WO2013128657A1 - 入力装置 - Google Patents

入力装置 Download PDF

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Publication number
WO2013128657A1
WO2013128657A1 PCT/JP2012/059964 JP2012059964W WO2013128657A1 WO 2013128657 A1 WO2013128657 A1 WO 2013128657A1 JP 2012059964 W JP2012059964 W JP 2012059964W WO 2013128657 A1 WO2013128657 A1 WO 2013128657A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
insulating layer
electrode
input device
bridge wiring
Prior art date
Application number
PCT/JP2012/059964
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
佐藤　清
小林　潔
正宜 竹内
Original Assignee
アルプス電気株式会社
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 アルプス電気株式会社 filed Critical アルプス電気株式会社
Priority to KR1020157011890A priority Critical patent/KR101615077B1/ko
Priority to KR1020147022303A priority patent/KR101615056B1/ko
Priority to CN201290001195.6U priority patent/CN204178350U/zh
Publication of WO2013128657A1 publication Critical patent/WO2013128657A1/ja

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04111—Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate

Definitions

  • the present invention relates to an input device in which a translucent first electrode layer and a translucent second electrode layer connected by a bridge wiring layer are provided on the surface of a translucent substrate,
  • the present invention relates to an input device in which an insulating layer that insulates a first electrode layer and a bridge wiring layer has a structure that is inconspicuous when color display light is applied from the back.
  • Patent Document 1 and Patent Document 2 disclose a capacitive touch panel that detects the operation position of a finger and detects its operation position.
  • an electrode pattern extending in the X direction and an electrode pattern extending in the Y direction are formed on the same surface of the substrate.
  • the electrode pattern extending in the Y direction has rhomboid electrode units arranged in the Y direction and connection wirings connecting adjacent electrode units.
  • the electrode pattern extending in the X direction has electrode units that are separated from each other with the connection wiring arranged in the X direction.
  • An insulating layer is formed on the connection wiring, and a bridge wiring for conducting the electrode units arranged in the X direction is formed on the surface of the insulating layer.
  • driving power is sequentially applied to a plurality of electrode patterns extending in the X direction and a plurality of electrode patterns extending in the Y direction.
  • a capacitance is formed between the finger and the electrode unit in addition to the capacitance between the electrode units, and the current flowing through the electrode pattern is reduced. Change.
  • the touch panel substrate, electrode pattern, and insulating layer are formed of a translucent material, and the touch panel is placed on the surface of the color liquid crystal panel.
  • the color liquid crystal panel has a color filter inside or outside.
  • the color filter expresses the color of an image by combining a set of three sub-pixels of R (red), G (green), and B (blue).
  • sub-pixels of each color are rectangular, and are regularly arranged in the X direction and the Y direction.
  • the X direction and the Y direction coincide with the direction in which the electrode pattern of the touch panel extends.
  • the insulating layer that insulates the bridge wiring is square, and each insulating layer has an edge parallel to the X direction and an edge parallel to the Y direction. is doing.
  • the edge of the insulating layer has such a shape, the edge of the insulating layer is the same as the arrangement direction of the sub-pixels of the color filter.
  • Edge flicker may cause light flicker. In particular, when display light of any of the three primary colors is given from the color liquid crystal panel, the color tends to flicker at the insulating layer portion.
  • both the bridge wiring that conducts between the electrode units of the electrode pattern and the insulating layer that insulates them extend obliquely with respect to the X direction and the Y direction. Yes.
  • adjacent electrode units that are electrically connected to each other are not arranged in the X direction and the Y direction, and the respective electrode units are alternately arranged obliquely.
  • an insulating layer is formed in a diagonal pattern in accordance with the diagonally extending bridge wiring.
  • the electrode units that should be arranged on the straight line toward the Y direction at the same position on the X coordinate are not located on the straight line. They are located at different positions.
  • electrode units that should be arranged on a straight line toward the X direction at the same position on the Y coordinate are not located on the straight line but are arranged at different positions in the Y direction. Therefore, the general touch panel in which the electrode layers are arranged in both the X direction and the Y direction has a different driving method and detection method, and is not versatile.
