified if the capacitance change due to the change in the touch input position satisfies the linearity.
  • D (xn) shown in FIG. 3C represents the difference value between the straight line LI and the curve LR at the point x n .
  • the degree suitable for interpolation is defined by the term Interpolability , which can be obtained by measuring the amount of change in capacitance between two adjacent cells over distance. Equation 1 quantifies the difference between an ideal interpolation response profile (IRP) and the actual interpolation response profile.
  • IRP ideal interpolation response profile
  • Equation 1 it can be seen that the greater the interpolability, the closer to the ideal IRP.
  • the density of the line (sensing line) of the pattern in the sensing electrode and / or the driving electrode may be designed to be maximum.
  • the density of the sensing line determines the distribution of the fringing cap in one cell node, which is proportional to the length of the driving electrode and the sensing electrode facing each other.
  • FIG. 4A illustrates a layout of a touch panel according to the related art.
  • the touch panel 200 according to FIG. 4A has a structure of 8 columns * 8 rows, and the sensing electrodes C1 to C8 and the driving electrodes R1 to R8 are disposed on the same first layer.
  • Each column 26 extending up and down represents one sensing electrode 20, respectively.
  • the portions shown in the form of a solid rectangular box each represent one driving electrode cell 11.
  • eight driving electrode cells 11 belonging to the same row may be used.
  • One drive electrode is formed.
  • the touch panel 200 has a layout having a left-right symmetrical structure around an imaginary vertical dividing line 19 that divides the touch panel 200 evenly from side to side.
  • a total of 8 * 4 32 pixels 151 are present on the left side 29 of the vertical dividing line 19.
  • a driving electrode cell 11 is disposed on the left side of each pixel 151 and a sensing electrode on the right side.
  • the cell 21 is arranged.
  • there are 8 * 4 32 pixels 152 on the right side 39 of the vertical dividing line 19.
  • a sensing electrode cell 21 is disposed on the left side of each pixel 152 and a driving electrode on the right side.
  • the cell 11 is arranged.
  • the sensing electrode cells 21 belonging to the same sensing electrode are connected up and down.
  • the same driving signal should be input to one driving electrode at a specific time.
  • the same electrical signal should be input to all driving electrode cells constituting one driving electrode.
  • each of the driving electrode cells 11 of the touch panel 200 is spaced apart from each other in up, down, left and right. Therefore, eight driving electrode cells 11 forming each driving electrode, for example, eight driving electrode cells 11 forming the driving electrode R2 must be electrically connected to each other.
  • the eight driving electrode cells belonging to each driving electrode cannot be directly connected to the left and right on the above-described first layer.
  • the driving signal lead groups 210, 220, 230, 240, 250, and 260 may be detected on the first layer.
  • C2, C3, C6, C7, C8) is formed to extend up and down long.
  • the driving signal leader groups 210, 220, 230, 240, 250, and 260 may be disposed between the sensing electrode and the pattern of the driving electrode, thereby affecting the performance of the touch input sensing. Therefore, it is important to appropriately adjust the shape and size of the space occupied by the driving signal leader groups 210, 220, 230, 240, 250, and 260.
  • separate driving signal lead lines for inputting a driving signal to 28 driving electrode cells 11 disposed at the outermost side among the 8 * 8 64 driving electrode cells 11 shown in FIG. It can be easily understood through the layout of FIG. 4A that it does not need to be disposed between the patterns of the driving electrodes. Accordingly, in the present specification, for convenience of description, the separate driving signal lead lines for inputting the driving signal to the 28 outermost driving electrode cells 11 are not illustrated.
  • such separate driving signal leader lines may or may not be included in the aforementioned driving signal leader groups 210, 220, 230, 240, 250, and 260.
  • FIG. 4B is a detailed view illustrating only the driving signal leader groups shown in FIG. 4A.
  • the driving signal leader group 210, the driving signal leader group 220, the driving signal leader group 230, the driving signal leader group 240, the driving signal leader group 250, and the driving signal leader group 260 are respectively.
  • Lead wires 211 to 216, lead wires 221 to 226, lead wires 231 to 236, lead wires 241 to 246, lead wires 251 to 256, and lead wires 261 to 266 may be included.
