WO2021100354A1 - タッチパネル - Google Patents

タッチパネル Download PDF

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Publication number
WO2021100354A1
WO2021100354A1 PCT/JP2020/038456 JP2020038456W WO2021100354A1 WO 2021100354 A1 WO2021100354 A1 WO 2021100354A1 JP 2020038456 W JP2020038456 W JP 2020038456W WO 2021100354 A1 WO2021100354 A1 WO 2021100354A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrode
touch panel
wiring
portions
oblique direction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2020/038456
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
優志 北村
誠 團野
譲司 秋月
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Japan Aviation Electronics Industry Ltd
Original Assignee
Japan Aviation Electronics Industry Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Japan Aviation Electronics Industry Ltd filed Critical Japan Aviation Electronics Industry Ltd
Priority to CN202080073342.XA priority Critical patent/CN114585993B/zh
Priority to US17/766,695 priority patent/US12014017B2/en
Priority to EP20891199.0A priority patent/EP4030270B1/en
Priority to KR1020227013022A priority patent/KR102613419B1/ko
Publication of WO2021100354A1 publication Critical patent/WO2021100354A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0448—Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04107—Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material

Definitions

  • the present invention relates to a touch panel.
  • the touch panel has an electrode layer.
  • the electrode layer includes a sensor electrode pattern portion and a wiring pattern portion.
  • the sensor electrode pattern portion and the wiring pattern portion are separated from each other except for the connection points connected to each other. If there is a difference between the pattern shape in the sensor electrode pattern portion and the pattern shape in the wiring pattern portion, spots will appear when the touch panel is viewed, and the display quality will deteriorate.
  • Patent Document 1 discloses a touch panel switch device capable of suppressing such a deterioration in display quality.
  • the touch panel switch device 90 disclosed in Patent Document 1 includes a mesh-patterned sensor electrode pattern portion 92 and a non-linear wiring pattern portion 94.
  • the wiring pattern portion 94 is formed so as to form a part of the mesh pattern of the sensor electrode pattern portion 92.
  • the touch panel described in Patent Document 1 still has a relatively large difference between the pattern shape of the sensor electrode pattern portion and the pattern shape of the wiring pattern portion. Therefore, there is a demand for further improvement in the visibility of the touch panel.
  • An object of the present invention is to provide a touch panel capable of further improving the visibility of the touch panel.
  • the sensitivity of the sensor electrode pattern portion can be increased by lowering its resistance value.
  • the resistance value increases, but the effect on the sensitivity is not affected. It was a little.
  • the inventors of the present invention changed their mindset and instead of bringing the pattern shape of the wiring pattern portion closer to the pattern shape of the sensor electrode pattern portion, the pattern shape of the sensor electrode pattern portion was changed to the pattern shape of the wiring pattern portion. I decided to bring it closer. As a result, the present invention realizes improvement in visibility while suppressing a decrease in sensitivity of the touch panel. Specifically, the present invention provides the following touch panel as a means for solving the above-mentioned problems.
  • One aspect of the present invention is a touch panel as a first touch panel, which includes a sensor electrode and a detection unit having a plurality of lead wires connected to the sensor electrode.
  • the lead wires are electrically separated from each other and are electrically separated from each other.
  • Each of the lead-out wirings is provided with a wiring main part.
  • the sensor electrode includes a plurality of electrode main portions and a plurality of connection portions.
  • Each of the wiring main portion and the electrode main portion is formed by repeatedly arranging unit patterns having a predetermined shape in the first direction.
  • the two electrode main portions adjacent to each other in the second direction orthogonal to the first direction are connected to each other by at least one of the connecting portions.
  • the connection portions closest to each other in the second direction are located at different positions in the first direction.
  • the three consecutive unit patterns are with one electrode main portion located next to the electrode main portion in the second direction.
  • a touch panel connected or not connected by two or less of the above-mentioned connecting portions.
  • the visibility of the touch panel is improved by preventing or suppressing the sensor electrode from being conspicuous while suppressing the decrease in sensitivity. Can be done.
  • FIG. 1 It is sectional drawing which shows the schematic structure of the touch panel by one Embodiment of this invention. It is a top view which shows the touch panel of FIG.
  • the protective layer is omitted.
  • the first electrode, the second electrode, the dummy electrode, the lead-out wiring, the outer peripheral ground electrode, and the frame wiring included in the electrode layer are simplified, and their approximate arrangements are shown.