  • the present invention solves the above-described conventional problems.
  • a color display is provided in a versatile input device in which the first electrode layer and the second electrode layer are arranged in the X direction and the Y direction orthogonal to each other.
  • An object of the present invention is to provide an input device in which the presence of an insulating layer that insulates a bridge wiring layer is less noticeable when light is applied.
  • the present invention provides an input device in which a light-transmitting first electrode layer and a light-transmitting second electrode layer are provided on the same surface of a light-transmitting substrate.
  • the first electrode layer has a plurality of first main electrode portions arranged in a first direction, and a plurality of connection portions connecting the first main electrode portions, and the second electrode
  • the layer has a plurality of second main electrode portions arranged in a second direction perpendicular to the first direction across the coupling portion,
  • a bridge wiring layer that conducts between adjacent second main electrode portions and a translucent insulating layer that insulates the connecting portion are provided, the bridge wiring layer extends in a second direction, and the insulating layer Has an edge that is not parallel to both the first direction and the second direction.
  • a display panel that provides display light is provided on the back side of the substrate, a color filter is provided on the inside or the outer surface of the display panel, and each subpixel of the color filter is a first pixel. And are arranged in the second direction.
  • the sub-pixel is rectangular and its long side is oriented parallel to the first direction or the second direction.
  • the insulating layer is polygonal and all sides extend in a direction not parallel to both the first direction and the second direction.
  • the insulating layer is preferably a quadrilateral or more polygon.
  • the edge of the insulating layer has a curved shape.
  • the insulating layer is circular or elliptical.
  • the edge of the insulating layer that insulates the first electrode layer and the bridge wiring layer is oriented obliquely with respect to both the X direction and the Y direction.
  • the edge of the sub-pixel of the color filter and the edge of the insulating layer are not parallel, and the presence of the insulating layer is less noticeable due to the color display light. It becomes easy to prevent the phenomenon of light flickering in the layer portion.
  • FIG. 1 is an exploded perspective view showing an input device according to an embodiment of the present invention
  • Sectional drawing which shows the structure of the input device of this invention
  • Explanatory drawing which shows the arrangement pattern of an electrode layer
  • FIG. 3 is an enlarged view of a cross-sectional view taken along line IV-IV.
  • a plan view showing the relative positional relationship between the arrangement of the sub-pixels of the color filter and the insulating layer In the comparative example, a plan view showing the relative positional relationship between the arrangement of the sub-pixels of the color filter and the insulating layer;
  • the top view which shows the relationship between the pattern of an electrode layer, and the insulating layer of a modification is a top view which shows the relationship between the pattern of an electrode layer, and the insulating layer of a modification.
  • A) (B) is a top view which shows the relationship between the pattern of an electrode layer, and the insulating layer of a modification.
  • the input device 1 shown in FIG. 1 and FIG. 2 is one in which a touch panel 10 and a display panel 20 are integrated.
  • the input device 1 of the present invention includes a device that is distributed only on the touch panel 10 for the purpose of being combined with the display panel 20.
  • the X direction is the horizontal direction of the input device 1
  • the Y direction is the vertical direction of the input device 1.
  • the Y direction is the first direction and the X direction is the second direction.
  • the touch panel 10 constituting the input device 1 has a first electrode layer 12 and a second electrode layer 13 formed on a surface 11 a directed to the input side of a single translucent substrate 11.
  • the translucency in this specification is not limited to pure transparency, and preferably includes, for example, a total light transmittance of 80% or more.
  • substrate 11 is comprised from the flexible film-form material, for example, a PET film is used.
  • the first electrode layer 12 and the second electrode layer 13 are made of a light-transmitting conductive material such as ITO, SnO 2 , or ZnO.
  • the first electrode layer 12 has a plurality of first main electrode portions 12a having a square shape or a rhombus shape.
