CN102760018B - The monolithic capacitive touch screen of Touch-control error prevention - Google Patents

The monolithic capacitive touch screen of Touch-control error prevention Download PDF

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Publication number
CN102760018B
CN102760018B CN201210200566.XA CN201210200566A CN102760018B CN 102760018 B CN102760018 B CN 102760018B CN 201210200566 A CN201210200566 A CN 201210200566A CN 102760018 B CN102760018 B CN 102760018B
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China
Prior art keywords
layer
sensing electrode
induction field
perimeter circuit
restraining barrier
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Application number
CN201210200566.XA
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Chinese (zh)
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CN102760018A (en
Inventor
吕岳敏
林钢
吴永俊
刘骥
郑清交
朱世健
余荣
陶木春
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SHANTOU GOWORLD DISPLAY (PLANT II) CO Ltd
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SHANTOU GOWORLD DISPLAY (PLANT II) CO Ltd
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Priority to CN201210200566.XA priority Critical patent/CN102760018B/en
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—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

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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)
  • Position Input By Displaying (AREA)

Abstract

The present invention relates to a kind of monolithic capacitive touch screen of Touch-control error prevention, comprise transparency carrier, the sensing electrode layer be arranged on transparency carrier one side, cover layer and perimeter circuit, it is characterized in that: also comprise induction field restraining barrier and barrier insulating layer; Induction field restraining barrier is arranged on covers on layer, barrier insulating layer is arranged between induction field restraining barrier and perimeter circuit, and barrier insulating layer makes all to insulate between induction field restraining barrier and perimeter circuit, between induction field restraining barrier and the edge of sensing electrode layer.When the edge environ of finger contact sensing electrode layer, because the effect of induction field between shielding finger and perimeter circuit is played on induction field restraining barrier, inductance capacitance can not be produced between finger and perimeter circuit, and only between finger and sensing electrode layer, produce inductance capacitance, therefore mutual capacitance induction is avoided, avoid, to the false judgment touched, avoiding the interference of peripheral circuit to touch sensible, make the location of touch more accurate.

