JP2016099654A - Touch sensor electrode, touch panel, and display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent false detection.SOLUTION: A touch sensor electrode includes a drive electrode and a sensing electrode orthogonal to each other. The drive electrode includes a drive main line 31ML and a drive sub line 31SL. The sensing electrode includes a sensing main line 33ML and a sensing sub line 33SL. The drive main line 31ML, the drive sub line 31SL, the sensing main line 33ML, and the sensing sub line 33SL constitute a lattice pattern 44 formed by repeating a square unit lattice 44a. The drive main line 31ML and the drive sub line 31SL have a first main-line terminal line segment 38a and a second main-line terminal line segment 42a, across a first intersection 37. The sensing main line 33ML and the sensing sub line 33SL have the first main-line terminal line segment 38a and the second main-line terminal line segment 42a, across a second intersection 41. A length of each of the terminal line segments 38a, 38b, 42a, 42b is equal to or less than 1/2 pitch of a side of the unit lattice 44a.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a touch sensor electrode, a touch panel, and a display device, each of which includes a plurality of electrode lines.

  Touch panels are widely used as input devices for electronic devices. The touch panel includes a transparent dielectric layer having a first surface and a second surface, and a plurality of first electrodes having a band shape extending along the X direction are positioned on the first surface of the transparent dielectric layer. On the second surface of the transparent dielectric layer, a plurality of second electrodes having a band shape extending along the Y direction orthogonal to the X direction are located. In the touch panel, a change in electrostatic capacitance between each of the first electrode and the plurality of second electrodes is detected for each first electrode, and the position of the finger on the operation surface of the touch panel is detected. As a material for forming the first electrode and the second electrode, a metal such as silver or copper is used in order to lower the resistance value of each electrode (for example, see Patent Document 1).

JP2013-156725A

  Incidentally, each of the plurality of electrodes constituting the touch panel is required to have light transmissivity for outputting an image on the operation surface of the touch panel in addition to the conductivity for detecting the change in capacitance. Each of the plurality of electrodes is configured as a set of a plurality of electrode lines arranged at intervals from each other, and has the above-described light transmittance in the gap between the electrode lines adjacent to each other.

  Generally, a touch operation is performed on a touch panel using a finger or a stylus pen. When a stylus pen is used, it is known that the change in capacitance is smaller than that when touched with a finger.

  If the electrode wire constituting the electrode is cracked due to defective etching or the like, the crack portion may be disconnected while the touch panel is repeatedly used. Since the opposite ends are close to each other at the disconnection location, the ends are repeatedly electrically connected or disconnected depending on the use situation. When the ends are electrically connected or disconnected, the capacitance changes even if the user does not actually perform a touch operation with the finger or the stylus pen. When a change in capacitance occurs at the disconnection location, the detection circuit of the touch panel detects this change in capacitance and determines that a touch operation has been performed at that position. When the threshold value of the capacitance change amount is set low so that the touch operation with the stylus pen can be detected, the capacitance change exceeds the threshold value even though the touch operation is not actually performed by the user. And false detection may occur.

  An object of the present invention is to provide a touch sensor electrode, a touch panel, and a display device that can suppress erroneous detection.

  The touch sensor electrode that solves the above-described problems has a strip shape extending along the first electrode direction that is one direction, and the second electrode direction that intersects the first electrode direction. A plurality of first electrodes arranged along a first gap along a band shape extending along the second electrode direction, and arranged along a second gap along the first electrode direction, A plurality of second electrodes that sterically intersect each of the plurality of first electrodes. Each of the plurality of first electrodes has a plurality of first main lines that are linear segments extending along a first line direction that is one direction, and a direction that intersects the first line direction. And a plurality of first sub-lines that are line segments having a linear shape extending along two line directions. Each of the plurality of second electrodes has a plurality of second main lines that are linear segments extending along the second line direction, and a linear shape extending along the first line direction. And a plurality of second sub-lines that are line segments. In a plan view facing a plane including the plurality of second electrodes, the plurality of first main lines, the plurality of first sub lines, the plurality of second main lines, and the second sub lines have a rectangular shape. A lattice pattern that is a repetition of the unit cell is formed. Each of the first electrodes has a plurality of first intersections formed by intersections of the first main line and the first subline, and each of the second electrodes includes the second main line and the second main line. A plurality of second intersections formed by intersections with the sub-lines; At least one of the plurality of first main lines and the plurality of first sub lines includes a first end line segment extending first from the first intersection, and the plurality of second main lines and the plurality of second sub lines. At least one includes a second end line segment extending from the second intersection. And in the region of 70% or more of the entire detection region, which is a region where the first electrode and the second electrode cross three-dimensionally, the lengths of the first end line segment and the second end line segment are as follows: When one side of the unit cell is 1 pitch, the length is 2 pitches or less.

  According to the above configuration, the lengths of the first end line segment and the second end line segment are not more than 2 pitches when one side of the unit cell is 1 pitch. Therefore, even if the first intersection and the second intersection are disconnected and the ends are frequently connected and disconnected, the change in capacitance at that time can be reduced. Therefore, erroneous detection can be suppressed.

  In the touch panel, at least one of the first terminal line of the first sub-line intersecting the first main line facing the first gap of the first electrode, and the end of the touch panel It is preferable that at least one of at least one of the second end line segments of the second sub-line intersecting the second main line facing the second gap of the second electrode has a length of 2 pitches or less. .

  In the touch panel, a portion of the plurality of first electrodes and the plurality of second electrodes that overlap each other is a capacitance detection unit. Then, at least one of the first end line at both ends of the first main line straddling the two capacity detection units adjacent to each other, and the second main line straddling the two capacity detection units adjacent to each other. It is preferable that at least one of at least one of the second end line segments at both ends has a length of 2 pitches or less.

  In the touch panel, at least one of the first end line segments at both ends of the at least one first sub line, and the second end line segment at both ends of the at least one second sub line. It is preferable that at least one of at least one has a length of 2 pitches or less.

In the touch panel, it is preferable that a region of 70% or more of the entire detection region is configured by a region excluding an outer peripheral portion of the detection region.
In the configuration as described above, a region other than the outer peripheral portion is a region where the user performs a touch operation. In this region, it is necessary to increase detection sensitivity, and accordingly, the possibility of erroneous detection is increased. Therefore, in the region excluding the outer peripheral portion, the length of the first terminal line segment and the second terminal line segment is set to a length of 2 pitches or less, and even when the line breaks, the change in capacitance is small. Like that.

In the touch panel, it is preferable that the plurality of first end line segments and the plurality of second end line segments have a length of 1 pitch or less.
Moreover, it is preferable that the length of the plurality of first end line segments and the plurality of second end line segments is a length of ½ pitch or less.
In the touch panel, the unit cell is preferably a square.

  The touch panel that solves the above problems includes a plurality of first electrodes, a plurality of second electrodes, and a transparent dielectric layer sandwiched between the plurality of first electrodes and the plurality of second electrodes. A touch sensor electrode, a cover layer covering the touch sensor electrode, and a peripheral circuit for measuring a capacitance between the first electrode and the second electrode. The touch sensor electrode includes the touch sensor electrode as described above.

  A display device that solves the above problems includes a display panel that displays information, a touch panel that transmits the information displayed on the display panel, and a drive circuit that drives the touch panel. And the said touch panel is comprised with the above touch panels.

  According to the above configuration, erroneous detection can be suppressed even when the electrode wire is disconnected.

It is a top view which shows the planar structure of the display apparatus in 1st Embodiment which actualized this invention, Comprising: It is a top view shown by notching in order that a part of mutually different component overlaps. It is sectional drawing which shows the cross-section of the display apparatus in 1st Embodiment. It is a block diagram for demonstrating the electrical structure of the touchscreen in 1st Embodiment. It is a fragmentary top view which shows the planar structure of the part of drive electrode in 1st Embodiment. (A) is a top view which shows the state in which the crack was formed in the terminal line segment of the intersection of a drive main line and a drive subline, (b) is a top view which shows the state disconnected at the part of a crack is there. It is a fragmentary top view which shows the planar structure of the part of sensing electrode in 1st Embodiment. It is a top view which shows the planar structure of the drive electrode and sensing electrode in 1st Embodiment, Comprising: The relationship between the position of a drive electrode and the position of a sensing electrode is shown. It is a top view which shows the display surface of a display panel. It is a fragmentary top view which shows the planar structure of a part of drive electrode in 2nd Embodiment. It is a fragmentary top view which shows the planar structure of a part of sensing electrode in 2nd Embodiment. It is a top view which shows the planar structure of the drive electrode and sensing electrode in 2nd Embodiment, Comprising: The relationship between the position of a drive electrode and the position of a sensing electrode is shown. It is a fragmentary top view which shows the planar structure of the part of drive electrode in 3rd Embodiment. It is a top view which shows the planar structure of the drive electrode and sensing electrode in 3rd Embodiment, Comprising: It is a top view which shows the relationship between the position of a drive electrode, and the position of a sensing electrode. It is a fragmentary top view which shows the planar structure of a part of drive electrode in 4th Embodiment. It is a fragmentary top view which shows the planar structure of the part of sensing electrode in 4th Embodiment. It is a top view which shows the planar structure of the drive electrode and sensing electrode in 4th Embodiment, Comprising: It is a top view which shows the relationship between the position of a drive electrode, and the position of a sensing electrode. It is sectional drawing which shows the cross-section of the display apparatus in a 1st modification. It is sectional drawing which shows the cross-section of the display apparatus in a 2nd modification.

[First Embodiment]
A touch sensor electrode, a touch panel, and a display device according to the first embodiment will be described with reference to FIGS. Hereinafter, the configuration of the display device, the electrical configuration of the touch panel, the configuration of the drive electrode, and the configuration of the sensing electrode will be described.