  • the plurality of first main electrode portions 12a are linearly arranged in the Y direction, and the first main electrode portions 12a adjacent to each other in the Y direction are connected by the connecting portion 12b.
  • the first main electrode portion 12a and the connecting portion 12b are integrally formed of the same conductive material.
  • the second electrode layer 13 has a plurality of second main electrode portions 13a.
  • the second main electrode portion 13a has the same shape and the same area as the first main electrode portion 12a.
  • the second main electrode portions 13a are formed independently of each other so as to sandwich the connecting portion 12b of the first electrode layer 12, and are arranged linearly in the X direction.
  • a transparent substrate 11 such as PET by a sputtering method or a vapor deposition method with a film thickness of 0.01 to 0.05 ⁇ m.
  • FIG. 7 shows a part of a specific pattern shape of the first main electrode portion 12a and the connecting portion 12b of the first electrode layer 12, and a pattern shape of the second main electrode portion 13a of the second electrode layer 13. A part of is shown.
  • an insulating layer 14 is formed on each connecting portion 12 b of the first electrode layer 12.
  • the insulating layer 14 is formed of a light-transmitting organic insulating material such as a novolac resin. After the first electrode layer 12 and the second electrode layer 13 are formed on the surface 11a of the substrate 11, the insulating layer 14 is formed in a predetermined shape on the surface of the connecting portion 12b by photolithography or the like.
  • the bridge wiring layer 15 is formed on the surface of the insulating layer 14, and the second main electrode portions 13a adjacent to each other in the X direction across the connecting portion 12b are made conductive.
  • the bridge wiring layer 15 is made of a laminated conductive layer of ITO / CuNi or ITO / Ni, a laminated conductive layer with ITO / Au or ITO / Au alloy, ITO / CuNi / ITO, ITO / Au / ITO, ITO / Au alloy / ITO It is formed with a laminated conductive layer.
  • the bridge wiring layer 15 is thin and thin so that it is difficult to see.
  • a bridge wiring layer 15 is formed by forming a thin conductive layer on the insulating layer 14 and performing selective etching.
  • a part of the first electrode layer 12 connected in the Y direction by the connecting portion 12b becomes the Y extraction electrode layer 16 for each column and is extracted outside the detection region.
  • a plurality of first land portions 17 are formed on the edge portion of the substrate 11, and each Y extraction electrode layer 16 is individually connected to the first land portion 17.
  • a part of the second electrode layer 13 connected in the X direction by the bridge wiring layer 15 becomes an X extraction electrode layer 18 for each row and is drawn outside the detection region.
  • the surface 11 a of the substrate 11 of the touch panel 10 is covered with the cover layer 2.
  • the cover layer 2 is formed of a translucent resin such as polycarbonate or a glass plate.
  • the cover layer 2 and the touch panel 10 are bonded via a translucent optical adhesive layer (OCA).
  • OCA translucent optical adhesive layer
  • the touch panel 10 has a capacitance formed between the first electrode layer 12 and the second electrode layer 13, but when the finger is brought into contact with the surface of the cover layer 2 by an input operation, the first main layer 10 The capacitance between the electrode portion 12a or the second main electrode portion 13a and the finger is added, and the total value of the capacitance changes.
  • the first main electrode portions 12 a constituting the first electrode layer 12 are arranged in a straight line in the Y direction, and the second electrode layer 13 is arranged.
  • the second main electrode portions 12b to be configured are arranged in a straight line in the X direction. Therefore, the driving power is sequentially applied to the first electrode layer 12 to monitor the current of the second electrode layer 13, and the driving power is sequentially applied to the second electrode layer 13 to thereby apply the first electrode layer 12.
  • the position on the XY coordinate of the position where the finger touches the cover layer 2 can be calculated relatively easily by a general-purpose method.
  • a back film 3 such as PET is bonded to the back of the touch panel 10 via a translucent optical adhesive layer (OCA).
  • OCA translucent optical adhesive layer
  • An ITO layer 4 is provided on the entire upper or lower surface of the back film 3, and the ITO layer is set to the ground potential.
  • the ITO layer 4 can reduce the influence of the driving signal of the display panel 20 on the back and stabilize the detection operation of the touch panel 10.
  • the display panel 20 shown in the sectional view of FIG. 2 is a color liquid crystal panel.
  • the display panel 20 has a light guide layer 21 for backlight. Light emitted from a light source such as an LED is applied from the light guide layer 21 to the layer above it.