Description

The monolithic capacitive touch screen of Touch-control error prevention
Technical field
The present invention relates to a kind of touch-screen, particularly relate to a kind of monolithic capacitive touch screen of Touch-control error prevention.
Background technology
At present, monolithic capacitive touch screen, generally comprise transparency carrier, be arranged on the sensing electrode layer on transparency carrier one side, cover layer and perimeter circuit, cover the periphery that layer is in sensing electrode layer, perimeter circuit is arranged on to be covered on layer, perimeter circuit is connected with the edge electric of sensing electrode, sensing electrode layer comprises multiple the first sensing electrode extended along first direction, multiple the second sensing electrode extended along second direction, and jumper wire construction, the bottom that jumper wire construction comprises superimposed setting successively connects, cross-over block and top connecting bridge, jumper wire construction is arranged on the first sensing electrode, the infall of the second sensing electrode.
The coverage layer of above-mentioned monolithic capacitive touch screen generally adopts the insulating material such as black resin, to reach the object covering perimeter circuit.
Cover on layer because perimeter circuit is arranged on, when pointing from the another side of transparency carrier at capacitance touch screen surface touch, between certain perimeter circuit and finger, there is electric capacity C2, and there is between sensing electrode and finger electric capacity C1, when certain perimeter circuit forms a capacitor loop by C2, C1 and sensing electrode, then system can think that the sensing electrode that this perimeter circuit connects and this sensing electrode produce mutual capacitance and respond to, and consequently leads to erroneous judgement.That is, when pointing the periphery touch at this capacitance touch screen, the false sense that usually there will be " great-jump-forward " is answered, and causes the location to touching inaccurate.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of monolithic capacitive touch screen of Touch-control error prevention, and this monolithic capacitive touch screen can prevent peripheral circuit on the impact of touch sensible, makes the location of touch more accurate.The technical scheme adopted is as follows:
A kind of monolithic capacitive touch screen of Touch-control error prevention, comprise transparency carrier, be arranged on the sensing electrode layer on transparency carrier one side, cover layer and perimeter circuit, cover the periphery that layer is in sensing electrode layer, perimeter circuit is arranged on to be covered on layer, sensing electrode layer comprises multiple the first sensing electrode extended along first direction, multiple the second sensing electrode extended along second direction, and jumper wire construction, the bottom that jumper wire construction comprises superimposed setting successively connects, cross-over block and top connecting bridge, jumper wire construction is arranged on the infall of the first sensing electrode and the second sensing electrode, perimeter circuit and each the first sensing electrode, the edge electric of the second sensing electrode connects, it is characterized in that: also comprise induction field restraining barrier and barrier insulating layer, induction field restraining barrier is arranged on covers on layer, barrier insulating layer is arranged between induction field restraining barrier and perimeter circuit, and barrier insulating layer makes all to insulate between induction field restraining barrier and perimeter circuit, between induction field restraining barrier and the edge of sensing electrode layer.
Above-mentioned first sensing electrode, the second sensing electrode form by transparent conducting film figure, and bottom connects and top connecting bridge then can adopt metal level or transparent conducting film figure to form.
Monolithic capacitive touch screen of the present invention, owing to being provided with induction field restraining barrier and barrier insulating layer, the effect of induction field between shielding finger and perimeter circuit is played on induction field restraining barrier.Finger carries out touch control operation at the another side of transparency carrier, when the edge environ of finger contact sensing electrode layer, due to the barrier effect on induction field restraining barrier, inductance capacitance can not be produced between finger and perimeter circuit, and only between finger and sensing electrode layer, produce inductance capacitance, therefore avoiding mutual capacitance induction, avoiding the false judgment to touching, avoid the interference of peripheral circuit to touch sensible, make the location of touch more accurate.
As preferred version of the present invention, it is characterized in that: the edge of described sensing electrode layer is provided with by the connecting line of transparent conducting film figure, connecting line self-inductance measurement electrode layer extends toward perimeter circuit direction and covers to be covered on layer, and perimeter circuit covers on connecting line.Sensing electrode layer is connected with perimeter circuit by connecting line, connecting line is formed by nesa coating, the first sensing electrode, the second sensing electrode, top connecting bridge, connecting line and induction field restraining barrier can be formed at the same nesa coating of employing, be suitable for the making that top connecting bridge is electrically conducting transparent bridge, simplify manufacturing process, simultaneously because connecting line, top connecting bridge are formed by nesa coating, improve the quality of viewing and admiring display frame through capacitance touch screen.
As the further preferred version of the present invention, it is characterized in that: described induction field restraining barrier ground connection.Induction field restraining barrier ground connection, avoids stored charge on induction field restraining barrier and affects shield effectiveness.
As further preferred embodiments of the present invention, it is characterized in that: described induction field restraining barrier is patterned into many shielding lines, every bar shielding line and a perimeter circuit one_to_one corresponding; Each bar shielding line is all by a resistance eutral grounding.Described induction field restraining barrier is patterned into and perimeter circuit shielding line one to one, prevents from producing coupling capacitance by described induction field restraining barrier between each bar perimeter circuit, thus improve the accuracy touching location further.