[Plane structure of display device]
The configuration of the display device will be described with reference to FIG. Note that FIG. 1 exaggerates the black matrix, the drive electrode, and the sensing electrode for convenience of explaining the configuration of the black matrix, the drive electrode, and the sensing electrode included in the display device. Moreover, the drive electrode wire which comprises a drive electrode, and the sensing electrode wire which comprises a sensing electrode are shown typically.

  As shown in FIG. 1, the display device includes, for example, a display panel 10 that is a liquid crystal panel and a touch panel 20. The display panel 10 and the touch panel 20 are bonded together by one transparent adhesive layer and are a laminated body. The display device further includes a drive circuit for driving the touch panel 20.

  A rectangular display area 10S is partitioned on the surface of the display panel 10, and information such as an image based on image data from the outside is displayed on the display area 10S. Note that the transparent adhesive layer may be omitted as long as the relative position between the display panel 10 and the touch panel 20 is fixed by another configuration such as a housing. The touch panel 20 is bonded to the display area 10S. A wider area including the display area 10 </ b> S is a detection area 10 </ b> D for detecting that the touch panel 20 is touched with a finger or a stylus pen. The detection region 10D is a region where the drive electrode line and the sensing electrode line intersect three-dimensionally.

  The display panel 10 includes a color filter layer 15. The black matrix 15a of the color filter layer 15 has a plurality of rectangular shapes arranged along a first electrode direction D1 that is one direction and a second electrode direction D2 that is a direction orthogonal to the first electrode direction D1. It has a lattice pattern composed of unit lattices. One pixel 15P is composed of three unit cells continuous along the second electrode direction D2, and the plurality of pixels 15P are arranged along the first electrode direction D1 and the second electrode direction D2.

  Each of the plurality of pixels 15P includes a red coloring layer 15R for displaying red, a green coloring layer 15G for displaying green, and a blue coloring layer 15B for displaying blue. The color filter layer 15 includes, for example, a plurality of red colored layers 15R, a plurality of green colored layers 15G, and a plurality of blue colored layers 15B that are repeatedly arranged in this order along the second electrode direction D2. Yes.

  One red colored layer 15R, one green colored layer 15G, and one blue colored layer 15B constitute one pixel 15P, and the plurality of pixels 15P includes the red colored layer 15R, green in the second electrode direction D2. The colored layers 15G and the blue colored layer 15B are arranged along the second electrode direction D2 while maintaining the order of arrangement.

  The width along the second electrode direction D2 in the pixel 15P is the first pixel width WP1, the width along the first electrode direction D1 in the pixel 15P is the second pixel width WP2, and each of the colored layers 15R, 15G, and 15B. The width along the first electrode direction D1 in FIG. 3 is the third pixel width WP3. Each of the first pixel width WP1, the second pixel width WP2, and the third pixel width WP3 is set to a value according to the resolution required for the display device.

  When the display panel 10 is an EL panel that outputs colored light, the EL panel includes a red pixel that outputs red light, a green pixel that outputs green light, and a blue pixel that outputs blue light. Have. Therefore, the color filter layer 15 described above can be omitted. At this time, the boundary portion between adjacent pixels in the EL panel functions as a black matrix.

  The touch panel 20 is a capacitive touch panel, and is a laminated body in which a touch sensor electrode 21 and a cover layer 22 are bonded together by a transparent adhesive layer 23, and transmits light that transmits information displayed on the display panel 10. It has sex. The cover layer 22 is formed of a glass substrate, a resin film, or the like. The cover layer 22 has an operation surface 20 </ b> S of the touch panel 20 on the surface opposite to the transparent adhesive layer 23. For the transparent adhesive layer 23, for example, an adhesive such as a polyether adhesive or an acrylic adhesive that transmits an image displayed in the display area 10S is used.

  The transparent substrate 31 constituting the touch sensor electrode 21 is superposed on the entire display area 10S formed on the display panel 10, and has a light transmission property that transmits information such as an image displayed on the display area 10S. . The transparent substrate 31 is composed of a base material such as a transparent glass substrate or a transparent resin film, for example, and may be a single layer structure composed of one base material, or two or more base materials are stacked. A multilayer structure may also be used.

  The surface of the transparent substrate 31 opposite to the display panel 10 is set as a drive electrode surface 31S. In the drive electrode surface 31S of the transparent substrate 31, each of the plurality of drive electrodes 31DP has a band shape extending along the second electrode direction D2, which is one direction, and is orthogonal to the second electrode direction D2. The first gaps 39 are arranged along the one electrode direction D1. The drive electrode 31DP is an example of a first electrode.

  Each drive electrode 31DP is a set of a plurality of drive electrode lines, and the plurality of drive electrode lines includes a drive main line that is an example of a first main line and a drive sub line that is an example of a first sub line. As a material for forming each drive electrode 31DP, a metal film such as copper or aluminum is used. Alternatively, the formation material of each drive electrode 31DP includes a metal oxide film such as zinc oxide, and a composite containing metal oxide such as indium such as indium tin oxide and indium gallium zinc oxide, tin, gallium, and zinc. An oxide film is used. In addition, as a material for forming each drive electrode 31DP, a conductive film such as a silver nanowire, a conductive polymer film, and a graphene film is also used. Each of the plurality of drive electrodes 31DP is individually connected to the selection circuit via the drive pad 31P, and is selected by the selection circuit by receiving a drive signal output from the selection circuit.

  A plurality of drive electrodes 31DP and a portion of the drive electrode surface 31S where the drive electrode 31DP is not located are bonded to the transparent dielectric substrate 33 by one transparent adhesive layer 32. The transparent adhesive layer 32 has a light-transmitting property that transmits information such as an image displayed in the display area 10S, and bonds the drive electrode surface 31S and the plurality of drive electrodes 31DP to the transparent dielectric substrate 33. For the transparent adhesive layer 32, for example, a polyether adhesive, an acrylic adhesive, or the like is used. The transparent dielectric substrate 33 is an example of a transparent dielectric layer, and a plurality of drive electrodes 31DP are arranged on the back surface of the transparent dielectric substrate 33 facing the transparent substrate 31.

  The transparent dielectric substrate 33 is composed of a base material such as a transparent resin film such as polyethylene terephthalate or a transparent glass substrate. The transparent dielectric substrate 33 may have a single-layer structure composed of one base material, or a multilayer structure in which two or more base materials are stacked. The transparent dielectric substrate 33 has a light transmission property that transmits information such as an image displayed in the display region 10S, and a relative dielectric constant suitable for detecting a capacitance between the electrodes.

  A surface of the transparent dielectric substrate 33 opposite to the transparent adhesive layer 32 is set as a sensing electrode surface 33S. On the sensing electrode surface 33S of the transparent dielectric substrate 33, a plurality of sensing electrodes 33SP are provided. Each of the plurality of sensing electrodes 33SP has a band shape extending along the first electrode direction D1, and is arranged with a second gap 43 along the second electrode direction D2 orthogonal to the first electrode direction D1. It is out. The sensing electrode 33SP is an example of a second electrode.

  Each sensing electrode 33SP is a set of a plurality of sensing electrode lines, and each of the plurality of sensing electrode lines includes a sensing main line that is an example of a second main line and a sensing subline that is an example of a second subline. A metal film such as copper or aluminum is used as a material for forming each sensing electrode 33SP. Alternatively, the formation material of each sensing electrode 33SP includes a metal oxide film such as zinc oxide, and a composite containing metal oxide such as indium such as indium tin oxide and indium gallium zinc oxide, tin, gallium, and zinc. An oxide film is used. In addition, as a forming material of each sensing electrode 33SP, a conductive film such as a silver nanowire, a conductive polymer film, and a graphene film is also used. Each of the plurality of sensing electrodes 33SP is individually connected to the detection circuit via the sensing pad 33P, and the current value is measured by the detection circuit.

  The portions where the sensing electrodes 33SP are not located on the plurality of sensing electrodes 33SP and the sensing electrode surface 33S are bonded to the cover layer 22 by the transparent adhesive layer 23 described above.

  In plan view opposite to the plane including the plurality of sensing electrodes 33SP, a portion overlapping with each other between the drive electrode 31DP and the sensing electrode 33SP is a capacitance detection unit ND having a quadrangular shape indicated by a two-dot chain line in FIG. . One capacitance detection unit ND is a portion where one drive electrode 31DP and one sensing electrode 33SP intersect three-dimensionally, and detects a position touched by a user's finger or stylus pen on the touch panel 20 Is the smallest possible unit.

[Cross-sectional structure of display device]
As shown in FIG. 2, the touch panel 20 includes a transparent substrate 31, a drive electrode 31DP, a transparent adhesive layer 32, a transparent dielectric substrate 33, a sensing electrode 33SP, a transparent adhesive layer 23, in order from components close to the display panel 10. A cover layer 22 is located. Among these, the transparent dielectric substrate 33 is sandwiched between a plurality of drive electrodes 31DP and a plurality of sensing electrodes 33SP.

  The transparent adhesive layer 32 covers the periphery of each drive electrode line constituting the drive electrode 31DP and fills the space between the drive electrode lines adjacent to each other, so that the gap between the drive electrode 31DP and the transparent dielectric substrate 33 is reached. Is located. The transparent adhesive layer 23 covers the periphery of each sensing electrode line constituting the sensing electrode 33SP and fills between the sensing electrode lines adjacent to each other, and is positioned between the sensing electrode 33SP and the cover layer 22. doing. In these components, at least one of the transparent adhesive layer 23 and the transparent substrate 31 may be omitted.