  • the dummy electrode shows a portion located between the first electrode and the second electrode, and the other portions are omitted.
  • the conductor pattern corresponds to a part of the first electrode, a part of the second electrode, and a part of the lead-out wiring.
  • the conductor pattern also includes a plurality of short patterns. Note that FIG. 3 is different from FIG. 2 in that the number of lead wires is two. It is a figure which shows an example of the conductor pattern in the region surrounded by the broken line B of the touch panel of FIG.
  • the conductor pattern includes a part of the first electrode, a part of the second electrode, and a part of the dummy electrode.
  • the connection portion is omitted in each of the first electrode and the second electrode. It is a figure which shows an example of the conductor pattern in the region surrounded by the broken line C of the touch panel of FIG.
  • the conductor pattern includes a part of the outer peripheral ground wiring and a part of the first electrode. In the first electrode, the connecting portion is omitted.
  • connection portion is omitted.
  • connection portion shows the 2nd modification of the conductor pattern of FIG. In each of the first conductor and the second conductor, the connection portion is omitted.
  • connection portion is omitted.
  • the conductor pattern contains a plurality of branches.
  • 1st modification of the arrangement of the connection part in the 1st conductor or the 2nd conductor included in the conductor pattern of FIG. The connection is highlighted.
  • connection It is a figure which shows the 2nd modification of the arrangement of the connection part in the 1st conductor or the 2nd conductor included in the conductor pattern of FIG.
  • the connection is highlighted. It is a figure which shows the 3rd modification of the arrangement of the connection part in the 1st conductor or the 2nd conductor included in the conductor pattern of FIG. The connection is highlighted. It is a figure which shows the 4th modification of the arrangement of the connection part in the 1st conductor or the 2nd conductor included in the conductor pattern of FIG. The connection is highlighted. It is a figure which shows the 5th modification of the arrangement of the connection part in the 1st conductor or the 2nd conductor included in the conductor pattern of FIG. The connection is highlighted.
  • connection portion is omitted in each of the first electrode and the second electrode. It is a figure which shows the 2nd modification of the conductor pattern of FIG. It is a figure which shows the 3rd modification of the conductor pattern of FIG. It is a figure which shows the modification of the conductor pattern of FIG.
  • the conductor pattern includes a part of the outer peripheral ground wiring and a part of the first electrode, as well as a part of a dummy electrode located between them.
  • the connection portion is omitted in each of the first electrode and the outer peripheral ground wiring.
  • One second electrode and a portion of the corresponding first electrode are shown.
  • the touch panel 10 includes a base material 12, an electrode layer 14, and a protective layer 16.
  • the electrode layer 14 has a conductor pattern formed on one surface of the base material 12.
  • the protective layer 16 is provided on one surface of the base material 12 so as to cover the electrode layer 14.
  • the base material 12 is a plate-shaped or film-shaped member.
  • the base material 12 is made of a light-transmitting material such as glass or resin.
  • the conductor pattern included in the electrode layer 14 may be printed and formed on one surface of the base material 12 using conductive ink. Alternatively, the conductor pattern included in the electrode layer 14 may be formed by etching a conductive film formed by vacuum vapor deposition or the like on one surface of the base material 12.
  • the protective layer 16 may be formed by spin coating or printing using an ink-like resin. Alternatively, the protective layer 16 may be formed by attaching a cover member made of glass or resin with an adhesive.
  • the electrode layer 14 has a detection unit 21 and a peripheral edge portion 23.
  • the peripheral edge portion 23 surrounds the periphery of the detection unit 21.
  • a plurality of first electrodes 31, a plurality of second electrodes (sensor electrodes) 33, and a plurality of dummy electrodes 35 are arranged in the detection unit 21.
  • the first lead-out wiring 37 is connected to the first electrode 31, respectively.
  • the first lead-out wiring 37 is arranged on the peripheral edge portion 23.
  • a second lead-out wiring (lead-out wiring) 39 is connected to the second electrode 33, respectively.
  • the second lead-out wiring 39 is arranged from the detection unit 21 to the peripheral edge portion 23.
  • An outer peripheral ground wiring 41 is further arranged on the peripheral edge portion 23.
  • the outer peripheral ground wiring 41 is provided around the detection unit 21.