  • a polarizing filter 22 On the light guide layer 21, a polarizing filter 22, a lower glass substrate 23, a lower transparent electrode 24, and an alignment layer 25 are sequentially stacked.
  • An alignment layer 27, an upper transparent electrode 28, a color filter 29, an upper glass substrate 31, and a polarizing filter 32 are disposed in this order via the liquid crystal layer 26.
  • FIG. 5 shows the sub-pixels 35R, 35G, and 35B constituting the color filter 29.
  • the subpixel 35R is a red layer
  • the subpixel 35G is a green layer
  • the subpixel 35B is a blue layer.
  • the three-color subpixels 35R, 35G, and 35B all have the same shape and the same area, and have a rectangular shape in which the short side is parallel to the X direction and the long side is parallel to the Y direction.
  • the sub-pixels 35R, 35G, and 35B of three colors form one set, and each set is arranged in a straight line in the X direction and the Y direction.
  • Driving power is applied to the lower transparent electrode 24 and the upper transparent electrode 28 of the display panel 20, and the amount of light transmitted through the liquid crystal pixels corresponding to the respective subpixels is controlled, so that color display is performed by an additive mixing method. .
  • the color filter 29 may be provided on the outer surface above the upper glass substrate 31 of the display panel 20.
  • the color display light emitted from the display panel 20 is transmitted forward through the back film 3, the touch panel 10 and the cover layer 2, and a color image is given to the operator.
  • the insulating layer 14 and the bridge wiring layer 15 are provided at a plurality of locations on the touch panel 10.
  • the bridge wiring layer 15 is formed as thin and thin as possible, and is designed so that the bridge wiring layer 15 is not conspicuous when viewed by the operator. Has been.
  • the insulating layer 14 needs to be formed in a certain wide area in order to ensure insulation between the connecting portion 12 b of the first electrode layer 12 and the bridge wiring layer 15. Therefore, in the input device 1 according to the first embodiment, as shown in FIGS. 5 and 7, the insulating layer 14 is a square that is a polygon having four sides, and an edge portion 14 a that forms sides orthogonal to each other.
  • the edge portion 14b is formed to be inclined with respect to the XY axis, which is the arrangement direction of the subpixels 35R, 35G, and 35B.
  • FIG. 6 shows a comparative example.
  • the same square insulating layer 14 having the same dimensions as the embodiment of FIG. 5 is formed, but the edge 14a and the edge 14b forming the two sides of the insulating layer 14 are respectively in the X-axis and It is formed in a direction parallel to the Y axis.
  • the inclination angle of the edge portion 14a with respect to the X axis and the inclination angle of the edge portion 14b with respect to the Y axis is between 15 and 30 degrees. Preferably there is. This tendency is the same even if the insulating layer 14 is rectangular.
  • FIG. 8 and the following are explanatory diagrams showing modifications of the insulating layer pattern effective in the present invention.
  • the insulating layer 14A shown in FIG. 8A is the same square insulating layer 14 as shown in FIGS. 5 and 7, and the two edges 14a and 14b are at an angle of 45 degrees with respect to the X axis and the Y axis. It is formed to tilt.
  • the insulating layer 14B illustrated in FIG. 8B has a rhombus shape or a diamond shape in which the width dimension of the X axis of the insulating layer 14A illustrated in FIG. 8A is shorter than the width dimension of the Y axis.
  • the insulating layers 14A and 14B shown in FIGS. 8A and 8B are not parallel to the sides of the subpixels 35R, 35G, and 35B, particularly the long sides, so that the implementation shown in FIGS. Similar to the embodiment, it is easy to prevent flickering generated in the color display light passing through the insulating layer 14.
  • the insulating layer 14C is a polygonal hexagon, and the four edges are inclined with respect to the sides of the subpixels 35R, 35G, and 35B.
  • the insulating layer 14D shown in FIG. 10A and the insulating layer 14E shown in FIG. 10B are octagonal polygons.
  • the insulating layers 14D and 14E are formed such that all edges are inclined with respect to the sides of the subpixels 35R, 35G, and 35B. Therefore, the insulating layers 14C, 14D, and 14E can easily prevent the color display light from flickering.
  • the insulating layer 14F shown in FIG. 11A is a perfect circle, and the insulating layer 14G shown in FIG. 11B is an ellipse or an oval.
  • the insulating layers 14F and 14G have edge portions that are not parallel to the sides of the sub-pixels 35R, 35G, and 35B, so that it is easy to prevent flickering of color display light.
  • the pattern shape of the insulating layer may be a shape in which a linear edge extending in an inclined manner with respect to both the X direction and the Y direction and a curved edge are combined.