  The display panel 10 includes, in order from components far from the touch panel 20, a lower polarizing plate 11, a thin film transistor (hereinafter, TFT) substrate 12, a TFT layer 13, a liquid crystal layer 14, a color filter layer 15, a color filter substrate 16, The upper polarizing plate 17 is located. Among these, in the TFT layer 13, pixel electrodes constituting subpixels are located in a matrix. The black matrix 15a in the color filter layer 15 defines a plurality of regions having a rectangular shape facing each of the sub-pixels. In each region defined by the black matrix 15a, the above-described colored layer that changes white light into light of any one of red, green, and blue is located.

  In the configuration in which the transparent adhesive layer 23 is omitted, the surface facing the transparent dielectric substrate 33 in the surface of the cover layer 22 is set as the sensing electrode surface 33S. On the sensing electrode surface 33S, a plurality of sensing electrodes 33SP are formed by patterning one thin film formed on the sensing electrode surface 33S.

  In manufacturing the touch panel 20, a method in which the touch sensor electrode 21 and the cover layer 22 are bonded together by the transparent adhesive layer 23 may be employed. Moreover, the following manufacturing methods may be employ | adopted for the touch panel 20 as another example different from such a manufacturing method. That is, a thin film layer made of a conductive metal such as copper is formed directly or through a base layer on the cover layer 22 such as a resin film, and the sensing electrode 33SP has a pattern shape on the thin film layer. A resist layer is formed. Next, the thin film layer is processed into a plurality of sensing electrodes 33SP by a wet etching method using ferric chloride or the like, and a first film is obtained. Similarly to the sensing electrode 33SP, a thin film layer formed on another resin film is processed into a plurality of drive electrodes 31DP, and a second film is obtained. And a 1st film and a 2nd film are affixed with a transparent adhesive layer with respect to the transparent dielectric substrate 33 so that the transparent dielectric substrate 33 may be pinched | interposed.

[Electrical configuration of touch panel]
The electrical configuration of the touch panel 20 will be described with reference to FIG. Hereinafter, as an example of the capacitive touch panel 20, an electrical configuration of the mutual capacitive touch panel 20 will be described.

  As illustrated in FIG. 3, the touch panel 20 includes a selection circuit 34, a detection circuit 35, and a controller 36. The selection circuit 34 is connected to the plurality of drive electrodes 31DP, the detection circuit 35 is connected to the plurality of sensing electrodes 33SP, and the controller 36 is connected to the selection circuit 34 and the detection circuit 35.

  The controller 36 generates and outputs a start timing signal for causing the selection circuit 34 to start generating a drive signal for each drive electrode 31DP. The controller 36 generates and outputs a scan timing signal for causing the selection circuit 34 to sequentially scan the target to which the drive signal is supplied from the first drive electrode 31DP toward the nth drive electrode 31DP.

  The controller 36 generates and outputs a start timing signal for causing the detection circuit 35 to start detecting the current flowing through each sensing electrode 33SP. The controller 36 generates and outputs a scanning timing signal for causing the detection circuit 35 to sequentially scan the detection target from the first sensing electrode 33SP toward the nth sensing electrode 33SP.

  The selection circuit 34 starts generating the drive signal based on the start timing signal output from the controller 36. Based on the scanning timing signal output from the controller 36, the output destination of the drive signal is scanned from the first drive electrode 31DP1 to the nth drive electrode 31DPn.

  The detection circuit 35 includes a signal acquisition unit 35a and a signal processing unit 35b. Based on the start timing signal output from the controller 36, the signal acquisition unit 35a starts acquiring a current signal that is an analog signal generated in each sensing electrode 33SP. Based on the scanning timing signal output from the controller 36, the signal acquisition unit 35a scans the acquisition source of the current signal from the first sensing electrode 33SP1 to the nth sensing electrode 33SPn.

  The signal processing unit 35 b processes each current signal acquired by the signal acquisition unit 35 a to generate a voltage signal that is a digital value, and outputs the generated voltage signal to the controller 36. The selection circuit 34 and the detection circuit 35 measure a change in capacitance between the drive electrode 31DP and the sensing electrode 33SP by generating a voltage signal from a current signal that changes according to the change in capacitance. The selection circuit 34 and the detection circuit 35 are examples of peripheral circuits.

  The controller 36 detects the position where the user's finger, stylus pen, or the like is touching on the touch panel 20 based on the voltage signal output from the signal processing unit 35b. The touch panel 20 is not limited to the above-described mutual capacitive touch panel 20, and may be a self capacitive touch panel.

[Configuration of Drive Electrode 31DP]
The configuration of the drive electrode will be described with reference to FIG. In FIG. 4, for convenience of explaining the arrangement of the plurality of drive electrode lines constituting the drive electrode 31DP, the portion constituting the four capacitance detection units ND in the two drive electrodes 31DP is shown enlarged, and the drive The line width of the electrode line is exaggerated.

  As shown in FIG. 4, each of the plurality of drive electrodes 31DP includes a plurality of drive main lines 31ML and a plurality of drive sub-lines 31SL. A plurality of drive sub-lines 31SL intersect one drive main line 31ML, and a plurality of drive main lines 31ML intersect one drive sub-line 31SL. The drive main line 31ML and the drive subline 31SL intersect to form at least one shape such as an L shape, an inverted L shape, or a cross.

  Each of the plurality of drive main lines 31ML is a line segment having a linear shape extending along the first line direction DL1 between the first electrode direction D1 and the second electrode direction D2. A part of the plurality of drive main lines 31ML is a line segment straddling two capacitance detection units ND adjacent to each other in the second electrode direction D2. A part of the drive main line 31ML is a line segment that is interrupted between the capacitance detection units ND adjacent to each other in the first electrode direction D1.

  The drive main line 31ML is spaced from the minimum main line interval WM in the second line direction DL2 between the first electrode direction D1 and the second electrode direction D2 by a distance 3WM that is three times the main line interval DL. It is lined up along. That is, the drive main line 31ML is provided in parallel with each other with a main line interval WM, the drive main line 31ML is provided in parallel with each other with a main line interval 2WM that is twice the main line interval WM, and the main line interval WM. Some are provided in parallel with each other with a three-fold main line interval 3WM.

  The plurality of drive sub-lines 31SL are line segments having a linear shape extending along the second line direction DL2. Further, the angle θ1 formed between the second line direction DL2 and the second electrode direction D2 is not less than 0 ° and less than 90 °, and the angle θ2 formed between the first line direction DL1 and the first electrode direction D1 is 0. More than 90 degrees and less than 90 degrees. The first line direction DL1 and the second line direction DL2 are directions intersecting each other. In FIG. 4, the angle θ1 and the angle θ2 are 66.04 °, and the first line direction DL1 The angle formed with the second line direction DL2 is 90 °. A part of the plurality of drive sub-lines 31SL is a line segment that is interrupted between the capacitance detection units ND adjacent to each other in the first electrode direction D1. A part of the plurality of drive sub-lines 31SL are arranged along the first line direction DL1 with a space 5WS that is five times the minimum sub-line interval WS in the first line direction DL1, for example. That is, the drive sub-line 31SL is provided in parallel to each other with an interval of WS, 2WS, 3WS, 4WS, and 5WS.

  Each of the plurality of drive sub-lines 31SL connects the plurality of drive main lines 31ML in parallel. Each of the plurality of drive sub-lines 31SL connects the plurality of drive main lines 31ML in parallel, and the number of drive main lines 31ML is larger than the number of drive sub-lines 31SL that connect the plurality of drive main lines 31ML in parallel. A plurality of drive sub-lines 31SL that connect a plurality of drive main lines 31ML in parallel are included for each capacity detection unit ND. Therefore, for example, as shown by white circles in FIG. 4, even if a disconnection occurs in a part of the drive main line 31ML, the drive main line 31ML adjacent to the drive main line 31ML disconnected from the drive sub line 31SL is used to A transmission path that bypasses is formed. Then, in the transmission line of the drive electrode 31DP, in the portion excluding the detoured portion, almost the same resistance value as usual is obtained. As a result, the resistance value of the drive electrode 31DP is increased due to an increase in the resistance value of a part of the drive electrode line, as compared with the configuration in which the drive electrode line is composed of only a line segment having a linear shape extending along the second electrode direction D2. The increase is suppressed.

  Further, a part of the plurality of drive main lines 31ML has a first main line end line segment 38a extending first from the first intersection 37 where the drive main line 31ML and the drive sub line 31SL intersect. Further, a part of the plurality of drive sub-lines 31SL has a first sub-line end line segment 38b extending from the first intersection 37 first. A part of the first main line end line segment 38a and a part of the first sub line end line segment 38b have one pitch P on one side of the unit cell 44a formed when the drive electrode 31DP and the sensing electrode 33SP are overlapped. , The length is 2 pitches or less (see FIG. 7). The lengths of the first main line end line segment 38a and the first sub line end line segment 38b are preferably 1 pitch or less, more preferably 1/2 pitch or less. The lengths of the first main line end line segment 38a and the first sub line end line segment 38b in the present embodiment are ½ pitch.

  The drive main line 31ML and the drive sub line 31SL include line segments that do not straddle between the adjacent capacitance detection units ND in the first electrode direction D1, and form a first gap 39 between the capacitance detection units ND. Yes. Therefore, a part of the drive main line 31ML has the first main line end line segment 38a at a position along the first gap 39, and a part of the drive sub line 31SL is at a position along the first gap 39. And a first sub-line end line segment 38b. In the example of FIG. 4, the first main line end line segment 38a and the first sub line end line segment 38b are also formed in one capacity detection unit ND.

  For example, as shown by a broken line circle A in FIG. 4, in the drive electrode 31DP, in one capacitance detection unit ND, an end of the drive intersects with the drive main line 31ML facing the first gap 39 located between the drive electrodes 31DP. The length of the first sub-line end line segment 38b of the sub-line 31SL is ½ pitch when one side of the unit cell is 1 pitch P.

