CN102971696A - Capacitive touch sensor - Google Patents

Capacitive touch sensor Download PDF

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Publication number
CN102971696A
CN102971696A CN2011800292292A CN201180029229A CN102971696A CN 102971696 A CN102971696 A CN 102971696A CN 2011800292292 A CN2011800292292 A CN 2011800292292A CN 201180029229 A CN201180029229 A CN 201180029229A CN 102971696 A CN102971696 A CN 102971696A
Authority
CN
China
Prior art keywords
electrode pattern
mentioned
pattern
electrostatic capacitance
electrode
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.)
Pending
Application number
CN2011800292292A
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Chinese (zh)
Inventor
韩定勋
金奇焕
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.)
Jin Display Co Ltd
Iljin Display Co Ltd
Original Assignee
Jin Display Co 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 Jin Display Co Ltd filed Critical Jin Display Co Ltd
Publication of CN102971696A publication Critical patent/CN102971696A/en
Pending legal-status Critical Current

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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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
    • H01B5/14—Non-insulated conductors or conductive bodies characterised by their form comprising conductive layers or films on insulating-supports
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/96—Touch switches
    • H03K17/962—Capacitive touch switches
    • 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
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
    • 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

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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)
  • Quality & Reliability (AREA)
  • Position Input By Displaying (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)

Abstract

A capacitive touch sensor comprises a window panel and a capacitive sensor disposed under said window panel. Said capacitive sensor comprises a substrate, a first electrode pattern and a second electrode pattern formed in an intersecting direction with each other on an upper side of the substrate, and circuit wires selectively connected to the first electrode pattern and the second electrode pattern. Said second electrode pattern comprises a plurality of electrode pattern elements, which are disposed in a mutually separated state on both sides of the first electrode pattern in an intersecting direction and in a direction in which the first electrode pattern is extended, and said neighboring electrode pattern elements are electrically connected with each other by a bridge electrode pattern which is positioned therebetween and crosses the upper part of the first electrode pattern.