  • the lead wires 211, 221, 231, 241, 251, and 261 are electrically connected to each other, and the lead wires 212, 222, 232, 242, 252, and 262 are electrically connected to each other, and the lead wires 213, 223, 233, 243, 253, and 263 are electrically connected to each other, and the lead wires 214, 224, 234, 244, 254, and 264 are electrically connected to each other, and the lead wires 215, 225, 235, 245, The 255 and 265 are electrically connected to each other, and the lead wires 216, 226, 236, 246, 256 and 266 are electrically connected to each other.
  • the left and rightmost driving electrode cells of the eight driving electrode cells constituting the specific driving electrode are electrically connected to the lead wires connected to the six driving electrode cells therebetween. Therefore, eight driving electrode cells constituting any driving electrode among the driving electrodes R1 to R6 may always have the same potential.
  • the area occupied by the above-mentioned driving signal leader groups 210, 220, 230, 240, 250, and 260 may serve as a kind of dead zone for touch input sensing.
  • the reason can be explained using, for example, the case where the driving electrode R2 is being driven.
  • the lead wires 211 to 215 are all connected to a specific potential, for example, a reference potential.
  • Some of the electric force lines extending from the driving electrode cell 11 connected to the lead wire 216 converge to the lead wires 211 to 215.
  • the electric force lines that need to converge with the sensing electrode are reduced, so that the touch input of the touch panel 200 is sensed. Performance may be degraded. Therefore, there is a need for a technology that reduces the area occupied by the driving signal leader groups 210, 220, 230, 240, 250, and 260 in the touch panel or minimizes the influence thereof.
  • the interpolation response profile shown in FIG. 3C shows a symmetrical shape
  • this profile is mainly used when the driving electrode cells included in each pixel of the touch panel have a symmetrical pattern about the vertical axis of the sensing electrode. May appear.
  • the driving electrode and the sensing electrode are disposed on one layer as in the touch panel 200 illustrated in FIG. 4A
  • the driving electrode cells included in any pixel have a left-right asymmetric pattern about the vertical center axis of the sensing electrode.
  • the interpolation response profile is asymmetrical, there may be a problem in that the uniformity of touch input sensing is degraded.
  • FIG. 5A illustrates a layout of a touch panel according to an exemplary embodiment of the present invention
  • FIG. 5B illustrates in detail only the driving signal lead groups shown in FIG. 5A
  • FIG. 5C is a dotted rectangle shown in FIG. 5A.
  • the box area is shown in detail.
  • the touch panel 300 according to FIG. 5A has an 8 column * 8 row structure, and the sensing electrodes C1 to C8 and the driving electrodes R1 to R8 are arranged on the same first layer.
  • Each column 26 extending up and down represents one sensing electrode.
  • the sensing electrode may be identified by being divided into a plurality of sensing electrode cells 21, and one sensing electrode may be formed by connecting the plurality of sensing electrode cells 21 up and down.
  • the portion 160 shown in the form of a dotted rectangular box represents a pair of pixels 15.
  • a driving signal lead line for providing a driving signal to a plurality of driving electrode cells between two sensing electrodes (eg, C2 and C3) adjacent to the left and right.
  • Groups 310, 410, 510 may be arranged.
  • the separate driving signal lead lines for inputting the driving signal to the 28 outermost driving electrode cells 11 are not illustrated.
  • such separate driving signal leader lines may or may not be included in the aforementioned driving signal leader groups 310, 410, and 510.
  • FIG. 5B illustrates only the driving signal leader groups shown in FIG. 5A in more detail.
  • the driving signal leader group 310, the driving signal leader group 410, and the driving signal leader group 510 may include the leader lines 311 to 321, the leader lines 411 to 421, and the leader lines 411 to 421, respectively.
  • the lead wires 311, 411, 511 are electrically connected to each other
  • the lead wires 312, 412, 512 are electrically connected to each other
  • the lead wires 313, 413, 513 are electrically connected to each other.
  • Lead wires 314, 414, and 514 are electrically connected to each other
  • lead wires 315, 415, and 515 are electrically connected to each other
  • lead wires 316, 416, and 516 are electrically connected to each other.
  • 317, 417, and 517 are electrically connected to each other, the lead wires 318, 418, and 518 are electrically connected to each other, and the lead wires 319, 419, and 519 are electrically connected to each other.
  • the 420 and 520 are electrically connected to each other, and the lead wires 321, 421 and 521 are electrically connected to each other.
  • Lead wires 316, 416, and 516 are divided in two directions at the lower end thereof and connected to two driving electrode cells 11.