  • each of the first electrode 31 and the second electrode 33 is formed in a comb-teeth shape.
  • each of the first electrodes 31 has a first main portion 311 and a plurality of first facing portions 313.
  • the first main portion 311 extends along the first direction.
  • the first facing portion 313 extends from the first main portion 311 along a second direction orthogonal to the first direction.
  • each of the second electrodes 33 has a second main portion 331 and at least one second facing portion 333.
  • the second main portion 331 extends along the first direction.
  • the second facing portion 333 extends from the second main portion 331 along the second direction.
  • the first direction is the Y direction and the second direction is the X direction.
  • the first facing portion 313 extends from the first main portion 311 in the + X direction
  • the second facing portion 333 extends from the second main portion 331 in the ⁇ X direction.
  • the first electrode 31 and the second electrode 33 form a plurality of detection rows 210.
  • the number of detection columns 210 is five.
  • the detection rows 210 are arranged in the second direction.
  • Each of the detection rows 210 is composed of one first electrode 31 and four second electrodes 33.
  • the second electrodes 33 are arranged along the first direction.
  • the number and arrangement of the detection columns 210 can be arbitrarily set. Further, in each of the detection rows 210, the number of the first electrodes 31 and the number of the second electrodes 33 can be arbitrarily set.
  • the touch panel 10 of the present embodiment is a mutual capacitance type touch panel.
  • the touch panel 10 of the present embodiment includes a detection unit 21 having a sensor electrode 33 and a plurality of lead-out wirings 39 connected to the sensor electrode 33.
  • each of the first lead-out wires 37 is pulled out from the corresponding first electrode 31 in the ⁇ Y direction.
  • each of the second lead-out wires 39 extends directly from the corresponding second electrode 33 or in the + X direction, and then is pulled out in the ⁇ Y direction.
  • the first lead-out wiring 37 and the second lead-out wiring 39 are electrically separated from each other.
  • the first lead-out wiring 37 and the second lead-out wiring 39 have a common pattern shape.
  • the first lead-out wiring 37 has the same configuration as the second lead-out wiring 39, which will be described later with reference to FIG. However, this does not apply to the peripheral portion 23.
  • each of the first lead-out wiring 37 and the second lead-out wiring 39 does not have to have a pattern shape, and may be formed as, for example, a simple linear wiring.
  • some of the second lead-out wires 39 have an extension portion 391 arranged in the detection portion 21 and extending along the first direction.
  • three of the four second lead-out wires 39 corresponding to each of the detection rows 210 have an extension portion 391. These three extension portions 391 are arranged at predetermined intervals in the second direction.
  • each of the first electrode 31 and the second electrode 33 has a plurality of electrode main portions 50. Further, each of the second lead-out wiring 39 has one wiring main portion 60. As described above, in the present embodiment, the sensor electrode 33 has a plurality of electrode main portions 50, and the lead-out wiring 39 has a plurality of wiring main portions 60. The electrode main portion 50 and the wiring main portion 60 have a common pattern shape. The electrode main portion 50 and the wiring main portion 60 are arranged at equal intervals in the second direction.
  • each of the electrode main portions 50 is formed by repeatedly arranging unit patterns 500 having a predetermined shape in the first direction.
  • the plurality of unit patterns 500 are continuous.
  • each of the electrode main portions 50 has a zigzag shape.
  • each of the wiring main portions 60 is formed by repeatedly arranging unit patterns 600 having a predetermined shape in the first direction.
  • the plurality of unit patterns 600 are continuous.
  • each of the wiring main portions 60 has a zigzag shape.
  • the number of repetitions of the unit pattern 500 or 600 depends on the size of the region in which they are formed. Therefore, the number of repetitions is not always an integer.
  • the unit pattern 500 includes the first part 511 and the second part 513.
  • the first part 511 extends in the first oblique direction intersecting both the first direction and the second direction.
  • the second part 513 extends from one end of the first part 511 in the second oblique direction intersecting all the directions of the first direction, the second direction and the first oblique direction.
  • the first oblique direction is the + X direction and the + Y direction
  • the second oblique direction is the ⁇ X direction and the + Y direction.
  • the first part 511 may extend in the second oblique direction
  • the second part 513 may extend in the first oblique direction.
  • the unit pattern 600 has the same shape and size as the unit pattern 500. Specifically, the unit pattern 600 includes the first part 611 and the second part 613.