It is above-mentioned when induction field restraining barrier is patterned into shielding line, because part of its periphery circuit is from longitudinal past transverse fold, corresponding shielding line is also from longitudinal past transverse fold, comparatively dense is compared in lateral part, therefore, when skew appears in contraposition, the wherein lateral part of a perimeter circuit and the longitudinal component of another perimeter circuit can be caused to produce coupling capacitance by same shielding line, impact touches the accuracy of location.For solving this problem, as further preferred embodiments of the present invention, it is characterized in that: from longitudinally toward transverse fold in described shielding line, comprise separate traversing section and longitudinal section, each traversing section and longitudinal section are all by a resistance eutral grounding.Owing to being divided into traversing section and longitudinal section from the shielding line longitudinally toward transverse fold, traversing section is separate with longitudinal section and be not connected, therefore, even if there is the situation of contraposition skew, also the wherein lateral part of a perimeter circuit and the longitudinal component of another perimeter circuit can not be caused to produce coupling capacitance by same shielding line, thus further increase the accuracy touching location.
As further preferred embodiments of the present invention, it is characterized in that: described coverage layer is opaque conductive layer, the resistivity covering layer is 1 × 10 4μ Ω ㎝ ~ 1 × 10 10μ Ω ㎝; Described barrier insulating layer extends on transparency carrier from the bezel covering layer; Described induction field restraining barrier is patterned into many shielding lines or multiple sheet shielding slab.By adopting the opaque conductive layer with certain resistance as coverage layer, many shielding lines or multiple sheet shielding slab is made to realize conducting or ground connection by covering layer, therefore, eliminate the resistive circuit connected between many shielding lines or multiple sheet shielding slab, thus make integral layout more succinct, reduce the difficulty of manufacturing process.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention one stratiform;
Fig. 2 is the planar structure schematic diagram of the embodiment of the present invention two;
Fig. 3 is the planar structure schematic diagram of the embodiment of the present invention three;
Fig. 4 is the planar structure schematic diagram of the embodiment of the present invention four;
Fig. 5 is the layer structure schematic diagram of the embodiment of the present invention four.
Embodiment
Be described further below in conjunction with accompanying drawing and the preferred embodiment of the present invention.
Embodiment one
As shown in Figure 1, the monolithic capacitive touch screen of this Touch-control error prevention, comprises transparency carrier 1, the sensing electrode layer 2 be arranged on transparency carrier 1 one side, covers layer 3, perimeter circuit 4, induction field restraining barrier 5 and barrier insulating layer 6; Cover the periphery that layer 3 is in sensing electrode layer 2, perimeter circuit 4 is arranged on to be covered on layer 3; Sensing electrode layer 2 comprises multiple the first sensing electrode 201, multiple the second sensing electrode 202 along second direction extension and the jumper wire construction 203 that extend along first direction; The bottom that jumper wire construction 203 comprises superimposed setting successively connects 2031, cross-over block 2032 and top connecting bridge 2033, and jumper wire construction 203 is arranged on the infall of the first sensing electrode 201 and the second sensing electrode 202; Perimeter circuit 4 is connected with the edge electric of each the first sensing electrode 201, second sensing electrode 202; Induction field restraining barrier 5 is arranged on covers on layer 3, barrier insulating layer 6 is arranged between induction field restraining barrier 5 and perimeter circuit 4, and barrier insulating layer 6 makes all to insulate between induction field restraining barrier 5 and perimeter circuit 4, between induction field restraining barrier 5 and the edge of sensing electrode layer 2; Induction field restraining barrier 5 ground connection.
Above-mentioned first sensing electrode 201, second sensing electrode 202 forms by transparent conducting film figure.Above-mentioned perimeter circuit 4 is connected with the edge electric of each the first sensing electrode 201, second sensing electrode 202, by being provided with by the connecting line 7 of transparent conducting film figure at the edge of sensing electrode layer 2, connecting line 7 self-inductance measurement electrode layer 2 extends toward perimeter circuit 4 direction and covers to be covered on layer 3, and perimeter circuit 4 covers on connecting line 7.
Embodiment two
As shown in Figure 2, when other parts are all identical with embodiment one, its difference is: induction field restraining barrier 5 is patterned into many shielding lines 8, every bar shielding line 8 and perimeter circuit 4 one_to_one corresponding; Each bar shielding line 8 is all by resistance 9 ground connection.
Embodiment three
As shown in Figure 3, when other parts are all identical with embodiment two, its difference is: from longitudinally toward transverse fold in shielding line 8, comprise separate traversing section 801 and longitudinal section 802, each traversing section 801 and longitudinal section 802 are all by resistance 9 ground connection.
Embodiment four
As shown in Figure 4 and Figure 5, when other parts are all identical with embodiment one, its difference is: coverage layer 3 adopts carbon microparticle (or metal micro particles) to be coated with the potpourri of resin and forms, wherein carbon microparticle (or metal micro particles) forms resin package structure, certain contact is there is between particle, making to cover layer 3 is opaque conductive layer, and the resistivity R covering layer 3 is 1 × 10 8μ Ω ㎝; Barrier insulating layer 6 extends on transparency carrier 1 from the bezel covering layer 3; Induction field restraining barrier 5 is patterned into multiple sheet shielding slab 10.