  • the left and rightmost driving electrode cells of the driving electrode cells 11 constituting the specific driving electrode are electrically connected to the lead wires connected to the six driving electrode cells therebetween. Therefore, eight driving electrode cells constituting any driving electrode among the driving electrodes R1 to R6 may always have the same potential.
  • the portion 160 which is indicated by a dotted rectangular box shape, includes a pair of pixels 161 and 162 adjacent in the left and right direction, that is, in the extending direction of the driving electrode.
  • the left pixel 161 includes one first driving electrode cell 51 and a first sensing electrode cell 52 disposed on the right side of the first driving electrode cell 51.
  • the right pixel 162 includes one second driving electrode cell 61 and a second sensing electrode cell 62 disposed on the left side of the second driving electrode cell 61.
  • the portion 160 indicated by the dotted rectangular box form may be simply referred to as a pixel pair 160.
  • any driving electrode extending in the horizontal direction may be formed by successive arrangements of the pixel pairs 160 in the left and right directions.
  • the above-mentioned driving signal leader groups 310, 410, and 510 are formed between the pixel pairs 160.
  • the driving signal lead lines may be arranged along the outside of the touch panel 300.
  • the driving voltages applied to the driving signal lead lines disposed on the outer side of the touch panel 300 may be affected, and thus touch inputs may be performed. Detection errors may occur.
  • the driving electrodes other than the sensing electrodes may be disposed on the left and right sides of the touch panel 300, thereby solving the above-described problem.
  • the driving signal lead line may be connected to the outermost driving electrode cells 11 (the driving electrode cells denoted as B) 11 at the edges in various ways. It can be easily understood that the driving lines for driving the outermost driving electrode cells (cells denoted as B) can be configured not to be included in the driving signal lead group 310, 410, or 510. Accordingly, referring to FIG. 5B, at least 33 (311 to 321, 411 to 421, and 511 to 521) of the inlet lines existing in the touch panel 300 illustrated in FIG. 5A exist. On the other hand, at least 36 incoming lines existing inside the touch panel 200 described with reference to FIGS.
  • the area of the dead zone of the touch panel 300 according to FIG. 5A may have a smaller value than the area of the dead zone of the touch panel 200 according to FIG. 4A.
  • FIG. 6 illustrates a layout of a touch panel 400 according to another embodiment of the present invention.
  • the touch panel 400 illustrated in FIG. 6 is a modified embodiment of the touch panel 300 illustrated in FIG. 5A.
  • the branch 23 is formed at predetermined intervals in a rectangular sensing electrode extending vertically and long as shown in the touch panel 300 illustrated in FIG. 5A. different.
  • the shape of the driving electrode cell 11 is different from that of the edge of the sensing electrode 20.
  • FIG. 7A, 7B, and 7C illustrate examples of shapes of sensing electrodes that may be used in a touch panel according to an embodiment of the present invention.
  • FIGS. 7A and 7B illustrate a sensing electrode used in the touch panel shown in FIGS. 5A and 6, respectively
  • FIG. 7C illustrates a shape of a sensing electrode that may be used in a touch panel according to another exemplary embodiment.
  • the sensing electrode may be provided in various forms according to the embodiment, and it is apparent that the shape of the driving electrode cell 11 may be modified in accordance with the edge shape of the provided sensing electrode.
  • the scope of the present invention is not limited by the shape of the sensing electrode.
  • FIG. 8A is another diagram illustrating an arrangement of a driving signal lead line according to an embodiment of the present invention.
  • the driving signal lead lines of the 28 driving electrode parts 123 (the driving electrode parts denoted by B ′) of the outermost part of the touch panel 300 are not shown. It was shown together using ⁇ 617.
  • the same drive signals as the drive signal lead lines 311 to 316 shown in Fig. 5B are applied to the drive signal lead lines 611 to 616, respectively.
  • the driving signal lead line 610 and the driving signal lead line 617 are configured to apply driving signals for driving electrodes which are located at the top and bottom of the touch panel 300, respectively.
  • the electrode lead wire can be formed in the shape as shown in Figure 5b, it can be seen that this structure also belongs to the scope of the present invention.
  • FIG. 8B and 8C are still another diagrams illustrating an arrangement of driving signal lead lines according to another exemplary embodiment of the present invention.
  • the driving signal lead lines of the 28 driving electrode parts 123 (the driving electrode parts denoted by B ′) disposed on the outermost side of the touch panel 300 are not shown.