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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)
  • Position Input By Displaying (AREA)
  • Liquid Crystal (AREA)
PCT/JP2012/059964 2012-02-29 2012-04-12 入力装置 WO2013128657A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1020157011890A KR101615077B1 (ko) 2012-02-29 2012-04-12 입력 장치
KR1020147022303A KR101615056B1 (ko) 2012-02-29 2012-04-12 입력 장치
CN201290001195.6U CN204178350U (zh) 2012-02-29 2012-04-12 输入装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012042794A JP5036913B1 (ja) 2012-02-29 2012-02-29 入力装置
JP2012-042794 2012-02-29

Publications (1)

Publication Number Publication Date
WO2013128657A1 true WO2013128657A1 (ja) 2013-09-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2012/059964 WO2013128657A1 (ja) 2012-02-29 2012-04-12 入力装置

Country Status (5)

Country Link
JP (1) JP5036913B1 (ko)
KR (2) KR101615056B1 (ko)
CN (2) CN204390204U (ko)
TW (3) TWI502465B (ko)
WO (1) WO2013128657A1 (ko)

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Publication number Priority date Publication date Assignee Title
JP5839132B2 (ja) 2012-09-27 2016-01-06 株式会社村田製作所 タッチパネル
JP6002047B2 (ja) * 2013-01-11 2016-10-05 アルプス電気株式会社 入力装置
KR200474148Y1 (ko) * 2013-01-31 2014-08-25 제이 터치 코퍼레이션 터치 감응 디스플레이 장치
CN103970378B (zh) * 2013-01-31 2018-03-02 宸鸿科技(厦门)有限公司 触控显示装置
US9110528B2 (en) 2013-02-03 2015-08-18 J Touch Corporation Touch-sensitive display apparatus
JP6338548B2 (ja) 2015-01-29 2018-06-06 アルプス電気株式会社 入力装置

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JP2010160670A (ja) * 2009-01-08 2010-07-22 Seiko Epson Corp タッチパネルの製造方法、タッチパネル、表示装置、及び電子機器
JP2012038353A (ja) * 2010-02-24 2012-02-23 Kyocera Corp 入力装置、表示装置、および携帯端末

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Publication number Publication date
KR20140115346A (ko) 2014-09-30
CN204178350U (zh) 2015-02-25
TWI502466B (zh) 2015-10-01
JP5036913B1 (ja) 2012-09-26
KR101615056B1 (ko) 2016-04-22
TWI502465B (zh) 2015-10-01
KR101615077B1 (ko) 2016-04-22
TW201342177A (zh) 2013-10-16
KR20150056669A (ko) 2015-05-26
CN204390204U (zh) 2015-06-10
JP2013178700A (ja) 2013-09-09
TW201535227A (zh) 2015-09-16
TW201535226A (zh) 2015-09-16

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