Claims (6)

1. the monolithic capacitive touch screen of a Touch-control error prevention, comprise transparency carrier, be arranged on the sensing electrode layer on transparency carrier one side, cover layer and perimeter circuit, cover the periphery that layer is in sensing electrode layer, perimeter circuit is arranged on to be covered on layer, sensing electrode layer comprises multiple the first sensing electrode extended along first direction, multiple the second sensing electrode extended along second direction, and jumper wire construction, the bottom that jumper wire construction comprises superimposed setting successively connects, cross-over block and top connecting bridge, jumper wire construction is arranged on the infall of the first sensing electrode and the second sensing electrode, perimeter circuit and each the first sensing electrode, the edge electric of the second sensing electrode connects, it is characterized in that: also comprise induction field restraining barrier and barrier insulating layer, induction field restraining barrier is arranged on covers on layer, barrier insulating layer is arranged between induction field restraining barrier and perimeter circuit, coverage layer, induction field restraining barrier, barrier insulating layer, perimeter circuit set gradually on the transparent substrate, and barrier insulating layer makes all to insulate between induction field restraining barrier and perimeter circuit, between induction field restraining barrier and the edge of sensing electrode layer.
2. monolithic capacitive touch screen as claimed in claim 1, it is characterized in that: the edge of described sensing electrode layer is provided with by the connecting line of transparent conducting film figure, connecting line self-inductance measurement electrode layer extends toward perimeter circuit direction and covers to be covered on layer, and perimeter circuit covers on connecting line.
3. monolithic capacitive touch screen as claimed in claim 1 or 2, is characterized in that: described induction field restraining barrier ground connection.
4. monolithic capacitive touch screen as claimed in claim 3, is characterized in that: described induction field restraining barrier is patterned into many shielding lines, every bar shielding line and a perimeter circuit one_to_one corresponding; Each bar shielding line is all by a resistance eutral grounding.
5. monolithic capacitive touch screen as claimed in claim 4, is characterized in that: from longitudinally toward transverse fold in described shielding line, comprise separate traversing section and longitudinal section, each traversing section and longitudinal section are all by a resistance eutral grounding.
6. monolithic capacitive touch screen as claimed in claim 3, is characterized in that: described coverage layer is opaque conductive layer, and the resistivity covering layer is 1 × 10 4μ Ω ㎝ ~ 1 × 10 10μ Ω ㎝; Described barrier insulating layer extends on transparency carrier from the bezel covering layer; Described induction field restraining barrier is patterned into many shielding lines or multiple sheet shielding slab; Each shielding line or sheet shielding slab ground connection.
CN201210200566.XA 2012-06-18 2012-06-18 The monolithic capacitive touch screen of Touch-control error prevention Active CN102760018B (en)

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Publication number Priority date Publication date Assignee Title
CN106803514B (en) * 2017-02-22 2020-06-30 上海天马微电子有限公司 Touch-control integrated organic light-emitting diode display device
CN107506101B (en) * 2017-08-29 2021-11-09 京东方科技集团股份有限公司 Touch control display panel
CN110430663B (en) * 2019-08-07 2022-08-30 深圳市恒翊科技有限公司 Electronic circuit structure in double-layer film

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101699378A (en) * 2009-09-23 2010-04-28 深超光电（深圳）有限公司 Touch panel and manufacturing method thereof
CN102270078A (en) * 2011-08-23 2011-12-07 汕头超声显示器有限公司 Single-chip capacitive touch screen with low-reflectivity connection bridge and manufacturing method thereof
CN102360258A (en) * 2011-09-30 2012-02-22 汕头超声显示器（二厂）有限公司 Monolithic capacitive touch screen and production method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101943978B (en) * 2009-07-06 2012-12-26 弗莱克斯电子有限责任公司 Capacitive touch screen panel and its manufacturing method, and capacitive touch sensor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101699378A (en) * 2009-09-23 2010-04-28 深超光电（深圳）有限公司 Touch panel and manufacturing method thereof
CN102270078A (en) * 2011-08-23 2011-12-07 汕头超声显示器有限公司 Single-chip capacitive touch screen with low-reflectivity connection bridge and manufacturing method thereof
CN102360258A (en) * 2011-09-30 2012-02-22 汕头超声显示器（二厂）有限公司 Monolithic capacitive touch screen and production method thereof

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