  • the driving electrode lead line is disposed in the same manner as in FIG. 5A.
  • FIG. 8C illustrates the driving signal leader groups 310, 410, 510, 710, and 810 of FIG. 8B in more detail.
  • 9A and 9B are for explaining a modified embodiment of the present invention.
  • FIG. 9A illustrates a structure in which the driving electrode cell disposed at the leftmost side, the sensing electrode cell disposed at the leftmost side, the driving electrode cell disposed at the rightmost side, and the sensing electrode cell disposed at the rightmost side are removed from FIG. 8.
  • the pixel pair 160 is defined in FIG. 5A, the pixel pair 160 may be defined in another manner in the structure shown in FIG. 9A.
  • reference numeral 170 is used for a pixel pair in the structure as shown in FIG. 9A.
  • the portion 170 which is indicated by a dotted rectangular box shape, includes a pair of pixels 171 and 172 adjacent to the left and right, that is, adjacent to the extension direction of the driving electrode.
  • the left pixel 171 includes one first driving electrode cell 951 and a first sensing electrode cell 952 disposed on the left side of the first driving electrode cell 951.
  • the right pixel 172 includes one second driving electrode cell 961 and a second sensing electrode cell 962 disposed on the right side of the second driving electrode cell 961.
  • any driving electrode extending in the horizontal direction may be formed by successive arrangements of the pixel pairs 170 in the left and right directions.
  • the above-mentioned driving signal leader groups 310, 410, and 510 are formed between the first driving electrode cell 951 and the second driving electrode cell 961.
  • FIGS. 5A to 5C an embodiment of the present invention will be described with reference to FIGS. 5A to 5C.
  • the touch panel 300 includes a touch pattern in which a plurality of pixel pairs 160 including two touch pixels 161 and 162 adjacent to each other in the left and right directions are disposed in the vertical and horizontal directions. do.
  • the pixel pair 160 includes a left pixel 161 and a right pixel 162, and the left pixel 161 is disposed on the right side of one first driving electrode cell 51 and the first driving electrode cell 51.
  • the first sensing electrode cell 52, and the right pixel 162 includes one second driving electrode cell 61 and a second sensing electrode cell 62 disposed on the left side of the second driving electrode cell 61. ).
  • An odd number of driving electrode lead lines 510 may be disposed between the first pixel pair 160_1 and the second pixel pair 160_2 disposed adjacent to the first pixel pair 160_1 in the left-right direction among the plurality of pixel pairs 160.
  • 511-521 are extended and arranged up and down. Lower ends of one driving electrode lead line 516 positioned in the middle of the odd number of driving electrode lead lines 510 and 511 to 521 are branched to the left and right.
  • the touch panel 300 includes one or more pixel pairs 160 formed of two touch pixels 161 and 162 adjacent in the left and right directions.
  • the pixel pair 160 includes a left pixel 161 and a right pixel 162, and the left pixel 161 is disposed on the right side of one first driving electrode cell 51 and the first driving electrode cell 51.
  • the first sensing electrode cell 52 is disposed, and the right pixel 162 includes one second driving electrode cell 61 and a second sensing electrode cell disposed on the left side of the second driving electrode cell 61. 62).
  • the first pixel pair 160_1 is connected to the first pixel pair 160_1.
  • a second driving signal lead line 516, 517, 518, 519, 520, or 521 connected to the first driving electrode cell 51 is disposed to drive the first driving electrode cell 51 included in 160_2. .
  • the first pixel pair 160_1 may be used between the first pixel pair 160_1 of the one or more pixel pairs 160 and the second pixel pair 160_2 disposed adjacent to the right side of the first pixel pair 160_1, the first pixel pair 160_1 may be used.
  • One driving signal lead line 516 for driving the second driving electrode cell 61 included in the first driving electrode cell 51 included in the second pixel pair 160_2 is disposed.
  • the lower end of the one drive signal lead line 516 branches to the left and right sides. It is.
  • the touch panel 300 is a touch panel including a touch pattern in which a plurality of pixel pairs 170 including two touch pixels 171 and 172 adjacent to each other in a left and right direction are sequentially disposed in a vertical and horizontal direction.
  • Reference numeral 170 may include a left pixel 171 and a right pixel 172, and the left pixel 171 may include a first driving electrode 951 and a first driving electrode 951 disposed on the left side of the first driving electrode cell 951.