Description

The electrostatic capacitance touch sensing
Technical field
The present invention relates to the electrostatic capacitance touch sensing.
Background technology
Electrostatic capacitance sensor is included in the upper surface of substrate along X electrode and the Y electrode of the direction formation of mutually reporting to the leadship after accomplishing a task, and these two electrodes need electrically insulated from one another.In order to make X electrode and Y electrode at the part electrical isolation of mutually reporting to the leadship after accomplishing a task, in the past, the form by the Y electrode being formed continuous lines, the X electrode is formed configured separate is electrically connected the X electrode that separates mutually after the form of the both sides of Y electrode mode realize.At this moment, in order to connect the X electrode deposited metal film of separation, and re-use photo-mask process the mode that it carries out composition is consisted of.
In metal film evaporation and the situation in the mode of photo-mask process composition, it is high and need to peel off etc. through painting photoresist, exposure, development, burn into the problem of a plurality of operations to have manufacturing expense.In addition, behind the composition, remaining metal film is seen easily, has the bad problem of outward appearance of product, for its improvement is attempted to form fine pattern, but this mode can not fundamentally deal with problems, have the problem of the rising that causes manufacturing expense.
Summary of the invention
Technical task
Of the present inventionly propose in order to solve aforesaid problem, problem to be solved by this invention is the electrode that forms electrostatic capacitance sensor in simple mode, and the electrostatic capacitance of improving identification and visible properties touch sensing is provided.
Solve the scheme of problem
In order to realize above-mentioned problem, comprise according to the electrostatic capacitance touch sensing of one embodiment of the invention: substrate; The 1st electrode pattern and the 2nd electrode pattern, the direction of mutually reporting to the leadship after accomplishing a task on the upper surface edge of aforesaid substrate forms; And wiring, optionally be connected to above-mentioned the 1st electrode pattern and above-mentioned the 2nd electrode pattern.Above-mentioned the 2nd electrode pattern comprises a plurality of electrode pattern elements, and the direction that these a plurality of electrode pattern elements are reported to the leadship after accomplishing a task along the direction that prolongs with above-mentioned the 1st electrode pattern is with the state configuration that the is separated from each other both sides at above-mentioned the 1st electrode pattern; Above-mentioned adjacent electrode pattern element is electrically connected mutually by the bridged electrodes pattern that crosses on above-mentioned the 1st electrode pattern in the middle of being positioned at.
Electrostatic capacitance touch sensing according to another embodiment of the present invention can also comprise the insulation course for above-mentioned the 1st electrode pattern of electrical isolation and above-mentioned bridged electrodes pattern.
The both-side ends of above-mentioned bridged electrodes pattern can form the outside at the two ends that are positioned at above-mentioned insulation course.
The both-side ends of above-mentioned bridged electrodes pattern can form the inboard at the two ends that are positioned at above-mentioned insulation course.
Above-mentioned bridged electrodes pattern can be formed by mode of printing by the transparent conductivity material.
The invention effect
According to the present invention, the bridged electrodes pattern electrical connection of the electrode of electrostatic capacitance sensor by being formed with mode of printing by transparent electric conductivity material, thus make simply, and can improve identification and visible properties.
Description of drawings
Fig. 1 is the concise and to the point exploded perspective view of electrostatic capacitance touch sensing according to an embodiment of the invention.
Fig. 2 represents the according to an embodiment of the invention figure of the electrode structure of electrostatic capacitance touch sensing.
Fig. 3 is the sectional view that III-the III line is cut open along Fig. 2.
Fig. 4 is that expression is according to the figure of the electrode structure of the electrostatic capacitance touch sensing of other embodiments of the invention.
Fig. 5 is the sectional view that V-the V line is cut open along Fig. 4.
Embodiment
Embodiments of the present invention will be described in detail with reference to the accompanying drawings.
In the accompanying drawings, in order clearly to show each layer and zone, amplify thickness and represent.In whole instructions, similar part is enclosed identical reference numeral.The part of layer or film etc. be positioned at other parts " on " or during D score, this not only comprises and is positioned at that other parts " just go up " or the situation of " just lower ", also comprises the situation that has other parts in the middle of it.On the contrary, certain part is positioned at that other parts " just go up " or when " just lower ", does not have other parts in the middle of the expression.
With reference to Fig. 1, electrostatic capacitance sensor 130 can be arranged on window panel 110 according to an embodiment of the invention.For example, window panel 110 can have the roughly shape of quadrangular plate, can form by the glass with light transmission or such as synthetic resin of acrylic resin etc.For example, window panel 110 can be formed by the synthetic resin material of tempered glass or propylene, PMMA, PC etc.Such as the embodiment of Fig. 1, the electrostatic capacitance touch sensing is arranged on the window panel, can embody the one-piece type electrostatic capacitance contact panel of window panel, also can be presented as independent touch sensing.In Fig. 1, window panel and the electrostatic capacitance sensor state diagram to be decomposed, but electrostatic capacitance sensor can directly form at window panel lower surface, and also may be with the state configuration that is stuck.
Electrostatic capacitance sensor 130 is configured in the window panel 110 times.In Fig. 1, the state that window panel 110 and electrostatic capacitance sensor 130 are decomposed is shown, but electrostatic capacitance sensor 130 can be in the state configuration of lower surface to paste of window panel 110.For example, electrostatic capacitance sensing 130 can be by sticking on the lower surface of window panel 110 with the transparent sticker of transparent sticker (optically clear adhesive, OCA) etc. such as optics.
On the other hand, though not shown, the design level of the belt form that has certain width and form can be formed along the edge of window panel 110.Design level can be formed by opaque material, for example, method printing or the evaporation of dielectric transparent materials by serigraphy etc. is formed.