  • the first part 611 extends in the first oblique direction
  • the second part 613 extends in the second oblique direction from one end of the first part 611.
  • the present invention is not limited to this.
  • the first part 611 may extend in the second oblique direction
  • the second part 613 may extend in the first oblique direction.
  • each of the first electrode 31 and the second electrode 33 further has a plurality of connecting portions 52.
  • the sensor electrode 33 has a plurality of connecting portions 52.
  • Each of the connecting portions 52 connects the electrode main portions 50 adjacent to each other in the second direction. In other words, the two electrode main portions 50 adjacent to each other in the second direction are connected to each other by at least one connecting portion 52.
  • each of the connecting portions 52 extends in the first oblique direction or the second oblique direction.
  • Each of the connecting portions 52 connects two first portions 511 or second portions 513 adjacent to each other in the first oblique direction or the second oblique direction.
  • each of the connecting parts 52 is an extension of the first part 511 or the second part 513 to be connected.
  • the number of connecting portions 52 is smaller than the number of unit patterns 500. This is to make the pattern shapes of the first electrode 31 and the second electrode 33 closer to the pattern shapes of the second lead-out wiring 39.
  • the nearest connecting portions 52 correspond to two unit patterns 500. More than a distance away.
  • the closest connecting portions 52 are separated from each other by a distance corresponding to 3.5 units of the unit pattern 500 in the first direction.
  • the nearest connecting portions 52 are positioned so as to be displaced from each other by four units of the unit pattern 500 in the first direction.
  • the closest connecting portions 52 in the second direction are not located at the same position in the first direction. In other words, the closest connecting portions 52 in the second direction are at different positions in the first direction. This is because if the closest connecting portions 52 in the second direction are at the same position in the first direction, the possibility that the connecting portions 52 are visually conspicuous increases.
  • the closest connecting portions 52 in both the first direction and the second direction are positioned so as to be displaced from each other by two unit patterns 500 in the first direction.
  • the electrode layer 14 further has a plurality of short patterns 54.
  • each of the short patterns 54 is between the electrode main portions 50 adjacent to each other, between the electrode main portions 50 and the wiring main portions 60 adjacent to each other, and between the wiring main portions 60 adjacent to each other. It is located in one of them.
  • each of the short patterns 54 extends in the first oblique direction or the second oblique direction.
  • Each of the short patterns 54 is located on an extension of any of the first part 511, 611 and the second part 513, 613.
  • Each of the short patterns 54 is separated from the first electrode 31, the second electrode 33, and the second lead-out wiring 39.
  • each of the short patterns 54 is electrically independent from the electrode main portion 50, the wiring main portion 60, and the connection portion 52.
  • the short pattern 54 is not always necessary. However, due to the presence of the short pattern 54, the pattern formed by the electrode main portion 50 and the wiring main portion 60 can be made inconspicuous, and the presence of the connection portion 52 can be made inconspicuous.
  • the wiring main portion 60, the electrode main portion 50, the connecting portion 52, and the short pattern 54 have the same wiring width as each other. This is to prevent any of the wiring main portion 60, the electrode main portion 50, the connection portion 52, and the short pattern 54 from being visually conspicuous.
  • the present invention is not limited to this.
  • the wiring widths of the wiring main portion 60, the electrode main portion 50, the connecting portion 52, and the short pattern 54 may be different from each other as long as they are within a visually acceptable range.
  • the conductor patterns corresponding to the first electrode 31 and the second electrode 33 of the present embodiment each form an incomplete mesh pattern. Therefore, in the region where the conductor pattern corresponding to each of the first electrode 31 and the second electrode 33 is formed, the ratio occupied by the conductor pattern is smaller than that in the case of the conductor pattern having a perfect mesh pattern. In other words, the proportion of the conductor pattern in the region where the first electrode 31 and the second electrode 33 are formed is close to the proportion of the conductor pattern in the region where the second lead-out wiring 39 is formed. Therefore, the first electrode 31 and the second electrode 33 are not significantly noticeable as compared with the second lead-out wiring 39. Moreover, the sensitivity of the touch panel 10 is hardly reduced as compared with the case where the conductor pattern having a perfect mesh pattern is adopted. As described above, the touch panel 10 of the present embodiment can improve the visibility while suppressing the decrease in sensitivity.
  • the dummy electrode 35 includes at least one dummy electrode main portion 70.