  4, in the drive electrode 31DP, in a part of the plurality of drive main lines 31ML, the length of the first main line end line segment 38a at both ends of the drive main line 31ML is 1 / The length is 2 pitches. Note that the length of the first main line end line segment 38a at both ends of the drive main line 31ML straddling the capacitance detection unit ND adjacent in the second electrode direction D2 may be set to a length of ½ pitch or less.

  Further, as indicated by a broken line circle C in FIG. 4, in the drive electrode 31DP, a part of the plurality of drive sub-lines 31SL is connected to the first sub-line at both ends of the drive sub-line 31SL in one capacitance detection unit ND. The length of each first sub-line end line segment 38b having the end line segment 38b along the second line direction DL2 is ½ pitch. Further, the first sub-line end line segment 38b at both ends of the drive sub-line 31SL straddling between the two capacitance detection units ND adjacent to each other in the second electrode direction D2 has a length of ½ pitch or less. .

  As shown in FIG. 5A, a crack 103 may be formed at the first intersection 37 of the drive main line 31ML and the drive sub line 31SL due to an etching failure or the like. The crack 103 may be disconnected while the touch panel 20 is repeatedly used. Since the opposite end portions are close to each other at the disconnection location, the end portions are connected or disconnected depending on the state of use. For this reason, even if a user does not touch a finger or a stylus pen, a change in capacitance occurs. In addition, the dotted line part extended from the 1st main line terminal line segment 38a has shown the conventional terminal line segment. The conventional end line segment is longer than the first main line end line segment 38a.

  As shown in FIG. 5 (b), the disconnected first main line end line segment 38a1 and first subline end line segment 38b1 are 1/2 pitch long when one side of the unit cell 44a is 1 pitch P. It is extremely short (see FIG. 7). The shorter the first main line end line segment 38a1 and the first sub-line end line segment 38b1 that are disconnected, the smaller the change in capacitance at the time of disconnection. Therefore, even if the opposite ends of the disconnection portion are connected or disconnected, the change in capacitance is reduced, and the controller 36 is prevented from erroneously detecting this change in capacitance. be able to.

  In general, the change in capacitance when the stylus pen touches the operation surface 20S is smaller than the change in capacitance when a finger touches the operation surface 20S. The change in capacitance when the stylus pen touches the operation surface 20S is as follows. When one side of the unit cell is 1 pitch, the first main line end line segment 38a and the first sub line end having a length of about 3 pitches. This corresponds to when the line segment 38b is disconnected. In the present embodiment, the lengths of the first main line end line segment 38a and the first sub line end line segment 38b are ½ pitch. Therefore, even if the crack 103 is disconnected, the capacitance change is small, and the controller 36 can be prevented from erroneously detecting the capacitance change caused by the disconnection. That is, the controller 36 can suppress the occurrence of erroneous detection due to disconnection even if the threshold value of the change in capacitance is set to be low in accordance with the change in capacitance of the stylus pen.

[Configuration of sensing electrode]
The configuration of the sensing electrode will be described with reference to FIG. In FIG. 6, for convenience of explaining the arrangement of the plurality of sensing electrode lines constituting the sensing electrode 33SP, among the two sensing electrodes 33SP, the part constituting the four capacitance detection units ND is shown enlarged, and the sensing is performed. The line width of the electrode line is exaggerated.

  Each of the plurality of sensing electrodes 33SP includes a plurality of sensing main lines 33ML and a plurality of sensing sublines 33SL. The sensing main line 33ML has a different extension direction from the drive main line 31ML, and the sensing subline 33SL has a different extension direction from the drive subline 31SL. A plurality of sensing sublines 33SL intersect with one sensing main line 33ML, and a plurality of sensing main lines 33ML intersect with one sensing subline 33SL. The sensing main line 33ML and the sensing subline 33SL intersect to form at least one shape such as an L shape, an inverted L shape, or a cross.

  As shown in FIG. 6, each of the plurality of sensing main lines 33ML is a line segment having a linear shape extending along the second line direction DL2. The plurality of sensing main lines 33ML are line segments straddling two capacitance detection units ND adjacent to each other in the first electrode direction D1. A part of the sensing main line 33ML is a line segment that is interrupted between the capacitance detection units ND adjacent to each other in the second electrode direction D2.

  For example, the sensing main line 33ML is arranged along the second line direction DL2 with an interval 3WS that is three times as large as the main line interval WS in the first line direction DL1. That is, the sensing main line 33ML is provided in parallel with each other with a main line interval WM, provided with a main line interval 2WS that is twice the main line interval WS, and with the main line interval WS. Some are provided in parallel to each other with a triple main line interval 3WS.

  Each of the plurality of sensing sub-lines 33SL is a line segment having a linear shape extending along the first line direction DL1. A part of the plurality of sensing sub-lines 33SL is a line segment that is interrupted between the capacitance detection units ND adjacent to each other in the second electrode direction D2. The plurality of sensing sub-lines 33SL are arranged along the first line direction DL1 with an interval 7WM that is seven times the sub-line interval WM in the second line direction DL2. That is, the sensing sub-line 33SL is provided in parallel with each other with a main line interval WM, the sensing subline 33SL is provided in parallel with each other with a main line interval 2WM that is twice the main line interval WM, and the main line interval WM. Are provided in parallel to each other with a main line interval 3WM that is three times as large as. Further, the sensing sub-line 33SL has a main line interval WM of 4, 5, 6, and 7 times.

  Each of the plurality of sensing sub-lines 33SL connects the plurality of sensing main lines 33ML in parallel. A plurality of sensing sub-lines 33SL that connect a plurality of sensing main lines 33ML in parallel are included for each capacitance detection unit ND. Therefore, for example, as shown by a white circle in FIG. 6, even if a disconnection occurs in a part of the sensing main line 33ML, the sensing main line 33ML adjacent to the sensing main line 33ML disconnected from the sensing subline 33SL is used to A transmission path that bypasses is formed. In the transmission line of the sensing electrode 33SP, a resistance value almost the same as that in the normal state is obtained in a portion excluding the bypassed portion. As a result, the resistance value of the sensing electrode 33SP is increased due to an increase in the resistance value of a part of the sensing electrode line, as compared with the configuration in which the sensing electrode line is composed of only a line segment having a linear shape extending along the first electrode direction D1. The increase can be suppressed.

  Further, a part of the plurality of sensing main lines 33ML has a second main line end line segment 42a that extends from the second intersection 41 where the sensing main line 33ML and the sensing subline 33SL intersect. A part of the plurality of sensing sublines 33SL has a second subline end line segment 42b extending from the second intersection 41 first. A part of the second main line end line segment 42a and a part of the second sub line end line segment 42b have one pitch P on one side of the unit cell 44a formed when the drive electrode 31DP and the sensing electrode 33SP are overlapped. , The length is 2 pitches or less (see FIG. 7). The lengths of the second main line end line segment 42a and the second sub line end line segment 42b are preferably 1 pitch or less, and more preferably 1/2 pitch or less. The lengths of the second main line end line segment 42a and the second sub line end line segment 42b in the present embodiment are ½ pitch.

  The sensing main line 33ML and the sensing subline 33SL include a line segment that does not straddle between the capacitance detection units ND adjacent to each other in the second electrode direction D2, and form a second gap 43 between the capacitance detection units ND. Yes. Therefore, a part of the sensing main line 33ML has the second main line end line segment 42a at a position along the second gap 43, and a part of the sensing subline 33SL is at a position along the second gap 43. And a second sub-line end line segment 42b. In the example of FIG. 6, the second main line end line segment 42a and the second sub line end line segment 42b are also formed in one capacitance detection unit ND.

  For example, in a circle D indicated by a broken line in FIG. 6, in the sensing electrode 33SP, in one capacitance detection unit ND, a sensing subline 33SL that intersects the sensing main line 33ML facing the second gap 43 positioned between the sensing electrodes 33SP in one capacitance detection unit ND. The length of the second sub-line end line segment 42b is ½ pitch when one side of the unit cell 44a is 1 pitch P.

  Further, as indicated by a broken line circle E in FIG. 6, in the sensing electrode 33SP, both ends of the sensing main line 33ML are part of a plurality of sensing main lines 33ML straddling the two capacitance detection units ND adjacent in the first electrode direction D1. The length of the second main line end line segment 42a of the part is a length of ½ pitch. The length of the second main line end line segment 42a at both ends of the sensing main line 33ML that does not straddle the capacitance detection unit ND adjacent in the first electrode direction D1 may be ½ pitch or less.

  In addition, as shown by a broken line F in FIG. 6, in the sensing electrode 33SP, a part of the plurality of sensing sublines 33SL is connected to both ends of the sensing subline 33SL in one capacitance detection unit ND. The length of each second sub-line end line segment 42b having the end line segment 42b along the first line direction DL1 is ½ pitch. Note that the second sub-line end line segments 42b at both ends of the sensing sub-line 33SL straddling between the capacitance detection units ND adjacent to each other in the first electrode direction D1 may have a length of ½ pitch.

  As shown in FIG. 5A, a crack 103 may be formed at the second intersection 41 of the sensing main line 33ML and the sensing subline 33SL due to an etching failure or the like. The crack 103 may be disconnected while the touch panel 20 is repeatedly used. In addition, the dotted line part extended from the 2nd main line terminal line segment 42a has shown the conventional terminal line segment. The conventional end line segment is longer than the second main line end line segment 42a.