On the other hand, as shown in Figures 1 and 2, electrostatic capacitance sensor 130 can possess the electrode pattern 131,132 and the wiring 133 of electric conductivity of the form of transparent conductive film.Electrode pattern 131,132 and wiring 133 can be formed on the electrostatic capacitance sensor substrate 137.And, be used for applying to wiring 133 the FPC(flexible printed circuit of electric signal: flexible print wiring board) 135 can be connected to wiring 133.
Electrostatic capacitance sensor substrate 137 can be formed by transparent materials such as glass or PET films, electrode pattern 131,132 can be on electrostatic capacitance sensor substrate 137 sputter or evaporation indium tin oxide (ITO, indium tin oxide), indium-zinc oxide (IZO, indium zinc oxide), zinc paste (ZnO) etc. and forming, wiring 133 can form the electric conductivity ink with the screen printing mode printing.
Electrode pattern 131,132 comprises the 1st electrode pattern 131 and the 2nd electrode pattern 132 that forms along the direction prolongation of mutually reporting to the leadship after accomplishing a task.For example, the 1st electrode pattern 131 and the 2nd electrode pattern 132 can prolong and form along mutually orthogonal direction, and as shown in Figures 1 and 2, the 1st electrode pattern 131 prolongs along Y direction, and the 2nd electrode pattern 132 can be arranged along X-direction.In the drawings, the morphosis that the 1st electrode pattern 131 is connected by the quadrilateral form is shown, the 2nd electrode pattern 132 is arranged by the state that the quadrilateral form separates at certain intervals, but the form of the 1st electrode pattern 131 and the 2nd electrode pattern 132 can diversely change.In addition, in the accompanying drawings, the 1st electrode pattern 131 is shown prolongs along Y direction, the 2nd electrode pattern 132 prolongs along X-direction, but the 1st electrode pattern 131 and the 2nd electrode pattern 132 can prolong and form towards mutually opposite direction.
And the 1st electrode pattern 131 can possess more than one, and the 1st electrode pattern 131 is in a plurality of situation, and a plurality of the 1st electrode patterns 131 are arranged side by side mutually across certain intervals.
On the other hand, the 2nd electrode pattern 132 comprises a plurality of electrode pattern element 132a, and the direction that these a plurality of electrode pattern element 132a report to the leadship after accomplishing a task along the direction that prolongs with the 1st electrode pattern 131 is with the state configuration that the is separated from each other both sides at the 1st electrode pattern 131.That is, the 2nd electrode pattern 132 is made of a plurality of electrode pattern element 132a along the adjacent arrangement of X-direction in Fig. 2.
Electrostatic capacitance sensor 130 comprises bridged electrodes pattern 134 according to an embodiment of the invention, and this bridged electrodes pattern 134 crosses adjacent electrode pattern element 132a on the 1st electrode pattern 131 that is positioned in the middle of it and mutually is electrically connected.That is, with reference to Fig. 2 and Fig. 3, the two ends 134a of bridged electrodes pattern 134 forms respectively with adjacent electrode pattern element 132a and contacts, thereby adjacent electrode pattern element 132a is electrically connected mutually.
Carbon nano-tube), indium tin oxide (ITO nano silver wire), CNT(carbon nano tube bridged electrodes pattern 134 can be by such as PEDOT, SNW(silver nano wire::, indium tin oxide), the transparent material with electric conductivity of indium-zinc oxide (IZO, indium zinc oxide), zinc paste (ZnO) etc. forms by mode of printing.Like this, bridged electrodes pattern 134 is formed by mode of printing by the transparent material of electric conductivity, thus with the forming and the mode of photolithographicallpatterned is compared based on metal film of past, can improve identification and observability, can seek engineering simplification and reduce production costs.
The electrode pattern element 132a that consists of the 2nd electrode pattern 132 by bridged electrodes pattern 134 is connected mutually, thereby each the 2nd electrode pattern 132 can form an electrode.
On the other hand, as shown in Figures 2 and 3, can also possess the insulation course 136 for electrical isolation the 1st electrode pattern 131 and bridged electrodes pattern 134.Insulation course 136 can be formed by the transparent material of the transparent electrical insulating properties such as synthetic resin.
Insulation course 136 is filled between the 1st electrode pattern 131 and the bridged electrodes pattern 134 as shown in Figure 3, thereby can electrical isolation the 1st electrode pattern 131 and bridged electrodes pattern 134, its result, and the 1st electrode pattern 131 and the 2nd electrode pattern 132 are by electrical isolation.
For convenient diagram, bridged electrodes pattern 134 and insulation course 136 in Fig. 1, have been omitted.
At this moment, as shown in Figures 2 and 3, the two ends 134a of bridged electrodes pattern 134 can form the outside at the two ends that are positioned at insulation course 134.In this structure, form easily bridged electrodes pattern 134, be more suitable for the relatively large situation of size of contact panel.
Following, with reference to Fig. 4 and Fig. 5 the electrostatic capacitance touch sensing according to other embodiments of the invention is described.Use identical symbol for the constituent element identical with embodiment described above, omit the explanation to the item that repeats.
According to present embodiment, as shown in Figures 3 and 4, the both-side ends 234a that connects the bridged electrodes pattern 234 of adjacent electrode pattern element 132a forms the inboard at the two ends that are positioned at insulation course.At this moment, can be presented as at insulation course 236 and form through holes and insert the end of bridged electrodes pattern 234 and the form that forms at this.In this structure, bridged electrodes pattern 134 does not extend to the outboard end of insulation course 134, thereby is more suitable in the relatively little situation of the size of contact panel.
Above the use meaning of term of employed " transparent " not only comprise on the optics fully transparent situation, also comprise the situation of partially transparent.
At the above embodiments of the invention that illustrated, but interest field of the present invention is not limited to this, also comprises all changes and modification in general technical staff of the technical field of the invention's scope that easy change is considered to be equal to according to embodiments of the invention.
The present invention relates to touch sensing, can use the input media into various display device, have industrial utilizability.