  • the dummy electrode 35 includes a plurality of dummy electrode main portions 70.
  • the dummy electrode main portions 70 are arranged at equal intervals in the second direction.
  • Each of the dummy electrode main portions 70 is formed by using a unit dummy pattern 700 having the same shape as the unit pattern 500 of the first electrode 31 and the second electrode 33.
  • each of the dummy electrode main portions 70 is formed by repeatedly arranging the unit dummy patterns 700 in the first direction.
  • the plurality of unit dummy patterns 700 are continuous. The number of dummy electrode main portions 70 and the number of repetitions of the unit dummy pattern 700 depend on the size of the region where the dummy electrode 35 is formed.
  • the dummy electrode 35 is electrically separated from the first electrode 31 and the second electrode 33.
  • an extension portion 58 is provided at the end portion of the second electrode 33.
  • an extension portion 78 is provided at the end portion of the dummy electrode 35.
  • Each of the extension portions 58 and 78 extends in the second oblique direction. Due to the presence of the extension portion 58, the region where the dummy electrode 35 is arranged and the region where the second electrode 33 is arranged partially overlap in the first direction. Further, due to the presence of the extension portion 78, the region where the first electrode 31 is arranged and the region where the dummy electrode 35 is arranged partially overlap in the first direction.
  • an extension portion (not shown) extending in the direction opposite to the first oblique direction may be provided at the end of the first electrode 31.
  • the outer peripheral ground wiring 41 is formed as a so-called solid wiring.
  • a space is provided between the outer peripheral ground wiring 41 and the first electrode 31, and the outer peripheral ground wiring 41 and the first electrode 31 are electrically separated from each other.
  • each of the first electrode 31 and the second electrode 33 includes a plurality of electrode main portions 50.
  • Each of the electrode main portions 50 is configured by repeatedly arranging a unit pattern 500 having the same shape as the unit dummy pattern 700 of the second lead-out wiring 39 in the first direction.
  • the two electrode main portions 50 adjacent to each other in the second direction are connected by at least one connecting portion 52.
  • three consecutive unit patterns 500 are connected or not connected to one electrode main part 50 located next to each other in the second direction by two or less connecting parts 52. ..
  • each of the unit patterns 500 and 600 may be composed of, for example, four straight lines.
  • each of the unit patterns 500 and 600 may be composed of a combination of waveform curves.
  • the electrode layer 14 may have a branched portion 56 instead of the short pattern 54.
  • each of the electrode main portion 50 and the wiring main portion 60 may further include a plurality of branched portions 56.
  • each of the branch-shaped portions 56 extends in the first oblique direction or the second oblique direction.
  • Each of the branch portions 56 extends from the first part 511 or the second part 513 of the unit pattern 500, or the first part 611 or the second part 613 of the unit pattern 600.
  • the wiring width of the branched portion 56 is equal to the wiring width of the electrode main portion 50 and the wiring main portion 60.
  • One end of each of the branched portions 56 is separated from the electrode main portion 50, the wiring main portion 60, and the connecting portion 52.
  • the branched portion 56 makes the presence of the connecting portion 52 less noticeable than the short pattern 54.
  • the branched portion 56 requires a larger occupied area than the short pattern 54. Whether to use the short pattern 54 or the branched portion 56 can be determined according to the size, shape, arrangement, and the like of the unit patterns 500 and 600.
  • the arrangement of the plurality of connecting portions 52 in each of the first electrode 31 and the second electrode 33 can be changed in various ways.
  • only one connecting portion 52 is provided between the adjacent electrode main portions 50.
  • the closest connecting portions 52 in the second direction are displaced from each other by the amount corresponding to one unit pattern 500 in the first direction.
  • connecting portion 52 is provided between the adjacent electrode main portions 50.
  • the three connecting portions 52 form one group.
  • two groups are shown.
  • the two groups are offset in the second direction.
  • the connection portions 52 closest to each other in the second direction are displaced by the amount corresponding to the two unit patterns 500 in the first direction.
  • the arrangement of the connecting portion 52 is similar to the arrangement of the connecting portion 52 of FIG.
  • the two groups are offset in the second direction and offset in the first direction.
  • the two groups are displaced by the amount corresponding to one unit pattern 500 in the first direction.
  • only one connecting portion 52 is provided between the adjacent electrode main portions 50.
  • the three connecting portions 52 form one group.