  As shown in FIG. 5B, the disconnected second main line end line segment 42a1 and second sub-line end line segment 42b1 have a length of ½ pitch when one side of the unit cell 44a is 1 pitch P. It is extremely short (see FIG. 7). The shorter the second main line end line segment 42a1 and the second sub-line end line segment 42b1 that are disconnected, the smaller the change in capacitance at the time of disconnection. Therefore, as in the case of the drive main line 31ML and the drive sub line 31SL, even if the opposite ends of the disconnection point are connected or disconnected, the change in the capacitance is reduced, and the controller 36 is It is possible to suppress erroneous detection of a change in capacitance. That is, the controller 36 can suppress the occurrence of erroneous detection due to disconnection even if the threshold value of the change in capacitance is set to be low in accordance with the change in capacitance of the stylus pen.

[Configuration of electrode for touch panel]
The configuration of the touch sensor electrode will be described with reference to FIG. In FIG. 7, the line width of each of the plurality of line segments is exaggerated for the convenience of describing the arrangement of the plurality of line segments constituting the touch sensor electrode. Further, the drive electrode line is indicated by a thick white line, and the sensing electrode line is indicated by a black thick line.

  As shown in FIG. 7, the plurality of line segments constituting the drive electrode 31DP and the plurality of line segments constituting the sensing electrode 33SP are lattices that are repetitions of unit lattices having a square shape that is an example of a quadrilateral shape. A pattern 44 is formed.

  That is, the drive main line 31ML is disposed at a position that intersects the sensing main line 33ML and that does not overlap the sensing subline 33SL in the first line direction DL1. The drive sub line 31SL is disposed at a position that intersects the sensing sub line 33SL and that does not overlap the sensing main line 33ML in the second line direction DL2. Furthermore, the sensing main line 33ML is disposed at a position that intersects with the drive main line 31ML and that does not overlap with the drive sub line 31SL in the second line direction DL2. Furthermore, the sensing subline 33SL is disposed at a position that intersects with the drive subline 31SL and that does not overlap the drive main line 31ML in the first line direction DL1.

  Here, the minimum main line interval WM of the drive main line 31ML, the minimum sub line interval WS of the drive sub line 31SL, the minimum main line interval WM of the sensing main line 33ML, and the minimum sub line interval WS of the sensing sub line 33SL are equal. Therefore, the unit lattice 44a constituting the lattice pattern 44 is a square. The unit cell 44a may have a rectangular shape that is slightly different in the size of adjacent sides and is close to a square. When one side of the square unit cell 44a is 1 pitch, the length of the first main line end line segment 38a of the drive main line 31ML and the first sub line end line segment 38b of the drive sub line 31SL is 1/2. It is the length of the pitch. The length of the second main line end line segment 42a of the sensing main line 33ML and the second sub line end line segment 42b of the sensing sub line 33SL is ½ pitch.

  Therefore, as shown by a broken line circle H in FIG. 7, one side of the partial unit cell 44a has a second main line end line segment 38a of the drive main line 31ML and a second of the sensing sub-line 33SL in the first line direction DL1. It is comprised by the subline end line segment 42b. Both the first main line end line segment 38a and the second sub line end line segment 42b are ½ pitch on one side of the unit cell 44a. The first main line end line segment 38a and the second sub line end line segment 42b extend from opposite ends of one side of the square to constitute one side of the unit cell 44a. That is, in one side constituting the unit cell 44a, the first main line end line segment 38a extends from one end to the other end along the first line direction DL1, and from the other end. The second sub-line end line segment 42b extends toward one end along the first line direction DL1.

  Further, as shown by a broken line circle G in FIG. 7, one side of a part of the unit cell 44a has a first sub-line end line segment 38b of the drive sub-line 31SL and a sensing main line 33ML in the second line direction DL2. 2 main line end line segment 42a. Both the first sub-line end line segment 38b and the second main line end line segment 42a have a length of ½ pitch of one side of the unit cell 44a. The first sub-line end line segment 38b and the second main line end line segment 42a extend from opposite ends of one side of the square to constitute one side of the unit cell 44a. That is, in one side constituting the unit cell 44a, the first sub-line terminal line segment 38b extends from one end to the other end along the second line direction DL2, and the other end. The second main line end line segment 42a extends toward one end along the second line direction DL2.

  When one side of the unit cell 44a includes the first sub-line end line segment 38b and the second main line end line segment 42a, the lengths of the first sub-line end line segment 38b and the second main line end line segment 42a are: A 1/2 pitch is preferable. This is because a line segment having a ½ pitch is easily processed as designed by etching at the time of manufacturing the touch sensor electrode. Of course, when one of the first sub-line end line segment 38b and the second main line end line segment 42a is longer than ½ pitch, the first sub-line end line segment 38b and the second main line end line segment 42a The other of becomes shorter.

  In addition, when one side of the unit cell 44a includes the first main line end line segment 38a and the second sub line end line segment 42b, the lengths of the first main line end line segment 38a and the second sub line end line segment 42b are also included. The length is preferably ½ pitch. This is because a line segment having a ½ pitch is easily processed as designed by etching at the time of manufacturing the touch sensor electrode. Of course, when one of the first main line end line segment 38a and the second sub line end line segment 42b is longer than ½ pitch, the first main line end line segment 38a and the second sub line end line segment 42b The other of becomes shorter.

  As shown in FIG. 8, generally, a detection area 10D in which the drive electrode lines and sensing electrode lines of the display panel 10 are three-dimensionally intersected with a display area 10S on which an image or the like is displayed overlaps with each other. It has a shape. The display area 10S is, for example, a rectangular area facing outside from the frame of the electronic device, and is an area in which image data and moving image data are displayed. The outer peripheral portion 45 of the display area 10S is an area that is hardly operated with a finger or a stylus pen. The outer peripheral portion 45 is, for example, a rectangular ring having a predetermined width from the outer peripheral edge of the display area 10S. And the outer peripheral part 45 is an area | region where the capacity | capacitance detection part ND was arranged in a ring in a line about the width of one capacity | capacitance detection part ND, for example. Of course, depending on the size of the capacitance detection unit ND, the width of the outer peripheral portion 45 may be equal to or more than two columns of the capacitance detection unit ND, or may be smaller than the capacitance detection unit ND.

  The display panel 10 is used for a palm-sized electronic device and has a display surface of about 4 inches to 6 inches. In such a display panel 10, the outer peripheral portion 45 is approximately 30% of the entire display area 10S. And the ratio of the outer peripheral part 45 becomes small, so that the inch size of the display area 10S is large. An area inside the outer peripheral portion 45 excluding the outer peripheral portion 45 is an actual operation region 46 that is actually touch-operated with a user's finger or stylus pen. Therefore, in the display panel 10, the operation area 46 occupying 70% or more of the display area is an area in which the lengths of the end line segments 38a, 38b, 42a, 42b are ½ pitch. Thereby, in the operation area 46, the electrostatic capacity accompanying the disconnection of the first main line end line segment 38a and the first sub line end line segment 38b and the disconnection of the second main line end line segment 42a and the second sub line end line segment 42b. Can be kept small.

  In this case, the outer peripheral portion 45 sets the threshold value for the change in capacitance of the controller 36 so as to lower the detection sensitivity for the change in capacitance. For example, the threshold value of the capacitance change amount set for the capacitance detection unit ND is set to a value that is at least greater than the change in capacitance when the end line segment longer than ½ pitch existing in the outer peripheral portion 45 is disconnected. Set. As a result, the controller 36 does not detect the change even when the disconnection portion is connected or disconnected at the outer peripheral portion 45 and the capacitance changes, and causes the change in capacitance due to the disconnection. It is possible to suppress false detection.

  It should be noted that the change in capacitance due to the disconnection of the first main line end line segment 38a and the first sub line end line segment 38b and the disconnection of the second main line end line segment 42a and the second sub line end line segment 42b described above is reduced. Therefore, the ½ pitch may be an area of 70% or more of the detection area 10D where the drive electrode line and the sensing electrode line intersect three-dimensionally (see FIG. 1). This is because the detection area 10D is often formed to be slightly larger than the display area 10S, but can be regarded as substantially the same size as the display area 10S.

  In plan view facing the sensing surface, each of the drive electrode 31DP and the sensing electrode 33SP preferably has a black color in order to suppress light scattering. The blackening of the drive electrode 31DP and the sensing electrode 33SP is realized by, for example, an oxidation process of a metal wiring or a plating process of a metal film having a black color.

As described above, according to the first embodiment, the effects listed below can be obtained.
(1) The first main line end line segment 38a of the drive main line 31ML and the first sub line end line segment 38b of the drive sub line 31SL are 1/2 pitch long when one side of the unit cell 44a is 1 pitch. It is shorter. Therefore, even if the first main line end line segment 38a and the first sub line end line segment 38b are disconnected due to the crack 103 or the like, the change in capacitance at that time can be reduced, and erroneous detection is suppressed. be able to.

  (2) The second main line end line segment 42a of the sensing main line 33ML and the second sub line end line segment 42b of the sensing sub line 33SL are also 1/2 pitch long when one side of the unit cell 44a is 1 pitch. It ’s getting shorter. Therefore, even if the second main line end line segment 42a and the second sub line end line segment 42b are disconnected due to the crack 103 or the like, the change in capacitance at that time can be reduced, and erroneous detection is suppressed. be able to.

(3) Since the drive main line 31ML is connected by the drive sub line 31SL, an increase in the resistance value of the drive electrode 31DP due to an increase in the resistance value of a part of the drive electrode line can be suppressed.
(4) Since the sensing main line 33ML is connected by the sensing sub line 33SL, it is possible to suppress an increase in the resistance value of the sensing electrode 33SP due to an increase in the resistance value of a part of the sensing electrode line.