Claims (5)

1. an electrostatic capacitance touch sensing is characterized in that, comprising: substrate; The 1st electrode pattern and the 2nd electrode pattern, the direction of mutually reporting to the leadship after accomplishing a task on the upper surface edge of aforesaid substrate forms; And wiring, optionally be connected to above-mentioned the 1st electrode pattern and above-mentioned the 2nd electrode pattern;
Above-mentioned the 2nd electrode pattern comprises a plurality of electrode pattern elements, and the direction that these a plurality of electrode pattern elements are reported to the leadship after accomplishing a task along the direction that prolongs with above-mentioned the 1st electrode pattern is with the state configuration that the is separated from each other both sides at above-mentioned the 1st electrode pattern;
Above-mentioned adjacent electrode pattern element is electrically connected mutually by the bridged electrodes pattern that crosses on above-mentioned the 1st electrode pattern in the middle of being positioned at.
2. electrostatic capacitance touch sensing as claimed in claim 1 is characterized in that,
Also comprise the insulation course for above-mentioned the 1st electrode pattern of electrical isolation and above-mentioned bridged electrodes pattern.
3. electrostatic capacitance touch sensing as claimed in claim 2 is characterized in that,
The both-side ends of above-mentioned bridged electrodes pattern forms the outside at the two ends that are positioned at above-mentioned insulation course.
4. electrostatic capacitance touch sensing as claimed in claim 2 is characterized in that,
The both-side ends of above-mentioned bridged electrodes pattern forms the inboard at the two ends that are positioned at above-mentioned insulation course.
5. such as each the described electrostatic capacitance touch sensing in the claim 1 to 4, it is characterized in that,
Above-mentioned bridged electrodes pattern is formed by mode of printing by the transparent conductivity material.
CN2011800292292A 2010-06-14 2011-06-14 Capacitive touch sensor Pending CN102971696A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR1020100055874A KR101217591B1 (en) 2010-06-14 2010-06-14 Capacitive touch sensor
KR10-2010-0055874 2010-06-14
PCT/KR2011/004333 WO2011159080A2 (en) 2010-06-14 2011-06-14 Capacitive touch sensor

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CN102971696A true CN102971696A (en) 2013-03-13

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CN (1) CN102971696A (en)
TW (1) TWI450166B (en)
WO (1) WO2011159080A2 (en)

Cited By (3)

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Publication number Priority date Publication date Assignee Title
CN103412689A (en) * 2013-03-30 2013-11-27 深圳欧菲光科技股份有限公司 Capacitive touch screen
CN104423674A (en) * 2013-09-10 2015-03-18 宸鸿科技(厦门)有限公司 Touch panel and manufacturing method thereof
CN106406607A (en) * 2016-06-01 2017-02-15 友达光电股份有限公司 Touch panel and manufacturing method thereof

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TWI522855B (en) * 2012-11-08 2016-02-21 財團法人工業技術研究院 Structure and manufacturing method for the same
JP2016506574A (en) * 2012-12-18 2016-03-03 インターフレックス カンパニー リミテッド Touch panel including antireflection layer and manufacturing method thereof
KR20150061065A (en) * 2013-11-25 2015-06-04 주성엔지니어링(주) Apparatus, system and method of manufacturing a touch panel
CN106155385B (en) * 2015-04-07 2023-09-15 安徽精卓光显技术有限责任公司 Electronic equipment and touch screen thereof
KR102396125B1 (en) * 2015-08-18 2022-05-09 주식회사 엘지화학 Conductive film for touch panel, and touch panel and display apparatus including the same
KR200488420Y1 (en) 2016-02-12 2019-01-28 동우 화인켐 주식회사 Touch sensor
KR20210052895A (en) 2019-11-01 2021-05-11 동우 화인켐 주식회사 Touch Sensor and Method for Manufacturing the Same
KR102241975B1 (en) * 2019-12-19 2021-04-21 삼보모터스주식회사 Steering wheel

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CN103412689A (en) * 2013-03-30 2013-11-27 深圳欧菲光科技股份有限公司 Capacitive touch screen
CN103412689B (en) * 2013-03-30 2015-04-08 深圳欧菲光科技股份有限公司 Capacitive touch screen
CN104423674A (en) * 2013-09-10 2015-03-18 宸鸿科技(厦门)有限公司 Touch panel and manufacturing method thereof
CN104423674B (en) * 2013-09-10 2017-09-12 宸鸿科技(厦门)有限公司 Contact panel and preparation method thereof
CN106406607A (en) * 2016-06-01 2017-02-15 友达光电股份有限公司 Touch panel and manufacturing method thereof
CN106406607B (en) * 2016-06-01 2019-04-05 友达光电股份有限公司 Touch panel and manufacturing method thereof

Also Published As

Publication number Publication date
TWI450166B (en) 2014-08-21
KR20110136089A (en) 2011-12-21
KR101217591B1 (en) 2013-01-02
WO2011159080A2 (en) 2011-12-22
WO2011159080A3 (en) 2012-04-19
TW201209689A (en) 2012-03-01

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Application publication date: 20130313