  • two groups are shown.
  • the two groups are offset in the second direction.
  • the closest connecting portions 52 in the second direction extend in different directions from each other. Specifically, in the second direction, one of the nearest connecting portions 52 extends in the first oblique direction, and the other extends in the second oblique direction. Further, the closest connecting portions 52 in the second direction are separated from each other by a distance corresponding to one unit pattern 500 in the first direction.
  • one or two connecting portions 52 are provided between adjacent electrode main portions 50.
  • the three connecting portions 52 form one group.
  • three groups are shown.
  • the three groups are offset in the second direction.
  • the two connecting portions 52 arranged in the first direction are displaced by the amount corresponding to the four unit patterns 500 in the first direction.
  • the closest connecting portions 52 in the second direction are displaced from each other by the amount corresponding to the two unit patterns 500 in the first direction.
  • the electric resistance value in the second direction can be lowered as compared with the arrangement in which only one connecting portion 52 is provided between the adjacent electrode main portions 50.
  • two connecting portions 52 are provided between adjacent electrode main portions 50.
  • the four connecting portions 52 form one group.
  • three groups are shown.
  • the three groups are offset in the second direction.
  • the two connecting portions 52 arranged in the first direction are displaced by the amount corresponding to the four unit patterns 500 in the first direction.
  • the connecting portions 52 that are closest to each other in the second direction and that are closest to each other in the first direction are displaced by the amount corresponding to one unit pattern 500 in the first direction.
  • the arrangement of the connection portion 52 can further reduce the electric resistance value in the second direction as compared with the arrangement of the connection portion 52 of FIG. Further, since the connection between the adjacent electrode main portions 50 has redundancy, the connection reliability is high.
  • two connecting portions 52 are provided between adjacent electrode main portions 50.
  • the six connecting portions 52 form one group.
  • two groups are shown.
  • the two groups are offset in the second direction.
  • the two connecting portions 52 arranged in the first direction are displaced by the amount corresponding to the three unit patterns 500 in the first direction.
  • the connecting portions 52 that are closest to each other in the second direction and that are closest to each other in the first direction are displaced by the amount corresponding to one unit pattern 500 in the first direction.
  • the connection reliability is high because the connection between the adjacent electrode main portions 50 has redundancy.
  • the number and arrangement of the connecting portions 52 are determined based on the relationship between the required electrical resistance value and the visibility. However, in order to improve visibility, the number of connecting portions 52 should be small.
  • the adjacent electrode main portions 50 are connected to each other by at least one connecting portion 52. Under that condition, the three consecutive unit patterns 500 in each of the electrode main parts 50 are connected to one electrode main part 50 located next to each other in the second direction by two or less connecting parts 52. It is desirable not to be connected. This is to achieve both a reduction in resistance value and an improvement in visibility.
  • each of the electrode main parts 50 is composed of less than three unit patterns 500
  • each of the electrode main parts 50 is one electrode main part 50 and one located next to each other in the second direction. It is connected by the connection unit 52.
  • each of the electrode main portions 50 is composed of three or more continuous unit patterns 500.
  • the dummy electrode 35 may have a branched portion 76 instead of the short pattern 74.
  • the pattern shape of the dummy electrode 35 is preferably the same as the pattern shape of the first electrode 31 and the second electrode 33. This is to make the dummy electrode 35 visually inconspicuous from the first electrode 31 and the second electrode 33.
  • the dummy electrode 35 may be configured without using the unit dummy pattern 700. Specifically, the dummy electrode 35 may have at least one of the first intersection 80 and the second intersection 82.
  • the dummy electrode 35 shown in FIG. 17 or FIG. 18 has a plurality of first intersections 80 and a plurality of second intersections 82.
  • each of the first intersections 80 has two first separation line portions 801 separated in the first oblique direction. Further, the first intersection 80 has a first intervening portion 803 extending in the second oblique direction. The first intervening portion 803 is interposed between the first separation line portions 801 in the first oblique direction. Further, the second intersection 82 has two second separation line portions 821 separated in the second oblique direction. Further, the second intersection 82 has a second intervening portion 823 extending in the first oblique direction. The second intervening portion 823 is interposed between the second separation line portions 821 in the second oblique direction. In this modification, the first separation line portion 801 is also the second intervening portion 823, and the first intervening portion 803 is also the second separation line portion 821.