  (5) According to the touch sensor electrode 21, the drive electrode 31DP has a periodicity along the first electrode direction D1, and the sensing electrode 33SP has a periodicity along the second electrode direction D2. . On the other hand, each of the drive main line 31ML, the drive subline 31SL, the sensing main line 33ML, and the sensing subline 33SL has a linear shape extending along the direction intersecting the first electrode direction D1 and the second electrode direction D2. Have. Here, in a device on which the touch sensor electrode 21 is mounted, the operation target elements, which are elements to be operated on the touch panel 20, such as the pixels 15P and the black matrix 15a, and the touch sensor are usually arranged. This is aligned with the direction in which the capacitance detection parts ND are arranged in the working electrode 21. In this respect, with the configuration described above, interference between the periodicity of the drive main line 31ML and the drive subline 31SL and the periodicity of the operation target element is suppressed, and the sensing main line 33ML and the sensing subline 33SL are Interference between the periodicity possessed and the periodicity possessed by the operation target element is suppressed. Therefore, in a device on which the touch sensor electrode 21 is mounted, moire caused by the touch sensor electrode 21 is suppressed.

In addition, the said 1st Embodiment can also be suitably changed and implemented as follows.
The first main line end line segment 38a, the first sub line end line segment 38b, the second main line end line segment 42a, and the second sub line end line segment 42b having a length of ½ pitch are displayed in the display area 10S or detected. It may be 70% or more of the area 10D. That is, instead of the outer peripheral portion 45, for example, the display region 10S or the detection region 10D may be provided discretely.

  The lengths of the end line segments 38a, 38b, 42a, and 42b are not particularly limited as long as the length is 2 pitches or less of the unit cell 44a, and may be 1 pitch or the like.

[Second Embodiment]
With reference to FIGS. 9 to 11, a touch sensor electrode, a touch panel, and a display device according to the second embodiment will be described. In the second embodiment, the configuration of the drive electrode lines and the configuration of the sensing electrode lines are mainly different from the first embodiment. Below, the difference of these structures is mainly demonstrated, the same code | symbol is attached | subjected to the structure similar to the structure in 1st Embodiment, and the description is abbreviate | omitted.

[Drive electrode 31DP]
As shown in FIG. 9, each of the plurality of drive electrodes 31DP includes a plurality of drive main lines 31ML and a plurality of drive sub-lines 31SL. Each of the drive sub-lines 31SL connects the drive main lines 31ML adjacent to each other in parallel. Further, the sub-line interval in the first line direction DL1 of the drive sub-line 31SL is six times the main line interval WM in the second line direction DL2 of the drive main line 31ML, and forms a rectangular lattice pattern.

  Each of the plurality of drive main lines 31ML is a line segment having a linear shape extending along the first line direction DL1 between the first electrode direction D1 and the second electrode direction D2. The plurality of drive main lines 31ML are line segments straddling two capacitance detection units ND adjacent to each other in the second electrode direction D2. The drive main line 31ML is a line segment that is interrupted between the capacitance detection units ND adjacent to each other in the first electrode direction D1.

  The plurality of drive sub-lines 31SL are line segments having a linear shape extending along the second line direction DL2, and the sub-line interval is 6WM. Each of the plurality of drive sub-lines 31SL connects the plurality of drive main lines 31ML in parallel. A plurality of drive sub-lines 31SL that connect a plurality of drive main lines 31ML in parallel are included for each capacity detection unit ND. Therefore, for example, as shown by a white circle in FIG. 9, even if a disconnection occurs in a part of the drive main line 31ML, the drive main line 31ML adjacent to the drive main line 31ML disconnected from the drive sub line 31SL is used to A transmission path that bypasses is configured. Then, in the transmission line of the drive electrode 31DP, in the portion excluding the detoured portion, almost the same resistance value as usual is obtained. As a result, the resistance value of the drive electrode 31DP is increased due to an increase in the resistance value of a part of the drive electrode line, as compared with the configuration in which the drive electrode line is composed of only a line segment having a linear shape extending along the second electrode direction D2. The increase is suppressed.

  The drive main line 31ML has a line segment that does not straddle between the capacitance detection units ND adjacent to each other in the first electrode direction D1, and a first gap 39 is formed between the capacitance detection units ND. For this reason, a first main line end line segment 38a extending from the first intersection 37 where the drive main line 31ML and the drive sub line 31SL intersect is formed at a position along the first gap 39. The first main line end line segment 38a has a length of 1 pitch and a length of 3 pitches when one side of the unit cell 44a formed when the drive electrode 31DP and the sensing electrode 33SP are overlapped is 1 pitch P. Have Among these, the first main line end line segment 38a surrounded by a dotted circle A in FIG. 9 having a length of 2 pitches or less has a length of 1 pitch.

  As shown in FIG. 5B, the disconnected first pitch first main line end line segment 38a1 is extremely short. Therefore, even if the opposite ends of the disconnection portion are connected or disconnected, the change in capacitance is reduced, and the controller 36 is prevented from erroneously detecting this change in capacitance. be able to.

[Configuration of sensing electrode]
As shown in FIG. 10, each of the plurality of sensing electrodes 33SP includes a plurality of sensing main lines 33ML and a plurality of sensing sublines 33SL. Each of the sensing sub-lines 33SL connects the sensing main line 33ML in parallel. Further, the sub-line interval in the second line direction DL2 of the sensing sub-line 33SL is six times the main line interval WM in the first line direction DL1 of the sensing main line 33ML, forming a rectangular lattice pattern. That is, the sensing main line 33ML has a different extension direction from the drive main line 31ML, and the sensing subline 33SL has a different extension direction from the drive subline 31SL. On the other hand, the relative positional relationship between the sensing main line 33ML and the sensing subline 33SL is the same as the relative positional relationship between the drive main line 31ML and the drive subline 31SL.

  As shown in FIG. 10, each of the plurality of sensing main lines 33ML is a line segment having a linear shape extending along the second line direction DL2. The plurality of sensing main lines 33ML are line segments straddling two capacitance detection units ND adjacent to each other in the first electrode direction D1. The sensing main line 33ML is a line segment that is interrupted between the capacitance detection units ND adjacent to each other in the second electrode direction D2.

  The plurality of sensing sub-lines 33SL are line segments having a linear shape extending along the first line direction DL1, and the sub-line interval is 6WM. Each of the plurality of sensing sub-lines 33SL connects the plurality of sensing main lines 33ML in parallel. A plurality of sensing sub-lines 33SL that connect a plurality of sensing main lines 33ML in parallel are included for each capacitance detection unit ND. Therefore, for example, as shown by a white circle in FIG. 10, even if a disconnection occurs in a part of the sensing main line 33ML, the sensing main line 33ML adjacent to the sensing main line 33ML disconnected from the sensing subline 33SL is used to A transmission path that bypasses is configured. In the transmission line of the sensing electrode 33SP, a resistance value substantially the same as that in a normal state is obtained in a portion excluding the bypassed portion. As a result, the resistance value of the sensing electrode 33SP is increased due to an increase in the resistance value of a part of the sensing electrode line, as compared with the configuration in which the sensing electrode line is composed of only a line segment having a linear shape extending along the first electrode direction D1. The increase is suppressed.

  The sensing main line 33ML has a line segment that does not straddle between the capacitance detection units ND adjacent to each other in the second electrode direction D2, and forms a second gap 43 between the capacitance detection units ND. For this reason, the second main line end line segment 42a extending from the second intersection 41 where the sensing main line 33ML and the sensing subline 33SL intersect is formed at a position along the second gap 43. The second main line end line segment 42a has a length of 1 pitch and a length of 3 pitches when one side of the unit cell 44a formed when the drive electrode 31DP and the sensing electrode 33SP are overlapped is 1 pitch P. Have Among these, the 2nd main line end line segment 42a enclosed with the circle B of the broken line in FIG. 10 which is 2 pitches or less is the length of 1 pitch.

  As shown in FIG. 5B, the disconnected second main line end line segment 42a1 of 1 pitch is extremely short. Therefore, even if the opposite ends of the disconnection portion are connected or disconnected, the change in capacitance is reduced, and the controller 36 is prevented from erroneously detecting this change in capacitance. be able to.

[Configuration of electrode for touch panel]
As shown in FIG. 11, the plurality of line segments constituting the drive electrode 31DP and the plurality of line segments constituting the sensing electrode 33SP are repetitions of a unit cell 44a having a square shape which is an example of a quadrilateral shape. A lattice pattern 44 is formed. In the present embodiment, the drive main line 31ML is disposed at a position intersecting with the sensing main line 33ML.

  Here, the minimum main line interval WM of the drive main line 31ML is equal to the minimum main line interval WM of the sensing main line 33ML. Therefore, the unit lattice 44a constituting the lattice pattern 44 is a square. In particular, the first main line end line segment 38a and the second main line end line segment 42a having a length of 1 pitch constitute one side of the unit cell 44a. The first main line end line segment 38a and the second main line end line segment 42a having a length of 1 pitch have a small change in capacitance even when the opposite ends of the disconnection portion are connected or disconnected. Thus, the controller 36 can be prevented from erroneously detecting this change in capacitance.

[Third Embodiment]
With reference to FIG.12 and FIG.13, the electrode for touch sensors, the touch panel, and the display apparatus in 3rd Embodiment are demonstrated. In the third embodiment, the configuration of the drive electrode lines and the configuration of the sensing electrode lines are mainly different from the first embodiment. Below, the difference of these structures is mainly demonstrated, the same code | symbol is attached | subjected to the structure similar to the structure in 1st Embodiment, and the description is abbreviate | omitted.

[Drive electrode 31DP]
As shown in FIG. 12, each drive electrode 31DP includes a plurality of drive electrode lines 31L arranged in the first electrode direction D1, for example, 15 drive electrode lines 31L. Each drive electrode line 31L is composed of a plurality of reference patterns 31RP arranged along the first electrode direction D1. An interval between two drive electrode lines 31L adjacent to each other in the second electrode direction D2 is equal to each other, even between two drive electrodes 31DP adjacent to each other in the second electrode direction D2.