  • the first pixel 172 includes a first sensing electrode cell 952 and the second sensing electrode cell 962 disposed on the right side of one second driving electrode cell 961 and the second driving electrode cell 961. It may include. At this time, an odd number of driving electrode lead lines 310, 410, and 510 are vertically extended between the first driving electrode cell 951 and the second driving electrode cell 961, and an odd number of driving electrode lead lines 310 are disposed. The lower end of one of the driving electrode lead lines positioned in the middle of the first and second 410 and 510 may be branched left and right.
  • FIGS. 5a, 6 and 9a show an embodiment according to the invention, the invention further comprising a sensing electrode cell and a driving electrode cell and a driving electrode around the pattern shown in FIGS. 5a, 6 and 9a.
  • the rectangular electrodes arranged in an 8 * 8 matrix form are defined as driving electrodes, and the electrodes extending in the vertical direction and having eight left and right electrodes are sensing electrodes.
  • a rectangular electrode arranged in an 8 * 8 matrix may be defined as a sensing electrode, and eight electrodes extending in the vertical direction and arranged eight left and right may be defined as driving electrodes.
  • the vertical, horizontal, vertical scale of the electrode extending vertically and / or vertically can be adjusted to optimize.
  • the components called 'drive electrode lead wires' in FIGS. 1 to 9 may be referred to as 'sensing electrode lead wires'.
  • This embodiment will be described with reference to FIG. 5C.
  • This is a touch panel including one or more pixel pairs 160 composed of two touch pixels 161 and 162 adjacent in the left and right directions.
  • the pixel pair 160 includes a left pixel 161 and a right pixel 162, and the left pixel 161 has one left side of the first driving electrode cell 52 and the first driving electrode cell 52.
  • a first sensing electrode cell 51 disposed on the second pixel electrode 162, and the right pixel 162 includes one second driving electrode cell 62 and a second sensing electrode cell disposed on the right side of the second driving electrode cell 62. And may include 61.
  • This embodiment can be described from another viewpoint with reference to FIG. 9B.
  • This relates to a touch panel including a touch pattern in which a plurality of pixel pairs 170 including two touch pixels 171 and 172 adjacent in a left and right direction are continuously disposed in a vertical and horizontal direction.
  • the pixel pair 170 includes a left pixel 171 and a right pixel 172, and the left pixel 171 has a right side of one first driving electrode 952 and the first driving electrode cell 962.
  • a first sensing electrode cell 951 disposed on the second pixel, and the right pixel 172 includes one second driving electrode cell 962 and a second sensing electrode cell disposed on the left side of the second driving electrode cell 962. (961).
  • an odd number of sensing electrode lead-out lines are extended upward and downward, and one sensing electrode positioned in the center of the odd number of sensing electrode lead-out lines.
  • the lower end of the leader line may be branched left and right.

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  • 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)
  • Quality & Reliability (AREA)
  • Position Input By Displaying (AREA)

Abstract

L'invention concerne un panneau tactile, comprenant au moins une paire de pixels, qui comprend deux pixels tactiles qui sont adjacents l'un à l'autre sur la gauche et la droite. La paire de pixels comprend un pixel gauche et un pixel droit, le pixel gauche comprenant une première cellule d'électrode de commande et une première cellule d'électrode de détection, qui est agencée sur le côté droit de la première cellule d'électrode de commande, et le pixel droit comprenant une seconde cellule d'électrode de commande et une seconde cellule d'électrode de détection, qui est agencée sur le côté gauche de la seconde cellule d'électrode de commande.
PCT/KR2012/011309 2012-09-26 2012-12-21 Motif de structure conductrice, module de panneau tactile, et dispositif électronique WO2014051210A1 (fr)

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KR10-2012-0107298 2012-09-26
KR1020120107298A KR101463052B1 (ko) 2012-09-26 2012-09-26 전도체 패턴, 터치패널 모듈, 및 전자장치

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KR102294702B1 (ko) * 2014-06-03 2021-08-26 동우 화인켐 주식회사 터치 패널
KR101935432B1 (ko) 2015-03-30 2019-01-04 동우 화인켐 주식회사 터치 센서 및 이의 검사 방법
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KR20110007220A (ko) * 2008-04-25 2011-01-21 애플 인크. 용량 감지용 접지 가드
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CN108254983B (zh) * 2018-01-12 2022-04-22 京东方科技集团股份有限公司 显示基板及其制备方法、触控显示装置

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