  • the outer peripheral ground wiring 41 may be configured by using one or more additional wiring main portions 62 having the same shape (structure) as the wiring main portion 60 (see FIG. 3). Further, a dummy electrode 35 may be formed between the outer peripheral ground wiring 41 and the first electrode 31. The dummy electrode 35 may be configured by using at least one of the first intersection 80 and the second intersection 82, depending on the shape and size of the region to be formed. The dummy electrode 35 may also be configured using the unit dummy pattern 700.
  • the outer peripheral ground wiring 41 is configured by using the additional wiring main portion 62 as in this modification, unlike the case where the outer peripheral ground wiring 41 is a solid wiring (see FIG. 5), the outer peripheral cover or the like is used. There is no need to hide the ground wiring 41. In particular, when the dummy electrode 35 is formed between the outer peripheral ground wiring 41 and the first electrode 31, it is not necessary to hide the outer peripheral ground wiring 41.
  • the first electrode 31 and the second electrode 33 may each have a first facing portion 313 and a second facing portion 333 having shapes different from the rectangular shape.
  • the second facing portion 333 of the second electrode 33 is formed in a triangular shape.
  • the first facing portion 313 of the first electrode 31 has a shape corresponding to the second facing portion 333.
  • a dummy electrode 35 may be formed in this space.
  • the second facing portion 333 of the second electrode 33 is formed in a butterfly shape.
  • the first facing portion 313 of the first electrode 31 has a shape corresponding to the second facing portion 333.
  • the second facing portion 333 is surrounded by the first facing portion 313.
  • a dummy electrode 35 may be formed in this space.
  • the present invention is based on Japanese Patent Application No. 2019-209254 filed with the Japan Patent Office on November 20, 2019, the contents of which form a part of the present specification by reference.
  • Electrode layer 16 Protective layer 21 Detection part 210 Detection row 23 Peripheral part 31 First electrode 311 First main part 313 First facing part 33 Second electrode (sensor electrode) 331 2nd main part 333 2nd facing part 35 Dummy electrode 37 1st lead-out wiring 39 2nd lead-out wiring (lead-out wiring) 391 Extension part 41 Outer circumference ground wiring 50 Electrode main part 500 Unit pattern 511 Part 1 513 Part 2 52 Connection part 54 Short pattern 56 Branched part 58 Extension part 60 Wiring main part 600 Unit pattern 611 Part 1 613 Part 2 62 Additional wiring main part 700 Unit dummy pattern 70 Dummy electrode main part 74 Short pattern 76 Branched part 78 Extension part 80 1st intersection 801 1st separation line part 803 1st intervening part 82 2nd intersection 821 2nd minute Separation part 823 Second intervening part

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Position Input By Displaying (AREA)
  • Push-Button Switches (AREA)
PCT/JP2020/038456 2019-11-20 2020-10-12 タッチパネル Ceased WO2021100354A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN202080073342.XA CN114585993B (zh) 2019-11-20 2020-10-12 触控面板
US17/766,695 US12014017B2 (en) 2019-11-20 2020-10-12 Touch panel having pattern shape of sensor electrode close to pattern shape of lead-out wire
EP20891199.0A EP4030270B1 (en) 2019-11-20 2020-10-12 Touch panel
KR1020227013022A KR102613419B1 (ko) 2019-11-20 2020-10-12 터치 패널

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JP2019-209254 2019-11-20
JP2019209254A JP7425584B2 (ja) 2019-11-20 2019-11-20 タッチパネル

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KR (1) KR102613419B1 (https=)
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KR20230022009A (ko) * 2021-08-06 2023-02-14 동우 화인켐 주식회사 터치 센서
WO2024195671A1 (ja) * 2023-03-23 2024-09-26 日本精機株式会社 タッチ入力装置

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JP7425584B2 (ja) 2024-01-31
KR102613419B1 (ko) 2023-12-12
CN114585993B (zh) 2024-05-24
EP4030270B1 (en) 2024-07-03
KR20220065836A (ko) 2022-05-20
US20240028174A1 (en) 2024-01-25
EP4030270A1 (en) 2022-07-20
TWI774084B (zh) 2022-08-11
TW202121141A (zh) 2021-06-01
CN114585993A (zh) 2022-06-03
EP4030270A4 (en) 2022-10-12
US12014017B2 (en) 2024-06-18

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