  Each of the 15 drive electrode lines 31L constituting one drive electrode 31DP is electrically connected to the drive electrode lines 31L adjacent to each other in the first electrode direction D1.

  A line segment having a linear shape extending along the first line direction DL1 between the first electrode direction D1 and the second electrode direction D2 is a drive main line 31ML. A line segment having a linear shape extending along the second line direction DL2 between the first electrode direction D1 and the second electrode direction D2 is a drive sub line 31SL. The drive main line 31ML and the drive sub line 31SL having different inclinations are alternately connected to each other in the first electrode direction D1. Two drive main lines 31ML are connected to one drive sub line 31SL in opposite directions, and each form a first intersection 37. A portion extending forward from the first intersection 37 of the drive sub-line 31SL is a first sub-line end line segment 38b.

[Sensing electrode 33SP]
In addition, the sensing electrode 33SP is different from the drive electrode 31DP in that the reference direction of the reference pattern constituting the sensing electrode 33SP is the second electrode direction D2, but the configuration of the reference pattern of the sensing electrode 33SP is the drive electrode It is mutually equivalent to the configuration of the reference pattern in 31DP. FIG. 13 is a plan view showing a planar structure viewed from the direction in which the drive electrode 31DP and the sensing electrode 33SP are stacked. In FIG. 13, in order to easily distinguish between the plurality of drive electrode lines 31L constituting the drive electrode 31DP and the plurality of sensing electrode lines 33L constituting the sensing electrode 33SP, the drive electrode line 31L is a relatively thin line. On the other hand, the sensing electrode wire 33L is indicated by a relatively thick line.

  Specifically, as shown in FIG. 13, the sensing electrode 33SP includes a plurality of sensing electrode lines 33L, for example, 15 sensing electrode lines 33L arranged in the first electrode direction D1. Each sensing electrode line 33L is composed of a plurality of reference patterns 33RP arranged along the second electrode direction D2. An interval between two sensing electrode lines 33L adjacent to each other in the first electrode direction D1 is within one sensing electrode 33SP, and between two sensing electrodes 33SP adjacent to each other in the first electrode direction D1. Even so, they are equal to each other.

  Each of the 15 sensing electrode lines 33L constituting one sensing electrode 33SP is electrically connected to the sensing electrode lines 33L adjacent to each other in the first electrode direction D1.

  A line segment having a linear shape extending along the second line direction DL2 is the sensing main line 33ML. A line segment having a linear shape extending along the first line direction DL1 is a sensing subline 33SL. The sensing main line 33ML and the sensing subline 33SL having different inclinations are alternately connected to each other. Two sensing main lines 33ML are connected in the opposite direction to one sensing subline 33SL to form a second intersection 41. A portion extending from the second intersection 41 of the sensing subline 33SL first becomes a second subline end line segment 42b.

[Configuration of electrode for touch panel]
As shown in FIG. 13, the plurality of line segments constituting the drive electrode 31DP and the plurality of line segments constituting the sensing electrode 33SP are lattices that are repetitions of a unit lattice having a square shape that is an example of a quadrilateral shape. A pattern 44 is formed.

  Here, as shown in FIGS. 12 and 13, the length of the drive sub-line 31SL is three times the length LD of the first sub-line end line segment 38b. The length of the drive main line 31ML is twice the length LD of the first sub-line end line segment 38b. As shown in FIG. 13, the length of the sensing subline 33SL is three times the length SL of the second subline end line segment 42b. The length of the sensing main line 33ML is twice the length SL of the second sub-line end line segment 42b. The midpoint of the drive main line 31ML of the adjacent drive electrode line 31L is positioned on the extension line of the drive sub line 31SL. Further, the midpoint of the sensing main line 33ML of the adjacent sensing electrode line 33L is located on the extended line of the sensing subline 33SL. The length LD of the first sub-line end line segment 38b is equal to the length SL of the second sub-line end line segment 42b. Therefore, as shown in FIG. 13, the unit lattice 44a constituting the lattice pattern 44 is a square.

  In particular, the first sub-line end line segment 38b and the second sub-line end line segment 42b having a length of 1 pitch constitute one side of the unit cell 44a. Accordingly, even if the first sub-line end line segment 38b and the drive sub-line 31SL having a length of 1 pitch are disconnected at the first intersection 37, the opposite ends of the disconnected part are connected or disconnected. Thus, the change in capacitance is reduced, and the controller 36 can be prevented from erroneously detecting this change in capacitance. Further, even if the second sub-line end line segment 42b and the sensing sub-line 33SL of the pitch length are disconnected at the second intersection 41 and the opposite end portions of the disconnection part are connected or disconnected, It is possible to suppress the change in the capacitance from being reduced and the controller 36 from erroneously detecting the change in the capacitance.

[Fourth Embodiment]
A touch sensor electrode, a touch panel, and a display device according to the fourth embodiment will be described with reference to FIGS. 14 to 16. In the fourth embodiment, the configuration of the drive electrode lines and the configuration of the sensing electrode lines are mainly different from the first embodiment. Below, the difference of these structures is mainly demonstrated, the same code | symbol is attached | subjected to the structure similar to the structure in 1st Embodiment, and the description is abbreviate | omitted.

[Drive electrode 31DP]
As shown in FIG. 14, one drive electrode 31DP includes one pad 31P and a drive electrode band 31B having a lattice shape and connected to the pad 31P. The pad 31P has a strip shape extending along the second electrode direction D2, and the width of the pad 31P along the first electrode direction D1 is the drive pad width WPD.

  The drive electrode band 31B includes a plurality of drive main lines 31ML having a linear shape extending along the first line direction DL1 between the first electrode direction D1 and the second electrode direction D2, and a first orthogonal to the first line direction DL1. And a plurality of drive sub-lines 31SL having a linear shape extending along the two-line direction DL2.

  One drive electrode 31DP is a strip-shaped electrode extending along the second electrode direction D2, and the plurality of drive electrodes 31DP are arranged side by side with a drive electrode interval GDP that is a predetermined interval along the first electrode direction D1. Yes.

  A first line direction DL1 that is a direction in which each drive main line 31ML constituting one drive electrode band 31B extends forms an opposing angle θ1 that is a predetermined angle with the first electrode direction D1. The facing angle θ1 is, for example, 45 °. Each drive main line 31ML extends along the first line direction DL1 within the region partitioned by the drive pad width WPD in the first electrode direction D1. In the plurality of drive main lines 31ML, two drive main lines 31ML adjacent to each other in the second electrode direction D2 have a drive interval GD1 that is a predetermined interval along the second line direction DL2 orthogonal to the first line direction DL1. They are lined up.

  In the plurality of drive sub-lines 31SL constituting one drive electrode band 31B, the second line direction DL2 in which each drive sub-line 31SL extends is orthogonal to the first line direction DL1 and is opposed to the first electrode direction D1. θ1 is formed. Each drive sub-line 31SL extends along the second line direction DL2 inside the region partitioned by the drive pad width WPD in the first electrode direction D1. Two drive sub-lines 31SL adjacent to each other in the first electrode direction D1 are aligned with a drive interval GD2 along the first line direction DL1. The drive interval GD2 is equal to the drive interval GD1, for example.

  In one drive electrode band 31B, each drive main line 31ML intersects with drive subline 31SL, and each drive subline 31SL intersects with drive main line 31ML. As a result, the plurality of drive main lines 31ML and the plurality of drive sub-lines 31SL form a lattice pattern 44D composed of a plurality of unit lattices 44Da having a rectangular shape, here, a square shape.

  A first gap 39 having a GDP width is formed between the adjacent drive electrode bands 31B, and the drive main line 31ML and the drive sub line 31SL are interrupted. The drive main line 31ML is a first main line end line segment 38a, and the drive sub line 31SL is a first sub line end line segment 38b. The first main-line end line segment 38a and the first sub-line end line segment 38b have an LD of the unit cell 44Da as long as the length from the first intersection 37 between the drive main line 31ML and the drive sub-line 31SL is interrupted. It is shorter than one side.

[Sensing electrode 33SP]
As shown in FIG. 15, one sensing electrode 33SP includes one pad 33P and a sensing electrode band 33B having a lattice shape and connected to the pad 33P. The pad 33P has a strip shape extending along the first electrode direction D1, and the width of the pad 33P along the second electrode direction D2 is the sensing pad width WPS.

  The sensing electrode band 33B extends along the first line direction DL1 and a plurality of sensing main lines 33ML having a linear shape extending along the second line direction DL2 between the first electrode direction D1 and the second electrode direction D2. And a plurality of sensing sub-lines 33SL having a linear shape.

  The sensing electrode 33SP is a strip electrode extending along the first electrode direction D1, and the plurality of sensing electrodes 33SP are arranged along the second electrode direction D2 with a predetermined distance between the sensing electrodes GSP.

  A second line direction DL2, which is a direction in which each sensing main line 33ML constituting one sensing electrode band 33B extends, forms an opposing angle θ1 that is a predetermined angle with the second electrode direction D2. The facing angle θ1 is, for example, 45 °. Each sensing main line 33ML extends along the second line direction DL2 within the region partitioned by the sensing pad width WPS in the second electrode direction D2. In the plurality of sensing main lines 33ML, two sensing main lines 33ML adjacent to each other in the first electrode direction D1 are arranged with a sensing interval GS2 being a predetermined interval along the first line direction DL1.

  In a plurality of sensing sub-lines 33SL constituting one sensing electrode band 33B, the first line direction DL1 in which each sensing sub-line 33SL extends is orthogonal to the second line direction DL2 and is opposed to the second electrode direction D2. θ1 is formed. Each sensing subline 33SL extends along the first line direction DL1 within the region partitioned by the sensing pad width WPS in the second electrode direction D2. Two sensing sub-lines 33SL adjacent to each other in the second electrode direction D2 are arranged with a sensing interval GS1 along the second line direction DL2. The sensing interval GS2 is equal to the sensing interval GS1, for example.

  In one sensing electrode band 33B, each sensing main line 33ML intersects with the sensing subline 33SL, and each sensing subline 33SL intersects with the sensing main line 33ML. As a result, the plurality of sensing main lines 33ML and the plurality of sensing sublines 33SL form a lattice pattern 44S composed of a plurality of unit lattices 44a having a rectangular shape.

  Between the sensing electrode strips 33B adjacent to each other, a second gap 43 having a GSP width is formed, and the sensing main line 33ML and the sensing subline 33SL are interrupted. The sensing main line 33ML is a second main line end line segment 42a, and the sensing subline 33SL is a second subline end line segment 42b. The second main line end line segment 42a and the second sub line end line segment 42b have the length LS of the unit cell 44Sa as long as the length from the second intersection 41 between the sensing main line 33ML and the sensing subline 33SL is interrupted. It is shorter than one side.

[Touch sensor electrodes]
As shown in FIG. 16, the plurality of drive electrodes 31DP overlap with the plurality of sensing electrodes 33SP in plan view. A region where one drive electrode 31DP and one sensing electrode 33SP intersect three-dimensionally is a capacitance detection unit ND. And in the electrode 21 for touch sensors, an electrostatic capacitance is formed in the direction where the drive electrode 31DP and the sensing electrode 33SP are stacked.

  As described above, the grid pattern 44D of the drive electrode 31DP and the grid pattern 44S of the sensing electrode 33SP overlap. A dummy pattern 47 is located in a portion where the drive electrode 31DP and the sensing electrode 33SP do not overlap. The dummy pattern 47 is a part of the drive electrode 31DP and is not connected to the sensing electrode 33SP.

  The first main-line end line segment 38a and the first sub-line end line segment 38b having a length of 1 pitch constitute one side of the unit cell 44Da. Accordingly, the first main line end line segment 38a and the first sub line end line segment 38b having a length of 1 pitch are disconnected at the first intersection 37, and the opposite ends of the disconnection portion are connected or disconnected. Even if it becomes, it can suppress that the change of an electrostatic capacitance becomes small and the controller 36 erroneously detects this change of an electrostatic capacitance.

  Even in the second main line end line segment 42a and the second sub line end line segment 42b having a length of one pitch, one side of the unit cell 44Sa is formed. Therefore, the second main line end line segment 42a and the second sub line end line segment 42b having a length of 1 pitch are disconnected at the second intersection 41, and the opposite ends of the disconnection portion are connected or disconnected. Even if it becomes, it can suppress that the change of an electrostatic capacitance becomes small and the controller 36 erroneously detects this change of an electrostatic capacitance.

[Modification of touch panel]
As shown in FIG. 17, the transparent substrate 31 and the transparent adhesive layer 32 may be omitted from the touch sensor electrode 21 constituting the touch panel 20. In such a configuration, one surface facing the display panel 10 among the surfaces of the transparent dielectric substrate 33 is set as the drive electrode surface 31S, and the drive electrode 31DP may be positioned on the drive electrode surface 31S. The sensing electrode 33SP may be positioned on the surface of the transparent dielectric substrate 33 that faces the drive electrode surface 31S.

  In such a configuration, the drive electrode 31DP is formed, for example, by patterning one thin film formed on the drive electrode surface 31S.

  As shown in FIG. 18, in the touch panel 20, the drive electrode 31 DP, the transparent substrate 31, the transparent adhesive layer 32, the transparent dielectric substrate 33, the sensing electrode 33 SP, and the transparent adhesive layer 23 in order from the components close to the display panel 10. The cover layer 22 may be located.

  In such a configuration, for example, the drive electrode 31DP is formed on the drive electrode surface 31S that is one surface of the transparent substrate 31, and the sensing electrode 33SP is the sensing electrode surface 33S that is one surface of the transparent dielectric substrate 33. Formed. The surface of the transparent substrate 31 facing the drive electrode surface 31S and the surface of the transparent dielectric substrate 33 corresponding to the sensing electrode surface 33S are bonded by the transparent adhesive layer 32.

  The display panel 10 and the touch panel 20 may not be formed separately, and the touch panel 20 may be formed integrally with the display panel 10. In such a configuration, for example, among the touch sensor electrodes 21, a plurality of drive electrodes 31DP are positioned on the TFT layer 13, while a plurality of sensing electrodes 33SP are positioned between the color filter substrate 16 and the upper polarizing plate 17. It can be configured as a mold. Alternatively, an on-cell configuration in which the touch sensor electrode 21 is located between the color filter substrate 16 and the upper polarizing plate 17 may be employed.

D1 ... first electrode direction, D2 ... second electrode direction, ND ... capacitance detector, DL1 ... first line direction, DL2 ... second line direction, P ... pitch, 10 ... display panel, 10S ... display region, 10D ... Detection region, 11 ... lower polarizing plate, 12 ... thin film transistor substrate, 13 ... TFT layer, 14 ... liquid crystal layer, 15 ... color filter layer, 15a ... black matrix, 15P ... pixel, 16 ... color filter substrate, 17 ... upper polarization 20: Touch panel, 20S: Operation surface, 21: Touch sensor electrode, 22: Cover layer, 23: Transparent adhesive layer, 31 ... Transparent substrate, 31DP ... Drive electrode, 31ML ... Drive main line, 31SL ... Drive sub-line, 33 ... Transparent dielectric substrate, 33SP ... Sensing electrode, 33ML ... Sensing main line, 33SL ... Sensing sub-line, 34 ... Selection circuit, 35 ... Detection circuit, 6 ... Controller, 37 ... First intersection, 38a ... First main line end line segment, 38b ... First subline end line segment, 39 ... First gap, 41 ... Second intersection point, 42a ... Second main line end line segment, 42b ... second sub-line end line segment, 43 ... second gap, 44 ... lattice pattern, 44a ... unit lattice, 45 ... outer periphery, 46 ... operation region, 47 ... dummy pattern.

Claims (10)

A plurality of first elements having a band shape extending along a first electrode direction that is one direction and arranged with a first gap along a second electrode direction that intersects the first electrode direction. Electrodes,
A plurality of first electrodes that have a strip shape extending along the second electrode direction, are arranged with a second gap along the first electrode direction, and three-dimensionally intersect with each of the plurality of first electrodes. Two electrodes,
Each of the plurality of first electrodes has a plurality of first main lines that are linear segments extending along a first line direction that is one direction, and a direction that intersects the first line direction. A plurality of first sub-lines that are line segments having a linear shape extending along two line directions,
Each of the plurality of second electrodes includes a plurality of second main lines that are linear segments extending along the second line direction, and a line segment having a linear shape extending along the first line direction. A plurality of second sublines,
In a plan view facing a plane including the plurality of second electrodes, the plurality of first main lines, the plurality of first sub lines, the plurality of second main lines, and the second sub lines have a rectangular shape. Constituting a lattice pattern that is a repetition of the unit cell having
Each of the first electrodes has a plurality of first intersections formed by intersections of the first main line and the first sub-line,
Each of the second electrodes has a plurality of second intersections formed by the intersection of the second main line and the second subline,
At least one of the plurality of first main lines and the plurality of first sublines includes a first end line segment that extends first from the first intersection,
At least one of the plurality of second main lines and the plurality of second sublines includes a second end line segment that extends from the second intersection,
In the region of 70% or more of the entire detection region, which is a region where the first electrode and the second electrode intersect three-dimensionally, the lengths of the first end line segment and the second end line segment are the units. An electrode for a touch sensor having a length of 2 pitches or less when one side of the grid is 1 pitch. At least one of the first terminal line of the first sub-line intersecting the first main line facing the first gap of the first electrode, and an end of the first electrode of the second electrode. 2. The touch sensor according to claim 1, wherein at least one of at least one of the second terminal lines of the second sub-line intersecting the second main line facing two gaps has a length of 2 pitches or less. Electrode. The overlapping portions of the plurality of first electrodes and the plurality of second electrodes are capacitance detection units,
At least one of the first end line segments at both ends of the first main line straddling the two adjacent capacitance detectors, and both ends of the second main line straddling the two capacitor detectors adjacent to each other The touch sensor electrode according to claim 1, wherein at least one of at least one of the second end line segments has a length of 2 pitches or less. At least one of the first end line segments at both ends of the at least one first sub-line and at least one of the second end line segments at both ends of the at least one second sub-line The electrode for a touch sensor according to any one of claims 1 to 3, wherein the length is 2 pitches or less. 5. The touch sensor electrode according to claim 1, wherein an area of 70% or more of the entire detection area is configured by an area excluding an outer peripheral portion of the detection area. 6. The touch sensor electrode according to claim 1, wherein the plurality of first end line segments and the plurality of second end line segments have a length of one pitch or less. The touch sensor electrode according to any one of claims 1 to 5, wherein the plurality of first terminal line segments and the plurality of second terminal line segments have a length of ½ pitch or less. The touch sensor electrode according to claim 1, wherein the unit cell is a square. A touch sensor electrode comprising: a plurality of first electrodes; a plurality of second electrodes; and a transparent dielectric layer sandwiched between the plurality of first electrodes and the plurality of second electrodes;
A cover layer covering the touch sensor electrode;
A peripheral circuit for measuring a capacitance between the first electrode and the second electrode;
The touch sensor electrode is:
A touch panel, which is the electrode for a touch sensor according to any one of claims 1 to 8. A display panel for displaying information;
A touch panel that transmits the information displayed on the display panel;
A drive circuit for driving the touch panel,
The display device according to claim 9, wherein the touch panel is a touch panel according to claim 9.

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